Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

99 files changed, 25572 insertions, 0 deletions

diff --git a/nsprpub/pr/include/Makefile.in b/nsprpub/pr/include/Makefile.in
new file mode 100644
index 0000000000..9cc425a84f
--- /dev/null
+++ b/nsprpub/pr/include/Makefile.in
@@ -0,0 +1,27 @@
+# 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#! gmake
+
+MOD_DEPTH	= ../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(MOD_DEPTH)/config/autoconf.mk
+
+DIRS = md private obsolete
+
+include $(topsrcdir)/config/config.mk
+
+HEADERS = $(wildcard $(srcdir)/*.h)
+
+RELEASE_HEADERS = $(HEADERS)
+RELEASE_HEADERS_DEST = $(RELEASE_INCLUDE_DIR)
+
+include $(topsrcdir)/config/rules.mk
+
+export:: $(RELEASE_HEADERS)
+	$(INSTALL) -m 444 $(RELEASE_HEADERS) $(dist_includedir)
diff --git a/nsprpub/pr/include/gencfg.c b/nsprpub/pr/include/gencfg.c
new file mode 100644
index 0000000000..3a67e9113e
--- /dev/null
+++ b/nsprpub/pr/include/gencfg.c
@@ -0,0 +1,265 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <stdio.h>
+
+#if defined(__sun)
+#ifndef SOLARIS
+error - SOLARIS is not defined
+#endif
+#endif
+
+#if defined(__hpux)
+#ifndef HPUX
+error - HPUX is not defined
+#endif
+#endif
+
+#if defined(__alpha)
+#if !(defined(_WIN32)) && !(defined(__linux)) && !(defined(__FreeBSD__))
+error - None of _WIN32, __linux, or __FreeBSD__ is defined
+#endif
+#endif
+
+#if defined(_IBMR2)
+#ifndef AIX
+error - AIX is not defined
+#endif
+#endif
+
+#if defined(linux)
+#ifndef LINUX
+error - LINUX is not defined
+#endif
+#endif
+
+#if defined(bsdi)
+#ifndef BSDI
+error - BSDI is not defined
+#endif
+#endif
+
+#if defined(M_UNIX)
+#ifndef SCO
+error - SCO is not defined
+#endif
+#endif
+#if !defined(M_UNIX) && defined(_USLC_)
+#ifndef UNIXWARE
+error - UNIXWARE is not defined
+#endif
+#endif
+
+#if defined(__APPLE__)
+#ifndef DARWIN
+error - DARWIN is not defined
+#endif
+#endif
+
+/************************************************************************/
+
+/* Generate cpucfg.h */
+
+#ifdef XP_PC
+#ifdef WIN32
+#define INT64   _PRInt64
+#else
+#define INT64   long
+#endif
+#else
+#if defined(HPUX) || defined(SCO) || defined(UNIXWARE)
+#define INT64   long
+#else
+#define INT64   long long
+#endif
+#endif
+
+struct align_short {
+    char c;
+    short a;
+};
+struct align_int {
+    char c;
+    int a;
+};
+struct align_long {
+    char c;
+    long a;
+};
+struct align_PRInt64 {
+    char c;
+    INT64 a;
+};
+struct align_fakelonglong {
+    char c;
+    struct {
+        long hi, lo;
+    } a;
+};
+struct align_float {
+    char c;
+    float a;
+};
+struct align_double {
+    char c;
+    double a;
+};
+struct align_pointer {
+    char c;
+    void *a;
+};
+
+#define ALIGN_OF(type) \
+    (((char*)&(((struct align_##type *)0)->a)) - ((char*)0))
+
+int bpb;
+
+/* Used if shell doesn't support redirection. By default, assume it does. */
+FILE *stream;
+
+static int Log2(int n)
+{
+    int log2 = 0;
+
+    if (n & (n-1)) {
+        log2++;
+    }
+    if (n >> 16) {
+        log2 += 16, n >>= 16;
+    }
+    if (n >> 8) {
+        log2 += 8, n >>= 8;
+    }
+    if (n >> 4) {
+        log2 += 4, n >>= 4;
+    }
+    if (n >> 2) {
+        log2 += 2, n >>= 2;
+    }
+    if (n >> 1) {
+        log2++;
+    }
+    return log2;
+}
+
+/* We assume that int's are 32 bits */
+static void do64(void)
+{
+    union {
+        int i;
+        char c[4];
+    } u;
+
+    u.i = 0x01020304;
+    if (u.c[0] == 0x01) {
+        fprintf(stream, "#undef  IS_LITTLE_ENDIAN\n");
+        fprintf(stream, "#define IS_BIG_ENDIAN 1\n\n");
+    } else {
+        fprintf(stream, "#define IS_LITTLE_ENDIAN 1\n");
+        fprintf(stream, "#undef  IS_BIG_ENDIAN\n\n");
+    }
+}
+
+static void do32(void)
+{
+    union {
+        long i;
+        char c[4];
+    } u;
+
+    u.i = 0x01020304;
+    if (u.c[0] == 0x01) {
+        fprintf(stream, "#undef  IS_LITTLE_ENDIAN\n");
+        fprintf(stream, "#define IS_BIG_ENDIAN 1\n\n");
+    } else {
+        fprintf(stream, "#define IS_LITTLE_ENDIAN 1\n");
+        fprintf(stream, "#undef  IS_BIG_ENDIAN\n\n");
+    }
+}
+
+/*
+** Concievably this could actually be used; but there is lots of code out
+** there with and's and shift's in it that assumes a byte is 8 bits, so
+** forget about porting THIS code to those non 8 bit byte machines.
+*/
+static void BitsPerByte(void)
+{
+    bpb = 8;
+}
+
+int main(int argc, char **argv)
+{
+    BitsPerByte();
+
+    /* If we got a command line argument, try to use it as the stream. */
+    ++argv;
+    if(*argv) {
+        if(!(stream = fopen ( *argv, "wt" ))) {
+            fprintf(stderr, "Could not write to output file %s.\n", *argv);
+            return 1;
+        }
+    } else {
+        stream = stdout;
+    }
+
+    fprintf(stream, "#ifndef nspr_cpucfg___\n");
+    fprintf(stream, "#define nspr_cpucfg___\n\n");
+
+    fprintf(stream, "/* AUTOMATICALLY GENERATED - DO NOT EDIT */\n\n");
+
+    if (sizeof(long) == 8) {
+        do64();
+    } else {
+        do32();
+    }
+    fprintf(stream, "#define PR_BYTES_PER_BYTE   %d\n", sizeof(char));
+    fprintf(stream, "#define PR_BYTES_PER_SHORT  %d\n", sizeof(short));
+    fprintf(stream, "#define PR_BYTES_PER_INT    %d\n", sizeof(int));
+    fprintf(stream, "#define PR_BYTES_PER_INT64  %d\n", 8);
+    fprintf(stream, "#define PR_BYTES_PER_LONG   %d\n", sizeof(long));
+    fprintf(stream, "#define PR_BYTES_PER_FLOAT  %d\n", sizeof(float));
+    fprintf(stream, "#define PR_BYTES_PER_DOUBLE %d\n\n", sizeof(double));
+
+    fprintf(stream, "#define PR_BITS_PER_BYTE    %d\n", bpb);
+    fprintf(stream, "#define PR_BITS_PER_SHORT   %d\n", bpb * sizeof(short));
+    fprintf(stream, "#define PR_BITS_PER_INT     %d\n", bpb * sizeof(int));
+    fprintf(stream, "#define PR_BITS_PER_INT64   %d\n", bpb * 8);
+    fprintf(stream, "#define PR_BITS_PER_LONG    %d\n", bpb * sizeof(long));
+    fprintf(stream, "#define PR_BITS_PER_FLOAT   %d\n", bpb * sizeof(float));
+    fprintf(stream, "#define PR_BITS_PER_DOUBLE  %d\n\n",
+            bpb * sizeof(double));
+
+    fprintf(stream, "#define PR_BITS_PER_BYTE_LOG2   %d\n", Log2(bpb));
+    fprintf(stream, "#define PR_BITS_PER_SHORT_LOG2  %d\n",
+            Log2(bpb * sizeof(short)));
+    fprintf(stream, "#define PR_BITS_PER_INT_LOG2    %d\n",
+            Log2(bpb * sizeof(int)));
+    fprintf(stream, "#define PR_BITS_PER_INT64_LOG2  %d\n", 6);
+    fprintf(stream, "#define PR_BITS_PER_LONG_LOG2   %d\n",
+            Log2(bpb * sizeof(long)));
+    fprintf(stream, "#define PR_BITS_PER_FLOAT_LOG2  %d\n",
+            Log2(bpb * sizeof(float)));
+    fprintf(stream, "#define PR_BITS_PER_DOUBLE_LOG2 %d\n\n",
+            Log2(bpb * sizeof(double)));
+
+    fprintf(stream, "#define PR_ALIGN_OF_SHORT   %d\n", ALIGN_OF(short));
+    fprintf(stream, "#define PR_ALIGN_OF_INT     %d\n", ALIGN_OF(int));
+    fprintf(stream, "#define PR_ALIGN_OF_LONG    %d\n", ALIGN_OF(long));
+    if (sizeof(INT64) < 8) {
+        /* this machine doesn't actually support PRInt64's */
+        fprintf(stream, "#define PR_ALIGN_OF_INT64   %d\n",
+                ALIGN_OF(fakelonglong));
+    } else {
+        fprintf(stream, "#define PR_ALIGN_OF_INT64   %d\n", ALIGN_OF(PRInt64));
+    }
+    fprintf(stream, "#define PR_ALIGN_OF_FLOAT   %d\n", ALIGN_OF(float));
+    fprintf(stream, "#define PR_ALIGN_OF_DOUBLE  %d\n", ALIGN_OF(double));
+    fprintf(stream, "#define PR_ALIGN_OF_POINTER %d\n\n", ALIGN_OF(pointer));
+
+    fprintf(stream, "#endif /* nspr_cpucfg___ */\n");
+    fclose(stream);
+
+    return 0;
+}
diff --git a/nsprpub/pr/include/md/Makefile.in b/nsprpub/pr/include/md/Makefile.in
new file mode 100644
index 0000000000..383c092cf8
--- /dev/null
+++ b/nsprpub/pr/include/md/Makefile.in
@@ -0,0 +1,42 @@
+# 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#! gmake
+
+MOD_DEPTH	= ../../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(MOD_DEPTH)/config/autoconf.mk
+
+# The .cfg files need to be exported and installed to support
+# cross-compilation.
+CONFIGS = $(wildcard $(srcdir)/*.cfg)
+
+include $(topsrcdir)/config/rules.mk
+
+export:: $(MDCPUCFG_H)
+	$(INSTALL) -m 444 $(CONFIGS) $(dist_includedir)/md
+	$(INSTALL) -m 444 $(srcdir)/$(MDCPUCFG_H) $(dist_includedir)
+	mv -f $(dist_includedir)/$(MDCPUCFG_H) $(dist_includedir)/prcpucfg.h
+
+install::
+	$(NSINSTALL) -D $(DESTDIR)$(includedir)/md
+	$(NSINSTALL) -t -m 644 $(CONFIGS) $(DESTDIR)$(includedir)/md
+	$(NSINSTALL) -t -m 644 $(srcdir)/$(MDCPUCFG_H) $(DESTDIR)$(includedir)
+	mv -f $(DESTDIR)$(includedir)/$(MDCPUCFG_H) $(DESTDIR)$(includedir)/prcpucfg.h
+
+release:: export
+	@echo "Copying machine-dependent prcpucfg.h"
+	@if test -z "$(BUILD_NUMBER)"; then \
+		echo "BUILD_NUMBER must be defined"; \
+		false; \
+	fi
+	@if test ! -d $(RELEASE_INCLUDE_DIR); then \
+		rm -rf $(RELEASE_INCLUDE_DIR); \
+		$(NSINSTALL) -D $(RELEASE_INCLUDE_DIR);\
+	fi
+	cp $(srcdir)/$(MDCPUCFG_H) $(RELEASE_INCLUDE_DIR)/prcpucfg.h
diff --git a/nsprpub/pr/include/md/_aix.h b/nsprpub/pr/include/md/_aix.h
new file mode 100644
index 0000000000..c2794d3368
--- /dev/null
+++ b/nsprpub/pr/include/md/_aix.h
@@ -0,0 +1,225 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_aix_defs_h___
+#define nspr_aix_defs_h___
+
+#include <sys/types.h>
+#if defined(_PR_PTHREADS) || defined(PTHREADS_USER)
+#include <pthread.h>
+#endif
+
+/*
+ * To pick up fd_set and the poll events.
+ */
+#include <sys/select.h>
+#include <sys/poll.h>
+
+/*
+ * Internal configuration macros
+ */
+
+#define PR_LINKER_ARCH          "aix"
+#define _PR_SI_SYSNAME          "AIX"
+#define _PR_SI_ARCHITECTURE     "rs6000"
+#define PR_DLL_SUFFIX           ".so"
+
+#define _PR_VMBASE              0x30000000
+#define _PR_STACK_VMBASE        0x50000000
+#define _MD_DEFAULT_STACK_SIZE  (2*65536L)
+#define _MD_MINIMUM_STACK_SIZE  (2*65536L)
+#define _MD_MMAP_FLAGS          MAP_PRIVATE
+
+#define NEED_TIME_R
+#undef  HAVE_STACK_GROWING_UP
+#undef  HAVE_WEAK_IO_SYMBOLS
+#undef  HAVE_WEAK_MALLOC_SYMBOLS
+#define HAVE_DLL
+#define USE_DLFCN
+#define _PR_HAVE_SOCKADDR_LEN
+#define _PR_POLL_AVAILABLE
+#define _PR_USE_POLL
+#define _PR_STAT_HAS_ONLY_ST_ATIME
+#ifdef _PR_INET6
+#define _PR_HAVE_INET_NTOP
+#define _PR_HAVE_GETHOSTBYNAME2
+#ifdef _AIX51 /* AIX 4.3.3 does not have AI_NUMERICHOST. */
+#define _PR_HAVE_GETADDRINFO
+#endif
+#endif
+#define _PR_HAVE_SYSV_SEMAPHORES
+#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
+#define _PR_ACCEPT_INHERIT_NONBLOCK
+
+/* Timer operations */
+#if defined(AIX_TIMERS)
+#define _MD_INTERVAL_INIT()
+
+extern PRIntervalTime _MD_AixGetInterval(void);
+#define _MD_GET_INTERVAL _MD_AixGetInterval
+
+extern PRIntervalTime _MD_AixIntervalPerSec(void);
+#define _MD_INTERVAL_PER_SEC _MD_AixIntervalPerSec
+
+#else  /* defined(AIX_TIMERS) */
+#define _MD_INTERVAL_USE_GTOD
+#endif  /* defined(AIX_TIMERS) */
+
+#ifdef AIX_HAVE_ATOMIC_OP_H
+/* The atomic operations */
+#include <sys/atomic_op.h>
+#define _PR_HAVE_ATOMIC_OPS
+#ifndef IS_64
+#define _PR_HAVE_ATOMIC_CAS
+#endif
+#define _MD_INIT_ATOMIC()
+#define _MD_ATOMIC_INCREMENT(val)   ((PRInt32)fetch_and_add((atomic_p)val, 1) + 1)
+#define _MD_ATOMIC_ADD(ptr, val)   ((PRInt32)fetch_and_add((atomic_p)ptr, val) + val)
+#define _MD_ATOMIC_DECREMENT(val)   ((PRInt32)fetch_and_add((atomic_p)val, -1) - 1)
+#define _MD_ATOMIC_SET(val, newval) _AIX_AtomicSet(val, newval)
+#endif /* AIX_HAVE_ATOMIC_OP_H */
+
+#define USE_SETJMP
+
+#include <setjmp.h>
+
+#define _MD_GET_SP(_t)              (_t)->md.jb[3]
+#define _MD_SET_THR_SP(_t, _sp)     ((_t)->md.jb[3] = (int) (_sp - 2 * 64))
+#define PR_NUM_GCREGS               _JBLEN
+
+#define CONTEXT(_th)                ((_th)->md.jb)
+#define SAVE_CONTEXT(_th)           _setjmp(CONTEXT(_th))
+#define GOTO_CONTEXT(_th)           _longjmp(CONTEXT(_th), 1)
+
+#ifdef PTHREADS_USER
+#include "_nspr_pthread.h"
+#else
+
+/*
+** Initialize the thread context preparing it to execute _main.
+*/
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)         \
+    PR_BEGIN_MACRO                    \
+        *status = PR_TRUE;              \
+    if (setjmp(CONTEXT(_thread))) { \
+        (*_main)();         \
+    }               \
+    _MD_GET_SP(_thread) = (int) (_sp - 2 * 64);     \
+    PR_END_MACRO
+
+#define _MD_SWITCH_CONTEXT(_thread)  \
+    if (!setjmp(CONTEXT(_thread))) { \
+    (_thread)->md.errcode = errno;  \
+    _PR_Schedule();          \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread) \
+{                    \
+    errno = (_thread)->md.errcode; \
+    _MD_SET_CURRENT_THREAD(_thread); \
+    longjmp(CONTEXT(_thread), 1); \
+}
+
+/* Machine-dependent (MD) data structures */
+
+struct _MDThread {
+    jmp_buf jb;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+            fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif  /* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#if !defined(_PR_PTHREADS)
+#define _MD_INIT_LOCKS()
+#endif
+
+#define _MD_NEW_LOCK(lock) PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+#define _MD_EARLY_INIT              _MD_EarlyInit
+#define _MD_FINAL_INIT          _PR_UnixInit
+#define _MD_INIT_RUNNING_CPU(cpu)   _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD         _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)
+#define _MD_RESUME_THREAD(thread)
+#define _MD_CLEAN_THREAD(_thread)
+#endif /* PTHREADS_USER */
+
+#ifdef AIX_RENAME_SELECT
+#define _MD_SELECT  select
+#define _MD_POLL    poll
+#endif
+
+extern void _MD_aix_map_sendfile_error(int err);
+
+#endif /* nspr_aix_defs_h___ */
diff --git a/nsprpub/pr/include/md/_aix32.cfg b/nsprpub/pr/include/md/_aix32.cfg
new file mode 100644
index 0000000000..23a3f5125f
--- /dev/null
+++ b/nsprpub/pr/include/md/_aix32.cfg
@@ -0,0 +1,115 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef AIX
+#define AIX
+#endif
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2	5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+
+#ifndef HAVE_LONG_LONG
+#define	HAVE_LONG_LONG
+#endif
+#undef	HAVE_ALIGNED_DOUBLES
+#undef	HAVE_ALIGNED_LONGLONGS
+
+#define PR_AF_INET6 24  /* same as AF_INET6 */
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+/* used by protypes.h only */
+#define _PR_AIX_HAVE_BSD_INT_TYPES
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_aix64.cfg b/nsprpub/pr/include/md/_aix64.cfg
new file mode 100644
index 0000000000..7efe896d1e
--- /dev/null
+++ b/nsprpub/pr/include/md/_aix64.cfg
@@ -0,0 +1,116 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef AIX
+#define AIX
+#endif
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BYTES_PER_WORD_LOG2   3
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2	6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 8
+
+#ifndef HAVE_LONG_LONG
+#define	HAVE_LONG_LONG
+#endif
+#undef	HAVE_ALIGNED_DOUBLES
+#undef	HAVE_ALIGNED_LONGLONGS
+
+#define PR_AF_INET6 24  /* same as AF_INET6 */
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+/* used by protypes.h only */
+#define _PR_AIX_HAVE_BSD_INT_TYPES
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_bsdi.cfg b/nsprpub/pr/include/md/_bsdi.cfg
new file mode 100644
index 0000000000..130cf820b0
--- /dev/null
+++ b/nsprpub/pr/include/md/_bsdi.cfg
@@ -0,0 +1,170 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef BSDI
+#define BSDI
+#endif
+
+#define PR_AF_INET6 24  /* same as AF_INET6 */
+
+#if defined(__i386__)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#ifndef HAVE_LONG_LONG
+#define HAVE_LONG_LONG
+#endif
+#undef	HAVE_ALIGNED_DOUBLES
+#undef	HAVE_ALIGNED_LONGLONGS
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__sparc__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+#ifndef HAVE_LONG_LONG
+#define HAVE_LONG_LONG
+#endif
+#define	HAVE_ALIGNED_DOUBLES
+#define	HAVE_ALIGNED_LONGLONGS
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#else
+
+#error "Unknown CPU architecture"
+
+#endif
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_bsdi.h b/nsprpub/pr/include/md/_bsdi.h
new file mode 100644
index 0000000000..99655dc3f2
--- /dev/null
+++ b/nsprpub/pr/include/md/_bsdi.h
@@ -0,0 +1,181 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_bsdi_defs_h___
+#define nspr_bsdi_defs_h___
+
+/*
+ * Internal configuration macros
+ */
+
+#include <sys/param.h>  /* for _BSDI_VERSION */
+
+#define PR_LINKER_ARCH  "bsdi"
+#define _PR_SI_SYSNAME "BSDI"
+#if defined(__i386__)
+#define _PR_SI_ARCHITECTURE "x86"
+#elif defined(__sparc__)
+#define _PR_SI_ARCHITECTURE "sparc"
+#else
+#error "Unknown CPU architecture"
+#endif
+#define PR_DLL_SUFFIX       ".so"
+
+#define _PR_STACK_VMBASE    0x50000000
+#define _MD_DEFAULT_STACK_SIZE  65536L
+#define _MD_MMAP_FLAGS          MAP_PRIVATE
+
+#define HAVE_BSD_FLOCK
+#define NEED_TIME_R
+#define _PR_HAVE_SOCKADDR_LEN
+#define _PR_NO_LARGE_FILES
+
+#define USE_SETJMP
+
+/* BSD/OS 4.3 and newer all have IPv6 support */
+#if _BSDI_VERSION >= 200105
+#define _PR_INET6
+#define _PR_HAVE_INET_NTOP
+#define _PR_HAVE_GETIPNODEBYNAME
+#define _PR_HAVE_GETIPNODEBYADDR
+#define _PR_HAVE_GETADDRINFO
+#define _PR_INET6_PROBE
+#endif
+
+#ifndef _PR_PTHREADS
+
+#include <setjmp.h>
+
+#if defined(_PR_BSDI_JMPBUF_IS_ARRAY)
+#define _MD_GET_SP(_t)    (_t)->md.context[2]
+#elif defined(_PR_BSDI_JMPBUF_IS_STRUCT)
+#define _MD_GET_SP(_t)    (_t)->md.context[0].jb_esp
+#else
+#error "Unknown BSDI jmp_buf type"
+#endif
+
+#define PR_NUM_GCREGS   _JBLEN
+#define PR_CONTEXT_TYPE jmp_buf
+
+#define CONTEXT(_th) ((_th)->md.context)
+
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)     \
+{                                 \
+    *status = PR_TRUE; \
+    if (setjmp(CONTEXT(_thread))) {               \
+    _main();                      \
+    }                                 \
+    _MD_GET_SP(_thread) = (int) (_sp - 64); \
+}
+
+#define _MD_SWITCH_CONTEXT(_thread)  \
+    if (!setjmp(CONTEXT(_thread))) { \
+    (_thread)->md.errcode = errno;  \
+    _PR_Schedule();          \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread) \
+{                    \
+    errno = (_thread)->md.errcode;       \
+    _MD_SET_CURRENT_THREAD(_thread); \
+    longjmp(CONTEXT(_thread), 1);    \
+}
+
+/* Machine-dependent (MD) data structures */
+
+struct _MDThread {
+    PR_CONTEXT_TYPE context;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+            fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif  /* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock) PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD         _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_CLEAN_THREAD(_thread)
+
+#endif /* ! _PR_PTHREADS */
+
+#define _MD_EARLY_INIT          _MD_EarlyInit
+#define _MD_FINAL_INIT          _PR_UnixInit
+
+#include <sys/syscall.h>
+#define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
+
+#define _MD_INTERVAL_USE_GTOD
+
+#endif /* nspr_bsdi_defs_h___ */
diff --git a/nsprpub/pr/include/md/_darwin.cfg b/nsprpub/pr/include/md/_darwin.cfg
new file mode 100644
index 0000000000..5e11893315
--- /dev/null
+++ b/nsprpub/pr/include/md/_darwin.cfg
@@ -0,0 +1,165 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#define PR_AF_INET6 30  /* same as AF_INET6 */
+
+#ifdef __LITTLE_ENDIAN__
+#undef IS_BIG_ENDIAN
+#define  IS_LITTLE_ENDIAN 1
+#else
+#undef IS_LITTLE_ENDIAN
+#define  IS_BIG_ENDIAN 1
+#endif
+
+#ifdef __LP64__
+#define IS_64
+#endif
+
+#ifndef HAVE_LONG_LONG
+#define	HAVE_LONG_LONG
+#endif
+#undef	HAVE_ALIGNED_DOUBLES
+#define	HAVE_ALIGNED_LONGLONGS 1
+
+#ifdef IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+#define PR_BITS_PER_DWORD   64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+#define PR_BITS_PER_DWORD_LOG2  6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+#define PR_ALIGN_OF_DWORD   8
+
+#else /* IS_64 */
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+#define PR_BITS_PER_DWORD   64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#endif /* IS_64 */
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
+
diff --git a/nsprpub/pr/include/md/_darwin.h b/nsprpub/pr/include/md/_darwin.h
new file mode 100644
index 0000000000..b3f89fbf8d
--- /dev/null
+++ b/nsprpub/pr/include/md/_darwin.h
@@ -0,0 +1,308 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_darwin_defs_h___
+#define nspr_darwin_defs_h___
+
+#include "prthread.h"
+
+#include <libkern/OSAtomic.h>
+#include <sys/syscall.h>
+
+#ifdef __APPLE__
+#include <AvailabilityMacros.h>
+#include <TargetConditionals.h>
+#endif
+
+#define PR_LINKER_ARCH  "darwin"
+#define _PR_SI_SYSNAME  "DARWIN"
+#ifdef __i386__
+#define _PR_SI_ARCHITECTURE "x86"
+#elif defined(__x86_64__)
+#define _PR_SI_ARCHITECTURE "x86-64"
+#elif defined(__ppc__)
+#define _PR_SI_ARCHITECTURE "ppc"
+#elif defined(__arm__)
+#define _PR_SI_ARCHITECTURE "arm"
+#elif defined(__aarch64__)
+#define _PR_SI_ARCHITECTURE "aarch64"
+#else
+#error "Unknown CPU architecture"
+#endif
+#define PR_DLL_SUFFIX       ".dylib"
+
+#define _PR_VMBASE              0x30000000
+#define _PR_STACK_VMBASE    0x50000000
+#define _MD_DEFAULT_STACK_SIZE  65536L
+#define _MD_MMAP_FLAGS          MAP_PRIVATE
+
+#undef  HAVE_STACK_GROWING_UP
+#define HAVE_DLL
+#define USE_DLFCN
+#define _PR_HAVE_SOCKADDR_LEN
+#define _PR_STAT_HAS_ST_ATIMESPEC
+#define _PR_HAVE_LARGE_OFF_T
+#define _PR_HAVE_SYSV_SEMAPHORES
+#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
+
+#define _PR_INET6
+/*
+ * I'd prefer to use getipnodebyname and getipnodebyaddr but the
+ * getipnodebyname(3) man page on Mac OS X 10.2 says they are not
+ * thread-safe.  AI_V4MAPPED|AI_ADDRCONFIG doesn't work either.
+ */
+#define _PR_HAVE_GETHOSTBYNAME2
+#define _PR_HAVE_GETADDRINFO
+/*
+ * On Mac OS X 10.2, gethostbyaddr fails with h_errno=NO_RECOVERY
+ * if you pass an IPv4-mapped IPv6 address to it.
+ */
+#define _PR_GHBA_DISALLOW_V4MAPPED
+#ifdef __APPLE__
+#if !defined(MAC_OS_X_VERSION_10_3) || \
+    MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_3
+/*
+ * socket(AF_INET6) fails with EPROTONOSUPPORT on Mac OS X 10.1.
+ * IPv6 under OS X 10.2 and below is not complete (see bug 222031).
+ */
+#define _PR_INET6_PROBE
+#endif /* DT < 10.3 */
+#if defined(MAC_OS_X_VERSION_10_2) && \
+    MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_2
+/* Mac OS X 10.2 has inet_ntop and inet_pton. */
+#define _PR_HAVE_INET_NTOP
+#endif /* DT >= 10.2 */
+#endif /* __APPLE__ */
+#define _PR_IPV6_V6ONLY_PROBE
+/* The IPV6_V6ONLY socket option is not defined on Mac OS X 10.1. */
+#ifndef IPV6_V6ONLY
+#define IPV6_V6ONLY 27
+#endif
+
+#ifdef __ppc__
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+extern PRInt32 _PR_DarwinPPC_AtomicIncrement(PRInt32 *val);
+#define _MD_ATOMIC_INCREMENT(val)   _PR_DarwinPPC_AtomicIncrement(val)
+extern PRInt32 _PR_DarwinPPC_AtomicDecrement(PRInt32 *val);
+#define _MD_ATOMIC_DECREMENT(val)   _PR_DarwinPPC_AtomicDecrement(val)
+extern PRInt32 _PR_DarwinPPC_AtomicSet(PRInt32 *val, PRInt32 newval);
+#define _MD_ATOMIC_SET(val, newval) _PR_DarwinPPC_AtomicSet(val, newval)
+extern PRInt32 _PR_DarwinPPC_AtomicAdd(PRInt32 *ptr, PRInt32 val);
+#define _MD_ATOMIC_ADD(ptr, val)    _PR_DarwinPPC_AtomicAdd(ptr, val)
+#endif /* __ppc__ */
+
+#ifdef __i386__
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+extern PRInt32 _PR_Darwin_x86_AtomicIncrement(PRInt32 *val);
+#define _MD_ATOMIC_INCREMENT(val)   _PR_Darwin_x86_AtomicIncrement(val)
+extern PRInt32 _PR_Darwin_x86_AtomicDecrement(PRInt32 *val);
+#define _MD_ATOMIC_DECREMENT(val)   _PR_Darwin_x86_AtomicDecrement(val)
+extern PRInt32 _PR_Darwin_x86_AtomicSet(PRInt32 *val, PRInt32 newval);
+#define _MD_ATOMIC_SET(val, newval) _PR_Darwin_x86_AtomicSet(val, newval)
+extern PRInt32 _PR_Darwin_x86_AtomicAdd(PRInt32 *ptr, PRInt32 val);
+#define _MD_ATOMIC_ADD(ptr, val)    _PR_Darwin_x86_AtomicAdd(ptr, val)
+#endif /* __i386__ */
+
+#ifdef __x86_64__
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+extern PRInt32 _PR_Darwin_x86_64_AtomicIncrement(PRInt32 *val);
+#define _MD_ATOMIC_INCREMENT(val)   _PR_Darwin_x86_64_AtomicIncrement(val)
+extern PRInt32 _PR_Darwin_x86_64_AtomicDecrement(PRInt32 *val);
+#define _MD_ATOMIC_DECREMENT(val)   _PR_Darwin_x86_64_AtomicDecrement(val)
+extern PRInt32 _PR_Darwin_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval);
+#define _MD_ATOMIC_SET(val, newval) _PR_Darwin_x86_64_AtomicSet(val, newval)
+extern PRInt32 _PR_Darwin_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val);
+#define _MD_ATOMIC_ADD(ptr, val)    _PR_Darwin_x86_64_AtomicAdd(ptr, val)
+#endif /* __x86_64__ */
+
+#ifdef __aarch64__
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+#define _MD_ATOMIC_INCREMENT(val)   __sync_add_and_fetch(val, 1)
+#define _MD_ATOMIC_DECREMENT(val)   __sync_sub_and_fetch(val, 1)
+#define _MD_ATOMIC_SET(val, newval) __sync_lock_test_and_set(val, newval)
+#define _MD_ATOMIC_ADD(ptr, val)    __sync_add_and_fetch(ptr, val)
+#endif /* __aarch64__ */
+
+#if defined(__arm__)
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+#define _MD_ATOMIC_INCREMENT(val)   OSAtomicIncrement32(val)
+#define _MD_ATOMIC_DECREMENT(val)   OSAtomicDecrement32(val)
+static inline PRInt32 _MD_ATOMIC_SET(PRInt32 *val, PRInt32 newval)
+{
+    PRInt32 oldval;
+    do {
+        oldval = *val;
+    } while (!OSAtomicCompareAndSwap32(oldval, newval, val));
+    return oldval;
+}
+#define _MD_ATOMIC_ADD(ptr, val)    OSAtomicAdd32(val, ptr)
+#endif /* __arm__ */
+
+#define USE_SETJMP
+
+#if !defined(_PR_PTHREADS)
+
+#include <setjmp.h>
+
+#define PR_CONTEXT_TYPE jmp_buf
+
+#define CONTEXT(_th)       ((_th)->md.context)
+#define _MD_GET_SP(_th)    (((struct sigcontext *) (_th)->md.context)->sc_onstack)
+#define PR_NUM_GCREGS       _JBLEN
+
+/*
+** Initialize a thread context to run "_main()" when started
+*/
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
+{  \
+    *status = PR_TRUE;  \
+    if (setjmp(CONTEXT(_thread))) {  \
+        _main();  \
+    }  \
+    _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
+}
+
+#define _MD_SWITCH_CONTEXT(_thread)  \
+    if (!setjmp(CONTEXT(_thread))) {  \
+    (_thread)->md.errcode = errno;  \
+    _PR_Schedule();  \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread) \
+{   \
+    errno = (_thread)->md.errcode;  \
+    _MD_SET_CURRENT_THREAD(_thread);  \
+    longjmp(CONTEXT(_thread), 1);  \
+}
+
+/* Machine-dependent (MD) data structures */
+
+struct _MDThread {
+    PR_CONTEXT_TYPE context;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+            fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif  /* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock) PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+extern PRStatus _MD_InitializeThread(PRThread *thread);
+
+#define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD                 _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
+#define _MD_RESUME_THREAD(thread)       _MD_resume_thread
+#define _MD_CLEAN_THREAD(_thread)
+
+extern PRStatus _MD_CREATE_THREAD(
+    PRThread *thread,
+    void (*start) (void *),
+    PRThreadPriority priority,
+    PRThreadScope scope,
+    PRThreadState state,
+    PRUint32 stackSize);
+extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri);
+extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout);
+extern PRStatus _MD_WAKEUP_WAITER(PRThread *);
+extern void _MD_YIELD(void);
+
+#endif /* ! _PR_PTHREADS */
+
+#define _MD_EARLY_INIT          _MD_EarlyInit
+#define _MD_FINAL_INIT          _PR_UnixInit
+#define _MD_INTERVAL_INIT       _PR_Mach_IntervalInit
+#define _MD_GET_INTERVAL        _PR_Mach_GetInterval
+#define _MD_INTERVAL_PER_SEC    _PR_Mach_TicksPerSecond
+
+extern void             _MD_EarlyInit(void);
+extern void             _PR_Mach_IntervalInit(void);
+extern PRIntervalTime   _PR_Mach_GetInterval(void);
+extern PRIntervalTime   _PR_Mach_TicksPerSecond(void);
+
+/*
+ * We wrapped the select() call.  _MD_SELECT refers to the built-in,
+ * unwrapped version.
+ */
+#define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
+
+/* For writev() */
+#include <sys/uio.h>
+
+#endif /* nspr_darwin_defs_h___ */
diff --git a/nsprpub/pr/include/md/_freebsd.cfg b/nsprpub/pr/include/md/_freebsd.cfg
new file mode 100644
index 0000000000..1d1039a5b8
--- /dev/null
+++ b/nsprpub/pr/include/md/_freebsd.cfg
@@ -0,0 +1,594 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef FREEBSD
+#define FREEBSD
+#endif
+
+#define PR_AF_INET6 28  /* same as AF_INET6 */
+
+#ifndef HAVE_LONG_LONG
+#define HAVE_LONG_LONG
+#endif
+
+#if defined(__i386__)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#undef	HAVE_ALIGNED_DOUBLES
+#undef	HAVE_ALIGNED_LONGLONGS
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+
+#elif defined(__alpha__)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define	HAVE_ALIGNED_DOUBLES
+#define	HAVE_ALIGNED_LONGLONGS
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   3
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+
+#elif defined(__sparc__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+#define	HAVE_ALIGNED_DOUBLES
+#define	HAVE_ALIGNED_LONGLONGS
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   3
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+
+#elif defined(__ia64__)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define	HAVE_ALIGNED_DOUBLES
+#define	HAVE_ALIGNED_LONGLONGS
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   3
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#elif defined(__amd64__)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define	HAVE_ALIGNED_DOUBLES
+#define	HAVE_ALIGNED_LONGLONGS
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   3
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#elif defined(__powerpc64__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN    1
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2   3
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__powerpc__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN    1
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__aarch64__)
+
+#undef  IS_BIG_ENDIAN
+#define IS_LITTLE_ENDIAN 1
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2  3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#elif defined(__arm__)
+
+#if defined(__ARMEB__) || defined(__ARM_BIG_ENDIAN__)
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN    1
+#else
+#undef  IS_BIG_ENDIAN
+#define IS_LITTLE_ENDIAN 1
+#endif
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__mips64__)
+
+#if defined(__MIPSEB__) || defined(_MIPSEB)
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN    1
+#else
+#undef  IS_BIG_ENDIAN
+#define IS_LITTLE_ENDIAN 1
+#endif
+
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2   3
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__mips__)
+
+#if defined(__MIPSEB__) || defined(_MIPSEB)
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN    1
+#else
+#undef  IS_BIG_ENDIAN
+#define IS_LITTLE_ENDIAN 1
+#endif
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#else
+
+#error "Unknown CPU architecture"
+
+#endif
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_freebsd.h b/nsprpub/pr/include/md/_freebsd.h
new file mode 100644
index 0000000000..118cb9f933
--- /dev/null
+++ b/nsprpub/pr/include/md/_freebsd.h
@@ -0,0 +1,255 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_freebsd_defs_h___
+#define nspr_freebsd_defs_h___
+
+#include "prthread.h"
+
+#if __FreeBSD__ >= 2
+#include <osreldate.h>  /* for __FreeBSD_version */
+#endif
+#include <sys/syscall.h>
+
+#define PR_LINKER_ARCH  "freebsd"
+#define _PR_SI_SYSNAME  "FREEBSD"
+#if defined(__i386__)
+#define _PR_SI_ARCHITECTURE "x86"
+#elif defined(__alpha__)
+#define _PR_SI_ARCHITECTURE "alpha"
+#elif defined(__sparc__)
+#define _PR_SI_ARCHITECTURE "sparc"
+#elif defined(__ia64__)
+#define _PR_SI_ARCHITECTURE "ia64"
+#elif defined(__amd64__)
+#define _PR_SI_ARCHITECTURE "amd64"
+#elif defined(__powerpc64__)
+#define _PR_SI_ARCHITECTURE "powerpc64"
+#elif defined(__powerpc__)
+#define _PR_SI_ARCHITECTURE "powerpc"
+#elif defined(__aarch64__)
+#define _PR_SI_ARCHITECTURE "aarch64"
+#elif defined(__arm__)
+#define _PR_SI_ARCHITECTURE "arm"
+#elif defined(__mips64__)
+#define _PR_SI_ARCHITECTURE "mips64"
+#elif defined(__mips__)
+#define _PR_SI_ARCHITECTURE "mips"
+#else
+#error "Unknown CPU architecture"
+#endif
+#if defined(__ELF__)
+#define PR_DLL_SUFFIX          ".so"
+#else
+#define PR_DLL_SUFFIX          ".so.1.0"
+#endif
+
+#define _PR_VMBASE              0x30000000
+#define _PR_STACK_VMBASE    0x50000000
+#define _MD_DEFAULT_STACK_SIZE  65536L
+#define _MD_MMAP_FLAGS          MAP_PRIVATE
+
+#undef  HAVE_STACK_GROWING_UP
+#define HAVE_DLL
+#define USE_DLFCN
+#define _PR_HAVE_SOCKADDR_LEN
+#define _PR_STAT_HAS_ST_ATIMESPEC
+#define _PR_HAVE_LARGE_OFF_T
+
+#if defined(_PR_PTHREADS)
+#if __FreeBSD_version >= 400008
+/*
+ * libc_r before this version of FreeBSD doesn't have poll().
+ * Although libc has poll(), it is not thread-safe so we can't
+ * use it in the pthreads version.
+ */
+#define _PR_POLL_AVAILABLE
+#endif
+#else
+#if __FreeBSD_version >= 300000
+#define _PR_POLL_AVAILABLE
+#define _PR_USE_POLL
+#endif
+#endif
+
+#define _PR_HAVE_SYSV_SEMAPHORES
+#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
+
+#if __FreeBSD_version >= 400014
+#define _PR_INET6
+#define _PR_HAVE_INET_NTOP
+#define _PR_HAVE_GETHOSTBYNAME2
+#define _PR_HAVE_GETADDRINFO
+#define _PR_INET6_PROBE
+#define _PR_IPV6_V6ONLY_PROBE
+#endif
+
+#define USE_SETJMP
+
+#ifndef _PR_PTHREADS
+#include <setjmp.h>
+
+#define PR_CONTEXT_TYPE sigjmp_buf
+
+#define CONTEXT(_th) ((_th)->md.context)
+
+#define _MD_GET_SP(_th)    (_th)->md.context[0]._sjb[2]
+#define PR_NUM_GCREGS   _JBLEN
+
+/*
+** Initialize a thread context to run "_main()" when started
+*/
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
+{  \
+    *status = PR_TRUE;  \
+    if (sigsetjmp(CONTEXT(_thread), 1)) {  \
+        _main();  \
+    }  \
+    _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
+}
+
+#define _MD_SWITCH_CONTEXT(_thread)  \
+    if (!sigsetjmp(CONTEXT(_thread), 1)) {  \
+    (_thread)->md.errcode = errno;  \
+    _PR_Schedule();  \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread) \
+{   \
+    errno = (_thread)->md.errcode;  \
+    _MD_SET_CURRENT_THREAD(_thread);  \
+    siglongjmp(CONTEXT(_thread), 1);  \
+}
+
+/* Machine-dependent (MD) data structures */
+
+struct _MDThread {
+    PR_CONTEXT_TYPE context;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+            fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif  /* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock) PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+extern PRStatus _MD_InitializeThread(PRThread *thread);
+
+#define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD                 _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
+#define _MD_RESUME_THREAD(thread)       _MD_resume_thread
+#define _MD_CLEAN_THREAD(_thread)
+
+extern PRStatus _MD_CREATE_THREAD(
+    PRThread *thread,
+    void (*start) (void *),
+    PRThreadPriority priority,
+    PRThreadScope scope,
+    PRThreadState state,
+    PRUint32 stackSize);
+extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri);
+extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout);
+extern PRStatus _MD_WAKEUP_WAITER(PRThread *);
+extern void _MD_YIELD(void);
+
+#endif /* ! _PR_PTHREADS */
+
+extern void _MD_EarlyInit(void);
+
+#define _MD_EARLY_INIT                  _MD_EarlyInit
+#define _MD_FINAL_INIT          _PR_UnixInit
+#define _PR_HAVE_CLOCK_MONOTONIC
+
+/*
+ * We wrapped the select() call.  _MD_SELECT refers to the built-in,
+ * unwrapped version.
+ */
+#define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
+
+#if defined(_PR_POLL_AVAILABLE)
+#include <poll.h>
+#define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout)
+#endif
+
+/* freebsd has INADDR_LOOPBACK defined, but in /usr/include/rpc/types.h, and I didn't
+   want to be including that.. */
+#ifndef INADDR_LOOPBACK
+#define INADDR_LOOPBACK         (u_long)0x7F000001
+#endif
+
+/* For writev() */
+#include <sys/uio.h>
+
+#endif /* nspr_freebsd_defs_h___ */
diff --git a/nsprpub/pr/include/md/_hpux.h b/nsprpub/pr/include/md/_hpux.h
new file mode 100644
index 0000000000..2d8017e972
--- /dev/null
+++ b/nsprpub/pr/include/md/_hpux.h
@@ -0,0 +1,288 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_xhppa_defs_h___
+#define nspr_xhppa_defs_h___
+
+/*
+ * Internal configuration macros
+ */
+
+#define PR_LINKER_ARCH    "hpux"
+#define _PR_SI_SYSNAME   "HPUX"
+#ifdef __ia64
+#define _PR_SI_ARCHITECTURE "ia64"
+#define PR_DLL_SUFFIX        ".so"
+#else
+/*
+ * _PR_SI_ARCHITECTURE must be "hppa1.1" for backward compatibility.
+ * It was changed to "hppa" in NSPR 4.6.2, but was changed back in
+ * NSPR 4.6.4.
+ */
+#define _PR_SI_ARCHITECTURE "hppa1.1"
+#define PR_DLL_SUFFIX        ".sl"
+#endif
+
+#define _PR_VMBASE        0x30000000
+#define _PR_STACK_VMBASE    0x50000000
+/*
+ * _USE_BIG_FDS increases the size of fd_set from 256 bytes to
+ * about 7500 bytes.  PR_Poll allocates three fd_sets on the
+ * stack, so it is safer to also increase the default thread
+ * stack size.
+ */
+#define _MD_DEFAULT_STACK_SIZE    (2*65536L)
+#define _MD_MINIMUM_STACK_SIZE    (2*65536L)
+#define _MD_MMAP_FLAGS          MAP_PRIVATE
+
+#define NEED_TIME_R
+
+#define HAVE_STACK_GROWING_UP
+#undef  HAVE_WEAK_IO_SYMBOLS
+#undef  HAVE_WEAK_MALLOC_SYMBOLS
+#define HAVE_DLL
+#ifdef IS_64
+#define USE_DLFCN
+#else
+#define USE_HPSHL
+#endif
+#ifndef HAVE_STRERROR
+#define HAVE_STRERROR
+#endif
+#define _PR_POLL_AVAILABLE
+#define _PR_USE_POLL
+#define _PR_STAT_HAS_ONLY_ST_ATIME
+#define _PR_HAVE_POSIX_SEMAPHORES
+#define PR_HAVE_POSIX_NAMED_SHARED_MEMORY
+#define _PR_ACCEPT_INHERIT_NONBLOCK
+
+#if defined(__ia64)
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+extern PRInt32 _PR_ia64_AtomicIncrement(PRInt32 *val);
+#define _MD_ATOMIC_INCREMENT          _PR_ia64_AtomicIncrement
+extern PRInt32 _PR_ia64_AtomicDecrement(PRInt32 *val);
+#define _MD_ATOMIC_DECREMENT          _PR_ia64_AtomicDecrement
+extern PRInt32 _PR_ia64_AtomicAdd(PRInt32 *ptr, PRInt32 val);
+#define _MD_ATOMIC_ADD                _PR_ia64_AtomicAdd
+extern PRInt32 _PR_ia64_AtomicSet(PRInt32 *val, PRInt32 newval);
+#define _MD_ATOMIC_SET                _PR_ia64_AtomicSet
+#endif
+
+#define _PR_HAVE_GETIPNODEBYNAME
+#define _PR_HAVE_GETIPNODEBYADDR
+#define _PR_HAVE_GETADDRINFO
+#ifdef _PR_INET6
+#define _PR_HAVE_INET_NTOP
+#else
+#define _PR_INET6_PROBE
+
+/* for HP-UX 11.11 without IPv6 */
+#ifndef AF_INET6
+#define AF_INET6       22
+#define AI_CANONNAME   2
+#define AI_NUMERICHOST 4
+#define AI_NUMERICSERV 8
+#define AI_V4MAPPED    0x00000010
+#define AI_ADDRCONFIG  0x00000040
+#define AI_ALL         0x00000020
+#define AI_DEFAULT     (AI_V4MAPPED|AI_ADDRCONFIG)
+#define NI_NUMERICHOST 2
+struct addrinfo {
+    int        ai_flags;    /* AI_PASSIVE, AI_CANONNAME */
+    int        ai_family;   /* PF_xxx */
+    int        ai_socktype; /* SOCK_xxx */
+    int        ai_protocol; /* IPPROTO_xxx for IPv4 and IPv6 */
+    socklen_t  ai_addrlen;  /* length of ai_addr */
+    char            *ai_canonname;    /* canonical name for host */
+    struct sockaddr *ai_addr;     /* binary address */
+    struct addrinfo *ai_next;     /* next structure in linked list */
+};
+#endif    /* for HP-UX 11.11 without IPv6 */
+
+#define _PR_HAVE_MD_SOCKADDR_IN6
+/* isomorphic to struct in6_addr on HP-UX B.11.23 */
+struct _md_in6_addr {
+    union {
+        PRUint8   _S6_u8[16];
+        PRUint16  _S6_u16[8];
+        PRUint32  _S6_u32[4];
+        PRUint32  __S6_align;
+    } _s6_un;
+};
+/* isomorphic to struct sockaddr_in6 on HP-UX B.11.23 */
+struct _md_sockaddr_in6 {
+    PRUint16 sin6_family;
+    PRUint16 sin6_port;
+    PRUint32 sin6_flowinfo;
+    struct _md_in6_addr sin6_addr;
+    PRUint32 sin6_scope_id;
+};
+#endif
+
+#if !defined(_PR_PTHREADS)
+
+#include <syscall.h>
+#include <setjmp.h>
+
+#define USE_SETJMP
+
+#define _MD_GET_SP(_t) (*((int *)((_t)->md.jb) + 1))
+#define PR_NUM_GCREGS _JBLEN
+/* Caveat: This makes jmp_buf full of doubles. */
+#define CONTEXT(_th) ((_th)->md.jb)
+
+/* Stack needs two frames (64 bytes) at the bottom */ \
+#define _MD_SET_THR_SP(_t, _sp)     ((_MD_GET_SP(_t)) = (int) (_sp + 64 *2))
+#define SAVE_CONTEXT(_th)           _setjmp(CONTEXT(_th))
+#define GOTO_CONTEXT(_th)           _longjmp(CONTEXT(_th), 1)
+
+#if !defined(PTHREADS_USER)
+
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
+{ \
+    *(status) = PR_TRUE; \
+    if (_setjmp(CONTEXT(_thread))) (*_main)(); \
+    /* Stack needs two frames (64 bytes) at the bottom */ \
+    (_MD_GET_SP(_thread)) = (int) ((_sp) + 64*2); \
+}
+
+#define _MD_SWITCH_CONTEXT(_thread) \
+    if (!_setjmp(CONTEXT(_thread))) { \
+    (_thread)->md.errcode = errno; \
+    _PR_Schedule(); \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread) \
+{ \
+    errno = (_thread)->md.errcode; \
+    _MD_SET_CURRENT_THREAD(_thread); \
+    _longjmp(CONTEXT(_thread), 1); \
+}
+
+/* Machine-dependent (MD) data structures.  HP-UX has no native threads. */
+
+struct _MDThread {
+    jmp_buf jb;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+            fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif  /* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock) PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+#define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD                 _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
+#define _MD_RESUME_THREAD(thread)       _MD_resume_thread
+#define _MD_CLEAN_THREAD(_thread)
+
+#else /* PTHREADS_USER  */
+
+#include "_nspr_pthread.h"
+
+#endif /* PTHREADS_USER */
+
+#endif  /* !defined(_PR_PTHREADS) */
+
+#if !defined(PTHREADS_USER)
+#define _MD_EARLY_INIT                  _MD_EarlyInit
+#define _MD_FINAL_INIT                  _PR_UnixInit
+#endif
+
+#if defined(HPUX_LW_TIMER)
+extern void _PR_HPUX_LW_IntervalInit(void);
+extern PRIntervalTime _PR_HPUX_LW_GetInterval(void);
+#define _MD_INTERVAL_INIT                 _PR_HPUX_LW_IntervalInit
+#define _MD_GET_INTERVAL                  _PR_HPUX_LW_GetInterval
+#define _MD_INTERVAL_PER_SEC()            1000
+#else
+#define _MD_INTERVAL_USE_GTOD
+#endif
+
+/*
+ * We wrapped the select() call.  _MD_SELECT refers to the built-in,
+ * unwrapped version.
+ */
+#define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
+
+#include <poll.h>
+#define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout)
+
+#ifdef HPUX11
+extern void _MD_hpux_map_sendfile_error(int err);
+#endif /* HPUX11 */
+
+#endif /* nspr_xhppa_defs_h___ */
diff --git a/nsprpub/pr/include/md/_hpux32.cfg b/nsprpub/pr/include/md/_hpux32.cfg
new file mode 100644
index 0000000000..08950cbf13
--- /dev/null
+++ b/nsprpub/pr/include/md/_hpux32.cfg
@@ -0,0 +1,112 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef HPUX
+#define HPUX
+#endif
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+
+#define PR_AF_INET6 22  /* same as AF_INET6 */
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BYTES_PER_WORD_LOG2 2
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+
+#ifndef HAVE_LONG_LONG
+#define	HAVE_LONG_LONG
+#endif
+#define	HAVE_ALIGNED_DOUBLES
+#define	HAVE_ALIGNED_LONGLONGS
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_hpux64.cfg b/nsprpub/pr/include/md/_hpux64.cfg
new file mode 100644
index 0000000000..028a034f68
--- /dev/null
+++ b/nsprpub/pr/include/md/_hpux64.cfg
@@ -0,0 +1,113 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef HPUX
+#define HPUX
+#endif
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+#define IS_64
+
+#define PR_AF_INET6 22  /* same as AF_INET6 */
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BYTES_PER_WORD_LOG2 3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+
+#ifndef HAVE_LONG_LONG
+#define	HAVE_LONG_LONG
+#endif
+#define	HAVE_ALIGNED_DOUBLES
+#define	HAVE_ALIGNED_LONGLONGS
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_linux.cfg b/nsprpub/pr/include/md/_linux.cfg
new file mode 100644
index 0000000000..23b160fde2
--- /dev/null
+++ b/nsprpub/pr/include/md/_linux.cfg
@@ -0,0 +1,1319 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * This file is used by not only Linux but also other glibc systems
+ * such as GNU/Hurd and GNU/k*BSD.
+ */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#if !defined(LINUX) && defined(__linux__)
+#define LINUX
+#endif
+
+#ifdef __FreeBSD_kernel__
+#define PR_AF_INET6 28  /* same as AF_INET6 */
+#elif defined(__GNU__)
+#define PR_AF_INET6 26  /* same as AF_INET6 */
+#else
+#define PR_AF_INET6 10  /* same as AF_INET6 */
+#endif
+
+#ifdef __powerpc64__
+
+#ifdef __LITTLE_ENDIAN__
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#else
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN    1
+#endif
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2   3
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__powerpc__)
+
+#ifdef __LITTLE_ENDIAN__
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#else
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN    1
+#endif
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__alpha)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2  3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#elif defined(__ia64__)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2  3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#elif defined(__x86_64__)
+
+#ifdef __ILP32__
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#else
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2  3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#endif
+
+#elif defined(__mc68000__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     2
+#define PR_ALIGN_OF_LONG    2
+#define PR_ALIGN_OF_INT64   2
+#define PR_ALIGN_OF_FLOAT   2
+#define PR_ALIGN_OF_DOUBLE  2
+#define PR_ALIGN_OF_POINTER 2
+#define PR_ALIGN_OF_WORD    2
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__sparc__) && defined (__arch64__)
+
+#undef	IS_LITTLE_ENDIAN
+#define	IS_BIG_ENDIAN 1
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2   3
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__sparc__)
+
+#undef	IS_LITTLE_ENDIAN
+#define	IS_BIG_ENDIAN 1
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__i386__)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__mips__)
+
+/* For _ABI64 */
+#include <sgidefs.h>
+
+#ifdef __MIPSEB__
+#define IS_BIG_ENDIAN 1
+#undef  IS_LITTLE_ENDIAN
+#elif defined(__MIPSEL__)
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#else
+#error "Unknown MIPS endianness."
+#endif
+
+#if _MIPS_SIM == _ABI64
+
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2   3
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#else /* _ABI64 */
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#endif /* _ABI64 */
+
+#elif defined(__arm__)
+
+#ifdef __ARMEB__
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+#elif defined(__ARMEL__)
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#else
+#error "Unknown ARM endianness."
+#endif
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__aarch64__)
+
+#ifdef __AARCH64EB__
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+#elif defined(__AARCH64EL__)
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#else
+#error "Unknown Aarch64 endianness."
+#endif
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2  3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#elif defined(__hppa__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN    1
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__s390x__)
+
+#define IS_BIG_ENDIAN 1
+#undef  IS_LITTLE_ENDIAN
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2   3
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__s390__)
+
+#define IS_BIG_ENDIAN 1
+#undef  IS_LITTLE_ENDIAN
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__sh__)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__avr32__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__m32r__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__or1k__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__riscv) && (__riscv_xlen == 32)
+
+#undef  IS_BIG_ENDIAN
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2  2
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#elif defined(__riscv) && (__riscv_xlen == 64)
+
+#undef  IS_BIG_ENDIAN
+#define IS_LITTLE_ENDIAN 1
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2  3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#elif defined(__arc__)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__nios2__) || defined(__microblaze__) || defined(__nds32__) || \
+      defined(__xtensa__)
+
+#if defined(__microblaze__) && defined(__BIG_ENDIAN__)
+#define IS_BIG_ENDIAN 1
+#undef  IS_LITTLE_ENDIAN
+#else
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#endif
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#elif defined(__e2k__)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  4
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   32
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  5
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2  3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#else
+
+#error "Unknown CPU architecture"
+
+#endif
+
+#ifndef HAVE_LONG_LONG
+#define	HAVE_LONG_LONG
+#endif
+#if PR_ALIGN_OF_DOUBLE == 8
+#define HAVE_ALIGNED_DOUBLES
+#endif
+#if PR_ALIGN_OF_INT64 == 8
+#define HAVE_ALIGNED_LONGLONGS
+#endif
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_linux.h b/nsprpub/pr/include/md/_linux.h
new file mode 100644
index 0000000000..a26291a806
--- /dev/null
+++ b/nsprpub/pr/include/md/_linux.h
@@ -0,0 +1,710 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * This file is used by not only Linux but also other glibc systems
+ * such as GNU/Hurd and GNU/k*BSD.
+ */
+
+#ifndef nspr_linux_defs_h___
+#define nspr_linux_defs_h___
+
+#include "prthread.h"
+
+/*
+ * Internal configuration macros
+ */
+
+#define PR_LINKER_ARCH  "linux"
+#define _PR_SI_SYSNAME  "LINUX"
+#ifdef __powerpc64__
+#define _PR_SI_ARCHITECTURE "ppc64"
+#elif defined(__powerpc__)
+#define _PR_SI_ARCHITECTURE "ppc"
+#elif defined(__alpha)
+#define _PR_SI_ARCHITECTURE "alpha"
+#elif defined(__ia64__)
+#define _PR_SI_ARCHITECTURE "ia64"
+#elif defined(__x86_64__)
+#define _PR_SI_ARCHITECTURE "x86-64"
+#elif defined(__mc68000__)
+#define _PR_SI_ARCHITECTURE "m68k"
+#elif defined(__sparc__) && defined(__arch64__)
+#define _PR_SI_ARCHITECTURE "sparc64"
+#elif defined(__sparc__)
+#define _PR_SI_ARCHITECTURE "sparc"
+#elif defined(__i386__)
+#define _PR_SI_ARCHITECTURE "x86"
+#elif defined(__mips__)
+#define _PR_SI_ARCHITECTURE "mips"
+#elif defined(__arm__)
+#define _PR_SI_ARCHITECTURE "arm"
+#elif defined(__aarch64__)
+#define _PR_SI_ARCHITECTURE "aarch64"
+#elif defined(__hppa__)
+#define _PR_SI_ARCHITECTURE "hppa"
+#elif defined(__s390x__)
+#define _PR_SI_ARCHITECTURE "s390x"
+#elif defined(__s390__)
+#define _PR_SI_ARCHITECTURE "s390"
+#elif defined(__sh__)
+#define _PR_SI_ARCHITECTURE "sh"
+#elif defined(__avr32__)
+#define _PR_SI_ARCHITECTURE "avr32"
+#elif defined(__m32r__)
+#define _PR_SI_ARCHITECTURE "m32r"
+#elif defined(__or1k__)
+#define _PR_SI_ARCHITECTURE "or1k"
+#elif defined(__riscv) && (__riscv_xlen == 32)
+#define _PR_SI_ARCHITECTURE "riscv32"
+#elif defined(__riscv) && (__riscv_xlen == 64)
+#define _PR_SI_ARCHITECTURE "riscv64"
+#elif defined(__e2k__)
+#define _PR_SI_ARCHITECTURE "e2k"
+#elif defined(__arc__)
+#define _PR_SI_ARCHITECTURE "arc"
+#elif defined(__nios2__)
+#define _PR_SI_ARCHITECTURE "nios2"
+#elif defined(__microblaze__)
+#define _PR_SI_ARCHITECTURE "microblaze"
+#elif defined(__nds32__)
+#define _PR_SI_ARCHITECTURE "nds32"
+#elif defined(__xtensa__)
+#define _PR_SI_ARCHITECTURE "xtensa"
+#else
+#error "Unknown CPU architecture"
+#endif
+#define PR_DLL_SUFFIX       ".so"
+
+#define _PR_VMBASE              0x30000000
+#define _PR_STACK_VMBASE    0x50000000
+#define _MD_DEFAULT_STACK_SIZE  65536L
+#define _MD_MMAP_FLAGS          MAP_PRIVATE
+
+#if defined(__aarch64__) || defined(__mips__)
+#define _MD_MINIMUM_STACK_SIZE  0x20000
+#endif
+
+#undef  HAVE_STACK_GROWING_UP
+
+/*
+ * Elf linux supports dl* functions
+ */
+#define HAVE_DLL
+#define USE_DLFCN
+#if defined(ANDROID)
+#define NO_DLOPEN_NULL
+#endif
+
+#if defined(__FreeBSD_kernel__) || defined(__GNU__)
+#define _PR_HAVE_SOCKADDR_LEN
+#endif
+
+#if defined(__i386__)
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+extern PRInt32 _PR_x86_AtomicIncrement(PRInt32 *val);
+#define _MD_ATOMIC_INCREMENT          _PR_x86_AtomicIncrement
+extern PRInt32 _PR_x86_AtomicDecrement(PRInt32 *val);
+#define _MD_ATOMIC_DECREMENT          _PR_x86_AtomicDecrement
+extern PRInt32 _PR_x86_AtomicAdd(PRInt32 *ptr, PRInt32 val);
+#define _MD_ATOMIC_ADD                _PR_x86_AtomicAdd
+extern PRInt32 _PR_x86_AtomicSet(PRInt32 *val, PRInt32 newval);
+#define _MD_ATOMIC_SET                _PR_x86_AtomicSet
+#endif
+
+#if defined(__ia64__)
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+extern PRInt32 _PR_ia64_AtomicIncrement(PRInt32 *val);
+#define _MD_ATOMIC_INCREMENT          _PR_ia64_AtomicIncrement
+extern PRInt32 _PR_ia64_AtomicDecrement(PRInt32 *val);
+#define _MD_ATOMIC_DECREMENT          _PR_ia64_AtomicDecrement
+extern PRInt32 _PR_ia64_AtomicAdd(PRInt32 *ptr, PRInt32 val);
+#define _MD_ATOMIC_ADD                _PR_ia64_AtomicAdd
+extern PRInt32 _PR_ia64_AtomicSet(PRInt32 *val, PRInt32 newval);
+#define _MD_ATOMIC_SET                _PR_ia64_AtomicSet
+#endif
+
+#if defined(__x86_64__)
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+extern PRInt32 _PR_x86_64_AtomicIncrement(PRInt32 *val);
+#define _MD_ATOMIC_INCREMENT          _PR_x86_64_AtomicIncrement
+extern PRInt32 _PR_x86_64_AtomicDecrement(PRInt32 *val);
+#define _MD_ATOMIC_DECREMENT          _PR_x86_64_AtomicDecrement
+extern PRInt32 _PR_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val);
+#define _MD_ATOMIC_ADD                _PR_x86_64_AtomicAdd
+extern PRInt32 _PR_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval);
+#define _MD_ATOMIC_SET                _PR_x86_64_AtomicSet
+#endif
+
+#if defined(__or1k__)
+#if defined(__GNUC__)
+/* Use GCC built-in functions */
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+#define _MD_ATOMIC_INCREMENT(ptr) __sync_add_and_fetch(ptr, 1)
+#define _MD_ATOMIC_DECREMENT(ptr) __sync_sub_and_fetch(ptr, 1)
+#define _MD_ATOMIC_ADD(ptr, i) __sync_add_and_fetch(ptr, i)
+#define _MD_ATOMIC_SET(ptr, nv) __sync_lock_test_and_set(ptr, nv)
+#endif
+#endif
+
+#if defined(__powerpc__) && !defined(__powerpc64__)
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+extern PRInt32 _PR_ppc_AtomicIncrement(PRInt32 *val);
+#define _MD_ATOMIC_INCREMENT          _PR_ppc_AtomicIncrement
+extern PRInt32 _PR_ppc_AtomicDecrement(PRInt32 *val);
+#define _MD_ATOMIC_DECREMENT          _PR_ppc_AtomicDecrement
+extern PRInt32 _PR_ppc_AtomicAdd(PRInt32 *ptr, PRInt32 val);
+#define _MD_ATOMIC_ADD                _PR_ppc_AtomicAdd
+extern PRInt32 _PR_ppc_AtomicSet(PRInt32 *val, PRInt32 newval);
+#define _MD_ATOMIC_SET                _PR_ppc_AtomicSet
+#endif
+
+#if defined(__powerpc64__)
+#if (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)
+/* Use GCC built-in functions */
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+#define _MD_ATOMIC_INCREMENT(ptr) __sync_add_and_fetch(ptr, 1)
+#define _MD_ATOMIC_DECREMENT(ptr) __sync_sub_and_fetch(ptr, 1)
+#define _MD_ATOMIC_ADD(ptr, i) __sync_add_and_fetch(ptr, i)
+#define _MD_ATOMIC_SET(ptr, nv) __sync_lock_test_and_set(ptr, nv)
+#endif
+#endif
+
+#if defined(__mips__) && defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
+/* Use GCC built-in functions */
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+#define _MD_ATOMIC_INCREMENT(ptr) __sync_add_and_fetch(ptr, 1)
+#define _MD_ATOMIC_DECREMENT(ptr) __sync_sub_and_fetch(ptr, 1)
+#define _MD_ATOMIC_ADD(ptr, i) __sync_add_and_fetch(ptr, i)
+#define _MD_ATOMIC_SET(ptr, nv) __sync_lock_test_and_set(ptr, nv)
+#endif
+
+#if defined(__alpha)
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+#define _MD_ATOMIC_ADD(ptr, i) ({               \
+    PRInt32 __atomic_tmp, __atomic_ret;   \
+    __asm__ __volatile__(                       \
+    "1: ldl_l   %[ret], %[val]          \n"     \
+    "   addl    %[ret], %[inc], %[tmp]  \n"     \
+    "   addl    %[ret], %[inc], %[ret]  \n"     \
+    "   stl_c   %[tmp], %[val]          \n"     \
+    "   beq     %[tmp], 2f              \n"     \
+    ".subsection 2                      \n"     \
+    "2: br      1b                      \n"     \
+    ".previous"                                 \
+    : [ret] "=&r" (__atomic_ret),               \
+      [tmp] "=&r" (__atomic_tmp),               \
+      [val] "=m" (*ptr)                         \
+    : [inc] "Ir" (i), "m" (*ptr));              \
+    __atomic_ret;                               \
+})
+#define _MD_ATOMIC_INCREMENT(ptr) _MD_ATOMIC_ADD(ptr, 1)
+#define _MD_ATOMIC_DECREMENT(ptr) ({            \
+    PRInt32 __atomic_tmp, __atomic_ret;   \
+    __asm__ __volatile__(                       \
+    "1: ldl_l   %[ret], %[val]          \n"     \
+    "   subl    %[ret], 1, %[tmp]       \n"     \
+    "   subl    %[ret], 1, %[ret]       \n"     \
+    "   stl_c   %[tmp], %[val]          \n"     \
+    "   beq     %[tmp], 2f              \n"     \
+    ".subsection 2                      \n"     \
+    "2: br      1b                      \n"     \
+    ".previous"                                 \
+    : [ret] "=&r" (__atomic_ret),               \
+      [tmp] "=&r" (__atomic_tmp),               \
+      [val] "=m" (*ptr)                         \
+    : "m" (*ptr));                              \
+    __atomic_ret;                               \
+})
+#define _MD_ATOMIC_SET(ptr, n) ({               \
+    PRInt32 __atomic_tmp, __atomic_ret;   \
+    __asm__ __volatile__(                       \
+    "1: ldl_l   %[ret], %[val]          \n"     \
+    "   mov     %[newval], %[tmp]       \n"     \
+    "   stl_c   %[tmp], %[val]          \n"     \
+    "   beq     %[tmp], 2f              \n"     \
+    ".subsection 2                      \n"     \
+    "2: br      1b                      \n"     \
+    ".previous"                                 \
+    : [ret] "=&r" (__atomic_ret),               \
+      [tmp] "=&r"(__atomic_tmp),                \
+      [val] "=m" (*ptr)                         \
+    : [newval] "Ir" (n), "m" (*ptr));           \
+    __atomic_ret;                               \
+})
+#endif
+
+#if defined(__arm__) || defined(__aarch64__)
+#if defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
+/* Use GCC built-in functions */
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+
+#define _MD_ATOMIC_INCREMENT(ptr) __sync_add_and_fetch(ptr, 1)
+#define _MD_ATOMIC_DECREMENT(ptr) __sync_sub_and_fetch(ptr, 1)
+#define _MD_ATOMIC_SET(ptr, nv) __sync_lock_test_and_set(ptr, nv)
+#define _MD_ATOMIC_ADD(ptr, i) __sync_add_and_fetch(ptr, i)
+
+#elif defined(_PR_ARM_KUSER)
+#define _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+
+/*
+ * The kernel provides this helper function at a fixed address with a fixed
+ * ABI signature, directly callable from user space.
+ *
+ * Definition:
+ * Atomically store newval in *ptr if *ptr is equal to oldval.
+ * Return zero if *ptr was changed or non-zero if no exchange happened.
+ */
+typedef int (__kernel_cmpxchg_t)(int oldval, int newval, volatile int *ptr);
+#define __kernel_cmpxchg (*(__kernel_cmpxchg_t *)0xffff0fc0)
+
+#define _MD_ATOMIC_INCREMENT(ptr) _MD_ATOMIC_ADD(ptr, 1)
+#define _MD_ATOMIC_DECREMENT(ptr) _MD_ATOMIC_ADD(ptr, -1)
+
+static inline PRInt32 _MD_ATOMIC_ADD(PRInt32 *ptr, PRInt32 n)
+{
+    PRInt32 ov, nv;
+    volatile PRInt32 *vp = ptr;
+
+    do {
+        ov = *vp;
+        nv = ov + n;
+    } while (__kernel_cmpxchg(ov, nv, vp));
+
+    return nv;
+}
+
+static inline PRInt32 _MD_ATOMIC_SET(PRInt32 *ptr, PRInt32 nv)
+{
+    PRInt32 ov;
+    volatile PRInt32 *vp = ptr;
+
+    do {
+        ov = *vp;
+    } while (__kernel_cmpxchg(ov, nv, vp));
+
+    return ov;
+}
+#endif
+#endif /* __arm__ */
+
+#define USE_SETJMP
+#if (defined(__GLIBC__) && __GLIBC__ >= 2) || defined(ANDROID)
+#define _PR_POLL_AVAILABLE
+#endif
+#undef _PR_USE_POLL
+#define _PR_STAT_HAS_ONLY_ST_ATIME
+#if defined(__alpha) || defined(__ia64__)
+#define _PR_HAVE_LARGE_OFF_T
+#elif (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) \
+    || defined(ANDROID)
+#define _PR_HAVE_OFF64_T
+#else
+#define _PR_NO_LARGE_FILES
+#endif
+#if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) \
+    || defined(ANDROID)
+#define _PR_INET6
+#define _PR_HAVE_INET_NTOP
+#define _PR_HAVE_GETHOSTBYNAME2
+#define _PR_HAVE_GETADDRINFO
+#define _PR_INET6_PROBE
+#endif
+#ifndef ANDROID
+#define _PR_HAVE_SYSV_SEMAPHORES
+#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
+#endif
+/* Android has gethostbyname_r but not gethostbyaddr_r or gethostbyname2_r. */
+#if (__GLIBC__ >= 2) && defined(_PR_PTHREADS)
+#define _PR_HAVE_GETHOST_R
+#define _PR_HAVE_GETHOST_R_INT
+#endif
+
+#ifdef _PR_PTHREADS
+
+extern void _MD_CleanupBeforeExit(void);
+#define _MD_CLEANUP_BEFORE_EXIT _MD_CleanupBeforeExit
+
+#else  /* ! _PR_PTHREADS */
+
+#include <setjmp.h>
+
+#define PR_CONTEXT_TYPE sigjmp_buf
+
+#define CONTEXT(_th) ((_th)->md.context)
+
+#ifdef __powerpc__
+/*
+ * PowerPC based MkLinux
+ *
+ * On the PowerPC, the new style jmp_buf isn't used until glibc
+ * 2.1.
+ */
+#if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1)
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_GPR1]
+#else
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__misc[0]
+#endif /* glibc 2.1 or later */
+#define _MD_SET_FP(_t, val)
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) ((void *) 0)
+/* aix = 64, macos = 70 */
+#define PR_NUM_GCREGS  64
+
+#elif defined(__alpha)
+/* Alpha based Linux */
+
+#if defined(__GLIBC__) && __GLIBC__ >= 2
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
+#define _MD_SET_FP(_t, val)
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) ((void *) 0)
+#define _MD_SP_TYPE long int
+#else
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
+#define _MD_SET_FP(_t, val)
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) ((void *) 0)
+#define _MD_SP_TYPE __ptr_t
+#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
+
+/* XXX not sure if this is correct, or maybe it should be 17? */
+#define PR_NUM_GCREGS 9
+
+#elif defined(__ia64__)
+
+#define _MD_GET_SP(_t)      ((long *)((_t)->md.context[0].__jmpbuf)[0])
+#define _MD_SET_FP(_t, val)
+#define _MD_GET_SP_PTR(_t)  &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t)  ((void *) 0)
+#define _MD_SP_TYPE         long int
+
+#define PR_NUM_GCREGS       _JBLEN
+
+#elif defined(__mc68000__)
+/* m68k based Linux */
+
+/*
+ * On the m68k, glibc still uses the old style sigjmp_buf, even
+ * in glibc 2.0.7.
+ */
+#if defined(__GLIBC__) && __GLIBC__ >= 2
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
+#define _MD_SET_FP(_t, val)
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) ((void *) 0)
+#define _MD_SP_TYPE int
+#else
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
+#define _MD_SET_FP(_t, val)
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) ((void *) 0)
+#define _MD_SP_TYPE __ptr_t
+#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
+
+/* XXX not sure if this is correct, or maybe it should be 17? */
+#define PR_NUM_GCREGS 9
+
+#elif defined(__sparc__)
+/* Sparc */
+#if defined(__GLIBC__) && __GLIBC__ >= 2
+/*
+ * You need glibc2-2.0.7-25 or later. The libraries that came with
+ * Red Hat 5.1 are not new enough, but they are in 5.2.
+ */
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
+#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[JB_FP] = val)
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[JB_FP])
+#define _MD_SP_TYPE int
+#else
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__fp
+#define _MD_SET_FP(_t, val)
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) ((void *) 0)
+#define _MD_SP_TYPE __ptr_t
+#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
+
+#elif defined(__i386__)
+/* Intel based Linux */
+#if defined(__GLIBC__) && __GLIBC__ >= 2
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP]
+#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[JB_BP] = val)
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[JB_BP])
+#define _MD_SP_TYPE int
+#else
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
+#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[0].__bp = val)
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) &((_t)->md.context[0].__jmpbuf[0].__bp)
+#define _MD_SP_TYPE __ptr_t
+#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
+#define PR_NUM_GCREGS   6
+
+#elif defined(__mips__)
+/* Linux/MIPS */
+#if defined(__GLIBC__) && __GLIBC__ >= 2
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp
+#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[0].__fp = (val))
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[0].__fp)
+#define _MD_SP_TYPE __ptr_t
+#else
+#error "Linux/MIPS pre-glibc2 not supported yet"
+#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
+
+#elif defined(__arm__)
+/* ARM/Linux */
+#if defined(__GLIBC__) && __GLIBC__ >= 2
+#ifdef __ARM_EABI__
+/* EABI */
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[8]
+#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[7] = (val))
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[7])
+#define _MD_SP_TYPE __ptr_t
+#else /* __ARM_EABI__ */
+/* old ABI */
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[20]
+#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[19] = (val))
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[19])
+#define _MD_SP_TYPE __ptr_t
+#endif /* __ARM_EABI__ */
+#else
+#error "ARM/Linux pre-glibc2 not supported yet"
+#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
+
+#elif defined(__sh__)
+/* SH/Linux */
+#if defined(__GLIBC__) && __GLIBC__ >= 2
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[7]
+#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[6] = (val))
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[6])
+#define _MD_SP_TYPE __ptr_t
+#else
+#error "SH/Linux pre-glibc2 not supported yet"
+#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
+
+#elif defined(__m32r__)
+/* Linux/M32R */
+#if defined(__GLIBC__) && __GLIBC__ >= 2
+#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__regs[JB_SP]
+#define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[0].__regs[JB_FP] = (val))
+#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
+#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[0].__regs[JB_FP])
+#define _MD_SP_TYPE __ptr_t
+#else
+#error "Linux/M32R pre-glibc2 not supported yet"
+#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
+
+#else
+
+#error "Unknown CPU architecture"
+
+#endif /*__powerpc__*/
+
+/*
+** Initialize a thread context to run "_main()" when started
+*/
+#ifdef __powerpc__
+
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
+{  \
+    *status = PR_TRUE;  \
+    if (sigsetjmp(CONTEXT(_thread), 1)) {  \
+        _main();  \
+    }  \
+    _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 128); \
+    _thread->md.sp = _MD_GET_SP_PTR(_thread); \
+    _thread->md.fp = _MD_GET_FP_PTR(_thread); \
+    _MD_SET_FP(_thread, 0); \
+}
+
+#elif defined(__mips__)
+
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
+{  \
+    *status = PR_TRUE;  \
+    (void) sigsetjmp(CONTEXT(_thread), 1);  \
+    _thread->md.context[0].__jmpbuf[0].__pc = (__ptr_t) _main;  \
+    _MD_GET_SP(_thread) = (_MD_SP_TYPE) ((_sp) - 64); \
+    _thread->md.sp = _MD_GET_SP_PTR(_thread); \
+    _thread->md.fp = _MD_GET_FP_PTR(_thread); \
+    _MD_SET_FP(_thread, 0); \
+}
+
+#else
+
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
+{  \
+    *status = PR_TRUE;  \
+    if (sigsetjmp(CONTEXT(_thread), 1)) {  \
+        _main();  \
+    }  \
+    _MD_GET_SP(_thread) = (_MD_SP_TYPE) ((_sp) - 64); \
+    _thread->md.sp = _MD_GET_SP_PTR(_thread); \
+    _thread->md.fp = _MD_GET_FP_PTR(_thread); \
+    _MD_SET_FP(_thread, 0); \
+}
+
+#endif /*__powerpc__*/
+
+#define _MD_SWITCH_CONTEXT(_thread)  \
+    if (!sigsetjmp(CONTEXT(_thread), 1)) {  \
+    (_thread)->md.errcode = errno;  \
+    _PR_Schedule();  \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread) \
+{   \
+    errno = (_thread)->md.errcode;  \
+    _MD_SET_CURRENT_THREAD(_thread);  \
+    siglongjmp(CONTEXT(_thread), 1);  \
+}
+
+/* Machine-dependent (MD) data structures */
+
+struct _MDThread {
+    PR_CONTEXT_TYPE context;
+    void *sp;
+    void *fp;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#include <sys/time.h>  /* for FD_SETSIZE */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+            fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif  /* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock) PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+extern PRStatus _MD_InitializeThread(PRThread *thread);
+
+#define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD                 _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
+#define _MD_RESUME_THREAD(thread)       _MD_resume_thread
+#define _MD_CLEAN_THREAD(_thread)
+
+extern PRStatus _MD_CREATE_THREAD(
+    PRThread *thread,
+    void (*start) (void *),
+    PRThreadPriority priority,
+    PRThreadScope scope,
+    PRThreadState state,
+    PRUint32 stackSize);
+extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri);
+extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout);
+extern PRStatus _MD_WAKEUP_WAITER(PRThread *);
+extern void _MD_YIELD(void);
+
+#endif /* ! _PR_PTHREADS */
+
+extern void _MD_EarlyInit(void);
+
+#define _MD_EARLY_INIT                  _MD_EarlyInit
+#define _MD_FINAL_INIT                  _PR_UnixInit
+#define _PR_HAVE_CLOCK_MONOTONIC
+
+/*
+ * We wrapped the select() call.  _MD_SELECT refers to the built-in,
+ * unwrapped version.
+ */
+#define _MD_SELECT __select
+
+#ifdef _PR_POLL_AVAILABLE
+#include <sys/poll.h>
+extern int __syscall_poll(struct pollfd *ufds, unsigned long int nfds,
+                          int timeout);
+#define _MD_POLL __syscall_poll
+#endif
+
+/* For writev() */
+#include <sys/uio.h>
+
+extern void _MD_linux_map_sendfile_error(int err);
+
+#endif /* nspr_linux_defs_h___ */
diff --git a/nsprpub/pr/include/md/_netbsd.cfg b/nsprpub/pr/include/md/_netbsd.cfg
new file mode 100644
index 0000000000..1326556e0a
--- /dev/null
+++ b/nsprpub/pr/include/md/_netbsd.cfg
@@ -0,0 +1,351 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef NETBSD
+#define NETBSD
+#endif
+
+#define PR_AF_INET6 24  /* same as AF_INET6 */
+
+#ifndef HAVE_LONG_LONG
+#define HAVE_LONG_LONG
+#endif
+
+#if defined(__i386__) || defined(__arm32__) || defined(__ARMEL__) || \
+	defined(__MIPSEL__)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#undef	HAVE_ALIGNED_DOUBLES
+#undef	HAVE_ALIGNED_LONGLONGS
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+
+#elif defined(__sparc_v9__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+#define HAVE_ALIGNED_DOUBLES
+#define HAVE_ALIGNED_LONGLONGS
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   3
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8 
+#define PR_ALIGN_OF_FLOAT   4 
+#define PR_ALIGN_OF_DOUBLE  8 
+#define PR_ALIGN_OF_POINTER 8 
+
+#elif defined(__sparc__) || defined(__MIPSEB__) || defined(__ARMEB__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+#define HAVE_ALIGNED_DOUBLES
+#define HAVE_ALIGNED_LONGLONGS
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+
+#elif defined(__alpha__)
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define	HAVE_ALIGNED_DOUBLES
+#define	HAVE_ALIGNED_LONGLONGS
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+
+#define PR_BYTES_PER_WORD_LOG2  3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#elif defined(__amd64__)
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define HAVE_ALIGNED_DOUBLES
+#define HAVE_ALIGNED_LONGLONGS
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2  3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#elif defined(__powerpc__) || defined(__m68k__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN    1
+#undef	HAVE_ALIGNED_DOUBLES
+#undef	HAVE_ALIGNED_LONGLONGS
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#else
+
+#error Must define constants for type sizes here.
+
+#endif
+
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_netbsd.h b/nsprpub/pr/include/md/_netbsd.h
new file mode 100644
index 0000000000..1ec0fe6ec8
--- /dev/null
+++ b/nsprpub/pr/include/md/_netbsd.h
@@ -0,0 +1,230 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_netbsd_defs_h___
+#define nspr_netbsd_defs_h___
+
+#include <sys/syscall.h>
+#include <sys/param.h>  /* for __NetBSD_Version__ */
+
+#define PR_LINKER_ARCH  "netbsd"
+#define _PR_SI_SYSNAME  "NetBSD"
+#if defined(__i386__)
+#define _PR_SI_ARCHITECTURE "x86"
+#elif defined(__alpha__)
+#define _PR_SI_ARCHITECTURE "alpha"
+#elif defined(__amd64__)
+#define _PR_SI_ARCHITECTURE "amd64"
+#elif defined(__m68k__)
+#define _PR_SI_ARCHITECTURE "m68k"
+#elif defined(__powerpc__)
+#define _PR_SI_ARCHITECTURE "powerpc"
+#elif defined(__sparc_v9__)
+#define _PR_SI_ARCHITECTURE "sparc64"
+#elif defined(__sparc__)
+#define _PR_SI_ARCHITECTURE "sparc"
+#elif defined(__mips__)
+#define _PR_SI_ARCHITECTURE "mips"
+#elif defined(__arm32__) || defined(__arm__) || defined(__armel__) \
+    || defined(__armeb__)
+#define _PR_SI_ARCHITECTURE "arm"
+#endif
+
+#if defined(__ELF__)
+#define PR_DLL_SUFFIX       ".so"
+#else
+#define PR_DLL_SUFFIX       ".so.1.0"
+#endif
+
+#define _PR_VMBASE              0x30000000
+#define _PR_STACK_VMBASE    0x50000000
+#define _MD_DEFAULT_STACK_SIZE  65536L
+#define _MD_MMAP_FLAGS          MAP_PRIVATE
+
+#undef  HAVE_STACK_GROWING_UP
+#define HAVE_DLL
+#define USE_DLFCN
+#define _PR_HAVE_SOCKADDR_LEN
+#define _PR_NO_LARGE_FILES
+#define _PR_STAT_HAS_ST_ATIMESPEC
+#define _PR_POLL_AVAILABLE
+#define _PR_USE_POLL
+#define _PR_HAVE_SYSV_SEMAPHORES
+#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
+
+#if __NetBSD_Version__ >= 105000000
+#define _PR_INET6
+#define _PR_HAVE_INET_NTOP
+#define _PR_HAVE_GETHOSTBYNAME2
+#define _PR_HAVE_GETADDRINFO
+#define _PR_INET6_PROBE
+#endif
+
+#define USE_SETJMP
+
+#ifndef _PR_PTHREADS
+#include <setjmp.h>
+
+#define PR_CONTEXT_TYPE sigjmp_buf
+
+#define CONTEXT(_th) ((_th)->md.context)
+
+#if defined(__i386__) || defined(__sparc__) || defined(__m68k__) || defined(__powerpc__)
+#define JB_SP_INDEX 2
+#elif defined(__mips__)
+#define JB_SP_INDEX 4
+#elif defined(__alpha__)
+#define JB_SP_INDEX 34
+#elif defined(__arm32__)
+/*
+ * On the arm32, the jmpbuf regs underwent a name change after NetBSD 1.3.
+ */
+#ifdef JMPBUF_REG_R13
+#define JB_SP_INDEX JMPBUF_REG_R13
+#else
+#define JB_SP_INDEX _JB_REG_R13
+#endif
+#else
+#error "Need to define SP index in jmp_buf here"
+#endif
+#define _MD_GET_SP(_th)    (_th)->md.context[JB_SP_INDEX]
+
+#define PR_NUM_GCREGS   _JBLEN
+
+/*
+** Initialize a thread context to run "_main()" when started
+*/
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
+{  \
+    *status = PR_TRUE;  \
+    if (sigsetjmp(CONTEXT(_thread), 1)) {  \
+        _main();  \
+    }  \
+    _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
+}
+
+#define _MD_SWITCH_CONTEXT(_thread)  \
+    if (!sigsetjmp(CONTEXT(_thread), 1)) {  \
+        (_thread)->md.errcode = errno;  \
+        _PR_Schedule();  \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread) \
+{   \
+    errno = (_thread)->md.errcode;  \
+    _MD_SET_CURRENT_THREAD(_thread);  \
+    siglongjmp(CONTEXT(_thread), 1);  \
+}
+
+/* Machine-dependent (MD) data structures */
+
+struct _MDThread {
+    PR_CONTEXT_TYPE context;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+            fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif  /* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock) PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+#define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD                 _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
+#define _MD_RESUME_THREAD(thread)       _MD_resume_thread
+#define _MD_CLEAN_THREAD(_thread)
+
+#endif /* ! _PR_PTHREADS */
+
+extern void _MD_EarlyInit(void);
+
+#define _MD_EARLY_INIT                  _MD_EarlyInit
+#define _MD_FINAL_INIT          _PR_UnixInit
+#define _PR_HAVE_CLOCK_MONOTONIC
+
+/*
+ * We wrapped the select() call.  _MD_SELECT refers to the built-in,
+ * unwrapped version.
+ */
+#define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
+#if defined(_PR_POLL_AVAILABLE)
+#include <poll.h>
+#define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout)
+#endif
+
+#if NetBSD1_3 == 1L
+typedef unsigned int nfds_t;
+#endif
+
+#endif /* nspr_netbsd_defs_h___ */
diff --git a/nsprpub/pr/include/md/_nspr_pthread.h b/nsprpub/pr/include/md/_nspr_pthread.h
new file mode 100644
index 0000000000..01796e7721
--- /dev/null
+++ b/nsprpub/pr/include/md/_nspr_pthread.h
@@ -0,0 +1,251 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_pthread_defs_h___
+#define nspr_pthread_defs_h___
+
+#include <pthread.h>
+#include "prthread.h"
+
+#if defined(PTHREADS_USER)
+/*
+** Thread Local Storage
+*/
+extern pthread_key_t current_thread_key;
+extern pthread_key_t current_cpu_key;
+extern pthread_key_t last_thread_key;
+extern pthread_key_t intsoff_key;
+
+#define _MD_CURRENT_THREAD()            \
+            ((struct PRThread *) pthread_getspecific(current_thread_key))
+#define _MD_CURRENT_CPU()               \
+            ((struct _PRCPU *) pthread_getspecific(current_cpu_key))
+#define _MD_LAST_THREAD()               \
+            ((struct PRThread *) pthread_getspecific(last_thread_key))
+
+#define _MD_SET_CURRENT_THREAD(newval)          \
+    pthread_setspecific(current_thread_key, (void *)newval)
+
+#define _MD_SET_CURRENT_CPU(newval)             \
+    pthread_setspecific(current_cpu_key, (void *)newval)
+
+#define _MD_SET_LAST_THREAD(newval)             \
+    pthread_setspecific(last_thread_key, (void *)newval)
+
+#define _MD_SET_INTSOFF(_val)
+#define _MD_GET_INTSOFF()   1
+
+/*
+** Initialize the thread context preparing it to execute _main.
+*/
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)           \
+    PR_BEGIN_MACRO                                              \
+        *status = PR_TRUE;                                      \
+        if (SAVE_CONTEXT(_thread)) {                            \
+            (*_main)();                                         \
+        }                                                       \
+        _MD_SET_THR_SP(_thread, _sp);                           \
+        _thread->no_sched = 0;                                  \
+    PR_END_MACRO
+
+#define _MD_SWITCH_CONTEXT(_thread)                                 \
+    PR_BEGIN_MACRO                                                  \
+    PR_ASSERT(_thread->no_sched);                                   \
+    if (!SAVE_CONTEXT(_thread)) {                                   \
+        (_thread)->md.errcode = errno;                              \
+        _MD_SET_LAST_THREAD(_thread);                               \
+        _PR_Schedule();                                             \
+    } else {                                                        \
+         (_MD_LAST_THREAD())->no_sched = 0;                         \
+    }                                                               \
+    PR_END_MACRO
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread)                                \
+    PR_BEGIN_MACRO                                                  \
+    errno = (_thread)->md.errcode;                                  \
+    _MD_SET_CURRENT_THREAD(_thread);                                \
+    _thread->no_sched = 1;                                          \
+    GOTO_CONTEXT(_thread);                                          \
+    PR_END_MACRO
+
+
+/* Machine-dependent (MD) data structures */
+
+struct _MDThread {
+    jmp_buf         jb;
+    int             id;
+    int             errcode;
+    pthread_t       pthread;
+    pthread_mutex_t pthread_mutex;
+    pthread_cond_t  pthread_cond;
+    int             wait;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    pthread_mutex_t mutex;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    pthread_mutex_t mutex;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+            fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif  /* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    jmp_buf             jb;
+    pthread_t           pthread;
+    struct _MDCPU_Unix  md_unix;
+};
+
+/*
+#define _MD_NEW_LOCK(lock) PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+*/
+
+extern pthread_mutex_t _pr_heapLock;
+
+#define _PR_LOCK(lock) pthread_mutex_lock(lock)
+
+#define _PR_UNLOCK(lock) pthread_mutex_unlock(lock)
+
+
+#define _PR_LOCK_HEAP() {                                   \
+                if (_pr_primordialCPU) {                    \
+                    _PR_LOCK(_pr_heapLock);                 \
+                }
+
+#define _PR_UNLOCK_HEAP()   if (_pr_primordialCPU)  {       \
+                    _PR_UNLOCK(_pr_heapLock);               \
+                }                                           \
+              }
+
+NSPR_API(PRStatus) _MD_NEW_LOCK(struct _MDLock *md);
+NSPR_API(void) _MD_FREE_LOCK(struct _MDLock *lockp);
+
+#define _MD_LOCK(_lockp) _PR_LOCK(&(_lockp)->mutex)
+#define _MD_UNLOCK(_lockp) _PR_UNLOCK(&(_lockp)->mutex)
+
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+#define _MD_CHECK_FOR_EXIT()
+
+NSPR_API(PRStatus) _MD_InitThread(struct PRThread *thread);
+#define _MD_INIT_THREAD _MD_InitThread
+#define _MD_INIT_ATTACHED_THREAD _MD_InitThread
+
+NSPR_API(void) _MD_ExitThread(struct PRThread *thread);
+#define _MD_EXIT_THREAD _MD_ExitThread
+
+NSPR_API(void) _MD_SuspendThread(struct PRThread *thread);
+#define _MD_SUSPEND_THREAD _MD_SuspendThread
+
+NSPR_API(void) _MD_ResumeThread(struct PRThread *thread);
+#define _MD_RESUME_THREAD _MD_ResumeThread
+
+NSPR_API(void) _MD_SuspendCPU(struct _PRCPU *thread);
+#define _MD_SUSPEND_CPU _MD_SuspendCPU
+
+NSPR_API(void) _MD_ResumeCPU(struct _PRCPU *thread);
+#define _MD_RESUME_CPU _MD_ResumeCPU
+
+#define _MD_BEGIN_SUSPEND_ALL()
+#define _MD_END_SUSPEND_ALL()
+#define _MD_BEGIN_RESUME_ALL()
+#define _MD_END_RESUME_ALL()
+
+NSPR_API(void) _MD_EarlyInit(void);
+#define _MD_EARLY_INIT _MD_EarlyInit
+
+#define _MD_FINAL_INIT _PR_UnixInit
+
+NSPR_API(void) _MD_InitLocks(void);
+#define _MD_INIT_LOCKS _MD_InitLocks
+
+NSPR_API(void) _MD_CleanThread(struct PRThread *thread);
+#define _MD_CLEAN_THREAD _MD_CleanThread
+
+NSPR_API(PRStatus) _MD_CreateThread(
+    struct PRThread *thread,
+    void (*start) (void *),
+    PRThreadPriority priority,
+    PRThreadScope scope,
+    PRThreadState state,
+    PRUint32 stackSize);
+#define _MD_CREATE_THREAD _MD_CreateThread
+
+extern void _MD_CleanupBeforeExit(void);
+#define _MD_CLEANUP_BEFORE_EXIT _MD_CleanupBeforeExit
+
+NSPR_API(void) _MD_InitRunningCPU(struct _PRCPU *cpu);
+#define    _MD_INIT_RUNNING_CPU _MD_InitRunningCPU
+
+/* The _PR_MD_WAIT_LOCK and _PR_MD_WAKEUP_WAITER functions put to sleep and
+ * awaken a thread which is waiting on a lock or cvar.
+ */
+NSPR_API(PRStatus) _MD_wait(struct PRThread *, PRIntervalTime timeout);
+#define _MD_WAIT _MD_wait
+
+NSPR_API(PRStatus) _MD_WakeupWaiter(struct PRThread *);
+#define _MD_WAKEUP_WAITER _MD_WakeupWaiter
+
+NSPR_API(void) _MD_SetPriority(struct _MDThread *thread,
+                               PRThreadPriority newPri);
+#define _MD_SET_PRIORITY _MD_SetPriority
+
+#endif /* PTHREADS_USER */
+
+#endif /* nspr_pthread_defs_h___ */
diff --git a/nsprpub/pr/include/md/_nto.cfg b/nsprpub/pr/include/md/_nto.cfg
new file mode 100644
index 0000000000..b76a56057e
--- /dev/null
+++ b/nsprpub/pr/include/md/_nto.cfg
@@ -0,0 +1,120 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef NTO
+#define NTO
+#endif
+
+#define PR_AF_INET6 24  /* same as AF_INET6 */
+
+#ifdef __i386__
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+
+#define PR_BYTES_PER_BYTE   1L
+#define PR_BYTES_PER_SHORT  2L
+#define PR_BYTES_PER_INT    4L
+#define PR_BYTES_PER_INT64  8L
+#define PR_BYTES_PER_LONG   4L
+#define PR_BYTES_PER_FLOAT  4L
+#define PR_BYTES_PER_DOUBLE 8L
+#define PR_BYTES_PER_WORD   4L
+#define PR_BYTES_PER_DWORD  8L
+
+#define PR_BITS_PER_BYTE    8L
+#define PR_BITS_PER_SHORT   16L
+#define PR_BITS_PER_INT     32L
+#define PR_BITS_PER_INT64   64L
+#define PR_BITS_PER_LONG    32L
+#define PR_BITS_PER_FLOAT   32L
+#define PR_BITS_PER_DOUBLE  64L
+#define PR_BITS_PER_WORD    32L
+
+#define PR_BITS_PER_BYTE_LOG2   3L
+#define PR_BITS_PER_SHORT_LOG2  4L
+#define PR_BITS_PER_INT_LOG2    5L
+#define PR_BITS_PER_INT64_LOG2  6L
+#define PR_BITS_PER_LONG_LOG2   5L
+#define PR_BITS_PER_FLOAT_LOG2  5L
+#define PR_BITS_PER_DOUBLE_LOG2 6L
+#define PR_BITS_PER_WORD_LOG2   5L
+
+#define PR_ALIGN_OF_SHORT   2L
+#define PR_ALIGN_OF_INT     4L
+#define PR_ALIGN_OF_LONG    4L
+#define PR_ALIGN_OF_INT64   4L
+#define PR_ALIGN_OF_FLOAT   4L
+#define PR_ALIGN_OF_DOUBLE  4L
+#define PR_ALIGN_OF_POINTER 4L
+#define PR_ALIGN_OF_WORD    4L
+
+#define PR_BYTES_PER_WORD_LOG2   2L
+#define PR_BYTES_PER_DWORD_LOG2  3L
+#define PR_WORDS_PER_DWORD_LOG2  1L
+
+#else
+
+#error Undefined CPU Architecture
+
+#endif
+
+#ifndef HAVE_LONG_LONG
+#define HAVE_LONG_LONG
+#endif
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_nto.h b/nsprpub/pr/include/md/_nto.h
new file mode 100644
index 0000000000..1094dd183f
--- /dev/null
+++ b/nsprpub/pr/include/md/_nto.h
@@ -0,0 +1,188 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_nto_defs_h___
+#define nspr_nto_defs_h___
+
+/*
+** Internal configuration macros
+*/
+#define PR_LINKER_ARCH      "nto"
+#define _PR_SI_SYSNAME      "NTO"
+#define _PR_SI_ARCHITECTURE "x86"
+#define PR_DLL_SUFFIX       ".so"
+
+#define _PR_VMBASE      0x30000000
+#define _PR_STACK_VMBASE    0x50000000
+#define _MD_DEFAULT_STACK_SIZE  65536L
+#define _MD_MINIMUM_STACK_SIZE  131072L
+#define _MD_MMAP_FLAGS      MAP_PRIVATE
+
+#ifndef HAVE_WEAK_IO_SYMBOLS
+#define HAVE_WEAK_IO_SYMBOLS
+#endif
+
+#undef  _PR_POLL_AVAILABLE
+#undef  _PR_USE_POLL
+#define _PR_HAVE_SOCKADDR_LEN
+#undef  HAVE_BSD_FLOCK
+#define HAVE_FCNTL_FILE_LOCKING
+#define _PR_NO_LARGE_FILES
+#define _PR_STAT_HAS_ONLY_ST_ATIME
+#define PR_HAVE_POSIX_NAMED_SHARED_MEMORY
+#define _PR_HAVE_POSIX_SEMAPHORES
+
+#undef FD_SETSIZE
+#define FD_SETSIZE  4096
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/select.h>
+
+#undef  HAVE_STACK_GROWING_UP
+#define HAVE_DLL
+#define USE_DLFCN
+#define NEED_STRFTIME_LOCK
+#define NEED_TIME_R
+#define _PR_NEED_STRCASECMP
+
+#ifndef HAVE_STRERROR
+#define HAVE_STRERROR
+#endif
+
+#define USE_SETJMP
+
+#include <setjmp.h>
+
+#define _SETJMP         setjmp
+#define _LONGJMP        longjmp
+#define _PR_CONTEXT_TYPE    jmp_buf
+#define _PR_NUM_GCREGS      _JBLEN
+#define _MD_GET_SP(_t)      (_t)->md.context[7]
+
+#define CONTEXT(_th)        ((_th)->md.context)
+
+
+/*
+** Initialize the thread context preparing it to execute _main.
+*/
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)   \
+{                           \
+    *status = PR_TRUE;                  \
+    if(_SETJMP(CONTEXT(_thread))) (*_main)();       \
+    _MD_GET_SP(_thread) = (int) ((_sp) - 128);      \
+}
+
+#define _MD_SWITCH_CONTEXT(_thread) \
+    if (!_SETJMP(CONTEXT(_thread))) {   \
+    (_thread)->md.errcode = errno;  \
+    _PR_Schedule();         \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread)    \
+{                   \
+    errno = (_thread)->md.errcode;  \
+    _MD_SET_CURRENT_THREAD(_thread);    \
+    _LONGJMP(CONTEXT(_thread), 1);  \
+}
+
+/*
+** Machine-dependent (MD) data structures.
+*/
+struct _MDThread {
+    _PR_CONTEXT_TYPE context;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+** md-specific cpu structure field
+*/
+#define _PR_MD_MAX_OSFD     FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD], fd_write_cnt[_PR_MD_MAX_OSFD], fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu)   PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock)      PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+#define _MD_INTERVAL_USE_GTOD
+#define _MD_EARLY_INIT          _MD_EarlyInit
+#define _MD_FINAL_INIT          _PR_UnixInit
+#define _MD_INIT_RUNNING_CPU(cpu)   _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD         _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)
+#define _MD_RESUME_THREAD(thread)
+#define _MD_CLEAN_THREAD(_thread)
+
+/*
+** We wrapped the select() call.  _MD_SELECT refers to the built-in,
+** unwrapped version.
+*/
+#define _MD_SELECT      select
+
+#define SA_RESTART 0
+
+#endif /* nspr_nto_defs_h___ */
diff --git a/nsprpub/pr/include/md/_openbsd.cfg b/nsprpub/pr/include/md/_openbsd.cfg
new file mode 100644
index 0000000000..b68d6e9cd6
--- /dev/null
+++ b/nsprpub/pr/include/md/_openbsd.cfg
@@ -0,0 +1,353 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef OPENBSD
+#define OPENBSD
+#endif
+
+#define PR_AF_INET6 24  /* same as AF_INET6 */
+
+#ifndef HAVE_LONG_LONG
+#define HAVE_LONG_LONG
+#endif
+
+#if defined(__i386__) || defined(__arm__)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#undef	HAVE_ALIGNED_DOUBLES
+#undef	HAVE_ALIGNED_LONGLONGS
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+
+#elif defined(__amd64__)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+#define PR_ALIGN_OF_WORD    8
+
+#define PR_BYTES_PER_WORD_LOG2  3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#define HAVE_ALIGNED_DOUBLES
+#define HAVE_ALIGNED_LONGLONGS
+
+#elif defined(__sparc_v9__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+#define HAVE_ALIGNED_DOUBLES
+#define HAVE_ALIGNED_LONGLONGS
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+
+#define PR_BYTES_PER_WORD_LOG2  3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#elif defined(__sparc__)
+
+#undef IS_LITTLE_ENDIAN
+#define  IS_BIG_ENDIAN 1
+#define  HAVE_ALIGNED_DOUBLES
+#define  HAVE_ALIGNED_LONGLONGS
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+
+#elif defined(__alpha__)
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define	HAVE_ALIGNED_DOUBLES
+#define	HAVE_ALIGNED_LONGLONGS
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+
+#define PR_BYTES_PER_WORD_LOG2  3
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#elif defined(__powerpc__) || defined(__m68k__)
+
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN    1
+#undef	HAVE_ALIGNED_DOUBLES
+#undef	HAVE_ALIGNED_LONGLONGS
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#else
+
+#error Must define constants for type sizes here.
+
+#endif
+
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_openbsd.h b/nsprpub/pr/include/md/_openbsd.h
new file mode 100644
index 0000000000..43fed38a4d
--- /dev/null
+++ b/nsprpub/pr/include/md/_openbsd.h
@@ -0,0 +1,209 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_openbsd_defs_h___
+#define nspr_openbsd_defs_h___
+
+#include <sys/syscall.h>
+
+#define PR_LINKER_ARCH  "openbsd"
+#define _PR_SI_SYSNAME  "OPENBSD"
+#if defined(__i386__)
+#define _PR_SI_ARCHITECTURE "x86"
+#elif defined(__alpha__)
+#define _PR_SI_ARCHITECTURE "alpha"
+#elif defined(__amd64__)
+#define _PR_SI_ARCHITECTURE "amd64"
+#elif defined(__m68k__)
+#define _PR_SI_ARCHITECTURE "m68k"
+#elif defined(__powerpc__)
+#define _PR_SI_ARCHITECTURE "powerpc"
+#elif defined(__sparc__)
+#define _PR_SI_ARCHITECTURE "sparc"
+#elif defined(__arm__)
+#define _PR_SI_ARCHITECTURE "arm"
+#endif
+
+#define PR_DLL_SUFFIX       ".so"
+
+#define _PR_VMBASE              0x30000000
+#define _PR_STACK_VMBASE    0x50000000
+#define _MD_DEFAULT_STACK_SIZE  65536L
+#define _MD_MMAP_FLAGS          MAP_PRIVATE
+
+#undef  HAVE_STACK_GROWING_UP
+#define HAVE_DLL
+#define USE_DLFCN
+#define _PR_HAVE_SOCKADDR_LEN
+#define _PR_HAVE_LARGE_OFF_T
+#define _PR_STAT_HAS_ST_ATIMESPEC
+#define _PR_POLL_AVAILABLE
+#define _PR_USE_POLL
+#define _PR_HAVE_SYSV_SEMAPHORES
+#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
+
+#define _PR_INET6
+#define _PR_HAVE_INET_NTOP
+#define _PR_HAVE_GETHOSTBYNAME2
+#define _PR_HAVE_GETADDRINFO
+#define _PR_INET6_PROBE
+
+#define USE_SETJMP
+
+#ifndef _PR_PTHREADS
+#include <setjmp.h>
+
+#define PR_CONTEXT_TYPE sigjmp_buf
+
+#define CONTEXT(_th) ((_th)->md.context)
+
+#if defined(__i386__) || defined(__sparc__) || defined(__m68k__)
+#define JB_SP_INDEX 2
+#elif defined(__powerpc__)
+#define JB_SP_INDEX 1
+#elif defined(__alpha__)
+#define JB_SP_INDEX 34
+#elif defined(__amd64__)
+#define JB_SP_INDEX 6
+#elif defined(__arm__)
+#define JB_SP_INDEX 23
+#else
+#error "Need to define SP index in jmp_buf here"
+#endif
+#define _MD_GET_SP(_th)    (_th)->md.context[JB_SP_INDEX]
+
+#define PR_NUM_GCREGS   _JBLEN
+
+/*
+** Initialize a thread context to run "_main()" when started
+*/
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
+{  \
+    *status = PR_TRUE;  \
+    if (sigsetjmp(CONTEXT(_thread), 1)) {  \
+        _main();  \
+    }  \
+    _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
+}
+
+#define _MD_SWITCH_CONTEXT(_thread)  \
+    if (!sigsetjmp(CONTEXT(_thread), 1)) {  \
+        (_thread)->md.errcode = errno;  \
+        _PR_Schedule();  \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread) \
+{   \
+    errno = (_thread)->md.errcode;  \
+    _MD_SET_CURRENT_THREAD(_thread);  \
+    siglongjmp(CONTEXT(_thread), 1);  \
+}
+
+/* Machine-dependent (MD) data structures */
+
+struct _MDThread {
+    PR_CONTEXT_TYPE context;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+            fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif  /* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock) PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+#define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD                 _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
+#define _MD_RESUME_THREAD(thread)       _MD_resume_thread
+#define _MD_CLEAN_THREAD(_thread)
+
+#endif /* ! _PR_PTHREADS */
+
+#define _MD_EARLY_INIT                  _MD_EarlyInit
+#define _MD_FINAL_INIT          _PR_UnixInit
+#define _PR_HAVE_CLOCK_MONOTONIC
+
+/*
+ * We wrapped the select() call.  _MD_SELECT refers to the built-in,
+ * unwrapped version.
+ */
+#define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
+#include <poll.h>
+#define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout)
+
+#if OpenBSD1_3 == 1L
+typedef unsigned int nfds_t;
+#endif
+
+#endif /* nspr_openbsd_defs_h___ */
diff --git a/nsprpub/pr/include/md/_os2.cfg b/nsprpub/pr/include/md/_os2.cfg
new file mode 100644
index 0000000000..67c2dedf54
--- /dev/null
+++ b/nsprpub/pr/include/md/_os2.cfg
@@ -0,0 +1,121 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_PC
+#define XP_PC
+#endif
+
+#ifndef XP_OS2
+#define XP_OS2
+#endif
+
+#ifndef OS2
+#define OS2
+#endif
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#ifdef NO_LONG_LONG
+#undef HAVE_LONG_LONG
+#else
+#ifndef HAVE_LONG_LONG
+#define HAVE_LONG_LONG 1
+#endif
+#endif
+
+#define PR_AF_INET6 24  /* same as AF_INET6 */
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD       4
+#define PR_BYTES_PER_DWORD	8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_WORD	32
+#define PR_BITS_PER_DWORD	64
+#define PR_BITS_PER_DOUBLE  64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_WORD_LOG2	5
+#define PR_BITS_PER_DWORD_LOG2	6
+#define PR_BITS_PER_DOUBLE_LOG2 6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_WORD	4
+#define PR_ALIGN_OF_DWORD	8
+#define PR_ALIGN_OF_POINTER 4
+
+#define PR_BYTES_PER_WORD_LOG2	2
+#define PR_BYTES_PER_DWORD_LOG2	2
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE      PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT     PR_BYTES_PER_SHORT
+#define BYTES_PER_INT       PR_BYTES_PER_INT
+#define BYTES_PER_INT64     PR_BYTES_PER_INT64
+#define BYTES_PER_LONG      PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT     PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE    PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD      PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD     PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE       PR_BITS_PER_BYTE
+#define BITS_PER_SHORT      PR_BITS_PER_SHORT
+#define BITS_PER_INT        PR_BITS_PER_INT
+#define BITS_PER_INT64      PR_BITS_PER_INT64
+#define BITS_PER_LONG       PR_BITS_PER_LONG
+#define BITS_PER_FLOAT      PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE     PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD       PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2  PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2 PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2   PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2 PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2  PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2 PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2    PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2  PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT      PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT        PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG       PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64      PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT      PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE     PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER    PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD       PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2		PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2    PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2    PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_os2.h b/nsprpub/pr/include/md/_os2.h
new file mode 100644
index 0000000000..2c3165a146
--- /dev/null
+++ b/nsprpub/pr/include/md/_os2.h
@@ -0,0 +1,504 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_os2_defs_h___
+#define nspr_os2_defs_h___
+
+#ifndef NO_LONG_LONG
+#define INCL_LONGLONG
+#endif
+#define INCL_DOS
+#define INCL_DOSPROCESS
+#define INCL_DOSERRORS
+#define INCL_WIN
+#define INCL_WPS
+#include <os2.h>
+#include <sys/select.h>
+
+#include "prio.h"
+
+#include <errno.h>
+
+/*
+ * Internal configuration macros
+ */
+
+#define PR_LINKER_ARCH      "os2"
+#define _PR_SI_SYSNAME        "OS2"
+#define _PR_SI_ARCHITECTURE   "x86"    /* XXXMB hardcode for now */
+
+#define HAVE_DLL
+#define _PR_GLOBAL_THREADS_ONLY
+#undef  HAVE_THREAD_AFFINITY
+#define _PR_HAVE_THREADSAFE_GETHOST
+#define _PR_HAVE_ATOMIC_OPS
+#define HAVE_NETINET_TCP_H
+
+#define HANDLE unsigned long
+#define HINSTANCE HMODULE
+
+/* --- Common User-Thread/Native-Thread Definitions --------------------- */
+
+/* --- Globals --- */
+extern struct PRLock                      *_pr_schedLock;
+
+/* --- Typedefs --- */
+typedef void (*FiberFunc)(void *);
+
+#define PR_NUM_GCREGS           8
+typedef PRInt32                 PR_CONTEXT_TYPE[PR_NUM_GCREGS];
+#define GC_VMBASE               0x40000000
+#define GC_VMLIMIT              0x00FFFFFF
+typedef int (*FARPROC)();
+
+#define _MD_MAGIC_THREAD    0x22222222
+#define _MD_MAGIC_THREADSTACK   0x33333333
+#define _MD_MAGIC_SEGMENT   0x44444444
+#define _MD_MAGIC_DIR       0x55555555
+#define _MD_MAGIC_CV        0x66666666
+
+struct _MDSemaphore {
+    HEV sem;
+};
+
+struct _MDCPU {
+    int              unused;
+};
+
+struct _MDThread {
+    HEV              blocked_sema;      /* Threads block on this when waiting
+                                         * for IO or CondVar.
+                                         */
+    PRBool           inCVWaitQueue;     /* PR_TRUE if the thread is in the
+                                         * wait queue of some cond var.
+                                         * PR_FALSE otherwise.  */
+    TID              handle;            /* OS/2 thread handle */
+    void            *sp;                /* only valid when suspended */
+    PRUint32         magic;             /* for debugging */
+    PR_CONTEXT_TYPE  gcContext;         /* Thread context for GC */
+    struct PRThread *prev, *next;       /* used by the cvar wait queue to
+                                         * chain the PRThread structures
+                                         * together */
+};
+
+struct _MDThreadStack {
+    PRUint32           magic;          /* for debugging */
+};
+
+struct _MDSegment {
+    PRUint32           magic;          /* for debugging */
+};
+
+#undef PROFILE_LOCKS
+
+struct _MDDir {
+    HDIR           d_hdl;
+    union {
+        FILEFINDBUF3  small;
+        FILEFINDBUF3L large;
+    } d_entry;
+    PRBool           firstEntry;     /* Is this the entry returned
+                                      * by FindFirstFile()? */
+    PRUint32         magic;          /* for debugging */
+};
+
+struct _MDCVar {
+    PRUint32 magic;
+    struct PRThread *waitHead, *waitTail;  /* the wait queue: a doubly-
+                                            * linked list of threads
+                                            * waiting on this condition
+                                            * variable */
+    PRIntn nwait;                          /* number of threads in the
+                                            * wait queue */
+};
+
+#define _MD_CV_NOTIFIED_LENGTH 6
+typedef struct _MDNotified _MDNotified;
+struct _MDNotified {
+    PRIntn length;                     /* # of used entries in this
+                                        * structure */
+    struct {
+        struct _MDCVar *cv;            /* the condition variable notified */
+        PRIntn times;                  /* and the number of times notified */
+        struct PRThread *notifyHead;   /* list of threads to wake up */
+    } cv[_MD_CV_NOTIFIED_LENGTH];
+    _MDNotified *link;                 /* link to another of these, or NULL */
+};
+
+struct _MDLock {
+    HMTX mutex;                        /* this is recursive on OS/2 */
+
+    /*
+     * When notifying cvars, there is no point in actually
+     * waking up the threads waiting on the cvars until we've
+     * released the lock.  So, we temporarily record the cvars.
+     * When doing an unlock, we'll then wake up the waiting threads.
+     */
+    struct _MDNotified notified;     /* array of conditions notified */
+#ifdef PROFILE_LOCKS
+    PRInt32 hitcount;
+    PRInt32 misscount;
+#endif
+};
+
+struct _MDFileDesc {
+    PRInt32 osfd;    /* The osfd can come from one of three spaces:
+                      * - For stdin, stdout, and stderr, we are using
+                      *   the libc file handle (0, 1, 2), which is an int.
+                      * - For files and pipes, we are using OS/2 handles,
+                      *   which is a void*.
+                      * - For sockets, we are using int
+                      */
+};
+
+struct _MDProcess {
+    PID pid;
+};
+
+/* --- Misc stuff --- */
+#define _MD_GET_SP(thread)            (thread)->md.gcContext[6]
+
+/* --- IO stuff --- */
+
+#define _MD_OPEN                      (_PR_MD_OPEN)
+#define _MD_OPEN_FILE                 (_PR_MD_OPEN)
+#define _MD_READ                      (_PR_MD_READ)
+#define _MD_WRITE                     (_PR_MD_WRITE)
+#define _MD_WRITEV                    (_PR_MD_WRITEV)
+#define _MD_LSEEK                     (_PR_MD_LSEEK)
+#define _MD_LSEEK64                   (_PR_MD_LSEEK64)
+extern PRInt32 _MD_CloseFile(PRInt32 osfd);
+#define _MD_CLOSE_FILE                _MD_CloseFile
+#define _MD_GETFILEINFO               (_PR_MD_GETFILEINFO)
+#define _MD_GETFILEINFO64             (_PR_MD_GETFILEINFO64)
+#define _MD_GETOPENFILEINFO           (_PR_MD_GETOPENFILEINFO)
+#define _MD_GETOPENFILEINFO64         (_PR_MD_GETOPENFILEINFO64)
+#define _MD_STAT                      (_PR_MD_STAT)
+#define _MD_RENAME                    (_PR_MD_RENAME)
+#define _MD_ACCESS                    (_PR_MD_ACCESS)
+#define _MD_DELETE                    (_PR_MD_DELETE)
+#define _MD_MKDIR                     (_PR_MD_MKDIR)
+#define _MD_MAKE_DIR                  (_PR_MD_MKDIR)
+#define _MD_RMDIR                     (_PR_MD_RMDIR)
+#define _MD_LOCKFILE                  (_PR_MD_LOCKFILE)
+#define _MD_TLOCKFILE                 (_PR_MD_TLOCKFILE)
+#define _MD_UNLOCKFILE                (_PR_MD_UNLOCKFILE)
+
+/* --- Socket IO stuff --- */
+
+/* The ones that don't map directly may need to be re-visited... */
+#define _MD_EACCES                EACCES
+#define _MD_EADDRINUSE            EADDRINUSE
+#define _MD_EADDRNOTAVAIL         EADDRNOTAVAIL
+#define _MD_EAFNOSUPPORT          EAFNOSUPPORT
+#define _MD_EAGAIN                EWOULDBLOCK
+#define _MD_EALREADY              EALREADY
+#define _MD_EBADF                 EBADF
+#define _MD_ECONNREFUSED          ECONNREFUSED
+#define _MD_ECONNRESET            ECONNRESET
+#define _MD_EFAULT                SOCEFAULT
+#define _MD_EINPROGRESS           EINPROGRESS
+#define _MD_EINTR                 EINTR
+#define _MD_EINVAL                EINVAL
+#define _MD_EISCONN               EISCONN
+#define _MD_ENETUNREACH           ENETUNREACH
+#define _MD_ENOENT                ENOENT
+#define _MD_ENOTCONN              ENOTCONN
+#define _MD_ENOTSOCK              ENOTSOCK
+#define _MD_EOPNOTSUPP            EOPNOTSUPP
+#define _MD_EWOULDBLOCK           EWOULDBLOCK
+#define _MD_GET_SOCKET_ERROR()    sock_errno()
+#ifndef INADDR_LOOPBACK /* For some reason this is not defined in OS2 tcpip */
+/*  #define INADDR_LOOPBACK         INADDR_ANY */
+#endif
+
+#define _MD_INIT_FILEDESC(fd)
+extern void _MD_MakeNonblock(PRFileDesc *f);
+#define _MD_MAKE_NONBLOCK             _MD_MakeNonblock
+#define _MD_INIT_FD_INHERITABLE       (_PR_MD_INIT_FD_INHERITABLE)
+#define _MD_QUERY_FD_INHERITABLE      (_PR_MD_QUERY_FD_INHERITABLE)
+#define _MD_SHUTDOWN                  (_PR_MD_SHUTDOWN)
+#define _MD_LISTEN                    _PR_MD_LISTEN
+extern PRInt32 _MD_CloseSocket(PRInt32 osfd);
+#define _MD_CLOSE_SOCKET              _MD_CloseSocket
+#define _MD_SENDTO                    (_PR_MD_SENDTO)
+#define _MD_RECVFROM                  (_PR_MD_RECVFROM)
+#define _MD_SOCKETPAIR                (_PR_MD_SOCKETPAIR)
+#define _MD_GETSOCKNAME               (_PR_MD_GETSOCKNAME)
+#define _MD_GETPEERNAME               (_PR_MD_GETPEERNAME)
+#define _MD_GETSOCKOPT                (_PR_MD_GETSOCKOPT)
+#define _MD_SETSOCKOPT                (_PR_MD_SETSOCKOPT)
+
+#define _MD_FSYNC                     _PR_MD_FSYNC
+#define _MD_SET_FD_INHERITABLE        (_PR_MD_SET_FD_INHERITABLE)
+
+#ifdef _PR_HAVE_ATOMIC_OPS
+#define _MD_INIT_ATOMIC()
+#define _MD_ATOMIC_INCREMENT          _PR_MD_ATOMIC_INCREMENT
+#define _MD_ATOMIC_ADD                _PR_MD_ATOMIC_ADD
+#define _MD_ATOMIC_DECREMENT          _PR_MD_ATOMIC_DECREMENT
+#define _MD_ATOMIC_SET                _PR_MD_ATOMIC_SET
+#endif
+
+#define _MD_INIT_IO                   (_PR_MD_INIT_IO)
+#define _MD_PR_POLL                   (_PR_MD_PR_POLL)
+
+#define _MD_SOCKET                    (_PR_MD_SOCKET)
+extern PRInt32 _MD_SocketAvailable(PRFileDesc *fd);
+#define _MD_SOCKETAVAILABLE           _MD_SocketAvailable
+#define _MD_PIPEAVAILABLE             _MD_SocketAvailable
+#define _MD_CONNECT                   (_PR_MD_CONNECT)
+extern PRInt32 _MD_Accept(PRFileDesc *fd, PRNetAddr *raddr, PRUint32 *rlen,
+                          PRIntervalTime timeout);
+#define _MD_ACCEPT                    _MD_Accept
+#define _MD_BIND                      (_PR_MD_BIND)
+#define _MD_RECV                      (_PR_MD_RECV)
+#define _MD_SEND                      (_PR_MD_SEND)
+
+/* --- Scheduler stuff --- */
+/* #define _MD_PAUSE_CPU                 _PR_MD_PAUSE_CPU */
+#define _MD_PAUSE_CPU
+
+/* --- DIR stuff --- */
+#define PR_DIRECTORY_SEPARATOR        '\\'
+#define PR_DIRECTORY_SEPARATOR_STR    "\\"
+#define PR_PATH_SEPARATOR       ';'
+#define PR_PATH_SEPARATOR_STR       ";"
+#define _MD_ERRNO()                   errno
+#define _MD_OPEN_DIR                  (_PR_MD_OPEN_DIR)
+#define _MD_CLOSE_DIR                 (_PR_MD_CLOSE_DIR)
+#define _MD_READ_DIR                  (_PR_MD_READ_DIR)
+
+/* --- Segment stuff --- */
+#define _MD_INIT_SEGS()
+#define _MD_ALLOC_SEGMENT(seg, size, vaddr)   0
+#define _MD_FREE_SEGMENT(seg)
+
+/* --- Environment Stuff --- */
+#define _MD_GET_ENV                 (_PR_MD_GET_ENV)
+#define _MD_PUT_ENV                 (_PR_MD_PUT_ENV)
+
+/* --- Threading Stuff --- */
+#define _MD_DEFAULT_STACK_SIZE      65536L
+#define _MD_INIT_THREAD             (_PR_MD_INIT_THREAD)
+#define _MD_INIT_ATTACHED_THREAD    (_PR_MD_INIT_THREAD)
+#define _MD_CREATE_THREAD           (_PR_MD_CREATE_THREAD)
+#define _MD_YIELD                   (_PR_MD_YIELD)
+#define _MD_SET_PRIORITY            (_PR_MD_SET_PRIORITY)
+#define _MD_CLEAN_THREAD            (_PR_MD_CLEAN_THREAD)
+#define _MD_SETTHREADAFFINITYMASK   (_PR_MD_SETTHREADAFFINITYMASK)
+#define _MD_GETTHREADAFFINITYMASK   (_PR_MD_GETTHREADAFFINITYMASK)
+#define _MD_EXIT_THREAD             (_PR_MD_EXIT_THREAD)
+#define _MD_SUSPEND_THREAD          (_PR_MD_SUSPEND_THREAD)
+#define _MD_RESUME_THREAD           (_PR_MD_RESUME_THREAD)
+#define _MD_SUSPEND_CPU             (_PR_MD_SUSPEND_CPU)
+#define _MD_RESUME_CPU              (_PR_MD_RESUME_CPU)
+#define _MD_WAKEUP_CPUS             (_PR_MD_WAKEUP_CPUS)
+#define _MD_BEGIN_SUSPEND_ALL()
+#define _MD_BEGIN_RESUME_ALL()
+#define _MD_END_SUSPEND_ALL()
+#define _MD_END_RESUME_ALL()
+
+/* --- Lock stuff --- */
+#define _PR_LOCK                      _MD_LOCK
+#define _PR_UNLOCK                    _MD_UNLOCK
+
+#define _MD_NEW_LOCK                  (_PR_MD_NEW_LOCK)
+#define _MD_FREE_LOCK(lock)           (DosCloseMutexSem((lock)->mutex))
+#define _MD_LOCK(lock)                (DosRequestMutexSem((lock)->mutex, SEM_INDEFINITE_WAIT))
+#define _MD_TEST_AND_LOCK(lock)       (DosRequestMutexSem((lock)->mutex, SEM_INDEFINITE_WAIT),0)
+#define _MD_UNLOCK                    (_PR_MD_UNLOCK)
+
+/* --- lock and cv waiting --- */
+#define _MD_WAIT                      (_PR_MD_WAIT)
+#define _MD_WAKEUP_WAITER             (_PR_MD_WAKEUP_WAITER)
+
+/* --- CVar ------------------- */
+#define _MD_WAIT_CV                   (_PR_MD_WAIT_CV)
+#define _MD_NEW_CV                    (_PR_MD_NEW_CV)
+#define _MD_FREE_CV                   (_PR_MD_FREE_CV)
+#define _MD_NOTIFY_CV                 (_PR_MD_NOTIFY_CV )
+#define _MD_NOTIFYALL_CV              (_PR_MD_NOTIFYALL_CV)
+
+/* XXXMB- the IOQ stuff is certainly not working correctly yet. */
+/* extern  struct _MDLock              _pr_ioq_lock; */
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+
+/* --- Initialization stuff --- */
+#define _MD_START_INTERRUPTS()
+#define _MD_STOP_INTERRUPTS()
+#define _MD_DISABLE_CLOCK_INTERRUPTS()
+#define _MD_ENABLE_CLOCK_INTERRUPTS()
+#define _MD_BLOCK_CLOCK_INTERRUPTS()
+#define _MD_UNBLOCK_CLOCK_INTERRUPTS()
+#define _MD_EARLY_INIT                (_PR_MD_EARLY_INIT)
+#define _MD_FINAL_INIT()
+#define _MD_EARLY_CLEANUP()
+#define _MD_INIT_CPUS()
+#define _MD_INIT_RUNNING_CPU(cpu)
+
+struct PRProcess;
+struct PRProcessAttr;
+
+#define _MD_CREATE_PROCESS _PR_CreateOS2Process
+extern struct PRProcess * _PR_CreateOS2Process(
+    const char *path,
+    char *const *argv,
+    char *const *envp,
+    const struct PRProcessAttr *attr
+);
+
+#define _MD_DETACH_PROCESS _PR_DetachOS2Process
+extern PRStatus _PR_DetachOS2Process(struct PRProcess *process);
+
+/* --- Wait for a child process to terminate --- */
+#define _MD_WAIT_PROCESS _PR_WaitOS2Process
+extern PRStatus _PR_WaitOS2Process(struct PRProcess *process,
+                                   PRInt32 *exitCode);
+
+#define _MD_KILL_PROCESS _PR_KillOS2Process
+extern PRStatus _PR_KillOS2Process(struct PRProcess *process);
+
+#define _MD_CLEANUP_BEFORE_EXIT()
+#define _MD_EXIT                          (_PR_MD_EXIT)
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
+    PR_BEGIN_MACRO \
+    *status = PR_TRUE; \
+    PR_END_MACRO
+#define _MD_SWITCH_CONTEXT
+#define _MD_RESTORE_CONTEXT
+
+/* --- Intervals --- */
+#define _MD_INTERVAL_INIT                 (_PR_MD_INTERVAL_INIT)
+#define _MD_GET_INTERVAL                  (_PR_MD_GET_INTERVAL)
+#define _MD_INTERVAL_PER_SEC              (_PR_MD_INTERVAL_PER_SEC)
+#define _MD_INTERVAL_PER_MILLISEC()       (_PR_MD_INTERVAL_PER_SEC() / 1000)
+#define _MD_INTERVAL_PER_MICROSEC()       (_PR_MD_INTERVAL_PER_SEC() / 1000000)
+
+/* --- Native-Thread Specific Definitions ------------------------------- */
+
+typedef struct __NSPR_TLS
+{
+    struct PRThread  *_pr_thread_last_run;
+    struct PRThread  *_pr_currentThread;
+    struct _PRCPU    *_pr_currentCPU;
+} _NSPR_TLS;
+
+extern _NSPR_TLS*  pThreadLocalStorage;
+NSPR_API(void) _PR_MD_ENSURE_TLS(void);
+
+#define _MD_GET_ATTACHED_THREAD() pThreadLocalStorage->_pr_currentThread
+extern struct PRThread * _MD_CURRENT_THREAD(void);
+#define _MD_SET_CURRENT_THREAD(_thread) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_pr_currentThread = (_thread)
+
+#define _MD_LAST_THREAD() pThreadLocalStorage->_pr_thread_last_run
+#define _MD_SET_LAST_THREAD(_thread) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_pr_thread_last_run = (_thread)
+
+#define _MD_CURRENT_CPU() pThreadLocalStorage->_pr_currentCPU
+#define _MD_SET_CURRENT_CPU(_cpu) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_pr_currentCPU = (_cpu)
+
+/* lth. #define _MD_SET_INTSOFF(_val) (_pr_ints_off = (_val)) */
+/* lth. #define _MD_GET_INTSOFF() _pr_ints_off */
+/* lth. #define _MD_INCREMENT_INTSOFF() (_pr_ints_off++) */
+/* lth. #define _MD_DECREMENT_INTSOFF() (_pr_ints_off--) */
+
+/* --- Scheduler stuff --- */
+#define LOCK_SCHEDULER()                 0
+#define UNLOCK_SCHEDULER()               0
+#define _PR_LockSched()                  0
+#define _PR_UnlockSched()                0
+
+/* --- Initialization stuff --- */
+#define _MD_INIT_LOCKS()
+
+/* --- Stack stuff --- */
+#define _MD_INIT_STACK(stack, redzone)
+#define _MD_CLEAR_STACK(stack)
+
+/* --- Memory-mapped files stuff --- */
+/* ReadOnly and WriteCopy modes are simulated on OS/2;
+ * ReadWrite mode is not supported.
+ */
+struct _MDFileMap {
+    PROffset64  maxExtent;
+};
+
+extern PRStatus _MD_CreateFileMap(struct PRFileMap *fmap, PRInt64 size);
+#define _MD_CREATE_FILE_MAP _MD_CreateFileMap
+
+extern PRInt32 _MD_GetMemMapAlignment(void);
+#define _MD_GET_MEM_MAP_ALIGNMENT _MD_GetMemMapAlignment
+
+extern void * _MD_MemMap(struct PRFileMap *fmap, PRInt64 offset,
+                         PRUint32 len);
+#define _MD_MEM_MAP _MD_MemMap
+
+extern PRStatus _MD_MemUnmap(void *addr, PRUint32 size);
+#define _MD_MEM_UNMAP _MD_MemUnmap
+
+extern PRStatus _MD_CloseFileMap(struct PRFileMap *fmap);
+#define _MD_CLOSE_FILE_MAP _MD_CloseFileMap
+
+/* Some stuff for setting up thread contexts */
+typedef ULONG DWORD, *PDWORD;
+
+/* The following definitions and two structures are new in OS/2 Warp 4.0.
+ */
+#ifndef CONTEXT_CONTROL
+#define CONTEXT_CONTROL        0x00000001
+#define CONTEXT_INTEGER        0x00000002
+#define CONTEXT_SEGMENTS       0x00000004
+#define CONTEXT_FLOATING_POINT 0x00000008
+#define CONTEXT_FULL           0x0000000F
+
+#pragma pack(2)
+typedef struct _FPREG {
+    ULONG      losig;    /*  Low 32-bits of the significand. */
+    ULONG      hisig;    /*  High 32-bits of the significand. */
+    USHORT     signexp;  /*  Sign and exponent. */
+} FPREG;
+typedef struct _CONTEXTRECORD {
+    ULONG     ContextFlags;
+    ULONG     ctx_env[7];
+    FPREG     ctx_stack[8];
+    ULONG     ctx_SegGs;     /*  GS register. */
+    ULONG     ctx_SegFs;     /*  FS register. */
+    ULONG     ctx_SegEs;     /*  ES register. */
+    ULONG     ctx_SegDs;     /*  DS register. */
+    ULONG     ctx_RegEdi;    /*  EDI register. */
+    ULONG     ctx_RegEsi;    /*  ESI register. */
+    ULONG     ctx_RegEax;    /*  EAX register. */
+    ULONG     ctx_RegEbx;    /*  EBX register. */
+    ULONG     ctx_RegEcx;    /*  ECX register. */
+    ULONG     ctx_RegEdx;    /*  EDX register. */
+    ULONG     ctx_RegEbp;    /*  EBP register. */
+    ULONG     ctx_RegEip;    /*  EIP register. */
+    ULONG     ctx_SegCs;     /*  CS register. */
+    ULONG     ctx_EFlags;    /*  EFLAGS register. */
+    ULONG     ctx_RegEsp;    /*  ESP register. */
+    ULONG     ctx_SegSs;     /*  SS register. */
+} CONTEXTRECORD, *PCONTEXTRECORD;
+#pragma pack()
+#endif
+
+extern APIRET (* APIENTRY QueryThreadContext)(TID, ULONG, PCONTEXTRECORD);
+
+/*
+#define _pr_tid            (((PTIB2)_getTIBvalue(offsetof(TIB, tib_ptib2)))->tib2_ultid)
+#define _pr_current_Thread (_system_tls[_pr_tid-1].__pr_current_thread)
+*/
+
+/* Some simple mappings of Windows API's to OS/2 API's to make our lives a
+ * little bit easier.  Only add one here if it is a DIRECT mapping.  We are
+ * not emulating anything.  Just mapping.
+ */
+#define FreeLibrary(x) DosFreeModule((HMODULE)x)
+#define OutputDebugStringA(x)
+
+extern int _MD_os2_get_nonblocking_connect_error(int osfd);
+
+#endif /* nspr_os2_defs_h___ */
diff --git a/nsprpub/pr/include/md/_os2_errors.h b/nsprpub/pr/include/md/_os2_errors.h
new file mode 100644
index 0000000000..556a9ae8d4
--- /dev/null
+++ b/nsprpub/pr/include/md/_os2_errors.h
@@ -0,0 +1,128 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_os2_errors_h___
+#define nspr_os2_errors_h___
+
+#include "md/_os2.h"
+#ifndef assert
+#include <assert.h>
+#endif
+
+NSPR_API(void) _MD_os2_map_default_error(PRInt32 err);
+#define _PR_MD_MAP_DEFAULT_ERROR    _MD_os2_map_default_error
+
+NSPR_API(void) _MD_os2_map_opendir_error(PRInt32 err);
+#define _PR_MD_MAP_OPENDIR_ERROR    _MD_os2_map_opendir_error
+
+NSPR_API(void) _MD_os2_map_closedir_error(PRInt32 err);
+#define _PR_MD_MAP_CLOSEDIR_ERROR   _MD_os2_map_closedir_error
+
+NSPR_API(void) _MD_os2_readdir_error(PRInt32 err);
+#define _PR_MD_MAP_READDIR_ERROR    _MD_os2_readdir_error
+
+NSPR_API(void) _MD_os2_map_delete_error(PRInt32 err);
+#define _PR_MD_MAP_DELETE_ERROR _MD_os2_map_delete_error
+
+NSPR_API(void) _MD_os2_map_stat_error(PRInt32 err);
+#define _PR_MD_MAP_STAT_ERROR   _MD_os2_map_stat_error
+
+NSPR_API(void) _MD_os2_map_fstat_error(PRInt32 err);
+#define _PR_MD_MAP_FSTAT_ERROR  _MD_os2_map_fstat_error
+
+NSPR_API(void) _MD_os2_map_rename_error(PRInt32 err);
+#define _PR_MD_MAP_RENAME_ERROR _MD_os2_map_rename_error
+
+NSPR_API(void) _MD_os2_map_access_error(PRInt32 err);
+#define _PR_MD_MAP_ACCESS_ERROR _MD_os2_map_access_error
+
+NSPR_API(void) _MD_os2_map_mkdir_error(PRInt32 err);
+#define _PR_MD_MAP_MKDIR_ERROR  _MD_os2_map_mkdir_error
+
+NSPR_API(void) _MD_os2_map_rmdir_error(PRInt32 err);
+#define _PR_MD_MAP_RMDIR_ERROR  _MD_os2_map_rmdir_error
+
+NSPR_API(void) _MD_os2_map_read_error(PRInt32 err);
+#define _PR_MD_MAP_READ_ERROR   _MD_os2_map_read_error
+
+NSPR_API(void) _MD_os2_map_transmitfile_error(PRInt32 err);
+#define _PR_MD_MAP_TRANSMITFILE_ERROR   _MD_os2_map_transmitfile_error
+
+NSPR_API(void) _MD_os2_map_write_error(PRInt32 err);
+#define _PR_MD_MAP_WRITE_ERROR  _MD_os2_map_write_error
+
+NSPR_API(void) _MD_os2_map_lseek_error(PRInt32 err);
+#define _PR_MD_MAP_LSEEK_ERROR  _MD_os2_map_lseek_error
+
+NSPR_API(void) _MD_os2_map_fsync_error(PRInt32 err);
+#define _PR_MD_MAP_FSYNC_ERROR  _MD_os2_map_fsync_error
+
+NSPR_API(void) _MD_os2_map_close_error(PRInt32 err);
+#define _PR_MD_MAP_CLOSE_ERROR  _MD_os2_map_close_error
+
+NSPR_API(void) _MD_os2_map_socket_error(PRInt32 err);
+#define _PR_MD_MAP_SOCKET_ERROR _MD_os2_map_socket_error
+
+NSPR_API(void) _MD_os2_map_recv_error(PRInt32 err);
+#define _PR_MD_MAP_RECV_ERROR   _MD_os2_map_recv_error
+
+NSPR_API(void) _MD_os2_map_recvfrom_error(PRInt32 err);
+#define _PR_MD_MAP_RECVFROM_ERROR   _MD_os2_map_recvfrom_error
+
+NSPR_API(void) _MD_os2_map_send_error(PRInt32 err);
+#define _PR_MD_MAP_SEND_ERROR   _MD_os2_map_send_error
+
+NSPR_API(void) _MD_os2_map_sendto_error(PRInt32 err);
+#define _PR_MD_MAP_SENDTO_ERROR _MD_os2_map_sendto_error
+
+NSPR_API(void) _MD_os2_map_writev_error(int err);
+#define _PR_MD_MAP_WRITEV_ERROR _MD_os2_map_writev_error
+
+NSPR_API(void) _MD_os2_map_accept_error(PRInt32 err);
+#define _PR_MD_MAP_ACCEPT_ERROR _MD_os2_map_accept_error
+
+NSPR_API(void) _MD_os2_map_acceptex_error(PRInt32 err);
+#define _PR_MD_MAP_ACCEPTEX_ERROR   _MD_os2_map_acceptex_error
+
+NSPR_API(void) _MD_os2_map_connect_error(PRInt32 err);
+#define _PR_MD_MAP_CONNECT_ERROR    _MD_os2_map_connect_error
+
+NSPR_API(void) _MD_os2_map_bind_error(PRInt32 err);
+#define _PR_MD_MAP_BIND_ERROR   _MD_os2_map_bind_error
+
+NSPR_API(void) _MD_os2_map_listen_error(PRInt32 err);
+#define _PR_MD_MAP_LISTEN_ERROR _MD_os2_map_listen_error
+
+NSPR_API(void) _MD_os2_map_shutdown_error(PRInt32 err);
+#define _PR_MD_MAP_SHUTDOWN_ERROR   _MD_os2_map_shutdown_error
+
+NSPR_API(void) _MD_os2_map_socketpair_error(int err);
+#define _PR_MD_MAP_SOCKETPAIR_ERROR _MD_os2_map_socketpair_error
+
+NSPR_API(void) _MD_os2_map_getsockname_error(PRInt32 err);
+#define _PR_MD_MAP_GETSOCKNAME_ERROR    _MD_os2_map_getsockname_error
+
+NSPR_API(void) _MD_os2_map_getpeername_error(PRInt32 err);
+#define _PR_MD_MAP_GETPEERNAME_ERROR    _MD_os2_map_getpeername_error
+
+NSPR_API(void) _MD_os2_map_getsockopt_error(PRInt32 err);
+#define _PR_MD_MAP_GETSOCKOPT_ERROR _MD_os2_map_getsockopt_error
+
+NSPR_API(void) _MD_os2_map_setsockopt_error(PRInt32 err);
+#define _PR_MD_MAP_SETSOCKOPT_ERROR _MD_os2_map_setsockopt_error
+
+NSPR_API(void) _MD_os2_map_open_error(PRInt32 err);
+#define _PR_MD_MAP_OPEN_ERROR   _MD_os2_map_open_error
+
+NSPR_API(void) _MD_os2_map_gethostname_error(PRInt32 err);
+#define _PR_MD_MAP_GETHOSTNAME_ERROR    _MD_os2_map_gethostname_error
+
+NSPR_API(void) _MD_os2_map_select_error(PRInt32 err);
+#define _PR_MD_MAP_SELECT_ERROR _MD_os2_map_select_error
+
+NSPR_API(void) _MD_os2_map_lockf_error(int err);
+#define _PR_MD_MAP_LOCKF_ERROR  _MD_os2_map_lockf_error
+
+#endif /* nspr_os2_errors_h___ */
diff --git a/nsprpub/pr/include/md/_pcos.h b/nsprpub/pr/include/md/_pcos.h
new file mode 100644
index 0000000000..679fe19b10
--- /dev/null
+++ b/nsprpub/pr/include/md/_pcos.h
@@ -0,0 +1,51 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prpcos_h___
+#define prpcos_h___
+
+#define PR_DLL_SUFFIX       ".dll"
+
+#include <stdlib.h>
+
+#define DIRECTORY_SEPARATOR         '\\'
+#define DIRECTORY_SEPARATOR_STR     "\\"
+#define PATH_SEPARATOR              ';'
+
+/*
+** Routines for processing command line arguments
+*/
+PR_BEGIN_EXTERN_C
+#ifndef XP_OS2
+extern char *optarg;
+extern int optind;
+extern int getopt(int argc, char **argv, char *spec);
+#endif
+PR_END_EXTERN_C
+
+
+/*
+** Definitions of directory structures amd functions
+** These definitions are from:
+**      <dirent.h>
+*/
+#ifdef XP_OS2
+#include <sys/types.h>
+#endif
+#include <sys/stat.h>
+#include <io.h>
+#include <fcntl.h>          /* O_BINARY */
+
+#ifdef OS2
+extern PRStatus _MD_OS2GetHostName(char *name, PRUint32 namelen);
+#define _MD_GETHOSTNAME _MD_OS2GetHostName
+#else
+extern PRStatus _MD_WindowsGetHostName(char *name, PRUint32 namelen);
+#define _MD_GETHOSTNAME _MD_WindowsGetHostName
+extern PRStatus _MD_WindowsGetSysInfo(PRSysInfo cmd, char *name, PRUint32 namelen);
+#define _MD_GETSYSINFO _MD_WindowsGetSysInfo
+#endif
+
+#endif /* prpcos_h___ */
diff --git a/nsprpub/pr/include/md/_pth.h b/nsprpub/pr/include/md/_pth.h
new file mode 100644
index 0000000000..37d26e7005
--- /dev/null
+++ b/nsprpub/pr/include/md/_pth.h
@@ -0,0 +1,186 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_pth_defs_h_
+#define nspr_pth_defs_h_
+
+/*
+** Appropriate definitions of entry points not used in a pthreads world
+*/
+#define _PR_MD_BLOCK_CLOCK_INTERRUPTS()
+#define _PR_MD_UNBLOCK_CLOCK_INTERRUPTS()
+#define _PR_MD_DISABLE_CLOCK_INTERRUPTS()
+#define _PR_MD_ENABLE_CLOCK_INTERRUPTS()
+
+#if defined(BSDI)
+/*
+ * Mutex and condition attributes are not supported.  The attr
+ * argument to pthread_mutex_init() and pthread_cond_init() must
+ * be passed as NULL.
+ *
+ * The memset calls in _PT_PTHREAD_MUTEX_INIT and _PT_PTHREAD_COND_INIT
+ * are to work around BSDI's using a single bit to indicate a mutex
+ * or condition variable is initialized.  This entire BSDI section
+ * will go away when BSDI releases updated threads libraries for
+ * BSD/OS 3.1 and 4.0.
+ */
+#define _PT_PTHREAD_MUTEXATTR_INIT(x)     0
+#define _PT_PTHREAD_MUTEXATTR_DESTROY(x)  /* */
+#define _PT_PTHREAD_MUTEX_INIT(m, a)      (memset(&(m), 0, sizeof(m)), \
+                                      pthread_mutex_init(&(m), NULL))
+#define _PT_PTHREAD_MUTEX_IS_LOCKED(m)    (EBUSY == pthread_mutex_trylock(&(m)))
+#define _PT_PTHREAD_CONDATTR_INIT(x)      0
+#define _PT_PTHREAD_CONDATTR_DESTROY(x)   /* */
+#define _PT_PTHREAD_COND_INIT(m, a)       (memset(&(m), 0, sizeof(m)), \
+                                      pthread_cond_init(&(m), NULL))
+#else
+#define _PT_PTHREAD_MUTEXATTR_INIT        pthread_mutexattr_init
+#define _PT_PTHREAD_MUTEXATTR_DESTROY     pthread_mutexattr_destroy
+#define _PT_PTHREAD_MUTEX_INIT(m, a)      pthread_mutex_init(&(m), &(a))
+#if defined(FREEBSD)
+#define _PT_PTHREAD_MUTEX_IS_LOCKED(m)    pt_pthread_mutex_is_locked(&(m))
+#else
+#define _PT_PTHREAD_MUTEX_IS_LOCKED(m)    (EBUSY == pthread_mutex_trylock(&(m)))
+#endif
+#if defined(ANDROID)
+/* Conditional attribute init and destroy aren't implemented in bionic. */
+#define _PT_PTHREAD_CONDATTR_INIT(x)      0
+#define _PT_PTHREAD_CONDATTR_DESTROY(x)   /* */
+#else
+#define _PT_PTHREAD_CONDATTR_INIT         pthread_condattr_init
+#define _PT_PTHREAD_CONDATTR_DESTROY      pthread_condattr_destroy
+#endif
+#define _PT_PTHREAD_COND_INIT(m, a)       pthread_cond_init(&(m), &(a))
+#endif
+
+/* The pthreads standard does not specify an invalid value for the
+ * pthread_t handle.  (0 is usually an invalid pthread identifier
+ * but there are exceptions, for example, DG/UX.)  These macros
+ * define a way to set the handle to or compare the handle with an
+ * invalid identifier.  These macros are not portable and may be
+ * more of a problem as we adapt to more pthreads implementations.
+ * They are only used in the PRMonitor functions.  Do not use them
+ * in new code.
+ *
+ * Unfortunately some of our clients depend on certain properties
+ * of our PRMonitor implementation, preventing us from replacing
+ * it by a portable implementation.
+ * - High-performance servers like the fact that PR_EnterMonitor
+ *   only calls PR_Lock and PR_ExitMonitor only calls PR_Unlock.
+ *   (A portable implementation would use a PRLock and a PRCondVar
+ *   to implement the recursive lock in a monitor and call both
+ *   PR_Lock and PR_Unlock in PR_EnterMonitor and PR_ExitMonitor.)
+ *   Unfortunately this forces us to read the monitor owner field
+ *   without holding a lock.
+ * - One way to make it safe to read the monitor owner field
+ *   without holding a lock is to make that field a PRThread*
+ *   (one should be able to read a pointer with a single machine
+ *   instruction).  However, PR_GetCurrentThread calls calloc if
+ *   it is called by a thread that was not created by NSPR.  The
+ *   malloc tracing tools in the Mozilla client use PRMonitor for
+ *   locking in their malloc, calloc, and free functions.  If
+ *   PR_EnterMonitor calls any of these functions, infinite
+ *   recursion ensues.
+ */
+#if defined(AIX) || defined(SOLARIS) \
+    || defined(LINUX) || defined(__GNU__) || defined(__GLIBC__) \
+    || defined(HPUX) || defined(FREEBSD) \
+    || defined(NETBSD) || defined(OPENBSD) || defined(BSDI) \
+    || defined(NTO) || defined(DARWIN) \
+    || defined(UNIXWARE) || defined(RISCOS)
+#define _PT_PTHREAD_INVALIDATE_THR_HANDLE(t)  (t) = 0
+#define _PT_PTHREAD_THR_HANDLE_IS_INVALID(t)  (t) == 0
+#define _PT_PTHREAD_COPY_THR_HANDLE(st, dt)   (dt) = (st)
+#else
+#error "pthreads is not supported for this architecture"
+#endif
+
+#if defined(_PR_PTHREADS)
+#define _PT_PTHREAD_ATTR_INIT            pthread_attr_init
+#define _PT_PTHREAD_ATTR_DESTROY         pthread_attr_destroy
+#define _PT_PTHREAD_CREATE(t, a, f, r)   pthread_create(t, &a, f, r)
+#define _PT_PTHREAD_KEY_CREATE           pthread_key_create
+#define _PT_PTHREAD_ATTR_SETSCHEDPOLICY  pthread_attr_setschedpolicy
+#define _PT_PTHREAD_ATTR_GETSTACKSIZE(a, s) pthread_attr_getstacksize(a, s)
+#define _PT_PTHREAD_GETSPECIFIC(k, r)    (r) = pthread_getspecific(k)
+#else
+#error "Cannot determine pthread strategy"
+#endif
+
+/*
+ * These platforms don't have sigtimedwait()
+ */
+#if (defined(AIX) && !defined(AIX4_3_PLUS)) \
+    || defined(LINUX) || defined(__GNU__)|| defined(__GLIBC__) \
+    || defined(FREEBSD) || defined(NETBSD) || defined(OPENBSD) \
+    || defined(BSDI) || defined(UNIXWARE) \
+    || defined(DARWIN)
+#define PT_NO_SIGTIMEDWAIT
+#endif
+
+#if defined(AIX)
+#include <sys/priv.h>
+#include <sys/sched.h>
+#ifndef PTHREAD_CREATE_JOINABLE
+#define PTHREAD_CREATE_JOINABLE     PTHREAD_CREATE_UNDETACHED
+#endif
+#define PT_PRIO_MIN            DEFAULT_PRIO
+#define PT_PRIO_MAX            DEFAULT_PRIO
+#elif defined(HPUX)
+#include <sys/sched.h>
+#define PT_PRIO_MIN            sched_get_priority_min(SCHED_OTHER)
+#define PT_PRIO_MAX            sched_get_priority_max(SCHED_OTHER)
+#elif defined(LINUX) || defined(__GNU__) || defined(__GLIBC__) \
+    || defined(FREEBSD)
+#define PT_PRIO_MIN            sched_get_priority_min(SCHED_OTHER)
+#define PT_PRIO_MAX            sched_get_priority_max(SCHED_OTHER)
+#elif defined(NTO)
+/*
+ * Neutrino has functions that return the priority range but
+ * they return invalid numbers, so I just hard coded these here
+ * for now.  Jerry.Kirk@Nexarecorp.com
+ */
+#define PT_PRIO_MIN            0
+#define PT_PRIO_MAX            30
+#elif defined(SOLARIS)
+/*
+ * Solaris doesn't seem to have macros for the min/max priorities.
+ * The range of 0-127 is mentioned in the pthread_setschedparam(3T)
+ * man pages, and pthread_setschedparam indeed allows 0-127.  However,
+ * pthread_attr_setschedparam does not allow 0; it allows 1-127.
+ */
+#define PT_PRIO_MIN            1
+#define PT_PRIO_MAX            127
+#elif defined(OPENBSD)
+#define PT_PRIO_MIN            0
+#define PT_PRIO_MAX            31
+#elif defined(NETBSD) \
+    || defined(BSDI) || defined(DARWIN) || defined(UNIXWARE) \
+    || defined(RISCOS) /* XXX */
+#define PT_PRIO_MIN            0
+#define PT_PRIO_MAX            126
+#else
+#error "pthreads is not supported for this architecture"
+#endif
+
+/*
+ * The _PT_PTHREAD_YIELD function is called from a signal handler.
+ * Needed for garbage collection -- Look at PR_Suspend/PR_Resume
+ * implementation.
+ */
+#if defined(AIX)
+extern int (*_PT_aix_yield_fcn)();
+#define _PT_PTHREAD_YIELD()         (*_PT_aix_yield_fcn)()
+#elif defined(HPUX) || defined(SOLARIS) \
+    || defined(LINUX) || defined(__GNU__) || defined(__GLIBC__) \
+    || defined(FREEBSD) || defined(NETBSD) || defined(OPENBSD) \
+    || defined(BSDI) || defined(NTO) || defined(DARWIN) \
+    || defined(UNIXWARE) || defined(RISCOS)
+#define _PT_PTHREAD_YIELD()             sched_yield()
+#else
+#error "Need to define _PT_PTHREAD_YIELD for this platform"
+#endif
+
+#endif /* nspr_pth_defs_h_ */
diff --git a/nsprpub/pr/include/md/_qnx.cfg b/nsprpub/pr/include/md/_qnx.cfg
new file mode 100644
index 0000000000..a459b8cb7c
--- /dev/null
+++ b/nsprpub/pr/include/md/_qnx.cfg
@@ -0,0 +1,64 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef QNX
+#define QNX
+#endif
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#undef  HAVE_LONG_LONG
+#undef	HAVE_ALIGNED_DOUBLES
+#undef	HAVE_ALIGNED_LONGLONGS
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   1
+#define PR_ALIGN_OF_INT     1
+#define PR_ALIGN_OF_LONG    1
+#define PR_ALIGN_OF_INT64   1
+#define PR_ALIGN_OF_FLOAT   1
+#define PR_ALIGN_OF_DOUBLE  1
+#define PR_ALIGN_OF_POINTER 1
+#define PR_ALIGN_OF_WORD    1
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+#define PR_WORDS_PER_DWORD_LOG2  1
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_qnx.h b/nsprpub/pr/include/md/_qnx.h
new file mode 100644
index 0000000000..923e174386
--- /dev/null
+++ b/nsprpub/pr/include/md/_qnx.h
@@ -0,0 +1,182 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_qnx_defs_h___
+#define nspr_qnx_defs_h___
+
+/*
+** Internal configuration macros
+*/
+#define PR_LINKER_ARCH      "qnx"
+#define _PR_SI_SYSNAME      "QNX"
+#define _PR_SI_ARCHITECTURE "x86"
+#define PR_DLL_SUFFIX       ".so"
+
+#define _PR_VMBASE      0x30000000
+#define _PR_STACK_VMBASE    0x50000000
+#define _MD_DEFAULT_STACK_SIZE  65536L
+#define _MD_MMAP_FLAGS      MAP_PRIVATE
+
+#ifndef HAVE_WEAK_IO_SYMBOLS
+#define HAVE_WEAK_IO_SYMBOLS
+#endif
+
+#undef _PR_POLL_AVAILABLE
+#undef _PR_USE_POLL
+#define _PR_HAVE_SOCKADDR_LEN
+#define HAVE_BSD_FLOCK
+#define _PR_NO_LARGE_FILES
+#define _PR_STAT_HAS_ONLY_ST_ATIME
+
+#include <sys/select.h>
+
+#undef  HAVE_STACK_GROWING_UP
+#undef  HAVE_DLL
+#undef  USE_DLFCN
+#define NEED_STRFTIME_LOCK
+#define NEED_TIME_R
+#define _PR_NEED_STRCASECMP
+
+#ifndef HAVE_STRERROR
+#define HAVE_STRERROR
+#endif
+
+#define USE_SETJMP
+
+#include <setjmp.h>
+
+#define _SETJMP         setjmp
+#define _LONGJMP        longjmp
+#define _PR_CONTEXT_TYPE    jmp_buf
+#define _PR_NUM_GCREGS      _JBLEN
+#define _MD_GET_SP(_t)      (_t)->md.context[7]
+
+#define CONTEXT(_th)        ((_th)->md.context)
+
+/*
+** Initialize the thread context preparing it to execute _main.
+*/
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)   \
+{                           \
+    *status = PR_TRUE;                  \
+    if(_SETJMP(CONTEXT(_thread))) (*_main)();       \
+    _MD_GET_SP(_thread) = (int) ((_sp) - 128);      \
+}
+
+#define _MD_SWITCH_CONTEXT(_thread) \
+    if (!_SETJMP(CONTEXT(_thread))) {   \
+    (_thread)->md.errcode = errno;  \
+    _PR_Schedule();         \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread)    \
+{                   \
+    errno = (_thread)->md.errcode;  \
+    _MD_SET_CURRENT_THREAD(_thread);    \
+    _LONGJMP(CONTEXT(_thread), 1);  \
+}
+
+/*
+** Machine-dependent (MD) data structures.
+*/
+struct _MDThread {
+    _PR_CONTEXT_TYPE context;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+** md-specific cpu structure field
+*/
+#define _PR_MD_MAX_OSFD     FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD], fd_write_cnt[_PR_MD_MAX_OSFD], fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu)   PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock)      PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+#define _MD_INTERVAL_USE_GTOD
+#define _MD_EARLY_INIT          _MD_EarlyInit
+#define _MD_FINAL_INIT          _PR_UnixInit
+#define _MD_INIT_RUNNING_CPU(cpu)   _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD         _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)
+#define _MD_RESUME_THREAD(thread)
+#define _MD_CLEAN_THREAD(_thread)
+
+/*
+** We wrapped the select() call.  _MD_SELECT refers to the built-in,
+** unwrapped version.
+*/
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/select.h>
+#define _MD_SELECT      select
+
+#define SA_RESTART 0
+
+#endif /* nspr_qnx_defs_h___ */
diff --git a/nsprpub/pr/include/md/_riscos.cfg b/nsprpub/pr/include/md/_riscos.cfg
new file mode 100644
index 0000000000..c7adf2e135
--- /dev/null
+++ b/nsprpub/pr/include/md/_riscos.cfg
@@ -0,0 +1,111 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef RISCOS
+#define RISCOS
+#endif
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#ifndef HAVE_LONG_LONG
+#define HAVE_LONG_LONG
+#endif
+#undef  HAVE_ALIGNED_DOUBLES
+#undef  HAVE_ALIGNED_LONGLONGS
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+#define PR_ALIGN_OF_WORD    4
+
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+#define PR_WORDS_PER_DWORD_LOG2  1
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_riscos.h b/nsprpub/pr/include/md/_riscos.h
new file mode 100644
index 0000000000..ec03dcbd7e
--- /dev/null
+++ b/nsprpub/pr/include/md/_riscos.h
@@ -0,0 +1,176 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_riscos_defs_h___
+#define nspr_riscos_defs_h___
+
+/*
+** Internal configuration macros
+*/
+#define PR_LINKER_ARCH      "riscos"
+#define _PR_SI_SYSNAME      "RISCOS"
+#define _PR_SI_ARCHITECTURE "arm"
+#define PR_DLL_SUFFIX       ".so"
+
+#define _PR_POLL_AVAILABLE
+#define _PR_USE_POLL
+#define _PR_HAVE_SOCKADDR_LEN
+#undef HAVE_BSD_FLOCK
+#define _PR_NO_LARGE_FILES
+#define _PR_STAT_HAS_ONLY_ST_ATIME
+#define _PR_HAVE_POSIX_SEMAPHORES
+
+#include <sys/select.h>
+#include <sys/poll.h>
+#include <kernel.h>
+
+
+#undef  HAVE_STACK_GROWING_UP
+#define HAVE_DLL
+#define USE_DLFCN
+#define NEED_STRFTIME_LOCK
+#define NEED_TIME_R
+#define PT_NO_SIGTIMEDWAIT
+
+#ifndef HAVE_STRERROR
+#define HAVE_STRERROR
+#endif
+
+#define USE_SETJMP
+
+#include <setjmp.h>
+
+#define _SETJMP         setjmp
+#define _LONGJMP        longjmp
+#define _PR_CONTEXT_TYPE    jmp_buf
+#define _PR_NUM_GCREGS      _JBLEN
+#define _MD_GET_SP(_t)      (_t)->md.context[7]
+
+#define CONTEXT(_th)        ((_th)->md.context)
+
+
+/*
+** Initialize the thread context preparing it to execute _main.
+*/
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)   \
+{                           \
+    *status = PR_TRUE;                  \
+    if(_SETJMP(CONTEXT(_thread))) (*_main)();       \
+    _MD_GET_SP(_thread) = (int) ((_sp) - 128);      \
+}
+
+#define _MD_SWITCH_CONTEXT(_thread) \
+    if (!_SETJMP(CONTEXT(_thread))) {   \
+    (_thread)->md.errcode = errno;  \
+    _PR_Schedule();         \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread)    \
+{                   \
+    errno = (_thread)->md.errcode;  \
+    _MD_SET_CURRENT_THREAD(_thread);    \
+    _LONGJMP(CONTEXT(_thread), 1);  \
+}
+
+/*
+** Machine-dependent (MD) data structures.
+*/
+struct _MDThread {
+    _PR_CONTEXT_TYPE context;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+** md-specific cpu structure field
+*/
+#define _PR_MD_MAX_OSFD     FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD], fd_write_cnt[_PR_MD_MAX_OSFD], fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif
+};
+
+#define _PR_IOQ(_cpu)   /*  */  ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu)   PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock)      PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+#define _MD_INTERVAL_USE_GTOD
+#define _MD_EARLY_INIT          _MD_EarlyInit
+#define _MD_FINAL_INIT          _PR_UnixInit
+#define _MD_INIT_RUNNING_CPU(cpu)   _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD         _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)
+#define _MD_RESUME_THREAD(thread)
+#define _MD_CLEAN_THREAD(_thread)
+
+/*
+** We wrapped the select() call.  _MD_SELECT refers to the built-in,
+** unwrapped version.
+*/
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/select.h>
+#define _MD_SELECT      select
+
+#endif /* nspr_riscos_defs_h___ */
diff --git a/nsprpub/pr/include/md/_scoos.cfg b/nsprpub/pr/include/md/_scoos.cfg
new file mode 100644
index 0000000000..70cc6b7109
--- /dev/null
+++ b/nsprpub/pr/include/md/_scoos.cfg
@@ -0,0 +1,108 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef SCO
+#define SCO
+#endif
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#undef	HAVE_LONG_LONG
+#undef	HAVE_ALIGNED_DOUBLES
+#undef	HAVE_ALIGNED_LONGLONGS
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+
+#define _PR_POLL_BACKCOMPAT
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_scoos.h b/nsprpub/pr/include/md/_scoos.h
new file mode 100644
index 0000000000..1f6dda1535
--- /dev/null
+++ b/nsprpub/pr/include/md/_scoos.h
@@ -0,0 +1,171 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_scoos5_defs_h___
+#define nspr_scoos5_defs_h___
+
+/*
+ * Internal configuration macros
+ */
+
+#define PR_LINKER_ARCH  "scoos5"
+#define PR_DLL_SUFFIX       ".so"
+
+#define _PR_SI_SYSNAME      "SCO"
+#define _PR_SI_ARCHITECTURE "x86"
+#define _PR_STACK_VMBASE    0x50000000
+
+#define _MD_DEFAULT_STACK_SIZE  65536L
+#define _MD_MMAP_FLAGS          MAP_PRIVATE
+
+#undef  HAVE_STACK_GROWING_UP
+#define HAVE_DLL
+#define USE_DLFCN
+
+#if !defined (HAVE_STRERROR)
+#define HAVE_STRERROR
+#endif
+
+#ifndef HAVE_WEAK_IO_SYMBOLS
+#define HAVE_WEAK_IO_SYMBOLS
+#endif
+
+#define _PR_POLL_AVAILABLE
+#define _PR_USE_POLL
+#define _PR_NO_LARGE_FILES
+#define _PR_STAT_HAS_ONLY_ST_ATIME
+
+#define NEED_STRFTIME_LOCK
+#define NEED_TIME_R
+#define _PR_RECV_BROKEN /* recv doesn't work on Unix Domain Sockets */
+
+#define USE_SETJMP
+
+#ifdef _PR_LOCAL_THREADS_ONLY
+#include <setjmp.h>
+
+#define _MD_GET_SP(_t)  (_t)->md.jb[4]
+#define PR_NUM_GCREGS   _SIGJBLEN
+#define PR_CONTEXT_TYPE sigjmp_buf
+
+#define CONTEXT(_th) ((_th)->md.jb)
+
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)               \
+{                                                                   \
+    *status = PR_TRUE;                                              \
+    if (sigsetjmp(CONTEXT(_thread),1)) {                            \
+        (*_main)();                                                 \
+    }                                                               \
+    _MD_GET_SP(_thread) = (int) ((_sp) - 64);   \
+}
+
+#define _MD_SWITCH_CONTEXT(_thread)                                 \
+    if (!sigsetjmp(CONTEXT(_thread), 1)) {                          \
+        (_thread)->md.errcode = errno;                              \
+        _PR_Schedule();                                             \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread)                                \
+{                                                                   \
+    errno = (_thread)->osErrorCode;                                 \
+    _MD_SET_CURRENT_THREAD(_thread);                                \
+    siglongjmp(CONTEXT(_thread), 1);                                \
+}
+
+#endif /* _PR_LOCAL_THREADS_ONLY */
+
+struct _MDThread {
+    jmp_buf jb;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+            fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif  /* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock) PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+#define _MD_EARLY_INIT              _MD_EarlyInit
+#define _MD_FINAL_INIT              _PR_UnixInit
+#define _MD_INIT_RUNNING_CPU(cpu)   _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD             _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)
+#define _MD_RESUME_THREAD(thread)
+#define _MD_CLEAN_THREAD(_thread)
+
+#define _MD_INTERVAL_USE_GTOD
+
+#define _MD_SELECT      _select
+#define _MD_POLL        _poll
+
+#endif /* nspr_scoos5_defs_h___ */
diff --git a/nsprpub/pr/include/md/_solaris.cfg b/nsprpub/pr/include/md/_solaris.cfg
new file mode 100644
index 0000000000..674563747a
--- /dev/null
+++ b/nsprpub/pr/include/md/_solaris.cfg
@@ -0,0 +1,171 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef SOLARIS
+#define SOLARIS
+#endif
+
+#define PR_AF_INET6 26  /* same as AF_INET6 */
+
+#if defined(sparc) || defined(__sparc)
+#undef  IS_LITTLE_ENDIAN
+#define IS_BIG_ENDIAN 1
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_DOUBLE  8
+#if defined(__sparcv9)
+#define IS_64
+#endif
+#elif defined(__x86_64)
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_DOUBLE  8
+#define IS_64
+#elif defined(i386) || defined(__i386)
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_DOUBLE  4
+#else
+#error unknown processor
+#endif
+
+#ifdef IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   8
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   3
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    64
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   6
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_POINTER 8
+
+#else /* IS_64 */
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_POINTER 4
+
+#endif /* IS_64 */
+
+#ifndef HAVE_LONG_LONG
+#define	HAVE_LONG_LONG
+#endif
+#define	HAVE_ALIGNED_DOUBLES
+#define	HAVE_ALIGNED_LONGLONGS
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* ifndef nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_solaris.h b/nsprpub/pr/include/md/_solaris.h
new file mode 100644
index 0000000000..4ebf77fd96
--- /dev/null
+++ b/nsprpub/pr/include/md/_solaris.h
@@ -0,0 +1,493 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_solaris_defs_h___
+#define nspr_solaris_defs_h___
+
+/*
+ * Internal configuration macros
+ */
+
+#define PR_LINKER_ARCH  "solaris"
+#define _PR_SI_SYSNAME  "SOLARIS"
+#ifdef sparc
+#define _PR_SI_ARCHITECTURE "sparc"
+#elif defined(__x86_64)
+#define _PR_SI_ARCHITECTURE "x86-64"
+#elif defined(i386)
+#define _PR_SI_ARCHITECTURE "x86"
+#else
+#error unknown processor
+#endif
+#define PR_DLL_SUFFIX       ".so"
+
+#define _PR_VMBASE      0x30000000
+#define _PR_STACK_VMBASE    0x50000000
+#define _MD_DEFAULT_STACK_SIZE  (2*65536L)
+#define _MD_MMAP_FLAGS          MAP_SHARED
+
+#undef  HAVE_STACK_GROWING_UP
+
+#ifndef HAVE_WEAK_IO_SYMBOLS
+#define HAVE_WEAK_IO_SYMBOLS
+#endif
+
+#undef  HAVE_WEAK_MALLOC_SYMBOLS
+#define HAVE_DLL
+#define USE_DLFCN
+#define NEED_STRFTIME_LOCK
+
+/*
+ * Intel x86 has atomic instructions.
+ *
+ * Sparc v8 does not have instructions to efficiently implement
+ * atomic increment/decrement operations.  We use the default
+ * atomic routine implementation in pratom.c.
+ *
+ * 64-bit Solaris requires sparc v9, which has atomic instructions.
+ */
+#if defined(i386) || defined(IS_64)
+#define _PR_HAVE_ATOMIC_OPS
+#endif
+
+#define _PR_POLL_AVAILABLE
+#define _PR_USE_POLL
+#define _PR_STAT_HAS_ST_ATIM
+#ifdef SOLARIS2_5
+#define _PR_HAVE_SYSV_SEMAPHORES
+#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
+#else
+#define _PR_HAVE_POSIX_SEMAPHORES
+#define PR_HAVE_POSIX_NAMED_SHARED_MEMORY
+#endif
+#define _PR_HAVE_GETIPNODEBYNAME
+#define _PR_HAVE_GETIPNODEBYADDR
+#define _PR_HAVE_GETADDRINFO
+#define _PR_INET6_PROBE
+#define _PR_ACCEPT_INHERIT_NONBLOCK
+#ifdef _PR_INET6
+#define _PR_HAVE_INET_NTOP
+#else
+#define AF_INET6 26
+struct addrinfo {
+    int ai_flags;
+    int ai_family;
+    int ai_socktype;
+    int ai_protocol;
+    size_t ai_addrlen;
+    char *ai_canonname;
+    struct sockaddr *ai_addr;
+    struct addrinfo *ai_next;
+};
+#define AI_CANONNAME 0x0010
+#define AI_V4MAPPED 0x0001
+#define AI_ALL      0x0002
+#define AI_ADDRCONFIG   0x0004
+#define _PR_HAVE_MD_SOCKADDR_IN6
+/* isomorphic to struct in6_addr on Solaris 8 */
+struct _md_in6_addr {
+    union {
+        PRUint8  _S6_u8[16];
+        PRUint32 _S6_u32[4];
+        PRUint32 __S6_align;
+    } _S6_un;
+};
+/* isomorphic to struct sockaddr_in6 on Solaris 8 */
+struct _md_sockaddr_in6 {
+    PRUint16 sin6_family;
+    PRUint16 sin6_port;
+    PRUint32 sin6_flowinfo;
+    struct _md_in6_addr sin6_addr;
+    PRUint32 sin6_scope_id;
+    PRUint32 __sin6_src_id;
+};
+#endif
+#if defined(_PR_PTHREADS)
+#define _PR_HAVE_GETHOST_R
+#define _PR_HAVE_GETHOST_R_POINTER
+#endif
+
+#include "prinrval.h"
+#define _MD_INTERVAL_INIT()
+NSPR_API(PRIntervalTime) _MD_Solaris_GetInterval(void);
+#define _MD_GET_INTERVAL                  _MD_Solaris_GetInterval
+NSPR_API(PRIntervalTime) _MD_Solaris_TicksPerSecond(void);
+#define _MD_INTERVAL_PER_SEC              _MD_Solaris_TicksPerSecond
+
+#if defined(_PR_HAVE_ATOMIC_OPS)
+/*
+** Atomic Operations
+*/
+#define _MD_INIT_ATOMIC()
+
+NSPR_API(PRInt32) _MD_AtomicIncrement(PRInt32 *val);
+#define _MD_ATOMIC_INCREMENT _MD_AtomicIncrement
+
+NSPR_API(PRInt32) _MD_AtomicAdd(PRInt32 *ptr, PRInt32 val);
+#define _MD_ATOMIC_ADD _MD_AtomicAdd
+
+NSPR_API(PRInt32) _MD_AtomicDecrement(PRInt32 *val);
+#define _MD_ATOMIC_DECREMENT _MD_AtomicDecrement
+
+NSPR_API(PRInt32) _MD_AtomicSet(PRInt32 *val, PRInt32 newval);
+#define _MD_ATOMIC_SET _MD_AtomicSet
+#endif /* _PR_HAVE_ATOMIC_OPS */
+
+#if defined(_PR_PTHREADS)
+
+NSPR_API(void)      _MD_EarlyInit(void);
+
+#define _MD_EARLY_INIT      _MD_EarlyInit
+#define _MD_FINAL_INIT      _PR_UnixInit
+
+#else /* _PR_PTHREADS */
+
+/*
+ * _PR_LOCAL_THREADS_ONLY implementation on Solaris
+ */
+
+#include "prthread.h"
+
+#include <errno.h>
+#include <ucontext.h>
+#include <sys/stack.h>
+#include <synch.h>
+
+/*
+** Initialization Related definitions
+*/
+
+NSPR_API(void)              _MD_EarlyInit(void);
+NSPR_API(void)              _MD_SolarisInit();
+#define _MD_EARLY_INIT      _MD_EarlyInit
+#define _MD_FINAL_INIT      _MD_SolarisInit
+#define _MD_INIT_THREAD     _MD_InitializeThread
+
+#ifdef USE_SETJMP
+
+#include <setjmp.h>
+
+#define _PR_CONTEXT_TYPE    jmp_buf
+
+#ifdef sparc
+#define _MD_GET_SP(_t)      (_t)->md.context[2]
+#else
+#define _MD_GET_SP(_t)      (_t)->md.context[4]
+#endif
+
+#define PR_NUM_GCREGS       _JBLEN
+#define CONTEXT(_thread)    (_thread)->md.context
+
+#else  /* ! USE_SETJMP */
+
+#ifdef sparc
+#define _PR_CONTEXT_TYPE    ucontext_t
+#define _MD_GET_SP(_t)      (_t)->md.context.uc_mcontext.gregs[REG_SP]
+/*
+** Sparc's use register windows. the _MD_GetRegisters for the sparc's
+** doesn't actually store anything into the argument buffer; instead the
+** register windows are homed to the stack. I assume that the stack
+** always has room for the registers to spill to...
+*/
+#define PR_NUM_GCREGS       0
+#else
+#define _PR_CONTEXT_TYPE    unsigned int edi; sigset_t oldMask, blockMask; ucontext_t
+#define _MD_GET_SP(_t)      (_t)->md.context.uc_mcontext.gregs[USP]
+#define PR_NUM_GCREGS       _JBLEN
+#endif
+
+#define CONTEXT(_thread)    (&(_thread)->md.context)
+
+#endif /* ! USE_SETJMP */
+
+#include <time.h>
+/*
+ * Because clock_gettime() on Solaris/x86 always generates a
+ * segmentation fault, we use an emulated version _pr_solx86_clock_gettime(),
+ * which is implemented using gettimeofday().
+ */
+#ifdef i386
+#define GETTIME(tt) _pr_solx86_clock_gettime(CLOCK_REALTIME, (tt))
+#else
+#define GETTIME(tt) clock_gettime(CLOCK_REALTIME, (tt))
+#endif  /* i386 */
+
+#define _MD_SAVE_ERRNO(_thread)         (_thread)->md.errcode = errno;
+#define _MD_RESTORE_ERRNO(_thread)      errno = (_thread)->md.errcode;
+
+#ifdef sparc
+
+#ifdef USE_SETJMP
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)         \
+    PR_BEGIN_MACRO                    \
+    int *context = (_thread)->md.context;         \
+    *status = PR_TRUE;              \
+    (void) setjmp(context);               \
+    (_thread)->md.context[1] = (int) ((_sp) - 64); \
+    (_thread)->md.context[2] = (int) _main;       \
+    (_thread)->md.context[3] = (int) _main + 4; \
+    _thread->no_sched = 0; \
+    PR_END_MACRO
+
+#define _MD_SWITCH_CONTEXT(_thread)    \
+    if (!setjmp(CONTEXT(_thread))) { \
+    _MD_SAVE_ERRNO(_thread)    \
+    _MD_SET_LAST_THREAD(_thread);    \
+    _MD_SET_CURRENT_THREAD(_thread);     \
+    _PR_Schedule();          \
+    }
+
+#define _MD_RESTORE_CONTEXT(_newThread)     \
+{                    \
+    _MD_RESTORE_ERRNO(_newThread)       \
+    _MD_SET_CURRENT_THREAD(_newThread); \
+    longjmp(CONTEXT(_newThread), 1);    \
+}
+
+#else
+/*
+** Initialize the thread context preparing it to execute _main.
+*/
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)                   \
+    PR_BEGIN_MACRO                                                      \
+    ucontext_t *uc = CONTEXT(_thread);                                  \
+    *status = PR_TRUE;                                                  \
+    getcontext(uc);                                                     \
+    uc->uc_stack.ss_sp = (char *) ((unsigned long)(_sp - WINDOWSIZE - SA(MINFRAME)) & 0xfffffff8);  \
+    uc->uc_stack.ss_size = _thread->stack->stackSize;                   \
+    uc->uc_stack.ss_flags = 0;              /* ? */                     \
+    uc->uc_mcontext.gregs[REG_SP] = (unsigned int) uc->uc_stack.ss_sp;  \
+    uc->uc_mcontext.gregs[REG_PC] = (unsigned int) _main;               \
+    uc->uc_mcontext.gregs[REG_nPC] = (unsigned int) ((char*)_main)+4;   \
+    uc->uc_flags = UC_ALL;                                              \
+    _thread->no_sched = 0;                                              \
+    PR_END_MACRO
+
+/*
+** Switch away from the current thread context by saving its state and
+** calling the thread scheduler. Reload cpu when we come back from the
+** context switch because it might have changed.
+*/
+#define _MD_SWITCH_CONTEXT(_thread)                 \
+    PR_BEGIN_MACRO                                  \
+        if (!getcontext(CONTEXT(_thread))) {        \
+            _MD_SAVE_ERRNO(_thread);                \
+            _MD_SET_LAST_THREAD(_thread);           \
+            _PR_Schedule();                         \
+        }                                           \
+    PR_END_MACRO
+
+/*
+** Restore a thread context that was saved by _MD_SWITCH_CONTEXT or
+** initialized by _MD_INIT_CONTEXT.
+*/
+#define _MD_RESTORE_CONTEXT(_newThread)                     \
+    PR_BEGIN_MACRO                                          \
+        ucontext_t *uc = CONTEXT(_newThread);               \
+        uc->uc_mcontext.gregs[11] = 1;                      \
+        _MD_RESTORE_ERRNO(_newThread);                      \
+        _MD_SET_CURRENT_THREAD(_newThread);                 \
+        setcontext(uc);                                     \
+    PR_END_MACRO
+#endif
+
+#else  /* x86 solaris */
+
+#ifdef USE_SETJMP
+
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
+    PR_BEGIN_MACRO \
+    *status = PR_TRUE; \
+    if (setjmp(CONTEXT(_thread))) _main(); \
+    _MD_GET_SP(_thread) = (int) ((_sp) - 64); \
+    PR_END_MACRO
+
+#define _MD_SWITCH_CONTEXT(_thread) \
+    if (!setjmp(CONTEXT(_thread))) { \
+        _MD_SAVE_ERRNO(_thread) \
+        _PR_Schedule(); \
+    }
+
+#define _MD_RESTORE_CONTEXT(_newThread) \
+{ \
+    _MD_RESTORE_ERRNO(_newThread) \
+    _MD_SET_CURRENT_THREAD(_newThread); \
+    longjmp(CONTEXT(_newThread), 1); \
+}
+
+#else /* USE_SETJMP */
+
+#define WINDOWSIZE      0
+
+int getedi(void);
+void setedi(int);
+
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)         \
+    PR_BEGIN_MACRO                  \
+    ucontext_t *uc = CONTEXT(_thread);      \
+        *status = PR_TRUE;              \
+    getcontext(uc);                 \
+    /* Force sp to be double aligned! */        \
+        uc->uc_mcontext.gregs[USP] = (int) ((unsigned long)(_sp - WINDOWSIZE - SA(MINFRAME)) & 0xfffffff8); \
+    uc->uc_mcontext.gregs[PC] = (int) _main;    \
+    (_thread)->no_sched = 0; \
+    PR_END_MACRO
+
+/* getcontext() may return 1, contrary to what the man page says */
+#define _MD_SWITCH_CONTEXT(_thread)         \
+    PR_BEGIN_MACRO                  \
+    ucontext_t *uc = CONTEXT(_thread);      \
+    PR_ASSERT(_thread->no_sched);           \
+    sigfillset(&((_thread)->md.blockMask));     \
+    sigprocmask(SIG_BLOCK, &((_thread)->md.blockMask),  \
+        &((_thread)->md.oldMask));      \
+    (_thread)->md.edi = getedi();           \
+    if (! getcontext(uc)) {             \
+        sigprocmask(SIG_SETMASK, &((_thread)->md.oldMask), NULL); \
+        uc->uc_mcontext.gregs[EDI] = (_thread)->md.edi; \
+        _MD_SAVE_ERRNO(_thread)         \
+            _MD_SET_LAST_THREAD(_thread);           \
+        _PR_Schedule();             \
+    } else {                    \
+        sigprocmask(SIG_SETMASK, &((_thread)->md.oldMask), NULL); \
+        setedi((_thread)->md.edi);      \
+        PR_ASSERT(_MD_LAST_THREAD() !=_MD_CURRENT_THREAD()); \
+        _MD_LAST_THREAD()->no_sched = 0;    \
+    }                       \
+    PR_END_MACRO
+
+/*
+** Restore a thread context, saved by _PR_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_newthread)         \
+    PR_BEGIN_MACRO                  \
+    ucontext_t *uc = CONTEXT(_newthread);       \
+    uc->uc_mcontext.gregs[EAX] = 1;         \
+    _MD_RESTORE_ERRNO(_newthread)           \
+    _MD_SET_CURRENT_THREAD(_newthread);     \
+    (_newthread)->no_sched = 1;         \
+    setcontext(uc);                 \
+    PR_END_MACRO
+#endif /* USE_SETJMP */
+
+#endif /* sparc */
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDThread {
+    _PR_CONTEXT_TYPE context;
+    int errcode;
+    int id;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+            fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif  /* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock)              PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+#define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD                 _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)
+#define _MD_RESUME_THREAD(thread)
+#define _MD_CLEAN_THREAD(_thread)
+
+extern PRStatus _MD_WAIT(struct PRThread *, PRIntervalTime timeout);
+extern PRStatus _MD_WAKEUP_WAITER(struct PRThread *);
+extern void     _MD_YIELD(void);
+extern PRStatus _MD_InitializeThread(PRThread *thread);
+extern void     _MD_SET_PRIORITY(struct _MDThread *thread,
+                                 PRThreadPriority newPri);
+extern PRStatus _MD_CREATE_THREAD(PRThread *thread, void (*start) (void *),
+                                  PRThreadPriority priority, PRThreadScope scope, PRThreadState state,
+                                  PRUint32 stackSize);
+
+/* The following defines the unwrapped versions of select() and poll(). */
+extern int _select(int nfds, fd_set *readfds, fd_set *writefds,
+                   fd_set *exceptfds, struct timeval *timeout);
+#define _MD_SELECT  _select
+
+#include <stropts.h>
+#include <poll.h>
+#define _MD_POLL _poll
+extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
+
+PR_BEGIN_EXTERN_C
+
+/*
+** Missing function prototypes
+*/
+extern int gethostname (char *name, int namelen);
+
+PR_END_EXTERN_C
+
+#endif /* _PR_PTHREADS */
+
+extern void _MD_solaris_map_sendfile_error(int err);
+
+#endif /* nspr_solaris_defs_h___ */
+
diff --git a/nsprpub/pr/include/md/_unix_errors.h b/nsprpub/pr/include/md/_unix_errors.h
new file mode 100644
index 0000000000..0578fd0275
--- /dev/null
+++ b/nsprpub/pr/include/md/_unix_errors.h
@@ -0,0 +1,139 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prunixerrors_h___
+#define prunixerrors_h___
+
+#include <unistd.h>
+#include <stddef.h>
+
+PR_BEGIN_EXTERN_C
+
+extern void _MD_unix_map_default_error(int err);
+#define _PR_MD_MAP_DEFAULT_ERROR    _MD_unix_map_default_error
+
+extern void _MD_unix_map_opendir_error(int err);
+#define _PR_MD_MAP_OPENDIR_ERROR    _MD_unix_map_opendir_error
+
+extern void _MD_unix_map_closedir_error(int err);
+#define _PR_MD_MAP_CLOSEDIR_ERROR   _MD_unix_map_closedir_error
+
+extern void _MD_unix_readdir_error(int err);
+#define _PR_MD_MAP_READDIR_ERROR    _MD_unix_readdir_error
+
+extern void _MD_unix_map_unlink_error(int err);
+#define _PR_MD_MAP_UNLINK_ERROR _MD_unix_map_unlink_error
+
+extern void _MD_unix_map_stat_error(int err);
+#define _PR_MD_MAP_STAT_ERROR   _MD_unix_map_stat_error
+
+extern void _MD_unix_map_fstat_error(int err);
+#define _PR_MD_MAP_FSTAT_ERROR  _MD_unix_map_fstat_error
+
+extern void _MD_unix_map_rename_error(int err);
+#define _PR_MD_MAP_RENAME_ERROR _MD_unix_map_rename_error
+
+extern void _MD_unix_map_access_error(int err);
+#define _PR_MD_MAP_ACCESS_ERROR _MD_unix_map_access_error
+
+extern void _MD_unix_map_mkdir_error(int err);
+#define _PR_MD_MAP_MKDIR_ERROR  _MD_unix_map_mkdir_error
+
+extern void _MD_unix_map_rmdir_error(int err);
+#define _PR_MD_MAP_RMDIR_ERROR  _MD_unix_map_rmdir_error
+
+extern void _MD_unix_map_read_error(int err);
+#define _PR_MD_MAP_READ_ERROR   _MD_unix_map_read_error
+
+extern void _MD_unix_map_write_error(int err);
+#define _PR_MD_MAP_WRITE_ERROR  _MD_unix_map_write_error
+
+extern void _MD_unix_map_lseek_error(int err);
+#define _PR_MD_MAP_LSEEK_ERROR  _MD_unix_map_lseek_error
+
+extern void _MD_unix_map_fsync_error(int err);
+#define _PR_MD_MAP_FSYNC_ERROR  _MD_unix_map_fsync_error
+
+extern void _MD_unix_map_close_error(int err);
+#define _PR_MD_MAP_CLOSE_ERROR  _MD_unix_map_close_error
+
+extern void _MD_unix_map_socket_error(int err);
+#define _PR_MD_MAP_SOCKET_ERROR _MD_unix_map_socket_error
+
+extern void _MD_unix_map_socketavailable_error(int err);
+#define _PR_MD_MAP_SOCKETAVAILABLE_ERROR    _MD_unix_map_socketavailable_error
+
+extern void _MD_unix_map_recv_error(int err);
+#define _PR_MD_MAP_RECV_ERROR   _MD_unix_map_recv_error
+
+extern void _MD_unix_map_recvfrom_error(int err);
+#define _PR_MD_MAP_RECVFROM_ERROR   _MD_unix_map_recvfrom_error
+
+extern void _MD_unix_map_send_error(int err);
+#define _PR_MD_MAP_SEND_ERROR   _MD_unix_map_send_error
+
+extern void _MD_unix_map_sendto_error(int err);
+#define _PR_MD_MAP_SENDTO_ERROR _MD_unix_map_sendto_error
+
+extern void _MD_unix_map_writev_error(int err);
+#define _PR_MD_MAP_WRITEV_ERROR _MD_unix_map_writev_error
+
+extern void _MD_unix_map_accept_error(int err);
+#define _PR_MD_MAP_ACCEPT_ERROR _MD_unix_map_accept_error
+
+extern void _MD_unix_map_connect_error(int err);
+#define _PR_MD_MAP_CONNECT_ERROR    _MD_unix_map_connect_error
+
+extern void _MD_unix_map_bind_error(int err);
+#define _PR_MD_MAP_BIND_ERROR   _MD_unix_map_bind_error
+
+extern void _MD_unix_map_listen_error(int err);
+#define _PR_MD_MAP_LISTEN_ERROR _MD_unix_map_listen_error
+
+extern void _MD_unix_map_shutdown_error(int err);
+#define _PR_MD_MAP_SHUTDOWN_ERROR   _MD_unix_map_shutdown_error
+
+extern void _MD_unix_map_socketpair_error(int err);
+#define _PR_MD_MAP_SOCKETPAIR_ERROR _MD_unix_map_socketpair_error
+
+extern void _MD_unix_map_getsockname_error(int err);
+#define _PR_MD_MAP_GETSOCKNAME_ERROR    _MD_unix_map_getsockname_error
+
+extern void _MD_unix_map_getpeername_error(int err);
+#define _PR_MD_MAP_GETPEERNAME_ERROR    _MD_unix_map_getpeername_error
+
+extern void _MD_unix_map_getsockopt_error(int err);
+#define _PR_MD_MAP_GETSOCKOPT_ERROR _MD_unix_map_getsockopt_error
+
+extern void _MD_unix_map_setsockopt_error(int err);
+#define _PR_MD_MAP_SETSOCKOPT_ERROR _MD_unix_map_setsockopt_error
+
+extern void _MD_unix_map_open_error(int err);
+#define _PR_MD_MAP_OPEN_ERROR   _MD_unix_map_open_error
+
+extern void _MD_unix_map_mmap_error(int err);
+#define _PR_MD_MAP_MMAP_ERROR   _MD_unix_map_mmap_error
+
+extern void _MD_unix_map_gethostname_error(int err);
+#define _PR_MD_MAP_GETHOSTNAME_ERROR    _MD_unix_map_gethostname_error
+
+extern void _MD_unix_map_select_error(int err);
+#define _PR_MD_MAP_SELECT_ERROR _MD_unix_map_select_error
+
+extern void _MD_unix_map_poll_error(int err);
+#define _PR_MD_MAP_POLL_ERROR _MD_unix_map_poll_error
+
+extern void _MD_unix_map_poll_revents_error(int err);
+#define _PR_MD_MAP_POLL_REVENTS_ERROR _MD_unix_map_poll_revents_error
+
+extern void _MD_unix_map_flock_error(int err);
+#define _PR_MD_MAP_FLOCK_ERROR  _MD_unix_map_flock_error
+
+extern void _MD_unix_map_lockf_error(int err);
+#define _PR_MD_MAP_LOCKF_ERROR  _MD_unix_map_lockf_error
+
+PR_END_EXTERN_C
+
+#endif /* prunixerrors_h___ */
diff --git a/nsprpub/pr/include/md/_unixos.h b/nsprpub/pr/include/md/_unixos.h
new file mode 100644
index 0000000000..7d444cda16
--- /dev/null
+++ b/nsprpub/pr/include/md/_unixos.h
@@ -0,0 +1,620 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prunixos_h___
+#define prunixos_h___
+
+/*
+ * If FD_SETSIZE is not defined on the command line, set the default value
+ * before include select.h
+ */
+/*
+ * Linux: FD_SETSIZE is defined in /usr/include/sys/select.h and should
+ * not be redefined.
+ */
+#if !defined(LINUX) && !defined(__GNU__) && !defined(__GLIBC__) \
+    && !defined(DARWIN)
+#ifndef FD_SETSIZE
+#define FD_SETSIZE  4096
+#endif
+#endif
+
+#include <unistd.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <errno.h>
+
+#include "prio.h"
+#include "prmem.h"
+#include "prclist.h"
+
+/*
+ * For select(), fd_set, and struct timeval.
+ *
+ * In The Single UNIX(R) Specification, Version 2,
+ * the header file for select() is <sys/time.h>.
+ * In Version 3, the header file for select() is
+ * changed to <sys/select.h>.
+ *
+ * fd_set is defined in <sys/types.h>.  Usually
+ * <sys/time.h> includes <sys/types.h>, but on some
+ * older systems <sys/time.h> does not include
+ * <sys/types.h>, so we include it explicitly.
+ */
+#include <sys/time.h>
+#include <sys/types.h>
+#if defined(AIX)
+#include <sys/select.h>
+#endif
+
+#define HAVE_NETINET_TCP_H
+
+#define _PR_HAVE_O_APPEND
+
+#define PR_DIRECTORY_SEPARATOR      '/'
+#define PR_DIRECTORY_SEPARATOR_STR  "/"
+#define PR_PATH_SEPARATOR       ':'
+#define PR_PATH_SEPARATOR_STR       ":"
+typedef int (*FARPROC)();
+
+/*
+ * intervals at which GLOBAL threads wakeup to check for pending interrupt
+ */
+#define _PR_INTERRUPT_CHECK_INTERVAL_SECS 5
+extern PRIntervalTime intr_timeout_ticks;
+
+/*
+ * The bit flags for the in_flags and out_flags fields
+ * of _PR_UnixPollDesc
+ */
+#ifdef _PR_USE_POLL
+#define _PR_UNIX_POLL_READ    POLLIN
+#define _PR_UNIX_POLL_WRITE   POLLOUT
+#define _PR_UNIX_POLL_EXCEPT  POLLPRI
+#define _PR_UNIX_POLL_ERR     POLLERR
+#define _PR_UNIX_POLL_NVAL    POLLNVAL
+#define _PR_UNIX_POLL_HUP     POLLHUP
+#else /* _PR_USE_POLL */
+#define _PR_UNIX_POLL_READ    0x1
+#define _PR_UNIX_POLL_WRITE   0x2
+#define _PR_UNIX_POLL_EXCEPT  0x4
+#define _PR_UNIX_POLL_ERR     0x8
+#define _PR_UNIX_POLL_NVAL    0x10
+#define _PR_UNIX_POLL_HUP     0x20
+#endif /* _PR_USE_POLL */
+
+typedef struct _PRUnixPollDesc {
+    PRInt32 osfd;
+    PRInt16 in_flags;
+    PRInt16 out_flags;
+} _PRUnixPollDesc;
+
+typedef struct PRPollQueue {
+    PRCList links;        /* for linking PRPollQueue's together */
+    _PRUnixPollDesc *pds;        /* array of poll descriptors */
+    PRUintn npds;            /* length of the array */
+    PRPackedBool on_ioq;    /* is this on the async i/o work q? */
+    PRIntervalTime timeout;        /* timeout, in ticks */
+    struct PRThread *thr;
+} PRPollQueue;
+
+#define _PR_POLLQUEUE_PTR(_qp) \
+    ((PRPollQueue*) ((char*) (_qp) - offsetof(PRPollQueue,links)))
+
+
+extern PRInt32 _PR_WaitForMultipleFDs(
+    _PRUnixPollDesc *unixpds,
+    PRInt32 pdcnt,
+    PRIntervalTime timeout);
+extern void _PR_Unblock_IO_Wait(struct PRThread *thr);
+
+#if defined(_PR_LOCAL_THREADS_ONLY) || defined(_PR_GLOBAL_THREADS_ONLY)
+#define _MD_CHECK_FOR_EXIT()
+#endif
+
+extern fd_set _pr_md_read_set, _pr_md_write_set, _pr_md_exception_set;
+extern PRInt16 _pr_md_read_cnt[], _pr_md_write_cnt[], _pr_md_exception_cnt[];
+extern PRInt32 _pr_md_ioq_max_osfd;
+extern PRUint32 _pr_md_ioq_timeout;
+
+struct _MDFileDesc {
+    int osfd;
+#if defined(LINUX) && defined(_PR_PTHREADS)
+    int tcp_nodelay;  /* used by pt_LinuxSendFile */
+#endif
+};
+
+struct _MDDir {
+    DIR *d;
+};
+
+struct _PRCPU;
+extern void _MD_unix_init_running_cpu(struct _PRCPU *cpu);
+
+/*
+** Make a redzone at both ends of the stack segment. Disallow access
+** to those pages of memory. It's ok if the mprotect call's don't
+** work - it just means that we don't really have a functional
+** redzone.
+*/
+#include <sys/mman.h>
+#ifndef PROT_NONE
+#define PROT_NONE 0x0
+#endif
+
+#if defined(DEBUG) && !defined(DARWIN)
+#if !defined(SOLARIS)
+#include <string.h>  /* for memset() */
+#define _MD_INIT_STACK(ts,REDZONE)                  \
+    PR_BEGIN_MACRO                                  \
+    (void) mprotect((void*)ts->seg->vaddr, REDZONE, PROT_NONE); \
+    (void) mprotect((void*) ((char*)ts->seg->vaddr + REDZONE + ts->stackSize),\
+            REDZONE, PROT_NONE);                \
+    /*                                  \
+    ** Fill stack memory with something that turns into an illegal  \
+    ** pointer value. This will sometimes find runtime references to    \
+    ** uninitialized pointers. We don't do this for solaris because we  \
+    ** can use purify instead.                      \
+    */                                  \
+    if (_pr_debugStacks) {                      \
+    memset(ts->allocBase + REDZONE, 0xf7, ts->stackSize);       \
+    }                                   \
+    PR_END_MACRO
+#else   /* !SOLARIS */
+#define _MD_INIT_STACK(ts,REDZONE)                  \
+    PR_BEGIN_MACRO                                  \
+    (void) mprotect((void*)ts->seg->vaddr, REDZONE, PROT_NONE); \
+    (void) mprotect((void*) ((char*)ts->seg->vaddr + REDZONE + ts->stackSize),\
+            REDZONE, PROT_NONE);                \
+    PR_END_MACRO
+#endif  /* !SOLARIS */
+
+/*
+ * _MD_CLEAR_STACK
+ *  Allow access to the redzone pages; the access was turned off in
+ *  _MD_INIT_STACK.
+ */
+#define _MD_CLEAR_STACK(ts)                     \
+    PR_BEGIN_MACRO                                  \
+    (void) mprotect((void*)ts->seg->vaddr, REDZONE, PROT_READ|PROT_WRITE);\
+    (void) mprotect((void*) ((char*)ts->seg->vaddr + REDZONE + ts->stackSize),\
+            REDZONE, PROT_READ|PROT_WRITE);         \
+    PR_END_MACRO
+
+#else   /* DEBUG */
+
+#define _MD_INIT_STACK(ts,REDZONE)
+#define _MD_CLEAR_STACK(ts)
+
+#endif  /* DEBUG */
+
+#if !defined(SOLARIS)
+
+#define PR_SET_INTSOFF(newval)
+
+#endif
+
+/************************************************************************/
+
+extern void _PR_UnixInit(void);
+
+extern void _PR_UnixCleanup(void);
+#define _MD_EARLY_CLEANUP _PR_UnixCleanup
+
+/************************************************************************/
+
+struct _MDProcess {
+    pid_t pid;
+};
+
+struct PRProcess;
+struct PRProcessAttr;
+
+/* Create a new process (fork() + exec()) */
+#define _MD_CREATE_PROCESS _MD_CreateUnixProcess
+extern struct PRProcess * _MD_CreateUnixProcess(
+    const char *path,
+    char *const *argv,
+    char *const *envp,
+    const struct PRProcessAttr *attr
+);
+
+#define _MD_DETACH_PROCESS _MD_DetachUnixProcess
+extern PRStatus _MD_DetachUnixProcess(struct PRProcess *process);
+
+/* Wait for a child process to terminate */
+#define _MD_WAIT_PROCESS _MD_WaitUnixProcess
+extern PRStatus _MD_WaitUnixProcess(struct PRProcess *process,
+                                    PRInt32 *exitCode);
+
+#define _MD_KILL_PROCESS _MD_KillUnixProcess
+extern PRStatus _MD_KillUnixProcess(struct PRProcess *process);
+
+/************************************************************************/
+
+extern void _MD_EnableClockInterrupts(void);
+extern void _MD_DisableClockInterrupts(void);
+
+#define _MD_START_INTERRUPTS            _MD_StartInterrupts
+#define _MD_STOP_INTERRUPTS             _MD_StopInterrupts
+#define _MD_DISABLE_CLOCK_INTERRUPTS    _MD_DisableClockInterrupts
+#define _MD_ENABLE_CLOCK_INTERRUPTS     _MD_EnableClockInterrupts
+#define _MD_BLOCK_CLOCK_INTERRUPTS      _MD_BlockClockInterrupts
+#define _MD_UNBLOCK_CLOCK_INTERRUPTS    _MD_UnblockClockInterrupts
+
+/************************************************************************/
+
+extern void     _MD_InitCPUS(void);
+#define _MD_INIT_CPUS           _MD_InitCPUS
+
+extern void     _MD_Wakeup_CPUs(void);
+#define _MD_WAKEUP_CPUS _MD_Wakeup_CPUs
+
+#define _MD_PAUSE_CPU           _MD_PauseCPU
+
+#if defined(_PR_LOCAL_THREADS_ONLY) || defined(_PR_GLOBAL_THREADS_ONLY)
+#define _MD_CLEANUP_BEFORE_EXIT()
+#endif
+
+#define _MD_EXIT(status)        _exit(status)
+
+/************************************************************************/
+
+#define _MD_GET_ENV             getenv
+#define _MD_PUT_ENV             putenv
+
+/************************************************************************/
+
+#define _MD_INIT_FILEDESC(fd)
+
+extern void     _MD_MakeNonblock(PRFileDesc *fd);
+#define _MD_MAKE_NONBLOCK           _MD_MakeNonblock
+
+/************************************************************************/
+
+#if !defined(_PR_PTHREADS)
+
+extern void     _MD_InitSegs(void);
+extern PRStatus _MD_AllocSegment(PRSegment *seg, PRUint32 size,
+                                 void *vaddr);
+extern void     _MD_FreeSegment(PRSegment *seg);
+
+#define _MD_INIT_SEGS           _MD_InitSegs
+#define _MD_ALLOC_SEGMENT       _MD_AllocSegment
+#define _MD_FREE_SEGMENT        _MD_FreeSegment
+
+#endif /* !defined(_PR_PTHREADS) */
+
+/************************************************************************/
+
+#ifdef _MD_INTERVAL_USE_GTOD
+extern PRIntervalTime   _PR_UNIX_GetInterval(void);
+extern PRIntervalTime   _PR_UNIX_TicksPerSecond(void);
+#define _MD_INTERVAL_INIT()
+#define _MD_GET_INTERVAL        _PR_UNIX_GetInterval
+#define _MD_INTERVAL_PER_SEC        _PR_UNIX_TicksPerSecond
+#endif
+
+#ifdef _PR_HAVE_CLOCK_MONOTONIC
+extern PRIntervalTime   _PR_UNIX_GetInterval2(void);
+extern PRIntervalTime   _PR_UNIX_TicksPerSecond2(void);
+#define _MD_INTERVAL_INIT()
+#define _MD_GET_INTERVAL        _PR_UNIX_GetInterval2
+#define _MD_INTERVAL_PER_SEC        _PR_UNIX_TicksPerSecond2
+#endif
+
+#define _MD_INTERVAL_PER_MILLISEC() (_PR_MD_INTERVAL_PER_SEC() / 1000)
+#define _MD_INTERVAL_PER_MICROSEC() (_PR_MD_INTERVAL_PER_SEC() / 1000000)
+
+/************************************************************************/
+
+#define _MD_ERRNO()                 (errno)
+#define _MD_GET_SOCKET_ERROR()      (errno)
+
+/************************************************************************/
+
+extern PRInt32 _MD_AvailableSocket(PRInt32 osfd);
+
+extern void _MD_StartInterrupts(void);
+extern void _MD_StopInterrupts(void);
+extern void _MD_DisableClockInterrupts(void);
+extern void _MD_BlockClockInterrupts(void);
+extern void _MD_UnblockClockInterrupts(void);
+extern void _MD_PauseCPU(PRIntervalTime timeout);
+
+extern PRStatus _MD_open_dir(struct _MDDir *, const char *);
+extern PRInt32  _MD_close_dir(struct _MDDir *);
+extern char *   _MD_read_dir(struct _MDDir *, PRIntn);
+extern PRInt32  _MD_open(const char *name, PRIntn osflags, PRIntn mode);
+extern PRInt32  _MD_delete(const char *name);
+extern PRInt32  _MD_getfileinfo(const char *fn, PRFileInfo *info);
+extern PRInt32  _MD_getfileinfo64(const char *fn, PRFileInfo64 *info);
+extern PRInt32  _MD_getopenfileinfo(const PRFileDesc *fd, PRFileInfo *info);
+extern PRInt32  _MD_getopenfileinfo64(const PRFileDesc *fd, PRFileInfo64 *info);
+extern PRInt32  _MD_rename(const char *from, const char *to);
+extern PRInt32  _MD_access(const char *name, PRAccessHow how);
+extern PRInt32  _MD_mkdir(const char *name, PRIntn mode);
+extern PRInt32  _MD_rmdir(const char *name);
+extern PRInt32  _MD_accept_read(PRInt32 sock, PRInt32 *newSock,
+                                PRNetAddr **raddr, void *buf, PRInt32 amount);
+extern PRInt32  _PR_UnixSendFile(PRFileDesc *sd, PRSendFileData *sfd,
+                                 PRTransmitFileFlags flags, PRIntervalTime timeout);
+
+extern PRStatus _MD_LockFile(PRInt32 osfd);
+extern PRStatus _MD_TLockFile(PRInt32 osfd);
+extern PRStatus _MD_UnlockFile(PRInt32 osfd);
+
+#define _MD_OPEN_DIR(dir, name)         _MD_open_dir(dir, name)
+#define _MD_CLOSE_DIR(dir)              _MD_close_dir(dir)
+#define _MD_READ_DIR(dir, flags)        _MD_read_dir(dir, flags)
+#define _MD_OPEN(name, osflags, mode)   _MD_open(name, osflags, mode)
+#define _MD_OPEN_FILE(name, osflags, mode)  _MD_open(name, osflags, mode)
+extern PRInt32 _MD_read(PRFileDesc *fd, void *buf, PRInt32 amount);
+#define _MD_READ(fd,buf,amount)         _MD_read(fd,buf,amount)
+extern PRInt32 _MD_write(PRFileDesc *fd, const void *buf, PRInt32 amount);
+#define _MD_WRITE(fd,buf,amount)        _MD_write(fd,buf,amount)
+#define _MD_DELETE(name)                _MD_delete(name)
+#define _MD_GETFILEINFO(fn, info)       _MD_getfileinfo(fn, info)
+#define _MD_GETFILEINFO64(fn, info)     _MD_getfileinfo64(fn, info)
+#define _MD_GETOPENFILEINFO(fd, info)   _MD_getopenfileinfo(fd, info)
+#define _MD_GETOPENFILEINFO64(fd, info) _MD_getopenfileinfo64(fd, info)
+#define _MD_RENAME(from, to)            _MD_rename(from, to)
+#define _MD_ACCESS(name, how)           _MD_access(name, how)
+#define _MD_MKDIR(name, mode)           _MD_mkdir(name, mode)
+#define _MD_MAKE_DIR(name, mode)        _MD_mkdir(name, mode)
+#define _MD_RMDIR(name)                 _MD_rmdir(name)
+#define _MD_ACCEPT_READ(sock, newSock, raddr, buf, amount)  _MD_accept_read(sock, newSock, raddr, buf, amount)
+
+#define _MD_LOCKFILE _MD_LockFile
+#define _MD_TLOCKFILE _MD_TLockFile
+#define _MD_UNLOCKFILE _MD_UnlockFile
+
+
+extern PRInt32      _MD_socket(int af, int type, int flags);
+#define _MD_SOCKET  _MD_socket
+extern PRInt32      _MD_connect(PRFileDesc *fd, const PRNetAddr *addr,
+                                PRUint32 addrlen, PRIntervalTime timeout);
+#define _MD_CONNECT _MD_connect
+extern PRInt32      _MD_accept(PRFileDesc *fd, PRNetAddr *addr, PRUint32 *addrlen,
+                               PRIntervalTime timeout);
+#define _MD_ACCEPT  _MD_accept
+extern PRInt32      _MD_bind(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen);
+#define _MD_BIND    _MD_bind
+extern PRInt32      _MD_listen(PRFileDesc *fd, PRIntn backlog);
+#define _MD_LISTEN  _MD_listen
+extern PRInt32      _MD_shutdown(PRFileDesc *fd, PRIntn how);
+#define _MD_SHUTDOWN    _MD_shutdown
+
+extern PRInt32      _MD_recv(PRFileDesc *fd, void *buf, PRInt32 amount,
+                             PRIntn flags, PRIntervalTime timeout);
+#define _MD_RECV    _MD_recv
+extern PRInt32      _MD_send(PRFileDesc *fd, const void *buf, PRInt32 amount,
+                             PRIntn flags, PRIntervalTime timeout);
+#define _MD_SEND    _MD_send
+extern PRInt32      _MD_recvfrom(PRFileDesc *fd, void *buf, PRInt32 amount,
+                                 PRIntn flags, PRNetAddr *addr, PRUint32 *addrlen,
+                                 PRIntervalTime timeout);
+#define _MD_RECVFROM    _MD_recvfrom
+extern PRInt32 _MD_sendto(PRFileDesc *fd, const void *buf, PRInt32 amount,
+                          PRIntn flags, const PRNetAddr *addr, PRUint32 addrlen,
+                          PRIntervalTime timeout);
+#define _MD_SENDTO  _MD_sendto
+extern PRInt32      _MD_writev(PRFileDesc *fd, const struct PRIOVec *iov,
+                               PRInt32 iov_size, PRIntervalTime timeout);
+#define _MD_WRITEV  _MD_writev
+
+extern PRInt32      _MD_socketavailable(PRFileDesc *fd);
+#define _MD_SOCKETAVAILABLE     _MD_socketavailable
+extern PRInt64      _MD_socketavailable64(PRFileDesc *fd);
+#define _MD_SOCKETAVAILABLE64       _MD_socketavailable64
+
+#define _MD_PIPEAVAILABLE       _MD_socketavailable
+
+extern PRInt32 _MD_pr_poll(PRPollDesc *pds, PRIntn npds,
+                           PRIntervalTime timeout);
+#define _MD_PR_POLL     _MD_pr_poll
+
+extern PRInt32      _MD_close(PRInt32 osfd);
+#define _MD_CLOSE_FILE  _MD_close
+extern PRInt32      _MD_lseek(PRFileDesc*, PRInt32, PRSeekWhence);
+#define _MD_LSEEK   _MD_lseek
+extern PRInt64      _MD_lseek64(PRFileDesc*, PRInt64, PRSeekWhence);
+#define _MD_LSEEK64 _MD_lseek64
+extern PRInt32      _MD_fsync(PRFileDesc *fd);
+#define _MD_FSYNC   _MD_fsync
+
+extern PRInt32 _MD_socketpair(int af, int type, int flags, PRInt32 *osfd);
+#define _MD_SOCKETPAIR      _MD_socketpair
+
+#define _MD_CLOSE_SOCKET    _MD_close
+
+#ifndef NO_NSPR_10_SUPPORT
+#define _MD_STAT    stat
+#endif
+
+extern PRStatus _MD_getpeername(PRFileDesc *fd, PRNetAddr *addr,
+                                PRUint32 *addrlen);
+#define _MD_GETPEERNAME _MD_getpeername
+extern PRStatus _MD_getsockname(PRFileDesc *fd, PRNetAddr *addr,
+                                PRUint32 *addrlen);
+#define _MD_GETSOCKNAME _MD_getsockname
+
+extern PRStatus _MD_getsockopt(PRFileDesc *fd, PRInt32 level,
+                               PRInt32 optname, char* optval, PRInt32* optlen);
+#define _MD_GETSOCKOPT      _MD_getsockopt
+extern PRStatus _MD_setsockopt(PRFileDesc *fd, PRInt32 level,
+                               PRInt32 optname, const char* optval, PRInt32 optlen);
+#define _MD_SETSOCKOPT      _MD_setsockopt
+
+extern PRStatus _MD_set_fd_inheritable(PRFileDesc *fd, PRBool inheritable);
+#define _MD_SET_FD_INHERITABLE _MD_set_fd_inheritable
+
+extern void _MD_init_fd_inheritable(PRFileDesc *fd, PRBool imported);
+#define _MD_INIT_FD_INHERITABLE _MD_init_fd_inheritable
+
+extern void _MD_query_fd_inheritable(PRFileDesc *fd);
+#define _MD_QUERY_FD_INHERITABLE _MD_query_fd_inheritable
+
+extern PRStatus _MD_gethostname(char *name, PRUint32 namelen);
+#define _MD_GETHOSTNAME     _MD_gethostname
+
+extern PRStatus _MD_getsysinfo(PRSysInfo cmd, char *name, PRUint32 namelen);
+#define _MD_GETSYSINFO      _MD_getsysinfo
+
+extern int _MD_unix_get_nonblocking_connect_error(int osfd);
+
+/* Memory-mapped files */
+
+struct _MDFileMap {
+    PRIntn prot;
+    PRIntn flags;
+    PRBool isAnonFM; /* when true, PR_CloseFileMap() must close the related fd */
+};
+
+extern PRStatus _MD_CreateFileMap(struct PRFileMap *fmap, PRInt64 size);
+#define _MD_CREATE_FILE_MAP _MD_CreateFileMap
+
+#define _MD_GET_MEM_MAP_ALIGNMENT() PR_GetPageSize()
+
+extern void * _MD_MemMap(struct PRFileMap *fmap, PRInt64 offset,
+                         PRUint32 len);
+#define _MD_MEM_MAP _MD_MemMap
+
+extern PRStatus _MD_MemUnmap(void *addr, PRUint32 size);
+#define _MD_MEM_UNMAP _MD_MemUnmap
+
+extern PRStatus _MD_CloseFileMap(struct PRFileMap *fmap);
+#define _MD_CLOSE_FILE_MAP _MD_CloseFileMap
+
+extern PRStatus _MD_SyncMemMap(
+    PRFileDesc *fd,
+    void *addr,
+    PRUint32 len);
+#define _MD_SYNC_MEM_MAP _MD_SyncMemMap
+
+/*
+ * The standard (XPG4) gettimeofday() (from BSD) takes two arguments.
+ * On some SVR4 derivatives, gettimeofday() takes only one argument.
+ * The GETTIMEOFDAY macro is intended to hide this difference.
+ */
+#ifdef HAVE_SVID_GETTOD
+#define GETTIMEOFDAY(tp) gettimeofday(tp)
+#else
+#define GETTIMEOFDAY(tp) gettimeofday((tp), NULL)
+#endif
+
+#if defined(_PR_PTHREADS) && !defined(_PR_POLL_AVAILABLE)
+#define _PR_NEED_FAKE_POLL
+#endif
+
+#if defined(_PR_NEED_FAKE_POLL)
+
+/*
+ * Some platforms don't have poll(), but our pthreads code calls poll().
+ * As a temporary measure, I implemented a fake poll() using select().
+ * Here are the struct and macro definitions copied from sys/poll.h
+ * on Solaris 2.5.
+ */
+
+struct pollfd {
+    int fd;
+    short events;
+    short revents;
+};
+
+/* poll events */
+
+#define POLLIN      0x0001      /* fd is readable */
+#define POLLPRI     0x0002      /* high priority info at fd */
+#define POLLOUT     0x0004      /* fd is writeable (won't block) */
+#define POLLRDNORM  0x0040      /* normal data is readable */
+#define POLLWRNORM  POLLOUT
+#define POLLRDBAND  0x0080      /* out-of-band data is readable */
+#define POLLWRBAND  0x0100      /* out-of-band data is writeable */
+
+#define POLLNORM    POLLRDNORM
+
+#define POLLERR     0x0008      /* fd has error condition */
+#define POLLHUP     0x0010      /* fd has been hung up on */
+#define POLLNVAL    0x0020      /* invalid pollfd entry */
+
+extern int poll(struct pollfd *, unsigned long, int);
+
+#endif /* _PR_NEED_FAKE_POLL */
+
+/*
+** A vector of the UNIX I/O calls we use. These are here to smooth over
+** the rough edges needed for large files. All of NSPR's implmentaions
+** go through this vector using syntax of the form
+**      result = _md_iovector.xxx64(args);
+*/
+
+#if defined(SOLARIS2_5)
+/*
+** Special case: Solaris 2.5.1
+** Solaris starts to have 64-bit file I/O in 2.6.  We build on Solaris
+** 2.5.1 so that we can use the same binaries on both Solaris 2.5.1 and
+** 2.6.  At run time, we detect whether 64-bit file I/O is available by
+** looking up the 64-bit file function symbols in libc.  At build time,
+** we need to define the 64-bit file I/O datatypes that are compatible
+** with their definitions on Solaris 2.6.
+*/
+typedef PRInt64 off64_t;
+typedef PRUint64 ino64_t;
+typedef PRInt64 blkcnt64_t;
+struct stat64 {
+    dev_t st_dev;
+    long st_pad1[3];
+    ino64_t st_ino;
+    mode_t st_mode;
+    nlink_t st_nlink;
+    uid_t st_uid;
+    gid_t st_gid;
+    dev_t st_rdev;
+    long t_pad2[2];
+    off64_t st_size;
+    timestruc_t st_atim;
+    timestruc_t st_mtim;
+    timestruc_t st_ctim;
+    long st_blksize;
+    blkcnt64_t st_blocks;
+    char st_fstype[_ST_FSTYPSZ];
+    long st_pad4[8];
+};
+typedef struct stat64 _MDStat64;
+typedef off64_t _MDOff64_t;
+
+#elif defined(_PR_HAVE_OFF64_T)
+typedef struct stat64 _MDStat64;
+typedef off64_t _MDOff64_t;
+#elif defined(_PR_HAVE_LARGE_OFF_T)
+typedef struct stat _MDStat64;
+typedef off_t _MDOff64_t;
+#elif defined(_PR_NO_LARGE_FILES)
+typedef struct stat _MDStat64;
+typedef PRInt64 _MDOff64_t;
+#else
+#error "I don't know yet"
+#endif
+
+typedef PRIntn (*_MD_Fstat64)(PRIntn osfd, _MDStat64 *buf);
+typedef PRIntn (*_MD_Open64)(const char *path, int oflag, ...);
+typedef PRIntn (*_MD_Stat64)(const char *path, _MDStat64 *buf);
+typedef _MDOff64_t (*_MD_Lseek64)(PRIntn osfd, _MDOff64_t, PRIntn whence);
+typedef void* (*_MD_Mmap64)(
+    void *addr, PRSize len, PRIntn prot, PRIntn flags,
+    PRIntn fildes, _MDOff64_t offset);
+struct _MD_IOVector
+{
+    _MD_Open64 _open64;
+    _MD_Mmap64 _mmap64;
+    _MD_Stat64 _stat64;
+    _MD_Fstat64 _fstat64;
+    _MD_Lseek64 _lseek64;
+};
+extern struct _MD_IOVector _md_iovector;
+
+#endif /* prunixos_h___ */
diff --git a/nsprpub/pr/include/md/_unixware.cfg b/nsprpub/pr/include/md/_unixware.cfg
new file mode 100644
index 0000000000..0fa8dfc9b5
--- /dev/null
+++ b/nsprpub/pr/include/md/_unixware.cfg
@@ -0,0 +1,108 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef UNIXWARE
+#define UNIXWARE
+#endif
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#undef	HAVE_LONG_LONG
+#undef	HAVE_ALIGNED_DOUBLES
+#undef	HAVE_ALIGNED_LONGLONGS
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+
+#define _PR_POLL_BACKCOMPAT
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_unixware.h b/nsprpub/pr/include/md/_unixware.h
new file mode 100644
index 0000000000..06667b2988
--- /dev/null
+++ b/nsprpub/pr/include/md/_unixware.h
@@ -0,0 +1,186 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_unixware_defs_h___
+#define nspr_unixware_defs_h___
+
+/*
+ * Internal configuration macros
+ */
+
+#define PR_LINKER_ARCH  "unixware"
+#define _PR_SI_SYSNAME      "UnixWare"
+#define _PR_SI_ARCHITECTURE "x86"
+#define PR_DLL_SUFFIX       ".so"
+
+#define _PR_VMBASE      0x30000000
+#define _PR_STACK_VMBASE    0x50000000
+#define _MD_DEFAULT_STACK_SIZE  65536L
+#define _MD_MMAP_FLAGS          MAP_PRIVATE
+
+#ifndef HAVE_WEAK_IO_SYMBOLS
+#define HAVE_WEAK_IO_SYMBOLS
+#endif
+#define _PR_POLL_AVAILABLE
+#define _PR_USE_POLL
+#define _PR_STAT_HAS_ST_ATIM_UNION
+
+#undef  HAVE_STACK_GROWING_UP
+#define HAVE_NETCONFIG
+#define HAVE_DLL
+#define USE_DLFCN
+#define HAVE_STRERROR
+#define NEED_STRFTIME_LOCK
+#define NEED_TIME_R
+#define _PR_NEED_STRCASECMP
+
+#define USE_SETJMP
+
+#include <setjmp.h>
+
+#define _SETJMP setjmp
+#define _LONGJMP longjmp
+#define _PR_CONTEXT_TYPE         jmp_buf
+#define _MD_GET_SP(_t)           (_t)->md.context[4]
+#define _PR_NUM_GCREGS  _JBLEN
+
+#define CONTEXT(_th) ((_th)->md.context)
+
+/*
+** Initialize the thread context preparing it to execute _main.
+*/
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
+{                                 \
+    *status = PR_TRUE; \
+    if(_SETJMP(CONTEXT(_thread))) (*_main)(); \
+    _MD_GET_SP(_thread) = (int) ((_sp) - 128); \
+}
+
+#define _MD_SWITCH_CONTEXT(_thread)  \
+    if (!_SETJMP(CONTEXT(_thread))) { \
+    (_thread)->md.errcode = errno;  \
+    _PR_Schedule();          \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread) \
+{                    \
+    errno = (_thread)->md.errcode;       \
+    _MD_SET_CURRENT_THREAD(_thread); \
+    _LONGJMP(CONTEXT(_thread), 1);    \
+}
+
+/* Machine-dependent (MD) data structures.
+ * Don't use SVR4 native threads (yet).
+ */
+
+struct _MDThread {
+    _PR_CONTEXT_TYPE context;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+            fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+    struct pollfd *ioq_pollfds;
+    int ioq_pollfds_size;
+#endif  /* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)           ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)      ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)      ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)      ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)      ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+    struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock) PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+/*
+ * The following are copied from _sunos.h, _aix.h.  This means
+ * some of them should probably be moved into _unixos.h.  But
+ * _irix.h seems to be quite different in regard to these macros.
+ */
+#define _MD_INTERVAL_USE_GTOD
+
+#define _MD_EARLY_INIT      _MD_EarlyInit
+#define _MD_FINAL_INIT      _PR_UnixInit
+#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD         _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)
+#define _MD_RESUME_THREAD(thread)
+#define _MD_CLEAN_THREAD(_thread)
+
+/*
+ * We wrapped the select() call.  _MD_SELECT refers to the built-in,
+ * unwrapped version.
+ */
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/select.h>
+extern int _select(int nfds, fd_set *readfds, fd_set *writefds,
+                   fd_set *execptfds, struct timeval *timeout);
+#define _MD_SELECT _select
+
+#define _MD_POLL _poll
+extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
+
+#endif /* nspr_unixware_defs_h___ */
diff --git a/nsprpub/pr/include/md/_unixware7.cfg b/nsprpub/pr/include/md/_unixware7.cfg
new file mode 100644
index 0000000000..33ce83bda1
--- /dev/null
+++ b/nsprpub/pr/include/md/_unixware7.cfg
@@ -0,0 +1,112 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_UNIX
+#define XP_UNIX
+#endif
+
+#ifndef UNIXWARE
+#define UNIXWARE
+#endif
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#ifndef HAVE_LONG_LONG
+#define HAVE_LONG_LONG
+#endif
+#undef	HAVE_ALIGNED_DOUBLES
+#undef	HAVE_ALIGNED_LONGLONGS
+
+#define PR_AF_INET6 27  /* same as AF_INET6 */
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_DOUBLE 8
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_WORD_LOG2   2
+#define PR_BYTES_PER_DWORD_LOG2  3
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_DOUBLE  64
+#define PR_BITS_PER_WORD    32
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_DOUBLE_LOG2 6
+#define PR_BITS_PER_WORD_LOG2   5
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   4
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+
+#define _PR_POLL_BACKCOMPAT
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE		PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT 	PR_BYTES_PER_SHORT
+#define BYTES_PER_INT 		PR_BYTES_PER_INT
+#define BYTES_PER_INT64		PR_BYTES_PER_INT64
+#define BYTES_PER_LONG		PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT		PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE	PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD		PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD		PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE		PR_BITS_PER_BYTE
+#define BITS_PER_SHORT		PR_BITS_PER_SHORT
+#define BITS_PER_INT		PR_BITS_PER_INT
+#define BITS_PER_INT64		PR_BITS_PER_INT64
+#define BITS_PER_LONG		PR_BITS_PER_LONG
+#define BITS_PER_FLOAT		PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE		PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD		PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2	PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2	PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2	PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2	PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2	PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2	PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2 	PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2	PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT		PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT		PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG		PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64		PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT		PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE		PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER	PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD		PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2	PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2	PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2	PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_win32_errors.h b/nsprpub/pr/include/md/_win32_errors.h
new file mode 100644
index 0000000000..d267d8a28c
--- /dev/null
+++ b/nsprpub/pr/include/md/_win32_errors.h
@@ -0,0 +1,122 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_win32_errors_h___
+#define nspr_win32_errors_h___
+
+#include <windows.h>
+#include <winsock.h>
+#include <errno.h>
+
+
+extern void _MD_win32_map_default_error(PRInt32 err);
+#define _PR_MD_MAP_DEFAULT_ERROR    _MD_win32_map_default_error
+
+extern void _MD_win32_map_opendir_error(PRInt32 err);
+#define _PR_MD_MAP_OPENDIR_ERROR    _MD_win32_map_opendir_error
+
+extern void _MD_win32_map_closedir_error(PRInt32 err);
+#define _PR_MD_MAP_CLOSEDIR_ERROR   _MD_win32_map_closedir_error
+
+extern void _MD_unix_readdir_error(PRInt32 err);
+#define _PR_MD_MAP_READDIR_ERROR    _MD_unix_readdir_error
+
+extern void _MD_win32_map_delete_error(PRInt32 err);
+#define _PR_MD_MAP_DELETE_ERROR _MD_win32_map_delete_error
+
+extern void _MD_win32_map_stat_error(PRInt32 err);
+#define _PR_MD_MAP_STAT_ERROR   _MD_win32_map_stat_error
+
+extern void _MD_win32_map_fstat_error(PRInt32 err);
+#define _PR_MD_MAP_FSTAT_ERROR  _MD_win32_map_fstat_error
+
+extern void _MD_win32_map_rename_error(PRInt32 err);
+#define _PR_MD_MAP_RENAME_ERROR _MD_win32_map_rename_error
+
+extern void _MD_win32_map_access_error(PRInt32 err);
+#define _PR_MD_MAP_ACCESS_ERROR _MD_win32_map_access_error
+
+extern void _MD_win32_map_mkdir_error(PRInt32 err);
+#define _PR_MD_MAP_MKDIR_ERROR  _MD_win32_map_mkdir_error
+
+extern void _MD_win32_map_rmdir_error(PRInt32 err);
+#define _PR_MD_MAP_RMDIR_ERROR  _MD_win32_map_rmdir_error
+
+extern void _MD_win32_map_read_error(PRInt32 err);
+#define _PR_MD_MAP_READ_ERROR   _MD_win32_map_read_error
+
+extern void _MD_win32_map_transmitfile_error(PRInt32 err);
+#define _PR_MD_MAP_TRANSMITFILE_ERROR   _MD_win32_map_transmitfile_error
+
+extern void _MD_win32_map_write_error(PRInt32 err);
+#define _PR_MD_MAP_WRITE_ERROR  _MD_win32_map_write_error
+
+extern void _MD_win32_map_lseek_error(PRInt32 err);
+#define _PR_MD_MAP_LSEEK_ERROR  _MD_win32_map_lseek_error
+
+extern void _MD_win32_map_fsync_error(PRInt32 err);
+#define _PR_MD_MAP_FSYNC_ERROR  _MD_win32_map_fsync_error
+
+extern void _MD_win32_map_close_error(PRInt32 err);
+#define _PR_MD_MAP_CLOSE_ERROR  _MD_win32_map_close_error
+
+extern void _MD_win32_map_socket_error(PRInt32 err);
+#define _PR_MD_MAP_SOCKET_ERROR _MD_win32_map_socket_error
+
+extern void _MD_win32_map_recv_error(PRInt32 err);
+#define _PR_MD_MAP_RECV_ERROR   _MD_win32_map_recv_error
+
+extern void _MD_win32_map_recvfrom_error(PRInt32 err);
+#define _PR_MD_MAP_RECVFROM_ERROR   _MD_win32_map_recvfrom_error
+
+extern void _MD_win32_map_send_error(PRInt32 err);
+#define _PR_MD_MAP_SEND_ERROR   _MD_win32_map_send_error
+
+extern void _MD_win32_map_sendto_error(PRInt32 err);
+#define _PR_MD_MAP_SENDTO_ERROR _MD_win32_map_sendto_error
+
+extern void _MD_win32_map_accept_error(PRInt32 err);
+#define _PR_MD_MAP_ACCEPT_ERROR _MD_win32_map_accept_error
+
+extern void _MD_win32_map_acceptex_error(PRInt32 err);
+#define _PR_MD_MAP_ACCEPTEX_ERROR   _MD_win32_map_acceptex_error
+
+extern void _MD_win32_map_connect_error(PRInt32 err);
+#define _PR_MD_MAP_CONNECT_ERROR    _MD_win32_map_connect_error
+
+extern void _MD_win32_map_bind_error(PRInt32 err);
+#define _PR_MD_MAP_BIND_ERROR   _MD_win32_map_bind_error
+
+extern void _MD_win32_map_listen_error(PRInt32 err);
+#define _PR_MD_MAP_LISTEN_ERROR _MD_win32_map_listen_error
+
+extern void _MD_win32_map_shutdown_error(PRInt32 err);
+#define _PR_MD_MAP_SHUTDOWN_ERROR   _MD_win32_map_shutdown_error
+
+extern void _MD_win32_map_getsockname_error(PRInt32 err);
+#define _PR_MD_MAP_GETSOCKNAME_ERROR    _MD_win32_map_getsockname_error
+
+extern void _MD_win32_map_getpeername_error(PRInt32 err);
+#define _PR_MD_MAP_GETPEERNAME_ERROR    _MD_win32_map_getpeername_error
+
+extern void _MD_win32_map_getsockopt_error(PRInt32 err);
+#define _PR_MD_MAP_GETSOCKOPT_ERROR _MD_win32_map_getsockopt_error
+
+extern void _MD_win32_map_setsockopt_error(PRInt32 err);
+#define _PR_MD_MAP_SETSOCKOPT_ERROR _MD_win32_map_setsockopt_error
+
+extern void _MD_win32_map_open_error(PRInt32 err);
+#define _PR_MD_MAP_OPEN_ERROR   _MD_win32_map_open_error
+
+extern void _MD_win32_map_gethostname_error(PRInt32 err);
+#define _PR_MD_MAP_GETHOSTNAME_ERROR    _MD_win32_map_gethostname_error
+
+extern void _MD_win32_map_select_error(PRInt32 err);
+#define _PR_MD_MAP_SELECT_ERROR _MD_win32_map_select_error
+
+extern void _MD_win32_map_lockf_error(int err);
+#define _PR_MD_MAP_LOCKF_ERROR  _MD_win32_map_lockf_error
+
+#endif /* nspr_win32_errors_h___ */
diff --git a/nsprpub/pr/include/md/_win95.cfg b/nsprpub/pr/include/md/_win95.cfg
new file mode 100644
index 0000000000..7c379fce70
--- /dev/null
+++ b/nsprpub/pr/include/md/_win95.cfg
@@ -0,0 +1,321 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_PC
+#define XP_PC
+#endif
+
+#ifndef WIN32
+#define WIN32
+#endif
+
+#ifndef WIN95
+#define WIN95
+#endif
+
+#define PR_AF_INET6 23  /* same as AF_INET6 */
+
+#if defined(_M_IX86) || defined(_X86_)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_WORD	4
+#define PR_BYTES_PER_DWORD	8
+#define PR_BYTES_PER_DOUBLE 8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_WORD	32
+#define PR_BITS_PER_DWORD	64
+#define PR_BITS_PER_DOUBLE  64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_WORD_LOG2	5
+#define PR_BITS_PER_DWORD_LOG2	6
+#define PR_BITS_PER_DOUBLE_LOG2 6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_WORD	4
+#define PR_ALIGN_OF_DWORD	8
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+
+#define PR_BYTES_PER_WORD_LOG2	2
+#define PR_BYTES_PER_DWORD_LOG2	3
+
+#elif defined(_M_X64) || defined(_M_AMD64) || defined(_AMD64_)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_WORD	8
+#define PR_BYTES_PER_DWORD	8
+#define PR_BYTES_PER_DOUBLE 8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_WORD	64
+#define PR_BITS_PER_DWORD	64
+#define PR_BITS_PER_DOUBLE  64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_WORD_LOG2	6
+#define PR_BITS_PER_DWORD_LOG2	6
+#define PR_BITS_PER_DOUBLE_LOG2 6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_WORD	8
+#define PR_ALIGN_OF_DWORD	8
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+
+#define PR_BYTES_PER_WORD_LOG2	3
+#define PR_BYTES_PER_DWORD_LOG2	3
+
+#elif defined(_M_IA64) || defined(_IA64_)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_WORD	8
+#define PR_BYTES_PER_DWORD	8
+#define PR_BYTES_PER_DOUBLE 8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_WORD	64
+#define PR_BITS_PER_DWORD	64
+#define PR_BITS_PER_DOUBLE  64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_WORD_LOG2	6
+#define PR_BITS_PER_DWORD_LOG2	6
+#define PR_BITS_PER_DOUBLE_LOG2 6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_WORD	8
+#define PR_ALIGN_OF_DWORD	8
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+
+#define PR_BYTES_PER_WORD_LOG2	3
+#define PR_BYTES_PER_DWORD_LOG2	3
+
+#elif defined(_M_ARM) || defined(_ARM_)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_WORD   4
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_DOUBLE 8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_WORD    32
+#define PR_BITS_PER_DWORD   64
+#define PR_BITS_PER_DOUBLE  64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_WORD_LOG2   5
+#define PR_BITS_PER_DWORD_LOG2  6
+#define PR_BITS_PER_DOUBLE_LOG2 6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_WORD    4
+#define PR_ALIGN_OF_DWORD   8
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 4
+
+#define PR_BYTES_PER_WORD_LOG2  2
+#define PR_BYTES_PER_DWORD_LOG2 3
+
+#elif defined(_M_ARM64) || defined(_ARM64_)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_WORD	8
+#define PR_BYTES_PER_DWORD	8
+#define PR_BYTES_PER_DOUBLE 8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_WORD	64
+#define PR_BITS_PER_DWORD	64
+#define PR_BITS_PER_DOUBLE  64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_WORD_LOG2	6
+#define PR_BITS_PER_DWORD_LOG2	6
+#define PR_BITS_PER_DOUBLE_LOG2 6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_WORD	8
+#define PR_ALIGN_OF_DWORD	8
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+
+#define PR_BYTES_PER_WORD_LOG2	3
+#define PR_BYTES_PER_DWORD_LOG2	3
+
+#else /* defined(_M_IX86) || defined(_X86_) */
+
+#error unknown processor architecture
+
+#endif /* defined(_M_IX86) || defined(_X86_) */
+
+#ifndef HAVE_LONG_LONG
+#define HAVE_LONG_LONG
+#endif
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE      PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT     PR_BYTES_PER_SHORT
+#define BYTES_PER_INT       PR_BYTES_PER_INT
+#define BYTES_PER_INT64     PR_BYTES_PER_INT64
+#define BYTES_PER_LONG      PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT     PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE    PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD      PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD     PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE       PR_BITS_PER_BYTE
+#define BITS_PER_SHORT      PR_BITS_PER_SHORT
+#define BITS_PER_INT        PR_BITS_PER_INT
+#define BITS_PER_INT64      PR_BITS_PER_INT64
+#define BITS_PER_LONG       PR_BITS_PER_LONG
+#define BITS_PER_FLOAT      PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE     PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD       PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2  PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2 PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2   PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2 PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2  PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2 PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2    PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2  PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT      PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT        PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG       PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64      PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT      PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE     PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER    PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD       PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2		PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2    PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2    PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_win95.h b/nsprpub/pr/include/md/_win95.h
new file mode 100644
index 0000000000..281cd6f09d
--- /dev/null
+++ b/nsprpub/pr/include/md/_win95.h
@@ -0,0 +1,549 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_win95_defs_h___
+#define nspr_win95_defs_h___
+
+#include "prio.h"
+
+#include <windows.h>
+#include <winsock.h>
+#include <errno.h>
+
+/*
+ * Internal configuration macros
+ */
+
+#define PR_LINKER_ARCH      "win32"
+#define _PR_SI_SYSNAME        "WIN95"
+#if defined(_M_IX86) || defined(_X86_)
+#define _PR_SI_ARCHITECTURE   "x86"
+#elif defined(_M_X64) || defined(_M_AMD64) || defined(_AMD64_)
+#define _PR_SI_ARCHITECTURE   "x86-64"
+#elif defined(_M_IA64) || defined(_IA64_)
+#define _PR_SI_ARCHITECTURE   "ia64"
+#elif defined(_M_ARM) || defined(_ARM_)
+#define _PR_SI_ARCHITECTURE   "arm"
+#elif defined(_M_ARM64)
+#define _PR_SI_ARCHITECTURE   "aarch64"
+#else
+#error unknown processor architecture
+#endif
+
+#define HAVE_DLL
+#undef  HAVE_THREAD_AFFINITY
+#define _PR_HAVE_GETADDRINFO
+#define _PR_INET6_PROBE
+#ifndef _PR_INET6
+#define AF_INET6 23
+/* newer ws2tcpip.h provides these */
+#ifndef AI_CANONNAME
+#define AI_CANONNAME 0x2
+#define AI_NUMERICHOST 0x4
+#define NI_NUMERICHOST 0x02
+struct addrinfo {
+    int ai_flags;
+    int ai_family;
+    int ai_socktype;
+    int ai_protocol;
+    size_t ai_addrlen;
+    char *ai_canonname;
+    struct sockaddr *ai_addr;
+    struct addrinfo *ai_next;
+};
+#endif
+#define _PR_HAVE_MD_SOCKADDR_IN6
+/* isomorphic to struct in6_addr on Windows */
+struct _md_in6_addr {
+    union {
+        PRUint8  _S6_u8[16];
+        PRUint16 _S6_u16[8];
+    } _S6_un;
+};
+/* isomorphic to struct sockaddr_in6 on Windows */
+struct _md_sockaddr_in6 {
+    PRInt16 sin6_family;
+    PRUint16 sin6_port;
+    PRUint32 sin6_flowinfo;
+    struct _md_in6_addr sin6_addr;
+    PRUint32 sin6_scope_id;
+};
+#endif
+#define _PR_HAVE_THREADSAFE_GETHOST
+#define _PR_HAVE_ATOMIC_OPS
+#define PR_HAVE_WIN32_NAMED_SHARED_MEMORY
+
+/* --- Common User-Thread/Native-Thread Definitions --------------------- */
+
+/* --- Globals --- */
+extern struct PRLock                      *_pr_schedLock;
+
+/* --- Typedefs --- */
+typedef void (*FiberFunc)(void *);
+
+#define PR_NUM_GCREGS           8
+typedef PRInt32                 PR_CONTEXT_TYPE[PR_NUM_GCREGS];
+#define GC_VMBASE               0x40000000
+#define GC_VMLIMIT              0x00FFFFFF
+
+#define _MD_MAGIC_THREAD    0x22222222
+#define _MD_MAGIC_THREADSTACK   0x33333333
+#define _MD_MAGIC_SEGMENT   0x44444444
+#define _MD_MAGIC_DIR       0x55555555
+#define _MD_MAGIC_CV        0x66666666
+
+struct _MDCPU {
+    int              unused;
+};
+
+struct _MDThread {
+    HANDLE           blocked_sema;      /* Threads block on this when waiting
+                                         * for IO or CondVar.
+                                         */
+    PRBool           inCVWaitQueue;     /* PR_TRUE if the thread is in the
+                                         * wait queue of some cond var.
+                                         * PR_FALSE otherwise.  */
+    HANDLE           handle;            /* Win32 thread handle */
+    PRUint32         id;
+    void            *sp;                /* only valid when suspended */
+    PRUint32         magic;             /* for debugging */
+    PR_CONTEXT_TYPE  gcContext;         /* Thread context for GC */
+    struct PRThread *prev, *next;       /* used by the cvar wait queue to
+                                         * chain the PRThread structures
+                                         * together */
+    void (*start)(void *);              /* used by _PR_MD_CREATE_THREAD to
+                                         * pass its 'start' argument to
+                                         * pr_root. */
+};
+
+struct _MDThreadStack {
+    PRUint32           magic;          /* for debugging */
+};
+
+struct _MDSegment {
+    PRUint32           magic;          /* for debugging */
+};
+
+#undef PROFILE_LOCKS
+
+struct _MDDir {
+    HANDLE           d_hdl;
+    WIN32_FIND_DATAA d_entry;
+    PRBool           firstEntry;     /* Is this the entry returned
+                                      * by FindFirstFile()? */
+    PRUint32         magic;          /* for debugging */
+};
+
+#ifdef MOZ_UNICODE
+struct _MDDirUTF16 {
+    HANDLE           d_hdl;
+    WIN32_FIND_DATAW d_entry;
+    PRBool           firstEntry;     /* Is this the entry returned
+                                      * by FindFirstFileW()? */
+    PRUint32         magic;          /* for debugging */
+};
+#endif /* MOZ_UNICODE */
+
+struct _MDCVar {
+    PRUint32 magic;
+    struct PRThread *waitHead, *waitTail;  /* the wait queue: a doubly-
+                                            * linked list of threads
+                                            * waiting on this condition
+                                            * variable */
+    PRIntn nwait;                          /* number of threads in the
+                                            * wait queue */
+};
+
+#define _MD_CV_NOTIFIED_LENGTH 6
+typedef struct _MDNotified _MDNotified;
+struct _MDNotified {
+    PRIntn length;                     /* # of used entries in this
+                                        * structure */
+    struct {
+        struct _MDCVar *cv;            /* the condition variable notified */
+        PRIntn times;                  /* and the number of times notified */
+        struct PRThread *notifyHead;   /* list of threads to wake up */
+    } cv[_MD_CV_NOTIFIED_LENGTH];
+    _MDNotified *link;                 /* link to another of these, or NULL */
+};
+
+struct _MDLock {
+    CRITICAL_SECTION mutex;          /* this is recursive on NT */
+
+    /*
+     * When notifying cvars, there is no point in actually
+     * waking up the threads waiting on the cvars until we've
+     * released the lock.  So, we temporarily record the cvars.
+     * When doing an unlock, we'll then wake up the waiting threads.
+     */
+    struct _MDNotified notified;     /* array of conditions notified */
+#ifdef PROFILE_LOCKS
+    PRInt32 hitcount;
+    PRInt32 misscount;
+#endif
+};
+
+struct _MDSemaphore {
+    HANDLE           sem;
+};
+
+struct _MDFileDesc {
+    PROsfd osfd;     /* The osfd can come from one of three spaces:
+                      * - For stdin, stdout, and stderr, we are using
+                      *   the libc file handle (0, 1, 2), which is an int.
+                      * - For files and pipes, we are using Win32 HANDLE,
+                      *   which is a void*.
+                      * - For sockets, we are using Winsock SOCKET, which
+                      *   is a u_int.
+                      */
+};
+
+struct _MDProcess {
+    HANDLE handle;
+    DWORD id;
+};
+
+/* --- Misc stuff --- */
+#define _MD_GET_SP(thread)            (thread)->md.gcContext[6]
+
+/* --- NT security stuff --- */
+
+extern void _PR_NT_InitSids(void);
+extern void _PR_NT_FreeSids(void);
+extern PRStatus _PR_NT_MakeSecurityDescriptorACL(
+    PRIntn mode,
+    DWORD accessTable[],
+    PSECURITY_DESCRIPTOR *resultSD,
+    PACL *resultACL
+);
+extern void _PR_NT_FreeSecurityDescriptorACL(
+    PSECURITY_DESCRIPTOR pSD, PACL pACL);
+
+/* --- IO stuff --- */
+
+#define _MD_OPEN                      _PR_MD_OPEN
+#define _MD_OPEN_FILE                 _PR_MD_OPEN_FILE
+#define _MD_READ                      _PR_MD_READ
+#define _MD_WRITE                     _PR_MD_WRITE
+#define _MD_WRITEV                    _PR_MD_WRITEV
+#define _MD_LSEEK                     _PR_MD_LSEEK
+#define _MD_LSEEK64                   _PR_MD_LSEEK64
+extern PRInt32 _MD_CloseFile(PROsfd osfd);
+#define _MD_CLOSE_FILE                _MD_CloseFile
+#define _MD_GETFILEINFO               _PR_MD_GETFILEINFO
+#define _MD_GETFILEINFO64             _PR_MD_GETFILEINFO64
+#define _MD_GETOPENFILEINFO           _PR_MD_GETOPENFILEINFO
+#define _MD_GETOPENFILEINFO64         _PR_MD_GETOPENFILEINFO64
+#define _MD_STAT                      _PR_MD_STAT
+#define _MD_RENAME                    _PR_MD_RENAME
+#define _MD_ACCESS                    _PR_MD_ACCESS
+#define _MD_DELETE                    _PR_MD_DELETE
+#define _MD_MKDIR                     _PR_MD_MKDIR
+#define _MD_MAKE_DIR                  _PR_MD_MAKE_DIR
+#define _MD_RMDIR                     _PR_MD_RMDIR
+#define _MD_LOCKFILE                  _PR_MD_LOCKFILE
+#define _MD_TLOCKFILE                 _PR_MD_TLOCKFILE
+#define _MD_UNLOCKFILE                _PR_MD_UNLOCKFILE
+
+/* --- UTF16 IO stuff --- */
+#ifdef MOZ_UNICODE
+#define _MD_OPEN_FILE_UTF16           _PR_MD_OPEN_FILE_UTF16
+#define _MD_OPEN_DIR_UTF16            _PR_MD_OPEN_DIR_UTF16
+#define _MD_READ_DIR_UTF16            _PR_MD_READ_DIR_UTF16
+#define _MD_CLOSE_DIR_UTF16           _PR_MD_CLOSE_DIR_UTF16
+#define _MD_GETFILEINFO64_UTF16       _PR_MD_GETFILEINFO64_UTF16
+#endif /* MOZ_UNICODE */
+
+/* --- Socket IO stuff --- */
+extern void _PR_MD_InitSockets(void);
+extern void _PR_MD_CleanupSockets(void);
+#define _MD_EACCES                WSAEACCES
+#define _MD_EADDRINUSE            WSAEADDRINUSE
+#define _MD_EADDRNOTAVAIL         WSAEADDRNOTAVAIL
+#define _MD_EAFNOSUPPORT          WSAEAFNOSUPPORT
+#define _MD_EAGAIN                WSAEWOULDBLOCK
+#define _MD_EALREADY              WSAEALREADY
+#define _MD_EBADF                 WSAEBADF
+#define _MD_ECONNREFUSED          WSAECONNREFUSED
+#define _MD_ECONNRESET            WSAECONNRESET
+#define _MD_EFAULT                WSAEFAULT
+#define _MD_EINPROGRESS           WSAEINPROGRESS
+#define _MD_EINTR                 WSAEINTR
+#define _MD_EINVAL                EINVAL
+#define _MD_EISCONN               WSAEISCONN
+#define _MD_ENETUNREACH           WSAENETUNREACH
+#define _MD_ENOENT                ENOENT
+#define _MD_ENOTCONN              WSAENOTCONN
+#define _MD_ENOTSOCK              WSAENOTSOCK
+#define _MD_EOPNOTSUPP            WSAEOPNOTSUPP
+#define _MD_EWOULDBLOCK           WSAEWOULDBLOCK
+#define _MD_GET_SOCKET_ERROR()    WSAGetLastError()
+#define _MD_SET_SOCKET_ERROR(_err) WSASetLastError(_err)
+
+#define _MD_INIT_FILEDESC(fd)
+extern void _MD_MakeNonblock(PRFileDesc *f);
+#define _MD_MAKE_NONBLOCK             _MD_MakeNonblock
+#define _MD_INIT_FD_INHERITABLE       _PR_MD_INIT_FD_INHERITABLE
+#define _MD_QUERY_FD_INHERITABLE      _PR_MD_QUERY_FD_INHERITABLE
+#define _MD_SHUTDOWN                  _PR_MD_SHUTDOWN
+#define _MD_LISTEN                    _PR_MD_LISTEN
+extern PRInt32 _MD_CloseSocket(PROsfd osfd);
+#define _MD_CLOSE_SOCKET              _MD_CloseSocket
+#define _MD_SENDTO                    _PR_MD_SENDTO
+#ifdef _WIN64
+#define _MD_TCPSENDTO                 _PR_MD_TCPSENDTO
+#endif
+#define _MD_RECVFROM                  _PR_MD_RECVFROM
+#define _MD_SOCKETPAIR(s, type, proto, sv) -1
+#define _MD_GETSOCKNAME               _PR_MD_GETSOCKNAME
+#define _MD_GETPEERNAME               _PR_MD_GETPEERNAME
+#define _MD_GETSOCKOPT                _PR_MD_GETSOCKOPT
+#define _MD_SETSOCKOPT                _PR_MD_SETSOCKOPT
+#define _MD_SET_FD_INHERITABLE        _PR_MD_SET_FD_INHERITABLE
+#define _MD_SELECT                    select
+#define _MD_FSYNC                     _PR_MD_FSYNC
+#define READ_FD                       1
+#define WRITE_FD                      2
+
+#define _MD_INIT_ATOMIC()
+#if defined(_M_IX86) || defined(_X86_)
+#define _MD_ATOMIC_INCREMENT          _PR_MD_ATOMIC_INCREMENT
+#define _MD_ATOMIC_ADD                _PR_MD_ATOMIC_ADD
+#define _MD_ATOMIC_DECREMENT          _PR_MD_ATOMIC_DECREMENT
+#else /* non-x86 processors */
+#define _MD_ATOMIC_INCREMENT(x)       InterlockedIncrement((PLONG)x)
+#define _MD_ATOMIC_ADD(ptr,val)    (InterlockedExchangeAdd((PLONG)ptr, (LONG)val) + val)
+#define _MD_ATOMIC_DECREMENT(x)       InterlockedDecrement((PLONG)x)
+#endif /* x86 */
+#define _MD_ATOMIC_SET(x,y)           InterlockedExchange((PLONG)x, (LONG)y)
+
+#define _MD_INIT_IO                   _PR_MD_INIT_IO
+
+
+/* win95 doesn't have async IO */
+#define _MD_SOCKET                    _PR_MD_SOCKET
+extern PRInt32 _MD_SocketAvailable(PRFileDesc *fd);
+#define _MD_SOCKETAVAILABLE           _MD_SocketAvailable
+#define _MD_PIPEAVAILABLE             _PR_MD_PIPEAVAILABLE
+#define _MD_CONNECT                   _PR_MD_CONNECT
+extern PROsfd _MD_Accept(PRFileDesc *fd, PRNetAddr *raddr, PRUint32 *rlen,
+                         PRIntervalTime timeout);
+#define _MD_ACCEPT                    _MD_Accept
+#define _MD_BIND                      _PR_MD_BIND
+#define _MD_RECV                      _PR_MD_RECV
+#define _MD_SEND                      _PR_MD_SEND
+#define _MD_PR_POLL                   _PR_MD_PR_POLL
+
+/* --- Scheduler stuff --- */
+// #define _MD_PAUSE_CPU                 _PR_MD_PAUSE_CPU
+#define _MD_PAUSE_CPU
+
+/* --- DIR stuff --- */
+#define PR_DIRECTORY_SEPARATOR        '\\'
+#define PR_DIRECTORY_SEPARATOR_STR    "\\"
+#define PR_PATH_SEPARATOR       ';'
+#define PR_PATH_SEPARATOR_STR       ";"
+#define _MD_ERRNO()                   GetLastError()
+#define _MD_OPEN_DIR                  _PR_MD_OPEN_DIR
+#define _MD_CLOSE_DIR                 _PR_MD_CLOSE_DIR
+#define _MD_READ_DIR                  _PR_MD_READ_DIR
+
+/* --- Segment stuff --- */
+#define _MD_INIT_SEGS()
+#define _MD_ALLOC_SEGMENT(seg, size, vaddr)   0
+#define _MD_FREE_SEGMENT(seg)
+
+/* --- Environment Stuff --- */
+#define _MD_GET_ENV                 _PR_MD_GET_ENV
+#define _MD_PUT_ENV                 _PR_MD_PUT_ENV
+
+/* --- Threading Stuff --- */
+#define _MD_DEFAULT_STACK_SIZE            0
+#define _MD_INIT_THREAD             _PR_MD_INIT_THREAD
+#define _MD_INIT_ATTACHED_THREAD    _PR_MD_INIT_THREAD
+#define _MD_CREATE_THREAD           _PR_MD_CREATE_THREAD
+#define _MD_YIELD                   _PR_MD_YIELD
+#define _MD_SET_PRIORITY            _PR_MD_SET_PRIORITY
+#define _MD_SET_CURRENT_THREAD_NAME _PR_MD_SET_CURRENT_THREAD_NAME
+#define _MD_CLEAN_THREAD            _PR_MD_CLEAN_THREAD
+#define _MD_SETTHREADAFFINITYMASK   _PR_MD_SETTHREADAFFINITYMASK
+#define _MD_GETTHREADAFFINITYMASK   _PR_MD_GETTHREADAFFINITYMASK
+#define _MD_EXIT_THREAD             _PR_MD_EXIT_THREAD
+#define _MD_EXIT                    _PR_MD_EXIT
+#define _MD_SUSPEND_THREAD          _PR_MD_SUSPEND_THREAD
+#define _MD_RESUME_THREAD           _PR_MD_RESUME_THREAD
+#define _MD_SUSPEND_CPU             _PR_MD_SUSPEND_CPU
+#define _MD_RESUME_CPU              _PR_MD_RESUME_CPU
+#define _MD_BEGIN_SUSPEND_ALL()
+#define _MD_BEGIN_RESUME_ALL()
+#define _MD_END_SUSPEND_ALL()
+#define _MD_END_RESUME_ALL()
+
+/* --- Lock stuff --- */
+#define _PR_LOCK                      _MD_LOCK
+#define _PR_UNLOCK                    _MD_UNLOCK
+
+#define _MD_NEW_LOCK                  _PR_MD_NEW_LOCK
+#define _MD_FREE_LOCK(lock)           DeleteCriticalSection(&((lock)->mutex))
+#define _MD_LOCK(lock)                EnterCriticalSection(&((lock)->mutex))
+#define _MD_TEST_AND_LOCK(lock)       (EnterCriticalSection(&((lock)->mutex)),0)
+#define _MD_UNLOCK                    _PR_MD_UNLOCK
+
+/* --- lock and cv waiting --- */
+#define _MD_WAIT                      _PR_MD_WAIT
+#define _MD_WAKEUP_WAITER             _PR_MD_WAKEUP_WAITER
+
+/* --- CVar ------------------- */
+#define _MD_WAIT_CV                   _PR_MD_WAIT_CV
+#define _MD_NEW_CV                    _PR_MD_NEW_CV
+#define _MD_FREE_CV                   _PR_MD_FREE_CV
+#define _MD_NOTIFY_CV                 _PR_MD_NOTIFY_CV
+#define _MD_NOTIFYALL_CV              _PR_MD_NOTIFYALL_CV
+
+/* XXXMB- the IOQ stuff is certainly not working correctly yet. */
+// extern  struct _MDLock              _pr_ioq_lock;
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+
+/* --- Initialization stuff --- */
+#define _MD_START_INTERRUPTS()
+#define _MD_STOP_INTERRUPTS()
+#define _MD_DISABLE_CLOCK_INTERRUPTS()
+#define _MD_ENABLE_CLOCK_INTERRUPTS()
+#define _MD_BLOCK_CLOCK_INTERRUPTS()
+#define _MD_UNBLOCK_CLOCK_INTERRUPTS()
+#define _MD_EARLY_INIT                _PR_MD_EARLY_INIT
+#define _MD_FINAL_INIT()
+#define _MD_EARLY_CLEANUP()
+#define _MD_INIT_CPUS()
+#define _MD_INIT_RUNNING_CPU(cpu)
+
+struct PRProcess;
+struct PRProcessAttr;
+
+#define _MD_CREATE_PROCESS _PR_CreateWindowsProcess
+extern struct PRProcess * _PR_CreateWindowsProcess(
+    const char *path,
+    char *const *argv,
+    char *const *envp,
+    const struct PRProcessAttr *attr
+);
+
+#define _MD_DETACH_PROCESS _PR_DetachWindowsProcess
+extern PRStatus _PR_DetachWindowsProcess(struct PRProcess *process);
+
+/* --- Wait for a child process to terminate --- */
+#define _MD_WAIT_PROCESS _PR_WaitWindowsProcess
+extern PRStatus _PR_WaitWindowsProcess(struct PRProcess *process,
+                                       PRInt32 *exitCode);
+
+#define _MD_KILL_PROCESS _PR_KillWindowsProcess
+extern PRStatus _PR_KillWindowsProcess(struct PRProcess *process);
+
+#define _MD_CLEANUP_BEFORE_EXIT           _PR_MD_CLEANUP_BEFORE_EXIT
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
+    PR_BEGIN_MACRO \
+    *status = PR_TRUE; \
+    PR_END_MACRO
+#define _MD_SWITCH_CONTEXT
+#define _MD_RESTORE_CONTEXT
+
+/* --- Intervals --- */
+#define _MD_INTERVAL_INIT                 _PR_MD_INTERVAL_INIT
+#define _MD_GET_INTERVAL                  _PR_MD_GET_INTERVAL
+#define _MD_INTERVAL_PER_SEC              _PR_MD_INTERVAL_PER_SEC
+#define _MD_INTERVAL_PER_MILLISEC()       (_PR_MD_INTERVAL_PER_SEC() / 1000)
+#define _MD_INTERVAL_PER_MICROSEC()       (_PR_MD_INTERVAL_PER_SEC() / 1000000)
+
+/* --- Time --- */
+extern void _PR_FileTimeToPRTime(const FILETIME *filetime, PRTime *prtm);
+
+#ifdef WINCE
+extern void _MD_InitTime(void);
+extern void _MD_CleanupTime(void);
+#endif
+
+/* --- Native-Thread Specific Definitions ------------------------------- */
+
+extern struct PRThread * _MD_CURRENT_THREAD(void);
+
+#ifdef _PR_USE_STATIC_TLS
+extern __declspec(thread) struct PRThread *_pr_currentThread;
+#define _MD_GET_ATTACHED_THREAD() _pr_currentThread
+#define _MD_SET_CURRENT_THREAD(_thread) (_pr_currentThread = (_thread))
+
+extern __declspec(thread) struct PRThread *_pr_thread_last_run;
+#define _MD_LAST_THREAD() _pr_thread_last_run
+#define _MD_SET_LAST_THREAD(_thread) (_pr_thread_last_run = 0)
+
+extern __declspec(thread) struct _PRCPU *_pr_currentCPU;
+#define _MD_CURRENT_CPU() _pr_currentCPU
+#define _MD_SET_CURRENT_CPU(_cpu) (_pr_currentCPU = 0)
+#else /* _PR_USE_STATIC_TLS */
+extern DWORD _pr_currentThreadIndex;
+#define _MD_GET_ATTACHED_THREAD() ((PRThread *) TlsGetValue(_pr_currentThreadIndex))
+#define _MD_SET_CURRENT_THREAD(_thread) TlsSetValue(_pr_currentThreadIndex, (_thread))
+
+extern DWORD _pr_lastThreadIndex;
+#define _MD_LAST_THREAD() ((PRThread *) TlsGetValue(_pr_lastThreadIndex))
+#define _MD_SET_LAST_THREAD(_thread) TlsSetValue(_pr_lastThreadIndex, 0)
+
+extern DWORD _pr_currentCPUIndex;
+#define _MD_CURRENT_CPU() ((struct _PRCPU *) TlsGetValue(_pr_currentCPUIndex))
+#define _MD_SET_CURRENT_CPU(_cpu) TlsSetValue(_pr_currentCPUIndex, 0)
+#endif /* _PR_USE_STATIC_TLS */
+
+/* --- Scheduler stuff --- */
+#define LOCK_SCHEDULER()                 0
+#define UNLOCK_SCHEDULER()               0
+#define _PR_LockSched()                  0
+#define _PR_UnlockSched()                0
+
+/* --- Initialization stuff --- */
+#define _MD_INIT_LOCKS                   _PR_MD_INIT_LOCKS
+
+/* --- Stack stuff --- */
+#define _MD_INIT_STACK(stack, redzone)
+#define _MD_CLEAR_STACK(stack)
+
+/* --- Memory-mapped files stuff --- */
+
+struct _MDFileMap {
+    HANDLE hFileMap;
+    DWORD dwAccess;
+};
+
+extern PRStatus _MD_CreateFileMap(struct PRFileMap *fmap, PRInt64 size);
+#define _MD_CREATE_FILE_MAP _MD_CreateFileMap
+
+extern PRInt32 _MD_GetMemMapAlignment(void);
+#define _MD_GET_MEM_MAP_ALIGNMENT _MD_GetMemMapAlignment
+
+extern void * _MD_MemMap(struct PRFileMap *fmap, PRInt64 offset,
+                         PRUint32 len);
+#define _MD_MEM_MAP _MD_MemMap
+
+extern PRStatus _MD_MemUnmap(void *addr, PRUint32 size);
+#define _MD_MEM_UNMAP _MD_MemUnmap
+
+extern PRStatus _MD_CloseFileMap(struct PRFileMap *fmap);
+#define _MD_CLOSE_FILE_MAP _MD_CloseFileMap
+
+extern PRStatus _MD_SyncMemMap(
+    PRFileDesc *fd,
+    void *addr,
+    PRUint32 len);
+#define _MD_SYNC_MEM_MAP _MD_SyncMemMap
+
+/* --- Named semaphores stuff --- */
+#define _PR_HAVE_NAMED_SEMAPHORES
+#define _MD_OPEN_SEMAPHORE            _PR_MD_OPEN_SEMAPHORE
+#define _MD_WAIT_SEMAPHORE            _PR_MD_WAIT_SEMAPHORE
+#define _MD_POST_SEMAPHORE            _PR_MD_POST_SEMAPHORE
+#define _MD_CLOSE_SEMAPHORE           _PR_MD_CLOSE_SEMAPHORE
+#define _MD_DELETE_SEMAPHORE(name)    PR_SUCCESS  /* no op */
+
+#endif /* nspr_win32_defs_h___ */
diff --git a/nsprpub/pr/include/md/_winnt.cfg b/nsprpub/pr/include/md/_winnt.cfg
new file mode 100644
index 0000000000..e2a277fdcd
--- /dev/null
+++ b/nsprpub/pr/include/md/_winnt.cfg
@@ -0,0 +1,224 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#ifndef nspr_cpucfg___
+#define nspr_cpucfg___
+
+#ifndef XP_PC
+#define XP_PC
+#endif
+
+#ifndef WIN32
+#define WIN32
+#endif
+
+#ifndef WINNT
+#define WINNT
+#endif
+
+#define PR_AF_INET6 23  /* same as AF_INET6 */
+
+#if defined(_M_IX86) || defined(_X86_)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_WORD	4
+#define PR_BYTES_PER_DWORD	8
+#define PR_BYTES_PER_DOUBLE 8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_WORD	32
+#define PR_BITS_PER_DWORD	64
+#define PR_BITS_PER_DOUBLE  64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_WORD_LOG2	5
+#define PR_BITS_PER_DWORD_LOG2	6
+#define PR_BITS_PER_DOUBLE_LOG2 6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_WORD	4
+#define PR_ALIGN_OF_DWORD	8
+#define PR_ALIGN_OF_DOUBLE  4
+#define PR_ALIGN_OF_POINTER 4
+
+#define PR_BYTES_PER_WORD_LOG2	2
+#define PR_BYTES_PER_DWORD_LOG2	2
+
+#elif defined(_M_X64) || defined(_M_AMD64) || defined(_AMD64_)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_DOUBLE 8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_WORD    64
+#define PR_BITS_PER_DWORD   64
+#define PR_BITS_PER_DOUBLE  64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_WORD_LOG2	6
+#define PR_BITS_PER_DWORD_LOG2	6
+#define PR_BITS_PER_DOUBLE_LOG2 6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_WORD    8
+#define PR_ALIGN_OF_DWORD   8
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+
+#define PR_BYTES_PER_WORD_LOG2	3
+#define PR_BYTES_PER_DWORD_LOG2	3
+
+#elif defined(_M_IA64) || defined(_IA64_)
+
+#define IS_LITTLE_ENDIAN 1
+#undef  IS_BIG_ENDIAN
+#define IS_64
+
+#define PR_BYTES_PER_BYTE   1
+#define PR_BYTES_PER_SHORT  2
+#define PR_BYTES_PER_INT    4
+#define PR_BYTES_PER_INT64  8
+#define PR_BYTES_PER_LONG   4
+#define PR_BYTES_PER_FLOAT  4
+#define PR_BYTES_PER_WORD   8
+#define PR_BYTES_PER_DWORD  8
+#define PR_BYTES_PER_DOUBLE 8
+
+#define PR_BITS_PER_BYTE    8
+#define PR_BITS_PER_SHORT   16
+#define PR_BITS_PER_INT     32
+#define PR_BITS_PER_INT64   64
+#define PR_BITS_PER_LONG    32
+#define PR_BITS_PER_FLOAT   32
+#define PR_BITS_PER_WORD    64
+#define PR_BITS_PER_DWORD   64
+#define PR_BITS_PER_DOUBLE  64
+
+#define PR_BITS_PER_BYTE_LOG2   3
+#define PR_BITS_PER_SHORT_LOG2  4
+#define PR_BITS_PER_INT_LOG2    5
+#define PR_BITS_PER_INT64_LOG2  6
+#define PR_BITS_PER_LONG_LOG2   5
+#define PR_BITS_PER_FLOAT_LOG2  5
+#define PR_BITS_PER_WORD_LOG2	6
+#define PR_BITS_PER_DWORD_LOG2	6
+#define PR_BITS_PER_DOUBLE_LOG2 6
+
+#define PR_ALIGN_OF_SHORT   2
+#define PR_ALIGN_OF_INT     4
+#define PR_ALIGN_OF_LONG    4
+#define PR_ALIGN_OF_INT64   8
+#define PR_ALIGN_OF_FLOAT   4
+#define PR_ALIGN_OF_WORD    8
+#define PR_ALIGN_OF_DWORD   8
+#define PR_ALIGN_OF_DOUBLE  8
+#define PR_ALIGN_OF_POINTER 8
+
+#define PR_BYTES_PER_WORD_LOG2	3
+#define PR_BYTES_PER_DWORD_LOG2	3
+
+#else /* defined(_M_IX86) || defined(_X86_) */
+
+#error unknown processor architecture
+
+#endif /* defined(_M_IX86) || defined(_X86_) */
+
+#ifndef HAVE_LONG_LONG
+#define HAVE_LONG_LONG
+#endif
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#define BYTES_PER_BYTE      PR_BYTES_PER_BYTE
+#define BYTES_PER_SHORT     PR_BYTES_PER_SHORT
+#define BYTES_PER_INT       PR_BYTES_PER_INT
+#define BYTES_PER_INT64     PR_BYTES_PER_INT64
+#define BYTES_PER_LONG      PR_BYTES_PER_LONG
+#define BYTES_PER_FLOAT     PR_BYTES_PER_FLOAT
+#define BYTES_PER_DOUBLE    PR_BYTES_PER_DOUBLE
+#define BYTES_PER_WORD      PR_BYTES_PER_WORD
+#define BYTES_PER_DWORD     PR_BYTES_PER_DWORD
+
+#define BITS_PER_BYTE       PR_BITS_PER_BYTE
+#define BITS_PER_SHORT      PR_BITS_PER_SHORT
+#define BITS_PER_INT        PR_BITS_PER_INT
+#define BITS_PER_INT64      PR_BITS_PER_INT64
+#define BITS_PER_LONG       PR_BITS_PER_LONG
+#define BITS_PER_FLOAT      PR_BITS_PER_FLOAT
+#define BITS_PER_DOUBLE     PR_BITS_PER_DOUBLE
+#define BITS_PER_WORD       PR_BITS_PER_WORD
+
+#define BITS_PER_BYTE_LOG2  PR_BITS_PER_BYTE_LOG2
+#define BITS_PER_SHORT_LOG2 PR_BITS_PER_SHORT_LOG2
+#define BITS_PER_INT_LOG2   PR_BITS_PER_INT_LOG2
+#define BITS_PER_INT64_LOG2 PR_BITS_PER_INT64_LOG2
+#define BITS_PER_LONG_LOG2  PR_BITS_PER_LONG_LOG2
+#define BITS_PER_FLOAT_LOG2 PR_BITS_PER_FLOAT_LOG2
+#define BITS_PER_DOUBLE_LOG2    PR_BITS_PER_DOUBLE_LOG2
+#define BITS_PER_WORD_LOG2  PR_BITS_PER_WORD_LOG2
+
+#define ALIGN_OF_SHORT      PR_ALIGN_OF_SHORT
+#define ALIGN_OF_INT        PR_ALIGN_OF_INT
+#define ALIGN_OF_LONG       PR_ALIGN_OF_LONG
+#define ALIGN_OF_INT64      PR_ALIGN_OF_INT64
+#define ALIGN_OF_FLOAT      PR_ALIGN_OF_FLOAT
+#define ALIGN_OF_DOUBLE     PR_ALIGN_OF_DOUBLE
+#define ALIGN_OF_POINTER    PR_ALIGN_OF_POINTER
+#define ALIGN_OF_WORD       PR_ALIGN_OF_WORD
+
+#define BYTES_PER_WORD_LOG2		PR_BYTES_PER_WORD_LOG2
+#define BYTES_PER_DWORD_LOG2    PR_BYTES_PER_DWORD_LOG2
+#define WORDS_PER_DWORD_LOG2    PR_WORDS_PER_DWORD_LOG2
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#endif /* nspr_cpucfg___ */
diff --git a/nsprpub/pr/include/md/_winnt.h b/nsprpub/pr/include/md/_winnt.h
new file mode 100644
index 0000000000..faed03ec83
--- /dev/null
+++ b/nsprpub/pr/include/md/_winnt.h
@@ -0,0 +1,599 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_win32_defs_h___
+#define nspr_win32_defs_h___
+
+/* Need to force service-pack 3 extensions to be defined by
+** setting _WIN32_WINNT to NT 4.0 for winsock.h, winbase.h, winnt.h.
+*/
+#ifndef  _WIN32_WINNT
+#define _WIN32_WINNT 0x0400
+#elif   (_WIN32_WINNT < 0x0400)
+#undef  _WIN32_WINNT
+#define _WIN32_WINNT 0x0400
+#endif /* _WIN32_WINNT */
+
+#include <windows.h>
+#include <winsock.h>
+#ifdef __MINGW32__
+#include <mswsock.h>
+#endif
+#include <errno.h>
+
+#include "prio.h"
+#include "prclist.h"
+
+/*
+ * Internal configuration macros
+ */
+
+#define PR_LINKER_ARCH      "win32"
+#define _PR_SI_SYSNAME        "WINNT"
+#if defined(_M_IX86) || defined(_X86_)
+#define _PR_SI_ARCHITECTURE   "x86"
+#elif defined(_M_X64) || defined(_M_AMD64) || defined(_AMD64_)
+#define _PR_SI_ARCHITECTURE   "x86-64"
+#elif defined(_M_IA64) || defined(_IA64_)
+#define _PR_SI_ARCHITECTURE   "ia64"
+#else
+#error unknown processor architecture
+#endif
+
+#define HAVE_DLL
+#define HAVE_CUSTOM_USER_THREADS
+#define HAVE_THREAD_AFFINITY
+#define _PR_HAVE_GETADDRINFO
+#define _PR_INET6_PROBE
+#ifndef _PR_INET6
+#define AF_INET6 23
+/* newer ws2tcpip.h provides these */
+#ifndef AI_CANONNAME
+#define AI_CANONNAME 0x2
+#define AI_NUMERICHOST 0x4
+#define NI_NUMERICHOST 0x02
+struct addrinfo {
+    int ai_flags;
+    int ai_family;
+    int ai_socktype;
+    int ai_protocol;
+    size_t ai_addrlen;
+    char *ai_canonname;
+    struct sockaddr *ai_addr;
+    struct addrinfo *ai_next;
+};
+#endif
+#define _PR_HAVE_MD_SOCKADDR_IN6
+/* isomorphic to struct in6_addr on Windows */
+struct _md_in6_addr {
+    union {
+        PRUint8  _S6_u8[16];
+        PRUint16 _S6_u16[8];
+    } _S6_un;
+};
+/* isomorphic to struct sockaddr_in6 on Windows */
+struct _md_sockaddr_in6 {
+    PRInt16 sin6_family;
+    PRUint16 sin6_port;
+    PRUint32 sin6_flowinfo;
+    struct _md_in6_addr sin6_addr;
+    PRUint32 sin6_scope_id;
+};
+#endif
+#define _PR_HAVE_THREADSAFE_GETHOST
+#define _PR_HAVE_ATOMIC_OPS
+#if defined(_M_IX86) || defined(_X86_)
+#define _PR_HAVE_ATOMIC_CAS
+#endif
+#define PR_HAVE_WIN32_NAMED_SHARED_MEMORY
+#define _PR_HAVE_PEEK_BUFFER
+#define _PR_PEEK_BUFFER_MAX (32 * 1024)
+#define _PR_FD_NEED_EMULATE_MSG_PEEK(fd) \
+    (!(fd)->secret->nonblocking && (fd)->secret->inheritable != _PR_TRI_TRUE)
+#define _PR_NEED_SECRET_AF
+
+/* --- Common User-Thread/Native-Thread Definitions --------------------- */
+
+/* --- Globals --- */
+extern struct PRLock                      *_pr_schedLock;
+
+/* --- Typedefs --- */
+typedef void (*FiberFunc)(void *);
+
+#define PR_NUM_GCREGS           8
+typedef PRInt32                 PR_CONTEXT_TYPE[PR_NUM_GCREGS];
+#define GC_VMBASE               0x40000000
+#define GC_VMLIMIT              0x00FFFFFF
+
+#define _MD_MAGIC_THREAD    0x22222222
+#define _MD_MAGIC_THREADSTACK   0x33333333
+#define _MD_MAGIC_SEGMENT   0x44444444
+#define _MD_MAGIC_DIR       0x55555555
+
+struct _MDCPU {
+    int              unused;
+};
+
+enum _MDIOModel {
+    _MD_BlockingIO = 0x38,
+    _MD_MultiWaitIO = 0x49
+};
+
+typedef struct _MDOverlapped {
+    OVERLAPPED overlapped;              /* Used for async I/O */
+
+    enum _MDIOModel ioModel;            /* The I/O model to implement
+                                         * using overlapped I/O.
+                                         */
+    union {
+        struct _MDThread *mdThread;     /* For blocking I/O, this structure
+                                         * is embedded in the _MDThread
+                                         * structure.
+                                         */
+        struct {
+            PRCList links;              /* for group->io_ready list */
+            struct PRRecvWait *desc;    /* For multiwait I/O, this structure
+                                         * is associated with a PRRecvWait
+                                         * structure.
+                                         */
+            struct PRWaitGroup *group;
+            struct TimerEvent *timer;
+            DWORD error;
+        } mw;
+    } data;
+} _MDOverlapped;
+
+struct _MDThread {
+    /* The overlapped structure must be first! */
+    struct _MDOverlapped overlapped;    /* Used for async IO for this thread */
+    void            *acceptex_buf;      /* Used for AcceptEx() */
+    TRANSMIT_FILE_BUFFERS *xmit_bufs;   /* Used for TransmitFile() */
+    HANDLE           blocked_sema;      /* Threads block on this when waiting
+                                         * for IO or CondVar.
+                                         */
+    PRInt32          blocked_io_status; /* Status of the completed IO */
+    PRInt32          blocked_io_bytes;  /* Bytes transferred for completed IO */
+    PRInt32          blocked_io_error;  /* Save error if status is FALSE */
+    HANDLE           handle;
+    PRUint32         id;
+    void            *sp;                /* only valid when suspended */
+    PRUint32         magic;             /* for debugging */
+    PR_CONTEXT_TYPE  gcContext;         /* Thread context for GC */
+    struct _PRCPU    *thr_bound_cpu;        /* thread bound to cpu */
+    PRBool           interrupt_disabled;/* thread cannot be interrupted */
+    HANDLE           thr_event;         /* For native-threads-only support,
+                                            thread blocks on this event     */
+
+    /* The following are used only if this is a fiber */
+    void            *fiber_id;          /* flag whether or not this is a fiber*/
+    FiberFunc        fiber_fn;          /* main fiber routine */
+    void            *fiber_arg;         /* arg to main fiber routine */
+    PRUint32         fiber_stacksize;   /* stacksize for fiber */
+    PRInt32          fiber_last_error;  /* last error for the fiber */
+    void (*start)(void *);              /* used by _PR_MD_CREATE_THREAD to
+                                         * pass its 'start' argument to
+                                         * pr_root. */
+};
+
+struct _MDThreadStack {
+    PRUint32           magic;          /* for debugging */
+};
+
+struct _MDSegment {
+    PRUint32           magic;          /* for debugging */
+};
+
+#undef PROFILE_LOCKS
+
+struct _MDLock {
+    CRITICAL_SECTION mutex;          /* this is recursive on NT */
+#ifdef PROFILE_LOCKS
+    PRInt32 hitcount;
+    PRInt32 misscount;
+#endif
+};
+
+struct _MDDir {
+    HANDLE           d_hdl;
+    WIN32_FIND_DATA  d_entry;
+    PRBool           firstEntry;     /* Is this the entry returned
+                                      * by FindFirstFile()? */
+    PRUint32         magic;          /* for debugging */
+};
+
+struct _MDCVar {
+    PRUint32         unused;
+};
+
+struct _MDSemaphore {
+    HANDLE           sem;
+};
+
+struct _MDFileDesc {
+    PROsfd osfd;     /* The osfd can come from one of three spaces:
+                      * - For stdin, stdout, and stderr, we are using
+                      *   the libc file handle (0, 1, 2), which is an int.
+                      * - For files and pipes, we are using Win32 HANDLE,
+                      *   which is a void*.
+                      * - For sockets, we are using Winsock SOCKET, which
+                      *   is a u_int.
+                      */
+    PRBool io_model_committed;  /* The io model (blocking or nonblocking)
+                                 * for this osfd has been committed and
+                                 * cannot be changed.  The osfd has been
+                                 * either associated with the io
+                                 * completion port or made nonblocking. */
+    PRBool sync_file_io;        /* Use synchronous file I/O on the osfd
+                                 * (a file handle) */
+    PRBool accepted_socket;     /* Is this an accepted socket (on the
+                                 * server side)? */
+    PRNetAddr peer_addr;        /* If this is an accepted socket, cache
+                                 * the peer's address returned by
+                                 * AcceptEx().  This is to work around
+                                 * the bug that getpeername() on an
+                                 * socket accepted by AcceptEx() returns
+                                 * an all-zero net address. */
+};
+
+struct _MDProcess {
+    HANDLE handle;
+    DWORD id;
+};
+
+
+/* --- Misc stuff --- */
+#define _MD_GET_SP(thread)            (thread)->md.gcContext[6]
+
+/* --- NT security stuff --- */
+
+extern void _PR_NT_InitSids(void);
+extern void _PR_NT_FreeSids(void);
+extern PRStatus _PR_NT_MakeSecurityDescriptorACL(
+    PRIntn mode,
+    DWORD accessTable[],
+    PSECURITY_DESCRIPTOR *resultSD,
+    PACL *resultACL
+);
+extern void _PR_NT_FreeSecurityDescriptorACL(
+    PSECURITY_DESCRIPTOR pSD, PACL pACL);
+
+/* --- IO stuff --- */
+
+extern PRInt32 _md_Associate(HANDLE);
+extern PRInt32 _PR_MD_CLOSE(PROsfd osfd, PRBool socket);
+
+#define _MD_OPEN                      _PR_MD_OPEN
+#define _MD_OPEN_FILE                 _PR_MD_OPEN_FILE
+#define _MD_READ                      _PR_MD_READ
+#define _MD_WRITE                     _PR_MD_WRITE
+#define _MD_WRITEV                    _PR_MD_WRITEV
+#define _MD_LSEEK                     _PR_MD_LSEEK
+#define _MD_LSEEK64                   _PR_MD_LSEEK64
+#define _MD_CLOSE_FILE(f)             _PR_MD_CLOSE(f, PR_FALSE)
+#define _MD_GETFILEINFO               _PR_MD_GETFILEINFO
+#define _MD_GETFILEINFO64             _PR_MD_GETFILEINFO64
+#define _MD_GETOPENFILEINFO           _PR_MD_GETOPENFILEINFO
+#define _MD_GETOPENFILEINFO64         _PR_MD_GETOPENFILEINFO64
+#define _MD_STAT                      _PR_MD_STAT
+#define _MD_RENAME                    _PR_MD_RENAME
+#define _MD_ACCESS                    _PR_MD_ACCESS
+#define _MD_DELETE                    _PR_MD_DELETE
+#define _MD_MKDIR                     _PR_MD_MKDIR
+#define _MD_MAKE_DIR                  _PR_MD_MAKE_DIR
+#define _MD_RMDIR                     _PR_MD_RMDIR
+#define _MD_LOCKFILE                  _PR_MD_LOCKFILE
+#define _MD_TLOCKFILE                 _PR_MD_TLOCKFILE
+#define _MD_UNLOCKFILE                _PR_MD_UNLOCKFILE
+
+/* --- Socket IO stuff --- */
+#define _MD_GET_SOCKET_ERROR()    WSAGetLastError()
+#define _MD_SET_SOCKET_ERROR(_err) WSASetLastError(_err)
+
+#define _MD_INIT_FILEDESC(fd)
+#define _MD_MAKE_NONBLOCK             _PR_MD_MAKE_NONBLOCK
+#define _MD_INIT_FD_INHERITABLE       _PR_MD_INIT_FD_INHERITABLE
+#define _MD_QUERY_FD_INHERITABLE      _PR_MD_QUERY_FD_INHERITABLE
+#define _MD_SHUTDOWN                  _PR_MD_SHUTDOWN
+#define _MD_LISTEN                    _PR_MD_LISTEN
+#define _MD_CLOSE_SOCKET(s)           _PR_MD_CLOSE(s, PR_TRUE)
+#define _MD_SENDTO                    _PR_MD_SENDTO
+#define _MD_RECVFROM                  _PR_MD_RECVFROM
+#define _MD_SOCKETPAIR(s, type, proto, sv) -1
+#define _MD_GETSOCKNAME               _PR_MD_GETSOCKNAME
+#define _MD_GETPEERNAME               _PR_MD_GETPEERNAME
+#define _MD_GETSOCKOPT                _PR_MD_GETSOCKOPT
+#define _MD_SETSOCKOPT                _PR_MD_SETSOCKOPT
+#define _MD_SELECT                    select
+extern int _PR_NTFiberSafeSelect(int, fd_set *, fd_set *, fd_set *,
+                                 const struct timeval *);
+#define _MD_FSYNC                     _PR_MD_FSYNC
+#define _MD_SOCKETAVAILABLE           _PR_MD_SOCKETAVAILABLE
+#define _MD_PIPEAVAILABLE             _PR_MD_PIPEAVAILABLE
+#define _MD_SET_FD_INHERITABLE        _PR_MD_SET_FD_INHERITABLE
+
+#define _MD_INIT_ATOMIC()
+#if defined(_M_IX86) || defined(_X86_)
+#define _MD_ATOMIC_INCREMENT          _PR_MD_ATOMIC_INCREMENT
+#define _MD_ATOMIC_ADD                _PR_MD_ATOMIC_ADD
+#define _MD_ATOMIC_DECREMENT          _PR_MD_ATOMIC_DECREMENT
+#else /* non-x86 processors */
+#define _MD_ATOMIC_INCREMENT(x)       InterlockedIncrement((PLONG)x)
+#define _MD_ATOMIC_ADD(ptr,val)    (InterlockedExchangeAdd((PLONG)ptr, (LONG)val) + val)
+#define _MD_ATOMIC_DECREMENT(x)       InterlockedDecrement((PLONG)x)
+#endif /* x86 */
+#define _MD_ATOMIC_SET(x,y)           InterlockedExchange((PLONG)x, (LONG)y)
+
+#define _MD_INIT_IO                   _PR_MD_INIT_IO
+#define _MD_SOCKET                    _PR_MD_SOCKET
+#define _MD_CONNECT                   _PR_MD_CONNECT
+
+#define _MD_ACCEPT(s, a, l, to)       \
+        _MD_FAST_ACCEPT(s, a, l, to, PR_FALSE, NULL, NULL)
+#define _MD_FAST_ACCEPT(s, a, l, to, fast, cb, cba) \
+        _PR_MD_FAST_ACCEPT(s, a, l, to, fast, cb, cba)
+#define _MD_ACCEPT_READ(s, ns, ra, buf, l, t) \
+        _MD_FAST_ACCEPT_READ(s, ns, ra, buf, l, t, PR_FALSE, NULL, NULL)
+#define _MD_FAST_ACCEPT_READ(s, ns, ra, buf, l, t, fast, cb, cba) \
+        _PR_MD_FAST_ACCEPT_READ(s, ns, ra, buf, l, t, fast, cb, cba)
+#define _MD_UPDATE_ACCEPT_CONTEXT     _PR_MD_UPDATE_ACCEPT_CONTEXT
+
+#define _MD_BIND                      _PR_MD_BIND
+#define _MD_RECV                      _PR_MD_RECV
+#define _MD_SEND                      _PR_MD_SEND
+#define _MD_SENDFILE                  _PR_MD_SENDFILE
+#define _MD_PR_POLL                   _PR_MD_PR_POLL
+
+/* --- Scheduler stuff --- */
+#define _MD_PAUSE_CPU                   _PR_MD_PAUSE_CPU
+
+/* --- DIR stuff --- */
+#define PR_DIRECTORY_SEPARATOR        '\\'
+#define PR_DIRECTORY_SEPARATOR_STR    "\\"
+#define PR_PATH_SEPARATOR       ';'
+#define PR_PATH_SEPARATOR_STR       ";"
+#define _MD_ERRNO()                   GetLastError()
+#define _MD_OPEN_DIR                  _PR_MD_OPEN_DIR
+#define _MD_CLOSE_DIR                 _PR_MD_CLOSE_DIR
+#define _MD_READ_DIR                  _PR_MD_READ_DIR
+
+/* --- Segment stuff --- */
+#define _MD_INIT_SEGS()
+#define _MD_ALLOC_SEGMENT(seg, size, vaddr)   0
+#define _MD_FREE_SEGMENT(seg)
+
+/* --- Environment Stuff --- */
+#define _MD_GET_ENV                 _PR_MD_GET_ENV
+#define _MD_PUT_ENV                 _PR_MD_PUT_ENV
+
+/* --- Threading Stuff --- */
+#define _MD_DEFAULT_STACK_SIZE            0
+#define _MD_INIT_THREAD             _PR_MD_INIT_THREAD
+#define _MD_INIT_ATTACHED_THREAD    _PR_MD_INIT_THREAD
+#define _MD_CREATE_THREAD           _PR_MD_CREATE_THREAD
+#define _MD_JOIN_THREAD             _PR_MD_JOIN_THREAD
+#define _MD_END_THREAD              _PR_MD_END_THREAD
+#define _MD_YIELD                   _PR_MD_YIELD
+#define _MD_SET_PRIORITY            _PR_MD_SET_PRIORITY
+#define _MD_SET_CURRENT_THREAD_NAME _PR_MD_SET_CURRENT_THREAD_NAME
+#define _MD_CLEAN_THREAD            _PR_MD_CLEAN_THREAD
+#define _MD_SETTHREADAFFINITYMASK   _PR_MD_SETTHREADAFFINITYMASK
+#define _MD_GETTHREADAFFINITYMASK   _PR_MD_GETTHREADAFFINITYMASK
+#define _MD_EXIT_THREAD             _PR_MD_EXIT_THREAD
+#define _MD_SUSPEND_THREAD          _PR_MD_SUSPEND_THREAD
+#define _MD_RESUME_THREAD           _PR_MD_RESUME_THREAD
+#define _MD_SUSPEND_CPU             _PR_MD_SUSPEND_CPU
+#define _MD_RESUME_CPU              _PR_MD_RESUME_CPU
+#define _MD_BEGIN_SUSPEND_ALL()
+#define _MD_BEGIN_RESUME_ALL()
+#define _MD_END_SUSPEND_ALL()
+#define _MD_END_RESUME_ALL()
+
+extern void _PR_Unblock_IO_Wait(PRThread *thr);
+
+/* --- Lock stuff --- */
+#define _MD_NEW_LOCK(lock)            (InitializeCriticalSection(&((lock)->mutex)),PR_SUCCESS)
+#define _MD_FREE_LOCK(lock)           DeleteCriticalSection(&((lock)->mutex))
+#ifndef PROFILE_LOCKS
+#define _MD_LOCK(lock)                EnterCriticalSection(&((lock)->mutex))
+#define _MD_TEST_AND_LOCK(lock)       (TryEnterCriticalSection(&((lock)->mutex))== FALSE)
+#define _MD_UNLOCK(lock)              LeaveCriticalSection(&((lock)->mutex))
+#else
+#define _MD_LOCK(lock)                 \
+    PR_BEGIN_MACRO \
+    BOOL rv = TryEnterCriticalSection(&((lock)->mutex)); \
+    if (rv == TRUE) { \
+        InterlockedIncrement(&((lock)->hitcount)); \
+    } else { \
+        InterlockedIncrement(&((lock)->misscount)); \
+        EnterCriticalSection(&((lock)->mutex)); \
+    } \
+    PR_END_MACRO
+#define _MD_TEST_AND_LOCK(lock)       0  /* XXXMB */
+#define _MD_UNLOCK(lock)              LeaveCriticalSection(&((lock)->mutex))
+#endif
+#define _PR_LOCK                      _MD_LOCK
+#define _PR_UNLOCK                    _MD_UNLOCK
+
+/* --- lock and cv waiting --- */
+#define _MD_WAIT                      _PR_MD_WAIT
+#define _MD_WAKEUP_WAITER             _PR_MD_WAKEUP_WAITER
+
+/* XXXMB- the IOQ stuff is certainly not working correctly yet. */
+extern  struct _MDLock              _pr_ioq_lock;
+#define _MD_IOQ_LOCK()                _MD_LOCK(&_pr_ioq_lock)
+#define _MD_IOQ_UNLOCK()              _MD_UNLOCK(&_pr_ioq_lock)
+
+
+/* --- Initialization stuff --- */
+#define _MD_START_INTERRUPTS()
+#define _MD_STOP_INTERRUPTS()
+#define _MD_DISABLE_CLOCK_INTERRUPTS()
+#define _MD_ENABLE_CLOCK_INTERRUPTS()
+#define _MD_BLOCK_CLOCK_INTERRUPTS()
+#define _MD_UNBLOCK_CLOCK_INTERRUPTS()
+#define _MD_EARLY_INIT                _PR_MD_EARLY_INIT
+#define _MD_FINAL_INIT()
+#define _MD_EARLY_CLEANUP()
+#define _MD_INIT_CPUS()
+#define _MD_INIT_RUNNING_CPU(cpu)
+
+struct PRProcess;
+struct PRProcessAttr;
+
+/* --- Create a new process --- */
+#define _MD_CREATE_PROCESS _PR_CreateWindowsProcess
+extern struct PRProcess * _PR_CreateWindowsProcess(
+    const char *path,
+    char *const *argv,
+    char *const *envp,
+    const struct PRProcessAttr *attr
+);
+
+#define _MD_DETACH_PROCESS _PR_DetachWindowsProcess
+extern PRStatus _PR_DetachWindowsProcess(struct PRProcess *process);
+
+/* --- Wait for a child process to terminate --- */
+#define _MD_WAIT_PROCESS _PR_WaitWindowsProcess
+extern PRStatus _PR_WaitWindowsProcess(struct PRProcess *process,
+                                       PRInt32 *exitCode);
+
+#define _MD_KILL_PROCESS _PR_KillWindowsProcess
+extern PRStatus _PR_KillWindowsProcess(struct PRProcess *process);
+
+/* --- User Threading stuff --- */
+#define HAVE_FIBERS
+#define _MD_CREATE_USER_THREAD            _PR_MD_CREATE_USER_THREAD
+#define _MD_CREATE_PRIMORDIAL_USER_THREAD _PR_MD_CREATE_PRIMORDIAL_USER_THREAD
+#define _MD_CLEANUP_BEFORE_EXIT           _PR_MD_CLEANUP_BEFORE_EXIT
+#define _MD_EXIT                          _PR_MD_EXIT
+#define _MD_INIT_CONTEXT                  _PR_MD_INIT_CONTEXT
+#define _MD_SWITCH_CONTEXT                _PR_MD_SWITCH_CONTEXT
+#define _MD_RESTORE_CONTEXT               _PR_MD_RESTORE_CONTEXT
+
+/* --- Intervals --- */
+#define _MD_INTERVAL_INIT                 _PR_MD_INTERVAL_INIT
+#define _MD_GET_INTERVAL                  _PR_MD_GET_INTERVAL
+#define _MD_INTERVAL_PER_SEC              _PR_MD_INTERVAL_PER_SEC
+#define _MD_INTERVAL_PER_MILLISEC()       (_PR_MD_INTERVAL_PER_SEC() / 1000)
+#define _MD_INTERVAL_PER_MICROSEC()       (_PR_MD_INTERVAL_PER_SEC() / 1000000)
+
+/* --- Time --- */
+extern void _PR_FileTimeToPRTime(const FILETIME *filetime, PRTime *prtm);
+
+/* --- Native-Thread Specific Definitions ------------------------------- */
+
+extern BOOL _pr_use_static_tls;
+
+extern __declspec(thread) struct PRThread *_pr_current_fiber;
+extern DWORD _pr_currentFiberIndex;
+
+#define _MD_GET_ATTACHED_THREAD() \
+    (_pr_use_static_tls ? _pr_current_fiber \
+    : (PRThread *) TlsGetValue(_pr_currentFiberIndex))
+
+extern struct PRThread * _MD_CURRENT_THREAD(void);
+
+#define _MD_SET_CURRENT_THREAD(_thread) \
+    PR_BEGIN_MACRO \
+        if (_pr_use_static_tls) { \
+            _pr_current_fiber = (_thread); \
+        } else { \
+            TlsSetValue(_pr_currentFiberIndex, (_thread)); \
+        } \
+    PR_END_MACRO
+
+extern __declspec(thread) struct PRThread *_pr_fiber_last_run;
+extern DWORD _pr_lastFiberIndex;
+
+#define _MD_LAST_THREAD() \
+    (_pr_use_static_tls ? _pr_fiber_last_run \
+    : (PRThread *) TlsGetValue(_pr_lastFiberIndex))
+
+#define _MD_SET_LAST_THREAD(_thread) \
+    PR_BEGIN_MACRO \
+        if (_pr_use_static_tls) { \
+            _pr_fiber_last_run = (_thread); \
+        } else { \
+            TlsSetValue(_pr_lastFiberIndex, (_thread)); \
+        } \
+    PR_END_MACRO
+
+extern __declspec(thread) struct _PRCPU *_pr_current_cpu;
+extern DWORD _pr_currentCPUIndex;
+
+#define _MD_CURRENT_CPU() \
+    (_pr_use_static_tls ? _pr_current_cpu \
+    : (struct _PRCPU *) TlsGetValue(_pr_currentCPUIndex))
+
+#define _MD_SET_CURRENT_CPU(_cpu) \
+    PR_BEGIN_MACRO \
+        if (_pr_use_static_tls) { \
+            _pr_current_cpu = (_cpu); \
+        } else { \
+            TlsSetValue(_pr_currentCPUIndex, (_cpu)); \
+        } \
+    PR_END_MACRO
+
+extern __declspec(thread) PRUintn _pr_ints_off;
+extern DWORD _pr_intsOffIndex;
+
+#define _MD_GET_INTSOFF() \
+    (_pr_use_static_tls ? _pr_ints_off \
+    : (PRUintn) TlsGetValue(_pr_intsOffIndex))
+
+#define _MD_SET_INTSOFF(_val) \
+    PR_BEGIN_MACRO \
+        if (_pr_use_static_tls) { \
+            _pr_ints_off = (_val); \
+        } else { \
+            TlsSetValue(_pr_intsOffIndex, (LPVOID) (_val)); \
+        } \
+    PR_END_MACRO
+
+/* --- Initialization stuff --- */
+#define _MD_INIT_LOCKS()
+
+/* --- Stack stuff --- */
+#define _MD_INIT_STACK(stack, redzone)
+#define _MD_CLEAR_STACK(stack)
+
+/* --- Memory-mapped files stuff --- */
+
+struct _MDFileMap {
+    HANDLE hFileMap;
+    DWORD dwAccess;
+};
+
+extern PRStatus _MD_CreateFileMap(struct PRFileMap *fmap, PRInt64 size);
+#define _MD_CREATE_FILE_MAP _MD_CreateFileMap
+
+extern PRInt32 _MD_GetMemMapAlignment(void);
+#define _MD_GET_MEM_MAP_ALIGNMENT _MD_GetMemMapAlignment
+
+extern void * _MD_MemMap(struct PRFileMap *fmap, PRInt64 offset,
+                         PRUint32 len);
+#define _MD_MEM_MAP _MD_MemMap
+
+extern PRStatus _MD_MemUnmap(void *addr, PRUint32 size);
+#define _MD_MEM_UNMAP _MD_MemUnmap
+
+extern PRStatus _MD_CloseFileMap(struct PRFileMap *fmap);
+#define _MD_CLOSE_FILE_MAP _MD_CloseFileMap
+
+extern PRStatus _MD_SyncMemMap(
+    PRFileDesc *fd,
+    void *addr,
+    PRUint32 len);
+#define _MD_SYNC_MEM_MAP _MD_SyncMemMap
+
+/* --- Named semaphores stuff --- */
+#define _PR_HAVE_NAMED_SEMAPHORES
+#define _MD_OPEN_SEMAPHORE            _PR_MD_OPEN_SEMAPHORE
+#define _MD_WAIT_SEMAPHORE            _PR_MD_WAIT_SEMAPHORE
+#define _MD_POST_SEMAPHORE            _PR_MD_POST_SEMAPHORE
+#define _MD_CLOSE_SEMAPHORE           _PR_MD_CLOSE_SEMAPHORE
+#define _MD_DELETE_SEMAPHORE(name)    PR_SUCCESS  /* no op */
+
+#endif /* nspr_win32_defs_h___ */
diff --git a/nsprpub/pr/include/md/prosdep.h b/nsprpub/pr/include/md/prosdep.h
new file mode 100644
index 0000000000..42eba3da74
--- /dev/null
+++ b/nsprpub/pr/include/md/prosdep.h
@@ -0,0 +1,96 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prosdep_h___
+#define prosdep_h___
+
+/*
+** Get OS specific header information
+*/
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+#ifdef XP_PC
+
+#include "md/_pcos.h"
+#ifdef WINNT
+#include "md/_winnt.h"
+#include "md/_win32_errors.h"
+#elif defined(WIN95) || defined(WINCE)
+#include "md/_win95.h"
+#include "md/_win32_errors.h"
+#elif defined(OS2)
+#include "md/_os2.h"
+#include "md/_os2_errors.h"
+#else
+#error unknown Windows platform
+#endif
+
+#elif defined(XP_UNIX)
+
+#if defined(AIX)
+#include "md/_aix.h"
+
+#elif defined(FREEBSD)
+#include "md/_freebsd.h"
+
+#elif defined(NETBSD)
+#include "md/_netbsd.h"
+
+#elif defined(OPENBSD)
+#include "md/_openbsd.h"
+
+#elif defined(BSDI)
+#include "md/_bsdi.h"
+
+#elif defined(HPUX)
+#include "md/_hpux.h"
+
+#elif defined(LINUX) || defined(__GNU__) || defined(__GLIBC__)
+#include "md/_linux.h"
+
+#elif defined(DARWIN)
+#include "md/_darwin.h"
+
+#elif defined(SOLARIS)
+#include "md/_solaris.h"
+
+#elif defined(SCO)
+#include "md/_scoos.h"
+
+#elif defined(UNIXWARE)
+#include "md/_unixware.h"
+
+#elif defined(QNX)
+#include "md/_qnx.h"
+
+#elif defined(NTO)
+#include "md/_nto.h"
+
+#elif defined(RISCOS)
+#include "md/_riscos.h"
+
+#else
+#error unknown Unix flavor
+
+#endif
+
+#include "md/_unixos.h"
+#include "md/_unix_errors.h"
+
+#else
+
+#error "The platform is not Unix, Windows, or Mac"
+
+#endif
+
+#ifdef _PR_PTHREADS
+#include "md/_pth.h"
+#endif
+
+PR_END_EXTERN_C
+
+#endif /* prosdep_h___ */
diff --git a/nsprpub/pr/include/nspr.h b/nsprpub/pr/include/nspr.h
new file mode 100644
index 0000000000..0cbc71c10d
--- /dev/null
+++ b/nsprpub/pr/include/nspr.h
@@ -0,0 +1,43 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nspr_h___
+#define nspr_h___
+
+#include "pratom.h"
+#include "prbit.h"
+#include "prclist.h"
+#include "prcmon.h"
+#include "prcvar.h"
+#include "prdtoa.h"
+#include "prenv.h"
+#include "prerror.h"
+#include "prinet.h"
+#include "prinit.h"
+#include "prinrval.h"
+#include "prio.h"
+#include "pripcsem.h"
+#include "prlink.h"
+#include "prlock.h"
+#include "prlog.h"
+#include "prlong.h"
+#include "prmem.h"
+#include "prmon.h"
+#include "prmwait.h"
+#include "prnetdb.h"
+#include "prprf.h"
+#include "prproces.h"
+#include "prrng.h"
+#include "prrwlock.h"
+#include "prshm.h"
+#include "prshma.h"
+#include "prsystem.h"
+#include "prthread.h"
+#include "prtime.h"
+#include "prtpool.h"
+#include "prtrace.h"
+#include "prtypes.h"
+
+#endif /* nspr_h___ */
diff --git a/nsprpub/pr/include/obsolete/Makefile.in b/nsprpub/pr/include/obsolete/Makefile.in
new file mode 100644
index 0000000000..27116a2c7a
--- /dev/null
+++ b/nsprpub/pr/include/obsolete/Makefile.in
@@ -0,0 +1,28 @@
+# 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+#! gmake
+
+MOD_DEPTH	= ../../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(MOD_DEPTH)/config/autoconf.mk
+
+include $(topsrcdir)/config/config.mk
+
+HEADERS = $(wildcard $(srcdir)/*.h)
+
+RELEASE_HEADERS = $(HEADERS)
+RELEASE_HEADERS_DEST = $(RELEASE_INCLUDE_DIR)/obsolete
+
+include_subdir = obsolete
+
+include $(topsrcdir)/config/rules.mk
+
+export:: $(RELEASE_HEADERS)
+	$(INSTALL) -m 444 $(RELEASE_HEADERS) $(dist_includedir)/obsolete
diff --git a/nsprpub/pr/include/obsolete/pralarm.h b/nsprpub/pr/include/obsolete/pralarm.h
new file mode 100644
index 0000000000..9ae3a4bcf0
--- /dev/null
+++ b/nsprpub/pr/include/obsolete/pralarm.h
@@ -0,0 +1,162 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** File:        pralarm.h
+** Description: API to periodic alarms.
+**
+**
+** Alarms are defined to invoke some client specified function at
+** a time in the future. The notification may be a one time event
+** or repeated at a fixed interval. The interval at which the next
+** notification takes place may be modified by the client code only
+** during the respective notification.
+**
+** The notification is delivered on a thread that is part of the
+** alarm context (PRAlarm). The thread will inherit the priority
+** of the Alarm creator.
+**
+** Any number of periodic alarms (PRAlarmID) may be created within
+** the context of a single alarm (PRAlarm). The notifications will be
+** scheduled as close to the desired time as possible.
+**
+** Repeating periodic notifies are expected to run at a fixed rate.
+** That rate is expressed as some number of notifies per period where
+** the period is much larger than a PRIntervalTime (see prinrval.h).
+*/
+
+#if !defined(pralarm_h)
+#define pralarm_h
+
+#include "prtypes.h"
+#include "prinrval.h"
+
+
+PR_BEGIN_EXTERN_C
+
+/**********************************************************************/
+/************************* TYPES AND CONSTANTS ************************/
+/**********************************************************************/
+
+typedef struct PRAlarm PRAlarm;
+typedef struct PRAlarmID PRAlarmID;
+
+typedef PRBool (PR_CALLBACK *PRPeriodicAlarmFn)(
+    PRAlarmID *id, void *clientData, PRUint32 late);
+
+/**********************************************************************/
+/****************************** FUNCTIONS *****************************/
+/**********************************************************************/
+
+/***********************************************************************
+** FUNCTION:    PR_CreateAlarm
+** DESCRIPTION:
+**  Create an alarm context.
+** INPUTS:      void
+** OUTPUTS:     None
+** RETURN:      PRAlarm*
+**
+** SIDE EFFECTS:
+**  This creates an alarm context, which is an object used for subsequent
+**  notification creations. It also creates a thread that will be used to
+** deliver the notifications that are expected to be defined. The client
+** is resposible for destroying the context when appropriate.
+** RESTRICTIONS:
+**  None.
+** MEMORY:      The object (PRAlarm) and a thread to support notifications.
+** ALGORITHM:   N/A
+***********************************************************************/
+NSPR_API(PRAlarm*) PR_CreateAlarm(void);
+
+/***********************************************************************
+** FUNCTION:    PR_DestroyAlarm
+** DESCRIPTION:
+**  Destroys the context created by PR_CreateAlarm().
+** INPUTS:      PRAlarm*
+** OUTPUTS:     None
+** RETURN:      PRStatus
+**
+** SIDE EFFECTS:
+**  This destroys the context that was created by PR_CreateAlarm().
+**  If there are any active alarms (PRAlarmID), they will be cancelled.
+**  Once that is done, the thread that was used to deliver the alarms
+**  will be joined.
+** RESTRICTIONS:
+**  None.
+** MEMORY:      N/A
+** ALGORITHM:   N/A
+***********************************************************************/
+NSPR_API(PRStatus) PR_DestroyAlarm(PRAlarm *alarm);
+
+/***********************************************************************
+** FUNCTION:    PR_SetAlarm
+** DESCRIPTION:
+**  Creates a periodic notifier that is to be delivered to a specified
+**  function at some fixed interval.
+** INPUTS:      PRAlarm *alarm              Parent alarm context
+**              PRIntervalTime period       Interval over which the notifies
+**                                          are delivered.
+**              PRUint32 rate               The rate within the interval that
+**                                          the notifies will be delivered.
+**              PRPeriodicAlarmFn function  Entry point where the notifies
+**                                          will be delivered.
+** OUTPUTS:     None
+** RETURN:      PRAlarmID*                  Handle to the notifier just created
+**                                          or NULL if the request failed.
+**
+** SIDE EFFECTS:
+**  A periodic notifier is created. The notifications will be delivered
+**  by the alarm's internal thread at a fixed interval whose rate is the
+**  number of interrupts per interval specified. The first notification
+**  will be delivered as soon as possible, and they will continue until
+**  the notifier routine indicates that they should cease of the alarm
+**  context is destroyed (PR_DestroyAlarm).
+** RESTRICTIONS:
+**  None.
+** MEMORY:      Memory for the notifier object.
+** ALGORITHM:   The rate at which notifications are delivered are stated
+**              to be "'rate' notifies per 'interval'". The exact time of
+**              the notification is computed based on a epoch established
+**              when the notifier was set. Each notification is delivered
+**              not ealier than the epoch plus the fixed rate times the
+**              notification sequence number. Such notifications have the
+**              potential to be late by not more than 'interval'/'rate'.
+**              The amount of lateness of one notification is taken into
+**              account on the next in an attempt to avoid long term slew.
+***********************************************************************/
+NSPR_API(PRAlarmID*) PR_SetAlarm(
+    PRAlarm *alarm, PRIntervalTime period, PRUint32 rate,
+    PRPeriodicAlarmFn function, void *clientData);
+
+/***********************************************************************
+** FUNCTION:    PR_ResetAlarm
+** DESCRIPTION:
+**  Resets an existing alarm.
+** INPUTS:      PRAlarmID *id               Identify of the notifier.
+**              PRIntervalTime period       Interval over which the notifies
+**                                          are delivered.
+**              PRUint32 rate               The rate within the interval that
+**                                          the notifies will be delivered.
+** OUTPUTS:     None
+** RETURN:      PRStatus                    Indication of completion.
+**
+** SIDE EFFECTS:
+**  An existing alarm may have its period and rate redefined. The
+**  additional side effect is that the notifier's epoch is recomputed.
+**  The first notification delivered by the newly refreshed alarm is
+**  defined to be 'interval'/'rate' from the time of the reset.
+** RESTRICTIONS:
+**  This function may only be called in the notifier for that alarm.
+** MEMORY:      N/A.
+** ALGORITHM:   See PR_SetAlarm().
+***********************************************************************/
+NSPR_API(PRStatus) PR_ResetAlarm(
+    PRAlarmID *id, PRIntervalTime period, PRUint32 rate);
+
+PR_END_EXTERN_C
+
+#endif /* !defined(pralarm_h) */
+
+/* prinrval.h */
diff --git a/nsprpub/pr/include/obsolete/probslet.h b/nsprpub/pr/include/obsolete/probslet.h
new file mode 100644
index 0000000000..db743c5ed1
--- /dev/null
+++ b/nsprpub/pr/include/obsolete/probslet.h
@@ -0,0 +1,149 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** A collection of things thought to be obsolete
+*/
+
+#if defined(PROBSLET_H)
+#else
+#define PROBSLET_H
+
+#include "prio.h"
+#include "private/pprio.h"  /* for PROsfd */
+
+PR_BEGIN_EXTERN_C
+
+/*
+** Yield the current thread.  The proper function to use in place of
+** PR_Yield() is PR_Sleep() with an argument of PR_INTERVAL_NO_WAIT.
+*/
+NSPR_API(PRStatus) PR_Yield(void);
+
+/************************************************************************/
+/************* The following definitions are for select *****************/
+/************************************************************************/
+
+/*
+** The following is obsolete and will be deleted in the next release!
+** These are provided for compatibility, but are GUARANTEED to be slow.
+**
+** Override PR_MAX_SELECT_DESC if you need more space in the select set.
+*/
+#ifndef PR_MAX_SELECT_DESC
+#define PR_MAX_SELECT_DESC 1024
+#endif
+typedef struct PR_fd_set {
+    PRUint32      hsize;
+    PRFileDesc   *harray[PR_MAX_SELECT_DESC];
+    PRUint32      nsize;
+    PROsfd        narray[PR_MAX_SELECT_DESC];
+} PR_fd_set;
+
+/*
+*************************************************************************
+** FUNCTION:    PR_Select
+** DESCRIPTION:
+**
+** The call returns as soon as I/O is ready on one or more of the underlying
+** file/socket descriptors or an exceptional condition is pending. A count of the
+** number of ready descriptors is returned unless a timeout occurs in which case
+** zero is returned.  On return, PR_Select replaces the given descriptor sets with
+** subsets consisting of those descriptors that are ready for the requested condition.
+** The total number of ready descriptors in all the sets is the return value.
+**
+** INPUTS:
+**   PRInt32 num
+**       This argument is unused but is provided for select(unix) interface
+**       compatability.  All input PR_fd_set arguments are self-describing
+**       with its own maximum number of elements in the set.
+**
+**   PR_fd_set *readfds
+**       A set describing the io descriptors for which ready for reading
+**       condition is of interest.
+**
+**   PR_fd_set *writefds
+**       A set describing the io descriptors for which ready for writing
+**       condition is of interest.
+**
+**   PR_fd_set *exceptfds
+**       A set describing the io descriptors for which exception pending
+**       condition is of interest.
+**
+**   Any of the above readfds, writefds or exceptfds may be given as NULL
+**   pointers if no descriptors are of interest for that particular condition.
+**
+**   PRIntervalTime timeout
+**       Amount of time the call will block waiting for I/O to become ready.
+**       If this time expires without any I/O becoming ready, the result will
+**       be zero.
+**
+** OUTPUTS:
+**   PR_fd_set *readfds
+**       A set describing the io descriptors which are ready for reading.
+**
+**   PR_fd_set *writefds
+**       A set describing the io descriptors which are ready for writing.
+**
+**   PR_fd_set *exceptfds
+**       A set describing the io descriptors which have pending exception.
+**
+** RETURN:PRInt32
+**   Number of io descriptors with asked for conditions or zero if the function
+**   timed out or -1 on failure.  The reason for the failure is obtained by
+**   calling PR_GetError().
+** XXX can we implement this on windoze and mac?
+**************************************************************************
+*/
+NSPR_API(PRInt32) PR_Select(
+    PRInt32 num, PR_fd_set *readfds, PR_fd_set *writefds,
+    PR_fd_set *exceptfds, PRIntervalTime timeout);
+
+/*
+** The following are not thread safe for two threads operating on them at the
+** same time.
+**
+** The following routines are provided for manipulating io descriptor sets.
+** PR_FD_ZERO(&fdset) initializes a descriptor set fdset to the null set.
+** PR_FD_SET(fd, &fdset) includes a particular file descriptor fd in fdset.
+** PR_FD_CLR(fd, &fdset) removes a file descriptor fd from fdset.
+** PR_FD_ISSET(fd, &fdset) is nonzero if file descriptor fd is a member of
+** fdset, zero otherwise.
+**
+** PR_FD_NSET(osfd, &fdset) includes a particular native file descriptor osfd
+** in fdset.
+** PR_FD_NCLR(osfd, &fdset) removes a native file descriptor osfd from fdset.
+** PR_FD_NISSET(osfd, &fdset) is nonzero if native file descriptor osfd is a member of
+** fdset, zero otherwise.
+*/
+
+NSPR_API(void)        PR_FD_ZERO(PR_fd_set *set);
+NSPR_API(void)        PR_FD_SET(PRFileDesc *fd, PR_fd_set *set);
+NSPR_API(void)        PR_FD_CLR(PRFileDesc *fd, PR_fd_set *set);
+NSPR_API(PRInt32)     PR_FD_ISSET(PRFileDesc *fd, PR_fd_set *set);
+NSPR_API(void)        PR_FD_NSET(PROsfd osfd, PR_fd_set *set);
+NSPR_API(void)        PR_FD_NCLR(PROsfd osfd, PR_fd_set *set);
+NSPR_API(PRInt32)     PR_FD_NISSET(PROsfd osfd, PR_fd_set *set);
+
+/*
+** The next two entry points should not be in the API, but they are
+** declared here for historical reasons.
+*/
+
+NSPR_API(PRInt32) PR_GetSysfdTableMax(void);
+
+NSPR_API(PRInt32) PR_SetSysfdTableSize(PRIntn table_size);
+
+#ifndef NO_NSPR_10_SUPPORT
+#include <sys/stat.h>
+
+NSPR_API(PRInt32) PR_Stat(const char *path, struct stat *buf);
+#endif /* NO_NSPR_10_SUPPORT */
+
+PR_END_EXTERN_C
+
+#endif /* defined(PROBSLET_H) */
+
+/* probslet.h */
diff --git a/nsprpub/pr/include/obsolete/protypes.h b/nsprpub/pr/include/obsolete/protypes.h
new file mode 100644
index 0000000000..5400afb234
--- /dev/null
+++ b/nsprpub/pr/include/obsolete/protypes.h
@@ -0,0 +1,183 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * This header typedefs the old 'native' types to the new PR<type>s.
+ * These definitions are scheduled to be eliminated at the earliest
+ * possible time. The NSPR API is implemented and documented using
+ * the new definitions.
+ */
+
+#if !defined(PROTYPES_H)
+#define PROTYPES_H
+
+typedef PRUintn uintn;
+#ifndef _XP_Core_
+typedef PRIntn intn;
+#endif
+
+/*
+ * It is trickier to define uint, int8, uint8, int16, uint16,
+ * int32, uint32, int64, and uint64 because some of these int
+ * types are defined by standard header files on some platforms.
+ * Our strategy here is to include all such standard headers
+ * first, and then define these int types only if they are not
+ * defined by those standard headers.
+ */
+
+/*
+ * SVR4 typedef of uint is commonly found on UNIX machines.
+ *
+ * On AIX 4.3, sys/inttypes.h (which is included by sys/types.h)
+ * defines the types int8, int16, int32, and int64.
+ *
+ * On OS/2, sys/types.h defines uint.
+ */
+#if defined(XP_UNIX) || defined(XP_OS2)
+#include <sys/types.h>
+#endif
+
+/* model.h on HP-UX defines int8, int16, and int32. */
+#ifdef HPUX
+#include <model.h>
+#endif
+
+/*
+ * uint
+ */
+
+#if !defined(XP_OS2) && !defined(XP_UNIX) || defined(NTO)
+typedef PRUintn uint;
+#endif
+
+/*
+ * uint64
+ */
+
+typedef PRUint64 uint64;
+
+/*
+ * uint32
+ */
+
+#if !defined(_WIN32) && !defined(XP_OS2) && !defined(NTO)
+typedef PRUint32 uint32;
+#else
+typedef unsigned long uint32;
+#endif
+
+/*
+ * uint16
+ */
+
+typedef PRUint16 uint16;
+
+/*
+ * uint8
+ */
+
+typedef PRUint8 uint8;
+
+/*
+ * int64
+ */
+
+#if !defined(_PR_AIX_HAVE_BSD_INT_TYPES)
+typedef PRInt64 int64;
+#endif
+
+/*
+ * int32
+ */
+
+#if !defined(_PR_AIX_HAVE_BSD_INT_TYPES) \
+    && !defined(HPUX)
+#if !defined(_WIN32) && !defined(XP_OS2) && !defined(NTO)
+typedef PRInt32 int32;
+#else
+typedef long int32;
+#endif
+#endif
+
+/*
+ * int16
+ */
+
+#if !defined(_PR_AIX_HAVE_BSD_INT_TYPES) \
+    && !defined(HPUX)
+typedef PRInt16 int16;
+#endif
+
+/*
+ * int8
+ */
+
+#if !defined(_PR_AIX_HAVE_BSD_INT_TYPES) \
+    && !defined(HPUX)
+typedef PRInt8 int8;
+#endif
+
+typedef PRFloat64 float64;
+typedef PRUptrdiff uptrdiff_t;
+typedef PRUword uprword_t;
+typedef PRWord prword_t;
+
+
+/* Re: prbit.h */
+#define TEST_BIT    PR_TEST_BIT
+#define SET_BIT     PR_SET_BIT
+#define CLEAR_BIT   PR_CLEAR_BIT
+
+/* Re: prarena.h->plarena.h */
+#define PRArena PLArena
+#define PRArenaPool PLArenaPool
+#define PRArenaStats PLArenaStats
+#define PR_ARENA_ALIGN PL_ARENA_ALIGN
+#define PR_INIT_ARENA_POOL PL_INIT_ARENA_POOL
+#define PR_ARENA_ALLOCATE PL_ARENA_ALLOCATE
+#define PR_ARENA_GROW PL_ARENA_GROW
+#define PR_ARENA_MARK PL_ARENA_MARK
+#define PR_CLEAR_UNUSED PL_CLEAR_UNUSED
+#define PR_CLEAR_ARENA PL_CLEAR_ARENA
+#define PR_ARENA_RELEASE PL_ARENA_RELEASE
+#define PR_COUNT_ARENA PL_COUNT_ARENA
+#define PR_ARENA_DESTROY PL_ARENA_DESTROY
+#define PR_InitArenaPool PL_InitArenaPool
+#define PR_FreeArenaPool PL_FreeArenaPool
+#define PR_FinishArenaPool PL_FinishArenaPool
+#define PR_CompactArenaPool PL_CompactArenaPool
+#define PR_ArenaFinish PL_ArenaFinish
+#define PR_ArenaAllocate PL_ArenaAllocate
+#define PR_ArenaGrow PL_ArenaGrow
+#define PR_ArenaRelease PL_ArenaRelease
+#define PR_ArenaCountAllocation PL_ArenaCountAllocation
+#define PR_ArenaCountInplaceGrowth PL_ArenaCountInplaceGrowth
+#define PR_ArenaCountGrowth PL_ArenaCountGrowth
+#define PR_ArenaCountRelease PL_ArenaCountRelease
+#define PR_ArenaCountRetract PL_ArenaCountRetract
+
+/* Re: prhash.h->plhash.h */
+#define PRHashEntry PLHashEntry
+#define PRHashTable PLHashTable
+#define PRHashNumber PLHashNumber
+#define PRHashFunction PLHashFunction
+#define PRHashComparator PLHashComparator
+#define PRHashEnumerator PLHashEnumerator
+#define PRHashAllocOps PLHashAllocOps
+#define PR_NewHashTable PL_NewHashTable
+#define PR_HashTableDestroy PL_HashTableDestroy
+#define PR_HashTableRawLookup PL_HashTableRawLookup
+#define PR_HashTableRawAdd PL_HashTableRawAdd
+#define PR_HashTableRawRemove PL_HashTableRawRemove
+#define PR_HashTableAdd PL_HashTableAdd
+#define PR_HashTableRemove PL_HashTableRemove
+#define PR_HashTableEnumerateEntries PL_HashTableEnumerateEntries
+#define PR_HashTableLookup PL_HashTableLookup
+#define PR_HashTableDump PL_HashTableDump
+#define PR_HashString PL_HashString
+#define PR_CompareStrings PL_CompareStrings
+#define PR_CompareValues PL_CompareValues
+
+#endif /* !defined(PROTYPES_H) */
diff --git a/nsprpub/pr/include/obsolete/prsem.h b/nsprpub/pr/include/obsolete/prsem.h
new file mode 100644
index 0000000000..d1981d2b9b
--- /dev/null
+++ b/nsprpub/pr/include/obsolete/prsem.h
@@ -0,0 +1,64 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prsem_h___
+#define prsem_h___
+
+/*
+** API for counting semaphores. Semaphores are counting synchronizing
+** variables based on a lock and a condition variable.  They are lightweight
+** contention control for a given count of resources.
+*/
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+typedef struct PRSemaphore PRSemaphore;
+
+/*
+** Create a new semaphore object.
+*/
+NSPR_API(PRSemaphore*) PR_NewSem(PRUintn value);
+
+/*
+** Destroy the given semaphore object.
+**
+*/
+NSPR_API(void) PR_DestroySem(PRSemaphore *sem);
+
+/*
+** Wait on a Semaphore.
+**
+** This routine allows a calling thread to wait or proceed depending upon the
+** state of the semahore sem. The thread can proceed only if the counter value
+** of the semaphore sem is currently greater than 0. If the value of semaphore
+** sem is positive, it is decremented by one and the routine returns immediately
+** allowing the calling thread to continue. If the value of semaphore sem is 0,
+** the calling thread blocks awaiting the semaphore to be released by another
+** thread.
+**
+** This routine can return PR_PENDING_INTERRUPT if the waiting thread
+** has been interrupted.
+*/
+NSPR_API(PRStatus) PR_WaitSem(PRSemaphore *sem);
+
+/*
+** This routine increments the counter value of the semaphore. If other threads
+** are blocked for the semaphore, then the scheduler will determine which ONE
+** thread will be unblocked.
+*/
+NSPR_API(void) PR_PostSem(PRSemaphore *sem);
+
+/*
+** Returns the value of the semaphore referenced by sem without affecting
+** the state of the semaphore.  The value represents the semaphore vaule
+F** at the time of the call, but may not be the actual value when the
+** caller inspects it.
+*/
+NSPR_API(PRUintn) PR_GetValueSem(PRSemaphore *sem);
+
+PR_END_EXTERN_C
+
+#endif /* prsem_h___ */
diff --git a/nsprpub/pr/include/pratom.h b/nsprpub/pr/include/pratom.h
new file mode 100644
index 0000000000..11a8aaedc9
--- /dev/null
+++ b/nsprpub/pr/include/pratom.h
@@ -0,0 +1,198 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* GLOBAL FUNCTIONS:
+** DESCRIPTION:
+**     PR Atomic operations
+*/
+
+#ifndef pratom_h___
+#define pratom_h___
+
+#include "prtypes.h"
+#include "prlock.h"
+
+PR_BEGIN_EXTERN_C
+
+/*
+** FUNCTION: PR_AtomicIncrement
+** DESCRIPTION:
+**    Atomically increment a 32 bit value.
+** INPUTS:
+**    val:  a pointer to the value to increment
+** RETURN:
+**    the returned value is the result of the increment
+*/
+NSPR_API(PRInt32)   PR_AtomicIncrement(PRInt32 *val);
+
+/*
+** FUNCTION: PR_AtomicDecrement
+** DESCRIPTION:
+**    Atomically decrement a 32 bit value.
+** INPUTS:
+**    val:  a pointer to the value to decrement
+** RETURN:
+**    the returned value is the result of the decrement
+*/
+NSPR_API(PRInt32)   PR_AtomicDecrement(PRInt32 *val);
+
+/*
+** FUNCTION: PR_AtomicSet
+** DESCRIPTION:
+**    Atomically set a 32 bit value.
+** INPUTS:
+**    val: A pointer to a 32 bit value to be set
+**    newval: The newvalue to assign to val
+** RETURN:
+**    Returns the prior value
+*/
+NSPR_API(PRInt32) PR_AtomicSet(PRInt32 *val, PRInt32 newval);
+
+/*
+** FUNCTION: PR_AtomicAdd
+** DESCRIPTION:
+**    Atomically add a 32 bit value.
+** INPUTS:
+**    ptr:  a pointer to the value to increment
+**    val:  value to be added
+** RETURN:
+**    the returned value is the result of the addition
+*/
+NSPR_API(PRInt32)   PR_AtomicAdd(PRInt32 *ptr, PRInt32 val);
+
+/*
+** MACRO: PR_ATOMIC_INCREMENT
+** MACRO: PR_ATOMIC_DECREMENT
+** MACRO: PR_ATOMIC_SET
+** MACRO: PR_ATOMIC_ADD
+** DESCRIPTION:
+**    Macro versions of the atomic operations.  They may be implemented
+**    as compiler intrinsics.
+**
+** IMPORTANT NOTE TO NSPR MAINTAINERS:
+**    Implement these macros with compiler intrinsics only on platforms
+**    where the PR_AtomicXXX functions are truly atomic (i.e., where the
+**    configuration macro _PR_HAVE_ATOMIC_OPS is defined).  Otherwise,
+**    the macros and functions won't be compatible and can't be used
+**    interchangeably.
+*/
+#if defined(_WIN32) && !defined(_WIN32_WCE) && \
+    (!defined(_MSC_VER) || (_MSC_VER >= 1310))
+
+#include <intrin.h>
+
+#ifdef _MSC_VER
+#pragma intrinsic(_InterlockedIncrement)
+#pragma intrinsic(_InterlockedDecrement)
+#pragma intrinsic(_InterlockedExchange)
+#pragma intrinsic(_InterlockedExchangeAdd)
+#endif
+
+#define PR_ATOMIC_INCREMENT(val) _InterlockedIncrement((long volatile *)(val))
+#define PR_ATOMIC_DECREMENT(val) _InterlockedDecrement((long volatile *)(val))
+#define PR_ATOMIC_SET(val, newval) \
+        _InterlockedExchange((long volatile *)(val), (long)(newval))
+#define PR_ATOMIC_ADD(ptr, val) \
+        (_InterlockedExchangeAdd((long volatile *)(ptr), (long)(val)) + (val))
+
+#elif ((__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)) && \
+      ((defined(__APPLE__) && \
+           (defined(__ppc__) || defined(__i386__) || defined(__x86_64__))) || \
+       (defined(__linux__) && \
+           ((defined(__i386__) && \
+           defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)) || \
+           defined(__ia64__) || defined(__x86_64__) || \
+           defined(__powerpc__) || \
+           (defined(__arm__) && \
+           defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)) || \
+           defined(__aarch64__) || defined(__alpha) || \
+           (defined(__mips__) && \
+           defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)))))
+
+/*
+ * Because the GCC manual warns that some processors may support
+ * reduced functionality of __sync_lock_test_and_set, we test for the
+ * processors that we believe support a full atomic exchange operation.
+ */
+
+#define PR_ATOMIC_INCREMENT(val) __sync_add_and_fetch(val, 1)
+#define PR_ATOMIC_DECREMENT(val) __sync_sub_and_fetch(val, 1)
+#define PR_ATOMIC_SET(val, newval) __sync_lock_test_and_set(val, newval)
+#define PR_ATOMIC_ADD(ptr, val) __sync_add_and_fetch(ptr, val)
+
+#else
+
+#define PR_ATOMIC_INCREMENT(val) PR_AtomicIncrement(val)
+#define PR_ATOMIC_DECREMENT(val) PR_AtomicDecrement(val)
+#define PR_ATOMIC_SET(val, newval) PR_AtomicSet(val, newval)
+#define PR_ATOMIC_ADD(ptr, val) PR_AtomicAdd(ptr, val)
+
+#endif
+
+/*
+** LIFO linked-list (stack)
+*/
+typedef struct PRStackElemStr PRStackElem;
+
+struct PRStackElemStr {
+    PRStackElem *prstk_elem_next;   /* next pointer MUST be at offset 0;
+                                      assembly language code relies on this */
+};
+
+typedef struct PRStackStr PRStack;
+
+/*
+** FUNCTION: PR_CreateStack
+** DESCRIPTION:
+**    Create a stack, a LIFO linked list
+** INPUTS:
+**    stack_name:  a pointer to string containing the name of the stack
+** RETURN:
+**    A pointer to the created stack, if successful, else NULL.
+*/
+NSPR_API(PRStack *) PR_CreateStack(const char *stack_name);
+
+/*
+** FUNCTION: PR_StackPush
+** DESCRIPTION:
+**    Push an element on the top of the stack
+** INPUTS:
+**    stack:        pointer to the stack
+**    stack_elem:   pointer to the stack element
+** RETURN:
+**    None
+*/
+NSPR_API(void)          PR_StackPush(PRStack *stack, PRStackElem *stack_elem);
+
+/*
+** FUNCTION: PR_StackPop
+** DESCRIPTION:
+**    Remove the element on the top of the stack
+** INPUTS:
+**    stack:        pointer to the stack
+** RETURN:
+**    A pointer to the stack element removed from the top of the stack,
+**    if non-empty,
+**    else NULL
+*/
+NSPR_API(PRStackElem *) PR_StackPop(PRStack *stack);
+
+/*
+** FUNCTION: PR_DestroyStack
+** DESCRIPTION:
+**    Destroy the stack
+** INPUTS:
+**    stack:        pointer to the stack
+** RETURN:
+**    PR_SUCCESS - if successfully deleted
+**    PR_FAILURE - if the stack is not empty
+**                  PR_GetError will return
+**                      PR_INVALID_STATE_ERROR - stack is not empty
+*/
+NSPR_API(PRStatus)      PR_DestroyStack(PRStack *stack);
+
+PR_END_EXTERN_C
+
+#endif /* pratom_h___ */
diff --git a/nsprpub/pr/include/prbit.h b/nsprpub/pr/include/prbit.h
new file mode 100644
index 0000000000..50c65923af
--- /dev/null
+++ b/nsprpub/pr/include/prbit.h
@@ -0,0 +1,152 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prbit_h___
+#define prbit_h___
+
+#include "prtypes.h"
+PR_BEGIN_EXTERN_C
+
+/*
+** Replace compare/jump/add/shift sequence with compiler built-in/intrinsic
+** functions.
+*/
+#if defined(_WIN32) && (_MSC_VER >= 1300) && \
+    (defined(_M_IX86) || defined(_M_X64) || defined(_M_ARM) || \
+     defined(_M_ARM64))
+# include <intrin.h>
+# pragma  intrinsic(_BitScanForward,_BitScanReverse)
+__forceinline static int __prBitScanForward32(unsigned int val)
+{
+    unsigned long idx;
+    _BitScanForward(&idx, (unsigned long)val);
+    return( (int)idx );
+}
+__forceinline static int __prBitScanReverse32(unsigned int val)
+{
+    unsigned long idx;
+    _BitScanReverse(&idx, (unsigned long)val);
+    return( (int)(31-idx) );
+}
+# define pr_bitscan_ctz32(val)  __prBitScanForward32(val)
+# define pr_bitscan_clz32(val)  __prBitScanReverse32(val)
+# define  PR_HAVE_BUILTIN_BITSCAN32
+#elif ((__GNUC__ >= 4) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)) && \
+       (defined(__i386__) || defined(__x86_64__) || defined(__arm__) || \
+        defined(__aarch64__))
+# define pr_bitscan_ctz32(val)  __builtin_ctz(val)
+# define pr_bitscan_clz32(val)  __builtin_clz(val)
+# define  PR_HAVE_BUILTIN_BITSCAN32
+#endif /* MSVC || GCC */
+
+/*
+** A prbitmap_t is a long integer that can be used for bitmaps
+*/
+typedef unsigned long prbitmap_t;
+
+#define PR_TEST_BIT(_map,_bit) \
+    ((_map)[(_bit)>>PR_BITS_PER_LONG_LOG2] & (1L << ((_bit) & (PR_BITS_PER_LONG-1))))
+#define PR_SET_BIT(_map,_bit) \
+    ((_map)[(_bit)>>PR_BITS_PER_LONG_LOG2] |= (1L << ((_bit) & (PR_BITS_PER_LONG-1))))
+#define PR_CLEAR_BIT(_map,_bit) \
+    ((_map)[(_bit)>>PR_BITS_PER_LONG_LOG2] &= ~(1L << ((_bit) & (PR_BITS_PER_LONG-1))))
+
+/*
+** Compute the log of the least power of 2 greater than or equal to n
+*/
+NSPR_API(PRIntn) PR_CeilingLog2(PRUint32 i);
+
+/*
+** Compute the log of the greatest power of 2 less than or equal to n
+*/
+NSPR_API(PRIntn) PR_FloorLog2(PRUint32 i);
+
+/*
+** Macro version of PR_CeilingLog2: Compute the log of the least power of
+** 2 greater than or equal to _n. The result is returned in _log2.
+*/
+#ifdef PR_HAVE_BUILTIN_BITSCAN32
+#define PR_CEILING_LOG2(_log2,_n)      \
+  PR_BEGIN_MACRO                       \
+    PRUint32 j_ = (PRUint32)(_n);      \
+    (_log2) = (j_ <= 1 ? 0 : 32 - pr_bitscan_clz32(j_ - 1)); \
+  PR_END_MACRO
+#else
+#define PR_CEILING_LOG2(_log2,_n)   \
+  PR_BEGIN_MACRO                    \
+    PRUint32 j_ = (PRUint32)(_n);   \
+    (_log2) = 0;                    \
+    if ((j_) & ((j_)-1))            \
+    (_log2) += 1;               \
+    if ((j_) >> 16)                 \
+    (_log2) += 16, (j_) >>= 16; \
+    if ((j_) >> 8)                  \
+    (_log2) += 8, (j_) >>= 8;   \
+    if ((j_) >> 4)                  \
+    (_log2) += 4, (j_) >>= 4;   \
+    if ((j_) >> 2)                  \
+    (_log2) += 2, (j_) >>= 2;   \
+    if ((j_) >> 1)                  \
+    (_log2) += 1;               \
+  PR_END_MACRO
+#endif /* PR_HAVE_BUILTIN_BITSCAN32 */
+
+/*
+** Macro version of PR_FloorLog2: Compute the log of the greatest power of
+** 2 less than or equal to _n. The result is returned in _log2.
+**
+** This is equivalent to finding the highest set bit in the word.
+*/
+#ifdef PR_HAVE_BUILTIN_BITSCAN32
+#define PR_FLOOR_LOG2(_log2,_n)     \
+  PR_BEGIN_MACRO                    \
+    PRUint32 j_ = (PRUint32)(_n);   \
+    (_log2) = 31 - pr_bitscan_clz32((j_) | 1); \
+  PR_END_MACRO
+#else
+#define PR_FLOOR_LOG2(_log2,_n)   \
+  PR_BEGIN_MACRO                    \
+    PRUint32 j_ = (PRUint32)(_n);   \
+    (_log2) = 0;                    \
+    if ((j_) >> 16)                 \
+    (_log2) += 16, (j_) >>= 16; \
+    if ((j_) >> 8)                  \
+    (_log2) += 8, (j_) >>= 8;   \
+    if ((j_) >> 4)                  \
+    (_log2) += 4, (j_) >>= 4;   \
+    if ((j_) >> 2)                  \
+    (_log2) += 2, (j_) >>= 2;   \
+    if ((j_) >> 1)                  \
+    (_log2) += 1;               \
+  PR_END_MACRO
+#endif /* PR_HAVE_BUILTIN_BITSCAN32 */
+
+/*
+** Macros for rotate left and right. The argument 'a' must be an unsigned
+** 32-bit integer type such as PRUint32.
+**
+** There is no rotate operation in the C Language, so the construct
+** (a << 4) | (a >> 28) is frequently used instead. Most compilers convert
+** this to a rotate instruction, but MSVC doesn't without a little help.
+** To get MSVC to generate a rotate instruction, we have to use the _rotl
+** or _rotr intrinsic and use a pragma to make it inline.
+**
+** Note: MSVC in VS2005 will do an inline rotate instruction on the above
+** construct.
+*/
+
+#if defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_AMD64) || \
+    defined(_M_X64) || defined(_M_ARM) || defined(_M_ARM64))
+#include <stdlib.h>
+#pragma intrinsic(_rotl, _rotr)
+#define PR_ROTATE_LEFT32(a, bits) _rotl(a, bits)
+#define PR_ROTATE_RIGHT32(a, bits) _rotr(a, bits)
+#else
+#define PR_ROTATE_LEFT32(a, bits) (((a) << (bits)) | ((a) >> (32 - (bits))))
+#define PR_ROTATE_RIGHT32(a, bits) (((a) >> (bits)) | ((a) << (32 - (bits))))
+#endif
+
+PR_END_EXTERN_C
+#endif /* prbit_h___ */
diff --git a/nsprpub/pr/include/prclist.h b/nsprpub/pr/include/prclist.h
new file mode 100644
index 0000000000..a069176055
--- /dev/null
+++ b/nsprpub/pr/include/prclist.h
@@ -0,0 +1,108 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prclist_h___
+#define prclist_h___
+
+#include "prtypes.h"
+
+typedef struct PRCListStr PRCList;
+
+/*
+** Circular linked list
+*/
+struct PRCListStr {
+    PRCList *next;
+    PRCList *prev;
+};
+
+/*
+** Insert element "_e" into the list, before "_l".
+*/
+#define PR_INSERT_BEFORE(_e,_l)  \
+    PR_BEGIN_MACRO       \
+    (_e)->next = (_l);   \
+    (_e)->prev = (_l)->prev; \
+    (_l)->prev->next = (_e); \
+    (_l)->prev = (_e);   \
+    PR_END_MACRO
+
+/*
+** Insert element "_e" into the list, after "_l".
+*/
+#define PR_INSERT_AFTER(_e,_l)   \
+    PR_BEGIN_MACRO       \
+    (_e)->next = (_l)->next; \
+    (_e)->prev = (_l);   \
+    (_l)->next->prev = (_e); \
+    (_l)->next = (_e);   \
+    PR_END_MACRO
+
+/*
+** Return the element following element "_e"
+*/
+#define PR_NEXT_LINK(_e)     \
+        ((_e)->next)
+/*
+** Return the element preceding element "_e"
+*/
+#define PR_PREV_LINK(_e)     \
+        ((_e)->prev)
+
+/*
+** Append an element "_e" to the end of the list "_l"
+*/
+#define PR_APPEND_LINK(_e,_l) PR_INSERT_BEFORE(_e,_l)
+
+/*
+** Insert an element "_e" at the head of the list "_l"
+*/
+#define PR_INSERT_LINK(_e,_l) PR_INSERT_AFTER(_e,_l)
+
+/* Return the head/tail of the list */
+#define PR_LIST_HEAD(_l) (_l)->next
+#define PR_LIST_TAIL(_l) (_l)->prev
+
+/*
+** Remove the element "_e" from it's circular list.
+*/
+#define PR_REMOVE_LINK(_e)         \
+    PR_BEGIN_MACRO             \
+    (_e)->prev->next = (_e)->next; \
+    (_e)->next->prev = (_e)->prev; \
+    PR_END_MACRO
+
+/*
+** Remove the element "_e" from it's circular list. Also initializes the
+** linkage.
+*/
+#define PR_REMOVE_AND_INIT_LINK(_e)    \
+    PR_BEGIN_MACRO             \
+    (_e)->prev->next = (_e)->next; \
+    (_e)->next->prev = (_e)->prev; \
+    (_e)->next = (_e);         \
+    (_e)->prev = (_e);         \
+    PR_END_MACRO
+
+/*
+** Return non-zero if the given circular list "_l" is empty, zero if the
+** circular list is not empty
+*/
+#define PR_CLIST_IS_EMPTY(_l) \
+    ((_l)->next == (_l))
+
+/*
+** Initialize a circular list
+*/
+#define PR_INIT_CLIST(_l)  \
+    PR_BEGIN_MACRO     \
+    (_l)->next = (_l); \
+    (_l)->prev = (_l); \
+    PR_END_MACRO
+
+#define PR_INIT_STATIC_CLIST(_l) \
+    {(_l), (_l)}
+
+#endif /* prclist_h___ */
diff --git a/nsprpub/pr/include/prcmon.h b/nsprpub/pr/include/prcmon.h
new file mode 100644
index 0000000000..69171138b2
--- /dev/null
+++ b/nsprpub/pr/include/prcmon.h
@@ -0,0 +1,66 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prcmon_h___
+#define prcmon_h___
+
+/*
+** Interface to cached monitors. Cached monitors use an address to find a
+** given PR monitor. In this way a monitor can be associated with another
+** object without preallocating a monitor for all objects.
+**
+** A hash table is used to quickly map addresses to individual monitors
+** and the system automatically grows the hash table as needed.
+**
+** Cache monitors are about 5 times slower to use than uncached monitors.
+*/
+#include "prmon.h"
+#include "prinrval.h"
+
+PR_BEGIN_EXTERN_C
+
+/**
+** Like PR_EnterMonitor except use the "address" to find a monitor in the
+** monitor cache. If successful, returns the PRMonitor now associated
+** with "address". Note that you must PR_CExitMonitor the address to
+** release the monitor cache entry (otherwise the monitor cache will fill
+** up). This call will return NULL if the monitor cache needs to be
+** expanded and the system is out of memory.
+*/
+NSPR_API(PRMonitor*) PR_CEnterMonitor(void *address);
+
+/*
+** Like PR_ExitMonitor except use the "address" to find a monitor in the
+** monitor cache.
+*/
+NSPR_API(PRStatus) PR_CExitMonitor(void *address);
+
+/*
+** Like PR_Wait except use the "address" to find a monitor in the
+** monitor cache.
+*/
+NSPR_API(PRStatus) PR_CWait(void *address, PRIntervalTime timeout);
+
+/*
+** Like PR_Notify except use the "address" to find a monitor in the
+** monitor cache.
+*/
+NSPR_API(PRStatus) PR_CNotify(void *address);
+
+/*
+** Like PR_NotifyAll except use the "address" to find a monitor in the
+** monitor cache.
+*/
+NSPR_API(PRStatus) PR_CNotifyAll(void *address);
+
+/*
+** Set a callback to be invoked each time a monitor is recycled from the cache
+** freelist, with the monitor's cache-key passed in address.
+*/
+NSPR_API(void) PR_CSetOnMonitorRecycle(void (PR_CALLBACK *callback)(void *address));
+
+PR_END_EXTERN_C
+
+#endif /* prcmon_h___ */
diff --git a/nsprpub/pr/include/prcountr.h b/nsprpub/pr/include/prcountr.h
new file mode 100644
index 0000000000..1503d06d83
--- /dev/null
+++ b/nsprpub/pr/include/prcountr.h
@@ -0,0 +1,525 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prcountr_h___
+#define prcountr_h___
+
+/*----------------------------------------------------------------------------
+** prcountr.h -- NSPR Instrumentation counters
+**
+** The NSPR Counter Feature provides a means to "count
+** something." Counters can be dynamically defined, incremented,
+** decremented, set, and deleted under application program
+** control.
+**
+** The Counter Feature is intended to be used as instrumentation,
+** not as operational data. If you need a counter for operational
+** data, use native integral types.
+**
+** Counters are 32bit unsigned intergers. On overflow, a counter
+** will wrap. No exception is recognized or reported.
+**
+** A counter can be dynamically created using a two level naming
+** convention. A "handle" is returned when the counter is
+** created. The counter can subsequently be addressed by its
+** handle. An API is provided to get an existing counter's handle
+** given the names with  which it was originally created.
+** Similarly, a counter's name can be retrieved given its handle.
+**
+** The counter naming convention is a two-level hierarchy. The
+** QName is the higher level of the hierarchy; RName is the
+** lower level. RNames can be thought of as existing within a
+** QName. The same RName can exist within multiple QNames. QNames
+** are unique. The NSPR Counter is not a near-zero overhead
+** feature. Application designers should be aware of
+** serialization issues when using the Counter API. Creating a
+** counter locks a large asset, potentially causing a stall. This
+** suggest that applications should create counters at component
+** initialization, for example, and not create and destroy them
+** willy-nilly. ... You have been warned.
+**
+** Incrementing and Adding to counters uses atomic operations.
+** The performance of these operations will vary from platform
+** to platform. On platforms where atomic operations are not
+** supported the overhead may be substantial.
+**
+** When traversing the counter database with FindNext functions,
+** the instantaneous values of any given counter is that at the
+** moment of extraction. The state of the entire counter database
+** may not be viewed as atomic.
+**
+** The counter interface may be disabled (No-Op'd) at compile
+** time. When DEBUG is defined at compile time, the Counter
+** Feature is compiled into NSPR and applications invoking it.
+** When DEBUG is not defined, the counter macros compile to
+** nothing. To force the Counter Feature to be compiled into an
+** optimized build, define FORCE_NSPR_COUNTERS at compile time
+** for both NSPR and the application intending to use it.
+**
+** Application designers should use the macro form of the Counter
+** Feature methods to minimize performance impact in optimized
+** builds. The macros normally compile to nothing on optimized
+** builds.
+**
+** Application designers should be aware of the effects of
+** debug and optimized build differences when using result of the
+** Counter Feature macros in expressions.
+**
+** The Counter Feature is thread-safe and SMP safe.
+**
+** /lth. 09-Jun-1998.
+*/
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+/*
+** Opaque counter handle type.
+** ... don't even think of looking in here.
+**
+*/
+typedef void *  PRCounterHandle;
+
+#define PRCOUNTER_NAME_MAX 31
+#define PRCOUNTER_DESC_MAX 255
+
+
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_DEFINE_COUNTER() -- Define a PRCounterHandle
+**
+** DESCRIPTION: PR_DEFINE_COUNTER() is used to define a counter
+** handle.
+**
+*/
+#define PR_DEFINE_COUNTER(name) PRCounterHandle name
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_INIT_COUNTER_HANDLE() -- Set the value of a PRCounterHandle
+**
+** DESCRIPTION:
+** PR_INIT_COUNTER_HANDLE() sets the value of a PRCounterHandle
+** to value.
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_COUNTERS)
+#define PR_INIT_COUNTER_HANDLE(handle,value)\
+    (handle) = (PRCounterHandle)(value)
+#else
+#define PR_INIT_COUNTER_HANDLE(handle,value)
+#endif
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_CreateCounter() -- Create a counter
+**
+** DESCRIPTION: PR_CreateCounter() creates a counter object and
+** initializes it to zero.
+**
+** The macro form takes as its first argument the name of the
+** PRCounterHandle to receive the handle returned from
+** PR_CreateCounter().
+**
+** INPUTS:
+**  qName: The QName for the counter object. The maximum length
+** of qName is defined by PRCOUNTER_NAME_MAX
+**
+**  rName: The RName for the counter object. The maximum length
+** of qName is defined by PRCOUNTER_NAME_MAX
+**
+**  descrioption: The description of the counter object. The
+** maximum length of description is defined by
+** PRCOUNTER_DESC_MAX.
+**
+** OUTPUTS:
+**
+** RETURNS:
+**  PRCounterHandle.
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_COUNTERS)
+#define PR_CREATE_COUNTER(handle,qName,rName,description)\
+   (handle) = PR_CreateCounter((qName),(rName),(description))
+#else
+#define PR_CREATE_COUNTER(handle,qName,rName,description)
+#endif
+
+NSPR_API(PRCounterHandle)
+PR_CreateCounter(
+    const char *qName,
+    const char *rName,
+    const char *description
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_DestroyCounter() -- Destroy a counter object.
+**
+** DESCRIPTION: PR_DestroyCounter() removes a counter and
+** unregisters its handle from the counter database.
+**
+** INPUTS:
+**  handle: the PRCounterHandle of the counter to be destroyed.
+**
+** OUTPUTS:
+**  The counter is destroyed.
+**
+** RETURNS: void
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_COUNTERS)
+#define PR_DESTROY_COUNTER(handle) PR_DestroyCounter((handle))
+#else
+#define PR_DESTROY_COUNTER(handle)
+#endif
+
+NSPR_API(void)
+PR_DestroyCounter(
+    PRCounterHandle handle
+);
+
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_GetCounterHandleFromName() -- Retreive a
+** counter's handle give its name.
+**
+** DESCRIPTION: PR_GetCounterHandleFromName() retreives a
+** counter's handle from the counter database, given the name
+** the counter was originally created with.
+**
+** INPUTS:
+**  qName: Counter's original QName.
+**  rName: Counter's original RName.
+**
+** OUTPUTS:
+**
+** RETURNS:
+**  PRCounterHandle or PRCounterError.
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_COUNTERS)
+#define PR_GET_COUNTER_HANDLE_FROM_NAME(handle,qName,rName)\
+    (handle) = PR_GetCounterHandleFromName((qName),(rName))
+#else
+#define PR_GET_COUNTER_HANDLE_FROM_NAME(handle,qName,rName)
+#endif
+
+NSPR_API(PRCounterHandle)
+PR_GetCounterHandleFromName(
+    const char *qName,
+    const char *rName
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_GetCounterNameFromHandle() -- Retreive a
+** counter's name, given its handle.
+**
+** DESCRIPTION: PR_GetCounterNameFromHandle() retreives a
+** counter's name given its handle.
+**
+** INPUTS:
+**  qName: Where to store a pointer to qName.
+**  rName: Where to store a pointer to rName.
+**  description: Where to store a pointer to description.
+**
+** OUTPUTS: Pointers to the Counter Feature's copies of the names
+** used when the counters were created.
+**
+** RETURNS: void
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_COUNTERS)
+#define PR_GET_COUNTER_NAME_FROM_HANDLE(handle,qName,rName,description)\
+    PR_GetCounterNameFromHandle((handle),(qName),(rName),(description))
+#else
+#define PR_GET_COUNTER_NAME_FROM_HANDLE(handle,qName,rName,description )
+#endif
+
+NSPR_API(void)
+PR_GetCounterNameFromHandle(
+    PRCounterHandle handle,
+    const char **qName,
+    const char **rName,
+    const char **description
+);
+
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_IncrementCounter() -- Add one to the referenced
+** counter.
+**
+** DESCRIPTION: Add one to the referenced counter.
+**
+** INPUTS:
+**  handle: The PRCounterHandle of the counter to be incremented
+**
+** OUTPUTS: The counter is incrementd.
+**
+** RETURNS: void
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_COUNTERS)
+#define PR_INCREMENT_COUNTER(handle) PR_IncrementCounter(handle)
+#else
+#define PR_INCREMENT_COUNTER(handle)
+#endif
+
+NSPR_API(void)
+PR_IncrementCounter(
+    PRCounterHandle handle
+);
+
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_DecrementCounter() -- Subtract one from the
+** referenced counter
+**
+** DESCRIPTION: Subtract one from the referenced counter.
+**
+** INPUTS:
+**  handle: The PRCounterHandle of the coutner to be
+** decremented.
+**
+** OUTPUTS: the counter is decremented.
+**
+** RETURNS: void
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_COUNTERS)
+#define PR_DECREMENT_COUNTER(handle) PR_DecrementCounter(handle)
+#else
+#define PR_DECREMENT_COUNTER(handle)
+#endif
+
+NSPR_API(void)
+PR_DecrementCounter(
+    PRCounterHandle handle
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_AddToCounter() -- Add a value to a counter.
+**
+** DESCRIPTION: Add value to the counter referenced by handle.
+**
+** INPUTS:
+**  handle: the PRCounterHandle of the counter to be added to.
+**
+**  value: the value to be added to the counter.
+**
+** OUTPUTS: new value for counter.
+**
+** RETURNS: void
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_COUNTERS)
+#define PR_ADD_TO_COUNTER(handle,value)\
+    PR_AddToCounter((handle),(value))
+#else
+#define PR_ADD_TO_COUNTER(handle,value)
+#endif
+
+NSPR_API(void)
+PR_AddToCounter(
+    PRCounterHandle handle,
+    PRUint32 value
+);
+
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_SubtractFromCounter() -- A value is subtracted
+** from a counter.
+**
+** DESCRIPTION:
+** Subtract a value from a counter.
+**
+** INPUTS:
+**  handle: the PRCounterHandle of the counter to be subtracted
+** from.
+**
+**  value: the value to be subtracted from the counter.
+**
+** OUTPUTS: new value for counter
+**
+** RETURNS: void
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_COUNTERS)
+#define PR_SUBTRACT_FROM_COUNTER(handle,value)\
+    PR_SubtractFromCounter((handle),(value))
+#else
+#define PR_SUBTRACT_FROM_COUNTER(handle,value)
+#endif
+
+NSPR_API(void)
+PR_SubtractFromCounter(
+    PRCounterHandle handle,
+    PRUint32 value
+);
+
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_GetCounter() -- Retreive the value of a counter
+**
+** DESCRIPTION:
+** Retreive the value of a counter.
+**
+** INPUTS:
+**  handle: the PR_CounterHandle of the counter to be retreived
+**
+** OUTPUTS:
+**
+** RETURNS: The value of the referenced counter
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_COUNTERS)
+#define PR_GET_COUNTER(counter,handle)\
+    (counter) = PR_GetCounter((handle))
+#else
+#define PR_GET_COUNTER(counter,handle) 0
+#endif
+
+NSPR_API(PRUint32)
+PR_GetCounter(
+    PRCounterHandle handle
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_SetCounter() -- Replace the content of counter
+** with value.
+**
+** DESCRIPTION: The contents of the referenced counter are
+** replaced by value.
+**
+** INPUTS:
+**  handle: the PRCounterHandle of the counter whose contents
+** are to be replaced.
+**
+**  value: the new value of the counter.
+**
+** OUTPUTS:
+**
+** RETURNS: void
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_COUNTERS)
+#define PR_SET_COUNTER(handle,value) PR_SetCounter((handle),(value))
+#else
+#define PR_SET_COUNTER(handle,value)
+#endif
+
+NSPR_API(void)
+PR_SetCounter(
+    PRCounterHandle handle,
+    PRUint32 value
+);
+
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_FindNextCounterQname() -- Retreive the next QName counter
+** handle iterator
+**
+** DESCRIPTION:
+** PR_FindNextCounterQname() retreives the first or next Qname
+** the counter data base, depending on the value of handle. When
+** handle is NULL, the function attempts to retreive the first
+** QName handle in the database. When handle is a handle previosly
+** retreived QName handle, then the function attempts to retreive
+** the next QName handle.
+**
+** INPUTS:
+**  handle: PRCounterHandle or NULL.
+**
+** OUTPUTS: returned
+**
+** RETURNS: PRCounterHandle or NULL when no more QName counter
+** handles are present.
+**
+** RESTRICTIONS:
+**  A concurrent PR_CreateCounter() or PR_DestroyCounter() may
+** cause unpredictable results.
+**
+** A PRCounterHandle returned from this function may only be used
+** in another PR_FindNextCounterQname() function call; other
+** operations may cause unpredictable results.
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_COUNTERS)
+#define PR_FIND_NEXT_COUNTER_QNAME(next,handle)\
+    (next) = PR_FindNextCounterQname((handle))
+#else
+#define PR_FIND_NEXT_COUNTER_QNAME(next,handle) NULL
+#endif
+
+NSPR_API(PRCounterHandle)
+PR_FindNextCounterQname(
+    PRCounterHandle handle
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_FindNextCounterRname() -- Retreive the next RName counter
+** handle iterator
+**
+** DESCRIPTION:
+** PR_FindNextCounterRname() retreives the first or next RNname
+** handle from the counter data base, depending on the
+** value of handle. When handle is NULL, the function attempts to
+** retreive the first RName handle in the database. When handle is
+** a handle previosly retreived RName handle, then the function
+** attempts to retreive the next RName handle.
+**
+** INPUTS:
+**  handle: PRCounterHandle or NULL.
+**  qhandle: PRCounterHandle of a previously aquired via
+** PR_FIND_NEXT_QNAME_HANDLE()
+**
+** OUTPUTS: returned
+**
+** RETURNS: PRCounterHandle or NULL when no more RName counter
+** handles are present.
+**
+** RESTRICTIONS:
+**  A concurrent PR_CreateCounter() or PR_DestroyCounter() may
+** cause unpredictable results.
+**
+** A PRCounterHandle returned from this function may only be used
+** in another PR_FindNextCounterRname() function call; other
+** operations may cause unpredictable results.
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_COUNTERS)
+#define PR_FIND_NEXT_COUNTER_RNAME(next,rhandle,qhandle)\
+    (next) = PR_FindNextCounterRname((rhandle),(qhandle))
+#else
+#define PR_FIND_NEXT_COUNTER_RNAME(next,rhandle,qhandle)
+#endif
+
+NSPR_API(PRCounterHandle)
+PR_FindNextCounterRname(
+    PRCounterHandle rhandle,
+    PRCounterHandle qhandle
+);
+
+PR_END_EXTERN_C
+
+#endif /* prcountr_h___ */
diff --git a/nsprpub/pr/include/prcvar.h b/nsprpub/pr/include/prcvar.h
new file mode 100644
index 0000000000..413a3646ac
--- /dev/null
+++ b/nsprpub/pr/include/prcvar.h
@@ -0,0 +1,94 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prcvar_h___
+#define prcvar_h___
+
+#include "prlock.h"
+#include "prinrval.h"
+
+PR_BEGIN_EXTERN_C
+
+typedef struct PRCondVar PRCondVar;
+
+/*
+** Create a new condition variable.
+**
+**  "lock" is the lock used to protect the condition variable.
+**
+** Condition variables are synchronization objects that threads can use
+** to wait for some condition to occur.
+**
+** This may fail if memory is tight or if some operating system resource
+** is low. In such cases, a NULL will be returned.
+*/
+NSPR_API(PRCondVar*) PR_NewCondVar(PRLock *lock);
+
+/*
+** Destroy a condition variable. There must be no thread
+** waiting on the condvar. The caller is responsible for guaranteeing
+** that the condvar is no longer in use.
+**
+*/
+NSPR_API(void) PR_DestroyCondVar(PRCondVar *cvar);
+
+/*
+** The thread that waits on a condition is blocked in a "waiting on
+** condition" state until another thread notifies the condition or a
+** caller specified amount of time expires. The lock associated with
+** the condition variable will be released, which must have be held
+** prior to the call to wait.
+**
+** Logically a notified thread is moved from the "waiting on condition"
+** state and made "ready." When scheduled, it will attempt to reacquire
+** the lock that it held when wait was called.
+**
+** The timeout has two well known values, PR_INTERVAL_NO_TIMEOUT and
+** PR_INTERVAL_NO_WAIT. The former value requires that a condition be
+** notified (or the thread interrupted) before it will resume from the
+** wait. If the timeout has a value of PR_INTERVAL_NO_WAIT, the effect
+** is to release the lock, possibly causing a rescheduling within the
+** runtime, then immediately attempting to reacquire the lock and resume.
+**
+** Any other value for timeout will cause the thread to be rescheduled
+** either due to explicit notification or an expired interval. The latter
+** must be determined by treating time as one part of the monitored data
+** being protected by the lock and tested explicitly for an expired
+** interval.
+**
+** Returns PR_FAILURE if the caller has not locked the lock associated
+** with the condition variable or the thread was interrupted (PR_Interrupt()).
+** The particular reason can be extracted with PR_GetError().
+*/
+NSPR_API(PRStatus) PR_WaitCondVar(PRCondVar *cvar, PRIntervalTime timeout);
+
+/*
+** Notify ONE thread that is currently waiting on 'cvar'. Which thread is
+** dependent on the implementation of the runtime. Common sense would dictate
+** that all threads waiting on a single condition have identical semantics,
+** therefore which one gets notified is not significant.
+**
+** The calling thead must hold the lock that protects the condition, as
+** well as the invariants that are tightly bound to the condition, when
+** notify is called.
+**
+** Returns PR_FAILURE if the caller has not locked the lock associated
+** with the condition variable.
+*/
+NSPR_API(PRStatus) PR_NotifyCondVar(PRCondVar *cvar);
+
+/*
+** Notify all of the threads waiting on the condition variable. The order
+** that the threads are notified is indeterminant. The lock that protects
+** the condition must be held.
+**
+** Returns PR_FAILURE if the caller has not locked the lock associated
+** with the condition variable.
+*/
+NSPR_API(PRStatus) PR_NotifyAllCondVar(PRCondVar *cvar);
+
+PR_END_EXTERN_C
+
+#endif /* prcvar_h___ */
diff --git a/nsprpub/pr/include/prdtoa.h b/nsprpub/pr/include/prdtoa.h
new file mode 100644
index 0000000000..312a9d60ad
--- /dev/null
+++ b/nsprpub/pr/include/prdtoa.h
@@ -0,0 +1,51 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prdtoa_h___
+#define prdtoa_h___
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+/*
+** PR_strtod() returns as a double-precision floating-point number
+** the  value represented by the character string pointed to by
+** s00. The string is scanned up to the first unrecognized
+** character.
+**a
+** If the value of se is not (char **)NULL, a  pointer  to
+** the  character terminating the scan is returned in the location pointed
+** to by se. If no number can be formed, se is set to s00, and
+** zero is returned.
+*/
+NSPR_API(PRFloat64)
+PR_strtod(const char *s00, char **se);
+
+/*
+** PR_cnvtf()
+** conversion routines for floating point
+** prcsn - number of digits of precision to generate floating
+** point value.
+*/
+NSPR_API(void) PR_cnvtf(char *buf, PRIntn bufsz, PRIntn prcsn, PRFloat64 fval);
+
+/*
+** PR_dtoa() converts double to a string.
+**
+** ARGUMENTS:
+** If rve is not null, *rve is set to point to the end of the return value.
+** If d is +-Infinity or NaN, then *decpt is set to 9999.
+**
+** mode:
+**     0 ==> shortest string that yields d when read in
+**           and rounded to nearest.
+*/
+NSPR_API(PRStatus) PR_dtoa(PRFloat64 d, PRIntn mode, PRIntn ndigits,
+                           PRIntn *decpt, PRIntn *sign, char **rve, char *buf, PRSize bufsize);
+
+PR_END_EXTERN_C
+
+#endif /* prdtoa_h___ */
diff --git a/nsprpub/pr/include/prenv.h b/nsprpub/pr/include/prenv.h
new file mode 100644
index 0000000000..550f05c936
--- /dev/null
+++ b/nsprpub/pr/include/prenv.h
@@ -0,0 +1,162 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prenv_h___
+#define prenv_h___
+
+#include "prtypes.h"
+
+/*******************************************************************************/
+/*******************************************************************************/
+/****************** THESE FUNCTIONS MAY NOT BE THREAD SAFE *********************/
+/*******************************************************************************/
+/*******************************************************************************/
+
+PR_BEGIN_EXTERN_C
+
+/*
+** PR_GetEnv() -- Retrieve value of environment variable
+**
+** Description:
+** PR_GetEnv() is modeled on Unix getenv().
+**
+**
+** Inputs:
+**   var -- The name of the environment variable
+**
+** Returns:
+**   The value of the environment variable 'var' or NULL if
+** the variable is undefined.
+**
+** Restrictions:
+**   You'd think that a POSIX getenv(), putenv() would be
+**   consistently implemented everywhere. Surprise! It is not. On
+**   some platforms, a putenv() where the argument is of
+**   the form "name"  causes the named environment variable to
+**   be un-set; that is: a subsequent getenv() returns NULL. On
+**   other platforms, the putenv() fails, on others, it is a
+**   no-op. Similarly, a putenv() where the argument is of the
+**   form "name=" causes the named environment variable to be
+**   un-set; a subsequent call to getenv() returns NULL. On
+**   other platforms, a subsequent call to getenv() returns a
+**   pointer to a null-string (a byte of zero).
+**
+**   PR_GetEnv(), PR_SetEnv() provide a consistent behavior
+**   across all supported platforms. There are, however, some
+**   restrictions and some practices you must use to achieve
+**   consistent results everywhere.
+**
+**   When manipulating the environment there is no way to un-set
+**   an environment variable across all platforms. We suggest
+**   you interpret the return of a pointer to null-string to
+**   mean the same as a return of NULL from PR_GetEnv().
+**
+**   A call to PR_SetEnv() where the parameter is of the form
+**   "name" will return PR_FAILURE; the environment remains
+**   unchanged. A call to PR_SetEnv() where the parameter is
+**   of the form "name=" may un-set the envrionment variable on
+**   some platforms; on others it may set the value of the
+**   environment variable to the null-string.
+**
+**   For example, to test for NULL return or return of the
+**   null-string from PR_GetEnv(), use the following code
+**   fragment:
+**
+**      char *val = PR_GetEnv("foo");
+**      if ((NULL == val) || ('\0' == *val)) {
+**          ... interpret this as un-set ...
+**      }
+**
+**   The caller must ensure that the string passed
+**   to PR_SetEnv() is persistent. That is: The string should
+**   not be on the stack, where it can be overwritten
+**   on return from the function calling PR_SetEnv().
+**   Similarly, the string passed to PR_SetEnv() must not be
+**   overwritten by other actions of the process. ... Some
+**   platforms use the string by reference rather than copying
+**   it into the environment space. ... You have been warned!
+**
+**   Use of platform-native functions that manipulate the
+**   environment (getenv(), putenv(),
+**   SetEnvironmentVariable(), etc.) must not be used with
+**   NSPR's similar functions. The platform-native functions
+**   may not be thread safe and/or may operate on different
+**   conceptual environment space than that operated upon by
+**   NSPR's functions or other environment manipulating
+**   functions on the same platform. (!)
+**
+*/
+NSPR_API(char*) PR_GetEnv(const char *var);
+
+/*
+** PR_GetEnvSecure() -- get a security-sensitive environment variable
+**
+** Description:
+**
+** PR_GetEnvSecure() is similar to PR_GetEnv(), but it returns NULL if
+** the program was run with elevated privilege (e.g., setuid or setgid
+** on Unix).  This can be used for cases like log file paths which
+** could otherwise be used for privilege escalation.  Note that some
+** platforms may have platform-specific privilege elevation mechanisms
+** not recognized by this function; see the implementation for details.
+*/
+NSPR_API(char*) PR_GetEnvSecure(const char *var);
+
+/*
+** PR_SetEnv() -- set, unset or change an environment variable
+**
+** Description:
+** PR_SetEnv() is modeled on the Unix putenv() function.
+**
+** Inputs:
+**   string -- pointer to a caller supplied
+**   constant, persistent string of the form name=value. Where
+**   name is the name of the environment variable to be set or
+**   changed; value is the value assigned to the variable.
+**
+** Returns:
+**   PRStatus.
+**
+** Restrictions:
+**   See the Restrictions documented in the description of
+**   PR_GetEnv() in this header file.
+**
+**
+*/
+NSPR_API(PRStatus) PR_SetEnv(const char *string);
+
+/*
+** PR_DuplicateEnvironment() -- Obtain a copy of the environment.
+**
+** Description:
+** PR_DuplicateEnvironment() copies the environment so that it can be
+** modified without changing the current process's environment, and
+** then passed to interfaces such as POSIX execve().  In particular,
+** this avoids needing to allocate memory or take locks in the child
+** after a fork(); neither of these is allowed by POSIX after a
+** multithreaded process calls fork(), and PR_SetEnv does both.
+**
+** Inputs:
+**   none
+**
+** Returns:
+**   A pointer to a null-terminated array of null-terminated strings,
+**   like the traditional global variable "environ".  The array and
+**   the strings are allocated with PR_Malloc(), and it is the
+**   caller's responsibility to free them.
+**
+**   In case of memory allocation failure, or if the operating system
+**   doesn't support reading the entire environment through the global
+**   variable "environ" or similar, returns NULL instead.
+**
+** Restrictions:
+**   Similarly to PR_GetEnv(), this function may not interoperate as
+**   expected with the operating system's native environment accessors.
+*/
+NSPR_API(char **) PR_DuplicateEnvironment(void);
+
+PR_END_EXTERN_C
+
+#endif /* prenv_h___ */
diff --git a/nsprpub/pr/include/prerr.h b/nsprpub/pr/include/prerr.h
new file mode 100644
index 0000000000..8512329e19
--- /dev/null
+++ b/nsprpub/pr/include/prerr.h
@@ -0,0 +1,249 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prerr_h___
+#define prerr_h___
+
+/*
+ *
+ * prerr.h
+ * This file is automatically generated; please do not edit it.
+ */
+
+/* Memory allocation attempt failed */
+#define PR_OUT_OF_MEMORY_ERROR                   (-6000L)
+
+/* Invalid file descriptor */
+#define PR_BAD_DESCRIPTOR_ERROR                  (-5999L)
+
+/* The operation would have blocked */
+#define PR_WOULD_BLOCK_ERROR                     (-5998L)
+
+/* Invalid memory address argument */
+#define PR_ACCESS_FAULT_ERROR                    (-5997L)
+
+/* Invalid function for file type */
+#define PR_INVALID_METHOD_ERROR                  (-5996L)
+
+/* Invalid memory address argument */
+#define PR_ILLEGAL_ACCESS_ERROR                  (-5995L)
+
+/* Some unknown error has occurred */
+#define PR_UNKNOWN_ERROR                         (-5994L)
+
+/* Operation interrupted by another thread */
+#define PR_PENDING_INTERRUPT_ERROR               (-5993L)
+
+/* function not implemented */
+#define PR_NOT_IMPLEMENTED_ERROR                 (-5992L)
+
+/* I/O function error */
+#define PR_IO_ERROR                              (-5991L)
+
+/* I/O operation timed out */
+#define PR_IO_TIMEOUT_ERROR                      (-5990L)
+
+/* I/O operation on busy file descriptor */
+#define PR_IO_PENDING_ERROR                      (-5989L)
+
+/* The directory could not be opened */
+#define PR_DIRECTORY_OPEN_ERROR                  (-5988L)
+
+/* Invalid function argument */
+#define PR_INVALID_ARGUMENT_ERROR                (-5987L)
+
+/* Network address not available (in use?) */
+#define PR_ADDRESS_NOT_AVAILABLE_ERROR           (-5986L)
+
+/* Network address type not supported */
+#define PR_ADDRESS_NOT_SUPPORTED_ERROR           (-5985L)
+
+/* Already connected */
+#define PR_IS_CONNECTED_ERROR                    (-5984L)
+
+/* Network address is invalid */
+#define PR_BAD_ADDRESS_ERROR                     (-5983L)
+
+/* Local Network address is in use */
+#define PR_ADDRESS_IN_USE_ERROR                  (-5982L)
+
+/* Connection refused by peer */
+#define PR_CONNECT_REFUSED_ERROR                 (-5981L)
+
+/* Network address is presently unreachable */
+#define PR_NETWORK_UNREACHABLE_ERROR             (-5980L)
+
+/* Connection attempt timed out */
+#define PR_CONNECT_TIMEOUT_ERROR                 (-5979L)
+
+/* Network file descriptor is not connected */
+#define PR_NOT_CONNECTED_ERROR                   (-5978L)
+
+/* Failure to load dynamic library */
+#define PR_LOAD_LIBRARY_ERROR                    (-5977L)
+
+/* Failure to unload dynamic library */
+#define PR_UNLOAD_LIBRARY_ERROR                  (-5976L)
+
+/* Symbol not found in any of the loaded dynamic libraries */
+#define PR_FIND_SYMBOL_ERROR                     (-5975L)
+
+/* Insufficient system resources */
+#define PR_INSUFFICIENT_RESOURCES_ERROR          (-5974L)
+
+/* A directory lookup on a network address has failed */
+#define PR_DIRECTORY_LOOKUP_ERROR                (-5973L)
+
+/* Attempt to access a TPD key that is out of range */
+#define PR_TPD_RANGE_ERROR                       (-5972L)
+
+/* Process open FD table is full */
+#define PR_PROC_DESC_TABLE_FULL_ERROR            (-5971L)
+
+/* System open FD table is full */
+#define PR_SYS_DESC_TABLE_FULL_ERROR             (-5970L)
+
+/* Network operation attempted on non-network file descriptor */
+#define PR_NOT_SOCKET_ERROR                      (-5969L)
+
+/* TCP-specific function attempted on a non-TCP file descriptor */
+#define PR_NOT_TCP_SOCKET_ERROR                  (-5968L)
+
+/* TCP file descriptor is already bound */
+#define PR_SOCKET_ADDRESS_IS_BOUND_ERROR         (-5967L)
+
+/* Access Denied */
+#define PR_NO_ACCESS_RIGHTS_ERROR                (-5966L)
+
+/* The requested operation is not supported by the platform */
+#define PR_OPERATION_NOT_SUPPORTED_ERROR         (-5965L)
+
+/* The host operating system does not support the protocol requested */
+#define PR_PROTOCOL_NOT_SUPPORTED_ERROR          (-5964L)
+
+/* Access to the remote file has been severed */
+#define PR_REMOTE_FILE_ERROR                     (-5963L)
+
+/* The value requested is too large to be stored in the data buffer provided */
+#define PR_BUFFER_OVERFLOW_ERROR                 (-5962L)
+
+/* TCP connection reset by peer */
+#define PR_CONNECT_RESET_ERROR                   (-5961L)
+
+/* Unused */
+#define PR_RANGE_ERROR                           (-5960L)
+
+/* The operation would have deadlocked */
+#define PR_DEADLOCK_ERROR                        (-5959L)
+
+/* The file is already locked */
+#define PR_FILE_IS_LOCKED_ERROR                  (-5958L)
+
+/* Write would result in file larger than the system allows */
+#define PR_FILE_TOO_BIG_ERROR                    (-5957L)
+
+/* The device for storing the file is full */
+#define PR_NO_DEVICE_SPACE_ERROR                 (-5956L)
+
+/* Unused */
+#define PR_PIPE_ERROR                            (-5955L)
+
+/* Unused */
+#define PR_NO_SEEK_DEVICE_ERROR                  (-5954L)
+
+/* Cannot perform a normal file operation on a directory */
+#define PR_IS_DIRECTORY_ERROR                    (-5953L)
+
+/* Symbolic link loop */
+#define PR_LOOP_ERROR                            (-5952L)
+
+/* File name is too long */
+#define PR_NAME_TOO_LONG_ERROR                   (-5951L)
+
+/* File not found */
+#define PR_FILE_NOT_FOUND_ERROR                  (-5950L)
+
+/* Cannot perform directory operation on a normal file */
+#define PR_NOT_DIRECTORY_ERROR                   (-5949L)
+
+/* Cannot write to a read-only file system */
+#define PR_READ_ONLY_FILESYSTEM_ERROR            (-5948L)
+
+/* Cannot delete a directory that is not empty */
+#define PR_DIRECTORY_NOT_EMPTY_ERROR             (-5947L)
+
+/* Cannot delete or rename a file object while the file system is busy */
+#define PR_FILESYSTEM_MOUNTED_ERROR              (-5946L)
+
+/* Cannot rename a file to a file system on another device */
+#define PR_NOT_SAME_DEVICE_ERROR                 (-5945L)
+
+/* The directory object in the file system is corrupted */
+#define PR_DIRECTORY_CORRUPTED_ERROR             (-5944L)
+
+/* Cannot create or rename a filename that already exists */
+#define PR_FILE_EXISTS_ERROR                     (-5943L)
+
+/* Directory is full.  No additional filenames may be added */
+#define PR_MAX_DIRECTORY_ENTRIES_ERROR           (-5942L)
+
+/* The required device was in an invalid state */
+#define PR_INVALID_DEVICE_STATE_ERROR            (-5941L)
+
+/* The device is locked */
+#define PR_DEVICE_IS_LOCKED_ERROR                (-5940L)
+
+/* No more entries in the directory */
+#define PR_NO_MORE_FILES_ERROR                   (-5939L)
+
+/* Encountered end of file */
+#define PR_END_OF_FILE_ERROR                     (-5938L)
+
+/* Seek error */
+#define PR_FILE_SEEK_ERROR                       (-5937L)
+
+/* The file is busy */
+#define PR_FILE_IS_BUSY_ERROR                    (-5936L)
+
+/* The I/O operation was aborted */
+#define PR_OPERATION_ABORTED_ERROR               (-5935L)
+
+/* Operation is still in progress (probably a non-blocking connect) */
+#define PR_IN_PROGRESS_ERROR                     (-5934L)
+
+/* Operation has already been initiated (probably a non-blocking connect) */
+#define PR_ALREADY_INITIATED_ERROR               (-5933L)
+
+/* The wait group is empty */
+#define PR_GROUP_EMPTY_ERROR                     (-5932L)
+
+/* Object state improper for request */
+#define PR_INVALID_STATE_ERROR                   (-5931L)
+
+/* Network is down */
+#define PR_NETWORK_DOWN_ERROR                    (-5930L)
+
+/* Socket shutdown */
+#define PR_SOCKET_SHUTDOWN_ERROR                 (-5929L)
+
+/* Connection aborted */
+#define PR_CONNECT_ABORTED_ERROR                 (-5928L)
+
+/* Host is unreachable */
+#define PR_HOST_UNREACHABLE_ERROR                (-5927L)
+
+/* The library is not loaded */
+#define PR_LIBRARY_NOT_LOADED_ERROR              (-5926L)
+
+/* The one-time function was previously called and failed. Its error code is no longer available */
+#define PR_CALL_ONCE_ERROR                       (-5925L)
+
+/* Placeholder for the end of the list */
+#define PR_MAX_ERROR                             (-5924L)
+
+extern void nspr_InitializePRErrorTable(void);
+#define ERROR_TABLE_BASE_nspr (-6000L)
+
+#endif /* prerr_h___ */
diff --git a/nsprpub/pr/include/prerror.h b/nsprpub/pr/include/prerror.h
new file mode 100644
index 0000000000..f445aa90aa
--- /dev/null
+++ b/nsprpub/pr/include/prerror.h
@@ -0,0 +1,294 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prerror_h___
+#define prerror_h___
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+typedef PRInt32 PRErrorCode;
+
+#define PR_NSPR_ERROR_BASE -6000
+
+#include "prerr.h"
+
+/*
+** Set error will preserve an error condition within a thread context.
+** The values stored are the NSPR (platform independent) translation of
+** the error. Also, if available, the platform specific oserror is stored.
+** If there is no appropriate OS error number, a zero my be supplied.
+*/
+NSPR_API(void) PR_SetError(PRErrorCode errorCode, PRInt32 oserr);
+
+/*
+** The text value specified may be NULL. If it is not NULL and the text length
+** is zero, the string is assumed to be a null terminated C string. Otherwise
+** the text is assumed to be the length specified and possibly include NULL
+** characters (e.g., a multi-national string).
+**
+** The text will be copied into to thread structure and remain there
+** until the next call to PR_SetError.
+*/
+NSPR_API(void) PR_SetErrorText(
+    PRIntn textLength, const char *text);
+
+/*
+** Return the current threads last set error code.
+*/
+NSPR_API(PRErrorCode) PR_GetError(void);
+
+/*
+** Return the current threads last set os error code. This is used for
+** machine specific code that desires the underlying os error.
+*/
+NSPR_API(PRInt32) PR_GetOSError(void);
+
+/*
+** Get the length of the error text. If a zero is returned, then there
+** is no text. Otherwise, the value returned is sufficient to contain
+** the error text currently available.
+*/
+NSPR_API(PRInt32) PR_GetErrorTextLength(void);
+
+/*
+** Copy the current threads current error text. Then actual number of bytes
+** copied is returned as the result. If the result is zero, the 'text' area
+** is unaffected.
+*/
+NSPR_API(PRInt32) PR_GetErrorText(char *text);
+
+
+/*
+Copyright (C) 1987, 1988 Student Information Processing Board of the
+Massachusetts Institute of Technology.
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted, provided
+that the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the names of M.I.T. and the M.I.T. S.I.P.B. not be
+used in advertising or publicity pertaining to distribution of the software
+without specific, written prior permission.  M.I.T. and the M.I.T. S.I.P.B.
+make no representations about the suitability of this software for any
+purpose.  It is provided "as is" without express or implied warranty.
+*/
+
+
+/*
+ * NOTE:
+ *      The interfaces for error-code-translation described in the rest of
+ *      this file are preliminary in the 3.1 release of nspr and are subject
+ *      to change in future releases.
+ */
+
+/*
+** Description: Localizable error code to string function.
+**
+**
+** NSPR provides a mechanism for converting an error code to a
+** descriptive string, in a caller-specified language.
+**
+** Error codes themselves are 32 bit (signed) integers.  Typically,
+** the high order 24 bits are an identifier of which error table the
+** error code is from, and the low order 8 bits are a sequential error
+** number within the table.  NSPR supports error tables whose first
+** error code is not a multiple of 256, such error code assignments
+** should be avoided when possible.
+**
+** Error table 0 is defined to match the UNIX system call error table
+** (sys_errlist); this allows errno values to be used directly in the
+** library.  Other error table numbers are typically formed by
+** compacting together the first four characters of the error table
+** name.  The mapping between characters in the name and numeric
+** values in the error code are defined in a system-independent
+** fashion, so that two systems that can pass integral values between
+** them can reliably pass error codes without loss of meaning; this
+** should work even if the character sets used are not the
+** same. (However, if this is to be done, error table 0 should be
+** avoided, since the local system call error tables may differ.)
+**
+** Libraries defining error codes need only provide a table mapping
+** error code numbers to names and default English descriptions,
+** calling a routine to install the table, making it ``known'' to NSPR
+** library.  Once installed, a table may not be removed.  Any error
+** code the library generates can be converted to the corresponding
+** error message.  There is also a default format for error codes
+** accidentally returned before making the table known, which is of
+** the form "unknown code foo 32", where "foo" would be the name of
+** the table.
+**
+** Normally, the error code conversion routine only supports the
+** languages "i-default" and "en", returning the error-table-provided
+** English description for both languages.  The application may
+** provide a localization plugin, allowing support for additional
+** languages.
+**
+**/
+
+/**********************************************************************/
+/************************* TYPES AND CONSTANTS ************************/
+/**********************************************************************/
+
+/*
+ * PRLanguageCode --
+ *
+ *    NSPR represents a language code as a non-negative integer.
+ *    Languages 0 is always "i-default" the language you get without
+ *    explicit negotiation.  Language 1 is always "en", English
+ *    which has been explicitly negotiated.  Additional language
+ *    codes are defined by an application-provided localization plugin.
+ */
+typedef PRUint32 PRLanguageCode;
+#define PR_LANGUAGE_I_DEFAULT 0 /* i-default, the default language */
+#define PR_LANGUAGE_EN 1 /* English, explicitly negotiated */
+
+/*
+ * struct PRErrorMessage --
+ *
+ *    An error message in an error table.
+ */
+struct PRErrorMessage {
+    const char * name;    /* Macro name for error */
+    const char * en_text; /* Default English text */
+};
+
+/*
+ * struct PRErrorTable --
+ *
+ *    An error table, provided by a library.
+ */
+struct PRErrorTable {
+    const struct PRErrorMessage * msgs; /* Array of error information */
+    const char *name; /* Name of error table source */
+    PRErrorCode base; /* Error code for first error in table */
+    int n_msgs; /* Number of codes in table */
+};
+
+/*
+ * struct PRErrorCallbackPrivate --
+ *
+ *    A private structure for the localization plugin
+ */
+struct PRErrorCallbackPrivate;
+
+/*
+ * struct PRErrorCallbackTablePrivate --
+ *
+ *    A data structure under which the localization plugin may store information,
+ *    associated with an error table, that is private to itself.
+ */
+struct PRErrorCallbackTablePrivate;
+
+/*
+ * PRErrorCallbackLookupFn --
+ *
+ *    A function of PRErrorCallbackLookupFn type is a localization
+ *    plugin callback which converts an error code into a description
+ *    in the requested language.  The callback is provided the
+ *    appropriate error table, private data for the plugin and the table.
+ *    The callback returns the appropriate UTF-8 encoded description, or NULL
+ *    if no description can be found.
+ */
+typedef const char *
+PRErrorCallbackLookupFn(PRErrorCode code, PRLanguageCode language,
+                        const struct PRErrorTable *table,
+                        struct PRErrorCallbackPrivate *cb_private,
+                        struct PRErrorCallbackTablePrivate *table_private);
+
+/*
+ * PRErrorCallbackNewTableFn --
+ *
+ *    A function PRErrorCallbackNewTableFn type is a localization plugin
+ *    callback which is called once with each error table registered
+ *    with NSPR.  The callback is provided with the error table and
+ *    the plugin's private structure.  The callback returns any table private
+ *    data it wishes to associate with the error table.  Does not need to be thread
+ *    safe.
+ */
+typedef struct PRErrorCallbackTablePrivate *
+PRErrorCallbackNewTableFn(const struct PRErrorTable *table,
+                          struct PRErrorCallbackPrivate *cb_private);
+
+/**********************************************************************/
+/****************************** FUNCTIONS *****************************/
+/**********************************************************************/
+
+/***********************************************************************
+** FUNCTION:    PR_ErrorToString
+** DESCRIPTION:
+**  Returns the UTF-8 message for an error code in
+**  the requested language.  May return the message
+**  in the default language if a translation in the requested
+**  language is not available.  The returned string is
+**  valid for the duration of the process.  Never returns NULL.
+**
+***********************************************************************/
+NSPR_API(const char *) PR_ErrorToString(PRErrorCode code,
+                                        PRLanguageCode language);
+
+
+/***********************************************************************
+** FUNCTION:    PR_ErrorToName
+** DESCRIPTION:
+**  Returns the macro name for an error code, or NULL
+**  if the error code is not known.  The returned string is
+**  valid for the duration of the process.
+**
+**  Does not work for error table 0, the system error codes.
+**
+***********************************************************************/
+NSPR_API(const char *) PR_ErrorToName(PRErrorCode code);
+
+
+/***********************************************************************
+** FUNCTION:    PR_ErrorLanguages
+** DESCRIPTION:
+**  Returns the RFC 1766 language tags for the language
+**  codes PR_ErrorToString() supports.  The returned array is valid
+**  for the duration of the process.  Never returns NULL.  The first
+**  item in the returned array is the language tag for PRLanguageCode 0,
+**  the second is for PRLanguageCode 1, and so on.  The array is terminated
+**  with a null pointer.
+**
+***********************************************************************/
+NSPR_API(const char * const *) PR_ErrorLanguages(void);
+
+
+/***********************************************************************
+** FUNCTION:    PR_ErrorInstallTable
+** DESCRIPTION:
+**  Registers an error table with NSPR.  Must be done exactly once per
+**  table.  Memory pointed to by `table' must remain valid for the life
+**  of the process.
+**
+**  NOT THREAD SAFE!
+**
+***********************************************************************/
+NSPR_API(PRErrorCode) PR_ErrorInstallTable(const struct PRErrorTable *table);
+
+
+/***********************************************************************
+** FUNCTION:    PR_ErrorInstallCallback
+** DESCRIPTION:
+**  Registers an error localization plugin with NSPR.  May be called
+**  at most one time.  `languages' contains the language codes supported
+**  by this plugin.  Languages 0 and 1 must be "i-default" and "en"
+**  respectively.  `lookup' and `newtable' contain pointers to
+**  the plugin callback functions.  `cb_private' contains any information
+**  private to the plugin functions.
+**
+**  NOT THREAD SAFE!
+**
+***********************************************************************/
+NSPR_API(void) PR_ErrorInstallCallback(const char * const * languages,
+                                       PRErrorCallbackLookupFn *lookup,
+                                       PRErrorCallbackNewTableFn *newtable,
+                                       struct PRErrorCallbackPrivate *cb_private);
+
+PR_END_EXTERN_C
+
+#endif /* prerror_h___ */
diff --git a/nsprpub/pr/include/prinet.h b/nsprpub/pr/include/prinet.h
new file mode 100644
index 0000000000..b743ef63ef
--- /dev/null
+++ b/nsprpub/pr/include/prinet.h
@@ -0,0 +1,99 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * File:        prinet.h
+ * Description:
+ *     Header file used to find the system header files for socket support[1].
+ *     This file serves the following purposes:
+ *     - A cross-platform, "get-everything" socket header file.  On
+ *       Unix, socket support is scattered in several header files,
+ *       while Windows has a "get-everything" socket header file[2].
+ *     - NSPR needs the following macro definitions and function
+ *       prototype declarations from these header files:
+ *           AF_INET
+ *           INADDR_ANY, INADDR_LOOPBACK, INADDR_BROADCAST
+ *           ntohl(), ntohs(), htonl(), ntons().
+ *       NSPR does not define its own versions of these macros and
+ *       functions.  It simply uses the native versions, which have
+ *       the same names on all supported platforms.
+ *     This file is intended to be included by NSPR public header
+ *     files, such as prio.h.  One should not include this file directly.
+ *
+ * Notes:
+ *     1. This file should have been an internal header.  Please do not
+ *        depend on it to pull in the system header files you need.
+ *     2. WARNING: This file is no longer cross-platform as it is a no-op
+ *        for WIN32!  See the comment in the WIN32 section for details.
+ */
+
+#ifndef prinet_h__
+#define prinet_h__
+
+#if defined(XP_UNIX) || defined(XP_OS2)
+#include <sys/types.h>
+#include <sys/socket.h>     /* AF_INET */
+#include <netinet/in.h>         /* INADDR_ANY, ..., ntohl(), ... */
+#ifdef XP_OS2
+#include <sys/ioctl.h>
+#endif
+#ifdef XP_UNIX
+#ifdef AIX
+/*
+ * On AIX 4.3, the header <arpa/inet.h> refers to struct
+ * ether_addr and struct sockaddr_dl that are not declared.
+ * The following struct declarations eliminate the compiler
+ * warnings.
+ */
+struct ether_addr;
+struct sockaddr_dl;
+#endif /* AIX */
+#include <arpa/inet.h>
+#endif /* XP_UNIX */
+#include <netdb.h>
+
+#if defined(BSDI) || defined(QNX)
+#include <rpc/types.h> /* the only place that defines INADDR_LOOPBACK */
+#endif
+
+/*
+ * OS/2 hack.  For some reason INADDR_LOOPBACK is not defined in the
+ * socket headers.
+ */
+#if defined(OS2) && !defined(INADDR_LOOPBACK)
+#define INADDR_LOOPBACK 0x7f000001
+#endif
+
+/*
+ * Prototypes of ntohl() etc. are declared in <machine/endian.h>
+ * on these platforms.
+ */
+#if defined(BSDI)
+#include <machine/endian.h>
+#endif
+
+/* On Android, ntohl() etc. are declared in <sys/endian.h>. */
+#ifdef __ANDROID__
+#include <sys/endian.h>
+#endif
+
+#elif defined(WIN32)
+
+/*
+ * Do not include any system header files.
+ *
+ * Originally we were including <windows.h>.  It slowed down the
+ * compilation of files that included NSPR headers, so we removed
+ * the <windows.h> inclusion at customer's request, which created
+ * an unfortunate inconsistency with other platforms.
+ */
+
+#else
+
+#error Unknown platform
+
+#endif
+
+#endif /* prinet_h__ */
diff --git a/nsprpub/pr/include/prinit.h b/nsprpub/pr/include/prinit.h
new file mode 100644
index 0000000000..b00fe2c065
--- /dev/null
+++ b/nsprpub/pr/include/prinit.h
@@ -0,0 +1,215 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prinit_h___
+#define prinit_h___
+
+#include "prthread.h"
+#include "prtypes.h"
+#include "prwin16.h"
+#include <stdio.h>
+
+PR_BEGIN_EXTERN_C
+
+/************************************************************************/
+/**************************IDENTITY AND VERSIONING***********************/
+/************************************************************************/
+
+/*
+** NSPR's name, this should persist until at least the turn of the
+** century.
+*/
+#define PR_NAME     "NSPR"
+
+/*
+** NSPR's version is used to determine the likelihood that the version you
+** used to build your component is anywhere close to being compatible with
+** what is in the underlying library.
+**
+** The format of the version string is
+**     "<major version>.<minor version>[.<patch level>] [<Beta>]"
+*/
+#define PR_VERSION  "4.29"
+#define PR_VMAJOR   4
+#define PR_VMINOR   29
+#define PR_VPATCH   0
+#define PR_BETA     PR_FALSE
+
+/*
+** PRVersionCheck
+**
+** The basic signature of the function that is called to provide version
+** checking. The result will be a boolean that indicates the likelihood
+** that the underling library will perform as the caller expects.
+**
+** The only argument is a string, which should be the verson identifier
+** of the library in question. That string will be compared against an
+** equivalent string that represents the actual build version of the
+** exporting library.
+**
+** The result will be the logical union of the directly called library
+** and all dependent libraries.
+*/
+
+typedef PRBool (*PRVersionCheck)(const char*);
+
+/*
+** PR_VersionCheck
+**
+** NSPR's existance proof of the version check function.
+**
+** Note that NSPR has no cooperating dependencies.
+*/
+
+NSPR_API(PRBool) PR_VersionCheck(const char *importedVersion);
+
+/*
+ * Returns a const string of the NSPR library version.
+ */
+NSPR_API(const char*) PR_GetVersion(void);
+
+
+/************************************************************************/
+/*******************************INITIALIZATION***************************/
+/************************************************************************/
+
+/*
+** Initialize the runtime. Attach a thread object to the currently
+** executing native thread of type "type".
+**
+** The specificaiton of 'maxPTDs' is ignored.
+*/
+NSPR_API(void) PR_Init(
+    PRThreadType type, PRThreadPriority priority, PRUintn maxPTDs);
+
+/*
+** And alternate form of initialization, one that may become the default if
+** not the only mechanism, provides a method to get the NSPR runtime init-
+** ialized and place NSPR between the caller and the runtime library. This
+** allows main() to be treated as any other thread root function, signalling
+** its compeletion by returning and allowing the runtime to coordinate the
+** completion of the other threads of the runtime.
+**
+** The priority of the main (or primordial) thread will be PR_PRIORITY_NORMAL.
+** The thread may adjust its own priority by using PR_SetPriority(), though
+** at this time the support for priorities is somewhat weak.
+**
+** The specificaiton of 'maxPTDs' is ignored.
+**
+** The value returned by PR_Initialize is the value returned from the root
+** function, 'prmain'.
+*/
+
+typedef PRIntn (PR_CALLBACK *PRPrimordialFn)(PRIntn argc, char **argv);
+
+NSPR_API(PRIntn) PR_Initialize(
+    PRPrimordialFn prmain, PRIntn argc, char **argv, PRUintn maxPTDs);
+
+/*
+** Return PR_TRUE if PR_Init has already been called.
+*/
+NSPR_API(PRBool) PR_Initialized(void);
+
+/*
+ * Perform a graceful shutdown of NSPR.  PR_Cleanup() may be called by
+ * the primordial thread near the end of the main() function.
+ *
+ * PR_Cleanup() attempts to synchronize the natural termination of
+ * process.  It does that by blocking the caller, if and only if it is
+ * the primordial thread, until the number of user threads has dropped
+ * to zero.  When the primordial thread returns from main(), the process
+ * will immediately and silently exit.  That is, it will (if necessary)
+ * forcibly terminate any existing threads and exit without significant
+ * blocking and there will be no error messages or core files.
+ *
+ * PR_Cleanup() returns PR_SUCCESS if NSPR is successfully shutdown,
+ * or PR_FAILURE if the calling thread of this function is not the
+ * primordial thread.
+ */
+NSPR_API(PRStatus) PR_Cleanup(void);
+
+/*
+** Disable Interrupts
+**      Disables timer signals used for pre-emptive scheduling.
+*/
+NSPR_API(void) PR_DisableClockInterrupts(void);
+
+/*
+** Enables Interrupts
+**      Enables timer signals used for pre-emptive scheduling.
+*/
+NSPR_API(void) PR_EnableClockInterrupts(void);
+
+/*
+** Block Interrupts
+**      Blocks the timer signal used for pre-emptive scheduling
+*/
+NSPR_API(void) PR_BlockClockInterrupts(void);
+
+/*
+** Unblock Interrupts
+**      Unblocks the timer signal used for pre-emptive scheduling
+*/
+NSPR_API(void) PR_UnblockClockInterrupts(void);
+
+/*
+** Create extra virtual processor threads. Generally used with MP systems.
+*/
+NSPR_API(void) PR_SetConcurrency(PRUintn numCPUs);
+
+/*
+** Control the method and size of the file descriptor (PRFileDesc*)
+** cache used by the runtime. Setting 'high' to zero is for performance,
+** any other value probably for debugging (see memo on FD caching).
+*/
+NSPR_API(PRStatus) PR_SetFDCacheSize(PRIntn low, PRIntn high);
+
+/*
+ * Cause an immediate, nongraceful, forced termination of the process.
+ * It takes a PRIntn argument, which is the exit status code of the
+ * process.
+ */
+NSPR_API(void) PR_ProcessExit(PRIntn status);
+
+/*
+** Abort the process in a non-graceful manner. This will cause a core file,
+** call to the debugger or other moral equivalent as well as causing the
+** entire process to stop.
+*/
+NSPR_API(void) PR_Abort(void);
+
+/*
+ ****************************************************************
+ *
+ * Module initialization:
+ *
+ ****************************************************************
+ */
+
+typedef struct PRCallOnceType {
+    PRIntn initialized;
+    PRInt32 inProgress;
+    PRStatus status;
+} PRCallOnceType;
+
+typedef PRStatus (PR_CALLBACK *PRCallOnceFN)(void);
+
+typedef PRStatus (PR_CALLBACK *PRCallOnceWithArgFN)(void *arg);
+
+NSPR_API(PRStatus) PR_CallOnce(
+    PRCallOnceType *once,
+    PRCallOnceFN    func
+);
+
+NSPR_API(PRStatus) PR_CallOnceWithArg(
+    PRCallOnceType      *once,
+    PRCallOnceWithArgFN  func,
+    void                *arg
+);
+
+
+PR_END_EXTERN_C
+
+#endif /* prinit_h___ */
diff --git a/nsprpub/pr/include/prinrval.h b/nsprpub/pr/include/prinrval.h
new file mode 100644
index 0000000000..7797291d63
--- /dev/null
+++ b/nsprpub/pr/include/prinrval.h
@@ -0,0 +1,146 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** File:        prinrval.h
+** Description: API to interval timing functions of NSPR.
+**
+**
+** NSPR provides interval times that are independent of network time
+** of day values. Interval times are (in theory) accurate regardless
+** of host processing requirements and also very cheap to acquire. It
+** is expected that getting an interval time while in a synchronized
+** function (holding one's lock).
+**/
+
+#if !defined(prinrval_h)
+#define prinrval_h
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+/**********************************************************************/
+/************************* TYPES AND CONSTANTS ************************/
+/**********************************************************************/
+
+typedef PRUint32 PRIntervalTime;
+
+/***********************************************************************
+** DEFINES:     PR_INTERVAL_MIN
+**              PR_INTERVAL_MAX
+** DESCRIPTION:
+**  These two constants define the range (in ticks / second) of the
+**  platform dependent type, PRIntervalTime. These constants bound both
+**  the period and the resolution of a PRIntervalTime.
+***********************************************************************/
+#define PR_INTERVAL_MIN 1000UL
+#define PR_INTERVAL_MAX 100000UL
+
+/***********************************************************************
+** DEFINES:     PR_INTERVAL_NO_WAIT
+**              PR_INTERVAL_NO_TIMEOUT
+** DESCRIPTION:
+**  Two reserved constants are defined in the PRIntervalTime namespace.
+**  They are used to indicate that the process should wait no time (return
+**  immediately) or wait forever (never time out), respectively.
+**  Note: PR_INTERVAL_NO_TIMEOUT passed as input to PR_Connect is
+**  interpreted as use the OS's connect timeout.
+**
+***********************************************************************/
+#define PR_INTERVAL_NO_WAIT 0UL
+#define PR_INTERVAL_NO_TIMEOUT 0xffffffffUL
+
+/**********************************************************************/
+/****************************** FUNCTIONS *****************************/
+/**********************************************************************/
+
+/***********************************************************************
+** FUNCTION:    PR_IntervalNow
+** DESCRIPTION:
+**  Return the value of NSPR's free running interval timer. That timer
+**  can be used to establish epochs and determine intervals (be computing
+**  the difference between two times).
+** INPUTS:      void
+** OUTPUTS:     void
+** RETURN:      PRIntervalTime
+**
+** SIDE EFFECTS:
+**  None
+** RESTRICTIONS:
+**  The units of PRIntervalTime are platform dependent. They are chosen
+**  such that they are appropriate for the host OS, yet provide sufficient
+**  resolution and period to be useful to clients.
+** MEMORY:      N/A
+** ALGORITHM:   Platform dependent
+***********************************************************************/
+NSPR_API(PRIntervalTime) PR_IntervalNow(void);
+
+/***********************************************************************
+** FUNCTION:    PR_TicksPerSecond
+** DESCRIPTION:
+**  Return the number of ticks per second for PR_IntervalNow's clock.
+**  The value will be in the range [PR_INTERVAL_MIN..PR_INTERVAL_MAX].
+** INPUTS:      void
+** OUTPUTS:     void
+** RETURN:      PRUint32
+**
+** SIDE EFFECTS:
+**  None
+** RESTRICTIONS:
+**  None
+** MEMORY:      N/A
+** ALGORITHM:   N/A
+***********************************************************************/
+NSPR_API(PRUint32) PR_TicksPerSecond(void);
+
+/***********************************************************************
+** FUNCTION:    PR_SecondsToInterval
+**              PR_MillisecondsToInterval
+**              PR_MicrosecondsToInterval
+** DESCRIPTION:
+**  Convert standard clock units to platform dependent intervals.
+** INPUTS:      PRUint32
+** OUTPUTS:     void
+** RETURN:      PRIntervalTime
+**
+** SIDE EFFECTS:
+**  None
+** RESTRICTIONS:
+**  Conversion may cause overflow, which is not reported.
+** MEMORY:      N/A
+** ALGORITHM:   N/A
+***********************************************************************/
+NSPR_API(PRIntervalTime) PR_SecondsToInterval(PRUint32 seconds);
+NSPR_API(PRIntervalTime) PR_MillisecondsToInterval(PRUint32 milli);
+NSPR_API(PRIntervalTime) PR_MicrosecondsToInterval(PRUint32 micro);
+
+/***********************************************************************
+** FUNCTION:    PR_IntervalToSeconds
+**              PR_IntervalToMilliseconds
+**              PR_IntervalToMicroseconds
+** DESCRIPTION:
+**  Convert platform dependent intervals to standard clock units.
+** INPUTS:      PRIntervalTime
+** OUTPUTS:     void
+** RETURN:      PRUint32
+**
+** SIDE EFFECTS:
+**  None
+** RESTRICTIONS:
+**  Conversion may cause overflow, which is not reported.
+** MEMORY:      N/A
+** ALGORITHM:   N/A
+***********************************************************************/
+NSPR_API(PRUint32) PR_IntervalToSeconds(PRIntervalTime ticks);
+NSPR_API(PRUint32) PR_IntervalToMilliseconds(PRIntervalTime ticks);
+NSPR_API(PRUint32) PR_IntervalToMicroseconds(PRIntervalTime ticks);
+
+PR_END_EXTERN_C
+
+
+#endif /* !defined(prinrval_h) */
+
+/* prinrval.h */
diff --git a/nsprpub/pr/include/prio.h b/nsprpub/pr/include/prio.h
new file mode 100644
index 0000000000..d5cff257be
--- /dev/null
+++ b/nsprpub/pr/include/prio.h
@@ -0,0 +1,2014 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * File:     prio.h
+ *
+ * Description:    PR i/o related stuff, such as file system access, file
+ *         i/o, socket i/o, etc.
+ */
+
+#ifndef prio_h___
+#define prio_h___
+
+#include "prlong.h"
+#include "prtime.h"
+#include "prinrval.h"
+#include "prinet.h"
+
+PR_BEGIN_EXTERN_C
+
+/* Typedefs */
+typedef struct PRDir            PRDir;
+typedef struct PRDirEntry       PRDirEntry;
+#ifdef MOZ_UNICODE
+typedef struct PRDirUTF16       PRDirUTF16;
+typedef struct PRDirEntryUTF16  PRDirEntryUTF16;
+#endif /* MOZ_UNICODE */
+typedef struct PRFileDesc       PRFileDesc;
+typedef struct PRFileInfo       PRFileInfo;
+typedef struct PRFileInfo64     PRFileInfo64;
+typedef union  PRNetAddr        PRNetAddr;
+typedef struct PRIOMethods      PRIOMethods;
+typedef struct PRPollDesc       PRPollDesc;
+typedef struct PRFilePrivate    PRFilePrivate;
+typedef struct PRSendFileData   PRSendFileData;
+
+/*
+***************************************************************************
+** The file descriptor.
+** This is the primary structure to represent any active open socket,
+** whether it be a normal file or a network connection. Such objects
+** are stackable (or layerable). Each layer may have its own set of
+** method pointers and context private to that layer. All each layer
+** knows about its neighbors is how to get to their method table.
+***************************************************************************
+*/
+
+typedef PRIntn PRDescIdentity;          /* see: Layering file descriptors */
+
+struct PRFileDesc {
+    const PRIOMethods *methods;         /* the I/O methods table */
+    PRFilePrivate *secret;              /* layer dependent data */
+    PRFileDesc *lower, *higher;         /* pointers to adjacent layers */
+    void (PR_CALLBACK *dtor)(PRFileDesc *fd);
+    /* A destructor function for layer */
+    PRDescIdentity identity;            /* Identity of this particular layer  */
+};
+
+/*
+***************************************************************************
+** PRTransmitFileFlags
+**
+** Flags for PR_TransmitFile.  Pass PR_TRANSMITFILE_CLOSE_SOCKET to
+** PR_TransmitFile if the connection should be closed after the file
+** is transmitted.
+***************************************************************************
+*/
+typedef enum PRTransmitFileFlags {
+    PR_TRANSMITFILE_KEEP_OPEN = 0,    /* socket is left open after file
+                                       * is transmitted. */
+    PR_TRANSMITFILE_CLOSE_SOCKET = 1  /* socket is closed after file
+                                       * is transmitted. */
+} PRTransmitFileFlags;
+
+/*
+**************************************************************************
+** Macros for PRNetAddr
+**
+** Address families: PR_AF_INET, PR_AF_INET6, PR_AF_LOCAL
+** IP addresses: PR_INADDR_ANY, PR_INADDR_LOOPBACK, PR_INADDR_BROADCAST
+**************************************************************************
+*/
+
+#ifdef WIN32
+
+#define PR_AF_INET 2
+#define PR_AF_LOCAL 1
+#define PR_INADDR_ANY (unsigned long)0x00000000
+#define PR_INADDR_LOOPBACK 0x7f000001
+#define PR_INADDR_BROADCAST (unsigned long)0xffffffff
+
+#else /* WIN32 */
+
+#define PR_AF_INET AF_INET
+#define PR_AF_LOCAL AF_UNIX
+#define PR_INADDR_ANY INADDR_ANY
+#define PR_INADDR_LOOPBACK INADDR_LOOPBACK
+#define PR_INADDR_BROADCAST INADDR_BROADCAST
+
+#endif /* WIN32 */
+
+/*
+** Define PR_AF_INET6 in prcpucfg.h with the same
+** value as AF_INET6 on platforms with IPv6 support.
+** Otherwise define it here.
+*/
+#ifndef PR_AF_INET6
+#define PR_AF_INET6 100
+#endif
+
+#define PR_AF_INET_SDP 101
+#define PR_AF_INET6_SDP 102
+
+#ifndef PR_AF_UNSPEC
+#define PR_AF_UNSPEC 0
+#endif
+
+/*
+**************************************************************************
+** A network address
+**
+** Only Internet Protocol (IPv4 and IPv6) addresses are supported.
+** The address family must always represent IPv4 (AF_INET, probably == 2)
+** or IPv6 (AF_INET6).
+**************************************************************************
+*************************************************************************/
+
+struct PRIPv6Addr {
+    union {
+        PRUint8  _S6_u8[16];
+        PRUint16 _S6_u16[8];
+        PRUint32 _S6_u32[4];
+        PRUint64 _S6_u64[2];
+    } _S6_un;
+};
+#define pr_s6_addr      _S6_un._S6_u8
+#define pr_s6_addr16    _S6_un._S6_u16
+#define pr_s6_addr32    _S6_un._S6_u32
+#define pr_s6_addr64    _S6_un._S6_u64
+
+typedef struct PRIPv6Addr PRIPv6Addr;
+
+union PRNetAddr {
+    struct {
+        PRUint16 family;                /* address family (0x00ff maskable) */
+        char data[14];                  /* raw address data */
+    } raw;
+    struct {
+        PRUint16 family;                /* address family (AF_INET) */
+        PRUint16 port;                  /* port number */
+        PRUint32 ip;                    /* The actual 32 bits of address */
+        char pad[8];
+    } inet;
+    struct {
+        PRUint16 family;                /* address family (AF_INET6) */
+        PRUint16 port;                  /* port number */
+        PRUint32 flowinfo;              /* routing information */
+        PRIPv6Addr ip;                  /* the actual 128 bits of address */
+        PRUint32 scope_id;              /* set of interfaces for a scope */
+    } ipv6;
+#if defined(XP_UNIX) || defined(XP_OS2) || defined(XP_WIN)
+    struct {                            /* Unix domain socket address */
+        PRUint16 family;                /* address family (AF_UNIX) */
+#ifdef XP_OS2
+        char path[108];                 /* null-terminated pathname */
+        /* bind fails if size is not 108. */
+#else
+        char path[104];                 /* null-terminated pathname */
+#endif
+    } local;
+#endif
+};
+
+/*
+***************************************************************************
+** PRSockOption
+**
+** The file descriptors can have predefined options set after they file
+** descriptor is created to change their behavior. Only the options in
+** the following enumeration are supported.
+***************************************************************************
+*/
+typedef enum PRSockOption
+{
+    PR_SockOpt_Nonblocking,     /* nonblocking io */
+    PR_SockOpt_Linger,          /* linger on close if data present */
+    PR_SockOpt_Reuseaddr,       /* allow local address reuse */
+    PR_SockOpt_Keepalive,       /* keep connections alive */
+    PR_SockOpt_RecvBufferSize,  /* receive buffer size */
+    PR_SockOpt_SendBufferSize,  /* send buffer size */
+
+    PR_SockOpt_IpTimeToLive,    /* time to live */
+    PR_SockOpt_IpTypeOfService, /* type of service and precedence */
+
+    PR_SockOpt_AddMember,       /* add an IP group membership */
+    PR_SockOpt_DropMember,      /* drop an IP group membership */
+    PR_SockOpt_McastInterface,  /* multicast interface address */
+    PR_SockOpt_McastTimeToLive, /* multicast timetolive */
+    PR_SockOpt_McastLoopback,   /* multicast loopback */
+
+    PR_SockOpt_NoDelay,         /* don't delay send to coalesce packets */
+    PR_SockOpt_MaxSegment,      /* maximum segment size */
+    PR_SockOpt_Broadcast,       /* enable broadcast */
+    PR_SockOpt_Reuseport,       /* allow local address & port reuse on
+                                 * platforms that support it */
+    PR_SockOpt_Last
+} PRSockOption;
+
+typedef struct PRLinger {
+    PRBool polarity;            /* Polarity of the option's setting */
+    PRIntervalTime linger;      /* Time to linger before closing */
+} PRLinger;
+
+typedef struct PRMcastRequest {
+    PRNetAddr mcaddr;           /* IP multicast address of group */
+    PRNetAddr ifaddr;           /* local IP address of interface */
+} PRMcastRequest;
+
+typedef struct PRSocketOptionData
+{
+    PRSockOption option;
+    union
+    {
+        PRUintn ip_ttl;             /* IP time to live */
+        PRUintn mcast_ttl;          /* IP multicast time to live */
+        PRUintn tos;                /* IP type of service and precedence */
+        PRBool non_blocking;        /* Non-blocking (network) I/O */
+        PRBool reuse_addr;          /* Allow local address reuse */
+        PRBool reuse_port;          /* Allow local address & port reuse on
+                                     * platforms that support it */
+        PRBool keep_alive;          /* Keep connections alive */
+        PRBool mcast_loopback;      /* IP multicast loopback */
+        PRBool no_delay;            /* Don't delay send to coalesce packets */
+        PRBool broadcast;           /* Enable broadcast */
+        PRSize max_segment;         /* Maximum segment size */
+        PRSize recv_buffer_size;    /* Receive buffer size */
+        PRSize send_buffer_size;    /* Send buffer size */
+        PRLinger linger;            /* Time to linger on close if data present */
+        PRMcastRequest add_member;  /* add an IP group membership */
+        PRMcastRequest drop_member; /* Drop an IP group membership */
+        PRNetAddr mcast_if;         /* multicast interface address */
+    } value;
+} PRSocketOptionData;
+
+/*
+***************************************************************************
+** PRIOVec
+**
+** The I/O vector is used by the write vector method to describe the areas
+** that are affected by the ouput operation.
+***************************************************************************
+*/
+typedef struct PRIOVec {
+    char *iov_base;
+    int iov_len;
+} PRIOVec;
+
+/*
+***************************************************************************
+** Discover what type of socket is being described by the file descriptor.
+***************************************************************************
+*/
+typedef enum PRDescType
+{
+    PR_DESC_FILE = 1,
+    PR_DESC_SOCKET_TCP = 2,
+    PR_DESC_SOCKET_UDP = 3,
+    PR_DESC_LAYERED = 4,
+    PR_DESC_PIPE = 5
+} PRDescType;
+
+typedef enum PRSeekWhence {
+    PR_SEEK_SET = 0,
+    PR_SEEK_CUR = 1,
+    PR_SEEK_END = 2
+} PRSeekWhence;
+
+NSPR_API(PRDescType) PR_GetDescType(PRFileDesc *file);
+
+/*
+***************************************************************************
+** PRIOMethods
+**
+** The I/O methods table provides procedural access to the functions of
+** the file descriptor. It is the responsibility of a layer implementor
+** to provide suitable functions at every entry point. If a layer provides
+** no functionality, it should call the next lower(higher) function of the
+** same name (e.g., return fd->lower->method->close(fd->lower));
+**
+** Not all functions are implemented for all types of files. In cases where
+** that is true, the function will return a error indication with an error
+** code of PR_INVALID_METHOD_ERROR.
+***************************************************************************
+*/
+
+typedef PRStatus (PR_CALLBACK *PRCloseFN)(PRFileDesc *fd);
+typedef PRInt32 (PR_CALLBACK *PRReadFN)(PRFileDesc *fd, void *buf, PRInt32 amount);
+typedef PRInt32 (PR_CALLBACK *PRWriteFN)(PRFileDesc *fd, const void *buf, PRInt32 amount);
+typedef PRInt32 (PR_CALLBACK *PRAvailableFN)(PRFileDesc *fd);
+typedef PRInt64 (PR_CALLBACK *PRAvailable64FN)(PRFileDesc *fd);
+typedef PRStatus (PR_CALLBACK *PRFsyncFN)(PRFileDesc *fd);
+typedef PROffset32 (PR_CALLBACK *PRSeekFN)(PRFileDesc *fd, PROffset32 offset, PRSeekWhence how);
+typedef PROffset64 (PR_CALLBACK *PRSeek64FN)(PRFileDesc *fd, PROffset64 offset, PRSeekWhence how);
+typedef PRStatus (PR_CALLBACK *PRFileInfoFN)(PRFileDesc *fd, PRFileInfo *info);
+typedef PRStatus (PR_CALLBACK *PRFileInfo64FN)(PRFileDesc *fd, PRFileInfo64 *info);
+typedef PRInt32 (PR_CALLBACK *PRWritevFN)(
+    PRFileDesc *fd, const PRIOVec *iov, PRInt32 iov_size,
+    PRIntervalTime timeout);
+typedef PRStatus (PR_CALLBACK *PRConnectFN)(
+    PRFileDesc *fd, const PRNetAddr *addr, PRIntervalTime timeout);
+typedef PRFileDesc* (PR_CALLBACK *PRAcceptFN) (
+    PRFileDesc *fd, PRNetAddr *addr, PRIntervalTime timeout);
+typedef PRStatus (PR_CALLBACK *PRBindFN)(PRFileDesc *fd, const PRNetAddr *addr);
+typedef PRStatus (PR_CALLBACK *PRListenFN)(PRFileDesc *fd, PRIntn backlog);
+typedef PRStatus (PR_CALLBACK *PRShutdownFN)(PRFileDesc *fd, PRIntn how);
+typedef PRInt32 (PR_CALLBACK *PRRecvFN)(
+    PRFileDesc *fd, void *buf, PRInt32 amount,
+    PRIntn flags, PRIntervalTime timeout);
+typedef PRInt32 (PR_CALLBACK *PRSendFN) (
+    PRFileDesc *fd, const void *buf, PRInt32 amount,
+    PRIntn flags, PRIntervalTime timeout);
+typedef PRInt32 (PR_CALLBACK *PRRecvfromFN)(
+    PRFileDesc *fd, void *buf, PRInt32 amount,
+    PRIntn flags, PRNetAddr *addr, PRIntervalTime timeout);
+typedef PRInt32 (PR_CALLBACK *PRSendtoFN)(
+    PRFileDesc *fd, const void *buf, PRInt32 amount,
+    PRIntn flags, const PRNetAddr *addr, PRIntervalTime timeout);
+typedef PRInt16 (PR_CALLBACK *PRPollFN)(
+    PRFileDesc *fd, PRInt16 in_flags, PRInt16 *out_flags);
+typedef PRInt32 (PR_CALLBACK *PRAcceptreadFN)(
+    PRFileDesc *sd, PRFileDesc **nd, PRNetAddr **raddr,
+    void *buf, PRInt32 amount, PRIntervalTime t);
+typedef PRInt32 (PR_CALLBACK *PRTransmitfileFN)(
+    PRFileDesc *sd, PRFileDesc *fd, const void *headers,
+    PRInt32 hlen, PRTransmitFileFlags flags, PRIntervalTime t);
+typedef PRStatus (PR_CALLBACK *PRGetsocknameFN)(PRFileDesc *fd, PRNetAddr *addr);
+typedef PRStatus (PR_CALLBACK *PRGetpeernameFN)(PRFileDesc *fd, PRNetAddr *addr);
+typedef PRStatus (PR_CALLBACK *PRGetsocketoptionFN)(
+    PRFileDesc *fd, PRSocketOptionData *data);
+typedef PRStatus (PR_CALLBACK *PRSetsocketoptionFN)(
+    PRFileDesc *fd, const PRSocketOptionData *data);
+typedef PRInt32 (PR_CALLBACK *PRSendfileFN)(
+    PRFileDesc *networkSocket, PRSendFileData *sendData,
+    PRTransmitFileFlags flags, PRIntervalTime timeout);
+typedef PRStatus (PR_CALLBACK *PRConnectcontinueFN)(
+    PRFileDesc *fd, PRInt16 out_flags);
+typedef PRIntn (PR_CALLBACK *PRReservedFN)(PRFileDesc *fd);
+
+struct PRIOMethods {
+    PRDescType file_type;           /* Type of file represented (tos)           */
+    PRCloseFN close;                /* close file and destroy descriptor        */
+    PRReadFN read;                  /* read up to specified bytes into buffer   */
+    PRWriteFN write;                /* write specified bytes from buffer        */
+    PRAvailableFN available;        /* determine number of bytes available      */
+    PRAvailable64FN available64;    /*          ditto, 64 bit                   */
+    PRFsyncFN fsync;                /* flush all buffers to permanent store     */
+    PRSeekFN seek;                  /* position the file to the desired place   */
+    PRSeek64FN seek64;              /*           ditto, 64 bit                  */
+    PRFileInfoFN fileInfo;          /* Get information about an open file       */
+    PRFileInfo64FN fileInfo64;      /*           ditto, 64 bit                  */
+    PRWritevFN writev;              /* Write segments as described by iovector  */
+    PRConnectFN connect;            /* Connect to the specified (net) address   */
+    PRAcceptFN accept;              /* Accept a connection for a (net) peer     */
+    PRBindFN bind;                  /* Associate a (net) address with the fd    */
+    PRListenFN listen;              /* Prepare to listen for (net) connections  */
+    PRShutdownFN shutdown;          /* Shutdown a (net) connection              */
+    PRRecvFN recv;                  /* Solicit up the the specified bytes       */
+    PRSendFN send;                  /* Send all the bytes specified             */
+    PRRecvfromFN recvfrom;          /* Solicit (net) bytes and report source    */
+    PRSendtoFN sendto;              /* Send bytes to (net) address specified    */
+    PRPollFN poll;                  /* Test the fd to see if it is ready        */
+    PRAcceptreadFN acceptread;      /* Accept and read on a new (net) fd        */
+    PRTransmitfileFN transmitfile;  /* Transmit at entire file                  */
+    PRGetsocknameFN getsockname;    /* Get (net) address associated with fd     */
+    PRGetpeernameFN getpeername;    /* Get peer's (net) address                 */
+    PRReservedFN reserved_fn_6;     /* reserved for future use */
+    PRReservedFN reserved_fn_5;     /* reserved for future use */
+    PRGetsocketoptionFN getsocketoption;
+    /* Get current setting of specified option  */
+    PRSetsocketoptionFN setsocketoption;
+    /* Set value of specified option            */
+    PRSendfileFN sendfile;          /* Send a (partial) file with header/trailer*/
+    PRConnectcontinueFN connectcontinue;
+    /* Continue a nonblocking connect */
+    PRReservedFN reserved_fn_3;     /* reserved for future use */
+    PRReservedFN reserved_fn_2;     /* reserved for future use */
+    PRReservedFN reserved_fn_1;     /* reserved for future use */
+    PRReservedFN reserved_fn_0;     /* reserved for future use */
+};
+
+/*
+ **************************************************************************
+ * FUNCTION: PR_GetSpecialFD
+ * DESCRIPTION: Get the file descriptor that represents the standard input,
+ *              output, or error stream.
+ * INPUTS:
+ *     PRSpecialFD id
+ *         A value indicating the type of stream desired:
+ *             PR_StandardInput: standard input
+ *             PR_StandardOuput: standard output
+ *             PR_StandardError: standard error
+ * OUTPUTS: none
+ * RETURNS: PRFileDesc *
+ *     If the argument is valid, PR_GetSpecialFD returns a file descriptor
+ *     that represents the corresponding standard I/O stream.  Otherwise,
+ *     PR_GetSpecialFD returns NULL and sets error PR_INVALID_ARGUMENT_ERROR.
+ **************************************************************************
+ */
+
+typedef enum PRSpecialFD
+{
+    PR_StandardInput,          /* standard input */
+    PR_StandardOutput,         /* standard output */
+    PR_StandardError           /* standard error */
+} PRSpecialFD;
+
+NSPR_API(PRFileDesc*) PR_GetSpecialFD(PRSpecialFD id);
+
+#define PR_STDIN    PR_GetSpecialFD(PR_StandardInput)
+#define PR_STDOUT   PR_GetSpecialFD(PR_StandardOutput)
+#define PR_STDERR   PR_GetSpecialFD(PR_StandardError)
+
+/*
+ **************************************************************************
+ * Layering file descriptors
+ *
+ * File descriptors may be layered. Each layer has it's own identity.
+ * Identities are allocated by the runtime and are to be associated
+ * (by the layer implementor) with all layers that are of that type.
+ * It is then possible to scan the chain of layers and find a layer
+ * that one recongizes and therefore predict that it will implement
+ * a desired protocol.
+ *
+ * There are three well-known identities:
+ *      PR_INVALID_IO_LAYER => an invalid layer identity, for error return
+ *      PR_TOP_IO_LAYER     => the identity of the top of the stack
+ *      PR_NSPR_IO_LAYER    => the identity used by NSPR proper
+ * PR_TOP_IO_LAYER may be used as a shorthand for identifying the topmost
+ * layer of an existing stack. Ie., the following two constructs are
+ * equivalent.
+ *
+ *      rv = PR_PushIOLayer(stack, PR_TOP_IO_LAYER, my_layer);
+ *      rv = PR_PushIOLayer(stack, PR_GetLayersIdentity(stack), my_layer)
+ *
+ * A string may be associated with the creation of the identity. It
+ * will be copied by the runtime. If queried the runtime will return
+ * a reference to that copied string (not yet another copy). There
+ * is no facility for deleting an identity.
+ **************************************************************************
+ */
+
+#define PR_IO_LAYER_HEAD (PRDescIdentity)-3
+#define PR_INVALID_IO_LAYER (PRDescIdentity)-1
+#define PR_TOP_IO_LAYER (PRDescIdentity)-2
+#define PR_NSPR_IO_LAYER (PRDescIdentity)0
+
+NSPR_API(PRDescIdentity) PR_GetUniqueIdentity(const char *layer_name);
+NSPR_API(const char*) PR_GetNameForIdentity(PRDescIdentity ident);
+NSPR_API(PRDescIdentity) PR_GetLayersIdentity(PRFileDesc* fd);
+NSPR_API(PRFileDesc*) PR_GetIdentitiesLayer(PRFileDesc* fd_stack, PRDescIdentity id);
+
+/*
+ **************************************************************************
+ * PR_GetDefaultIOMethods: Accessing the default methods table.
+ * You may get a pointer to the default methods table by calling this function.
+ * You may then select any elements from that table with which to build your
+ * layer's methods table. You may NOT modify the table directly.
+ **************************************************************************
+ */
+NSPR_API(const PRIOMethods *) PR_GetDefaultIOMethods(void);
+
+/*
+ **************************************************************************
+ * Creating a layer
+ *
+ * A new layer may be allocated by calling PR_CreateIOLayerStub(). The
+ * file descriptor returned will contain the pointer to the methods table
+ * provided. The runtime will not modify the table nor test its correctness.
+ **************************************************************************
+ */
+NSPR_API(PRFileDesc*) PR_CreateIOLayerStub(
+    PRDescIdentity ident, const PRIOMethods *methods);
+
+/*
+ **************************************************************************
+ * Creating a layer
+ *
+ * A new stack may be created by calling PR_CreateIOLayer(). The
+ * file descriptor returned will point to the top of the stack, which has
+ * the layer 'fd' as the topmost layer.
+ *
+ * NOTE: This function creates a new style stack, which has a fixed, dummy
+ * header. The old style stack, created by a call to PR_PushIOLayer,
+ * results in modifying contents of the top layer of the stack, when
+ * pushing and popping layers of the stack.
+ **************************************************************************
+ */
+NSPR_API(PRFileDesc*) PR_CreateIOLayer(PRFileDesc* fd);
+
+/*
+ **************************************************************************
+ * Pushing a layer
+ *
+ * A file descriptor (perhaps allocated using PR_CreateIOLayerStub()) may
+ * be pushed into an existing stack of file descriptors at any point the
+ * caller deems appropriate. The new layer will be inserted into the stack
+ * just above the layer with the indicated identity.
+ *
+ * Note: Even if the identity parameter indicates the top-most layer of
+ * the stack, the value of the file descriptor describing the original
+ * stack will not change.
+ **************************************************************************
+ */
+NSPR_API(PRStatus) PR_PushIOLayer(
+    PRFileDesc *fd_stack, PRDescIdentity id, PRFileDesc *layer);
+
+/*
+ **************************************************************************
+ * Popping a layer
+ *
+ * A layer may be popped from a stack by indicating the identity of the
+ * layer to be removed. If found, a pointer to the removed object will
+ * be returned to the caller. The object then becomes the responsibility
+ * of the caller.
+ *
+ * Note: Even if the identity indicates the top layer of the stack, the
+ * reference returned will not be the file descriptor for the stack and
+ * that file descriptor will remain valid.
+ **************************************************************************
+ */
+NSPR_API(PRFileDesc*) PR_PopIOLayer(PRFileDesc *fd_stack, PRDescIdentity id);
+
+/*
+ **************************************************************************
+ * FUNCTION:    PR_Open
+ * DESCRIPTION:    Open a file for reading, writing, or both.
+ * INPUTS:
+ *     const char *name
+ *         The path name of the file to be opened
+ *     PRIntn flags
+ *         The file status flags.
+ *         It is a bitwise OR of the following bit flags (only one of
+ *         the first three flags below may be used):
+ *      PR_RDONLY        Open for reading only.
+ *      PR_WRONLY        Open for writing only.
+ *      PR_RDWR          Open for reading and writing.
+ *      PR_CREATE_FILE   If the file does not exist, the file is created
+ *                              If the file exists, this flag has no effect.
+ *      PR_SYNC          If set, each write will wait for both the file data
+ *                              and file status to be physically updated.
+ *      PR_APPEND        The file pointer is set to the end of
+ *                              the file prior to each write.
+ *      PR_TRUNCATE      If the file exists, its length is truncated to 0.
+ *      PR_EXCL          With PR_CREATE_FILE, if the file does not exist,
+ *                              the file is created. If the file already
+ *                              exists, no action and NULL is returned
+ *
+ *     PRIntn mode
+ *         The access permission bits of the file mode, if the file is
+ *         created when PR_CREATE_FILE is on.
+ * OUTPUTS:    None
+ * RETURNS:    PRFileDesc *
+ *     If the file is successfully opened,
+ *     returns a pointer to the PRFileDesc
+ *     created for the newly opened file.
+ *     Returns a NULL pointer if the open
+ *     failed.
+ * SIDE EFFECTS:
+ * RESTRICTIONS:
+ * MEMORY:
+ *     The return value, if not NULL, points to a dynamically allocated
+ *     PRFileDesc object.
+ * ALGORITHM:
+ **************************************************************************
+ */
+
+/* Open flags */
+#define PR_RDONLY       0x01
+#define PR_WRONLY       0x02
+#define PR_RDWR         0x04
+#define PR_CREATE_FILE  0x08
+#define PR_APPEND       0x10
+#define PR_TRUNCATE     0x20
+#define PR_SYNC         0x40
+#define PR_EXCL         0x80
+
+/*
+** File modes ....
+**
+** CAVEAT: 'mode' is currently only applicable on UNIX platforms.
+** The 'mode' argument may be ignored by PR_Open on other platforms.
+**
+**   00400   Read by owner.
+**   00200   Write by owner.
+**   00100   Execute (search if a directory) by owner.
+**   00040   Read by group.
+**   00020   Write by group.
+**   00010   Execute by group.
+**   00004   Read by others.
+**   00002   Write by others
+**   00001   Execute by others.
+**
+*/
+
+NSPR_API(PRFileDesc*) PR_Open(const char *name, PRIntn flags, PRIntn mode);
+
+/*
+ **************************************************************************
+ * FUNCTION: PR_OpenFile
+ * DESCRIPTION:
+ *     Open a file for reading, writing, or both.
+ *     PR_OpenFile has the same prototype as PR_Open but implements
+ *     the specified file mode where possible.
+ **************************************************************************
+ */
+
+/* File mode bits */
+#define PR_IRWXU 00700  /* read, write, execute/search by owner */
+#define PR_IRUSR 00400  /* read permission, owner */
+#define PR_IWUSR 00200  /* write permission, owner */
+#define PR_IXUSR 00100  /* execute/search permission, owner */
+#define PR_IRWXG 00070  /* read, write, execute/search by group */
+#define PR_IRGRP 00040  /* read permission, group */
+#define PR_IWGRP 00020  /* write permission, group */
+#define PR_IXGRP 00010  /* execute/search permission, group */
+#define PR_IRWXO 00007  /* read, write, execute/search by others */
+#define PR_IROTH 00004  /* read permission, others */
+#define PR_IWOTH 00002  /* write permission, others */
+#define PR_IXOTH 00001  /* execute/search permission, others */
+
+NSPR_API(PRFileDesc*) PR_OpenFile(
+    const char *name, PRIntn flags, PRIntn mode);
+
+#ifdef MOZ_UNICODE
+/*
+ * EXPERIMENTAL: This function may be removed in a future release.
+ */
+NSPR_API(PRFileDesc*) PR_OpenFileUTF16(
+    const PRUnichar *name, PRIntn flags, PRIntn mode);
+#endif /* MOZ_UNICODE */
+
+/*
+ **************************************************************************
+ * FUNCTION: PR_Close
+ * DESCRIPTION:
+ *     Close a file or socket.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *         a pointer to a PRFileDesc.
+ * OUTPUTS:
+ *     None.
+ * RETURN:
+ *     PRStatus
+ * SIDE EFFECTS:
+ * RESTRICTIONS:
+ *     None.
+ * MEMORY:
+ *     The dynamic memory pointed to by the argument fd is freed.
+ **************************************************************************
+ */
+
+NSPR_API(PRStatus)    PR_Close(PRFileDesc *fd);
+
+/*
+ **************************************************************************
+ * FUNCTION: PR_Read
+ * DESCRIPTION:
+ *     Read bytes from a file or socket.
+ *     The operation will block until either an end of stream indication is
+ *     encountered, some positive number of bytes are transferred, or there
+ *     is an error. No more than 'amount' bytes will be transferred.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *         pointer to the PRFileDesc object for the file or socket
+ *     void *buf
+ *         pointer to a buffer to hold the data read in.
+ *     PRInt32 amount
+ *         the size of 'buf' (in bytes)
+ * OUTPUTS:
+ * RETURN:
+ *     PRInt32
+ *         a positive number indicates the number of bytes actually read in.
+ *         0 means end of file is reached or the network connection is closed.
+ *         -1 indicates a failure. The reason for the failure is obtained
+ *         by calling PR_GetError().
+ * SIDE EFFECTS:
+ *     data is written into the buffer pointed to by 'buf'.
+ * RESTRICTIONS:
+ *     None.
+ * MEMORY:
+ *     N/A
+ * ALGORITHM:
+ *     N/A
+ **************************************************************************
+ */
+
+NSPR_API(PRInt32) PR_Read(PRFileDesc *fd, void *buf, PRInt32 amount);
+
+/*
+ ***************************************************************************
+ * FUNCTION: PR_Write
+ * DESCRIPTION:
+ *     Write a specified number of bytes to a file or socket.  The thread
+ *     invoking this function blocks until all the data is written.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *         pointer to a PRFileDesc object that refers to a file or socket
+ *     const void *buf
+ *         pointer to the buffer holding the data
+ *     PRInt32 amount
+ *         amount of data in bytes to be written from the buffer
+ * OUTPUTS:
+ *     None.
+ * RETURN: PRInt32
+ *     A positive number indicates the number of bytes successfully written.
+ *     A -1 is an indication that the operation failed. The reason
+ *     for the failure is obtained by calling PR_GetError().
+ ***************************************************************************
+ */
+
+NSPR_API(PRInt32) PR_Write(PRFileDesc *fd,const void *buf,PRInt32 amount);
+
+/*
+ ***************************************************************************
+ * FUNCTION: PR_Writev
+ * DESCRIPTION:
+ *     Write data to a socket.  The data is organized in a PRIOVec array. The
+ *     operation will block until all the data is written or the operation
+ *     fails.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *         Pointer that points to a PRFileDesc object for a socket.
+ *     const PRIOVec *iov
+ *         An array of PRIOVec.  PRIOVec is a struct with the following
+ *         two fields:
+ *             char *iov_base;
+ *             int iov_len;
+ *     PRInt32 iov_size
+ *         Number of elements in the iov array. The value of this
+ *         argument must not be greater than PR_MAX_IOVECTOR_SIZE.
+ *         If it is, the method will fail (PR_BUFFER_OVERFLOW_ERROR).
+ *     PRIntervalTime timeout
+ *       Time limit for completion of the entire write operation.
+ * OUTPUTS:
+ *     None
+ * RETURN:
+ *     A positive number indicates the number of bytes successfully written.
+ *     A -1 is an indication that the operation failed. The reason
+ *     for the failure is obtained by calling PR_GetError().
+ ***************************************************************************
+ */
+
+#define PR_MAX_IOVECTOR_SIZE 16   /* 'iov_size' must be <= */
+
+NSPR_API(PRInt32) PR_Writev(
+    PRFileDesc *fd, const PRIOVec *iov, PRInt32 iov_size,
+    PRIntervalTime timeout);
+
+/*
+ ***************************************************************************
+ * FUNCTION: PR_Delete
+ * DESCRIPTION:
+ *     Delete a file from the filesystem. The operation may fail if the
+ *     file is open.
+ * INPUTS:
+ *     const char *name
+ *         Path name of the file to be deleted.
+ * OUTPUTS:
+ *     None.
+ * RETURN: PRStatus
+ *     The function returns PR_SUCCESS if the file is successfully
+ *     deleted, otherwise it returns PR_FAILURE.
+ ***************************************************************************
+ */
+
+NSPR_API(PRStatus) PR_Delete(const char *name);
+
+/**************************************************************************/
+
+typedef enum PRFileType
+{
+    PR_FILE_FILE = 1,
+    PR_FILE_DIRECTORY = 2,
+    PR_FILE_OTHER = 3
+} PRFileType;
+
+struct PRFileInfo {
+    PRFileType type;        /* Type of file */
+    PROffset32 size;        /* Size, in bytes, of file's contents */
+    PRTime creationTime;    /* Creation time per definition of PRTime */
+    PRTime modifyTime;      /* Last modification time per definition of PRTime */
+};
+
+struct PRFileInfo64 {
+    PRFileType type;        /* Type of file */
+    PROffset64 size;        /* Size, in bytes, of file's contents */
+    PRTime creationTime;    /* Creation time per definition of PRTime */
+    PRTime modifyTime;      /* Last modification time per definition of PRTime */
+};
+
+/****************************************************************************
+ * FUNCTION: PR_GetFileInfo, PR_GetFileInfo64
+ * DESCRIPTION:
+ *     Get the information about the file with the given path name. This is
+ *     applicable only to NSFileDesc describing 'file' types (see
+ * INPUTS:
+ *     const char *fn
+ *         path name of the file
+ * OUTPUTS:
+ *     PRFileInfo *info
+ *         Information about the given file is written into the file
+ *         information object pointer to by 'info'.
+ * RETURN: PRStatus
+ *     PR_GetFileInfo returns PR_SUCCESS if file information is successfully
+ *     obtained, otherwise it returns PR_FAILURE.
+ ***************************************************************************
+ */
+
+NSPR_API(PRStatus) PR_GetFileInfo(const char *fn, PRFileInfo *info);
+NSPR_API(PRStatus) PR_GetFileInfo64(const char *fn, PRFileInfo64 *info);
+
+#ifdef MOZ_UNICODE
+/*
+ * EXPERIMENTAL: This function may be removed in a future release.
+ */
+NSPR_API(PRStatus) PR_GetFileInfo64UTF16(const PRUnichar *fn, PRFileInfo64 *info);
+#endif /* MOZ_UNICODE */
+
+/*
+ **************************************************************************
+ * FUNCTION: PR_GetOpenFileInfo, PR_GetOpenFileInfo64
+ * DESCRIPTION:
+ *     Get information about an open file referred to by the
+ *     given PRFileDesc object.
+ * INPUTS:
+ *     const PRFileDesc *fd
+ *          A reference to a valid, open file.
+ * OUTPUTS:
+ *     Same as PR_GetFileInfo, PR_GetFileInfo64
+ * RETURN: PRStatus
+ *     PR_GetFileInfo returns PR_SUCCESS if file information is successfully
+ *     obtained, otherwise it returns PR_FAILURE.
+ ***************************************************************************
+ */
+
+NSPR_API(PRStatus) PR_GetOpenFileInfo(PRFileDesc *fd, PRFileInfo *info);
+NSPR_API(PRStatus) PR_GetOpenFileInfo64(PRFileDesc *fd, PRFileInfo64 *info);
+
+/*
+ **************************************************************************
+ * FUNCTION: PR_Rename
+ * DESCRIPTION:
+ *     Rename a file from the old name 'from' to the new name 'to'.
+ * INPUTS:
+ *     const char *from
+ *         The old name of the file to be renamed.
+ *     const char *to
+ *         The new name of the file.
+ * OUTPUTS:
+ *     None.
+ * RETURN: PRStatus
+ **************************************************************************
+ */
+
+NSPR_API(PRStatus)    PR_Rename(const char *from, const char *to);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_Access
+ * DESCRIPTION:
+ *     Determine accessibility of a file.
+ * INPUTS:
+ *     const char *name
+ *         path name of the file
+ *     PRAccessHow how
+ *         specifies which access permission to check for.
+ *         It can be one of the following values:
+ *             PR_ACCESS_READ_OK       Test for read permission
+ *             PR_ACCESS_WRITE_OK      Test for write permission
+ *             PR_ACCESS_EXISTS        Check existence of file
+ * OUTPUTS:
+ *     None.
+ * RETURN: PRStatus
+ *     PR_SUCCESS is returned if the requested access is permitted.
+ *     Otherwise, PR_FAILURE is returned. Additional information
+ *     regarding the reason for the failure may be retrieved from
+ *     PR_GetError().
+ *************************************************************************
+ */
+
+typedef enum PRAccessHow {
+    PR_ACCESS_EXISTS = 1,
+    PR_ACCESS_WRITE_OK = 2,
+    PR_ACCESS_READ_OK = 3
+} PRAccessHow;
+
+NSPR_API(PRStatus) PR_Access(const char *name, PRAccessHow how);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_Seek, PR_Seek64
+ * DESCRIPTION:
+ *     Moves read-write file offset
+ * INPUTS:
+ *     PRFileDesc *fd
+ *         Pointer to a PRFileDesc object.
+ *     PROffset32, PROffset64 offset
+ *         Specifies a value, in bytes, that is used in conjunction
+ *         with the 'whence' parameter to set the file pointer.  A
+ *         negative value causes seeking in the reverse direction.
+ *     PRSeekWhence whence
+ *         Specifies how to interpret the 'offset' parameter in setting
+ *         the file pointer associated with the 'fd' parameter.
+ *         Values for the 'whence' parameter are:
+ *             PR_SEEK_SET  Sets the file pointer to the value of the
+ *                          'offset' parameter
+ *             PR_SEEK_CUR  Sets the file pointer to its current location
+ *                          plus the value of the offset parameter.
+ *             PR_SEEK_END  Sets the file pointer to the size of the
+ *                          file plus the value of the offset parameter.
+ * OUTPUTS:
+ *     None.
+ * RETURN: PROffset32, PROffset64
+ *     Upon successful completion, the resulting pointer location,
+ *     measured in bytes from the beginning of the file, is returned.
+ *     If the PR_Seek() function fails, the file offset remains
+ *     unchanged, and the returned value is -1. The error code can
+ *     then be retrieved via PR_GetError().
+ *************************************************************************
+ */
+
+NSPR_API(PROffset32) PR_Seek(PRFileDesc *fd, PROffset32 offset, PRSeekWhence whence);
+NSPR_API(PROffset64) PR_Seek64(PRFileDesc *fd, PROffset64 offset, PRSeekWhence whence);
+
+/*
+ ************************************************************************
+ * FUNCTION: PR_Available
+ * DESCRIPTION:
+ *     Determine the amount of data in bytes available for reading
+ *     in the given file or socket.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *         Pointer to a PRFileDesc object that refers to a file or
+ *         socket.
+ * OUTPUTS:
+ *     None
+ * RETURN: PRInt32, PRInt64
+ *     Upon successful completion, PR_Available returns the number of
+ *     bytes beyond the current read pointer that is available for
+ *     reading.  Otherwise, it returns a -1 and the reason for the
+ *     failure can be retrieved via PR_GetError().
+ ************************************************************************
+ */
+
+NSPR_API(PRInt32) PR_Available(PRFileDesc *fd);
+NSPR_API(PRInt64) PR_Available64(PRFileDesc *fd);
+
+/*
+ ************************************************************************
+ * FUNCTION: PR_Sync
+ * DESCRIPTION:
+ *     Sync any buffered data for a fd to its backing device (disk).
+ * INPUTS:
+ *     PRFileDesc *fd
+ *         Pointer to a PRFileDesc object that refers to a file or
+ *         socket
+ * OUTPUTS:
+ *     None
+ * RETURN: PRStatus
+ *     PR_SUCCESS is returned if the requested access is permitted.
+ *     Otherwise, PR_FAILURE is returned.
+ ************************************************************************
+ */
+
+NSPR_API(PRStatus)  PR_Sync(PRFileDesc *fd);
+
+/************************************************************************/
+
+struct PRDirEntry {
+    const char *name;        /* name of entry, relative to directory name */
+};
+
+#ifdef MOZ_UNICODE
+struct PRDirEntryUTF16 {
+    const PRUnichar *name;   /* name of entry in UTF16, relative to
+                              * directory name */
+};
+#endif /* MOZ_UNICODE */
+
+#if !defined(NO_NSPR_10_SUPPORT)
+#define PR_DirName(dirEntry)    (dirEntry->name)
+#endif
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_OpenDir
+ * DESCRIPTION:
+ *     Open the directory by the given name
+ * INPUTS:
+ *     const char *name
+ *         path name of the directory to be opened
+ * OUTPUTS:
+ *     None
+ * RETURN: PRDir *
+ *     If the directory is sucessfully opened, a PRDir object is
+ *     dynamically allocated and a pointer to it is returned.
+ *     If the directory cannot be opened, a NULL pointer is returned.
+ * MEMORY:
+ *     Upon successful completion, the return value points to
+ *     dynamically allocated memory.
+ *************************************************************************
+ */
+
+NSPR_API(PRDir*) PR_OpenDir(const char *name);
+
+#ifdef MOZ_UNICODE
+/*
+ * EXPERIMENTAL: This function may be removed in a future release.
+ */
+NSPR_API(PRDirUTF16*) PR_OpenDirUTF16(const PRUnichar *name);
+#endif /* MOZ_UNICODE */
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_ReadDir
+ * DESCRIPTION:
+ * INPUTS:
+ *     PRDir *dir
+ *         pointer to a PRDir object that designates an open directory
+ *     PRDirFlags flags
+ *           PR_SKIP_NONE     Do not skip any files
+ *           PR_SKIP_DOT      Skip the directory entry "." that
+ *                            represents the current directory
+ *           PR_SKIP_DOT_DOT  Skip the directory entry ".." that
+ *                            represents the parent directory.
+ *           PR_SKIP_BOTH     Skip both '.' and '..'
+ *           PR_SKIP_HIDDEN   Skip hidden files
+ * OUTPUTS:
+ * RETURN: PRDirEntry*
+ *     Returns a pointer to the next entry in the directory.  Returns
+ *     a NULL pointer upon reaching the end of the directory or when an
+ *     error occurs. The actual reason can be retrieved via PR_GetError().
+ *************************************************************************
+ */
+
+typedef enum PRDirFlags {
+    PR_SKIP_NONE = 0x0,
+    PR_SKIP_DOT = 0x1,
+    PR_SKIP_DOT_DOT = 0x2,
+    PR_SKIP_BOTH = 0x3,
+    PR_SKIP_HIDDEN = 0x4
+} PRDirFlags;
+
+NSPR_API(PRDirEntry*) PR_ReadDir(PRDir *dir, PRDirFlags flags);
+
+#ifdef MOZ_UNICODE
+/*
+ * EXPERIMENTAL: This function may be removed in a future release.
+ */
+NSPR_API(PRDirEntryUTF16*) PR_ReadDirUTF16(PRDirUTF16 *dir, PRDirFlags flags);
+#endif /* MOZ_UNICODE */
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_CloseDir
+ * DESCRIPTION:
+ *     Close the specified directory.
+ * INPUTS:
+ *     PRDir *dir
+ *        The directory to be closed.
+ * OUTPUTS:
+ *     None
+ * RETURN: PRStatus
+ *        If successful, will return a status of PR_SUCCESS. Otherwise
+ *        a value of PR_FAILURE. The reason for the failure may be re-
+ *        trieved using PR_GetError().
+ *************************************************************************
+ */
+
+NSPR_API(PRStatus) PR_CloseDir(PRDir *dir);
+
+#ifdef MOZ_UNICODE
+/*
+ * EXPERIMENTAL: This function may be removed in a future release.
+ */
+NSPR_API(PRStatus) PR_CloseDirUTF16(PRDirUTF16 *dir);
+#endif /* MOZ_UNICODE */
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_MkDir
+ * DESCRIPTION:
+ *     Create a new directory with the given name and access mode.
+ * INPUTS:
+ *     const char *name
+ *        The name of the directory to be created. All the path components
+ *        up to but not including the leaf component must already exist.
+ *     PRIntn mode
+ *        See 'mode' definiton in PR_Open().
+ * OUTPUTS:
+ *     None
+ * RETURN: PRStatus
+ *        If successful, will return a status of PR_SUCCESS. Otherwise
+ *        a value of PR_FAILURE. The reason for the failure may be re-
+ *        trieved using PR_GetError().
+ *************************************************************************
+ */
+
+NSPR_API(PRStatus) PR_MkDir(const char *name, PRIntn mode);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_MakeDir
+ * DESCRIPTION:
+ *     Create a new directory with the given name and access mode.
+ *     PR_MakeDir has the same prototype as PR_MkDir but implements
+ *     the specified access mode where possible.
+ *************************************************************************
+ */
+
+NSPR_API(PRStatus) PR_MakeDir(const char *name, PRIntn mode);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_RmDir
+ * DESCRIPTION:
+ *     Remove a directory by the given name.
+ * INPUTS:
+ *     const char *name
+ *        The name of the directory to be removed. All the path components
+ *        must already exist. Only the leaf component will be removed.
+ * OUTPUTS:
+ *     None
+ * RETURN: PRStatus
+ *        If successful, will return a status of PR_SUCCESS. Otherwise
+ *        a value of PR_FAILURE. The reason for the failure may be re-
+ *        trieved using PR_GetError().
+ **************************************************************************
+ */
+
+NSPR_API(PRStatus) PR_RmDir(const char *name);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_NewUDPSocket
+ * DESCRIPTION:
+ *     Create a new UDP socket.
+ * INPUTS:
+ *     None
+ * OUTPUTS:
+ *     None
+ * RETURN: PRFileDesc*
+ *     Upon successful completion, PR_NewUDPSocket returns a pointer
+ *     to the PRFileDesc created for the newly opened UDP socket.
+ *     Returns a NULL pointer if the creation of a new UDP socket failed.
+ *
+ **************************************************************************
+ */
+
+NSPR_API(PRFileDesc*)    PR_NewUDPSocket(void);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_NewTCPSocket
+ * DESCRIPTION:
+ *     Create a new TCP socket.
+ * INPUTS:
+ *     None
+ * OUTPUTS:
+ *     None
+ * RETURN: PRFileDesc*
+ *     Upon successful completion, PR_NewTCPSocket returns a pointer
+ *     to the PRFileDesc created for the newly opened TCP socket.
+ *     Returns a NULL pointer if the creation of a new TCP socket failed.
+ *
+ **************************************************************************
+ */
+
+NSPR_API(PRFileDesc*)    PR_NewTCPSocket(void);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_OpenUDPSocket
+ * DESCRIPTION:
+ *     Create a new UDP socket of the specified address family.
+ * INPUTS:
+ *     PRIntn af
+ *       Address family
+ * OUTPUTS:
+ *     None
+ * RETURN: PRFileDesc*
+ *     Upon successful completion, PR_OpenUDPSocket returns a pointer
+ *     to the PRFileDesc created for the newly opened UDP socket.
+ *     Returns a NULL pointer if the creation of a new UDP socket failed.
+ *
+ **************************************************************************
+ */
+
+NSPR_API(PRFileDesc*)    PR_OpenUDPSocket(PRIntn af);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_OpenTCPSocket
+ * DESCRIPTION:
+ *     Create a new TCP socket of the specified address family.
+ * INPUTS:
+ *     PRIntn af
+ *       Address family
+ * OUTPUTS:
+ *     None
+ * RETURN: PRFileDesc*
+ *     Upon successful completion, PR_NewTCPSocket returns a pointer
+ *     to the PRFileDesc created for the newly opened TCP socket.
+ *     Returns a NULL pointer if the creation of a new TCP socket failed.
+ *
+ **************************************************************************
+ */
+
+NSPR_API(PRFileDesc*)    PR_OpenTCPSocket(PRIntn af);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_Connect
+ * DESCRIPTION:
+ *     Initiate a connection on a socket.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *       Points to a PRFileDesc object representing a socket
+ *     PRNetAddr *addr
+ *       Specifies the address of the socket in its own communication
+ *       space.
+ *     PRIntervalTime timeout
+ *       The function uses the lesser of the provided timeout and
+ *       the OS's connect timeout.  In particular, if you specify
+ *       PR_INTERVAL_NO_TIMEOUT as the timeout, the OS's connection
+ *       time limit will be used.
+ *
+ * OUTPUTS:
+ *     None
+ * RETURN: PRStatus
+ *     Upon successful completion of connection initiation, PR_Connect
+ *     returns PR_SUCCESS.  Otherwise, it returns PR_FAILURE.  Further
+ *     failure information can be obtained by calling PR_GetError().
+ **************************************************************************
+ */
+
+NSPR_API(PRStatus) PR_Connect(
+    PRFileDesc *fd, const PRNetAddr *addr, PRIntervalTime timeout);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_ConnectContinue
+ * DESCRIPTION:
+ *     Continue a nonblocking connect.  After a nonblocking connect
+ *     is initiated with PR_Connect() (which fails with
+ *     PR_IN_PROGRESS_ERROR), one should call PR_Poll() on the socket,
+ *     with the in_flags PR_POLL_WRITE | PR_POLL_EXCEPT.  When
+ *     PR_Poll() returns, one calls PR_ConnectContinue() on the
+ *     socket to determine whether the nonblocking connect has
+ *     completed or is still in progress.  Repeat the PR_Poll(),
+ *     PR_ConnectContinue() sequence until the nonblocking connect
+ *     has completed.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *         the file descriptor representing a socket
+ *     PRInt16 out_flags
+ *         the out_flags field of the poll descriptor returned by
+ *         PR_Poll()
+ * RETURN: PRStatus
+ *     If the nonblocking connect has successfully completed,
+ *     PR_ConnectContinue returns PR_SUCCESS.  If PR_ConnectContinue()
+ *     returns PR_FAILURE, call PR_GetError():
+ *     - PR_IN_PROGRESS_ERROR: the nonblocking connect is still in
+ *       progress and has not completed yet.  The caller should poll
+ *       on the file descriptor for the in_flags
+ *       PR_POLL_WRITE|PR_POLL_EXCEPT and retry PR_ConnectContinue
+ *       later when PR_Poll() returns.
+ *     - Other errors: the nonblocking connect has failed with this
+ *       error code.
+ */
+
+NSPR_API(PRStatus)    PR_ConnectContinue(PRFileDesc *fd, PRInt16 out_flags);
+
+/*
+ *************************************************************************
+ * THIS FUNCTION IS DEPRECATED.  USE PR_ConnectContinue INSTEAD.
+ *
+ * FUNCTION: PR_GetConnectStatus
+ * DESCRIPTION:
+ *     Get the completion status of a nonblocking connect.  After
+ *     a nonblocking connect is initiated with PR_Connect() (which
+ *     fails with PR_IN_PROGRESS_ERROR), one should call PR_Poll()
+ *     on the socket, with the in_flags PR_POLL_WRITE | PR_POLL_EXCEPT.
+ *     When PR_Poll() returns, one calls PR_GetConnectStatus on the
+ *     PRPollDesc structure to determine whether the nonblocking
+ *     connect has succeeded or failed.
+ * INPUTS:
+ *     const PRPollDesc *pd
+ *         Pointer to a PRPollDesc whose fd member is the socket,
+ *         and in_flags must contain PR_POLL_WRITE and PR_POLL_EXCEPT.
+ *         PR_Poll() should have been called and set the out_flags.
+ * RETURN: PRStatus
+ *     If the nonblocking connect has successfully completed,
+ *     PR_GetConnectStatus returns PR_SUCCESS.  If PR_GetConnectStatus()
+ *     returns PR_FAILURE, call PR_GetError():
+ *     - PR_IN_PROGRESS_ERROR: the nonblocking connect is still in
+ *       progress and has not completed yet.
+ *     - Other errors: the nonblocking connect has failed with this
+ *       error code.
+ */
+
+NSPR_API(PRStatus)    PR_GetConnectStatus(const PRPollDesc *pd);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_Accept
+ * DESCRIPTION:
+ *     Accept a connection on a socket.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *       Points to a PRFileDesc object representing the rendezvous socket
+ *       on which the caller is willing to accept new connections.
+ *     PRIntervalTime timeout
+ *       Time limit for completion of the accept operation.
+ * OUTPUTS:
+ *     PRNetAddr *addr
+ *       Returns the address of the connecting entity in its own
+ *       communication space. It may be NULL.
+ * RETURN: PRFileDesc*
+ *     Upon successful acceptance of a connection, PR_Accept
+ *     returns a valid file descriptor. Otherwise, it returns NULL.
+ *     Further failure information can be obtained by calling PR_GetError().
+ **************************************************************************
+ */
+
+NSPR_API(PRFileDesc*) PR_Accept(
+    PRFileDesc *fd, PRNetAddr *addr, PRIntervalTime timeout);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_Bind
+ * DESCRIPTION:
+ *    Bind an address to a socket.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *       Points to a PRFileDesc object representing a socket.
+ *     PRNetAddr *addr
+ *       Specifies the address to which the socket will be bound.
+ * OUTPUTS:
+ *     None
+ * RETURN: PRStatus
+ *     Upon successful binding of an address to a socket, PR_Bind
+ *     returns PR_SUCCESS.  Otherwise, it returns PR_FAILURE.  Further
+ *     failure information can be obtained by calling PR_GetError().
+ **************************************************************************
+ */
+
+NSPR_API(PRStatus) PR_Bind(PRFileDesc *fd, const PRNetAddr *addr);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_Listen
+ * DESCRIPTION:
+ *    Listen for connections on a socket.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *       Points to a PRFileDesc object representing a socket that will be
+ *       used to listen for new connections.
+ *     PRIntn backlog
+ *       Specifies the maximum length of the queue of pending connections.
+ * OUTPUTS:
+ *     None
+ * RETURN: PRStatus
+ *     Upon successful completion of listen request, PR_Listen
+ *     returns PR_SUCCESS.  Otherwise, it returns PR_FAILURE.  Further
+ *     failure information can be obtained by calling PR_GetError().
+ **************************************************************************
+ */
+
+NSPR_API(PRStatus) PR_Listen(PRFileDesc *fd, PRIntn backlog);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_Shutdown
+ * DESCRIPTION:
+ *    Shut down part of a full-duplex connection on a socket.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *       Points to a PRFileDesc object representing a connected socket.
+ *     PRIntn how
+ *       Specifies the kind of disallowed operations on the socket.
+ *           PR_SHUTDOWN_RCV - Further receives will be disallowed
+ *           PR_SHUTDOWN_SEND - Further sends will be disallowed
+ *           PR_SHUTDOWN_BOTH - Further sends and receives will be disallowed
+ * OUTPUTS:
+ *     None
+ * RETURN: PRStatus
+ *     Upon successful completion of shutdown request, PR_Shutdown
+ *     returns PR_SUCCESS.  Otherwise, it returns PR_FAILURE.  Further
+ *     failure information can be obtained by calling PR_GetError().
+ **************************************************************************
+ */
+
+typedef enum PRShutdownHow
+{
+    PR_SHUTDOWN_RCV = 0,      /* disallow further receives */
+    PR_SHUTDOWN_SEND = 1,     /* disallow further sends */
+    PR_SHUTDOWN_BOTH = 2      /* disallow further receives and sends */
+} PRShutdownHow;
+
+NSPR_API(PRStatus)    PR_Shutdown(PRFileDesc *fd, PRShutdownHow how);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_Recv
+ * DESCRIPTION:
+ *    Receive a specified number of bytes from a connected socket.
+ *     The operation will block until some positive number of bytes are
+ *     transferred, a time out has occurred, or there is an error.
+ *     No more than 'amount' bytes will be transferred.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *       points to a PRFileDesc object representing a socket.
+ *     void *buf
+ *       pointer to a buffer to hold the data received.
+ *     PRInt32 amount
+ *       the size of 'buf' (in bytes)
+ *     PRIntn flags
+ *       must be zero or PR_MSG_PEEK.
+ *     PRIntervalTime timeout
+ *       Time limit for completion of the receive operation.
+ * OUTPUTS:
+ *     None
+ * RETURN: PRInt32
+ *         a positive number indicates the number of bytes actually received.
+ *         0 means the network connection is closed.
+ *         -1 indicates a failure. The reason for the failure is obtained
+ *         by calling PR_GetError().
+ **************************************************************************
+ */
+
+#define PR_MSG_PEEK 0x2
+
+NSPR_API(PRInt32)    PR_Recv(PRFileDesc *fd, void *buf, PRInt32 amount,
+                             PRIntn flags, PRIntervalTime timeout);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_Send
+ * DESCRIPTION:
+ *    Send a specified number of bytes from a connected socket.
+ *     The operation will block until all bytes are
+ *     processed, a time out has occurred, or there is an error.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *       points to a PRFileDesc object representing a socket.
+ *     void *buf
+ *       pointer to a buffer from where the data is sent.
+ *     PRInt32 amount
+ *       the size of 'buf' (in bytes)
+ *     PRIntn flags
+ *        (OBSOLETE - must always be zero)
+ *     PRIntervalTime timeout
+ *       Time limit for completion of the send operation.
+ * OUTPUTS:
+ *     None
+ * RETURN: PRInt32
+ *     A positive number indicates the number of bytes successfully processed.
+ *     This number must always equal 'amount'. A -1 is an indication that the
+ *     operation failed. The reason for the failure is obtained by calling
+ *     PR_GetError().
+ **************************************************************************
+ */
+
+NSPR_API(PRInt32)    PR_Send(PRFileDesc *fd, const void *buf, PRInt32 amount,
+                             PRIntn flags, PRIntervalTime timeout);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_RecvFrom
+ * DESCRIPTION:
+ *     Receive up to a specified number of bytes from socket which may
+ *     or may not be connected.
+ *     The operation will block until one or more bytes are
+ *     transferred, a time out has occurred, or there is an error.
+ *     No more than 'amount' bytes will be transferred.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *       points to a PRFileDesc object representing a socket.
+ *     void *buf
+ *       pointer to a buffer to hold the data received.
+ *     PRInt32 amount
+ *       the size of 'buf' (in bytes)
+ *     PRIntn flags
+ *        (OBSOLETE - must always be zero)
+ *     PRNetAddr *addr
+ *       Specifies the address of the sending peer. It may be NULL.
+ *     PRIntervalTime timeout
+ *       Time limit for completion of the receive operation.
+ * OUTPUTS:
+ *     None
+ * RETURN: PRInt32
+ *         a positive number indicates the number of bytes actually received.
+ *         0 means the network connection is closed.
+ *         -1 indicates a failure. The reason for the failure is obtained
+ *         by calling PR_GetError().
+ **************************************************************************
+ */
+
+NSPR_API(PRInt32) PR_RecvFrom(
+    PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags,
+    PRNetAddr *addr, PRIntervalTime timeout);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_SendTo
+ * DESCRIPTION:
+ *    Send a specified number of bytes from an unconnected socket.
+ *    The operation will block until all bytes are
+ *    sent, a time out has occurred, or there is an error.
+ * INPUTS:
+ *     PRFileDesc *fd
+ *       points to a PRFileDesc object representing an unconnected socket.
+ *     void *buf
+ *       pointer to a buffer from where the data is sent.
+ *     PRInt32 amount
+ *       the size of 'buf' (in bytes)
+ *     PRIntn flags
+ *        (OBSOLETE - must always be zero)
+ *     PRNetAddr *addr
+ *       Specifies the address of the peer.
+.*     PRIntervalTime timeout
+ *       Time limit for completion of the send operation.
+ * OUTPUTS:
+ *     None
+ * RETURN: PRInt32
+ *     A positive number indicates the number of bytes successfully sent.
+ *     -1 indicates a failure. The reason for the failure is obtained
+ *     by calling PR_GetError().
+ **************************************************************************
+ */
+
+NSPR_API(PRInt32) PR_SendTo(
+    PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags,
+    const PRNetAddr *addr, PRIntervalTime timeout);
+
+/*
+*************************************************************************
+** FUNCTION: PR_TransmitFile
+** DESCRIPTION:
+**    Transmitfile sends a complete file (sourceFile) across a socket
+**    (networkSocket).  If headers is non-NULL, the headers will be sent across
+**    the socket prior to sending the file.
+**
+**    Optionally, the PR_TRANSMITFILE_CLOSE_SOCKET flag may be passed to
+**    transmitfile.  This flag specifies that transmitfile should close the
+**    socket after sending the data.
+**
+** INPUTS:
+**    PRFileDesc *networkSocket
+**        The socket to send data over
+**    PRFileDesc *sourceFile
+**        The file to send
+**    const void *headers
+**        A pointer to headers to be sent before sending data
+**    PRInt32       hlen
+**        length of header buffers in bytes.
+**    PRTransmitFileFlags       flags
+**        If the flags indicate that the connection should be closed,
+**        it will be done immediately after transferring the file, unless
+**        the operation is unsuccessful.
+.*     PRIntervalTime timeout
+ *        Time limit for completion of the transmit operation.
+**
+** RETURNS:
+**    Returns the number of bytes written or -1 if the operation failed.
+**    If an error occurs while sending the file, the PR_TRANSMITFILE_CLOSE_
+**    SOCKET flag is ignored. The reason for the failure is obtained
+**    by calling PR_GetError().
+**************************************************************************
+*/
+
+NSPR_API(PRInt32) PR_TransmitFile(
+    PRFileDesc *networkSocket, PRFileDesc *sourceFile,
+    const void *headers, PRInt32 hlen, PRTransmitFileFlags flags,
+    PRIntervalTime timeout);
+
+/*
+*************************************************************************
+** FUNCTION: PR_SendFile
+** DESCRIPTION:
+**    PR_SendFile sends data from a file (sendData->fd) across a socket
+**    (networkSocket).  If specified, a header and/or trailer buffer are sent
+**    before and after the file, respectively. The file offset, number of bytes
+**    of file data to send, the header and trailer buffers are specified in the
+**    sendData argument.
+**
+**    Optionally, if the PR_TRANSMITFILE_CLOSE_SOCKET flag is passed, the
+**    socket is closed after successfully sending the data.
+**
+** INPUTS:
+**    PRFileDesc *networkSocket
+**        The socket to send data over
+**    PRSendFileData *sendData
+**        Contains the FD, file offset and length, header and trailer
+**        buffer specifications.
+**    PRTransmitFileFlags       flags
+**        If the flags indicate that the connection should be closed,
+**        it will be done immediately after transferring the file, unless
+**        the operation is unsuccessful.
+.*     PRIntervalTime timeout
+ *        Time limit for completion of the send operation.
+**
+** RETURNS:
+**    Returns the number of bytes written or -1 if the operation failed.
+**    If an error occurs while sending the file, the PR_TRANSMITFILE_CLOSE_
+**    SOCKET flag is ignored. The reason for the failure is obtained
+**    by calling PR_GetError().
+**************************************************************************
+*/
+
+struct PRSendFileData {
+    PRFileDesc  *fd;            /* file to send                         */
+    PRUint32    file_offset;    /* file offset                          */
+    PRSize      file_nbytes;    /* number of bytes of file data to send */
+    /* if 0, send data from file_offset to  */
+    /* end-of-file.                         */
+    const void  *header;        /* header buffer                        */
+    PRInt32     hlen;           /* header len                           */
+    const void  *trailer;       /* trailer buffer                       */
+    PRInt32     tlen;           /* trailer len                          */
+};
+
+
+NSPR_API(PRInt32) PR_SendFile(
+    PRFileDesc *networkSocket, PRSendFileData *sendData,
+    PRTransmitFileFlags flags, PRIntervalTime timeout);
+
+/*
+*************************************************************************
+** FUNCTION: PR_AcceptRead
+** DESCRIPTION:
+**    AcceptRead accepts a new connection, returns the newly created
+**    socket's descriptor and also returns the connecting peer's address.
+**    AcceptRead, as its name suggests, also receives the first block of data
+**    sent by the peer.
+**
+** INPUTS:
+**    PRFileDesc *listenSock
+**        A socket descriptor that has been called with the PR_Listen()
+**        function, also known as the rendezvous socket.
+**    void *buf
+**        A pointer to a buffer to receive data sent by the client.  This
+**        buffer must be large enough to receive <amount> bytes of data
+**        and two PRNetAddr structures, plus an extra 32 bytes. See:
+**        PR_ACCEPT_READ_BUF_OVERHEAD.
+**    PRInt32 amount
+**        The number of bytes of client data to receive.  Does not include
+**        the size of the PRNetAddr structures.  If 0, no data will be read
+**        from the client.
+**    PRIntervalTime timeout
+**        The timeout interval only applies to the read portion of the
+**        operation.  PR_AcceptRead will block indefinitely until the
+**        connection is accepted; the read will timeout after the timeout
+**        interval elapses.
+** OUTPUTS:
+**    PRFileDesc **acceptedSock
+**        The file descriptor for the newly connected socket.  This parameter
+**        will only be valid if the function return does not indicate failure.
+**    PRNetAddr  **peerAddr,
+**        The address of the remote socket.  This parameter will only be
+**        valid if the function return does not indicate failure.  The
+**        returned address is not guaranteed to be properly aligned.
+**
+** RETURNS:
+**     The number of bytes read from the client or -1 on failure.  The reason
+**     for the failure is obtained by calling PR_GetError().
+**************************************************************************
+**/
+/* define buffer overhead constant. Add this value to the user's
+** data length when allocating a buffer to accept data.
+**    Example:
+**    #define USER_DATA_SIZE 10
+**    char buf[USER_DATA_SIZE + PR_ACCEPT_READ_BUF_OVERHEAD];
+**    bytesRead = PR_AcceptRead( s, fd, &a, &p, USER_DATA_SIZE, ...);
+*/
+#define PR_ACCEPT_READ_BUF_OVERHEAD (32+(2*sizeof(PRNetAddr)))
+
+NSPR_API(PRInt32) PR_AcceptRead(
+    PRFileDesc *listenSock, PRFileDesc **acceptedSock,
+    PRNetAddr **peerAddr, void *buf, PRInt32 amount, PRIntervalTime timeout);
+
+/*
+*************************************************************************
+** FUNCTION: PR_NewTCPSocketPair
+** DESCRIPTION:
+**    Create a new TCP socket pair. The returned descriptors can be used
+**    interchangeably; they are interconnected full-duplex descriptors: data
+**    written to one can be read from the other and vice-versa.
+**
+** INPUTS:
+**    None
+** OUTPUTS:
+**    PRFileDesc *fds[2]
+**        The file descriptor pair for the newly created TCP sockets.
+** RETURN: PRStatus
+**     Upon successful completion of TCP socket pair, PR_NewTCPSocketPair
+**     returns PR_SUCCESS.  Otherwise, it returns PR_FAILURE.  Further
+**     failure information can be obtained by calling PR_GetError().
+** XXX can we implement this on windoze and mac?
+**************************************************************************
+**/
+NSPR_API(PRStatus) PR_NewTCPSocketPair(PRFileDesc *fds[2]);
+
+/*
+*************************************************************************
+** FUNCTION: PR_GetSockName
+** DESCRIPTION:
+**    Get socket name.  Return the network address for this socket.
+**
+** INPUTS:
+**     PRFileDesc *fd
+**       Points to a PRFileDesc object representing the socket.
+** OUTPUTS:
+**     PRNetAddr *addr
+**       Returns the address of the socket in its own communication space.
+** RETURN: PRStatus
+**     Upon successful completion, PR_GetSockName returns PR_SUCCESS.
+**     Otherwise, it returns PR_FAILURE.  Further failure information can
+**     be obtained by calling PR_GetError().
+**************************************************************************
+**/
+NSPR_API(PRStatus)  PR_GetSockName(PRFileDesc *fd, PRNetAddr *addr);
+
+/*
+*************************************************************************
+** FUNCTION: PR_GetPeerName
+** DESCRIPTION:
+**    Get name of the connected peer.  Return the network address for the
+**    connected peer socket.
+**
+** INPUTS:
+**     PRFileDesc *fd
+**       Points to a PRFileDesc object representing the connected peer.
+** OUTPUTS:
+**     PRNetAddr *addr
+**       Returns the address of the connected peer in its own communication
+**       space.
+** RETURN: PRStatus
+**     Upon successful completion, PR_GetPeerName returns PR_SUCCESS.
+**     Otherwise, it returns PR_FAILURE.  Further failure information can
+**     be obtained by calling PR_GetError().
+**************************************************************************
+**/
+NSPR_API(PRStatus)  PR_GetPeerName(PRFileDesc *fd, PRNetAddr *addr);
+
+NSPR_API(PRStatus)  PR_GetSocketOption(
+    PRFileDesc *fd, PRSocketOptionData *data);
+
+NSPR_API(PRStatus)  PR_SetSocketOption(
+    PRFileDesc *fd, const PRSocketOptionData *data);
+
+/*
+ *********************************************************************
+ *
+ * File descriptor inheritance
+ *
+ *********************************************************************
+ */
+
+/*
+ ************************************************************************
+ * FUNCTION: PR_SetFDInheritable
+ * DESCRIPTION:
+ *    Set the inheritance attribute of a file descriptor.
+ *
+ * INPUTS:
+ *     PRFileDesc *fd
+ *       Points to a PRFileDesc object.
+ *     PRBool inheritable
+ *       If PR_TRUE, the file descriptor fd is set to be inheritable
+ *       by a child process.  If PR_FALSE, the file descriptor is set
+ *       to be not inheritable by a child process.
+ * RETURN: PRStatus
+ *     Upon successful completion, PR_SetFDInheritable returns PR_SUCCESS.
+ *     Otherwise, it returns PR_FAILURE.  Further failure information can
+ *     be obtained by calling PR_GetError().
+ *************************************************************************
+ */
+NSPR_API(PRStatus) PR_SetFDInheritable(
+    PRFileDesc *fd,
+    PRBool inheritable);
+
+/*
+ ************************************************************************
+ * FUNCTION: PR_GetInheritedFD
+ * DESCRIPTION:
+ *    Get an inherited file descriptor with the specified name.
+ *
+ * INPUTS:
+ *     const char *name
+ *       The name of the inherited file descriptor.
+ * RETURN: PRFileDesc *
+ *     Upon successful completion, PR_GetInheritedFD returns the
+ *     inherited file descriptor with the specified name.  Otherwise,
+ *     it returns NULL.  Further failure information can be obtained
+ *     by calling PR_GetError().
+ *************************************************************************
+ */
+NSPR_API(PRFileDesc *) PR_GetInheritedFD(const char *name);
+
+/*
+ *********************************************************************
+ *
+ * Memory-mapped files
+ *
+ *********************************************************************
+ */
+
+typedef struct PRFileMap PRFileMap;
+
+/*
+ * protection options for read and write accesses of a file mapping
+ */
+typedef enum PRFileMapProtect {
+    PR_PROT_READONLY,     /* read only */
+    PR_PROT_READWRITE,    /* readable, and write is shared */
+    PR_PROT_WRITECOPY     /* readable, and write is private (copy-on-write) */
+} PRFileMapProtect;
+
+NSPR_API(PRFileMap *) PR_CreateFileMap(
+    PRFileDesc *fd,
+    PRInt64 size,
+    PRFileMapProtect prot);
+
+/*
+ * return the alignment (in bytes) of the offset argument to PR_MemMap
+ */
+NSPR_API(PRInt32) PR_GetMemMapAlignment(void);
+
+NSPR_API(void *) PR_MemMap(
+    PRFileMap *fmap,
+    PROffset64 offset,  /* must be aligned and sized according to the
+                         * return value of PR_GetMemMapAlignment() */
+    PRUint32 len);
+
+NSPR_API(PRStatus) PR_MemUnmap(void *addr, PRUint32 len);
+
+NSPR_API(PRStatus) PR_CloseFileMap(PRFileMap *fmap);
+
+/*
+ * Synchronously flush the given memory-mapped address range of the given open
+ * file to disk. The function does not return until all modified data have
+ * been written to disk.
+ *
+ * On some platforms, the function will call PR_Sync(fd) internally if it is
+ * necessary for flushing modified data to disk synchronously.
+ */
+NSPR_API(PRStatus) PR_SyncMemMap(
+    PRFileDesc *fd,
+    void *addr,
+    PRUint32 len);
+
+/*
+ ******************************************************************
+ *
+ * Interprocess communication
+ *
+ ******************************************************************
+ */
+
+/*
+ * Creates an anonymous pipe and returns file descriptors for the
+ * read and write ends of the pipe.
+ */
+
+NSPR_API(PRStatus) PR_CreatePipe(
+    PRFileDesc **readPipe,
+    PRFileDesc **writePipe
+);
+
+/************************************************************************/
+/************** The following definitions are for poll ******************/
+/************************************************************************/
+
+struct PRPollDesc {
+    PRFileDesc* fd;
+    PRInt16 in_flags;
+    PRInt16 out_flags;
+};
+
+/*
+** Bit values for PRPollDesc.in_flags or PRPollDesc.out_flags. Binary-or
+** these together to produce the desired poll request.
+*/
+
+#if defined(_PR_POLL_BACKCOMPAT)
+
+#include <poll.h>
+#define PR_POLL_READ    POLLIN
+#define PR_POLL_WRITE   POLLOUT
+#define PR_POLL_EXCEPT  POLLPRI
+#define PR_POLL_ERR     POLLERR     /* only in out_flags */
+#define PR_POLL_NVAL    POLLNVAL    /* only in out_flags when fd is bad */
+#define PR_POLL_HUP     POLLHUP     /* only in out_flags */
+
+#else  /* _PR_POLL_BACKCOMPAT */
+
+#define PR_POLL_READ    0x1
+#define PR_POLL_WRITE   0x2
+#define PR_POLL_EXCEPT  0x4
+#define PR_POLL_ERR     0x8         /* only in out_flags */
+#define PR_POLL_NVAL    0x10        /* only in out_flags when fd is bad */
+#define PR_POLL_HUP     0x20        /* only in out_flags */
+
+#endif  /* _PR_POLL_BACKCOMPAT */
+
+/*
+*************************************************************************
+** FUNCTION:    PR_Poll
+** DESCRIPTION:
+**
+** The call returns as soon as I/O is ready on one or more of the underlying
+** socket objects. A count of the number of ready descriptors is
+** returned unless a timeout occurs in which case zero is returned.
+**
+** PRPollDesc.fd should be set to a pointer to a PRFileDesc object
+** representing a socket. This field can be set to NULL to indicate to
+** PR_Poll that this PRFileDesc object should be ignored.
+** PRPollDesc.in_flags should be set to the desired request
+** (read/write/except or some combination). Upon successful return from
+** this call PRPollDesc.out_flags will be set to indicate what kind of
+** i/o can be performed on the respective descriptor. PR_Poll() uses the
+** out_flags fields as scratch variables during the call. If PR_Poll()
+** returns 0 or -1, the out_flags fields do not contain meaningful values
+** and must not be used.
+**
+** INPUTS:
+**      PRPollDesc *pds         A pointer to an array of PRPollDesc
+**
+**      PRIntn npds             The number of elements in the array
+**                              If this argument is zero PR_Poll is
+**                              equivalent to a PR_Sleep(timeout).
+**
+**      PRIntervalTime timeout  Amount of time the call will block waiting
+**                              for I/O to become ready. If this time expires
+**                              w/o any I/O becoming ready, the result will
+**                              be zero.
+**
+** OUTPUTS:    None
+** RETURN:
+**      PRInt32                 Number of PRPollDesc's with events or zero
+**                              if the function timed out or -1 on failure.
+**                              The reason for the failure is obtained by
+**                              calling PR_GetError().
+**************************************************************************
+*/
+NSPR_API(PRInt32) PR_Poll(
+    PRPollDesc *pds, PRIntn npds, PRIntervalTime timeout);
+
+/*
+**************************************************************************
+**
+** Pollable events
+**
+** A pollable event is a special kind of file descriptor.
+** The only I/O operation you can perform on a pollable event
+** is to poll it with the PR_POLL_READ flag.  You can't
+** read from or write to a pollable event.
+**
+** The purpose of a pollable event is to combine event waiting
+** with I/O waiting in a single PR_Poll call.  Pollable events
+** are implemented using a pipe or a pair of TCP sockets
+** connected via the loopback address, therefore setting and
+** waiting for pollable events are expensive operating system
+** calls.  Do not use pollable events for general thread
+** synchronization. Use condition variables instead.
+**
+** A pollable event has two states: set and unset.  Events
+** are not queued, so there is no notion of an event count.
+** A pollable event is either set or unset.
+**
+** A new pollable event is created by a PR_NewPollableEvent
+** call and is initially in the unset state.
+**
+** PR_WaitForPollableEvent blocks the calling thread until
+** the pollable event is set, and then it atomically unsets
+** the pollable event before it returns.
+**
+** To set a pollable event, call PR_SetPollableEvent.
+**
+** One can call PR_Poll with the PR_POLL_READ flag on a pollable
+** event.  When the pollable event is set, PR_Poll returns with
+** the PR_POLL_READ flag set in the out_flags.
+**
+** To close a pollable event, call PR_DestroyPollableEvent
+** (not PR_Close).
+**
+**************************************************************************
+*/
+
+NSPR_API(PRFileDesc *) PR_NewPollableEvent(void);
+
+NSPR_API(PRStatus) PR_DestroyPollableEvent(PRFileDesc *event);
+
+NSPR_API(PRStatus) PR_SetPollableEvent(PRFileDesc *event);
+
+NSPR_API(PRStatus) PR_WaitForPollableEvent(PRFileDesc *event);
+
+PR_END_EXTERN_C
+
+#endif /* prio_h___ */
diff --git a/nsprpub/pr/include/pripcsem.h b/nsprpub/pr/include/pripcsem.h
new file mode 100644
index 0000000000..f5a524da1a
--- /dev/null
+++ b/nsprpub/pr/include/pripcsem.h
@@ -0,0 +1,101 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * File: pripcsem.h
+ *
+ * Description: named semaphores for interprocess
+ * synchronization
+ *
+ * Unrelated processes obtain access to a shared semaphore
+ * by specifying its name.
+ *
+ * Our goal is to support named semaphores on at least
+ * Unix and Win32 platforms.  The implementation will use
+ * one of the three native semaphore APIs: POSIX, System V,
+ * and Win32.
+ *
+ * Because POSIX named semaphores have kernel persistence,
+ * we are forced to have a delete function in this API.
+ */
+
+#ifndef pripcsem_h___
+#define pripcsem_h___
+
+#include "prtypes.h"
+#include "prio.h"
+
+PR_BEGIN_EXTERN_C
+
+/*
+ * PRSem is an opaque structure that represents a named
+ * semaphore.
+ */
+typedef struct PRSem PRSem;
+
+/*
+ * PR_OpenSemaphore --
+ *
+ * Create or open a named semaphore with the specified name.
+ * A handle to the semaphore is returned.
+ *
+ * If the named semaphore doesn't exist and the PR_SEM_CREATE
+ * flag is specified, the named semaphore is created.  The
+ * created semaphore needs to be removed from the system with
+ * a PR_DeleteSemaphore call.
+ *
+ * If PR_SEM_CREATE is specified, the third argument is the
+ * access permission bits of the new semaphore (same
+ * interpretation as the mode argument to PR_Open) and the
+ * fourth argument is the initial value of the new semaphore.
+ * If PR_SEM_CREATE is not specified, the third and fourth
+ * arguments are ignored.
+ */
+
+#define PR_SEM_CREATE 0x1  /* create if not exist */
+#define PR_SEM_EXCL   0x2  /* fail if already exists */
+
+NSPR_API(PRSem *) PR_OpenSemaphore(
+    const char *name, PRIntn flags, PRIntn mode, PRUintn value);
+
+/*
+ * PR_WaitSemaphore --
+ *
+ * If the value of the semaphore is > 0, decrement the value and return.
+ * If the value is 0, sleep until the value becomes > 0, then decrement
+ * the value and return.
+ *
+ * The "test and decrement" operation is performed atomically.
+ */
+
+NSPR_API(PRStatus) PR_WaitSemaphore(PRSem *sem);
+
+/*
+ * PR_PostSemaphore --
+ *
+ * Increment the value of the named semaphore by 1.
+ */
+
+NSPR_API(PRStatus) PR_PostSemaphore(PRSem *sem);
+
+/*
+ * PR_CloseSemaphore --
+ *
+ * Close a named semaphore handle.
+ */
+
+NSPR_API(PRStatus) PR_CloseSemaphore(PRSem *sem);
+
+/*
+ * PR_DeleteSemaphore --
+ *
+ * Remove a named semaphore from the system.
+ */
+
+NSPR_API(PRStatus) PR_DeleteSemaphore(const char *name);
+
+PR_END_EXTERN_C
+
+#endif /* pripcsem_h___ */
diff --git a/nsprpub/pr/include/private/Makefile.in b/nsprpub/pr/include/private/Makefile.in
new file mode 100644
index 0000000000..db0c2f1e24
--- /dev/null
+++ b/nsprpub/pr/include/private/Makefile.in
@@ -0,0 +1,29 @@
+# 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+#! gmake
+
+MOD_DEPTH	= ../../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(MOD_DEPTH)/config/autoconf.mk
+
+include $(topsrcdir)/config/config.mk
+
+RELEASE_HEADERS = pprio.h pprthred.h prpriv.h
+RELEASE_HEADERS := $(addprefix $(srcdir)/, $(RELEASE_HEADERS))
+RELEASE_HEADERS_DEST = $(RELEASE_INCLUDE_DIR)/private
+
+HEADERS = $(RELEASE_HEADERS) $(srcdir)/pprmwait.h $(srcdir)/primpl.h
+
+include_subdir = private
+
+include $(topsrcdir)/config/rules.mk
+
+export:: $(RELEASE_HEADERS)
+	$(INSTALL) -m 444 $(RELEASE_HEADERS) $(dist_includedir)/private
diff --git a/nsprpub/pr/include/private/pprio.h b/nsprpub/pr/include/private/pprio.h
new file mode 100644
index 0000000000..be8252b887
--- /dev/null
+++ b/nsprpub/pr/include/private/pprio.h
@@ -0,0 +1,242 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** File:    pprio.h
+**
+** Description: Private definitions for I/O related structures
+*/
+
+#ifndef pprio_h___
+#define pprio_h___
+
+#include "prtypes.h"
+#include "prio.h"
+
+PR_BEGIN_EXTERN_C
+
+/************************************************************************/
+/************************************************************************/
+
+#ifdef _WIN64
+typedef __int64 PROsfd;
+#else
+typedef PRInt32 PROsfd;
+#endif
+
+/* Return the method tables for files, tcp sockets and udp sockets */
+NSPR_API(const PRIOMethods*)    PR_GetFileMethods(void);
+NSPR_API(const PRIOMethods*)    PR_GetTCPMethods(void);
+NSPR_API(const PRIOMethods*)    PR_GetUDPMethods(void);
+NSPR_API(const PRIOMethods*)    PR_GetPipeMethods(void);
+
+/*
+** Convert a NSPR socket handle to a native socket handle.
+**
+** Using this function makes your code depend on the properties of the
+** current NSPR implementation, which may change (although extremely
+** unlikely because of NSPR's backward compatibility requirement).  Avoid
+** using it if you can.
+**
+** If you use this function, you need to understand what NSPR does to
+** the native handle.  For example, NSPR puts native socket handles in
+** non-blocking mode or associates them with an I/O completion port (the
+** WINNT build configuration only).  Your use of the native handle should
+** not interfere with NSPR's use of the native handle.  If your code
+** changes the configuration of the native handle, (e.g., changes it to
+** blocking or closes it), NSPR will not work correctly.
+*/
+NSPR_API(PROsfd)       PR_FileDesc2NativeHandle(PRFileDesc *);
+NSPR_API(void)         PR_ChangeFileDescNativeHandle(PRFileDesc *, PROsfd);
+NSPR_API(PRFileDesc*)  PR_AllocFileDesc(PROsfd osfd,
+                                        const PRIOMethods *methods);
+NSPR_API(void)         PR_FreeFileDesc(PRFileDesc *fd);
+/*
+** Import an existing OS file to NSPR.
+*/
+NSPR_API(PRFileDesc*)  PR_ImportFile(PROsfd osfd);
+NSPR_API(PRFileDesc*)  PR_ImportPipe(PROsfd osfd);
+NSPR_API(PRFileDesc*)  PR_ImportTCPSocket(PROsfd osfd);
+NSPR_API(PRFileDesc*)  PR_ImportUDPSocket(PROsfd osfd);
+
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_CreateSocketPollFd
+ * DESCRIPTION:
+ *     Create a PRFileDesc wrapper for a native socket handle, for use with
+ *     PR_Poll only
+ * INPUTS:
+ *     None
+ * OUTPUTS:
+ *     None
+ * RETURN: PRFileDesc*
+ *     Upon successful completion, PR_CreateSocketPollFd returns a pointer
+ *     to the PRFileDesc created for the native socket handle
+ *     Returns a NULL pointer if the create of a new PRFileDesc failed
+ *
+ **************************************************************************
+ */
+
+NSPR_API(PRFileDesc*)   PR_CreateSocketPollFd(PROsfd osfd);
+
+/*
+ *************************************************************************
+ * FUNCTION: PR_DestroySocketPollFd
+ * DESCRIPTION:
+ *     Destroy the PRFileDesc wrapper created by PR_CreateSocketPollFd
+ * INPUTS:
+ *     None
+ * OUTPUTS:
+ *     None
+ * RETURN: PRFileDesc*
+ *     Upon successful completion, PR_DestroySocketPollFd returns
+ *     PR_SUCCESS, else PR_FAILURE
+ *
+ **************************************************************************
+ */
+
+NSPR_API(PRStatus) PR_DestroySocketPollFd(PRFileDesc *fd);
+
+
+/*
+** Macros for PR_Socket
+**
+** Socket types: PR_SOCK_STREAM, PR_SOCK_DGRAM
+*/
+
+#ifdef WIN32
+
+#define PR_SOCK_STREAM 1
+#define PR_SOCK_DGRAM 2
+
+#else /* WIN32 */
+
+#define PR_SOCK_STREAM SOCK_STREAM
+#define PR_SOCK_DGRAM SOCK_DGRAM
+
+#endif /* WIN32 */
+
+/*
+** Create a new Socket; this function is obsolete.
+*/
+NSPR_API(PRFileDesc*)   PR_Socket(PRInt32 domain, PRInt32 type, PRInt32 proto);
+
+/* FUNCTION: PR_LockFile
+** DESCRIPTION:
+**    Lock a file for exclusive access.
+** RETURNS:
+**    PR_SUCCESS when the lock is held
+**    PR_FAILURE otherwise
+*/
+NSPR_API(PRStatus) PR_LockFile(PRFileDesc *fd);
+
+/* FUNCTION: PR_TLockFile
+** DESCRIPTION:
+**    Test and Lock a file for exclusive access.  Do not block if the
+**    file cannot be locked immediately.
+** RETURNS:
+**    PR_SUCCESS when the lock is held
+**    PR_FAILURE otherwise
+*/
+NSPR_API(PRStatus) PR_TLockFile(PRFileDesc *fd);
+
+/* FUNCTION: PR_UnlockFile
+** DESCRIPTION:
+**    Unlock a file which has been previously locked successfully by this
+**    process.
+** RETURNS:
+**    PR_SUCCESS when the lock is released
+**    PR_FAILURE otherwise
+*/
+NSPR_API(PRStatus) PR_UnlockFile(PRFileDesc *fd);
+
+/*
+** Emulate acceptread by accept and recv.
+*/
+NSPR_API(PRInt32) PR_EmulateAcceptRead(PRFileDesc *sd, PRFileDesc **nd,
+                                       PRNetAddr **raddr, void *buf, PRInt32 amount, PRIntervalTime timeout);
+
+/*
+** Emulate sendfile by reading from the file and writing to the socket.
+** The file is memory-mapped if memory-mapped files are supported.
+*/
+NSPR_API(PRInt32) PR_EmulateSendFile(
+    PRFileDesc *networkSocket, PRSendFileData *sendData,
+    PRTransmitFileFlags flags, PRIntervalTime timeout);
+
+#ifdef WIN32
+/* FUNCTION: PR_NTFast_AcceptRead
+** DESCRIPTION:
+**    NT has the notion of an "accept context", which is only needed in
+**    order to make certain calls.  By default, a socket connected via
+**    AcceptEx can only do a limited number of things without updating
+**    the acceptcontext.  The generic version of PR_AcceptRead always
+**    updates the accept context.  This version does not.
+**/
+NSPR_API(PRInt32) PR_NTFast_AcceptRead(PRFileDesc *sd, PRFileDesc **nd,
+                                       PRNetAddr **raddr, void *buf, PRInt32 amount, PRIntervalTime t);
+
+typedef void (*_PR_AcceptTimeoutCallback)(void *);
+
+/* FUNCTION: PR_NTFast_AcceptRead_WithTimeoutCallback
+** DESCRIPTION:
+**    The AcceptEx call combines the accept with the read function.  However,
+**    our daemon threads need to be able to wakeup and reliably flush their
+**    log buffers if the Accept times out.  However, with the current blocking
+**    interface to AcceptRead, there is no way for us to timeout the Accept;
+**    this is because when we timeout the Read, we can close the newly
+**    socket and continue; but when we timeout the accept itself, there is no
+**    new socket to timeout.  So instead, this version of the function is
+**    provided.  After the initial timeout period elapses on the accept()
+**    portion of the function, it will call the callback routine and then
+**    continue the accept.   If the timeout occurs on the read, it will
+**    close the connection and return error.
+*/
+NSPR_API(PRInt32) PR_NTFast_AcceptRead_WithTimeoutCallback(
+    PRFileDesc *sd,
+    PRFileDesc **nd,
+    PRNetAddr **raddr,
+    void *buf,
+    PRInt32 amount,
+    PRIntervalTime t,
+    _PR_AcceptTimeoutCallback callback,
+    void *callback_arg);
+
+/* FUNCTION: PR_NTFast_Accept
+** DESCRIPTION:
+**    NT has the notion of an "accept context", which is only needed in
+**    order to make certain calls.  By default, a socket connected via
+**    AcceptEx can only do a limited number of things without updating
+**    the acceptcontext.  The generic version of PR_Accept always
+**    updates the accept context.  This version does not.
+**/
+NSPR_API(PRFileDesc*)   PR_NTFast_Accept(PRFileDesc *fd, PRNetAddr *addr,
+        PRIntervalTime timeout);
+
+/* FUNCTION: PR_NTFast_Update
+** DESCRIPTION:
+**    For sockets accepted with PR_NTFast_Accept or PR_NTFastAcceptRead,
+**    this function will update the accept context for those sockets,
+**    so that the socket can make general purpose socket calls.
+**    Without calling this, the only operations supported on the socket
+**    Are PR_Read, PR_Write, PR_Transmitfile, and PR_Close.
+*/
+NSPR_API(void) PR_NTFast_UpdateAcceptContext(PRFileDesc *acceptSock,
+        PRFileDesc *listenSock);
+
+
+/* FUNCTION: PR_NT_CancelIo
+** DESCRIPTION:
+**    Cancel IO operations on fd.
+*/
+NSPR_API(PRStatus) PR_NT_CancelIo(PRFileDesc *fd);
+
+
+#endif /* WIN32 */
+
+PR_END_EXTERN_C
+
+#endif /* pprio_h___ */
diff --git a/nsprpub/pr/include/private/pprmwait.h b/nsprpub/pr/include/private/pprmwait.h
new file mode 100644
index 0000000000..3e4057c5f4
--- /dev/null
+++ b/nsprpub/pr/include/private/pprmwait.h
@@ -0,0 +1,103 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#if defined(_PPRMWAIT_H)
+#else
+#define _PPRMWAIT_H
+
+#include "prlock.h"
+#include "prcvar.h"
+#include "prclist.h"
+#include "prthread.h"
+
+#define MAX_POLLING_INTERVAL 100
+#define _PR_POLL_COUNT_FUDGE 64
+#define _PR_DEFAULT_HASH_LENGTH 59
+
+/*
+ * Our hash table resolves collisions by open addressing with
+ * double hashing.  See Cormen, Leiserson, and Rivest,
+ * Introduction to Algorithms, p. 232, The MIT Press, 1990.
+ */
+
+#define _MW_HASH(a, m) ((((PRUptrdiff)(a) >> 4) ^ ((PRUptrdiff)(a) >> 10)) % (m))
+#define _MW_HASH2(a, m) (1 + ((((PRUptrdiff)(a) >> 4) ^ ((PRUptrdiff)(a) >> 10)) % (m - 2)))
+#define _MW_ABORTED(_rv) \
+    ((PR_FAILURE == (_rv)) && (PR_PENDING_INTERRUPT_ERROR == PR_GetError()))
+
+typedef enum {_prmw_success, _prmw_rehash, _prmw_error} _PR_HashStory;
+
+typedef struct _PRWaiterHash
+{
+    PRUint16 count;             /* current number in hash table */
+    PRUint16 length;            /* current size of the hash table */
+    PRRecvWait *recv_wait;      /* hash table of receive wait objects */
+} _PRWaiterHash;
+
+typedef enum {_prmw_running, _prmw_stopping, _prmw_stopped} PRMWGroupState;
+
+struct PRWaitGroup
+{
+    PRCList group_link;         /* all groups are linked to each other */
+    PRCList io_ready;           /* list of I/O requests that are ready */
+    PRMWGroupState state;       /* state of this group (so we can shut down) */
+
+    PRLock *ml;                 /* lock for synchronizing this wait group */
+    PRCondVar *io_taken;        /* calling threads notify when they take I/O */
+    PRCondVar *io_complete;     /* calling threads wait here for completions */
+    PRCondVar *new_business;    /* polling thread waits here more work */
+    PRCondVar *mw_manage;       /* used to manage group lists */
+    PRThread* poller;           /* thread that's actually doing the poll() */
+    PRUint16 waiting_threads;   /* number of threads waiting for recv */
+    PRUint16 polling_count;     /* number of elements in the polling list */
+    PRUint32 p_timestamp;       /* pseudo-time group had element removed */
+    PRPollDesc *polling_list;   /* list poller builds for polling */
+    PRIntervalTime last_poll;   /* last time we polled */
+    _PRWaiterHash *waiter;      /* pointer to hash table of wait receive objects */
+
+#ifdef WINNT
+    /*
+     * On NT, idle threads are responsible for getting completed i/o.
+     * They need to add completed i/o to the io_ready list.  Since
+     * idle threads cannot use nspr locks, we have to use an md lock
+     * to protect the io_ready list.
+     */
+    _MDLock mdlock;             /* protect io_ready, waiter, and wait_list */
+    PRCList wait_list;          /* used in place of io_complete.  reuse
+                                 * waitQLinks in the PRThread structure. */
+#endif /* WINNT */
+};
+
+/**********************************************************************
+***********************************************************************
+******************** Wait group enumerations **************************
+***********************************************************************
+**********************************************************************/
+typedef struct _PRGlobalState
+{
+    PRCList group_list;         /* master of the group list */
+    PRWaitGroup *group;         /* the default (NULL) group */
+} _PRGlobalState;
+
+#ifdef WINNT
+extern PRStatus NT_HashRemoveInternal(PRWaitGroup *group, PRFileDesc *fd);
+#endif
+
+typedef enum {_PR_ENUM_UNSEALED=0, _PR_ENUM_SEALED=0x0eadface} _PREnumSeal;
+
+struct PRMWaitEnumerator
+{
+    PRWaitGroup *group;       /* group this enumerator is bound to */
+    PRThread *thread;               /* thread in midst of an enumeration */
+    _PREnumSeal seal;               /* trying to detect deleted objects */
+    PRUint32 p_timestamp;           /* when enumeration was (re)started */
+    PRRecvWait **waiter;            /* pointer into hash table */
+    PRUintn index;                  /* position in hash table */
+    void *pad[4];                   /* some room to grow */
+};
+
+#endif /* defined(_PPRMWAIT_H) */
+
+/* pprmwait.h */
diff --git a/nsprpub/pr/include/private/pprthred.h b/nsprpub/pr/include/private/pprthred.h
new file mode 100644
index 0000000000..e566d8adad
--- /dev/null
+++ b/nsprpub/pr/include/private/pprthred.h
@@ -0,0 +1,311 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef pprthred_h___
+#define pprthred_h___
+
+/*
+** API for PR private functions.  These calls are to be used by internal
+** developers only.
+*/
+#include "nspr.h"
+
+#if defined(XP_OS2)
+#define INCL_DOS
+#define INCL_DOSERRORS
+#define INCL_WIN
+#include <os2.h>
+#endif
+
+PR_BEGIN_EXTERN_C
+
+/*---------------------------------------------------------------------------
+** THREAD PRIVATE FUNCTIONS
+---------------------------------------------------------------------------*/
+
+/*
+** Associate a thread object with an existing native thread.
+**  "type" is the type of thread object to attach
+**  "priority" is the priority to assign to the thread
+**  "stack" defines the shape of the threads stack
+**
+** This can return NULL if some kind of error occurs, or if memory is
+** tight. This call invokes "start(obj,arg)" and returns when the
+** function returns. The thread object is automatically destroyed.
+**
+** This call is not normally needed unless you create your own native
+** thread. PR_Init does this automatically for the primordial thread.
+*/
+NSPR_API(PRThread*) PR_AttachThread(PRThreadType type,
+                                    PRThreadPriority priority,
+                                    PRThreadStack *stack);
+
+/*
+** Detach the nspr thread from the currently executing native thread.
+** The thread object will be destroyed and all related data attached
+** to it. The exit procs will be invoked.
+**
+** This call is not normally needed unless you create your own native
+** thread. PR_Exit will automatially detach the nspr thread object
+** created by PR_Init for the primordial thread.
+**
+** This call returns after the nspr thread object is destroyed.
+*/
+NSPR_API(void) PR_DetachThread(void);
+
+/*
+** Get the id of the named thread. Each thread is assigned a unique id
+** when it is created or attached.
+*/
+NSPR_API(PRUint32) PR_GetThreadID(PRThread *thread);
+
+/*
+** Set the procedure that is called when a thread is dumped. The procedure
+** will be applied to the argument, arg, when called. Setting the procedure
+** to NULL effectively removes it.
+*/
+typedef void (*PRThreadDumpProc)(PRFileDesc *fd, PRThread *t, void *arg);
+NSPR_API(void) PR_SetThreadDumpProc(
+    PRThread* thread, PRThreadDumpProc dump, void *arg);
+
+/*
+** Get this thread's affinity mask.  The affinity mask is a 32 bit quantity
+** marking a bit for each processor this process is allowed to run on.
+** The processor mask is returned in the mask argument.
+** The least-significant-bit represents processor 0.
+**
+** Returns 0 on success, -1 on failure.
+*/
+NSPR_API(PRInt32) PR_GetThreadAffinityMask(PRThread *thread, PRUint32 *mask);
+
+/*
+** Set this thread's affinity mask.
+**
+** Returns 0 on success, -1 on failure.
+*/
+NSPR_API(PRInt32) PR_SetThreadAffinityMask(PRThread *thread, PRUint32 mask );
+
+/*
+** Set the default CPU Affinity mask.
+**
+*/
+NSPR_API(PRInt32) PR_SetCPUAffinityMask(PRUint32 mask);
+
+/*
+** Show status of all threads to standard error output.
+*/
+NSPR_API(void) PR_ShowStatus(void);
+
+/*
+** Set thread recycle mode to on (1) or off (0)
+*/
+NSPR_API(void) PR_SetThreadRecycleMode(PRUint32 flag);
+
+
+/*---------------------------------------------------------------------------
+** THREAD PRIVATE FUNCTIONS FOR GARBAGE COLLECTIBLE THREADS
+---------------------------------------------------------------------------*/
+
+/*
+** Only Garbage collectible threads participate in resume all, suspend all and
+** enumeration operations.  They are also different during creation when
+** platform specific action may be needed (For example, all Solaris GC able
+** threads are bound threads).
+*/
+
+/*
+** Same as PR_CreateThread except that the thread is marked as garbage
+** collectible.
+*/
+NSPR_API(PRThread*) PR_CreateThreadGCAble(PRThreadType type,
+        void (*start)(void *arg),
+        void *arg,
+        PRThreadPriority priority,
+        PRThreadScope scope,
+        PRThreadState state,
+        PRUint32 stackSize);
+
+/*
+** Same as PR_AttachThread except that the thread being attached is marked as
+** garbage collectible.
+*/
+NSPR_API(PRThread*) PR_AttachThreadGCAble(PRThreadType type,
+        PRThreadPriority priority,
+        PRThreadStack *stack);
+
+/*
+** Mark the thread as garbage collectible.
+*/
+NSPR_API(void) PR_SetThreadGCAble(void);
+
+/*
+** Unmark the thread as garbage collectible.
+*/
+NSPR_API(void) PR_ClearThreadGCAble(void);
+
+/*
+** This routine prevents all other GC able threads from running. This call is needed by
+** the garbage collector.
+*/
+NSPR_API(void) PR_SuspendAll(void);
+
+/*
+** This routine unblocks all other GC able threads that were suspended from running by
+** PR_SuspendAll(). This call is needed by the garbage collector.
+*/
+NSPR_API(void) PR_ResumeAll(void);
+
+/*
+** Return the thread stack pointer of the given thread.
+** Needed by the garbage collector.
+*/
+NSPR_API(void *) PR_GetSP(PRThread *thread);
+
+/*
+** Save the registers that the GC would find interesting into the thread
+** "t". isCurrent will be non-zero if the thread state that is being
+** saved is the currently executing thread. Return the address of the
+** first register to be scanned as well as the number of registers to
+** scan in "np".
+**
+** If "isCurrent" is non-zero then it is allowed for the thread context
+** area to be used as scratch storage to hold just the registers
+** necessary for scanning.
+**
+** This function simply calls the internal function _MD_HomeGCRegisters().
+*/
+NSPR_API(PRWord *) PR_GetGCRegisters(PRThread *t, int isCurrent, int *np);
+
+/*
+** (Get|Set)ExecutionEnvironent
+**
+** Used by Java to associate it's execution environment so garbage collector
+** can find it. If return is NULL, then it's probably not a collectable thread.
+**
+** There's no locking required around these calls.
+*/
+NSPR_API(void*) GetExecutionEnvironment(PRThread *thread);
+NSPR_API(void) SetExecutionEnvironment(PRThread* thread, void *environment);
+
+/*
+** Enumeration function that applies "func(thread,i,arg)" to each active
+** thread in the process. The enumerator returns PR_SUCCESS if the enumeration
+** should continue, any other value is considered failure, and enumeration
+** stops, returning the failure value from PR_EnumerateThreads.
+** Needed by the garbage collector.
+*/
+typedef PRStatus (PR_CALLBACK *PREnumerator)(PRThread *t, int i, void *arg);
+NSPR_API(PRStatus) PR_EnumerateThreads(PREnumerator func, void *arg);
+
+/*
+** Signature of a thread stack scanning function. It is applied to every
+** contiguous group of potential pointers within a thread. Count denotes the
+** number of pointers.
+*/
+typedef PRStatus
+(PR_CALLBACK *PRScanStackFun)(PRThread* t,
+                              void** baseAddr, PRUword count, void* closure);
+
+/*
+** Applies scanFun to all contiguous groups of potential pointers
+** within a thread. This includes the stack, registers, and thread-local
+** data. If scanFun returns a status value other than PR_SUCCESS the scan
+** is aborted, and the status value is returned.
+*/
+NSPR_API(PRStatus)
+PR_ThreadScanStackPointers(PRThread* t,
+                           PRScanStackFun scanFun, void* scanClosure);
+
+/*
+** Calls PR_ThreadScanStackPointers for every thread.
+*/
+NSPR_API(PRStatus)
+PR_ScanStackPointers(PRScanStackFun scanFun, void* scanClosure);
+
+/*
+** Returns a conservative estimate on the amount of stack space left
+** on a thread in bytes, sufficient for making decisions about whether
+** to continue recursing or not.
+*/
+NSPR_API(PRUword)
+PR_GetStackSpaceLeft(PRThread* t);
+
+/*---------------------------------------------------------------------------
+** THREAD CPU PRIVATE FUNCTIONS
+---------------------------------------------------------------------------*/
+
+/*
+** Get a pointer to the primordial CPU.
+*/
+NSPR_API(struct _PRCPU *) _PR_GetPrimordialCPU(void);
+
+/*---------------------------------------------------------------------------
+** THREAD SYNCHRONIZATION PRIVATE FUNCTIONS
+---------------------------------------------------------------------------*/
+
+/*
+** Create a new named monitor (named for debugging purposes).
+**  Monitors are re-entrant locks with a built-in condition variable.
+**
+** This may fail if memory is tight or if some operating system resource
+** is low.
+*/
+NSPR_API(PRMonitor*) PR_NewNamedMonitor(const char* name);
+
+/*
+** Test and then lock the lock if it's not already locked by some other
+** thread. Return PR_FALSE if some other thread owned the lock at the
+** time of the call.
+*/
+NSPR_API(PRBool) PR_TestAndLock(PRLock *lock);
+
+/*
+** Test and then enter the mutex associated with the monitor if it's not
+** already entered by some other thread. Return PR_FALSE if some other
+** thread owned the mutex at the time of the call.
+*/
+NSPR_API(PRBool) PR_TestAndEnterMonitor(PRMonitor *mon);
+
+/*
+** Return the number of times that the current thread has entered the
+** mutex. Returns zero if the current thread has not entered the mutex.
+*/
+NSPR_API(PRIntn) PR_GetMonitorEntryCount(PRMonitor *mon);
+
+/*
+** Just like PR_CEnterMonitor except that if the monitor is owned by
+** another thread NULL is returned.
+*/
+NSPR_API(PRMonitor*) PR_CTestAndEnterMonitor(void *address);
+
+/*---------------------------------------------------------------------------
+** PLATFORM-SPECIFIC INITIALIZATION FUNCTIONS
+---------------------------------------------------------------------------*/
+#if defined(XP_OS2)
+/*
+** These functions need to be called at the start and end of a thread.
+** An EXCEPTIONREGISTRATIONRECORD must be declared on the stack and its
+** address passed to the two functions.
+*/
+NSPR_API(void) PR_OS2_SetFloatExcpHandler(EXCEPTIONREGISTRATIONRECORD* e);
+NSPR_API(void) PR_OS2_UnsetFloatExcpHandler(EXCEPTIONREGISTRATIONRECORD* e);
+#endif /* XP_OS2 */
+
+/* I think PR_GetMonitorEntryCount is useless. All you really want is this... */
+#define PR_InMonitor(m)     (PR_GetMonitorEntryCount(m) > 0)
+
+/*---------------------------------------------------------------------------
+** Special X-Lock hack for client
+---------------------------------------------------------------------------*/
+
+#ifdef XP_UNIX
+extern void PR_XLock(void);
+extern void PR_XUnlock(void);
+extern PRBool PR_XIsLocked(void);
+#endif /* XP_UNIX */
+
+PR_END_EXTERN_C
+
+#endif /* pprthred_h___ */
diff --git a/nsprpub/pr/include/private/primpl.h b/nsprpub/pr/include/private/primpl.h
new file mode 100644
index 0000000000..3f5a150470
--- /dev/null
+++ b/nsprpub/pr/include/private/primpl.h
@@ -0,0 +1,2149 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef primpl_h___
+#define primpl_h___
+
+#if defined(_PR_PTHREADS)
+#include <pthread.h>
+#endif
+
+#ifdef WIN32
+/*
+ * Allow use of functions and symbols first defined in Win2k.
+ */
+#if !defined(WINVER) || (WINVER < 0x0500)
+#undef WINVER
+#define WINVER 0x0500
+#endif
+#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0500)
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x0500
+#endif
+#endif /* WIN32 */
+
+#include "nspr.h"
+#include "prpriv.h"
+
+typedef struct PRSegment PRSegment;
+
+#include "md/prosdep.h"
+#include "obsolete/probslet.h"
+
+#ifdef _PR_HAVE_POSIX_SEMAPHORES
+#include <semaphore.h>
+#elif defined(_PR_HAVE_SYSV_SEMAPHORES)
+#include <sys/sem.h>
+#endif
+
+#ifdef HAVE_SYSCALL
+#include <sys/syscall.h>
+#endif
+
+/*************************************************************************
+*****  A Word about Model Dependent Function Naming Convention ***********
+*************************************************************************/
+
+/*
+NSPR 2.0 must implement its function across a range of platforms
+including: MAC, Windows/16, Windows/95, Windows/NT, and several
+variants of Unix. Each implementation shares common code as well
+as having platform dependent portions. This standard describes how
+the model dependent portions are to be implemented.
+
+In header file pr/include/primpl.h, each publicly declared
+platform dependent function is declared as:
+
+NSPR_API void _PR_MD_FUNCTION( long arg1, long arg2 );
+#define _PR_MD_FUNCTION _MD_FUNCTION
+
+In header file pr/include/md/<platform>/_<platform>.h,
+each #define'd macro is redefined as one of:
+
+#define _MD_FUNCTION <blanks>
+#define _MD_FUNCTION <expanded macro>
+#define _MD_FUNCTION <osFunction>
+#define _MD_FUNCTION <_MD_Function>
+
+Where:
+
+<blanks> is no definition at all. In this case, the function is not implemented
+and is never called for this platform.
+For example:
+#define _MD_INIT_CPUS()
+
+<expanded macro> is a C language macro expansion.
+For example:
+#define        _MD_CLEAN_THREAD(_thread) \
+    PR_BEGIN_MACRO \
+        PR_DestroyCondVar(_thread->md.asyncIOCVar); \
+        PR_DestroyLock(_thread->md.asyncIOLock); \
+    PR_END_MACRO
+
+<osFunction> is some function implemented by the host operating system.
+For example:
+#define _MD_EXIT        exit
+
+<_MD_function> is the name of a function implemented for this platform in
+pr/src/md/<platform>/<soruce>.c file.
+For example:
+#define        _MD_GETFILEINFO         _MD_GetFileInfo
+
+In <source>.c, the implementation is:
+PR_IMPLEMENT(PRInt32) _MD_GetFileInfo(const char *fn, PRFileInfo *info);
+*/
+
+PR_BEGIN_EXTERN_C
+
+typedef struct _MDLock _MDLock;
+typedef struct _MDCVar _MDCVar;
+typedef struct _MDSegment _MDSegment;
+typedef struct _MDThread _MDThread;
+typedef struct _MDThreadStack _MDThreadStack;
+typedef struct _MDSemaphore _MDSemaphore;
+typedef struct _MDDir _MDDir;
+#ifdef MOZ_UNICODE
+typedef struct _MDDirUTF16 _MDDirUTF16;
+#endif /* MOZ_UNICODE */
+typedef struct _MDFileDesc _MDFileDesc;
+typedef struct _MDProcess _MDProcess;
+typedef struct _MDFileMap _MDFileMap;
+
+#if defined(_PR_PTHREADS)
+
+/*
+** The following definitions are unique to implementing NSPR using pthreads.
+** Since pthreads defines most of the thread and thread synchronization
+** stuff, this is a pretty small set.
+*/
+
+#define PT_CV_NOTIFIED_LENGTH 6
+typedef struct _PT_Notified _PT_Notified;
+struct _PT_Notified
+{
+    PRIntn length;              /* # of used entries in this structure */
+    struct
+    {
+        PRCondVar *cv;          /* the condition variable notified */
+        PRIntn times;           /* and the number of times notified */
+    } cv[PT_CV_NOTIFIED_LENGTH];
+    _PT_Notified *link;         /* link to another of these | NULL */
+};
+
+/*
+ * bits defined for pthreads 'state' field
+ */
+#define PT_THREAD_DETACHED  0x01    /* thread can't be joined */
+#define PT_THREAD_GLOBAL    0x02    /* a global thread (unlikely) */
+#define PT_THREAD_SYSTEM    0x04    /* system (not user) thread */
+#define PT_THREAD_PRIMORD   0x08    /* this is the primordial thread */
+#define PT_THREAD_ABORTED   0x10    /* thread has been interrupted */
+#define PT_THREAD_GCABLE    0x20    /* thread is garbage collectible */
+#define PT_THREAD_SUSPENDED 0x40    /* thread has been suspended */
+#define PT_THREAD_FOREIGN   0x80    /* thread is not one of ours */
+#define PT_THREAD_BOUND     0x100    /* a bound-global thread */
+
+#define _PT_THREAD_INTERRUPTED(thr)                 \
+        (!(thr->interrupt_blocked) && (thr->state & PT_THREAD_ABORTED))
+#define _PT_THREAD_BLOCK_INTERRUPT(thr)             \
+        (thr->interrupt_blocked = 1)
+#define _PT_THREAD_UNBLOCK_INTERRUPT(thr)           \
+        (thr->interrupt_blocked = 0)
+
+#define _PT_IS_GCABLE_THREAD(thr) ((thr)->state & PT_THREAD_GCABLE)
+
+/*
+** Possible values for thread's suspend field
+** Note that the first two can be the same as they are really mutually exclusive,
+** i.e. both cannot be happening at the same time. We have two symbolic names
+** just as a mnemonic.
+**/
+#define PT_THREAD_RESUMED   0x80    /* thread has been resumed */
+#define PT_THREAD_SETGCABLE 0x100   /* set the GCAble flag */
+
+#if defined(DEBUG)
+
+typedef struct PTDebug
+{
+    PRTime timeStarted;
+    PRUintn locks_created, locks_destroyed;
+    PRUintn locks_acquired, locks_released;
+    PRUintn cvars_created, cvars_destroyed;
+    PRUintn cvars_notified, delayed_cv_deletes;
+} PTDebug;
+
+#endif /* defined(DEBUG) */
+
+NSPR_API(void) PT_FPrintStats(PRFileDesc *fd, const char *msg);
+
+/*
+ * On Linux and its derivatives POSIX priority scheduling works only for
+ * real-time threads. On those platforms we set thread's nice values
+ * instead which requires us to track kernel thread IDs for each POSIX
+ * thread we create.
+ */
+#if defined(LINUX) && defined(HAVE_SETPRIORITY) && \
+    ((defined(HAVE_SYSCALL) && defined(SYS_gettid)) || defined(HAVE_GETTID))
+#define _PR_NICE_PRIORITY_SCHEDULING
+#endif
+
+#else /* defined(_PR_PTHREADS) */
+
+NSPR_API(void) PT_FPrintStats(PRFileDesc *fd, const char *msg);
+
+/*
+** This section is contains those parts needed to implement NSPR on
+** platforms in general. One would assume that the pthreads implementation
+** included lots of the same types, at least conceptually.
+*/
+
+/*
+ * Local threads only.  No multiple CPU support and hence all the
+ * following routines are no-op.
+ */
+#ifdef _PR_LOCAL_THREADS_ONLY
+
+#define        _PR_MD_SUSPEND_THREAD(thread)
+#define        _PR_MD_RESUME_THREAD(thread)
+#define        _PR_MD_SUSPEND_CPU(cpu)
+#define        _PR_MD_RESUME_CPU(cpu)
+#define        _PR_MD_BEGIN_SUSPEND_ALL()
+#define        _PR_MD_END_SUSPEND_ALL()
+#define        _PR_MD_BEGIN_RESUME_ALL()
+#define        _PR_MD_END_RESUME_ALL()
+#define _PR_MD_INIT_ATTACHED_THREAD(thread) PR_FAILURE
+
+#endif
+
+typedef struct _PRCPUQueue _PRCPUQueue;
+typedef struct _PRCPU _PRCPU;
+typedef struct _MDCPU _MDCPU;
+
+struct _PRCPUQueue {
+    _MDLock  runQLock;          /* lock for the run + wait queues */
+    _MDLock  sleepQLock;        /* lock for the run + wait queues */
+    _MDLock  miscQLock;         /* lock for the run + wait queues */
+
+    PRCList runQ[PR_PRIORITY_LAST + 1]; /* run queue for this CPU */
+    PRUint32  runQReadyMask;
+    PRCList sleepQ;
+    PRIntervalTime sleepQmax;
+    PRCList pauseQ;
+    PRCList suspendQ;
+    PRCList waitingToJoinQ;
+
+    PRUintn   numCPUs;          /* number of CPUs using this Q */
+};
+
+struct _PRCPU {
+    PRCList links;              /* link list of CPUs */
+    PRUint32 id;                /* id for this CPU */
+
+    union {
+        PRInt32 bits;
+        PRUint8 missed[4];
+    } u;
+    PRIntn where;               /* index into u.missed */
+    PRPackedBool paused;        /* cpu is paused */
+    PRPackedBool exit;          /* cpu should exit */
+
+    PRThread *thread;           /* native thread for this CPUThread */
+    PRThread *idle_thread;      /* user-level idle thread for this CPUThread */
+
+    PRIntervalTime last_clock;  /* the last time we went into
+                                 * _PR_ClockInterrupt() on this CPU
+                                 */
+
+    _PRCPUQueue *queue;
+
+    _MDCPU md;
+};
+
+typedef struct _PRInterruptTable {
+    const char *name;
+    PRUintn missed_bit;
+    void (*handler)(void);
+} _PRInterruptTable;
+
+#define _PR_CPU_PTR(_qp) \
+    ((_PRCPU*) ((char*) (_qp) - offsetof(_PRCPU,links)))
+
+#if !defined(WIN32) && !defined(XP_OS2) \
+        && !(defined(SOLARIS) && defined(_PR_GLOBAL_THREADS_ONLY))
+#define _MD_GET_ATTACHED_THREAD()        (_PR_MD_CURRENT_THREAD())
+#endif
+
+#ifdef _PR_LOCAL_THREADS_ONLY
+
+NSPR_API(struct _PRCPU *)              _pr_currentCPU;
+NSPR_API(PRThread *)                   _pr_currentThread;
+NSPR_API(PRThread *)                   _pr_lastThread;
+NSPR_API(PRInt32)                      _pr_intsOff;
+
+#define _MD_CURRENT_CPU()               (_pr_currentCPU)
+#define _MD_SET_CURRENT_CPU(_cpu)       (_pr_currentCPU = (_cpu))
+#define _MD_CURRENT_THREAD()            (_pr_currentThread)
+#define _MD_SET_CURRENT_THREAD(_thread) (_pr_currentThread = (_thread))
+#define _MD_LAST_THREAD()               (_pr_lastThread)
+#define _MD_SET_LAST_THREAD(t)          (_pr_lastThread = t)
+
+#define _MD_GET_INTSOFF()               (_pr_intsOff)
+#define _MD_SET_INTSOFF(_val)           (_pr_intsOff = _val)
+
+
+/* The unbalanced curly braces in these two macros are intentional */
+#define _PR_LOCK_HEAP() { PRIntn _is; if (_pr_currentCPU) _PR_INTSOFF(_is);
+#define _PR_UNLOCK_HEAP() if (_pr_currentCPU) _PR_INTSON(_is); }
+
+#endif /* _PR_LOCAL_THREADS_ONLY */
+
+extern PRInt32                  _native_threads_only;
+
+#if defined(_PR_GLOBAL_THREADS_ONLY)
+
+#define _MD_GET_INTSOFF() 0
+#define _MD_SET_INTSOFF(_val)
+#define _PR_INTSOFF(_is)
+#define _PR_FAST_INTSON(_is)
+#define _PR_INTSON(_is)
+#define _PR_THREAD_LOCK(_thread)
+#define _PR_THREAD_UNLOCK(_thread)
+#define _PR_RUNQ_LOCK(cpu)
+#define _PR_RUNQ_UNLOCK(cpu)
+#define _PR_SLEEPQ_LOCK(thread)
+#define _PR_SLEEPQ_UNLOCK(thread)
+#define _PR_MISCQ_LOCK(thread)
+#define _PR_MISCQ_UNLOCK(thread)
+#define _PR_CPU_LIST_LOCK()
+#define _PR_CPU_LIST_UNLOCK()
+
+#define _PR_ADD_RUNQ(_thread, _cpu, _pri)
+#define _PR_DEL_RUNQ(_thread)
+#define _PR_ADD_SLEEPQ(_thread, _timeout)
+#define _PR_DEL_SLEEPQ(_thread, _propogate)
+#define _PR_ADD_JOINQ(_thread, _cpu)
+#define _PR_DEL_JOINQ(_thread)
+#define _PR_ADD_SUSPENDQ(_thread, _cpu)
+#define _PR_DEL_SUSPENDQ(_thread)
+
+#define _PR_THREAD_SWITCH_CPU(_thread, _newCPU)
+
+#define _PR_IS_NATIVE_THREAD(thread) 1
+#define _PR_IS_NATIVE_THREAD_SUPPORTED() 1
+
+#else
+
+#define _PR_INTSOFF(_is) \
+    PR_BEGIN_MACRO \
+        (_is) = _PR_MD_GET_INTSOFF(); \
+        _PR_MD_SET_INTSOFF(1); \
+    PR_END_MACRO
+
+#define _PR_FAST_INTSON(_is) \
+    PR_BEGIN_MACRO \
+        _PR_MD_SET_INTSOFF(_is); \
+    PR_END_MACRO
+
+#define _PR_INTSON(_is) \
+    PR_BEGIN_MACRO \
+        if ((_is == 0) && (_PR_MD_CURRENT_CPU())->u.bits) \
+                _PR_IntsOn((_PR_MD_CURRENT_CPU())); \
+        _PR_MD_SET_INTSOFF(_is); \
+    PR_END_MACRO
+
+#ifdef _PR_LOCAL_THREADS_ONLY
+
+#define _PR_IS_NATIVE_THREAD(thread) 0
+#define _PR_THREAD_LOCK(_thread)
+#define _PR_THREAD_UNLOCK(_thread)
+#define _PR_RUNQ_LOCK(cpu)
+#define _PR_RUNQ_UNLOCK(cpu)
+#define _PR_SLEEPQ_LOCK(thread)
+#define _PR_SLEEPQ_UNLOCK(thread)
+#define _PR_MISCQ_LOCK(thread)
+#define _PR_MISCQ_UNLOCK(thread)
+#define _PR_CPU_LIST_LOCK()
+#define _PR_CPU_LIST_UNLOCK()
+
+#define _PR_ADD_RUNQ(_thread, _cpu, _pri) \
+    PR_BEGIN_MACRO \
+    PR_APPEND_LINK(&(_thread)->links, &_PR_RUNQ(_cpu)[_pri]); \
+    _PR_RUNQREADYMASK(_cpu) |= (1L << _pri); \
+    PR_END_MACRO
+
+#define _PR_DEL_RUNQ(_thread) \
+    PR_BEGIN_MACRO \
+    _PRCPU *_cpu = _thread->cpu; \
+    PRInt32 _pri = _thread->priority; \
+    PR_REMOVE_LINK(&(_thread)->links); \
+    if (PR_CLIST_IS_EMPTY(&_PR_RUNQ(_cpu)[_pri])) \
+        _PR_RUNQREADYMASK(_cpu) &= ~(1L << _pri); \
+    PR_END_MACRO
+
+#define _PR_ADD_SLEEPQ(_thread, _timeout) \
+    _PR_AddSleepQ(_thread, _timeout);
+
+#define _PR_DEL_SLEEPQ(_thread, _propogate) \
+    _PR_DelSleepQ(_thread, _propogate);
+
+#define _PR_ADD_JOINQ(_thread, _cpu) \
+    PR_APPEND_LINK(&(_thread)->links, &_PR_WAITINGTOJOINQ(_cpu));
+
+#define _PR_DEL_JOINQ(_thread) \
+    PR_REMOVE_LINK(&(_thread)->links);
+
+#define _PR_ADD_SUSPENDQ(_thread, _cpu) \
+    PR_APPEND_LINK(&(_thread)->links, &_PR_SUSPENDQ(_cpu));
+
+#define _PR_DEL_SUSPENDQ(_thread) \
+    PR_REMOVE_LINK(&(_thread)->links);
+
+#define _PR_THREAD_SWITCH_CPU(_thread, _newCPU)
+
+#define _PR_IS_NATIVE_THREAD_SUPPORTED() 0
+
+#else        /* _PR_LOCAL_THREADS_ONLY */
+
+/* These are for the "combined" thread model */
+
+#define _PR_THREAD_LOCK(_thread) \
+    _PR_MD_LOCK(&(_thread)->threadLock);
+
+#define _PR_THREAD_UNLOCK(_thread) \
+    _PR_MD_UNLOCK(&(_thread)->threadLock);
+
+#define _PR_RUNQ_LOCK(_cpu) \
+    PR_BEGIN_MACRO \
+    _PR_MD_LOCK(&(_cpu)->queue->runQLock );\
+    PR_END_MACRO
+
+#define _PR_RUNQ_UNLOCK(_cpu) \
+    PR_BEGIN_MACRO \
+    _PR_MD_UNLOCK(&(_cpu)->queue->runQLock );\
+    PR_END_MACRO
+
+#define _PR_SLEEPQ_LOCK(_cpu) \
+    _PR_MD_LOCK(&(_cpu)->queue->sleepQLock );
+
+#define _PR_SLEEPQ_UNLOCK(_cpu) \
+    _PR_MD_UNLOCK(&(_cpu)->queue->sleepQLock );
+
+#define _PR_MISCQ_LOCK(_cpu) \
+    _PR_MD_LOCK(&(_cpu)->queue->miscQLock );
+
+#define _PR_MISCQ_UNLOCK(_cpu) \
+    _PR_MD_UNLOCK(&(_cpu)->queue->miscQLock );
+
+#define _PR_CPU_LIST_LOCK()                 _PR_MD_LOCK(&_pr_cpuLock)
+#define _PR_CPU_LIST_UNLOCK()               _PR_MD_UNLOCK(&_pr_cpuLock)
+
+#define QUEUE_RUN           0x1
+#define QUEUE_SLEEP         0x2
+#define QUEUE_JOIN          0x4
+#define QUEUE_SUSPEND       0x8
+#define QUEUE_LOCK          0x10
+
+#define _PR_ADD_RUNQ(_thread, _cpu, _pri) \
+    PR_BEGIN_MACRO \
+    PR_APPEND_LINK(&(_thread)->links, &_PR_RUNQ(_cpu)[_pri]); \
+    _PR_RUNQREADYMASK(_cpu) |= (1L << _pri); \
+    PR_ASSERT((_thread)->queueCount == 0); \
+    (_thread)->queueCount = QUEUE_RUN; \
+    PR_END_MACRO
+
+#define _PR_DEL_RUNQ(_thread) \
+    PR_BEGIN_MACRO \
+    _PRCPU *_cpu = _thread->cpu; \
+    PRInt32 _pri = _thread->priority; \
+    PR_REMOVE_LINK(&(_thread)->links); \
+    if (PR_CLIST_IS_EMPTY(&_PR_RUNQ(_cpu)[_pri])) \
+        _PR_RUNQREADYMASK(_cpu) &= ~(1L << _pri); \
+    PR_ASSERT((_thread)->queueCount == QUEUE_RUN);\
+    (_thread)->queueCount = 0; \
+    PR_END_MACRO
+
+#define _PR_ADD_SLEEPQ(_thread, _timeout) \
+    PR_ASSERT((_thread)->queueCount == 0); \
+    (_thread)->queueCount = QUEUE_SLEEP; \
+    _PR_AddSleepQ(_thread, _timeout);
+
+#define _PR_DEL_SLEEPQ(_thread, _propogate) \
+    PR_ASSERT((_thread)->queueCount == QUEUE_SLEEP);\
+    (_thread)->queueCount = 0; \
+    _PR_DelSleepQ(_thread, _propogate);
+
+#define _PR_ADD_JOINQ(_thread, _cpu) \
+    PR_ASSERT((_thread)->queueCount == 0); \
+    (_thread)->queueCount = QUEUE_JOIN; \
+    PR_APPEND_LINK(&(_thread)->links, &_PR_WAITINGTOJOINQ(_cpu));
+
+#define _PR_DEL_JOINQ(_thread) \
+    PR_ASSERT((_thread)->queueCount == QUEUE_JOIN);\
+    (_thread)->queueCount = 0; \
+    PR_REMOVE_LINK(&(_thread)->links);
+
+#define _PR_ADD_SUSPENDQ(_thread, _cpu) \
+    PR_ASSERT((_thread)->queueCount == 0); \
+    (_thread)->queueCount = QUEUE_SUSPEND; \
+    PR_APPEND_LINK(&(_thread)->links, &_PR_SUSPENDQ(_cpu));
+
+#define _PR_DEL_SUSPENDQ(_thread) \
+    PR_ASSERT((_thread)->queueCount == QUEUE_SUSPEND);\
+    (_thread)->queueCount = 0; \
+    PR_REMOVE_LINK(&(_thread)->links);
+
+#define _PR_THREAD_SWITCH_CPU(_thread, _newCPU) \
+    (_thread)->cpu = (_newCPU);
+
+#define _PR_IS_NATIVE_THREAD(thread) (thread->flags & _PR_GLOBAL_SCOPE)
+#define _PR_IS_NATIVE_THREAD_SUPPORTED() 1
+
+#endif /* _PR_LOCAL_THREADS_ONLY */
+
+#endif /* _PR_GLOBAL_THREADS_ONLY */
+
+#define _PR_SET_RESCHED_FLAG() _PR_MD_CURRENT_CPU()->u.missed[3] = 1
+#define _PR_CLEAR_RESCHED_FLAG() _PR_MD_CURRENT_CPU()->u.missed[3] = 0
+
+extern _PRInterruptTable _pr_interruptTable[];
+
+/* Bits for _pr_interruptState.u.missed[0,1] */
+#define _PR_MISSED_CLOCK    0x1
+#define _PR_MISSED_IO        0x2
+#define _PR_MISSED_CHILD    0x4
+
+extern void _PR_IntsOn(_PRCPU *cpu);
+
+NSPR_API(void) _PR_WakeupCPU(void);
+NSPR_API(void) _PR_PauseCPU(void);
+
+/************************************************************************/
+
+#define _PR_LOCK_LOCK(_lock) \
+    _PR_MD_LOCK(&(_lock)->ilock);
+#define _PR_LOCK_UNLOCK(_lock) \
+    _PR_MD_UNLOCK(&(_lock)->ilock);
+
+extern void _PR_UnblockLockWaiter(PRLock *lock);
+extern PRStatus _PR_InitLock(PRLock *lock);
+extern void _PR_FreeLock(PRLock *lock);
+
+#define _PR_LOCK_PTR(_qp) \
+    ((PRLock*) ((char*) (_qp) - offsetof(PRLock,links)))
+
+/************************************************************************/
+
+#define _PR_CVAR_LOCK(_cvar) \
+    _PR_MD_LOCK(&(_cvar)->ilock);
+#define _PR_CVAR_UNLOCK(_cvar) \
+    _PR_MD_UNLOCK(&(_cvar)->ilock);
+
+extern PRStatus _PR_InitCondVar(PRCondVar *cvar, PRLock *lock);
+extern void _PR_FreeCondVar(PRCondVar *cvar);
+extern PRStatus _PR_WaitCondVar(
+    PRThread *thread, PRCondVar *cvar, PRLock *lock, PRIntervalTime timeout);
+extern void _PR_NotifyCondVar(PRCondVar *cvar, PRThread *me);
+extern PRUint32 _PR_CondVarToString(PRCondVar *cvar, char *buf, PRUint32 buflen);
+
+NSPR_API(void) _PR_Notify(PRMonitor *mon, PRBool all, PRBool sticky);
+
+/* PRThread.flags */
+#define _PR_SYSTEM          0x01
+#define _PR_INTERRUPT       0x02
+#define _PR_ATTACHED        0x04        /* created via PR_AttachThread */
+#define _PR_PRIMORDIAL      0x08        /* the thread that called PR_Init */
+#define _PR_ON_SLEEPQ       0x10        /* thread is on the sleepQ */
+#define _PR_ON_PAUSEQ       0x20        /* thread is on the pauseQ */
+#define _PR_SUSPENDING      0x40        /* thread wants to suspend */
+#define _PR_GLOBAL_SCOPE    0x80        /* thread is global scope */
+#define _PR_IDLE_THREAD     0x200       /* this is an idle thread        */
+#define _PR_GCABLE_THREAD   0x400       /* this is a collectable thread */
+#define _PR_BOUND_THREAD    0x800       /* a bound thread */
+#define _PR_INTERRUPT_BLOCKED   0x1000  /* interrupts blocked */
+
+/* PRThread.state */
+#define _PR_UNBORN       0
+#define _PR_RUNNABLE     1
+#define _PR_RUNNING      2
+#define _PR_LOCK_WAIT    3
+#define _PR_COND_WAIT    4
+#define _PR_JOIN_WAIT    5
+#define _PR_IO_WAIT      6
+#define _PR_SUSPENDED    7
+#define _PR_DEAD_STATE   8  /* for debugging */
+
+/* PRThreadStack.flags */
+#define _PR_STACK_VM            0x1    /* using vm instead of malloc */
+#define _PR_STACK_MAPPED        0x2    /* vm is mapped */
+#define _PR_STACK_PRIMORDIAL    0x4    /* stack for primordial thread */
+
+/*
+** If the default stcksize from the client is zero, we need to pick a machine
+** dependent value.  This is only for standard user threads.  For custom threads,
+** 0 has a special meaning.
+** Adjust stackSize. Round up to a page boundary.
+*/
+
+#ifndef _MD_MINIMUM_STACK_SIZE
+#define _MD_MINIMUM_STACK_SIZE  0
+#endif
+
+#if (!defined(HAVE_CUSTOM_USER_THREADS))
+#define        _PR_ADJUST_STACKSIZE(stackSize) \
+        PR_BEGIN_MACRO \
+    if (stackSize == 0) \
+                stackSize = _MD_DEFAULT_STACK_SIZE; \
+    if (stackSize < _MD_MINIMUM_STACK_SIZE) \
+                stackSize = _MD_MINIMUM_STACK_SIZE; \
+    stackSize = (stackSize + (1 << _pr_pageShift) - 1) >> _pr_pageShift; \
+    stackSize <<= _pr_pageShift; \
+        PR_END_MACRO
+#else
+#define        _PR_ADJUST_STACKSIZE(stackSize)
+#endif
+
+#define _PR_IS_GCABLE_THREAD(thr) ((thr)->flags & _PR_GCABLE_THREAD)
+
+#define _PR_PENDING_INTERRUPT(thr)                  \
+        (!((thr)->flags & _PR_INTERRUPT_BLOCKED) && ((thr)->flags & _PR_INTERRUPT))
+#define _PR_THREAD_BLOCK_INTERRUPT(thr)         \
+        (thr->flags |= _PR_INTERRUPT_BLOCKED)
+#define _PR_THREAD_UNBLOCK_INTERRUPT(thr)           \
+        (thr->flags &= ~_PR_INTERRUPT_BLOCKED)
+
+#define _PR_THREAD_PTR(_qp) \
+    ((PRThread*) ((char*) (_qp) - offsetof(PRThread,links)))
+
+#define _PR_ACTIVE_THREAD_PTR(_qp) \
+    ((PRThread*) ((char*) (_qp) - offsetof(PRThread,active)))
+
+#define _PR_THREAD_CONDQ_PTR(_qp) \
+    ((PRThread*) ((char*) (_qp) - offsetof(PRThread,waitQLinks)))
+
+#define _PR_THREAD_MD_TO_PTR(_md) \
+    ((PRThread*) ((char*) (_md) - offsetof(PRThread,md)))
+
+#define _PR_THREAD_STACK_TO_PTR(_stack) \
+    ((PRThread*) (_stack->thr))
+
+extern PRCList _pr_active_local_threadQ;
+extern PRCList _pr_active_global_threadQ;
+extern PRCList _pr_cpuQ;
+extern _MDLock  _pr_cpuLock;
+extern PRInt32 _pr_md_idle_cpus;
+
+#define _PR_ACTIVE_LOCAL_THREADQ()          _pr_active_local_threadQ
+#define _PR_ACTIVE_GLOBAL_THREADQ()         _pr_active_global_threadQ
+#define _PR_CPUQ()                          _pr_cpuQ
+#define _PR_RUNQ(_cpu)                      ((_cpu)->queue->runQ)
+#define _PR_RUNQREADYMASK(_cpu)             ((_cpu)->queue->runQReadyMask)
+#define _PR_SLEEPQ(_cpu)                    ((_cpu)->queue->sleepQ)
+#define _PR_SLEEPQMAX(_cpu)                 ((_cpu)->queue->sleepQmax)
+#define _PR_PAUSEQ(_cpu)                    ((_cpu)->queue->pauseQ)
+#define _PR_SUSPENDQ(_cpu)                  ((_cpu)->queue->suspendQ)
+#define _PR_WAITINGTOJOINQ(_cpu)            ((_cpu)->queue->waitingToJoinQ)
+
+extern PRUint32 _pr_recycleThreads;   /* Flag for behavior on thread cleanup */
+extern PRLock *_pr_deadQLock;
+extern PRUint32 _pr_numNativeDead;
+extern PRUint32 _pr_numUserDead;
+extern PRCList _pr_deadNativeQ;
+extern PRCList _pr_deadUserQ;
+#define _PR_DEADNATIVEQ     _pr_deadNativeQ
+#define _PR_DEADUSERQ       _pr_deadUserQ
+#define _PR_DEADQ_LOCK      PR_Lock(_pr_deadQLock);
+#define _PR_DEADQ_UNLOCK    PR_Unlock(_pr_deadQLock);
+#define _PR_INC_DEADNATIVE  (_pr_numNativeDead++)
+#define _PR_DEC_DEADNATIVE  (_pr_numNativeDead--)
+#define _PR_NUM_DEADNATIVE  (_pr_numNativeDead)
+#define _PR_INC_DEADUSER    (_pr_numUserDead++)
+#define _PR_DEC_DEADUSER    (_pr_numUserDead--)
+#define _PR_NUM_DEADUSER    (_pr_numUserDead)
+
+extern PRUint32 _pr_utid;
+
+extern struct _PRCPU  *_pr_primordialCPU;
+
+extern PRLock *_pr_activeLock;          /* lock for userActive and systemActive */
+extern PRInt32 _pr_userActive;          /* number of active user threads */
+extern PRInt32 _pr_systemActive;        /* number of active system threads */
+extern PRInt32 _pr_primordialExitCount; /* number of user threads left
+                                         * before the primordial thread
+                                         * can exit.  */
+extern PRCondVar *_pr_primordialExitCVar; /* the condition variable for
+                                           * notifying the primordial thread
+                                           * when all other user threads
+                                           * have terminated.  */
+
+extern PRUintn _pr_maxPTDs;
+
+extern PRLock *_pr_terminationCVLock;
+
+/*************************************************************************
+* Internal routines either called by PR itself or from machine-dependent *
+* code.                                                                  *
+*************************************************************************/
+
+extern void _PR_ClockInterrupt(void);
+
+extern void _PR_Schedule(void);
+extern void _PR_SetThreadPriority(
+    PRThread* thread, PRThreadPriority priority);
+
+/***********************************************************************
+** FUNCTION:    _PR_NewSegment()
+** DESCRIPTION:
+**   Allocate a memory segment. The "size" value is rounded up to the
+**   native system page size and a page aligned portion of memory is
+**   returned.  This memory is not part of the malloc heap. If "vaddr" is
+**   not NULL then PR tries to allocate the segment at the desired virtual
+**   address.
+** INPUTS:  size:  size of the desired memory segment
+**          vaddr:  address at which the newly aquired segment is to be
+**                  mapped into memory.
+** OUTPUTS: a memory segment is allocated, a PRSegment is allocated
+** RETURN:  pointer to PRSegment
+***********************************************************************/
+extern PRSegment* _PR_NewSegment(PRUint32 size, void *vaddr);
+
+/***********************************************************************
+** FUNCTION:    _PR_DestroySegment()
+** DESCRIPTION:
+**   The memory segment and the PRSegment are freed
+** INPUTS:  seg:  pointer to PRSegment to be freed
+** OUTPUTS: the the PRSegment and its associated memory segment are freed
+** RETURN:  void
+***********************************************************************/
+extern void _PR_DestroySegment(PRSegment *seg);
+
+extern PRThreadStack * _PR_NewStack(PRUint32 stackSize);
+extern void _PR_FreeStack(PRThreadStack *stack);
+extern PRBool _PR_NotifyThread (PRThread *thread, PRThread *me);
+extern void _PR_NotifyLockedThread (PRThread *thread);
+
+NSPR_API(void) _PR_AddSleepQ(PRThread *thread, PRIntervalTime timeout);
+NSPR_API(void) _PR_DelSleepQ(PRThread *thread, PRBool propogate_time);
+
+extern void _PR_AddThreadToRunQ(PRThread *me, PRThread *thread);
+
+NSPR_API(PRThread*) _PR_CreateThread(PRThreadType type,
+                                     void (*start)(void *arg),
+                                     void *arg,
+                                     PRThreadPriority priority,
+                                     PRThreadScope scope,
+                                     PRThreadState state,
+                                     PRUint32 stackSize,
+                                     PRUint32 flags);
+
+extern void _PR_NativeDestroyThread(PRThread *thread);
+extern void _PR_UserDestroyThread(PRThread *thread);
+
+extern PRThread* _PRI_AttachThread(
+    PRThreadType type, PRThreadPriority priority,
+    PRThreadStack *stack, PRUint32 flags);
+
+extern void _PRI_DetachThread(void);
+
+
+#define _PR_IO_PENDING(_thread) ((_thread)->io_pending)
+
+NSPR_API(void) _PR_MD_INIT_CPUS();
+#define    _PR_MD_INIT_CPUS _MD_INIT_CPUS
+
+NSPR_API(void) _PR_MD_WAKEUP_CPUS();
+#define    _PR_MD_WAKEUP_CPUS _MD_WAKEUP_CPUS
+
+/* Interrupts related */
+
+NSPR_API(void) _PR_MD_START_INTERRUPTS(void);
+#define    _PR_MD_START_INTERRUPTS _MD_START_INTERRUPTS
+
+NSPR_API(void) _PR_MD_STOP_INTERRUPTS(void);
+#define    _PR_MD_STOP_INTERRUPTS _MD_STOP_INTERRUPTS
+
+NSPR_API(void) _PR_MD_ENABLE_CLOCK_INTERRUPTS(void);
+#define    _PR_MD_ENABLE_CLOCK_INTERRUPTS _MD_ENABLE_CLOCK_INTERRUPTS
+
+NSPR_API(void) _PR_MD_DISABLE_CLOCK_INTERRUPTS(void);
+#define    _PR_MD_DISABLE_CLOCK_INTERRUPTS _MD_DISABLE_CLOCK_INTERRUPTS
+
+NSPR_API(void) _PR_MD_BLOCK_CLOCK_INTERRUPTS(void);
+#define    _PR_MD_BLOCK_CLOCK_INTERRUPTS _MD_BLOCK_CLOCK_INTERRUPTS
+
+NSPR_API(void) _PR_MD_UNBLOCK_CLOCK_INTERRUPTS(void);
+#define    _PR_MD_UNBLOCK_CLOCK_INTERRUPTS _MD_UNBLOCK_CLOCK_INTERRUPTS
+
+/* The _PR_MD_WAIT_LOCK and _PR_MD_WAKEUP_WAITER functions put to sleep and
+ * awaken a thread which is waiting on a lock or cvar.
+ */
+extern PRStatus _PR_MD_WAIT(PRThread *, PRIntervalTime timeout);
+#define    _PR_MD_WAIT _MD_WAIT
+
+extern PRStatus _PR_MD_WAKEUP_WAITER(PRThread *);
+#define    _PR_MD_WAKEUP_WAITER _MD_WAKEUP_WAITER
+
+#ifndef _PR_LOCAL_THREADS_ONLY /* not if only local threads supported */
+NSPR_API(void) _PR_MD_CLOCK_INTERRUPT(void);
+#define    _PR_MD_CLOCK_INTERRUPT _MD_CLOCK_INTERRUPT
+#endif
+
+/* Stack debugging */
+NSPR_API(void) _PR_MD_INIT_STACK(PRThreadStack *ts, PRIntn redzone);
+#define    _PR_MD_INIT_STACK _MD_INIT_STACK
+
+NSPR_API(void) _PR_MD_CLEAR_STACK(PRThreadStack* ts);
+#define    _PR_MD_CLEAR_STACK _MD_CLEAR_STACK
+
+/* CPU related */
+NSPR_API(PRInt32) _PR_MD_GET_INTSOFF(void);
+#define    _PR_MD_GET_INTSOFF _MD_GET_INTSOFF
+
+NSPR_API(void) _PR_MD_SET_INTSOFF(PRInt32 _val);
+#define    _PR_MD_SET_INTSOFF _MD_SET_INTSOFF
+
+NSPR_API(_PRCPU*) _PR_MD_CURRENT_CPU(void);
+#define    _PR_MD_CURRENT_CPU _MD_CURRENT_CPU
+
+NSPR_API(void) _PR_MD_SET_CURRENT_CPU(_PRCPU *cpu);
+#define    _PR_MD_SET_CURRENT_CPU _MD_SET_CURRENT_CPU
+
+NSPR_API(void) _PR_MD_INIT_RUNNING_CPU(_PRCPU *cpu);
+#define    _PR_MD_INIT_RUNNING_CPU _MD_INIT_RUNNING_CPU
+
+/*
+ * Returns the number of threads awoken or 0 if a timeout occurred;
+ */
+extern PRInt32 _PR_MD_PAUSE_CPU(PRIntervalTime timeout);
+#define    _PR_MD_PAUSE_CPU _MD_PAUSE_CPU
+
+extern void _PR_MD_CLEANUP_BEFORE_EXIT(void);
+#define _PR_MD_CLEANUP_BEFORE_EXIT _MD_CLEANUP_BEFORE_EXIT
+
+extern void _PR_MD_EXIT(PRIntn status);
+#define    _PR_MD_EXIT _MD_EXIT
+
+/* Locks related */
+
+NSPR_API(void) _PR_MD_INIT_LOCKS(void);
+#define    _PR_MD_INIT_LOCKS _MD_INIT_LOCKS
+
+NSPR_API(PRStatus) _PR_MD_NEW_LOCK(_MDLock *md);
+#define    _PR_MD_NEW_LOCK _MD_NEW_LOCK
+
+NSPR_API(void) _PR_MD_FREE_LOCK(_MDLock *md);
+#define    _PR_MD_FREE_LOCK _MD_FREE_LOCK
+
+NSPR_API(void) _PR_MD_LOCK(_MDLock *md);
+#define    _PR_MD_LOCK _MD_LOCK
+
+/* Return 0 on success, a nonzero value on failure. */
+NSPR_API(PRIntn) _PR_MD_TEST_AND_LOCK(_MDLock *md);
+#define    _PR_MD_TEST_AND_LOCK _MD_TEST_AND_LOCK
+
+NSPR_API(void) _PR_MD_UNLOCK(_MDLock *md);
+#define    _PR_MD_UNLOCK _MD_UNLOCK
+
+NSPR_API(void) _PR_MD_IOQ_LOCK(void);
+#define    _PR_MD_IOQ_LOCK _MD_IOQ_LOCK
+
+NSPR_API(void) _PR_MD_IOQ_UNLOCK(void);
+#define    _PR_MD_IOQ_UNLOCK _MD_IOQ_UNLOCK
+
+#ifndef _PR_LOCAL_THREADS_ONLY /* not if only local threads supported */
+/* Semaphore related -- only for native threads */
+#ifdef HAVE_CVAR_BUILT_ON_SEM
+NSPR_API(void) _PR_MD_NEW_SEM(_MDSemaphore *md, PRUintn value);
+#define _PR_MD_NEW_SEM _MD_NEW_SEM
+
+NSPR_API(void) _PR_MD_DESTROY_SEM(_MDSemaphore *md);
+#define _PR_MD_DESTROY_SEM _MD_DESTROY_SEM
+
+NSPR_API(PRStatus) _PR_MD_TIMED_WAIT_SEM(
+    _MDSemaphore *md, PRIntervalTime timeout);
+#define _PR_MD_TIMED_WAIT_SEM _MD_TIMED_WAIT_SEM
+
+NSPR_API(PRStatus) _PR_MD_WAIT_SEM(_MDSemaphore *md);
+#define _PR_MD_WAIT_SEM _MD_WAIT_SEM
+
+NSPR_API(void) _PR_MD_POST_SEM(_MDSemaphore *md);
+#define _PR_MD_POST_SEM _MD_POST_SEM
+#endif /* HAVE_CVAR_BUILT_ON_SEM */
+
+#endif
+
+/* Condition Variables related -- only for native threads */
+
+#ifndef _PR_LOCAL_THREADS_ONLY /* not if only local threads supported */
+NSPR_API(PRInt32) _PR_MD_NEW_CV(_MDCVar *md);
+#define    _PR_MD_NEW_CV _MD_NEW_CV
+
+NSPR_API(void) _PR_MD_FREE_CV(_MDCVar *md);
+#define    _PR_MD_FREE_CV _MD_FREE_CV
+
+NSPR_API(void) _PR_MD_WAIT_CV(
+    _MDCVar *mdCVar,_MDLock *mdLock,PRIntervalTime timeout);
+#define    _PR_MD_WAIT_CV _MD_WAIT_CV
+
+NSPR_API(void) _PR_MD_NOTIFY_CV(_MDCVar *md, _MDLock *lock);
+#define    _PR_MD_NOTIFY_CV _MD_NOTIFY_CV
+
+NSPR_API(void) _PR_MD_NOTIFYALL_CV(_MDCVar *md, _MDLock *lock);
+#define    _PR_MD_NOTIFYALL_CV _MD_NOTIFYALL_CV
+#endif /* _PR_LOCAL_THREADS_ONLY */
+
+/* Threads related */
+NSPR_API(PRThread*) _PR_MD_CURRENT_THREAD(void);
+#define    _PR_MD_CURRENT_THREAD _MD_CURRENT_THREAD
+
+NSPR_API(PRThread*) _PR_MD_GET_ATTACHED_THREAD(void);
+#define    _PR_MD_GET_ATTACHED_THREAD _MD_GET_ATTACHED_THREAD
+
+NSPR_API(PRThread*) _PR_MD_LAST_THREAD(void);
+#define    _PR_MD_LAST_THREAD _MD_LAST_THREAD
+
+NSPR_API(void) _PR_MD_SET_CURRENT_THREAD(PRThread *thread);
+#define    _PR_MD_SET_CURRENT_THREAD _MD_SET_CURRENT_THREAD
+
+NSPR_API(void) _PR_MD_SET_LAST_THREAD(PRThread *thread);
+#define    _PR_MD_SET_LAST_THREAD _MD_SET_LAST_THREAD
+
+extern PRStatus _PR_MD_INIT_THREAD(PRThread *thread);
+#define    _PR_MD_INIT_THREAD _MD_INIT_THREAD
+
+extern void _PR_MD_EXIT_THREAD(PRThread *thread);
+#define    _PR_MD_EXIT_THREAD _MD_EXIT_THREAD
+
+#ifndef _PR_LOCAL_THREADS_ONLY /* not if only local threads supported */
+
+NSPR_API(PRStatus) _PR_MD_INIT_ATTACHED_THREAD(PRThread *thread);
+#define    _PR_MD_INIT_ATTACHED_THREAD _MD_INIT_ATTACHED_THREAD
+
+extern void _PR_MD_SUSPEND_THREAD(PRThread *thread);
+#define    _PR_MD_SUSPEND_THREAD _MD_SUSPEND_THREAD
+
+extern void _PR_MD_RESUME_THREAD(PRThread *thread);
+#define    _PR_MD_RESUME_THREAD _MD_RESUME_THREAD
+
+extern void _PR_MD_SUSPEND_CPU(_PRCPU  *cpu);
+#define    _PR_MD_SUSPEND_CPU _MD_SUSPEND_CPU
+
+extern void _PR_MD_RESUME_CPU(_PRCPU  *cpu);
+#define    _PR_MD_RESUME_CPU _MD_RESUME_CPU
+
+extern void _PR_MD_BEGIN_SUSPEND_ALL(void);
+#define    _PR_MD_BEGIN_SUSPEND_ALL _MD_BEGIN_SUSPEND_ALL
+
+extern void _PR_MD_END_SUSPEND_ALL(void);
+#define    _PR_MD_END_SUSPEND_ALL _MD_END_SUSPEND_ALL
+
+extern void _PR_MD_BEGIN_RESUME_ALL(void);
+#define    _PR_MD_BEGIN_RESUME_ALL _MD_BEGIN_RESUME_ALL
+
+extern void _PR_MD_END_RESUME_ALL(void);
+#define    _PR_MD_END_RESUME_ALL _MD_END_RESUME_ALL
+
+#endif        /* !_PR_LOCAL_THREADS_ONLY */
+
+extern void _PR_MD_CLEAN_THREAD(PRThread *thread);
+#define    _PR_MD_CLEAN_THREAD _MD_CLEAN_THREAD
+
+#ifdef HAVE_CUSTOM_USER_THREADS
+extern void _PR_MD_CREATE_PRIMORDIAL_USER_THREAD(PRThread *);
+#define    _PR_MD_CREATE_PRIMORDIAL_USER_THREAD _MD_CREATE_PRIMORDIAL_USER_THREAD
+
+extern PRThread* _PR_MD_CREATE_USER_THREAD(
+    PRUint32 stacksize,
+    void (*start)(void *),
+    void *arg);
+#define    _PR_MD_CREATE_USER_THREAD _MD_CREATE_USER_THREAD
+#endif
+
+extern PRStatus _PR_MD_CREATE_THREAD(
+    PRThread *thread,
+    void (*start) (void *),
+    PRThreadPriority priority,
+    PRThreadScope scope,
+    PRThreadState state,
+    PRUint32 stackSize);
+#define    _PR_MD_CREATE_THREAD _MD_CREATE_THREAD
+
+extern void _PR_MD_JOIN_THREAD(_MDThread *md);
+#define    _PR_MD_JOIN_THREAD _MD_JOIN_THREAD
+
+extern void _PR_MD_END_THREAD(void);
+#define    _PR_MD_END_THREAD _MD_END_THREAD
+
+extern void _PR_MD_YIELD(void);
+#define    _PR_MD_YIELD _MD_YIELD
+
+extern void _PR_MD_SET_PRIORITY(_MDThread *md, PRThreadPriority newPri);
+#define    _PR_MD_SET_PRIORITY _MD_SET_PRIORITY
+
+extern void _PR_MD_SET_CURRENT_THREAD_NAME(const char *name);
+#define    _PR_MD_SET_CURRENT_THREAD_NAME _MD_SET_CURRENT_THREAD_NAME
+
+NSPR_API(void) _PR_MD_SUSPENDALL(void);
+#define    _PR_MD_SUSPENDALL _MD_SUSPENDALL
+
+NSPR_API(void) _PR_MD_RESUMEALL(void);
+#define    _PR_MD_RESUMEALL _MD_RESUMEALL
+
+extern void _PR_MD_INIT_CONTEXT(
+    PRThread *thread, char *top, void (*start) (void), PRBool *status);
+#define    _PR_MD_INIT_CONTEXT _MD_INIT_CONTEXT
+
+extern void _PR_MD_SWITCH_CONTEXT(PRThread *thread);
+#define    _PR_MD_SWITCH_CONTEXT _MD_SWITCH_CONTEXT
+
+extern void _PR_MD_RESTORE_CONTEXT(PRThread *thread);
+#define    _PR_MD_RESTORE_CONTEXT _MD_RESTORE_CONTEXT
+
+/* Segment related */
+extern void _PR_MD_INIT_SEGS(void);
+#define    _PR_MD_INIT_SEGS _MD_INIT_SEGS
+
+extern PRStatus _PR_MD_ALLOC_SEGMENT(PRSegment *seg, PRUint32 size, void *vaddr);
+#define    _PR_MD_ALLOC_SEGMENT _MD_ALLOC_SEGMENT
+
+extern void _PR_MD_FREE_SEGMENT(PRSegment *seg);
+#define    _PR_MD_FREE_SEGMENT _MD_FREE_SEGMENT
+
+/* Directory enumeration related */
+extern PRStatus _PR_MD_OPEN_DIR(_MDDir *md,const char *name);
+#define    _PR_MD_OPEN_DIR _MD_OPEN_DIR
+
+extern char * _PR_MD_READ_DIR(_MDDir *md, PRIntn flags);
+#define    _PR_MD_READ_DIR _MD_READ_DIR
+
+extern PRInt32 _PR_MD_CLOSE_DIR(_MDDir *md);
+#define    _PR_MD_CLOSE_DIR _MD_CLOSE_DIR
+
+/* Named semaphores related */
+extern PRSem * _PR_MD_OPEN_SEMAPHORE(
+    const char *osname, PRIntn flags, PRIntn mode, PRUintn value);
+#define    _PR_MD_OPEN_SEMAPHORE _MD_OPEN_SEMAPHORE
+
+extern PRStatus _PR_MD_WAIT_SEMAPHORE(PRSem *sem);
+#define    _PR_MD_WAIT_SEMAPHORE _MD_WAIT_SEMAPHORE
+
+extern PRStatus _PR_MD_POST_SEMAPHORE(PRSem *sem);
+#define    _PR_MD_POST_SEMAPHORE _MD_POST_SEMAPHORE
+
+extern PRStatus _PR_MD_CLOSE_SEMAPHORE(PRSem *sem);
+#define    _PR_MD_CLOSE_SEMAPHORE _MD_CLOSE_SEMAPHORE
+
+extern PRStatus _PR_MD_DELETE_SEMAPHORE(const char *osname);
+#define    _PR_MD_DELETE_SEMAPHORE _MD_DELETE_SEMAPHORE
+
+/* I/O related */
+extern void _PR_MD_INIT_FILEDESC(PRFileDesc *fd);
+#define    _PR_MD_INIT_FILEDESC _MD_INIT_FILEDESC
+
+extern void _PR_MD_MAKE_NONBLOCK(PRFileDesc *fd);
+#define    _PR_MD_MAKE_NONBLOCK _MD_MAKE_NONBLOCK
+
+/* File I/O related */
+extern PROsfd _PR_MD_OPEN(const char *name, PRIntn osflags, PRIntn mode);
+#define    _PR_MD_OPEN _MD_OPEN
+
+extern PROsfd _PR_MD_OPEN_FILE(const char *name, PRIntn osflags, PRIntn mode);
+#define    _PR_MD_OPEN_FILE _MD_OPEN_FILE
+
+extern PRInt32 _PR_MD_CLOSE_FILE(PROsfd osfd);
+#define    _PR_MD_CLOSE_FILE _MD_CLOSE_FILE
+
+extern PRInt32 _PR_MD_READ(PRFileDesc *fd, void *buf, PRInt32 amount);
+#define    _PR_MD_READ _MD_READ
+
+extern PRInt32 _PR_MD_WRITE(PRFileDesc *fd, const void *buf, PRInt32 amount);
+#define    _PR_MD_WRITE _MD_WRITE
+
+extern PRInt32 _PR_MD_WRITEV(
+    PRFileDesc *fd, const struct PRIOVec *iov,
+    PRInt32 iov_size, PRIntervalTime timeout);
+#define    _PR_MD_WRITEV _MD_WRITEV
+
+extern PRInt32 _PR_MD_FSYNC(PRFileDesc *fd);
+#define    _PR_MD_FSYNC _MD_FSYNC
+
+extern PRInt32 _PR_MD_DELETE(const char *name);
+#define        _PR_MD_DELETE _MD_DELETE
+
+extern PRInt32 _PR_MD_RENAME(const char *from, const char *to);
+#define _PR_MD_RENAME _MD_RENAME
+
+extern PRInt32 _PR_MD_ACCESS(const char *name, PRAccessHow how);
+#define _PR_MD_ACCESS _MD_ACCESS
+
+extern PRInt32 _PR_MD_STAT(const char *name, struct stat *buf);
+#define _PR_MD_STAT _MD_STAT
+
+extern PRInt32 _PR_MD_MKDIR(const char *name, PRIntn mode);
+#define _PR_MD_MKDIR _MD_MKDIR
+
+extern PRInt32 _PR_MD_MAKE_DIR(const char *name, PRIntn mode);
+#define _PR_MD_MAKE_DIR _MD_MAKE_DIR
+
+extern PRInt32 _PR_MD_RMDIR(const char *name);
+#define _PR_MD_RMDIR _MD_RMDIR
+
+#ifdef MOZ_UNICODE
+/* UTF16 File I/O related */
+extern PRStatus _PR_MD_OPEN_DIR_UTF16(_MDDirUTF16 *md, const PRUnichar *name);
+#define    _PR_MD_OPEN_DIR_UTF16 _MD_OPEN_DIR_UTF16
+
+extern PROsfd _PR_MD_OPEN_FILE_UTF16(const PRUnichar *name, PRIntn osflags, PRIntn mode);
+#define    _PR_MD_OPEN_FILE_UTF16 _MD_OPEN_FILE_UTF16
+
+extern PRUnichar * _PR_MD_READ_DIR_UTF16(_MDDirUTF16 *md, PRIntn flags);
+#define    _PR_MD_READ_DIR_UTF16 _MD_READ_DIR_UTF16
+
+extern PRInt32 _PR_MD_CLOSE_DIR_UTF16(_MDDirUTF16 *md);
+#define    _PR_MD_CLOSE_DIR_UTF16 _MD_CLOSE_DIR_UTF16
+
+extern PRInt32 _PR_MD_GETFILEINFO64_UTF16(const PRUnichar *fn, PRFileInfo64 *info);
+#define _PR_MD_GETFILEINFO64_UTF16 _MD_GETFILEINFO64_UTF16
+#endif /* MOZ_UNICODE */
+
+/* Socket I/O related */
+extern void _PR_MD_INIT_IO(void);
+#define    _PR_MD_INIT_IO _MD_INIT_IO
+
+extern PRInt32 _PR_MD_CLOSE_SOCKET(PROsfd osfd);
+#define    _PR_MD_CLOSE_SOCKET _MD_CLOSE_SOCKET
+
+extern PRInt32 _PR_MD_CONNECT(
+    PRFileDesc *fd, const PRNetAddr *addr,
+    PRUint32 addrlen, PRIntervalTime timeout);
+#define    _PR_MD_CONNECT _MD_CONNECT
+
+extern PROsfd _PR_MD_ACCEPT(
+    PRFileDesc *fd, PRNetAddr *addr,
+    PRUint32 *addrlen, PRIntervalTime timeout);
+#define    _PR_MD_ACCEPT _MD_ACCEPT
+
+extern PRInt32 _PR_MD_BIND(PRFileDesc *fd, const PRNetAddr *addr, PRUint32 addrlen);
+#define    _PR_MD_BIND _MD_BIND
+
+extern PRInt32 _PR_MD_LISTEN(PRFileDesc *fd, PRIntn backlog);
+#define    _PR_MD_LISTEN _MD_LISTEN
+
+extern PRInt32 _PR_MD_SHUTDOWN(PRFileDesc *fd, PRIntn how);
+#define    _PR_MD_SHUTDOWN _MD_SHUTDOWN
+
+extern PRInt32 _PR_MD_RECV(PRFileDesc *fd, void *buf, PRInt32 amount,
+                           PRIntn flags, PRIntervalTime timeout);
+#define    _PR_MD_RECV _MD_RECV
+
+extern PRInt32 _PR_MD_SEND(
+    PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags,
+    PRIntervalTime timeout);
+#define    _PR_MD_SEND _MD_SEND
+
+extern PRInt32 _PR_MD_ACCEPT_READ(PRFileDesc *sd, PROsfd *newSock,
+                                  PRNetAddr **raddr, void *buf, PRInt32 amount,
+                                  PRIntervalTime timeout);
+#define _PR_MD_ACCEPT_READ _MD_ACCEPT_READ
+
+#ifdef WIN32
+extern PROsfd _PR_MD_FAST_ACCEPT(PRFileDesc *fd, PRNetAddr *addr,
+                                 PRUint32 *addrlen, PRIntervalTime timeout,
+                                 PRBool fast,
+                                 _PR_AcceptTimeoutCallback callback,
+                                 void *callbackArg);
+
+extern PRInt32 _PR_MD_FAST_ACCEPT_READ(PRFileDesc *sd, PROsfd *newSock,
+                                       PRNetAddr **raddr, void *buf, PRInt32 amount,
+                                       PRIntervalTime timeout, PRBool fast,
+                                       _PR_AcceptTimeoutCallback callback,
+                                       void *callbackArg);
+
+extern void _PR_MD_UPDATE_ACCEPT_CONTEXT(PROsfd s, PROsfd ls);
+#define _PR_MD_UPDATE_ACCEPT_CONTEXT _MD_UPDATE_ACCEPT_CONTEXT
+/*
+ * The NSPR epoch (00:00:00 1 Jan 1970 UTC) in FILETIME.
+ * We store the value in a PRTime variable for convenience.
+ * This constant is used by _PR_FileTimeToPRTime().
+ * This is defined in ntmisc.c
+ */
+extern const PRTime _pr_filetime_offset;
+#endif /* WIN32 */
+
+extern PRInt32 _PR_MD_SENDFILE(
+    PRFileDesc *sock, PRSendFileData *sfd,
+    PRInt32 flags, PRIntervalTime timeout);
+#define _PR_MD_SENDFILE _MD_SENDFILE
+
+extern PRStatus _PR_MD_GETSOCKNAME(
+    PRFileDesc *fd, PRNetAddr *addr, PRUint32 *addrlen);
+#define    _PR_MD_GETSOCKNAME _MD_GETSOCKNAME
+
+extern PRStatus _PR_MD_GETPEERNAME(
+    PRFileDesc *fd, PRNetAddr *addr, PRUint32 *addrlen);
+#define    _PR_MD_GETPEERNAME _MD_GETPEERNAME
+
+extern PRStatus _PR_MD_GETSOCKOPT(
+    PRFileDesc *fd, PRInt32 level, PRInt32 optname, char* optval, PRInt32* optlen);
+#define    _PR_MD_GETSOCKOPT _MD_GETSOCKOPT
+
+extern PRStatus _PR_MD_SETSOCKOPT(
+    PRFileDesc *fd, PRInt32 level, PRInt32 optname,
+    const char* optval, PRInt32 optlen);
+#define    _PR_MD_SETSOCKOPT _MD_SETSOCKOPT
+
+extern PRStatus PR_CALLBACK _PR_SocketGetSocketOption(
+    PRFileDesc *fd, PRSocketOptionData *data);
+
+extern PRStatus PR_CALLBACK _PR_SocketSetSocketOption(
+    PRFileDesc *fd, const PRSocketOptionData *data);
+
+extern PRInt32 _PR_MD_RECVFROM(
+    PRFileDesc *fd, void *buf, PRInt32 amount, PRIntn flags,
+    PRNetAddr *addr, PRUint32 *addrlen, PRIntervalTime timeout);
+#define    _PR_MD_RECVFROM _MD_RECVFROM
+
+extern PRInt32 _PR_MD_SENDTO(
+    PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags,
+    const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout);
+#define    _PR_MD_SENDTO _MD_SENDTO
+
+#if defined(_WIN64) && defined(WIN95)
+extern PRInt32 _PR_MD_TCPSENDTO(
+    PRFileDesc *fd, const void *buf, PRInt32 amount, PRIntn flags,
+    const PRNetAddr *addr, PRUint32 addrlen, PRIntervalTime timeout);
+#define    _PR_MD_TCPSENDTO _MD_TCPSENDTO
+#endif
+
+extern PRInt32 _PR_MD_SOCKETPAIR(int af, int type, int flags, PROsfd *osfd);
+#define    _PR_MD_SOCKETPAIR _MD_SOCKETPAIR
+
+extern PROsfd _PR_MD_SOCKET(int af, int type, int flags);
+#define    _PR_MD_SOCKET _MD_SOCKET
+
+extern PRInt32 _PR_MD_SOCKETAVAILABLE(PRFileDesc *fd);
+#define    _PR_MD_SOCKETAVAILABLE _MD_SOCKETAVAILABLE
+
+extern PRInt32 _PR_MD_PIPEAVAILABLE(PRFileDesc *fd);
+#define    _PR_MD_PIPEAVAILABLE _MD_PIPEAVAILABLE
+
+extern PRInt32 _PR_MD_PR_POLL(PRPollDesc *pds, PRIntn npds,
+                              PRIntervalTime timeout);
+#define    _PR_MD_PR_POLL _MD_PR_POLL
+
+/*
+ * Initialize fd->secret->inheritable for a newly created fd.
+ * If 'imported' is false, the osfd (i.e., fd->secret->md.osfd)
+ * was created by NSPR and hence has the OS-dependent default
+ * inheritable attribute.  If 'imported' is true, the osfd was
+ * not created by NSPR and hence a system call is required to
+ * query its inheritable attribute.  Since we may never need to
+ * know the inheritable attribute of a fd, a platform may choose
+ * to initialize fd->secret->inheritable of an imported fd to
+ * _PR_TRI_UNKNOWN and only pay the cost of the system call
+ * (in _PR_MD_QUERY_FD_INHERITABLE) when necessary.
+ */
+extern void _PR_MD_INIT_FD_INHERITABLE(PRFileDesc *fd, PRBool imported);
+#define    _PR_MD_INIT_FD_INHERITABLE _MD_INIT_FD_INHERITABLE
+
+extern PRStatus _PR_MD_SET_FD_INHERITABLE(PRFileDesc *fd, PRBool inheritable);
+#define    _PR_MD_SET_FD_INHERITABLE _MD_SET_FD_INHERITABLE
+
+
+#define _PR_PROCESS_TIMEOUT_INTERRUPT_ERRORS(me) \
+        if (_PR_PENDING_INTERRUPT(me)) { \
+                me->flags &= ~_PR_INTERRUPT; \
+                PR_SetError( PR_PENDING_INTERRUPT_ERROR, 0); \
+        } else { \
+                PR_SetError(PR_IO_TIMEOUT_ERROR, 0); \
+        }
+
+extern void *_PR_MD_GET_SP(PRThread *thread);
+#define    _PR_MD_GET_SP _MD_GET_SP
+
+#endif /* defined(_PR_PTHREADS) */
+
+/************************************************************************/
+/*************************************************************************
+** The remainder of the definitions are shared by pthreads and the classic
+** NSPR code. These too may be conditionalized.
+*************************************************************************/
+/************************************************************************/
+
+extern PROffset32 _PR_MD_LSEEK(PRFileDesc *fd, PROffset32 offset, PRSeekWhence whence);
+#define    _PR_MD_LSEEK _MD_LSEEK
+
+extern PROffset64 _PR_MD_LSEEK64(PRFileDesc *fd, PROffset64 offset, PRSeekWhence whence);
+#define    _PR_MD_LSEEK64 _MD_LSEEK64
+
+extern PRInt32 _PR_MD_GETFILEINFO(const char *fn, PRFileInfo *info);
+#define _PR_MD_GETFILEINFO _MD_GETFILEINFO
+
+extern PRInt32 _PR_MD_GETFILEINFO64(const char *fn, PRFileInfo64 *info);
+#define _PR_MD_GETFILEINFO64 _MD_GETFILEINFO64
+
+extern PRInt32 _PR_MD_GETOPENFILEINFO(const PRFileDesc *fd, PRFileInfo *info);
+#define _PR_MD_GETOPENFILEINFO _MD_GETOPENFILEINFO
+
+extern PRInt32 _PR_MD_GETOPENFILEINFO64(const PRFileDesc *fd, PRFileInfo64 *info);
+#define _PR_MD_GETOPENFILEINFO64 _MD_GETOPENFILEINFO64
+
+
+/*****************************************************************************/
+/************************** File descriptor caching **************************/
+/*****************************************************************************/
+extern void _PR_InitFdCache(void);
+extern void _PR_CleanupFdCache(void);
+extern PRFileDesc *_PR_Getfd(void);
+extern void _PR_Putfd(PRFileDesc *fd);
+
+/*
+ * These flags are used by NSPR temporarily in the poll
+ * descriptor's out_flags field to record the mapping of
+ * NSPR's poll flags to the system poll flags.
+ *
+ * If _PR_POLL_READ_SYS_WRITE bit is set, it means the
+ * PR_POLL_READ flag specified by the topmost layer is
+ * mapped to the WRITE flag at the system layer.  Similarly
+ * for the other three _PR_POLL_XXX_SYS_YYY flags.  It is
+ * assumed that the PR_POLL_EXCEPT flag doesn't get mapped
+ * to other flags.
+ */
+#define _PR_POLL_READ_SYS_READ     0x1
+#define _PR_POLL_READ_SYS_WRITE    0x2
+#define _PR_POLL_WRITE_SYS_READ    0x4
+#define _PR_POLL_WRITE_SYS_WRITE   0x8
+
+/*
+** These methods are coerced into file descriptor methods table
+** when the intended service is inappropriate for the particular
+** type of file descriptor.
+*/
+extern PRIntn _PR_InvalidInt(void);
+extern PRInt16 _PR_InvalidInt16(void);
+extern PRInt64 _PR_InvalidInt64(void);
+extern PRStatus _PR_InvalidStatus(void);
+extern PRFileDesc *_PR_InvalidDesc(void);
+
+extern PRIOMethods _pr_faulty_methods;
+
+/*
+** The PR_NETADDR_SIZE macro can only be called on a PRNetAddr union
+** whose 'family' field is set.  It returns the size of the union
+** member corresponding to the specified address family.
+*/
+
+extern PRUintn _PR_NetAddrSize(const PRNetAddr* addr);
+
+#if defined(_PR_INET6)
+
+#define PR_NETADDR_SIZE(_addr) _PR_NetAddrSize(_addr)
+
+#elif defined(_PR_HAVE_MD_SOCKADDR_IN6)
+
+/*
+** Under the following conditions:
+** 1. _PR_INET6 is not defined;
+** 2. _PR_INET6_PROBE is defined;
+** 3. struct sockaddr_in6 has nonstandard fields at the end
+**    (e.g., on Solaris 8),
+** (_addr)->ipv6 is smaller than struct sockaddr_in6, and
+** hence we can't pass sizeof((_addr)->ipv6) to socket
+** functions such as connect because they would fail with
+** EINVAL.
+**
+** To pass the correct socket address length to socket
+** functions, define the macro _PR_HAVE_MD_SOCKADDR_IN6 and
+** define struct _md_sockaddr_in6 to be isomorphic to
+** struct sockaddr_in6.
+*/
+
+#if defined(XP_UNIX) || defined(XP_OS2)
+#define PR_NETADDR_SIZE(_addr)                  \
+        ((_addr)->raw.family == PR_AF_INET      \
+        ? sizeof((_addr)->inet)                 \
+        : ((_addr)->raw.family == PR_AF_INET6   \
+        ? sizeof(struct _md_sockaddr_in6)       \
+        : sizeof((_addr)->local)))
+#else
+#define PR_NETADDR_SIZE(_addr)                  \
+        ((_addr)->raw.family == PR_AF_INET      \
+        ? sizeof((_addr)->inet)                 \
+        : sizeof(struct _md_sockaddr_in6))
+#endif /* defined(XP_UNIX) */
+
+#else
+
+#if defined(XP_UNIX) || defined(XP_OS2)
+#define PR_NETADDR_SIZE(_addr)                  \
+        ((_addr)->raw.family == PR_AF_INET      \
+        ? sizeof((_addr)->inet)                 \
+        : ((_addr)->raw.family == PR_AF_INET6   \
+        ? sizeof((_addr)->ipv6)                 \
+        : sizeof((_addr)->local)))
+#else
+#define PR_NETADDR_SIZE(_addr)                  \
+        ((_addr)->raw.family == PR_AF_INET      \
+        ? sizeof((_addr)->inet)                 \
+        : sizeof((_addr)->ipv6))
+#endif /* defined(XP_UNIX) */
+
+#endif /* defined(_PR_INET6) */
+
+extern PRStatus _PR_MapOptionName(
+    PRSockOption optname, PRInt32 *level, PRInt32 *name);
+extern void _PR_InitThreads(
+    PRThreadType type, PRThreadPriority priority, PRUintn maxPTDs);
+
+struct PRLock {
+#if defined(_PR_PTHREADS)
+    pthread_mutex_t mutex;          /* the underlying lock */
+    _PT_Notified notified;          /* array of conditions notified */
+    PRBool locked;                  /* whether the mutex is locked */
+    pthread_t owner;                /* if locked, current lock owner */
+#elif defined(_PR_BTHREADS)
+    sem_id  semaphoreID;        /* the underlying lock */
+    int32   benaphoreCount;     /* number of people in lock */
+    thread_id   owner;          /* current lock owner */
+#else /* not pthreads or Be threads */
+    PRCList links;                  /* linkage for PRThread.lockList */
+    struct PRThread *owner;         /* current lock owner */
+    PRCList waitQ;                  /* list of threads waiting for lock */
+    PRThreadPriority priority;      /* priority of lock */
+    PRThreadPriority boostPriority; /* boosted priority of lock owner */
+    _MDLock ilock;                  /* Internal Lock to protect user-level fields */
+#endif
+};
+
+struct PRCondVar {
+    PRLock *lock;               /* associated lock that protects the condition */
+#if defined(_PR_PTHREADS)
+    pthread_cond_t cv;          /* underlying pthreads condition */
+    PRInt32 notify_pending;     /* CV has destroy pending notification */
+#elif defined(_PR_BTHREADS)
+    sem_id    sem;              /* the underlying lock */
+    sem_id    handshakeSem;     /* the lock for 'notify'-threads waiting for confirmation */
+    sem_id    signalSem;        /* the lock for threads waiting for someone to notify */
+    volatile int32    nw;       /* the number waiting */
+    volatile int32    ns;       /* the number signalling */
+    long signalBenCount;        /* the number waiting on the underlying sem */
+#else /* not pthreads or Be threads */
+    PRCList condQ;              /* Condition variable wait Q */
+    _MDLock ilock;              /* Internal Lock to protect condQ */
+    _MDCVar md;
+#endif
+};
+
+/************************************************************************/
+
+struct PRMonitor {
+    const char* name;           /* monitor name for debugging */
+#if defined(_PR_PTHREADS)
+    pthread_mutex_t lock;       /* lock is only held when accessing fields
+                                 * of the PRMonitor, instead of being held
+                                 * while the monitor is entered. The only
+                                 * exception is notifyTimes, which is
+                                 * protected by the monitor. */
+    pthread_t owner;            /* the owner of the monitor or invalid */
+    pthread_cond_t entryCV;     /* for threads waiting to enter the monitor */
+
+    pthread_cond_t waitCV;      /* for threads waiting on the monitor */
+    PRInt32 refCount;           /* reference count, an atomic variable.
+                                 * PR_NewMonitor adds a reference to the
+                                 * newly created PRMonitor, and
+                                 * PR_DestroyMonitor releases that reference.
+                                 * PR_ExitMonitor adds a reference before
+                                 * unlocking the internal lock if it needs to
+                                 * signal entryCV, and releases the reference
+                                 * after signaling entryCV. */
+#else  /* defined(_PR_PTHREADS) */
+    PRLock lock;                /* lock is only held when accessing fields
+                                 * of the PRMonitor, instead of being held
+                                 * while the monitor is entered. The only
+                                 * exception is notifyTimes, which is
+                                 * protected by the monitor. */
+    PRThread *owner;            /* the owner of the monitor or invalid */
+    PRCondVar entryCV;          /* for threads waiting to enter the monitor */
+
+    PRCondVar waitCV;           /* for threads waiting on the monitor */
+#endif /* defined(_PR_PTHREADS) */
+    PRUint32 entryCount;        /* # of times re-entered */
+    PRIntn notifyTimes;         /* number of pending notifies for waitCV.
+                                 * The special value -1 means a broadcast
+                                 * (PR_NotifyAll). */
+};
+
+/************************************************************************/
+
+struct PRSemaphore {
+#if defined(_PR_BTHREADS)
+    sem_id  sem;
+    int32   benaphoreCount;
+#else
+    PRCondVar *cvar;        /* associated lock and condition variable queue */
+    PRUintn count;            /* the value of the counting semaphore */
+    PRUint32 waiters;            /* threads waiting on the semaphore */
+#if defined(_PR_PTHREADS)
+#else  /* defined(_PR_PTHREADS) */
+    _MDSemaphore md;
+#endif /* defined(_PR_PTHREADS) */
+#endif /* defined(_PR_BTHREADS) */
+};
+
+/*************************************************************************/
+
+struct PRSem {
+#ifdef _PR_HAVE_POSIX_SEMAPHORES
+    sem_t *sem;
+#elif defined(_PR_HAVE_SYSV_SEMAPHORES)
+    int semid;
+#elif defined(WIN32)
+    HANDLE sem;
+#else
+    PRInt8 notused;
+#endif
+};
+
+/*************************************************************************/
+
+struct PRStackStr {
+    /* head MUST be at offset 0; assembly language code relies on this */
+#if defined(AIX)
+    volatile PRStackElem prstk_head;
+#else
+    PRStackElem prstk_head;
+#endif
+
+    PRLock *prstk_lock;
+    char *prstk_name;
+};
+
+/************************************************************************/
+
+/* XXX this needs to be exported (sigh) */
+struct PRThreadStack {
+    PRCList links;
+    PRUintn flags;
+
+    char *allocBase;            /* base of stack's allocated memory */
+    PRUint32 allocSize;         /* size of stack's allocated memory */
+    char *stackBottom;          /* bottom of stack from C's point of view */
+    char *stackTop;             /* top of stack from C's point of view */
+    PRUint32 stackSize;         /* size of usable portion of the stack */
+
+    PRSegment *seg;
+    PRThread* thr;          /* back pointer to thread owning this stack */
+
+#if defined(_PR_PTHREADS)
+#else /* defined(_PR_PTHREADS) */
+    _MDThreadStack md;
+#endif /* defined(_PR_PTHREADS) */
+};
+
+extern void _PR_DestroyThreadPrivate(PRThread*);
+
+typedef void (PR_CALLBACK *_PRStartFn)(void *);
+
+struct PRThread {
+    PRUint32 state;                 /* thread's creation state */
+    PRThreadPriority priority;      /* apparent priority, loosly defined */
+
+    void *arg;                      /* argument to the client's entry point */
+    _PRStartFn startFunc;           /* the root of the client's thread */
+
+    PRThreadStack *stack;           /* info about thread's stack (for GC) */
+    void *environment;              /* pointer to execution environment */
+
+    PRThreadDumpProc dump;          /* dump thread info out */
+    void *dumpArg;                  /* argument for the dump function */
+
+    /*
+    ** Per thread private data
+    */
+    PRUint32 tpdLength;             /* thread's current vector length */
+    void **privateData;             /* private data vector or NULL */
+    PRErrorCode errorCode;          /* current NSPR error code | zero */
+    PRInt32 osErrorCode;            /* mapping of errorCode | zero */
+    PRIntn  errorStringLength;      /* textLength from last call to PR_SetErrorText() */
+    PRInt32 errorStringSize;        /* malloc()'d size of buffer | zero */
+    char *errorString;              /* current error string | NULL */
+    char *name;                     /* thread's name */
+
+#if defined(_PR_PTHREADS)
+    pthread_t id;                   /* pthread identifier for the thread */
+    PRBool idSet;                   /* whether 'id' has been set. Protected by
+                                     * pt_book.ml. */
+#ifdef _PR_NICE_PRIORITY_SCHEDULING
+    pid_t tid;                      /* Linux-specific kernel thread ID */
+#endif
+    PRBool okToDelete;              /* ok to delete the PRThread struct? */
+    PRCondVar *waiting;             /* where the thread is waiting | NULL */
+    void *sp;                       /* recorded sp for garbage collection */
+    PRThread *next, *prev;          /* simple linked list of all threads */
+    PRUint32 suspend;               /* used to store suspend and resume flags */
+#ifdef PT_NO_SIGTIMEDWAIT
+    pthread_mutex_t suspendResumeMutex;
+    pthread_cond_t suspendResumeCV;
+#endif
+    PRUint32 interrupt_blocked;     /* interrupt blocked */
+    struct pollfd *syspoll_list;    /* Unix polling list used by PR_Poll */
+    PRUint32 syspoll_count;         /* number of elements in syspoll_list */
+#if defined(_PR_POLL_WITH_SELECT)
+    int *selectfd_list;             /* Unix fd's that PR_Poll selects on */
+    PRUint32 selectfd_count;        /* number of elements in selectfd_list */
+#endif
+#elif defined(_PR_BTHREADS)
+    PRUint32 flags;
+    _MDThread md;
+    PRBool io_pending;
+    PRInt32 io_fd;
+    PRBool io_suspended;
+#else /* not pthreads or Be threads */
+    _MDLock threadLock;             /* Lock to protect thread state variables.
+                                     * Protects the following fields:
+                                     *     state
+                                     *     priority
+                                     *     links
+                                     *     wait
+                                     *     cpu
+                                     */
+    PRUint32 queueCount;
+    PRUint32 waitCount;
+
+    PRCList active;                 /* on list of all active threads        */
+    PRCList links;
+    PRCList waitQLinks;             /* when thread is PR_Wait'ing */
+    PRCList lockList;               /* list of locks currently holding */
+    PRIntervalTime sleep;           /* sleep time when thread is sleeping */
+    struct _wait {
+        struct PRLock *lock;
+        struct PRCondVar *cvar;
+    } wait;
+
+    PRUint32 id;
+    PRUint32 flags;
+    PRUint32 no_sched;              /* Don't schedule the thread to run.
+                                     * This flag has relevance only when
+                                     * multiple NSPR CPUs are created.
+                                     * When a thread is de-scheduled, there
+                                     * is a narrow window of time in which
+                                     * the thread is put on the run queue
+                                     * but the scheduler is actually using
+                                     * the stack of this thread.  It is safe
+                                     * to run this thread on a different CPU
+                                     * only when its stack is not in use on
+                                     * any other CPU.  The no_sched flag is
+                                     * set during this interval to prevent
+                                     * the thread from being scheduled on a
+                                     * different CPU.
+                                     */
+
+    /* thread termination condition variable for join */
+    PRCondVar *term;
+
+    _PRCPU *cpu;                    /* cpu to which this thread is bound    */
+    PRUint32 threadAllocatedOnStack;/* boolean */
+
+    /* When an async IO is in progress and a second async IO cannot be
+     * initiated, the io_pending flag is set to true.  Some platforms will
+     * not use the io_pending flag.  If the io_pending flag is true, then
+     * io_fd is the OS-file descriptor on which IO is pending.
+     */
+    PRBool io_pending;
+    PRInt32 io_fd;
+
+    /* If a timeout occurs or if an outstanding IO is interrupted and the
+     * OS doesn't support a real cancellation (NT or MAC), then the
+     * io_suspended flag will be set to true.  The thread will be resumed
+     * but may run into trouble issuing additional IOs until the io_pending
+     * flag can be cleared
+     */
+    PRBool io_suspended;
+
+    _MDThread md;
+#endif
+};
+
+struct PRProcessAttr {
+    PRFileDesc *stdinFd;
+    PRFileDesc *stdoutFd;
+    PRFileDesc *stderrFd;
+    char *currentDirectory;
+    char *fdInheritBuffer;
+    PRSize fdInheritBufferSize;
+    PRSize fdInheritBufferUsed;
+};
+
+struct PRProcess {
+    _MDProcess md;
+};
+
+struct PRFileMap {
+    PRFileDesc *fd;
+    PRFileMapProtect prot;
+    _MDFileMap md;
+};
+
+/************************************************************************/
+
+/*
+** File descriptors of the NSPR layer can be in one of the
+** following states (stored in the 'state' field of struct
+** PRFilePrivate):
+** - _PR_FILEDESC_OPEN: The OS fd is open.
+** - _PR_FILEDESC_CLOSED: The OS fd is closed.  The PRFileDesc
+**   is still open but is unusable.  The only operation allowed
+**   on the PRFileDesc is PR_Close().
+** - _PR_FILEDESC_FREED: The OS fd is closed and the PRFileDesc
+**   structure is freed.
+*/
+
+#define _PR_FILEDESC_OPEN       0xaaaaaaaa    /* 1010101... */
+#define _PR_FILEDESC_CLOSED     0x55555555    /* 0101010... */
+#define _PR_FILEDESC_FREED      0x11111111
+
+/*
+** A boolean type with an additional "unknown" state
+*/
+
+typedef enum {
+    _PR_TRI_TRUE = 1,
+    _PR_TRI_FALSE = 0,
+    _PR_TRI_UNKNOWN = -1
+} _PRTriStateBool;
+
+struct PRFilePrivate {
+    PRInt32 state;
+    PRBool nonblocking;
+    _PRTriStateBool inheritable;
+    PRFileDesc *next;
+    PRIntn lockCount;   /*   0: not locked
+                         *  -1: a native lockfile call is in progress
+                         * > 0: # times the file is locked */
+#ifdef _PR_HAVE_PEEK_BUFFER
+    char *peekBuffer;
+    PRInt32 peekBufSize;
+    PRInt32 peekBytes;
+#endif
+#if !defined(_PR_HAVE_O_APPEND)
+    PRBool  appendMode; /* Some platforms don't have O_APPEND or its
+                         * equivalent, so they have to seek to end of
+                         * file on write if the file was opened in
+                         * append mode.  See Bugzilla 4090, 276330. */
+#endif
+    _MDFileDesc md;
+#ifdef _PR_NEED_SECRET_AF
+    PRUint16 af;        /* If the platform's implementation of accept()
+                         * requires knowing the address family of the
+             * socket, we save the address family here. */
+#endif
+
+#if defined(_WIN64)
+    /* This is necessary for TCP Fast Open. TCP Fast Open in windows must
+     * use ConnectEx function which uses OVERLAPPED. TCPSendTo will call
+     * ConnectEx to send fast open data. If ConnectEx returns
+     * ERROR_IO_PENDING we need to save OVERLAPPED structure and we will
+     * use it in ConnectContinue to get the final result of ConnectEx.
+     */
+    PRBool alreadyConnected;
+    PRBool overlappedActive;
+    OVERLAPPED ol;
+#endif
+};
+
+#ifdef _WIN64
+#define PR_PRIdOSFD "lld"       /* for printing PROsfd */
+#define PR_PRIxOSFD "llx"
+#define PR_SCNdOSFD "lld"       /* for scanning PROsfd */
+#define PR_SCNxOSFD "llx"
+#else
+#define PR_PRIdOSFD "ld"        /* for printing PROsfd */
+#define PR_PRIxOSFD "lx"
+#define PR_SCNdOSFD "ld"        /* for scanning PROsfd */
+#define PR_SCNxOSFD "lx"
+#endif
+
+struct PRDir {
+    PRDirEntry d;
+    _MDDir md;
+};
+
+#ifdef MOZ_UNICODE
+struct PRDirUTF16 {
+    PRDirEntry d;
+    _MDDirUTF16 md;
+};
+#endif /* MOZ_UNICODE */
+
+extern void _PR_InitLocks(void);
+extern void _PR_InitSegs(void);
+extern void _PR_InitStacks(void);
+extern void _PR_InitTPD(void);
+extern void _PR_InitMem(void);
+extern void _PR_InitEnv(void);
+extern void _PR_InitCMon(void);
+extern void _PR_InitIO(void);
+extern void _PR_InitLog(void);
+extern void _PR_InitNet(void);
+extern void _PR_InitClock(void);
+extern void _PR_InitLinker(void);
+extern void _PR_InitAtomic(void);
+extern void _PR_InitCPUs(void);
+extern void _PR_InitDtoa(void);
+extern void _PR_InitTime(void);
+extern void _PR_InitMW(void);
+extern void _PR_InitRWLocks(void);
+extern void _PR_CleanupThread(PRThread *thread);
+extern void _PR_CleanupCallOnce(void);
+extern void _PR_CleanupMW(void);
+extern void _PR_CleanupTime(void);
+extern void _PR_CleanupDtoa(void);
+extern void _PR_ShutdownLinker(void);
+extern void _PR_CleanupEnv(void);
+extern void _PR_CleanupIO(void);
+extern void _PR_CleanupCMon(void);
+extern void _PR_CleanupNet(void);
+extern void _PR_CleanupLayerCache(void);
+extern void _PR_CleanupStacks(void);
+#ifdef WINNT
+extern void _PR_CleanupCPUs(void);
+#endif
+extern void _PR_CleanupThreads(void);
+extern void _PR_CleanupTPD(void);
+extern void _PR_Cleanup(void);
+extern void _PR_LogCleanup(void);
+extern void _PR_InitLayerCache(void);
+
+extern PRBool _pr_initialized;
+extern void _PR_ImplicitInitialization(void);
+extern PRBool _PR_Obsolete(const char *obsolete, const char *preferred);
+
+/************************************************************************/
+
+struct PRSegment {
+    void *vaddr;
+    PRUint32 size;
+    PRUintn flags;
+#if defined(_PR_PTHREADS)
+#else  /* defined(_PR_PTHREADS) */
+    _MDSegment md;
+#endif /* defined(_PR_PTHREADS) */
+};
+
+/* PRSegment.flags */
+#define _PR_SEG_VM    0x1
+
+/************************************************************************/
+
+extern PRInt32 _pr_pageSize;
+extern PRInt32 _pr_pageShift;
+
+extern PRLogModuleInfo *_pr_clock_lm;
+extern PRLogModuleInfo *_pr_cmon_lm;
+extern PRLogModuleInfo *_pr_io_lm;
+extern PRLogModuleInfo *_pr_cvar_lm;
+extern PRLogModuleInfo *_pr_mon_lm;
+extern PRLogModuleInfo *_pr_linker_lm;
+extern PRLogModuleInfo *_pr_sched_lm;
+extern PRLogModuleInfo *_pr_thread_lm;
+extern PRLogModuleInfo *_pr_gc_lm;
+
+extern PRFileDesc *_pr_stdin;
+extern PRFileDesc *_pr_stdout;
+extern PRFileDesc *_pr_stderr;
+
+/* Zone allocator */
+/*
+** The zone allocator code has hardcoded pthread types and
+** functions, so it can only be used in the pthreads version.
+** This can be fixed by replacing the hardcoded pthread types
+** and functions with macros that expand to the native thread
+** types and functions on each platform.
+*/
+#if defined(_PR_PTHREADS)
+#define _PR_ZONE_ALLOCATOR
+#endif
+
+#ifdef _PR_ZONE_ALLOCATOR
+extern void _PR_InitZones(void);
+extern void _PR_DestroyZones(void);
+#endif
+
+/* Overriding malloc, free, etc. */
+#if !defined(_PR_NO_PREEMPT) && defined(XP_UNIX) \
+        && !defined(_PR_PTHREADS) && !defined(_PR_GLOBAL_THREADS_ONLY) \
+        && !defined(PURIFY) \
+        && !defined(DARWIN) \
+        && !defined(QNX) \
+        && !(defined (UNIXWARE) && defined (USE_SVR4_THREADS))
+#define _PR_OVERRIDE_MALLOC
+#endif
+
+/*************************************************************************
+* External machine-dependent code provided by each OS.                     *                                                                     *
+*************************************************************************/
+
+/* Initialization related */
+extern void _PR_MD_EARLY_INIT(void);
+#define    _PR_MD_EARLY_INIT _MD_EARLY_INIT
+
+extern void _PR_MD_INTERVAL_INIT(void);
+#define    _PR_MD_INTERVAL_INIT _MD_INTERVAL_INIT
+
+NSPR_API(void) _PR_MD_FINAL_INIT(void);
+#define    _PR_MD_FINAL_INIT _MD_FINAL_INIT
+
+extern void _PR_MD_EARLY_CLEANUP(void);
+#define    _PR_MD_EARLY_CLEANUP _MD_EARLY_CLEANUP
+
+/* Process control */
+
+extern PRProcess * _PR_MD_CREATE_PROCESS(
+    const char *path,
+    char *const *argv,
+    char *const *envp,
+    const PRProcessAttr *attr);
+#define    _PR_MD_CREATE_PROCESS _MD_CREATE_PROCESS
+
+extern PRStatus _PR_MD_DETACH_PROCESS(PRProcess *process);
+#define    _PR_MD_DETACH_PROCESS _MD_DETACH_PROCESS
+
+extern PRStatus _PR_MD_WAIT_PROCESS(PRProcess *process, PRInt32 *exitCode);
+#define    _PR_MD_WAIT_PROCESS _MD_WAIT_PROCESS
+
+extern PRStatus _PR_MD_KILL_PROCESS(PRProcess *process);
+#define    _PR_MD_KILL_PROCESS _MD_KILL_PROCESS
+
+/* Current Time */
+NSPR_API(PRTime) _PR_MD_NOW(void);
+#define    _PR_MD_NOW _MD_NOW
+
+/* Environment related */
+extern char* _PR_MD_GET_ENV(const char *name);
+#define    _PR_MD_GET_ENV _MD_GET_ENV
+
+extern PRIntn _PR_MD_PUT_ENV(const char *name);
+#define    _PR_MD_PUT_ENV _MD_PUT_ENV
+
+/* Atomic operations */
+
+extern void _PR_MD_INIT_ATOMIC(void);
+#define    _PR_MD_INIT_ATOMIC _MD_INIT_ATOMIC
+
+extern PRInt32 _PR_MD_ATOMIC_INCREMENT(PRInt32 *);
+#define    _PR_MD_ATOMIC_INCREMENT _MD_ATOMIC_INCREMENT
+
+extern PRInt32 _PR_MD_ATOMIC_ADD(PRInt32 *, PRInt32);
+#define    _PR_MD_ATOMIC_ADD _MD_ATOMIC_ADD
+
+extern PRInt32 _PR_MD_ATOMIC_DECREMENT(PRInt32 *);
+#define    _PR_MD_ATOMIC_DECREMENT _MD_ATOMIC_DECREMENT
+
+extern PRInt32 _PR_MD_ATOMIC_SET(PRInt32 *, PRInt32);
+#define    _PR_MD_ATOMIC_SET _MD_ATOMIC_SET
+
+/* Garbage collection */
+
+/*
+** Save the registers that the GC would find interesting into the thread
+** "t". isCurrent will be non-zero if the thread state that is being
+** saved is the currently executing thread. Return the address of the
+** first register to be scanned as well as the number of registers to
+** scan in "np".
+**
+** If "isCurrent" is non-zero then it is allowed for the thread context
+** area to be used as scratch storage to hold just the registers
+** necessary for scanning.
+*/
+extern PRWord *_MD_HomeGCRegisters(PRThread *t, int isCurrent, int *np);
+
+/* Time intervals */
+
+extern PRIntervalTime _PR_MD_GET_INTERVAL(void);
+#define _PR_MD_GET_INTERVAL _MD_GET_INTERVAL
+
+extern PRIntervalTime _PR_MD_INTERVAL_PER_SEC(void);
+#define _PR_MD_INTERVAL_PER_SEC _MD_INTERVAL_PER_SEC
+
+/* Affinity masks */
+
+extern PRInt32 _PR_MD_SETTHREADAFFINITYMASK(PRThread *thread, PRUint32 mask );
+#define _PR_MD_SETTHREADAFFINITYMASK _MD_SETTHREADAFFINITYMASK
+
+extern PRInt32 _PR_MD_GETTHREADAFFINITYMASK(PRThread *thread, PRUint32 *mask);
+#define _PR_MD_GETTHREADAFFINITYMASK _MD_GETTHREADAFFINITYMASK
+
+/* File locking */
+
+extern PRStatus _PR_MD_LOCKFILE(PROsfd osfd);
+#define    _PR_MD_LOCKFILE _MD_LOCKFILE
+
+extern PRStatus _PR_MD_TLOCKFILE(PROsfd osfd);
+#define    _PR_MD_TLOCKFILE _MD_TLOCKFILE
+
+extern PRStatus _PR_MD_UNLOCKFILE(PROsfd osfd);
+#define    _PR_MD_UNLOCKFILE _MD_UNLOCKFILE
+
+/* Memory-mapped files */
+
+extern PRStatus _PR_MD_CREATE_FILE_MAP(PRFileMap *fmap, PRInt64 size);
+#define _PR_MD_CREATE_FILE_MAP _MD_CREATE_FILE_MAP
+
+extern PRInt32 _PR_MD_GET_MEM_MAP_ALIGNMENT(void);
+#define _PR_MD_GET_MEM_MAP_ALIGNMENT _MD_GET_MEM_MAP_ALIGNMENT
+
+extern void * _PR_MD_MEM_MAP(
+    PRFileMap *fmap,
+    PROffset64 offset,
+    PRUint32 len);
+#define _PR_MD_MEM_MAP _MD_MEM_MAP
+
+extern PRStatus _PR_MD_MEM_UNMAP(void *addr, PRUint32 size);
+#define _PR_MD_MEM_UNMAP _MD_MEM_UNMAP
+
+extern PRStatus _PR_MD_CLOSE_FILE_MAP(PRFileMap *fmap);
+#define _PR_MD_CLOSE_FILE_MAP _MD_CLOSE_FILE_MAP
+
+extern PRStatus _PR_MD_SYNC_MEM_MAP(
+    PRFileDesc *fd,
+    void *addr,
+    PRUint32 len);
+#define _PR_MD_SYNC_MEM_MAP _MD_SYNC_MEM_MAP
+
+/* Named Shared Memory */
+
+/*
+** Declare PRSharedMemory.
+*/
+struct PRSharedMemory
+{
+    char        *ipcname; /* after conversion to native */
+    PRSize      size;  /* from open */
+    PRIntn      mode;  /* from open */
+    PRIntn      flags; /* from open */
+#if defined(PR_HAVE_POSIX_NAMED_SHARED_MEMORY)
+    int         id;
+#elif defined(PR_HAVE_SYSV_NAMED_SHARED_MEMORY)
+    int         id;
+#elif defined(PR_HAVE_WIN32_NAMED_SHARED_MEMORY)
+    HANDLE      handle;
+#else
+    PRUint32    nothing; /* placeholder, nothing behind here */
+#endif
+    PRUint32    ident; /* guard word at end of struct */
+#define _PR_SHM_IDENT 0xdeadbad
+};
+
+extern PRSharedMemory * _MD_OpenSharedMemory(
+    const char *name,
+    PRSize      size,
+    PRIntn      flags,
+    PRIntn      mode
+);
+#define _PR_MD_OPEN_SHARED_MEMORY _MD_OpenSharedMemory
+
+extern void * _MD_AttachSharedMemory( PRSharedMemory *shm, PRIntn flags );
+#define _PR_MD_ATTACH_SHARED_MEMORY _MD_AttachSharedMemory
+
+extern PRStatus _MD_DetachSharedMemory( PRSharedMemory *shm, void *addr );
+#define _PR_MD_DETACH_SHARED_MEMORY _MD_DetachSharedMemory
+
+extern PRStatus _MD_CloseSharedMemory( PRSharedMemory *shm );
+#define _PR_MD_CLOSE_SHARED_MEMORY _MD_CloseSharedMemory
+
+extern PRStatus _MD_DeleteSharedMemory( const char *name );
+#define _PR_MD_DELETE_SHARED_MEMORY  _MD_DeleteSharedMemory
+
+extern PRFileMap* _md_OpenAnonFileMap(
+    const char *dirName,
+    PRSize      size,
+    PRFileMapProtect prot
+);
+#define _PR_MD_OPEN_ANON_FILE_MAP _md_OpenAnonFileMap
+
+extern PRStatus _md_ExportFileMapAsString(
+    PRFileMap *fm,
+    PRSize    bufSize,
+    char      *buf
+);
+#define _PR_MD_EXPORT_FILE_MAP_AS_STRING _md_ExportFileMapAsString
+
+extern PRFileMap * _md_ImportFileMapFromString(
+    const char *fmstring
+);
+#define _PR_MD_IMPORT_FILE_MAP_FROM_STRING _md_ImportFileMapFromString
+
+
+
+/* Interprocess communications (IPC) */
+
+/*
+ * The maximum length of an NSPR IPC name, including the
+ * terminating null byte.
+ */
+#define PR_IPC_NAME_SIZE 1024
+
+/*
+ * Types of NSPR IPC objects
+ */
+typedef enum {
+    _PRIPCSem,  /* semaphores */
+    _PRIPCShm   /* shared memory segments */
+} _PRIPCType;
+
+/*
+ * Make a native IPC name from an NSPR IPC name.
+ */
+extern PRStatus _PR_MakeNativeIPCName(
+    const char *name,  /* NSPR IPC name */
+    char *result,      /* result buffer */
+    PRIntn size,       /* size of result buffer */
+    _PRIPCType type    /* type of IPC object */
+);
+
+/* Socket call error code */
+
+NSPR_API(PRInt32) _PR_MD_GET_SOCKET_ERROR(void);
+#define    _PR_MD_GET_SOCKET_ERROR _MD_GET_SOCKET_ERROR
+
+/* Get name of current host */
+extern PRStatus _PR_MD_GETHOSTNAME(char *name, PRUint32 namelen);
+#define    _PR_MD_GETHOSTNAME _MD_GETHOSTNAME
+
+extern PRStatus _PR_MD_GETSYSINFO(PRSysInfo cmd, char *name, PRUint32 namelen);
+#define    _PR_MD_GETSYSINFO _MD_GETSYSINFO
+
+/* File descriptor inheritance */
+
+/*
+ * If fd->secret->inheritable is _PR_TRI_UNKNOWN and we need to
+ * know the inheritable attribute of the fd, call this function
+ * to find that out.  This typically requires a system call.
+ */
+extern void _PR_MD_QUERY_FD_INHERITABLE(PRFileDesc *fd);
+#define    _PR_MD_QUERY_FD_INHERITABLE _MD_QUERY_FD_INHERITABLE
+
+/* --- PR_GetRandomNoise() related things --- */
+
+extern PRSize _PR_MD_GetRandomNoise( void *buf, PRSize size );
+#define _PR_MD_GET_RANDOM_NOISE(buf,size) _PR_MD_GetRandomNoise((buf),(size))
+extern PRSize _pr_CopyLowBits( void *dest, PRSize dstlen, void *src, PRSize srclen );
+
+/* end PR_GetRandomNoise() related */
+
+#if defined(_WIN64) && defined(WIN95)
+typedef struct _PRFileDescList {
+    PRFileDesc *fd;
+    struct _PRFileDescList *next;
+} PRFileDescList;
+
+extern PRLock *_fd_waiting_for_overlapped_done_lock;
+extern PRFileDescList *_fd_waiting_for_overlapped_done;
+extern void CheckOverlappedPendingSocketsAreDone();
+#endif
+
+
+PR_END_EXTERN_C
+
+#endif /* primpl_h___ */
diff --git a/nsprpub/pr/include/private/prpriv.h b/nsprpub/pr/include/private/prpriv.h
new file mode 100644
index 0000000000..f45eee4752
--- /dev/null
+++ b/nsprpub/pr/include/private/prpriv.h
@@ -0,0 +1,16 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prpriv_h___
+#define prpriv_h___
+
+/*
+ * NSPR 2.0 Private API
+ */
+
+#include "private/pprio.h"
+#include "private/pprthred.h"
+
+#endif /* prpriv_h___ */
diff --git a/nsprpub/pr/include/prlink.h b/nsprpub/pr/include/prlink.h
new file mode 100644
index 0000000000..0e38effaf7
--- /dev/null
+++ b/nsprpub/pr/include/prlink.h
@@ -0,0 +1,230 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prlink_h___
+#define prlink_h___
+
+/*
+** API to static and dynamic linking.
+*/
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+typedef struct PRLibrary PRLibrary;
+
+typedef struct PRStaticLinkTable {
+    const char *name;
+    void (*fp)(void);
+} PRStaticLinkTable;
+
+/*
+** Change the default library path to the given string. The string is
+** copied. This call will fail if it runs out of memory.
+**
+** The string provided as 'path' is copied. The caller can do whatever is
+** convenient with the argument when the function is complete.
+*/
+NSPR_API(PRStatus) PR_SetLibraryPath(const char *path);
+
+/*
+** Return a character string which contains the path used to search for
+** dynamically loadable libraries.
+**
+** The returned value is basically a copy of a PR_SetLibraryPath().
+** The storage is allocated by the runtime and becomes the responsibilty
+** of the caller.
+*/
+NSPR_API(char*) PR_GetLibraryPath(void);
+
+/*
+** Given a directory name "dir" and a library name "lib" construct a full
+** path name that will refer to the actual dynamically loaded
+** library. This does not test for existance of said file, it just
+** constructs the full filename. The name constructed is system dependent
+** and prepared for PR_LoadLibrary. The result must be free'd when the
+** caller is done with it.
+**
+** The storage for the result is allocated by the runtime and becomes the
+** responsibility of the caller.
+*/
+NSPR_API(char*) PR_GetLibraryName(const char *dir, const char *lib);
+
+/*
+**
+** Free the memory allocated, for the caller, by PR_GetLibraryName
+*/
+NSPR_API(void) PR_FreeLibraryName(char *mem);
+
+/*
+** Given a library "name" try to load the library. The argument "name"
+** is a machine-dependent name for the library, such as the full pathname
+** returned by PR_GetLibraryName.  If the library is already loaded,
+** this function will avoid loading the library twice.
+**
+** If the library is loaded successfully, then a pointer to the PRLibrary
+** structure representing the library is returned.  Otherwise, NULL is
+** returned.
+**
+** This increments the reference count of the library.
+*/
+NSPR_API(PRLibrary*) PR_LoadLibrary(const char *name);
+
+/*
+** Each operating system has its preferred way of specifying
+** a file in the file system.  Most operating systems use
+** a pathname.  Mac OS Classic, on the other hand, uses the FSSpec
+** structure to specify a file. PRLibSpec allows NSPR clients
+** to use the type of file specification that is most efficient
+** for a particular platform.
+**
+** On some operating systems such as Mac OS Classic, a shared library
+** may contain code fragments that can be individually loaded.
+** PRLibSpec also allows NSPR clients to identify a code fragment
+** in a library, if code fragments are supported by the OS.
+** A code fragment can be specified by name or by an integer index.
+**
+** Right now PRLibSpec supports four types of library specification:
+** a pathname in the native character encoding, a Mac code fragment
+** by name, a Mac code fragment by index, and a UTF-16 pathname.
+*/
+
+typedef enum PRLibSpecType {
+    PR_LibSpec_Pathname,
+    PR_LibSpec_MacNamedFragment,   /* obsolete (for Mac OS Classic) */
+    PR_LibSpec_MacIndexedFragment, /* obsolete (for Mac OS Classic) */
+    PR_LibSpec_PathnameU           /* supported only on Win32 */
+} PRLibSpecType;
+
+struct FSSpec; /* Mac OS Classic FSSpec */
+
+typedef struct PRLibSpec {
+    PRLibSpecType type;
+    union {
+        /* if type is PR_LibSpec_Pathname */
+        const char *pathname;
+
+        /* if type is PR_LibSpec_MacNamedFragment */
+        struct {
+            const struct FSSpec *fsspec;
+            const char *name;
+        } mac_named_fragment;      /* obsolete (for Mac OS Classic) */
+
+        /* if type is PR_LibSpec_MacIndexedFragment */
+        struct {
+            const struct FSSpec *fsspec;
+            PRUint32 index;
+        } mac_indexed_fragment;    /* obsolete (for Mac OS Classic) */
+
+        /* if type is PR_LibSpec_PathnameU */
+        const PRUnichar *pathname_u; /* supported only on Win32 */
+    } value;
+} PRLibSpec;
+
+/*
+** The following bit flags may be or'd together and passed
+** as the 'flags' argument to PR_LoadLibraryWithFlags.
+** Flags not supported by the underlying OS are ignored.
+*/
+
+#define PR_LD_LAZY   0x1  /* equivalent to RTLD_LAZY on Unix */
+#define PR_LD_NOW    0x2  /* equivalent to RTLD_NOW on Unix */
+#define PR_LD_GLOBAL 0x4  /* equivalent to RTLD_GLOBAL on Unix */
+#define PR_LD_LOCAL  0x8  /* equivalent to RTLD_LOCAL on Unix */
+/* The following is equivalent to LOAD_WITH_ALTERED_SEARCH_PATH on Windows */
+#define PR_LD_ALT_SEARCH_PATH  0x10
+/*                0x8000     reserved for NSPR internal use */
+
+/*
+** Load the specified library, in the manner specified by 'flags'.
+*/
+
+NSPR_API(PRLibrary *)
+PR_LoadLibraryWithFlags(
+    PRLibSpec libSpec,    /* the shared library */
+    PRIntn flags          /* flags that affect the loading */
+);
+
+/*
+** Unload a previously loaded library. If the library was a static
+** library then the static link table will no longer be referenced. The
+** associated PRLibrary object is freed.
+**
+** PR_FAILURE is returned if the library cannot be unloaded.
+**
+** This function decrements the reference count of the library.
+*/
+NSPR_API(PRStatus) PR_UnloadLibrary(PRLibrary *lib);
+
+/*
+** Given the name of a procedure, return the address of the function that
+** implements the procedure, or NULL if no such function can be
+** found. This does not find symbols in the main program (the ".exe");
+** use PR_LoadStaticLibrary to register symbols in the main program.
+**
+** This function does not modify the reference count of the library.
+*/
+NSPR_API(void*) PR_FindSymbol(PRLibrary *lib, const char *name);
+
+/*
+** Similar to PR_FindSymbol, except that the return value is a pointer to
+** a function, and not a pointer to void. Casting between a data pointer
+** and a function pointer is not portable according to the C standard.
+** Any function pointer can be cast to any other function pointer.
+**
+** This function does not modify the reference count of the library.
+*/
+typedef void (*PRFuncPtr)(void);
+NSPR_API(PRFuncPtr) PR_FindFunctionSymbol(PRLibrary *lib, const char *name);
+
+/*
+** Finds a symbol in one of the currently loaded libraries. Given the
+** name of a procedure, return the address of the function that
+** implements the procedure, and return the library that contains that
+** symbol, or NULL if no such function can be found. This does not find
+** symbols in the main program (the ".exe"); use PR_AddStaticLibrary to
+** register symbols in the main program.
+**
+** This increments the reference count of the library.
+*/
+NSPR_API(void*) PR_FindSymbolAndLibrary(const char *name,
+                                        PRLibrary* *lib);
+
+/*
+** Similar to PR_FindSymbolAndLibrary, except that the return value is
+** a pointer to a function, and not a pointer to void. Casting between a
+** data pointer and a function pointer is not portable according to the C
+** standard. Any function pointer can be cast to any other function pointer.
+**
+** This increments the reference count of the library.
+*/
+NSPR_API(PRFuncPtr) PR_FindFunctionSymbolAndLibrary(const char *name,
+        PRLibrary* *lib);
+
+/*
+** Register a static link table with the runtime under the name
+** "name". The symbols present in the static link table will be made
+** available to PR_FindSymbol. If "name" is null then the symbols will be
+** made available to the library which represents the executable. The
+** tables are not copied.
+**
+** Returns the library object if successful, null otherwise.
+**
+** This increments the reference count of the library.
+*/
+NSPR_API(PRLibrary*) PR_LoadStaticLibrary(
+    const char *name, const PRStaticLinkTable *table);
+
+/*
+** Return the pathname of the file that the library "name" was loaded
+** from. "addr" is the address of a function defined in the library.
+**
+** The caller is responsible for freeing the result with PR_Free.
+*/
+NSPR_API(char *) PR_GetLibraryFilePathname(const char *name, PRFuncPtr addr);
+
+PR_END_EXTERN_C
+
+#endif /* prlink_h___ */
diff --git a/nsprpub/pr/include/prlock.h b/nsprpub/pr/include/prlock.h
new file mode 100644
index 0000000000..9b7fdaa184
--- /dev/null
+++ b/nsprpub/pr/include/prlock.h
@@ -0,0 +1,109 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** File:        prlock.h
+** Description: API to basic locking functions of NSPR.
+**
+**
+** NSPR provides basic locking mechanisms for thread synchronization.  Locks
+** are lightweight resource contention controls that prevent multiple threads
+** from accessing something (code/data) simultaneously.
+**/
+
+#ifndef prlock_h___
+#define prlock_h___
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+/**********************************************************************/
+/************************* TYPES AND CONSTANTS ************************/
+/**********************************************************************/
+
+/*
+ * PRLock --
+ *
+ *     NSPR represents the lock as an opaque entity to the client of the
+ *     API.  All routines operate on a pointer to this opaque entity.
+ */
+
+typedef struct PRLock PRLock;
+
+/**********************************************************************/
+/****************************** FUNCTIONS *****************************/
+/**********************************************************************/
+
+/***********************************************************************
+** FUNCTION:    PR_NewLock
+** DESCRIPTION:
+**  Returns a pointer to a newly created opaque lock object.
+** INPUTS:      void
+** OUTPUTS:     void
+** RETURN:      PRLock*
+**   If the lock can not be created because of resource constraints, NULL
+**   is returned.
+**
+***********************************************************************/
+NSPR_API(PRLock*) PR_NewLock(void);
+
+/***********************************************************************
+** FUNCTION:    PR_DestroyLock
+** DESCRIPTION:
+**  Destroys a given opaque lock object.
+** INPUTS:      PRLock *lock
+**              Lock to be freed.
+** OUTPUTS:     void
+** RETURN:      None
+***********************************************************************/
+NSPR_API(void) PR_DestroyLock(PRLock *lock);
+
+/***********************************************************************
+** FUNCTION:    PR_Lock
+** DESCRIPTION:
+**  Lock a lock.
+** INPUTS:      PRLock *lock
+**              Lock to locked.
+** OUTPUTS:     void
+** RETURN:      None
+***********************************************************************/
+NSPR_API(void) PR_Lock(PRLock *lock);
+
+/***********************************************************************
+** FUNCTION:    PR_Unlock
+** DESCRIPTION:
+**  Unlock a lock.  Unlocking an unlocked lock has undefined results.
+** INPUTS:      PRLock *lock
+**              Lock to unlocked.
+** OUTPUTS:     void
+** RETURN:      PR_STATUS
+**              Returns PR_FAILURE if the caller does not own the lock.
+***********************************************************************/
+NSPR_API(PRStatus) PR_Unlock(PRLock *lock);
+
+/***********************************************************************
+** MACRO:    PR_ASSERT_CURRENT_THREAD_OWNS_LOCK
+** DESCRIPTION:
+**  If the current thread owns |lock|, this assertion is guaranteed to
+**  succeed.  Otherwise, the behavior of this function is undefined.
+** INPUTS:      PRLock *lock
+**              Lock to assert ownership of.
+** OUTPUTS:     void
+** RETURN:      None
+***********************************************************************/
+#if defined(DEBUG) || defined(FORCE_PR_ASSERT)
+#define PR_ASSERT_CURRENT_THREAD_OWNS_LOCK(/* PrLock* */ lock) \
+    PR_AssertCurrentThreadOwnsLock(lock)
+#else
+#define PR_ASSERT_CURRENT_THREAD_OWNS_LOCK(/* PrLock* */ lock)
+#endif
+
+/* Don't call this function directly. */
+NSPR_API(void) PR_AssertCurrentThreadOwnsLock(PRLock *lock);
+
+PR_END_EXTERN_C
+
+#endif /* prlock_h___ */
diff --git a/nsprpub/pr/include/prlog.h b/nsprpub/pr/include/prlog.h
new file mode 100644
index 0000000000..1922c255d8
--- /dev/null
+++ b/nsprpub/pr/include/prlog.h
@@ -0,0 +1,226 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prlog_h___
+#define prlog_h___
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+/*
+** prlog.h -- Declare interfaces to NSPR's Logging service
+**
+** NSPR provides a logging service that is used by NSPR itself and is
+** available to client programs.
+**
+** To use the service from a client program, you should create a
+** PRLogModuleInfo structure by calling PR_NewLogModule(). After
+** creating the LogModule, you can write to the log using the PR_LOG()
+** macro.
+**
+** Initialization of the log service is handled by NSPR initialization.
+**
+** At execution time, you must enable the log service. To enable the
+** log service, set the environment variable: NSPR_LOG_MODULES
+** variable.
+**
+** NSPR_LOG_MODULES variable has the form:
+**
+**     <moduleName>:<value>[, <moduleName>:<value>]*
+**
+** Where:
+**  <moduleName> is the name passed to PR_NewLogModule().
+**  <value> is a numeric constant, e.g. 5. This value is the maximum
+** value of a log event, enumerated by PRLogModuleLevel, that you want
+** written to the log.
+**
+** For example: to record all events of greater value than or equal to
+** PR_LOG_ERROR for a LogModule names "gizmo", say:
+**
+** set NSPR_LOG_MODULES=gizmo:2
+**
+** Note that you must specify the numeric value of PR_LOG_ERROR.
+**
+** Special LogModule names are provided for controlling NSPR's log
+** service at execution time. These controls should be set in the
+** NSPR_LOG_MODULES environment variable at execution time to affect
+** NSPR's log service for your application.
+**
+** The special LogModule "all" enables all LogModules. To enable all
+** LogModule calls to PR_LOG(), say:
+**
+** set NSPR_LOG_MODULES=all:5
+**
+** The special LogModule name "sync" tells the NSPR log service to do
+** unbuffered logging.
+**
+** The special LogModule name "bufsize:<size>" tells NSPR to set the
+** log buffer to <size>.
+**
+** The environment variable NSPR_LOG_FILE specifies the log file to use
+** unless the default of "stderr" is acceptable. For MS Windows
+** systems, NSPR_LOG_FILE can be set to a special value: "WinDebug"
+** (case sensitive). This value causes PR_LOG() output to be written
+** using the Windows API OutputDebugString(). OutputDebugString()
+** writes to the debugger window; some people find this helpful.
+**
+**
+** To put log messages in your programs, use the PR_LOG macro:
+**
+**     PR_LOG(<module>, <level>, (<printfString>, <args>*));
+**
+** Where <module> is the address of a PRLogModuleInfo structure, and
+** <level> is one of the levels defined by the enumeration:
+** PRLogModuleLevel. <args> is a printf() style of argument list. That
+** is: (fmtstring, ...).
+**
+** Example:
+**
+** main() {
+**    PRIntn one = 1;
+**    PRLogModuleInfo * myLm = PR_NewLogModule("gizmo");
+**    PR_LOG( myLm, PR_LOG_ALWAYS, ("Log this! %d\n", one));
+**    return;
+** }
+**
+** Note the use of printf() style arguments as the third agrument(s) to
+** PR_LOG().
+**
+** After compiling and linking you application, set the environment:
+**
+** set NSPR_LOG_MODULES=gizmo:5
+** set NSPR_LOG_FILE=logfile.txt
+**
+** When you execute your application, the string "Log this! 1" will be
+** written to the file "logfile.txt".
+**
+** Note to NSPR engineers: a number of PRLogModuleInfo structures are
+** defined and initialized in prinit.c. See this module for ideas on
+** what to log where.
+**
+*/
+
+typedef enum PRLogModuleLevel {
+    PR_LOG_NONE = 0,                /* nothing */
+    PR_LOG_ALWAYS = 1,              /* always printed */
+    PR_LOG_ERROR = 2,               /* error messages */
+    PR_LOG_WARNING = 3,             /* warning messages */
+    PR_LOG_DEBUG = 4,               /* debug messages */
+
+    PR_LOG_NOTICE = PR_LOG_DEBUG,   /* notice messages */
+    PR_LOG_WARN = PR_LOG_WARNING,   /* warning messages */
+    PR_LOG_MIN = PR_LOG_DEBUG,      /* minimal debugging messages */
+    PR_LOG_MAX = PR_LOG_DEBUG       /* maximal debugging messages */
+} PRLogModuleLevel;
+
+/*
+** One of these structures is created for each module that uses logging.
+**    "name" is the name of the module
+**    "level" is the debugging level selected for that module
+*/
+typedef struct PRLogModuleInfo {
+    const char *name;
+    PRLogModuleLevel level;
+    struct PRLogModuleInfo *next;
+} PRLogModuleInfo;
+
+/*
+** Create a new log module.
+*/
+NSPR_API(PRLogModuleInfo*) PR_NewLogModule(const char *name);
+
+/*
+** Set the file to use for logging. Returns PR_FALSE if the file cannot
+** be created
+*/
+NSPR_API(PRBool) PR_SetLogFile(const char *name);
+
+/*
+** Set the size of the logging buffer. If "buffer_size" is zero then the
+** logging becomes "synchronous" (or unbuffered).
+*/
+NSPR_API(void) PR_SetLogBuffering(PRIntn buffer_size);
+
+/*
+** Print a string to the log. "fmt" is a PR_snprintf format type. All
+** messages printed to the log are preceeded by the name of the thread
+** and a time stamp. Also, the routine provides a missing newline if one
+** is not provided.
+*/
+NSPR_API(void) PR_LogPrint(const char *fmt, ...);
+
+/*
+** Flush the log to its file.
+*/
+NSPR_API(void) PR_LogFlush(void);
+
+NSPR_API(void) PR_Assert(const char *s, const char *file, PRIntn ln)
+PR_PRETEND_NORETURN;
+
+#if defined(DEBUG) || defined(FORCE_PR_LOG)
+#define PR_LOGGING 1
+
+#define PR_LOG_TEST(_module,_level) \
+    ((_module)->level >= (_level))
+
+/*
+** Log something.
+**    "module" is the address of a PRLogModuleInfo structure
+**    "level" is the desired logging level
+**    "args" is a variable length list of arguments to print, in the following
+**       format:  ("printf style format string", ...)
+*/
+#define PR_LOG(_module,_level,_args)     \
+    PR_BEGIN_MACRO             \
+      if (PR_LOG_TEST(_module,_level)) { \
+      PR_LogPrint _args;         \
+      }                     \
+    PR_END_MACRO
+
+#else /* defined(DEBUG) || defined(FORCE_PR_LOG) */
+
+#undef PR_LOGGING
+#define PR_LOG_TEST(module,level) 0
+#define PR_LOG(module,level,args)
+
+#endif /* defined(DEBUG) || defined(FORCE_PR_LOG) */
+
+#ifndef NO_NSPR_10_SUPPORT
+
+#ifdef PR_LOGGING
+#define PR_LOG_BEGIN    PR_LOG
+#define PR_LOG_END      PR_LOG
+#define PR_LOG_DEFINE   PR_NewLogModule
+#else
+#define PR_LOG_BEGIN(module,level,args)
+#define PR_LOG_END(module,level,args)
+#define PR_LOG_DEFINE(_name)    NULL
+#endif /* PR_LOGGING */
+
+#endif /* NO_NSPR_10_SUPPORT */
+
+#if defined(DEBUG) || defined(FORCE_PR_ASSERT)
+
+#define PR_ASSERT(_expr) \
+    ((_expr)?((void)0):PR_Assert(# _expr,__FILE__,__LINE__))
+
+#define PR_ASSERT_ARG(_expr) PR_ASSERT(_expr)
+
+#define PR_NOT_REACHED(_reasonStr) \
+    PR_Assert(_reasonStr,__FILE__,__LINE__)
+
+#else
+
+#define PR_ASSERT(expr) ((void) 0)
+/* PR_ASSERT_ARG avoids compiler warning: unused variable */
+#define PR_ASSERT_ARG(expr) ((void)(0 && (expr)))
+#define PR_NOT_REACHED(reasonStr)
+
+#endif /* defined(DEBUG) || defined(FORCE_PR_ASSERT) */
+
+PR_END_EXTERN_C
+
+#endif /* prlog_h___ */
diff --git a/nsprpub/pr/include/prlong.h b/nsprpub/pr/include/prlong.h
new file mode 100644
index 0000000000..7cc1d567d1
--- /dev/null
+++ b/nsprpub/pr/include/prlong.h
@@ -0,0 +1,403 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** File:                prlong.h
+** Description: Portable access to 64 bit numerics
+**
+** Long-long (64-bit signed integer type) support. Some C compilers
+** don't support 64 bit integers yet, so we use these macros to
+** support both machines that do and don't.
+**/
+#ifndef prlong_h___
+#define prlong_h___
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+/***********************************************************************
+** DEFINES:     LL_MaxInt
+**              LL_MinInt
+**              LL_Zero
+**              LL_MaxUint
+** DESCRIPTION:
+**      Various interesting constants and static variable
+**      initializer
+***********************************************************************/
+NSPR_API(PRInt64) LL_MaxInt(void);
+NSPR_API(PRInt64) LL_MinInt(void);
+NSPR_API(PRInt64) LL_Zero(void);
+NSPR_API(PRUint64) LL_MaxUint(void);
+
+#if defined(HAVE_LONG_LONG)
+
+/* Keep this in sync with prtypes.h. */
+#if PR_BYTES_PER_LONG == 8 && !defined(PR_ALTERNATE_INT64_TYPEDEF)
+#define LL_MAXINT   9223372036854775807L
+#define LL_MININT   (-LL_MAXINT - 1L)
+#define LL_ZERO     0L
+#define LL_MAXUINT  18446744073709551615UL
+#define LL_INIT(hi, lo)  ((hi ## L << 32) + lo ## L)
+#elif defined(WIN32) && !defined(__GNUC__)
+#define LL_MAXINT   9223372036854775807i64
+#define LL_MININT   (-LL_MAXINT - 1i64)
+#define LL_ZERO     0i64
+#define LL_MAXUINT  18446744073709551615ui64
+#define LL_INIT(hi, lo)  ((hi ## i64 << 32) + lo ## i64)
+#else
+#define LL_MAXINT   9223372036854775807LL
+#define LL_MININT   (-LL_MAXINT - 1LL)
+#define LL_ZERO     0LL
+#define LL_MAXUINT  18446744073709551615ULL
+#define LL_INIT(hi, lo)  ((hi ## LL << 32) + lo ## LL)
+#endif
+
+/***********************************************************************
+** MACROS:      LL_*
+** DESCRIPTION:
+**      The following macros define portable access to the 64 bit
+**      math facilities.
+**
+***********************************************************************/
+
+/***********************************************************************
+** MACROS:      LL_<relational operators>
+**
+**  LL_IS_ZERO        Test for zero
+**  LL_EQ             Test for equality
+**  LL_NE             Test for inequality
+**  LL_GE_ZERO        Test for zero or positive
+**  LL_CMP            Compare two values
+***********************************************************************/
+#define LL_IS_ZERO(a)       ((a) == 0)
+#define LL_EQ(a, b)         ((a) == (b))
+#define LL_NE(a, b)         ((a) != (b))
+#define LL_GE_ZERO(a)       ((a) >= 0)
+#define LL_CMP(a, op, b)    ((PRInt64)(a) op (PRInt64)(b))
+#define LL_UCMP(a, op, b)   ((PRUint64)(a) op (PRUint64)(b))
+
+/***********************************************************************
+** MACROS:      LL_<logical operators>
+**
+**  LL_AND            Logical and
+**  LL_OR             Logical or
+**  LL_XOR            Logical exclusion
+**  LL_OR2            A disgusting deviation
+**  LL_NOT            Negation (one's complement)
+***********************************************************************/
+#define LL_AND(r, a, b)        ((r) = (a) & (b))
+#define LL_OR(r, a, b)        ((r) = (a) | (b))
+#define LL_XOR(r, a, b)        ((r) = (a) ^ (b))
+#define LL_OR2(r, a)        ((r) = (r) | (a))
+#define LL_NOT(r, a)        ((r) = ~(a))
+
+/***********************************************************************
+** MACROS:      LL_<mathematical operators>
+**
+**  LL_NEG            Negation (two's complement)
+**  LL_ADD            Summation (two's complement)
+**  LL_SUB            Difference (two's complement)
+***********************************************************************/
+#define LL_NEG(r, a)        ((r) = -(a))
+#define LL_ADD(r, a, b)     ((r) = (a) + (b))
+#define LL_SUB(r, a, b)     ((r) = (a) - (b))
+
+/***********************************************************************
+** MACROS:      LL_<mathematical operators>
+**
+**  LL_MUL            Product (two's complement)
+**  LL_DIV            Quotient (two's complement)
+**  LL_MOD            Modulus (two's complement)
+***********************************************************************/
+#define LL_MUL(r, a, b)        ((r) = (a) * (b))
+#define LL_DIV(r, a, b)        ((r) = (a) / (b))
+#define LL_MOD(r, a, b)        ((r) = (a) % (b))
+
+/***********************************************************************
+** MACROS:      LL_<shifting operators>
+**
+**  LL_SHL            Shift left [0..64] bits
+**  LL_SHR            Shift right [0..64] bits with sign extension
+**  LL_USHR           Unsigned shift right [0..64] bits
+**  LL_ISHL           Signed shift left [0..64] bits
+***********************************************************************/
+#define LL_SHL(r, a, b)     ((r) = (PRInt64)(a) << (b))
+#define LL_SHR(r, a, b)     ((r) = (PRInt64)(a) >> (b))
+#define LL_USHR(r, a, b)    ((r) = (PRUint64)(a) >> (b))
+#define LL_ISHL(r, a, b)    ((r) = (PRInt64)(a) << (b))
+
+/***********************************************************************
+** MACROS:      LL_<conversion operators>
+**
+**  LL_L2I            Convert to signed 32 bit
+**  LL_L2UI           Convert to unsigned 32 bit
+**  LL_L2F            Convert to floating point
+**  LL_L2D            Convert to floating point
+**  LL_I2L            Convert signed to 64 bit
+**  LL_UI2L           Convert unsigned to 64 bit
+**  LL_F2L            Convert float to 64 bit
+**  LL_D2L            Convert float to 64 bit
+***********************************************************************/
+#define LL_L2I(i, l)        ((i) = (PRInt32)(l))
+#define LL_L2UI(ui, l)        ((ui) = (PRUint32)(l))
+#define LL_L2F(f, l)        ((f) = (PRFloat64)(l))
+#define LL_L2D(d, l)        ((d) = (PRFloat64)(l))
+
+#define LL_I2L(l, i)        ((l) = (PRInt64)(i))
+#define LL_UI2L(l, ui)        ((l) = (PRInt64)(ui))
+#define LL_F2L(l, f)        ((l) = (PRInt64)(f))
+#define LL_D2L(l, d)        ((l) = (PRInt64)(d))
+
+/***********************************************************************
+** MACROS:      LL_UDIVMOD
+** DESCRIPTION:
+**  Produce both a quotient and a remainder given an unsigned
+** INPUTS:      PRUint64 a: The dividend of the operation
+**              PRUint64 b: The quotient of the operation
+** OUTPUTS:     PRUint64 *qp: pointer to quotient
+**              PRUint64 *rp: pointer to remainder
+***********************************************************************/
+#define LL_UDIVMOD(qp, rp, a, b) \
+    (*(qp) = ((PRUint64)(a) / (b)), \
+     *(rp) = ((PRUint64)(a) % (b)))
+
+#else  /* !HAVE_LONG_LONG */
+
+#define LL_MAXINT   LL_MaxInt()
+#define LL_MININT   LL_MinInt()
+#define LL_ZERO     LL_Zero()
+#define LL_MAXUINT  LL_MaxUint()
+
+#ifdef IS_LITTLE_ENDIAN
+#define LL_INIT(hi, lo) {PR_UINT32(lo), PR_UINT32(hi)}
+#else
+#define LL_INIT(hi, lo) {PR_UINT32(hi), PR_UINT32(lo)}
+#endif
+
+#define LL_IS_ZERO(a)        (((a).hi == 0) && ((a).lo == 0))
+#define LL_EQ(a, b)        (((a).hi == (b).hi) && ((a).lo == (b).lo))
+#define LL_NE(a, b)        (((a).hi != (b).hi) || ((a).lo != (b).lo))
+#define LL_GE_ZERO(a)        (((a).hi >> 31) == 0)
+
+#define LL_CMP(a, op, b)    (((a).hi == (b).hi) ? ((a).lo op (b).lo) : \
+                 ((PRInt32)(a).hi op (PRInt32)(b).hi))
+#define LL_UCMP(a, op, b)    (((a).hi == (b).hi) ? ((a).lo op (b).lo) : \
+                 ((a).hi op (b).hi))
+
+#define LL_AND(r, a, b)        ((r).lo = (a).lo & (b).lo, \
+                 (r).hi = (a).hi & (b).hi)
+#define LL_OR(r, a, b)        ((r).lo = (a).lo | (b).lo, \
+                 (r).hi = (a).hi | (b).hi)
+#define LL_XOR(r, a, b)        ((r).lo = (a).lo ^ (b).lo, \
+                 (r).hi = (a).hi ^ (b).hi)
+#define LL_OR2(r, a)        ((r).lo = (r).lo | (a).lo, \
+                 (r).hi = (r).hi | (a).hi)
+#define LL_NOT(r, a)        ((r).lo = ~(a).lo, \
+                 (r).hi = ~(a).hi)
+
+#define LL_NEG(r, a)        ((r).lo = -(PRInt32)(a).lo, \
+                 (r).hi = -(PRInt32)(a).hi - ((r).lo != 0))
+#define LL_ADD(r, a, b) { \
+    PRInt64 _a, _b; \
+    _a = a; _b = b; \
+    (r).lo = _a.lo + _b.lo; \
+    (r).hi = _a.hi + _b.hi + ((r).lo < _b.lo); \
+}
+
+#define LL_SUB(r, a, b) { \
+    PRInt64 _a, _b; \
+    _a = a; _b = b; \
+    (r).lo = _a.lo - _b.lo; \
+    (r).hi = _a.hi - _b.hi - (_a.lo < _b.lo); \
+}
+
+#define LL_MUL(r, a, b) { \
+    PRInt64 _a, _b; \
+    _a = a; _b = b; \
+    LL_MUL32(r, _a.lo, _b.lo); \
+    (r).hi += _a.hi * _b.lo + _a.lo * _b.hi; \
+}
+
+#define _lo16(a)        ((a) & PR_BITMASK(16))
+#define _hi16(a)        ((a) >> 16)
+
+#define LL_MUL32(r, a, b) { \
+     PRUint32 _a1, _a0, _b1, _b0, _y0, _y1, _y2, _y3; \
+     _a1 = _hi16(a), _a0 = _lo16(a); \
+     _b1 = _hi16(b), _b0 = _lo16(b); \
+     _y0 = _a0 * _b0; \
+     _y1 = _a0 * _b1; \
+     _y2 = _a1 * _b0; \
+     _y3 = _a1 * _b1; \
+     _y1 += _hi16(_y0);                         /* can't carry */ \
+     _y1 += _y2;                                /* might carry */ \
+     if (_y1 < _y2)    \
+        _y3 += (PRUint32)(PR_BIT(16));  /* propagate */ \
+     (r).lo = (_lo16(_y1) << 16) + _lo16(_y0); \
+     (r).hi = _y3 + _hi16(_y1); \
+}
+
+#define LL_UDIVMOD(qp, rp, a, b)    ll_udivmod(qp, rp, a, b)
+
+NSPR_API(void) ll_udivmod(PRUint64 *qp, PRUint64 *rp, PRUint64 a, PRUint64 b);
+
+#define LL_DIV(r, a, b) { \
+    PRInt64 _a, _b; \
+    PRUint32 _negative = (PRInt32)(a).hi < 0; \
+    if (_negative) { \
+    LL_NEG(_a, a); \
+    } else { \
+    _a = a; \
+    } \
+    if ((PRInt32)(b).hi < 0) { \
+    _negative ^= 1; \
+    LL_NEG(_b, b); \
+    } else { \
+    _b = b; \
+    } \
+    LL_UDIVMOD(&(r), 0, _a, _b); \
+    if (_negative) \
+    LL_NEG(r, r); \
+}
+
+#define LL_MOD(r, a, b) { \
+    PRInt64 _a, _b; \
+    PRUint32 _negative = (PRInt32)(a).hi < 0; \
+    if (_negative) { \
+    LL_NEG(_a, a); \
+    } else { \
+    _a = a; \
+    } \
+    if ((PRInt32)(b).hi < 0) { \
+    LL_NEG(_b, b); \
+    } else { \
+    _b = b; \
+    } \
+    LL_UDIVMOD(0, &(r), _a, _b); \
+    if (_negative) \
+    LL_NEG(r, r); \
+}
+
+#define LL_SHL(r, a, b) { \
+    if (b) { \
+    PRInt64 _a; \
+        _a = a; \
+        if ((b) < 32) { \
+        (r).lo = _a.lo << ((b) & 31); \
+        (r).hi = (_a.hi << ((b) & 31)) | (_a.lo >> (32 - (b))); \
+    } else { \
+        (r).lo = 0; \
+        (r).hi = _a.lo << ((b) & 31); \
+    } \
+    } else { \
+    (r) = (a); \
+    } \
+}
+
+/* a is an PRInt32, b is PRInt32, r is PRInt64 */
+#define LL_ISHL(r, a, b) { \
+    if (b) { \
+    PRInt64 _a; \
+    _a.lo = (a); \
+    _a.hi = 0; \
+        if ((b) < 32) { \
+        (r).lo = (a) << ((b) & 31); \
+        (r).hi = ((a) >> (32 - (b))); \
+    } else { \
+        (r).lo = 0; \
+        (r).hi = (a) << ((b) & 31); \
+    } \
+    } else { \
+    (r).lo = (a); \
+    (r).hi = 0; \
+    } \
+}
+
+#define LL_SHR(r, a, b) { \
+    if (b) { \
+    PRInt64 _a; \
+        _a = a; \
+    if ((b) < 32) { \
+        (r).lo = (_a.hi << (32 - (b))) | (_a.lo >> ((b) & 31)); \
+        (r).hi = (PRInt32)_a.hi >> ((b) & 31); \
+    } else { \
+        (r).lo = (PRInt32)_a.hi >> ((b) & 31); \
+        (r).hi = (PRInt32)_a.hi >> 31; \
+    } \
+    } else { \
+    (r) = (a); \
+    } \
+}
+
+#define LL_USHR(r, a, b) { \
+    if (b) { \
+    PRInt64 _a; \
+        _a = a; \
+    if ((b) < 32) { \
+        (r).lo = (_a.hi << (32 - (b))) | (_a.lo >> ((b) & 31)); \
+        (r).hi = _a.hi >> ((b) & 31); \
+    } else { \
+        (r).lo = _a.hi >> ((b) & 31); \
+        (r).hi = 0; \
+    } \
+    } else { \
+    (r) = (a); \
+    } \
+}
+
+#define LL_L2I(i, l)        ((i) = (l).lo)
+#define LL_L2UI(ui, l)        ((ui) = (l).lo)
+#define LL_L2F(f, l)        { double _d; LL_L2D(_d, l); (f) = (PRFloat64)_d; }
+
+#define LL_L2D(d, l) { \
+    int _negative; \
+    PRInt64 _absval; \
+ \
+    _negative = (l).hi >> 31; \
+    if (_negative) { \
+    LL_NEG(_absval, l); \
+    } else { \
+    _absval = l; \
+    } \
+    (d) = (double)_absval.hi * 4.294967296e9 + _absval.lo; \
+    if (_negative) \
+    (d) = -(d); \
+}
+
+#define LL_I2L(l, i)        { PRInt32 _i = ((PRInt32)(i)) >> 31; (l).lo = (i); (l).hi = _i; }
+#define LL_UI2L(l, ui)      ((l).lo = (ui), (l).hi = 0)
+#define LL_F2L(l, f)        { double _d = (double)f; LL_D2L(l, _d); }
+
+#define LL_D2L(l, d) { \
+    int _negative; \
+    double _absval, _d_hi; \
+    PRInt64 _lo_d; \
+ \
+    _negative = ((d) < 0); \
+    _absval = _negative ? -(d) : (d); \
+ \
+    (l).hi = _absval / 4.294967296e9; \
+    (l).lo = 0; \
+    LL_L2D(_d_hi, l); \
+    _absval -= _d_hi; \
+    _lo_d.hi = 0; \
+    if (_absval < 0) { \
+    _lo_d.lo = -_absval; \
+    LL_SUB(l, l, _lo_d); \
+    } else { \
+    _lo_d.lo = _absval; \
+    LL_ADD(l, l, _lo_d); \
+    } \
+ \
+    if (_negative) \
+    LL_NEG(l, l); \
+}
+
+#endif /* !HAVE_LONG_LONG */
+
+PR_END_EXTERN_C
+
+#endif /* prlong_h___ */
diff --git a/nsprpub/pr/include/prmem.h b/nsprpub/pr/include/prmem.h
new file mode 100644
index 0000000000..ed9a428933
--- /dev/null
+++ b/nsprpub/pr/include/prmem.h
@@ -0,0 +1,126 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** File: prmem.h
+** Description: API to NSPR memory management functions
+**
+*/
+#ifndef prmem_h___
+#define prmem_h___
+
+#include "prtypes.h"
+#include <stdlib.h>
+
+PR_BEGIN_EXTERN_C
+
+/*
+** Thread safe memory allocation.
+**
+** NOTE: pr wraps up malloc, free, calloc, realloc so they are already
+** thread safe (and are not declared here - look in stdlib.h).
+*/
+
+/*
+** PR_Malloc, PR_Calloc, PR_Realloc, and PR_Free have the same signatures
+** as their libc equivalent malloc, calloc, realloc, and free, and have
+** the same semantics.  (Note that the argument type size_t is replaced
+** by PRUint32.)  Memory allocated by PR_Malloc, PR_Calloc, or PR_Realloc
+** must be freed by PR_Free.
+*/
+
+NSPR_API(void *) PR_Malloc(PRUint32 size);
+
+NSPR_API(void *) PR_Calloc(PRUint32 nelem, PRUint32 elsize);
+
+NSPR_API(void *) PR_Realloc(void *ptr, PRUint32 size);
+
+NSPR_API(void) PR_Free(void *ptr);
+
+/*
+** The following are some convenience macros defined in terms of
+** PR_Malloc, PR_Calloc, PR_Realloc, and PR_Free.
+*/
+
+/***********************************************************************
+** FUNCTION:    PR_MALLOC()
+** DESCRIPTION:
+**   PR_NEW() allocates an untyped item of size _size from the heap.
+** INPUTS:  _size: size in bytes of item to be allocated
+** OUTPUTS: untyped pointer to the node allocated
+** RETURN:  pointer to node or error returned from malloc().
+***********************************************************************/
+#define PR_MALLOC(_bytes) (PR_Malloc((_bytes)))
+
+/***********************************************************************
+** FUNCTION:    PR_NEW()
+** DESCRIPTION:
+**   PR_NEW() allocates an item of type _struct from the heap.
+** INPUTS:  _struct: a data type
+** OUTPUTS: pointer to _struct
+** RETURN:  pointer to _struct or error returns from malloc().
+***********************************************************************/
+#define PR_NEW(_struct) ((_struct *) PR_MALLOC(sizeof(_struct)))
+
+/***********************************************************************
+** FUNCTION:    PR_REALLOC()
+** DESCRIPTION:
+**   PR_REALLOC() re-allocates _ptr bytes from the heap as a _size
+**   untyped item.
+** INPUTS:  _ptr: pointer to node to reallocate
+**          _size: size of node to allocate
+** OUTPUTS: pointer to node allocated
+** RETURN:  pointer to node allocated
+***********************************************************************/
+#define PR_REALLOC(_ptr, _size) (PR_Realloc((_ptr), (_size)))
+
+/***********************************************************************
+** FUNCTION:    PR_CALLOC()
+** DESCRIPTION:
+**   PR_CALLOC() allocates a _size bytes untyped item from the heap
+**   and sets the allocated memory to all 0x00.
+** INPUTS:  _size: size of node to allocate
+** OUTPUTS: pointer to node allocated
+** RETURN:  pointer to node allocated
+***********************************************************************/
+#define PR_CALLOC(_size) (PR_Calloc(1, (_size)))
+
+/***********************************************************************
+** FUNCTION:    PR_NEWZAP()
+** DESCRIPTION:
+**   PR_NEWZAP() allocates an item of type _struct from the heap
+**   and sets the allocated memory to all 0x00.
+** INPUTS:  _struct: a data type
+** OUTPUTS: pointer to _struct
+** RETURN:  pointer to _struct
+***********************************************************************/
+#define PR_NEWZAP(_struct) ((_struct*)PR_Calloc(1, sizeof(_struct)))
+
+/***********************************************************************
+** FUNCTION:    PR_DELETE()
+** DESCRIPTION:
+**   PR_DELETE() unallocates an object previosly allocated via PR_NEW()
+**   or PR_NEWZAP() to the heap.
+** INPUTS:  pointer to previously allocated object
+** OUTPUTS: the referenced object is returned to the heap
+** RETURN:  void
+***********************************************************************/
+#define PR_DELETE(_ptr) { PR_Free(_ptr); (_ptr) = NULL; }
+
+/***********************************************************************
+** FUNCTION:    PR_FREEIF()
+** DESCRIPTION:
+**   PR_FREEIF() conditionally unallocates an object previously allocated
+**   vial PR_NEW() or PR_NEWZAP(). If the pointer to the object is
+**   equal to zero (0), the object is not released.
+** INPUTS:  pointer to previously allocated object
+** OUTPUTS: the referenced object is conditionally returned to the heap
+** RETURN:  void
+***********************************************************************/
+#define PR_FREEIF(_ptr) if (_ptr) PR_DELETE(_ptr)
+
+PR_END_EXTERN_C
+
+#endif /* prmem_h___ */
diff --git a/nsprpub/pr/include/prmon.h b/nsprpub/pr/include/prmon.h
new file mode 100644
index 0000000000..374e298265
--- /dev/null
+++ b/nsprpub/pr/include/prmon.h
@@ -0,0 +1,96 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prmon_h___
+#define prmon_h___
+
+#include "prtypes.h"
+#include "prinrval.h"
+
+PR_BEGIN_EXTERN_C
+
+typedef struct PRMonitor PRMonitor;
+
+/*
+** Create a new monitor. Monitors are re-entrant locks with a single built-in
+** condition variable.
+**
+** This may fail if memory is tight or if some operating system resource
+** is low.
+*/
+NSPR_API(PRMonitor*) PR_NewMonitor(void);
+
+/*
+** Destroy a monitor. The caller is responsible for guaranteeing that the
+** monitor is no longer in use. There must be no thread waiting on the monitor's
+** condition variable and that the lock is not held.
+**
+*/
+NSPR_API(void) PR_DestroyMonitor(PRMonitor *mon);
+
+/*
+** Enter the lock associated with the monitor. If the calling thread currently
+** is in the monitor, the call to enter will silently succeed. In either case,
+** it will increment the entry count by one.
+*/
+NSPR_API(void) PR_EnterMonitor(PRMonitor *mon);
+
+/*
+** Decrement the entry count associated with the monitor. If the decremented
+** entry count is zero, the monitor is exited. Returns PR_FAILURE if the
+** calling thread has not entered the monitor.
+*/
+NSPR_API(PRStatus) PR_ExitMonitor(PRMonitor *mon);
+
+/*
+** Wait for a notify on the monitor's condition variable. Sleep for "ticks"
+** amount of time (if "ticks" is PR_INTERVAL_NO_TIMEOUT then the sleep is
+** indefinite).
+**
+** While the thread is waiting it exits the monitor (as if it called
+** PR_ExitMonitor as many times as it had called PR_EnterMonitor).  When
+** the wait has finished the thread regains control of the monitors lock
+** with the same entry count as before the wait began.
+**
+** The thread waiting on the monitor will be resumed when the monitor is
+** notified (assuming the thread is the next in line to receive the
+** notify) or when the "ticks" timeout elapses.
+**
+** Returns PR_FAILURE if the caller has not entered the monitor.
+*/
+NSPR_API(PRStatus) PR_Wait(PRMonitor *mon, PRIntervalTime ticks);
+
+/*
+** Notify a thread waiting on the monitor's condition variable. If a thread
+** is waiting on the condition variable (using PR_Wait) then it is awakened
+** and attempts to reenter the monitor.
+*/
+NSPR_API(PRStatus) PR_Notify(PRMonitor *mon);
+
+/*
+** Notify all of the threads waiting on the monitor's condition variable.
+** All of threads waiting on the condition are scheduled to reenter the
+** monitor.
+*/
+NSPR_API(PRStatus) PR_NotifyAll(PRMonitor *mon);
+
+/*
+** PR_ASSERT_CURRENT_THREAD_IN_MONITOR
+** If the current thread is in |mon|, this assertion is guaranteed to
+** succeed.  Otherwise, the behavior of this function is undefined.
+*/
+#if defined(DEBUG) || defined(FORCE_PR_ASSERT)
+#define PR_ASSERT_CURRENT_THREAD_IN_MONITOR(/* PRMonitor* */ mon) \
+    PR_AssertCurrentThreadInMonitor(mon)
+#else
+#define PR_ASSERT_CURRENT_THREAD_IN_MONITOR(/* PRMonitor* */ mon)
+#endif
+
+/* Don't call this function directly. */
+NSPR_API(void) PR_AssertCurrentThreadInMonitor(PRMonitor *mon);
+
+PR_END_EXTERN_C
+
+#endif /* prmon_h___ */
diff --git a/nsprpub/pr/include/prmwait.h b/nsprpub/pr/include/prmwait.h
new file mode 100644
index 0000000000..16c0762199
--- /dev/null
+++ b/nsprpub/pr/include/prmwait.h
@@ -0,0 +1,380 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#if defined(_PRMWAIT_H)
+#else
+#define _PRMWAIT_H
+
+#include "prio.h"
+#include "prtypes.h"
+#include "prclist.h"
+
+PR_BEGIN_EXTERN_C
+
+/********************************************************************************/
+/********************************************************************************/
+/********************************************************************************/
+/******************************       WARNING        ****************************/
+/********************************************************************************/
+/**************************** This is work in progress. *************************/
+/************************** Do not make any assumptions *************************/
+/************************** about the stability of this *************************/
+/************************** API or the underlying imple- ************************/
+/************************** mentation.                   ************************/
+/********************************************************************************/
+/********************************************************************************/
+
+/*
+** STRUCTURE:   PRWaitGroup
+** DESCRIPTION:
+**      The client may define several wait groups in order to semantically
+**      tie a collection of file descriptors for a single purpose. This allows
+**      easier dispatching of threads that returned with active file descriptors
+**      from the wait function.
+*/
+typedef struct PRWaitGroup PRWaitGroup;
+
+/*
+** ENUMERATION: PRMWStatus
+** DESCRIPTION:
+**      This enumeration is used to indicate the completion status of
+**      a receive wait object. Generally stated, a positive value indicates
+**      that the operation is not yet complete. A zero value indicates
+**      success (similar to PR_SUCCESS) and any negative value is an
+**      indication of failure. The reason for the failure can be retrieved
+**      by calling PR_GetError().
+**
+**  PR_MW_PENDING       The operation is still pending. None of the other
+**                      fields of the object are currently valid.
+**  PR_MW_SUCCESS       The operation is complete and it was successful.
+**  PR_MW_FAILURE       The operation failed. The reason for the failure
+**                      can be retrieved by calling PR_GetError().
+**  PR_MW_TIMEOUT       The amount of time allowed for by the object's
+**                      'timeout' field has expired w/o the operation
+**                      otherwise coming to closure.
+**  PR_MW_INTERRUPT     The operation was cancelled, either by the client
+**                      calling PR_CancelWaitFileDesc() or destroying the
+**                      entire wait group (PR_DestroyWaitGroup()).
+*/
+typedef enum PRMWStatus
+{
+    PR_MW_PENDING = 1,
+    PR_MW_SUCCESS = 0,
+    PR_MW_FAILURE = -1,
+    PR_MW_TIMEOUT = -2,
+    PR_MW_INTERRUPT = -3
+} PRMWStatus;
+
+/*
+** STRUCTURE:   PRMemoryDescriptor
+** DESCRIPTION:
+**      THis is a descriptor for an interval of memory. It contains a
+**      pointer to the first byte of that memory and the length (in
+**      bytes) of the interval.
+*/
+typedef struct PRMemoryDescriptor
+{
+    void *start;                /* pointer to first byte of memory */
+    PRSize length;              /* length (in bytes) of memory interval */
+} PRMemoryDescriptor;
+
+/*
+** STRUCTURE:   PRMWaitClientData
+** DESCRIPTION:
+**      An opague stucture for which a client MAY give provide a concrete
+**      definition and associate with a receive descriptor. The NSPR runtime
+**      does not manage this field. It is completely up to the client.
+*/
+typedef struct PRMWaitClientData PRMWaitClientData;
+
+/*
+** STRUCTURE:   PRRecvWait
+** DESCRIPTION:
+**      A receive wait object contains the file descriptor that is subject
+**      to the wait and the amount of time (beginning epoch established
+**      when the object is presented to the runtime) the the channel should
+**      block before abandoning the process.
+**
+**      The success of the wait operation will be noted in the object's
+**      'outcome' field. The fields are not valid when the NSPR runtime
+**      is in possession of the object.
+**
+**      The memory descriptor describes an interval of writable memory
+**      in the caller's address space where data from an initial read
+**      can be placed. The description may indicate a null interval.
+*/
+typedef struct PRRecvWait
+{
+    PRCList internal;           /* internal runtime linkages */
+
+    PRFileDesc *fd;             /* file descriptor associated w/ object */
+    PRMWStatus outcome;         /* outcome of the current/last operation */
+    PRIntervalTime timeout;     /* time allowed for entire operation */
+
+    PRInt32 bytesRecv;          /* number of bytes transferred into buffer */
+    PRMemoryDescriptor buffer;  /* where to store first segment of input data */
+    PRMWaitClientData *client;  /* pointer to arbitrary client defined data */
+} PRRecvWait;
+
+/*
+** STRUCTURE:   PRMWaitEnumerator
+** DESCRIPTION:
+**      An enumeration object is used to store the state of an existing
+**      enumeration over a wait group. The opaque object must be allocated
+**      by the client and the reference presented on each call to the
+**      pseudo-stateless enumerator. The enumeration objects are sharable
+**      only in serial fashion.
+*/
+typedef struct PRMWaitEnumerator PRMWaitEnumerator;
+
+
+/*
+** FUNCTION:    PR_AddWaitFileDesc
+** DESCRIPTION:
+**      This function will effectively add a file descriptor to the
+**      list of those waiting for network receive. The new descriptor
+**      will be semantically tied to the wait group specified.
+**
+**      The ownership for the storage pointed to by 'desc' is temporarily
+**      passed over the the NSPR runtime. It will be handed back by the
+**      function PR_WaitRecvReady().
+**
+**  INPUTS
+**      group       A reference to a PRWaitGroup or NULL. Wait groups are
+**                  created by calling PR_CreateWaitGroup() and are used
+**                  to semantically group various file descriptors by the
+**                  client's application.
+**      desc        A reference to a valid PRRecvWait. The object of the
+**                  reference must be preserved and not be modified
+**                  until its ownership is returned to the client.
+**  RETURN
+**      PRStatus    An indication of success. If equal to PR_FAILUE details
+**                  of the failure are avaiable via PR_GetError().
+**
+**  ERRORS
+**      PR_INVALID_ARGUMENT_ERROR
+**                  Invalid 'group' identifier or duplicate 'desc' object.
+**      PR_OUT_OF_MEMORY_ERROR
+**                  Insuffient memory for internal data structures.
+**      PR_INVALID_STATE_ERROR
+**                  The group is being destroyed.
+*/
+NSPR_API(PRStatus) PR_AddWaitFileDesc(PRWaitGroup *group, PRRecvWait *desc);
+
+/*
+** FUNCTION:    PR_WaitRecvReady
+** DESCRIPTION:
+**      PR_WaitRecvReady will block the calling thread until one of the
+**      file descriptors that have been added via PR_AddWaitFileDesc is
+**      available for input I/O.
+**  INPUT
+**      group       A pointer to a valid PRWaitGroup or NULL (the null
+**                  group. The function will block the caller until a
+**                  channel from the wait group becomes ready for receive
+**                  or there is some sort of error.
+**  RETURN
+**      PRReciveWait
+**                  When the caller is resumed it is either returned a
+**                  valid pointer to a previously added receive wait or
+**                  a NULL. If the latter, the function has terminated
+**                  for a reason that can be determined by calling
+**                  PR_GetError().
+**                  If a valid pointer is returned, the reference is to the
+**                  file descriptor contained in the receive wait object.
+**                  The outcome of the wait operation may still fail, and
+**                  if it has, that fact will be noted in the object's
+**                  outcome field. Details can be retrieved from PR_GetError().
+**
+**  ERRORS
+**      PR_INVALID_ARGUMENT_ERROR
+**                  The 'group' is not known by the runtime.
+**      PR_PENDING_INTERRUPT_ERROR
+                    The thread was interrupted.
+**      PR_INVALID_STATE_ERROR
+**                  The group is being destroyed.
+*/
+NSPR_API(PRRecvWait*) PR_WaitRecvReady(PRWaitGroup *group);
+
+/*
+** FUNCTION:    PR_CancelWaitFileDesc
+** DESCRIPTION:
+**      PR_CancelWaitFileDesc is provided as a means for cancelling operations
+**      on objects previously submitted by use of PR_AddWaitFileDesc(). If
+**      the runtime knows of the object, it will be marked as having failed
+**      because it was interrupted (similar to PR_Interrupt()). The first
+**      available thread waiting on the group will be made to return the
+**      PRRecvWait object with the outcome noted.
+**
+**  INPUTS
+**      group       The wait group under which the wait receive object was
+**                  added.
+**      desc        A pointer to the wait receive object that is to be
+**                  cancelled.
+**  RETURN
+**      PRStatus    If the wait receive object was located and associated
+**                  with the specified wait group, the status returned will
+**                  be PR_SUCCESS. There is still a race condition that would
+**                  permit the offected object to complete normally, but it
+**                  is assured that it will complete in the near future.
+**                  If the receive object or wait group are invalid, the
+**                  function will return with a status of PR_FAILURE.
+**
+**  ERRORS
+**      PR_INVALID_ARGUMENT_ERROR
+**                  The 'group' argument is not recognized as a valid group.
+**      PR_COLLECTION_EMPTY_ERROR
+**                  There are no more receive wait objects in the group's
+**                  collection.
+**      PR_INVALID_STATE_ERROR
+**                  The group is being destroyed.
+*/
+NSPR_API(PRStatus) PR_CancelWaitFileDesc(PRWaitGroup *group, PRRecvWait *desc);
+
+/*
+** FUNCTION:    PR_CancelWaitGroup
+** DESCRIPTION:
+**      PR_CancelWaitGroup is provided as a means for cancelling operations
+**      on objects previously submitted by use of PR_AddWaitFileDesc(). Each
+**      successive call will return a pointer to a PRRecvWait object that
+**      was previously registered via PR_AddWaitFileDesc(). If no wait
+**      objects are associated with the wait group, a NULL will be returned.
+**      This function should be called in a loop until a NULL is returned
+**      to reclaim all the wait objects prior to calling PR_DestroyWaitGroup().
+**
+**  INPUTS
+**      group       The wait group under which the wait receive object was
+**                  added.
+**  RETURN
+**      PRRecvWait* If the wait group is valid and at least one receive wait
+**                  object is present in the group, that object will be
+**                  marked as PR_MW_INTERRUPT'd and removed from the group's
+**                  queues. Otherwise a NULL will be returned and the reason
+**                  for the NULL may be retrieved by calling PR_GetError().
+**
+**  ERRORS
+**      PR_INVALID_ARGUMENT_ERROR
+**      PR_GROUP_EMPTY_ERROR
+*/
+NSPR_API(PRRecvWait*) PR_CancelWaitGroup(PRWaitGroup *group);
+
+/*
+** FUNCTION:    PR_CreateWaitGroup
+** DESCRIPTION:
+**      A wait group is an opaque object that a client may create in order
+**      to semantically group various wait requests. Each wait group is
+**      unique, including the default wait group (NULL). A wait request
+**      that was added under a wait group will only be serviced by a caller
+**      that specified the same wait group.
+**
+**  INPUT
+**      size        The size of the hash table to be used to contain the
+**                  receive wait objects. This is just the initial size.
+**                  It will grow as it needs to, but to avoid that hassle
+**                  one can suggest a suitable size initially. It should
+**                  be ~30% larger than the maximum number of receive wait
+**                  objects expected.
+**  RETURN
+**      PRWaitGroup If successful, the function will return a pointer to an
+**                  object that was allocated by and owned by the runtime.
+**                  The reference remains valid until it is explicitly destroyed
+**                  by calling PR_DestroyWaitGroup().
+**
+**  ERRORS
+**      PR_OUT_OF_MEMORY_ERROR
+*/
+NSPR_API(PRWaitGroup*) PR_CreateWaitGroup(PRInt32 size);
+
+/*
+** FUNCTION:    PR_DestroyWaitGroup
+** DESCRIPTION:
+**      Undo the effects of PR_CreateWaitGroup(). Any receive wait operations
+**      on the group will be treated as if the each had been the target of a
+**      PR_CancelWaitFileDesc().
+**
+**  INPUT
+**      group       Reference to a wait group previously allocated using
+**                  PR_CreateWaitGroup().
+**  RETURN
+**      PRStatus    Will be PR_SUCCESS if the wait group was valid and there
+**                  are no receive wait objects in that group. Otherwise
+**                  will indicate PR_FAILURE.
+**
+**  ERRORS
+**      PR_INVALID_ARGUMENT_ERROR
+**                  The 'group' argument does not reference a known object.
+**      PR_INVALID_STATE_ERROR
+**                  The group still contains receive wait objects.
+*/
+NSPR_API(PRStatus) PR_DestroyWaitGroup(PRWaitGroup *group);
+
+/*
+** FUNCTION:    PR_CreateMWaitEnumerator
+** DESCRIPTION:
+**      The PR_CreateMWaitEnumerator() function returns a reference to an
+**      opaque PRMWaitEnumerator object. The enumerator object is required
+**      as an argument for each successive call in the stateless enumeration
+**      of the indicated wait group.
+**
+**      group       The wait group that the enumeration is intended to
+**                  process. It may be be the default wait group (NULL).
+** RETURN
+**      PRMWaitEnumerator* group
+**                  A reference to an object that will be used to store
+**                  intermediate state of enumerations.
+** ERRORS
+**      Errors are indicated by the function returning a NULL.
+**      PR_INVALID_ARGUMENT_ERROR
+**                  The 'group' argument does not reference a known object.
+**      PR_OUT_OF_MEMORY_ERROR
+*/
+NSPR_API(PRMWaitEnumerator*) PR_CreateMWaitEnumerator(PRWaitGroup *group);
+
+/*
+** FUNCTION:    PR_DestroyMWaitEnumerator
+** DESCRIPTION:
+**      Destroys the object created by PR_CreateMWaitEnumerator(). The reference
+**      used as an argument becomes invalid.
+**
+** INPUT
+**      PRMWaitEnumerator* enumerator
+**          The PRMWaitEnumerator object to destroy.
+** RETURN
+**      PRStatus
+**          PR_SUCCESS if successful, PR_FAILURE otherwise.
+** ERRORS
+**      PR_INVALID_ARGUMENT_ERROR
+**                  The enumerator is invalid.
+*/
+NSPR_API(PRStatus) PR_DestroyMWaitEnumerator(PRMWaitEnumerator* enumerator);
+
+/*
+** FUNCTION:    PR_EnumerateWaitGroup
+** DESCRIPTION:
+**      PR_EnumerateWaitGroup is a thread safe enumerator over a wait group.
+**      Each call to the enumerator must present a valid PRMWaitEnumerator
+**      rererence and a pointer to the "previous" element returned from the
+**      enumeration process or a NULL.
+**
+**      An enumeration is started by passing a NULL as the "previous" value.
+**      Subsequent calls to the enumerator must pass in the result of the
+**      previous call. The enumeration end is signaled by the runtime returning
+**      a NULL as the result.
+**
+**      Modifications to the content of the wait group are allowed during
+**      an enumeration. The effect is that the enumeration may have to be
+**      "reset" and that may result in duplicates being returned from the
+**      enumeration.
+**
+**      An enumeration may be abandoned at any time. The runtime is not
+**      keeping any state, so there are no issues in that regard.
+*/
+NSPR_API(PRRecvWait*) PR_EnumerateWaitGroup(
+    PRMWaitEnumerator *enumerator, const PRRecvWait *previous);
+
+PR_END_EXTERN_C
+
+#endif /* defined(_PRMWAIT_H) */
+
+/* prmwait.h */
diff --git a/nsprpub/pr/include/prnetdb.h b/nsprpub/pr/include/prnetdb.h
new file mode 100644
index 0000000000..7a7ea8634c
--- /dev/null
+++ b/nsprpub/pr/include/prnetdb.h
@@ -0,0 +1,467 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prnetdb_h___
+#define prnetdb_h___
+
+#include "prtypes.h"
+#include "prio.h"
+
+PR_BEGIN_EXTERN_C
+
+
+/*
+ *********************************************************************
+ *  Translate an Internet address to/from a character string
+ *********************************************************************
+ */
+NSPR_API(PRStatus) PR_StringToNetAddr(
+    const char *string, PRNetAddr *addr);
+
+NSPR_API(PRStatus) PR_NetAddrToString(
+    const PRNetAddr *addr, char *string, PRUint32 size);
+
+/*
+** Structures returned by network data base library.  All addresses are
+** supplied in host order, and returned in network order (suitable for
+** use in system calls).
+*/
+/*
+** Beware that WINSOCK.H defines h_addrtype and h_length as short.
+** Client code does direct struct copies of hostent to PRHostEnt and
+** hence the ifdef.
+*/
+typedef struct PRHostEnt {
+    char *h_name;       /* official name of host */
+    char **h_aliases;   /* alias list */
+#ifdef WIN32
+    PRInt16 h_addrtype; /* host address type */
+    PRInt16 h_length;   /* length of address */
+#else
+    PRInt32 h_addrtype; /* host address type */
+    PRInt32 h_length;   /* length of address */
+#endif
+    char **h_addr_list; /* list of addresses from name server */
+} PRHostEnt;
+
+/* A safe size to use that will mostly work... */
+#if (defined(AIX) && defined(_THREAD_SAFE))
+#define PR_NETDB_BUF_SIZE sizeof(struct protoent_data)
+#else
+#define PR_NETDB_BUF_SIZE 1024
+#endif
+
+/***********************************************************************
+** FUNCTION:
+** DESCRIPTION: PR_GetHostByName()
+** Lookup a host by name.
+**
+** INPUTS:
+**  char *hostname      Character string defining the host name of interest
+**  char *buf           A scratch buffer for the runtime to return result.
+**                      This buffer is allocated by the caller.
+**  PRIntn bufsize      Number of bytes in 'buf'. A recommnded value to
+**                      use is PR_NETDB_BUF_SIZE.
+** OUTPUTS:
+**  PRHostEnt *hostentry
+**                      This structure is filled in by the runtime if
+**                      the function returns PR_SUCCESS. This structure
+**                      is allocated by the caller.
+** RETURN:
+**  PRStatus            PR_SUCCESS if the lookup succeeds. If it fails
+**                      the result will be PR_FAILURE and the reason
+**                      for the failure can be retrieved by PR_GetError().
+***********************************************************************/
+NSPR_API(PRStatus) PR_GetHostByName(
+    const char *hostname, char *buf, PRIntn bufsize, PRHostEnt *hostentry);
+
+/***********************************************************************
+** FUNCTION:
+** DESCRIPTION: PR_GetIPNodeByName()
+** Lookup a host by name. Equivalent to getipnodebyname(AI_DEFAULT)
+** of RFC 2553.
+**
+** INPUTS:
+**  char *hostname      Character string defining the host name of interest
+**  PRUint16 af         Address family (either PR_AF_INET or PR_AF_INET6)
+**  PRIntn flags        Specifies the types of addresses that are searched
+**                      for and the types of addresses that are returned.
+**                      The only supported flag is PR_AI_DEFAULT.
+**  char *buf           A scratch buffer for the runtime to return result.
+**                      This buffer is allocated by the caller.
+**  PRIntn bufsize      Number of bytes in 'buf'. A recommnded value to
+**                      use is PR_NETDB_BUF_SIZE.
+** OUTPUTS:
+**  PRHostEnt *hostentry
+**                      This structure is filled in by the runtime if
+**                      the function returns PR_SUCCESS. This structure
+**                      is allocated by the caller.
+** RETURN:
+**  PRStatus            PR_SUCCESS if the lookup succeeds. If it fails
+**                      the result will be PR_FAILURE and the reason
+**                      for the failure can be retrieved by PR_GetError().
+***********************************************************************/
+
+
+#define PR_AI_ALL         0x08
+#define PR_AI_V4MAPPED    0x10
+#define PR_AI_ADDRCONFIG  0x20
+#define PR_AI_NOCANONNAME 0x8000
+#define PR_AI_DEFAULT     (PR_AI_V4MAPPED | PR_AI_ADDRCONFIG)
+
+NSPR_API(PRStatus) PR_GetIPNodeByName(
+    const char *hostname,
+    PRUint16 af,
+    PRIntn flags,
+    char *buf,
+    PRIntn bufsize,
+    PRHostEnt *hostentry);
+
+/***********************************************************************
+** FUNCTION:
+** DESCRIPTION: PR_GetHostByAddr()
+** Lookup a host entry by its network address.
+**
+** INPUTS:
+**  char *hostaddr      IP address of host in question
+**  char *buf           A scratch buffer for the runtime to return result.
+**                      This buffer is allocated by the caller.
+**  PRIntn bufsize      Number of bytes in 'buf'. A recommnded value to
+**                      use is PR_NETDB_BUF_SIZE.
+** OUTPUTS:
+**  PRHostEnt *hostentry
+**                      This structure is filled in by the runtime if
+**                      the function returns PR_SUCCESS. This structure
+**                      is allocated by the caller.
+** RETURN:
+**  PRStatus            PR_SUCCESS if the lookup succeeds. If it fails
+**                      the result will be PR_FAILURE and the reason
+**                      for the failure can be retrieved by PR_GetError().
+***********************************************************************/
+NSPR_API(PRStatus) PR_GetHostByAddr(
+    const PRNetAddr *hostaddr, char *buf, PRIntn bufsize, PRHostEnt *hostentry);
+
+/***********************************************************************
+** FUNCTION:    PR_EnumerateHostEnt()
+** DESCRIPTION:
+**  A stateless enumerator over a PRHostEnt structure acquired from
+**  PR_GetHostByName() PR_GetHostByAddr() to evaluate the possible
+**  network addresses.
+**
+** INPUTS:
+**  PRIntn  enumIndex   Index of the enumeration. The enumeration starts
+**                      and ends with a value of zero.
+**
+**  PRHostEnt *hostEnt  A pointer to a host entry struct that was
+**                      previously returned by PR_GetHostByName() or
+**                      PR_GetHostByAddr().
+**
+**  PRUint16 port       The port number to be assigned as part of the
+**                      PRNetAddr.
+**
+** OUTPUTS:
+**  PRNetAddr *address  A pointer to an address structure that will be
+**                      filled in by the call to the enumeration if the
+**                      result of the call is greater than zero.
+**
+** RETURN:
+**  PRIntn              The value that should be used for the next call
+**                      of the enumerator ('enumIndex'). The enumeration
+**                      is ended if this value is returned zero.
+**                      If a value of -1 is returned, the enumeration
+**                      has failed. The reason for the failure can be
+**                      retrieved by calling PR_GetError().
+***********************************************************************/
+NSPR_API(PRIntn) PR_EnumerateHostEnt(
+    PRIntn enumIndex, const PRHostEnt *hostEnt, PRUint16 port, PRNetAddr *address);
+
+/***********************************************************************
+** FUNCTION: PR_InitializeNetAddr(),
+** DESCRIPTION:
+**  Initialize the fields of a PRNetAddr, assigning well known values as
+**  appropriate.
+**
+** INPUTS
+**  PRNetAddrValue val  The value to be assigned to the IP Address portion
+**                      of the network address. This can only specify the
+**                      special well known values that are equivalent to
+**                      INADDR_ANY and INADDR_LOOPBACK.
+**
+**  PRUint16 port       The port number to be assigned in the structure.
+**
+** OUTPUTS:
+**  PRNetAddr *addr     The address to be manipulated.
+**
+** RETURN:
+**  PRStatus            To indicate success or failure. If the latter, the
+**                      reason for the failure can be retrieved by calling
+**                      PR_GetError();
+***********************************************************************/
+typedef enum PRNetAddrValue
+{
+    PR_IpAddrNull,      /* do NOT overwrite the IP address */
+    PR_IpAddrAny,       /* assign logical INADDR_ANY to IP address */
+    PR_IpAddrLoopback,  /* assign logical INADDR_LOOPBACK  */
+    PR_IpAddrV4Mapped   /* IPv4 mapped address */
+} PRNetAddrValue;
+
+NSPR_API(PRStatus) PR_InitializeNetAddr(
+    PRNetAddrValue val, PRUint16 port, PRNetAddr *addr);
+
+/***********************************************************************
+** FUNCTION: PR_SetNetAddr(),
+** DESCRIPTION:
+**  Set the fields of a PRNetAddr, assigning well known values as
+**  appropriate. This function is similar to PR_InitializeNetAddr
+**  but differs in that the address family is specified.
+**
+** INPUTS
+**  PRNetAddrValue val  The value to be assigned to the IP Address portion
+**                      of the network address. This can only specify the
+**                      special well known values that are equivalent to
+**                      INADDR_ANY and INADDR_LOOPBACK.
+**
+**  PRUint16 af         The address family (either PR_AF_INET or PR_AF_INET6)
+**
+**  PRUint16 port       The port number to be assigned in the structure.
+**
+** OUTPUTS:
+**  PRNetAddr *addr     The address to be manipulated.
+**
+** RETURN:
+**  PRStatus            To indicate success or failure. If the latter, the
+**                      reason for the failure can be retrieved by calling
+**                      PR_GetError();
+***********************************************************************/
+NSPR_API(PRStatus) PR_SetNetAddr(
+    PRNetAddrValue val, PRUint16 af, PRUint16 port, PRNetAddr *addr);
+
+/***********************************************************************
+** FUNCTION:
+** DESCRIPTION: PR_IsNetAddrType()
+** Determine if the network address is of the specified type.
+**
+** INPUTS:
+**  const PRNetAddr *addr   A network address.
+**  PRNetAddrValue          The type of network address
+**
+** RETURN:
+**  PRBool                  PR_TRUE if the network address is of the
+**                          specified type, else PR_FALSE.
+***********************************************************************/
+NSPR_API(PRBool) PR_IsNetAddrType(const PRNetAddr *addr, PRNetAddrValue val);
+
+/***********************************************************************
+** FUNCTION:
+** DESCRIPTION: PR_ConvertIPv4AddrToIPv6()
+** Convert an IPv4 addr to an (IPv4-mapped) IPv6 addr
+**
+** INPUTS:
+**  PRUint32    v4addr      IPv4 address
+**
+** OUTPUTS:
+**  PRIPv6Addr *v6addr      The converted IPv6 address
+**
+** RETURN:
+**  void
+**
+***********************************************************************/
+NSPR_API(void) PR_ConvertIPv4AddrToIPv6(PRUint32 v4addr, PRIPv6Addr *v6addr);
+
+/***********************************************************************
+** MACRO:
+** DESCRIPTION: PR_NetAddrFamily()
+** Get the 'family' field of a PRNetAddr union.
+**
+** INPUTS:
+**  const PRNetAddr *addr   A network address.
+**
+** RETURN:
+**  PRUint16                The 'family' field of 'addr'.
+***********************************************************************/
+#define PR_NetAddrFamily(addr) ((addr)->raw.family)
+
+/***********************************************************************
+** MACRO:
+** DESCRIPTION: PR_NetAddrInetPort()
+** Get the 'port' field of a PRNetAddr union.
+**
+** INPUTS:
+**  const PRNetAddr *addr   A network address.
+**
+** RETURN:
+**  PRUint16                The 'port' field of 'addr'.
+***********************************************************************/
+#define PR_NetAddrInetPort(addr) \
+    ((addr)->raw.family == PR_AF_INET6 ? (addr)->ipv6.port : (addr)->inet.port)
+
+/***********************************************************************
+** FUNCTION:
+** DESCRIPTION: PR_GetProtoByName()
+** Lookup a protocol entry based on protocol's name
+**
+** INPUTS:
+**  char *protocolname  Character string of the protocol's name.
+**  char *buf           A scratch buffer for the runtime to return result.
+**                      This buffer is allocated by the caller.
+**  PRIntn bufsize      Number of bytes in 'buf'. A recommnded value to
+**                      use is PR_NETDB_BUF_SIZE.
+** OUTPUTS:
+**  PRHostEnt *PRProtoEnt
+**                      This structure is filled in by the runtime if
+**                      the function returns PR_SUCCESS. This structure
+**                      is allocated by the caller.
+** RETURN:
+**  PRStatus            PR_SUCCESS if the lookup succeeds. If it fails
+**                      the result will be PR_FAILURE and the reason
+**                      for the failure can be retrieved by PR_GetError().
+***********************************************************************/
+
+typedef struct PRProtoEnt {
+    char *p_name;       /* official protocol name */
+    char **p_aliases;   /* alias list */
+#ifdef WIN32
+    PRInt16 p_num;      /* protocol # */
+#else
+    PRInt32 p_num;      /* protocol # */
+#endif
+} PRProtoEnt;
+
+NSPR_API(PRStatus) PR_GetProtoByName(
+    const char* protocolname, char* buffer, PRInt32 bufsize, PRProtoEnt* result);
+
+/***********************************************************************
+** FUNCTION:
+** DESCRIPTION: PR_GetProtoByNumber()
+** Lookup a protocol entry based on protocol's number
+**
+** INPUTS:
+**  PRInt32 protocolnumber
+**                      Number assigned to the protocol.
+**  char *buf           A scratch buffer for the runtime to return result.
+**                      This buffer is allocated by the caller.
+**  PRIntn bufsize      Number of bytes in 'buf'. A recommnded value to
+**                      use is PR_NETDB_BUF_SIZE.
+** OUTPUTS:
+**  PRHostEnt *PRProtoEnt
+**                      This structure is filled in by the runtime if
+**                      the function returns PR_SUCCESS. This structure
+**                      is allocated by the caller.
+** RETURN:
+**  PRStatus            PR_SUCCESS if the lookup succeeds. If it fails
+**                      the result will be PR_FAILURE and the reason
+**                      for the failure can be retrieved by PR_GetError().
+***********************************************************************/
+NSPR_API(PRStatus) PR_GetProtoByNumber(
+    PRInt32 protocolnumber, char* buffer, PRInt32 bufsize, PRProtoEnt* result);
+
+/***********************************************************************
+** FUNCTION:
+** DESCRIPTION: PR_GetAddrInfoByName()
+**  Look up a host by name. Equivalent to getaddrinfo(host, NULL, ...) of
+**  RFC 3493.
+**
+** INPUTS:
+**  char *hostname      Character string defining the host name of interest
+**  PRUint16 af         May be PR_AF_UNSPEC or PR_AF_INET.
+**  PRIntn flags        May be either PR_AI_ADDRCONFIG or
+**                      PR_AI_ADDRCONFIG | PR_AI_NOCANONNAME. Include
+**                      PR_AI_NOCANONNAME to suppress the determination of
+**                      the canonical name corresponding to hostname.
+** RETURN:
+**  PRAddrInfo*         Handle to a data structure containing the results
+**                      of the host lookup. Use PR_EnumerateAddrInfo to
+**                      inspect the PRNetAddr values stored in this object.
+**                      When no longer needed, this handle must be destroyed
+**                      with a call to PR_FreeAddrInfo.  If a lookup error
+**                      occurs, then NULL will be returned.
+***********************************************************************/
+typedef struct PRAddrInfo PRAddrInfo;
+
+NSPR_API(PRAddrInfo*) PR_GetAddrInfoByName(
+    const char *hostname, PRUint16 af, PRIntn flags);
+
+/***********************************************************************
+** FUNCTION:
+** DESCRIPTION: PR_FreeAddrInfo()
+**  Destroy the PRAddrInfo handle allocated by PR_GetAddrInfoByName().
+**
+** INPUTS:
+**  PRAddrInfo *addrInfo
+**                      The handle resulting from a successful call to
+**                      PR_GetAddrInfoByName().
+** RETURN:
+**  void
+***********************************************************************/
+NSPR_API(void) PR_FreeAddrInfo(PRAddrInfo *addrInfo);
+
+/***********************************************************************
+** FUNCTION:
+** DESCRIPTION: PR_EnumerateAddrInfo()
+**  A stateless enumerator over a PRAddrInfo handle acquired from
+**  PR_GetAddrInfoByName() to inspect the possible network addresses.
+**
+** INPUTS:
+**  void *enumPtr       Index pointer of the enumeration. The enumeration
+**                      starts and ends with a value of NULL.
+**  const PRAddrInfo *addrInfo
+**                      The PRAddrInfo handle returned by a successful
+**                      call to PR_GetAddrInfoByName().
+**  PRUint16 port       The port number to be assigned as part of the
+**                      PRNetAddr.
+** OUTPUTS:
+**  PRNetAddr *result   A pointer to an address structure that will be
+**                      filled in by the call to the enumeration if the
+**                      result of the call is not NULL.
+** RETURN:
+**  void*               The value that should be used for the next call
+**                      of the enumerator ('enumPtr'). The enumeration
+**                      is ended if this value is NULL.
+***********************************************************************/
+NSPR_API(void *) PR_EnumerateAddrInfo(
+    void *enumPtr, const PRAddrInfo *addrInfo, PRUint16 port, PRNetAddr *result);
+
+/***********************************************************************
+** FUNCTION:
+** DESCRIPTION: PR_GetCanonNameFromAddrInfo()
+**  Extracts the canonical name of the hostname passed to
+**  PR_GetAddrInfoByName().
+**
+** INPUTS:
+**  const PRAddrInfo *addrInfo
+**                      The PRAddrInfo handle returned by a successful
+**                      call to PR_GetAddrInfoByName().
+** RETURN:
+**  const char *        A const pointer to the canonical hostname stored
+**                      in the given PRAddrInfo handle. This pointer is
+**                      invalidated once the PRAddrInfo handle is destroyed
+**                      by a call to PR_FreeAddrInfo().
+***********************************************************************/
+NSPR_API(const char *) PR_GetCanonNameFromAddrInfo(
+    const PRAddrInfo *addrInfo);
+
+/***********************************************************************
+** FUNCTIONS: PR_ntohs, PR_ntohl, PR_ntohll, PR_htons, PR_htonl, PR_htonll
+**
+** DESCRIPTION: API entries for the common byte ordering routines.
+**
+**      PR_ntohs        16 bit conversion from network to host
+**      PR_ntohl        32 bit conversion from network to host
+**      PR_ntohll       64 bit conversion from network to host
+**      PR_htons        16 bit conversion from host to network
+**      PR_htonl        32 bit conversion from host to network
+**      PR_ntonll       64 bit conversion from host to network
+**
+***********************************************************************/
+NSPR_API(PRUint16) PR_ntohs(PRUint16);
+NSPR_API(PRUint32) PR_ntohl(PRUint32);
+NSPR_API(PRUint64) PR_ntohll(PRUint64);
+NSPR_API(PRUint16) PR_htons(PRUint16);
+NSPR_API(PRUint32) PR_htonl(PRUint32);
+NSPR_API(PRUint64) PR_htonll(PRUint64);
+
+PR_END_EXTERN_C
+
+#endif /* prnetdb_h___ */
diff --git a/nsprpub/pr/include/prolock.h b/nsprpub/pr/include/prolock.h
new file mode 100644
index 0000000000..7b57b3c71e
--- /dev/null
+++ b/nsprpub/pr/include/prolock.h
@@ -0,0 +1,178 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prolock_h___
+#define prolock_h___
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+/*
+** A locking mechanism, built on the existing PRLock definition,
+** is provided that will permit applications to define a Lock
+** Hierarchy (or Lock Ordering) schema. An application designed
+** using the Ordered Lock functions will terminate with a
+** diagnostic message when a lock inversion condition is
+** detected.
+**
+** The lock ordering detection is compile-time enabled only. In
+** optimized builds of NSPR, the Ordered Lock functions map
+** directly to PRLock functions, providing no lock order
+** detection.
+**
+** The Ordered Lock Facility is compiled in when DEBUG is defined at
+** compile-time. Ordered Lock can be forced on in optimized builds by
+** defining FORCE_NSPR_ORDERED_LOCK at compile-time. Both the
+** application using Ordered Lock and NSPR must be compiled with the
+** facility enabled to achieve the desired results.
+**
+** Application designers should use the macro interfaces to the Ordered
+** Lock facility to ensure that it is compiled out in optimized builds.
+**
+** Application designers are responsible for defining their own
+** lock hierarchy.
+**
+** Ordered Lock is thread-safe and SMP safe.
+**
+** See Also: prlock.h
+**
+** /lth. 10-Jun-1998.
+**
+*/
+
+/*
+** Opaque type for ordered lock.
+** ... Don't even think of looking in here.
+**
+*/
+
+#if defined(DEBUG) || defined(FORCE_NSPR_ORDERED_LOCKS)
+typedef void * PROrderedLock;
+#else
+/*
+** Map PROrderedLock and methods onto PRLock when ordered locking
+** is not compiled in.
+**
+*/
+#include "prlock.h"
+
+typedef PRLock PROrderedLock;
+#endif
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_CreateOrderedLock() -- Create an Ordered Lock
+**
+** DESCRIPTION: PR_CreateOrderedLock() creates an ordered lock.
+**
+** INPUTS:
+**  order: user defined order of this lock.
+**  name: name of the lock. For debugging purposes.
+**
+** OUTPUTS: returned
+**
+** RETURNS: PR_OrderedLock pointer
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_ORDERED_LOCKS)
+#define PR_CREATE_ORDERED_LOCK(order,name)\
+    PR_CreateOrderedLock((order),(name))
+#else
+#define PR_CREATE_ORDERED_LOCK(order) PR_NewLock()
+#endif
+
+NSPR_API(PROrderedLock *)
+PR_CreateOrderedLock(
+    PRInt32 order,
+    const char *name
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_DestroyOrderedLock() -- Destroy an Ordered Lock
+**
+** DESCRIPTION: PR_DestroyOrderedLock() destroys the ordered lock
+** referenced by lock.
+**
+** INPUTS: lock: pointer to a PROrderedLock
+**
+** OUTPUTS: the lock is destroyed
+**
+** RETURNS: void
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_ORDERED_LOCKS)
+#define PR_DESTROY_ORDERED_LOCK(lock) PR_DestroyOrderedLock((lock))
+#else
+#define PR_DESTROY_ORDERED_LOCK(lock) PR_DestroyLock((lock))
+#endif
+
+NSPR_API(void)
+PR_DestroyOrderedLock(
+    PROrderedLock *lock
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_LockOrderedLock() -- Lock an ordered lock
+**
+** DESCRIPTION: PR_LockOrderedLock() locks the ordered lock
+** referenced by lock. If the order of lock is less than or equal
+** to the order of the highest lock held by the locking thread,
+** the function asserts.
+**
+** INPUTS: lock: a pointer to a PROrderedLock
+**
+** OUTPUTS: The lock is held or the function asserts.
+**
+** RETURNS: void
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_ORDERED_LOCKS)
+#define PR_LOCK_ORDERED_LOCK(lock) PR_LockOrderedLock((lock))
+#else
+#define PR_LOCK_ORDERED_LOCK(lock) PR_Lock((lock))
+#endif
+
+NSPR_API(void)
+PR_LockOrderedLock(
+    PROrderedLock *lock
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_UnlockOrderedLock() -- unlock and Ordered Lock
+**
+** DESCRIPTION: PR_UnlockOrderedLock() unlocks the lock referenced
+** by lock.
+**
+** INPUTS: lock: a pointer to a PROrderedLock
+**
+** OUTPUTS: the lock is unlocked
+**
+** RETURNS:
+**  PR_SUCCESS
+**  PR_FAILURE
+**
+** RESTRICTIONS:
+**
+*/
+#if defined(DEBUG) || defined(FORCE_NSPR_ORDERED_LOCKS)
+#define PR_UNLOCK_ORDERED_LOCK(lock) PR_UnlockOrderedLock((lock))
+#else
+#define PR_UNLOCK_ORDERED_LOCK(lock) PR_Unlock((lock))
+#endif
+
+NSPR_API(PRStatus)
+PR_UnlockOrderedLock(
+    PROrderedLock *lock
+);
+
+PR_END_EXTERN_C
+
+#endif /* prolock_h___ */
diff --git a/nsprpub/pr/include/prpdce.h b/nsprpub/pr/include/prpdce.h
new file mode 100644
index 0000000000..bf9ea9e2b7
--- /dev/null
+++ b/nsprpub/pr/include/prpdce.h
@@ -0,0 +1,86 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * File:        prpdce.h
+ * Description: This file is the API defined to allow for DCE (aka POSIX)
+ *              thread emulation in an NSPR environment. It is not the
+ *              intent that this be a fully supported API.
+ */
+
+#if !defined(PRPDCE_H)
+#define PRPDCE_H
+
+#include "prlock.h"
+#include "prcvar.h"
+#include "prtypes.h"
+#include "prinrval.h"
+
+PR_BEGIN_EXTERN_C
+
+#define _PR_NAKED_CV_LOCK (PRLock*)0xdce1dce1
+
+/*
+** Test and acquire a lock.
+**
+** If the lock is acquired by the calling thread, the
+** return value will be PR_SUCCESS. If the lock is
+** already held, by another thread or this thread, the
+** result will be PR_FAILURE.
+*/
+NSPR_API(PRStatus) PRP_TryLock(PRLock *lock);
+
+/*
+** Create a naked condition variable
+**
+** A "naked" condition variable is one that is not created bound
+** to a lock. The CV created with this function is the only type
+** that may be used in the subsequent "naked" condition variable
+** operations (see PRP_NakedWait, PRP_NakedNotify, PRP_NakedBroadcast);
+*/
+NSPR_API(PRCondVar*) PRP_NewNakedCondVar(void);
+
+/*
+** Destroy a naked condition variable
+**
+** Destroy the condition variable created by PR_NewNakedCondVar.
+*/
+NSPR_API(void) PRP_DestroyNakedCondVar(PRCondVar *cvar);
+
+/*
+** Wait on a condition
+**
+** Wait on the condition variable 'cvar'. It is asserted that
+** the lock protecting the condition 'lock' is held by the
+** calling thread. If more time expires than that declared in
+** 'timeout' the condition will be notified. Waits can be
+** interrupted by another thread.
+**
+** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
+*/
+NSPR_API(PRStatus) PRP_NakedWait(
+    PRCondVar *cvar, PRLock *lock, PRIntervalTime timeout);
+
+/*
+** Notify a thread waiting on a condition
+**
+** Notify the condition specified 'cvar'.
+**
+** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
+*/
+NSPR_API(PRStatus) PRP_NakedNotify(PRCondVar *cvar);
+
+/*
+** Notify all threads waiting on a condition
+**
+** Notify the condition specified 'cvar'.
+**
+** NB: The CV ('cvar') must be one created using PR_NewNakedCondVar.
+*/
+NSPR_API(PRStatus) PRP_NakedBroadcast(PRCondVar *cvar);
+
+PR_END_EXTERN_C
+
+#endif /* PRPDCE_H */
diff --git a/nsprpub/pr/include/prprf.h b/nsprpub/pr/include/prprf.h
new file mode 100644
index 0000000000..759ef4053a
--- /dev/null
+++ b/nsprpub/pr/include/prprf.h
@@ -0,0 +1,122 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prprf_h___
+#define prprf_h___
+
+/*
+** API for PR printf like routines. Supports the following formats
+**  %d - decimal
+**  %u - unsigned decimal
+**  %x - unsigned hex
+**  %X - unsigned uppercase hex
+**  %o - unsigned octal
+**  %hd, %hu, %hx, %hX, %ho - 16-bit versions of above
+**  %ld, %lu, %lx, %lX, %lo - 32-bit versions of above
+**  %lld, %llu, %llx, %llX, %llo - 64 bit versions of above
+**  %s - string
+**  %c - character
+**  %p - pointer (deals with machine dependent pointer size)
+**  %f - float
+**  %g - float
+*/
+#include "prtypes.h"
+#include "prio.h"
+#include <stdio.h>
+#include <stdarg.h>
+
+PR_BEGIN_EXTERN_C
+
+/*
+** sprintf into a fixed size buffer. Guarantees that a NUL is at the end
+** of the buffer. Returns the length of the written output, NOT including
+** the NUL, or (PRUint32)-1 if an error occurs.
+*/
+NSPR_API(PRUint32) PR_snprintf(char *out, PRUint32 outlen, const char *fmt, ...);
+
+/*
+** sprintf into a PR_MALLOC'd buffer. Return a pointer to the malloc'd
+** buffer on success, NULL on failure. Call "PR_smprintf_free" to release
+** the memory returned.
+*/
+NSPR_API(char*) PR_smprintf(const char *fmt, ...);
+
+/*
+** Free the memory allocated, for the caller, by PR_smprintf
+*/
+NSPR_API(void) PR_smprintf_free(char *mem);
+
+/*
+** "append" sprintf into a PR_MALLOC'd buffer. "last" is the last value of
+** the PR_MALLOC'd buffer. sprintf will append data to the end of last,
+** growing it as necessary using realloc. If last is NULL, PR_sprintf_append
+** will allocate the initial string. The return value is the new value of
+** last for subsequent calls, or NULL if there is a malloc failure.
+*/
+NSPR_API(char*) PR_sprintf_append(char *last, const char *fmt, ...);
+
+/*
+** sprintf into a function. The function "f" is called with a string to
+** place into the output. "arg" is an opaque pointer used by the stuff
+** function to hold any state needed to do the storage of the output
+** data. The return value is a count of the number of characters fed to
+** the stuff function, or (PRUint32)-1 if an error occurs.
+*/
+typedef PRIntn (*PRStuffFunc)(void *arg, const char *s, PRUint32 slen);
+
+NSPR_API(PRUint32) PR_sxprintf(PRStuffFunc f, void *arg, const char *fmt, ...);
+
+/*
+** fprintf to a PRFileDesc
+*/
+NSPR_API(PRUint32) PR_fprintf(struct PRFileDesc* fd, const char *fmt, ...);
+
+/*
+** va_list forms of the above.
+*/
+NSPR_API(PRUint32) PR_vsnprintf(char *out, PRUint32 outlen, const char *fmt, va_list ap);
+NSPR_API(char*) PR_vsmprintf(const char *fmt, va_list ap);
+NSPR_API(char*) PR_vsprintf_append(char *last, const char *fmt, va_list ap);
+NSPR_API(PRUint32) PR_vsxprintf(PRStuffFunc f, void *arg, const char *fmt, va_list ap);
+NSPR_API(PRUint32) PR_vfprintf(struct PRFileDesc* fd, const char *fmt, va_list ap);
+
+/*
+***************************************************************************
+** FUNCTION: PR_sscanf
+** DESCRIPTION:
+**     PR_sscanf() scans the input character string, performs data
+**     conversions, and stores the converted values in the data objects
+**     pointed to by its arguments according to the format control
+**     string.
+**
+**     PR_sscanf() behaves the same way as the sscanf() function in the
+**     Standard C Library (stdio.h), with the following exceptions:
+**     - PR_sscanf() handles the NSPR integer and floating point types,
+**       such as PRInt16, PRInt32, PRInt64, and PRFloat64, whereas
+**       sscanf() handles the standard C types like short, int, long,
+**       and double.
+**     - PR_sscanf() has no multibyte character support, while sscanf()
+**       does.
+** INPUTS:
+**     const char *buf
+**         a character string holding the input to scan
+**     const char *fmt
+**         the format control string for the conversions
+**     ...
+**         variable number of arguments, each of them is a pointer to
+**         a data object in which the converted value will be stored
+** OUTPUTS: none
+** RETURNS: PRInt32
+**     The number of values converted and stored.
+** RESTRICTIONS:
+**    Multibyte characters in 'buf' or 'fmt' are not allowed.
+***************************************************************************
+*/
+
+NSPR_API(PRInt32) PR_sscanf(const char *buf, const char *fmt, ...);
+
+PR_END_EXTERN_C
+
+#endif /* prprf_h___ */
diff --git a/nsprpub/pr/include/prproces.h b/nsprpub/pr/include/prproces.h
new file mode 100644
index 0000000000..e23504ac57
--- /dev/null
+++ b/nsprpub/pr/include/prproces.h
@@ -0,0 +1,86 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prproces_h___
+#define prproces_h___
+
+#include "prtypes.h"
+#include "prio.h"
+
+PR_BEGIN_EXTERN_C
+
+/************************************************************************/
+/*****************************PROCESS OPERATIONS*************************/
+/************************************************************************/
+
+typedef struct PRProcess PRProcess;
+typedef struct PRProcessAttr PRProcessAttr;
+
+NSPR_API(PRProcessAttr *) PR_NewProcessAttr(void);
+
+NSPR_API(void) PR_ResetProcessAttr(PRProcessAttr *attr);
+
+NSPR_API(void) PR_DestroyProcessAttr(PRProcessAttr *attr);
+
+NSPR_API(void) PR_ProcessAttrSetStdioRedirect(
+    PRProcessAttr *attr,
+    PRSpecialFD stdioFd,
+    PRFileDesc *redirectFd
+);
+
+/*
+ * OBSOLETE -- use PR_ProcessAttrSetStdioRedirect instead.
+ */
+NSPR_API(void) PR_SetStdioRedirect(
+    PRProcessAttr *attr,
+    PRSpecialFD stdioFd,
+    PRFileDesc *redirectFd
+);
+
+NSPR_API(PRStatus) PR_ProcessAttrSetCurrentDirectory(
+    PRProcessAttr *attr,
+    const char *dir
+);
+
+NSPR_API(PRStatus) PR_ProcessAttrSetInheritableFD(
+    PRProcessAttr *attr,
+    PRFileDesc *fd,
+    const char *name
+);
+
+/*
+** Create a new process
+**
+** Create a new process executing the file specified as 'path' and with
+** the supplied arguments and environment.
+**
+** This function may fail because of illegal access (permissions),
+** invalid arguments or insufficient resources.
+**
+** A process may be created such that the creator can later synchronize its
+** termination using PR_WaitProcess().
+*/
+
+NSPR_API(PRProcess*) PR_CreateProcess(
+    const char *path,
+    char *const *argv,
+    char *const *envp,
+    const PRProcessAttr *attr);
+
+NSPR_API(PRStatus) PR_CreateProcessDetached(
+    const char *path,
+    char *const *argv,
+    char *const *envp,
+    const PRProcessAttr *attr);
+
+NSPR_API(PRStatus) PR_DetachProcess(PRProcess *process);
+
+NSPR_API(PRStatus) PR_WaitProcess(PRProcess *process, PRInt32 *exitCode);
+
+NSPR_API(PRStatus) PR_KillProcess(PRProcess *process);
+
+PR_END_EXTERN_C
+
+#endif /* prproces_h___ */
diff --git a/nsprpub/pr/include/prrng.h b/nsprpub/pr/include/prrng.h
new file mode 100644
index 0000000000..db7dc68c66
--- /dev/null
+++ b/nsprpub/pr/include/prrng.h
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/*
+** prrng.h -- NSPR Random Number Generator
+**
+**
+** lth. 29-Oct-1999.
+*/
+
+#ifndef prrng_h___
+#define prrng_h___
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+/*
+** PR_GetRandomNoise() -- Get random noise from the host platform
+**
+** Description:
+** PR_GetRandomNoise() provides, depending on platform, a random value.
+** The length of the random value is dependent on platform and the
+** platform's ability to provide a random value at that moment.
+**
+** The intent of PR_GetRandomNoise() is to provide a "seed" value for a
+** another random number generator that may be suitable for
+** cryptographic operations. This implies that the random value
+** provided may not be, by itself, cryptographically secure. The value
+** generated by PR_GetRandomNoise() is at best, extremely difficult to
+** predict and is as non-deterministic as the underlying platfrom can
+** provide.
+**
+** Inputs:
+**   buf -- pointer to a caller supplied buffer to contain the
+**          generated random number. buf must be at least as large as
+**          is specified in the 'size' argument.
+**
+**   size -- the requested size of the generated random number
+**
+** Outputs:
+**   a random number provided in 'buf'.
+**
+** Returns:
+**   PRSize value equal to the size of the random number actually
+**   generated, or zero. The generated size may be less than the size
+**   requested. A return value of zero means that PR_GetRandomNoise() is
+**   not implemented on this platform, or there is no available noise
+**   available to be returned at the time of the call.
+**
+** Restrictions:
+**   Calls to PR_GetRandomNoise() may use a lot of CPU on some platforms.
+**   Some platforms may block for up to a few seconds while they
+**   accumulate some noise. Busy machines generate lots of noise, but
+**   care is advised when using PR_GetRandomNoise() frequently in your
+**   application.
+**
+** History:
+**   Parts of the model dependent implementation for PR_GetRandomNoise()
+**   were taken in whole or part from code previously in Netscape's NSS
+**   component.
+**
+*/
+NSPR_API(PRSize) PR_GetRandomNoise(
+    void    *buf,
+    PRSize  size
+);
+
+PR_END_EXTERN_C
+
+#endif /* prrng_h___ */
+/* end prrng.h */
diff --git a/nsprpub/pr/include/prrwlock.h b/nsprpub/pr/include/prrwlock.h
new file mode 100644
index 0000000000..ab47b53fb0
--- /dev/null
+++ b/nsprpub/pr/include/prrwlock.h
@@ -0,0 +1,88 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** File:        prrwlock.h
+** Description: API to basic reader-writer lock functions of NSPR.
+**
+**/
+
+#ifndef prrwlock_h___
+#define prrwlock_h___
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+/*
+ * PRRWLock --
+ *
+ *  The reader writer lock, PRRWLock, is an opaque object to the clients
+ *  of NSPR.  All routines operate on a pointer to this opaque entity.
+ */
+
+
+typedef struct PRRWLock PRRWLock;
+
+#define PR_RWLOCK_RANK_NONE 0
+
+
+/***********************************************************************
+** FUNCTION:    PR_NewRWLock
+** DESCRIPTION:
+**  Returns a pointer to a newly created reader-writer lock object.
+** INPUTS:      Lock rank
+**              Lock name
+** OUTPUTS:     void
+** RETURN:      PRRWLock*
+**   If the lock cannot be created because of resource constraints, NULL
+**   is returned.
+**
+***********************************************************************/
+NSPR_API(PRRWLock*) PR_NewRWLock(PRUint32 lock_rank, const char *lock_name);
+
+/***********************************************************************
+** FUNCTION:    PR_DestroyRWLock
+** DESCRIPTION:
+**  Destroys a given RW lock object.
+** INPUTS:      PRRWLock *lock - Lock to be freed.
+** OUTPUTS:     void
+** RETURN:      None
+***********************************************************************/
+NSPR_API(void) PR_DestroyRWLock(PRRWLock *lock);
+
+/***********************************************************************
+** FUNCTION:    PR_RWLock_Rlock
+** DESCRIPTION:
+**  Apply a read lock (non-exclusive) on a RWLock
+** INPUTS:      PRRWLock *lock - Lock to be read-locked.
+** OUTPUTS:     void
+** RETURN:      None
+***********************************************************************/
+NSPR_API(void) PR_RWLock_Rlock(PRRWLock *lock);
+
+/***********************************************************************
+** FUNCTION:    PR_RWLock_Wlock
+** DESCRIPTION:
+**  Apply a write lock (exclusive) on a RWLock
+** INPUTS:      PRRWLock *lock - Lock to write-locked.
+** OUTPUTS:     void
+** RETURN:      None
+***********************************************************************/
+NSPR_API(void) PR_RWLock_Wlock(PRRWLock *lock);
+
+/***********************************************************************
+** FUNCTION:    PR_RWLock_Unlock
+** DESCRIPTION:
+**  Release a RW lock. Unlocking an unlocked lock has undefined results.
+** INPUTS:      PRRWLock *lock - Lock to unlocked.
+** OUTPUTS:     void
+** RETURN:      void
+***********************************************************************/
+NSPR_API(void) PR_RWLock_Unlock(PRRWLock *lock);
+
+PR_END_EXTERN_C
+
+#endif /* prrwlock_h___ */
diff --git a/nsprpub/pr/include/prshm.h b/nsprpub/pr/include/prshm.h
new file mode 100644
index 0000000000..3588aed4e6
--- /dev/null
+++ b/nsprpub/pr/include/prshm.h
@@ -0,0 +1,257 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** prshm.h -- NSPR Shared Memory
+**
+** NSPR Named Shared Memory API provides a cross-platform named
+** shared-memory interface. NSPR Named Shared Memory is modeled on
+** similar constructs in Unix and Windows operating systems. Shared
+** memory allows multiple processes to access one or more common shared
+** memory regions, using it as an inter-process communication channel.
+**
+** Notes on Platform Independence:
+**   NSPR Named Shared Memory is built on the native services offered
+**   by most platforms. The NSPR Named Shared Memory API tries to
+**   provide a least common denominator interface so that it works
+**   across all supported platforms. To ensure that it works everywhere,
+**   some platform considerations must be accomodated and the protocol
+**   for using NSPR Shared Memory API must be observed.
+**
+** Protocol:
+**   Multiple shared memories can be created using NSPR's Shared Memory
+**   feature. For each named shared memory, as defined by the name
+**   given in the PR_OpenSharedMemory() call, a protocol for using the
+**   shared memory API is required to ensure desired behavior. Failing
+**   to follow the protocol may yield unpredictable results.
+**
+**   PR_OpenSharedMemory() will create the shared memory segment, if it
+**   does not already exist, or open a connection that the existing
+**   shared memory segment if it already exists.
+**
+**   PR_AttachSharedMemory() should be called following
+**   PR_OpenSharedMemory() to map the memory segment to an address in
+**   the application's address space.
+**
+**   PR_AttachSharedMemory() may be called to re-map a shared memory
+**   segment after detaching the same PRSharedMemory object. Be
+**   sure to detach it when done.
+**
+**   PR_DetachSharedMemory() should be called to un-map the shared
+**   memory segment from the application's address space.
+**
+**   PR_CloseSharedMemory() should be called when no further use of the
+**   PRSharedMemory object is required within a process. Following a
+**   call to  PR_CloseSharedMemory() the PRSharedMemory object is
+**   invalid and cannot be reused.
+**
+**   PR_DeleteSharedMemory() should be called before process
+**   termination. After calling PR_DeleteSharedMemory() any further use
+**   of the shared memory associated with the name may cause
+**   unpredictable results.
+**
+** Files:
+**   The name passed to PR_OpenSharedMemory() should be a valid filename
+**   for a unix platform. PR_OpenSharedMemory() creates file using the
+**   name passed in. Some platforms may mangle the name before creating
+**   the file and the shared memory.
+**
+**   The unix implementation may use SysV IPC shared memory, Posix
+**   shared memory, or memory mapped files; the filename may used to
+**   define the namespace. On Windows, the name is significant, but
+**   there is no file associated with name.
+**
+**   No assumptions about the persistence of data in the named file
+**   should be made. Depending on platform, the shared memory may be
+**   mapped onto system paging space and be discarded at process
+**   termination.
+**
+**   All names provided to PR_OpenSharedMemory() should be valid
+**   filename syntax or name syntax for shared memory for the target
+**   platform. Referenced directories should have permissions
+**   appropriate for writing.
+**
+** Limits:
+**   Different platforms have limits on both the number and size of
+**   shared memory resources. The default system limits on some
+**   platforms may be smaller than your requirements. These limits may
+**   be adjusted on some platforms either via boot-time options or by
+**   setting the size of the system paging space to accomodate more
+**   and/or larger shared memory segment(s).
+**
+** Security:
+**   On unix platforms, depending on implementation, contents of the
+**   backing store for the shared memory can be exposed via the file
+**   system. Set permissions and or access controls at create and attach
+**   time to ensure you get the desired security.
+**
+**   On windows platforms, no special security measures are provided.
+**
+** Example:
+**   The test case pr/tests/nameshm1.c provides an example of use as
+**   well as testing the operation of NSPR's Named Shared Memory.
+**
+** lth. 18-Aug-1999.
+*/
+
+#ifndef prshm_h___
+#define prshm_h___
+
+#include "prtypes.h"
+#include "prio.h"
+
+PR_BEGIN_EXTERN_C
+
+/*
+** Declare opaque type PRSharedMemory.
+*/
+typedef struct PRSharedMemory PRSharedMemory;
+
+/*
+** FUNCTION: PR_OpenSharedMemory()
+**
+** DESCRIPTION:
+**   PR_OpenSharedMemory() creates a new shared-memory segment or
+**   associates a previously created memory segment with name.
+**
+**   When parameter create is (PR_SHM_EXCL | PR_SHM_CREATE) and the
+**   shared memory already exists, the function returns NULL with the
+**   error set to PR_FILE_EXISTS_ERROR.
+**
+**   When parameter create is PR_SHM_CREATE and the shared memory
+**   already exists, a handle to that memory segment is returned. If
+**   the segment does not exist, it is created and a pointer to the
+**   related PRSharedMemory structure is returned.
+**
+**   When parameter create is 0, and the shared memory exists, a
+**   pointer to a PRSharedMemory is returned. If the shared memory does
+**   not exist, NULL is returned with the error set to
+**   PR_FILE_NOT_FOUND_ERROR.
+**
+** INPUTS:
+**   name -- the name the shared-memory segment is known as.
+**   size -- the size of the shared memory segment.
+**   flags -- Options for creating the shared memory
+**   mode -- Same as is passed to PR_Open()
+**
+** OUTPUTS:
+**   The shared memory is allocated.
+**
+** RETURNS: Pointer to opaque structure PRSharedMemory or NULL.
+**   NULL is returned on error. The reason for the error can be
+**   retrieved via PR_GetError() and PR_GetOSError();
+**
+*/
+NSPR_API( PRSharedMemory * )
+PR_OpenSharedMemory(
+    const char *name,
+    PRSize      size,
+    PRIntn      flags,
+    PRIntn      mode
+);
+/* Define values for PR_OpenShareMemory(...,create) */
+#define PR_SHM_CREATE 0x1  /* create if not exist */
+#define PR_SHM_EXCL   0x2  /* fail if already exists */
+
+/*
+** FUNCTION: PR_AttachSharedMemory()
+**
+** DESCRIPTION:
+** PR_AttachSharedMemory() maps the shared-memory described by
+** shm to the current process.
+**
+** INPUTS:
+**   shm -- The handle returned from PR_OpenSharedMemory().
+**   flags -- options for mapping the shared memory.
+**   PR_SHM_READONLY causes the memory to be attached
+**   read-only.
+**
+** OUTPUTS:
+**   On success, the shared memory segment represented by shm is mapped
+**   into the process' address space.
+**
+** RETURNS: Address where shared memory is mapped, or NULL.
+**   NULL is returned on error. The reason for the error can be
+**   retrieved via PR_GetError() and PR_GetOSError();
+**
+**
+*/
+NSPR_API( void * )
+PR_AttachSharedMemory(
+    PRSharedMemory *shm,
+    PRIntn  flags
+);
+/* Define values for PR_AttachSharedMemory(...,flags) */
+#define PR_SHM_READONLY 0x01
+
+/*
+** FUNCTION: PR_DetachSharedMemory()
+**
+** DESCRIPTION:
+**   PR_DetachSharedMemory() detaches the shared-memory described
+**   by shm.
+**
+** INPUTS:
+**   shm -- The handle returned from PR_OpenSharedMemory().
+**   addr -- The address at which the memory was attached.
+**
+** OUTPUTS:
+**   The shared memory mapped to an address via a previous call to
+**   PR_AttachSharedMemory() is unmapped.
+**
+** RETURNS: PRStatus
+**
+*/
+NSPR_API( PRStatus )
+PR_DetachSharedMemory(
+    PRSharedMemory *shm,
+    void  *addr
+);
+
+/*
+** FUNCTION: PR_CloseSharedMemory()
+**
+** DESCRIPTION:
+**   PR_CloseSharedMemory() closes the shared-memory described by
+**   shm.
+**
+** INPUTS:
+**   shm -- The handle returned from PR_OpenSharedMemory().
+**
+** OUTPUTS:
+**   the shared memory represented by shm is closed
+**
+** RETURNS: PRStatus
+**
+*/
+NSPR_API( PRStatus )
+PR_CloseSharedMemory(
+    PRSharedMemory *shm
+);
+
+/*
+** FUNCTION: PR_DeleteSharedMemory()
+**
+** DESCRIPTION:
+**   The shared memory resource represented by name is released.
+**
+** INPUTS:
+**   name -- the name the shared-memory segment
+**
+** OUTPUTS:
+**   depending on platform, resources may be returned to the underlying
+**   operating system.
+**
+** RETURNS: PRStatus
+**
+*/
+NSPR_API( PRStatus )
+PR_DeleteSharedMemory(
+    const char *name
+);
+
+PR_END_EXTERN_C
+
+#endif /* prshm_h___ */
diff --git a/nsprpub/pr/include/prshma.h b/nsprpub/pr/include/prshma.h
new file mode 100644
index 0000000000..2a1990ad6b
--- /dev/null
+++ b/nsprpub/pr/include/prshma.h
@@ -0,0 +1,239 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** prshma.h -- NSPR Anonymous Shared Memory
+**
+** NSPR provides an anonymous shared memory based on NSPR's PRFileMap
+** type. The anonymous file-mapped shared memory provides an inheritable
+** shared memory, as in: the child process inherits the shared memory.
+** Compare the file-mapped anonymous shared memory to to a named shared
+** memory described in prshm.h. The intent is to provide a shared
+** memory that is accessable only by parent and child processes. ...
+** It's a security thing.
+**
+** Depending on the underlying platform, the file-mapped shared memory
+** may be backed by a file. ... surprise! ... On some platforms, no
+** real file backs the shared memory. On platforms where the shared
+** memory is backed by a file, the file's name in the filesystem is
+** visible to other processes for only the duration of the creation of
+** the file, hopefully a very short time. This restricts processess
+** that do not inherit the shared memory from opening the file and
+** reading or writing its contents. Further, when all processes
+** using an anonymous shared memory terminate, the backing file is
+** deleted. ... If you are not paranoid, you're not paying attention.
+**
+** The file-mapped shared memory requires a protocol for the parent
+** process and child process to share the memory. NSPR provides two
+** protocols. Use one or the other; don't mix and match.
+**
+** In the first protocol, the job of passing the inheritable shared
+** memory is done via helper-functions with PR_CreateProcess(). In the
+** second protocol, the parent process is responsible for creating the
+** child process; the parent and child are mutually responsible for
+** passing a FileMap string. NSPR provides helper functions for
+** extracting data from the PRFileMap object. ... See the examples
+** below.
+**
+** Both sides should adhere strictly to the protocol for proper
+** operation. The pseudo-code below shows the use of a file-mapped
+** shared memory by a parent and child processes. In the examples, the
+** server creates the file-mapped shared memory, the client attaches to
+** it.
+**
+** First protocol.
+** Server:
+**
+**   fm = PR_OpenAnonFileMap(dirName, size, FilemapProt);
+**   addr = PR_MemMap(fm);
+**   attr = PR_NewProcessAttr();
+**   PR_ProcessAttrSetInheritableFileMap( attr, fm, shmname );
+**   PR_CreateProcess(Client);
+**   PR_DestroyProcessAttr(attr);
+**   ... yadda ...
+**   PR_MemUnmap( addr );
+**   PR_CloseFileMap(fm);
+**
+**
+** Client:
+**   ... started by server via PR_CreateProcess()
+**   fm = PR_GetInheritedFileMap( shmname );
+**   addr = PR_MemMap(fm);
+**   ... yadda ...
+**   PR_MemUnmap(addr);
+**   PR_CloseFileMap(fm);
+**
+**
+** Second Protocol:
+** Server:
+**
+**   fm = PR_OpenAnonFileMap(dirName, size, FilemapProt);
+**   fmstring = PR_ExportFileMapAsString( fm );
+**   addr = PR_MemMap(fm);
+**    ... application specific technique to pass fmstring to child
+**    ... yadda ... Server uses his own magic to create child
+**   PR_MemUnmap( addr );
+**   PR_CloseFileMap(fm);
+**
+**
+** Client:
+**   ... started by server via his own magic
+**   ... application specific technique to find fmstring from parent
+**   fm = PR_ImportFileMapFromString( fmstring )
+**   addr = PR_MemMap(fm);
+**   ... yadda ...
+**   PR_MemUnmap(addr);
+**   PR_CloseFileMap(fm);
+**
+**
+** lth. 2-Jul-1999.
+**
+** Note: The second protocol was requested by NelsonB (7/1999); this is
+** to accomodate servers which already create their own child processes
+** using platform native methods.
+**
+*/
+
+#ifndef prshma_h___
+#define prshma_h___
+
+#include "prtypes.h"
+#include "prio.h"
+#include "prproces.h"
+
+PR_BEGIN_EXTERN_C
+
+/*
+** PR_OpenAnonFileMap() -- Creates an anonymous file-mapped shared memory
+**
+** Description:
+** PR_OpenAnonFileMap() creates an anonymous shared memory. If the
+** shared memory already exists, a handle is returned to that shared
+** memory object.
+**
+** On Unix platforms, PR_OpenAnonFileMap() uses 'dirName' as a
+** directory name, without the trailing '/', to contain the anonymous
+** file. A filename is generated for the name.
+**
+** On Windows platforms, dirName is ignored.
+**
+** Inputs:
+**   dirName -- A directory name to contain the anonymous file.
+**   size -- The size of the shared memory
+**   prot -- How the shared memory is mapped. See prio.h
+**
+** Outputs:
+**   PRFileMap *
+**
+** Returns:
+**   Pointer to PRFileMap or NULL on error.
+**
+*/
+NSPR_API( PRFileMap *)
+PR_OpenAnonFileMap(
+    const char *dirName,
+    PRSize      size,
+    PRFileMapProtect prot
+);
+
+/*
+** PR_ProcessAttrSetInheritableFileMap() -- Prepare FileMap for export
+**   to my children processes via PR_CreateProcess()
+**
+** Description:
+** PR_ProcessAttrSetInheritableFileMap() connects the PRFileMap to
+** PRProcessAttr with shmname. A subsequent call to PR_CreateProcess()
+** makes the PRFileMap importable by the child process.
+**
+** Inputs:
+**   attr -- PRProcessAttr, used to pass data to PR_CreateProcess()
+**   fm -- PRFileMap structure to be passed to the child process
+**   shmname -- The name for the PRFileMap; used by child.
+**
+** Outputs:
+**   PRFileMap *
+**
+** Returns:
+**   PRStatus
+**
+*/
+NSPR_API(PRStatus)
+PR_ProcessAttrSetInheritableFileMap(
+    PRProcessAttr   *attr,
+    PRFileMap       *fm,
+    const char      *shmname
+);
+
+/*
+** PR_GetInheritedFileMap() -- Import a PRFileMap previously exported
+**   by my parent process via PR_CreateProcess()
+**
+** Description:
+** PR_GetInheritedFileMap() retrieves a PRFileMap object exported from
+** its parent process via PR_CreateProcess().
+**
+** Inputs:
+**    shmname -- The name provided to PR_ProcessAttrSetInheritableFileMap()
+**
+** Outputs:
+**   PRFileMap *
+**
+** Returns:
+**   PRFileMap pointer or NULL.
+**
+*/
+NSPR_API( PRFileMap *)
+PR_GetInheritedFileMap(
+    const char *shmname
+);
+
+/*
+** PR_ExportFileMapAsString() -- Creates a string identifying a PRFileMap
+**
+** Description:
+** Creates an identifier, as a string, from a PRFileMap object
+** previously created with PR_OpenAnonFileMap().
+**
+** Inputs:
+**   fm -- PRFileMap pointer to be represented as a string.
+**   bufsize -- sizeof(buf)
+**   buf -- a buffer of length PR_FILEMAP_STRING_BUFSIZE
+**
+** Outputs:
+**   buf contains the stringized PRFileMap identifier
+**
+** Returns:
+**   PRStatus
+**
+*/
+NSPR_API( PRStatus )
+PR_ExportFileMapAsString(
+    PRFileMap *fm,
+    PRSize    bufsize,
+    char      *buf
+);
+#define PR_FILEMAP_STRING_BUFSIZE 128
+
+/*
+** PR_ImportFileMapFromString() -- Creates a PRFileMap from the identifying string
+**
+** Description:
+** PR_ImportFileMapFromString() creates a PRFileMap object from a
+** string previously created by PR_ExportFileMapAsString().
+**
+** Inputs:
+**   fmstring -- string created by PR_ExportFileMapAsString()
+**
+** Returns:
+**   PRFileMap pointer or NULL.
+**
+*/
+NSPR_API( PRFileMap * )
+PR_ImportFileMapFromString(
+    const char *fmstring
+);
+
+PR_END_EXTERN_C
+#endif /* prshma_h___ */
diff --git a/nsprpub/pr/include/prsystem.h b/nsprpub/pr/include/prsystem.h
new file mode 100644
index 0000000000..577e60e061
--- /dev/null
+++ b/nsprpub/pr/include/prsystem.h
@@ -0,0 +1,109 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prsystem_h___
+#define prsystem_h___
+
+/*
+** API to NSPR functions returning system info.
+*/
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+/*
+** Get the host' directory separator.
+**  Pathnames are then assumed to be of the form:
+**      [<sep><root_component><sep>]*(<component><sep>)<leaf_name>
+*/
+
+NSPR_API(char) PR_GetDirectorySeparator(void);
+
+/*
+** OBSOLETE -- the function name is misspelled.
+** Use PR_GetDirectorySeparator instead.
+*/
+
+NSPR_API(char) PR_GetDirectorySepartor(void);
+
+/*
+** Get the host' path separator.
+**  Paths are assumed to be of the form:
+**      <directory>[<sep><directory>]*
+*/
+
+NSPR_API(char) PR_GetPathSeparator(void);
+
+/* Types of information available via PR_GetSystemInfo(...) */
+typedef enum {
+    PR_SI_HOSTNAME,  /* the hostname with the domain name (if any)
+                      * removed */
+    PR_SI_SYSNAME,
+    PR_SI_RELEASE,
+    PR_SI_ARCHITECTURE,
+    PR_SI_HOSTNAME_UNTRUNCATED, /* the hostname exactly as configured
+                                 * on the system */
+    PR_SI_RELEASE_BUILD
+} PRSysInfo;
+
+
+/*
+** If successful returns a null termintated string in 'buf' for
+** the information indicated in 'cmd'. If unseccussful the reason for
+** the failure can be retrieved from PR_GetError().
+**
+** The buffer is allocated by the caller and should be at least
+** SYS_INFO_BUFFER_LENGTH bytes in length.
+*/
+
+#define SYS_INFO_BUFFER_LENGTH 256
+
+NSPR_API(PRStatus) PR_GetSystemInfo(PRSysInfo cmd, char *buf, PRUint32 buflen);
+
+/*
+** Return the number of bytes in a page
+*/
+NSPR_API(PRInt32) PR_GetPageSize(void);
+
+/*
+** Return log2 of the size of a page
+*/
+NSPR_API(PRInt32) PR_GetPageShift(void);
+
+/*
+** PR_GetNumberOfProcessors() -- returns the number of CPUs
+**
+** Description:
+** PR_GetNumberOfProcessors() extracts the number of processors
+** (CPUs available in an SMP system) and returns the number.
+**
+** Parameters:
+**   none
+**
+** Returns:
+**   The number of available processors or -1 on error
+**
+*/
+NSPR_API(PRInt32) PR_GetNumberOfProcessors( void );
+
+/*
+** PR_GetPhysicalMemorySize() -- returns the amount of system RAM
+**
+** Description:
+** PR_GetPhysicalMemorySize() determines the amount of physical RAM
+** in the system and returns the size in bytes.
+**
+** Parameters:
+**   none
+**
+** Returns:
+**   The amount of system RAM, or 0 on failure.
+**
+*/
+NSPR_API(PRUint64) PR_GetPhysicalMemorySize(void);
+
+PR_END_EXTERN_C
+
+#endif /* prsystem_h___ */
diff --git a/nsprpub/pr/include/prthread.h b/nsprpub/pr/include/prthread.h
new file mode 100644
index 0000000000..cacd3891bf
--- /dev/null
+++ b/nsprpub/pr/include/prthread.h
@@ -0,0 +1,272 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prthread_h___
+#define prthread_h___
+
+/*
+** API for NSPR threads. On some architectures (Mac OS Classic
+** notably) pre-emptibility is not guaranteed. Hard priority scheduling
+** is not guaranteed, so programming using priority based synchronization
+** is a no-no.
+**
+** NSPR threads are scheduled based loosely on their client set priority.
+** In general, a thread of a higher priority has a statistically better
+** chance of running relative to threads of lower priority. However,
+** NSPR uses multiple strategies to provide execution vehicles for thread
+** abstraction of various host platforms. As it turns out, there is little
+** NSPR can do to affect the scheduling attributes of "GLOBAL" threads.
+** However, a semblance of GLOBAL threads is used to implement "LOCAL"
+** threads. An arbitrary number of such LOCAL threads can be assigned to
+** a single GLOBAL thread.
+**
+** For scheduling, NSPR will attempt to run the highest priority LOCAL
+** thread associated with a given GLOBAL thread. It is further assumed
+** that the host OS will apply some form of "fair" scheduling on the
+** GLOBAL threads.
+**
+** Threads have a "system flag" which when set indicates the thread
+** doesn't count for determining when the process should exit (the
+** process exits when the last user thread exits).
+**
+** Threads also have a "scope flag" which controls whether the threads
+** are scheduled in the local scope or scheduled by the OS globally. This
+** indicates whether a thread is permanently bound to a native OS thread.
+** An unbound thread competes for scheduling resources in the same process.
+**
+** Another flag is "state flag" which control whether the thread is joinable.
+** It allows other threads to wait for the created thread to reach completion.
+**
+** Threads can have "per-thread-data" attached to them. Each thread has a
+** per-thread error number and error string which are updated when NSPR
+** operations fail.
+*/
+#include "prtypes.h"
+#include "prinrval.h"
+
+PR_BEGIN_EXTERN_C
+
+typedef struct PRThread PRThread;
+typedef struct PRThreadStack PRThreadStack;
+
+typedef enum PRThreadType {
+    PR_USER_THREAD,
+    PR_SYSTEM_THREAD
+} PRThreadType;
+
+typedef enum PRThreadScope {
+    PR_LOCAL_THREAD,
+    PR_GLOBAL_THREAD,
+    PR_GLOBAL_BOUND_THREAD
+} PRThreadScope;
+
+typedef enum PRThreadState {
+    PR_JOINABLE_THREAD,
+    PR_UNJOINABLE_THREAD
+} PRThreadState;
+
+typedef enum PRThreadPriority
+{
+    PR_PRIORITY_FIRST = 0,      /* just a placeholder */
+    PR_PRIORITY_LOW = 0,        /* the lowest possible priority */
+    PR_PRIORITY_NORMAL = 1,     /* most common expected priority */
+    PR_PRIORITY_HIGH = 2,       /* slightly more aggressive scheduling */
+    PR_PRIORITY_URGENT = 3,     /* it does little good to have more than one */
+    PR_PRIORITY_LAST = 3        /* this is just a placeholder */
+} PRThreadPriority;
+
+/*
+** Create a new thread:
+**     "type" is the type of thread to create
+**     "start(arg)" will be invoked as the threads "main"
+**     "priority" will be created thread's priority
+**     "scope" will specify whether the thread is local or global
+**     "state" will specify whether the thread is joinable or not
+**     "stackSize" the size of the stack, in bytes. The value can be zero
+**        and then a machine specific stack size will be chosen.
+**
+** This can return NULL if some kind of error occurs, such as if memory is
+** tight.
+**
+** If you want the thread to start up waiting for the creator to do
+** something, enter a lock before creating the thread and then have the
+** threads start routine enter and exit the same lock. When you are ready
+** for the thread to run, exit the lock.
+**
+** If you want to detect the completion of the created thread, the thread
+** should be created joinable.  Then, use PR_JoinThread to synchrnoize the
+** termination of another thread.
+**
+** When the start function returns the thread exits. If it is the last
+** PR_USER_THREAD to exit then the process exits.
+*/
+NSPR_API(PRThread*) PR_CreateThread(PRThreadType type,
+                                    void (PR_CALLBACK *start)(void *arg),
+                                    void *arg,
+                                    PRThreadPriority priority,
+                                    PRThreadScope scope,
+                                    PRThreadState state,
+                                    PRUint32 stackSize);
+
+/*
+** Wait for thread termination:
+**     "thread" is the target thread
+**
+** This can return PR_FAILURE if no joinable thread could be found
+** corresponding to the specified target thread.
+**
+** The calling thread is blocked until the target thread completes.
+** Several threads cannot wait for the same thread to complete; one thread
+** will operate successfully and others will terminate with an error PR_FAILURE.
+** The calling thread will not be blocked if the target thread has already
+** terminated.
+*/
+NSPR_API(PRStatus) PR_JoinThread(PRThread *thread);
+
+/*
+** Return the current thread object for the currently running code.
+** Never returns NULL.
+*/
+NSPR_API(PRThread*) PR_GetCurrentThread(void);
+#ifndef NO_NSPR_10_SUPPORT
+#define PR_CurrentThread() PR_GetCurrentThread() /* for nspr1.0 compat. */
+#endif /* NO_NSPR_10_SUPPORT */
+
+/*
+** Get the priority of "thread".
+*/
+NSPR_API(PRThreadPriority) PR_GetThreadPriority(const PRThread *thread);
+
+/*
+** Change the priority of the "thread" to "priority".
+**
+** PR_SetThreadPriority works in a best-effort manner. On some platforms a
+** special privilege, such as root access, is required to change thread
+** priorities, especially to raise thread priorities. If the caller doesn't
+** have enough privileges to change thread priorites, the function has no
+** effect except causing a future PR_GetThreadPriority call to return
+** |priority|.
+*/
+NSPR_API(void) PR_SetThreadPriority(PRThread *thread, PRThreadPriority priority);
+
+/*
+** Set the name of the current thread, which will be visible in a debugger
+** and accessible via a call to PR_GetThreadName().
+*/
+NSPR_API(PRStatus) PR_SetCurrentThreadName(const char *name);
+
+/*
+** Return the name of "thread", if set.  Otherwise return NULL.
+*/
+NSPR_API(const char *) PR_GetThreadName(const PRThread *thread);
+
+/*
+** This routine returns a new index for per-thread-private data table.
+** The index is visible to all threads within a process. This index can
+** be used with the PR_SetThreadPrivate() and PR_GetThreadPrivate() routines
+** to save and retrieve data associated with the index for a thread.
+**
+** Each index is associationed with a destructor function ('dtor'). The function
+** may be specified as NULL when the index is created. If it is not NULL, the
+** function will be called when:
+**      - the thread exits and the private data for the associated index
+**        is not NULL,
+**      - new thread private data is set and the current private data is
+**        not NULL.
+**
+** The index independently maintains specific values for each binding thread.
+** A thread can only get access to its own thread-specific-data.
+**
+** Upon a new index return the value associated with the index for all threads
+** is NULL, and upon thread creation the value associated with all indices for
+** that thread is NULL.
+**
+** Returns PR_FAILURE if the total number of indices will exceed the maximun
+** allowed.
+*/
+typedef void (PR_CALLBACK *PRThreadPrivateDTOR)(void *priv);
+
+NSPR_API(PRStatus) PR_NewThreadPrivateIndex(
+    PRUintn *newIndex, PRThreadPrivateDTOR destructor);
+
+/*
+** Define some per-thread-private data.
+**     "tpdIndex" is an index into the per-thread private data table
+**     "priv" is the per-thread-private data
+**
+** If the per-thread private data table has a previously registered
+** destructor function and a non-NULL per-thread-private data value,
+** the destructor function is invoked.
+**
+** This can return PR_FAILURE if the index is invalid.
+*/
+NSPR_API(PRStatus) PR_SetThreadPrivate(PRUintn tpdIndex, void *priv);
+
+/*
+** Recover the per-thread-private data for the current thread. "tpdIndex" is
+** the index into the per-thread private data table.
+**
+** The returned value may be NULL which is indistinguishable from an error
+** condition.
+**
+** A thread can only get access to its own thread-specific-data.
+*/
+NSPR_API(void*) PR_GetThreadPrivate(PRUintn tpdIndex);
+
+/*
+** This routine sets the interrupt request for a target thread. The interrupt
+** request remains in the thread's state until it is delivered exactly once
+** or explicitly canceled.
+**
+** A thread that has been interrupted will fail all NSPR blocking operations
+** that return a PRStatus (I/O, waiting on a condition, etc).
+**
+** PR_Interrupt may itself fail if the target thread is invalid.
+*/
+NSPR_API(PRStatus) PR_Interrupt(PRThread *thread);
+
+/*
+** Clear the interrupt request for the calling thread. If no such request
+** is pending, this operation is a noop.
+*/
+NSPR_API(void) PR_ClearInterrupt(void);
+
+/*
+** Block the interrupt for the calling thread.
+*/
+NSPR_API(void) PR_BlockInterrupt(void);
+
+/*
+** Unblock the interrupt for the calling thread.
+*/
+NSPR_API(void) PR_UnblockInterrupt(void);
+
+/*
+** Make the current thread sleep until "ticks" time amount of time
+** has expired. If "ticks" is PR_INTERVAL_NO_WAIT then the call is
+** equivalent to calling PR_Yield. Calling PR_Sleep with an argument
+** equivalent to PR_INTERVAL_NO_TIMEOUT is an error and will result
+** in a PR_FAILURE error return.
+*/
+NSPR_API(PRStatus) PR_Sleep(PRIntervalTime ticks);
+
+/*
+** Get the scoping of this thread.
+*/
+NSPR_API(PRThreadScope) PR_GetThreadScope(const PRThread *thread);
+
+/*
+** Get the type of this thread.
+*/
+NSPR_API(PRThreadType) PR_GetThreadType(const PRThread *thread);
+
+/*
+** Get the join state of this thread.
+*/
+NSPR_API(PRThreadState) PR_GetThreadState(const PRThread *thread);
+
+PR_END_EXTERN_C
+
+#endif /* prthread_h___ */
diff --git a/nsprpub/pr/include/prtime.h b/nsprpub/pr/include/prtime.h
new file mode 100644
index 0000000000..917a16159d
--- /dev/null
+++ b/nsprpub/pr/include/prtime.h
@@ -0,0 +1,262 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * prtime.h --
+ *
+ *     NSPR date and time functions
+ *
+ *-----------------------------------------------------------------------
+ */
+
+#ifndef prtime_h___
+#define prtime_h___
+
+#include "prlong.h"
+
+PR_BEGIN_EXTERN_C
+
+/**********************************************************************/
+/************************* TYPES AND CONSTANTS ************************/
+/**********************************************************************/
+
+#define PR_MSEC_PER_SEC     1000L
+#define PR_USEC_PER_SEC     1000000L
+#define PR_NSEC_PER_SEC     1000000000L
+#define PR_USEC_PER_MSEC    1000L
+#define PR_NSEC_PER_MSEC    1000000L
+
+/*
+ * PRTime --
+ *
+ *     NSPR represents basic time as 64-bit signed integers relative
+ *     to midnight (00:00:00), January 1, 1970 Greenwich Mean Time (GMT).
+ *     (GMT is also known as Coordinated Universal Time, UTC.)
+ *     The units of time are in microseconds. Negative times are allowed
+ *     to represent times prior to the January 1970 epoch. Such values are
+ *     intended to be exported to other systems or converted to human
+ *     readable form.
+ *
+ *     Notes on porting: PRTime corresponds to time_t in ANSI C.  NSPR 1.0
+ *     simply uses PRInt64.
+ */
+
+typedef PRInt64 PRTime;
+
+/*
+ * Time zone and daylight saving time corrections applied to GMT to
+ * obtain the local time of some geographic location
+ */
+
+typedef struct PRTimeParameters {
+    PRInt32 tp_gmt_offset;     /* the offset from GMT in seconds */
+    PRInt32 tp_dst_offset;     /* contribution of DST in seconds */
+} PRTimeParameters;
+
+/*
+ * PRExplodedTime --
+ *
+ *     Time broken down into human-readable components such as year, month,
+ *     day, hour, minute, second, and microsecond.  Time zone and daylight
+ *     saving time corrections may be applied.  If they are applied, the
+ *     offsets from the GMT must be saved in the 'tm_params' field so that
+ *     all the information is available to reconstruct GMT.
+ *
+ *     Notes on porting: PRExplodedTime corrresponds to struct tm in
+ *     ANSI C, with the following differences:
+ *       - an additional field tm_usec;
+ *       - replacing tm_isdst by tm_params;
+ *       - the month field is spelled tm_month, not tm_mon;
+ *       - we use absolute year, AD, not the year since 1900.
+ *     The corresponding type in NSPR 1.0 is called PRTime.  Below is
+ *     a table of date/time type correspondence in the three APIs:
+ *         API          time since epoch          time in components
+ *       ANSI C             time_t                  struct tm
+ *       NSPR 1.0           PRInt64                   PRTime
+ *       NSPR 2.0           PRTime                  PRExplodedTime
+ */
+
+typedef struct PRExplodedTime {
+    PRInt32 tm_usec;            /* microseconds past tm_sec (0-99999)  */
+    PRInt32 tm_sec;             /* seconds past tm_min (0-61, accomodating
+                                   up to two leap seconds) */
+    PRInt32 tm_min;             /* minutes past tm_hour (0-59) */
+    PRInt32 tm_hour;            /* hours past tm_day (0-23) */
+    PRInt32 tm_mday;            /* days past tm_mon (1-31, note that it
+                                starts from 1) */
+    PRInt32 tm_month;           /* months past tm_year (0-11, Jan = 0) */
+    PRInt16 tm_year;            /* absolute year, AD (note that we do not
+                                count from 1900) */
+
+    PRInt8 tm_wday;             /* calculated day of the week
+                                (0-6, Sun = 0) */
+    PRInt16 tm_yday;            /* calculated day of the year
+                                (0-365, Jan 1 = 0) */
+
+    PRTimeParameters tm_params;  /* time parameters used by conversion */
+} PRExplodedTime;
+
+/*
+ * PRTimeParamFn --
+ *
+ *     A function of PRTimeParamFn type returns the time zone and
+ *     daylight saving time corrections for some geographic location,
+ *     given the current time in GMT.  The input argument gmt should
+ *     point to a PRExplodedTime that is in GMT, i.e., whose
+ *     tm_params contains all 0's.
+ *
+ *     For any time zone other than GMT, the computation is intended to
+ *     consist of two steps:
+ *       - Figure out the time zone correction, tp_gmt_offset.  This number
+ *         usually depends on the geographic location only.  But it may
+ *         also depend on the current time.  For example, all of China
+ *         is one time zone right now.  But this situation may change
+ *         in the future.
+ *       - Figure out the daylight saving time correction, tp_dst_offset.
+ *         This number depends on both the geographic location and the
+ *         current time.  Most of the DST rules are expressed in local
+ *         current time.  If so, one should apply the time zone correction
+ *         to GMT before applying the DST rules.
+ */
+
+typedef PRTimeParameters (PR_CALLBACK *PRTimeParamFn)(const PRExplodedTime *gmt);
+
+/**********************************************************************/
+/****************************** FUNCTIONS *****************************/
+/**********************************************************************/
+
+/*
+ * The PR_Now routine returns the current time relative to the
+ * epoch, midnight, January 1, 1970 UTC. The units of the returned
+ * value are microseconds since the epoch.
+ *
+ * The values returned are not guaranteed to advance in a linear fashion
+ * due to the application of time correction protocols which synchronize
+ * computer clocks to some external time source. Consequently it should
+ * not be depended on for interval timing.
+ *
+ * The implementation is machine dependent.
+ * Cf. time_t time(time_t *tp) in ANSI C.
+ */
+NSPR_API(PRTime)
+PR_Now(void);
+
+/*
+ * Expand time binding it to time parameters provided by PRTimeParamFn.
+ * The calculation is envisoned to proceed in the following steps:
+ *   - From given PRTime, calculate PRExplodedTime in GMT
+ *   - Apply the given PRTimeParamFn to the GMT that we just calculated
+ *     to obtain PRTimeParameters.
+ *   - Add the PRTimeParameters offsets to GMT to get the local time
+ *     as PRExplodedTime.
+ */
+
+NSPR_API(void) PR_ExplodeTime(
+    PRTime usecs, PRTimeParamFn params, PRExplodedTime *exploded);
+
+/* Reverse operation of PR_ExplodeTime */
+NSPR_API(PRTime)
+PR_ImplodeTime(const PRExplodedTime *exploded);
+
+/*
+ * Adjust exploded time to normalize field overflows after manipulation.
+ * Note that the following fields of PRExplodedTime should not be
+ * manipulated:
+ *   - tm_month and tm_year: because the number of days in a month and
+ *     number of days in a year are not constant, it is ambiguous to
+ *     manipulate the month and year fields, although one may be tempted
+ *     to.  For example, what does "a month from January 31st" mean?
+ *   - tm_wday and tm_yday: these fields are calculated by NSPR.  Users
+ *     should treat them as "read-only".
+ */
+
+NSPR_API(void) PR_NormalizeTime(
+    PRExplodedTime *exploded, PRTimeParamFn params);
+
+/**********************************************************************/
+/*********************** TIME PARAMETER FUNCTIONS *********************/
+/**********************************************************************/
+
+/* Time parameters that suit current host machine */
+NSPR_API(PRTimeParameters) PR_LocalTimeParameters(const PRExplodedTime *gmt);
+
+/* Time parameters that represent Greenwich Mean Time */
+NSPR_API(PRTimeParameters) PR_GMTParameters(const PRExplodedTime *gmt);
+
+/*
+ * Time parameters that represent the US Pacific Time Zone, with the
+ * current daylight saving time rules (for testing only)
+ */
+NSPR_API(PRTimeParameters) PR_USPacificTimeParameters(const PRExplodedTime *gmt);
+
+/*
+ * This parses a time/date string into a PRExplodedTime
+ * struct. It populates all fields but it can't split
+ * the offset from UTC into tp_gmt_offset and tp_dst_offset in
+ * most cases (exceptions: PST/PDT, MST/MDT, CST/CDT, EST/EDT, GMT/BST).
+ * In those cases tp_gmt_offset will be the sum of these two and
+ * tp_dst_offset will be 0.
+ * It returns PR_SUCCESS on success, and PR_FAILURE
+ * if the time/date string can't be parsed.
+ *
+ * Many formats are handled, including:
+ *
+ *   14 Apr 89 03:20:12
+ *   14 Apr 89 03:20 GMT
+ *   Fri, 17 Mar 89 4:01:33
+ *   Fri, 17 Mar 89 4:01 GMT
+ *   Mon Jan 16 16:12 PDT 1989
+ *   Mon Jan 16 16:12 +0130 1989
+ *   6 May 1992 16:41-JST (Wednesday)
+ *   22-AUG-1993 10:59:12.82
+ *   22-AUG-1993 10:59pm
+ *   22-AUG-1993 12:59am
+ *   22-AUG-1993 12:59 PM
+ *   Friday, August 04, 1995 3:54 PM
+ *   06/21/95 04:24:34 PM
+ *   20/06/95 21:07
+ *   95-06-08 19:32:48 EDT
+ *
+ * If the input string doesn't contain a description of the timezone,
+ * we consult the `default_to_gmt' to decide whether the string should
+ * be interpreted relative to the local time zone (PR_FALSE) or GMT (PR_TRUE).
+ * The correct value for this argument depends on what standard specified
+ * the time string which you are parsing.
+ */
+
+NSPR_API(PRStatus) PR_ParseTimeStringToExplodedTime (
+    const char *string,
+    PRBool default_to_gmt,
+    PRExplodedTime *result);
+
+/*
+ * This uses PR_ParseTimeStringToExplodedTime to parse
+ * a time/date string and PR_ImplodeTime to transform it into
+ * a PRTime (microseconds after "1-Jan-1970 00:00:00 GMT").
+ * It returns PR_SUCCESS on success, and PR_FAILURE
+ * if the time/date string can't be parsed.
+ */
+
+NSPR_API(PRStatus) PR_ParseTimeString (
+    const char *string,
+    PRBool default_to_gmt,
+    PRTime *result);
+
+/* Format a time value into a buffer. Same semantics as strftime() */
+NSPR_API(PRUint32) PR_FormatTime(char *buf, int buflen, const char *fmt,
+                                 const PRExplodedTime *time);
+
+/* Format a time value into a buffer. Time is always in US English format,
+ * regardless of locale setting.
+ */
+NSPR_API(PRUint32)
+PR_FormatTimeUSEnglish(char *buf, PRUint32 bufSize,
+                       const char *format, const PRExplodedTime *time);
+
+PR_END_EXTERN_C
+
+#endif /* prtime_h___ */
diff --git a/nsprpub/pr/include/prtpool.h b/nsprpub/pr/include/prtpool.h
new file mode 100644
index 0000000000..b4d18d4152
--- /dev/null
+++ b/nsprpub/pr/include/prtpool.h
@@ -0,0 +1,83 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prtpool_h___
+#define prtpool_h___
+
+#include "prtypes.h"
+#include "prthread.h"
+#include "prio.h"
+#include "prerror.h"
+
+/*
+ * NOTE:
+ *      THIS API IS A PRELIMINARY VERSION IN NSPR 4.0 AND IS SUBJECT TO
+ *      CHANGE
+ */
+
+PR_BEGIN_EXTERN_C
+
+typedef struct PRJobIoDesc {
+    PRFileDesc *socket;
+    PRErrorCode error;
+    PRIntervalTime timeout;
+} PRJobIoDesc;
+
+typedef struct PRThreadPool PRThreadPool;
+typedef struct PRJob PRJob;
+typedef void (PR_CALLBACK *PRJobFn) (void *arg);
+
+/* Create thread pool */
+NSPR_API(PRThreadPool *)
+PR_CreateThreadPool(PRInt32 initial_threads, PRInt32 max_threads,
+                    PRUint32 stacksize);
+
+/* queue a job */
+NSPR_API(PRJob *)
+PR_QueueJob(PRThreadPool *tpool, PRJobFn fn, void *arg, PRBool joinable);
+
+/* queue a job, when a socket is readable */
+NSPR_API(PRJob *)
+PR_QueueJob_Read(PRThreadPool *tpool, PRJobIoDesc *iod,
+                 PRJobFn fn, void * arg, PRBool joinable);
+
+/* queue a job, when a socket is writeable */
+NSPR_API(PRJob *)
+PR_QueueJob_Write(PRThreadPool *tpool, PRJobIoDesc *iod,
+                  PRJobFn fn, void * arg, PRBool joinable);
+
+/* queue a job, when a socket has a pending connection */
+NSPR_API(PRJob *)
+PR_QueueJob_Accept(PRThreadPool *tpool, PRJobIoDesc *iod,
+                   PRJobFn fn, void * arg, PRBool joinable);
+
+/* queue a job, when the socket connection to addr succeeds or fails */
+NSPR_API(PRJob *)
+PR_QueueJob_Connect(PRThreadPool *tpool, PRJobIoDesc *iod,
+                    const PRNetAddr *addr, PRJobFn fn, void * arg, PRBool joinable);
+
+/* queue a job, when a timer exipres */
+NSPR_API(PRJob *)
+PR_QueueJob_Timer(PRThreadPool *tpool, PRIntervalTime timeout,
+                  PRJobFn fn, void * arg, PRBool joinable);
+/* cancel a job */
+NSPR_API(PRStatus)
+PR_CancelJob(PRJob *job);
+
+/* join a job */
+NSPR_API(PRStatus)
+PR_JoinJob(PRJob *job);
+
+/* shutdown pool */
+NSPR_API(PRStatus)
+PR_ShutdownThreadPool(PRThreadPool *tpool);
+
+/* join pool, wait for exit of all threads */
+NSPR_API(PRStatus)
+PR_JoinThreadPool(PRThreadPool *tpool);
+
+PR_END_EXTERN_C
+
+#endif /* prtpool_h___ */
diff --git a/nsprpub/pr/include/prtrace.h b/nsprpub/pr/include/prtrace.h
new file mode 100644
index 0000000000..49bd3edb74
--- /dev/null
+++ b/nsprpub/pr/include/prtrace.h
@@ -0,0 +1,646 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prtrace_h___
+#define prtrace_h___
+/*
+** prtrace.h -- NSPR's Trace Facility.
+**
+** The Trace Facility provides a means to trace application
+** program events within a process. When implementing an
+** application program an engineer may insert a "Trace" function
+** call, passing arguments to be traced. The "Trace" function
+** combines the user trace data with identifying data and
+** writes this data in time ordered sequence into a circular
+** in-memory buffer; when the buffer fills, it wraps.
+**
+** Functions are provided to set and/or re-configure the size of
+** the trace buffer, control what events are recorded in the
+** buffer, enable and disable tracing based on specific user
+** supplied data and other control functions. Methods are provided
+** to record the trace entries in the in-memory trace buffer to
+** a file.
+**
+** Tracing may cause a performance degredation to the application
+** depending on the number and placement of calls to the tracing
+** facility. When tracing is compiled in and all tracing is
+** disabled via the runtime controls, the overhead should be
+** minimal. ... Famous last words, eh?
+**
+** When DEBUG is defined at compile time, the Trace Facility is
+** compiled as part of NSPR and any application using NSPR's
+** header files will have tracing compiled in. When DEBUG is not
+** defined, the Trace Facility is not compiled into NSPR nor
+** exported in its header files.  If the Trace Facility is
+** desired in a non-debug build, then FORCE_NSPR_TRACE may be
+** defined at compile time for both the optimized build of NSPR
+** and the application. NSPR and any application using  NSPR's
+** Trace Facility must be compiled with the same level of trace
+** conditioning or unresolved references may be realized at link
+** time.
+**
+** For any of the Trace Facility methods that requires a trace
+** handle as an input argument, the caller must ensure that the
+** trace handle argument is valid. An invalid trace handle
+** argument may cause unpredictable results.
+**
+** Trace Facility methods are thread-safe and SMP safe.
+**
+** Users of the Trace Facility should use the defined macros to
+** invoke trace methods, not the function calls directly. e.g.
+** PR_TRACE( h1,0,1,2, ...); not PR_Trace(h1,0,1,2, ...);
+**
+** Application designers should be aware of the effects of
+** debug and optimized build differences when using result of the
+** Trace Facility macros in expressions.
+**
+** See Also: prcountr.h
+**
+** /lth. 08-Jun-1998.
+*/
+
+#include "prtypes.h"
+#include "prthread.h"
+#include "prtime.h"
+
+PR_BEGIN_EXTERN_C
+
+/*
+** Opaque type for the trace handle
+** ... Don't even think about looking in here.
+**
+*/
+typedef void *  PRTraceHandle;
+
+/*
+** PRTraceEntry -- A trace entry in the in-memory trace buffer
+** looks like this.
+**
+*/
+typedef struct PRTraceEntry
+{
+    PRThread        *thread;        /* The thread creating the trace entry */
+    PRTraceHandle   handle;         /* PRTraceHandle creating the trace entry */
+    PRTime          time;           /* Value of PR_Now() at time of trace entry */
+    PRUint32        userData[8];    /* user supplied trace data */
+} PRTraceEntry;
+
+/*
+** PRTraceOption -- command operands to
+** PR_[Set|Get]TraceOption(). See descriptive meanings there.
+**
+*/
+typedef enum PRTraceOption
+{
+    PRTraceBufSize,
+    PRTraceEnable,
+    PRTraceDisable,
+    PRTraceSuspend,
+    PRTraceResume,
+    PRTraceSuspendRecording,
+    PRTraceResumeRecording,
+    PRTraceLockHandles,
+    PRTraceUnLockHandles,
+    PRTraceStopRecording
+} PRTraceOption;
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_DEFINE_TRACE() -- Define a PRTraceHandle
+**
+** DESCRIPTION: PR_DEFINE_TRACE() is used to define a trace
+** handle.
+**
+*/
+#define PR_DEFINE_TRACE(name) PRTraceHandle name
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_INIT_TRACE_HANDLE() -- Set the value of a PRTraceHandle
+**
+** DESCRIPTION:
+** PR_INIT_TRACE_HANDLE() sets the value of a PRTraceHandle
+** to value. e.g. PR_INIT_TRACE_HANDLE( myHandle, NULL );
+**
+*/
+#if defined (DEBUG) || defined (FORCE_NSPR_TRACE)
+#define PR_INIT_TRACE_HANDLE(handle,value)\
+    (handle) = (PRCounterHandle)(value)
+#else
+#define PR_INIT_TRACE_HANDLE(handle,value)
+#endif
+
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_CreateTrace() -- Create a trace handle
+**
+** DESCRIPTION:
+**  PR_CreateTrace() creates a new trace handle. Tracing is
+**  enabled for this handle when it is created. The trace handle
+**  is intended for use in other Trace Facility calls.
+**
+**  PR_CreateTrace() registers the QName, RName and description
+**  data so that this data can be retrieved later.
+**
+** INPUTS:
+**  qName: pointer to string. QName for this trace handle.
+**
+**  rName: pointer to string. RName for this trace handle.
+**
+**  description: pointer to string. Descriptive data about this
+**  trace handle.
+**
+** OUTPUTS:
+**  Creates the trace handle.
+**  Registers the QName and RName with the trace facility.
+**
+** RETURNS:
+**  PRTraceHandle
+**
+** RESTRICTIONS:
+**  qName is limited to 31 characters.
+**  rName is limited to 31 characters.
+**  description is limited to 255 characters.
+**
+*/
+#define PRTRACE_NAME_MAX 31
+#define PRTRACE_DESC_MAX 255
+
+#if defined (DEBUG) || defined (FORCE_NSPR_TRACE)
+#define PR_CREATE_TRACE(handle,qName,rName,description)\
+    (handle) = PR_CreateTrace((qName),(rName),(description))
+#else
+#define PR_CREATE_TRACE(handle,qName,rName,description)
+#endif
+
+NSPR_API(PRTraceHandle)
+PR_CreateTrace(
+    const char *qName,          /* QName for this trace handle */
+    const char *rName,          /* RName for this trace handle */
+    const char *description     /* description for this trace handle */
+);
+
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_DestroyTrace() -- Destroy a trace handle
+**
+** DESCRIPTION:
+**  PR_DestroyTrace() removes the referenced trace handle and
+** associated QName, RName and description data from the Trace
+** Facility.
+**
+** INPUTS: handle. A PRTraceHandle
+**
+** OUTPUTS:
+**  The trace handle is unregistered.
+**  The QName, RName and description are removed.
+**
+** RETURNS: void
+**
+** RESTRICTIONS:
+**
+*/
+#if defined (DEBUG) || defined (FORCE_NSPR_TRACE)
+#define PR_DESTROY_TRACE(handle)\
+    PR_DestroyTrace((handle))
+#else
+#define PR_DESTROY_TRACE(handle)
+#endif
+
+NSPR_API(void)
+PR_DestroyTrace(
+    PRTraceHandle handle    /* Handle to be destroyed */
+);
+
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_Trace() -- Make a trace entry in the in-memory trace
+**
+** DESCRIPTION:
+** PR_Trace() makes an entry in the in-memory trace buffer for
+** the referenced trace handle. The next logically available
+** PRTraceEntry is used; when the next trace entry would overflow
+** the trace table, the table wraps.
+**
+** PR_Trace() for a specific trace handle may be disabled by
+** calling PR_SetTraceOption() specifying PRTraceDisable for the
+** trace handle to be disabled.
+**
+** INPUTS:
+** handle: PRTraceHandle. The trace handle for this trace.
+**
+** userData[0..7]: unsigned 32bit integers. user supplied data
+** that is copied into the PRTraceEntry
+**
+** OUTPUTS:
+**  A PRTraceEntry is (conditionally) formatted in the in-memory
+** trace buffer.
+**
+** RETURNS: void.
+**
+** RESTRICTIONS:
+**
+*/
+#if defined (DEBUG) || defined (FORCE_NSPR_TRACE)
+#define PR_TRACE(handle,ud0,ud1,ud2,ud3,ud4,ud5,ud6,ud7)\
+    PR_Trace((handle),(ud0),(ud1),(ud2),(ud3),(ud4),(ud5),(ud6),(ud7))
+#else
+#define PR_TRACE(handle,ud0,ud1,ud2,ud3,ud4,ud5,ud6,ud7)
+#endif
+
+NSPR_API(void)
+PR_Trace(
+    PRTraceHandle handle,       /* use this trace handle */
+    PRUint32    userData0,      /* User supplied data word 0 */
+    PRUint32    userData1,      /* User supplied data word 1 */
+    PRUint32    userData2,      /* User supplied data word 2 */
+    PRUint32    userData3,      /* User supplied data word 3 */
+    PRUint32    userData4,      /* User supplied data word 4 */
+    PRUint32    userData5,      /* User supplied data word 5 */
+    PRUint32    userData6,      /* User supplied data word 6 */
+    PRUint32    userData7       /* User supplied data word 7 */
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_SetTraceOption() -- Control the Trace Facility
+**
+** DESCRIPTION:
+** PR_SetTraceOption() controls the Trace Facility. Depending on
+** command and value, attributes of the Trace Facility may be
+** changed.
+**
+** INPUTS:
+**  command: An enumerated value in the set of PRTraceOption.
+**  value: pointer to the data to be set. Type of the data is
+**  dependent on command; for each value of command, the type
+**  and meaning of dereferenced value is shown.
+**
+**  PRTraceBufSize: unsigned long: the size of the trace buffer,
+** in bytes.
+**
+**  PRTraceEnable: PRTraceHandle. The trace handle to be
+** enabled.
+**
+**  PRTraceDisable: PRTraceHandle. The trace handle to be
+** disabled.
+**
+**  PRTraceSuspend: void. value must be NULL. All tracing is
+** suspended.
+**
+**  PRTraceResume: void. value must be NULL. Tracing for all
+** previously enabled, prior to a PRTraceSuspend, is resumed.
+**
+**  PRTraceStopRecording: void. value must be NULL. If recording
+** (see: ** PR_RecordTraceEntries()) is being done,
+** PRTraceStopRecording causes PR_RecordTraceEntries() to return
+** to its caller. If recording is not being done, this function
+** has no effect.
+**
+**  PRTraceSuspendRecording: void. Must be NULL. If recording is
+** being done, PRTraceSuspendRecording causes further writes to
+** the trace file to be suspended. Data in the in-memory
+** trace buffer that would ordinarily be written to the
+** trace file will not be written. Trace entries will continue
+** to be entered in the in-memory buffer. If the Trace Facility
+** recording is already in a suspended state, the call has no
+** effect.
+**
+**  PRTraceResumeRecording: void. value must be NULL. If
+** recording for the Trace Facility has been previously been
+** suspended, this causes recording to resume. Recording resumes
+** with the next in-memory buffer segment that would be written
+** if trace recording had not been suspended. If recording is
+** not currently suspended, the call has no effect.
+**
+**  PRTraceLockHandles: void. value must be NULL. Locks the
+** trace handle lock. While the trace handle lock is held,
+** calls to PR_CreateTrace() will block until the lock is
+** released.
+**
+**  PRTraceUnlockHandles: void. value must be NULL. Unlocks the
+** trace handle lock.
+**
+** OUTPUTS:
+**  The operation of the Trace Facility may be changed.
+**
+** RETURNS: void
+**
+** RESTRICTIONS:
+**
+*/
+#if defined (DEBUG) || defined (FORCE_NSPR_TRACE)
+#define PR_SET_TRACE_OPTION(command,value)\
+    PR_SetTraceOption((command),(value))
+#else
+#define PR_SET_TRACE_OPTION(command,value)
+#endif
+
+NSPR_API(void)
+PR_SetTraceOption(
+    PRTraceOption command,  /* One of the enumerated values */
+    void *value             /* command value or NULL */
+);
+
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_GetTraceOption() -- Retrieve settings from the Trace Facility
+**
+** DESCRIPTION:
+** PR_GetTraceOption() retrieves the current setting of the
+** Trace Facility control depending on command.
+**
+**
+**  PRTraceBufSize: unsigned long: the size of the trace buffer,
+** in bytes.
+**
+**
+** INPUTS:
+**  command: one of the enumerated values in PRTraceOptions
+** valid for PR_GetTraceOption().
+**
+** OUTPUTS:
+**  dependent on command.
+**
+** RETURNS: void
+**
+** RESTRICTIONS:
+**
+*/
+#if defined (DEBUG) || defined (FORCE_NSPR_TRACE)
+#define PR_GET_TRACE_OPTION(command,value)\
+    PR_GetTraceOption((command),(value))
+#else
+#define PR_GET_TRACE_OPTION(command,value)
+#endif
+
+NSPR_API(void)
+PR_GetTraceOption(
+    PRTraceOption command,  /* One of the enumerated values */
+    void *value             /* command value or NULL */
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_GetTraceHandleFromName() -- Retrieve an existing
+** handle by name.
+**
+** DESCRIPTION:
+** PR_GetTraceHandleFromName() retreives an existing tracehandle
+** using the name specified by qName and rName.
+**
+** INPUTS:
+**  qName: pointer to string. QName for this trace handle.
+**
+**  rName: pointer to string. RName for this trace handle.
+**
+**
+** OUTPUTS: returned.
+**
+** RETURNS:
+**  PRTraceHandle associated with qName and rName or NULL when
+** there is no match.
+**
+** RESTRICTIONS:
+**
+*/
+#if defined (DEBUG) || defined (FORCE_NSPR_TRACE)
+#define PR_GET_TRACE_HANDLE_FROM_NAME(handle,qName,rName)\
+    (handle) = PR_GetTraceHandleFromName((qName),(rName))
+#else
+#define PR_GET_TRACE_HANDLE_FROM_NAME(handle,qName,rName)
+#endif
+
+NSPR_API(PRTraceHandle)
+PR_GetTraceHandleFromName(
+    const char *qName,      /* QName search argument */
+    const char *rName       /* RName search argument */
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_GetTraceNameFromHandle() -- Retreive trace name
+** by bandle.
+**
+** DESCRIPTION:
+** PR_GetTraceNameFromHandle() retreives the existing qName,
+** rName, and description for the referenced trace handle.
+**
+** INPUTS: handle: PRTraceHandle.
+**
+** OUTPUTS: pointers to the Trace Facility's copy of qName,
+** rName and description. ... Don't mess with these values.
+** They're mine.
+**
+** RETURNS: void
+**
+** RESTRICTIONS:
+**
+*/
+#if defined (DEBUG) || defined (FORCE_NSPR_TRACE)
+#define PR_GET_TRACE_NAME_FROM_HANDLE(handle,qName,rName,description)\
+    PR_GetTraceNameFromHandle((handle),(qName),(rName),(description))
+#else
+#define PR_GET_TRACE_NAME_FROM_HANDLE(handle,qName,rName,description)
+#endif
+
+NSPR_API(void)
+PR_GetTraceNameFromHandle(
+    PRTraceHandle handle,       /* handle as search argument */
+    const char **qName,         /* pointer to associated QName */
+    const char **rName,         /* pointer to associated RName */
+    const char **description    /* pointer to associated description */
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_FindNextTraceQname() -- Retrieive a QName handle
+** iterator.
+**
+** DESCRIPTION:
+** PR_FindNextTraceQname() retreives the first or next trace
+** QName handle, depending on the value of handle, from the trace
+** database. The PRTraceHandle returned can be used as an
+** iterator to traverse the QName handles in the Trace database.
+**
+** INPUTS:
+**  handle: When NULL, PR_FindNextQname() returns the first QName
+** handle. When a handle is a valid PRTraceHandle previously
+** retreived using PR_FindNextQname() the next QName handle is
+** retreived.
+**
+** OUTPUTS: returned.
+**
+** RETURNS:
+**  PRTraceHandle or NULL when there are no trace handles.
+**
+** RESTRICTIONS:
+**  Iterating thru the trace handles via FindFirst/FindNext
+** should be done under protection of the trace handle lock.
+** See: PR_SetTraceOption( PRLockTraceHandles ).
+**
+*/
+#if defined (DEBUG) || defined (FORCE_NSPR_TRACE)
+#define PR_FIND_NEXT_TRACE_QNAME(next,handle)\
+    (next) = PR_FindNextTraceQname((handle))
+#else
+#define PR_FIND_NEXT_TRACE_QNAME(next,handle)
+#endif
+
+NSPR_API(PRTraceHandle)
+PR_FindNextTraceQname(
+    PRTraceHandle handle
+);
+
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_FindNextTraceRname() -- Retrieive an RName handle
+** iterator.
+**
+** DESCRIPTION:
+** PR_FindNextTraceRname() retreives the first or next trace
+** RName handle, depending on the value of handle, from the trace
+** database. The PRTraceHandle returned can be used as an
+** iterator to traverse the RName handles in the Trace database.
+**
+** INPUTS:
+**  rhandle: When NULL, PR_FindNextRname() returns the first
+** RName handle. When a handle is a valid PRTraceHandle
+** previously retreived using PR_FindNextRname() the next RName
+** handle is retreived.
+**  qhandle: A valid PRTraceHandle retruned from a previous call
+** to PR_FIND_NEXT_TRACE_QNAME().
+**
+** OUTPUTS: returned.
+**
+** RETURNS:
+**  PRTraceHandle or NULL when there are no trace handles.
+**
+** RESTRICTIONS:
+**  Iterating thru the trace handles via FindNext should be done
+** under protection of the trace handle lock. See: (
+** PR_SetTraceOption( PRLockTraceHandles ).
+**
+*/
+#if defined (DEBUG) || defined (FORCE_NSPR_TRACE)
+#define PR_FIND_NEXT_TRACE_RNAME(next,rhandle,qhandle)\
+    (next) = PR_FindNextTraceRname((rhandle),(qhandle))
+#else
+#define PR_FIND_NEXT_TRACE_RNAME(next,rhandle,qhandle)
+#endif
+
+NSPR_API(PRTraceHandle)
+PR_FindNextTraceRname(
+    PRTraceHandle rhandle,
+    PRTraceHandle qhandle
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_RecordTraceEntries() -- Write trace entries to external media
+**
+** DESCRIPTION:
+** PR_RecordTraceEntries() causes entries in the in-memory trace
+** buffer to be written to external media.
+**
+** When PR_RecordTraceEntries() is called from an application
+** thread, the function appears to block until another thread
+** calls PR_SetTraceOption() with the PRTraceStopRecording
+** option. This suggests that PR_RecordTraceEntries() should be
+** called from a user supplied thread whose only job is to
+** record trace entries.
+**
+** The environment variable NSPR_TRACE_LOG controls the operation
+** of this function. When NSPR_TRACE_LOG is not defined in the
+** environment, no recording of trace entries occurs. When
+** NSPR_TRACE_LOG is defined, the value of its definition must be
+** the filename of the file to receive the trace entry buffer.
+**
+** PR_RecordTraceEntries() attempts to record the in-memory
+** buffer to a file, subject to the setting of the environment
+** variable NSPR_TRACE_LOG. It is possible because of system
+** load, the thread priority of the recording thread, number of
+** active trace records being written over time, and other
+** variables that some trace records can be lost. ... In other
+** words: don't bet the farm on getting everything.
+**
+** INPUTS: none
+**
+** OUTPUTS: none
+**
+** RETURNS: PR_STATUS
+**    PR_SUCCESS no errors were found.
+**    PR_FAILURE errors were found.
+**
+** RESTRICTIONS:
+** Only one thread can call PR_RecordTraceEntries() within a
+** process.
+**
+** On error, PR_RecordTraceEntries() may return prematurely.
+**
+*/
+#if defined (DEBUG) || defined (FORCE_NSPR_TRACE)
+#define PR_RECORD_TRACE_ENTRIES()\
+    PR_RecordTraceEntries()
+#else
+#define PR_RECORD_TRACE_ENTRIES()
+#endif
+
+NSPR_API(void)
+PR_RecordTraceEntries(
+    void
+);
+
+/* -----------------------------------------------------------------------
+** FUNCTION: PR_GetTraceEntries() -- Retreive trace entries from
+** the Trace Facility
+**
+** DESCRIPTION:
+** PR_GetTraceEntries() retreives trace entries from the Trace
+** Facility. Up to count trace entries are copied from the Trace
+** Facility into buffer. Only those trace entries that have not
+** been copied via a previous call to PR_GetTraceEntries() are
+** copied. The actual number copied is placed in the PRInt32
+** variable pointed to by found.
+**
+** If more than count trace entries have entered the Trace
+** Facility since the last call to PR_GetTraceEntries()
+** a lost data condition is returned. In this case, the most
+** recent count trace entries are copied into buffer and found is
+** set to count.
+**
+** INPUTS:
+**  count. The number of trace entries to be copied into buffer.
+**
+**
+** OUTPUTS:
+**  buffer. An array of PRTraceEntries. The buffer is supplied
+** by the caller.
+**
+** found: 32bit signed integer. The number of PRTraceEntries
+** actually copied. found is always less than or equal to count.
+**
+** RETURNS:
+**  zero when there is no lost data.
+**  non-zero when some PRTraceEntries have been lost.
+**
+** RESTRICTIONS:
+** This is a real performance pig. The copy out operation is bad
+** enough, but depending on then frequency of calls to the
+** function, serious performance impact to the operating
+** application may be realized. ... YMMV.
+**
+*/
+#if defined (DEBUG) || defined (FORCE_NSPR_TRACE)
+#define PR_GET_TRACE_ENTRIES(buffer,count,found)\
+        PR_GetTraceEntries((buffer),(count),(found))
+#else
+#define PR_GET_TRACE_ENTRIES(buffer,count,found)
+#endif
+
+NSPR_API(PRIntn)
+PR_GetTraceEntries(
+    PRTraceEntry    *buffer,    /* where to write output */
+    PRInt32         count,      /* number to get */
+    PRInt32         *found      /* number you got */
+);
+
+PR_END_EXTERN_C
+
+#endif /* prtrace_h___ */
+
diff --git a/nsprpub/pr/include/prtypes.h b/nsprpub/pr/include/prtypes.h
new file mode 100644
index 0000000000..7400367f89
--- /dev/null
+++ b/nsprpub/pr/include/prtypes.h
@@ -0,0 +1,561 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** File:                prtypes.h
+** Description: Definitions of NSPR's basic types
+**
+** Prototypes and macros used to make up for deficiencies that we have found
+** in ANSI environments.
+**
+** Since we do not wrap <stdlib.h> and all the other standard headers, authors
+** of portable code will not know in general that they need these definitions.
+** Instead of requiring these authors to find the dependent uses in their code
+** and take the following steps only in those C files, we take steps once here
+** for all C files.
+**/
+
+#ifndef prtypes_h___
+#define prtypes_h___
+
+#ifdef MDCPUCFG
+#include MDCPUCFG
+#else
+#include "prcpucfg.h"
+#endif
+
+#include <stddef.h>
+
+/***********************************************************************
+** MACROS:      PR_EXTERN
+**              PR_IMPLEMENT
+** DESCRIPTION:
+**      These are only for externally visible routines and globals.  For
+**      internal routines, just use "extern" for type checking and that
+**      will not export internal cross-file or forward-declared symbols.
+**      Define a macro for declaring procedures return types. We use this to
+**      deal with windoze specific type hackery for DLL definitions. Use
+**      PR_EXTERN when the prototype for the method is declared. Use
+**      PR_IMPLEMENT for the implementation of the method.
+**
+** Example:
+**   in dowhim.h
+**     PR_EXTERN( void ) DoWhatIMean( void );
+**   in dowhim.c
+**     PR_IMPLEMENT( void ) DoWhatIMean( void ) { return; }
+**
+**
+***********************************************************************/
+#if defined(WIN32)
+
+#define PR_EXPORT(__type) extern __declspec(dllexport) __type
+#define PR_EXPORT_DATA(__type) extern __declspec(dllexport) __type
+#define PR_IMPORT(__type) __declspec(dllimport) __type
+#define PR_IMPORT_DATA(__type) __declspec(dllimport) __type
+
+#define PR_EXTERN(__type) extern __declspec(dllexport) __type
+#define PR_IMPLEMENT(__type) __declspec(dllexport) __type
+#define PR_EXTERN_DATA(__type) extern __declspec(dllexport) __type
+#define PR_IMPLEMENT_DATA(__type) __declspec(dllexport) __type
+
+#define PR_CALLBACK
+#define PR_CALLBACK_DECL
+#define PR_STATIC_CALLBACK(__x) static __x
+
+#elif defined(XP_OS2) && defined(__declspec)
+
+#define PR_EXPORT(__type) extern __declspec(dllexport) __type
+#define PR_EXPORT_DATA(__type) extern __declspec(dllexport) __type
+#define PR_IMPORT(__type) extern  __declspec(dllimport) __type
+#define PR_IMPORT_DATA(__type) extern __declspec(dllimport) __type
+
+#define PR_EXTERN(__type) extern __declspec(dllexport) __type
+#define PR_IMPLEMENT(__type) __declspec(dllexport) __type
+#define PR_EXTERN_DATA(__type) extern __declspec(dllexport) __type
+#define PR_IMPLEMENT_DATA(__type) __declspec(dllexport) __type
+
+#define PR_CALLBACK
+#define PR_CALLBACK_DECL
+#define PR_STATIC_CALLBACK(__x) static __x
+
+#else /* Unix */
+
+/* GCC 3.3 and later support the visibility attribute. */
+#if (__GNUC__ >= 4) || \
+    (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)
+#define PR_VISIBILITY_DEFAULT __attribute__((visibility("default")))
+#else
+#define PR_VISIBILITY_DEFAULT
+#endif
+
+#define PR_EXPORT(__type) extern PR_VISIBILITY_DEFAULT __type
+#define PR_EXPORT_DATA(__type) extern PR_VISIBILITY_DEFAULT __type
+#define PR_IMPORT(__type) extern PR_VISIBILITY_DEFAULT __type
+#define PR_IMPORT_DATA(__type) extern PR_VISIBILITY_DEFAULT __type
+
+#define PR_EXTERN(__type) extern PR_VISIBILITY_DEFAULT __type
+#define PR_IMPLEMENT(__type) PR_VISIBILITY_DEFAULT __type
+#define PR_EXTERN_DATA(__type) extern PR_VISIBILITY_DEFAULT __type
+#define PR_IMPLEMENT_DATA(__type) PR_VISIBILITY_DEFAULT __type
+#define PR_CALLBACK
+#define PR_CALLBACK_DECL
+#define PR_STATIC_CALLBACK(__x) static __x
+
+#endif
+
+#if defined(_NSPR_BUILD_)
+#define NSPR_API(__type) PR_EXPORT(__type)
+#define NSPR_DATA_API(__type) PR_EXPORT_DATA(__type)
+#else
+#define NSPR_API(__type) PR_IMPORT(__type)
+#define NSPR_DATA_API(__type) PR_IMPORT_DATA(__type)
+#endif
+
+/***********************************************************************
+** MACROS:      PR_BEGIN_MACRO
+**              PR_END_MACRO
+** DESCRIPTION:
+**      Macro body brackets so that macros with compound statement definitions
+**      behave syntactically more like functions when called.
+***********************************************************************/
+#define PR_BEGIN_MACRO  do {
+#define PR_END_MACRO    } while (0)
+
+/***********************************************************************
+** MACROS:      PR_BEGIN_EXTERN_C
+**              PR_END_EXTERN_C
+** DESCRIPTION:
+**      Macro shorthands for conditional C++ extern block delimiters.
+***********************************************************************/
+#ifdef __cplusplus
+#define PR_BEGIN_EXTERN_C       extern "C" {
+#define PR_END_EXTERN_C         }
+#else
+#define PR_BEGIN_EXTERN_C
+#define PR_END_EXTERN_C
+#endif
+
+/***********************************************************************
+** MACROS:      PR_BIT
+**              PR_BITMASK
+** DESCRIPTION:
+** Bit masking macros.  XXX n must be <= 31 to be portable
+***********************************************************************/
+#define PR_BIT(n)       ((PRUint32)1 << (n))
+#define PR_BITMASK(n)   (PR_BIT(n) - 1)
+
+/***********************************************************************
+** MACROS:      PR_ROUNDUP
+**              PR_MIN
+**              PR_MAX
+**              PR_ABS
+** DESCRIPTION:
+**      Commonly used macros for operations on compatible types.
+***********************************************************************/
+#define PR_ROUNDUP(x,y) ((((x)+((y)-1))/(y))*(y))
+#define PR_MIN(x,y)     ((x)<(y)?(x):(y))
+#define PR_MAX(x,y)     ((x)>(y)?(x):(y))
+#define PR_ABS(x)       ((x)<0?-(x):(x))
+
+/***********************************************************************
+** MACROS:      PR_ARRAY_SIZE
+** DESCRIPTION:
+**  The number of elements in an array.
+***********************************************************************/
+#define PR_ARRAY_SIZE(a) (sizeof(a)/sizeof((a)[0]))
+
+PR_BEGIN_EXTERN_C
+
+/*
+** Starting in NSPR 4.9.5, NSPR's exact-width integer types should match
+** the exact-width integer types defined in <stdint.h>. This allows sloppy
+** code to use PRInt{N} and int{N}_t interchangeably.
+**
+** The 8-bit and 16-bit integer types can only be defined using char and
+** short. All platforms define the 32-bit integer types using int. So only
+** the 64-bit integer types could be defined differently.
+**
+** NSPR's original strategy was to use the "shortest" 64-bit integer type:
+** if long is 64-bit, then prefer it over long long. This strategy is also
+** used by Linux/glibc, FreeBSD, and NetBSD.
+**
+** Other platforms use a different strategy: simply define the 64-bit
+** integer types using long long. We define the PR_ALTERNATE_INT64_TYPEDEF
+** macro on these platforms. Note that PR_ALTERNATE_INT64_TYPEDEF is for
+** internal use by NSPR headers only. Do not define or test this macro in
+** your code.
+**
+** NOTE: NSPR can't use <stdint.h> because C99 requires C++ code to define
+** __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS to make all the macros
+** defined in <stdint.h> available. This strange requirement is gone in
+** C11. When most platforms ignore this C99 requirement, NSPR will be able
+** to use <stdint.h>. A patch to do that is in NSPR bug 634793.
+*/
+
+#if defined(__APPLE__) || defined(__OpenBSD__)
+#define PR_ALTERNATE_INT64_TYPEDEF
+#endif
+
+/************************************************************************
+** TYPES:       PRUint8
+**              PRInt8
+** DESCRIPTION:
+**  The int8 types are known to be 8 bits each. There is no type that
+**      is equivalent to a plain "char".
+************************************************************************/
+#if PR_BYTES_PER_BYTE == 1
+typedef unsigned char PRUint8;
+/*
+** There are two scenarios that require us to define PRInt8 as type 'char'.
+** (1)
+** Some cfront-based C++ compilers do not like 'signed char' and
+** issue the warning message:
+**     warning: "signed" not implemented (ignored)
+** For these compilers, we have to define PRInt8 as plain 'char'.
+** Make sure that plain 'char' is indeed signed under these compilers.
+** (2)
+** Mozilla C++ code expects the PRInt{N} and int{N}_t types to match (see bug
+** 634793). If a platform defines int8_t as 'char', but NSPR defines it as
+** 'signed char', it results in a type mismatch.
+** On such platforms we define PRInt8 as 'char' to avoid the mismatch.
+*/
+#if (defined(HPUX) && defined(__cplusplus) /* reason 1*/ \
+        && !defined(__GNUC__) && __cplusplus < 199707L) \
+    || (defined(SCO) && defined(__cplusplus) /* reason 1 */ \
+        && !defined(__GNUC__) && __cplusplus == 1L) \
+    || (defined(__sun) && defined(__cplusplus)) /* reason 2 */
+typedef char PRInt8;
+#else
+typedef signed char PRInt8;
+#endif
+#else
+#error No suitable type for PRInt8/PRUint8
+#endif
+
+/************************************************************************
+ * MACROS:      PR_INT8_MAX
+ *              PR_INT8_MIN
+ *              PR_UINT8_MAX
+ * DESCRIPTION:
+ *  The maximum and minimum values of a PRInt8 or PRUint8.
+************************************************************************/
+
+#define PR_INT8_MAX 127
+#define PR_INT8_MIN (-128)
+#define PR_UINT8_MAX 255U
+
+/************************************************************************
+** TYPES:       PRUint16
+**              PRInt16
+** DESCRIPTION:
+**  The int16 types are known to be 16 bits each.
+************************************************************************/
+#if PR_BYTES_PER_SHORT == 2
+typedef unsigned short PRUint16;
+typedef short PRInt16;
+#else
+#error No suitable type for PRInt16/PRUint16
+#endif
+
+/************************************************************************
+ * MACROS:      PR_INT16_MAX
+ *              PR_INT16_MIN
+ *              PR_UINT16_MAX
+ * DESCRIPTION:
+ *  The maximum and minimum values of a PRInt16 or PRUint16.
+************************************************************************/
+
+#define PR_INT16_MAX 32767
+#define PR_INT16_MIN (-32768)
+#define PR_UINT16_MAX 65535U
+
+/************************************************************************
+** TYPES:       PRUint32
+**              PRInt32
+** DESCRIPTION:
+**  The int32 types are known to be 32 bits each.
+************************************************************************/
+#if PR_BYTES_PER_INT == 4
+typedef unsigned int PRUint32;
+typedef int PRInt32;
+#define PR_INT32(x)  x
+#define PR_UINT32(x) x ## U
+#elif PR_BYTES_PER_LONG == 4
+typedef unsigned long PRUint32;
+typedef long PRInt32;
+#define PR_INT32(x)  x ## L
+#define PR_UINT32(x) x ## UL
+#else
+#error No suitable type for PRInt32/PRUint32
+#endif
+
+/************************************************************************
+ * MACROS:      PR_INT32_MAX
+ *              PR_INT32_MIN
+ *              PR_UINT32_MAX
+ * DESCRIPTION:
+ *  The maximum and minimum values of a PRInt32 or PRUint32.
+************************************************************************/
+
+#define PR_INT32_MAX PR_INT32(2147483647)
+#define PR_INT32_MIN (-PR_INT32_MAX - 1)
+#define PR_UINT32_MAX PR_UINT32(4294967295)
+
+/************************************************************************
+** TYPES:       PRUint64
+**              PRInt64
+** DESCRIPTION:
+**  The int64 types are known to be 64 bits each. Care must be used when
+**      declaring variables of type PRUint64 or PRInt64. Different hardware
+**      architectures and even different compilers have varying support for
+**      64 bit values. The only guaranteed portability requires the use of
+**      the LL_ macros (see prlong.h).
+**
+** MACROS:      PR_INT64
+**              PR_UINT64
+** DESCRIPTION:
+**  The PR_INT64 and PR_UINT64 macros provide a portable way for
+**      specifying 64-bit integer constants. They can only be used if
+**      PRInt64 and PRUint64 are defined as compiler-supported 64-bit
+**      integer types (i.e., if HAVE_LONG_LONG is defined, which is true
+**      for all the supported compilers topday). If PRInt64 and PRUint64
+**      are defined as structs, the LL_INIT macro defined in prlong.h has
+**      to be used.
+**
+** MACROS:      PR_INT64_MAX
+**              PR_INT64_MIN
+**              PR_UINT64_MAX
+** DESCRIPTION:
+**  The maximum and minimum values of a PRInt64 or PRUint64.
+************************************************************************/
+#ifdef HAVE_LONG_LONG
+/* Keep this in sync with prlong.h. */
+#if PR_BYTES_PER_LONG == 8 && !defined(PR_ALTERNATE_INT64_TYPEDEF)
+typedef long PRInt64;
+typedef unsigned long PRUint64;
+#define PR_INT64(x)  x ## L
+#define PR_UINT64(x) x ## UL
+#elif defined(WIN32) && !defined(__GNUC__)
+typedef __int64  PRInt64;
+typedef unsigned __int64 PRUint64;
+#define PR_INT64(x)  x ## i64
+#define PR_UINT64(x) x ## ui64
+#else
+typedef long long PRInt64;
+typedef unsigned long long PRUint64;
+#define PR_INT64(x)  x ## LL
+#define PR_UINT64(x) x ## ULL
+#endif /* PR_BYTES_PER_LONG == 8 */
+
+#define PR_INT64_MAX PR_INT64(0x7fffffffffffffff)
+#define PR_INT64_MIN (-PR_INT64_MAX - 1)
+#define PR_UINT64_MAX PR_UINT64(-1)
+#else  /* !HAVE_LONG_LONG */
+typedef struct {
+#ifdef IS_LITTLE_ENDIAN
+    PRUint32 lo, hi;
+#else
+    PRUint32 hi, lo;
+#endif
+} PRInt64;
+typedef PRInt64 PRUint64;
+
+#define PR_INT64_MAX (PRInt64){0x7fffffff, 0xffffffff}
+#define PR_INT64_MIN (PRInt64){0xffffffff, 0xffffffff}
+#define PR_UINT64_MAX (PRUint64){0xffffffff, 0xffffffff}
+
+#endif /* !HAVE_LONG_LONG */
+
+/************************************************************************
+** TYPES:       PRUintn
+**              PRIntn
+** DESCRIPTION:
+**  The PRIntn types are most appropriate for automatic variables. They are
+**      guaranteed to be at least 16 bits, though various architectures may
+**      define them to be wider (e.g., 32 or even 64 bits). These types are
+**      never valid for fields of a structure.
+************************************************************************/
+#if PR_BYTES_PER_INT >= 2
+typedef int PRIntn;
+typedef unsigned int PRUintn;
+#else
+#error 'sizeof(int)' not sufficient for platform use
+#endif
+
+/************************************************************************
+** TYPES:       PRFloat64
+** DESCRIPTION:
+**  NSPR's floating point type is always 64 bits.
+************************************************************************/
+typedef double          PRFloat64;
+
+/************************************************************************
+** TYPES:       PRSize
+** DESCRIPTION:
+**  A type for representing the size of objects.
+************************************************************************/
+typedef size_t PRSize;
+
+
+/************************************************************************
+** TYPES:       PROffset32, PROffset64
+** DESCRIPTION:
+**  A type for representing byte offsets from some location.
+************************************************************************/
+typedef PRInt32 PROffset32;
+typedef PRInt64 PROffset64;
+
+/************************************************************************
+** TYPES:       PRPtrDiff
+** DESCRIPTION:
+**  A type for pointer difference. Variables of this type are suitable
+**      for storing a pointer or pointer subtraction.
+************************************************************************/
+typedef ptrdiff_t PRPtrdiff;
+
+/************************************************************************
+** TYPES:       PRUptrdiff
+** DESCRIPTION:
+**  A type for pointer difference. Variables of this type are suitable
+**      for storing a pointer or pointer sutraction.
+************************************************************************/
+#ifdef _WIN64
+typedef PRUint64 PRUptrdiff;
+#else
+typedef unsigned long PRUptrdiff;
+#endif
+
+/************************************************************************
+** TYPES:       PRBool
+** DESCRIPTION:
+**  Use PRBool for variables and parameter types. Use PR_FALSE and PR_TRUE
+**      for clarity of target type in assignments and actual arguments. Use
+**      'if (bool)', 'while (!bool)', '(bool) ? x : y' etc., to test booleans
+**      just as you would C int-valued conditions.
+************************************************************************/
+typedef PRIntn PRBool;
+#define PR_TRUE 1
+#define PR_FALSE 0
+
+/************************************************************************
+** TYPES:       PRPackedBool
+** DESCRIPTION:
+**  Use PRPackedBool within structs where bitfields are not desirable
+**      but minimum and consistant overhead matters.
+************************************************************************/
+typedef PRUint8 PRPackedBool;
+
+/*
+** Status code used by some routines that have a single point of failure or
+** special status return.
+*/
+typedef enum { PR_FAILURE = -1, PR_SUCCESS = 0 } PRStatus;
+
+#ifndef __PRUNICHAR__
+#define __PRUNICHAR__
+#ifdef WIN32
+typedef wchar_t PRUnichar;
+#else
+typedef PRUint16 PRUnichar;
+#endif
+#endif
+
+/*
+** WARNING: The undocumented data types PRWord and PRUword are
+** only used in the garbage collection and arena code.  Do not
+** use PRWord and PRUword in new code.
+**
+** A PRWord is an integer that is the same size as a void*.
+** It implements the notion of a "word" in the Java Virtual
+** Machine.  (See Sec. 3.4 "Words", The Java Virtual Machine
+** Specification, Addison-Wesley, September 1996.
+** http://java.sun.com/docs/books/vmspec/index.html.)
+*/
+#ifdef _WIN64
+typedef PRInt64 PRWord;
+typedef PRUint64 PRUword;
+#else
+typedef long PRWord;
+typedef unsigned long PRUword;
+#endif
+
+/*
+ * PR_PRETEND_NORETURN, specified at the end of a function declaration,
+ * indicates that for the purposes of static analysis, this function does not
+ * return.  (The function definition does not need to be annotated.)
+ *
+ * void PR_Assert(const char *s, const char *file, PRIntn ln)
+ *     PR_PRETEND_NORETURN;
+ *
+ * Some static analyzers, like scan-build from clang, can use this information
+ * to eliminate false positives.  From the upstream documentation of
+ * scan-build:
+ *     This attribute is useful for annotating assertion handlers that actually
+ *     can return, but for the purpose of using the analyzer we want to pretend
+ *     that such functions do not return.
+ */
+#ifdef __clang_analyzer__
+#if __has_extension(attribute_analyzer_noreturn)
+#define PR_PRETEND_NORETURN __attribute__((analyzer_noreturn))
+#endif
+#endif
+
+#ifndef PR_PRETEND_NORETURN
+#define PR_PRETEND_NORETURN /* no support */
+#endif
+
+#if defined(NO_NSPR_10_SUPPORT)
+#else
+/********* ???????????????? FIX ME       ??????????????????????????? *****/
+/********************** Some old definitions until pr=>ds transition is done ***/
+/********************** Also, we are still using NSPR 1.0. GC ******************/
+/*
+** Fundamental NSPR macros, used nearly everywhere.
+*/
+
+#define PR_PUBLIC_API       PR_IMPLEMENT
+
+/*
+** Macro body brackets so that macros with compound statement definitions
+** behave syntactically more like functions when called.
+*/
+#define NSPR_BEGIN_MACRO        do {
+#define NSPR_END_MACRO          } while (0)
+
+/*
+** Macro shorthands for conditional C++ extern block delimiters.
+*/
+#ifdef NSPR_BEGIN_EXTERN_C
+#undef NSPR_BEGIN_EXTERN_C
+#endif
+#ifdef NSPR_END_EXTERN_C
+#undef NSPR_END_EXTERN_C
+#endif
+
+#ifdef __cplusplus
+#define NSPR_BEGIN_EXTERN_C     extern "C" {
+#define NSPR_END_EXTERN_C       }
+#else
+#define NSPR_BEGIN_EXTERN_C
+#define NSPR_END_EXTERN_C
+#endif
+
+#include "obsolete/protypes.h"
+
+/********* ????????????? End Fix me ?????????????????????????????? *****/
+#endif /* NO_NSPR_10_SUPPORT */
+
+/*
+** Compile-time assert. "condition" must be a constant expression.
+** The macro can be used only in places where an "extern" declaration is
+** allowed.
+*/
+#define PR_STATIC_ASSERT(condition) \
+    extern void pr_static_assert(int arg[(condition) ? 1 : -1])
+
+PR_END_EXTERN_C
+
+#endif /* prtypes_h___ */
+
diff --git a/nsprpub/pr/include/prvrsion.h b/nsprpub/pr/include/prvrsion.h
new file mode 100755
index 0000000000..99ed1db6c2
--- /dev/null
+++ b/nsprpub/pr/include/prvrsion.h
@@ -0,0 +1,105 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+/* author: jstewart */
+
+#if defined(_PRVERSION_H)
+#else
+#define _PRVERSION_H
+
+#include "prtypes.h"
+
+PR_BEGIN_EXTERN_C
+
+/* All components participating in the PR version protocol must expose
+ * a structure and a function. The structure is defined below and named
+ * according to the naming conventions outlined further below.  The function
+ * is called libVersionPoint and returns a pointer to this structure.
+ */
+
+/* on NT, always pack the structure the same. */
+#ifdef _WIN32
+#pragma pack(push, 8)
+#endif
+
+typedef struct {
+    /*
+     * The first field defines which version of this structure is in use.
+     * At this time, only version 2 is specified. If this value is not
+     * 2, you must read no further into the structure.
+     */
+    PRInt32    version;
+
+    /* for Version 2, this is the body format. */
+    PRInt64         buildTime;      /* 64 bits - usecs since midnight, 1/1/1970 */
+    char *          buildTimeString;/* a human readable version of the time */
+
+    PRUint8   vMajor;               /* Major version of this component */
+    PRUint8   vMinor;               /* Minor version of this component */
+    PRUint8   vPatch;               /* Patch level of this component */
+
+    PRBool          beta;           /* true if this is a beta component */
+    PRBool          debug;          /* true if this is a debug component */
+    PRBool          special;        /* true if this component is a special build */
+
+    char *          filename;       /* The original filename */
+    char *          description;    /* description of this component */
+    char *          security;       /* level of security in this component */
+    char *          copyright;      /* The copyright for this file */
+    char *          comment;        /* free form field for misc usage */
+    char *          specialString;  /* the special variant for this build */
+} PRVersionDescription;
+
+/* on NT, restore the previous packing */
+#ifdef _WIN32
+#pragma pack(pop)
+#endif
+
+/*
+ * All components must define an entrypoint named libVersionPoint which
+ * is of type versionEntryPointType.
+ *
+ * For example, for a library named libfoo, we would have:
+ *
+ *   PRVersionDescription prVersionDescription_libfoo =
+ *   {
+ *       ...
+ *   };
+ *
+ *   PR_IMPLEMENT(const PRVersionDescription*) libVersionPoint(void)
+ *   {
+ *       return &prVersionDescription_libfoo;
+ *   }
+ */
+typedef const PRVersionDescription *(*versionEntryPointType)(void);
+
+/*
+ * Where you declare your libVersionPoint, do it like this:
+ * PR_IMPLEMENT(const PRVersionDescription *) libVersionPoint(void) {
+ *  fill it in...
+ * }
+ */
+
+/*
+ * NAMING CONVENTION FOR struct
+ *
+ * all components should also expose a static PRVersionDescription
+ * The name of the struct should be calculated as follows:
+ * Take the value of filename. (If filename is not specified, calculate
+ * a short, unique string.)  Convert all non-alphanumeric characters
+ * to '_'.  To this, prepend "PRVersionDescription_".  Thus for libfoo.so,
+ * the symbol name is "PRVersionDescription_libfoo_so".
+ * so the file should have
+ * PRVersionDescription PRVersionDescription_libfoo_so { fill it in };
+ * on NT, this file should be declspec export.
+ */
+
+PR_END_EXTERN_C
+
+#endif  /* defined(_PRVERSION_H) */
+
+/* prvrsion.h */
+
diff --git a/nsprpub/pr/include/prwin16.h b/nsprpub/pr/include/prwin16.h
new file mode 100644
index 0000000000..b545f04af0
--- /dev/null
+++ b/nsprpub/pr/include/prwin16.h
@@ -0,0 +1,164 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef prwin16_h___
+#define prwin16_h___
+
+/*
+** Condition use of this header on platform.
+*/
+#if (defined(XP_PC) && !defined(_WIN32) && !defined(XP_OS2) && defined(MOZILLA_CLIENT)) || defined(WIN16)
+#include <stdio.h>
+
+PR_BEGIN_EXTERN_C
+/*
+** Win16 stdio special case.
+** To get stdio to work for Win16, all calls to printf() and related
+** things must be called from the environment of the .EXE; calls to
+** printf() from the .DLL send output to the bit-bucket.
+**
+** To make sure that PR_fprintf(), and related functions, work correctly,
+** the actual stream I/O to stdout, stderr, stdin must be done in the
+** .EXE. To do this, a hack is placed in _MD_Write() such that the
+** fd for stdio handles results in a call to the .EXE.
+**
+** file w16stdio.c contains the functions that get called from NSPR
+** to do the actual I/O. w16stdio.o must be statically linked with
+** any application needing stdio for Win16.
+**
+** The address of these functions must be made available to the .DLL
+** so he can call back to the .EXE. To do this, function
+** PR_MD_RegisterW16StdioCallbacks() is called from the .EXE.
+** The arguments are the functions defined in w16stdio.c
+** At runtime, MD_Write() calls the registered functions, if any
+** were registered.
+**
+** prinit.h contains a macro PR_STDIO_INIT() that calls the registration
+** function for Win16; For other platforms, the macro is a No-Op.
+**
+** Note that stdio is not operational at all on Win16 GUI applications.
+** This special case exists to provide stdio capability from the NSPR
+** .DLL for command line applications only. NSPR's test cases are
+** almost exclusively command line applications.
+**
+** See also: w16io.c, w16stdio.c
+*/
+typedef PRInt32 (PR_CALLBACK *PRStdinRead)( void *buf, PRInt32 amount);
+typedef PRInt32 (PR_CALLBACK *PRStdoutWrite)( void *buf, PRInt32 amount);
+typedef PRInt32 (PR_CALLBACK *PRStderrWrite)( void *buf, PRInt32 amount);
+
+NSPR_API(PRStatus)
+PR_MD_RegisterW16StdioCallbacks(
+    PRStdinRead inReadf,            /* i: function pointer for stdin read       */
+    PRStdoutWrite outWritef,        /* i: function pointer for stdout write     */
+    PRStderrWrite errWritef         /* i: function pointer for stderr write     */
+);
+
+NSPR_API(PRInt32)
+_PL_W16StdioWrite( void *buf, PRInt32 amount );
+
+NSPR_API(PRInt32)
+_PL_W16StdioRead( void *buf, PRInt32 amount );
+
+#define PR_STDIO_INIT() PR_MD_RegisterW16StdioCallbacks( \
+    _PL_W16StdioRead, _PL_W16StdioWrite, _PL_W16StdioWrite ); \
+    PR_INIT_CALLBACKS();
+
+/*
+** Win16 hackery.
+**
+*/
+struct PRMethodCallbackStr {
+    int     (PR_CALLBACK *auxOutput)(const char *outputString);
+    size_t  (PR_CALLBACK *strftime)(char *s, size_t len, const char *fmt, const struct tm *p);
+    void *  (PR_CALLBACK *malloc)( size_t size );
+    void *  (PR_CALLBACK *calloc)(size_t n, size_t size );
+    void *  (PR_CALLBACK *realloc)( void* old_blk, size_t size );
+    void    (PR_CALLBACK *free)( void *ptr );
+    void *  (PR_CALLBACK *getenv)( const char *name);
+    int     (PR_CALLBACK *putenv)( const char *assoc);
+    /*    void *  (PR_CALLBACK *perror)( const char *prefix ); */
+};
+
+NSPR_API(void) PR_MDRegisterCallbacks(struct PRMethodCallbackStr *);
+
+int PR_CALLBACK _PL_W16CallBackPuts( const char *outputString );
+size_t PR_CALLBACK _PL_W16CallBackStrftime(
+    char *s,
+    size_t len,
+    const char *fmt,
+    const struct tm *p );
+void * PR_CALLBACK _PL_W16CallBackMalloc( size_t size );
+void * PR_CALLBACK _PL_W16CallBackCalloc( size_t n, size_t size );
+void * PR_CALLBACK _PL_W16CallBackRealloc(
+    void *old_blk,
+    size_t size );
+void   PR_CALLBACK _PL_W16CallBackFree( void *ptr );
+void * PR_CALLBACK _PL_W16CallBackGetenv( const char *name );
+int PR_CALLBACK _PL_W16CallBackPutenv( const char *assoc );
+
+/*
+** Hackery!
+**
+** These functions are provided as static link points.
+** This is to satisfy the quick port of Gromit to NSPR 2.0
+** ... Don't do this! ... alas, It may never go away.
+**
+*/
+NSPR_API(int)     PR_MD_printf(const char *, ...);
+NSPR_API(void)    PR_MD_exit(int);
+NSPR_API(size_t)  PR_MD_strftime(char *, size_t, const char *, const struct tm *);
+NSPR_API(int)     PR_MD_sscanf(const char *, const char *, ...);
+NSPR_API(void*)   PR_MD_malloc( size_t size );
+NSPR_API(void*)   PR_MD_calloc( size_t n, size_t size );
+NSPR_API(void*)   PR_MD_realloc( void* old_blk, size_t size );
+NSPR_API(void)    PR_MD_free( void *ptr );
+NSPR_API(char*)   PR_MD_getenv( const char *name );
+NSPR_API(int)     PR_MD_putenv( const char *assoc );
+NSPR_API(int)     PR_MD_fprintf(FILE *fPtr, const char *fmt, ...);
+
+#define PR_INIT_CALLBACKS()                         \
+    {                                               \
+        static struct PRMethodCallbackStr cbf = {   \
+            _PL_W16CallBackPuts,                    \
+            _PL_W16CallBackStrftime,                \
+            _PL_W16CallBackMalloc,                  \
+            _PL_W16CallBackCalloc,                  \
+            _PL_W16CallBackRealloc,                 \
+            _PL_W16CallBackFree,                    \
+            _PL_W16CallBackGetenv,                  \
+            _PL_W16CallBackPutenv,                  \
+        };                                          \
+        PR_MDRegisterCallbacks( &cbf );             \
+    }
+
+
+/*
+** Get the exception context for Win16 MFC applications threads
+*/
+NSPR_API(void *) PR_W16GetExceptionContext(void);
+/*
+** Set the exception context for Win16 MFC applications threads
+*/
+NSPR_API(void) PR_W16SetExceptionContext(void *context);
+
+PR_END_EXTERN_C
+#else
+/*
+** For platforms other than Win16, define
+** PR_STDIO_INIT() as a No-Op.
+*/
+#define PR_STDIO_INIT()
+#endif /* WIN16 || MOZILLA_CLIENT */
+
+#endif /* prwin16_h___ */
+
+
+
+
+
+
+
+