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-rw-r--r--lib/isc/alpha/Makefile.in17
-rw-r--r--lib/isc/alpha/include/Makefile.in17
-rw-r--r--lib/isc/alpha/include/isc/Makefile.in34
-rw-r--r--lib/isc/alpha/include/isc/atomic.h180
4 files changed, 248 insertions, 0 deletions
diff --git a/lib/isc/alpha/Makefile.in b/lib/isc/alpha/Makefile.in
new file mode 100644
index 0000000..419cf9f
--- /dev/null
+++ b/lib/isc/alpha/Makefile.in
@@ -0,0 +1,17 @@
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# 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/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+srcdir = @srcdir@
+VPATH = @srcdir@
+top_srcdir = @top_srcdir@
+
+SUBDIRS = include
+TARGETS =
+
+@BIND9_MAKE_RULES@
diff --git a/lib/isc/alpha/include/Makefile.in b/lib/isc/alpha/include/Makefile.in
new file mode 100644
index 0000000..d33c0fc
--- /dev/null
+++ b/lib/isc/alpha/include/Makefile.in
@@ -0,0 +1,17 @@
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# 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/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+srcdir = @srcdir@
+VPATH = @srcdir@
+top_srcdir = @top_srcdir@
+
+SUBDIRS = isc
+TARGETS =
+
+@BIND9_MAKE_RULES@
diff --git a/lib/isc/alpha/include/isc/Makefile.in b/lib/isc/alpha/include/isc/Makefile.in
new file mode 100644
index 0000000..97b6b41
--- /dev/null
+++ b/lib/isc/alpha/include/isc/Makefile.in
@@ -0,0 +1,34 @@
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# 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/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+srcdir = @srcdir@
+VPATH = @srcdir@
+top_srcdir = @top_srcdir@
+
+VERSION=@BIND9_VERSION@
+
+HEADERS = atomic.h
+
+SUBDIRS =
+TARGETS =
+
+@BIND9_MAKE_RULES@
+
+installdirs:
+ $(SHELL) ${top_srcdir}/mkinstalldirs ${DESTDIR}${includedir}/isc
+
+install:: installdirs
+ for i in ${HEADERS}; do \
+ ${INSTALL_DATA} $(srcdir)/$$i ${DESTDIR}${includedir}/isc || exit 1; \
+ done
+
+uninstall::
+ for i in ${HEADERS}; do \
+ rm -f ${DESTDIR}${includedir}/isc/$$i || exit 1; \
+ done
diff --git a/lib/isc/alpha/include/isc/atomic.h b/lib/isc/alpha/include/isc/atomic.h
new file mode 100644
index 0000000..e704fef
--- /dev/null
+++ b/lib/isc/alpha/include/isc/atomic.h
@@ -0,0 +1,180 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * 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/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+
+/*
+ * This code was written based on FreeBSD's kernel source whose copyright
+ * follows:
+ */
+
+/*-
+ * Copyright (c) 1998 Doug Rabson
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: src/sys/alpha/include/atomic.h,v 1.18.6.1 2004/09/13 21:52:04 wilko Exp $
+ */
+
+#ifndef ISC_ATOMIC_H
+#define ISC_ATOMIC_H 1
+
+#include <inttypes.h>
+
+#include <isc/platform.h>
+#include <isc/types.h>
+
+#ifdef ISC_PLATFORM_USEOSFASM
+#include <c_asm.h>
+
+#pragma intrinsic(asm)
+
+/*
+ * This routine atomically increments the value stored in 'p' by 'val', and
+ * returns the previous value. Memory access ordering around this function
+ * can be critical, so we add explicit memory block instructions at the
+ * beginning and the end of it (same for other functions).
+ */
+static inline int32_t
+isc_atomic_xadd(int32_t *p, int32_t val) {
+ return (asm("mb;"
+ "1:"
+ "ldl_l %t0, 0(%a0);" /* load old value */
+ "mov %t0, %v0;" /* copy the old value */
+ "addl %t0, %a1, %t0;" /* calculate new value */
+ "stl_c %t0, 0(%a0);" /* attempt to store */
+ "beq %t0, 1b;" /* spin if failed */
+ "mb;",
+ p, val));
+}
+
+/*
+ * This routine atomically stores the value 'val' in 'p'.
+ */
+static inline void
+isc_atomic_store(int32_t *p, int32_t val) {
+ (void)asm("mb;"
+ "1:"
+ "ldl_l %t0, 0(%a0);" /* load old value */
+ "mov %a1, %t0;" /* value to store */
+ "stl_c %t0, 0(%a0);" /* attempt to store */
+ "beq %t0, 1b;" /* spin if failed */
+ "mb;",
+ p, val);
+}
+
+/*
+ * This routine atomically replaces the value in 'p' with 'val', if the
+ * original value is equal to 'cmpval'. The original value is returned in any
+ * case.
+ */
+static inline int32_t
+isc_atomic_cmpxchg(int32_t *p, int32_t cmpval, int32_t val) {
+
+ return(asm("mb;"
+ "1:"
+ "ldl_l %t0, 0(%a0);" /* load old value */
+ "mov %t0, %v0;" /* copy the old value */
+ "cmpeq %t0, %a1, %t0;" /* compare */
+ "beq %t0, 2f;" /* exit if not equal */
+ "mov %a2, %t0;" /* value to store */
+ "stl_c %t0, 0(%a0);" /* attempt to store */
+ "beq %t0, 1b;" /* if it failed, spin */
+ "2:"
+ "mb;",
+ p, cmpval, val));
+}
+#elif defined (ISC_PLATFORM_USEGCCASM)
+static inline int32_t
+isc_atomic_xadd(int32_t *p, int32_t val) {
+ int32_t temp, prev;
+
+ __asm__ volatile(
+ "mb;"
+ "1:"
+ "ldl_l %0, %1;" /* load old value */
+ "mov %0, %2;" /* copy the old value */
+ "addl %0, %3, %0;" /* calculate new value */
+ "stl_c %0, %1;" /* attempt to store */
+ "beq %0, 1b;" /* spin if failed */
+ "mb;"
+ : "=&r"(temp), "+m"(*p), "=&r"(prev)
+ : "r"(val)
+ : "memory");
+
+ return (prev);
+}
+
+static inline void
+isc_atomic_store(int32_t *p, int32_t val) {
+ int32_t temp;
+
+ __asm__ volatile(
+ "mb;"
+ "1:"
+ "ldl_l %0, %1;" /* load old value */
+ "mov %2, %0;" /* value to store */
+ "stl_c %0, %1;" /* attempt to store */
+ "beq %0, 1b;" /* if it failed, spin */
+ "mb;"
+ : "=&r"(temp), "+m"(*p)
+ : "r"(val)
+ : "memory");
+}
+
+static inline int32_t
+isc_atomic_cmpxchg(int32_t *p, int32_t cmpval, int32_t val) {
+ int32_t temp, prev;
+
+ __asm__ volatile(
+ "mb;"
+ "1:"
+ "ldl_l %0, %1;" /* load old value */
+ "mov %0, %2;" /* copy the old value */
+ "cmpeq %0, %3, %0;" /* compare */
+ "beq %0, 2f;" /* exit if not equal */
+ "mov %4, %0;" /* value to store */
+ "stl_c %0, %1;" /* attempt to store */
+ "beq %0, 1b;" /* if it failed, spin */
+ "2:"
+ "mb;"
+ : "=&r"(temp), "+m"(*p), "=&r"(prev)
+ : "r"(cmpval), "r"(val)
+ : "memory");
+
+ return (prev);
+}
+#else
+
+#error "unsupported compiler. disable atomic ops by --disable-atomic"
+
+#endif
+
+#endif /* ISC_ATOMIC_H */
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