diff options
Diffstat (limited to '')
| -rw-r--r-- | lib/isc/mips/Makefile.in | 17 | ||||
| -rw-r--r-- | lib/isc/mips/include/Makefile.in | 17 | ||||
| -rw-r--r-- | lib/isc/mips/include/isc/Makefile.in | 34 | ||||
| -rw-r--r-- | lib/isc/mips/include/isc/atomic.h | 90 |
4 files changed, 158 insertions, 0 deletions
diff --git a/lib/isc/mips/Makefile.in b/lib/isc/mips/Makefile.in new file mode 100644 index 0000000..419cf9f --- /dev/null +++ b/lib/isc/mips/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/mips/include/Makefile.in b/lib/isc/mips/include/Makefile.in new file mode 100644 index 0000000..d33c0fc --- /dev/null +++ b/lib/isc/mips/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/mips/include/isc/Makefile.in b/lib/isc/mips/include/isc/Makefile.in new file mode 100644 index 0000000..97b6b41 --- /dev/null +++ b/lib/isc/mips/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/mips/include/isc/atomic.h b/lib/isc/mips/include/isc/atomic.h new file mode 100644 index 0000000..caba82f --- /dev/null +++ b/lib/isc/mips/include/isc/atomic.h @@ -0,0 +1,90 @@ +/* + * 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. + */ + + +#ifndef ISC_ATOMIC_H +#define ISC_ATOMIC_H 1 + +#include <inttypes.h> + +#include <isc/platform.h> +#include <isc/types.h> + +#ifdef ISC_PLATFORM_USEGCCASM +/* + * This routine atomically increments the value stored in 'p' by 'val', and + * returns the previous value. + */ +static inline int32_t +isc_atomic_xadd(int32_t *p, int val) { + int32_t orig; + + __asm__ __volatile__ ( + " .set push \n" + " .set mips2 \n" + " .set noreorder \n" + " .set noat \n" + "1: ll $1, %1 \n" + " addu %0, $1, %2 \n" + " sc %0, %1 \n" + " beqz %0, 1b \n" + " move %0, $1 \n" + " .set pop \n" + : "=&r" (orig), "+R" (*p) + : "r" (val) + : "memory"); + + return (orig); +} + +/* + * This routine atomically stores the value 'val' in 'p'. + */ +static inline void +isc_atomic_store(int32_t *p, int32_t val) { + *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, int cmpval, int val) { + int32_t orig; + int32_t tmp; + + __asm__ __volatile__ ( + " .set push \n" + " .set mips2 \n" + " .set noreorder \n" + " .set noat \n" + "1: ll $1, %1 \n" + " bne $1, %3, 2f \n" + " move %2, %4 \n" + " sc %2, %1 \n" + " beqz %2, 1b \n" + "2: move %0, $1 \n" + " .set pop \n" + : "=&r"(orig), "+R" (*p), "=r" (tmp) + : "r"(cmpval), "r"(val) + : "memory"); + + return (orig); +} + +#else /* !ISC_PLATFORM_USEGCCASM */ + +#error "unsupported compiler. disable atomic ops by --disable-atomic" + +#endif +#endif /* ISC_ATOMIC_H */ |