diff options
Diffstat (limited to 'lib/isc/x86_32')
| -rw-r--r-- | lib/isc/x86_32/Makefile.in | 24 | ||||
| -rw-r--r-- | lib/isc/x86_32/include/Makefile.in | 24 | ||||
| -rw-r--r-- | lib/isc/x86_32/include/isc/Makefile.in | 36 | ||||
| -rw-r--r-- | lib/isc/x86_32/include/isc/atomic.h | 158 |
4 files changed, 242 insertions, 0 deletions
diff --git a/lib/isc/x86_32/Makefile.in b/lib/isc/x86_32/Makefile.in new file mode 100644 index 0000000..c8e77e4 --- /dev/null +++ b/lib/isc/x86_32/Makefile.in @@ -0,0 +1,24 @@ +# Copyright (C) 2007 Internet Systems Consortium, Inc. ("ISC") +# +# Permission to use, copy, modify, and/or distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH +# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, +# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM +# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE +# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR +# PERFORMANCE OF THIS SOFTWARE. + +# $Id: Makefile.in,v 1.2.2.1 2007/09/14 04:26:38 marka Exp $ + +srcdir = @srcdir@ +VPATH = @srcdir@ +top_srcdir = @top_srcdir@ + +SUBDIRS = include +TARGETS = + +@BIND9_MAKE_RULES@ diff --git a/lib/isc/x86_32/include/Makefile.in b/lib/isc/x86_32/include/Makefile.in new file mode 100644 index 0000000..b68a765 --- /dev/null +++ b/lib/isc/x86_32/include/Makefile.in @@ -0,0 +1,24 @@ +# Copyright (C) 2007 Internet Systems Consortium, Inc. ("ISC") +# +# Permission to use, copy, modify, and/or distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH +# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, +# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM +# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE +# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR +# PERFORMANCE OF THIS SOFTWARE. + +# $Id: Makefile.in,v 1.2.2.1 2007/09/14 04:26:39 marka Exp $ + +srcdir = @srcdir@ +VPATH = @srcdir@ +top_srcdir = @top_srcdir@ + +SUBDIRS = isc +TARGETS = + +@BIND9_MAKE_RULES@ diff --git a/lib/isc/x86_32/include/isc/Makefile.in b/lib/isc/x86_32/include/isc/Makefile.in new file mode 100644 index 0000000..4ce057a --- /dev/null +++ b/lib/isc/x86_32/include/isc/Makefile.in @@ -0,0 +1,36 @@ +# Copyright (C) 2007 Internet Systems Consortium, Inc. ("ISC") +# +# Permission to use, copy, modify, and/or distribute this software for any +# purpose with or without fee is hereby granted, provided that the above +# copyright notice and this permission notice appear in all copies. +# +# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH +# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, +# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM +# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE +# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR +# PERFORMANCE OF THIS SOFTWARE. + +# $Id: Makefile.in,v 1.2.2.1 2007/09/14 04:26:39 marka Exp $ + +srcdir = @srcdir@ +VPATH = @srcdir@ +top_srcdir = @top_srcdir@ + +@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 ; \ + done diff --git a/lib/isc/x86_32/include/isc/atomic.h b/lib/isc/x86_32/include/isc/atomic.h new file mode 100644 index 0000000..f3136d9 --- /dev/null +++ b/lib/isc/x86_32/include/isc/atomic.h @@ -0,0 +1,158 @@ +/* + * Copyright (C) 2005 Internet Systems Consortium, Inc. ("ISC") + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH + * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, + * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE + * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +/* $Id: atomic.h,v 1.2.2.3 2005/07/27 04:23:33 marka Exp $ */ + +#ifndef ISC_ATOMIC_H +#define ISC_ATOMIC_H 1 + +#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 isc_int32_t +isc_atomic_xadd(isc_int32_t *p, isc_int32_t val) { + isc_int32_t prev = val; + + __asm__ volatile( +#ifdef ISC_PLATFORM_USETHREADS + "lock;" +#endif + "xadd %0, %1" + :"=q"(prev) + :"m"(*p), "0"(prev) + :"memory", "cc"); + + return (prev); +} + +/* + * This routine atomically stores the value 'val' in 'p'. + */ +static inline void +isc_atomic_store(isc_int32_t *p, isc_int32_t val) { + __asm__ volatile( +#ifdef ISC_PLATFORM_USETHREADS + /* + * xchg should automatically lock memory, but we add it + * explicitly just in case (it at least doesn't harm) + */ + "lock;" +#endif + + "xchgl %1, %0" + : + : "r"(val), "m"(*p) + : "memory"); +} + +/* + * 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 isc_int32_t +isc_atomic_cmpxchg(isc_int32_t *p, isc_int32_t cmpval, isc_int32_t val) { + __asm__ volatile( +#ifdef ISC_PLATFORM_USETHREADS + "lock;" +#endif + "cmpxchgl %1, %2" + : "=a"(cmpval) + : "r"(val), "m"(*p), "a"(cmpval) + : "memory"); + + return (cmpval); +} + +#elif defined(ISC_PLATFORM_USESTDASM) +/* + * The followings are "generic" assembly code which implements the same + * functionality in case the gcc extension cannot be used. It should be + * better to avoid inlining below, since we directly refer to specific + * positions of the stack frame, which would not actually point to the + * intended address in the embedded mnemonic. + */ +#include <isc/util.h> /* for 'UNUSED' macro */ + +static isc_int32_t +isc_atomic_xadd(isc_int32_t *p, isc_int32_t val) { + UNUSED(p); + UNUSED(val); + + __asm ( + "movl 8(%ebp), %ecx\n" + "movl 12(%ebp), %edx\n" +#ifdef ISC_PLATFORM_USETHREADS + "lock;" +#endif + "xadd %edx, (%ecx)\n" + + /* + * set the return value directly in the register so that we + * can avoid guessing the correct position in the stack for a + * local variable. + */ + "movl %edx, %eax" + ); +} + +static void +isc_atomic_store(isc_int32_t *p, isc_int32_t val) { + UNUSED(p); + UNUSED(val); + + __asm ( + "movl 8(%ebp), %ecx\n" + "movl 12(%ebp), %edx\n" +#ifdef ISC_PLATFORM_USETHREADS + "lock;" +#endif + "xchgl (%ecx), %edx\n" + ); +} + +static isc_int32_t +isc_atomic_cmpxchg(isc_int32_t *p, isc_int32_t cmpval, isc_int32_t val) { + UNUSED(p); + UNUSED(cmpval); + UNUSED(val); + + __asm ( + "movl 8(%ebp), %ecx\n" + "movl 12(%ebp), %eax\n" /* must be %eax for cmpxchgl */ + "movl 16(%ebp), %edx\n" +#ifdef ISC_PLATFORM_USETHREADS + "lock;" +#endif + + /* + * If (%ecx) == %eax then (%ecx) := %edx. + % %eax is set to old (%ecx), which will be the return value. + */ + "cmpxchgl %edx, (%ecx)" + ); +} +#else /* !ISC_PLATFORM_USEGCCASM && !ISC_PLATFORM_USESTDASM */ + +#error "unsupported compiler. disable atomic ops by --disable-atomic" + +#endif +#endif /* ISC_ATOMIC_H */ |
