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authorAndersBroman <anders.broman@ericsson.com>2014-06-10 14:19:20 +0200
committerAnders Broman <a.broman58@gmail.com>2014-06-10 12:22:41 +0000
commit99d8c1cce54c656001037a1d805fa968b125794a (patch)
tree0b521248bd393c9ff22a6ef623bd79f139ae2d53 /aclocal-fallback
parente7fbf05b484f4537783293271f2f08e28facf21c (diff)
downloadwireshark-99d8c1cce54c656001037a1d805fa968b125794a.tar.gz
Add macros to make it possible to define HAVE_SSE4_2
Change-Id: I63ecfde72f33350d15c430da71fa11ac4923a121 Reviewed-on: https://code.wireshark.org/review/2109 Reviewed-by: Anders Broman <a.broman58@gmail.com>
Diffstat (limited to 'aclocal-fallback')
-rw-r--r--aclocal-fallback/ax_check_compile_flag.m475
-rw-r--r--aclocal-fallback/ax_ext.m4222
-rw-r--r--aclocal-fallback/ax_gcc_x86_avx_xgetbv.m480
-rw-r--r--aclocal-fallback/ax_gcc_x86_cpuid.m480
4 files changed, 457 insertions, 0 deletions
diff --git a/aclocal-fallback/ax_check_compile_flag.m4 b/aclocal-fallback/ax_check_compile_flag.m4
new file mode 100644
index 0000000000..979f904303
--- /dev/null
+++ b/aclocal-fallback/ax_check_compile_flag.m4
@@ -0,0 +1,75 @@
+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
+#
+# DESCRIPTION
+#
+# Check whether the given FLAG works with the current language's compiler
+# or gives an error. (Warnings, however, are ignored)
+#
+# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
+# success/failure.
+#
+# If EXTRA-FLAGS is defined, it is added to the current language's default
+# flags (e.g. CFLAGS) when the check is done. The check is thus made with
+# the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to
+# force the compiler to issue an error when a bad flag is given.
+#
+# INPUT gives an alternative input source to AC_COMPILE_IFELSE.
+#
+# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
+# macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
+#
+# LICENSE
+#
+# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
+# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation, either version 3 of the License, or (at your
+# option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+# Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception, the respective Autoconf Macro's copyright owner
+# gives unlimited permission to copy, distribute and modify the configure
+# scripts that are the output of Autoconf when processing the Macro. You
+# need not follow the terms of the GNU General Public License when using
+# or distributing such scripts, even though portions of the text of the
+# Macro appear in them. The GNU General Public License (GPL) does govern
+# all other use of the material that constitutes the Autoconf Macro.
+#
+# This special exception to the GPL applies to versions of the Autoconf
+# Macro released by the Autoconf Archive. When you make and distribute a
+# modified version of the Autoconf Macro, you may extend this special
+# exception to the GPL to apply to your modified version as well.
+
+#serial 3
+
+AC_DEFUN([AX_CHECK_COMPILE_FLAG],
+[AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX
+AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
+AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
+ ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
+ _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
+ AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
+ [AS_VAR_SET(CACHEVAR,[yes])],
+ [AS_VAR_SET(CACHEVAR,[no])])
+ _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
+AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes],
+ [m4_default([$2], :)],
+ [m4_default([$3], :)])
+AS_VAR_POPDEF([CACHEVAR])dnl
+])dnl AX_CHECK_COMPILE_FLAGS
+
diff --git a/aclocal-fallback/ax_ext.m4 b/aclocal-fallback/ax_ext.m4
new file mode 100644
index 0000000000..a597925387
--- /dev/null
+++ b/aclocal-fallback/ax_ext.m4
@@ -0,0 +1,222 @@
+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_ext.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_EXT
+#
+# DESCRIPTION
+#
+# Find supported SIMD extensions by requesting cpuid. When an SIMD
+# extension is found, the -m"simdextensionname" is added to SIMD_FLAGS if
+# compiler supports it. For example, if "sse2" is available, then "-msse2"
+# is added to SIMD_FLAGS.
+#
+# This macro calls:
+#
+# AC_SUBST(SIMD_FLAGS)
+#
+# And defines:
+#
+# HAVE_MMX / HAVE_SSE / HAVE_SSE2 / HAVE_SSE3 / HAVE_SSSE3 / HAVE_SSE4.1 / HAVE_SSE4.2 / HAVE_AVX
+#
+# LICENSE
+#
+# Copyright (c) 2007 Christophe Tournayre <turn3r@users.sourceforge.net>
+# Copyright (c) 2013 Michael Petch <mpetch@capp-sysware.com>
+#
+# Copying and distribution of this file, with or without modification, are
+# permitted in any medium without royalty provided the copyright notice
+# and this notice are preserved. This file is offered as-is, without any
+# warranty.
+
+#serial 12
+
+AC_DEFUN([AX_EXT],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+
+ case $host_cpu in
+ i[[3456]]86*|x86_64*|amd64*)
+
+ AC_REQUIRE([AX_GCC_X86_CPUID])
+ AC_REQUIRE([AX_GCC_X86_AVX_XGETBV])
+
+ AX_GCC_X86_CPUID(0x00000001)
+ ecx=`echo $ax_cv_gcc_x86_cpuid_0x00000001 | cut -d ":" -f 3`
+ edx=`echo $ax_cv_gcc_x86_cpuid_0x00000001 | cut -d ":" -f 4`
+
+ AC_CACHE_CHECK([whether mmx is supported], [ax_cv_have_mmx_ext],
+ [
+ ax_cv_have_mmx_ext=no
+ if test "$((0x$edx>>23&0x01))" = 1; then
+ ax_cv_have_mmx_ext=yes
+ fi
+ ])
+
+ AC_CACHE_CHECK([whether sse is supported], [ax_cv_have_sse_ext],
+ [
+ ax_cv_have_sse_ext=no
+ if test "$((0x$edx>>25&0x01))" = 1; then
+ ax_cv_have_sse_ext=yes
+ fi
+ ])
+
+ AC_CACHE_CHECK([whether sse2 is supported], [ax_cv_have_sse2_ext],
+ [
+ ax_cv_have_sse2_ext=no
+ if test "$((0x$edx>>26&0x01))" = 1; then
+ ax_cv_have_sse2_ext=yes
+ fi
+ ])
+
+ AC_CACHE_CHECK([whether sse3 is supported], [ax_cv_have_sse3_ext],
+ [
+ ax_cv_have_sse3_ext=no
+ if test "$((0x$ecx&0x01))" = 1; then
+ ax_cv_have_sse3_ext=yes
+ fi
+ ])
+
+ AC_CACHE_CHECK([whether ssse3 is supported], [ax_cv_have_ssse3_ext],
+ [
+ ax_cv_have_ssse3_ext=no
+ if test "$((0x$ecx>>9&0x01))" = 1; then
+ ax_cv_have_ssse3_ext=yes
+ fi
+ ])
+
+ AC_CACHE_CHECK([whether sse4.1 is supported], [ax_cv_have_sse41_ext],
+ [
+ ax_cv_have_sse41_ext=no
+ if test "$((0x$ecx>>19&0x01))" = 1; then
+ ax_cv_have_sse41_ext=yes
+ fi
+ ])
+
+ AC_CACHE_CHECK([whether sse4.2 is supported], [ax_cv_have_sse42_ext],
+ [
+ ax_cv_have_sse42_ext=no
+ if test "$((0x$ecx>>20&0x01))" = 1; then
+ ax_cv_have_sse42_ext=yes
+ fi
+ ])
+
+ AC_CACHE_CHECK([whether avx is supported by processor], [ax_cv_have_avx_cpu_ext],
+ [
+ ax_cv_have_avx_cpu_ext=no
+ if test "$((0x$ecx>>28&0x01))" = 1; then
+ ax_cv_have_avx_cpu_ext=yes
+ fi
+ ])
+
+ if test x"$ax_cv_have_avx_cpu_ext" = x"yes"; then
+ AX_GCC_X86_AVX_XGETBV(0x00000000)
+
+ xgetbv_eax="0"
+ if test x"$ax_cv_gcc_x86_avx_xgetbv_0x00000000" != x"unknown"; then
+ xgetbv_eax=`echo $ax_cv_gcc_x86_avx_xgetbv_0x00000000 | cut -d ":" -f 1`
+ fi
+
+ AC_CACHE_CHECK([whether avx is supported by operating system], [ax_cv_have_avx_ext],
+ [
+ ax_cv_have_avx_ext=no
+
+ if test "$((0x$ecx>>27&0x01))" = 1; then
+ if test "$((0x$xgetbv_eax&0x6))" = 6; then
+ ax_cv_have_avx_ext=yes
+ fi
+ fi
+ ])
+ if test x"$ax_cv_have_avx_ext" = x"no"; then
+ AC_MSG_WARN([Your processor supports AVX, but your operating system doesn't])
+ fi
+ fi
+
+ if test "$ax_cv_have_mmx_ext" = yes; then
+ AX_CHECK_COMPILE_FLAG(-mmmx, ax_cv_support_mmx_ext=yes, [])
+ if test x"$ax_cv_support_mmx_ext" = x"yes"; then
+ SIMD_FLAGS="$SIMD_FLAGS -mmmx"
+ AC_DEFINE(HAVE_MMX,,[Support mmx instructions])
+ else
+ AC_MSG_WARN([Your processor supports mmx instructions but not your compiler, can you try another compiler?])
+ fi
+ fi
+
+ if test "$ax_cv_have_sse_ext" = yes; then
+ AX_CHECK_COMPILE_FLAG(-msse, ax_cv_support_sse_ext=yes, [])
+ if test x"$ax_cv_support_sse_ext" = x"yes"; then
+ SIMD_FLAGS="$SIMD_FLAGS -msse"
+ AC_DEFINE(HAVE_SSE,,[Support SSE (Streaming SIMD Extensions) instructions])
+ else
+ AC_MSG_WARN([Your processor supports sse instructions but not your compiler, can you try another compiler?])
+ fi
+ fi
+
+ if test "$ax_cv_have_sse2_ext" = yes; then
+ AX_CHECK_COMPILE_FLAG(-msse2, ax_cv_support_sse2_ext=yes, [])
+ if test x"$ax_cv_support_sse2_ext" = x"yes"; then
+ SIMD_FLAGS="$SIMD_FLAGS -msse2"
+ AC_DEFINE(HAVE_SSE2,,[Support SSE2 (Streaming SIMD Extensions 2) instructions])
+ else
+ AC_MSG_WARN([Your processor supports sse2 instructions but not your compiler, can you try another compiler?])
+ fi
+ fi
+
+ if test "$ax_cv_have_sse3_ext" = yes; then
+ AX_CHECK_COMPILE_FLAG(-msse3, ax_cv_support_sse3_ext=yes, [])
+ if test x"$ax_cv_support_sse3_ext" = x"yes"; then
+ SIMD_FLAGS="$SIMD_FLAGS -msse3"
+ AC_DEFINE(HAVE_SSE3,,[Support SSE3 (Streaming SIMD Extensions 3) instructions])
+ else
+ AC_MSG_WARN([Your processor supports sse3 instructions but not your compiler, can you try another compiler?])
+ fi
+ fi
+
+ if test "$ax_cv_have_ssse3_ext" = yes; then
+ AX_CHECK_COMPILE_FLAG(-mssse3, ax_cv_support_ssse3_ext=yes, [])
+ if test x"$ax_cv_support_ssse3_ext" = x"yes"; then
+ SIMD_FLAGS="$SIMD_FLAGS -mssse3"
+ AC_DEFINE(HAVE_SSSE3,,[Support SSSE3 (Supplemental Streaming SIMD Extensions 3) instructions])
+ else
+ AC_MSG_WARN([Your processor supports ssse3 instructions but not your compiler, can you try another compiler?])
+ fi
+ fi
+
+ if test "$ax_cv_have_sse41_ext" = yes; then
+ AX_CHECK_COMPILE_FLAG(-msse4.1, ax_cv_support_sse41_ext=yes, [])
+ if test x"$ax_cv_support_sse41_ext" = x"yes"; then
+ SIMD_FLAGS="$SIMD_FLAGS -msse4.1"
+ AC_DEFINE(HAVE_SSE4_1,,[Support SSSE4.1 (Streaming SIMD Extensions 4.1) instructions])
+ else
+ AC_MSG_WARN([Your processor supports sse4.1 instructions but not your compiler, can you try another compiler?])
+ fi
+ fi
+
+ if test "$ax_cv_have_sse42_ext" = yes; then
+ AX_CHECK_COMPILE_FLAG(-msse4.2, ax_cv_support_sse42_ext=yes, [])
+ if test x"$ax_cv_support_sse42_ext" = x"yes"; then
+ SIMD_FLAGS="$SIMD_FLAGS -msse4.2"
+ AC_DEFINE(HAVE_SSE4_2,,[Support SSSE4.2 (Streaming SIMD Extensions 4.2) instructions])
+ else
+ AC_MSG_WARN([Your processor supports sse4.2 instructions but not your compiler, can you try another compiler?])
+ fi
+ fi
+
+ if test "$ax_cv_have_avx_ext" = yes; then
+ AX_CHECK_COMPILE_FLAG(-mavx, ax_cv_support_avx_ext=yes, [])
+ if test x"$ax_cv_support_avx_ext" = x"yes"; then
+ SIMD_FLAGS="$SIMD_FLAGS -mavx"
+ AC_DEFINE(HAVE_AVX,,[Support AVX (Advanced Vector Extensions) instructions])
+ else
+ AC_MSG_WARN([Your processor supports avx instructions but not your compiler, can you try another compiler?])
+ fi
+ fi
+
+ ;;
+ esac
+
+ AC_SUBST(SIMD_FLAGS)
+])
+
diff --git a/aclocal-fallback/ax_gcc_x86_avx_xgetbv.m4 b/aclocal-fallback/ax_gcc_x86_avx_xgetbv.m4
new file mode 100644
index 0000000000..d7ceac2acf
--- /dev/null
+++ b/aclocal-fallback/ax_gcc_x86_avx_xgetbv.m4
@@ -0,0 +1,80 @@
+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_gcc_x86_avx_xgetbv.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_GCC_X86_AVX_XGETBV
+#
+# DESCRIPTION
+#
+# On later x86 processors with AVX SIMD support, with gcc or a compiler
+# that has a compatible syntax for inline assembly instructions, run a
+# small program that executes the xgetbv instruction with input OP. This
+# can be used to detect if the OS supports AVX instruction usage.
+#
+# On output, the values of the eax and edx registers are stored as
+# hexadecimal strings as "eax:edx" in the cache variable
+# ax_cv_gcc_x86_avx_xgetbv.
+#
+# If the xgetbv instruction fails (because you are running a
+# cross-compiler, or because you are not using gcc, or because you are on
+# a processor that doesn't have this instruction),
+# ax_cv_gcc_x86_avx_xgetbv_OP is set to the string "unknown".
+#
+# This macro mainly exists to be used in AX_EXT.
+#
+# LICENSE
+#
+# Copyright (c) 2013 Michael Petch <mpetch@capp-sysware.com>
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation, either version 3 of the License, or (at your
+# option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+# Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception, the respective Autoconf Macro's copyright owner
+# gives unlimited permission to copy, distribute and modify the configure
+# scripts that are the output of Autoconf when processing the Macro. You
+# need not follow the terms of the GNU General Public License when using
+# or distributing such scripts, even though portions of the text of the
+# Macro appear in them. The GNU General Public License (GPL) does govern
+# all other use of the material that constitutes the Autoconf Macro.
+#
+# This special exception to the GPL applies to versions of the Autoconf
+# Macro released by the Autoconf Archive. When you make and distribute a
+# modified version of the Autoconf Macro, you may extend this special
+# exception to the GPL to apply to your modified version as well.
+
+#serial 1
+
+AC_DEFUN([AX_GCC_X86_AVX_XGETBV],
+[AC_REQUIRE([AC_PROG_CC])
+AC_LANG_PUSH([C])
+AC_CACHE_CHECK(for x86-AVX xgetbv $1 output, ax_cv_gcc_x86_avx_xgetbv_$1,
+ [AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>], [
+ int op = $1, eax, edx;
+ FILE *f;
+ /* Opcodes for xgetbv */
+ __asm__(".byte 0x0f, 0x01, 0xd0"
+ : "=a" (eax), "=d" (edx)
+ : "c" (op));
+ f = fopen("conftest_xgetbv", "w"); if (!f) return 1;
+ fprintf(f, "%x:%x\n", eax, edx);
+ fclose(f);
+ return 0;
+])],
+ [ax_cv_gcc_x86_avx_xgetbv_$1=`cat conftest_xgetbv`; rm -f conftest_xgetbv],
+ [ax_cv_gcc_x86_avx_xgetbv_$1=unknown; rm -f conftest_xgetbv],
+ [ax_cv_gcc_x86_avx_xgetbv_$1=unknown])])
+AC_LANG_POP([C])
+])
+
diff --git a/aclocal-fallback/ax_gcc_x86_cpuid.m4 b/aclocal-fallback/ax_gcc_x86_cpuid.m4
new file mode 100644
index 0000000000..062d0f14c0
--- /dev/null
+++ b/aclocal-fallback/ax_gcc_x86_cpuid.m4
@@ -0,0 +1,80 @@
+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_gcc_x86_cpuid.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_GCC_X86_CPUID(OP)
+#
+# DESCRIPTION
+#
+# On Pentium and later x86 processors, with gcc or a compiler that has a
+# compatible syntax for inline assembly instructions, run a small program
+# that executes the cpuid instruction with input OP. This can be used to
+# detect the CPU type.
+#
+# On output, the values of the eax, ebx, ecx, and edx registers are stored
+# as hexadecimal strings as "eax:ebx:ecx:edx" in the cache variable
+# ax_cv_gcc_x86_cpuid_OP.
+#
+# If the cpuid instruction fails (because you are running a
+# cross-compiler, or because you are not using gcc, or because you are on
+# a processor that doesn't have this instruction), ax_cv_gcc_x86_cpuid_OP
+# is set to the string "unknown".
+#
+# This macro mainly exists to be used in AX_GCC_ARCHFLAG.
+#
+# LICENSE
+#
+# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
+# Copyright (c) 2008 Matteo Frigo
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation, either version 3 of the License, or (at your
+# option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+# Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# As a special exception, the respective Autoconf Macro's copyright owner
+# gives unlimited permission to copy, distribute and modify the configure
+# scripts that are the output of Autoconf when processing the Macro. You
+# need not follow the terms of the GNU General Public License when using
+# or distributing such scripts, even though portions of the text of the
+# Macro appear in them. The GNU General Public License (GPL) does govern
+# all other use of the material that constitutes the Autoconf Macro.
+#
+# This special exception to the GPL applies to versions of the Autoconf
+# Macro released by the Autoconf Archive. When you make and distribute a
+# modified version of the Autoconf Macro, you may extend this special
+# exception to the GPL to apply to your modified version as well.
+
+#serial 7
+
+AC_DEFUN([AX_GCC_X86_CPUID],
+[AC_REQUIRE([AC_PROG_CC])
+AC_LANG_PUSH([C])
+AC_CACHE_CHECK(for x86 cpuid $1 output, ax_cv_gcc_x86_cpuid_$1,
+ [AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>], [
+ int op = $1, eax, ebx, ecx, edx;
+ FILE *f;
+ __asm__("cpuid"
+ : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
+ : "a" (op));
+ f = fopen("conftest_cpuid", "w"); if (!f) return 1;
+ fprintf(f, "%x:%x:%x:%x\n", eax, ebx, ecx, edx);
+ fclose(f);
+ return 0;
+])],
+ [ax_cv_gcc_x86_cpuid_$1=`cat conftest_cpuid`; rm -f conftest_cpuid],
+ [ax_cv_gcc_x86_cpuid_$1=unknown; rm -f conftest_cpuid],
+ [ax_cv_gcc_x86_cpuid_$1=unknown])])
+AC_LANG_POP([C])
+])
+