diff options
author | tsmith@maint2.mysql.com <> | 2006-09-04 23:05:17 +0200 |
---|---|---|
committer | tsmith@maint2.mysql.com <> | 2006-09-04 23:05:17 +0200 |
commit | 5f5cb7d1f69cbcebbada1059db1b5a3f7bbb335e (patch) | |
tree | 30c11695e7ec04766ed31830ca235369d659d638 /BUILD/check-cpu | |
parent | faad25233682a040c8d726dbfba6fedc2d4f0b6b (diff) | |
parent | 51e4432b79b7fd26668d4f8da2c6a4ffa03d0b4f (diff) | |
download | mariadb-git-5f5cb7d1f69cbcebbada1059db1b5a3f7bbb335e.tar.gz |
Merge maint2.mysql.com:/data/localhome/tsmith/bk/g51
into maint2.mysql.com:/data/localhome/tsmith/bk/51
Diffstat (limited to 'BUILD/check-cpu')
-rwxr-xr-x | BUILD/check-cpu | 375 |
1 files changed, 189 insertions, 186 deletions
diff --git a/BUILD/check-cpu b/BUILD/check-cpu index 2543b540d2a..d85adf21d71 100755 --- a/BUILD/check-cpu +++ b/BUILD/check-cpu @@ -3,213 +3,216 @@ # Check cpu of current machine and find the # best compiler optimization flags for gcc # -# -if test -r /proc/cpuinfo ; then - # on Linux (and others?) we can get detailed CPU information out of /proc - cpuinfo="cat /proc/cpuinfo" +check_cpu () { + if test -r /proc/cpuinfo ; then + # on Linux (and others?) we can get detailed CPU information out of /proc + cpuinfo="cat /proc/cpuinfo" - # detect CPU family - cpu_family=`$cpuinfo | grep 'family' | cut -d ':' -f 2 | cut -d ' ' -f 2 | head -1` - if test -z "$cpu_family" ; then - cpu_family=`$cpuinfo | grep 'cpu' | cut -d ':' -f 2 | cut -d ' ' -f 2 | head -1` - fi + # detect CPU family + cpu_family=`$cpuinfo | grep 'family' | cut -d ':' -f 2 | cut -d ' ' -f 2 | head -1` + if test -z "$cpu_family" ; then + cpu_family=`$cpuinfo | grep 'cpu' | cut -d ':' -f 2 | cut -d ' ' -f 2 | head -1` + fi - # detect CPU vendor and model - cpu_vendor=`$cpuinfo | grep 'vendor_id' | cut -d ':' -f 2 | cut -d ' ' -f 2 | head -1` - model_name=`$cpuinfo | grep 'model name' | cut -d ':' -f 2 | head -1` - if test -z "$model_name" ; then - model_name=`$cpuinfo | grep 'cpu model' | cut -d ':' -f 2 | head -1` - fi + # detect CPU vendor and model + cpu_vendor=`$cpuinfo | grep 'vendor_id' | cut -d ':' -f 2 | cut -d ' ' -f 2 | head -1` + model_name=`$cpuinfo | grep 'model name' | cut -d ':' -f 2 | head -1` + if test -z "$model_name" ; then + model_name=`$cpuinfo | grep 'cpu model' | cut -d ':' -f 2 | head -1` + fi + + # fallback: get CPU model from uname output + if test -z "$model_name" ; then + model_name=`uname -m` + fi - # fallback: get CPU model from uname output - if test -z "$model_name" ; then - model_name=`uname -m` + # parse CPU flags + for flag in `$cpuinfo | grep '^flags' | sed -e 's/^flags.*: //'`; do + eval cpu_flag_$flag=yes + done + else + # Fallback when there is no /proc/cpuinfo + case "`uname -s`" in + FreeBSD|OpenBSD) + cpu_family=`uname -m`; + model_name=`sysctl -n hw.model` + ;; + Darwin) + cpu_family=`uname -p` + model_name=`machine` + ;; + *) + cpu_family=`uname -m`; + model_name=`uname -p`; + ;; + esac fi - # parse CPU flags - for flag in `$cpuinfo | grep '^flags' | sed -e 's/^flags.*: //'`; do - eval cpu_flag_$flag=yes - done -else - # Fallback when there is no /proc/cpuinfo - case "`uname -s`" in - FreeBSD|OpenBSD) - cpu_family=`uname -m`; - model_name=`sysctl -n hw.model` - ;; - Darwin) - cpu_family=`uname -p` - model_name=`machine` + # detect CPU shortname as used by gcc options + # this list is not complete, feel free to add further entries + cpu_arg="" + case "$cpu_family--$model_name" in + # DEC Alpha + Alpha*EV6*) + cpu_arg="ev6"; ;; - *) - cpu_family=`uname -m`; - model_name=`uname -p`; + + # Intel ia32 + *X[eE][oO][nN]*) + # a Xeon is just another pentium4 ... + # ... unless it has the "lm" (long-mode) flag set, + # in that case it's a Xeon with EM64T support + if [ -z "$cpu_flag_lm" ]; then + cpu_arg="pentium4"; + else + cpu_arg="nocona"; + fi ;; - esac -fi - -# detect CPU shortname as used by gcc options -# this list is not complete, feel free to add further entries -cpu_arg="" -case "$cpu_family--$model_name" in - # DEC Alpha - Alpha*EV6*) - cpu_arg="ev6"; + *Pentium*4*Mobile*) + cpu_arg="pentium4m"; ;; - - # Intel ia32 - *X[eE][oO][nN]*) - # a Xeon is just another pentium4 ... - # ... unless it has the "lm" (long-mode) flag set, - # in that case it's a Xeon with EM64T support - if [ -z "$cpu_flag_lm" ]; then + *Pentium*4*) cpu_arg="pentium4"; - else - cpu_arg="nocona"; - fi - ;; - *Pentium*4*Mobile*) - cpu_arg="pentium4m"; - ;; - *Pentium*4*) - cpu_arg="pentium4"; - ;; - *Pentium*III*Mobile*) - cpu_arg="pentium3m"; - ;; - *Pentium*III*) - cpu_arg="pentium3"; - ;; - *Pentium*M*pro*) - cpu_arg="pentium-m"; - ;; - *Athlon*64*) - cpu_arg="athlon64"; - ;; - *Athlon*) - cpu_arg="athlon"; + ;; + *Pentium*III*Mobile*) + cpu_arg="pentium3m"; ;; - *Opteron*) - cpu_arg="opteron"; + *Pentium*III*) + cpu_arg="pentium3"; ;; - # MacOSX / Intel - *i386*i486*) - cpu_arg="pentium-m"; + *Pentium*M*pro*) + cpu_arg="pentium-m"; ;; + *Athlon*64*) + cpu_arg="athlon64"; + ;; + *Athlon*) + cpu_arg="athlon"; + ;; + *Opteron*) + cpu_arg="opteron"; + ;; + # MacOSX / Intel + *i386*i486*) + cpu_arg="pentium-m"; + ;; - # Intel ia64 - *Itanium*) - # Don't need to set any flags for itanium(at the moment) - cpu_arg=""; - ;; + # Intel ia64 + *Itanium*) + # Don't need to set any flags for itanium(at the moment) + cpu_arg=""; + ;; - # - *ppc*) - cpu_arg='powerpc' - ;; - - *powerpc*) - cpu_arg='powerpc' - ;; + # + *ppc*) + cpu_arg='powerpc' + ;; + + *powerpc*) + cpu_arg='powerpc' + ;; - # unknown - *) - cpu_arg=""; - ;; -esac - - -if test -z "$cpu_arg"; then - echo "BUILD/check-cpu: Oops, could not find out what kind of cpu this machine is using." - check_cpu_cflags="" - return -fi - -# different compiler versions have different option names -# for CPU specific command line options -if test -z "$CC" ; then - cc="gcc"; -else - cc=$CC -fi - -cc_ver=`$cc --version | sed 1q` -cc_verno=`echo $cc_ver | sed -e 's/^.*gcc/gcc/g; s/[^0-9. ]//g; s/^ *//g; s/ .*//g'` - -case "$cc_ver--$cc_verno" in - *GCC*) - # different gcc backends (and versions) have different CPU flags - case `gcc -dumpmachine` in - i?86-*) - case "$cc_verno" in - 3.4*|3.5*|4.*) - check_cpu_args='-mtune=$cpu_arg -march=$cpu_arg' - ;; - *) - check_cpu_args='-mcpu=$cpu_arg -march=$cpu_arg' - ;; - esac - ;; - ppc-*) - check_cpu_args='-mcpu=$cpu_arg -mtune=$cpu_arg' - ;; - x86_64-*) - check_cpu_args='-mtune=$cpu_arg' - ;; - *) - check_cpu_cflags="" - return - ;; - esac - ;; - 2.95.*) - # GCC 2.95 doesn't expose its name in --version output - check_cpu_args='-m$cpu_arg' - ;; - *) + # unknown + *) + cpu_arg=""; + ;; + esac + + + if test -z "$cpu_arg"; then + echo "BUILD/check-cpu: Oops, could not find out what kind of cpu this machine is using." >&2 check_cpu_cflags="" return - ;; -esac - -# now we check whether the compiler really understands the cpu type -touch __test.c - -while [ "$cpu_arg" ] ; do - echo -n testing $cpu_arg "... " - - # compile check - check_cpu_cflags=`eval echo $check_cpu_args` - if $cc -c $check_cpu_cflags __test.c 2>/dev/null; then - echo ok - break; fi - echo failed - check_cpu_cflags="" + # different compiler versions have different option names + # for CPU specific command line options + if test -z "$CC" ; then + cc="gcc"; + else + cc=$CC + fi - # if compile failed: check whether it supports a predecessor of this CPU - # this list is not complete, feel free to add further entries - case "$cpu_arg" in - # Intel ia32 - nocona) cpu_arg=pentium4 ;; - prescott) cpu_arg=pentium4 ;; - pentium4m) cpu_arg=pentium4 ;; - pentium4) cpu_arg=pentium3 ;; - pentium3m) cpu_arg=pentium3 ;; - pentium3) cpu_arg=pentium2 ;; - pentium2) cpu_arg=pentiumpro ;; - pentiumpro) cpu_arg=pentium ;; - pentium) cpu_arg=i486 ;; - i486) cpu_arg=i386 ;; - - # power / powerPC - 7450) cpu_arg=7400 ;; - - *) cpu_arg="" ;; + cc_ver=`$cc --version | sed 1q` + cc_verno=`echo $cc_ver | sed -e 's/^.*gcc/gcc/g; s/[^0-9. ]//g; s/^ *//g; s/ .*//g'` + + case "$cc_ver--$cc_verno" in + *GCC*) + # different gcc backends (and versions) have different CPU flags + case `gcc -dumpmachine` in + i?86-*) + case "$cc_verno" in + 3.4*|3.5*|4.*) + check_cpu_args='-mtune=$cpu_arg -march=$cpu_arg' + ;; + *) + check_cpu_args='-mcpu=$cpu_arg -march=$cpu_arg' + ;; + esac + ;; + ppc-*) + check_cpu_args='-mcpu=$cpu_arg -mtune=$cpu_arg' + ;; + x86_64-*) + check_cpu_args='-mtune=$cpu_arg' + ;; + *) + check_cpu_cflags="" + return + ;; + esac + ;; + 2.95.*) + # GCC 2.95 doesn't expose its name in --version output + check_cpu_args='-m$cpu_arg' + ;; + *) + check_cpu_cflags="" + return + ;; esac -done -rm __test.* + # now we check whether the compiler really understands the cpu type + touch __test.c + + while [ "$cpu_arg" ] ; do + # FIXME: echo -n isn't portable - see contortions autoconf goes through + echo -n testing $cpu_arg "... " >&2 + + # compile check + check_cpu_cflags=`eval echo $check_cpu_args` + if $cc -c $check_cpu_cflags __test.c 2>/dev/null; then + echo ok >&2 + break; + fi + + echo failed >&2 + check_cpu_cflags="" + # if compile failed: check whether it supports a predecessor of this CPU + # this list is not complete, feel free to add further entries + case "$cpu_arg" in + # Intel ia32 + nocona) cpu_arg=pentium4 ;; + prescott) cpu_arg=pentium4 ;; + pentium4m) cpu_arg=pentium4 ;; + pentium4) cpu_arg=pentium3 ;; + pentium3m) cpu_arg=pentium3 ;; + pentium3) cpu_arg=pentium2 ;; + pentium2) cpu_arg=pentiumpro ;; + pentiumpro) cpu_arg=pentium ;; + pentium) cpu_arg=i486 ;; + i486) cpu_arg=i386 ;; + + # power / powerPC + 7450) cpu_arg=7400 ;; + + *) cpu_arg="" ;; + esac + done + + rm __test.* +} + +check_cpu |