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authortsmith@maint2.mysql.com <>2006-09-04 23:05:17 +0200
committertsmith@maint2.mysql.com <>2006-09-04 23:05:17 +0200
commit5f5cb7d1f69cbcebbada1059db1b5a3f7bbb335e (patch)
tree30c11695e7ec04766ed31830ca235369d659d638 /BUILD/check-cpu
parentfaad25233682a040c8d726dbfba6fedc2d4f0b6b (diff)
parent51e4432b79b7fd26668d4f8da2c6a4ffa03d0b4f (diff)
downloadmariadb-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-xBUILD/check-cpu375
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