diff options
Diffstat (limited to 'BUILD/check-cpu')
| -rwxr-xr-x | BUILD/check-cpu | 145 |
1 files changed, 63 insertions, 82 deletions
diff --git a/BUILD/check-cpu b/BUILD/check-cpu index 0720a53c54d..45dd8404f0d 100755 --- a/BUILD/check-cpu +++ b/BUILD/check-cpu @@ -2,6 +2,9 @@ # # Check cpu of current machine and find the # best compiler optimization flags for gcc +# Will return result in: +# cpu_arg : Type of CPU +# check_cpu_args : Arguments for GCC compiler settings # check_cpu () { @@ -33,7 +36,7 @@ check_cpu () { # parse CPU flags for flag in `$cpuinfo | grep '^flags' | sed -e 's/^flags.*: //' -e 's/[^a-zA-Z0-9_ ]/_/g'`; do - eval cpu_flag_$flag=yes + eval cpu_flag_$flag=yes done else # Fallback when there is no /proc/cpuinfo @@ -62,92 +65,95 @@ check_cpu () { Alpha*EV6*) cpu_arg="ev6"; ;; - # Intel ia32 *Intel*Core*|*X[eE][oO][nN]*) # a Xeon is just another pentium4 ... # ... unless it has the "lm" (long-mode) flag set, # in that case it's a Xeon with EM64T support + # If SSE3 support exists it is a Core2 Duo or newer # So is Intel Core. - if [ -z "$cpu_flag_lm" ]; then - cpu_arg="pentium4"; - else - cpu_arg="nocona"; + if [ -z "$cpu_flag_lm" ]; then + cpu_arg="pentium4" + else + cpu_arg="nocona" + fi + if test -z "$cpu_flag_ssse3" ; then + core2="no" + else + core2="yes" fi ;; *Pentium*4*Mobile*) - cpu_arg="pentium4m"; - ;; + cpu_arg="pentium4m" + ;; *Pentium*4*) - cpu_arg="pentium4"; + cpu_arg="pentium4" ;; *Pentium*III*Mobile*) - cpu_arg="pentium3m"; - ;; + cpu_arg="pentium3m" + ;; *Pentium*III*) - cpu_arg="pentium3"; - ;; + cpu_arg="pentium3" + ;; *Pentium*M*pro*) - cpu_arg="pentium-m"; + cpu_arg="pentium-m" ;; *Celeron\(R\)*\ M*) - cpu_arg="pentium-m"; - ;; + cpu_arg="pentium-m" + ;; *Celeron*Coppermine*) cpu_arg="pentium3" - ;; + ;; *Celeron\(R\)*) cpu_arg="pentium4" - ;; + ;; *Celeron*) - cpu_arg="pentium2"; - ;; - *Athlon*64*) - cpu_arg="athlon64"; + cpu_arg="pentium2" ;; *Turion*) - cpu_arg="athlon64"; + cpu_arg="athlon64" ;; - *Opteron*) - cpu_arg="athlon64"; + *Athlon*64*) + cpu_arg="athlon64" ;; *Athlon*) - cpu_arg="athlon"; + cpu_arg="athlon" ;; *Opteron*) - cpu_arg="opteron"; + cpu_arg="opteron" ;; # MacOSX / Intel *i386*i486*) - cpu_arg="pentium-m"; + cpu_arg="pentium-m" + ;; + *i386*) + cpu_arg="i386" ;; #Core 2 Duo *Intel*Core\(TM\)2*) - cpu_arg="nocona"; + cpu_arg="nocona" ;; - # Intel ia64 *Itanium*) - # Don't need to set any flags for itanium(at the moment) - cpu_arg=""; + cpu_arg="itanium" ;; - - # + # Solaris Sparc + *sparc*sun4u*) + cpu_arg="sparc" + ;; + # Power PC *ppc*) - cpu_arg='powerpc' + cpu_arg="powerpc" ;; - *powerpc*) - cpu_arg='powerpc' + cpu_arg="powerpc" ;; - # unknown *) - cpu_arg=""; + cpu_arg="" ;; esac - if test -z "$cpu_arg" ; then if test "$CPUINFO" != " " ; then # fallback to uname if necessary @@ -176,29 +182,22 @@ check_cpu () { cc_minor=$2 cc_patch=$3 cc_comp=`expr $cc_major '*' 100 '+' $cc_minor` - + case "$cc_ver--$cc_verno" in *GCC*) # different gcc backends (and versions) have different CPU flags case `gcc -dumpmachine` in - i?86-*) - if test "$cc_comp" -lt 304 - then - check_cpu_args='-mcpu=$cpu_arg' + i?86-* | x86_64-*) + if test "$cc_comp" -lt 304 ; then + check_cpu_cflags="-mcpu=${cpu_arg}" + elif test "$cc_comp" -ge 402 ; then + check_cpu_cflags="-mtune=native" else - check_cpu_args='-mtune=$cpu_arg' + check_cpu_cflags="-mtune=${cpu_arg}" fi ;; ppc-*) - check_cpu_args='-mcpu=$cpu_arg -mtune=$cpu_arg' - ;; - x86_64-*) - if test "$cc_comp" -lt 304 - then - check_cpu_args='-mcpu=$cpu_arg' - else - check_cpu_args='-mtune=$cpu_arg' - fi + check_cpu_cflags="-mcpu=${cpu_arg} -mtune=${cpu_arg}" ;; *) check_cpu_cflags="" @@ -208,7 +207,7 @@ check_cpu () { ;; 2.95.*) # GCC 2.95 doesn't expose its name in --version output - check_cpu_args='-m$cpu_arg' + check_cpu_cflags="-m${cpu_arg}" ;; *) check_cpu_cflags="" @@ -219,41 +218,23 @@ check_cpu () { # now we check whether the compiler really understands the cpu type touch __test.c + if test "x$core2" = "xyes" ; then + cpu_arg="core2" + fi while [ "$cpu_arg" ] ; do printf "testing $cpu_arg ... " >&2 # compile check - check_cpu_cflags=`eval echo $check_cpu_args` - if $cc -c $check_cpu_cflags __test.c 2>/dev/null; then - echo ok >&2 - break; + eval "$cc -c $check_cpu_cflags __test.c" 2>/dev/null + if test "x$?" = "x0" ; 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 + break; done - rm __test.* } |