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| author | jan.nijtmans <nijtmans@users.sourceforge.net> | 2012-05-02 21:55:54 (GMT) |
|---|---|---|
| committer | jan.nijtmans <nijtmans@users.sourceforge.net> | 2012-05-02 21:55:54 (GMT) |
| commit | 45592a8e8ead694e094089f8174258afb6de280d (patch) | |
| tree | 43d2bfa84716bb6f21c91187e06224d7cd785f18 /unix/configure | |
| parent | dd7509394d75de72ef1663a2d35377506f23d00d (diff) | |
| parent | 67e7ec069710c2b524e0466502b0e9f14769b439 (diff) | |
| download | tcl-45592a8e8ead694e094089f8174258afb6de280d.zip tcl-45592a8e8ead694e094089f8174258afb6de280d.tar.gz tcl-45592a8e8ead694e094089f8174258afb6de280d.tar.bz2 | |
Better detection and implementation for cpuid instruction on Intel-derived processors, both 32-bit and 64-bit
Diffstat (limited to 'unix/configure')
| -rwxr-xr-x | unix/configure | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/unix/configure b/unix/configure index cb4f9f1..f763eeb 100755 --- a/unix/configure +++ b/unix/configure @@ -19360,9 +19360,13 @@ int main () { - int index,ax,bx,cx,dx; - __asm__ __volatile__ ("cpuid":\ - "=a" (ax), "=b" (bx), "=c" (cx), "=d" (dx) : "a" (index)); + int index,regsPtr[4]; + __asm__ __volatile__("mov %%ebx, %%edi \n\t" + "cpuid \n\t" + "mov %%ebx, %%esi \n\t" + "mov %%edi, %%ebx \n\t" + : "=a"(regsPtr[0]), "=S"(regsPtr[1]), "=c"(regsPtr[2]), "=d"(regsPtr[3]) + : "a"(index)); ; return 0; @@ -19403,7 +19407,8 @@ fi echo "$as_me:$LINENO: result: $tcl_cv_cpuid" >&5 echo "${ECHO_T}$tcl_cv_cpuid" >&6 if test $tcl_cv_cpuid = yes; then - cat >>confdefs.h <<\_ACEOF + +cat >>confdefs.h <<\_ACEOF #define HAVE_CPUID 1 _ACEOF |