diff options
| author | sezero <sezero@users.sourceforge.net> | 2019-10-06 14:37:02 +0300 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2020-07-08 06:10:17 +0300 |
| commit | 484af2580b82dffd695fcd0841fc34a9dc5f7293 (patch) | |
| tree | 7e03e2174cf522f51d008cfdd1d04d8daa04373b | |
| parent | f8ed894b1fb681109abc73ba75b3d6237a751d72 (diff) | |
configure: adjust x86 get cpu info inline assembly method for PIC case
.. just like the way it is done in celt/x86/x86cpu.c.
Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
| -rw-r--r-- | configure.ac | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 18ece291..f12f0aa9 100644 --- a/configure.ac +++ b/configure.ac @@ -691,6 +691,18 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[ unsigned int CPUInfo2; unsigned int CPUInfo3; unsigned int InfoType; + #if defined(__i386__) && defined(__PIC__) + __asm__ __volatile__ ( + "xchg %%ebx, %1\n" + "cpuid\n" + "xchg %%ebx, %1\n": + "=a" (CPUInfo0), + "=r" (CPUInfo1), + "=c" (CPUInfo2), + "=d" (CPUInfo3) : + "a" (InfoType), "c" (0) + ); + #else __asm__ __volatile__ ( "cpuid": "=a" (CPUInfo0), @@ -699,6 +711,7 @@ AS_IF([test x"$enable_intrinsics" = x"yes"],[ "=d" (CPUInfo3) : "a" (InfoType), "c" (0) ); + #endif ]])], [get_cpuid_by_asm="yes" AC_MSG_RESULT([Inline Assembly]) |