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| author | H.J. Lu <hongjiu.lu@intel.com> | 2009-07-10 12:04:14 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-07-10 12:04:14 -0700 |
| commit | b0ecde3a63fd3e987137aa9eb76da3b556b14559 (patch) | |
| tree | 9ec97c379f41fcb36164d03ee5b852e1b3f1e59f /sysdeps/x86_64/elf | |
| parent | 786b74f41a076ac67b5d4fe59ab26e55745095df (diff) | |
| download | glibc-b0ecde3a63fd3e987137aa9eb76da3b556b14559.tar.gz glibc-b0ecde3a63fd3e987137aa9eb76da3b556b14559.tar.xz glibc-b0ecde3a63fd3e987137aa9eb76da3b556b14559.zip | |
Add AVX support to ld.so auditing for x86-64.
Diffstat (limited to 'sysdeps/x86_64/elf')
| -rwxr-xr-x | sysdeps/x86_64/elf/configure | 25 | ||||
| -rw-r--r-- | sysdeps/x86_64/elf/configure.in | 11 |
2 files changed, 36 insertions, 0 deletions
diff --git a/sysdeps/x86_64/elf/configure b/sysdeps/x86_64/elf/configure index 774654997d..221e74c2b8 100755 --- a/sysdeps/x86_64/elf/configure +++ b/sysdeps/x86_64/elf/configure @@ -79,3 +79,28 @@ cat >>confdefs.h <<\_ACEOF #define PI_STATIC_AND_HIDDEN 1 _ACEOF + +{ $as_echo "$as_me:$LINENO: checking for AVX support" >&5 +$as_echo_n "checking for AVX support... " >&6; } +if test "${libc_cv_cc_avx+set}" = set; then + $as_echo_n "(cached) " >&6 +else + if { ac_try='${CC-cc} -mavx -xc /dev/null -S -o /dev/null' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + libc_cv_cc_avx=yes +else + libc_cv_cc_avx=no +fi +fi +{ $as_echo "$as_me:$LINENO: result: $libc_cv_cc_avx" >&5 +$as_echo "$libc_cv_cc_avx" >&6; } +if test $libc_cv_cc_avx = yes; then + cat >>confdefs.h <<\_ACEOF +#define HAVE_AVX_SUPPORT 1 +_ACEOF + +fi diff --git a/sysdeps/x86_64/elf/configure.in b/sysdeps/x86_64/elf/configure.in index 9cb59d009c..14d1875302 100644 --- a/sysdeps/x86_64/elf/configure.in +++ b/sysdeps/x86_64/elf/configure.in @@ -32,3 +32,14 @@ fi dnl It is always possible to access static and hidden symbols in an dnl position independent way. AC_DEFINE(PI_STATIC_AND_HIDDEN) + +dnl Check if -mavx works. +AC_CACHE_CHECK(for AVX support, libc_cv_cc_avx, [dnl +if AC_TRY_COMMAND([${CC-cc} -mavx -xc /dev/null -S -o /dev/null]); then + libc_cv_cc_avx=yes +else + libc_cv_cc_avx=no +fi]) +if test $libc_cv_cc_avx = yes; then + AC_DEFINE(HAVE_AVX_SUPPORT) +fi |