diff options
| author | Joseph Myers <joseph@codesourcery.com> | 2015-10-09 16:03:48 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-10-09 16:03:48 +0000 |
| commit | ae5d8eaed0b56ed72726ce78173a855b5c166d51 (patch) | |
| tree | 0e78f13018a7926dfee7cc1cbe96527449b4c4bf /sysdeps/x86_64 | |
| parent | b7848899a591a9de23db6afeb9992668ef8aff88 (diff) | |
| download | glibc-ae5d8eaed0b56ed72726ce78173a855b5c166d51.tar.gz glibc-ae5d8eaed0b56ed72726ce78173a855b5c166d51.tar.xz glibc-ae5d8eaed0b56ed72726ce78173a855b5c166d51.zip | |
Remove configure tests for -mno-vzeroupper support.
GCC added support for -mno-vzeroupper in version 4.6. Thus the configure tests for this support are obsolete, and this patch removes them. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by this patch). * sysdeps/i386/configure.ac (libc_cv_cc_novzeroupper): Remove configure test. * sysdeps/i386/configure: Regenerated. * sysdeps/x86_64/configure.ac (libc_cv_cc_novzeroupper): Remove configure test. * sysdeps/x86_64/configure: Regenerated. * sysdeps/x86_64/Makefile [$(config-cflags-novzeroupper) = yes]: Make code unconditional.
Diffstat (limited to 'sysdeps/x86_64')
| -rw-r--r-- | sysdeps/x86_64/Makefile | 5 | ||||
| -rw-r--r-- | sysdeps/x86_64/configure | 22 | ||||
| -rw-r--r-- | sysdeps/x86_64/configure.ac | 8 |
3 files changed, 1 insertions, 34 deletions
diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile index 099792d6e6..67ed5ba213 100644 --- a/sysdeps/x86_64/Makefile +++ b/sysdeps/x86_64/Makefile @@ -81,10 +81,7 @@ $(objpfx)tst-audit10: $(objpfx)tst-auditmod10a.so $(objpfx)tst-audit10.out: $(objpfx)tst-auditmod10b.so tst-audit10-ENV = LD_AUDIT=$(objpfx)tst-auditmod10b.so -AVX-CFLAGS=-mavx -ifeq (yes,$(config-cflags-novzeroupper)) -AVX-CFLAGS+=-mno-vzeroupper -endif +AVX-CFLAGS=-mavx -mno-vzeroupper CFLAGS-tst-audit4.c += $(AVX-CFLAGS) CFLAGS-tst-auditmod4a.c += $(AVX-CFLAGS) CFLAGS-tst-auditmod4b.c += $(AVX-CFLAGS) diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure index 717692365e..8d4d8b8763 100644 --- a/sysdeps/x86_64/configure +++ b/sysdeps/x86_64/configure @@ -97,28 +97,6 @@ fi config_vars="$config_vars config-cflags-avx512 = $libc_cv_cc_avx512" -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -mno-vzeroupper support" >&5 -$as_echo_n "checking for -mno-vzeroupper support... " >&6; } -if ${libc_cv_cc_novzeroupper+:} false; then : - $as_echo_n "(cached) " >&6 -else - if { ac_try='${CC-cc} -mno-vzeroupper -xc /dev/null -S -o /dev/null' - { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 - (eval $ac_try) 2>&5 - ac_status=$? - $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 - test $ac_status = 0; }; }; then : - libc_cv_cc_novzeroupper=yes -else - libc_cv_cc_novzeroupper=no -fi - -fi -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_novzeroupper" >&5 -$as_echo "$libc_cv_cc_novzeroupper" >&6; } -config_vars="$config_vars -config-cflags-novzeroupper = $libc_cv_cc_novzeroupper" - { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Intel MPX support" >&5 $as_echo_n "checking for Intel MPX support... " >&6; } if ${libc_cv_asm_mpx+:} false; then : diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac index 965ebc95a1..14b9580c66 100644 --- a/sysdeps/x86_64/configure.ac +++ b/sysdeps/x86_64/configure.ac @@ -30,14 +30,6 @@ if test $libc_cv_cc_avx512 = yes; then fi LIBC_CONFIG_VAR([config-cflags-avx512], [$libc_cv_cc_avx512]) -dnl Check if -mno-vzeroupper works. -AC_CACHE_CHECK(for -mno-vzeroupper support, libc_cv_cc_novzeroupper, [dnl -LIBC_TRY_CC_OPTION([-mno-vzeroupper], - [libc_cv_cc_novzeroupper=yes], - [libc_cv_cc_novzeroupper=no]) -]) -LIBC_CONFIG_VAR([config-cflags-novzeroupper], [$libc_cv_cc_novzeroupper]) - dnl Check whether asm supports Intel MPX AC_CACHE_CHECK(for Intel MPX support, libc_cv_asm_mpx, [dnl cat > conftest.s <<\EOF |