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authorJoseph Myers <joseph@codesourcery.com>2015-10-09 16:03:48 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-10-09 16:03:48 +0000
commitae5d8eaed0b56ed72726ce78173a855b5c166d51 (patch)
tree0e78f13018a7926dfee7cc1cbe96527449b4c4bf /sysdeps
parentb7848899a591a9de23db6afeb9992668ef8aff88 (diff)
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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')
-rw-r--r--sysdeps/i386/configure22
-rw-r--r--sysdeps/i386/configure.ac8
-rw-r--r--sysdeps/x86_64/Makefile5
-rw-r--r--sysdeps/x86_64/configure22
-rw-r--r--sysdeps/x86_64/configure.ac8
5 files changed, 1 insertions, 64 deletions
diff --git a/sysdeps/i386/configure b/sysdeps/i386/configure
index bc22864..0abafe3 100644
--- a/sysdeps/i386/configure
+++ b/sysdeps/i386/configure
@@ -114,28 +114,6 @@ $as_echo "$libc_cv_as_i686" >&6; }
config_vars="$config_vars
config-asflags-i686 = $libc_cv_as_i686"
-{ $as_echo "$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 ${libc_cv_asm_mpx+:} false; then :
diff --git a/sysdeps/i386/configure.ac b/sysdeps/i386/configure.ac
index c51530a..21b1c8f 100644
--- a/sysdeps/i386/configure.ac
+++ b/sysdeps/i386/configure.ac
@@ -42,14 +42,6 @@ LIBC_TRY_CC_OPTION([-Wa,-mtune=i686],
])
LIBC_CONFIG_VAR([config-asflags-i686], [$libc_cv_as_i686])
-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
diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile
index 099792d..67ed5ba 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 += $(AVX-CFLAGS)
diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure
index 7176923..8d4d8b8 100644
--- a/sysdeps/x86_64/configure
+++ b/sysdeps/x86_64/configure
@@ -97,28 +97,6 @@ fi
config_vars="$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 965ebc9..14b9580 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