mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-11 13:50:06 +00:00
f2fef657d8
* config.h.in (HAVE_AVX2_SUPPORT): New #undef. * sysdeps/i386/configure.ac: Set HAVE_AVX2_SUPPORT and config-cflags-avx2. * sysdeps/x86_64/configure.ac: Likewise. * sysdeps/i386/configure: Regenerated. * sysdeps/x86_64/configure: Likewise. * sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add memset-avx2 only if config-cflags-avx2 is yes. * sysdeps/x86_64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Tests for memset_chk and memset only if HAVE_AVX2_SUPPORT is defined. * sysdeps/x86_64/multiarch/memset.S: Define multiple versions only if HAVE_AVX2_SUPPORT is defined. * sysdeps/x86_64/multiarch/memset_chk.S: Likewise.
274 lines
9.0 KiB
Plaintext
274 lines
9.0 KiB
Plaintext
|
|
# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
|
|
# -------------------------------------------------------
|
|
# Tests whether HEADER exists and can be compiled using the include files in
|
|
# INCLUDES, setting the cache variable VAR accordingly.
|
|
ac_fn_c_check_header_compile ()
|
|
{
|
|
as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
|
|
$as_echo_n "checking for $2... " >&6; }
|
|
if eval \${$3+:} false; then :
|
|
$as_echo_n "(cached) " >&6
|
|
else
|
|
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
|
/* end confdefs.h. */
|
|
$4
|
|
#include <$2>
|
|
_ACEOF
|
|
if ac_fn_c_try_compile "$LINENO"; then :
|
|
eval "$3=yes"
|
|
else
|
|
eval "$3=no"
|
|
fi
|
|
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
|
|
fi
|
|
eval ac_res=\$$3
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
|
|
$as_echo "$ac_res" >&6; }
|
|
eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
|
|
|
|
} # ac_fn_c_check_header_compile
|
|
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
|
|
# Local configure fragment for sysdeps/i386.
|
|
|
|
# We no longer support i386 since it lacks the atomic instructions
|
|
# required to implement NPTL threading.
|
|
if test "$config_machine" = i386; then
|
|
as_fn_error $? "
|
|
*** ERROR: Support for i386 is deprecated.
|
|
*** Please use host i786, i686, i585 or i486.
|
|
*** For example: /src/glibc/configure --host=i686-pc-linux-gnu ...\"" "$LINENO" 5
|
|
fi
|
|
|
|
# The GNU C Library can't be built for i386. There are several reasons for
|
|
# this restriction. The primary reason is that i386 lacks the atomic
|
|
# operations required to support the current NPTL implementation. While it is
|
|
# possible that such atomic operations could be emulated in the kernel to date
|
|
# no such work has been done to enable this. Even with NPTL disabled you still
|
|
# have no atomic.h implementation. Given the declining use of i386 we disable
|
|
# support for building with `-march=i386' or `-mcpu=i386.' We don't explicitly
|
|
# check for i386, instead we make sure the compiler has support for inlining
|
|
# the builtin __sync_val_compare_and_swap. If it does then we should have no
|
|
# problem building for i386.
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for compiler support of inlined builtin function __sync_val_compare_and_swap" >&5
|
|
$as_echo_n "checking for compiler support of inlined builtin function __sync_val_compare_and_swap... " >&6; }
|
|
libc_compiler_builtin_inlined=no
|
|
cat > conftest.c <<EOF
|
|
int _start (void) { int a, b, c; __sync_val_compare_and_swap (&a, b, c); return 0; }
|
|
EOF
|
|
if ! { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
|
|
-O0 -nostdlib -nostartfiles
|
|
-S conftest.c -o - | fgrep "__sync_val_compare_and_swap"
|
|
1>&5'
|
|
{ { eval echo "\"\$as_me\":${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_compiler_builtin_inlined=yes
|
|
fi
|
|
rm -f conftest*
|
|
if test $libc_compiler_builtin_inlined = yes; then
|
|
libc_cv_unsupported_i386=no
|
|
else
|
|
as_fn_error $? "
|
|
*** Building with -march=i386/-mcpu=i386 is not supported.
|
|
*** Please use host i786, i686, i586, or i486.
|
|
*** For example: /source/glibc/configure CFLAGS='-O2 -march=i686' ..." "$LINENO" 5
|
|
fi
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_compiler_builtin_inlined" >&5
|
|
$as_echo "$libc_compiler_builtin_inlined" >&6; }
|
|
|
|
|
|
ac_fn_c_check_header_compile "$LINENO" "cpuid.h" "ac_cv_header_cpuid_h" "/* No default includes. */
|
|
"
|
|
if test "x$ac_cv_header_cpuid_h" = xyes; then :
|
|
|
|
else
|
|
as_fn_error $? "gcc must provide the <cpuid.h> header" "$LINENO" 5
|
|
fi
|
|
|
|
|
|
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSE4 support" >&5
|
|
$as_echo_n "checking for SSE4 support... " >&6; }
|
|
if ${libc_cv_cc_sse4+:} false; then :
|
|
$as_echo_n "(cached) " >&6
|
|
else
|
|
if { ac_try='${CC-cc} -msse4 -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_sse4=yes
|
|
else
|
|
libc_cv_cc_sse4=no
|
|
fi
|
|
|
|
fi
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_sse4" >&5
|
|
$as_echo "$libc_cv_cc_sse4" >&6; }
|
|
if test $libc_cv_cc_sse4 = yes; then
|
|
$as_echo "#define HAVE_SSE4_SUPPORT 1" >>confdefs.h
|
|
|
|
fi
|
|
config_vars="$config_vars
|
|
config-cflags-sse4 = $libc_cv_cc_sse4"
|
|
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for assembler -mtune=i686 support" >&5
|
|
$as_echo_n "checking for assembler -mtune=i686 support... " >&6; }
|
|
if ${libc_cv_as_i686+:} false; then :
|
|
$as_echo_n "(cached) " >&6
|
|
else
|
|
if { ac_try='${CC-cc} -Wa,-mtune=i686 -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_as_i686=yes
|
|
else
|
|
libc_cv_as_i686=no
|
|
fi
|
|
|
|
fi
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_as_i686" >&5
|
|
$as_echo "$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 AVX support" >&5
|
|
$as_echo_n "checking for AVX support... " >&6; }
|
|
if ${libc_cv_cc_avx+:} false; then :
|
|
$as_echo_n "(cached) " >&6
|
|
else
|
|
if { ac_try='${CC-cc} -mavx -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_avx=yes
|
|
else
|
|
libc_cv_cc_avx=no
|
|
fi
|
|
|
|
fi
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx" >&5
|
|
$as_echo "$libc_cv_cc_avx" >&6; }
|
|
if test $libc_cv_cc_avx = yes; then
|
|
$as_echo "#define HAVE_AVX_SUPPORT 1" >>confdefs.h
|
|
|
|
fi
|
|
config_vars="$config_vars
|
|
config-cflags-avx = $libc_cv_cc_avx"
|
|
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX encoding of SSE instructions" >&5
|
|
$as_echo_n "checking for AVX encoding of SSE instructions... " >&6; }
|
|
if ${libc_cv_cc_sse2avx+:} false; then :
|
|
$as_echo_n "(cached) " >&6
|
|
else
|
|
if { ac_try='${CC-cc} -msse2avx -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_sse2avx=yes
|
|
else
|
|
libc_cv_cc_sse2avx=no
|
|
fi
|
|
|
|
fi
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_sse2avx" >&5
|
|
$as_echo "$libc_cv_cc_sse2avx" >&6; }
|
|
if test $libc_cv_cc_sse2avx = yes; then
|
|
$as_echo "#define HAVE_SSE2AVX_SUPPORT 1" >>confdefs.h
|
|
|
|
fi
|
|
config_vars="$config_vars
|
|
config-cflags-sse2avx = $libc_cv_cc_sse2avx"
|
|
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for FMA4 support" >&5
|
|
$as_echo_n "checking for FMA4 support... " >&6; }
|
|
if ${libc_cv_cc_fma4+:} false; then :
|
|
$as_echo_n "(cached) " >&6
|
|
else
|
|
if { ac_try='${CC-cc} -mfma4 -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_fma4=yes
|
|
else
|
|
libc_cv_cc_fma4=no
|
|
fi
|
|
|
|
fi
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_fma4" >&5
|
|
$as_echo "$libc_cv_cc_fma4" >&6; }
|
|
if test $libc_cv_cc_fma4 = yes; then
|
|
$as_echo "#define HAVE_FMA4_SUPPORT 1" >>confdefs.h
|
|
|
|
fi
|
|
config_vars="$config_vars
|
|
have-mfma4 = $libc_cv_cc_fma4"
|
|
|
|
{ $as_echo "$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 AVX2 support" >&5
|
|
$as_echo_n "checking for AVX2 support... " >&6; }
|
|
if ${libc_cv_cc_avx2+:} false; then :
|
|
$as_echo_n "(cached) " >&6
|
|
else
|
|
if { ac_try='${CC-cc} -mavx2 -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_avx2=yes
|
|
else
|
|
libc_cv_cc_avx2=no
|
|
fi
|
|
|
|
fi
|
|
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx2" >&5
|
|
$as_echo "$libc_cv_cc_avx2" >&6; }
|
|
if test $libc_cv_cc_avx2 = yes; then
|
|
$as_echo "#define HAVE_AVX2_SUPPORT 1" >>confdefs.h
|
|
|
|
fi
|
|
config_vars="$config_vars
|
|
config-cflags-avx2 = $libc_cv_cc_avx2"
|
|
|
|
$as_echo "#define USE_REGPARMS 1" >>confdefs.h
|
|
|
|
|
|
$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
|
|
|