-
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-# -----------------------
-# Set $? to STATUS, without forking.
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-{
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-
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-# -----------------
-# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
-as_fn_exit ()
-{
- set +e
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- exit $1
-} # as_fn_exit
-if expr a : '\(a\)' >/dev/null 2>&1 &&
- test "X`expr 00001 : '.*\(...\)'`" = X001; then
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-fi
-
-if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
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-fi
-
-as_me=`$as_basename -- "$0" ||
-$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
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- X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
- sed '/^.*\/\([^/][^/]*\)\/*$/{
- s//\1/
- q
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- /^X\/\(\/\/\)$/{
- s//\1/
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- /^X\/\(\/\).*/{
- s//\1/
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-
-
- as_lineno_1=$LINENO as_lineno_1a=$LINENO
- as_lineno_2=$LINENO as_lineno_2a=$LINENO
- eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
- test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
- # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-)
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- ' <$as_myself |
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- # Don't try to exec as it changes $[0], causing all sort of problems
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- # Exit status is that of the last command.
- exit
-}
-
-
-# ac_fn_c_try_compile LINENO
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-# Try to compile conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_compile ()
-{
- as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
- rm -f conftest.$ac_objext
- if { { ac_try="$ac_compile"
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- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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-esac
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-$as_echo "$ac_try_echo"; } >&5
- (eval "$ac_compile") 2>conftest.err
- ac_status=$?
- if test -s conftest.err; then
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- mv -f conftest.er1 conftest.err
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- ac_retval=1
-fi
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- as_fn_set_status $ac_retval
-
-} # ac_fn_c_try_compile
-
-# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
-# -------------------------------------------------------
-# Tests whether HEADER exists and can be compiled using the include files in
-# INCLUDES, setting the cache variable VAR accordingly.
-ac_fn_c_check_header_compile ()
-{
- as_lineno=${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; }
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- $as_echo_n "(cached) " >&6
-else
- cat confdefs.h - <<_ACEOF >conftest.$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
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-eval ac_res=\$$3
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
- eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-
-} # ac_fn_c_check_header_compile
-# This file is generated from configure.in by Autoconf. DO NOT EDIT!
+# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
# Local configure fragment for sysdeps/x86_64.
-
-ac_fn_c_check_header_compile "$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 if -g produces usable source locations for assembler-with-cpp" >&5
-$as_echo_n "checking if -g produces usable source locations for assembler-with-cpp... " >&6; }
-if ${libc_cv_cpp_asm_debuginfo+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat > conftest.S <<EOF
-#include "confdefs.h"
-
-/* comment on
- two lines */
- ${libc_cv_dot_text}
- ${libc_cv_asm_global_directive} foo
-foo:
- /* Unfortunately this test only works for a real instruction,
- not for any of the machine-independent pseudo-ops.
- So we just have to assume everybody has a "nop". */
- nop
- /* comment */
- nop
- /* comment */
- nop
-EOF
-if { ac_try='${CC-cc} $CPPFLAGS $ASFLAGS -g -c conftest.S 1>&5'
- { { eval echo "\"\$as_me\":${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; }; } && {
- ac_pattern='conftest\.S'
- { ac_try='readelf --debug-dump=line conftest.o |
- grep $ac_pattern 1>&5'
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking -mprefer-vector-width=128" >&5
+printf %s "checking -mprefer-vector-width=128... " >&6; }
+if test ${libc_cv_cc_mprefer_vector_width+y}
+then :
+ printf %s "(cached) " >&6
+else $as_nop
+ if { ac_try='${CC-cc} -mprefer-vector-width=128 -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}: \$? = $ac_status" >&5
+ printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }
- }; then
- libc_cv_cpp_asm_debuginfo=yes
-else
- libc_cv_cpp_asm_debuginfo=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cpp_asm_debuginfo" >&5
-$as_echo "$libc_cv_cpp_asm_debuginfo" >&6; }
-if test $libc_cv_cpp_asm_debuginfo = yes; then
- $as_echo "#define HAVE_CPP_ASM_DEBUGINFO 1" >>confdefs.h
-
-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
+then :
+ libc_cv_cc_mprefer_vector_width=yes
+else $as_nop
+ libc_cv_cc_mprefer_vector_width=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
- $as_echo "#define HAVE_SSE4_SUPPORT 1" >>confdefs.h
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_mprefer_vector_width" >&5
+printf "%s\n" "$libc_cv_cc_mprefer_vector_width" >&6; }
+config_vars="$config_vars
+config-cflags-mprefer-vector-width = $libc_cv_cc_mprefer_vector_width"
-fi
-
-{ $as_echo "$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
-
-{ $as_echo "$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
-
-{ $as_echo "$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'
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for linker that supports -z mark-plt" >&5
+printf %s "checking for linker that supports -z mark-plt... " >&6; }
+libc_linker_feature=no
+cat > conftest.c <<EOF
+int _start (void) { return 42; }
+EOF
+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
+ -Wl,-z,mark-plt -nostdlib -nostartfiles
+ -fPIC -shared -o conftest.so conftest.c
+ 1>&5'
{ { eval echo "\"\$as_me\":${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 :
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-else
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-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
- $as_echo "#define HAVE_FMA4_SUPPORT 1" >>confdefs.h
-
+ printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }
+then
+ if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp -Wl,-z,mark-plt -nostdlib \
+ -nostartfiles -fPIC -shared -o conftest.so conftest.c 2>&1 \
+ | grep "warning: -z mark-plt ignored" > /dev/null 2>&1; then
+ true
+ else
+ libc_linker_feature=yes
+ fi
fi
-
-{ $as_echo "$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'
+rm -f conftest*
+if test $libc_linker_feature = yes; then
+ libc_cv_z_mark_plt=yes
+else
+ libc_cv_z_mark_plt=no
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
+printf "%s\n" "$libc_linker_feature" >&6; }
+config_vars="$config_vars
+have-z-mark-plt = $libc_cv_z_mark_plt"
+
+if test x"$build_mathvec" = xnotset; then
+ build_mathvec=yes
+fi
+
+if test $enable_cet != no; then
+ # Check if CET can be enabled.
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether CET can be enabled" >&5
+printf %s "checking whether CET can be enabled... " >&6; }
+if test ${libc_cv_x86_cet_available+y}
+then :
+ printf %s "(cached) " >&6
+else $as_nop
+ cat > conftest.c <<EOF
+#if !defined __CET__ || __CET__ != 3
+# error CET isn't available.
+#endif
+EOF
+ if { ac_try='${CC-cc} -c $CFLAGS -fcf-protection -include cet.h conftest.c 1>&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; }; then :
- libc_cv_cc_novzeroupper=yes
-else
- libc_cv_cc_novzeroupper=no
-fi
-
+ printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }; then
+ libc_cv_x86_cet_available=yes
+ else
+ libc_cv_x86_cet_available=no
+ fi
+ rm -rf conftest*
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_cet_available" >&5
+printf "%s\n" "$libc_cv_x86_cet_available" >&6; }
+ if test $libc_cv_x86_cet_available != yes; then
+ as_fn_error $? "$CC doesn't support CET" "$LINENO" 5
+ fi
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_novzeroupper" >&5
-$as_echo "$libc_cv_cc_novzeroupper" >&6; }
-
-# Check for support of thread-local storage handling in assembler and linker.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for x86-64 TLS support" >&5
-$as_echo_n "checking for x86-64 TLS support... " >&6; }
-if ${libc_cv_x86_64_tls+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- cat > conftest.s <<\EOF
- .section ".tdata", "awT", @progbits
- .globl foo
-foo: .quad 1
- .section ".tbss", "awT", @nobits
- .globl bar
-bar: .skip 8
- .text
-baz: leaq bar@TLSLD(%rip), %rdi
- leaq bar@DTPOFF(%rax), %rcx
- addq foo@GOTTPOFF(%rip), %rax
- movq $bar@TPOFF, %rdx
+if test $enable_cet != no; then
+ # Check if assembler supports CET.
+ { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether assembler supports CET" >&5
+printf %s "checking whether assembler supports CET... " >&6; }
+if test ${libc_cv_x86_cet_as+y}
+then :
+ printf %s "(cached) " >&6
+else $as_nop
+ cat > conftest.s <<EOF
+ incsspd %ecx
EOF
-if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'
+ if { ac_try='${CC-cc} -c $CFLAGS conftest.s -o conftest.o 1>&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }; then
- libc_cv_x86_64_tls=yes
-else
- libc_cv_x86_64_tls=no
-fi
-rm -f conftest*
+ libc_cv_x86_cet_as=yes
+ else
+ libc_cv_x86_cet_as=no
+ fi
+ rm -rf conftest*
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_cet_as" >&5
+printf "%s\n" "$libc_cv_x86_cet_as" >&6; }
+ if test $libc_cv_x86_cet_as = no; then
+ as_fn_error $? "$AS doesn't support CET" "$LINENO" 5
+ fi
fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_64_tls" >&5
-$as_echo "$libc_cv_x86_64_tls" >&6; }
-if test $libc_cv_x86_64_tls = no; then
- as_fn_error $? "the assembler must support TLS" "$LINENO" 5
+if test $enable_cet = yes; then
+ printf "%s\n" "#define DEFAULT_DL_X86_CET_CONTROL cet_elf_property" >>confdefs.h
+
+elif test $enable_cet = permissive; then
+ printf "%s\n" "#define DEFAULT_DL_X86_CET_CONTROL cet_permissive" >>confdefs.h
+
fi
+config_vars="$config_vars
+enable-cet = $enable_cet"
-$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
+test -n "$critic_missing" && as_fn_error $? "
+*** $critic_missing" "$LINENO" 5
-# work around problem with autoconf and empty lines at the end of files
projects / platform / upstream / glibc.git / blobdiff