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https://sourceware.org/git/glibc.git
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c6cb8783b5
Bump autoconf requirement to 2.71 to allow regenerating configure on more recent distributions. autoconf 2.71 has been in Fedora since F36 and is the current version in Debian stable (bookworm). It appears to be current in Gentoo as well. All sysdeps configure and preconfigure scripts have also been regenerated; all changes are trivial transformations that do not affect functionality. Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
201 lines
6.3 KiB
Plaintext
201 lines
6.3 KiB
Plaintext
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/x86.
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if test $enable_cet != no; then
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# Check if CET can be enabled.
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether CET can be enabled" >&5
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printf %s "checking whether CET can be enabled... " >&6; }
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if test ${libc_cv_x86_cet_available+y}
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then :
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printf %s "(cached) " >&6
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else $as_nop
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cat > conftest.c <<EOF
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#if !defined __CET__ || __CET__ != 3
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# error CET isn't available.
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#endif
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EOF
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if { ac_try='${CC-cc} -c $CFLAGS -fcf-protection -include cet.h conftest.c 1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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libc_cv_x86_cet_available=yes
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else
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libc_cv_x86_cet_available=no
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fi
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rm -rf conftest*
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_cet_available" >&5
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printf "%s\n" "$libc_cv_x86_cet_available" >&6; }
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if test $libc_cv_x86_cet_available != yes; then
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as_fn_error $? "$CC doesn't support CET" "$LINENO" 5
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fi
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fi
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if test $enable_cet != no; then
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# Check if assembler supports CET.
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether assembler supports CET" >&5
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printf %s "checking whether assembler supports CET... " >&6; }
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if test ${libc_cv_x86_cet_as+y}
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then :
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printf %s "(cached) " >&6
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else $as_nop
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cat > conftest.s <<EOF
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incsspd %ecx
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EOF
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if { ac_try='${CC-cc} -c $CFLAGS conftest.s -o conftest.o 1>&5'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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libc_cv_x86_cet_as=yes
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else
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libc_cv_x86_cet_as=no
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fi
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rm -rf conftest*
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_cet_as" >&5
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printf "%s\n" "$libc_cv_x86_cet_as" >&6; }
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if test $libc_cv_x86_cet_as = no; then
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as_fn_error $? "$AS doesn't support CET" "$LINENO" 5
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fi
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fi
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if test $enable_cet = yes; then
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printf "%s\n" "#define DEFAULT_DL_X86_CET_CONTROL cet_elf_property" >>confdefs.h
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elif test $enable_cet = permissive; then
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printf "%s\n" "#define DEFAULT_DL_X86_CET_CONTROL cet_permissive" >>confdefs.h
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fi
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config_vars="$config_vars
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enable-cet = $enable_cet"
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# Check if linker supports x86 ISA level.
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for linker x86 ISA level support" >&5
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printf %s "checking for linker x86 ISA level support... " >&6; }
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if test ${libc_cv_include_x86_isa_level+y}
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then :
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printf %s "(cached) " >&6
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else $as_nop
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cat > conftest1.S <<EOF
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#ifdef __LP64__
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# define P2ALIGN 3
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#else
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# define P2ALIGN 2
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#endif
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.section ".note.gnu.property", "a"
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.p2align P2ALIGN
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.long 1f - 0f /* name length. */
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.long 4f - 1f /* data length. */
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/* NT_GNU_PROPERTY_TYPE_0 */
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.long 5 /* note type. */
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0:
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.asciz "GNU" /* vendor name. */
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1:
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.p2align P2ALIGN
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/* GNU_PROPERTY_X86_ISA_1_NEEDED */
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.long 0xc0008002 /* pr_type. */
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.long 3f - 2f /* pr_datasz. */
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2:
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.long 0x1
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3:
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.p2align P2ALIGN
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4:
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EOF
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cat > conftest2.S <<EOF
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#ifdef __LP64__
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# define P2ALIGN 3
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#else
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# define P2ALIGN 2
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#endif
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.section ".note.gnu.property", "a"
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.p2align P2ALIGN
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.long 1f - 0f /* name length. */
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.long 4f - 1f /* data length. */
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/* NT_GNU_PROPERTY_TYPE_0 */
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.long 5 /* note type. */
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0:
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.asciz "GNU" /* vendor name. */
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1:
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.p2align P2ALIGN
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/* GNU_PROPERTY_X86_ISA_1_NEEDED */
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.long 0xc0008002 /* pr_type. */
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.long 3f - 2f /* pr_datasz. */
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2:
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.long 0x2
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3:
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.p2align P2ALIGN
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4:
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EOF
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libc_cv_include_x86_isa_level=no
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -nostartfiles -nostdlib -r -o conftest conftest1.S conftest2.S'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; }; then
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count=`LC_ALL=C $READELF -n conftest | grep NT_GNU_PROPERTY_TYPE_0 | wc -l`
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if test "$count" = 1; then
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libc_cv_include_x86_isa_level=yes
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fi
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fi
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rm -f conftest*
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_include_x86_isa_level" >&5
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printf "%s\n" "$libc_cv_include_x86_isa_level" >&6; }
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if test $libc_cv_include_x86_isa_level = yes; then
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printf "%s\n" "#define INCLUDE_X86_ISA_LEVEL 1" >>confdefs.h
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for LAHF/SAHF instruction support" >&5
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printf %s "checking for LAHF/SAHF instruction support... " >&6; }
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if test ${libc_cv_have_x86_lahf_sahf+y}
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then :
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printf %s "(cached) " >&6
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else $as_nop
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libc_cv_have_x86_lahf_sahf=no
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - -x c /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; } | grep -qE '(-msahf\b|-march=x86-64-v)'; then
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libc_cv_have_x86_lahf_sahf=yes
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fi
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_have_x86_lahf_sahf" >&5
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printf "%s\n" "$libc_cv_have_x86_lahf_sahf" >&6; }
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if test $libc_cv_have_x86_lahf_sahf = yes; then
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printf "%s\n" "#define HAVE_X86_LAHF_SAHF 1" >>confdefs.h
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for MOVBE instruction support" >&5
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printf %s "checking for MOVBE instruction support... " >&6; }
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if test ${libc_cv_have_x86_movbe+y}
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then :
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printf %s "(cached) " >&6
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else $as_nop
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libc_cv_have_x86_movbe=no
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if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - -x c /dev/null'
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{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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test $ac_status = 0; }; } | grep -qE '(-mmovbe\b|-march=x86-64-v([3-9]|[1-9][0-9]))'; then
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libc_cv_have_x86_movbe=yes
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fi
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_have_x86_movbe" >&5
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printf "%s\n" "$libc_cv_have_x86_movbe" >&6; }
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if test $libc_cv_have_x86_movbe = yes; then
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printf "%s\n" "#define HAVE_X86_MOVBE 1" >>confdefs.h
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fi
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fi
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config_vars="$config_vars
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enable-x86-isa-level = $libc_cv_include_x86_isa_level"
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printf "%s\n" "#define SUPPORT_STATIC_PIE 1" >>confdefs.h
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