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path: root/sysdeps/x86/configure
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# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
 # Local configure fragment for sysdeps/x86.

if test $enable_cet != no; then
  # Check if CET can be enabled.
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether CET can be enabled" >&5
$as_echo_n "checking whether CET can be enabled... " >&6; }
if ${libc_cv_x86_cet_available+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat > conftest.c <<EOF
#if !defined __CET__ || __CET__ != 3
# error CET isn't available.
#endif
EOF
		 if { ac_try='${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_x86_cet_available=yes
		 else
		   libc_cv_x86_cet_available=no
		 fi
		 rm -rf conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_cet_available" >&5
$as_echo "$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
if test $enable_cet != no; then
  # Check if assembler supports CET.
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $AS supports CET" >&5
$as_echo_n "checking whether $AS supports CET... " >&6; }
if ${libc_cv_x86_cet_as+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat > conftest.s <<EOF
	incsspd %ecx
EOF
		 if { ac_try='${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
  test $ac_status = 0; }; }; then
		   libc_cv_x86_cet_as=yes
		 else
		   libc_cv_x86_cet_as=no
		 fi
		 rm -rf conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_cet_as" >&5
$as_echo "$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
if test $enable_cet = yes; then
  $as_echo "#define DEFAULT_DL_X86_CET_CONTROL cet_elf_property" >>confdefs.h

elif test $enable_cet = permissive; then
  $as_echo "#define DEFAULT_DL_X86_CET_CONTROL cet_permissive" >>confdefs.h

fi
config_vars="$config_vars
enable-cet = $enable_cet"

# Check if linker supports x86 ISA level.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker x86 ISA level support" >&5
$as_echo_n "checking for linker x86 ISA level support... " >&6; }
if ${libc_cv_include_x86_isa_level+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat > conftest1.S <<EOF
#ifdef __LP64__
# define P2ALIGN 3
#else
# define P2ALIGN 2
#endif
	.section ".note.gnu.property", "a"
	.p2align P2ALIGN
	.long 1f - 0f		/* name length.  */
	.long 4f - 1f		/* data length.  */
	/* NT_GNU_PROPERTY_TYPE_0 */
	.long 5			/* note type.  */
0:
	.asciz "GNU"		/* vendor name.  */
1:
	.p2align P2ALIGN
	/* GNU_PROPERTY_X86_ISA_1_NEEDED */
	.long 0xc0008002	/* pr_type.  */
	.long 3f - 2f		/* pr_datasz.  */
2:
	.long 0x1
3:
	.p2align P2ALIGN
4:
EOF
cat > conftest2.S <<EOF
#ifdef __LP64__
# define P2ALIGN 3
#else
# define P2ALIGN 2
#endif
	.section ".note.gnu.property", "a"
	.p2align P2ALIGN
	.long 1f - 0f		/* name length.  */
	.long 4f - 1f		/* data length.  */
	/* NT_GNU_PROPERTY_TYPE_0 */
	.long 5			/* note type.  */
0:
	.asciz "GNU"		/* vendor name.  */
1:
	.p2align P2ALIGN
	/* GNU_PROPERTY_X86_ISA_1_NEEDED */
	.long 0xc0008002	/* pr_type.  */
	.long 3f - 2f		/* pr_datasz.  */
2:
	.long 0x2
3:
	.p2align P2ALIGN
4:
EOF
libc_cv_include_x86_isa_level=no
if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -nostartfiles -nostdlib -r -o conftest conftest1.S conftest2.S'
  { { eval echo "\"\$as_me\":${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
  count=`LC_ALL=C $READELF -n conftest | grep NT_GNU_PROPERTY_TYPE_0 | wc -l`
  if test "$count" = 1; then
    libc_cv_include_x86_isa_level=yes
  fi
fi
rm -f conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_include_x86_isa_level" >&5
$as_echo "$libc_cv_include_x86_isa_level" >&6; }
if test $libc_cv_include_x86_isa_level = yes; then
  $as_echo "#define INCLUDE_X86_ISA_LEVEL 1" >>confdefs.h

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for LAHF/SAHF instruction support" >&5
$as_echo_n "checking for LAHF/SAHF instruction support... " >&6; }
if ${libc_cv_have_x86_lahf_sahf+:} false; then :
  $as_echo_n "(cached) " >&6
else
      libc_cv_have_x86_lahf_sahf=no
    if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - -x c /dev/null'
  { { eval echo "\"\$as_me\":${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; }; } | grep -qE '(-msahf\b|-march=x86-64-v)'; then
      libc_cv_have_x86_lahf_sahf=yes
    fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_have_x86_lahf_sahf" >&5
$as_echo "$libc_cv_have_x86_lahf_sahf" >&6; }
  if test $libc_cv_have_x86_lahf_sahf = yes; then
    $as_echo "#define HAVE_X86_LAHF_SAHF 1" >>confdefs.h

  fi
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for MOVBE instruction support" >&5
$as_echo_n "checking for MOVBE instruction support... " >&6; }
if ${libc_cv_have_x86_movbe+:} false; then :
  $as_echo_n "(cached) " >&6
else
      libc_cv_have_x86_movbe=no
    if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS -fverbose-asm -S -o - -x c /dev/null'
  { { eval echo "\"\$as_me\":${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; }; } | grep -qE '(-mmovbe\b|-march=x86-64-v([3-9]|[1-9][0-9]))'; then
      libc_cv_have_x86_movbe=yes
    fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_have_x86_movbe" >&5
$as_echo "$libc_cv_have_x86_movbe" >&6; }
  if test $libc_cv_have_x86_movbe = yes; then
    $as_echo "#define HAVE_X86_MOVBE 1" >>confdefs.h

  fi
fi
config_vars="$config_vars
enable-x86-isa-level = $libc_cv_include_x86_isa_level"

$as_echo "#define SUPPORT_STATIC_PIE 1" >>confdefs.h