GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.

# Local configure fragment for sysdeps/x86.

if test $enable_cet != no; then

  # Check if CET can be enabled.

  AC_CACHE_CHECK(whether CET can be enabled,

		 libc_cv_x86_cet_available, [dnl

cat > conftest.c <

#if !defined __CET__ || __CET__ != 3

# error CET isn't available.

#endif

EOF

		 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS -fcf-protection -include cet.h conftest.c 1>&AS_MESSAGE_LOG_FD); then

		   libc_cv_x86_cet_available=yes

		 else

		   libc_cv_x86_cet_available=no

		 fi

		 rm -rf conftest*])

  if test $libc_cv_x86_cet_available != yes; then

    AC_MSG_ERROR([$CC doesn't support CET])

  fi

fi

if test $enable_cet != no; then

  # Check if assembler supports CET.

  AC_CACHE_CHECK(whether $AS supports CET,

		 libc_cv_x86_cet_as, [dnl

cat > conftest.s <

	incsspd %ecx

EOF

		 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s -o conftest.o 1>&AS_MESSAGE_LOG_FD); then

		   libc_cv_x86_cet_as=yes

		 else

		   libc_cv_x86_cet_as=no

		 fi

		 rm -rf conftest*])

  if test $libc_cv_x86_cet_as = no; then

    AC_MSG_ERROR([$AS doesn't support CET])

  fi

fi

if test $enable_cet = yes; then

  AC_DEFINE(DEFAULT_DL_X86_CET_CONTROL, cet_elf_property)

elif test $enable_cet = permissive; then

  AC_DEFINE(DEFAULT_DL_X86_CET_CONTROL, cet_permissive)

fi

LIBC_CONFIG_VAR([enable-cet], [$enable_cet])