diff options
Diffstat (limited to 'config/cet.m4')
| -rw-r--r-- | config/cet.m4 | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/config/cet.m4 b/config/cet.m4 index d9608699cd5..2bb2c8a95ac 100644 --- a/config/cet.m4 +++ b/config/cet.m4 @@ -3,7 +3,7 @@ dnl GCC_CET_FLAGS dnl (SHELL-CODE_HANDLER) dnl AC_DEFUN([GCC_CET_FLAGS],[dnl -GCC_ENABLE(cet, no, ,[enable Intel CET in target libraries], +GCC_ENABLE(cet, auto, ,[enable Intel CET in target libraries], permit yes|no|auto) AC_MSG_CHECKING([for CET support]) @@ -13,6 +13,8 @@ case "$host" in auto) # Check if target supports multi-byte NOPs # and if assembler supports CET insn. + save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -fcf-protection" AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [], @@ -25,6 +27,7 @@ asm ("setssbsy"); ])], [enable_cet=yes], [enable_cet=no]) + CFLAGS="$save_CFLAGS" ;; yes) # Check if assembler supports CET. |