blob: 715f4bded19c311ea4159678cfb5862b06a255b7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
dnl
dnl GCC_CET_FLAGS
dnl (SHELL-CODE_HANDLER)
dnl
AC_DEFUN([GCC_CET_FLAGS],[dnl
GCC_ENABLE(cet, default, ,[enable Intel CET in target libraries],
permit yes|no|default)
case "$host" in
i[[34567]]86-*-linux* | x86_64-*-linux*)
case "$enable_cet" in
default)
# Check if assembler supports CET.
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[],
[asm ("setssbsy");])],
[enable_cet=yes],
[enable_cet=no])
;;
yes)
# Check if assembler supports CET.
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[],
[asm ("setssbsy");])],
[],
[AC_MSG_ERROR([assembler with CET support is required for --enable-cet])])
;;
esac
;;
*)
enable_cet=no
;;
esac
if test x$enable_cet = xyes; then
$1="-fcf-protection -mcet"
fi
])
|
