diff options
Diffstat (limited to 'libc/sysdeps/x86_64/stackguard-macros.h')
| -rw-r--r-- | libc/sysdeps/x86_64/stackguard-macros.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libc/sysdeps/x86_64/stackguard-macros.h b/libc/sysdeps/x86_64/stackguard-macros.h index d7fedb373..1948800cd 100644 --- a/libc/sysdeps/x86_64/stackguard-macros.h +++ b/libc/sysdeps/x86_64/stackguard-macros.h @@ -4,3 +4,8 @@ ({ uintptr_t x; \ asm ("mov %%fs:%c1, %0" : "=r" (x) \ : "i" (offsetof (tcbhead_t, stack_guard))); x; }) + +#define POINTER_CHK_GUARD \ + ({ uintptr_t x; \ + asm ("mov %%fs:%c1, %0" : "=r" (x) \ + : "i" (offsetof (tcbhead_t, pointer_guard))); x; }) |