diff options
Diffstat (limited to 'sysdeps/x86_64')
| -rw-r--r-- | sysdeps/x86_64/stackguard-macros.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/x86_64/stackguard-macros.h b/sysdeps/x86_64/stackguard-macros.h new file mode 100644 index 0000000000..d7fedb3737 --- /dev/null +++ b/sysdeps/x86_64/stackguard-macros.h @@ -0,0 +1,6 @@ +#include <stdint.h> + +#define STACK_CHK_GUARD \ + ({ uintptr_t x; \ + asm ("mov %%fs:%c1, %0" : "=r" (x) \ + : "i" (offsetof (tcbhead_t, stack_guard))); x; }) |