diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | elf/stackguard-macros.h | 4 |
2 files changed, 8 insertions, 1 deletions
@@ -1,5 +1,10 @@ 2012-05-11 H.J. Lu <hongjiu.lu@intel.com> + * elf/stackguard-macros.h (STACK_CHK_GUARD) [__x86_64__]: Use + "%c1" with "i" (offsetof (tcbhead_t, stack_guard)). + +2012-05-11 H.J. Lu <hongjiu.lu@intel.com> + * elf/tls-macros.h (TLS_LE): Use mov instead of movq to load thread pointer. (TLS_IE): Use mov/add instead of movq/addq to load thread diff --git a/elf/stackguard-macros.h b/elf/stackguard-macros.h index a9889cf7b2..0cad31550c 100644 --- a/elf/stackguard-macros.h +++ b/elf/stackguard-macros.h @@ -5,7 +5,9 @@ ({ uintptr_t x; asm ("movl %%gs:0x14, %0" : "=r" (x)); x; }) #elif defined __x86_64__ # define STACK_CHK_GUARD \ - ({ uintptr_t x; asm ("movq %%fs:0x28, %0" : "=r" (x)); x; }) + ({ uintptr_t x; \ + asm ("mov %%fs:%c1, %0" : "=r" (x) \ + : "i" (offsetof (tcbhead_t, stack_guard))); x; }) #elif defined __powerpc64__ # define STACK_CHK_GUARD \ ({ uintptr_t x; asm ("ld %0,-28688(13)" : "=r" (x)); x; }) |