diff options
Diffstat (limited to 'libc/sysdeps/powerpc/powerpc32/stackguard-macros.h')
| -rw-r--r-- | libc/sysdeps/powerpc/powerpc32/stackguard-macros.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/libc/sysdeps/powerpc/powerpc32/stackguard-macros.h b/libc/sysdeps/powerpc/powerpc32/stackguard-macros.h index 839f6a4b9..b3d0af830 100644 --- a/libc/sysdeps/powerpc/powerpc32/stackguard-macros.h +++ b/libc/sysdeps/powerpc/powerpc32/stackguard-macros.h @@ -2,3 +2,13 @@ #define STACK_CHK_GUARD \ ({ uintptr_t x; asm ("lwz %0,-28680(2)" : "=r" (x)); x; }) + +#define POINTER_CHK_GUARD \ + ({ \ + uintptr_t x; \ + asm ("lwz %0,%1(2)" \ + : "=r" (x) \ + : "i" (offsetof (tcbhead_t, pointer_guard) - TLS_TCB_OFFSET - sizeof (tcbhead_t)) \ + ); \ + x; \ + }) |