16 lines
439 B
C
16 lines
439 B
C
#include <stdint.h>
|
|
|
|
#define STACK_CHK_GUARD \
|
|
({ uintptr_t x; __asm__ ("ear %0,%%a0; l %0,0x14(%0)" : "=a" (x)); x; })
|
|
|
|
/* On s390/s390x there is no unique pointer guard, instead we use the
|
|
same value as the stack guard. */
|
|
#define POINTER_CHK_GUARD \
|
|
({ \
|
|
uintptr_t x; \
|
|
__asm__ ("ear %0,%%a0; l %0,%1(%0)" \
|
|
: "=a" (x) \
|
|
: "i" (offsetof (tcbhead_t, stack_guard))); \
|
|
x; \
|
|
})
|