#include <stdint.h>

#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;												\

   })