vm/os-linux-x86.64.h

   1 #include <ucontext.h>
   2
   3 INLINE void *ucontext_stack_pointer(void *uap)
   4 {
   5         ucontext_t *ucontext = (ucontext_t *)uap;
   6         return (void *)ucontext->uc_mcontext.gregs[15];
   7 }
   8
   9 #define UAP_PROGRAM_COUNTER(ucontext) \
  10         (((ucontext_t *)(ucontext))->uc_mcontext.gregs[16])