text: #include <i386/signal.h>
  
  INLINE void *openbsd_stack_pointer(void *uap)
  {
  	struct sigcontext *sc = (struct sigcontext*) uap;
  	return (void *)sc->sc_esp;
  }
  
  #define ucontext_stack_pointer openbsd_stack_pointer
  #define UAP_PROGRAM_COUNTER(uap) (((struct sigcontext*)(uap))->sc_eip)
  