#include #define FRAME_RETURN_ADDRESS(frame) *((XT *)(frame_successor(frame) + 1) + 1) INLINE void *ucontext_stack_pointer(void *uap) { ucontext_t *ucontext = (ucontext_t *)uap; return (void *)ucontext->uc_mcontext.uc_regs->gregs[PT_R1]; } #define UAP_PROGRAM_COUNTER(ucontext) \ (((ucontext_t *)(ucontext))->uc_mcontext.uc_regs->gregs[PT_NIP])