https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84521
--- Comment #6 from Wilco <wilco at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #5) > (completely untested) would require frame pointers for all setjmp calls, not > just __builtin_setjmp. That's the correct approach indeed, however aarch64_frame_pointer_required is no longer used, this now needs to added to aarch64_layout_frame: /* Force a frame chain for EH returns so the return address is at FP+8. */ cfun->machine->frame.emit_frame_chain = frame_pointer_needed || crtl->calls_eh_return; > BTW, does __builtin_return_address really work on aarch64 without frame > pointers? Various other targets require frame pointers when > cfun->machine->access_prev_frame (i.e. when SETUP_FRAME_ADDRESSES () has > been used). It only supports returning the return address of the current function (and even that is most likely a bug rather than useful). When level != 0 it always returns 0.