return pc.cast(vp), sp.cast(vp)
	# Otherwise, the goroutine is running, so it doesn't have
	# saved scheduler state. Find G's OS thread.
	m = ptr['m']
	if m == 0:
		return None, None
	for thr in gdb.selected_inferior().threads():
		if thr.ptid[1] == m['procid']:
			break
	else:
		return None, None
	# Get scheduler state from the G's OS thread state.
	curthr = gdb.selected_thread()
	try:
		thr.switch()