adjustpointer(adjinfo, unsafe.Pointer(&s.elem))
	}
}

func fillstack(stk stack, b byte) {
	for p := stk.lo; p < stk.hi; p++ {
		*(*byte)(unsafe.Pointer(p)) = b
	}
}

func findsghi(gp *g, stk stack) uintptr {
	var sghi uintptr
	for sg := gp.waiting; sg != nil; sg = sg.waitlink {
		p := uintptr(sg.elem) + uintptr(sg.c.elemsize)
		if stk.lo <= p && p < stk.hi && p > sghi {
			sghi = p
		}