1// Copyright 2014 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5// +build 386 amd64p32 arm armbe m68k mips mipsle mips64p32 mips64p32le nios2 ppc s390 sh shbe sparc 6 7package runtime 8 9import "unsafe" 10 11// On 32-bit systems, the stored uint64 has a 32-bit pointer and 32-bit count. 12 13func lfstackPack(node *lfnode, cnt uintptr) uint64 { 14 return uint64(uintptr(unsafe.Pointer(node)))<<32 | uint64(cnt) 15} 16 17func lfstackUnpack(val uint64) *lfnode { 18 return (*lfnode)(unsafe.Pointer(uintptr(val >> 32))) 19} 20