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 arm nacl 6 7 package runtime 8 9 import "unsafe" 10 11 // On 32-bit systems, the stored uint64 has a 32-bit pointer and 32-bit count. 12 13 func lfstackPack(node *lfnode, cnt uintptr) uint64 { 14 return uint64(uintptr(unsafe.Pointer(node)))<<32 | uint64(cnt) 15 } 16 17 func lfstackUnpack(val uint64) (node *lfnode, cnt uintptr) { 18 node = (*lfnode)(unsafe.Pointer(uintptr(val >> 32))) 19 cnt = uintptr(val) 20 return 21 } 22
