| // Copyright 2016 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package atomic |
| |
| // Stubs for atomic functions that in gccgo are implemented in C. |
| |
| import "unsafe" |
| |
| //go:noescape |
| func Load(ptr *uint32) uint32 |
| |
| //go:noescape |
| func Loadp(ptr unsafe.Pointer) unsafe.Pointer |
| |
| //go:noescape |
| func Load8(ptr *uint8) uint8 |
| |
| //go:noescape |
| func Load64(ptr *uint64) uint64 |
| |
| //go:noescape |
| func LoadAcq(ptr *uint32) uint32 |
| |
| //go:noescape |
| func Xadd(ptr *uint32, delta int32) uint32 |
| |
| //go:noescape |
| func Xadd64(ptr *uint64, delta int64) uint64 |
| |
| //go:noescape |
| func Xadduintptr(ptr *uintptr, delta uintptr) uintptr |
| |
| //go:noescape |
| func Xchg(ptr *uint32, new uint32) uint32 |
| |
| //go:noescape |
| func Xchg64(ptr *uint64, new uint64) uint64 |
| |
| //go:noescape |
| func Xchguintptr(ptr *uintptr, new uintptr) uintptr |
| |
| //go:noescape |
| func And8(ptr *uint8, val uint8) |
| |
| //go:noescape |
| func Or8(ptr *uint8, val uint8) |
| |
| // NOTE: Do not add atomicxor8 (XOR is not idempotent). |
| |
| //go:noescape |
| func Cas64(ptr *uint64, old, new uint64) bool |
| |
| //go:noescape |
| func CasRel(ptr *uint32, old, new uint32) bool |
| |
| //go:noescape |
| func Store(ptr *uint32, val uint32) |
| |
| //go:noescape |
| func Store8(ptr *uint8, val uint8) |
| |
| //go:noescape |
| func Store64(ptr *uint64, val uint64) |
| |
| //go:noescape |
| func StoreRel(ptr *uint32, val uint32) |
| |
| // StorepNoWB performs *ptr = val atomically and without a write |
| // barrier. |
| // |
| // NO go:noescape annotation; see atomic_pointer.go. |
| func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer) |
