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Diffstat (limited to 'libgo/go/runtime/internal/atomic/gccgo.go')
-rw-r--r-- | libgo/go/runtime/internal/atomic/gccgo.go | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/libgo/go/runtime/internal/atomic/gccgo.go b/libgo/go/runtime/internal/atomic/gccgo.go new file mode 100644 index 00000000000..696736465fd --- /dev/null +++ b/libgo/go/runtime/internal/atomic/gccgo.go @@ -0,0 +1,59 @@ +// 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 Load64(ptr *uint64) uint64 + +//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 Store(ptr *uint32, val uint32) + +//go:noescape +func Store64(ptr *uint64, val uint64) + +// 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) |