1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
// Copyright 2009 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.
// +build amd64 amd64p32
package runtime
import "unsafe"
// The calls to nop are to keep these functions from being inlined.
// If they are inlined we have no guarantee that later rewrites of the
// code by optimizers will preserve the relative order of memory accesses.
//go:nosplit
func atomicload(ptr *uint32) uint32 {
nop()
return *ptr
}
//go:nosplit
func atomicloadp(ptr unsafe.Pointer) unsafe.Pointer {
nop()
return *(*unsafe.Pointer)(ptr)
}
//go:nosplit
func atomicload64(ptr *uint64) uint64 {
nop()
return *ptr
}
//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
// NO go:noescape annotation; see atomic_pointer.go.
func xchgp1(ptr unsafe.Pointer, new unsafe.Pointer) unsafe.Pointer
//go:noescape
func xchguintptr(ptr *uintptr, new uintptr) uintptr
//go:noescape
func atomicand8(ptr *uint8, val uint8)
//go:noescape
func atomicor8(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 atomicstore(ptr *uint32, val uint32)
//go:noescape
func atomicstore64(ptr *uint64, val uint64)
// NO go:noescape annotation; see atomic_pointer.go.
func atomicstorep1(ptr unsafe.Pointer, val unsafe.Pointer)
|
