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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
// 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 386
package atomic
import "unsafe"
// Export some functions via linkname to assembly in sync/atomic.
//go:linkname Load
//go:linkname Loadp
//go:nosplit
//go:noinline
func Load(ptr *uint32) uint32 {
return *ptr
}
//go:nosplit
//go:noinline
func Loadp(ptr unsafe.Pointer) unsafe.Pointer {
return *(*unsafe.Pointer)(ptr)
}
//go:nosplit
//go:noinline
func LoadAcq(ptr *uint32) uint32 {
return *ptr
}
//go:nosplit
//go:noinline
func LoadAcquintptr(ptr *uintptr) uintptr {
return *ptr
}
//go:noescape
func Xadd64(ptr *uint64, delta int64) uint64
//go:noescape
func Xadduintptr(ptr *uintptr, delta uintptr) uintptr
//go:noescape
func Xadd(ptr *uint32, delta int32) uint32
//go:noescape
func Xchg64(ptr *uint64, new uint64) uint64
//go:noescape
func Xchg(ptr *uint32, new uint32) uint32
//go:noescape
func Xchguintptr(ptr *uintptr, new uintptr) uintptr
//go:noescape
func Load64(ptr *uint64) uint64
//go:nosplit
//go:noinline
func Load8(ptr *uint8) uint8 {
return *ptr
}
//go:noescape
func And8(ptr *uint8, val uint8)
//go:noescape
func Or8(ptr *uint8, val uint8)
//go:noescape
func And(ptr *uint32, val uint32)
//go:noescape
func Or(ptr *uint32, val uint32)
// 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)
//go:noescape
func StoreReluintptr(ptr *uintptr, val uintptr)
// NO go:noescape annotation; see atomic_pointer.go.
func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer)
|
