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
103
104
105
106
107
108
109
|
// Copyright 2012 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.
#include "textflag.h"
// FreeBSD/ARM atomic operations.
// TODO(minux): this only supports ARMv6K or higher.
TEXT ·CompareAndSwapInt32(SB),NOSPLIT,$0
B ·CompareAndSwapUint32(SB)
TEXT ·CompareAndSwapUint32(SB),NOSPLIT,$0
B ·armCompareAndSwapUint32(SB)
TEXT ·CompareAndSwapUintptr(SB),NOSPLIT,$0
B ·CompareAndSwapUint32(SB)
TEXT ·CompareAndSwapPointer(SB),NOSPLIT,$0
B ·CompareAndSwapUint32(SB)
TEXT ·AddInt32(SB),NOSPLIT,$0
B ·AddUint32(SB)
TEXT ·AddUint32(SB),NOSPLIT,$0
B ·armAddUint32(SB)
TEXT ·AddUintptr(SB),NOSPLIT,$0
B ·AddUint32(SB)
TEXT ·SwapInt32(SB),NOSPLIT,$0
B ·SwapUint32(SB)
TEXT ·SwapUint32(SB),NOSPLIT,$0
B ·armSwapUint32(SB)
TEXT ·SwapUintptr(SB),NOSPLIT,$0
B ·SwapUint32(SB)
TEXT ·SwapPointer(SB),NOSPLIT,$0
B ·SwapUint32(SB)
TEXT ·CompareAndSwapInt64(SB),NOSPLIT,$0
B ·CompareAndSwapUint64(SB)
TEXT ·CompareAndSwapUint64(SB),NOSPLIT,$-4
B ·armCompareAndSwapUint64(SB)
TEXT ·AddInt64(SB),NOSPLIT,$0
B ·addUint64(SB)
TEXT ·AddUint64(SB),NOSPLIT,$0
B ·addUint64(SB)
TEXT ·SwapInt64(SB),NOSPLIT,$0
B ·swapUint64(SB)
TEXT ·SwapUint64(SB),NOSPLIT,$0
B ·swapUint64(SB)
TEXT ·LoadInt32(SB),NOSPLIT,$0
B ·LoadUint32(SB)
TEXT ·LoadUint32(SB),NOSPLIT,$0-8
MOVW addr+0(FP), R1
load32loop:
LDREX (R1), R2 // loads R2
STREX R2, (R1), R0 // stores R2
CMP $0, R0
BNE load32loop
MOVW R2, val+4(FP)
RET
TEXT ·LoadInt64(SB),NOSPLIT,$0
B ·loadUint64(SB)
TEXT ·LoadUint64(SB),NOSPLIT,$0
B ·loadUint64(SB)
TEXT ·LoadUintptr(SB),NOSPLIT,$0
B ·LoadUint32(SB)
TEXT ·LoadPointer(SB),NOSPLIT,$0
B ·LoadUint32(SB)
TEXT ·StoreInt32(SB),NOSPLIT,$0
B ·StoreUint32(SB)
TEXT ·StoreUint32(SB),NOSPLIT,$0-8
MOVW addr+0(FP), R1
MOVW val+4(FP), R2
storeloop:
LDREX (R1), R4 // loads R4
STREX R2, (R1), R0 // stores R2
CMP $0, R0
BNE storeloop
RET
TEXT ·StoreInt64(SB),NOSPLIT,$0
B ·storeUint64(SB)
TEXT ·StoreUint64(SB),NOSPLIT,$0
B ·storeUint64(SB)
TEXT ·StoreUintptr(SB),NOSPLIT,$0
B ·StoreUint32(SB)
TEXT ·StorePointer(SB),NOSPLIT,$0
B ·StoreUint32(SB)
|
