1 // Copyright 2018 The gVisor Authors.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 15 // +build amd64
16 17 #include "textflag.h"
18 19 TEXT ·andUint32(SB),NOSPLIT|NOFRAME,$0-12
20 MOVQ addr+0(FP), BX
21 MOVL val+8(FP), AX
22 LOCK
23 ANDL AX, 0(BX)
24 RET
25 26 TEXT ·orUint32(SB),NOSPLIT|NOFRAME,$0-12
27 MOVQ addr+0(FP), BX
28 MOVL val+8(FP), AX
29 LOCK
30 ORL AX, 0(BX)
31 RET
32 33 TEXT ·xorUint32(SB),NOSPLIT|NOFRAME,$0-12
34 MOVQ addr+0(FP), BX
35 MOVL val+8(FP), AX
36 LOCK
37 XORL AX, 0(BX)
38 RET
39 40 TEXT ·compareAndSwapUint32(SB),NOSPLIT|NOFRAME,$0-20
41 MOVQ addr+0(FP), DI
42 MOVL old+8(FP), AX
43 MOVL new+12(FP), DX
44 LOCK
45 CMPXCHGL DX, 0(DI)
46 MOVL AX, ret+16(FP)
47 RET
48 49 TEXT ·andUint64(SB),NOSPLIT|NOFRAME,$0-16
50 MOVQ addr+0(FP), BX
51 MOVQ val+8(FP), AX
52 LOCK
53 ANDQ AX, 0(BX)
54 RET
55 56 TEXT ·orUint64(SB),NOSPLIT|NOFRAME,$0-16
57 MOVQ addr+0(FP), BX
58 MOVQ val+8(FP), AX
59 LOCK
60 ORQ AX, 0(BX)
61 RET
62 63 TEXT ·xorUint64(SB),NOSPLIT|NOFRAME,$0-16
64 MOVQ addr+0(FP), BX
65 MOVQ val+8(FP), AX
66 LOCK
67 XORQ AX, 0(BX)
68 RET
69 70 TEXT ·compareAndSwapUint64(SB),NOSPLIT|NOFRAME,$0-32
71 MOVQ addr+0(FP), DI
72 MOVQ old+8(FP), AX
73 MOVQ new+16(FP), DX
74 LOCK
75 CMPXCHGQ DX, 0(DI)
76 MOVQ AX, ret+24(FP)
77 RET
78