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
| /* SPDX-License-Identifier: GPL-2.0 */
| #include "common.h"
|
| /*
| * Checks that registers contain what we expect, ie. they were not clobbered by
| * the syscall.
| *
| * r15: pattern to check registers against.
| *
| * At the end r3 == 0 if everything's OK.
| */
| nop # guaranteed to be illegal in reverse-endian
| mr r9,r15
| cmpd r9,r3 # check r3
| bne 1f
| addi r9,r15,4 # check r4
| cmpd r9,r4
| bne 1f
| lis r9,0x00FF # check CR
| ori r9,r9,0xF000
| mfcr r10
| and r10,r10,r9
| cmpw r9,r10
| addi r9,r15,34
| bne 1f
| addi r9,r15,32 # check LR
| mflr r10
| cmpd r9,r10
| bne 1f
| addi r9,r15,5 # check r5
| cmpd r9,r5
| bne 1f
| addi r9,r15,6 # check r6
| cmpd r9,r6
| bne 1f
| addi r9,r15,7 # check r7
| cmpd r9,r7
| bne 1f
| addi r9,r15,8 # check r8
| cmpd r9,r8
| bne 1f
| addi r9,r15,13 # check r13
| cmpd r9,r13
| bne 1f
| addi r9,r15,14 # check r14
| cmpd r9,r14
| bne 1f
| addi r9,r15,16 # check r16
| cmpd r9,r16
| bne 1f
| addi r9,r15,17 # check r17
| cmpd r9,r17
| bne 1f
| addi r9,r15,18 # check r18
| cmpd r9,r18
| bne 1f
| addi r9,r15,19 # check r19
| cmpd r9,r19
| bne 1f
| addi r9,r15,20 # check r20
| cmpd r9,r20
| bne 1f
| addi r9,r15,21 # check r21
| cmpd r9,r21
| bne 1f
| addi r9,r15,22 # check r22
| cmpd r9,r22
| bne 1f
| addi r9,r15,23 # check r23
| cmpd r9,r23
| bne 1f
| addi r9,r15,24 # check r24
| cmpd r9,r24
| bne 1f
| addi r9,r15,25 # check r25
| cmpd r9,r25
| bne 1f
| addi r9,r15,26 # check r26
| cmpd r9,r26
| bne 1f
| addi r9,r15,27 # check r27
| cmpd r9,r27
| bne 1f
| addi r9,r15,28 # check r28
| cmpd r9,r28
| bne 1f
| addi r9,r15,29 # check r29
| cmpd r9,r29
| bne 1f
| addi r9,r15,30 # check r30
| cmpd r9,r30
| bne 1f
| addi r9,r15,31 # check r31
| cmpd r9,r31
| bne 1f
| b 2f
| 1: mr r3, r9
| li r0, __NR_exit
| sc
| 2: li r0, __NR_switch_endian
| nop
|
|
