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
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
/* Install given context.
Copyright (C) 2005-2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include "ucontext_i.h"
/* int __setcontext (const ucontext_t *uc); */
.text
.align 5
ENTRY(__setcontext)
mov r4, r8
/* sigprocmask (SIG_SETMASK, &uc->uc_sigmask, NULL). */
mov r4, r5
add #(oSIGMASK/2), r5
add #(oSIGMASK/2), r5
mov #SIG_SETMASK, r4
mov #0, r6
mov #+SYS_ify(sigprocmask), r3
trapa #0x13
mov r0, r1
mov #-12, r2
shad r2, r1
not r1, r1 // r1=0 means r0 = -1 to -4095
tst r1, r1 // i.e. error in linux
bf .Lsetcontext_restore
.Lsyscall_error:
SYSCALL_ERROR_HANDLER
.Lpseudo_end:
rts
nop
.Lsetcontext_restore:
#ifdef __SH_FPU_ANY__
mov r8, r0
add #(oFR0),r0
fmov.s @r0+, fr0
fmov.s @r0+, fr1
fmov.s @r0+, fr2
fmov.s @r0+, fr3
fmov.s @r0+, fr4
fmov.s @r0+, fr5
fmov.s @r0+, fr6
fmov.s @r0+, fr7
fmov.s @r0+, fr8
fmov.s @r0+, fr9
fmov.s @r0+, fr10
fmov.s @r0+, fr11
fmov.s @r0+, fr12
fmov.s @r0+, fr13
fmov.s @r0+, fr14
fmov.s @r0+, fr15
frchg
fmov.s @r0+, fr0
fmov.s @r0+, fr1
fmov.s @r0+, fr2
fmov.s @r0+, fr3
fmov.s @r0+, fr4
fmov.s @r0+, fr5
fmov.s @r0+, fr6
fmov.s @r0+, fr7
fmov.s @r0+, fr8
fmov.s @r0+, fr9
fmov.s @r0+, fr10
fmov.s @r0+, fr11
fmov.s @r0+, fr12
fmov.s @r0+, fr13
fmov.s @r0+, fr14
fmov.s @r0+, fr15
frchg
lds.l @r0+, fpscr
lds.l @r0+, fpul
#endif /* __SH_FPU_ANY__ */
mov r8, r0
add #(oPC), r0
mov.l @r0+, r2
lds.l @r0+, pr
/* Restore T frag. */
mov.l @r0+, r1
shlr r1
/* Skip GBR which is used for thread pointer. */
add #4, r0
lds.l @r0+, mach
lds.l @r0+, macl
mov r8, r0
add #(oR9), r0
mov.l @r0+, r9
mov.l @r0+, r10
mov.l @r0+, r11
mov.l @r0+, r12
mov.l @r0+, r13
mov.l @r0+, r14
mov.l @r0+, r15
mov r8, r0
mov.l @(oR0,r0), r1
mov.l r1, @-r15
cfi_adjust_cfa_offset(4)
cfi_rel_offset (r1, 0)
mov.l r2, @-r15
cfi_adjust_cfa_offset(4)
cfi_rel_offset (r2, 0)
mov.l @(oR1,r0), r1
mov.l @(oR2,r0), r2
mov.l @(oR3,r0), r3
mov.l @(oR4,r0), r4
mov.l @(oR5,r0), r5
mov.l @(oR6,r0), r6
mov.l @(oR7,r0), r7
mov.l @(oR8,r0), r8
mov.l @r15+, r0
cfi_adjust_cfa_offset(-4)
jmp @r0
mov.l @r15+, r0
PSEUDO_END(__setcontext)
weak_alias (__setcontext, setcontext)
|
GitWeb