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
|
/* setjmp for Nios II.
Copyright (C) 1991-2019 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
<https://www.gnu.org/licenses/>. */
#include <sysdep.h>
#include <jmpbuf-offsets.h>
.text
ENTRY(setjmp)
movi r5, 1
br __sigsetjmp
END(setjmp)
ENTRY(_setjmp)
mov r5, zero
br __sigsetjmp
END(_setjmp)
libc_hidden_def (_setjmp)
/* Save the current program position in ENV and return 0. */
ENTRY(__sigsetjmp)
#ifdef PTR_MANGLE
PTR_MANGLE_GUARD (r9)
#endif
stw r16, (JB_R16*4)(r4)
stw r17, (JB_R17*4)(r4)
stw r18, (JB_R18*4)(r4)
stw r19, (JB_R19*4)(r4)
stw r20, (JB_R20*4)(r4)
stw r21, (JB_R21*4)(r4)
stw r22, (JB_R22*4)(r4)
stw fp, (JB_FP*4)(r4)
#ifdef PTR_MANGLE
PTR_MANGLE (r6, ra, r9)
PTR_MANGLE (r7, sp, r9)
stw r6, (JB_RA*4)(r4)
stw r7, (JB_SP*4)(r4)
#else
stw ra, (JB_RA*4)(r4)
stw sp, (JB_SP*4)(r4)
#endif
#if IS_IN (rtld)
/* In ld.so we never save the signal mask. */
mov r2, zero
ret
#else
/* Save the signal mask if requested. */
#if defined(__PIC__) || defined(PIC)
nextpc r2
1: movhi r3, %hiadj(__sigjmp_save - 1b)
addi r3, r3, %lo(__sigjmp_save - 1b)
add r2, r2, r3
jmp r2
#else
jmpi __sigjmp_save
#endif
#endif
END (__sigsetjmp)
libc_hidden_def (__sigsetjmp)
|
