1 | /* longjmp for Nios II. |
2 | Copyright (C) 2015-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public License as |
7 | published by the Free Software Foundation; either version 2.1 of the |
8 | License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library. If not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <sysdep.h> |
20 | #include <jmpbuf-offsets.h> |
21 | |
22 | /* __longjmp(jmpbuf, val) */ |
23 | |
24 | ENTRY (__longjmp) |
25 | mov r2, r5 |
26 | bne r5, zero, 1f |
27 | movi r2, 1 |
28 | 1: |
29 | #ifdef PTR_DEMANGLE |
30 | PTR_MANGLE_GUARD (r3) |
31 | ldw r5, (JB_RA*4)(r4) |
32 | ldw r6, (JB_SP*4)(r4) |
33 | PTR_DEMANGLE (r5, r5, r3) |
34 | PTR_DEMANGLE (r6, r6, r3) |
35 | #endif |
36 | |
37 | cfi_def_cfa (r4, 0) |
38 | cfi_offset (r16, JB_R16*4) |
39 | cfi_offset (r17, JB_R17*4) |
40 | cfi_offset (r18, JB_R18*4) |
41 | cfi_offset (r19, JB_R19*4) |
42 | cfi_offset (r20, JB_R20*4) |
43 | cfi_offset (r21, JB_R21*4) |
44 | cfi_offset (r22, JB_R22*4) |
45 | cfi_offset (fp, JB_FP*4) |
46 | #ifdef PTR_DEMANGLE |
47 | cfi_register (ra, r5) |
48 | cfi_register (sp, r7) |
49 | #else |
50 | cfi_offset (ra, JB_RA*4) |
51 | cfi_offset (sp, JB_SP*4) |
52 | #endif |
53 | ldw r16, (JB_R16*4)(r4) |
54 | ldw r17, (JB_R17*4)(r4) |
55 | ldw r18, (JB_R18*4)(r4) |
56 | ldw r19, (JB_R19*4)(r4) |
57 | ldw r20, (JB_R20*4)(r4) |
58 | ldw r21, (JB_R21*4)(r4) |
59 | ldw r22, (JB_R22*4)(r4) |
60 | ldw fp, (JB_FP*4)(r4) |
61 | #ifdef PTR_DEMANGLE |
62 | mov ra, r5 |
63 | mov sp, r6 |
64 | #else |
65 | ldw ra, (JB_RA*4)(r4) |
66 | ldw sp, (JB_SP*4)(r4) |
67 | #endif |
68 | cfi_same_value (r16) |
69 | cfi_same_value (r17) |
70 | cfi_same_value (r18) |
71 | cfi_same_value (r19) |
72 | cfi_same_value (r20) |
73 | cfi_same_value (r21) |
74 | cfi_same_value (r22) |
75 | cfi_same_value (fp) |
76 | cfi_same_value (ra) |
77 | cfi_same_value (sp) |
78 | |
79 | ret |
80 | END (__longjmp) |
81 | |