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522e6ee3 | 1 | /* longjmp for Nios II. |
dff8da6b | 2 | Copyright (C) 2015-2024 Free Software Foundation, Inc. |
522e6ee3 CLT |
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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
522e6ee3 CLT |
18 | |
19 | #include <sysdep.h> | |
88f4b692 | 20 | #include <pointer_guard.h> |
522e6ee3 CLT |
21 | #include <jmpbuf-offsets.h> |
22 | ||
23 | /* __longjmp(jmpbuf, val) */ | |
24 | ||
25 | ENTRY (__longjmp) | |
26 | mov r2, r5 | |
27 | bne r5, zero, 1f | |
28 | movi r2, 1 | |
29 | 1: | |
30 | #ifdef PTR_DEMANGLE | |
31 | PTR_MANGLE_GUARD (r3) | |
32 | ldw r5, (JB_RA*4)(r4) | |
33 | ldw r6, (JB_SP*4)(r4) | |
34 | PTR_DEMANGLE (r5, r5, r3) | |
35 | PTR_DEMANGLE (r6, r6, r3) | |
36 | #endif | |
37 | ||
38 | cfi_def_cfa (r4, 0) | |
39 | cfi_offset (r16, JB_R16*4) | |
40 | cfi_offset (r17, JB_R17*4) | |
41 | cfi_offset (r18, JB_R18*4) | |
42 | cfi_offset (r19, JB_R19*4) | |
43 | cfi_offset (r20, JB_R20*4) | |
44 | cfi_offset (r21, JB_R21*4) | |
45 | cfi_offset (r22, JB_R22*4) | |
46 | cfi_offset (fp, JB_FP*4) | |
47 | #ifdef PTR_DEMANGLE | |
48 | cfi_register (ra, r5) | |
49 | cfi_register (sp, r7) | |
50 | #else | |
51 | cfi_offset (ra, JB_RA*4) | |
52 | cfi_offset (sp, JB_SP*4) | |
53 | #endif | |
54 | ldw r16, (JB_R16*4)(r4) | |
55 | ldw r17, (JB_R17*4)(r4) | |
56 | ldw r18, (JB_R18*4)(r4) | |
57 | ldw r19, (JB_R19*4)(r4) | |
58 | ldw r20, (JB_R20*4)(r4) | |
59 | ldw r21, (JB_R21*4)(r4) | |
60 | ldw r22, (JB_R22*4)(r4) | |
61 | ldw fp, (JB_FP*4)(r4) | |
62 | #ifdef PTR_DEMANGLE | |
63 | mov ra, r5 | |
64 | mov sp, r6 | |
65 | #else | |
66 | ldw ra, (JB_RA*4)(r4) | |
67 | ldw sp, (JB_SP*4)(r4) | |
68 | #endif | |
69 | cfi_same_value (r16) | |
70 | cfi_same_value (r17) | |
71 | cfi_same_value (r18) | |
72 | cfi_same_value (r19) | |
73 | cfi_same_value (r20) | |
74 | cfi_same_value (r21) | |
75 | cfi_same_value (r22) | |
76 | cfi_same_value (fp) | |
77 | cfi_same_value (ra) | |
78 | cfi_same_value (sp) | |
79 | ||
80 | ret | |
81 | END (__longjmp) |