1 | /* longjmp for C-SKY ABIV2. |
2 | Copyright (C) 2018-2024 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 |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the 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 <pointer_guard.h> |
21 | |
22 | ENTRY (__longjmp) |
23 | mov a2, a0 |
24 | mov a0, a1 /* Get the return value in place. */ |
25 | cmpnei a0, 0 |
26 | bt have_return |
27 | movi a0, 1 /* Can't let setjmp() return zero! */ |
28 | have_return: |
29 | #ifdef CHECK_SP |
30 | ldw r10, (a2, 0) /* Jmpbuf's sp. */ |
31 | # ifdef PTR_MANGLE |
32 | PTR_DEMANGLE (r10, r10, a3) |
33 | # endif |
34 | CHECK_SP (r10) |
35 | #endif |
36 | ldw sp, (a2, 0) |
37 | ldw lr, (a2, 4) |
38 | ldw r4, (a2, 8) |
39 | ldw r5, (a2, 12) |
40 | ldw r6, (a2, 16) |
41 | ldw r7, (a2, 20) |
42 | ldw r8, (a2, 24) |
43 | ldw r9, (a2, 28) |
44 | ldw r10, (a2, 32) |
45 | ldw r11, (a2, 36) |
46 | ldw r16, (a2, 40) |
47 | ldw r17, (a2, 44) |
48 | ldw r26, (a2, 48) |
49 | ldw r27, (a2, 52) |
50 | ldw r28, (a2, 56) |
51 | ldw r29, (a2, 60) |
52 | ldw r30, (a2, 64) |
53 | ldw r31, (a2, 68) |
54 | addi a2, 72 |
55 | |
56 | #ifdef PTR_MANGLE |
57 | PTR_DEMANGLE (sp, sp, a3) |
58 | PTR_DEMANGLE2 (lr, lr, a3) |
59 | #endif |
60 | jmp lr |
61 | |
62 | END (__longjmp) |
63 | |