1 | /* Copyright (C) 1991-2024 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <sysdep.h> |
19 | #include <pointer_guard.h> |
20 | #include <sys/trap.h> |
21 | |
22 | #include <jmpbuf-offsets.h> |
23 | |
24 | ENTRY(_setjmp) |
25 | b 1f |
26 | set 0, %o1 |
27 | END(_setjmp) |
28 | libc_hidden_def (_setjmp) |
29 | |
30 | ENTRY(setjmp) |
31 | set 1, %o1 |
32 | END(setjmp) |
33 | |
34 | ENTRY (__sigsetjmp) |
35 | 1: |
36 | /* Save our PC, SP and FP. Save the signal mask if requested with |
37 | a tail-call for simplicity; it always returns zero. */ |
38 | ta ST_FLUSH_WINDOWS |
39 | |
40 | #ifdef PTR_MANGLE |
41 | PTR_MANGLE (%g1, %o7, %g4) |
42 | PTR_MANGLE2 (%g2, %sp, %g4) |
43 | PTR_MANGLE2 (%g3, %fp, %g4) |
44 | st %g1, [%o0 + (JB_PC * 4)] |
45 | st %g2, [%o0 + (JB_SP * 4)] |
46 | st %g3, [%o0 + (JB_FP * 4)] |
47 | #else |
48 | st %o7, [%o0 + (JB_PC * 4)] |
49 | st %sp, [%o0 + (JB_SP * 4)] |
50 | st %fp, [%o0 + (JB_FP * 4)] |
51 | #endif |
52 | |
53 | mov %o7, %g1 |
54 | call __sigjmp_save |
55 | mov %g1, %o7 |
56 | END(__sigsetjmp) |
57 | hidden_def (__sigsetjmp) |
58 | |
59 | weak_extern(_setjmp) |
60 | weak_extern(setjmp) |
61 | |