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 | /* Copy of sysdeps/generic/longjmp.c modified for backward compatibility |
19 | with old non AltiVec/VMX longjmp. */ |
20 | |
21 | #include <bits/wordsize.h> |
22 | #include <shlib-compat.h> |
23 | #if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4) |
24 | # include <stddef.h> |
25 | # include <novmxsetjmp.h> |
26 | # include <signal.h> |
27 | |
28 | |
29 | /* Set the signal mask to the one specified in ENV, and jump |
30 | to the position specified in ENV, causing the setjmp |
31 | call there to return VAL, or 1 if VAL is 0. */ |
32 | void |
33 | __novmx__libc_siglongjmp (__novmx__sigjmp_buf env, int val) |
34 | { |
35 | /* Perform any cleanups needed by the frames being unwound. */ |
36 | _longjmp_unwind (env, val); |
37 | |
38 | if (env[0].__mask_was_saved) |
39 | /* Restore the saved signal mask. */ |
40 | (void) __sigprocmask (SIG_SETMASK, &env[0].__saved_mask, |
41 | (sigset_t *) NULL); |
42 | |
43 | /* Call the machine-dependent function to restore machine state. */ |
44 | __novmx__longjmp (env[0].__jmpbuf, val ?: 1); |
45 | } |
46 | |
47 | strong_alias (__novmx__libc_siglongjmp, __novmx__libc_longjmp) |
48 | libc_hidden_def (__novmx__libc_longjmp) |
49 | weak_alias (__novmx__libc_siglongjmp, __novmx_longjmp) |
50 | weak_alias (__novmx__libc_siglongjmp, __novmxlongjmp) |
51 | weak_alias (__novmx__libc_siglongjmp, __novmxsiglongjmp) |
52 | |
53 | compat_symbol (libc, __novmx_longjmp, _longjmp, GLIBC_2_0); |
54 | compat_symbol (libc, __novmxlongjmp, longjmp, GLIBC_2_0); |
55 | compat_symbol (libc, __novmxsiglongjmp, siglongjmp, GLIBC_2_0); |
56 | #endif /* defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3_4)) */ |
57 | |