1 | /* Copyright (C) 1991-2017 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 | <http://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <stddef.h> |
19 | #include <setjmp.h> |
20 | #include <signal.h> |
21 | |
22 | |
23 | /* Set the signal mask to the one specified in ENV, and jump |
24 | to the position specified in ENV, causing the setjmp |
25 | call there to return VAL, or 1 if VAL is 0. */ |
26 | void |
27 | __libc_siglongjmp (sigjmp_buf env, int val) |
28 | { |
29 | /* Perform any cleanups needed by the frames being unwound. */ |
30 | _longjmp_unwind (env, val); |
31 | |
32 | if (env[0].__mask_was_saved) |
33 | /* Restore the saved signal mask. */ |
34 | (void) __sigprocmask (SIG_SETMASK, &env[0].__saved_mask, |
35 | (sigset_t *) NULL); |
36 | |
37 | /* Call the machine-dependent function to restore machine state. */ |
38 | __longjmp (env[0].__jmpbuf, val ?: 1); |
39 | } |
40 | |
41 | #ifndef __libc_siglongjmp |
42 | strong_alias (__libc_siglongjmp, __libc_longjmp) |
43 | libc_hidden_def (__libc_longjmp) |
44 | weak_alias (__libc_siglongjmp, _longjmp) |
45 | weak_alias (__libc_siglongjmp, longjmp) |
46 | weak_alias (__libc_siglongjmp, siglongjmp) |
47 | #endif |
48 | |