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1 | /* Copyright (C) 1992-2019 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 <setjmpP.h> | |
20 | #include <signal.h> | |
21 | ||
22 | /* This function is called by the `sigsetjmp' macro | |
23 | before doing a `__setjmp' on ENV[0].__jmpbuf. | |
24 | Always return zero. */ | |
25 | ||
26 | int | |
27 | __sigjmp_save (sigjmp_buf env, int savemask) | |
28 | { | |
29 | env[0].__mask_was_saved = (savemask | |
30 | && __sigprocmask (SIG_BLOCK, (sigset_t *) NULL, | |
31 | (sigset_t *) &env[0].__saved_mask) == 0); | |
32 | ||
33 | return 0; | |
34 | } |