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688903eb | 1 | /* Copyright (C) 1992-2018 Free Software Foundation, Inc. |
c84142e8 | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
c84142e8 | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
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. | |
28f540f4 | 8 | |
c84142e8 UD |
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 | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
28f540f4 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
28f540f4 | 17 | |
28f540f4 | 18 | #include <stddef.h> |
f33632cc | 19 | #include <setjmpP.h> |
28f540f4 RM |
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 | |
c84142e8 | 27 | __sigjmp_save (sigjmp_buf env, int savemask) |
28f540f4 RM |
28 | { |
29 | env[0].__mask_was_saved = (savemask && | |
30 | __sigprocmask (SIG_BLOCK, (sigset_t *) NULL, | |
f33632cc | 31 | (sigset_t *) &env[0].__saved_mask) == 0); |
28f540f4 RM |
32 | |
33 | return 0; | |
34 | } |