1/* Copyright (C) 1992-2023 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 <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
26int
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}
35