1/* Copyright (C) 1997-2016 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/* Linux/x86_64 only has rt signals, thus we do not even want to try falling
19 back to the old style signals as the default Linux handler does. */
20
21#include <errno.h>
22#include <signal.h>
23#include <unistd.h>
24
25#include <sysdep.h>
26#include <sys/syscall.h>
27
28/* Change the set of blocked signals to SET,
29 wait until a signal arrives, and restore the set of blocked signals. */
30int
31sigpending (sigset_t *set)
32{
33 /* XXX The size argument hopefully will have to be changed to the
34 real size of the user-level sigset_t. */
35 return INLINE_SYSCALL (rt_sigpending, 2, set, _NSIG / 8);
36}
37