glibc/sysdeps/unix/sysv/linux/x86_64/sigprocmask.c

39 lines
1.4 KiB
C

/* Copyright (C) 1997-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Jes Sorensen, <Jes.Sorensen@cern.ch>, April 1999.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
/* Linux/x86_64 only has rt signals, thus we do not even want to try falling
back to the old style signals as the default Linux handler does. */
#include <errno.h>
#include <signal.h>
#include <unistd.h>
#include <sysdep.h>
#include <sys/syscall.h>
/* Get and/or change the set of blocked signals. */
int
__sigprocmask (int how, const sigset_t *set, sigset_t *oset)
{
/* XXX The size argument hopefully will have to be changed to the
real size of the user-level sigset_t. */
return INLINE_SYSCALL (rt_sigprocmask, 4, how, set, oset, _NSIG / 8);
}
weak_alias (__sigprocmask, sigprocmask)