/* Copyright (C) 2002-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.

   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/>.  */

#include <signal.h>

#include <sysdep.h>

#include <errno.h>

#include <sys/types.h>

#include <unistd.h>

#include <internal-signals.h>

int

raise (int sig)

{

  /* rt_sigprocmask may fail if:

     1. sigsetsize != sizeof (sigset_t) (EINVAL)

     2. a failure in copy from/to user space (EFAULT)

     3. an invalid 'how' operation (EINVAL)

     The first case is already handle in glibc syscall call by using the arch

     defined _NSIG.  Second case is handled by using a stack allocated mask.

     The last one should be handled by the block/unblock functions.  */

  sigset_t set;

  __libc_signal_block_app (&set);

  INTERNAL_SYSCALL_DECL (err);

  pid_t pid = INTERNAL_SYSCALL (getpid, err, 0);

  pid_t tid = INTERNAL_SYSCALL (gettid, err, 0);

  int ret = INLINE_SYSCALL (tgkill, 3, pid, tid, sig);

  __libc_signal_restore_set (&set);

  return ret;

}

libc_hidden_def (raise)

weak_alias (raise, gsignal)