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/* Copyright (C) 2002-2019 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
<https://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)
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