| /* 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 <nptl-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) |
