| /* Copyright (C) 2002, 2003 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, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <errno.h> |
| #include <signal.h> |
| #include <sysdep.h> |
| #include <tls.h> |
| #include <kernel-features.h> |
| |
| |
| int |
| raise (sig) |
| int sig; |
| { |
| #if __ASSUME_TGKILL || defined __NR_tgkill |
| /* raise is an async-safe function. It could be called while the |
| fork function temporarily invalidated the PID field. Adjust for |
| that. */ |
| pid_t pid = THREAD_GETMEM (THREAD_SELF, pid); |
| if (__builtin_expect (pid < 0, 0)) |
| pid = -pid; |
| #endif |
| |
| #if __ASSUME_TGKILL |
| return INLINE_SYSCALL (tgkill, 3, pid, THREAD_GETMEM (THREAD_SELF, tid), |
| sig); |
| #else |
| # ifdef __NR_tgkill |
| int res = INLINE_SYSCALL (tgkill, 3, pid, THREAD_GETMEM (THREAD_SELF, tid), |
| sig); |
| if (res != -1 || errno != ENOSYS) |
| return res; |
| # endif |
| return INLINE_SYSCALL (tkill, 2, THREAD_GETMEM (THREAD_SELF, tid), sig); |
| #endif |
| } |