1 | /* Copyright (C) 2002-2016 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <errno.h> |
20 | #include <signal.h> |
21 | #include <sysdep.h> |
22 | #include <tls.h> |
23 | |
24 | |
25 | int |
26 | raise (int sig) |
27 | { |
28 | /* raise is an async-safe function. It could be called while the |
29 | fork function temporarily invalidated the PID field. Adjust for |
30 | that. */ |
31 | pid_t pid = THREAD_GETMEM (THREAD_SELF, pid); |
32 | if (__glibc_unlikely (pid < 0)) |
33 | pid = -pid; |
34 | |
35 | return INLINE_SYSCALL (tgkill, 3, pid, THREAD_GETMEM (THREAD_SELF, tid), |
36 | sig); |
37 | } |
38 | |