1 /* raise.c - Generic raise implementation.
2 Copyright (C) 2008-2022 Free Software Foundation, Inc.
3
4 This file is part of the GNU Hurd.
5
6 The GNU Hurd is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public License
8 as published by the Free Software Foundation; either version 3 of
9 the License, or (at your option) any later version.
10
11 The GNU Hurd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with this program. If not, see
18 <https://www.gnu.org/licenses/>. */
19
20 #include <ldsodefs.h>
21 #include <pthreadP.h>
22 #include <signal.h>
23 #include <unistd.h>
24
25 #pragma weak __pthread_kill
26 #pragma weak __pthread_self
27 #pragma weak __pthread_threads
28
29 #ifndef SHARED
30 #pragma weak _dl_pthread_threads
31 #endif
32
33 int
raise(int signo)34 raise (int signo)
35 {
36 /* According to POSIX, if we implement threads (and we do), then
37 "the effect of the raise() function shall be equivalent to
38 calling: pthread_kill(pthread_self(), sig);" */
39
40 if (__pthread_kill != NULL && GL (dl_pthread_threads) != NULL)
41 {
42 int err;
43 err = __pthread_kill (__pthread_self (), signo);
44 if (err)
45 {
46 errno = err;
47 return -1;
48 }
49 return 0;
50 }
51 else
52 return __kill (__getpid (), signo);
53 }
54
55 libc_hidden_def (raise)
56 weak_alias (raise, gsignal)
57