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d614a753 | 1 | /* Copyright (C) 2002-2020 Free Software Foundation, Inc. |
76a50749 UD |
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 | |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
76a50749 | 18 | |
76a50749 UD |
19 | #include <signal.h> |
20 | #include <sysdep.h> | |
2ac88eec AZ |
21 | #include <errno.h> |
22 | #include <sys/types.h> | |
23 | #include <unistd.h> | |
92aabad9 | 24 | #include <internal-signals.h> |
76a50749 UD |
25 | |
26 | int | |
bd2260a2 | 27 | raise (int sig) |
76a50749 | 28 | { |
2ac88eec AZ |
29 | /* rt_sigprocmask may fail if: |
30 | ||
31 | 1. sigsetsize != sizeof (sigset_t) (EINVAL) | |
32 | 2. a failure in copy from/to user space (EFAULT) | |
33 | 3. an invalid 'how' operation (EINVAL) | |
34 | ||
35 | The first case is already handle in glibc syscall call by using the arch | |
36 | defined _NSIG. Second case is handled by using a stack allocated mask. | |
37 | The last one should be handled by the block/unblock functions. */ | |
38 | ||
39 | sigset_t set; | |
40 | __libc_signal_block_app (&set); | |
41 | ||
42 | INTERNAL_SYSCALL_DECL (err); | |
43 | pid_t pid = INTERNAL_SYSCALL (getpid, err, 0); | |
44 | pid_t tid = INTERNAL_SYSCALL (gettid, err, 0); | |
45 | ||
46 | int ret = INLINE_SYSCALL (tgkill, 3, pid, tid, sig); | |
47 | ||
48 | __libc_signal_restore_set (&set); | |
49 | ||
50 | return ret; | |
76a50749 | 51 | } |
18910023 | 52 | libc_hidden_def (raise) |
3d539579 | 53 | weak_alias (raise, gsignal) |