]>
Commit | Line | Data |
---|---|---|
db54f488 | 1 | /* Copyright (C) 2002, 2003 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 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
76a50749 UD |
18 | |
19 | #include <errno.h> | |
20 | #include <signal.h> | |
21 | #include <sysdep.h> | |
22 | #include <tls.h> | |
db54f488 | 23 | #include <kernel-features.h> |
76a50749 UD |
24 | |
25 | ||
26 | int | |
27 | raise (sig) | |
28 | int sig; | |
29 | { | |
c0ecb80a UD |
30 | #if __ASSUME_TGKILL || defined __NR_tgkill |
31 | /* raise is an async-safe function. It could be called while the | |
32 | fork function temporarily invalidated the PID field. Adjust for | |
33 | that. */ | |
34 | pid_t pid = THREAD_GETMEM (THREAD_SELF, pid); | |
35 | if (__builtin_expect (pid < 0, 0)) | |
36 | pid = -pid; | |
37 | #endif | |
38 | ||
db54f488 | 39 | #if __ASSUME_TGKILL |
c0ecb80a UD |
40 | return INLINE_SYSCALL (tgkill, 3, pid, THREAD_GETMEM (THREAD_SELF, tid), |
41 | sig); | |
db54f488 UD |
42 | #else |
43 | # ifdef __NR_tgkill | |
c0ecb80a UD |
44 | int res = INLINE_SYSCALL (tgkill, 3, pid, THREAD_GETMEM (THREAD_SELF, tid), |
45 | sig); | |
db54f488 UD |
46 | if (res != -1 || errno != ENOSYS) |
47 | return res; | |
48 | # endif | |
49 | return INLINE_SYSCALL (tkill, 2, THREAD_GETMEM (THREAD_SELF, tid), sig); | |
50 | #endif | |
76a50749 | 51 | } |