glibc (2.38)
1 /* Signal number definitions. Linux version.
2 Copyright (C) 1995-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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 <https://www.gnu.org/licenses/>. */
18
19 #ifndef _BITS_SIGNUM_ARCH_H
20 #define _BITS_SIGNUM_ARCH_H 1
21
22 #ifndef _SIGNAL_H
23 #error "Never include <bits/signum-arch.h> directly; use <signal.h> instead."
24 #endif
25
26 /* Adjustments and additions to the signal number constants for
27 most Linux systems. */
28
29 #define SIGSTKFLT 16 /* Stack fault (obsolete). */
30 #define SIGPWR 30 /* Power failure imminent. */
31
32 /* Historical signals specified by POSIX. */
33 #define SIGBUS 7 /* Bus error. */
34 #define SIGSYS 31 /* Bad system call. */
35
36 /* New(er) POSIX signals (1003.1-2008, 1003.1-2013). */
37 #define SIGURG 23 /* Urgent data is available at a socket. */
38 #define SIGSTOP 19 /* Stop, unblockable. */
39 #define SIGTSTP 20 /* Keyboard stop. */
40 #define SIGCONT 18 /* Continue. */
41 #define SIGCHLD 17 /* Child terminated or stopped. */
42 #define SIGTTIN 21 /* Background read from control terminal. */
43 #define SIGTTOU 22 /* Background write to control terminal. */
44 #define SIGPOLL 29 /* Pollable event occurred (System V). */
45 #define SIGXFSZ 25 /* File size limit exceeded. */
46 #define SIGXCPU 24 /* CPU time limit exceeded. */
47 #define SIGVTALRM 26 /* Virtual timer expired. */
48 #define SIGPROF 27 /* Profiling timer expired. */
49 #define SIGUSR1 10 /* User-defined signal 1. */
50 #define SIGUSR2 12 /* User-defined signal 2. */
51
52 /* Nonstandard signals found in all modern POSIX systems
53 (including both BSD and Linux). */
54 #define SIGWINCH 28 /* Window size change (4.3 BSD, Sun). */
55
56 /* Archaic names for compatibility. */
57 #define SIGIO SIGPOLL /* I/O now possible (4.2 BSD). */
58 #define SIGIOT SIGABRT /* IOT instruction, abort() on a PDP-11. */
59 #define SIGCLD SIGCHLD /* Old System V name */
60
61 #define __SIGRTMIN 32
62 #define __SIGRTMAX 64
63
64 #endif /* <signal.h> included. */
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