mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-21 20:40:05 +00:00
82 lines
3.2 KiB
C
82 lines
3.2 KiB
C
/* Signal number constants. Generic template.
|
|
Copyright (C) 1991-2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _BITS_SIGNUM_GENERIC_H
|
|
#define _BITS_SIGNUM_GENERIC_H 1
|
|
|
|
#ifndef _SIGNAL_H
|
|
#error "Never include <bits/signum-generic.h> directly; use <signal.h> instead."
|
|
#endif
|
|
|
|
/* Fake signal functions. */
|
|
|
|
#define SIG_ERR ((__sighandler_t) -1) /* Error return. */
|
|
#define SIG_DFL ((__sighandler_t) 0) /* Default action. */
|
|
#define SIG_IGN ((__sighandler_t) 1) /* Ignore signal. */
|
|
|
|
#ifdef __USE_XOPEN
|
|
# define SIG_HOLD ((__sighandler_t) 2) /* Add signal to hold mask. */
|
|
#endif
|
|
|
|
/* We define here all the signal names listed in POSIX (1003.1-2008);
|
|
as of 1003.1-2013, no additional signals have been added by POSIX.
|
|
We also define here signal names that historically exist in every
|
|
real-world POSIX variant (e.g. SIGWINCH).
|
|
|
|
Signals in the 1-15 range are defined with their historical numbers.
|
|
For other signals, we use the BSD numbers.
|
|
There are two unallocated signal numbers in the 1-31 range: 7 and 29.
|
|
Signal number 0 is reserved for use as kill(pid, 0), to test whether
|
|
a process exists without sending it a signal. */
|
|
|
|
/* ISO C99 signals. */
|
|
#define SIGINT 2 /* Interactive attention signal. */
|
|
#define SIGILL 4 /* Illegal instruction. */
|
|
#define SIGABRT 6 /* Abnormal termination. */
|
|
#define SIGFPE 8 /* Erroneous arithmetic operation. */
|
|
#define SIGSEGV 11 /* Invalid access to storage. */
|
|
#define SIGTERM 15 /* Termination request. */
|
|
|
|
/* Historical signals specified by POSIX. */
|
|
#define SIGHUP 1 /* Hangup. */
|
|
#define SIGQUIT 3 /* Quit. */
|
|
#define SIGTRAP 5 /* Trace/breakpoint trap. */
|
|
#define SIGKILL 9 /* Killed. */
|
|
#define SIGPIPE 13 /* Broken pipe. */
|
|
#define SIGALRM 14 /* Alarm clock. */
|
|
|
|
/* Archaic names for compatibility. */
|
|
#define SIGIO SIGPOLL /* I/O now possible (4.2 BSD). */
|
|
#define SIGIOT SIGABRT /* IOT instruction, abort() on a PDP-11. */
|
|
#define SIGCLD SIGCHLD /* Old System V name */
|
|
|
|
/* Not all systems support real-time signals. bits/signum.h indicates
|
|
that they are supported by overriding __SIGRTMAX to a value greater
|
|
than __SIGRTMIN. These constants give the kernel-level hard limits,
|
|
but some real-time signals may be used internally by glibc. Do not
|
|
use these constants in application code; use SIGRTMIN and SIGRTMAX
|
|
(defined in signal.h) instead. */
|
|
|
|
/* Include system specific bits. */
|
|
#include <bits/signum-arch.h>
|
|
|
|
/* Biggest signal number + 1 (including real-time signals). */
|
|
#define _NSIG (__SIGRTMAX + 1)
|
|
|
|
#endif /* bits/signum-generic.h. */
|