diff options
Diffstat (limited to 'bits/signum.h')
| -rw-r--r-- | bits/signum.h | 72 |
1 files changed, 10 insertions, 62 deletions
diff --git a/bits/signum.h b/bits/signum.h index cfbc7ac8bb..8d6d03c918 100644 --- a/bits/signum.h +++ b/bits/signum.h @@ -1,5 +1,5 @@ /* Signal number constants. Generic version. - Copyright (C) 1991-2017 Free Software Foundation, Inc. + Copyright (C) 2017 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 @@ -16,69 +16,17 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#ifdef _SIGNAL_H +#ifndef _BITS_SIGNUM_H +#define _BITS_SIGNUM_H 1 -/* 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. */ +#ifndef _SIGNAL_H +#error "Never include <bits/signum.h> directly; use <signal.h> instead." #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. */ - -/* 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 SIGBUS 10 /* Bus error. */ -#define SIGSYS 12 /* Bad system call. */ -#define SIGPIPE 13 /* Broken pipe. */ -#define SIGALRM 14 /* Alarm clock. */ - -/* New(er) POSIX signals (1003.1-2008, 1003.1-2013). */ -#define SIGURG 16 /* High bandwidth data is available at a socket. */ -#define SIGSTOP 17 /* Stopped (signal). */ -#define SIGTSTP 18 /* Stopped. */ -#define SIGCONT 19 /* Continued. */ -#define SIGCHLD 20 /* Child terminated or stopped. */ -#define SIGTTIN 21 /* Background read from control terminal. */ -#define SIGTTOU 22 /* Background write to control terminal. */ -#define SIGPOLL 23 /* Pollable event occurred (System V). */ -#define SIGIO SIGPOLL /* I/O now possible (4.2 BSD). */ -#define SIGXCPU 24 /* CPU time limit exceeded. */ -#define SIGXFSZ 25 /* File size limit exceeded. */ -#define SIGVTALRM 26 /* Virtual timer expired. */ -#define SIGPROF 27 /* Profiling timer expired. */ -#define SIGUSR1 30 /* User-defined signal 1. */ -#define SIGUSR2 31 /* User-defined signal 2. */ - -/* Nonstandard signals found in all modern POSIX systems - (including both BSD and Linux). */ -#define SIGWINCH 28 /* Window size change (4.3 BSD, Sun). */ - -#define _NSIG 32 +#include <bits/signum-generic.h> -/* Archaic names for compatibility. */ -#define SIGIOT SIGABRT /* IOT instruction, abort() on a PDP-11. */ -#define SIGCLD SIGCHLD /* Old System V name */ +/* This operating system does not need to override any of the generic + signal number assignments in bits/signum-generic.h, nor to add any + additional signal constants. */ -#endif /* <signal.h> included. */ +#endif /* bits/signum.h. */ |