| /* Signal number constants.  Generic version. | 
 |    Copyright (C) 1991-2016 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 | 
 |    <http://www.gnu.org/licenses/>.  */ | 
 |  | 
 | #ifdef	_SIGNAL_H | 
 |  | 
 | /* 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_UNIX98 | 
 | # 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.  */ | 
 |  | 
 | /* 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 | 
 |  | 
 | /* Archaic names for compatibility. */ | 
 | #define	SIGIOT		SIGABRT	/* IOT instruction, abort() on a PDP-11.  */ | 
 | #define	SIGCLD		SIGCHLD	/* Old System V name */ | 
 |  | 
 | #endif	/* <signal.h> included.  */ |