|  | /* Signal number definitions.  Linux version. | 
|  | Copyright (C) 1995,1996,1997,1998,1999,2003 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, write to the Free | 
|  | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | 
|  | 02111-1307 USA.  */ | 
|  |  | 
|  | #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 | 
|  |  | 
|  |  | 
|  | /* Signals.  */ | 
|  | #define	SIGHUP		1	/* Hangup (POSIX).  */ | 
|  | #define	SIGINT		2	/* Interrupt (ANSI).  */ | 
|  | #define	SIGQUIT		3	/* Quit (POSIX).  */ | 
|  | #define	SIGILL		4	/* Illegal instruction (ANSI).  */ | 
|  | #define	SIGTRAP		5	/* Trace trap (POSIX).  */ | 
|  | #define	SIGABRT		6	/* Abort (ANSI).  */ | 
|  | #define	SIGIOT		6	/* IOT trap (4.2 BSD).  */ | 
|  | #define	SIGBUS		7	/* BUS error (4.2 BSD).  */ | 
|  | #define	SIGFPE		8	/* Floating-point exception (ANSI).  */ | 
|  | #define	SIGKILL		9	/* Kill, unblockable (POSIX).  */ | 
|  | #define	SIGUSR1		10	/* User-defined signal 1 (POSIX).  */ | 
|  | #define	SIGSEGV		11	/* Segmentation violation (ANSI).  */ | 
|  | #define	SIGUSR2		12	/* User-defined signal 2 (POSIX).  */ | 
|  | #define	SIGPIPE		13	/* Broken pipe (POSIX).  */ | 
|  | #define	SIGALRM		14	/* Alarm clock (POSIX).  */ | 
|  | #define	SIGTERM		15	/* Termination (ANSI).  */ | 
|  | #define	SIGSTKFLT	16	/* Stack fault.  */ | 
|  | #define	SIGCLD		SIGCHLD	/* Same as SIGCHLD (System V).  */ | 
|  | #define	SIGCHLD		17	/* Child status has changed (POSIX).  */ | 
|  | #define	SIGCONT		18	/* Continue (POSIX).  */ | 
|  | #define	SIGSTOP		19	/* Stop, unblockable (POSIX).  */ | 
|  | #define	SIGTSTP		20	/* Keyboard stop (POSIX).  */ | 
|  | #define	SIGTTIN		21	/* Background read from tty (POSIX).  */ | 
|  | #define	SIGTTOU		22	/* Background write to tty (POSIX).  */ | 
|  | #define	SIGURG		23	/* Urgent condition on socket (4.2 BSD).  */ | 
|  | #define	SIGXCPU		24	/* CPU limit exceeded (4.2 BSD).  */ | 
|  | #define	SIGXFSZ		25	/* File size limit exceeded (4.2 BSD).  */ | 
|  | #define	SIGVTALRM	26	/* Virtual alarm clock (4.2 BSD).  */ | 
|  | #define	SIGPROF		27	/* Profiling alarm clock (4.2 BSD).  */ | 
|  | #define	SIGWINCH	28	/* Window size change (4.3 BSD, Sun).  */ | 
|  | #define	SIGPOLL		SIGIO	/* Pollable event occurred (System V).  */ | 
|  | #define	SIGIO		29	/* I/O now possible (4.2 BSD).  */ | 
|  | #define	SIGPWR		30	/* Power failure restart (System V).  */ | 
|  | #define SIGSYS		31	/* Bad system call.  */ | 
|  | #define SIGUNUSED	31 | 
|  |  | 
|  | /* _NSIG represents the biggest signal number + 1 (including real-time | 
|  | * signals).  We choose 42 in homage to h2g2, but also to show that it's not a | 
|  | * magic number, like 32 or 64.  It just happens to be the number of rt signals | 
|  | * that we may (probably won't support in the future).  At any rate, this | 
|  | * number must ALWAYS be <= 64 because we are using a long to represent a | 
|  | * sigset.  In Akaros we will likely implment all necessary real-time stuff (if | 
|  | * we need it) using events directly, so this point is moot.  Leaving it at 65 | 
|  | * was problematic though because you can't represent all signals (based 1) in | 
|  | * a single long, adding to weird bugs that we would like to avoid in the | 
|  | * future.  */ | 
|  | #define	_NSIG		42 | 
|  |  | 
|  | /* We leave these arround incase we decide to imlplement them later, but | 
|  | * currently these __libc* functions are not implemented anywhere on akaros. */ | 
|  | #define SIGRTMIN        (__libc_current_sigrtmin ()) | 
|  | #define SIGRTMAX        (__libc_current_sigrtmax ()) | 
|  |  | 
|  | /* These are the hard limits of the kernel.  These values should not be | 
|  | used directly at user level.  */ | 
|  | #define __SIGRTMIN	32 | 
|  | #define __SIGRTMAX	(_NSIG - 1) | 
|  |  | 
|  | #endif	/* <signal.h> included.  */ |