[deliverable/linux.git] / arch / mips / include / asm / signal.h

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1995, 96, 97, 98, 99, 2003 by Ralf Baechle
 * Copyright (C) 1999 Silicon Graphics, Inc.
 */
#ifndef _ASM_SIGNAL_H
#define _ASM_SIGNAL_H

#include <linux/types.h>

#define _NSIG		128
#define _NSIG_BPW	(sizeof(unsigned long) * 8)
#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)

typedef struct {
	unsigned long sig[_NSIG_WORDS];
} sigset_t;

typedef unsigned long old_sigset_t;		/* at least 32 bits */

#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 SIGIOT		 6	/* IOT trap (4.2 BSD).  */
#define SIGABRT		 SIGIOT	/* Abort (ANSI).  */
#define SIGEMT		 7
#define SIGFPE		 8	/* Floating-point exception (ANSI).  */
#define SIGKILL		 9	/* Kill, unblockable (POSIX).  */
#define SIGBUS		10	/* BUS error (4.2 BSD).  */
#define SIGSEGV		11	/* Segmentation violation (ANSI).  */
#define SIGSYS		12
#define SIGPIPE		13	/* Broken pipe (POSIX).  */
#define SIGALRM		14	/* Alarm clock (POSIX).  */
#define SIGTERM		15	/* Termination (ANSI).  */
#define SIGUSR1		16	/* User-defined signal 1 (POSIX).  */
#define SIGUSR2		17	/* User-defined signal 2 (POSIX).  */
#define SIGCHLD		18	/* Child status has changed (POSIX).  */
#define SIGCLD		SIGCHLD	/* Same as SIGCHLD (System V).  */
#define SIGPWR		19	/* Power failure restart (System V).  */
#define SIGWINCH	20	/* Window size change (4.3 BSD, Sun).  */
#define SIGURG		21	/* Urgent condition on socket (4.2 BSD).  */
#define SIGIO		22	/* I/O now possible (4.2 BSD).  */
#define SIGPOLL		SIGIO	/* Pollable event occurred (System V).  */
#define SIGSTOP		23	/* Stop, unblockable (POSIX).  */
#define SIGTSTP		24	/* Keyboard stop (POSIX).  */
#define SIGCONT		25	/* Continue (POSIX).  */
#define SIGTTIN		26	/* Background read from tty (POSIX).  */
#define SIGTTOU		27	/* Background write to tty (POSIX).  */
#define SIGVTALRM	28	/* Virtual alarm clock (4.2 BSD).  */
#define SIGPROF		29	/* Profiling alarm clock (4.2 BSD).  */
#define SIGXCPU		30	/* CPU limit exceeded (4.2 BSD).  */
#define SIGXFSZ		31	/* File size limit exceeded (4.2 BSD).  */

/* These should not be considered constants from userland.  */
#define SIGRTMIN	32
#define SIGRTMAX	_NSIG

/*
 * SA_FLAGS values:
 *
 * SA_ONSTACK indicates that a registered stack_t will be used.
 * SA_RESTART flag to get restarting signals (which were the default long ago)
 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
 * SA_RESETHAND clears the handler when the signal is delivered.
 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
 * SA_NODEFER prevents the current signal from being masked in the handler.
 *
 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
 * Unix names RESETHAND and NODEFER respectively.
 */
#define SA_ONSTACK	0x08000000
#define SA_RESETHAND	0x80000000
#define SA_RESTART	0x10000000
#define SA_SIGINFO	0x00000008
#define SA_NODEFER	0x40000000
#define SA_NOCLDWAIT	0x00010000
#define SA_NOCLDSTOP	0x00000001

#define SA_NOMASK	SA_NODEFER
#define SA_ONESHOT	SA_RESETHAND

#define SA_RESTORER	0x04000000	/* Only for o32 */

/*
 * sigaltstack controls
 */
#define SS_ONSTACK     1
#define SS_DISABLE     2

#define MINSIGSTKSZ    2048
#define SIGSTKSZ       8192

#ifdef __KERNEL__

#ifdef CONFIG_TRAD_SIGNALS
#define sig_uses_siginfo(ka)	((ka)->sa.sa_flags & SA_SIGINFO)
#else
#define sig_uses_siginfo(ka)	(1)
#endif

#endif /* __KERNEL__ */

#define SIG_BLOCK	1	/* for blocking signals */
#define SIG_UNBLOCK	2	/* for unblocking signals */
#define SIG_SETMASK	3	/* for setting the signal mask */

#include <asm-generic/signal.h>

struct sigaction {
	unsigned int	sa_flags;
	__sighandler_t	sa_handler;
	sigset_t	sa_mask;
};

struct k_sigaction {
	struct sigaction sa;
};

/* IRIX compatible stack_t  */
typedef struct sigaltstack {
	void __user *ss_sp;
	size_t ss_size;
	int ss_flags;
} stack_t;

#ifdef __KERNEL__
#include <asm/sigcontext.h>
#include <asm/siginfo.h>

#define ptrace_signal_deliver(regs, cookie) do { } while (0)

#endif /* __KERNEL__ */

#endif /* _ASM_SIGNAL_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* This file is subject to the terms and conditions of the GNU General Public
	3	* License. See the file "COPYING" in the main directory of this archive
	4	* for more details.
	5	*
	6	* Copyright (C) 1995, 96, 97, 98, 99, 2003 by Ralf Baechle
	7	* Copyright (C) 1999 Silicon Graphics, Inc.
	8	*/
	9	#ifndef _ASM_SIGNAL_H
	10	#define _ASM_SIGNAL_H
	11
1da177e4 LT	12	#include <linux/types.h>
	13
	14	#define _NSIG 128
	15	#define _NSIG_BPW (sizeof(unsigned long) * 8)
	16	#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
	17
	18	typedef struct {
	19	unsigned long sig[_NSIG_WORDS];
	20	} sigset_t;
	21
	22	typedef unsigned long old_sigset_t; /* at least 32 bits */
	23
	24	#define SIGHUP 1 /* Hangup (POSIX). */
	25	#define SIGINT 2 /* Interrupt (ANSI). */
	26	#define SIGQUIT 3 /* Quit (POSIX). */
	27	#define SIGILL 4 /* Illegal instruction (ANSI). */
	28	#define SIGTRAP 5 /* Trace trap (POSIX). */
	29	#define SIGIOT 6 /* IOT trap (4.2 BSD). */
	30	#define SIGABRT SIGIOT /* Abort (ANSI). */
	31	#define SIGEMT 7
	32	#define SIGFPE 8 /* Floating-point exception (ANSI). */
	33	#define SIGKILL 9 /* Kill, unblockable (POSIX). */
	34	#define SIGBUS 10 /* BUS error (4.2 BSD). */
	35	#define SIGSEGV 11 /* Segmentation violation (ANSI). */
	36	#define SIGSYS 12
	37	#define SIGPIPE 13 /* Broken pipe (POSIX). */
	38	#define SIGALRM 14 /* Alarm clock (POSIX). */
	39	#define SIGTERM 15 /* Termination (ANSI). */
	40	#define SIGUSR1 16 /* User-defined signal 1 (POSIX). */
	41	#define SIGUSR2 17 /* User-defined signal 2 (POSIX). */
	42	#define SIGCHLD 18 /* Child status has changed (POSIX). */
	43	#define SIGCLD SIGCHLD /* Same as SIGCHLD (System V). */
	44	#define SIGPWR 19 /* Power failure restart (System V). */
	45	#define SIGWINCH 20 /* Window size change (4.3 BSD, Sun). */
	46	#define SIGURG 21 /* Urgent condition on socket (4.2 BSD). */
	47	#define SIGIO 22 /* I/O now possible (4.2 BSD). */
	48	#define SIGPOLL SIGIO /* Pollable event occurred (System V). */
	49	#define SIGSTOP 23 /* Stop, unblockable (POSIX). */
	50	#define SIGTSTP 24 /* Keyboard stop (POSIX). */
	51	#define SIGCONT 25 /* Continue (POSIX). */
	52	#define SIGTTIN 26 /* Background read from tty (POSIX). */
	53	#define SIGTTOU 27 /* Background write to tty (POSIX). */
	54	#define SIGVTALRM 28 /* Virtual alarm clock (4.2 BSD). */
	55	#define SIGPROF 29 /* Profiling alarm clock (4.2 BSD). */
	56	#define SIGXCPU 30 /* CPU limit exceeded (4.2 BSD). */
	57	#define SIGXFSZ 31 /* File size limit exceeded (4.2 BSD). */
	58
	59	/* These should not be considered constants from userland. */
	60	#define SIGRTMIN 32
	61	#define SIGRTMAX _NSIG
	62
	63	/*
	64	* SA_FLAGS values:
	65	*
	66	* SA_ONSTACK indicates that a registered stack_t will be used.
1da177e4 LT	67	* SA_RESTART flag to get restarting signals (which were the default long ago)
	68	* SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
	69	* SA_RESETHAND clears the handler when the signal is delivered.
	70	* SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
	71	* SA_NODEFER prevents the current signal from being masked in the handler.
	72	*
	73	* SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
	74	* Unix names RESETHAND and NODEFER respectively.
	75	*/
	76	#define SA_ONSTACK 0x08000000
	77	#define SA_RESETHAND 0x80000000
	78	#define SA_RESTART 0x10000000
	79	#define SA_SIGINFO 0x00000008
	80	#define SA_NODEFER 0x40000000
	81	#define SA_NOCLDWAIT 0x00010000
	82	#define SA_NOCLDSTOP 0x00000001
	83
	84	#define SA_NOMASK SA_NODEFER
	85	#define SA_ONESHOT SA_RESETHAND
1da177e4 LT	86
	87	#define SA_RESTORER 0x04000000 /* Only for o32 */
	88
	89	/*
	90	* sigaltstack controls
	91	*/
	92	#define SS_ONSTACK 1
	93	#define SS_DISABLE 2
	94
	95	#define MINSIGSTKSZ 2048
	96	#define SIGSTKSZ 8192
	97
e50c0a8f RB	98	#ifdef __KERNEL__
e50c0a8f RB	99
e50c0a8f RB	100	#ifdef CONFIG_TRAD_SIGNALS
	101	#define sig_uses_siginfo(ka) ((ka)->sa.sa_flags & SA_SIGINFO)
	102	#else
	103	#define sig_uses_siginfo(ka) (1)
	104	#endif
	105
	106	#endif /* __KERNEL__ */
	107
1da177e4 LT	108	#define SIG_BLOCK 1 /* for blocking signals */
	109	#define SIG_UNBLOCK 2 /* for unblocking signals */
	110	#define SIG_SETMASK 3 /* for setting the signal mask */
e50c0a8f	111
6b3e5f44	112	#include <asm-generic/signal.h>
1da177e4 LT	113
	114	struct sigaction {
	115	unsigned int sa_flags;
	116	__sighandler_t sa_handler;
	117	sigset_t sa_mask;
	118	};
	119
	120	struct k_sigaction {
	121	struct sigaction sa;
1da177e4 LT	122	};
	123
	124	/* IRIX compatible stack_t */
	125	typedef struct sigaltstack {
9c6031cc	126	void __user *ss_sp;
1da177e4 LT	127	size_t ss_size;
	128	int ss_flags;
	129	} stack_t;
	130
	131	#ifdef __KERNEL__
	132	#include <asm/sigcontext.h>
9c6031cc	133	#include <asm/siginfo.h>
1da177e4	134
1da177e4 LT	135	#define ptrace_signal_deliver(regs, cookie) do { } while (0)
	136
	137	#endif /* __KERNEL__ */
	138
	139	#endif /* _ASM_SIGNAL_H */