[deliverable/linux.git] / include / asm-xtensa / signal.h

/*
 * include/asm-xtensa/signal.h
 *
 * Swiped from SH.
 *
 * 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) 2001 - 2005 Tensilica Inc.
 */

#ifndef _XTENSA_SIGNAL_H
#define _XTENSA_SIGNAL_H


#define _NSIG		64
#define _NSIG_BPW	32
#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)

#ifndef __ASSEMBLY__

#include <linux/types.h>

/* Avoid too many header ordering problems.  */
struct siginfo;
typedef unsigned long old_sigset_t;		/* at least 32 bits */
typedef struct {
	unsigned long sig[_NSIG_WORDS];
} sigset_t;

#endif

#define SIGHUP		 1
#define SIGINT		 2
#define SIGQUIT		 3
#define SIGILL		 4
#define SIGTRAP		 5
#define SIGABRT		 6
#define SIGIOT		 6
#define SIGBUS		 7
#define SIGFPE		 8
#define SIGKILL		 9
#define SIGUSR1		10
#define SIGSEGV		11
#define SIGUSR2		12
#define SIGPIPE		13
#define SIGALRM		14
#define SIGTERM		15
#define SIGSTKFLT	16
#define SIGCHLD		17
#define SIGCONT		18
#define SIGSTOP		19
#define SIGTSTP		20
#define SIGTTIN		21
#define SIGTTOU		22
#define SIGURG		23
#define SIGXCPU		24
#define SIGXFSZ		25
#define SIGVTALRM	26
#define SIGPROF		27
#define SIGWINCH	28
#define SIGIO		29
#define SIGPOLL		SIGIO
/* #define SIGLOST		29 */
#define SIGPWR		30
#define SIGSYS		31
#define	SIGUNUSED	31

/* These should not be considered constants from userland.  */
#define SIGRTMIN	32
#define SIGRTMAX	(_NSIG-1)

/*
 * 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_NOCLDSTOP	0x00000001
#define SA_NOCLDWAIT	0x00000002 /* not supported yet */
#define SA_SIGINFO	0x00000004
#define SA_ONSTACK	0x08000000
#define SA_RESTART	0x10000000
#define SA_NODEFER	0x40000000
#define SA_RESETHAND	0x80000000

#define SA_NOMASK	SA_NODEFER
#define SA_ONESHOT	SA_RESETHAND

#define SA_RESTORER	0x04000000

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

#define MINSIGSTKSZ	2048
#define SIGSTKSZ	8192

#ifndef __ASSEMBLY__

#define SIG_BLOCK          0	/* for blocking signals */
#define SIG_UNBLOCK        1	/* for unblocking signals */
#define SIG_SETMASK        2	/* for setting the signal mask */

/* Type of a signal handler.  */
typedef void (*__sighandler_t)(int);

#define SIG_DFL	((__sighandler_t)0)	/* default signal handling */
#define SIG_IGN	((__sighandler_t)1)	/* ignore signal */
#define SIG_ERR	((__sighandler_t)-1)	/* error return from signal */

#ifdef __KERNEL__
struct old_sigaction {
	__sighandler_t sa_handler;
	old_sigset_t sa_mask;
	unsigned long sa_flags;
	void (*sa_restorer)(void);
};

struct sigaction {
	__sighandler_t sa_handler;
	unsigned long sa_flags;
	void (*sa_restorer)(void);
	sigset_t sa_mask;		/* mask last for extensibility */
};

struct k_sigaction {
	struct sigaction sa;
};

#else

/* Here we must cater to libcs that poke about in kernel headers.  */

struct sigaction {
	union {
	  __sighandler_t _sa_handler;
	  void (*_sa_sigaction)(int, struct siginfo *, void *);
	} _u;
	sigset_t sa_mask;
	unsigned long sa_flags;
	void (*sa_restorer)(void);
};

#define sa_handler	_u._sa_handler
#define sa_sigaction	_u._sa_sigaction

#endif /* __KERNEL__ */

typedef struct sigaltstack {
	void *ss_sp;
	int ss_flags;
	size_t ss_size;
} stack_t;

#ifdef __KERNEL__
#include <asm/sigcontext.h>
#define ptrace_signal_deliver(regs, cookie) do { } while (0)

#endif	/* __KERNEL__ */
#endif	/* __ASSEMBLY__ */
#endif	/* _XTENSA_SIGNAL_H */
Commit	Line	Data
9a8fd558 CZ	1	/*
	2	* include/asm-xtensa/signal.h
	3	*
	4	* Swiped from SH.
	5	*
	6	* This file is subject to the terms and conditions of the GNU General Public
	7	* License. See the file "COPYING" in the main directory of this archive
	8	* for more details.
	9	*
	10	* Copyright (C) 2001 - 2005 Tensilica Inc.
	11	*/
	12
	13	#ifndef _XTENSA_SIGNAL_H
	14	#define _XTENSA_SIGNAL_H
	15
	16
	17	#define _NSIG 64
	18	#define _NSIG_BPW 32
	19	#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
	20
	21	#ifndef __ASSEMBLY__
	22
	23	#include <linux/types.h>
	24
	25	/* Avoid too many header ordering problems. */
	26	struct siginfo;
	27	typedef unsigned long old_sigset_t; /* at least 32 bits */
	28	typedef struct {
	29	unsigned long sig[_NSIG_WORDS];
	30	} sigset_t;
	31
	32	#endif
	33
	34	#define SIGHUP 1
	35	#define SIGINT 2
	36	#define SIGQUIT 3
	37	#define SIGILL 4
	38	#define SIGTRAP 5
	39	#define SIGABRT 6
	40	#define SIGIOT 6
	41	#define SIGBUS 7
	42	#define SIGFPE 8
	43	#define SIGKILL 9
	44	#define SIGUSR1 10
	45	#define SIGSEGV 11
	46	#define SIGUSR2 12
	47	#define SIGPIPE 13
	48	#define SIGALRM 14
	49	#define SIGTERM 15
	50	#define SIGSTKFLT 16
	51	#define SIGCHLD 17
	52	#define SIGCONT 18
	53	#define SIGSTOP 19
	54	#define SIGTSTP 20
	55	#define SIGTTIN 21
	56	#define SIGTTOU 22
	57	#define SIGURG 23
	58	#define SIGXCPU 24
	59	#define SIGXFSZ 25
	60	#define SIGVTALRM 26
	61	#define SIGPROF 27
	62	#define SIGWINCH 28
	63	#define SIGIO 29
	64	#define SIGPOLL SIGIO
65	/* #define SIGLOST 29 */
66	#define SIGPWR 30
67	#define SIGSYS 31
68	#define SIGUNUSED 31
69
70	/* These should not be considered constants from userland. */
71	#define SIGRTMIN 32
72	#define SIGRTMAX (_NSIG-1)
73
74	/*
75	* SA_FLAGS values:
76	*
77	* SA_ONSTACK indicates that a registered stack_t will be used.
9a8fd558 CZ	78	* SA_RESTART flag to get restarting signals (which were the default long ago)
	79	* SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
	80	* SA_RESETHAND clears the handler when the signal is delivered.
	81	* SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
	82	* SA_NODEFER prevents the current signal from being masked in the handler.
	83	*
	84	* SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
	85	* Unix names RESETHAND and NODEFER respectively.
	86	*/
	87	#define SA_NOCLDSTOP 0x00000001
	88	#define SA_NOCLDWAIT 0x00000002 /* not supported yet */
	89	#define SA_SIGINFO 0x00000004
	90	#define SA_ONSTACK 0x08000000
	91	#define SA_RESTART 0x10000000
	92	#define SA_NODEFER 0x40000000
	93	#define SA_RESETHAND 0x80000000
	94
	95	#define SA_NOMASK SA_NODEFER
	96	#define SA_ONESHOT SA_RESETHAND
9a8fd558 CZ	97
	98	#define SA_RESTORER 0x04000000
	99
	100	/*
	101	* sigaltstack controls
	102	*/
	103	#define SS_ONSTACK 1
	104	#define SS_DISABLE 2
	105
	106	#define MINSIGSTKSZ 2048
	107	#define SIGSTKSZ 8192
	108
	109	#ifndef __ASSEMBLY__
9a8fd558 CZ	110
	111	#define SIG_BLOCK 0 /* for blocking signals */
	112	#define SIG_UNBLOCK 1 /* for unblocking signals */
	113	#define SIG_SETMASK 2 /* for setting the signal mask */
	114
	115	/* Type of a signal handler. */
	116	typedef void (*__sighandler_t)(int);
	117
	118	#define SIG_DFL ((__sighandler_t)0) /* default signal handling */
	119	#define SIG_IGN ((__sighandler_t)1) /* ignore signal */
	120	#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */
	121
	122	#ifdef __KERNEL__
	123	struct old_sigaction {
	124	__sighandler_t sa_handler;
	125	old_sigset_t sa_mask;
	126	unsigned long sa_flags;
	127	void (*sa_restorer)(void);
	128	};
	129
	130	struct sigaction {
	131	__sighandler_t sa_handler;
	132	unsigned long sa_flags;
	133	void (*sa_restorer)(void);
	134	sigset_t sa_mask; /* mask last for extensibility */
	135	};
	136
	137	struct k_sigaction {
	138	struct sigaction sa;
	139	};
	140
	141	#else
	142
	143	/* Here we must cater to libcs that poke about in kernel headers. */
	144
	145	struct sigaction {
	146	union {
	147	__sighandler_t _sa_handler;
	148	void (_sa_sigaction)(int, struct siginfo , void *);
	149	} _u;
	150	sigset_t sa_mask;
	151	unsigned long sa_flags;
	152	void (*sa_restorer)(void);
	153	};
	154
	155	#define sa_handler _u._sa_handler
	156	#define sa_sigaction _u._sa_sigaction
	157
	158	#endif /* __KERNEL__ */
	159
	160	typedef struct sigaltstack {
	161	void *ss_sp;
	162	int ss_flags;
	163	size_t ss_size;
	164	} stack_t;
	165
	166	#ifdef __KERNEL__
	167	#include <asm/sigcontext.h>
	168	#define ptrace_signal_deliver(regs, cookie) do { } while (0)
	169
	170	#endif /* __KERNEL__ */
	171	#endif /* __ASSEMBLY__ */
	172	#endif /* _XTENSA_SIGNAL_H */