[linux-block.git] / include / asm-ia64 / signal.h

#ifndef _ASM_IA64_SIGNAL_H
#define _ASM_IA64_SIGNAL_H

/*
 * Modified 1998-2001, 2003
 *	David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
 *
 * Unfortunately, this file is being included by bits/signal.h in
 * glibc-2.x.  Hence the #ifdef __KERNEL__ ugliness.
 */

#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
/* signal 31 is no longer "unused", but the SIGUNUSED macro remains for backwards compatibility */
#define	SIGUNUSED	31

/* 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_NOCLDSTOP	0x00000001
#define SA_NOCLDWAIT	0x00000002
#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

/*
 * The minimum stack size needs to be fairly large because we want to
 * be sure that an app compiled for today's CPUs will continue to run
 * on all future CPU models.  The CPU model matters because the signal
 * frame needs to have space for the complete machine state, including
 * all physical stacked registers.  The number of physical stacked
 * registers is CPU model dependent, but given that the width of
 * ar.rsc.loadrs is 14 bits, we can assume that they'll never take up
 * more than 16KB of space.
 */
#if 1
  /*
   * This is a stupid typo: the value was _meant_ to be 131072 (0x20000), but I typed it
   * in wrong. ;-(  To preserve backwards compatibility, we leave the kernel at the
   * incorrect value and fix libc only.
   */
# define MINSIGSTKSZ	131027	/* min. stack size for sigaltstack() */
#else
# define MINSIGSTKSZ	131072	/* min. stack size for sigaltstack() */
#endif
#define SIGSTKSZ	262144	/* default stack size for sigaltstack() */

#ifdef __KERNEL__

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

#endif /* __KERNEL__ */

#include <asm-generic/signal.h>

# ifndef __ASSEMBLY__

#  include <linux/types.h>

/* Avoid too many header ordering problems.  */
struct siginfo;

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

#ifdef __KERNEL__

/* Most things should be clean enough to redefine this at will, if care
   is taken to make libc match.  */

typedef unsigned long old_sigset_t;

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

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

struct k_sigaction {
	struct sigaction sa;
};

#  include <asm/sigcontext.h>

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

#endif /* __KERNEL__ */

# endif /* !__ASSEMBLY__ */
#endif /* _ASM_IA64_SIGNAL_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASM_IA64_SIGNAL_H
	2	#define _ASM_IA64_SIGNAL_H
	3
	4	/*
	5	* Modified 1998-2001, 2003
	6	* David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
	7	*
	8	* Unfortunately, this file is being included by bits/signal.h in
	9	* glibc-2.x. Hence the #ifdef __KERNEL__ ugliness.
	10	*/
	11
	12	#define SIGHUP 1
	13	#define SIGINT 2
	14	#define SIGQUIT 3
	15	#define SIGILL 4
	16	#define SIGTRAP 5
	17	#define SIGABRT 6
	18	#define SIGIOT 6
	19	#define SIGBUS 7
	20	#define SIGFPE 8
	21	#define SIGKILL 9
	22	#define SIGUSR1 10
	23	#define SIGSEGV 11
	24	#define SIGUSR2 12
	25	#define SIGPIPE 13
	26	#define SIGALRM 14
	27	#define SIGTERM 15
	28	#define SIGSTKFLT 16
	29	#define SIGCHLD 17
	30	#define SIGCONT 18
	31	#define SIGSTOP 19
	32	#define SIGTSTP 20
	33	#define SIGTTIN 21
	34	#define SIGTTOU 22
	35	#define SIGURG 23
	36	#define SIGXCPU 24
	37	#define SIGXFSZ 25
	38	#define SIGVTALRM 26
	39	#define SIGPROF 27
	40	#define SIGWINCH 28
	41	#define SIGIO 29
	42	#define SIGPOLL SIGIO
	43	/*
	44	#define SIGLOST 29
	45	*/
	46	#define SIGPWR 30
	47	#define SIGSYS 31
	48	/* signal 31 is no longer "unused", but the SIGUNUSED macro remains for backwards compatibility */
	49	#define SIGUNUSED 31
	50
	51	/* These should not be considered constants from userland. */
	52	#define SIGRTMIN 32
	53	#define SIGRTMAX _NSIG
	54
	55	/*
	56	* SA_FLAGS values:
	57	*
	58	* SA_ONSTACK indicates that a registered stack_t will be used.
1da177e4 LT	59	* SA_RESTART flag to get restarting signals (which were the default long ago)
	60	* SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
	61	* SA_RESETHAND clears the handler when the signal is delivered.
	62	* SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
	63	* SA_NODEFER prevents the current signal from being masked in the handler.
	64	*
	65	* SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
	66	* Unix names RESETHAND and NODEFER respectively.
	67	*/
	68	#define SA_NOCLDSTOP 0x00000001
	69	#define SA_NOCLDWAIT 0x00000002
	70	#define SA_SIGINFO 0x00000004
	71	#define SA_ONSTACK 0x08000000
	72	#define SA_RESTART 0x10000000
	73	#define SA_NODEFER 0x40000000
	74	#define SA_RESETHAND 0x80000000
	75
	76	#define SA_NOMASK SA_NODEFER
	77	#define SA_ONESHOT SA_RESETHAND
1da177e4 LT	78
	79	#define SA_RESTORER 0x04000000
	80
	81	/*
	82	* sigaltstack controls
	83	*/
	84	#define SS_ONSTACK 1
	85	#define SS_DISABLE 2
	86
	87	/*
	88	* The minimum stack size needs to be fairly large because we want to
	89	* be sure that an app compiled for today's CPUs will continue to run
	90	* on all future CPU models. The CPU model matters because the signal
	91	* frame needs to have space for the complete machine state, including
	92	* all physical stacked registers. The number of physical stacked
	93	* registers is CPU model dependent, but given that the width of
	94	* ar.rsc.loadrs is 14 bits, we can assume that they'll never take up
	95	* more than 16KB of space.
	96	*/
	97	#if 1
	98	/*
	99	* This is a stupid typo: the value was _meant_ to be 131072 (0x20000), but I typed it
	100	* in wrong. ;-( To preserve backwards compatibility, we leave the kernel at the
	101	* incorrect value and fix libc only.
	102	*/
	103	# define MINSIGSTKSZ 131027 /* min. stack size for sigaltstack() */
	104	#else
	105	# define MINSIGSTKSZ 131072 /* min. stack size for sigaltstack() */
	106	#endif
	107	#define SIGSTKSZ 262144 /* default stack size for sigaltstack() */
	108
	109	#ifdef __KERNEL__
	110
	111	#define _NSIG 64
	112	#define _NSIG_BPW 64
	113	#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
	114
1da177e4 LT	115	#endif /* __KERNEL__ */
1da177e4 LT	116
b1ecb4c3	117	#include <asm-generic/signal.h>
1da177e4 LT	118
	119	# ifndef __ASSEMBLY__
	120
	121	# include <linux/types.h>
	122
	123	/* Avoid too many header ordering problems. */
	124	struct siginfo;
	125
1da177e4 LT	126	typedef struct sigaltstack {
	127	void __user *ss_sp;
	128	int ss_flags;
	129	size_t ss_size;
	130	} stack_t;
	131
	132	#ifdef __KERNEL__
	133
	134	/* Most things should be clean enough to redefine this at will, if care
	135	is taken to make libc match. */
	136
	137	typedef unsigned long old_sigset_t;
	138
	139	typedef struct {
	140	unsigned long sig[_NSIG_WORDS];
	141	} sigset_t;
	142
	143	struct sigaction {
	144	__sighandler_t sa_handler;
	145	unsigned long sa_flags;
	146	sigset_t sa_mask; /* mask last for extensibility */
	147	};
	148
	149	struct k_sigaction {
	150	struct sigaction sa;
	151	};
	152
	153	# include <asm/sigcontext.h>
	154
	155	#define ptrace_signal_deliver(regs, cookie) do { } while (0)
	156
1da177e4 LT	157	#endif /* __KERNEL__ */
	158
	159	# endif /* !__ASSEMBLY__ */
	160	#endif /* _ASM_IA64_SIGNAL_H */