[linux.git] / include / asm-m68k / signal.h

#ifndef _M68K_SIGNAL_H
#define _M68K_SIGNAL_H

#include <linux/types.h>

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

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

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

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

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

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

#define NSIG		32
typedef unsigned long sigset_t;

#endif /* __KERNEL__ */

#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

/*
 * 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

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

#define MINSIGSTKSZ	2048
#define SIGSTKSZ	8192

#include <asm-generic/signal.h>

#ifdef __KERNEL__
struct old_sigaction {
	__sighandler_t sa_handler;
	old_sigset_t sa_mask;
	unsigned long sa_flags;
	__sigrestore_t sa_restorer;
};

struct sigaction {
	__sighandler_t sa_handler;
	unsigned long sa_flags;
	__sigrestore_t sa_restorer;
	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 __user *ss_sp;
	int ss_flags;
	size_t ss_size;
} stack_t;

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

#define __HAVE_ARCH_SIG_BITOPS

static inline void sigaddset(sigset_t *set, int _sig)
{
	asm ("bfset %0{%1,#1}"
		: "+od" (*set)
		: "id" ((_sig - 1) ^ 31)
		: "cc");
}

static inline void sigdelset(sigset_t *set, int _sig)
{
	asm ("bfclr %0{%1,#1}"
		: "+od" (*set)
		: "id" ((_sig - 1) ^ 31)
		: "cc");
}

static inline int __const_sigismember(sigset_t *set, int _sig)
{
	unsigned long sig = _sig - 1;
	return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
}

static inline int __gen_sigismember(sigset_t *set, int _sig)
{
	int ret;
	asm ("bfextu %1{%2,#1},%0"
		: "=d" (ret)
		: "od" (*set), "id" ((_sig-1) ^ 31)
		: "cc");
	return ret;
}

#define sigismember(set,sig)			\
	(__builtin_constant_p(sig) ?		\
	 __const_sigismember(set,sig) :		\
	 __gen_sigismember(set,sig))

static inline int sigfindinword(unsigned long word)
{
	asm ("bfffo %1{#0,#0},%0"
		: "=d" (word)
		: "d" (word & -word)
		: "cc");
	return word ^ 31;
}

struct pt_regs;
extern void ptrace_signal_deliver(struct pt_regs *regs, void *cookie);

#endif /* __KERNEL__ */

#endif /* _M68K_SIGNAL_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _M68K_SIGNAL_H
	2	#define _M68K_SIGNAL_H
	3
	4	#include <linux/types.h>
	5
	6	/* Avoid too many header ordering problems. */
	7	struct siginfo;
	8
	9	#ifdef __KERNEL__
	10	/* Most things should be clean enough to redefine this at will, if care
	11	is taken to make libc match. */
	12
	13	#define _NSIG 64
	14	#define _NSIG_BPW 32
	15	#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
	16
	17	typedef unsigned long old_sigset_t; /* at least 32 bits */
	18
	19	typedef struct {
	20	unsigned long sig[_NSIG_WORDS];
	21	} sigset_t;
	22
	23	#else
	24	/* Here we must cater to libcs that poke about in kernel headers. */
	25
	26	#define NSIG 32
	27	typedef unsigned long sigset_t;
	28
	29	#endif /* __KERNEL__ */
	30
	31	#define SIGHUP 1
	32	#define SIGINT 2
	33	#define SIGQUIT 3
	34	#define SIGILL 4
	35	#define SIGTRAP 5
	36	#define SIGABRT 6
	37	#define SIGIOT 6
	38	#define SIGBUS 7
	39	#define SIGFPE 8
	40	#define SIGKILL 9
	41	#define SIGUSR1 10
	42	#define SIGSEGV 11
	43	#define SIGUSR2 12
	44	#define SIGPIPE 13
	45	#define SIGALRM 14
	46	#define SIGTERM 15
	47	#define SIGSTKFLT 16
	48	#define SIGCHLD 17
	49	#define SIGCONT 18
	50	#define SIGSTOP 19
	51	#define SIGTSTP 20
	52	#define SIGTTIN 21
	53	#define SIGTTOU 22
	54	#define SIGURG 23
	55	#define SIGXCPU 24
	56	#define SIGXFSZ 25
	57	#define SIGVTALRM 26
	58	#define SIGPROF 27
	59	#define SIGWINCH 28
	60	#define SIGIO 29
	61	#define SIGPOLL SIGIO
	62	/*
	63	#define SIGLOST 29
	64	*/
65	#define SIGPWR 30
66	#define SIGSYS 31
67	#define SIGUNUSED 31
68
69	/* These should not be considered constants from userland. */
70	#define SIGRTMIN 32
71	#define SIGRTMAX _NSIG
72
73	/*
74	* SA_FLAGS values:
75	*
76	* SA_ONSTACK indicates that a registered stack_t will be used.
1da177e4 LT	77	* SA_RESTART flag to get restarting signals (which were the default long ago)
	78	* SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
	79	* SA_RESETHAND clears the handler when the signal is delivered.
	80	* SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
	81	* SA_NODEFER prevents the current signal from being masked in the handler.
	82	*
	83	* SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
	84	* Unix names RESETHAND and NODEFER respectively.
	85	*/
	86	#define SA_NOCLDSTOP 0x00000001
	87	#define SA_NOCLDWAIT 0x00000002
	88	#define SA_SIGINFO 0x00000004
	89	#define SA_ONSTACK 0x08000000
	90	#define SA_RESTART 0x10000000
	91	#define SA_NODEFER 0x40000000
	92	#define SA_RESETHAND 0x80000000
	93
	94	#define SA_NOMASK SA_NODEFER
	95	#define SA_ONESHOT SA_RESETHAND
1da177e4 LT	96
	97	/*
	98	* sigaltstack controls
	99	*/
	100	#define SS_ONSTACK 1
	101	#define SS_DISABLE 2
	102
	103	#define MINSIGSTKSZ 2048
	104	#define SIGSTKSZ 8192
	105
b1ecb4c3	106	#include <asm-generic/signal.h>
1da177e4 LT	107
	108	#ifdef __KERNEL__
	109	struct old_sigaction {
	110	__sighandler_t sa_handler;
	111	old_sigset_t sa_mask;
	112	unsigned long sa_flags;
b1ecb4c3	113	__sigrestore_t sa_restorer;
1da177e4 LT	114	};
	115
	116	struct sigaction {
	117	__sighandler_t sa_handler;
	118	unsigned long sa_flags;
b1ecb4c3	119	__sigrestore_t sa_restorer;
1da177e4 LT	120	sigset_t sa_mask; /* mask last for extensibility */
	121	};
	122
	123	struct k_sigaction {
	124	struct sigaction sa;
	125	};
	126	#else
	127	/* Here we must cater to libcs that poke about in kernel headers. */
	128
	129	struct sigaction {
	130	union {
	131	__sighandler_t _sa_handler;
	132	void (_sa_sigaction)(int, struct siginfo , void *);
	133	} _u;
	134	sigset_t sa_mask;
	135	unsigned long sa_flags;
	136	void (*sa_restorer)(void);
	137	};
	138
	139	#define sa_handler _u._sa_handler
	140	#define sa_sigaction _u._sa_sigaction
	141
	142	#endif /* __KERNEL__ */
	143
	144	typedef struct sigaltstack {
2382f77f	145	void __user *ss_sp;
1da177e4 LT	146	int ss_flags;
	147	size_t ss_size;
	148	} stack_t;
	149
	150	#ifdef __KERNEL__
	151	#include <asm/sigcontext.h>
	152
	153	#define __HAVE_ARCH_SIG_BITOPS
	154
	155	static inline void sigaddset(sigset_t *set, int _sig)
	156	{
6bf9f755 RZ	157	asm ("bfset %0{%1,#1}"
	158	: "+od" (*set)
	159	: "id" ((_sig - 1) ^ 31)
1da177e4 LT	160	: "cc");
	161	}
	162
	163	static inline void sigdelset(sigset_t *set, int _sig)
	164	{
6bf9f755 RZ	165	asm ("bfclr %0{%1,#1}"
	166	: "+od" (*set)
	167	: "id" ((_sig - 1) ^ 31)
1da177e4 LT	168	: "cc");
	169	}
	170
	171	static inline int __const_sigismember(sigset_t *set, int _sig)
	172	{
	173	unsigned long sig = _sig - 1;
	174	return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
	175	}
	176
	177	static inline int __gen_sigismember(sigset_t *set, int _sig)
	178	{
	179	int ret;
6bf9f755 RZ	180	asm ("bfextu %1{%2,#1},%0"
	181	: "=d" (ret)
	182	: "od" (*set), "id" ((_sig-1) ^ 31)
	183	: "cc");
1da177e4 LT	184	return ret;
	185	}
	186
	187	#define sigismember(set,sig) \
	188	(__builtin_constant_p(sig) ? \
	189	__const_sigismember(set,sig) : \
	190	__gen_sigismember(set,sig))
	191
	192	static inline int sigfindinword(unsigned long word)
	193	{
6bf9f755 RZ	194	asm ("bfffo %1{#0,#0},%0"
	195	: "=d" (word)
	196	: "d" (word & -word)
	197	: "cc");
1da177e4 LT	198	return word ^ 31;
	199	}
	200
9288d1a3	201	struct pt_regs;
1da177e4 LT	202	extern void ptrace_signal_deliver(struct pt_regs regs, void cookie);
	203
	204	#endif /* __KERNEL__ */
	205
	206	#endif /* _M68K_SIGNAL_H */