[mirror_ubuntu-zesty-kernel.git] / include / asm-generic / siginfo.h

#ifndef _ASM_GENERIC_SIGINFO_H
#define _ASM_GENERIC_SIGINFO_H

#include <linux/compiler.h>
#include <linux/types.h>

typedef union sigval {
	int sival_int;
	void __user *sival_ptr;
} sigval_t;

/*
 * This is the size (including padding) of the part of the
 * struct siginfo that is before the union.
 */
#ifndef __ARCH_SI_PREAMBLE_SIZE
#define __ARCH_SI_PREAMBLE_SIZE	(3 * sizeof(int))
#endif

#define SI_MAX_SIZE	128
#ifndef SI_PAD_SIZE
#define SI_PAD_SIZE	((SI_MAX_SIZE - __ARCH_SI_PREAMBLE_SIZE) / sizeof(int))
#endif

#ifndef __ARCH_SI_UID_T
#define __ARCH_SI_UID_T	__kernel_uid32_t
#endif

/*
 * The default "si_band" type is "long", as specified by POSIX.
 * However, some architectures want to override this to "int"
 * for historical compatibility reasons, so we allow that.
 */
#ifndef __ARCH_SI_BAND_T
#define __ARCH_SI_BAND_T long
#endif

#ifndef HAVE_ARCH_SIGINFO_T

typedef struct siginfo {
	int si_signo;
	int si_errno;
	int si_code;

	union {
		int _pad[SI_PAD_SIZE];

		/* kill() */
		struct {
			__kernel_pid_t _pid;	/* sender's pid */
			__ARCH_SI_UID_T _uid;	/* sender's uid */
		} _kill;

		/* POSIX.1b timers */
		struct {
			__kernel_timer_t _tid;	/* timer id */
			int _overrun;		/* overrun count */
			char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
			sigval_t _sigval;	/* same as below */
			int _sys_private;       /* not to be passed to user */
		} _timer;

		/* POSIX.1b signals */
		struct {
			__kernel_pid_t _pid;	/* sender's pid */
			__ARCH_SI_UID_T _uid;	/* sender's uid */
			sigval_t _sigval;
		} _rt;

		/* SIGCHLD */
		struct {
			__kernel_pid_t _pid;	/* which child */
			__ARCH_SI_UID_T _uid;	/* sender's uid */
			int _status;		/* exit code */
			__kernel_clock_t _utime;
			__kernel_clock_t _stime;
		} _sigchld;

		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
		struct {
			void __user *_addr; /* faulting insn/memory ref. */
#ifdef __ARCH_SI_TRAPNO
			int _trapno;	/* TRAP # which caused the signal */
#endif
			short _addr_lsb; /* LSB of the reported address */
		} _sigfault;

		/* SIGPOLL */
		struct {
			__ARCH_SI_BAND_T _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
			int _fd;
		} _sigpoll;
	} _sifields;
} siginfo_t;

#endif

/*
 * How these fields are to be accessed.
 */
#define si_pid		_sifields._kill._pid
#define si_uid		_sifields._kill._uid
#define si_tid		_sifields._timer._tid
#define si_overrun	_sifields._timer._overrun
#define si_sys_private  _sifields._timer._sys_private
#define si_status	_sifields._sigchld._status
#define si_utime	_sifields._sigchld._utime
#define si_stime	_sifields._sigchld._stime
#define si_value	_sifields._rt._sigval
#define si_int		_sifields._rt._sigval.sival_int
#define si_ptr		_sifields._rt._sigval.sival_ptr
#define si_addr		_sifields._sigfault._addr
#ifdef __ARCH_SI_TRAPNO
#define si_trapno	_sifields._sigfault._trapno
#endif
#define si_addr_lsb	_sifields._sigfault._addr_lsb
#define si_band		_sifields._sigpoll._band
#define si_fd		_sifields._sigpoll._fd

#ifdef __KERNEL__
#define __SI_MASK	0xffff0000u
#define __SI_KILL	(0 << 16)
#define __SI_TIMER	(1 << 16)
#define __SI_POLL	(2 << 16)
#define __SI_FAULT	(3 << 16)
#define __SI_CHLD	(4 << 16)
#define __SI_RT		(5 << 16)
#define __SI_MESGQ	(6 << 16)
#define __SI_CODE(T,N)	((T) | ((N) & 0xffff))
#else
#define __SI_KILL	0
#define __SI_TIMER	0
#define __SI_POLL	0
#define __SI_FAULT	0
#define __SI_CHLD	0
#define __SI_RT		0
#define __SI_MESGQ	0
#define __SI_CODE(T,N)	(N)
#endif

/*
 * si_code values
 * Digital reserves positive values for kernel-generated signals.
 */
#define SI_USER		0		/* sent by kill, sigsend, raise */
#define SI_KERNEL	0x80		/* sent by the kernel from somewhere */
#define SI_QUEUE	-1		/* sent by sigqueue */
#define SI_TIMER __SI_CODE(__SI_TIMER,-2) /* sent by timer expiration */
#define SI_MESGQ __SI_CODE(__SI_MESGQ,-3) /* sent by real time mesq state change */
#define SI_ASYNCIO	-4		/* sent by AIO completion */
#define SI_SIGIO	-5		/* sent by queued SIGIO */
#define SI_TKILL	-6		/* sent by tkill system call */
#define SI_DETHREAD	-7		/* sent by execve() killing subsidiary threads */

#define SI_FROMUSER(siptr)	((siptr)->si_code <= 0)
#define SI_FROMKERNEL(siptr)	((siptr)->si_code > 0)

/*
 * SIGILL si_codes
 */
#define ILL_ILLOPC	(__SI_FAULT|1)	/* illegal opcode */
#define ILL_ILLOPN	(__SI_FAULT|2)	/* illegal operand */
#define ILL_ILLADR	(__SI_FAULT|3)	/* illegal addressing mode */
#define ILL_ILLTRP	(__SI_FAULT|4)	/* illegal trap */
#define ILL_PRVOPC	(__SI_FAULT|5)	/* privileged opcode */
#define ILL_PRVREG	(__SI_FAULT|6)	/* privileged register */
#define ILL_COPROC	(__SI_FAULT|7)	/* coprocessor error */
#define ILL_BADSTK	(__SI_FAULT|8)	/* internal stack error */
#define NSIGILL		8

/*
 * SIGFPE si_codes
 */
#define FPE_INTDIV	(__SI_FAULT|1)	/* integer divide by zero */
#define FPE_INTOVF	(__SI_FAULT|2)	/* integer overflow */
#define FPE_FLTDIV	(__SI_FAULT|3)	/* floating point divide by zero */
#define FPE_FLTOVF	(__SI_FAULT|4)	/* floating point overflow */
#define FPE_FLTUND	(__SI_FAULT|5)	/* floating point underflow */
#define FPE_FLTRES	(__SI_FAULT|6)	/* floating point inexact result */
#define FPE_FLTINV	(__SI_FAULT|7)	/* floating point invalid operation */
#define FPE_FLTSUB	(__SI_FAULT|8)	/* subscript out of range */
#define NSIGFPE		8

/*
 * SIGSEGV si_codes
 */
#define SEGV_MAPERR	(__SI_FAULT|1)	/* address not mapped to object */
#define SEGV_ACCERR	(__SI_FAULT|2)	/* invalid permissions for mapped object */
#define NSIGSEGV	2

/*
 * SIGBUS si_codes
 */
#define BUS_ADRALN	(__SI_FAULT|1)	/* invalid address alignment */
#define BUS_ADRERR	(__SI_FAULT|2)	/* non-existent physical address */
#define BUS_OBJERR	(__SI_FAULT|3)	/* object specific hardware error */
/* hardware memory error consumed on a machine check: action required */
#define BUS_MCEERR_AR	(__SI_FAULT|4)
/* hardware memory error detected in process but not consumed: action optional*/
#define BUS_MCEERR_AO	(__SI_FAULT|5)
#define NSIGBUS		5

/*
 * SIGTRAP si_codes
 */
#define TRAP_BRKPT	(__SI_FAULT|1)	/* process breakpoint */
#define TRAP_TRACE	(__SI_FAULT|2)	/* process trace trap */
#define TRAP_BRANCH     (__SI_FAULT|3)  /* process taken branch trap */
#define TRAP_HWBKPT     (__SI_FAULT|4)  /* hardware breakpoint/watchpoint */
#define NSIGTRAP	4

/*
 * SIGCHLD si_codes
 */
#define CLD_EXITED	(__SI_CHLD|1)	/* child has exited */
#define CLD_KILLED	(__SI_CHLD|2)	/* child was killed */
#define CLD_DUMPED	(__SI_CHLD|3)	/* child terminated abnormally */
#define CLD_TRAPPED	(__SI_CHLD|4)	/* traced child has trapped */
#define CLD_STOPPED	(__SI_CHLD|5)	/* child has stopped */
#define CLD_CONTINUED	(__SI_CHLD|6)	/* stopped child has continued */
#define NSIGCHLD	6

/*
 * SIGPOLL si_codes
 */
#define POLL_IN		(__SI_POLL|1)	/* data input available */
#define POLL_OUT	(__SI_POLL|2)	/* output buffers available */
#define POLL_MSG	(__SI_POLL|3)	/* input message available */
#define POLL_ERR	(__SI_POLL|4)	/* i/o error */
#define POLL_PRI	(__SI_POLL|5)	/* high priority input available */
#define POLL_HUP	(__SI_POLL|6)	/* device disconnected */
#define NSIGPOLL	6

/*
 * sigevent definitions
 * 
 * It seems likely that SIGEV_THREAD will have to be handled from 
 * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
 * thread manager then catches and does the appropriate nonsense.
 * However, everything is written out here so as to not get lost.
 */
#define SIGEV_SIGNAL	0	/* notify via signal */
#define SIGEV_NONE	1	/* other notification: meaningless */
#define SIGEV_THREAD	2	/* deliver via thread creation */
#define SIGEV_THREAD_ID 4	/* deliver to thread */

/*
 * This works because the alignment is ok on all current architectures
 * but we leave open this being overridden in the future
 */
#ifndef __ARCH_SIGEV_PREAMBLE_SIZE
#define __ARCH_SIGEV_PREAMBLE_SIZE	(sizeof(int) * 2 + sizeof(sigval_t))
#endif

#define SIGEV_MAX_SIZE	64
#define SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \
		/ sizeof(int))

typedef struct sigevent {
	sigval_t sigev_value;
	int sigev_signo;
	int sigev_notify;
	union {
		int _pad[SIGEV_PAD_SIZE];
		 int _tid;

		struct {
			void (*_function)(sigval_t);
			void *_attribute;	/* really pthread_attr_t */
		} _sigev_thread;
	} _sigev_un;
} sigevent_t;

#define sigev_notify_function	_sigev_un._sigev_thread._function
#define sigev_notify_attributes	_sigev_un._sigev_thread._attribute
#define sigev_notify_thread_id	 _sigev_un._tid

#ifdef __KERNEL__

struct siginfo;
void do_schedule_next_timer(struct siginfo *info);

#ifndef HAVE_ARCH_COPY_SIGINFO

#include <linux/string.h>

static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
{
	if (from->si_code < 0)
		memcpy(to, from, sizeof(*to));
	else
		/* _sigchld is currently the largest know union member */
		memcpy(to, from, __ARCH_SI_PREAMBLE_SIZE + sizeof(from->_sifields._sigchld));
}

#endif

extern int copy_siginfo_to_user(struct siginfo __user *to, struct siginfo *from);

#endif /* __KERNEL__ */

#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASM_GENERIC_SIGINFO_H
	2	#define _ASM_GENERIC_SIGINFO_H
	3
	4	#include <linux/compiler.h>
	5	#include <linux/types.h>
	6
	7	typedef union sigval {
	8	int sival_int;
	9	void __user *sival_ptr;
	10	} sigval_t;
	11
	12	/*
	13	* This is the size (including padding) of the part of the
	14	* struct siginfo that is before the union.
	15	*/
	16	#ifndef __ARCH_SI_PREAMBLE_SIZE
	17	#define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int))
	18	#endif
	19
	20	#define SI_MAX_SIZE 128
	21	#ifndef SI_PAD_SIZE
	22	#define SI_PAD_SIZE ((SI_MAX_SIZE - __ARCH_SI_PREAMBLE_SIZE) / sizeof(int))
	23	#endif
	24
	25	#ifndef __ARCH_SI_UID_T
85efde6f	26	#define __ARCH_SI_UID_T __kernel_uid32_t
1da177e4 LT	27	#endif
	28
	29	/*
	30	* The default "si_band" type is "long", as specified by POSIX.
	31	* However, some architectures want to override this to "int"
	32	* for historical compatibility reasons, so we allow that.
	33	*/
	34	#ifndef __ARCH_SI_BAND_T
	35	#define __ARCH_SI_BAND_T long
	36	#endif
	37
	38	#ifndef HAVE_ARCH_SIGINFO_T
	39
	40	typedef struct siginfo {
	41	int si_signo;
	42	int si_errno;
	43	int si_code;
	44
	45	union {
	46	int _pad[SI_PAD_SIZE];
	47
	48	/* kill() */
	49	struct {
85efde6f	50	__kernel_pid_t _pid; /* sender's pid */
1da177e4 LT	51	__ARCH_SI_UID_T _uid; /* sender's uid */
	52	} _kill;
	53
	54	/* POSIX.1b timers */
	55	struct {
85efde6f	56	__kernel_timer_t _tid; /* timer id */
1da177e4 LT	57	int _overrun; /* overrun count */
	58	char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
	59	sigval_t _sigval; /* same as below */
	60	int _sys_private; /* not to be passed to user */
	61	} _timer;
	62
	63	/* POSIX.1b signals */
	64	struct {
85efde6f	65	__kernel_pid_t _pid; /* sender's pid */
1da177e4 LT	66	__ARCH_SI_UID_T _uid; /* sender's uid */
	67	sigval_t _sigval;
	68	} _rt;
	69
	70	/* SIGCHLD */
	71	struct {
85efde6f	72	__kernel_pid_t _pid; /* which child */
1da177e4 LT	73	__ARCH_SI_UID_T _uid; /* sender's uid */
1da177e4 LT	74	int _status; /* exit code */
85efde6f AB	75	__kernel_clock_t _utime;
85efde6f AB	76	__kernel_clock_t _stime;
1da177e4 LT	77	} _sigchld;
	78
	79	/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
	80	struct {
	81	void __user _addr; / faulting insn/memory ref. */
	82	#ifdef __ARCH_SI_TRAPNO
	83	int _trapno; /* TRAP # which caused the signal */
	84	#endif
ad5fa913	85	short _addr_lsb; /* LSB of the reported address */
1da177e4 LT	86	} _sigfault;
	87
	88	/* SIGPOLL */
	89	struct {
	90	__ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */
	91	int _fd;
	92	} _sigpoll;
	93	} _sifields;
	94	} siginfo_t;
	95
	96	#endif
	97
	98	/*
	99	* How these fields are to be accessed.
	100	*/
	101	#define si_pid _sifields._kill._pid
	102	#define si_uid _sifields._kill._uid
	103	#define si_tid _sifields._timer._tid
	104	#define si_overrun _sifields._timer._overrun
	105	#define si_sys_private _sifields._timer._sys_private
	106	#define si_status _sifields._sigchld._status
	107	#define si_utime _sifields._sigchld._utime
	108	#define si_stime _sifields._sigchld._stime
	109	#define si_value _sifields._rt._sigval
	110	#define si_int _sifields._rt._sigval.sival_int
	111	#define si_ptr _sifields._rt._sigval.sival_ptr
	112	#define si_addr _sifields._sigfault._addr
	113	#ifdef __ARCH_SI_TRAPNO
	114	#define si_trapno _sifields._sigfault._trapno
	115	#endif
ad5fa913	116	#define si_addr_lsb _sifields._sigfault._addr_lsb
1da177e4 LT	117	#define si_band _sifields._sigpoll._band
	118	#define si_fd _sifields._sigpoll._fd
	119
	120	#ifdef __KERNEL__
	121	#define __SI_MASK 0xffff0000u
	122	#define __SI_KILL (0 << 16)
	123	#define __SI_TIMER (1 << 16)
	124	#define __SI_POLL (2 << 16)
	125	#define __SI_FAULT (3 << 16)
	126	#define __SI_CHLD (4 << 16)
	127	#define __SI_RT (5 << 16)
	128	#define __SI_MESGQ (6 << 16)
	129	#define __SI_CODE(T,N) ((T) \| ((N) & 0xffff))
	130	#else
	131	#define __SI_KILL 0
	132	#define __SI_TIMER 0
	133	#define __SI_POLL 0
	134	#define __SI_FAULT 0
	135	#define __SI_CHLD 0
	136	#define __SI_RT 0
	137	#define __SI_MESGQ 0
	138	#define __SI_CODE(T,N) (N)
	139	#endif
	140
	141	/*
	142	* si_code values
	143	* Digital reserves positive values for kernel-generated signals.
	144	*/
	145	#define SI_USER 0 /* sent by kill, sigsend, raise */
	146	#define SI_KERNEL 0x80 /* sent by the kernel from somewhere */
	147	#define SI_QUEUE -1 /* sent by sigqueue */
	148	#define SI_TIMER __SI_CODE(__SI_TIMER,-2) /* sent by timer expiration */
	149	#define SI_MESGQ __SI_CODE(__SI_MESGQ,-3) /* sent by real time mesq state change */
	150	#define SI_ASYNCIO -4 /* sent by AIO completion */
	151	#define SI_SIGIO -5 /* sent by queued SIGIO */
	152	#define SI_TKILL -6 /* sent by tkill system call */
	153	#define SI_DETHREAD -7 /* sent by execve() killing subsidiary threads */
	154
	155	#define SI_FROMUSER(siptr) ((siptr)->si_code <= 0)
	156	#define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0)
	157
	158	/*
	159	* SIGILL si_codes
	160	*/
	161	#define ILL_ILLOPC (__SI_FAULT\|1) /* illegal opcode */
	162	#define ILL_ILLOPN (__SI_FAULT\|2) /* illegal operand */
	163	#define ILL_ILLADR (__SI_FAULT\|3) /* illegal addressing mode */
	164	#define ILL_ILLTRP (__SI_FAULT\|4) /* illegal trap */
	165	#define ILL_PRVOPC (__SI_FAULT\|5) /* privileged opcode */
	166	#define ILL_PRVREG (__SI_FAULT\|6) /* privileged register */
	167	#define ILL_COPROC (__SI_FAULT\|7) /* coprocessor error */
	168	#define ILL_BADSTK (__SI_FAULT\|8) /* internal stack error */
	169	#define NSIGILL 8
	170
	171	/*
	172	* SIGFPE si_codes
	173	*/
	174	#define FPE_INTDIV (__SI_FAULT\|1) /* integer divide by zero */
	175	#define FPE_INTOVF (__SI_FAULT\|2) /* integer overflow */
	176	#define FPE_FLTDIV (__SI_FAULT\|3) /* floating point divide by zero */
	177	#define FPE_FLTOVF (__SI_FAULT\|4) /* floating point overflow */
	178	#define FPE_FLTUND (__SI_FAULT\|5) /* floating point underflow */
	179	#define FPE_FLTRES (__SI_FAULT\|6) /* floating point inexact result */
	180	#define FPE_FLTINV (__SI_FAULT\|7) /* floating point invalid operation */
181	#define FPE_FLTSUB (__SI_FAULT\|8) /* subscript out of range */
182	#define NSIGFPE 8
183
184	/*
185	* SIGSEGV si_codes
186	*/
187	#define SEGV_MAPERR (__SI_FAULT\|1) /* address not mapped to object */
188	#define SEGV_ACCERR (__SI_FAULT\|2) /* invalid permissions for mapped object */
189	#define NSIGSEGV 2
190
191	/*
192	* SIGBUS si_codes
193	*/
194	#define BUS_ADRALN (__SI_FAULT\|1) /* invalid address alignment */
25985edc	195	#define BUS_ADRERR (__SI_FAULT\|2) /* non-existent physical address */
1da177e4	196	#define BUS_OBJERR (__SI_FAULT\|3) /* object specific hardware error */
ad5fa913 AK	197	/* hardware memory error consumed on a machine check: action required */
	198	#define BUS_MCEERR_AR (__SI_FAULT\|4)
	199	/* hardware memory error detected in process but not consumed: action optional*/
	200	#define BUS_MCEERR_AO (__SI_FAULT\|5)
	201	#define NSIGBUS 5
1da177e4 LT	202
	203	/*
	204	* SIGTRAP si_codes
	205	*/
	206	#define TRAP_BRKPT (__SI_FAULT\|1) /* process breakpoint */
	207	#define TRAP_TRACE (__SI_FAULT\|2) /* process trace trap */
da654b74 SD	208	#define TRAP_BRANCH (__SI_FAULT\|3) /* process taken branch trap */
da654b74 SD	209	#define TRAP_HWBKPT (__SI_FAULT\|4) /* hardware breakpoint/watchpoint */
0769c298	210	#define NSIGTRAP 4
1da177e4 LT	211
	212	/*
	213	* SIGCHLD si_codes
	214	*/
	215	#define CLD_EXITED (__SI_CHLD\|1) /* child has exited */
	216	#define CLD_KILLED (__SI_CHLD\|2) /* child was killed */
	217	#define CLD_DUMPED (__SI_CHLD\|3) /* child terminated abnormally */
	218	#define CLD_TRAPPED (__SI_CHLD\|4) /* traced child has trapped */
	219	#define CLD_STOPPED (__SI_CHLD\|5) /* child has stopped */
	220	#define CLD_CONTINUED (__SI_CHLD\|6) /* stopped child has continued */
	221	#define NSIGCHLD 6
	222
	223	/*
	224	* SIGPOLL si_codes
	225	*/
	226	#define POLL_IN (__SI_POLL\|1) /* data input available */
	227	#define POLL_OUT (__SI_POLL\|2) /* output buffers available */
	228	#define POLL_MSG (__SI_POLL\|3) /* input message available */
	229	#define POLL_ERR (__SI_POLL\|4) /* i/o error */
	230	#define POLL_PRI (__SI_POLL\|5) /* high priority input available */
	231	#define POLL_HUP (__SI_POLL\|6) /* device disconnected */
	232	#define NSIGPOLL 6
	233
	234	/*
	235	* sigevent definitions
	236	*
	237	* It seems likely that SIGEV_THREAD will have to be handled from
	238	* userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
	239	* thread manager then catches and does the appropriate nonsense.
	240	* However, everything is written out here so as to not get lost.
	241	*/
	242	#define SIGEV_SIGNAL 0 /* notify via signal */
	243	#define SIGEV_NONE 1 /* other notification: meaningless */
	244	#define SIGEV_THREAD 2 /* deliver via thread creation */
	245	#define SIGEV_THREAD_ID 4 /* deliver to thread */
	246
a71c1ab5 SR	247	/*
	248	* This works because the alignment is ok on all current architectures
	249	* but we leave open this being overridden in the future
	250	*/
	251	#ifndef __ARCH_SIGEV_PREAMBLE_SIZE
	252	#define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(int) * 2 + sizeof(sigval_t))
1da177e4 LT	253	#endif
1da177e4 LT	254
a71c1ab5 SR	255	#define SIGEV_MAX_SIZE 64
	256	#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \
	257	/ sizeof(int))
	258
1da177e4 LT	259	typedef struct sigevent {
	260	sigval_t sigev_value;
	261	int sigev_signo;
	262	int sigev_notify;
	263	union {
	264	int _pad[SIGEV_PAD_SIZE];
	265	int _tid;
	266
	267	struct {
	268	void (*_function)(sigval_t);
	269	void _attribute; / really pthread_attr_t */
	270	} _sigev_thread;
	271	} _sigev_un;
	272	} sigevent_t;
	273
	274	#define sigev_notify_function _sigev_un._sigev_thread._function
	275	#define sigev_notify_attributes _sigev_un._sigev_thread._attribute
	276	#define sigev_notify_thread_id _sigev_un._tid
	277
	278	#ifdef __KERNEL__
	279
	280	struct siginfo;
	281	void do_schedule_next_timer(struct siginfo *info);
	282
	283	#ifndef HAVE_ARCH_COPY_SIGINFO
	284
	285	#include <linux/string.h>
	286
	287	static inline void copy_siginfo(struct siginfo to, struct siginfo from)
	288	{
	289	if (from->si_code < 0)
	290	memcpy(to, from, sizeof(*to));
	291	else
	292	/* _sigchld is currently the largest know union member */
	293	memcpy(to, from, __ARCH_SI_PREAMBLE_SIZE + sizeof(from->_sifields._sigchld));
	294	}
	295
	296	#endif
	297
	298	extern int copy_siginfo_to_user(struct siginfo __user to, struct siginfo from);
	299
	300	#endif /* __KERNEL__ */
	301
	302	#endif