[deliverable/linux.git] / include / uapi / asm-generic / siginfo.h

#ifndef _UAPI_ASM_GENERIC_SIGINFO_H
#define _UAPI_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 __ARCH_SI_CLOCK_T
#define __ARCH_SI_CLOCK_T __kernel_clock_t
#endif

#ifndef __ARCH_SI_ATTRIBUTES
#define __ARCH_SI_ATTRIBUTES
#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 */
			__ARCH_SI_CLOCK_T _utime;
			__ARCH_SI_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 */
			struct {
				void __user *_lower;
				void __user *_upper;
			} _addr_bnd;
		} _sigfault;

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

		/* SIGSYS */
		struct {
			void __user *_call_addr; /* calling user insn */
			int _syscall;	/* triggering system call number */
			unsigned int _arch;	/* AUDIT_ARCH_* of syscall */
		} _sigsys;
	} _sifields;
} __ARCH_SI_ATTRIBUTES siginfo_t;

/* If the arch shares siginfo, then it has SIGSYS. */
#define __ARCH_SIGSYS
#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_lower	_sifields._sigfault._addr_bnd._lower
#define si_upper	_sifields._sigfault._addr_bnd._upper
#define si_band		_sifields._sigpoll._band
#define si_fd		_sifields._sigpoll._fd
#ifdef __ARCH_SIGSYS
#define si_call_addr	_sifields._sigsys._call_addr
#define si_syscall	_sifields._sigsys._syscall
#define si_arch		_sifields._sigsys._arch
#endif

#ifndef __KERNEL__
#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_SYS	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 SEGV_BNDERR	(__SI_FAULT|3)  /* failed address bound checks */
#define NSIGSEGV	3

/*
 * 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

/*
 * SIGSYS si_codes
 */
#define SYS_SECCOMP		(__SI_SYS|1)	/* seccomp triggered */
#define NSIGSYS	1

/*
 * 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


#endif /* _UAPI_ASM_GENERIC_SIGINFO_H */
Commit	Line	Data
8a1ab315 DH	1	#ifndef _UAPI_ASM_GENERIC_SIGINFO_H
	2	#define _UAPI_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
	26	#define __ARCH_SI_UID_T __kernel_uid32_t
	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 __ARCH_SI_CLOCK_T
	39	#define __ARCH_SI_CLOCK_T __kernel_clock_t
	40	#endif
	41
	42	#ifndef __ARCH_SI_ATTRIBUTES
	43	#define __ARCH_SI_ATTRIBUTES
	44	#endif
	45
	46	#ifndef HAVE_ARCH_SIGINFO_T
	47
	48	typedef struct siginfo {
	49	int si_signo;
	50	int si_errno;
	51	int si_code;
	52
	53	union {
	54	int _pad[SI_PAD_SIZE];
	55
	56	/* kill() */
	57	struct {
	58	__kernel_pid_t _pid; /* sender's pid */
	59	__ARCH_SI_UID_T _uid; /* sender's uid */
	60	} _kill;
	61
	62	/* POSIX.1b timers */
	63	struct {
	64	__kernel_timer_t _tid; /* timer id */
65	int _overrun; /* overrun count */
66	char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
67	sigval_t _sigval; /* same as below */
68	int _sys_private; /* not to be passed to user */
69	} _timer;
70
71	/* POSIX.1b signals */
72	struct {
73	__kernel_pid_t _pid; /* sender's pid */
74	__ARCH_SI_UID_T _uid; /* sender's uid */
75	sigval_t _sigval;
76	} _rt;
77
78	/* SIGCHLD */
79	struct {
80	__kernel_pid_t _pid; /* which child */
81	__ARCH_SI_UID_T _uid; /* sender's uid */
82	int _status; /* exit code */
83	__ARCH_SI_CLOCK_T _utime;
84	__ARCH_SI_CLOCK_T _stime;
85	} _sigchld;
86
87	/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
88	struct {
89	void __user _addr; / faulting insn/memory ref. */
90	#ifdef __ARCH_SI_TRAPNO
91	int _trapno; /* TRAP # which caused the signal */
92	#endif
93	short _addr_lsb; /* LSB of the reported address */
ee1b58d3 QR	94	struct {
	95	void __user *_lower;
	96	void __user *_upper;
	97	} _addr_bnd;
8a1ab315 DH	98	} _sigfault;
	99
	100	/* SIGPOLL */
	101	struct {
	102	__ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */
	103	int _fd;
	104	} _sigpoll;
	105
	106	/* SIGSYS */
	107	struct {
	108	void __user _call_addr; / calling user insn */
	109	int _syscall; /* triggering system call number */
	110	unsigned int _arch; /* AUDIT_ARCH_* of syscall */
	111	} _sigsys;
	112	} _sifields;
	113	} __ARCH_SI_ATTRIBUTES siginfo_t;
	114
	115	/* If the arch shares siginfo, then it has SIGSYS. */
	116	#define __ARCH_SIGSYS
	117	#endif
	118
	119	/*
	120	* How these fields are to be accessed.
	121	*/
	122	#define si_pid _sifields._kill._pid
	123	#define si_uid _sifields._kill._uid
	124	#define si_tid _sifields._timer._tid
	125	#define si_overrun _sifields._timer._overrun
	126	#define si_sys_private _sifields._timer._sys_private
	127	#define si_status _sifields._sigchld._status
	128	#define si_utime _sifields._sigchld._utime
	129	#define si_stime _sifields._sigchld._stime
	130	#define si_value _sifields._rt._sigval
	131	#define si_int _sifields._rt._sigval.sival_int
	132	#define si_ptr _sifields._rt._sigval.sival_ptr
	133	#define si_addr _sifields._sigfault._addr
	134	#ifdef __ARCH_SI_TRAPNO
	135	#define si_trapno _sifields._sigfault._trapno
	136	#endif
	137	#define si_addr_lsb _sifields._sigfault._addr_lsb
ee1b58d3 QR	138	#define si_lower _sifields._sigfault._addr_bnd._lower
ee1b58d3 QR	139	#define si_upper _sifields._sigfault._addr_bnd._upper
8a1ab315 DH	140	#define si_band _sifields._sigpoll._band
	141	#define si_fd _sifields._sigpoll._fd
	142	#ifdef __ARCH_SIGSYS
	143	#define si_call_addr _sifields._sigsys._call_addr
	144	#define si_syscall _sifields._sigsys._syscall
	145	#define si_arch _sifields._sigsys._arch
	146	#endif
	147
	148	#ifndef __KERNEL__
	149	#define __SI_KILL 0
	150	#define __SI_TIMER 0
	151	#define __SI_POLL 0
	152	#define __SI_FAULT 0
	153	#define __SI_CHLD 0
	154	#define __SI_RT 0
	155	#define __SI_MESGQ 0
	156	#define __SI_SYS 0
	157	#define __SI_CODE(T,N) (N)
	158	#endif
	159
	160	/*
	161	* si_code values
	162	* Digital reserves positive values for kernel-generated signals.
	163	*/
	164	#define SI_USER 0 /* sent by kill, sigsend, raise */
	165	#define SI_KERNEL 0x80 /* sent by the kernel from somewhere */
	166	#define SI_QUEUE -1 /* sent by sigqueue */
	167	#define SI_TIMER __SI_CODE(__SI_TIMER,-2) /* sent by timer expiration */
	168	#define SI_MESGQ __SI_CODE(__SI_MESGQ,-3) /* sent by real time mesq state change */
	169	#define SI_ASYNCIO -4 /* sent by AIO completion */
	170	#define SI_SIGIO -5 /* sent by queued SIGIO */
	171	#define SI_TKILL -6 /* sent by tkill system call */
	172	#define SI_DETHREAD -7 /* sent by execve() killing subsidiary threads */
	173
	174	#define SI_FROMUSER(siptr) ((siptr)->si_code <= 0)
	175	#define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0)
	176
	177	/*
	178	* SIGILL si_codes
	179	*/
	180	#define ILL_ILLOPC (__SI_FAULT\|1) /* illegal opcode */
	181	#define ILL_ILLOPN (__SI_FAULT\|2) /* illegal operand */
	182	#define ILL_ILLADR (__SI_FAULT\|3) /* illegal addressing mode */
	183	#define ILL_ILLTRP (__SI_FAULT\|4) /* illegal trap */
	184	#define ILL_PRVOPC (__SI_FAULT\|5) /* privileged opcode */
	185	#define ILL_PRVREG (__SI_FAULT\|6) /* privileged register */
	186	#define ILL_COPROC (__SI_FAULT\|7) /* coprocessor error */
	187	#define ILL_BADSTK (__SI_FAULT\|8) /* internal stack error */
	188	#define NSIGILL 8
	189
	190	/*
	191	* SIGFPE si_codes
	192	*/
	193	#define FPE_INTDIV (__SI_FAULT\|1) /* integer divide by zero */
	194	#define FPE_INTOVF (__SI_FAULT\|2) /* integer overflow */
	195	#define FPE_FLTDIV (__SI_FAULT\|3) /* floating point divide by zero */
	196	#define FPE_FLTOVF (__SI_FAULT\|4) /* floating point overflow */
	197	#define FPE_FLTUND (__SI_FAULT\|5) /* floating point underflow */
	198	#define FPE_FLTRES (__SI_FAULT\|6) /* floating point inexact result */
	199	#define FPE_FLTINV (__SI_FAULT\|7) /* floating point invalid operation */
	200	#define FPE_FLTSUB (__SI_FAULT\|8) /* subscript out of range */
	201	#define NSIGFPE 8
	202
	203	/*
204	* SIGSEGV si_codes
205	*/
206	#define SEGV_MAPERR (__SI_FAULT\|1) /* address not mapped to object */
207	#define SEGV_ACCERR (__SI_FAULT\|2) /* invalid permissions for mapped object */
ee1b58d3 QR	208	#define SEGV_BNDERR (__SI_FAULT\|3) /* failed address bound checks */
ee1b58d3 QR	209	#define NSIGSEGV 3
8a1ab315 DH	210
	211	/*
	212	* SIGBUS si_codes
	213	*/
	214	#define BUS_ADRALN (__SI_FAULT\|1) /* invalid address alignment */
	215	#define BUS_ADRERR (__SI_FAULT\|2) /* non-existent physical address */
	216	#define BUS_OBJERR (__SI_FAULT\|3) /* object specific hardware error */
	217	/* hardware memory error consumed on a machine check: action required */
	218	#define BUS_MCEERR_AR (__SI_FAULT\|4)
	219	/* hardware memory error detected in process but not consumed: action optional*/
	220	#define BUS_MCEERR_AO (__SI_FAULT\|5)
	221	#define NSIGBUS 5
	222
	223	/*
	224	* SIGTRAP si_codes
	225	*/
	226	#define TRAP_BRKPT (__SI_FAULT\|1) /* process breakpoint */
	227	#define TRAP_TRACE (__SI_FAULT\|2) /* process trace trap */
	228	#define TRAP_BRANCH (__SI_FAULT\|3) /* process taken branch trap */
	229	#define TRAP_HWBKPT (__SI_FAULT\|4) /* hardware breakpoint/watchpoint */
	230	#define NSIGTRAP 4
	231
	232	/*
	233	* SIGCHLD si_codes
	234	*/
	235	#define CLD_EXITED (__SI_CHLD\|1) /* child has exited */
	236	#define CLD_KILLED (__SI_CHLD\|2) /* child was killed */
	237	#define CLD_DUMPED (__SI_CHLD\|3) /* child terminated abnormally */
	238	#define CLD_TRAPPED (__SI_CHLD\|4) /* traced child has trapped */
	239	#define CLD_STOPPED (__SI_CHLD\|5) /* child has stopped */
	240	#define CLD_CONTINUED (__SI_CHLD\|6) /* stopped child has continued */
	241	#define NSIGCHLD 6
	242
	243	/*
	244	* SIGPOLL si_codes
	245	*/
	246	#define POLL_IN (__SI_POLL\|1) /* data input available */
	247	#define POLL_OUT (__SI_POLL\|2) /* output buffers available */
	248	#define POLL_MSG (__SI_POLL\|3) /* input message available */
	249	#define POLL_ERR (__SI_POLL\|4) /* i/o error */
	250	#define POLL_PRI (__SI_POLL\|5) /* high priority input available */
	251	#define POLL_HUP (__SI_POLL\|6) /* device disconnected */
	252	#define NSIGPOLL 6
	253
	254	/*
	255	* SIGSYS si_codes
	256	*/
	257	#define SYS_SECCOMP (__SI_SYS\|1) /* seccomp triggered */
	258	#define NSIGSYS 1
	259
	260	/*
	261	* sigevent definitions
	262	*
	263	* It seems likely that SIGEV_THREAD will have to be handled from
	264	* userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
	265	* thread manager then catches and does the appropriate nonsense.
	266	* However, everything is written out here so as to not get lost.
	267	*/
	268	#define SIGEV_SIGNAL 0 /* notify via signal */
	269	#define SIGEV_NONE 1 /* other notification: meaningless */
	270	#define SIGEV_THREAD 2 /* deliver via thread creation */
	271	#define SIGEV_THREAD_ID 4 /* deliver to thread */
	272
	273	/*
274	* This works because the alignment is ok on all current architectures
275	* but we leave open this being overridden in the future
276	*/
277	#ifndef __ARCH_SIGEV_PREAMBLE_SIZE
278	#define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(int) * 2 + sizeof(sigval_t))
279	#endif
280
281	#define SIGEV_MAX_SIZE 64
282	#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE - __ARCH_SIGEV_PREAMBLE_SIZE) \
283	/ sizeof(int))
284
285	typedef struct sigevent {
286	sigval_t sigev_value;
287	int sigev_signo;
288	int sigev_notify;
289	union {
290	int _pad[SIGEV_PAD_SIZE];
291	int _tid;
292
293	struct {
294	void (*_function)(sigval_t);
295	void _attribute; / really pthread_attr_t */
296	} _sigev_thread;
297	} _sigev_un;
298	} sigevent_t;
299
300	#define sigev_notify_function _sigev_un._sigev_thread._function
301	#define sigev_notify_attributes _sigev_un._sigev_thread._attribute
302	#define sigev_notify_thread_id _sigev_un._tid
303
304
305	#endif /* _UAPI_ASM_GENERIC_SIGINFO_H */