1#ifndef _ASM_IA64_SIGINFO_H
2#define _ASM_IA64_SIGINFO_H
3
4/*
5 * Copyright (C) 1998-2002 Hewlett-Packard Co
6 *	David Mosberger-Tang <davidm@hpl.hp.com>
7 */
8
9#include <linux/types.h>
10
11typedef union sigval {
12	int sival_int;
13	void *sival_ptr;
14} sigval_t;
15
16#define SI_MAX_SIZE	128
17#define SI_PAD_SIZE	((SI_MAX_SIZE/sizeof(int)) - 4)
18
19typedef struct siginfo {
20	int si_signo;
21	int si_errno;
22	int si_code;
23	int __pad0;
24
25	union {
26		int _pad[SI_PAD_SIZE];
27
28		/* kill() */
29		struct {
30			pid_t _pid;		/* sender's pid */
31			uid_t _uid;		/* sender's uid */
32		} _kill;
33
34		/* POSIX.1b timers */
35		struct {
36			unsigned int _timer1;
37			unsigned int _timer2;
38		} _timer;
39
40		/* POSIX.1b signals */
41		struct {
42			pid_t _pid;		/* sender's pid */
43			uid_t _uid;		/* sender's uid */
44			sigval_t _sigval;
45		} _rt;
46
47		/* SIGCHLD */
48		struct {
49			pid_t _pid;		/* which child */
50			uid_t _uid;		/* sender's uid */
51			int _status;		/* exit code */
52			clock_t _utime;
53			clock_t _stime;
54		} _sigchld;
55
56		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
57		struct {
58			void *_addr;		/* faulting insn/memory ref. */
59			int _imm;		/* immediate value for "break" */
60			unsigned int _flags;	/* see below */
61			unsigned long _isr;	/* isr */
62		} _sigfault;
63
64		/* SIGPOLL */
65		struct {
66			long _band;	/* POLL_IN, POLL_OUT, POLL_MSG (XPG requires a "long") */
67			int _fd;
68		} _sigpoll;
69		/* SIGPROF */
70		struct {
71			pid_t _pid;		/* which child */
72			uid_t _uid;		/* sender's uid */
73			unsigned long _pfm_ovfl_counters[4]; /* which PMU counter overflowed */
74		} _sigprof;
75	} _sifields;
76} siginfo_t;
77
78/*
79 * How these fields are to be accessed.
80 */
81#define si_pid		_sifields._kill._pid
82#define si_uid		_sifields._kill._uid
83#define si_status	_sifields._sigchld._status
84#define si_utime	_sifields._sigchld._utime
85#define si_stime	_sifields._sigchld._stime
86#define si_value	_sifields._rt._sigval
87#define si_int		_sifields._rt._sigval.sival_int
88#define si_ptr		_sifields._rt._sigval.sival_ptr
89#define si_addr		_sifields._sigfault._addr
90#define si_imm		_sifields._sigfault._imm	/* as per UNIX SysV ABI spec */
91#define si_flags	_sifields._sigfault._flags
92/*
93 * si_isr is valid for SIGILL, SIGFPE, SIGSEGV, SIGBUS, and SIGTRAP provided that
94 * si_code is non-zero and __ISR_VALID is set in si_flags.
95 */
96#define si_isr		_sifields._sigfault._isr
97#define si_band		_sifields._sigpoll._band
98#define si_fd		_sifields._sigpoll._fd
99#define si_pfm_ovfl	_sifields._sigprof._pfm_ovfl_counters
100
101/*
102 * Flag values for si_flags:
103 */
104#define __ISR_VALID_BIT	0
105#define __ISR_VALID	(1 << __ISR_VALID_BIT)
106
107/*
108 * si_code values
109 * Positive values for kernel-generated signals.
110 */
111#ifdef __KERNEL__
112#define __SI_MASK	0xffff0000
113#define __SI_KILL	(0 << 16)
114#define __SI_TIMER	(1 << 16)
115#define __SI_POLL	(2 << 16)
116#define __SI_FAULT	(3 << 16)
117#define __SI_CHLD	(4 << 16)
118#define __SI_RT		(5 << 16)
119#define __SI_PROF	(6 << 16)
120#define __SI_CODE(T,N)	((T) << 16 | ((N) & 0xffff))
121#else
122#define __SI_KILL	0
123#define __SI_TIMER	0
124#define __SI_POLL	0
125#define __SI_FAULT	0
126#define __SI_CHLD	0
127#define __SI_RT		0
128#define __SI_CODE(T,N)	(N)
129#endif
130
131#define SI_USER		0		/* sent by kill, sigsend, raise */
132#define SI_KERNEL	0x80		/* sent by the kernel from somewhere */
133#define SI_QUEUE	(-1)		/* sent by sigqueue */
134#define SI_TIMER __SI_CODE(__SI_TIMER,-2) /* sent by timer expiration */
135#define SI_MESGQ	(-3)		/* sent by real time mesq state change */
136#define SI_ASYNCIO	(-4)		/* sent by AIO completion */
137#define SI_SIGIO	(-5)		/* sent by queued SIGIO */
138#define SI_TKILL	(-6)		/* sent by tkill system call */
139
140#define SI_FROMUSER(siptr)	((siptr)->si_code <= 0)
141#define SI_FROMKERNEL(siptr)	((siptr)->si_code > 0)
142
143/*
144 * SIGILL si_codes
145 */
146#define ILL_ILLOPC	(__SI_FAULT|1)	/* illegal opcode */
147#define ILL_ILLOPN	(__SI_FAULT|2)	/* illegal operand */
148#define ILL_ILLADR	(__SI_FAULT|3)	/* illegal addressing mode */
149#define ILL_ILLTRP	(__SI_FAULT|4)	/* illegal trap */
150#define ILL_PRVOPC	(__SI_FAULT|5)	/* privileged opcode */
151#define ILL_PRVREG	(__SI_FAULT|6)	/* privileged register */
152#define ILL_COPROC	(__SI_FAULT|7)	/* coprocessor error */
153#define ILL_BADSTK	(__SI_FAULT|8)	/* internal stack error */
154#define ILL_BADIADDR	(__SI_FAULT|9)	/* unimplemented instruction address */
155#define __ILL_BREAK	(__SI_FAULT|10)	/* illegal break */
156#define __ILL_BNDMOD	(__SI_FAULT|11)	/* bundle-update (modification) in progress */
157#define NSIGILL		11
158
159/*
160 * SIGFPE si_codes
161 */
162#define FPE_INTDIV	(__SI_FAULT|1)	/* integer divide by zero */
163#define FPE_INTOVF	(__SI_FAULT|2)	/* integer overflow */
164#define FPE_FLTDIV	(__SI_FAULT|3)	/* floating point divide by zero */
165#define FPE_FLTOVF	(__SI_FAULT|4)	/* floating point overflow */
166#define FPE_FLTUND	(__SI_FAULT|5)	/* floating point underflow */
167#define FPE_FLTRES	(__SI_FAULT|6)	/* floating point inexact result */
168#define FPE_FLTINV	(__SI_FAULT|7)	/* floating point invalid operation */
169#define FPE_FLTSUB	(__SI_FAULT|8)	/* subscript out of range */
170#define __FPE_DECOVF	(__SI_FAULT|9)	/* decimal overflow */
171#define __FPE_DECDIV	(__SI_FAULT|10)	/* decimal division by zero */
172#define __FPE_DECERR	(__SI_FAULT|11)	/* packed decimal error */
173#define __FPE_INVASC	(__SI_FAULT|12)	/* invalid ASCII digit */
174#define __FPE_INVDEC	(__SI_FAULT|13)	/* invalid decimal digit */
175#define NSIGFPE		13
176
177/*
178 * SIGSEGV si_codes
179 */
180#define SEGV_MAPERR	(__SI_FAULT|1)	/* address not mapped to object */
181#define SEGV_ACCERR	(__SI_FAULT|2)	/* invalid permissions for mapped object */
182#define __SEGV_PSTKOVF	(__SI_FAULT|3)	/* paragraph stack overflow */
183#define NSIGSEGV	3
184
185/*
186 * SIGBUS si_codes
187 */
188#define BUS_ADRALN	(__SI_FAULT|1)	/* invalid address alignment */
189#define BUS_ADRERR	(__SI_FAULT|2)	/* non-existant physical address */
190#define BUS_OBJERR	(__SI_FAULT|3)	/* object specific hardware error */
191#define NSIGBUS		3
192
193/*
194 * SIGTRAP si_codes
195 */
196#define TRAP_BRKPT	(__SI_FAULT|1)	/* process breakpoint */
197#define TRAP_TRACE	(__SI_FAULT|2)	/* process trace trap */
198#define TRAP_BRANCH	(__SI_FAULT|3)	/* process taken branch trap */
199#define TRAP_HWBKPT	(__SI_FAULT|4)	/* hardware breakpoint or watchpoint */
200#define NSIGTRAP	4
201
202/*
203 * SIGCHLD si_codes
204 */
205#define CLD_EXITED	(__SI_CHLD|1)	/* child has exited */
206#define CLD_KILLED	(__SI_CHLD|2)	/* child was killed */
207#define CLD_DUMPED	(__SI_CHLD|3)	/* child terminated abnormally */
208#define CLD_TRAPPED	(__SI_CHLD|4)	/* traced child has trapped */
209#define CLD_STOPPED	(__SI_CHLD|5)	/* child has stopped */
210#define CLD_CONTINUED	(__SI_CHLD|6)	/* stopped child has continued */
211#define NSIGCHLD	6
212
213/*
214 * SIGPOLL si_codes
215 */
216#define POLL_IN		(__SI_POLL|1)	/* data input available */
217#define POLL_OUT	(__SI_POLL|2)	/* output buffers available */
218#define POLL_MSG	(__SI_POLL|3)	/* input message available */
219#define POLL_ERR	(__SI_POLL|4)	/* i/o error */
220#define POLL_PRI	(__SI_POLL|5)	/* high priority input available */
221#define POLL_HUP	(__SI_POLL|6)	/* device disconnected */
222#define NSIGPOLL	6
223
224/*
225 * SIGPROF si_codes
226 */
227#define PROF_OVFL	(__SI_PROF|1)  /* some counters overflowed */
228
229/*
230 * sigevent definitions
231 *
232 * It seems likely that SIGEV_THREAD will have to be handled from userspace, libpthread
233 * transmuting it to SIGEV_SIGNAL, which the thread manager then catches and does the
234 * appropriate nonsense.  However, everything is written out here so as to not get lost.
235 */
236#define SIGEV_SIGNAL	0	/* notify via signal */
237#define SIGEV_NONE	1	/* other notification: meaningless */
238#define SIGEV_THREAD	2	/* deliver via thread creation */
239
240#define SIGEV_MAX_SIZE	64
241#define SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE/sizeof(int)) - 4)
242
243typedef struct sigevent {
244	sigval_t sigev_value;
245	int sigev_signo;
246	int sigev_notify;
247	union {
248		int _pad[SIGEV_PAD_SIZE];
249
250		struct {
251			void (*_function)(sigval_t);
252			void *_attribute;	/* really pthread_attr_t */
253		} _sigev_thread;
254	} _sigev_un;
255} sigevent_t;
256
257#define sigev_notify_function	_sigev_un._sigev_thread._function
258#define sigev_notify_attributes	_sigev_un._sigev_thread._attribute
259
260#ifdef __KERNEL__
261#include <linux/string.h>
262
263static inline void
264copy_siginfo (siginfo_t *to, siginfo_t *from)
265{
266	if (from->si_code < 0)
267		memcpy(to, from, sizeof(siginfo_t));
268	else
269		/* _sigchld is currently the largest know union member */
270		memcpy(to, from, 3*sizeof(int) + sizeof(from->_sifields._sigchld));
271}
272
273extern int copy_siginfo_to_user(siginfo_t *to, siginfo_t *from);
274extern int copy_siginfo_from_user(siginfo_t *to, siginfo_t *from);
275
276#endif /* __KERNEL__ */
277
278#endif /* _ASM_IA64_SIGINFO_H */
279