1/*
2 * BK Id: SCCS/s.siginfo.h 1.5 05/17/01 18:14:25 cort
3 */
4#ifndef _PPC_SIGINFO_H
5#define _PPC_SIGINFO_H
6
7/* Copied from i386 from alpha. */
8
9typedef union sigval {
10	int sival_int;
11	void *sival_ptr;
12} sigval_t;
13
14#define SI_MAX_SIZE	128
15#define SI_PAD_SIZE	((SI_MAX_SIZE/sizeof(int)) - 3)
16
17typedef struct siginfo {
18	int si_signo;
19	int si_errno;
20	int si_code;
21
22	union {
23		int _pad[SI_PAD_SIZE];
24
25		/* kill() */
26		struct {
27			pid_t _pid;		/* sender's pid */
28			uid_t _uid;		/* sender's uid */
29		} _kill;
30
31		/* POSIX.1b timers */
32		struct {
33			unsigned int _timer1;
34			unsigned int _timer2;
35		} _timer;
36
37		/* POSIX.1b signals */
38		struct {
39			pid_t _pid;		/* sender's pid */
40			uid_t _uid;		/* sender's uid */
41			sigval_t _sigval;
42		} _rt;
43
44		/* SIGCHLD */
45		struct {
46			pid_t _pid;		/* which child */
47			uid_t _uid;		/* sender's uid */
48			int _status;		/* exit code */
49			clock_t _utime;
50			clock_t _stime;
51		} _sigchld;
52
53		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
54		struct {
55			void *_addr; /* faulting insn/memory ref. */
56		} _sigfault;
57
58		/* SIGPOLL */
59		struct {
60			int _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
61			int _fd;
62		} _sigpoll;
63	} _sifields;
64} siginfo_t;
65
66/*
67 * How these fields are to be accessed.
68 */
69#define si_pid		_sifields._kill._pid
70#define si_uid		_sifields._kill._uid
71#define si_status	_sifields._sigchld._status
72#define si_utime	_sifields._sigchld._utime
73#define si_stime	_sifields._sigchld._stime
74#define si_value	_sifields._rt._sigval
75#define si_int		_sifields._rt._sigval.sival_int
76#define si_ptr		_sifields._rt._sigval.sival_ptr
77#define si_addr		_sifields._sigfault._addr
78#define si_band		_sifields._sigpoll._band
79#define si_fd		_sifields._sigpoll._fd
80
81#ifdef __KERNEL__
82#define __SI_MASK	0xffff0000
83#define __SI_KILL	(0 << 16)
84#define __SI_TIMER	(1 << 16)
85#define __SI_POLL	(2 << 16)
86#define __SI_FAULT	(3 << 16)
87#define __SI_CHLD	(4 << 16)
88#define __SI_RT		(5 << 16)
89#define __SI_CODE(T,N)	((T) << 16 | ((N) & 0xffff))
90#else
91#define __SI_KILL	0
92#define __SI_TIMER	0
93#define __SI_POLL	0
94#define __SI_FAULT	0
95#define __SI_CHLD	0
96#define __SI_RT		0
97#define __SI_CODE(T,N)	(N)
98#endif
99
100/*
101 * si_code values
102 * Digital reserves positive values for kernel-generated signals.
103 */
104#define SI_USER		0		/* sent by kill, sigsend, raise */
105#define SI_KERNEL	0x80		/* sent by the kernel from somewhere */
106#define SI_QUEUE	-1		/* sent by sigqueue */
107#define SI_TIMER __SI_CODE(__SI_TIMER,-2) /* sent by timer expiration */
108#define SI_MESGQ	-3		/* sent by real time mesq state change */
109#define SI_ASYNCIO	-4		/* sent by AIO completion */
110#define SI_SIGIO	-5		/* sent by queued SIGIO */
111#define SI_TKILL	-6		/* sent by tkill system call */
112
113#define SI_FROMUSER(siptr)	((siptr)->si_code <= 0)
114#define SI_FROMKERNEL(siptr)	((siptr)->si_code > 0)
115
116/*
117 * SIGILL si_codes
118 */
119#define ILL_ILLOPC	(__SI_FAULT|1)	/* illegal opcode */
120#define ILL_ILLOPN	(__SI_FAULT|2)	/* illegal operand */
121#define ILL_ILLADR	(__SI_FAULT|3)	/* illegal addressing mode */
122#define ILL_ILLTRP	(__SI_FAULT|4)	/* illegal trap */
123#define ILL_PRVOPC	(__SI_FAULT|5)	/* privileged opcode */
124#define ILL_PRVREG	(__SI_FAULT|6)	/* privileged register */
125#define ILL_COPROC	(__SI_FAULT|7)	/* coprocessor error */
126#define ILL_BADSTK	(__SI_FAULT|8)	/* internal stack error */
127#define NSIGILL		8
128
129/*
130 * SIGFPE si_codes
131 */
132#define FPE_INTDIV	(__SI_FAULT|1)	/* integer divide by zero */
133#define FPE_INTOVF	(__SI_FAULT|2)	/* integer overflow */
134#define FPE_FLTDIV	(__SI_FAULT|3)	/* floating point divide by zero */
135#define FPE_FLTOVF	(__SI_FAULT|4)	/* floating point overflow */
136#define FPE_FLTUND	(__SI_FAULT|5)	/* floating point underflow */
137#define FPE_FLTRES	(__SI_FAULT|6)	/* floating point inexact result */
138#define FPE_FLTINV	(__SI_FAULT|7)	/* floating point invalid operation */
139#define FPE_FLTSUB	(__SI_FAULT|8)	/* subscript out of range */
140#define NSIGFPE		8
141
142/*
143 * SIGSEGV si_codes
144 */
145#define SEGV_MAPERR	(__SI_FAULT|1)	/* address not mapped to object */
146#define SEGV_ACCERR	(__SI_FAULT|2)	/* invalid permissions for mapped object */
147#define NSIGSEGV	2
148
149/*
150 * SIGBUS si_codes
151 */
152#define BUS_ADRALN	(__SI_FAULT|1)	/* invalid address alignment */
153#define BUS_ADRERR	(__SI_FAULT|2)	/* non-existant physical address */
154#define BUS_OBJERR	(__SI_FAULT|3)	/* object specific hardware error */
155#define NSIGBUS		3
156
157/*
158 * SIGTRAP si_codes
159 */
160#define TRAP_BRKPT	(__SI_FAULT|1)	/* process breakpoint */
161#define TRAP_TRACE	(__SI_FAULT|2)	/* process trace trap */
162#define NSIGTRAP	2
163
164/*
165 * SIGCHLD si_codes
166 */
167#define CLD_EXITED	(__SI_CHLD|1)	/* child has exited */
168#define CLD_KILLED	(__SI_CHLD|2)	/* child was killed */
169#define CLD_DUMPED	(__SI_CHLD|3)	/* child terminated abnormally */
170#define CLD_TRAPPED	(__SI_CHLD|4)	/* traced child has trapped */
171#define CLD_STOPPED	(__SI_CHLD|5)	/* child has stopped */
172#define CLD_CONTINUED	(__SI_CHLD|6)	/* stopped child has continued */
173#define NSIGCHLD	6
174
175/*
176 * SIGPOLL si_codes
177 */
178#define POLL_IN		(__SI_POLL|1)	/* data input available */
179#define POLL_OUT	(__SI_POLL|2)	/* output buffers available */
180#define POLL_MSG	(__SI_POLL|3)	/* input message available */
181#define POLL_ERR	(__SI_POLL|4)	/* i/o error */
182#define POLL_PRI	(__SI_POLL|5)	/* high priority input available */
183#define POLL_HUP	(__SI_POLL|6)	/* device disconnected */
184#define NSIGPOLL	6
185
186/*
187 * sigevent definitions
188 *
189 * It seems likely that SIGEV_THREAD will have to be handled from
190 * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
191 * thread manager then catches and does the appropriate nonsense.
192 * However, everything is written out here so as to not get lost.
193 */
194#define SIGEV_SIGNAL	0	/* notify via signal */
195#define SIGEV_NONE	1	/* other notification: meaningless */
196#define SIGEV_THREAD	2	/* deliver via thread creation */
197
198#define SIGEV_MAX_SIZE	64
199#define SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE/sizeof(int)) - 3)
200
201typedef struct sigevent {
202	sigval_t sigev_value;
203	int sigev_signo;
204	int sigev_notify;
205	union {
206		int _pad[SIGEV_PAD_SIZE];
207
208		struct {
209			void (*_function)(sigval_t);
210			void *_attribute;	/* really pthread_attr_t */
211		} _sigev_thread;
212	} _sigev_un;
213} sigevent_t;
214
215#define sigev_notify_function	_sigev_un._sigev_thread._function
216#define sigev_notify_attributes	_sigev_un._sigev_thread._attribute
217
218#ifdef __KERNEL__
219#include <linux/string.h>
220
221extern inline void copy_siginfo(siginfo_t *to, siginfo_t *from)
222{
223	if (from->si_code < 0)
224		memcpy(to, from, sizeof(siginfo_t));
225	else
226		/* _sigchld is currently the largest know union member */
227		memcpy(to, from, 3*sizeof(int) + sizeof(from->_sifields._sigchld));
228}
229
230extern int copy_siginfo_to_user(siginfo_t *to, siginfo_t *from);
231
232#endif /* __KERNEL__ */
233
234#endif
235