1 #ifndef _ASM_IA64_SIGINFO_H
2 #define _ASM_IA64_SIGINFO_H
3
4 /*
5 * Copyright (C) 1998, 1999 Hewlett-Packard Co
6 * Copyright (C) 1998, 1999 David Mosberger-Tang <davidm@hpl.hp.com>
7 */
8
9 #include <linux/types.h>
10
11 typedef 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
19 typedef 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 int _pad0;
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 } _sifields;
70 } siginfo_t;
71
72 /*
73 * How these fields are to be accessed.
74 */
75 #define si_pid _sifields._kill._pid
76 #define si_uid _sifields._kill._uid
77 #define si_status _sifields._sigchld._status
78 #define si_utime _sifields._sigchld._utime
79 #define si_stime _sifields._sigchld._stime
80 #define si_value _sifields._rt._sigval
81 #define si_int _sifields._rt._sigval.sival_int
82 #define si_ptr _sifields._rt._sigval.sival_ptr
83 #define si_addr _sifields._sigfault._addr
84 #define si_imm _sifields._sigfault._imm /* as per UNIX SysV ABI spec */
85 #define si_isr _sifields._sigfault._isr /* valid if si_code==FPE_FLTxxx */
86 #define si_band _sifields._sigpoll._band
87 #define si_fd _sifields._sigpoll._fd
88
89 /*
90 * si_code values
91 * Positive values for kernel-generated signals.
92 */
93 #ifdef __KERNEL__
94 #define __SI_MASK 0xffff0000
95 #define __SI_KILL (0 << 16)
96 #define __SI_TIMER (1 << 16)
97 #define __SI_POLL (2 << 16)
98 #define __SI_FAULT (3 << 16)
99 #define __SI_CHLD (4 << 16)
100 #define __SI_RT (5 << 16)
101 #define __SI_CODE(T,N) ((T) << 16 | ((N) & 0xffff))
102 #else
103 #define __SI_KILL 0
104 #define __SI_TIMER 0
105 #define __SI_POLL 0
106 #define __SI_FAULT 0
107 #define __SI_CHLD 0
108 #define __SI_RT 0
109 #define __SI_CODE(T,N) (N)
110 #endif
111
112 #define SI_USER 0 /* sent by kill, sigsend, raise */
113 #define SI_KERNEL 0x80 /* sent by the kernel from somewhere */
114 #define SI_QUEUE -1 /* sent by sigqueue */
115 #define SI_TIMER __SI_CODE(__SI_TIMER,-2) /* sent by timer expiration */
116 #define SI_MESGQ -3 /* sent by real time mesq state change */
117 #define SI_ASYNCIO -4 /* sent by AIO completion */
118 #define SI_SIGIO -5 /* sent by queued SIGIO */
119
120 #define SI_FROMUSER(siptr) ((siptr)->si_code <= 0)
121 #define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0)
122
123 /*
124 * SIGILL si_codes
125 */
126 #define ILL_ILLOPC (__SI_FAULT|1) /* illegal opcode */
127 #define ILL_ILLOPN (__SI_FAULT|2) /* illegal operand */
128 #define ILL_ILLADR (__SI_FAULT|3) /* illegal addressing mode */
129 #define ILL_ILLTRP (__SI_FAULT|4) /* illegal trap */
130 #define ILL_PRVOPC (__SI_FAULT|5) /* privileged opcode */
131 #define ILL_PRVREG (__SI_FAULT|6) /* privileged register */
132 #define ILL_COPROC (__SI_FAULT|7) /* coprocessor error */
133 #define ILL_BADSTK (__SI_FAULT|8) /* internal stack error */
134 #define ILL_BADIADDR (__SI_FAULT|9) /* unimplemented instruction address */
135 #define __ILL_BREAK (__SI_FAULT|10) /* illegal break */
136 #define NSIGILL 10
137
138 /*
139 * SIGFPE si_codes
140 */
141 #define FPE_INTDIV (__SI_FAULT|1) /* integer divide by zero */
142 #define FPE_INTOVF (__SI_FAULT|2) /* integer overflow */
143 #define FPE_FLTDIV (__SI_FAULT|3) /* floating point divide by zero */
144 #define FPE_FLTOVF (__SI_FAULT|4) /* floating point overflow */
145 #define FPE_FLTUND (__SI_FAULT|5) /* floating point underflow */
146 #define FPE_FLTRES (__SI_FAULT|6) /* floating point inexact result */
147 #define FPE_FLTINV (__SI_FAULT|7) /* floating point invalid operation */
148 #define FPE_FLTSUB (__SI_FAULT|8) /* subscript out of range */
149 #define __FPE_DECOVF (__SI_FAULT|9) /* decimal overflow */
150 #define __FPE_DECDIV (__SI_FAULT|10) /* decimal division by zero */
151 #define __FPE_DECERR (__SI_FAULT|11) /* packed decimal error */
152 #define __FPE_INVASC (__SI_FAULT|12) /* invalid ASCII digit */
153 #define __FPE_INVDEC (__SI_FAULT|13) /* invalid decimal digit */
154 #define NSIGFPE 13
155
156 /*
157 * SIGSEGV si_codes
158 */
159 #define SEGV_MAPERR (__SI_FAULT|1) /* address not mapped to object */
160 #define SEGV_ACCERR (__SI_FAULT|2) /* invalid permissions for mapped object */
161 #define __SEGV_PSTKOVF (__SI_FAULT|3) /* paragraph stack overflow */
162 #define NSIGSEGV 3
163
164 /*
165 * SIGBUS si_codes
166 */
167 #define BUS_ADRALN (__SI_FAULT|1) /* invalid address alignment */
168 #define BUS_ADRERR (__SI_FAULT|2) /* non-existant physical address */
169 #define BUS_OBJERR (__SI_FAULT|3) /* object specific hardware error */
170 #define NSIGBUS 3
171
172 /*
173 * SIGTRAP si_codes
174 */
175 #define TRAP_BRKPT (__SI_FAULT|1) /* process breakpoint */
176 #define TRAP_TRACE (__SI_FAULT|2) /* process trace trap */
177 #define TRAP_BRANCH (__SI_FAULT|3) /* process taken branch trap */
178 #define TRAP_HWBKPT (__SI_FAULT|4) /* hardware breakpoint or watchpoint */
179 #define NSIGTRAP 4
180
181 /*
182 * SIGCHLD si_codes
183 */
184 #define CLD_EXITED (__SI_CHLD|1) /* child has exited */
185 #define CLD_KILLED (__SI_CHLD|2) /* child was killed */
186 #define CLD_DUMPED (__SI_CHLD|3) /* child terminated abnormally */
187 #define CLD_TRAPPED (__SI_CHLD|4) /* traced child has trapped */
188 #define CLD_STOPPED (__SI_CHLD|5) /* child has stopped */
189 #define CLD_CONTINUED (__SI_CHLD|6) /* stopped child has continued */
190 #define NSIGCHLD 6
191
192 /*
193 * SIGPOLL si_codes
194 */
195 #define POLL_IN (__SI_POLL|1) /* data input available */
196 #define POLL_OUT (__SI_POLL|2) /* output buffers available */
197 #define POLL_MSG (__SI_POLL|3) /* input message available */
198 #define POLL_ERR (__SI_POLL|4) /* i/o error */
199 #define POLL_PRI (__SI_POLL|5) /* high priority input available */
200 #define POLL_HUP (__SI_POLL|6) /* device disconnected */
201 #define NSIGPOLL 6
202
203 /*
204 * sigevent definitions
205 *
206 * It seems likely that SIGEV_THREAD will have to be handled from
207 * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
208 * thread manager then catches and does the appropriate nonsense.
209 * However, everything is written out here so as to not get lost.
210 */
211 #define SIGEV_SIGNAL 0 /* notify via signal */
212 #define SIGEV_NONE 1 /* other notification: meaningless */
213 #define SIGEV_THREAD 2 /* deliver via thread creation */
214
215 #define SIGEV_MAX_SIZE 64
216 #define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 4)
217
218 typedef struct sigevent {
219 sigval_t sigev_value;
220 int sigev_signo;
221 int sigev_notify;
222 union {
223 int _pad[SIGEV_PAD_SIZE];
224
225 struct {
226 void (*_function)(sigval_t);
227 void *_attribute; /* really pthread_attr_t */
228 } _sigev_thread;
229 } _sigev_un;
230 } sigevent_t;
231
232 #define sigev_notify_function _sigev_un._sigev_thread._function
233 #define sigev_notify_attributes _sigev_un._sigev_thread._attribute
234
235 #ifdef __KERNEL__
236 #include <linux/string.h>
237
238 static inline void
239 copy_siginfo (siginfo_t *to, siginfo_t *from)
240 {
241 if (from->si_code < 0)
242 memcpy(to, from, sizeof(siginfo_t));
243 else
244 /* _sigchld is currently the largest know union member */
245 memcpy(to, from, 3*sizeof(int) + sizeof(from->_sifields._sigchld));
246 }
247
248 extern int copy_siginfo_to_user(siginfo_t *to, siginfo_t *from);
249
250 #endif /* __KERNEL__ */
251
252 #endif /* _ASM_IA64_SIGINFO_H */
253
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