1 /* $Id: siginfo.h,v 1.8 2000/05/27 00:49:37 davem Exp $
2 * siginfo.c:
3 */
4
5 #ifndef _SPARC_SIGINFO_H
6 #define _SPARC_SIGINFO_H
7
8 #include <linux/types.h>
9
10 typedef union sigval {
11 int sival_int;
12 void *sival_ptr;
13 } sigval_t;
14
15 #define SI_MAX_SIZE 128
16 #define SI_PAD_SIZE ((SI_MAX_SIZE/sizeof(int)) - 3)
17
18 typedef struct siginfo {
19 int si_signo;
20 int si_errno;
21 int si_code;
22
23 union {
24 int _pad[SI_PAD_SIZE];
25
26 /* kill() */
27 struct {
28 pid_t _pid; /* sender's pid */
29 unsigned int _uid; /* sender's uid */
30 } _kill;
31
32 /* POSIX.1b timers */
33 struct {
34 unsigned int _timer1;
35 unsigned int _timer2;
36 } _timer;
37
38 /* POSIX.1b signals */
39 struct {
40 pid_t _pid; /* sender's pid */
41 unsigned int _uid; /* sender's uid */
42 sigval_t _sigval;
43 } _rt;
44
45 /* SIGCHLD */
46 struct {
47 pid_t _pid; /* which child */
48 unsigned int _uid; /* sender's uid */
49 int _status; /* exit code */
50 clock_t _utime;
51 clock_t _stime;
52 } _sigchld;
53
54 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGEMT */
55 struct {
56 void *_addr; /* faulting insn/memory ref. */
57 int _trapno; /* TRAP # which caused the signal */
58 } _sigfault;
59
60 /* SIGPOLL */
61 struct {
62 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
63 int _fd;
64 } _sigpoll;
65 } _sifields;
66 } siginfo_t;
67
68 /*
69 * How these fields are to be accessed.
70 */
71 #define si_pid _sifields._kill._pid
72 #define si_uid _sifields._kill._uid
73 #define si_status _sifields._sigchld._status
74 #define si_utime _sifields._sigchld._utime
75 #define si_stime _sifields._sigchld._stime
76 #define si_value _sifields._rt._sigval
77 #define si_int _sifields._rt._sigval.sival_int
78 #define si_ptr _sifields._rt._sigval.sival_ptr
79 #define si_addr _sifields._sigfault._addr
80 #define si_trapno _sifields._sigfault._trapno
81 #define si_band _sifields._sigpoll._band
82 #define si_fd _sifields._sigpoll._fd
83
84 #ifdef __KERNEL__
85 #define __SI_MASK 0xffff0000
86 #define __SI_KILL (0 << 16)
87 #define __SI_TIMER (1 << 16)
88 #define __SI_POLL (2 << 16)
89 #define __SI_FAULT (3 << 16)
90 #define __SI_CHLD (4 << 16)
91 #define __SI_RT (5 << 16)
92 #define __SI_CODE(T,N) ((T) << 16 | ((N) & 0xffff))
93 #else
94 #define __SI_KILL 0
95 #define __SI_TIMER 0
96 #define __SI_POLL 0
97 #define __SI_FAULT 0
98 #define __SI_CHLD 0
99 #define __SI_RT 0
100 #define __SI_CODE(T,N) (N)
101 #endif
102
103 /*
104 * si_code values
105 * Digital reserves positive values for kernel-generated signals.
106 */
107 #define SI_NOINFO 32767 /* no information in siginfo_t */
108 #define SI_USER 0 /* sent by kill, sigsend, raise */
109 #define SI_KERNEL 0x80 /* sent by the kernel from somewhere */
110 #define SI_QUEUE -1 /* sent by sigqueue */
111 #define SI_TIMER __SI_CODE(__SI_TIMER,-2) /* sent by timer expiration */
112 #define SI_MESGQ -3 /* sent by real time mesq state change */
113 #define SI_ASYNCIO -4 /* sent by AIO completion */
114 #define SI_SIGIO -5 /* sent by queued SIGIO */
115
116 #define SI_FROMUSER(siptr) ((siptr)->si_code <= 0)
117 #define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0)
118
119 /*
120 * SIGILL si_codes
121 */
122 #define ILL_ILLOPC (__SI_FAULT|1) /* illegal opcode */
123 #define ILL_ILLOPN (__SI_FAULT|2) /* illegal operand */
124 #define ILL_ILLADR (__SI_FAULT|3) /* illegal addressing mode */
125 #define ILL_ILLTRP (__SI_FAULT|4) /* illegal trap */
126 #define ILL_PRVOPC (__SI_FAULT|5) /* privileged opcode */
127 #define ILL_PRVREG (__SI_FAULT|6) /* privileged register */
128 #define ILL_COPROC (__SI_FAULT|7) /* coprocessor error */
129 #define ILL_BADSTK (__SI_FAULT|8) /* internal stack error */
130 #define NSIGILL 8
131
132 /*
133 * SIGFPE si_codes
134 */
135 #define FPE_INTDIV (__SI_FAULT|1) /* integer divide by zero */
136 #define FPE_INTOVF (__SI_FAULT|2) /* integer overflow */
137 #define FPE_FLTDIV (__SI_FAULT|3) /* floating point divide by zero */
138 #define FPE_FLTOVF (__SI_FAULT|4) /* floating point overflow */
139 #define FPE_FLTUND (__SI_FAULT|5) /* floating point underflow */
140 #define FPE_FLTRES (__SI_FAULT|6) /* floating point inexact result */
141 #define FPE_FLTINV (__SI_FAULT|7) /* floating point invalid operation */
142 #define FPE_FLTSUB (__SI_FAULT|8) /* subscript out of range */
143 #define NSIGFPE 8
144
145 /*
146 * SIGSEGV si_codes
147 */
148 #define SEGV_MAPERR (__SI_FAULT|1) /* address not mapped to object */
149 #define SEGV_ACCERR (__SI_FAULT|2) /* invalid permissions for mapped object */
150 #define NSIGSEGV 2
151
152 /*
153 * SIGBUS si_codes
154 */
155 #define BUS_ADRALN (__SI_FAULT|1) /* invalid address alignment */
156 #define BUS_ADRERR (__SI_FAULT|2) /* non-existant physical address */
157 #define BUS_OBJERR (__SI_FAULT|3) /* object specific hardware error */
158 #define NSIGBUS 3
159
160 /*
161 * SIGTRAP si_codes
162 */
163 #define TRAP_BRKPT (__SI_FAULT|1) /* process breakpoint */
164 #define TRAP_TRACE (__SI_FAULT|2) /* process trace trap */
165 #define NSIGTRAP 2
166
167 /*
168 * SIGCHLD si_codes
169 */
170 #define CLD_EXITED (__SI_CHLD|1) /* child has exited */
171 #define CLD_KILLED (__SI_CHLD|2) /* child was killed */
172 #define CLD_DUMPED (__SI_CHLD|3) /* child terminated abnormally */
173 #define CLD_TRAPPED (__SI_CHLD|4) /* traced child has trapped */
174 #define CLD_STOPPED (__SI_CHLD|5) /* child has stopped */
175 #define CLD_CONTINUED (__SI_CHLD|6) /* stopped child has continued */
176 #define NSIGCHLD 6
177
178 /*
179 * SIGPOLL si_codes
180 */
181 #define POLL_IN (__SI_POLL|1) /* data input available */
182 #define POLL_OUT (__SI_POLL|2) /* output buffers available */
183 #define POLL_MSG (__SI_POLL|3) /* input message available */
184 #define POLL_ERR (__SI_POLL|4) /* i/o error */
185 #define POLL_PRI (__SI_POLL|5) /* high priority input available */
186 #define POLL_HUP (__SI_POLL|6) /* device disconnected */
187 #define NSIGPOLL 6
188
189 /*
190 * SIGEMT si_codes
191 */
192 #define EMT_TAGOVF (__SI_FAULT|1) /* tag overflow */
193 #define NSIGEMT 1
194
195 /*
196 * sigevent definitions
197 *
198 * It seems likely that SIGEV_THREAD will have to be handled from
199 * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
200 * thread manager then catches and does the appropriate nonsense.
201 * However, everything is written out here so as to not get lost.
202 */
203 #define SIGEV_SIGNAL 0 /* notify via signal */
204 #define SIGEV_NONE 1 /* other notification: meaningless */
205 #define SIGEV_THREAD 2 /* deliver via thread creation */
206
207 #define SIGEV_MAX_SIZE 64
208 #define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
209
210 typedef struct sigevent {
211 sigval_t sigev_value;
212 int sigev_signo;
213 int sigev_notify;
214 union {
215 int _pad[SIGEV_PAD_SIZE];
216
217 struct {
218 void (*_function)(sigval_t);
219 void *_attribute; /* really pthread_attr_t */
220 } _sigev_thread;
221 } _sigev_un;
222 } sigevent_t;
223
224 #ifdef __KERNEL__
225
226 #include <linux/string.h>
227
228 extern inline void copy_siginfo(siginfo_t *to, siginfo_t *from)
229 {
230 if (from->si_code < 0)
231 *to = *from;
232 else
233 /* _sigchld is currently the largest know union member */
234 memcpy(to, from, 3*sizeof(int) + sizeof(from->_sifields._sigchld));
235 }
236
237 extern int copy_siginfo_to_user(siginfo_t *to, siginfo_t *from);
238
239 #endif /* __KERNEL__ */
240
241 #define sigev_notify_function _sigev_un._sigev_thread._function
242 #define sigev_notify_attributes _sigev_un._sigev_thread._attribute
243
244 #endif /* !(_SPARC_SIGINFO_H) */
245
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