1 #ifndef _PPC64_SIGINFO_H
2 #define _PPC64_SIGINFO_H
3
4 /* Copied from i386 from alpha. */
5 /*
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
12 #include <linux/types.h>
13
14 typedef union sigval {
15 int sival_int;
16 void *sival_ptr;
17 } sigval_t;
18
19 #define SI_MAX_SIZE 128
20 #define SI_PAD_SIZE ((SI_MAX_SIZE/sizeof(int)) - 4)
21 #define SI_PAD_SIZE32 ((SI_MAX_SIZE/sizeof(int)) - 3)
22
23 typedef struct siginfo {
24 int si_signo;
25 int si_errno;
26 int si_code;
27
28 union {
29 int _pad[SI_PAD_SIZE];
30
31 /* kill() */
32 struct {
33 pid_t _pid; /* sender's pid */
34 uid_t _uid; /* sender's uid */
35 } _kill;
36
37 /* POSIX.1b timers */
38 struct {
39 unsigned int _timer1;
40 unsigned int _timer2;
41 } _timer;
42
43 /* POSIX.1b signals */
44 struct {
45 pid_t _pid; /* sender's pid */
46 uid_t _uid; /* sender's uid */
47 sigval_t _sigval;
48 } _rt;
49
50 /* SIGCHLD */
51 struct {
52 pid_t _pid; /* which child */
53 uid_t _uid; /* sender's uid */
54 int _status; /* exit code */
55 clock_t _utime;
56 clock_t _stime;
57 } _sigchld;
58
59 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
60 struct {
61 void *_addr; /* faulting insn/memory ref. */
62 } _sigfault;
63
64 /* SIGPOLL */
65 struct {
66 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
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_band _sifields._sigpoll._band
85 #define si_fd _sifields._sigpoll._fd
86
87 #ifdef __KERNEL__
88 #define __SI_MASK 0xffff0000
89 #define __SI_KILL (0 << 16)
90 #define __SI_TIMER (1 << 16)
91 #define __SI_POLL (2 << 16)
92 #define __SI_FAULT (3 << 16)
93 #define __SI_CHLD (4 << 16)
94 #define __SI_RT (5 << 16)
95 #define __SI_CODE(T,N) ((T) << 16 | ((N) & 0xffff))
96 #else
97 #define __SI_KILL 0
98 #define __SI_TIMER 0
99 #define __SI_POLL 0
100 #define __SI_FAULT 0
101 #define __SI_CHLD 0
102 #define __SI_RT 0
103 #define __SI_CODE(T,N) (N)
104 #endif
105
106 /*
107 * si_code values
108 * Digital reserves positive values for kernel-generated signals.
109 */
110 #define SI_USER 0 /* sent by kill, sigsend, raise */
111 #define SI_KERNEL 0x80 /* sent by the kernel from somewhere */
112 #define SI_QUEUE -1 /* sent by sigqueue */
113 #define SI_TIMER __SI_CODE(__SI_TIMER,-2) /* sent by timer expiration */
114 #define SI_MESGQ -3 /* sent by real time mesq state change */
115 #define SI_ASYNCIO -4 /* sent by AIO completion */
116 #define SI_SIGIO -5 /* sent by queued SIGIO */
117 #define SI_TKILL -6 /* sent by tkill system call */
118 #define SI_DETHREAD -7 /* sent by execve() killing subsidiary threads */
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 NSIGILL 8
135
136 /*
137 * SIGFPE si_codes
138 */
139 #define FPE_INTDIV (__SI_FAULT|1) /* integer divide by zero */
140 #define FPE_INTOVF (__SI_FAULT|2) /* integer overflow */
141 #define FPE_FLTDIV (__SI_FAULT|3) /* floating point divide by zero */
142 #define FPE_FLTOVF (__SI_FAULT|4) /* floating point overflow */
143 #define FPE_FLTUND (__SI_FAULT|5) /* floating point underflow */
144 #define FPE_FLTRES (__SI_FAULT|6) /* floating point inexact result */
145 #define FPE_FLTINV (__SI_FAULT|7) /* floating point invalid operation */
146 #define FPE_FLTSUB (__SI_FAULT|8) /* subscript out of range */
147 #define NSIGFPE 8
148
149 /*
150 * SIGSEGV si_codes
151 */
152 #define SEGV_MAPERR (__SI_FAULT|1) /* address not mapped to object */
153 #define SEGV_ACCERR (__SI_FAULT|2) /* invalid permissions for mapped object */
154 #define NSIGSEGV 2
155
156 /*
157 * SIGBUS si_codes
158 */
159 #define BUS_ADRALN (__SI_FAULT|1) /* invalid address alignment */
160 #define BUS_ADRERR (__SI_FAULT|2) /* non-existant physical address */
161 #define BUS_OBJERR (__SI_FAULT|3) /* object specific hardware error */
162 #define NSIGBUS 3
163
164 /*
165 * SIGTRAP si_codes
166 */
167 #define TRAP_BRKPT (__SI_FAULT|1) /* process breakpoint */
168 #define TRAP_TRACE (__SI_FAULT|2) /* process trace trap */
169 #define NSIGTRAP 2
170
171 /*
172 * SIGCHLD si_codes
173 */
174 #define CLD_EXITED (__SI_CHLD|1) /* child has exited */
175 #define CLD_KILLED (__SI_CHLD|2) /* child was killed */
176 #define CLD_DUMPED (__SI_CHLD|3) /* child terminated abnormally */
177 #define CLD_TRAPPED (__SI_CHLD|4) /* traced child has trapped */
178 #define CLD_STOPPED (__SI_CHLD|5) /* child has stopped */
179 #define CLD_CONTINUED (__SI_CHLD|6) /* stopped child has continued */
180 #define NSIGCHLD 6
181
182 /*
183 * SIGPOLL si_codes
184 */
185 #define POLL_IN (__SI_POLL|1) /* data input available */
186 #define POLL_OUT (__SI_POLL|2) /* output buffers available */
187 #define POLL_MSG (__SI_POLL|3) /* input message available */
188 #define POLL_ERR (__SI_POLL|4) /* i/o error */
189 #define POLL_PRI (__SI_POLL|5) /* high priority input available */
190 #define POLL_HUP (__SI_POLL|6) /* device disconnected */
191 #define NSIGPOLL 6
192
193 /*
194 * sigevent definitions
195 *
196 * It seems likely that SIGEV_THREAD will have to be handled from
197 * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the
198 * thread manager then catches and does the appropriate nonsense.
199 * However, everything is written out here so as to not get lost.
200 */
201 #define SIGEV_SIGNAL 0 /* notify via signal */
202 #define SIGEV_NONE 1 /* other notification: meaningless */
203 #define SIGEV_THREAD 2 /* deliver via thread creation */
204
205 #define SIGEV_MAX_SIZE 64
206 #define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
207
208 typedef struct sigevent {
209 sigval_t sigev_value;
210 int sigev_signo;
211 int sigev_notify;
212 union {
213 int _pad[SIGEV_PAD_SIZE];
214
215 struct {
216 void (*_function)(sigval_t);
217 void *_attribute; /* really pthread_attr_t */
218 } _sigev_thread;
219 } _sigev_un;
220 } sigevent_t;
221
222 #define sigev_notify_function _sigev_un._sigev_thread._function
223 #define sigev_notify_attributes _sigev_un._sigev_thread._attribute
224
225 #ifdef __KERNEL__
226 #include <linux/string.h>
227
copy_siginfo(siginfo_t * to,siginfo_t * from)228 static inline void copy_siginfo(siginfo_t *to, siginfo_t *from)
229 {
230 if (from->si_code < 0)
231 memcpy(to, from, sizeof(siginfo_t));
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 #endif /* _PPC64_SIGINFO_H */
242