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