1 | /* $NetBSD: siginfo.h,v 1.25 2013/11/22 21:04:11 christos Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2002 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Christos Zoulas. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | #ifndef _SYS_SIGINFO_H_ |
33 | #define _SYS_SIGINFO_H_ |
34 | |
35 | #include <machine/signal.h> |
36 | #include <sys/featuretest.h> |
37 | #ifdef _KERNEL |
38 | #include <sys/queue.h> |
39 | #endif |
40 | |
41 | typedef union sigval { |
42 | int sival_int; |
43 | void *sival_ptr; |
44 | } sigval_t; |
45 | |
46 | struct _ksiginfo { |
47 | int _signo; |
48 | int _code; |
49 | int _errno; |
50 | #ifdef _LP64 |
51 | /* In _LP64 the union starts on an 8-byte boundary. */ |
52 | int _pad; |
53 | #endif |
54 | union { |
55 | struct { |
56 | pid_t _pid; |
57 | uid_t _uid; |
58 | sigval_t _value; |
59 | } _rt; |
60 | |
61 | struct { |
62 | pid_t _pid; |
63 | uid_t _uid; |
64 | int _status; |
65 | clock_t _utime; |
66 | clock_t _stime; |
67 | } _child; |
68 | |
69 | struct { |
70 | void *_addr; |
71 | int _trap; |
72 | int _trap2; |
73 | int _trap3; |
74 | } _fault; |
75 | |
76 | struct { |
77 | long _band; |
78 | int _fd; |
79 | } _poll; |
80 | } _reason; |
81 | }; |
82 | |
83 | #ifdef _KERNEL |
84 | typedef struct ksiginfo { |
85 | u_long ksi_flags; /* 4 or 8 bytes (LP64) */ |
86 | TAILQ_ENTRY(ksiginfo) ksi_list; |
87 | struct _ksiginfo ksi_info; |
88 | lwpid_t ksi_lid; /* 0, or directed to LWP */ |
89 | } ksiginfo_t; |
90 | |
91 | #define KSI_TRAP 0x01 /* signal caused by trap */ |
92 | #define KSI_EMPTY 0x02 /* no additional information */ |
93 | #define KSI_QUEUED 0x04 /* on a sigpend_t queue */ |
94 | #define KSI_FROMPOOL 0x08 /* allocated from the ksiginfo pool */ |
95 | |
96 | /* Macros to initialize a ksiginfo_t. */ |
97 | #define KSI_INIT(ksi) \ |
98 | do { \ |
99 | memset((ksi), 0, sizeof(*(ksi))); \ |
100 | } while (/*CONSTCOND*/0) |
101 | |
102 | #define KSI_INIT_EMPTY(ksi) \ |
103 | do { \ |
104 | KSI_INIT((ksi)); \ |
105 | (ksi)->ksi_flags = KSI_EMPTY; \ |
106 | } while (/*CONSTCOND*/0) |
107 | |
108 | #define KSI_INIT_TRAP(ksi) \ |
109 | do { \ |
110 | KSI_INIT((ksi)); \ |
111 | (ksi)->ksi_flags = KSI_TRAP; \ |
112 | } while (/*CONSTCOND*/0) |
113 | |
114 | /* Copy the part of ksiginfo_t without the queue pointers */ |
115 | #define KSI_COPY(fksi, tksi) \ |
116 | do { \ |
117 | (tksi)->ksi_info = (fksi)->ksi_info; \ |
118 | (tksi)->ksi_flags = (fksi)->ksi_flags; \ |
119 | } while (/*CONSTCOND*/0) |
120 | |
121 | |
122 | /* Predicate macros to test how a ksiginfo_t was generated. */ |
123 | #define KSI_TRAP_P(ksi) (((ksi)->ksi_flags & KSI_TRAP) != 0) |
124 | #define KSI_EMPTY_P(ksi) (((ksi)->ksi_flags & KSI_EMPTY) != 0) |
125 | |
126 | /* |
127 | * Old-style signal handler "code" arguments were only non-zero for |
128 | * signals caused by traps. |
129 | */ |
130 | #define KSI_TRAPCODE(ksi) (KSI_TRAP_P(ksi) ? (ksi)->ksi_trap : 0) |
131 | #endif /* _KERNEL */ |
132 | |
133 | typedef union siginfo { |
134 | char si_pad[128]; /* Total size; for future expansion */ |
135 | struct _ksiginfo _info; |
136 | } siginfo_t; |
137 | |
138 | /** Field access macros */ |
139 | #define si_signo _info._signo |
140 | #define si_code _info._code |
141 | #define si_errno _info._errno |
142 | |
143 | #define si_value _info._reason._rt._value |
144 | #define si_pid _info._reason._child._pid |
145 | #define si_uid _info._reason._child._uid |
146 | #define si_status _info._reason._child._status |
147 | #define si_utime _info._reason._child._utime |
148 | #define si_stime _info._reason._child._stime |
149 | |
150 | #define si_addr _info._reason._fault._addr |
151 | #define si_trap _info._reason._fault._trap |
152 | #define si_trap2 _info._reason._fault._trap2 |
153 | #define si_trap3 _info._reason._fault._trap3 |
154 | |
155 | #define si_band _info._reason._poll._band |
156 | #define si_fd _info._reason._poll._fd |
157 | |
158 | #ifdef _KERNEL |
159 | /** Field access macros */ |
160 | #define ksi_signo ksi_info._signo |
161 | #define ksi_code ksi_info._code |
162 | #define ksi_errno ksi_info._errno |
163 | |
164 | #define ksi_value ksi_info._reason._rt._value |
165 | #define ksi_pid ksi_info._reason._child._pid |
166 | #define ksi_uid ksi_info._reason._child._uid |
167 | #define ksi_status ksi_info._reason._child._status |
168 | #define ksi_utime ksi_info._reason._child._utime |
169 | #define ksi_stime ksi_info._reason._child._stime |
170 | |
171 | #define ksi_addr ksi_info._reason._fault._addr |
172 | #define ksi_trap ksi_info._reason._fault._trap |
173 | #define ksi_trap2 ksi_info._reason._fault._trap2 |
174 | #define ksi_trap3 ksi_info._reason._fault._trap3 |
175 | |
176 | #define ksi_band ksi_info._reason._poll._band |
177 | #define ksi_fd ksi_info._reason._poll._fd |
178 | #endif /* _KERNEL */ |
179 | |
180 | /** si_code */ |
181 | /* SIGILL */ |
182 | #define ILL_ILLOPC 1 /* Illegal opcode */ |
183 | #define ILL_ILLOPN 2 /* Illegal operand */ |
184 | #define ILL_ILLADR 3 /* Illegal addressing mode */ |
185 | #define ILL_ILLTRP 4 /* Illegal trap */ |
186 | #define ILL_PRVOPC 5 /* Privileged opcode */ |
187 | #define ILL_PRVREG 6 /* Privileged register */ |
188 | #define ILL_COPROC 7 /* Coprocessor error */ |
189 | #define ILL_BADSTK 8 /* Internal stack error */ |
190 | |
191 | /* SIGFPE */ |
192 | #define FPE_INTDIV 1 /* Integer divide by zero */ |
193 | #define FPE_INTOVF 2 /* Integer overflow */ |
194 | #define FPE_FLTDIV 3 /* Floating point divide by zero */ |
195 | #define FPE_FLTOVF 4 /* Floating point overflow */ |
196 | #define FPE_FLTUND 5 /* Floating point underflow */ |
197 | #define FPE_FLTRES 6 /* Floating point inexact result */ |
198 | #define FPE_FLTINV 7 /* Invalid Floating point operation */ |
199 | #define FPE_FLTSUB 8 /* Subscript out of range */ |
200 | |
201 | /* SIGSEGV */ |
202 | #define SEGV_MAPERR 1 /* Address not mapped to object */ |
203 | #define SEGV_ACCERR 2 /* Invalid permissions for mapped object*/ |
204 | |
205 | /* SIGBUS */ |
206 | #define BUS_ADRALN 1 /* Invalid address alignment */ |
207 | #define BUS_ADRERR 2 /* Non-existent physical address */ |
208 | #define BUS_OBJERR 3 /* Object specific hardware error */ |
209 | |
210 | /* SIGTRAP */ |
211 | #define TRAP_BRKPT 1 /* Process breakpoint */ |
212 | #define TRAP_TRACE 2 /* Process trace trap */ |
213 | |
214 | /* SIGCHLD */ |
215 | #define CLD_EXITED 1 /* Child has exited */ |
216 | #define CLD_KILLED 2 /* Child has terminated abnormally but */ |
217 | /* did not create a core file */ |
218 | #define CLD_DUMPED 3 /* Child has terminated abnormally and */ |
219 | /* created a core file */ |
220 | #define CLD_TRAPPED 4 /* Traced child has trapped */ |
221 | #define CLD_STOPPED 5 /* Child has stopped */ |
222 | #define CLD_CONTINUED 6 /* Stopped child has continued */ |
223 | |
224 | /* SIGPOLL */ |
225 | #define POLL_IN 1 /* Data input available */ |
226 | #define POLL_OUT 2 /* Output buffers available */ |
227 | #define POLL_MSG 3 /* Input message available */ |
228 | #define POLL_ERR 4 /* I/O Error */ |
229 | #define POLL_PRI 5 /* High priority input available */ |
230 | #define POLL_HUP 6 /* Device disconnected */ |
231 | |
232 | |
233 | /** si_code */ |
234 | #define SI_USER 0 /* Sent by kill(2) */ |
235 | #define SI_QUEUE -1 /* Sent by the sigqueue(2) */ |
236 | #define SI_TIMER -2 /* Generated by expiration of a timer */ |
237 | /* set by timer_settime(2) */ |
238 | #define SI_ASYNCIO -3 /* Generated by completion of an */ |
239 | /* asynchronous I/O signal */ |
240 | #define SI_MESGQ -4 /* Generated by arrival of a message on */ |
241 | /* an empty message queue */ |
242 | #if defined(_KERNEL) || defined(_NETBSD_SOURCE) |
243 | #define SI_LWP -5 /* Generated by _lwp_kill(2) */ |
244 | #define SI_NOINFO 32767 /* No signal specific info available */ |
245 | #endif |
246 | |
247 | #endif /* !_SYS_SIGINFO_H_ */ |
248 | |