FreeBSD/Linux Kernel Cross Reference
sys/sys/siginfo.h
1 /* $NetBSD: siginfo.h,v 1.14 2005/12/11 12:25:21 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 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39 #ifndef _SYS_SIGINFO_H_
40 #define _SYS_SIGINFO_H_
41
42 #include <machine/signal.h> /* XXX: __HAVE_SIGINFO */
43 #ifdef _KERNEL
44 #include <sys/queue.h>
45 #endif
46
47 typedef union sigval {
48 int sival_int;
49 void *sival_ptr;
50 } sigval_t;
51
52 struct _ksiginfo {
53 int _signo;
54 int _code;
55 int _errno;
56 #ifdef _LP64
57 /* In _LP64 the union starts on an 8-byte boundary. */
58 int _pad;
59 #endif
60 union {
61 struct {
62 pid_t _pid;
63 uid_t _uid;
64 sigval_t _sigval;
65 } _rt;
66
67 struct {
68 pid_t _pid;
69 uid_t _uid;
70 int _status;
71 clock_t _utime;
72 clock_t _stime;
73 } _child;
74
75 struct {
76 void *_addr;
77 int _trap;
78 } _fault;
79
80 struct {
81 long _band;
82 int _fd;
83 } _poll;
84 } _reason;
85 };
86
87 #ifdef _KERNEL
88 typedef struct ksiginfo {
89 u_long ksi_flags; /* 4 or 8 bytes, depending on LP64 */
90 CIRCLEQ_ENTRY(ksiginfo) ksi_list;
91 struct _ksiginfo ksi_info;
92 } ksiginfo_t;
93
94 #define KSI_TRAP 0x01 /* signal caused by trap */
95 #define KSI_EMPTY 0x02 /* no additional information */
96
97 /* Macros to initialize a ksiginfo_t. */
98 #define KSI_INIT(ksi) \
99 do { \
100 memset((ksi), 0, sizeof(*(ksi))); \
101 } while (/*CONSTCOND*/0)
102
103 #define KSI_INIT_EMPTY(ksi) \
104 do { \
105 KSI_INIT((ksi)); \
106 (ksi)->ksi_flags = KSI_EMPTY; \
107 } while (/*CONSTCOND*/0)
108
109 #define KSI_INIT_TRAP(ksi) \
110 do { \
111 KSI_INIT((ksi)); \
112 (ksi)->ksi_flags = KSI_TRAP; \
113 } while (/*CONSTCOND*/0)
114
115 /* Copy the part of ksiginfo_t without the queue pointers */
116 #define KSI_COPY(fksi, tksi) \
117 do { \
118 (tksi)->ksi_info = (fksi)->ksi_info; \
119 (tksi)->ksi_flags = (fksi)->ksi_flags; \
120 } while (/*CONSTCOND*/0)
121
122
123 /* Predicate macros to test how a ksiginfo_t was generated. */
124 #define KSI_TRAP_P(ksi) (((ksi)->ksi_flags & KSI_TRAP) != 0)
125 #define KSI_EMPTY_P(ksi) (((ksi)->ksi_flags & KSI_EMPTY) != 0)
126
127 /*
128 * Old-style signal handler "code" arguments were only non-zero for
129 * signals caused by traps.
130 */
131 #define KSI_TRAPCODE(ksi) (KSI_TRAP_P(ksi) ? (ksi)->ksi_trap : 0)
132 #endif /* _KERNEL */
133
134 typedef union siginfo {
135 char si_pad[128]; /* Total size; for future expansion */
136 struct _ksiginfo _info;
137 } siginfo_t;
138
139 /** Field access macros */
140 #define si_signo _info._signo
141 #define si_code _info._code
142 #define si_errno _info._errno
143
144 #define si_sigval _info._reason._rt._sigval
145 #define si_pid _info._reason._child._pid
146 #define si_uid _info._reason._child._uid
147 #define si_status _info._reason._child._status
148 #define si_utime _info._reason._child._utime
149 #define si_stime _info._reason._child._stime
150
151 #define si_addr _info._reason._fault._addr
152 #define si_trap _info._reason._fault._trap
153
154 #define si_band _info._reason._poll._band
155 #define si_fd _info._reason._poll._fd
156
157 #ifdef _KERNEL
158 /** Field access macros */
159 #define ksi_signo ksi_info._signo
160 #define ksi_code ksi_info._code
161 #define ksi_errno ksi_info._errno
162
163 #define ksi_sigval ksi_info._reason._rt._sigval
164 #define ksi_pid ksi_info._reason._child._pid
165 #define ksi_uid ksi_info._reason._child._uid
166 #define ksi_status ksi_info._reason._child._status
167 #define ksi_utime ksi_info._reason._child._utime
168 #define ksi_stime ksi_info._reason._child._stime
169
170 #define ksi_addr ksi_info._reason._fault._addr
171 #define ksi_trap ksi_info._reason._fault._trap
172
173 #define ksi_band ksi_info._reason._poll._band
174 #define ksi_fd ksi_info._reason._poll._fd
175 #endif /* _KERNEL */
176
177 /** si_code */
178 /* SIGILL */
179 #define ILL_ILLOPC 1 /* Illegal opcode */
180 #define ILL_ILLOPN 2 /* Illegal operand */
181 #define ILL_ILLADR 3 /* Illegal addressing mode */
182 #define ILL_ILLTRP 4 /* Illegal trap */
183 #define ILL_PRVOPC 5 /* Privileged opcode */
184 #define ILL_PRVREG 6 /* Privileged register */
185 #define ILL_COPROC 7 /* Coprocessor error */
186 #define ILL_BADSTK 8 /* Internal stack error */
187
188 /* SIGFPE */
189 #define FPE_INTDIV 1 /* Integer divide by zero */
190 #define FPE_INTOVF 2 /* Integer overflow */
191 #define FPE_FLTDIV 3 /* Floating point divide by zero */
192 #define FPE_FLTOVF 4 /* Floating point overflow */
193 #define FPE_FLTUND 5 /* Floating point underflow */
194 #define FPE_FLTRES 6 /* Floating point inexact result */
195 #define FPE_FLTINV 7 /* Invalid Floating point operation */
196 #define FPE_FLTSUB 8 /* Subscript out of range */
197
198 /* SIGSEGV */
199 #define SEGV_MAPERR 1 /* Address not mapped to object */
200 #define SEGV_ACCERR 2 /* Invalid permissions for mapped object*/
201
202 /* SIGBUS */
203 #define BUS_ADRALN 1 /* Invalid address alignment */
204 #define BUS_ADRERR 2 /* Non-existent physical address */
205 #define BUS_OBJERR 3 /* Object specific hardware error */
206
207 /* SIGTRAP */
208 #define TRAP_BRKPT 1 /* Process breakpoint */
209 #define TRAP_TRACE 2 /* Process trace trap */
210
211 /* SIGCHLD */
212 #define CLD_EXITED 1 /* Child has exited */
213 #define CLD_KILLED 2 /* Child has terminated abnormally but */
214 /* did not create a core file */
215 #define CLD_DUMPED 3 /* Child has terminated abnormally and */
216 /* created a core file */
217 #define CLD_TRAPPED 4 /* Traced child has trapped */
218 #define CLD_STOPPED 5 /* Child has stopped */
219 #define CLD_CONTINUED 6 /* Stopped child has continued */
220
221 /* SIGPOLL */
222 #define POLL_IN 1 /* Data input available */
223 #define POLL_OUT 2 /* Output buffers available */
224 #define POLL_MSG 3 /* Input message available */
225 #define POLL_ERR 4 /* I/O Error */
226 #define POLL_PRI 5 /* High priority input available */
227 #define POLL_HUP 4 /* Device disconnected */
228
229
230 /** si_code */
231 #define SI_NOINFO 32767 /* No signal specific info available */
232 #define SI_USER 0 /* Sent by kill(2) */
233 #define SI_QUEUE -1 /* Sent by the sigqueue(2) */
234 #define SI_TIMER -2 /* Generated by expiration of a timer */
235 /* set by timer_settime(2) */
236 #define SI_ASYNCIO -3 /* Generated by completion of an */
237 /* asynchronous I/O signal */
238 #define SI_MESGQ -4 /* Generated by arrival of a message on */
239 /* an empty message queue */
240
241 #endif /* !_SYS_SIGINFO_H_ */
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