| 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 | |