1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2004 Tim J. Robbins 5 * Copyright (c) 2001 Doug Rabson 6 * Copyright (c) 1994-1996 Søren Schmidt 7 * All rights reserved. 8 * Copyright (c) 2022 Dmitry Chagin <dchagin@FreeBSD.org> 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 * in this position and unchanged. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #ifndef _LINUX_SIGINFO_H_ 35 #define _LINUX_SIGINFO_H_ 36 37 /* 38 * si_code values 39 */ 40 #define LINUX_SI_USER 0 /* sent by kill, sigsend, raise */ 41 #define LINUX_SI_KERNEL 0x80 /* sent by the kernel from somewhere */ 42 #define LINUX_SI_QUEUE -1 /* sent by sigqueue */ 43 #define LINUX_SI_TIMER -2 /* sent by timer expiration */ 44 #define LINUX_SI_MESGQ -3 /* sent by real time mesq state change */ 45 #define LINUX_SI_ASYNCIO -4 /* sent by AIO completion */ 46 #define LINUX_SI_SIGIO -5 /* sent by queued SIGIO */ 47 #define LINUX_SI_TKILL -6 /* sent by tkill system call */ 48 49 /* 50 * SIGILL si_codes 51 */ 52 #define LINUX_ILL_ILLOPC 1 /* illegal opcode */ 53 #define LINUX_ILL_ILLOPN 2 /* illegal operand */ 54 #define LINUX_ILL_ILLADR 3 /* illegal addressing mode */ 55 #define LINUX_ILL_ILLTRP 4 /* illegal trap */ 56 #define LINUX_ILL_PRVOPC 5 /* privileged opcode */ 57 #define LINUX_ILL_PRVREG 6 /* privileged register */ 58 #define LINUX_ILL_COPROC 7 /* coprocessor error */ 59 #define LINUX_ILL_BADSTK 8 /* internal stack error */ 60 #define LINUX_ILL_BADIADDR 9 /* unimplemented instruction address */ 61 #define LINUX___ILL_BREAK 10 /* (ia64) illegal break */ 62 #define LINUX___ILL_BNDMOD 11 /* (ia64) bundle-update (modification) 63 * in progress 64 */ 65 66 /* 67 * SIGFPE si_codes 68 */ 69 #define LINUX_FPE_INTDIV 1 /* integer divide by zero */ 70 #define LINUX_FPE_INTOVF 2 /* integer overflow */ 71 #define LINUX_FPE_FLTDIV 3 /* floating point divide by zero */ 72 #define LINUX_FPE_FLTOVF 4 /* floating point overflow */ 73 #define LINUX_FPE_FLTUND 5 /* floating point underflow */ 74 #define LINUX_FPE_FLTRES 6 /* floating point inexact result */ 75 #define LINUX_FPE_FLTINV 7 /* floating point invalid operation */ 76 #define LINUX_FPE_FLTSUB 8 /* (ia64) subscript out of range */ 77 #define LINUX___FPE_DECOVF 9 /* (ia64) decimal overflow */ 78 #define LINUX___FPE_DECDIV 10 /* (ia64) decimal division by zero */ 79 #define LINUX___FPE_DECERR 11 /* (ia64) packed decimal error */ 80 #define LINUX___FPE_INVASC 12 /* (ia64) invalid ASCII digit */ 81 #define LINUX___FPE_INVDEC 13 /* (ia64) invalid decimal digit */ 82 #define LINUX_FPE_FLTUNK 14 /* undiagnosed floating-point exception */ 83 #define LINUX_FPE_CONDTRAP 15 /* trap on condition */ 84 85 /* 86 * SIGSEGV si_codes 87 */ 88 #define LINUX_SEGV_MAPERR 1 /* address not mapped to object */ 89 #define LINUX_SEGV_ACCERR 2 /* invalid permissions for mapped object */ 90 #define LINUX_SEGV_BNDERR 3 /* failed address bound checks */ 91 #ifdef __ia64__ 92 #define LINUX___SEGV_PSTKOVF 4 /* paragraph stack overflow */ 93 #else 94 #define LINUX_SEGV_PKUERR 4 /* failed protection key checks */ 95 #endif 96 #define LINUX_SEGV_ACCADI 5 /* ADI not enabled for mapped object */ 97 #define LINUX_SEGV_ADIDERR 6 /* Disrupting MCD error */ 98 #define LINUX_SEGV_ADIPERR 7 /* Precise MCD exception */ 99 #define LINUX_SEGV_MTEAERR 8 /* Asynchronous ARM MTE error */ 100 #define LINUX_SEGV_MTESERR 9 /* Synchronous ARM MTE exception */ 101 102 /* 103 * SIGBUS si_codes 104 */ 105 #define LINUX_BUS_ADRALN 1 /* invalid address alignment */ 106 #define LINUX_BUS_ADRERR 2 /* non-existent physical address */ 107 #define LINUX_BUS_OBJERR 3 /* object specific hardware error */ 108 109 #define LINUX_BUS_MCEERR_AR 4 /* hardware memory error consumed 110 * on a machine check: 111 * action required 112 */ 113 #define LINUX_BUS_MCEERR_AO 5 /* hardware memory error detected 114 * in process but not consumed: 115 * action optional 116 */ 117 118 /* 119 * SIGTRAP si_codes 120 */ 121 #define LINUX_TRAP_BRKPT 1 /* process breakpoint */ 122 #define LINUX_TRAP_TRACE 2 /* process trace trap */ 123 #define LINUX_TRAP_BRANCH 3 /* process taken branch trap */ 124 #define LINUX_TRAP_HWBKPT 4 /* hardware breakpoint/watchpoint */ 125 #define LINUX_TRAP_UNK 5 /* undiagnosed trap */ 126 #define LINUX_TRAP_PERF 6 /* perf event with sigtrap=1 */ 127 128 /* 129 * SIGCHLD si_codes 130 */ 131 #define LINUX_CLD_EXITED 1 /* child has exited */ 132 #define LINUX_CLD_KILLED 2 /* child was killed */ 133 #define LINUX_CLD_DUMPED 3 /* child terminated abnormally */ 134 #define LINUX_CLD_TRAPPED 4 /* traced child has trapped */ 135 #define LINUX_CLD_STOPPED 5 /* child has stopped */ 136 #define LINUX_CLD_CONTINUED 6 /* stopped child has continued */ 137 138 /* 139 * SIGPOLL (or any other signal without signal specific si_codes) si_codes 140 */ 141 #define LINUX_POLL_IN 1 /* data input available */ 142 #define LINUX_POLL_OUT 2 /* output buffers available */ 143 #define LINUX_POLL_MSG 3 /* input message available */ 144 #define LINUX_POLL_ERR 4 /* i/o error */ 145 #define LINUX_POLL_PRI 5 /* high priority input available */ 146 #define LINUX_POLL_HUP 6 /* device disconnected */ 147 148 /* 149 * SIGSYS si_codes 150 */ 151 #define LINUX_SYS_SECCOMP 1 /* seccomp triggered */ 152 #define LINUX_SYS_USER_DISPATCH 2 /* syscall user dispatch triggered */ 153 154 /* 155 * SIGEMT si_codes 156 */ 157 #define LINUX_EMT_TAGOVF 1 /* tag overflow */ 158 159 typedef union l_sigval { 160 l_int sival_int; 161 l_uintptr_t sival_ptr; 162 } l_sigval_t; 163 164 #define LINUX_SI_MAX_SIZE 128 165 166 union __sifields { 167 struct { 168 l_pid_t _pid; 169 l_uid_t _uid; 170 } _kill; 171 172 struct { 173 l_timer_t _tid; 174 l_int _overrun; 175 char _pad[sizeof(l_uid_t) - sizeof(int)]; 176 union l_sigval _sigval; 177 l_uint _sys_private; 178 } _timer; 179 180 struct { 181 l_pid_t _pid; /* sender's pid */ 182 l_uid_t _uid; /* sender's uid */ 183 union l_sigval _sigval; 184 } _rt; 185 186 struct { 187 l_pid_t _pid; /* which child */ 188 l_uid_t _uid; /* sender's uid */ 189 l_int _status; /* exit code */ 190 l_clock_t _utime; 191 l_clock_t _stime; 192 } _sigchld; 193 194 struct { 195 l_uintptr_t _addr; /* Faulting insn/memory ref. */ 196 } _sigfault; 197 198 struct { 199 l_long _band; /* POLL_IN,POLL_OUT,POLL_MSG */ 200 l_int _fd; 201 } _sigpoll; 202 }; 203 204 typedef struct l_siginfo { 205 union { 206 struct { 207 l_int lsi_signo; 208 l_int lsi_errno; 209 l_int lsi_code; 210 union __sifields _sifields; 211 }; 212 l_int _pad[LINUX_SI_MAX_SIZE/sizeof(l_int)]; 213 }; 214 } l_siginfo_t; 215 216 _Static_assert(sizeof(l_siginfo_t) == LINUX_SI_MAX_SIZE, "l_siginfo_t size"); 217 218 #define lsi_pid _sifields._kill._pid 219 #define lsi_uid _sifields._kill._uid 220 #define lsi_tid _sifields._timer._tid 221 #define lsi_overrun _sifields._timer._overrun 222 #define lsi_sys_private _sifields._timer._sys_private 223 #define lsi_status _sifields._sigchld._status 224 #define lsi_utime _sifields._sigchld._utime 225 #define lsi_stime _sifields._sigchld._stime 226 #define lsi_value _sifields._rt._sigval 227 #define lsi_int _sifields._rt._sigval.sival_int 228 #define lsi_ptr _sifields._rt._sigval.sival_ptr 229 #define lsi_addr _sifields._sigfault._addr 230 #define lsi_band _sifields._sigpoll._band 231 #define lsi_fd _sifields._sigpoll._fd 232 233 #endif /* _LINUX_SIGINFO_H_ */ 234 235