1/* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * Copyright (C) 1998, 1999, 2001 Ralf Baechle 7 * Copyright (C) 2000, 2001 Silicon Graphics, Inc. 8 */ 9#ifndef _ASM_SIGINFO_H 10#define _ASM_SIGINFO_H 11 12#include <linux/types.h> 13 14/* This structure matches IRIX 32/n32 ABIs for binary compatibility. */ 15 16typedef union sigval { 17 int sival_int; 18 void *sival_ptr; 19} sigval_t; 20 21#ifdef __KERNEL__ 22 23typedef union sigval32 { 24 int sival_int; 25 s32 sival_ptr; 26} sigval_t32; 27 28#endif /* __KERNEL__ */ 29 30/* This structure matches IRIX 32/n32 ABIs for binary compatibility but 31 has Linux extensions. */ 32 33#define SI_MAX_SIZE 128 34#define SI_PAD_SIZE ((SI_MAX_SIZE/sizeof(int)) - 4) 35#define SI_PAD_SIZE32 ((SI_MAX_SIZE/sizeof(int)) - 3) 36 37typedef struct siginfo { 38 int si_signo; 39 int si_code; 40 int si_errno; 41 42 union { 43 int _pad[SI_PAD_SIZE]; 44 45 /* kill() */ 46 struct { 47 pid_t _pid; /* sender's pid */ 48 uid_t _uid; /* sender's uid */ 49 } _kill; 50 51 /* SIGCHLD */ 52 struct { 53 pid_t _pid; /* which child */ 54 uid_t _uid; /* sender's uid */ 55 clock_t _utime; 56 int _status; /* exit code */ 57 clock_t _stime; 58 } _sigchld; 59 60 /* IRIX SIGCHLD */ 61 struct { 62 pid_t _pid; /* which child */ 63 clock_t _utime; 64 int _status; /* exit code */ 65 clock_t _stime; 66 } _irix_sigchld; 67 68 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ 69 struct { 70 void *_addr; /* faulting insn/memory ref. */ 71 } _sigfault; 72 73 /* SIGPOLL, SIGXFSZ (To do ...) */ 74 struct { 75 long _band; /* POLL_IN, POLL_OUT, POLL_MSG */ 76 int _fd; 77 } _sigpoll; 78 79 /* POSIX.1b timers */ 80 struct { 81 unsigned int _timer1; 82 unsigned int _timer2; 83 } _timer; 84 85 /* POSIX.1b signals */ 86 struct { 87 pid_t _pid; /* sender's pid */ 88 uid_t _uid; /* sender's uid */ 89 sigval_t _sigval; 90 } _rt; 91 92 } _sifields; 93} siginfo_t; 94 95#ifdef __KERNEL__ 96 97typedef struct siginfo32 { 98 int si_signo; 99 int si_code; 100 int si_errno; 101 102 union { 103 int _pad[SI_PAD_SIZE32]; 104 105 /* kill() */ 106 struct { 107 __kernel_pid_t32 _pid; /* sender's pid */ 108 __kernel_uid_t32 _uid; /* sender's uid */ 109 } _kill; 110 111 /* SIGCHLD */ 112 struct { 113 __kernel_pid_t32 _pid; /* which child */ 114 __kernel_uid_t32 _uid; /* sender's uid */ 115 __kernel_clock_t32 _utime; 116 int _status; /* exit code */ 117 __kernel_clock_t32 _stime; 118 } _sigchld; 119 120 /* IRIX SIGCHLD */ 121 struct { 122 __kernel_pid_t32 _pid; /* which child */ 123 __kernel_clock_t32 _utime; 124 int _status; /* exit code */ 125 __kernel_clock_t32 _stime; 126 } _irix_sigchld; 127 128 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ 129 struct { 130 s32 _addr; /* faulting insn/memory ref. */ 131 } _sigfault; 132 133 /* SIGPOLL, SIGXFSZ (To do ...) */ 134 struct { 135 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ 136 int _fd; 137 } _sigpoll; 138 139 /* POSIX.1b timers */ 140 struct { 141 unsigned int _timer1; 142 unsigned int _timer2; 143 } _timer; 144 145 /* POSIX.1b signals */ 146 struct { 147 __kernel_pid_t32 _pid; /* sender's pid */ 148 __kernel_uid_t32 _uid; /* sender's uid */ 149 sigval_t32 _sigval; 150 } _rt; 151 152 } _sifields; 153} siginfo_t32; 154 155#endif /* __KERNEL__ */ 156 157/* 158 * How these fields are to be accessed. 159 */ 160#define si_pid _sifields._kill._pid 161#define si_uid _sifields._kill._uid 162#define si_status _sifields._sigchld._status 163#define si_utime _sifields._sigchld._utime 164#define si_stime _sifields._sigchld._stime 165#define si_value _sifields._rt._sigval 166#define si_int _sifields._rt._sigval.sival_int 167#define si_ptr _sifields._rt._sigval.sival_ptr 168#define si_addr _sifields._sigfault._addr 169#define si_band _sifields._sigpoll._band 170#define si_fd _sifields._sigpoll._fd 171 172#ifdef __KERNEL__ 173#define __SI_MASK 0xffff0000 174#define __SI_KILL (0 << 16) 175#define __SI_TIMER (1 << 16) 176#define __SI_POLL (2 << 16) 177#define __SI_FAULT (3 << 16) 178#define __SI_CHLD (4 << 16) 179#define __SI_RT (5 << 16) 180#define __SI_CODE(T,N) ((T) << 16 | ((N) & 0xffff)) 181#else 182#define __SI_KILL 0 183#define __SI_TIMER 0 184#define __SI_POLL 0 185#define __SI_FAULT 0 186#define __SI_CHLD 0 187#define __SI_RT 0 188#define __SI_CODE(T,N) (N) 189#endif 190 191/* 192 * si_code values 193 * Again these have been choosen to be IRIX compatible. 194 */ 195#define SI_USER 0 /* sent by kill, sigsend, raise */ 196#define SI_KERNEL 0x80 /* sent by the kernel from somewhere */ 197#define SI_QUEUE -1 /* sent by sigqueue */ 198#define SI_ASYNCIO -2 /* sent by AIO completion */ 199#define SI_TIMER __SI_CODE(__SI_TIMER,-3) /* sent by timer expiration */ 200#define SI_MESGQ -4 /* sent by real time mesq state change */ 201#define SI_SIGIO -5 /* sent by queued SIGIO */ 202#define SI_TKILL -6 /* sent by tkill system call */ 203 204#define SI_FROMUSER(siptr) ((siptr)->si_code <= 0) 205#define SI_FROMKERNEL(siptr) ((siptr)->si_code > 0) 206 207/* 208 * SIGILL si_codes 209 */ 210#define ILL_ILLOPC (__SI_FAULT|1) /* illegal opcode */ 211#define ILL_ILLOPN (__SI_FAULT|2) /* illegal operand */ 212#define ILL_ILLADR (__SI_FAULT|3) /* illegal addressing mode */ 213#define ILL_ILLTRP (__SI_FAULT|4) /* illegal trap */ 214#define ILL_PRVOPC (__SI_FAULT|5) /* privileged opcode */ 215#define ILL_PRVREG (__SI_FAULT|6) /* privileged register */ 216#define ILL_COPROC (__SI_FAULT|7) /* coprocessor error */ 217#define ILL_BADSTK (__SI_FAULT|8) /* internal stack error */ 218#define NSIGILL 8 219 220/* 221 * SIGFPE si_codes 222 */ 223#define FPE_INTDIV (__SI_FAULT|1) /* integer divide by zero */ 224#define FPE_INTOVF (__SI_FAULT|2) /* integer overflow */ 225#define FPE_FLTDIV (__SI_FAULT|3) /* floating point divide by zero */ 226#define FPE_FLTOVF (__SI_FAULT|4) /* floating point overflow */ 227#define FPE_FLTUND (__SI_FAULT|5) /* floating point underflow */ 228#define FPE_FLTRES (__SI_FAULT|6) /* floating point inexact result */ 229#define FPE_FLTINV (__SI_FAULT|7) /* floating point invalid operation */ 230#define FPE_FLTSUB (__SI_FAULT|8) /* subscript out of range */ 231#define NSIGFPE 8 232 233/* 234 * SIGSEGV si_codes 235 */ 236#define SEGV_MAPERR (__SI_FAULT|1) /* address not mapped to object */ 237#define SEGV_ACCERR (__SI_FAULT|2) /* invalid permissions for mapped object */ 238#define NSIGSEGV 2 239 240/* 241 * SIGBUS si_codes 242 */ 243#define BUS_ADRALN (__SI_FAULT|1) /* invalid address alignment */ 244#define BUS_ADRERR (__SI_FAULT|2) /* non-existant physical address */ 245#define BUS_OBJERR (__SI_FAULT|3) /* object specific hardware error */ 246#define NSIGBUS 3 247 248/* 249 * SIGTRAP si_codes 250 */ 251#define TRAP_BRKPT (__SI_FAULT|1) /* process breakpoint */ 252#define TRAP_TRACE (__SI_FAULT|2) /* process trace trap */ 253#define NSIGTRAP 2 254 255/* 256 * SIGCHLD si_codes 257 */ 258#define CLD_EXITED (__SI_CHLD|1) /* child has exited */ 259#define CLD_KILLED (__SI_CHLD|2) /* child was killed */ 260#define CLD_DUMPED (__SI_CHLD|3) /* child terminated abnormally */ 261#define CLD_TRAPPED (__SI_CHLD|4) /* traced child has trapped */ 262#define CLD_STOPPED (__SI_CHLD|5) /* child has stopped */ 263#define CLD_CONTINUED (__SI_CHLD|6) /* stopped child has continued */ 264#define NSIGCHLD 6 265 266/* 267 * SIGPOLL si_codes 268 */ 269#define POLL_IN (__SI_POLL|1) /* data input available */ 270#define POLL_OUT (__SI_POLL|2) /* output buffers available */ 271#define POLL_MSG (__SI_POLL|3) /* input message available */ 272#define POLL_ERR (__SI_POLL|4) /* i/o error */ 273#define POLL_PRI (__SI_POLL|5) /* high priority input available */ 274#define POLL_HUP (__SI_POLL|6) /* device disconnected */ 275#define NSIGPOLL 6 276 277/* 278 * sigevent definitions 279 * 280 * It seems likely that SIGEV_THREAD will have to be handled from 281 * userspace, libpthread transmuting it to SIGEV_SIGNAL, which the 282 * thread manager then catches and does the appropriate nonsense. 283 * However, everything is written out here so as to not get lost. 284 */ 285#define SIGEV_NONE 128 /* other notification: meaningless */ 286#define SIGEV_SIGNAL 129 /* notify via signal */ 287#define SIGEV_CALLBACK 130 /* ??? */ 288#define SIGEV_THREAD 131 /* deliver via thread creation */ 289 290#define SIGEV_MAX_SIZE 64 291#define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 4) 292 293typedef struct sigevent { 294 int sigev_notify; 295 sigval_t sigev_value; 296 int sigev_signo; 297 union { 298 int _pad[SIGEV_PAD_SIZE]; 299 300 struct { 301 void (*_function)(sigval_t); 302 void *_attribute; /* really pthread_attr_t */ 303 } _sigev_thread; 304 } _sigev_un; 305} sigevent_t; 306 307#define sigev_notify_function _sigev_un._sigev_thread._function 308#define sigev_notify_attributes _sigev_un._sigev_thread._attribute 309 310#ifdef __KERNEL__ 311#include <linux/string.h> 312 313static inline void copy_siginfo(siginfo_t *to, siginfo_t *from) 314{ 315 if (from->si_code < 0) 316 memcpy(to, from, sizeof(siginfo_t)); 317 else 318 /* _sigchld is currently the largest know union member */ 319 memcpy(to, from, 3*sizeof(int) + sizeof(from->_sifields._sigchld)); 320} 321 322extern int copy_siginfo_to_user(siginfo_t *to, siginfo_t *from); 323 324#endif /* __KERNEL__ */ 325 326#endif /* _ASM_SIGINFO_H */ 327