sysdeps/unix/sysv/linux/mips/bits/siginfo.h

   1 /* siginfo_t, sigevent and constants.  Linux/MIPS version.
   2    Copyright (C) 1997, 1998, 2000, 2001, 2002, 2003, 2004
   3         Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #if !defined _SIGNAL_H && !defined __need_siginfo_t \
  22     && !defined __need_sigevent_t
  23 # error "Never include this file directly.  Use <signal.h> instead"
  24 #endif
  25
  26 #include <bits/wordsize.h>
  27
  28 #if (!defined __have_sigval_t \
  29      && (defined _SIGNAL_H || defined __need_siginfo_t \
  30          || defined __need_sigevent_t))
  31 # define __have_sigval_t        1
  32
  33 /* Type for data associated with a signal.  */
  34 typedef union sigval
  35   {
  36     int sival_int;
  37     void *sival_ptr;
  38   } sigval_t;
  39 #endif
  40
  41 #if (!defined __have_siginfo_t \
  42      && (defined _SIGNAL_H || defined __need_siginfo_t))
  43 # define __have_siginfo_t       1
  44
  45 # define __SI_MAX_SIZE          128
  46 # if __WORDSIZE == 64
  47 #  define __SI_PAD_SIZE         ((__SI_MAX_SIZE / sizeof (int)) - 4)
  48 # else
  49 #  define __SI_PAD_SIZE         ((__SI_MAX_SIZE / sizeof (int)) - 3)
  50 # endif
  51
  52
  53 typedef struct siginfo
  54   {
  55     int si_signo;               /* Signal number.  */
  56     int si_code;                /* Signal code.  */
  57     int si_errno;               /* If non-zero, an errno value associated with
  58                                    this signal, as defined in <errno.h>.  */
  59     int __pad0[__SI_MAX_SIZE / sizeof (int) - __SI_PAD_SIZE - 3];
  60                                 /* Explicit padding.  */
  61
  62     union
  63       {
  64         int _pad[__SI_PAD_SIZE];
  65
  66          /* kill().  */
  67         struct
  68           {
  69             __pid_t si_pid;     /* Sending process ID.  */
  70             __uid_t si_uid;     /* Real user ID of sending process.  */
  71           } _kill;
  72
  73         /* SIGCHLD.  */
  74         struct
  75           {
  76             __pid_t si_pid;     /* Which child.  */
  77             __uid_t si_uid;     /* Real user ID of sending process.  */
  78             int si_status;      /* Exit value or signal.  */
  79             __clock_t si_utime;
  80             __clock_t si_stime;
  81           } _sigchld;
  82
  83         /* SIGILL, SIGFPE, SIGSEGV, SIGBUS.  */
  84         struct
  85           {
  86             void *si_addr;      /* Faulting insn/memory ref.  */
  87           } _sigfault;
  88
  89         /* SIGPOLL.  */
  90         struct
  91           {
  92             int si_band;        /* Band event for SIGPOLL.  */
  93             int si_fd;
  94           } _sigpoll;
  95
  96         /* POSIX.1b timers.  */
  97         struct
  98           {
  99             unsigned int _timer1;
 100             unsigned int _timer2;
 101           } _timer;
 102
 103         /* POSIX.1b signals.  */
 104         struct
 105           {
 106             __pid_t si_pid;     /* Sending process ID.  */
 107             __uid_t si_uid;     /* Real user ID of sending process.  */
 108             sigval_t si_sigval; /* Signal value.  */
 109           } _rt;
 110       } _sifields;
 111   } siginfo_t;
 112
 113
 114 /* X/Open requires some more fields with fixed names.  */
 115 # define si_pid         _sifields._kill.si_pid
 116 # define si_uid         _sifields._kill.si_uid
 117 # define si_status      _sifields._sigchld.si_status
 118 # define si_utime       _sifields._sigchld.si_utime
 119 # define si_stime       _sifields._sigchld.si_stime
 120 # define si_value       _sifields._rt.si_sigval
 121 # define si_int         _sifields._rt.si_sigval.sival_int
 122 # define si_ptr         _sifields._rt.si_sigval.sival_ptr
 123 # define si_addr        _sifields._sigfault.si_addr
 124 # define si_band        _sifields._sigpoll.si_band
 125 # define si_fd          _sifields._sigpoll.si_fd
 126
 127
 128 /* Values for `si_code'.  Positive values are reserved for kernel-generated
 129    signals.  */
 130 enum
 131 {
 132   SI_ASYNCNL = -60,             /* Sent by asynch name lookup completion.  */
 133 # define SI_ASYNCNL     SI_ASYNCNL
 134   SI_TKILL = -6,                /* Sent by tkill.  */
 135 # define SI_TKILL       SI_TKILL
 136   SI_SIGIO,                     /* Sent by queued SIGIO.  */
 137 # define SI_SIGIO       SI_SIGIO
 138   SI_MESGQ,                     /* Sent by real time mesq state change.  */
 139 # define SI_MESGQ       SI_MESGQ
 140   SI_TIMER,                     /* Sent by real time mesq state change.  */
 141 # define SI_TIMER       SI_TIMER
 142   SI_ASYNCIO,                   /* Sent by AIO completion.  */
 143 # define SI_ASYNCIO     SI_ASYNCIO
 144   SI_QUEUE,                     /* Sent by sigqueue.  */
 145 # define SI_QUEUE       SI_QUEUE
 146   SI_USER,                      /* Sent by kill, sigsend, raise.  */
 147 # define SI_USER        SI_USER
 148   SI_KERNEL = 0x80              /* Send by kernel.  */
 149 #define SI_KERNEL       SI_KERNEL
 150 };
 151
 152
 153 /* `si_code' values for SIGILL signal.  */
 154 enum
 155 {
 156   ILL_ILLOPC = 1,               /* Illegal opcode.  */
 157 # define ILL_ILLOPC     ILL_ILLOPC
 158   ILL_ILLOPN,                   /* Illegal operand.  */
 159 # define ILL_ILLOPN     ILL_ILLOPN
 160   ILL_ILLADR,                   /* Illegal addressing mode.  */
 161 # define ILL_ILLADR     ILL_ILLADR
 162   ILL_ILLTRP,                   /* Illegal trap.  */
 163 # define ILL_ILLTRP     ILL_ILLTRP
 164   ILL_PRVOPC,                   /* Privileged opcode.  */
 165 # define ILL_PRVOPC     ILL_PRVOPC
 166   ILL_PRVREG,                   /* Privileged register.  */
 167 # define ILL_PRVREG     ILL_PRVREG
 168   ILL_COPROC,                   /* Coprocessor error.  */
 169 # define ILL_COPROC     ILL_COPROC
 170   ILL_BADSTK                    /* Internal stack error.  */
 171 # define ILL_BADSTK     ILL_BADSTK
 172 };
 173
 174 /* `si_code' values for SIGFPE signal.  */
 175 enum
 176 {
 177   FPE_INTDIV = 1,               /* Integer divide by zero.  */
 178 # define FPE_INTDIV     FPE_INTDIV
 179   FPE_INTOVF,                   /* Integer overflow.  */
 180 # define FPE_INTOVF     FPE_INTOVF
 181   FPE_FLTDIV,                   /* Floating point divide by zero.  */
 182 # define FPE_FLTDIV     FPE_FLTDIV
 183   FPE_FLTOVF,                   /* Floating point overflow.  */
 184 # define FPE_FLTOVF     FPE_FLTOVF
 185   FPE_FLTUND,                   /* Floating point underflow.  */
 186 # define FPE_FLTUND     FPE_FLTUND
 187   FPE_FLTRES,                   /* Floating point inexact result.  */
 188 # define FPE_FLTRES     FPE_FLTRES
 189   FPE_FLTINV,                   /* Floating point invalid operation.  */
 190 # define FPE_FLTINV     FPE_FLTINV
 191   FPE_FLTSUB                    /* Subscript out of range.  */
 192 # define FPE_FLTSUB     FPE_FLTSUB
 193 };
 194
 195 /* `si_code' values for SIGSEGV signal.  */
 196 enum
 197 {
 198   SEGV_MAPERR = 1,              /* Address not mapped to object.  */
 199 # define SEGV_MAPERR    SEGV_MAPERR
 200   SEGV_ACCERR                   /* Invalid permissions for mapped object.  */
 201 # define SEGV_ACCERR    SEGV_ACCERR
 202 };
 203
 204 /* `si_code' values for SIGBUS signal.  */
 205 enum
 206 {
 207   BUS_ADRALN = 1,               /* Invalid address alignment.  */
 208 # define BUS_ADRALN     BUS_ADRALN
 209   BUS_ADRERR,                   /* Non-existant physical address.  */
 210 # define BUS_ADRERR     BUS_ADRERR
 211   BUS_OBJERR                    /* Object specific hardware error.  */
 212 # define BUS_OBJERR     BUS_OBJERR
 213 };
 214
 215 /* `si_code' values for SIGTRAP signal.  */
 216 enum
 217 {
 218   TRAP_BRKPT = 1,               /* Process breakpoint.  */
 219 # define TRAP_BRKPT     TRAP_BRKPT
 220   TRAP_TRACE                    /* Process trace trap.  */
 221 # define TRAP_TRACE     TRAP_TRACE
 222 };
 223
 224 /* `si_code' values for SIGCHLD signal.  */
 225 enum
 226 {
 227   CLD_EXITED = 1,               /* Child has exited.  */
 228 # define CLD_EXITED     CLD_EXITED
 229   CLD_KILLED,                   /* Child was killed.  */
 230 # define CLD_KILLED     CLD_KILLED
 231   CLD_DUMPED,                   /* Child terminated abnormally.  */
 232 # define CLD_DUMPED     CLD_DUMPED
 233   CLD_TRAPPED,                  /* Traced child has trapped.  */
 234 # define CLD_TRAPPED    CLD_TRAPPED
 235   CLD_STOPPED,                  /* Child has stopped.  */
 236 # define CLD_STOPPED    CLD_STOPPED
 237   CLD_CONTINUED                 /* Stopped child has continued.  */
 238 # define CLD_CONTINUED  CLD_CONTINUED
 239 };
 240
 241 /* `si_code' values for SIGPOLL signal.  */
 242 enum
 243 {
 244   POLL_IN = 1,                  /* Data input available.  */
 245 # define POLL_IN        POLL_IN
 246   POLL_OUT,                     /* Output buffers available.  */
 247 # define POLL_OUT       POLL_OUT
 248   POLL_MSG,                     /* Input message available.   */
 249 # define POLL_MSG       POLL_MSG
 250   POLL_ERR,                     /* I/O error.  */
 251 # define POLL_ERR       POLL_ERR
 252   POLL_PRI,                     /* High priority input available.  */
 253 # define POLL_PRI       POLL_PRI
 254   POLL_HUP                      /* Device disconnected.  */
 255 # define POLL_HUP       POLL_HUP
 256 };
 257
 258 # undef __need_siginfo_t
 259 #endif  /* !have siginfo_t && (have _SIGNAL_H || need siginfo_t).  */
 260
 261
 262 #if (defined _SIGNAL_H || defined __need_sigevent_t) \
 263     && !defined __have_sigevent_t
 264 # define __have_sigevent_t      1
 265
 266 /* Structure to transport application-defined values with signals.  */
 267 # define __SIGEV_MAX_SIZE       64
 268 # define __SIGEV_PAD_SIZE       ((__SIGEV_MAX_SIZE / sizeof (int)) - 3)
 269
 270 /* Forward declaration of the `pthread_attr_t' type.  */
 271 struct __pthread_attr_s;
 272
 273 /* XXX This one might need to change!!!  */
 274 typedef struct sigevent
 275   {
 276     sigval_t sigev_value;
 277     int sigev_signo;
 278     int sigev_notify;
 279
 280     union
 281       {
 282         int _pad[__SIGEV_PAD_SIZE];
 283
 284         struct
 285           {
 286             void (*_function) (sigval_t);       /* Function to start.  */
 287             void *_attribute;                   /* Really pthread_attr_t.  */
 288           } _sigev_thread;
 289       } _sigev_un;
 290   } sigevent_t;
 291
 292 /* POSIX names to access some of the members.  */
 293 # define sigev_notify_function   _sigev_un._sigev_thread._function
 294 # define sigev_notify_attributes _sigev_un._sigev_thread._attribute
 295
 296 /* `sigev_notify' values.  */
 297 enum
 298 {
 299   SIGEV_SIGNAL = 0,             /* Notify via signal.  */
 300 # define SIGEV_SIGNAL   SIGEV_SIGNAL
 301   SIGEV_NONE,                   /* Other notification: meaningless.  */
 302 # define SIGEV_NONE     SIGEV_NONE
 303   SIGEV_CALLBACK,               /* Deliver via thread creation.  */
 304 # define SIGEV_CALLBACK SIGEV_CALLBACK
 305   SIGEV_THREAD                  /* Deliver via thread creation.  */
 306 # define SIGEV_THREAD   SIGEV_THREAD
 307 };
 308
 309 #endif  /* have _SIGNAL_H.  */