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

   1 /* siginfo_t, sigevent and constants.  Linux/MIPS version.
   2    Copyright (C) 1997-2012 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #if !defined _SIGNAL_H && !defined __need_siginfo_t \
  21     && !defined __need_sigevent_t
  22 # error "Never include this file directly.  Use <signal.h> instead"
  23 #endif
  24
  25 #include <bits/wordsize.h>
  26
  27 #if (!defined __have_sigval_t \
  28      && (defined _SIGNAL_H || defined __need_siginfo_t \
  29          || defined __need_sigevent_t))
  30 # define __have_sigval_t        1
  31
  32 /* Type for data associated with a signal.  */
  33 typedef union sigval
  34   {
  35     int sival_int;
  36     void *sival_ptr;
  37   } sigval_t;
  38 #endif
  39
  40 #if (!defined __have_siginfo_t \
  41      && (defined _SIGNAL_H || defined __need_siginfo_t))
  42 # define __have_siginfo_t       1
  43
  44 # define __SI_MAX_SIZE          128
  45 # if __WORDSIZE == 64
  46 #  define __SI_PAD_SIZE         ((__SI_MAX_SIZE / sizeof (int)) - 4)
  47 # else
  48 #  define __SI_PAD_SIZE         ((__SI_MAX_SIZE / sizeof (int)) - 3)
  49 # endif
  50
  51
  52 typedef struct
  53   {
  54     int si_signo;               /* Signal number.  */
  55     int si_code;                /* Signal code.  */
  56     int si_errno;               /* If non-zero, an errno value associated with
  57                                    this signal, as defined in <errno.h>.  */
  58     int __pad0[__SI_MAX_SIZE / sizeof (int) - __SI_PAD_SIZE - 3];
  59                                 /* Explicit padding.  */
  60
  61     union
  62       {
  63         int _pad[__SI_PAD_SIZE];
  64
  65          /* kill().  */
  66         struct
  67           {
  68             __pid_t si_pid;     /* Sending process ID.  */
  69             __uid_t si_uid;     /* Real user ID of sending process.  */
  70           } _kill;
  71
  72         /* POSIX.1b timers.  */
  73         struct
  74           {
  75             int si_tid;         /* Timer ID.  */
  76             int si_overrun;     /* Overrun count.  */
  77             sigval_t si_sigval; /* Signal value.  */
  78           } _timer;
  79
  80         /* POSIX.1b signals.  */
  81         struct
  82           {
  83             __pid_t si_pid;     /* Sending process ID.  */
  84             __uid_t si_uid;     /* Real user ID of sending process.  */
  85             sigval_t si_sigval; /* Signal value.  */
  86           } _rt;
  87
  88         /* SIGCHLD.  */
  89         struct
  90           {
  91             __pid_t si_pid;     /* Which child.  */
  92             __uid_t si_uid;     /* Real user ID of sending process.  */
  93             int si_status;      /* Exit value or signal.  */
  94             __clock_t si_utime;
  95             __clock_t si_stime;
  96           } _sigchld;
  97
  98         /* SIGILL, SIGFPE, SIGSEGV, SIGBUS.  */
  99         struct
 100           {
 101             void *si_addr;      /* Faulting insn/memory ref.  */
 102           } _sigfault;
 103
 104         /* SIGPOLL.  */
 105         struct
 106           {
 107             long int si_band;   /* Band event for SIGPOLL.  */
 108             int si_fd;
 109           } _sigpoll;
 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_timerid     _sifields._timer.si_tid
 118 # define si_overrun     _sifields._timer.si_overrun
 119 # define si_status      _sifields._sigchld.si_status
 120 # define si_utime       _sifields._sigchld.si_utime
 121 # define si_stime       _sifields._sigchld.si_stime
 122 # define si_value       _sifields._rt.si_sigval
 123 # define si_int         _sifields._rt.si_sigval.sival_int
 124 # define si_ptr         _sifields._rt.si_sigval.sival_ptr
 125 # define si_addr        _sifields._sigfault.si_addr
 126 # define si_band        _sifields._sigpoll.si_band
 127 # define si_fd          _sifields._sigpoll.si_fd
 128
 129
 130 /* Values for `si_code'.  Positive values are reserved for kernel-generated
 131    signals.  */
 132 enum
 133 {
 134   SI_ASYNCNL = -60,             /* Sent by asynch name lookup completion.  */
 135 # define SI_ASYNCNL     SI_ASYNCNL
 136   SI_TKILL = -6,                /* Sent by tkill.  */
 137 # define SI_TKILL       SI_TKILL
 138   SI_SIGIO,                     /* Sent by queued SIGIO.  */
 139 # define SI_SIGIO       SI_SIGIO
 140   SI_MESGQ,                     /* Sent by real time mesq state change.  */
 141 # define SI_MESGQ       SI_MESGQ
 142   SI_TIMER,                     /* Sent by real time mesq state change.  */
 143 # define SI_TIMER       SI_TIMER
 144   SI_ASYNCIO,                   /* Sent by AIO completion.  */
 145 # define SI_ASYNCIO     SI_ASYNCIO
 146   SI_QUEUE,                     /* Sent by sigqueue.  */
 147 # define SI_QUEUE       SI_QUEUE
 148   SI_USER,                      /* Sent by kill, sigsend.  */
 149 # define SI_USER        SI_USER
 150   SI_KERNEL = 0x80              /* Send by kernel.  */
 151 #define SI_KERNEL       SI_KERNEL
 152 };
 153
 154
 155 /* `si_code' values for SIGILL signal.  */
 156 enum
 157 {
 158   ILL_ILLOPC = 1,               /* Illegal opcode.  */
 159 # define ILL_ILLOPC     ILL_ILLOPC
 160   ILL_ILLOPN,                   /* Illegal operand.  */
 161 # define ILL_ILLOPN     ILL_ILLOPN
 162   ILL_ILLADR,                   /* Illegal addressing mode.  */
 163 # define ILL_ILLADR     ILL_ILLADR
 164   ILL_ILLTRP,                   /* Illegal trap.  */
 165 # define ILL_ILLTRP     ILL_ILLTRP
 166   ILL_PRVOPC,                   /* Privileged opcode.  */
 167 # define ILL_PRVOPC     ILL_PRVOPC
 168   ILL_PRVREG,                   /* Privileged register.  */
 169 # define ILL_PRVREG     ILL_PRVREG
 170   ILL_COPROC,                   /* Coprocessor error.  */
 171 # define ILL_COPROC     ILL_COPROC
 172   ILL_BADSTK                    /* Internal stack error.  */
 173 # define ILL_BADSTK     ILL_BADSTK
 174 };
 175
 176 /* `si_code' values for SIGFPE signal.  */
 177 enum
 178 {
 179   FPE_INTDIV = 1,               /* Integer divide by zero.  */
 180 # define FPE_INTDIV     FPE_INTDIV
 181   FPE_INTOVF,                   /* Integer overflow.  */
 182 # define FPE_INTOVF     FPE_INTOVF
 183   FPE_FLTDIV,                   /* Floating point divide by zero.  */
 184 # define FPE_FLTDIV     FPE_FLTDIV
 185   FPE_FLTOVF,                   /* Floating point overflow.  */
 186 # define FPE_FLTOVF     FPE_FLTOVF
 187   FPE_FLTUND,                   /* Floating point underflow.  */
 188 # define FPE_FLTUND     FPE_FLTUND
 189   FPE_FLTRES,                   /* Floating point inexact result.  */
 190 # define FPE_FLTRES     FPE_FLTRES
 191   FPE_FLTINV,                   /* Floating point invalid operation.  */
 192 # define FPE_FLTINV     FPE_FLTINV
 193   FPE_FLTSUB                    /* Subscript out of range.  */
 194 # define FPE_FLTSUB     FPE_FLTSUB
 195 };
 196
 197 /* `si_code' values for SIGSEGV signal.  */
 198 enum
 199 {
 200   SEGV_MAPERR = 1,              /* Address not mapped to object.  */
 201 # define SEGV_MAPERR    SEGV_MAPERR
 202   SEGV_ACCERR                   /* Invalid permissions for mapped object.  */
 203 # define SEGV_ACCERR    SEGV_ACCERR
 204 };
 205
 206 /* `si_code' values for SIGBUS signal.  */
 207 enum
 208 {
 209   BUS_ADRALN = 1,               /* Invalid address alignment.  */
 210 # define BUS_ADRALN     BUS_ADRALN
 211   BUS_ADRERR,                   /* Non-existant physical address.  */
 212 # define BUS_ADRERR     BUS_ADRERR
 213   BUS_OBJERR                    /* Object specific hardware error.  */
 214 # define BUS_OBJERR     BUS_OBJERR
 215 };
 216
 217 /* `si_code' values for SIGTRAP signal.  */
 218 enum
 219 {
 220   TRAP_BRKPT = 1,               /* Process breakpoint.  */
 221 # define TRAP_BRKPT     TRAP_BRKPT
 222   TRAP_TRACE                    /* Process trace trap.  */
 223 # define TRAP_TRACE     TRAP_TRACE
 224 };
 225
 226 /* `si_code' values for SIGCHLD signal.  */
 227 enum
 228 {
 229   CLD_EXITED = 1,               /* Child has exited.  */
 230 # define CLD_EXITED     CLD_EXITED
 231   CLD_KILLED,                   /* Child was killed.  */
 232 # define CLD_KILLED     CLD_KILLED
 233   CLD_DUMPED,                   /* Child terminated abnormally.  */
 234 # define CLD_DUMPED     CLD_DUMPED
 235   CLD_TRAPPED,                  /* Traced child has trapped.  */
 236 # define CLD_TRAPPED    CLD_TRAPPED
 237   CLD_STOPPED,                  /* Child has stopped.  */
 238 # define CLD_STOPPED    CLD_STOPPED
 239   CLD_CONTINUED                 /* Stopped child has continued.  */
 240 # define CLD_CONTINUED  CLD_CONTINUED
 241 };
 242
 243 /* `si_code' values for SIGPOLL signal.  */
 244 enum
 245 {
 246   POLL_IN = 1,                  /* Data input available.  */
 247 # define POLL_IN        POLL_IN
 248   POLL_OUT,                     /* Output buffers available.  */
 249 # define POLL_OUT       POLL_OUT
 250   POLL_MSG,                     /* Input message available.   */
 251 # define POLL_MSG       POLL_MSG
 252   POLL_ERR,                     /* I/O error.  */
 253 # define POLL_ERR       POLL_ERR
 254   POLL_PRI,                     /* High priority input available.  */
 255 # define POLL_PRI       POLL_PRI
 256   POLL_HUP                      /* Device disconnected.  */
 257 # define POLL_HUP       POLL_HUP
 258 };
 259
 260 # undef __need_siginfo_t
 261 #endif  /* !have siginfo_t && (have _SIGNAL_H || need siginfo_t).  */
 262
 263
 264 #if (defined _SIGNAL_H || defined __need_sigevent_t) \
 265     && !defined __have_sigevent_t
 266 # define __have_sigevent_t      1
 267
 268 /* Structure to transport application-defined values with signals.  */
 269 # define __SIGEV_MAX_SIZE       64
 270 # if __WORDSIZE == 64
 271 #  define __SIGEV_PAD_SIZE      ((__SIGEV_MAX_SIZE / sizeof (int)) - 4)
 272 # else
 273 #  define __SIGEV_PAD_SIZE      ((__SIGEV_MAX_SIZE / sizeof (int)) - 3)
 274 # endif
 275
 276 /* Forward declaration.  */
 277 typedef union __pthread_attr pthread_attr_t;
 278
 279 typedef struct sigevent
 280   {
 281     sigval_t sigev_value;
 282     int sigev_signo;
 283     int sigev_notify;
 284
 285     union
 286       {
 287         int _pad[__SIGEV_PAD_SIZE];
 288
 289         /* When SIGEV_SIGNAL and SIGEV_THREAD_ID set, LWP ID of the
 290            thread to receive the signal.  */
 291         __pid_t _tid;
 292
 293         struct
 294           {
 295             void (*_function) (sigval_t);       /* Function to start.  */
 296             pthread_attr_t *_attribute;         /* Thread attributes.  */
 297           } _sigev_thread;
 298       } _sigev_un;
 299   } sigevent_t;
 300
 301 /* POSIX names to access some of the members.  */
 302 # define sigev_notify_function   _sigev_un._sigev_thread._function
 303 # define sigev_notify_attributes _sigev_un._sigev_thread._attribute
 304
 305 /* `sigev_notify' values.  */
 306 enum
 307 {
 308   SIGEV_SIGNAL = 0,             /* Notify via signal.  */
 309 # define SIGEV_SIGNAL   SIGEV_SIGNAL
 310   SIGEV_NONE,                   /* Other notification: meaningless.  */
 311 # define SIGEV_NONE     SIGEV_NONE
 312   SIGEV_THREAD,                 /* Deliver via thread creation.  */
 313 # define SIGEV_THREAD   SIGEV_THREAD
 314
 315   SIGEV_THREAD_ID = 4           /* Send signal to specific thread.  */
 316 #define SIGEV_THREAD_ID SIGEV_THREAD_ID
 317 };
 318
 319 #endif  /* have _SIGNAL_H.  */