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, 2005, 2008
   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         /* POSIX.1b timers.  */
  74         struct
  75           {
  76             int si_tid;         /* Timer ID.  */
  77             int si_overrun;     /* Overrun count.  */
  78             sigval_t si_sigval; /* Signal value.  */
  79           } _timer;
  80
  81         /* POSIX.1b signals.  */
  82         struct
  83           {
  84             __pid_t si_pid;     /* Sending process ID.  */
  85             __uid_t si_uid;     /* Real user ID of sending process.  */
  86             sigval_t si_sigval; /* Signal value.  */
  87           } _rt;
  88
  89         /* SIGCHLD.  */
  90         struct
  91           {
  92             __pid_t si_pid;     /* Which child.  */
  93             __uid_t si_uid;     /* Real user ID of sending process.  */
  94             int si_status;      /* Exit value or signal.  */
  95             __clock_t si_utime;
  96             __clock_t si_stime;
  97           } _sigchld;
  98
  99         /* SIGILL, SIGFPE, SIGSEGV, SIGBUS.  */
 100         struct
 101           {
 102             void *si_addr;      /* Faulting insn/memory ref.  */
 103           } _sigfault;
 104
 105         /* SIGPOLL.  */
 106         struct
 107           {
 108             long int si_band;   /* Band event for SIGPOLL.  */
 109             int si_fd;
 110           } _sigpoll;
 111       } _sifields;
 112   } siginfo_t;
 113
 114
 115 /* X/Open requires some more fields with fixed names.  */
 116 # define si_pid         _sifields._kill.si_pid
 117 # define si_uid         _sifields._kill.si_uid
 118 # define si_timerid     _sifields._timer.si_tid
 119 # define si_overrun     _sifields._timer.si_overrun
 120 # define si_status      _sifields._sigchld.si_status
 121 # define si_utime       _sifields._sigchld.si_utime
 122 # define si_stime       _sifields._sigchld.si_stime
 123 # define si_value       _sifields._rt.si_sigval
 124 # define si_int         _sifields._rt.si_sigval.sival_int
 125 # define si_ptr         _sifields._rt.si_sigval.sival_ptr
 126 # define si_addr        _sifields._sigfault.si_addr
 127 # define si_band        _sifields._sigpoll.si_band
 128 # define si_fd          _sifields._sigpoll.si_fd
 129
 130
 131 /* Values for `si_code'.  Positive values are reserved for kernel-generated
 132    signals.  */
 133 enum
 134 {
 135   SI_ASYNCNL = -60,             /* Sent by asynch name lookup completion.  */
 136 # define SI_ASYNCNL     SI_ASYNCNL
 137   SI_TKILL = -6,                /* Sent by tkill.  */
 138 # define SI_TKILL       SI_TKILL
 139   SI_SIGIO,                     /* Sent by queued SIGIO.  */
 140 # define SI_SIGIO       SI_SIGIO
 141   SI_MESGQ,                     /* Sent by real time mesq state change.  */
 142 # define SI_MESGQ       SI_MESGQ
 143   SI_TIMER,                     /* Sent by real time mesq state change.  */
 144 # define SI_TIMER       SI_TIMER
 145   SI_ASYNCIO,                   /* Sent by AIO completion.  */
 146 # define SI_ASYNCIO     SI_ASYNCIO
 147   SI_QUEUE,                     /* Sent by sigqueue.  */
 148 # define SI_QUEUE       SI_QUEUE
 149   SI_USER,                      /* Sent by kill, sigsend, raise.  */
 150 # define SI_USER        SI_USER
 151   SI_KERNEL = 0x80              /* Send by kernel.  */
 152 #define SI_KERNEL       SI_KERNEL
 153 };
 154
 155
 156 /* `si_code' values for SIGILL signal.  */
 157 enum
 158 {
 159   ILL_ILLOPC = 1,               /* Illegal opcode.  */
 160 # define ILL_ILLOPC     ILL_ILLOPC
 161   ILL_ILLOPN,                   /* Illegal operand.  */
 162 # define ILL_ILLOPN     ILL_ILLOPN
 163   ILL_ILLADR,                   /* Illegal addressing mode.  */
 164 # define ILL_ILLADR     ILL_ILLADR
 165   ILL_ILLTRP,                   /* Illegal trap.  */
 166 # define ILL_ILLTRP     ILL_ILLTRP
 167   ILL_PRVOPC,                   /* Privileged opcode.  */
 168 # define ILL_PRVOPC     ILL_PRVOPC
 169   ILL_PRVREG,                   /* Privileged register.  */
 170 # define ILL_PRVREG     ILL_PRVREG
 171   ILL_COPROC,                   /* Coprocessor error.  */
 172 # define ILL_COPROC     ILL_COPROC
 173   ILL_BADSTK                    /* Internal stack error.  */
 174 # define ILL_BADSTK     ILL_BADSTK
 175 };
 176
 177 /* `si_code' values for SIGFPE signal.  */
 178 enum
 179 {
 180   FPE_INTDIV = 1,               /* Integer divide by zero.  */
 181 # define FPE_INTDIV     FPE_INTDIV
 182   FPE_INTOVF,                   /* Integer overflow.  */
 183 # define FPE_INTOVF     FPE_INTOVF
 184   FPE_FLTDIV,                   /* Floating point divide by zero.  */
 185 # define FPE_FLTDIV     FPE_FLTDIV
 186   FPE_FLTOVF,                   /* Floating point overflow.  */
 187 # define FPE_FLTOVF     FPE_FLTOVF
 188   FPE_FLTUND,                   /* Floating point underflow.  */
 189 # define FPE_FLTUND     FPE_FLTUND
 190   FPE_FLTRES,                   /* Floating point inexact result.  */
 191 # define FPE_FLTRES     FPE_FLTRES
 192   FPE_FLTINV,                   /* Floating point invalid operation.  */
 193 # define FPE_FLTINV     FPE_FLTINV
 194   FPE_FLTSUB                    /* Subscript out of range.  */
 195 # define FPE_FLTSUB     FPE_FLTSUB
 196 };
 197
 198 /* `si_code' values for SIGSEGV signal.  */
 199 enum
 200 {
 201   SEGV_MAPERR = 1,              /* Address not mapped to object.  */
 202 # define SEGV_MAPERR    SEGV_MAPERR
 203   SEGV_ACCERR                   /* Invalid permissions for mapped object.  */
 204 # define SEGV_ACCERR    SEGV_ACCERR
 205 };
 206
 207 /* `si_code' values for SIGBUS signal.  */
 208 enum
 209 {
 210   BUS_ADRALN = 1,               /* Invalid address alignment.  */
 211 # define BUS_ADRALN     BUS_ADRALN
 212   BUS_ADRERR,                   /* Non-existant physical address.  */
 213 # define BUS_ADRERR     BUS_ADRERR
 214   BUS_OBJERR                    /* Object specific hardware error.  */
 215 # define BUS_OBJERR     BUS_OBJERR
 216 };
 217
 218 /* `si_code' values for SIGTRAP signal.  */
 219 enum
 220 {
 221   TRAP_BRKPT = 1,               /* Process breakpoint.  */
 222 # define TRAP_BRKPT     TRAP_BRKPT
 223   TRAP_TRACE                    /* Process trace trap.  */
 224 # define TRAP_TRACE     TRAP_TRACE
 225 };
 226
 227 /* `si_code' values for SIGCHLD signal.  */
 228 enum
 229 {
 230   CLD_EXITED = 1,               /* Child has exited.  */
 231 # define CLD_EXITED     CLD_EXITED
 232   CLD_KILLED,                   /* Child was killed.  */
 233 # define CLD_KILLED     CLD_KILLED
 234   CLD_DUMPED,                   /* Child terminated abnormally.  */
 235 # define CLD_DUMPED     CLD_DUMPED
 236   CLD_TRAPPED,                  /* Traced child has trapped.  */
 237 # define CLD_TRAPPED    CLD_TRAPPED
 238   CLD_STOPPED,                  /* Child has stopped.  */
 239 # define CLD_STOPPED    CLD_STOPPED
 240   CLD_CONTINUED                 /* Stopped child has continued.  */
 241 # define CLD_CONTINUED  CLD_CONTINUED
 242 };
 243
 244 /* `si_code' values for SIGPOLL signal.  */
 245 enum
 246 {
 247   POLL_IN = 1,                  /* Data input available.  */
 248 # define POLL_IN        POLL_IN
 249   POLL_OUT,                     /* Output buffers available.  */
 250 # define POLL_OUT       POLL_OUT
 251   POLL_MSG,                     /* Input message available.   */
 252 # define POLL_MSG       POLL_MSG
 253   POLL_ERR,                     /* I/O error.  */
 254 # define POLL_ERR       POLL_ERR
 255   POLL_PRI,                     /* High priority input available.  */
 256 # define POLL_PRI       POLL_PRI
 257   POLL_HUP                      /* Device disconnected.  */
 258 # define POLL_HUP       POLL_HUP
 259 };
 260
 261 # undef __need_siginfo_t
 262 #endif  /* !have siginfo_t && (have _SIGNAL_H || need siginfo_t).  */
 263
 264
 265 #if (defined _SIGNAL_H || defined __need_sigevent_t) \
 266     && !defined __have_sigevent_t
 267 # define __have_sigevent_t      1
 268
 269 /* Structure to transport application-defined values with signals.  */
 270 # define __SIGEV_MAX_SIZE       64
 271 # if __WORDSIZE == 64
 272 #  define __SIGEV_PAD_SIZE      ((__SIGEV_MAX_SIZE / sizeof (int)) - 4)
 273 # else
 274 #  define __SIGEV_PAD_SIZE      ((__SIGEV_MAX_SIZE / sizeof (int)) - 3)
 275 # endif
 276
 277 typedef struct sigevent
 278   {
 279     sigval_t sigev_value;
 280     int sigev_signo;
 281     int sigev_notify;
 282
 283     union
 284       {
 285         int _pad[__SIGEV_PAD_SIZE];
 286
 287         /* When SIGEV_SIGNAL and SIGEV_THREAD_ID set, LWP ID of the
 288            thread to receive the signal.  */
 289         __pid_t _tid;
 290
 291         struct
 292           {
 293             void (*_function) (sigval_t);       /* Function to start.  */
 294             void *_attribute;                   /* Really pthread_attr_t.  */
 295           } _sigev_thread;
 296       } _sigev_un;
 297   } sigevent_t;
 298
 299 /* POSIX names to access some of the members.  */
 300 # define sigev_notify_function   _sigev_un._sigev_thread._function
 301 # define sigev_notify_attributes _sigev_un._sigev_thread._attribute
 302
 303 /* `sigev_notify' values.  */
 304 enum
 305 {
 306   SIGEV_SIGNAL = 0,             /* Notify via signal.  */
 307 # define SIGEV_SIGNAL   SIGEV_SIGNAL
 308   SIGEV_NONE,                   /* Other notification: meaningless.  */
 309 # define SIGEV_NONE     SIGEV_NONE
 310   SIGEV_THREAD,                 /* Deliver via thread creation.  */
 311 # define SIGEV_THREAD   SIGEV_THREAD
 312
 313   SIGEV_THREAD_ID = 4           /* Send signal to specific thread.  */
 314 #define SIGEV_THREAD_ID SIGEV_THREAD_ID
 315 };
 316
 317 #endif  /* have _SIGNAL_H.  */