ports/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, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #if !defined _SIGNAL_H && !defined __need_siginfo_t \
  20     && !defined __need_sigevent_t
  21 # error "Never include this file directly.  Use <signal.h> instead"
  22 #endif
  23
  24 #include <bits/wordsize.h>
  25
  26 #if (!defined __have_sigval_t \
  27      && (defined _SIGNAL_H || defined __need_siginfo_t \
  28          || defined __need_sigevent_t))
  29 # define __have_sigval_t        1
  30
  31 /* Type for data associated with a signal.  */
  32 typedef union sigval
  33   {
  34     int sival_int;
  35     void *sival_ptr;
  36   } sigval_t;
  37 #endif
  38
  39 #if (!defined __have_siginfo_t \
  40      && (defined _SIGNAL_H || defined __need_siginfo_t))
  41 # define __have_siginfo_t       1
  42
  43 # define __SI_MAX_SIZE          128
  44 # if __WORDSIZE == 64
  45 #  define __SI_PAD_SIZE         ((__SI_MAX_SIZE / sizeof (int)) - 4)
  46 # else
  47 #  define __SI_PAD_SIZE         ((__SI_MAX_SIZE / sizeof (int)) - 3)
  48 # endif
  49
  50
  51 typedef struct
  52   {
  53     int si_signo;               /* Signal number.  */
  54     int si_code;                /* Signal code.  */
  55     int si_errno;               /* If non-zero, an errno value associated with
  56                                    this signal, as defined in <errno.h>.  */
  57     int __pad0[__SI_MAX_SIZE / sizeof (int) - __SI_PAD_SIZE - 3];
  58                                 /* Explicit padding.  */
  59
  60     union
  61       {
  62         int _pad[__SI_PAD_SIZE];
  63
  64          /* kill().  */
  65         struct
  66           {
  67             __pid_t si_pid;     /* Sending process ID.  */
  68             __uid_t si_uid;     /* Real user ID of sending process.  */
  69           } _kill;
  70
  71         /* POSIX.1b timers.  */
  72         struct
  73           {
  74             int si_tid;         /* Timer ID.  */
  75             int si_overrun;     /* Overrun count.  */
  76             sigval_t si_sigval; /* Signal value.  */
  77           } _timer;
  78
  79         /* POSIX.1b signals.  */
  80         struct
  81           {
  82             __pid_t si_pid;     /* Sending process ID.  */
  83             __uid_t si_uid;     /* Real user ID of sending process.  */
  84             sigval_t si_sigval; /* Signal value.  */
  85           } _rt;
  86
  87         /* SIGCHLD.  */
  88         struct
  89           {
  90             __pid_t si_pid;     /* Which child.  */
  91             __uid_t si_uid;     /* Real user ID of sending process.  */
  92             int si_status;      /* Exit value or signal.  */
  93             __clock_t si_utime;
  94             __clock_t si_stime;
  95           } _sigchld;
  96
  97         /* SIGILL, SIGFPE, SIGSEGV, SIGBUS.  */
  98         struct
  99           {
 100             void *si_addr;      /* Faulting insn/memory ref.  */
 101           } _sigfault;
 102
 103         /* SIGPOLL.  */
 104         struct
 105           {
 106             long int si_band;   /* Band event for SIGPOLL.  */
 107             int si_fd;
 108           } _sigpoll;
 109       } _sifields;
 110   } siginfo_t;
 111
 112
 113 /* X/Open requires some more fields with fixed names.  */
 114 # define si_pid         _sifields._kill.si_pid
 115 # define si_uid         _sifields._kill.si_uid
 116 # define si_timerid     _sifields._timer.si_tid
 117 # define si_overrun     _sifields._timer.si_overrun
 118 # define si_status      _sifields._sigchld.si_status
 119 # define si_utime       _sifields._sigchld.si_utime
 120 # define si_stime       _sifields._sigchld.si_stime
 121 # define si_value       _sifields._rt.si_sigval
 122 # define si_int         _sifields._rt.si_sigval.sival_int
 123 # define si_ptr         _sifields._rt.si_sigval.sival_ptr
 124 # define si_addr        _sifields._sigfault.si_addr
 125 # define si_band        _sifields._sigpoll.si_band
 126 # define si_fd          _sifields._sigpoll.si_fd
 127
 128
 129 /* Values for `si_code'.  Positive values are reserved for kernel-generated
 130    signals.  */
 131 enum
 132 {
 133   SI_ASYNCNL = -60,             /* Sent by asynch name lookup completion.  */
 134 # define SI_ASYNCNL     SI_ASYNCNL
 135   SI_TKILL = -6,                /* Sent by tkill.  */
 136 # define SI_TKILL       SI_TKILL
 137   SI_SIGIO,                     /* Sent by queued SIGIO.  */
 138 # define SI_SIGIO       SI_SIGIO
 139   SI_MESGQ,                     /* Sent by real time mesq state change.  */
 140 # define SI_MESGQ       SI_MESGQ
 141   SI_TIMER,                     /* Sent by real time mesq state change.  */
 142 # define SI_TIMER       SI_TIMER
 143   SI_ASYNCIO,                   /* Sent by AIO completion.  */
 144 # define SI_ASYNCIO     SI_ASYNCIO
 145   SI_QUEUE,                     /* Sent by sigqueue.  */
 146 # define SI_QUEUE       SI_QUEUE
 147   SI_USER,                      /* Sent by kill, sigsend.  */
 148 # define SI_USER        SI_USER
 149   SI_KERNEL = 0x80              /* Send by kernel.  */
 150 #define SI_KERNEL       SI_KERNEL
 151 };
 152
 153
 154 /* `si_code' values for SIGILL signal.  */
 155 enum
 156 {
 157   ILL_ILLOPC = 1,               /* Illegal opcode.  */
 158 # define ILL_ILLOPC     ILL_ILLOPC
 159   ILL_ILLOPN,                   /* Illegal operand.  */
 160 # define ILL_ILLOPN     ILL_ILLOPN
 161   ILL_ILLADR,                   /* Illegal addressing mode.  */
 162 # define ILL_ILLADR     ILL_ILLADR
 163   ILL_ILLTRP,                   /* Illegal trap.  */
 164 # define ILL_ILLTRP     ILL_ILLTRP
 165   ILL_PRVOPC,                   /* Privileged opcode.  */
 166 # define ILL_PRVOPC     ILL_PRVOPC
 167   ILL_PRVREG,                   /* Privileged register.  */
 168 # define ILL_PRVREG     ILL_PRVREG
 169   ILL_COPROC,                   /* Coprocessor error.  */
 170 # define ILL_COPROC     ILL_COPROC
 171   ILL_BADSTK                    /* Internal stack error.  */
 172 # define ILL_BADSTK     ILL_BADSTK
 173 };
 174
 175 /* `si_code' values for SIGFPE signal.  */
 176 enum
 177 {
 178   FPE_INTDIV = 1,               /* Integer divide by zero.  */
 179 # define FPE_INTDIV     FPE_INTDIV
 180   FPE_INTOVF,                   /* Integer overflow.  */
 181 # define FPE_INTOVF     FPE_INTOVF
 182   FPE_FLTDIV,                   /* Floating point divide by zero.  */
 183 # define FPE_FLTDIV     FPE_FLTDIV
 184   FPE_FLTOVF,                   /* Floating point overflow.  */
 185 # define FPE_FLTOVF     FPE_FLTOVF
 186   FPE_FLTUND,                   /* Floating point underflow.  */
 187 # define FPE_FLTUND     FPE_FLTUND
 188   FPE_FLTRES,                   /* Floating point inexact result.  */
 189 # define FPE_FLTRES     FPE_FLTRES
 190   FPE_FLTINV,                   /* Floating point invalid operation.  */
 191 # define FPE_FLTINV     FPE_FLTINV
 192   FPE_FLTSUB                    /* Subscript out of range.  */
 193 # define FPE_FLTSUB     FPE_FLTSUB
 194 };
 195
 196 /* `si_code' values for SIGSEGV signal.  */
 197 enum
 198 {
 199   SEGV_MAPERR = 1,              /* Address not mapped to object.  */
 200 # define SEGV_MAPERR    SEGV_MAPERR
 201   SEGV_ACCERR                   /* Invalid permissions for mapped object.  */
 202 # define SEGV_ACCERR    SEGV_ACCERR
 203 };
 204
 205 /* `si_code' values for SIGBUS signal.  */
 206 enum
 207 {
 208   BUS_ADRALN = 1,               /* Invalid address alignment.  */
 209 # define BUS_ADRALN     BUS_ADRALN
 210   BUS_ADRERR,                   /* Non-existant physical address.  */
 211 # define BUS_ADRERR     BUS_ADRERR
 212   BUS_OBJERR                    /* Object specific hardware error.  */
 213 # define BUS_OBJERR     BUS_OBJERR
 214 };
 215
 216 /* `si_code' values for SIGTRAP signal.  */
 217 enum
 218 {
 219   TRAP_BRKPT = 1,               /* Process breakpoint.  */
 220 # define TRAP_BRKPT     TRAP_BRKPT
 221   TRAP_TRACE                    /* Process trace trap.  */
 222 # define TRAP_TRACE     TRAP_TRACE
 223 };
 224
 225 /* `si_code' values for SIGCHLD signal.  */
 226 enum
 227 {
 228   CLD_EXITED = 1,               /* Child has exited.  */
 229 # define CLD_EXITED     CLD_EXITED
 230   CLD_KILLED,                   /* Child was killed.  */
 231 # define CLD_KILLED     CLD_KILLED
 232   CLD_DUMPED,                   /* Child terminated abnormally.  */
 233 # define CLD_DUMPED     CLD_DUMPED
 234   CLD_TRAPPED,                  /* Traced child has trapped.  */
 235 # define CLD_TRAPPED    CLD_TRAPPED
 236   CLD_STOPPED,                  /* Child has stopped.  */
 237 # define CLD_STOPPED    CLD_STOPPED
 238   CLD_CONTINUED                 /* Stopped child has continued.  */
 239 # define CLD_CONTINUED  CLD_CONTINUED
 240 };
 241
 242 /* `si_code' values for SIGPOLL signal.  */
 243 enum
 244 {
 245   POLL_IN = 1,                  /* Data input available.  */
 246 # define POLL_IN        POLL_IN
 247   POLL_OUT,                     /* Output buffers available.  */
 248 # define POLL_OUT       POLL_OUT
 249   POLL_MSG,                     /* Input message available.   */
 250 # define POLL_MSG       POLL_MSG
 251   POLL_ERR,                     /* I/O error.  */
 252 # define POLL_ERR       POLL_ERR
 253   POLL_PRI,                     /* High priority input available.  */
 254 # define POLL_PRI       POLL_PRI
 255   POLL_HUP                      /* Device disconnected.  */
 256 # define POLL_HUP       POLL_HUP
 257 };
 258
 259 # undef __need_siginfo_t
 260 #endif  /* !have siginfo_t && (have _SIGNAL_H || need siginfo_t).  */
 261
 262
 263 #if (defined _SIGNAL_H || defined __need_sigevent_t) \
 264     && !defined __have_sigevent_t
 265 # define __have_sigevent_t      1
 266
 267 /* Structure to transport application-defined values with signals.  */
 268 # define __SIGEV_MAX_SIZE       64
 269 # if __WORDSIZE == 64
 270 #  define __SIGEV_PAD_SIZE      ((__SIGEV_MAX_SIZE / sizeof (int)) - 4)
 271 # else
 272 #  define __SIGEV_PAD_SIZE      ((__SIGEV_MAX_SIZE / sizeof (int)) - 3)
 273 # endif
 274
 275 /* Forward declaration.  */
 276 # ifndef __have_pthread_attr_t
 277 typedef union pthread_attr_t pthread_attr_t;
 278 #  define __have_pthread_attr_t 1
 279 # endif
 280
 281 typedef struct sigevent
 282   {
 283     sigval_t sigev_value;
 284     int sigev_signo;
 285     int sigev_notify;
 286
 287     union
 288       {
 289         int _pad[__SIGEV_PAD_SIZE];
 290
 291         /* When SIGEV_SIGNAL and SIGEV_THREAD_ID set, LWP ID of the
 292            thread to receive the signal.  */
 293         __pid_t _tid;
 294
 295         struct
 296           {
 297             void (*_function) (sigval_t);       /* Function to start.  */
 298             pthread_attr_t *_attribute;         /* Thread attributes.  */
 299           } _sigev_thread;
 300       } _sigev_un;
 301   } sigevent_t;
 302
 303 /* POSIX names to access some of the members.  */
 304 # define sigev_notify_function   _sigev_un._sigev_thread._function
 305 # define sigev_notify_attributes _sigev_un._sigev_thread._attribute
 306
 307 /* `sigev_notify' values.  */
 308 enum
 309 {
 310   SIGEV_SIGNAL = 0,             /* Notify via signal.  */
 311 # define SIGEV_SIGNAL   SIGEV_SIGNAL
 312   SIGEV_NONE,                   /* Other notification: meaningless.  */
 313 # define SIGEV_NONE     SIGEV_NONE
 314   SIGEV_THREAD,                 /* Deliver via thread creation.  */
 315 # define SIGEV_THREAD   SIGEV_THREAD
 316
 317   SIGEV_THREAD_ID = 4           /* Send signal to specific thread.  */
 318 #define SIGEV_THREAD_ID SIGEV_THREAD_ID
 319 };
 320
 321 #endif  /* have _SIGNAL_H.  */