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

   1 /* siginfo_t, sigevent and constants.  Linux/MIPS version.
   2    Copyright (C) 1997-2015 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             short int si_addr_lsb;      /* Valid LSB of the reported address.  */
 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_addr_lsb    _sifields._sigfault.si_addr_lsb
 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.  */
 150 # define SI_USER        SI_USER
 151   SI_KERNEL = 0x80              /* Send by kernel.  */
 152 #define SI_KERNEL       SI_KERNEL
 153 };
 154
 155
 156 # if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
 157 /* `si_code' values for SIGILL signal.  */
 158 enum
 159 {
 160   ILL_ILLOPC = 1,               /* Illegal opcode.  */
 161 #  define ILL_ILLOPC    ILL_ILLOPC
 162   ILL_ILLOPN,                   /* Illegal operand.  */
 163 #  define ILL_ILLOPN    ILL_ILLOPN
 164   ILL_ILLADR,                   /* Illegal addressing mode.  */
 165 #  define ILL_ILLADR    ILL_ILLADR
 166   ILL_ILLTRP,                   /* Illegal trap.  */
 167 #  define ILL_ILLTRP    ILL_ILLTRP
 168   ILL_PRVOPC,                   /* Privileged opcode.  */
 169 #  define ILL_PRVOPC    ILL_PRVOPC
 170   ILL_PRVREG,                   /* Privileged register.  */
 171 #  define ILL_PRVREG    ILL_PRVREG
 172   ILL_COPROC,                   /* Coprocessor error.  */
 173 #  define ILL_COPROC    ILL_COPROC
 174   ILL_BADSTK                    /* Internal stack error.  */
 175 #  define ILL_BADSTK    ILL_BADSTK
 176 };
 177
 178 /* `si_code' values for SIGFPE signal.  */
 179 enum
 180 {
 181   FPE_INTDIV = 1,               /* Integer divide by zero.  */
 182 #  define FPE_INTDIV    FPE_INTDIV
 183   FPE_INTOVF,                   /* Integer overflow.  */
 184 #  define FPE_INTOVF    FPE_INTOVF
 185   FPE_FLTDIV,                   /* Floating point divide by zero.  */
 186 #  define FPE_FLTDIV    FPE_FLTDIV
 187   FPE_FLTOVF,                   /* Floating point overflow.  */
 188 #  define FPE_FLTOVF    FPE_FLTOVF
 189   FPE_FLTUND,                   /* Floating point underflow.  */
 190 #  define FPE_FLTUND    FPE_FLTUND
 191   FPE_FLTRES,                   /* Floating point inexact result.  */
 192 #  define FPE_FLTRES    FPE_FLTRES
 193   FPE_FLTINV,                   /* Floating point invalid operation.  */
 194 #  define FPE_FLTINV    FPE_FLTINV
 195   FPE_FLTSUB                    /* Subscript out of range.  */
 196 #  define FPE_FLTSUB    FPE_FLTSUB
 197 };
 198
 199 /* `si_code' values for SIGSEGV signal.  */
 200 enum
 201 {
 202   SEGV_MAPERR = 1,              /* Address not mapped to object.  */
 203 #  define SEGV_MAPERR   SEGV_MAPERR
 204   SEGV_ACCERR                   /* Invalid permissions for mapped object.  */
 205 #  define SEGV_ACCERR   SEGV_ACCERR
 206 };
 207
 208 /* `si_code' values for SIGBUS signal.  */
 209 enum
 210 {
 211   BUS_ADRALN = 1,               /* Invalid address alignment.  */
 212 #  define BUS_ADRALN    BUS_ADRALN
 213   BUS_ADRERR,                   /* Non-existant physical address.  */
 214 #  define BUS_ADRERR    BUS_ADRERR
 215   BUS_OBJERR,                   /* Object specific hardware error.  */
 216 #  define BUS_OBJERR    BUS_OBJERR
 217   BUS_MCEERR_AR,                /* Hardware memory error: action required.  */
 218 #  define BUS_MCEERR_AR BUS_MCEERR_AR
 219   BUS_MCEERR_AO                 /* Hardware memory error: action optional.  */
 220 #  define BUS_MCEERR_AO BUS_MCEERR_AO
 221 };
 222 # endif
 223
 224 # ifdef __USE_XOPEN_EXTENDED
 225 /* `si_code' values for SIGTRAP signal.  */
 226 enum
 227 {
 228   TRAP_BRKPT = 1,               /* Process breakpoint.  */
 229 #  define TRAP_BRKPT    TRAP_BRKPT
 230   TRAP_TRACE                    /* Process trace trap.  */
 231 #  define TRAP_TRACE    TRAP_TRACE
 232 };
 233 # endif
 234
 235 # if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
 236 /* `si_code' values for SIGCHLD signal.  */
 237 enum
 238 {
 239   CLD_EXITED = 1,               /* Child has exited.  */
 240 #  define CLD_EXITED    CLD_EXITED
 241   CLD_KILLED,                   /* Child was killed.  */
 242 #  define CLD_KILLED    CLD_KILLED
 243   CLD_DUMPED,                   /* Child terminated abnormally.  */
 244 #  define CLD_DUMPED    CLD_DUMPED
 245   CLD_TRAPPED,                  /* Traced child has trapped.  */
 246 #  define CLD_TRAPPED   CLD_TRAPPED
 247   CLD_STOPPED,                  /* Child has stopped.  */
 248 #  define CLD_STOPPED   CLD_STOPPED
 249   CLD_CONTINUED                 /* Stopped child has continued.  */
 250 #  define CLD_CONTINUED CLD_CONTINUED
 251 };
 252
 253 /* `si_code' values for SIGPOLL signal.  */
 254 enum
 255 {
 256   POLL_IN = 1,                  /* Data input available.  */
 257 #  define POLL_IN       POLL_IN
 258   POLL_OUT,                     /* Output buffers available.  */
 259 #  define POLL_OUT      POLL_OUT
 260   POLL_MSG,                     /* Input message available.   */
 261 #  define POLL_MSG      POLL_MSG
 262   POLL_ERR,                     /* I/O error.  */
 263 #  define POLL_ERR      POLL_ERR
 264   POLL_PRI,                     /* High priority input available.  */
 265 #  define POLL_PRI      POLL_PRI
 266   POLL_HUP                      /* Device disconnected.  */
 267 #  define POLL_HUP      POLL_HUP
 268 };
 269 # endif
 270
 271 # undef __need_siginfo_t
 272 #endif  /* !have siginfo_t && (have _SIGNAL_H || need siginfo_t).  */
 273
 274
 275 #if (defined _SIGNAL_H || defined __need_sigevent_t) \
 276     && !defined __have_sigevent_t
 277 # define __have_sigevent_t      1
 278
 279 /* Structure to transport application-defined values with signals.  */
 280 # define __SIGEV_MAX_SIZE       64
 281 # if __WORDSIZE == 64
 282 #  define __SIGEV_PAD_SIZE      ((__SIGEV_MAX_SIZE / sizeof (int)) - 4)
 283 # else
 284 #  define __SIGEV_PAD_SIZE      ((__SIGEV_MAX_SIZE / sizeof (int)) - 3)
 285 # endif
 286
 287 /* Forward declaration.  */
 288 # ifndef __have_pthread_attr_t
 289 typedef union pthread_attr_t pthread_attr_t;
 290 #  define __have_pthread_attr_t 1
 291 # endif
 292
 293 typedef struct sigevent
 294   {
 295     sigval_t sigev_value;
 296     int sigev_signo;
 297     int sigev_notify;
 298
 299     union
 300       {
 301         int _pad[__SIGEV_PAD_SIZE];
 302
 303         /* When SIGEV_SIGNAL and SIGEV_THREAD_ID set, LWP ID of the
 304            thread to receive the signal.  */
 305         __pid_t _tid;
 306
 307         struct
 308           {
 309             void (*_function) (sigval_t);       /* Function to start.  */
 310             pthread_attr_t *_attribute;         /* Thread attributes.  */
 311           } _sigev_thread;
 312       } _sigev_un;
 313   } sigevent_t;
 314
 315 /* POSIX names to access some of the members.  */
 316 # define sigev_notify_function   _sigev_un._sigev_thread._function
 317 # define sigev_notify_attributes _sigev_un._sigev_thread._attribute
 318
 319 /* `sigev_notify' values.  */
 320 enum
 321 {
 322   SIGEV_SIGNAL = 0,             /* Notify via signal.  */
 323 # define SIGEV_SIGNAL   SIGEV_SIGNAL
 324   SIGEV_NONE,                   /* Other notification: meaningless.  */
 325 # define SIGEV_NONE     SIGEV_NONE
 326   SIGEV_THREAD,                 /* Deliver via thread creation.  */
 327 # define SIGEV_THREAD   SIGEV_THREAD
 328
 329   SIGEV_THREAD_ID = 4           /* Send signal to specific thread.  */
 330 #define SIGEV_THREAD_ID SIGEV_THREAD_ID
 331 };
 332
 333 #endif  /* have _SIGNAL_H.  */