libc/sysdeps/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
   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, see
  18    <http://www.gnu.org/licenses/>.  */
  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 siginfo
  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             short int si_addr_lsb;      /* Valid LSB of the reported address.  */
 103           } _sigfault;
 104
 105         /* SIGPOLL.  */
 106         struct
 107           {
 108             long int si_band;   /* Band event for SIGPOLL.  */
 109             int si_fd;
 110           } _sigpoll;
 111
 112         /* SIGSYS.  */
 113         struct
 114           {
 115             void *_call_addr;   /* Calling user insn.  */
 116             int _syscall;       /* Triggering system call number.  */
 117             unsigned int _arch; /* AUDIT_ARCH_* of syscall.  */
 118           } _sigsys;
 119       } _sifields;
 120   } siginfo_t;
 121
 122
 123 /* X/Open requires some more fields with fixed names.  */
 124 # define si_pid         _sifields._kill.si_pid
 125 # define si_uid         _sifields._kill.si_uid
 126 # define si_timerid     _sifields._timer.si_tid
 127 # define si_overrun     _sifields._timer.si_overrun
 128 # define si_status      _sifields._sigchld.si_status
 129 # define si_utime       _sifields._sigchld.si_utime
 130 # define si_stime       _sifields._sigchld.si_stime
 131 # define si_value       _sifields._rt.si_sigval
 132 # define si_int         _sifields._rt.si_sigval.sival_int
 133 # define si_ptr         _sifields._rt.si_sigval.sival_ptr
 134 # define si_addr        _sifields._sigfault.si_addr
 135 # define si_addr_lsb    _sifields._sigfault.si_addr_lsb
 136 # define si_band        _sifields._sigpoll.si_band
 137 # define si_fd          _sifields._sigpoll.si_fd
 138 # define si_call_addr   _sifields._sigsys._call_addr
 139 # define si_syscall     _sifields._sigsys._syscall
 140 # define si_arch        _sifields._sigsys._arch
 141
 142
 143 /* Values for `si_code'.  Positive values are reserved for kernel-generated
 144    signals.  */
 145 enum
 146 {
 147   SI_ASYNCNL = -60,             /* Sent by asynch name lookup completion.  */
 148 # define SI_ASYNCNL     SI_ASYNCNL
 149   SI_TKILL = -6,                /* Sent by tkill.  */
 150 # define SI_TKILL       SI_TKILL
 151   SI_SIGIO,                     /* Sent by queued SIGIO.  */
 152 # define SI_SIGIO       SI_SIGIO
 153   SI_MESGQ,                     /* Sent by real time mesq state change.  */
 154 # define SI_MESGQ       SI_MESGQ
 155   SI_TIMER,                     /* Sent by real time mesq state change.  */
 156 # define SI_TIMER       SI_TIMER
 157   SI_ASYNCIO,                   /* Sent by AIO completion.  */
 158 # define SI_ASYNCIO     SI_ASYNCIO
 159   SI_QUEUE,                     /* Sent by sigqueue.  */
 160 # define SI_QUEUE       SI_QUEUE
 161   SI_USER,                      /* Sent by kill, sigsend.  */
 162 # define SI_USER        SI_USER
 163   SI_KERNEL = 0x80              /* Send by kernel.  */
 164 #define SI_KERNEL       SI_KERNEL
 165 };
 166
 167
 168 # if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
 169 /* `si_code' values for SIGILL signal.  */
 170 enum
 171 {
 172   ILL_ILLOPC = 1,               /* Illegal opcode.  */
 173 # define ILL_ILLOPC     ILL_ILLOPC
 174   ILL_ILLOPN,                   /* Illegal operand.  */
 175 # define ILL_ILLOPN     ILL_ILLOPN
 176   ILL_ILLADR,                   /* Illegal addressing mode.  */
 177 # define ILL_ILLADR     ILL_ILLADR
 178   ILL_ILLTRP,                   /* Illegal trap.  */
 179 # define ILL_ILLTRP     ILL_ILLTRP
 180   ILL_PRVOPC,                   /* Privileged opcode.  */
 181 # define ILL_PRVOPC     ILL_PRVOPC
 182   ILL_PRVREG,                   /* Privileged register.  */
 183 # define ILL_PRVREG     ILL_PRVREG
 184   ILL_COPROC,                   /* Coprocessor error.  */
 185 # define ILL_COPROC     ILL_COPROC
 186   ILL_BADSTK                    /* Internal stack error.  */
 187 # define ILL_BADSTK     ILL_BADSTK
 188 };
 189
 190 /* `si_code' values for SIGFPE signal.  */
 191 enum
 192 {
 193   FPE_INTDIV = 1,               /* Integer divide by zero.  */
 194 # define FPE_INTDIV     FPE_INTDIV
 195   FPE_INTOVF,                   /* Integer overflow.  */
 196 # define FPE_INTOVF     FPE_INTOVF
 197   FPE_FLTDIV,                   /* Floating point divide by zero.  */
 198 # define FPE_FLTDIV     FPE_FLTDIV
 199   FPE_FLTOVF,                   /* Floating point overflow.  */
 200 # define FPE_FLTOVF     FPE_FLTOVF
 201   FPE_FLTUND,                   /* Floating point underflow.  */
 202 # define FPE_FLTUND     FPE_FLTUND
 203   FPE_FLTRES,                   /* Floating point inexact result.  */
 204 # define FPE_FLTRES     FPE_FLTRES
 205   FPE_FLTINV,                   /* Floating point invalid operation.  */
 206 # define FPE_FLTINV     FPE_FLTINV
 207   FPE_FLTSUB                    /* Subscript out of range.  */
 208 # define FPE_FLTSUB     FPE_FLTSUB
 209 };
 210
 211 /* `si_code' values for SIGSEGV signal.  */
 212 enum
 213 {
 214   SEGV_MAPERR = 1,              /* Address not mapped to object.  */
 215 # define SEGV_MAPERR    SEGV_MAPERR
 216   SEGV_ACCERR                   /* Invalid permissions for mapped object.  */
 217 # define SEGV_ACCERR    SEGV_ACCERR
 218 };
 219
 220 /* `si_code' values for SIGBUS signal.  */
 221 enum
 222 {
 223   BUS_ADRALN = 1,               /* Invalid address alignment.  */
 224 # define BUS_ADRALN     BUS_ADRALN
 225   BUS_ADRERR,                   /* Non-existant physical address.  */
 226 # define BUS_ADRERR     BUS_ADRERR
 227   BUS_OBJERR,                   /* Object specific hardware error.  */
 228 # define BUS_OBJERR     BUS_OBJERR
 229   BUS_MCEERR_AR,                /* Hardware memory error: action required.  */
 230 #  define BUS_MCEERR_AR BUS_MCEERR_AR
 231   BUS_MCEERR_AO                 /* Hardware memory error: action optional.  */
 232 #  define BUS_MCEERR_AO BUS_MCEERR_AO
 233 };
 234 # endif
 235
 236 # ifdef __USE_XOPEN_EXTENDED
 237 /* `si_code' values for SIGTRAP signal.  */
 238 enum
 239 {
 240   TRAP_BRKPT = 1,               /* Process breakpoint.  */
 241 # define TRAP_BRKPT     TRAP_BRKPT
 242   TRAP_TRACE                    /* Process trace trap.  */
 243 # define TRAP_TRACE     TRAP_TRACE
 244 };
 245 # endif
 246
 247 # if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K8
 248 /* `si_code' values for SIGCHLD signal.  */
 249 enum
 250 {
 251   CLD_EXITED = 1,               /* Child has exited.  */
 252 # define CLD_EXITED     CLD_EXITED
 253   CLD_KILLED,                   /* Child was killed.  */
 254 # define CLD_KILLED     CLD_KILLED
 255   CLD_DUMPED,                   /* Child terminated abnormally.  */
 256 # define CLD_DUMPED     CLD_DUMPED
 257   CLD_TRAPPED,                  /* Traced child has trapped.  */
 258 # define CLD_TRAPPED    CLD_TRAPPED
 259   CLD_STOPPED,                  /* Child has stopped.  */
 260 # define CLD_STOPPED    CLD_STOPPED
 261   CLD_CONTINUED                 /* Stopped child has continued.  */
 262 # define CLD_CONTINUED  CLD_CONTINUED
 263 };
 264
 265 /* `si_code' values for SIGPOLL signal.  */
 266 enum
 267 {
 268   POLL_IN = 1,                  /* Data input available.  */
 269 # define POLL_IN        POLL_IN
 270   POLL_OUT,                     /* Output buffers available.  */
 271 # define POLL_OUT       POLL_OUT
 272   POLL_MSG,                     /* Input message available.   */
 273 # define POLL_MSG       POLL_MSG
 274   POLL_ERR,                     /* I/O error.  */
 275 # define POLL_ERR       POLL_ERR
 276   POLL_PRI,                     /* High priority input available.  */
 277 # define POLL_PRI       POLL_PRI
 278   POLL_HUP                      /* Device disconnected.  */
 279 # define POLL_HUP       POLL_HUP
 280 };
 281 # endif
 282
 283 # undef __need_siginfo_t
 284 #endif  /* !have siginfo_t && (have _SIGNAL_H || need siginfo_t).  */
 285
 286
 287 #if (defined _SIGNAL_H || defined __need_sigevent_t) \
 288     && !defined __have_sigevent_t
 289 # define __have_sigevent_t      1
 290
 291 /* Structure to transport application-defined values with signals.  */
 292 # define __SIGEV_MAX_SIZE       64
 293 # if __WORDSIZE == 64
 294 #  define __SIGEV_PAD_SIZE      ((__SIGEV_MAX_SIZE / sizeof (int)) - 4)
 295 # else
 296 #  define __SIGEV_PAD_SIZE      ((__SIGEV_MAX_SIZE / sizeof (int)) - 3)
 297 # endif
 298
 299 /* Forward declaration of the `pthread_attr_t' type.  */
 300 struct __pthread_attr_s;
 301
 302 /* XXX This one might need to change!!!  */
 303 typedef struct sigevent
 304   {
 305     sigval_t sigev_value;
 306     int sigev_signo;
 307     int sigev_notify;
 308
 309     union
 310       {
 311         int _pad[__SIGEV_PAD_SIZE];
 312
 313         /* When SIGEV_SIGNAL and SIGEV_THREAD_ID set, LWP ID of the
 314            thread to receive the signal.  */
 315         __pid_t _tid;
 316
 317         struct
 318           {
 319             void (*_function) (sigval_t);       /* Function to start.  */
 320             void *_attribute;                   /* Really pthread_attr_t.  */
 321           } _sigev_thread;
 322       } _sigev_un;
 323   } sigevent_t;
 324
 325 /* POSIX names to access some of the members.  */
 326 # define sigev_notify_function   _sigev_un._sigev_thread._function
 327 # define sigev_notify_attributes _sigev_un._sigev_thread._attribute
 328
 329 /* `sigev_notify' values.  */
 330 enum
 331 {
 332   SIGEV_SIGNAL = 0,             /* Notify via signal.  */
 333 # define SIGEV_SIGNAL   SIGEV_SIGNAL
 334   SIGEV_NONE,                   /* Other notification: meaningless.  */
 335 # define SIGEV_NONE     SIGEV_NONE
 336   SIGEV_THREAD,                 /* Deliver via thread creation.  */
 337 # define SIGEV_THREAD   SIGEV_THREAD
 338
 339   SIGEV_THREAD_ID = 4           /* Send signal to specific thread.  */
 340 #define SIGEV_THREAD_ID SIGEV_THREAD_ID
 341 };
 342
 343 #endif  /* have _SIGNAL_H.  */