ports/sysdeps/unix/sysv/linux/alpha/bits/siginfo.h

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