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

   1 /* siginfo_t, sigevent and constants.  Linux/Alpha version.
   2    Copyright (C) 1997-2014 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             int si_trapno;      /* TRAP # which caused the signal.  */
  93             short int si_addr_lsb;      /* Valid LSB of the reported address.  */
  94           } _sigfault;
  95
  96         /* SIGPOLL.  */
  97         struct
  98           {
  99             int si_band;        /* Band event for SIGPOLL.  */
 100             int si_fd;
 101           } _sigpoll;
 102
 103         /* SIGSYS.  */
 104         struct
 105           {
 106             void *_call_addr;   /* Calling user insn.  */
 107             int _syscall;       /* Triggering system call number.  */
 108             unsigned int _arch; /* AUDIT_ARCH_* of syscall.  */
 109           } _sigsys;
 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_trapno      _sifields._sigfault.si_trapno
 127 # define si_addr_lsb    _sifields._sigfault.si_addr_lsb
 128 # define si_band        _sifields._sigpoll.si_band
 129 # define si_fd          _sifields._sigpoll.si_fd
 130 # define si_call_addr   _sifields._sigsys._call_addr
 131 # define si_syscall     _sifields._sigsys._syscall
 132 # define si_arch        _sifields._sigsys._arch
 133
 134
 135 /* Values for `si_code'.  Positive values are reserved for kernel-generated
 136    signals.  */
 137 enum
 138 {
 139   SI_ASYNCNL = -60,             /* Sent by asynch name lookup completion.  */
 140 # define SI_ASYNCNL     SI_ASYNCNL
 141   SI_TKILL = -6,                /* Sent by tkill.  */
 142 # define SI_TKILL       SI_TKILL
 143   SI_SIGIO,                     /* Sent by queued SIGIO. */
 144 # define SI_SIGIO       SI_SIGIO
 145   SI_ASYNCIO,                   /* Sent by AIO completion.  */
 146 # define SI_ASYNCIO     SI_ASYNCIO
 147   SI_MESGQ,                     /* Sent by real time mesq state change.  */
 148 # define SI_MESGQ       SI_MESGQ
 149   SI_TIMER,                     /* Sent by timer expiration.  */
 150 # define SI_TIMER       SI_TIMER
 151   SI_QUEUE,                     /* Sent by sigqueue.  */
 152 # define SI_QUEUE       SI_QUEUE
 153   SI_USER,                      /* Sent by kill, sigsend, raise.  */
 154 # define SI_USER        SI_USER
 155   SI_KERNEL = 0x80              /* Send by kernel.  */
 156 #define SI_KERNEL       SI_KERNEL
 157 };
 158
 159
 160 /* `si_code' values for SIGILL signal.  */
 161 enum
 162 {
 163   ILL_ILLOPC = 1,               /* Illegal opcode.  */
 164 # define ILL_ILLOPC     ILL_ILLOPC
 165   ILL_ILLOPN,                   /* Illegal operand.  */
 166 # define ILL_ILLOPN     ILL_ILLOPN
 167   ILL_ILLADR,                   /* Illegal addressing mode.  */
 168 # define ILL_ILLADR     ILL_ILLADR
 169   ILL_ILLTRP,                   /* Illegal trap. */
 170 # define ILL_ILLTRP     ILL_ILLTRP
 171   ILL_PRVOPC,                   /* Privileged opcode.  */
 172 # define ILL_PRVOPC     ILL_PRVOPC
 173   ILL_PRVREG,                   /* Privileged register.  */
 174 # define ILL_PRVREG     ILL_PRVREG
 175   ILL_COPROC,                   /* Coprocessor error.  */
 176 # define ILL_COPROC     ILL_COPROC
 177   ILL_BADSTK                    /* Internal stack error.  */
 178 # define ILL_BADSTK     ILL_BADSTK
 179 };
 180
 181 /* `si_code' values for SIGFPE signal.  */
 182 enum
 183 {
 184   FPE_INTDIV = 1,               /* Integer divide by zero.  */
 185 # define FPE_INTDIV     FPE_INTDIV
 186   FPE_INTOVF,                   /* Integer overflow.  */
 187 # define FPE_INTOVF     FPE_INTOVF
 188   FPE_FLTDIV,                   /* Floating point divide by zero.  */
 189 # define FPE_FLTDIV     FPE_FLTDIV
 190   FPE_FLTOVF,                   /* Floating point overflow.  */
 191 # define FPE_FLTOVF     FPE_FLTOVF
 192   FPE_FLTUND,                   /* Floating point underflow.  */
 193 # define FPE_FLTUND     FPE_FLTUND
 194   FPE_FLTRES,                   /* Floating point inexact result.  */
 195 # define FPE_FLTRES     FPE_FLTRES
 196   FPE_FLTINV,                   /* Floating point invalid operation.  */
 197 # define FPE_FLTINV     FPE_FLTINV
 198   FPE_FLTSUB                    /* Subscript out of range.  */
 199 # define FPE_FLTSUB     FPE_FLTSUB
 200 };
 201
 202 /* `si_code' values for SIGSEGV signal.  */
 203 enum
 204 {
 205   SEGV_MAPERR = 1,              /* Address not mapped to object.  */
 206 # define SEGV_MAPERR    SEGV_MAPERR
 207   SEGV_ACCERR                   /* Invalid permissions for mapped object.  */
 208 # define SEGV_ACCERR    SEGV_ACCERR
 209 };
 210
 211 /* `si_code' values for SIGBUS signal.  */
 212 enum
 213 {
 214   BUS_ADRALN = 1,               /* Invalid address alignment.  */
 215 # define BUS_ADRALN     BUS_ADRALN
 216   BUS_ADRERR,                   /* Non-existant physical address.  */
 217 # define BUS_ADRERR     BUS_ADRERR
 218   BUS_OBJERR,                   /* Object specific hardware error.  */
 219 # define BUS_OBJERR     BUS_OBJERR
 220   BUS_MCEERR_AR,                /* Hardware memory error: action required.  */
 221 # define BUS_MCEERR_AR  BUS_MCEERR_AR
 222   BUS_MCEERR_AO                 /* Hardware memory error: action optional.  */
 223 # define BUS_MCEERR_AO  BUS_MCEERR_AO
 224 };
 225
 226 /* `si_code' values for SIGTRAP signal.  */
 227 enum
 228 {
 229   TRAP_BRKPT = 1,               /* Process breakpoint.  */
 230 # define TRAP_BRKPT     TRAP_BRKPT
 231   TRAP_TRACE                    /* Process trace trap.  */
 232 # define TRAP_TRACE     TRAP_TRACE
 233 };
 234
 235 /* `si_code' values for SIGCHLD signal.  */
 236 enum
 237 {
 238   CLD_EXITED = 1,               /* Child has exited.  */
 239 # define CLD_EXITED     CLD_EXITED
 240   CLD_KILLED,                   /* Child was killed.  */
 241 # define CLD_KILLED     CLD_KILLED
 242   CLD_DUMPED,                   /* Child terminated abnormally.  */
 243 # define CLD_DUMPED     CLD_DUMPED
 244   CLD_TRAPPED,                  /* Traced child has trapped.  */
 245 # define CLD_TRAPPED    CLD_TRAPPED
 246   CLD_STOPPED,                  /* Child has stopped.  */
 247 # define CLD_STOPPED    CLD_STOPPED
 248   CLD_CONTINUED                 /* Stopped child has continued.  */
 249 # define CLD_CONTINUED  CLD_CONTINUED
 250 };
 251
 252 /* `si_code' values for SIGPOLL signal.  */
 253 enum
 254 {
 255   POLL_IN = 1,                  /* Data input available.  */
 256 # define POLL_IN        POLL_IN
 257   POLL_OUT,                     /* Output buffers available.  */
 258 # define POLL_OUT       POLL_OUT
 259   POLL_MSG,                     /* Input message available.   */
 260 # define POLL_MSG       POLL_MSG
 261   POLL_ERR,                     /* I/O error.  */
 262 # define POLL_ERR       POLL_ERR
 263   POLL_PRI,                     /* High priority input available.  */
 264 # define POLL_PRI       POLL_PRI
 265   POLL_HUP                      /* Device disconnected.  */
 266 # define POLL_HUP       POLL_HUP
 267 };
 268
 269 # undef __need_siginfo_t
 270 #endif  /* !have siginfo_t && (have _SIGNAL_H || need siginfo_t).  */
 271
 272
 273 #if (defined _SIGNAL_H || defined __need_sigevent_t) \
 274     && !defined __have_sigevent_t
 275 # define __have_sigevent_t      1
 276
 277 /* Structure to transport application-defined values with signals.  */
 278 # define __SIGEV_MAX_SIZE       64
 279 # define __SIGEV_PAD_SIZE       ((__SIGEV_MAX_SIZE / sizeof (int)) - 4)
 280
 281 /* Forward declaration.  */
 282 #ifndef __have_pthread_attr_t
 283 typedef union pthread_attr_t pthread_attr_t;
 284 # define __have_pthread_attr_t  1
 285 #endif
 286
 287 typedef struct sigevent
 288   {
 289     sigval_t sigev_value;
 290     int sigev_signo;
 291     int sigev_notify;
 292
 293     union
 294       {
 295         int _pad[__SIGEV_PAD_SIZE];
 296
 297         /* When SIGEV_SIGNAL and SIGEV_THREAD_ID set, LWP ID of the
 298            thread to receive the signal.  */
 299         __pid_t _tid;
 300
 301         struct
 302           {
 303             void (*_function) (sigval_t);       /* Function to start.  */
 304             pthread_attr_t *_attribute;         /* Thread attributes.  */
 305           } _sigev_thread;
 306       } _sigev_un;
 307   } sigevent_t;
 308
 309 /* POSIX names to access some of the members.  */
 310 # define sigev_notify_function   _sigev_un._sigev_thread._function
 311 # define sigev_notify_attributes _sigev_un._sigev_thread._attribute
 312
 313 /* `sigev_notify' values.  */
 314 enum
 315 {
 316   SIGEV_SIGNAL = 0,             /* Notify via signal.  */
 317 # define SIGEV_SIGNAL   SIGEV_SIGNAL
 318   SIGEV_NONE,                   /* Other notification: meaningless.  */
 319 # define SIGEV_NONE     SIGEV_NONE
 320   SIGEV_THREAD,                 /* Deliver via thread creation.  */
 321 # define SIGEV_THREAD   SIGEV_THREAD
 322
 323   SIGEV_THREAD_ID = 4           /* Send signal to specific thread.  */
 324 #define SIGEV_THREAD_ID SIGEV_THREAD_ID
 325 };
 326
 327 #endif  /* have _SIGNAL_H.  */