bits/siginfo.h

   1 /* siginfo_t, sigevent and constants.  Stub version.
   2    Copyright (C) 1997, 1998, 2000, 2001 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 typedef struct siginfo
  42   {
  43     int si_signo;               /* Signal number.  */
  44     int si_errno;               /* If non-zero, an errno value associated with
  45                                    this signal, as defined in <errno.h>.  */
  46     int si_code;                /* Signal code.  */
  47     __pid_t si_pid;             /* Sending process ID.  */
  48     __uid_t si_uid;             /* Real user ID of sending process.  */
  49     void *si_addr;              /* Address of faulting instruction.  */
  50     int si_status;              /* Exit value or signal.  */
  51     long int si_band;           /* Band event for SIGPOLL.  */
  52     union sigval si_value;      /* Signal value.  */
  53   } siginfo_t;
  54
  55
  56 /* Values for `si_code'.  Positive values are reserved for kernel-generated
  57    signals.  */
  58 enum
  59 {
  60   SI_ASYNCIO = -4,              /* Sent by AIO completion.  */
  61 # define SI_ASYNCIO     SI_ASYNCIO
  62   SI_MESGQ,                     /* Sent by real time mesq state change.  */
  63 # define SI_MESGQ       SI_MESGQ
  64   SI_TIMER,                     /* Sent by timer expiration.  */
  65 # define SI_TIMER       SI_TIMER
  66   SI_QUEUE,                     /* Sent by sigqueue.  */
  67 # define SI_QUEUE       SI_QUEUE
  68   SI_USER                       /* Sent by kill, sigsend, raise.  */
  69 # define SI_USER        SI_USER
  70 };
  71
  72
  73 /* `si_code' values for SIGILL signal.  */
  74 enum
  75 {
  76   ILL_ILLOPC = 1,               /* Illegal opcode.  */
  77 # define ILL_ILLOPC     ILL_ILLOPC
  78   ILL_ILLOPN,                   /* Illegal operand.  */
  79 # define ILL_ILLOPN     ILL_ILLOPN
  80   ILL_ILLADR,                   /* Illegal addressing mode.  */
  81 # define ILL_ILLADR     ILL_ILLADR
  82   ILL_ILLTRP,                   /* Illegal trap. */
  83 # define ILL_ILLTRP     ILL_ILLTRP
  84   ILL_PRVOPC,                   /* Privileged opcode.  */
  85 # define ILL_PRVOPC     ILL_PRVOPC
  86   ILL_PRVREG,                   /* Privileged register.  */
  87 # define ILL_PRVREG     ILL_PRVREG
  88   ILL_COPROC,                   /* Coprocessor error.  */
  89 # define ILL_COPROC     ILL_COPROC
  90   ILL_BADSTK                    /* Internal stack error.  */
  91 # define ILL_BADSTK     ILL_BADSTK
  92 };
  93
  94 /* `si_code' values for SIGFPE signal.  */
  95 enum
  96 {
  97   FPE_INTDIV = 1,               /* Integer divide by zero.  */
  98 # define FPE_INTDIV     FPE_INTDIV
  99   FPE_INTOVF,                   /* Integer overflow.  */
 100 # define FPE_INTOVF     FPE_INTOVF
 101   FPE_FLTDIV,                   /* Floating point divide by zero.  */
 102 # define FPE_FLTDIV     FPE_FLTDIV
 103   FPE_FLTOVF,                   /* Floating point overflow.  */
 104 # define FPE_FLTOVF     FPE_FLTOVF
 105   FPE_FLTUND,                   /* Floating point underflow.  */
 106 # define FPE_FLTUND     FPE_FLTUND
 107   FPE_FLTRES,                   /* Floating point inexact result.  */
 108 # define FPE_FLTRES     FPE_FLTRES
 109   FPE_FLTINV,                   /* Floating point invalid operation.  */
 110 # define FPE_FLTINV     FPE_FLTINV
 111   FPE_FLTSUB                    /* Subscript out of range.  */
 112 # define FPE_FLTSUB     FPE_FLTSUB
 113 };
 114
 115 /* `si_code' values for SIGSEGV signal.  */
 116 enum
 117 {
 118   SEGV_MAPERR = 1,              /* Address not mapped to object.  */
 119 # define SEGV_MAPERR    SEGV_MAPERR
 120   SEGV_ACCERR                   /* Invalid permissions for mapped object.  */
 121 # define SEGV_ACCERR    SEGV_ACCERR
 122 };
 123
 124 /* `si_code' values for SIGBUS signal.  */
 125 enum
 126 {
 127   BUS_ADRALN = 1,               /* Invalid address alignment.  */
 128 # define BUS_ADRALN     BUS_ADRALN
 129   BUS_ADRERR,                   /* Non-existant physical address.  */
 130 # define BUS_ADRERR     BUS_ADRERR
 131   BUS_OBJERR                    /* Object specific hardware error.  */
 132 # define BUS_OBJERR     BUS_OBJERR
 133 };
 134
 135 /* `si_code' values for SIGTRAP signal.  */
 136 enum
 137 {
 138   TRAP_BRKPT = 1,               /* Process breakpoint.  */
 139 # define TRAP_BRKPT     TRAP_BRKPT
 140   TRAP_TRACE                    /* Process trace trap.  */
 141 # define TRAP_TRACE     TRAP_TRACE
 142 };
 143
 144 /* `si_code' values for SIGCHLD signal.  */
 145 enum
 146 {
 147   CLD_EXITED = 1,               /* Child has exited.  */
 148 # define CLD_EXITED     CLD_EXITED
 149   CLD_KILLED,                   /* Child was killed.  */
 150 # define CLD_KILLED     CLD_KILLED
 151   CLD_DUMPED,                   /* Child terminated abnormally.  */
 152 # define CLD_DUMPED     CLD_DUMPED
 153   CLD_TRAPPED,                  /* Traced child has trapped.  */
 154 # define CLD_TRAPPED    CLD_TRAPPED
 155   CLD_STOPPED,                  /* Child has stopped.  */
 156 # define CLD_STOPPED    CLD_STOPPED
 157   CLD_CONTINUED                 /* Stopped child has continued.  */
 158 # define CLD_CONTINUED  CLD_CONTINUED
 159 };
 160
 161 /* `si_code' values for SIGPOLL signal.  */
 162 enum
 163 {
 164   POLL_IN = 1,                  /* Data input available.  */
 165 # define POLL_IN        POLL_IN
 166   POLL_OUT,                     /* Output buffers available.  */
 167 # define POLL_OUT       POLL_OUT
 168   POLL_MSG,                     /* Input message available.   */
 169 # define POLL_MSG       POLL_MSG
 170   POLL_ERR,                     /* I/O error.  */
 171 # define POLL_ERR       POLL_ERR
 172   POLL_PRI,                     /* High priority input available.  */
 173 # define POLL_PRI       POLL_PRI
 174   POLL_HUP                      /* Device disconnected.  */
 175 # define POLL_HUP       POLL_HUP
 176 };
 177
 178 # undef __need_siginfo_t
 179 #endif  /* !have siginfo_t && (have _SIGNAL_H || need siginfo_t).  */
 180
 181
 182 #if (defined _SIGNAL_H || defined __need_sigevent_t) \
 183     && !defined __have_sigevent_t
 184 # define __have_sigevent_t      1
 185
 186 /* Structure to transport application-defined values with signals.  */
 187 # define SIGEV_MAX_SIZE 64
 188 # define SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE / sizeof (int)) - 3)
 189
 190 typedef struct sigevent
 191   {
 192     sigval_t sigev_value;
 193     int sigev_signo;
 194     int sigev_notify;
 195     void (*sigev_notify_function) (sigval_t);       /* Function to start.  */
 196     void *sigev_notify_attributes;                  /* Really pthread_attr_t.*/
 197   } sigevent_t;
 198
 199 /* `sigev_notify' values.  */
 200 enum
 201 {
 202   SIGEV_SIGNAL = 0,             /* Notify via signal.  */
 203 # define SIGEV_SIGNAL   SIGEV_SIGNAL
 204   SIGEV_NONE,                   /* Other notification: meaningless.  */
 205 # define SIGEV_NONE     SIGEV_NONE
 206   SIGEV_THREAD                  /* Deliver via thread creation.  */
 207 # define SIGEV_THREAD   SIGEV_THREAD
 208 };
 209
 210 #endif  /* have _SIGNAL_H.  */