sysdeps/unix/sysv/bits/signum.h

   1 /* Signal number definitions.  System V version.
   2    Copyright (C) 1991, 1992, 1993, 1996 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 #ifdef  _SIGNAL_H
  20
  21 /* This file defines the fake signal functions and signal
  22    number constants for System V release 3.  */
  23
  24 /* Fake signal functions.  */
  25 #define SIG_ERR ((__sighandler_t) -1) /* Error return.  */
  26 #define SIG_DFL ((__sighandler_t) 0) /* Default action.  */
  27 #define SIG_IGN ((__sighandler_t) 1) /* Ignore signal.  */
  28
  29
  30 /* Signals.  */
  31 #define SIGHUP          1       /* Hangup (POSIX).  */
  32 #define SIGINT          2       /* Interrupt (ANSI).  */
  33 #define SIGQUIT         3       /* Quit (POSIX).  */
  34 #define SIGILL          4       /* Illegal instruction (ANSI).  */
  35 #define SIGABRT         SIGIOT  /* Abort (ANSI).  */
  36 #define SIGTRAP         5       /* Trace trap (POSIX).  */
  37 #define SIGIOT          6       /* IOT trap (4.2 BSD).  */
  38 #define SIGEMT          7       /* EMT trap (4.2 BSD).  */
  39 #define SIGFPE          8       /* Floating-point exception (ANSI).  */
  40 #define SIGKILL         9       /* Kill, unblockable (POSIX).  */
  41 #define SIGBUS          10      /* Bus error (4.2 BSD).  */
  42 #define SIGSEGV         11      /* Segmentation violation (ANSI).  */
  43 #define SIGSYS          12      /* Bad argument to system call (4.2 BSD)*/
  44 #define SIGPIPE         13      /* Broken pipe (POSIX).  */
  45 #define SIGALRM         14      /* Alarm clock (POSIX).  */
  46 #define SIGTERM         15      /* Termination (ANSI).  */
  47 #define SIGUSR1         16      /* User-defined signal 1 (POSIX).  */
  48 #define SIGUSR2         17      /* User-defined signal 2 (POSIX).  */
  49 #define SIGCHLD         18      /* Child status has changed (POSIX).  */
  50 #define SIGCLD          SIGCHLD /* Same as SIGCHLD (System V).  */
  51 #define SIGPWR          19      /* Power failure restart (System V).  */
  52
  53 #endif  /* <signal.h> included.  */
  54
  55 #define _NSIG           20      /* Biggest signal number + 1.  */