sysdeps/unix/sysv/linux/bits/signum.h

   1 /* Signal number definitions.  Linux version.
   2    Copyright (C) 1995-2014 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 #ifdef  _SIGNAL_H
  20
  21 /* Fake signal functions.  */
  22 #define SIG_ERR ((__sighandler_t) -1)           /* Error return.  */
  23 #define SIG_DFL ((__sighandler_t) 0)            /* Default action.  */
  24 #define SIG_IGN ((__sighandler_t) 1)            /* Ignore signal.  */
  25
  26 #ifdef __USE_UNIX98
  27 # define SIG_HOLD       ((__sighandler_t) 2)    /* Add signal to hold mask.  */
  28 #endif
  29
  30
  31 /* Signals.  */
  32 #define SIGHUP          1       /* Hangup (POSIX).  */
  33 #define SIGINT          2       /* Interrupt (ANSI).  */
  34 #define SIGQUIT         3       /* Quit (POSIX).  */
  35 #define SIGILL          4       /* Illegal instruction (ANSI).  */
  36 #define SIGTRAP         5       /* Trace trap (POSIX).  */
  37 #define SIGABRT         6       /* Abort (ANSI).  */
  38 #define SIGIOT          6       /* IOT trap (4.2 BSD).  */
  39 #define SIGBUS          7       /* BUS error (4.2 BSD).  */
  40 #define SIGFPE          8       /* Floating-point exception (ANSI).  */
  41 #define SIGKILL         9       /* Kill, unblockable (POSIX).  */
  42 #define SIGUSR1         10      /* User-defined signal 1 (POSIX).  */
  43 #define SIGSEGV         11      /* Segmentation violation (ANSI).  */
  44 #define SIGUSR2         12      /* User-defined signal 2 (POSIX).  */
  45 #define SIGPIPE         13      /* Broken pipe (POSIX).  */
  46 #define SIGALRM         14      /* Alarm clock (POSIX).  */
  47 #define SIGTERM         15      /* Termination (ANSI).  */
  48 #define SIGSTKFLT       16      /* Stack fault.  */
  49 #define SIGCLD          SIGCHLD /* Same as SIGCHLD (System V).  */
  50 #define SIGCHLD         17      /* Child status has changed (POSIX).  */
  51 #define SIGCONT         18      /* Continue (POSIX).  */
  52 #define SIGSTOP         19      /* Stop, unblockable (POSIX).  */
  53 #define SIGTSTP         20      /* Keyboard stop (POSIX).  */
  54 #define SIGTTIN         21      /* Background read from tty (POSIX).  */
  55 #define SIGTTOU         22      /* Background write to tty (POSIX).  */
  56 #define SIGURG          23      /* Urgent condition on socket (4.2 BSD).  */
  57 #define SIGXCPU         24      /* CPU limit exceeded (4.2 BSD).  */
  58 #define SIGXFSZ         25      /* File size limit exceeded (4.2 BSD).  */
  59 #define SIGVTALRM       26      /* Virtual alarm clock (4.2 BSD).  */
  60 #define SIGPROF         27      /* Profiling alarm clock (4.2 BSD).  */
  61 #define SIGWINCH        28      /* Window size change (4.3 BSD, Sun).  */
  62 #define SIGPOLL         SIGIO   /* Pollable event occurred (System V).  */
  63 #define SIGIO           29      /* I/O now possible (4.2 BSD).  */
  64 #define SIGPWR          30      /* Power failure restart (System V).  */
  65 #define SIGSYS          31      /* Bad system call.  */
  66 #define SIGUNUSED       31
  67
  68 #define _NSIG           65      /* Biggest signal number + 1
  69                                    (including real-time signals).  */
  70
  71 #define SIGRTMIN        (__libc_current_sigrtmin ())
  72 #define SIGRTMAX        (__libc_current_sigrtmax ())
  73
  74 /* These are the hard limits of the kernel.  These values should not be
  75    used directly at user level.  */
  76 #define __SIGRTMIN      32
  77 #define __SIGRTMAX      (_NSIG - 1)
  78
  79 #endif  /* <signal.h> included.  */