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

   1 /* Signal number definitions.  Linux/HPPA version.
   2    Copyright (C) 1995-2015 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 SIGSTKFLT       7       /* Stack fault.  */
  40 #define SIGFPE          8       /* Floating-point exception (ANSI).  */
  41 #define SIGKILL         9       /* Kill, unblockable (POSIX).  */
  42 #define SIGBUS          10      /* BUS error (4.2 BSD).  */
  43 #define SIGSEGV         11      /* Segmentation violation (ANSI).  */
  44 #define SIGXCPU         12      /* CPU limit exceeded (4.2 BSD).  */
  45 #define SIGPIPE         13      /* Broken pipe (POSIX).  */
  46 #define SIGALRM         14      /* Alarm clock (POSIX).  */
  47 #define SIGTERM         15      /* Termination (ANSI).  */
  48 #define SIGUSR1         16      /* User-defined signal 1 (POSIX).  */
  49 #define SIGUSR2         17      /* User-defined signal 2 (POSIX).  */
  50 #define SIGCLD          SIGCHLD /* Same as SIGCHLD (System V).  */
  51 #define SIGCHLD         18      /* Child status has changed (POSIX).  */
  52 #define SIGPWR          19      /* Power failure restart (System V).  */
  53 #define SIGVTALRM       20      /* Virtual alarm clock (4.2 BSD).  */
  54 #define SIGPROF         21      /* Profiling alarm clock (4.2 BSD).  */
  55 #define SIGPOLL         SIGIO   /* Pollable event occurred (System V).  */
  56 #define SIGIO           22      /* I/O now possible (4.2 BSD).  */
  57 #define SIGWINCH        23      /* Window size change (4.3 BSD, Sun).  */
  58 #define SIGSTOP         24      /* Stop, unblockable (POSIX).  */
  59 #define SIGTSTP         25      /* Keyboard stop (POSIX).  */
  60 #define SIGCONT         26      /* Continue (POSIX).  */
  61 #define SIGTTIN         27      /* Background read from tty (POSIX).  */
  62 #define SIGTTOU         28      /* Background write to tty (POSIX).  */
  63 #define SIGURG          29      /* Urgent condition on socket (4.2 BSD).  */
  64 #define SIGXFSZ         30      /* File size limit exceeded (4.2 BSD).  */
  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 /* In the Linux kernel version 3.17, and glibc 2.21, the signal numbers
  77    were rearranged in order to make hppa like every other arch. Previously
  78    we started __SIGRTMIN at 37, and that meant several pieces of important
  79    software, including systemd, would fail to build. To support systemd we
  80    removed SIGEMT and SIGLOST, and rearranged the others according to
  81    expected values. This is technically an ABI incompatible change, but
  82    because zero applications use SIGSTKFLT, SIGXCPU, SIGXFSZ and SIGSYS
  83    nothing broke.  Nothing uses SIGEMT and SIGLOST, and they were present
  84    for HPUX compatibility which is no longer supported.  Thus because
  85    nothing breaks we don't do any compatibility work here.  */
  86 #define __SIGRTMIN      32      /* Kernel > 3.17.  */
  87 #define __SIGRTMAX      (_NSIG - 1)
  88
  89 #endif  /* <signal.h> included.  */