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1998-11-02 16:12 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu> * sysdeps/generic/bits/signum.h: Define signals with their historical numbers when those are in the 1-15 range and consistent across platforms. Define compatibility aliases (SIGIOT, SIGCLD) if __USE_MISC. Define SIG_DFL, SIG_IGN, SIG_ERR as numeric constants cast appropriately instead of with fake function declarations (would cause link errors). If __USE_UNIX98, define SIG_HOLD. 1998-10-29 H.J. Lu <hjl@gnu.org> * sysdeps/unix/sysv/linux/bits/sigaction.h (sigaction): Use union only if __USE_POSIX199309 is defined. * misc/sys/select.h (pselect): Declared only if __USE_GNU is defined. * sysdeps/unix/sysv/linux/netatalk/at.h: Include <linux/atalk.h> before <sys/socket.h> to make sockaddr_at available to <sys/socket.h>.
65 lines
2.5 KiB
C
65 lines
2.5 KiB
C
/* Copyright (C) 1991, 1993, 1996, 1998 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifdef _SIGNAL_H
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/* Fake signal functions. */
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#define SIG_ERR ((__sighandler_t) -1) /* Error return. */
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#define SIG_DFL ((__sighandler_t) 0) /* Default action. */
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#define SIG_IGN ((__sighandler_t) 1) /* Ignore signal. */
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#ifdef __USE_UNIX98
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# define SIG_HOLD ((__sighandler_t) 2) /* Add signal to hold mask. */
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#endif
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/* Signals in the 1-15 range are defined with their historical numbers.
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Signals in the 20-25 range are relatively new and have no ingrained
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numbers. */
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/* ANSI signals. */
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#define SIGINT 2 /* Interactive attention signal. */
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#define SIGILL 4 /* Illegal instruction. */
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#define SIGABRT 6 /* Abnormal termination. */
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#define SIGFPE 8 /* Erroneous arithmetic operation. */
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#define SIGSEGV 11 /* Invalid access to storage. */
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#define SIGTERM 15 /* Termination request. */
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/* Historical signals specified by POSIX. */
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#define SIGHUP 1 /* Hangup. */
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#define SIGQUIT 3 /* Quit. */
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#define SIGKILL 9 /* Kill (cannot be blocked, caught, or ignored). */
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#define SIGPIPE 13 /* Broken pipe. */
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#define SIGALRM 14 /* Alarm clock. */
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/* New(er) POSIX signals. */
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#define SIGSTOP 20 /* Stop (cannot be blocked, caught, or ignored). */
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#define SIGCONT 21 /* Continue. */
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#define SIGTSTP 22 /* Keyboard stop. */
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#define SIGTTIN 23 /* Background read from control terminal. */
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#define SIGTTOU 24 /* Background write to control terminal. */
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#define SIGCHLD 25 /* Child terminated or stopped. */
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#define _NSIG 26
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/* Archaic names for compatibility. */
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#define SIGIOT SIGABRT /* IOT instruction, abort() on a PDP11 */
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#define SIGCLD SIGCHLD /* Old System V name */
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#endif /* <signal.h> included. */
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