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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>.
This commit is contained in:
Ulrich Drepper
1998-11-03 17:21:07 +00:00
parent 5fea58fbe8
commit f540c0a4ad
5 changed files with 103 additions and 56 deletions
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61
bits/signum.h
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1991, 1993, 1996 Free Software Foundation, Inc.
/* Copyright (C) 1991, 1993, 1996, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -19,35 +19,46 @@
#ifdef _SIGNAL_H
/* Fake signal functions. */
extern void _sig_ign __P ((int sig));
extern void _sig_dfl __P ((int sig));
#define SIG_ERR ((__sighandler_t) 0) /* Error return. */
#define SIG_DFL _sig_dfl /* Default action. */
#define SIG_IGN _sig_ign /* Ignore signal. */
#define SIG_ERR ((__sighandler_t) -1) /* Error return. */
#define SIG_DFL ((__sighandler_t) 0) /* Default action. */
#define SIG_IGN ((__sighandler_t) 1) /* Ignore signal. */
#ifdef __USE_UNIX98
# define SIG_HOLD ((__sighandler_t) 2) /* Add signal to hold mask. */
#endif
/* Signals in the 1-15 range are defined with their historical numbers.
Signals in the 20-25 range are relatively new and have no ingrained
numbers. */
/* ANSI signals. */
#define SIGABRT 1 /* Abnormal termination. */
#define SIGFPE 2 /* Erroneous arithmetic operation. */
#define SIGILL 3 /* Illegal instruction. */
#define SIGINT 3 /* Interactive attention signal. */
#define SIGSEGV 4 /* Invalid access to storage. */
#define SIGTERM 5 /* Termination request. */
#define SIGINT 2 /* Interactive attention signal. */
#define SIGILL 4 /* Illegal instruction. */
#define SIGABRT 6 /* Abnormal termination. */
#define SIGFPE 8 /* Erroneous arithmetic operation. */
#define SIGSEGV 11 /* Invalid access to storage. */
#define SIGTERM 15 /* Termination request. */
/* POSIX signals. */
#define SIGHUP 6 /* Hangup. */
#define SIGQUIT 7 /* Quit. */
#define SIGPIPE 8 /* Broken pipe. */
/* Historical signals specified by POSIX. */
#define SIGHUP 1 /* Hangup. */
#define SIGQUIT 3 /* Quit. */
#define SIGKILL 9 /* Kill (cannot be blocked, caught, or ignored). */
#define SIGALRM 10 /* Alarm clock. */
#define SIGSTOP 11 /* Stop (cannot be blocked, caught, or ignored). */
#define SIGTSTP 12 /* Keyboard stop. */
#define SIGCONT 13 /* Continue. */
#define SIGCHLD 14 /* Child terminated or stopped. */
#define SIGTTIN 15 /* Background read from control terminal. */
#define SIGTTOU 16 /* Background write to control terminal. */
#define SIGPIPE 13 /* Broken pipe. */
#define SIGALRM 14 /* Alarm clock. */
/* New(er) POSIX signals. */
#define SIGSTOP 20 /* Stop (cannot be blocked, caught, or ignored). */
#define SIGCONT 21 /* Continue. */
#define SIGTSTP 22 /* Keyboard stop. */
#define SIGTTIN 23 /* Background read from control terminal. */
#define SIGTTOU 24 /* Background write to control terminal. */
#define SIGCHLD 25 /* Child terminated or stopped. */
#define _NSIG 26
/* Archaic names for compatibility. */
#define SIGIOT SIGABRT /* IOT instruction, abort() on a PDP11 */
#define SIGCLD SIGCHLD /* Old System V name */
#endif /* <signal.h> included. */
#define _NSIG 17