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* hurd/hurdsig.c (_hurd_internal_post_signal): Support SA_RESETHAND 

and SA_NODEFER options.  Spurred to action by Igor Khavkine.

	* sysdeps/generic/bits/sigaction.h [__USE_UNIX98 || __USE_MISC]
	(SA_NODEFER, SA_RESETHAND): New macros, same bit values as FreeBSD.
	[__USE_MISC] (SA_INTERRUPT): New macro, value 0.
	[__USE_MISC] (SA_NOMASK, SA_ONESHOT, SA_STACK): New macros, aliases
	as in other sysdeps versions of this file.

        * sysdeps/generic/bits/sigaction.h (struct sigaction): Use a union
	and provide sa_handler and sa_sigaction member names as macros, as
	done in other sysdeps versions of this file.
	Suggested by Igor Khavkine <i_khavki@alcor.concordia.ca>.
This commit is contained in:
Roland McGrath 2001-07-23 07:20:28 +00:00
parent 5d83494fad
commit 393aec5244
3 changed files with 54 additions and 4 deletions
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16
ChangeLog
View File

@ -1,3 +1,19 @@
2001-07-22 Roland McGrath <roland@frob.com>
* hurd/hurdsig.c (_hurd_internal_post_signal): Support SA_RESETHAND
and SA_NODEFER options. Spurred to action by Igor Khavkine.
* sysdeps/generic/bits/sigaction.h [__USE_UNIX98 || __USE_MISC]
(SA_NODEFER, SA_RESETHAND): New macros, same bit values as FreeBSD.
[__USE_MISC] (SA_INTERRUPT): New macro, value 0.
[__USE_MISC] (SA_NOMASK, SA_ONESHOT, SA_STACK): New macros, aliases
as in other sysdeps versions of this file.
* sysdeps/generic/bits/sigaction.h (struct sigaction): Use a union
and provide sa_handler and sa_sigaction member names as macros, as
done in other sysdeps versions of this file.
Suggested by Igor Khavkine <i_khavki@alcor.concordia.ca>.
2001-07-23 Ulrich Drepper <drepper@redhat.com>
* posix/regex.c: Revamp memory allocation for WCHAR functions to

21
bits/sigaction.h
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1991, 1992, 1996, 1997, 1998 Free Software Foundation, Inc.
/* Copyright (C) 1991,92,96,97,98,2001 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
@ -30,7 +30,12 @@
struct sigaction
{
/* Signal handler. */
__sighandler_t sa_handler;
union {
__sighandler_t sa_handler;
void (*sa_sigaction) (int, siginfo_t *, void *);
} __sigaction_handler;
# define sa_handler __sigaction_handler.sa_handler
# define sa_sigaction __sigaction_handler.sa_sigaction
/* Additional set of signals to be blocked. */
__sigset_t sa_mask;
@ -43,9 +48,21 @@ struct sigaction
#if defined __USE_UNIX98 || defined __USE_MISC
# define SA_ONSTACK 0x0001 /* Take signal on signal stack. */
# define SA_RESTART 0x0002 /* Restart syscall on signal return. */
# define SA_NODEFER 0x0010 /* Don't automatically block the signal when
its handler is being executed. */
# define SA_RESETHAND 0x0004 /* Reset to SIG_DFL on entry to handler. */
#endif
#define SA_NOCLDSTOP 0x0008 /* Don't send SIGCHLD when children stop. */
#ifdef __USE_MISC
# define SA_INTERRUPT 0 /* Historical no-op ("not SA_RESTART"). */
/* Some aliases for the SA_ constants. */
# define SA_NOMASK SA_NODEFER
# define SA_ONESHOT SA_RESETHAND
# define SA_STACK SA_ONSTACK
#endif
/* Values for the HOW argument to `sigprocmask'. */
#define SIG_BLOCK 1 /* Block signals. */

21
sysdeps/generic/bits/sigaction.h
View File

@ -1,4 +1,4 @@
/* Copyright (C) 1991, 1992, 1996, 1997, 1998 Free Software Foundation, Inc.
/* Copyright (C) 1991,92,96,97,98,2001 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
@ -30,7 +30,12 @@
struct sigaction
{
/* Signal handler. */
__sighandler_t sa_handler;
union {
__sighandler_t sa_handler;
void (*sa_sigaction) (int, siginfo_t *, void *);
} __sigaction_handler;
# define sa_handler __sigaction_handler.sa_handler
# define sa_sigaction __sigaction_handler.sa_sigaction
/* Additional set of signals to be blocked. */
__sigset_t sa_mask;
@ -43,9 +48,21 @@ struct sigaction
#if defined __USE_UNIX98 || defined __USE_MISC
# define SA_ONSTACK 0x0001 /* Take signal on signal stack. */
# define SA_RESTART 0x0002 /* Restart syscall on signal return. */
# define SA_NODEFER 0x0010 /* Don't automatically block the signal when
its handler is being executed. */
# define SA_RESETHAND 0x0004 /* Reset to SIG_DFL on entry to handler. */
#endif
#define SA_NOCLDSTOP 0x0008 /* Don't send SIGCHLD when children stop. */
#ifdef __USE_MISC
# define SA_INTERRUPT 0 /* Historical no-op ("not SA_RESTART"). */
/* Some aliases for the SA_ constants. */
# define SA_NOMASK SA_NODEFER
# define SA_ONESHOT SA_RESETHAND
# define SA_STACK SA_ONSTACK
#endif
/* Values for the HOW argument to `sigprocmask'. */
#define SIG_BLOCK 1 /* Block signals. */