glibc/sysdeps/unix/sysv/linux/bits/sigstack.h
Ulrich Drepper 4f5e4ac46c Update.
1998-06-10  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/syscalls.list: Add sigaltstack and
	sigstack.

	* sysdeps/unix/sysv/linux/bits/sigstack.h: Add definitions of
	SS_ONSTACK, SS_DISABLE, MINSIGSTKSZ and SIGSTKSZ.
	* sysdeps/unix/sysv/linux/alpha/bits/sigstack.h: New file.
1998-06-10 11:00:50 +00:00

56 lines
1.6 KiB
C

/* sigstack, sigaltstack definitions.
Copyright (C) 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
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _SIGNAL_H
# error "Never include this file directly. Use <signal.h> instead"
#endif
/* Structure describing a signal stack (obsolete). */
struct sigstack
{
__ptr_t ss_sp; /* Signal stack pointer. */
int ss_onstack; /* Nonzero if executing on this stack. */
};
/* Possible values for `ss_flags.'. */
enum
{
SS_ONSTACK = 1,
#define SS_ONSTACK SS_ONSTACK
SS_DISABLE
#define SS_DISABLE SS_DISABLE
};
/* Minimum stack size for a signal handler. */
#define MINSIGSTKSZ 2048
/* System default stack size. */
#define SIGSTKSZ 8192
/* Alternate, preferred interface. */
typedef struct sigaltstack
{
__ptr_t ss_sp;
int ss_flags;
size_t ss_size;
} stack_t;