xref: /titanic_51/usr/src/uts/common/sys/fault.h (revision 7c478bd95313f5f23a4c958a745db2134aa03244)

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 1999 by Sun Microsystems, Inc.
 * All rights reserved.
 */

/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
/*	  All Rights Reserved  	*/


#ifndef _SYS_FAULT_H
#define	_SYS_FAULT_H

#pragma ident	"%Z%%M%	%I%	%E% SMI"

#ifdef	__cplusplus
extern "C" {
#endif

/*
 * Fault numbers, analagous to signals.  These correspond to
 * hardware faults.  Setting the appropriate flags in a process's
 * set of traced faults via /proc causes the process to stop each
 * time one of the designated faults occurs so that a debugger can
 * take action.  See proc(4) for details.
 */

	/* fault enumeration must begin with 1 */
#define	FLTILL		1	/* Illegal instruction */
#define	FLTPRIV		2	/* Privileged instruction */
#define	FLTBPT		3	/* Breakpoint instruction */
#define	FLTTRACE	4	/* Trace trap (single-step) */
#define	FLTACCESS	5	/* Memory access (e.g., alignment) */
#define	FLTBOUNDS	6	/* Memory bounds (invalid address) */
#define	FLTIOVF		7	/* Integer overflow */
#define	FLTIZDIV	8	/* Integer zero divide */
#define	FLTFPE		9	/* Floating-point exception */
#define	FLTSTACK	10	/* Irrecoverable stack fault */
#define	FLTPAGE		11	/* Recoverable page fault (no associated sig) */
#define	FLTWATCH	12	/* Watchpoint trap */
#define	FLTCPCOVF	13	/* CPU performance counter overflow */

typedef struct {		/* fault set type */
	unsigned int	word[4];
} fltset_t;

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_FAULT_H */