xref: /illumos-gate/usr/src/uts/common/sys/fault.h (revision bbf21555)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate  * with the License.
87c478bd9Sstevel@tonic-gate  *
97c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate  * and limitations under the License.
137c478bd9Sstevel@tonic-gate  *
147c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate  *
207c478bd9Sstevel@tonic-gate  * CDDL HEADER END
217c478bd9Sstevel@tonic-gate  */
227c478bd9Sstevel@tonic-gate /*
237c478bd9Sstevel@tonic-gate  * Copyright (c) 1999 by Sun Microsystems, Inc.
247c478bd9Sstevel@tonic-gate  * All rights reserved.
257c478bd9Sstevel@tonic-gate  */
267c478bd9Sstevel@tonic-gate 
277c478bd9Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
28b4203d75SMarcel Telka /*	  All Rights Reserved	*/
297c478bd9Sstevel@tonic-gate 
307c478bd9Sstevel@tonic-gate 
317c478bd9Sstevel@tonic-gate #ifndef _SYS_FAULT_H
327c478bd9Sstevel@tonic-gate #define	_SYS_FAULT_H
337c478bd9Sstevel@tonic-gate 
347c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
357c478bd9Sstevel@tonic-gate extern "C" {
367c478bd9Sstevel@tonic-gate #endif
377c478bd9Sstevel@tonic-gate 
387c478bd9Sstevel@tonic-gate /*
397c478bd9Sstevel@tonic-gate  * Fault numbers, analagous to signals.  These correspond to
407c478bd9Sstevel@tonic-gate  * hardware faults.  Setting the appropriate flags in a process's
417c478bd9Sstevel@tonic-gate  * set of traced faults via /proc causes the process to stop each
427c478bd9Sstevel@tonic-gate  * time one of the designated faults occurs so that a debugger can
43*bbf21555SRichard Lowe  * take action.  See proc(5) for details.
447c478bd9Sstevel@tonic-gate  */
457c478bd9Sstevel@tonic-gate 
467c478bd9Sstevel@tonic-gate 	/* fault enumeration must begin with 1 */
477c478bd9Sstevel@tonic-gate #define	FLTILL		1	/* Illegal instruction */
487c478bd9Sstevel@tonic-gate #define	FLTPRIV		2	/* Privileged instruction */
497c478bd9Sstevel@tonic-gate #define	FLTBPT		3	/* Breakpoint instruction */
507c478bd9Sstevel@tonic-gate #define	FLTTRACE	4	/* Trace trap (single-step) */
517c478bd9Sstevel@tonic-gate #define	FLTACCESS	5	/* Memory access (e.g., alignment) */
527c478bd9Sstevel@tonic-gate #define	FLTBOUNDS	6	/* Memory bounds (invalid address) */
537c478bd9Sstevel@tonic-gate #define	FLTIOVF		7	/* Integer overflow */
547c478bd9Sstevel@tonic-gate #define	FLTIZDIV	8	/* Integer zero divide */
557c478bd9Sstevel@tonic-gate #define	FLTFPE		9	/* Floating-point exception */
567c478bd9Sstevel@tonic-gate #define	FLTSTACK	10	/* Irrecoverable stack fault */
577c478bd9Sstevel@tonic-gate #define	FLTPAGE		11	/* Recoverable page fault (no associated sig) */
587c478bd9Sstevel@tonic-gate #define	FLTWATCH	12	/* Watchpoint trap */
597c478bd9Sstevel@tonic-gate #define	FLTCPCOVF	13	/* CPU performance counter overflow */
607c478bd9Sstevel@tonic-gate 
617c478bd9Sstevel@tonic-gate typedef struct {		/* fault set type */
627c478bd9Sstevel@tonic-gate 	unsigned int	word[4];
637c478bd9Sstevel@tonic-gate } fltset_t;
647c478bd9Sstevel@tonic-gate 
657c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
667c478bd9Sstevel@tonic-gate }
677c478bd9Sstevel@tonic-gate #endif
687c478bd9Sstevel@tonic-gate 
697c478bd9Sstevel@tonic-gate #endif	/* _SYS_FAULT_H */
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