OpenSolaris_b135/uts/sparc/sys/utrap.h

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/*
 * 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 1995-1999,2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _UTRAP_H
#define	_UTRAP_H

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

#ifdef	__cplusplus
extern "C" {
#endif

/*
 * this file contains definitions for user-level traps.
 */

#define	UT_INSTRUCTION_DISABLED			1
#define	UT_INSTRUCTION_ERROR			2
#define	UT_INSTRUCTION_PROTECTION		3
#define	UT_ILLTRAP_INSTRUCTION			4
#define	UT_ILLEGAL_INSTRUCTION			5
#define	UT_PRIVILEGED_OPCODE			6
#define	UT_FP_DISABLED				7
#define	UT_FP_EXCEPTION_IEEE_754		8
#define	UT_FP_EXCEPTION_OTHER			9
#define	UT_TAG_OVERFLOW				10
#define	UT_DIVISION_BY_ZERO			11
#define	UT_DATA_EXCEPTION			12
#define	UT_DATA_ERROR				13
#define	UT_DATA_PROTECTION			14
#define	UT_MEM_ADDRESS_NOT_ALIGNED		15
#define	UT_PRIVILEGED_ACTION			16
#define	UT_ASYNC_DATA_ERROR			17
#define	UT_TRAP_INSTRUCTION_16			18
#define	UT_TRAP_INSTRUCTION_17			19
#define	UT_TRAP_INSTRUCTION_18			20
#define	UT_TRAP_INSTRUCTION_19			21
#define	UT_TRAP_INSTRUCTION_20			22
#define	UT_TRAP_INSTRUCTION_21			23
#define	UT_TRAP_INSTRUCTION_22			24
#define	UT_TRAP_INSTRUCTION_23			25
#define	UT_TRAP_INSTRUCTION_24			26
#define	UT_TRAP_INSTRUCTION_25			27
#define	UT_TRAP_INSTRUCTION_26			28
#define	UT_TRAP_INSTRUCTION_27			29
#define	UT_TRAP_INSTRUCTION_28			30
#define	UT_TRAP_INSTRUCTION_29			31
#define	UT_TRAP_INSTRUCTION_30			32
#define	UT_TRAP_INSTRUCTION_31			33

/*
 * These defines exist only for the private v8plus install_utrap interface.
 */
#define	UTRAP_V8P_FP_DISABLED			UT_FP_DISABLED
#define	UTRAP_V8P_MEM_ADDRESS_NOT_ALIGNED	UT_MEM_ADDRESS_NOT_ALIGNED

#ifndef _ASM

#define	UTH_NOCHANGE ((utrap_handler_t)(-1))
#define	UTRAP_UTH_NOCHANGE	UTH_NOCHANGE

typedef int utrap_entry_t;
typedef void *utrap_handler_t;	/* user trap handler entry point */

#ifdef __sparcv8plus
int
install_utrap(utrap_entry_t type, utrap_handler_t new_handler,
	utrap_handler_t *old_handlerp);
#endif /* __sparcv8plus */

#ifdef _KERNEL
struct proc;
void utrap_dup(struct proc *pp, struct proc *cp);
void utrap_free(struct proc *p);
#endif /* _KERNEL */

#ifdef __sparcv9
int
__sparc_utrap_install(utrap_entry_t type,
	utrap_handler_t new_precise, utrap_handler_t new_deferred,
	utrap_handler_t *old_precise, utrap_handler_t *old_deferred);
#endif

/* The trap_instruction user traps are precise only. */
#define	UT_PRECISE_MAXTRAPS				33

#endif /* ASM */

#ifdef	__cplusplus
}
#endif

#endif	/* _UTRAP_H */