[apple/xnu.git] / osfmk / i386 / trap.h

/*
 * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code 
 * as defined in and that are subject to the Apple Public Source License 
 * Version 2.0 (the 'License'). You may not use this file except in 
 * compliance with the License.  The rights granted to you under the 
 * License may not be used to create, or enable the creation or 
 * redistribution of, unlawful or unlicensed copies of an Apple operating 
 * system, or to circumvent, violate, or enable the circumvention or 
 * violation of, any terms of an Apple operating system software license 
 * agreement.
 *
 * Please obtain a copy of the License at 
 * http://www.opensource.apple.com/apsl/ and read it before using this 
 * file.
 *
 * The Original Code and all software distributed under the License are 
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * Please see the License for the specific language governing rights and 
 * limitations under the License.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
 */
/*
 * @OSF_COPYRIGHT@
 */
/* 
 * Mach Operating System
 * Copyright (c) 1991,1990 Carnegie Mellon University
 * All Rights Reserved.
 * 
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 * 
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 * 
 * any improvements or extensions that they make and grant Carnegie Mellon
 * the rights to redistribute these changes.
 */
/*
 */

#ifndef	_I386_TRAP_H_
#define	_I386_TRAP_H_

/*
 * Hardware trap vectors for i386.
 */
#define	T_DIVIDE_ERROR		0
#define	T_DEBUG			1
#define	T_NMI			2		/* non-maskable interrupt */
#define	T_INT3			3		/* int 3 instruction */
#define	T_OVERFLOW		4		/* overflow test */
#define	T_OUT_OF_BOUNDS		5		/* bounds check */
#define	T_INVALID_OPCODE	6		/* invalid op code */
#define	T_NO_FPU		7		/* no floating point */
#define	T_DOUBLE_FAULT		8		/* double fault */
#define	T_FPU_FAULT		9
/*				10 */
#define	T_SEGMENT_NOT_PRESENT	11
#define	T_STACK_FAULT		12
#define	T_GENERAL_PROTECTION	13
#define	T_PAGE_FAULT		14
/*				15 */
#define	T_FLOATING_POINT_ERROR	16
#define	T_WATCHPOINT		17
#define T_PREEMPT		255

#define TRAP_NAMES "divide error", "debug trap", "NMI", "breakpoint", \
		   "overflow", "bounds check", "invalid opcode", \
		   "no coprocessor", "double fault", "coprocessor overrun", \
		   "invalid TSS", "segment not present", "stack bounds", \
		   "general protection", "page fault", "(reserved)", \
		   "coprocessor error", "watchpoint"

/*
 * Page-fault trap codes.
 */
#define	T_PF_PROT		0x1		/* protection violation */
#define	T_PF_WRITE		0x2		/* write access */
#define	T_PF_USER		0x4		/* from user state */

#if !defined(ASSEMBLER) && defined(MACH_KERNEL)

#include <i386/thread.h>

extern void		i386_exception(
				int		exc,
				int		code,
				int		subcode);

extern boolean_t	kernel_trap(
				struct i386_saved_state	*regs);

extern void		panic_trap(
				struct i386_saved_state	*regs);

extern void		user_trap(
				struct i386_saved_state	*regs);

extern void		i386_astintr(int preemption);

#if defined(MACH_KDP)
extern void		kdp_i386_trap(
				unsigned int,
				struct i386_saved_state *,
				kern_return_t,
				vm_offset_t);
#endif /* MACH_KDP */
#endif	/* !ASSEMBLER && MACH_KERNEL */

#endif	/* _I386_TRAP_H_ */
Commit	Line	Data
1c79356b	1	/*
91447636	2	* Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
1c79356b	3	*
8ad349bb	4	* @APPLE_LICENSE_OSREFERENCE_HEADER_START@
1c79356b	5	*
8ad349bb A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the
	10	* License may not be used to create, or enable the creation or
	11	* redistribution of, unlawful or unlicensed copies of an Apple operating
	12	* system, or to circumvent, violate, or enable the circumvention or
	13	* violation of, any terms of an Apple operating system software license
	14	* agreement.
	15	*
	16	* Please obtain a copy of the License at
	17	* http://www.opensource.apple.com/apsl/ and read it before using this
	18	* file.
	19	*
	20	* The Original Code and all software distributed under the License are
	21	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	22	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	23	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	24	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	25	* Please see the License for the specific language governing rights and
	26	* limitations under the License.
	27	*
	28	* @APPLE_LICENSE_OSREFERENCE_HEADER_END@
1c79356b A	29	*/
	30	/*
	31	* @OSF_COPYRIGHT@
	32	*/
	33	/*
	34	* Mach Operating System
	35	* Copyright (c) 1991,1990 Carnegie Mellon University
	36	* All Rights Reserved.
	37	*
	38	* Permission to use, copy, modify and distribute this software and its
	39	* documentation is hereby granted, provided that both the copyright
	40	* notice and this permission notice appear in all copies of the
	41	* software, derivative works or modified versions, and any portions
	42	* thereof, and that both notices appear in supporting documentation.
	43	*
	44	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	45	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	46	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	47	*
	48	* Carnegie Mellon requests users of this software to return to
	49	*
	50	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	51	* School of Computer Science
	52	* Carnegie Mellon University
	53	* Pittsburgh PA 15213-3890
	54	*
	55	* any improvements or extensions that they make and grant Carnegie Mellon
	56	* the rights to redistribute these changes.
	57	*/
	58	/*
	59	*/
	60
	61	#ifndef _I386_TRAP_H_
	62	#define _I386_TRAP_H_
	63
	64	/*
	65	* Hardware trap vectors for i386.
	66	*/
	67	#define T_DIVIDE_ERROR 0
	68	#define T_DEBUG 1
	69	#define T_NMI 2 /* non-maskable interrupt */
	70	#define T_INT3 3 /* int 3 instruction */
	71	#define T_OVERFLOW 4 /* overflow test */
	72	#define T_OUT_OF_BOUNDS 5 /* bounds check */
	73	#define T_INVALID_OPCODE 6 /* invalid op code */
	74	#define T_NO_FPU 7 /* no floating point */
	75	#define T_DOUBLE_FAULT 8 /* double fault */
	76	#define T_FPU_FAULT 9
	77	/* 10 */
	78	#define T_SEGMENT_NOT_PRESENT 11
	79	#define T_STACK_FAULT 12
	80	#define T_GENERAL_PROTECTION 13
	81	#define T_PAGE_FAULT 14
	82	/* 15 */
	83	#define T_FLOATING_POINT_ERROR 16
	84	#define T_WATCHPOINT 17
	85	#define T_PREEMPT 255
	86
	87	#define TRAP_NAMES "divide error", "debug trap", "NMI", "breakpoint", \
	88	"overflow", "bounds check", "invalid opcode", \
	89	"no coprocessor", "double fault", "coprocessor overrun", \
	90	"invalid TSS", "segment not present", "stack bounds", \
	91	"general protection", "page fault", "(reserved)", \
8ad349bb	92	"coprocessor error", "watchpoint"
1c79356b A	93
	94	/*
	95	* Page-fault trap codes.
	96	*/
	97	#define T_PF_PROT 0x1 /* protection violation */
	98	#define T_PF_WRITE 0x2 /* write access */
	99	#define T_PF_USER 0x4 /* from user state */
	100
	101	#if !defined(ASSEMBLER) && defined(MACH_KERNEL)
	102
	103	#include <i386/thread.h>
	104
	105	extern void i386_exception(
	106	int exc,
	107	int code,
	108	int subcode);
	109
8ad349bb A	110	extern boolean_t kernel_trap(
8ad349bb A	111	struct i386_saved_state *regs);
c0fea474	112
8ad349bb A	113	extern void panic_trap(
8ad349bb A	114	struct i386_saved_state *regs);
c0fea474	115
8ad349bb A	116	extern void user_trap(
8ad349bb A	117	struct i386_saved_state *regs);
1c79356b A	118
	119	extern void i386_astintr(int preemption);
	120
8ad349bb A	121	#if defined(MACH_KDP)
8ad349bb A	122	extern void kdp_i386_trap(
91447636	123	unsigned int,
8ad349bb	124	struct i386_saved_state *,
91447636 A	125	kern_return_t,
	126	vm_offset_t);
	127	#endif /* MACH_KDP */
1c79356b A	128	#endif /* !ASSEMBLER && MACH_KERNEL */
	129
	130	#endif /* _I386_TRAP_H_ */