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

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * 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. 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_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 void		thread_exception_return(void);

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);

#endif	/* !ASSEMBLER && MACH_KERNEL */

#endif	/* _I386_TRAP_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
43866e37	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
1c79356b	7	*
43866e37 A	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
43866e37 A	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
1c79356b A	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	24	*/
	25	/*
	26	* @OSF_COPYRIGHT@
	27	*/
	28	/*
	29	* Mach Operating System
	30	* Copyright (c) 1991,1990 Carnegie Mellon University
	31	* All Rights Reserved.
	32	*
	33	* Permission to use, copy, modify and distribute this software and its
	34	* documentation is hereby granted, provided that both the copyright
	35	* notice and this permission notice appear in all copies of the
	36	* software, derivative works or modified versions, and any portions
	37	* thereof, and that both notices appear in supporting documentation.
	38	*
	39	* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
	40	* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
	41	* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	42	*
	43	* Carnegie Mellon requests users of this software to return to
	44	*
	45	* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
	46	* School of Computer Science
	47	* Carnegie Mellon University
	48	* Pittsburgh PA 15213-3890
	49	*
	50	* any improvements or extensions that they make and grant Carnegie Mellon
	51	* the rights to redistribute these changes.
	52	*/
	53	/*
	54	*/
	55
	56	#ifndef _I386_TRAP_H_
	57	#define _I386_TRAP_H_
	58
	59	/*
	60	* Hardware trap vectors for i386.
	61	*/
	62	#define T_DIVIDE_ERROR 0
	63	#define T_DEBUG 1
	64	#define T_NMI 2 /* non-maskable interrupt */
	65	#define T_INT3 3 /* int 3 instruction */
	66	#define T_OVERFLOW 4 /* overflow test */
	67	#define T_OUT_OF_BOUNDS 5 /* bounds check */
	68	#define T_INVALID_OPCODE 6 /* invalid op code */
	69	#define T_NO_FPU 7 /* no floating point */
	70	#define T_DOUBLE_FAULT 8 /* double fault */
	71	#define T_FPU_FAULT 9
	72	/* 10 */
	73	#define T_SEGMENT_NOT_PRESENT 11
	74	#define T_STACK_FAULT 12
	75	#define T_GENERAL_PROTECTION 13
	76	#define T_PAGE_FAULT 14
	77	/* 15 */
	78	#define T_FLOATING_POINT_ERROR 16
	79	#define T_WATCHPOINT 17
	80	#define T_PREEMPT 255
	81
	82	#define TRAP_NAMES "divide error", "debug trap", "NMI", "breakpoint", \
	83	"overflow", "bounds check", "invalid opcode", \
	84	"no coprocessor", "double fault", "coprocessor overrun", \
	85	"invalid TSS", "segment not present", "stack bounds", \
86	"general protection", "page fault", "(reserved)", \
87	"coprocessor error", "watchpoint"
88
89	/*
90	* Page-fault trap codes.
91	*/
92	#define T_PF_PROT 0x1 /* protection violation */
93	#define T_PF_WRITE 0x2 /* write access */
94	#define T_PF_USER 0x4 /* from user state */
95
96	#if !defined(ASSEMBLER) && defined(MACH_KERNEL)
97
98	#include <i386/thread.h>
99
100	extern void i386_exception(
101	int exc,
102	int code,
103	int subcode);
104
105	extern void thread_exception_return(void);
106
107	extern boolean_t kernel_trap(
108	struct i386_saved_state *regs);
109
110	extern void panic_trap(
111	struct i386_saved_state *regs);
112
113	extern void user_trap(
114	struct i386_saved_state *regs);
115
116	extern void i386_astintr(int preemption);
117
118	#endif /* !ASSEMBLER && MACH_KERNEL */
119
120	#endif /* _I386_TRAP_H_ */