1/*
2 * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
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 License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/*
29 * @OSF_COPYRIGHT@
30 */
31/*
32 * Mach Operating System
33 * Copyright (c) 1991,1990 Carnegie Mellon University
34 * All Rights Reserved.
35 *
36 * Permission to use, copy, modify and distribute this software and its
37 * documentation is hereby granted, provided that both the copyright
38 * notice and this permission notice appear in all copies of the
39 * software, derivative works or modified versions, and any portions
40 * thereof, and that both notices appear in supporting documentation.
41 *
42 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
43 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
44 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
45 *
46 * Carnegie Mellon requests users of this software to return to
47 *
48 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
49 *  School of Computer Science
50 *  Carnegie Mellon University
51 *  Pittsburgh PA 15213-3890
52 *
53 * any improvements or extensions that they make and grant Carnegie Mellon
54 * the rights to redistribute these changes.
55 */
56
57#ifndef	_PPC_TRAP_H_
58#define	_PPC_TRAP_H_
59
60/* maximum number of arguments to a syscall trap */
61#define NARGS	12
62/* Size to reserve in frame for arguments - first 8 are in registers */
63#define ARG_SIZE FM_ALIGN((NARGS-8)*4)
64#define MUNGE_ARGS_SIZE FM_ALIGN(8*8)
65
66/*
67 * Hardware exception vectors for powerpc are in exception.h
68 */
69
70#ifndef	ASSEMBLER
71
72#include <mach/thread_status.h>
73#include <mach/boolean.h>
74#include <mach/kern_return.h>
75#include <ppc/thread.h>
76
77extern void			doexception(int exc, mach_exception_code_t code,
78					mach_exception_subcode_t sub);
79
80extern struct savearea*	trap(int trapno,
81				     struct savearea *ss,
82				     unsigned int dsisr,
83				     addr64_t dar);
84
85typedef kern_return_t (*perfCallback)(int trapno, struct savearea *ss,
86	unsigned int dsisr, addr64_t dar);
87
88extern perfCallback perfTrapHook;
89extern perfCallback perfASTHook;
90extern perfCallback perfIntHook;
91
92extern struct savearea* interrupt(int intno,
93					 struct savearea *ss,
94					 unsigned int dsisr,
95					 unsigned int dar);
96
97extern int			syscall_error(int exception,
98					      int64_t code,
99					      int64_t subcode,
100					      struct savearea *ss);
101
102
103#endif	/* ASSEMBLER */
104
105#endif	/* _PPC_TRAP_H_ */
106