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1/*
2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3 *
8ad349bb 4 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
1c79356b 5 *
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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@
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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 * Author: David B. Golub, Carnegie Mellon University
62 * Date: 7/90
63 */
64/*
65 * Data access functions for debugger.
66 */
67
68#ifndef _DDB_DB_ACCESS_H_
69#define _DDB_DB_ACCESS_H_
70
71#include <mach/boolean.h>
72#include <machine/db_machdep.h>
73#include <ddb/db_task_thread.h>
74
75/* implementation dependent access capability */
76#define DB_ACCESS_KERNEL 0 /* only kernel space */
77#define DB_ACCESS_CURRENT 1 /* kernel or current task space */
78#define DB_ACCESS_ANY 2 /* any space */
79
80#ifndef DB_ACCESS_LEVEL
81#define DB_ACCESS_LEVEL DB_ACCESS_KERNEL
82#endif /* DB_ACCESS_LEVEL */
83
84#ifndef DB_VALID_KERN_ADDR
85#define DB_VALID_KERN_ADDR(addr) ((addr) >= VM_MIN_KERNEL_ADDRESS \
86 && (addr) < VM_MAX_KERNEL_ADDRESS)
87#define DB_VALID_ADDRESS(addr,user) ((user != 0) ^ DB_VALID_KERN_ADDR(addr))
88#define DB_PHYS_EQ(task1,addr1,task2,addr2) 0
89#define DB_CHECK_ACCESS(addr,size,task) db_is_current_space(task)
90#endif /* DB_VALID_KERN_ADDR */
91
92extern int db_access_level;
93
94
95
96/* Prototypes for functions exported by ddb/db_access.c.
97 */
98db_expr_t db_get_task_value(
99 db_addr_t addr,
100 register int size,
101 boolean_t is_signed,
102 task_t task);
103
104void db_put_task_value(
105 db_addr_t addr,
106 register int size,
107 register db_expr_t value,
108 task_t task);
109
110db_expr_t db_get_value(
111 db_addr_t addr,
112 int size,
113 boolean_t is_signed);
114
115void db_put_value(
116 db_addr_t addr,
117 int size,
118 db_expr_t value);
119
120#endif /* !_DDB_DB_ACCESS_H_ */