1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/*
* 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.
*/
/*
* Author: David B. Golub, Carnegie Mellon University
* Date: 7/90
*/
/*
* Data access functions for debugger.
*/
#include <mach/boolean.h>
#include <machine/db_machdep.h>
#include <ddb/db_task_thread.h>
#include "vm_param.h"
/* implementation dependent access capability */
#define DB_ACCESS_KERNEL 0 /* only kernel space */
#define DB_ACCESS_CURRENT 1 /* kernel or current task space */
#define DB_ACCESS_ANY 2 /* any space */
#ifndef DB_ACCESS_LEVEL
#define DB_ACCESS_LEVEL DB_ACCESS_KERNEL
#endif /* DB_ACCESS_LEVEL */
#ifndef DB_VALID_KERN_ADDR
#define DB_VALID_KERN_ADDR(addr) ((addr) >= VM_MIN_KERNEL_ADDRESS \
&& (addr) < VM_MAX_KERNEL_ADDRESS)
#define DB_VALID_ADDRESS(addr,user) ((user != 0) ^ DB_VALID_KERN_ADDR(addr))
#define DB_PHYS_EQ(task1,addr1,task2,addr2) 0
#define DB_CHECK_ACCESS(addr,size,task) db_is_current_task(task)
#endif /* DB_VALID_KERN_ADDR */
extern int db_access_level;
extern db_expr_t db_get_value( db_addr_t addr,
int size,
boolean_t is_signed );
extern void db_put_value( db_addr_t addr,
int size,
db_expr_t value );
extern db_expr_t db_get_task_value( db_addr_t addr,
int size,
boolean_t is_signed,
task_t task );
extern void db_put_task_value( db_addr_t addr,
int size,
db_expr_t value,
task_t task );
|
