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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/*
* Mach Operating System
* Copyright (c) 1992,1991,1990 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
*/
#if MACH_KDB
#include <mach/boolean.h>
#include <kern/task.h>
#include <kern/thread.h>
#include <machine/db_machdep.h>
#include <ddb/db_lex.h>
#include <ddb/db_access.h>
#include <ddb/db_command.h>
#include <ddb/db_sym.h>
#include <ddb/db_task_thread.h>
/*
* Write to file.
*/
/*ARGSUSED*/
void
db_write_cmd(address, have_addr, count, modif)
db_expr_t address;
boolean_t have_addr;
db_expr_t count;
char * modif;
{
register db_addr_t addr;
register db_expr_t old_value;
db_expr_t new_value;
register int size;
boolean_t wrote_one = FALSE;
boolean_t t_opt, u_opt;
thread_t thread;
task_t task;
addr = (db_addr_t) address;
size = db_size_option(modif, &u_opt, &t_opt);
if (t_opt)
{
if (!db_get_next_thread(&thread, 0))
return;
task = thread->task;
}
else
task = db_current_task();
/* if user space is not explicitly specified,
look in the kernel */
if (!u_opt)
task = TASK_NULL;
if (!DB_VALID_ADDRESS(addr, u_opt)) {
db_printf("Bad address %#*X\n", 2*sizeof(vm_offset_t), addr);
return;
}
while (db_expression(&new_value)) {
old_value = db_get_task_value(addr, size, FALSE, task);
db_task_printsym(addr, DB_STGY_ANY, task);
db_printf("\t\t%#*N\t=\t%#*N\n",
2*sizeof(db_expr_t), old_value,
2*sizeof(db_expr_t), new_value);
db_put_task_value(addr, size, new_value, task);
addr += size;
wrote_one = TRUE;
}
if (!wrote_one)
db_error("Nothing written.\n");
db_next = addr;
db_prev = addr - size;
}
#endif /* MACH_KDB */
|
