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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/* Inferior process information for the remote server for GDB.
Copyright (C) 2002, 2005
Free Software Foundation, Inc.
Contributed by MontaVista Software.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#include <stdlib.h>
#include "server.h"
struct thread_info
{
struct inferior_list_entry entry;
void *target_data;
void *regcache_data;
unsigned int gdb_id;
};
struct inferior_list all_threads;
struct thread_info *current_inferior;
#define get_thread(inf) ((struct thread_info *)(inf))
void
add_inferior_to_list (struct inferior_list *list,
struct inferior_list_entry *new_inferior)
{
new_inferior->next = NULL;
if (list->tail != NULL)
list->tail->next = new_inferior;
else
list->head = new_inferior;
list->tail = new_inferior;
}
void
for_each_inferior (struct inferior_list *list,
void (*action) (struct inferior_list_entry *))
{
struct inferior_list_entry *cur = list->head, *next;
while (cur != NULL)
{
next = cur->next;
(*action) (cur);
cur = next;
}
}
void
change_inferior_id (struct inferior_list *list,
unsigned long new_id)
{
if (list->head != list->tail)
error ("tried to change thread ID after multiple threads are created");
list->head->id = new_id;
}
void
remove_inferior (struct inferior_list *list,
struct inferior_list_entry *entry)
{
struct inferior_list_entry **cur;
if (list->head == entry)
{
list->head = entry->next;
if (list->tail == entry)
list->tail = list->head;
return;
}
cur = &list->head;
while (*cur && (*cur)->next != entry)
cur = &(*cur)->next;
if (*cur == NULL)
return;
(*cur)->next = entry->next;
if (list->tail == entry)
list->tail = *cur;
}
void
add_thread (unsigned long thread_id, void *target_data, unsigned int gdb_id)
{
struct thread_info *new_thread
= (struct thread_info *) malloc (sizeof (*new_thread));
memset (new_thread, 0, sizeof (*new_thread));
new_thread->entry.id = thread_id;
add_inferior_to_list (&all_threads, & new_thread->entry);
if (current_inferior == NULL)
current_inferior = new_thread;
new_thread->target_data = target_data;
set_inferior_regcache_data (new_thread, new_register_cache ());
new_thread->gdb_id = gdb_id;
}
unsigned int
thread_id_to_gdb_id (unsigned long thread_id)
{
struct inferior_list_entry *inf = all_threads.head;
while (inf != NULL)
{
struct thread_info *thread = get_thread (inf);
if (inf->id == thread_id)
return thread->gdb_id;
inf = inf->next;
}
return 0;
}
unsigned int
thread_to_gdb_id (struct thread_info *thread)
{
return thread->gdb_id;
}
unsigned long
gdb_id_to_thread_id (unsigned int gdb_id)
{
struct inferior_list_entry *inf = all_threads.head;
while (inf != NULL)
{
struct thread_info *thread = get_thread (inf);
if (thread->gdb_id == gdb_id)
return inf->id;
inf = inf->next;
}
return 0;
}
static void
free_one_thread (struct inferior_list_entry *inf)
{
struct thread_info *thread = get_thread (inf);
free_register_cache (inferior_regcache_data (thread));
free (thread);
}
void
remove_thread (struct thread_info *thread)
{
remove_inferior (&all_threads, (struct inferior_list_entry *) thread);
free_one_thread (&thread->entry);
}
void
clear_inferiors (void)
{
for_each_inferior (&all_threads, free_one_thread);
all_threads.head = all_threads.tail = NULL;
}
struct inferior_list_entry *
find_inferior (struct inferior_list *list,
int (*func) (struct inferior_list_entry *, void *), void *arg)
{
struct inferior_list_entry *inf = list->head;
while (inf != NULL)
{
if ((*func) (inf, arg))
return inf;
inf = inf->next;
}
return NULL;
}
struct inferior_list_entry *
find_inferior_id (struct inferior_list *list, unsigned long id)
{
struct inferior_list_entry *inf = list->head;
while (inf != NULL)
{
if (inf->id == id)
return inf;
inf = inf->next;
}
return NULL;
}
void *
inferior_target_data (struct thread_info *inferior)
{
return inferior->target_data;
}
void
set_inferior_target_data (struct thread_info *inferior, void *data)
{
inferior->target_data = data;
}
void *
inferior_regcache_data (struct thread_info *inferior)
{
return inferior->regcache_data;
}
void
set_inferior_regcache_data (struct thread_info *inferior, void *data)
{
inferior->regcache_data = data;
}
|
