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
240
241
242
243
244
245
246
247
|
/* MI Command Set - breakpoint and watchpoint commands.
Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
Contributed by Cygnus Solutions (a Red Hat company).
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 3 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, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "mi-cmds.h"
#include "ui-out.h"
#include "mi-out.h"
#include "breakpoint.h"
#include "gdb_string.h"
#include "mi-getopt.h"
#include "gdb.h"
#include "exceptions.h"
#include "observer.h"
enum
{
FROM_TTY = 0
};
/* True if MI breakpoint observers have been registered. */
static int mi_breakpoint_observers_installed;
/* Control whether breakpoint_notify may act. */
static int mi_can_breakpoint_notify;
/* Output a single breakpoint, when allowed. */
static void
breakpoint_notify (int b)
{
if (mi_can_breakpoint_notify)
gdb_breakpoint_query (uiout, b, NULL);
}
enum bp_type
{
REG_BP,
HW_BP,
REGEXP_BP
};
/* Implements the -break-insert command.
See the MI manual for the list of possible options. */
void
mi_cmd_break_insert (char *command, char **argv, int argc)
{
char *address = NULL;
enum bp_type type = REG_BP;
int temp_p = 0;
int thread = -1;
int ignore_count = 0;
char *condition = NULL;
int pending = 0;
struct gdb_exception e;
struct gdb_events *old_hooks;
enum opt
{
HARDWARE_OPT, TEMP_OPT /*, REGEXP_OPT */ , CONDITION_OPT,
IGNORE_COUNT_OPT, THREAD_OPT, PENDING_OPT
};
static struct mi_opt opts[] =
{
{"h", HARDWARE_OPT, 0},
{"t", TEMP_OPT, 0},
{"c", CONDITION_OPT, 1},
{"i", IGNORE_COUNT_OPT, 1},
{"p", THREAD_OPT, 1},
{"f", PENDING_OPT, 0},
{ 0, 0, 0 }
};
/* Parse arguments. It could be -r or -h or -t, <location> or ``--''
to denote the end of the option list. */
int optind = 0;
char *optarg;
while (1)
{
int opt = mi_getopt ("mi_cmd_break_insert", argc, argv, opts, &optind, &optarg);
if (opt < 0)
break;
switch ((enum opt) opt)
{
case TEMP_OPT:
temp_p = 1;
break;
case HARDWARE_OPT:
type = HW_BP;
break;
#if 0
case REGEXP_OPT:
type = REGEXP_BP;
break;
#endif
case CONDITION_OPT:
condition = optarg;
break;
case IGNORE_COUNT_OPT:
ignore_count = atol (optarg);
break;
case THREAD_OPT:
thread = atol (optarg);
break;
case PENDING_OPT:
pending = 1;
break;
}
}
if (optind >= argc)
error (_("mi_cmd_break_insert: Missing <location>"));
if (optind < argc - 1)
error (_("mi_cmd_break_insert: Garbage following <location>"));
address = argv[optind];
/* Now we have what we need, let's insert the breakpoint! */
if (! mi_breakpoint_observers_installed)
{
observer_attach_breakpoint_created (breakpoint_notify);
observer_attach_breakpoint_modified (breakpoint_notify);
observer_attach_breakpoint_deleted (breakpoint_notify);
mi_breakpoint_observers_installed = 1;
}
mi_can_breakpoint_notify = 1;
/* Make sure we restore hooks even if exception is thrown. */
TRY_CATCH (e, RETURN_MASK_ALL)
{
switch (type)
{
case REG_BP:
set_breakpoint (address, condition,
0 /*hardwareflag */ , temp_p,
thread, ignore_count,
pending);
break;
case HW_BP:
set_breakpoint (address, condition,
1 /*hardwareflag */ , temp_p,
thread, ignore_count,
pending);
break;
#if 0
case REGEXP_BP:
if (temp_p)
error (_("mi_cmd_break_insert: Unsupported tempoary regexp breakpoint"));
else
rbreak_command_wrapper (address, FROM_TTY);
break;
#endif
default:
internal_error (__FILE__, __LINE__,
_("mi_cmd_break_insert: Bad switch."));
}
}
mi_can_breakpoint_notify = 0;
if (e.reason < 0)
throw_exception (e);
}
enum wp_type
{
REG_WP,
READ_WP,
ACCESS_WP
};
/* Insert a watchpoint. The type of watchpoint is specified by the
first argument:
-break-watch <expr> --> insert a regular wp.
-break-watch -r <expr> --> insert a read watchpoint.
-break-watch -a <expr> --> insert an access wp. */
void
mi_cmd_break_watch (char *command, char **argv, int argc)
{
char *expr = NULL;
enum wp_type type = REG_WP;
enum opt
{
READ_OPT, ACCESS_OPT
};
static struct mi_opt opts[] =
{
{"r", READ_OPT, 0},
{"a", ACCESS_OPT, 0},
{ 0, 0, 0 }
};
/* Parse arguments. */
int optind = 0;
char *optarg;
while (1)
{
int opt = mi_getopt ("mi_cmd_break_watch", argc, argv, opts, &optind, &optarg);
if (opt < 0)
break;
switch ((enum opt) opt)
{
case READ_OPT:
type = READ_WP;
break;
case ACCESS_OPT:
type = ACCESS_WP;
break;
}
}
if (optind >= argc)
error (_("mi_cmd_break_watch: Missing <expression>"));
if (optind < argc - 1)
error (_("mi_cmd_break_watch: Garbage following <expression>"));
expr = argv[optind];
/* Now we have what we need, let's insert the watchpoint! */
switch (type)
{
case REG_WP:
watch_command_wrapper (expr, FROM_TTY);
break;
case READ_WP:
rwatch_command_wrapper (expr, FROM_TTY);
break;
case ACCESS_WP:
awatch_command_wrapper (expr, FROM_TTY);
break;
default:
error (_("mi_cmd_break_watch: Unknown watchpoint type."));
}
}
|
