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
|
/* MI Command Set - disassemble commands.
Copyright (C) 2000-2020 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 "arch-utils.h"
#include "target.h"
#include "value.h"
#include "mi-cmds.h"
#include "mi-getopt.h"
#include "ui-out.h"
#include "disasm.h"
/* The arguments to be passed on the command line and parsed here are
either:
START-ADDRESS: address to start the disassembly at.
END-ADDRESS: address to end the disassembly at.
or:
FILENAME: The name of the file where we want disassemble from.
LINE: The line around which we want to disassemble. It will
disassemble the function that contains that line.
HOW_MANY: Number of disassembly lines to display. With source, it
is the number of disassembly lines only, not counting the source
lines.
always required:
MODE: 0 -- disassembly.
1 -- disassembly and source (with deprecated source-centric view).
2 -- disassembly and opcodes.
3 -- disassembly, source-centric and opcodes.
4 -- disassembly, and source (with pc-centric view).
5 -- disassembly, source (pc-centric) and opcodes. */
void
mi_cmd_disassemble (const char *command, char **argv, int argc)
{
struct gdbarch *gdbarch = get_current_arch ();
struct ui_out *uiout = current_uiout;
CORE_ADDR start;
int mode;
gdb_disassembly_flags disasm_flags;
struct symtab *s;
/* Which options have we processed ... */
int file_seen = 0;
int line_seen = 0;
int num_seen = 0;
int start_seen = 0;
int end_seen = 0;
int addr_seen = 0;
/* ... and their corresponding value. */
char *file_string = NULL;
int line_num = -1;
int how_many = -1;
CORE_ADDR low = 0;
CORE_ADDR high = 0;
CORE_ADDR addr = 0;
/* Options processing stuff. */
int oind = 0;
char *oarg;
enum opt
{
FILE_OPT, LINE_OPT, NUM_OPT, START_OPT, END_OPT, ADDR_OPT
};
static const struct mi_opt opts[] =
{
{"f", FILE_OPT, 1},
{"l", LINE_OPT, 1},
{"n", NUM_OPT, 1},
{"s", START_OPT, 1},
{"e", END_OPT, 1},
{"a", ADDR_OPT, 1},
{ 0, 0, 0 }
};
/* Get the options with their arguments. Keep track of what we
encountered. */
while (1)
{
int opt = mi_getopt ("-data-disassemble", argc, argv, opts,
&oind, &oarg);
if (opt < 0)
break;
switch ((enum opt) opt)
{
case FILE_OPT:
file_string = oarg;
file_seen = 1;
break;
case LINE_OPT:
line_num = atoi (oarg);
line_seen = 1;
break;
case NUM_OPT:
how_many = atoi (oarg);
num_seen = 1;
break;
case START_OPT:
low = parse_and_eval_address (oarg);
start_seen = 1;
break;
case END_OPT:
high = parse_and_eval_address (oarg);
end_seen = 1;
break;
case ADDR_OPT:
addr = parse_and_eval_address (oarg);
addr_seen = 1;
break;
}
}
argv += oind;
argc -= oind;
/* Allow only filename + linenum (with how_many which is not
required) OR start_addr + end_addr OR addr. */
if (!(
( line_seen && file_seen && !start_seen && !end_seen
&& !addr_seen)
|| (!line_seen && !file_seen && !num_seen && start_seen && end_seen
&& !addr_seen)
|| (!line_seen && !file_seen && !num_seen && !start_seen && !end_seen
&& addr_seen))
|| argc != 1)
error (_("-data-disassemble: Usage: ( [-f filename -l linenum "
"[-n howmany]] | [-s startaddr -e endaddr] | [-a addr] ) [--] mode."));
mode = atoi (argv[0]);
if (mode < 0 || mode > 5)
error (_("-data-disassemble: Mode argument must be in the range 0-5."));
/* Convert the mode into a set of disassembly flags. */
disasm_flags = 0; /* Initialize here for -Wall. */
switch (mode)
{
case 0:
break;
case 1:
disasm_flags |= DISASSEMBLY_SOURCE_DEPRECATED;
break;
case 2:
disasm_flags |= DISASSEMBLY_RAW_INSN;
break;
case 3:
disasm_flags |= DISASSEMBLY_SOURCE_DEPRECATED | DISASSEMBLY_RAW_INSN;
break;
case 4:
disasm_flags |= DISASSEMBLY_SOURCE;
break;
case 5:
disasm_flags |= DISASSEMBLY_SOURCE | DISASSEMBLY_RAW_INSN;
break;
default:
gdb_assert_not_reached ("bad disassembly mode");
}
/* We must get the function beginning and end where line_num is
contained. */
if (line_seen && file_seen)
{
s = lookup_symtab (file_string);
if (s == NULL)
error (_("-data-disassemble: Invalid filename."));
if (!find_line_pc (s, line_num, &start))
error (_("-data-disassemble: Invalid line number"));
if (find_pc_partial_function (start, NULL, &low, &high) == 0)
error (_("-data-disassemble: "
"No function contains specified address"));
}
else if (addr_seen)
{
if (find_pc_partial_function (addr, NULL, &low, &high) == 0)
error (_("-data-disassemble: "
"No function contains specified address"));
}
gdb_disassembly (gdbarch, uiout,
disasm_flags,
how_many, low, high);
}
|
