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
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
|
/* Test dwarf_cu_info properties.
Copyright (C) 2018 Red Hat, Inc.
This file is part of elfutils.
This file 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.
elfutils 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/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <dwarf.h>
#include ELFUTILS_HEADER(dw)
#include <stdio.h>
#include <inttypes.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
/* Yeah, lazy, 16K CUs should be enough for everybody... */
#define MAX_UNITS 16384
struct info
{
int dietag;
int subtag;
Dwarf_Half version;
uint8_t unit_type;
uint64_t id;
uint8_t addr_size;
uint8_t off_size;
};
static struct info unit_info[MAX_UNITS];
int
main (int argc, char *argv[])
{
for (int i = 1; i < argc; i++)
{
printf ("file: %s\n", argv[i]);
int fd = open (argv[i], O_RDONLY);
Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);
if (dbg == NULL)
{
printf ("%s not usable: %s\n", argv[i], dwarf_errmsg (-1));
return -1;
}
Dwarf_CU *cu = NULL;
Dwarf_Half version;
Dwarf_Die cudie, subdie;
uint8_t unit_type;
size_t u, units;
u = units = 0;
printf ("Iterate getting all info, compare with dwarf_cu_info.\n");
while (dwarf_get_units (dbg, cu, &cu, &version,
&unit_type, &cudie, &subdie) == 0)
{
int dietag = dwarf_tag (&cudie);
int subtag = dwarf_tag (&subdie);
unit_info[u].dietag = dietag;
unit_info[u].subtag = subtag;
unit_info[u].version = version;
unit_info[u].unit_type = unit_type;
printf ("%zu cu dietag: %x, subtag: %x, version %" PRIx32
", unit_type %" PRIx8 "\n",
u, dietag, subtag, version, unit_type);
uint64_t unit_id;
uint8_t addr_size, off_size;
if (dwarf_cu_info (cu,
&version, &unit_type, &cudie, &subdie,
&unit_id, &addr_size, &off_size) != 0)
{
printf ("Invalid dwarf_cu_info: %s\n", dwarf_errmsg (-1));
return -1;
}
dietag = dwarf_tag (&cudie);
subtag = dwarf_tag (&subdie);
if (unit_info[u].dietag != dietag)
{
printf("Unequal dietags\n");
return -1;
}
if (unit_info[u].subtag != subtag)
{
printf("Unequal subtags\n");
return -1;
}
if (unit_info[u].version != version)
{
printf("Unequal versions\n");
return -1;
}
if (unit_info[u].unit_type != unit_type)
{
printf("Unequal unit_types\n");
return -1;
}
unit_info[u].id = unit_id;
unit_info[u].addr_size = addr_size;
unit_info[u].off_size = off_size;
if (unit_type == DW_UT_skeleton)
{
if (dwarf_cu_info (subdie.cu,
&version, &unit_type, &cudie, &subdie,
&unit_id, &addr_size, &off_size) != 0)
{
printf ("Invalid subdie dwarf_cu_info: %s\n",
dwarf_errmsg (-1));
return -1;
}
dietag = dwarf_tag (&cudie);
subtag = dwarf_tag (&subdie);
printf ("%zu subdietag: %x, subtag: %x, version %" PRIx32
", unit_type %" PRIx8 "\n",
u, dietag, subtag, version, unit_type);
/* subdie is now cudie. */
if (unit_info[u].subtag != dietag)
{
printf ("Inconsistent subdie tag\n");
return -1;
}
if (unit_info[u].id != unit_id)
{
printf ("Unequal subdie ids\n");
return -1;
}
if (unit_info[u].addr_size != addr_size)
{
printf ("Unequal subdie addr_size\n");
return -1;
}
if (unit_info[u].off_size != off_size)
{
printf ("Unequal subdie off_size\n");
return -1;
}
}
if (u >= MAX_UNITS)
{
printf ("Oops, more than 16K units...\n");
return -1;
}
u = ++units;
}
dwarf_end (dbg);
close (fd);
/* And again... */
printf ("rechecking: %s\n", argv[i]);
fd = open (argv[i], O_RDONLY);
dbg = dwarf_begin (fd, DWARF_C_READ);
if (dbg == NULL)
{
printf ("%s not usable: %s\n", argv[i], dwarf_errmsg (-1));
return -1;
}
cu = NULL;
u = 0;
printf ("Iterate no info, compare recorded info with dwarf_cu_info.\n");
while (dwarf_get_units (dbg, cu, &cu, NULL, NULL, NULL, NULL) == 0)
{
if (u > units)
{
printf ("Got too many units???\n");
return -1;
}
uint64_t unit_id;
uint8_t addr_size, off_size;
if (dwarf_cu_info (cu,
&version, &unit_type, &cudie, &subdie,
&unit_id, &addr_size, &off_size) != 0)
{
printf ("Invalid dwarf_cu_info: %s\n", dwarf_errmsg (-1));
return -1;
}
int dietag = dwarf_tag (&cudie);
int subtag = dwarf_tag (&subdie);
printf ("%zu re dietag: %x, subtag: %x, version %" PRIx32
", unit_type %" PRIx8 "\n",
u, dietag, subtag, version, unit_type);
if (unit_info[u].dietag != dietag)
{
printf("Unequal dietags %x != %x\n", unit_info[u].dietag, dietag);
return -1;
}
if (unit_info[u].subtag != subtag)
{
printf("Unequal subtags\n");
return -1;
}
if (unit_info[u].version != version)
{
printf("Unequal versions\n");
return -1;
}
if (unit_info[u].unit_type != unit_type)
{
printf("Unequal unit_types\n");
return -1;
}
if (unit_info[u].id != unit_id)
{
printf ("Unequal subdie ids\n");
return -1;
}
if (unit_info[u].addr_size != addr_size)
{
printf ("Unequal subdie addr_size\n");
return -1;
}
if (unit_info[u].off_size != off_size)
{
printf ("Unequal subdie off_size\n");
return -1;
}
if (unit_type == DW_UT_skeleton)
{
if (dwarf_cu_info (subdie.cu,
&version, &unit_type, &cudie, &subdie,
&unit_id, &addr_size, &off_size) != 0)
{
printf ("Invalid subdie dwarf_cu_info: %s\n",
dwarf_errmsg (-1));
return -1;
}
dietag = dwarf_tag (&cudie);
subtag = dwarf_tag (&subdie);
printf ("%zu subdietag: %x, subtag: %x, version %" PRIx32
", unit_type %" PRIx8 "\n",
u, dietag, subtag, version, unit_type);
/* subdie is now cudie. */
subtag = dwarf_tag (&cudie);
if (unit_info[u].subtag != subtag)
{
printf ("Inconsistent subdie tag\n");
return -1;
}
if (unit_info[u].id != unit_id)
{
printf ("Unequal subdie ids\n");
return -1;
}
if (unit_info[u].addr_size != addr_size)
{
printf ("Unequal subdie addr_size\n");
return -1;
}
if (unit_info[u].off_size != off_size)
{
printf ("Unequal subdie off_size\n");
return -1;
}
}
if (u >= MAX_UNITS)
{
printf ("Oops, more than 16K units...\n");
return -1;
}
u++;
}
if (u != units)
{
printf ("Got not enough units???\n");
return -1;
}
dwarf_end (dbg);
close (fd);
printf ("\n");
}
return 0;
}
|
