Commit | Line | Data |
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2ebecbb1 | 1 | /* od-avrelf.c -- dump information about an AVR elf object file. |
250d07de | 2 | Copyright (C) 2011-2021 Free Software Foundation, Inc. |
2ebecbb1 DC |
3 | Written by Senthil Kumar Selvaraj, Atmel. |
4 | ||
5 | This file is part of GNU Binutils. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3, or (at your option) | |
10 | any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, 51 Franklin Street - Fifth Floor, Boston, | |
20 | MA 02110-1301, USA. */ | |
21 | ||
22 | #include "sysdep.h" | |
23 | #include <stddef.h> | |
24 | #include <time.h> | |
25 | #include <stdint.h> | |
26 | #include "safe-ctype.h" | |
27 | #include "bfd.h" | |
28 | #include "objdump.h" | |
29 | #include "bucomm.h" | |
30 | #include "bfdlink.h" | |
31 | #include "bfd.h" | |
32 | #include "elf/external.h" | |
33 | #include "elf/internal.h" | |
137c83d6 | 34 | #include "elf32-avr.h" |
2ebecbb1 DC |
35 | |
36 | /* Index of the options in the options[] array. */ | |
37 | #define OPT_MEMUSAGE 0 | |
137c83d6 | 38 | #define OPT_AVRPROP 1 |
2ebecbb1 DC |
39 | |
40 | /* List of actions. */ | |
41 | static struct objdump_private_option options[] = | |
42 | { | |
43 | { "mem-usage", 0 }, | |
137c83d6 | 44 | { "avr-prop", 0}, |
2ebecbb1 DC |
45 | { NULL, 0 } |
46 | }; | |
47 | ||
48 | /* Display help. */ | |
49 | ||
50 | static void | |
51 | elf32_avr_help (FILE *stream) | |
52 | { | |
53 | fprintf (stream, _("\ | |
54 | For AVR ELF files:\n\ | |
55 | mem-usage Display memory usage\n\ | |
137c83d6 | 56 | avr-prop Display contents of .avr.prop section\n\ |
2ebecbb1 DC |
57 | ")); |
58 | } | |
59 | ||
60 | typedef struct tagDeviceInfo | |
61 | { | |
62 | uint32_t flash_start; | |
63 | uint32_t flash_size; | |
64 | uint32_t ram_start; | |
65 | uint32_t ram_size; | |
66 | uint32_t eeprom_start; | |
67 | uint32_t eeprom_size; | |
68 | char * name; | |
69 | } deviceinfo; | |
70 | ||
71 | ||
72 | /* Return TRUE if ABFD is handled. */ | |
73 | ||
74 | static int | |
75 | elf32_avr_filter (bfd *abfd) | |
76 | { | |
77 | return bfd_get_flavour (abfd) == bfd_target_elf_flavour; | |
78 | } | |
79 | ||
1cfcf300 | 80 | static char * |
2ebecbb1 DC |
81 | elf32_avr_get_note_section_contents (bfd *abfd, bfd_size_type *size) |
82 | { | |
83 | asection *section; | |
1cfcf300 | 84 | bfd_byte *contents; |
2ebecbb1 | 85 | |
1cfcf300 AM |
86 | section = bfd_get_section_by_name (abfd, ".note.gnu.avr.deviceinfo"); |
87 | if (section == NULL) | |
2ebecbb1 DC |
88 | return NULL; |
89 | ||
1cfcf300 AM |
90 | if (!bfd_malloc_and_get_section (abfd, section, &contents)) |
91 | { | |
92 | free (contents); | |
93 | contents = NULL; | |
94 | } | |
2ebecbb1 | 95 | |
1cfcf300 AM |
96 | *size = bfd_section_size (section); |
97 | return (char *) contents; | |
2ebecbb1 DC |
98 | } |
99 | ||
1cfcf300 AM |
100 | static char * |
101 | elf32_avr_get_note_desc (bfd *abfd, char *contents, bfd_size_type size, | |
102 | bfd_size_type *descsz) | |
2ebecbb1 DC |
103 | { |
104 | Elf_External_Note *xnp = (Elf_External_Note *) contents; | |
105 | Elf_Internal_Note in; | |
106 | ||
107 | if (offsetof (Elf_External_Note, name) > size) | |
108 | return NULL; | |
109 | ||
110 | in.type = bfd_get_32 (abfd, xnp->type); | |
111 | in.namesz = bfd_get_32 (abfd, xnp->namesz); | |
112 | in.namedata = xnp->name; | |
113 | if (in.namesz > contents - in.namedata + size) | |
114 | return NULL; | |
115 | ||
1cfcf300 AM |
116 | if (in.namesz != 4 || strcmp (in.namedata, "AVR") != 0) |
117 | return NULL; | |
118 | ||
2ebecbb1 DC |
119 | in.descsz = bfd_get_32 (abfd, xnp->descsz); |
120 | in.descdata = in.namedata + align_power (in.namesz, 2); | |
1cfcf300 AM |
121 | if (in.descsz < 6 * sizeof (uint32_t) |
122 | || in.descdata >= contents + size | |
123 | || in.descsz > contents - in.descdata + size) | |
2ebecbb1 DC |
124 | return NULL; |
125 | ||
1cfcf300 AM |
126 | /* If the note has a string table, ensure it is 0 terminated. */ |
127 | if (in.descsz > 8 * sizeof (uint32_t)) | |
128 | in.descdata[in.descsz - 1] = 0; | |
2ebecbb1 | 129 | |
1cfcf300 | 130 | *descsz = in.descsz; |
2ebecbb1 DC |
131 | return in.descdata; |
132 | } | |
133 | ||
134 | static void | |
135 | elf32_avr_get_device_info (bfd *abfd, char *description, | |
1cfcf300 | 136 | bfd_size_type desc_size, deviceinfo *device) |
2ebecbb1 DC |
137 | { |
138 | if (description == NULL) | |
139 | return; | |
140 | ||
141 | const bfd_size_type memory_sizes = 6; | |
142 | ||
1cfcf300 AM |
143 | memcpy (device, description, memory_sizes * sizeof (uint32_t)); |
144 | desc_size -= memory_sizes * sizeof (uint32_t); | |
145 | if (desc_size < 8) | |
146 | return; | |
2ebecbb1 | 147 | |
1cfcf300 | 148 | uint32_t *stroffset_table = (uint32_t *) description + memory_sizes; |
2ebecbb1 | 149 | bfd_size_type stroffset_table_size = bfd_get_32 (abfd, stroffset_table); |
2ebecbb1 DC |
150 | |
151 | /* If the only content is the size itself, there's nothing in the table */ | |
1cfcf300 | 152 | if (stroffset_table_size < 8) |
2ebecbb1 | 153 | return; |
1cfcf300 AM |
154 | if (desc_size <= stroffset_table_size) |
155 | return; | |
156 | desc_size -= stroffset_table_size; | |
2ebecbb1 DC |
157 | |
158 | /* First entry is the device name index. */ | |
159 | uint32_t device_name_index = bfd_get_32 (abfd, stroffset_table + 1); | |
1cfcf300 AM |
160 | if (device_name_index >= desc_size) |
161 | return; | |
2ebecbb1 | 162 | |
1cfcf300 | 163 | char *str_table = (char *) stroffset_table + stroffset_table_size; |
2ebecbb1 DC |
164 | device->name = str_table + device_name_index; |
165 | } | |
166 | ||
167 | static void | |
168 | elf32_avr_get_memory_usage (bfd *abfd, | |
9d3fcfe0 NC |
169 | bfd_size_type *text_usage, |
170 | bfd_size_type *data_usage, | |
171 | bfd_size_type *eeprom_usage) | |
2ebecbb1 DC |
172 | { |
173 | ||
174 | bfd_size_type avr_datasize = 0; | |
175 | bfd_size_type avr_textsize = 0; | |
176 | bfd_size_type avr_bsssize = 0; | |
177 | bfd_size_type bootloadersize = 0; | |
178 | bfd_size_type noinitsize = 0; | |
179 | bfd_size_type eepromsize = 0; | |
9d3fcfe0 | 180 | bfd_size_type res; |
2ebecbb1 DC |
181 | asection *section; |
182 | ||
183 | if ((section = bfd_get_section_by_name (abfd, ".data")) != NULL) | |
fd361982 | 184 | avr_datasize = bfd_section_size (section); |
2ebecbb1 | 185 | if ((section = bfd_get_section_by_name (abfd, ".text")) != NULL) |
fd361982 | 186 | avr_textsize = bfd_section_size (section); |
2ebecbb1 | 187 | if ((section = bfd_get_section_by_name (abfd, ".bss")) != NULL) |
fd361982 | 188 | avr_bsssize = bfd_section_size (section); |
2ebecbb1 | 189 | if ((section = bfd_get_section_by_name (abfd, ".bootloader")) != NULL) |
fd361982 | 190 | bootloadersize = bfd_section_size (section); |
2ebecbb1 | 191 | if ((section = bfd_get_section_by_name (abfd, ".noinit")) != NULL) |
fd361982 | 192 | noinitsize = bfd_section_size (section); |
2ebecbb1 | 193 | if ((section = bfd_get_section_by_name (abfd, ".eeprom")) != NULL) |
fd361982 | 194 | eepromsize = bfd_section_size (section); |
2ebecbb1 | 195 | |
9d3fcfe0 NC |
196 | /* PR 27285: Check for overflow. */ |
197 | res = avr_textsize + avr_datasize; | |
198 | if (res < avr_textsize || res < avr_datasize) | |
199 | { | |
200 | fprintf (stderr, _("Warning: textsize (%#lx) + datasize (%#lx) overflows size type\n"), | |
201 | (long) avr_textsize, (long) avr_datasize); | |
202 | res = (bfd_size_type) -1; | |
203 | } | |
204 | else | |
205 | { | |
206 | bfd_size_type res2; | |
207 | res2 = res + bootloadersize; | |
208 | if (res2 < bootloadersize || res2 < res) | |
209 | { | |
210 | fprintf (stderr, _("Warning: textsize (%#lx) + datasize (%#lx) + bootloadersize (%#lx) overflows size type\n"), | |
211 | (long) avr_textsize, (long) avr_datasize, (long) bootloadersize); | |
212 | res2 = (bfd_size_type) -1; | |
213 | } | |
214 | res = res2; | |
215 | } | |
216 | *text_usage = res; | |
217 | ||
218 | res = avr_datasize + avr_bsssize; | |
219 | if (res < avr_datasize || res < avr_bsssize) | |
220 | { | |
221 | fprintf (stderr, _("Warning: datatsize (%#lx) + bssssize (%#lx) overflows size type\n"), | |
222 | (long) avr_datasize, (long) avr_bsssize); | |
223 | res = (bfd_size_type) -1; | |
224 | } | |
225 | else | |
226 | { | |
227 | bfd_size_type res2; | |
228 | ||
229 | res2 = res + noinitsize; | |
230 | if (res2 < res || res2 < noinitsize) | |
231 | { | |
232 | fprintf (stderr, _("Warning: datasize (%#lx) + bsssize (%#lx) + noinitsize (%#lx) overflows size type\n"), | |
233 | (long) avr_datasize, (long) avr_bsssize, (long) noinitsize); | |
234 | res2 = (bfd_size_type) -1; | |
235 | } | |
236 | res = res2; | |
237 | } | |
238 | *data_usage = res; | |
239 | ||
2ebecbb1 DC |
240 | *eeprom_usage = eepromsize; |
241 | } | |
242 | ||
243 | static void | |
244 | elf32_avr_dump_mem_usage (bfd *abfd) | |
245 | { | |
246 | char *description = NULL; | |
1cfcf300 | 247 | bfd_size_type sec_size, desc_size; |
2ebecbb1 | 248 | |
4e327239 | 249 | deviceinfo device = { 0, 0, 0, 0, 0, 0, NULL }; |
2ebecbb1 DC |
250 | device.name = "Unknown"; |
251 | ||
252 | bfd_size_type data_usage = 0; | |
253 | bfd_size_type text_usage = 0; | |
254 | bfd_size_type eeprom_usage = 0; | |
255 | ||
1cfcf300 | 256 | char *contents = elf32_avr_get_note_section_contents (abfd, &sec_size); |
2ebecbb1 DC |
257 | |
258 | if (contents != NULL) | |
259 | { | |
1cfcf300 AM |
260 | description = elf32_avr_get_note_desc (abfd, contents, sec_size, |
261 | &desc_size); | |
262 | elf32_avr_get_device_info (abfd, description, desc_size, &device); | |
2ebecbb1 DC |
263 | } |
264 | ||
265 | elf32_avr_get_memory_usage (abfd, &text_usage, &data_usage, | |
9d3fcfe0 | 266 | &eeprom_usage); |
2ebecbb1 DC |
267 | |
268 | printf ("AVR Memory Usage\n" | |
269 | "----------------\n" | |
270 | "Device: %s\n\n", device.name); | |
271 | ||
272 | /* Text size */ | |
9d3fcfe0 | 273 | printf ("Program:%8lu bytes", text_usage); |
2ebecbb1 DC |
274 | if (device.flash_size > 0) |
275 | printf (" (%2.1f%% Full)", ((float) text_usage / device.flash_size) * 100); | |
276 | ||
277 | printf ("\n(.text + .data + .bootloader)\n\n"); | |
278 | ||
279 | /* Data size */ | |
9d3fcfe0 | 280 | printf ("Data: %8lu bytes", data_usage); |
2ebecbb1 DC |
281 | if (device.ram_size > 0) |
282 | printf (" (%2.1f%% Full)", ((float) data_usage / device.ram_size) * 100); | |
283 | ||
284 | printf ("\n(.data + .bss + .noinit)\n\n"); | |
285 | ||
286 | /* EEPROM size */ | |
287 | if (eeprom_usage > 0) | |
288 | { | |
9d3fcfe0 | 289 | printf ("EEPROM: %8lu bytes", eeprom_usage); |
2ebecbb1 DC |
290 | if (device.eeprom_size > 0) |
291 | printf (" (%2.1f%% Full)", ((float) eeprom_usage / device.eeprom_size) * 100); | |
292 | ||
293 | printf ("\n(.eeprom)\n\n"); | |
294 | } | |
295 | ||
296 | if (contents != NULL) | |
297 | free (contents); | |
298 | ||
299 | } | |
300 | ||
137c83d6 AB |
301 | static void |
302 | elf32_avr_dump_avr_prop (bfd *abfd) | |
303 | { | |
304 | struct avr_property_record_list *r_list; | |
305 | unsigned int i; | |
306 | ||
307 | r_list = avr_elf32_load_property_records (abfd); | |
308 | if (r_list == NULL) | |
309 | return; | |
310 | ||
311 | printf ("\nContents of `%s' section:\n\n", r_list->section->name); | |
312 | ||
313 | printf (" Version: %d\n", r_list->version); | |
314 | printf (" Flags: %#x\n\n", r_list->flags); | |
315 | ||
316 | for (i = 0; i < r_list->record_count; ++i) | |
317 | { | |
318 | printf (" %d %s @ %s + %#08lx (%#08lx)\n", | |
fd361982 AM |
319 | i, |
320 | avr_elf32_property_record_name (&r_list->records [i]), | |
321 | r_list->records [i].section->name, | |
322 | r_list->records [i].offset, | |
323 | (bfd_section_vma (r_list->records [i].section) | |
324 | + r_list->records [i].offset)); | |
137c83d6 AB |
325 | switch (r_list->records [i].type) |
326 | { | |
327 | case RECORD_ORG: | |
328 | /* Nothing else to print. */ | |
329 | break; | |
330 | case RECORD_ORG_AND_FILL: | |
331 | printf (" Fill: %#08lx\n", | |
332 | r_list->records [i].data.org.fill); | |
333 | break; | |
334 | case RECORD_ALIGN: | |
431ff075 | 335 | printf (" Align: %#08lx\n", |
137c83d6 AB |
336 | r_list->records [i].data.align.bytes); |
337 | break; | |
338 | case RECORD_ALIGN_AND_FILL: | |
431ff075 | 339 | printf (" Align: %#08lx, Fill: %#08lx\n", |
137c83d6 | 340 | r_list->records [i].data.align.bytes, |
431ff075 | 341 | r_list->records [i].data.align.fill); |
137c83d6 AB |
342 | break; |
343 | } | |
344 | } | |
345 | ||
346 | free (r_list); | |
347 | } | |
348 | ||
2ebecbb1 DC |
349 | static void |
350 | elf32_avr_dump (bfd *abfd) | |
351 | { | |
352 | if (options[OPT_MEMUSAGE].selected) | |
353 | elf32_avr_dump_mem_usage (abfd); | |
137c83d6 AB |
354 | if (options[OPT_AVRPROP].selected) |
355 | elf32_avr_dump_avr_prop (abfd); | |
2ebecbb1 DC |
356 | } |
357 | ||
358 | const struct objdump_private_desc objdump_private_desc_elf32_avr = | |
359 | { | |
360 | elf32_avr_help, | |
361 | elf32_avr_filter, | |
362 | elf32_avr_dump, | |
363 | options | |
364 | }; |