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19e6b90e | 1 | /* dwarf.c -- display DWARF contents of a BFD binary file |
4b78141a | 2 | Copyright 2005, 2006, 2007 |
19e6b90e L |
3 | Free Software Foundation, Inc. |
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 | |
32866df7 | 9 | the Free Software Foundation; either version 3 of the License, or |
19e6b90e L |
10 | (at your option) 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, Inc., 51 Franklin Street - Fifth Floor, Boston, MA | |
20 | 02110-1301, USA. */ | |
21 | ||
3db64b00 | 22 | #include "sysdep.h" |
19e6b90e | 23 | #include "libiberty.h" |
3db64b00 AM |
24 | #include "bfd.h" |
25 | #include "bucomm.h" | |
26 | #include "elf/dwarf2.h" | |
27 | #include "dwarf.h" | |
19e6b90e L |
28 | |
29 | static int have_frame_base; | |
30 | static int need_base_address; | |
31 | ||
32 | static unsigned int last_pointer_size = 0; | |
33 | static int warned_about_missing_comp_units = FALSE; | |
34 | ||
35 | static unsigned int num_debug_info_entries = 0; | |
36 | static debug_info *debug_information = NULL; | |
37 | ||
38 | dwarf_vma eh_addr_size; | |
19e6b90e L |
39 | |
40 | int do_debug_info; | |
41 | int do_debug_abbrevs; | |
42 | int do_debug_lines; | |
43 | int do_debug_pubnames; | |
44 | int do_debug_aranges; | |
45 | int do_debug_ranges; | |
46 | int do_debug_frames; | |
47 | int do_debug_frames_interp; | |
48 | int do_debug_macinfo; | |
49 | int do_debug_str; | |
50 | int do_debug_loc; | |
51 | ||
52 | dwarf_vma (*byte_get) (unsigned char *, int); | |
53 | ||
54 | dwarf_vma | |
55 | byte_get_little_endian (unsigned char *field, int size) | |
56 | { | |
57 | switch (size) | |
58 | { | |
59 | case 1: | |
60 | return *field; | |
61 | ||
62 | case 2: | |
63 | return ((unsigned int) (field[0])) | |
64 | | (((unsigned int) (field[1])) << 8); | |
65 | ||
66 | case 4: | |
67 | return ((unsigned long) (field[0])) | |
68 | | (((unsigned long) (field[1])) << 8) | |
69 | | (((unsigned long) (field[2])) << 16) | |
70 | | (((unsigned long) (field[3])) << 24); | |
71 | ||
72 | case 8: | |
73 | if (sizeof (dwarf_vma) == 8) | |
74 | return ((dwarf_vma) (field[0])) | |
75 | | (((dwarf_vma) (field[1])) << 8) | |
76 | | (((dwarf_vma) (field[2])) << 16) | |
77 | | (((dwarf_vma) (field[3])) << 24) | |
78 | | (((dwarf_vma) (field[4])) << 32) | |
79 | | (((dwarf_vma) (field[5])) << 40) | |
80 | | (((dwarf_vma) (field[6])) << 48) | |
81 | | (((dwarf_vma) (field[7])) << 56); | |
82 | else if (sizeof (dwarf_vma) == 4) | |
83 | /* We want to extract data from an 8 byte wide field and | |
84 | place it into a 4 byte wide field. Since this is a little | |
85 | endian source we can just use the 4 byte extraction code. */ | |
86 | return ((unsigned long) (field[0])) | |
87 | | (((unsigned long) (field[1])) << 8) | |
88 | | (((unsigned long) (field[2])) << 16) | |
89 | | (((unsigned long) (field[3])) << 24); | |
90 | ||
91 | default: | |
92 | error (_("Unhandled data length: %d\n"), size); | |
93 | abort (); | |
94 | } | |
95 | } | |
96 | ||
97 | dwarf_vma | |
98 | byte_get_big_endian (unsigned char *field, int size) | |
99 | { | |
100 | switch (size) | |
101 | { | |
102 | case 1: | |
103 | return *field; | |
104 | ||
105 | case 2: | |
106 | return ((unsigned int) (field[1])) | (((int) (field[0])) << 8); | |
107 | ||
108 | case 4: | |
109 | return ((unsigned long) (field[3])) | |
110 | | (((unsigned long) (field[2])) << 8) | |
111 | | (((unsigned long) (field[1])) << 16) | |
112 | | (((unsigned long) (field[0])) << 24); | |
113 | ||
114 | case 8: | |
115 | if (sizeof (dwarf_vma) == 8) | |
116 | return ((dwarf_vma) (field[7])) | |
117 | | (((dwarf_vma) (field[6])) << 8) | |
118 | | (((dwarf_vma) (field[5])) << 16) | |
119 | | (((dwarf_vma) (field[4])) << 24) | |
120 | | (((dwarf_vma) (field[3])) << 32) | |
121 | | (((dwarf_vma) (field[2])) << 40) | |
122 | | (((dwarf_vma) (field[1])) << 48) | |
123 | | (((dwarf_vma) (field[0])) << 56); | |
124 | else if (sizeof (dwarf_vma) == 4) | |
125 | { | |
126 | /* Although we are extracing data from an 8 byte wide field, | |
127 | we are returning only 4 bytes of data. */ | |
128 | field += 4; | |
129 | return ((unsigned long) (field[3])) | |
130 | | (((unsigned long) (field[2])) << 8) | |
131 | | (((unsigned long) (field[1])) << 16) | |
132 | | (((unsigned long) (field[0])) << 24); | |
133 | } | |
134 | ||
135 | default: | |
136 | error (_("Unhandled data length: %d\n"), size); | |
137 | abort (); | |
138 | } | |
139 | } | |
140 | ||
141 | static dwarf_vma | |
142 | byte_get_signed (unsigned char *field, int size) | |
143 | { | |
144 | dwarf_vma x = byte_get (field, size); | |
145 | ||
146 | switch (size) | |
147 | { | |
148 | case 1: | |
149 | return (x ^ 0x80) - 0x80; | |
150 | case 2: | |
151 | return (x ^ 0x8000) - 0x8000; | |
152 | case 4: | |
153 | return (x ^ 0x80000000) - 0x80000000; | |
154 | case 8: | |
155 | return x; | |
156 | default: | |
157 | abort (); | |
158 | } | |
159 | } | |
160 | ||
161 | static unsigned long int | |
162 | read_leb128 (unsigned char *data, unsigned int *length_return, int sign) | |
163 | { | |
164 | unsigned long int result = 0; | |
165 | unsigned int num_read = 0; | |
166 | unsigned int shift = 0; | |
167 | unsigned char byte; | |
168 | ||
169 | do | |
170 | { | |
171 | byte = *data++; | |
172 | num_read++; | |
173 | ||
174 | result |= ((unsigned long int) (byte & 0x7f)) << shift; | |
175 | ||
176 | shift += 7; | |
177 | ||
178 | } | |
179 | while (byte & 0x80); | |
180 | ||
181 | if (length_return != NULL) | |
182 | *length_return = num_read; | |
183 | ||
184 | if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40)) | |
185 | result |= -1L << shift; | |
186 | ||
187 | return result; | |
188 | } | |
189 | ||
190 | typedef struct State_Machine_Registers | |
191 | { | |
192 | unsigned long address; | |
193 | unsigned int file; | |
194 | unsigned int line; | |
195 | unsigned int column; | |
196 | int is_stmt; | |
197 | int basic_block; | |
198 | int end_sequence; | |
199 | /* This variable hold the number of the last entry seen | |
200 | in the File Table. */ | |
201 | unsigned int last_file_entry; | |
202 | } SMR; | |
203 | ||
204 | static SMR state_machine_regs; | |
205 | ||
206 | static void | |
207 | reset_state_machine (int is_stmt) | |
208 | { | |
209 | state_machine_regs.address = 0; | |
210 | state_machine_regs.file = 1; | |
211 | state_machine_regs.line = 1; | |
212 | state_machine_regs.column = 0; | |
213 | state_machine_regs.is_stmt = is_stmt; | |
214 | state_machine_regs.basic_block = 0; | |
215 | state_machine_regs.end_sequence = 0; | |
216 | state_machine_regs.last_file_entry = 0; | |
217 | } | |
218 | ||
219 | /* Handled an extend line op. | |
220 | Returns the number of bytes read. */ | |
221 | ||
222 | static int | |
1617e571 | 223 | process_extended_line_op (unsigned char *data, int is_stmt) |
19e6b90e L |
224 | { |
225 | unsigned char op_code; | |
226 | unsigned int bytes_read; | |
227 | unsigned int len; | |
228 | unsigned char *name; | |
229 | unsigned long adr; | |
230 | ||
231 | len = read_leb128 (data, & bytes_read, 0); | |
232 | data += bytes_read; | |
233 | ||
234 | if (len == 0) | |
235 | { | |
236 | warn (_("badly formed extended line op encountered!\n")); | |
237 | return bytes_read; | |
238 | } | |
239 | ||
240 | len += bytes_read; | |
241 | op_code = *data++; | |
242 | ||
243 | printf (_(" Extended opcode %d: "), op_code); | |
244 | ||
245 | switch (op_code) | |
246 | { | |
247 | case DW_LNE_end_sequence: | |
248 | printf (_("End of Sequence\n\n")); | |
249 | reset_state_machine (is_stmt); | |
250 | break; | |
251 | ||
252 | case DW_LNE_set_address: | |
1617e571 | 253 | adr = byte_get (data, len - bytes_read - 1); |
19e6b90e L |
254 | printf (_("set Address to 0x%lx\n"), adr); |
255 | state_machine_regs.address = adr; | |
256 | break; | |
257 | ||
258 | case DW_LNE_define_file: | |
259 | printf (_(" define new File Table entry\n")); | |
260 | printf (_(" Entry\tDir\tTime\tSize\tName\n")); | |
261 | ||
262 | printf (_(" %d\t"), ++state_machine_regs.last_file_entry); | |
263 | name = data; | |
264 | data += strlen ((char *) data) + 1; | |
265 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
266 | data += bytes_read; | |
267 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
268 | data += bytes_read; | |
269 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
270 | printf (_("%s\n\n"), name); | |
271 | break; | |
272 | ||
273 | default: | |
274 | printf (_("UNKNOWN: length %d\n"), len - bytes_read); | |
275 | break; | |
276 | } | |
277 | ||
278 | return len; | |
279 | } | |
280 | ||
281 | static const char * | |
282 | fetch_indirect_string (unsigned long offset) | |
283 | { | |
284 | struct dwarf_section *section = &debug_displays [str].section; | |
285 | ||
286 | if (section->start == NULL) | |
287 | return _("<no .debug_str section>"); | |
288 | ||
bfe2612a L |
289 | /* DWARF sections under Mach-O have non-zero addresses. */ |
290 | offset -= section->address; | |
19e6b90e L |
291 | if (offset > section->size) |
292 | { | |
293 | warn (_("DW_FORM_strp offset too big: %lx\n"), offset); | |
294 | return _("<offset is too big>"); | |
295 | } | |
296 | ||
297 | return (const char *) section->start + offset; | |
298 | } | |
299 | ||
300 | /* FIXME: There are better and more efficient ways to handle | |
301 | these structures. For now though, I just want something that | |
302 | is simple to implement. */ | |
303 | typedef struct abbrev_attr | |
304 | { | |
305 | unsigned long attribute; | |
306 | unsigned long form; | |
307 | struct abbrev_attr *next; | |
308 | } | |
309 | abbrev_attr; | |
310 | ||
311 | typedef struct abbrev_entry | |
312 | { | |
313 | unsigned long entry; | |
314 | unsigned long tag; | |
315 | int children; | |
316 | struct abbrev_attr *first_attr; | |
317 | struct abbrev_attr *last_attr; | |
318 | struct abbrev_entry *next; | |
319 | } | |
320 | abbrev_entry; | |
321 | ||
322 | static abbrev_entry *first_abbrev = NULL; | |
323 | static abbrev_entry *last_abbrev = NULL; | |
324 | ||
325 | static void | |
326 | free_abbrevs (void) | |
327 | { | |
328 | abbrev_entry *abbrev; | |
329 | ||
330 | for (abbrev = first_abbrev; abbrev;) | |
331 | { | |
332 | abbrev_entry *next = abbrev->next; | |
333 | abbrev_attr *attr; | |
334 | ||
335 | for (attr = abbrev->first_attr; attr;) | |
336 | { | |
337 | abbrev_attr *next = attr->next; | |
338 | ||
339 | free (attr); | |
340 | attr = next; | |
341 | } | |
342 | ||
343 | free (abbrev); | |
344 | abbrev = next; | |
345 | } | |
346 | ||
347 | last_abbrev = first_abbrev = NULL; | |
348 | } | |
349 | ||
350 | static void | |
351 | add_abbrev (unsigned long number, unsigned long tag, int children) | |
352 | { | |
353 | abbrev_entry *entry; | |
354 | ||
355 | entry = malloc (sizeof (*entry)); | |
356 | ||
357 | if (entry == NULL) | |
358 | /* ugg */ | |
359 | return; | |
360 | ||
361 | entry->entry = number; | |
362 | entry->tag = tag; | |
363 | entry->children = children; | |
364 | entry->first_attr = NULL; | |
365 | entry->last_attr = NULL; | |
366 | entry->next = NULL; | |
367 | ||
368 | if (first_abbrev == NULL) | |
369 | first_abbrev = entry; | |
370 | else | |
371 | last_abbrev->next = entry; | |
372 | ||
373 | last_abbrev = entry; | |
374 | } | |
375 | ||
376 | static void | |
377 | add_abbrev_attr (unsigned long attribute, unsigned long form) | |
378 | { | |
379 | abbrev_attr *attr; | |
380 | ||
381 | attr = malloc (sizeof (*attr)); | |
382 | ||
383 | if (attr == NULL) | |
384 | /* ugg */ | |
385 | return; | |
386 | ||
387 | attr->attribute = attribute; | |
388 | attr->form = form; | |
389 | attr->next = NULL; | |
390 | ||
391 | if (last_abbrev->first_attr == NULL) | |
392 | last_abbrev->first_attr = attr; | |
393 | else | |
394 | last_abbrev->last_attr->next = attr; | |
395 | ||
396 | last_abbrev->last_attr = attr; | |
397 | } | |
398 | ||
399 | /* Processes the (partial) contents of a .debug_abbrev section. | |
400 | Returns NULL if the end of the section was encountered. | |
401 | Returns the address after the last byte read if the end of | |
402 | an abbreviation set was found. */ | |
403 | ||
404 | static unsigned char * | |
405 | process_abbrev_section (unsigned char *start, unsigned char *end) | |
406 | { | |
407 | if (first_abbrev != NULL) | |
408 | return NULL; | |
409 | ||
410 | while (start < end) | |
411 | { | |
412 | unsigned int bytes_read; | |
413 | unsigned long entry; | |
414 | unsigned long tag; | |
415 | unsigned long attribute; | |
416 | int children; | |
417 | ||
418 | entry = read_leb128 (start, & bytes_read, 0); | |
419 | start += bytes_read; | |
420 | ||
421 | /* A single zero is supposed to end the section according | |
422 | to the standard. If there's more, then signal that to | |
423 | the caller. */ | |
424 | if (entry == 0) | |
425 | return start == end ? NULL : start; | |
426 | ||
427 | tag = read_leb128 (start, & bytes_read, 0); | |
428 | start += bytes_read; | |
429 | ||
430 | children = *start++; | |
431 | ||
432 | add_abbrev (entry, tag, children); | |
433 | ||
434 | do | |
435 | { | |
436 | unsigned long form; | |
437 | ||
438 | attribute = read_leb128 (start, & bytes_read, 0); | |
439 | start += bytes_read; | |
440 | ||
441 | form = read_leb128 (start, & bytes_read, 0); | |
442 | start += bytes_read; | |
443 | ||
444 | if (attribute != 0) | |
445 | add_abbrev_attr (attribute, form); | |
446 | } | |
447 | while (attribute != 0); | |
448 | } | |
449 | ||
450 | return NULL; | |
451 | } | |
452 | ||
453 | static char * | |
454 | get_TAG_name (unsigned long tag) | |
455 | { | |
456 | switch (tag) | |
457 | { | |
458 | case DW_TAG_padding: return "DW_TAG_padding"; | |
459 | case DW_TAG_array_type: return "DW_TAG_array_type"; | |
460 | case DW_TAG_class_type: return "DW_TAG_class_type"; | |
461 | case DW_TAG_entry_point: return "DW_TAG_entry_point"; | |
462 | case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type"; | |
463 | case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter"; | |
464 | case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration"; | |
465 | case DW_TAG_label: return "DW_TAG_label"; | |
466 | case DW_TAG_lexical_block: return "DW_TAG_lexical_block"; | |
467 | case DW_TAG_member: return "DW_TAG_member"; | |
468 | case DW_TAG_pointer_type: return "DW_TAG_pointer_type"; | |
469 | case DW_TAG_reference_type: return "DW_TAG_reference_type"; | |
470 | case DW_TAG_compile_unit: return "DW_TAG_compile_unit"; | |
471 | case DW_TAG_string_type: return "DW_TAG_string_type"; | |
472 | case DW_TAG_structure_type: return "DW_TAG_structure_type"; | |
473 | case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type"; | |
474 | case DW_TAG_typedef: return "DW_TAG_typedef"; | |
475 | case DW_TAG_union_type: return "DW_TAG_union_type"; | |
476 | case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters"; | |
477 | case DW_TAG_variant: return "DW_TAG_variant"; | |
478 | case DW_TAG_common_block: return "DW_TAG_common_block"; | |
479 | case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion"; | |
480 | case DW_TAG_inheritance: return "DW_TAG_inheritance"; | |
481 | case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine"; | |
482 | case DW_TAG_module: return "DW_TAG_module"; | |
483 | case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type"; | |
484 | case DW_TAG_set_type: return "DW_TAG_set_type"; | |
485 | case DW_TAG_subrange_type: return "DW_TAG_subrange_type"; | |
486 | case DW_TAG_with_stmt: return "DW_TAG_with_stmt"; | |
487 | case DW_TAG_access_declaration: return "DW_TAG_access_declaration"; | |
488 | case DW_TAG_base_type: return "DW_TAG_base_type"; | |
489 | case DW_TAG_catch_block: return "DW_TAG_catch_block"; | |
490 | case DW_TAG_const_type: return "DW_TAG_const_type"; | |
491 | case DW_TAG_constant: return "DW_TAG_constant"; | |
492 | case DW_TAG_enumerator: return "DW_TAG_enumerator"; | |
493 | case DW_TAG_file_type: return "DW_TAG_file_type"; | |
494 | case DW_TAG_friend: return "DW_TAG_friend"; | |
495 | case DW_TAG_namelist: return "DW_TAG_namelist"; | |
496 | case DW_TAG_namelist_item: return "DW_TAG_namelist_item"; | |
497 | case DW_TAG_packed_type: return "DW_TAG_packed_type"; | |
498 | case DW_TAG_subprogram: return "DW_TAG_subprogram"; | |
499 | case DW_TAG_template_type_param: return "DW_TAG_template_type_param"; | |
500 | case DW_TAG_template_value_param: return "DW_TAG_template_value_param"; | |
501 | case DW_TAG_thrown_type: return "DW_TAG_thrown_type"; | |
502 | case DW_TAG_try_block: return "DW_TAG_try_block"; | |
503 | case DW_TAG_variant_part: return "DW_TAG_variant_part"; | |
504 | case DW_TAG_variable: return "DW_TAG_variable"; | |
505 | case DW_TAG_volatile_type: return "DW_TAG_volatile_type"; | |
506 | case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop"; | |
507 | case DW_TAG_format_label: return "DW_TAG_format_label"; | |
508 | case DW_TAG_function_template: return "DW_TAG_function_template"; | |
509 | case DW_TAG_class_template: return "DW_TAG_class_template"; | |
510 | /* DWARF 2.1 values. */ | |
511 | case DW_TAG_dwarf_procedure: return "DW_TAG_dwarf_procedure"; | |
512 | case DW_TAG_restrict_type: return "DW_TAG_restrict_type"; | |
513 | case DW_TAG_interface_type: return "DW_TAG_interface_type"; | |
514 | case DW_TAG_namespace: return "DW_TAG_namespace"; | |
515 | case DW_TAG_imported_module: return "DW_TAG_imported_module"; | |
516 | case DW_TAG_unspecified_type: return "DW_TAG_unspecified_type"; | |
517 | case DW_TAG_partial_unit: return "DW_TAG_partial_unit"; | |
518 | case DW_TAG_imported_unit: return "DW_TAG_imported_unit"; | |
519 | /* UPC values. */ | |
520 | case DW_TAG_upc_shared_type: return "DW_TAG_upc_shared_type"; | |
521 | case DW_TAG_upc_strict_type: return "DW_TAG_upc_strict_type"; | |
522 | case DW_TAG_upc_relaxed_type: return "DW_TAG_upc_relaxed_type"; | |
523 | default: | |
524 | { | |
525 | static char buffer[100]; | |
526 | ||
527 | snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag); | |
528 | return buffer; | |
529 | } | |
530 | } | |
531 | } | |
532 | ||
533 | static char * | |
534 | get_FORM_name (unsigned long form) | |
535 | { | |
536 | switch (form) | |
537 | { | |
538 | case DW_FORM_addr: return "DW_FORM_addr"; | |
539 | case DW_FORM_block2: return "DW_FORM_block2"; | |
540 | case DW_FORM_block4: return "DW_FORM_block4"; | |
541 | case DW_FORM_data2: return "DW_FORM_data2"; | |
542 | case DW_FORM_data4: return "DW_FORM_data4"; | |
543 | case DW_FORM_data8: return "DW_FORM_data8"; | |
544 | case DW_FORM_string: return "DW_FORM_string"; | |
545 | case DW_FORM_block: return "DW_FORM_block"; | |
546 | case DW_FORM_block1: return "DW_FORM_block1"; | |
547 | case DW_FORM_data1: return "DW_FORM_data1"; | |
548 | case DW_FORM_flag: return "DW_FORM_flag"; | |
549 | case DW_FORM_sdata: return "DW_FORM_sdata"; | |
550 | case DW_FORM_strp: return "DW_FORM_strp"; | |
551 | case DW_FORM_udata: return "DW_FORM_udata"; | |
552 | case DW_FORM_ref_addr: return "DW_FORM_ref_addr"; | |
553 | case DW_FORM_ref1: return "DW_FORM_ref1"; | |
554 | case DW_FORM_ref2: return "DW_FORM_ref2"; | |
555 | case DW_FORM_ref4: return "DW_FORM_ref4"; | |
556 | case DW_FORM_ref8: return "DW_FORM_ref8"; | |
557 | case DW_FORM_ref_udata: return "DW_FORM_ref_udata"; | |
558 | case DW_FORM_indirect: return "DW_FORM_indirect"; | |
559 | default: | |
560 | { | |
561 | static char buffer[100]; | |
562 | ||
563 | snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form); | |
564 | return buffer; | |
565 | } | |
566 | } | |
567 | } | |
568 | ||
569 | static unsigned char * | |
570 | display_block (unsigned char *data, unsigned long length) | |
571 | { | |
572 | printf (_(" %lu byte block: "), length); | |
573 | ||
574 | while (length --) | |
575 | printf ("%lx ", (unsigned long) byte_get (data++, 1)); | |
576 | ||
577 | return data; | |
578 | } | |
579 | ||
580 | static int | |
581 | decode_location_expression (unsigned char * data, | |
582 | unsigned int pointer_size, | |
583 | unsigned long length, | |
584 | unsigned long cu_offset) | |
585 | { | |
586 | unsigned op; | |
587 | unsigned int bytes_read; | |
588 | unsigned long uvalue; | |
589 | unsigned char *end = data + length; | |
590 | int need_frame_base = 0; | |
591 | ||
592 | while (data < end) | |
593 | { | |
594 | op = *data++; | |
595 | ||
596 | switch (op) | |
597 | { | |
598 | case DW_OP_addr: | |
599 | printf ("DW_OP_addr: %lx", | |
600 | (unsigned long) byte_get (data, pointer_size)); | |
601 | data += pointer_size; | |
602 | break; | |
603 | case DW_OP_deref: | |
604 | printf ("DW_OP_deref"); | |
605 | break; | |
606 | case DW_OP_const1u: | |
607 | printf ("DW_OP_const1u: %lu", (unsigned long) byte_get (data++, 1)); | |
608 | break; | |
609 | case DW_OP_const1s: | |
610 | printf ("DW_OP_const1s: %ld", (long) byte_get_signed (data++, 1)); | |
611 | break; | |
612 | case DW_OP_const2u: | |
613 | printf ("DW_OP_const2u: %lu", (unsigned long) byte_get (data, 2)); | |
614 | data += 2; | |
615 | break; | |
616 | case DW_OP_const2s: | |
617 | printf ("DW_OP_const2s: %ld", (long) byte_get_signed (data, 2)); | |
618 | data += 2; | |
619 | break; | |
620 | case DW_OP_const4u: | |
621 | printf ("DW_OP_const4u: %lu", (unsigned long) byte_get (data, 4)); | |
622 | data += 4; | |
623 | break; | |
624 | case DW_OP_const4s: | |
625 | printf ("DW_OP_const4s: %ld", (long) byte_get_signed (data, 4)); | |
626 | data += 4; | |
627 | break; | |
628 | case DW_OP_const8u: | |
629 | printf ("DW_OP_const8u: %lu %lu", (unsigned long) byte_get (data, 4), | |
630 | (unsigned long) byte_get (data + 4, 4)); | |
631 | data += 8; | |
632 | break; | |
633 | case DW_OP_const8s: | |
634 | printf ("DW_OP_const8s: %ld %ld", (long) byte_get (data, 4), | |
635 | (long) byte_get (data + 4, 4)); | |
636 | data += 8; | |
637 | break; | |
638 | case DW_OP_constu: | |
639 | printf ("DW_OP_constu: %lu", read_leb128 (data, &bytes_read, 0)); | |
640 | data += bytes_read; | |
641 | break; | |
642 | case DW_OP_consts: | |
643 | printf ("DW_OP_consts: %ld", read_leb128 (data, &bytes_read, 1)); | |
644 | data += bytes_read; | |
645 | break; | |
646 | case DW_OP_dup: | |
647 | printf ("DW_OP_dup"); | |
648 | break; | |
649 | case DW_OP_drop: | |
650 | printf ("DW_OP_drop"); | |
651 | break; | |
652 | case DW_OP_over: | |
653 | printf ("DW_OP_over"); | |
654 | break; | |
655 | case DW_OP_pick: | |
656 | printf ("DW_OP_pick: %ld", (unsigned long) byte_get (data++, 1)); | |
657 | break; | |
658 | case DW_OP_swap: | |
659 | printf ("DW_OP_swap"); | |
660 | break; | |
661 | case DW_OP_rot: | |
662 | printf ("DW_OP_rot"); | |
663 | break; | |
664 | case DW_OP_xderef: | |
665 | printf ("DW_OP_xderef"); | |
666 | break; | |
667 | case DW_OP_abs: | |
668 | printf ("DW_OP_abs"); | |
669 | break; | |
670 | case DW_OP_and: | |
671 | printf ("DW_OP_and"); | |
672 | break; | |
673 | case DW_OP_div: | |
674 | printf ("DW_OP_div"); | |
675 | break; | |
676 | case DW_OP_minus: | |
677 | printf ("DW_OP_minus"); | |
678 | break; | |
679 | case DW_OP_mod: | |
680 | printf ("DW_OP_mod"); | |
681 | break; | |
682 | case DW_OP_mul: | |
683 | printf ("DW_OP_mul"); | |
684 | break; | |
685 | case DW_OP_neg: | |
686 | printf ("DW_OP_neg"); | |
687 | break; | |
688 | case DW_OP_not: | |
689 | printf ("DW_OP_not"); | |
690 | break; | |
691 | case DW_OP_or: | |
692 | printf ("DW_OP_or"); | |
693 | break; | |
694 | case DW_OP_plus: | |
695 | printf ("DW_OP_plus"); | |
696 | break; | |
697 | case DW_OP_plus_uconst: | |
698 | printf ("DW_OP_plus_uconst: %lu", | |
699 | read_leb128 (data, &bytes_read, 0)); | |
700 | data += bytes_read; | |
701 | break; | |
702 | case DW_OP_shl: | |
703 | printf ("DW_OP_shl"); | |
704 | break; | |
705 | case DW_OP_shr: | |
706 | printf ("DW_OP_shr"); | |
707 | break; | |
708 | case DW_OP_shra: | |
709 | printf ("DW_OP_shra"); | |
710 | break; | |
711 | case DW_OP_xor: | |
712 | printf ("DW_OP_xor"); | |
713 | break; | |
714 | case DW_OP_bra: | |
715 | printf ("DW_OP_bra: %ld", (long) byte_get_signed (data, 2)); | |
716 | data += 2; | |
717 | break; | |
718 | case DW_OP_eq: | |
719 | printf ("DW_OP_eq"); | |
720 | break; | |
721 | case DW_OP_ge: | |
722 | printf ("DW_OP_ge"); | |
723 | break; | |
724 | case DW_OP_gt: | |
725 | printf ("DW_OP_gt"); | |
726 | break; | |
727 | case DW_OP_le: | |
728 | printf ("DW_OP_le"); | |
729 | break; | |
730 | case DW_OP_lt: | |
731 | printf ("DW_OP_lt"); | |
732 | break; | |
733 | case DW_OP_ne: | |
734 | printf ("DW_OP_ne"); | |
735 | break; | |
736 | case DW_OP_skip: | |
737 | printf ("DW_OP_skip: %ld", (long) byte_get_signed (data, 2)); | |
738 | data += 2; | |
739 | break; | |
740 | ||
741 | case DW_OP_lit0: | |
742 | case DW_OP_lit1: | |
743 | case DW_OP_lit2: | |
744 | case DW_OP_lit3: | |
745 | case DW_OP_lit4: | |
746 | case DW_OP_lit5: | |
747 | case DW_OP_lit6: | |
748 | case DW_OP_lit7: | |
749 | case DW_OP_lit8: | |
750 | case DW_OP_lit9: | |
751 | case DW_OP_lit10: | |
752 | case DW_OP_lit11: | |
753 | case DW_OP_lit12: | |
754 | case DW_OP_lit13: | |
755 | case DW_OP_lit14: | |
756 | case DW_OP_lit15: | |
757 | case DW_OP_lit16: | |
758 | case DW_OP_lit17: | |
759 | case DW_OP_lit18: | |
760 | case DW_OP_lit19: | |
761 | case DW_OP_lit20: | |
762 | case DW_OP_lit21: | |
763 | case DW_OP_lit22: | |
764 | case DW_OP_lit23: | |
765 | case DW_OP_lit24: | |
766 | case DW_OP_lit25: | |
767 | case DW_OP_lit26: | |
768 | case DW_OP_lit27: | |
769 | case DW_OP_lit28: | |
770 | case DW_OP_lit29: | |
771 | case DW_OP_lit30: | |
772 | case DW_OP_lit31: | |
773 | printf ("DW_OP_lit%d", op - DW_OP_lit0); | |
774 | break; | |
775 | ||
776 | case DW_OP_reg0: | |
777 | case DW_OP_reg1: | |
778 | case DW_OP_reg2: | |
779 | case DW_OP_reg3: | |
780 | case DW_OP_reg4: | |
781 | case DW_OP_reg5: | |
782 | case DW_OP_reg6: | |
783 | case DW_OP_reg7: | |
784 | case DW_OP_reg8: | |
785 | case DW_OP_reg9: | |
786 | case DW_OP_reg10: | |
787 | case DW_OP_reg11: | |
788 | case DW_OP_reg12: | |
789 | case DW_OP_reg13: | |
790 | case DW_OP_reg14: | |
791 | case DW_OP_reg15: | |
792 | case DW_OP_reg16: | |
793 | case DW_OP_reg17: | |
794 | case DW_OP_reg18: | |
795 | case DW_OP_reg19: | |
796 | case DW_OP_reg20: | |
797 | case DW_OP_reg21: | |
798 | case DW_OP_reg22: | |
799 | case DW_OP_reg23: | |
800 | case DW_OP_reg24: | |
801 | case DW_OP_reg25: | |
802 | case DW_OP_reg26: | |
803 | case DW_OP_reg27: | |
804 | case DW_OP_reg28: | |
805 | case DW_OP_reg29: | |
806 | case DW_OP_reg30: | |
807 | case DW_OP_reg31: | |
808 | printf ("DW_OP_reg%d", op - DW_OP_reg0); | |
809 | break; | |
810 | ||
811 | case DW_OP_breg0: | |
812 | case DW_OP_breg1: | |
813 | case DW_OP_breg2: | |
814 | case DW_OP_breg3: | |
815 | case DW_OP_breg4: | |
816 | case DW_OP_breg5: | |
817 | case DW_OP_breg6: | |
818 | case DW_OP_breg7: | |
819 | case DW_OP_breg8: | |
820 | case DW_OP_breg9: | |
821 | case DW_OP_breg10: | |
822 | case DW_OP_breg11: | |
823 | case DW_OP_breg12: | |
824 | case DW_OP_breg13: | |
825 | case DW_OP_breg14: | |
826 | case DW_OP_breg15: | |
827 | case DW_OP_breg16: | |
828 | case DW_OP_breg17: | |
829 | case DW_OP_breg18: | |
830 | case DW_OP_breg19: | |
831 | case DW_OP_breg20: | |
832 | case DW_OP_breg21: | |
833 | case DW_OP_breg22: | |
834 | case DW_OP_breg23: | |
835 | case DW_OP_breg24: | |
836 | case DW_OP_breg25: | |
837 | case DW_OP_breg26: | |
838 | case DW_OP_breg27: | |
839 | case DW_OP_breg28: | |
840 | case DW_OP_breg29: | |
841 | case DW_OP_breg30: | |
842 | case DW_OP_breg31: | |
843 | printf ("DW_OP_breg%d: %ld", op - DW_OP_breg0, | |
844 | read_leb128 (data, &bytes_read, 1)); | |
845 | data += bytes_read; | |
846 | break; | |
847 | ||
848 | case DW_OP_regx: | |
849 | printf ("DW_OP_regx: %lu", read_leb128 (data, &bytes_read, 0)); | |
850 | data += bytes_read; | |
851 | break; | |
852 | case DW_OP_fbreg: | |
853 | need_frame_base = 1; | |
854 | printf ("DW_OP_fbreg: %ld", read_leb128 (data, &bytes_read, 1)); | |
855 | data += bytes_read; | |
856 | break; | |
857 | case DW_OP_bregx: | |
858 | uvalue = read_leb128 (data, &bytes_read, 0); | |
859 | data += bytes_read; | |
860 | printf ("DW_OP_bregx: %lu %ld", uvalue, | |
861 | read_leb128 (data, &bytes_read, 1)); | |
862 | data += bytes_read; | |
863 | break; | |
864 | case DW_OP_piece: | |
865 | printf ("DW_OP_piece: %lu", read_leb128 (data, &bytes_read, 0)); | |
866 | data += bytes_read; | |
867 | break; | |
868 | case DW_OP_deref_size: | |
869 | printf ("DW_OP_deref_size: %ld", (long) byte_get (data++, 1)); | |
870 | break; | |
871 | case DW_OP_xderef_size: | |
872 | printf ("DW_OP_xderef_size: %ld", (long) byte_get (data++, 1)); | |
873 | break; | |
874 | case DW_OP_nop: | |
875 | printf ("DW_OP_nop"); | |
876 | break; | |
877 | ||
878 | /* DWARF 3 extensions. */ | |
879 | case DW_OP_push_object_address: | |
880 | printf ("DW_OP_push_object_address"); | |
881 | break; | |
882 | case DW_OP_call2: | |
883 | /* XXX: Strictly speaking for 64-bit DWARF3 files | |
884 | this ought to be an 8-byte wide computation. */ | |
885 | printf ("DW_OP_call2: <%lx>", (long) byte_get (data, 2) + cu_offset); | |
886 | data += 2; | |
887 | break; | |
888 | case DW_OP_call4: | |
889 | /* XXX: Strictly speaking for 64-bit DWARF3 files | |
890 | this ought to be an 8-byte wide computation. */ | |
891 | printf ("DW_OP_call4: <%lx>", (long) byte_get (data, 4) + cu_offset); | |
892 | data += 4; | |
893 | break; | |
894 | case DW_OP_call_ref: | |
895 | printf ("DW_OP_call_ref"); | |
896 | break; | |
a87b0a59 NS |
897 | case DW_OP_form_tls_address: |
898 | printf ("DW_OP_form_tls_address"); | |
899 | break; | |
19e6b90e L |
900 | |
901 | /* GNU extensions. */ | |
902 | case DW_OP_GNU_push_tls_address: | |
903 | printf ("DW_OP_GNU_push_tls_address"); | |
904 | break; | |
905 | ||
906 | default: | |
907 | if (op >= DW_OP_lo_user | |
908 | && op <= DW_OP_hi_user) | |
909 | printf (_("(User defined location op)")); | |
910 | else | |
911 | printf (_("(Unknown location op)")); | |
912 | /* No way to tell where the next op is, so just bail. */ | |
913 | return need_frame_base; | |
914 | } | |
915 | ||
916 | /* Separate the ops. */ | |
917 | if (data < end) | |
918 | printf ("; "); | |
919 | } | |
920 | ||
921 | return need_frame_base; | |
922 | } | |
923 | ||
924 | static unsigned char * | |
925 | read_and_display_attr_value (unsigned long attribute, | |
926 | unsigned long form, | |
927 | unsigned char *data, | |
928 | unsigned long cu_offset, | |
929 | unsigned long pointer_size, | |
930 | unsigned long offset_size, | |
931 | int dwarf_version, | |
932 | debug_info *debug_info_p, | |
933 | int do_loc) | |
934 | { | |
935 | unsigned long uvalue = 0; | |
936 | unsigned char *block_start = NULL; | |
937 | unsigned int bytes_read; | |
938 | ||
939 | switch (form) | |
940 | { | |
941 | default: | |
942 | break; | |
943 | ||
944 | case DW_FORM_ref_addr: | |
945 | if (dwarf_version == 2) | |
946 | { | |
947 | uvalue = byte_get (data, pointer_size); | |
948 | data += pointer_size; | |
949 | } | |
950 | else if (dwarf_version == 3) | |
951 | { | |
952 | uvalue = byte_get (data, offset_size); | |
953 | data += offset_size; | |
954 | } | |
955 | else | |
956 | { | |
957 | error (_("Internal error: DWARF version is not 2 or 3.\n")); | |
958 | } | |
959 | break; | |
960 | ||
961 | case DW_FORM_addr: | |
962 | uvalue = byte_get (data, pointer_size); | |
963 | data += pointer_size; | |
964 | break; | |
965 | ||
966 | case DW_FORM_strp: | |
967 | uvalue = byte_get (data, offset_size); | |
968 | data += offset_size; | |
969 | break; | |
970 | ||
971 | case DW_FORM_ref1: | |
972 | case DW_FORM_flag: | |
973 | case DW_FORM_data1: | |
974 | uvalue = byte_get (data++, 1); | |
975 | break; | |
976 | ||
977 | case DW_FORM_ref2: | |
978 | case DW_FORM_data2: | |
979 | uvalue = byte_get (data, 2); | |
980 | data += 2; | |
981 | break; | |
982 | ||
983 | case DW_FORM_ref4: | |
984 | case DW_FORM_data4: | |
985 | uvalue = byte_get (data, 4); | |
986 | data += 4; | |
987 | break; | |
988 | ||
989 | case DW_FORM_sdata: | |
990 | uvalue = read_leb128 (data, & bytes_read, 1); | |
991 | data += bytes_read; | |
992 | break; | |
993 | ||
994 | case DW_FORM_ref_udata: | |
995 | case DW_FORM_udata: | |
996 | uvalue = read_leb128 (data, & bytes_read, 0); | |
997 | data += bytes_read; | |
998 | break; | |
999 | ||
1000 | case DW_FORM_indirect: | |
1001 | form = read_leb128 (data, & bytes_read, 0); | |
1002 | data += bytes_read; | |
1003 | if (!do_loc) | |
1004 | printf (" %s", get_FORM_name (form)); | |
1005 | return read_and_display_attr_value (attribute, form, data, | |
1006 | cu_offset, pointer_size, | |
1007 | offset_size, dwarf_version, | |
1008 | debug_info_p, do_loc); | |
1009 | } | |
1010 | ||
1011 | switch (form) | |
1012 | { | |
1013 | case DW_FORM_ref_addr: | |
1014 | if (!do_loc) | |
1015 | printf (" <#%lx>", uvalue); | |
1016 | break; | |
1017 | ||
1018 | case DW_FORM_ref1: | |
1019 | case DW_FORM_ref2: | |
1020 | case DW_FORM_ref4: | |
1021 | case DW_FORM_ref_udata: | |
1022 | if (!do_loc) | |
1023 | printf (" <%lx>", uvalue + cu_offset); | |
1024 | break; | |
1025 | ||
1026 | case DW_FORM_data4: | |
1027 | case DW_FORM_addr: | |
1028 | if (!do_loc) | |
1029 | printf (" %#lx", uvalue); | |
1030 | break; | |
1031 | ||
1032 | case DW_FORM_flag: | |
1033 | case DW_FORM_data1: | |
1034 | case DW_FORM_data2: | |
1035 | case DW_FORM_sdata: | |
1036 | case DW_FORM_udata: | |
1037 | if (!do_loc) | |
1038 | printf (" %ld", uvalue); | |
1039 | break; | |
1040 | ||
1041 | case DW_FORM_ref8: | |
1042 | case DW_FORM_data8: | |
1043 | if (!do_loc) | |
1044 | { | |
1045 | uvalue = byte_get (data, 4); | |
1046 | printf (" %lx", uvalue); | |
1047 | printf (" %lx", (unsigned long) byte_get (data + 4, 4)); | |
1048 | } | |
1049 | if ((do_loc || do_debug_loc || do_debug_ranges) | |
1050 | && num_debug_info_entries == 0) | |
1051 | { | |
1052 | if (sizeof (uvalue) == 8) | |
1053 | uvalue = byte_get (data, 8); | |
1054 | else | |
1055 | error (_("DW_FORM_data8 is unsupported when sizeof (unsigned long) != 8\n")); | |
1056 | } | |
1057 | data += 8; | |
1058 | break; | |
1059 | ||
1060 | case DW_FORM_string: | |
1061 | if (!do_loc) | |
1062 | printf (" %s", data); | |
1063 | data += strlen ((char *) data) + 1; | |
1064 | break; | |
1065 | ||
1066 | case DW_FORM_block: | |
1067 | uvalue = read_leb128 (data, & bytes_read, 0); | |
1068 | block_start = data + bytes_read; | |
1069 | if (do_loc) | |
1070 | data = block_start + uvalue; | |
1071 | else | |
1072 | data = display_block (block_start, uvalue); | |
1073 | break; | |
1074 | ||
1075 | case DW_FORM_block1: | |
1076 | uvalue = byte_get (data, 1); | |
1077 | block_start = data + 1; | |
1078 | if (do_loc) | |
1079 | data = block_start + uvalue; | |
1080 | else | |
1081 | data = display_block (block_start, uvalue); | |
1082 | break; | |
1083 | ||
1084 | case DW_FORM_block2: | |
1085 | uvalue = byte_get (data, 2); | |
1086 | block_start = data + 2; | |
1087 | if (do_loc) | |
1088 | data = block_start + uvalue; | |
1089 | else | |
1090 | data = display_block (block_start, uvalue); | |
1091 | break; | |
1092 | ||
1093 | case DW_FORM_block4: | |
1094 | uvalue = byte_get (data, 4); | |
1095 | block_start = data + 4; | |
1096 | if (do_loc) | |
1097 | data = block_start + uvalue; | |
1098 | else | |
1099 | data = display_block (block_start, uvalue); | |
1100 | break; | |
1101 | ||
1102 | case DW_FORM_strp: | |
1103 | if (!do_loc) | |
1104 | printf (_(" (indirect string, offset: 0x%lx): %s"), | |
1105 | uvalue, fetch_indirect_string (uvalue)); | |
1106 | break; | |
1107 | ||
1108 | case DW_FORM_indirect: | |
1109 | /* Handled above. */ | |
1110 | break; | |
1111 | ||
1112 | default: | |
1113 | warn (_("Unrecognized form: %lu\n"), form); | |
1114 | break; | |
1115 | } | |
1116 | ||
1117 | /* For some attributes we can display further information. */ | |
1118 | if ((do_loc || do_debug_loc || do_debug_ranges) | |
1119 | && num_debug_info_entries == 0) | |
1120 | { | |
1121 | switch (attribute) | |
1122 | { | |
1123 | case DW_AT_frame_base: | |
1124 | have_frame_base = 1; | |
1125 | case DW_AT_location: | |
1126 | case DW_AT_data_member_location: | |
1127 | case DW_AT_vtable_elem_location: | |
1128 | case DW_AT_allocated: | |
1129 | case DW_AT_associated: | |
1130 | case DW_AT_data_location: | |
1131 | case DW_AT_stride: | |
1132 | case DW_AT_upper_bound: | |
1133 | case DW_AT_lower_bound: | |
1134 | if (form == DW_FORM_data4 || form == DW_FORM_data8) | |
1135 | { | |
1136 | /* Process location list. */ | |
1137 | unsigned int max = debug_info_p->max_loc_offsets; | |
1138 | unsigned int num = debug_info_p->num_loc_offsets; | |
1139 | ||
1140 | if (max == 0 || num >= max) | |
1141 | { | |
1142 | max += 1024; | |
1143 | debug_info_p->loc_offsets | |
1144 | = xcrealloc (debug_info_p->loc_offsets, | |
1145 | max, sizeof (*debug_info_p->loc_offsets)); | |
1146 | debug_info_p->have_frame_base | |
1147 | = xcrealloc (debug_info_p->have_frame_base, | |
1148 | max, sizeof (*debug_info_p->have_frame_base)); | |
1149 | debug_info_p->max_loc_offsets = max; | |
1150 | } | |
1151 | debug_info_p->loc_offsets [num] = uvalue; | |
1152 | debug_info_p->have_frame_base [num] = have_frame_base; | |
1153 | debug_info_p->num_loc_offsets++; | |
1154 | } | |
1155 | break; | |
1156 | ||
1157 | case DW_AT_low_pc: | |
1158 | if (need_base_address) | |
1159 | debug_info_p->base_address = uvalue; | |
1160 | break; | |
1161 | ||
1162 | case DW_AT_ranges: | |
1163 | if (form == DW_FORM_data4 || form == DW_FORM_data8) | |
1164 | { | |
1165 | /* Process range list. */ | |
1166 | unsigned int max = debug_info_p->max_range_lists; | |
1167 | unsigned int num = debug_info_p->num_range_lists; | |
1168 | ||
1169 | if (max == 0 || num >= max) | |
1170 | { | |
1171 | max += 1024; | |
1172 | debug_info_p->range_lists | |
1173 | = xcrealloc (debug_info_p->range_lists, | |
1174 | max, sizeof (*debug_info_p->range_lists)); | |
1175 | debug_info_p->max_range_lists = max; | |
1176 | } | |
1177 | debug_info_p->range_lists [num] = uvalue; | |
1178 | debug_info_p->num_range_lists++; | |
1179 | } | |
1180 | break; | |
1181 | ||
1182 | default: | |
1183 | break; | |
1184 | } | |
1185 | } | |
1186 | ||
1187 | if (do_loc) | |
1188 | return data; | |
1189 | ||
1190 | printf ("\t"); | |
1191 | ||
1192 | switch (attribute) | |
1193 | { | |
1194 | case DW_AT_inline: | |
1195 | switch (uvalue) | |
1196 | { | |
1197 | case DW_INL_not_inlined: | |
1198 | printf (_("(not inlined)")); | |
1199 | break; | |
1200 | case DW_INL_inlined: | |
1201 | printf (_("(inlined)")); | |
1202 | break; | |
1203 | case DW_INL_declared_not_inlined: | |
1204 | printf (_("(declared as inline but ignored)")); | |
1205 | break; | |
1206 | case DW_INL_declared_inlined: | |
1207 | printf (_("(declared as inline and inlined)")); | |
1208 | break; | |
1209 | default: | |
1210 | printf (_(" (Unknown inline attribute value: %lx)"), uvalue); | |
1211 | break; | |
1212 | } | |
1213 | break; | |
1214 | ||
1215 | case DW_AT_language: | |
1216 | switch (uvalue) | |
1217 | { | |
4b78141a | 1218 | /* Ordered by the numeric value of these constants. */ |
19e6b90e | 1219 | case DW_LANG_C89: printf ("(ANSI C)"); break; |
4b78141a NC |
1220 | case DW_LANG_C: printf ("(non-ANSI C)"); break; |
1221 | case DW_LANG_Ada83: printf ("(Ada)"); break; | |
19e6b90e | 1222 | case DW_LANG_C_plus_plus: printf ("(C++)"); break; |
4b78141a NC |
1223 | case DW_LANG_Cobol74: printf ("(Cobol 74)"); break; |
1224 | case DW_LANG_Cobol85: printf ("(Cobol 85)"); break; | |
19e6b90e L |
1225 | case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break; |
1226 | case DW_LANG_Fortran90: printf ("(Fortran 90)"); break; | |
19e6b90e | 1227 | case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break; |
4b78141a | 1228 | case DW_LANG_Modula2: printf ("(Modula 2)"); break; |
19e6b90e | 1229 | /* DWARF 2.1 values. */ |
4b78141a | 1230 | case DW_LANG_Java: printf ("(Java)"); break; |
19e6b90e L |
1231 | case DW_LANG_C99: printf ("(ANSI C99)"); break; |
1232 | case DW_LANG_Ada95: printf ("(ADA 95)"); break; | |
1233 | case DW_LANG_Fortran95: printf ("(Fortran 95)"); break; | |
4b78141a NC |
1234 | /* DWARF 3 values. */ |
1235 | case DW_LANG_PLI: printf ("(PLI)"); break; | |
1236 | case DW_LANG_ObjC: printf ("(Objective C)"); break; | |
1237 | case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break; | |
1238 | case DW_LANG_UPC: printf ("(Unified Parallel C)"); break; | |
1239 | case DW_LANG_D: printf ("(D)"); break; | |
19e6b90e L |
1240 | /* MIPS extension. */ |
1241 | case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break; | |
1242 | /* UPC extension. */ | |
1243 | case DW_LANG_Upc: printf ("(Unified Parallel C)"); break; | |
1244 | default: | |
4b78141a NC |
1245 | if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user) |
1246 | printf ("(implementation defined: %lx)", uvalue); | |
1247 | else | |
1248 | printf ("(Unknown: %lx)", uvalue); | |
19e6b90e L |
1249 | break; |
1250 | } | |
1251 | break; | |
1252 | ||
1253 | case DW_AT_encoding: | |
1254 | switch (uvalue) | |
1255 | { | |
1256 | case DW_ATE_void: printf ("(void)"); break; | |
1257 | case DW_ATE_address: printf ("(machine address)"); break; | |
1258 | case DW_ATE_boolean: printf ("(boolean)"); break; | |
1259 | case DW_ATE_complex_float: printf ("(complex float)"); break; | |
1260 | case DW_ATE_float: printf ("(float)"); break; | |
1261 | case DW_ATE_signed: printf ("(signed)"); break; | |
1262 | case DW_ATE_signed_char: printf ("(signed char)"); break; | |
1263 | case DW_ATE_unsigned: printf ("(unsigned)"); break; | |
1264 | case DW_ATE_unsigned_char: printf ("(unsigned char)"); break; | |
1265 | /* DWARF 2.1 value. */ | |
1266 | case DW_ATE_imaginary_float: printf ("(imaginary float)"); break; | |
1267 | case DW_ATE_decimal_float: printf ("(decimal float)"); break; | |
1268 | default: | |
1269 | if (uvalue >= DW_ATE_lo_user | |
1270 | && uvalue <= DW_ATE_hi_user) | |
1271 | printf ("(user defined type)"); | |
1272 | else | |
1273 | printf ("(unknown type)"); | |
1274 | break; | |
1275 | } | |
1276 | break; | |
1277 | ||
1278 | case DW_AT_accessibility: | |
1279 | switch (uvalue) | |
1280 | { | |
1281 | case DW_ACCESS_public: printf ("(public)"); break; | |
1282 | case DW_ACCESS_protected: printf ("(protected)"); break; | |
1283 | case DW_ACCESS_private: printf ("(private)"); break; | |
1284 | default: | |
1285 | printf ("(unknown accessibility)"); | |
1286 | break; | |
1287 | } | |
1288 | break; | |
1289 | ||
1290 | case DW_AT_visibility: | |
1291 | switch (uvalue) | |
1292 | { | |
1293 | case DW_VIS_local: printf ("(local)"); break; | |
1294 | case DW_VIS_exported: printf ("(exported)"); break; | |
1295 | case DW_VIS_qualified: printf ("(qualified)"); break; | |
1296 | default: printf ("(unknown visibility)"); break; | |
1297 | } | |
1298 | break; | |
1299 | ||
1300 | case DW_AT_virtuality: | |
1301 | switch (uvalue) | |
1302 | { | |
1303 | case DW_VIRTUALITY_none: printf ("(none)"); break; | |
1304 | case DW_VIRTUALITY_virtual: printf ("(virtual)"); break; | |
1305 | case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break; | |
1306 | default: printf ("(unknown virtuality)"); break; | |
1307 | } | |
1308 | break; | |
1309 | ||
1310 | case DW_AT_identifier_case: | |
1311 | switch (uvalue) | |
1312 | { | |
1313 | case DW_ID_case_sensitive: printf ("(case_sensitive)"); break; | |
1314 | case DW_ID_up_case: printf ("(up_case)"); break; | |
1315 | case DW_ID_down_case: printf ("(down_case)"); break; | |
1316 | case DW_ID_case_insensitive: printf ("(case_insensitive)"); break; | |
1317 | default: printf ("(unknown case)"); break; | |
1318 | } | |
1319 | break; | |
1320 | ||
1321 | case DW_AT_calling_convention: | |
1322 | switch (uvalue) | |
1323 | { | |
1324 | case DW_CC_normal: printf ("(normal)"); break; | |
1325 | case DW_CC_program: printf ("(program)"); break; | |
1326 | case DW_CC_nocall: printf ("(nocall)"); break; | |
1327 | default: | |
1328 | if (uvalue >= DW_CC_lo_user | |
1329 | && uvalue <= DW_CC_hi_user) | |
1330 | printf ("(user defined)"); | |
1331 | else | |
1332 | printf ("(unknown convention)"); | |
1333 | } | |
1334 | break; | |
1335 | ||
1336 | case DW_AT_ordering: | |
1337 | switch (uvalue) | |
1338 | { | |
1339 | case -1: printf ("(undefined)"); break; | |
1340 | case 0: printf ("(row major)"); break; | |
1341 | case 1: printf ("(column major)"); break; | |
1342 | } | |
1343 | break; | |
1344 | ||
1345 | case DW_AT_frame_base: | |
1346 | have_frame_base = 1; | |
1347 | case DW_AT_location: | |
1348 | case DW_AT_data_member_location: | |
1349 | case DW_AT_vtable_elem_location: | |
1350 | case DW_AT_allocated: | |
1351 | case DW_AT_associated: | |
1352 | case DW_AT_data_location: | |
1353 | case DW_AT_stride: | |
1354 | case DW_AT_upper_bound: | |
1355 | case DW_AT_lower_bound: | |
1356 | if (block_start) | |
1357 | { | |
1358 | int need_frame_base; | |
1359 | ||
1360 | printf ("("); | |
1361 | need_frame_base = decode_location_expression (block_start, | |
1362 | pointer_size, | |
1363 | uvalue, | |
1364 | cu_offset); | |
1365 | printf (")"); | |
1366 | if (need_frame_base && !have_frame_base) | |
1367 | printf (_(" [without DW_AT_frame_base]")); | |
1368 | } | |
1369 | else if (form == DW_FORM_data4 || form == DW_FORM_data8) | |
1370 | printf (_("(location list)")); | |
1371 | ||
1372 | break; | |
1373 | ||
1374 | default: | |
1375 | break; | |
1376 | } | |
1377 | ||
1378 | return data; | |
1379 | } | |
1380 | ||
1381 | static char * | |
1382 | get_AT_name (unsigned long attribute) | |
1383 | { | |
1384 | switch (attribute) | |
1385 | { | |
1386 | case DW_AT_sibling: return "DW_AT_sibling"; | |
1387 | case DW_AT_location: return "DW_AT_location"; | |
1388 | case DW_AT_name: return "DW_AT_name"; | |
1389 | case DW_AT_ordering: return "DW_AT_ordering"; | |
1390 | case DW_AT_subscr_data: return "DW_AT_subscr_data"; | |
1391 | case DW_AT_byte_size: return "DW_AT_byte_size"; | |
1392 | case DW_AT_bit_offset: return "DW_AT_bit_offset"; | |
1393 | case DW_AT_bit_size: return "DW_AT_bit_size"; | |
1394 | case DW_AT_element_list: return "DW_AT_element_list"; | |
1395 | case DW_AT_stmt_list: return "DW_AT_stmt_list"; | |
1396 | case DW_AT_low_pc: return "DW_AT_low_pc"; | |
1397 | case DW_AT_high_pc: return "DW_AT_high_pc"; | |
1398 | case DW_AT_language: return "DW_AT_language"; | |
1399 | case DW_AT_member: return "DW_AT_member"; | |
1400 | case DW_AT_discr: return "DW_AT_discr"; | |
1401 | case DW_AT_discr_value: return "DW_AT_discr_value"; | |
1402 | case DW_AT_visibility: return "DW_AT_visibility"; | |
1403 | case DW_AT_import: return "DW_AT_import"; | |
1404 | case DW_AT_string_length: return "DW_AT_string_length"; | |
1405 | case DW_AT_common_reference: return "DW_AT_common_reference"; | |
1406 | case DW_AT_comp_dir: return "DW_AT_comp_dir"; | |
1407 | case DW_AT_const_value: return "DW_AT_const_value"; | |
1408 | case DW_AT_containing_type: return "DW_AT_containing_type"; | |
1409 | case DW_AT_default_value: return "DW_AT_default_value"; | |
1410 | case DW_AT_inline: return "DW_AT_inline"; | |
1411 | case DW_AT_is_optional: return "DW_AT_is_optional"; | |
1412 | case DW_AT_lower_bound: return "DW_AT_lower_bound"; | |
1413 | case DW_AT_producer: return "DW_AT_producer"; | |
1414 | case DW_AT_prototyped: return "DW_AT_prototyped"; | |
1415 | case DW_AT_return_addr: return "DW_AT_return_addr"; | |
1416 | case DW_AT_start_scope: return "DW_AT_start_scope"; | |
1417 | case DW_AT_stride_size: return "DW_AT_stride_size"; | |
1418 | case DW_AT_upper_bound: return "DW_AT_upper_bound"; | |
1419 | case DW_AT_abstract_origin: return "DW_AT_abstract_origin"; | |
1420 | case DW_AT_accessibility: return "DW_AT_accessibility"; | |
1421 | case DW_AT_address_class: return "DW_AT_address_class"; | |
1422 | case DW_AT_artificial: return "DW_AT_artificial"; | |
1423 | case DW_AT_base_types: return "DW_AT_base_types"; | |
1424 | case DW_AT_calling_convention: return "DW_AT_calling_convention"; | |
1425 | case DW_AT_count: return "DW_AT_count"; | |
1426 | case DW_AT_data_member_location: return "DW_AT_data_member_location"; | |
1427 | case DW_AT_decl_column: return "DW_AT_decl_column"; | |
1428 | case DW_AT_decl_file: return "DW_AT_decl_file"; | |
1429 | case DW_AT_decl_line: return "DW_AT_decl_line"; | |
1430 | case DW_AT_declaration: return "DW_AT_declaration"; | |
1431 | case DW_AT_discr_list: return "DW_AT_discr_list"; | |
1432 | case DW_AT_encoding: return "DW_AT_encoding"; | |
1433 | case DW_AT_external: return "DW_AT_external"; | |
1434 | case DW_AT_frame_base: return "DW_AT_frame_base"; | |
1435 | case DW_AT_friend: return "DW_AT_friend"; | |
1436 | case DW_AT_identifier_case: return "DW_AT_identifier_case"; | |
1437 | case DW_AT_macro_info: return "DW_AT_macro_info"; | |
1438 | case DW_AT_namelist_items: return "DW_AT_namelist_items"; | |
1439 | case DW_AT_priority: return "DW_AT_priority"; | |
1440 | case DW_AT_segment: return "DW_AT_segment"; | |
1441 | case DW_AT_specification: return "DW_AT_specification"; | |
1442 | case DW_AT_static_link: return "DW_AT_static_link"; | |
1443 | case DW_AT_type: return "DW_AT_type"; | |
1444 | case DW_AT_use_location: return "DW_AT_use_location"; | |
1445 | case DW_AT_variable_parameter: return "DW_AT_variable_parameter"; | |
1446 | case DW_AT_virtuality: return "DW_AT_virtuality"; | |
1447 | case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location"; | |
1448 | /* DWARF 2.1 values. */ | |
1449 | case DW_AT_allocated: return "DW_AT_allocated"; | |
1450 | case DW_AT_associated: return "DW_AT_associated"; | |
1451 | case DW_AT_data_location: return "DW_AT_data_location"; | |
1452 | case DW_AT_stride: return "DW_AT_stride"; | |
1453 | case DW_AT_entry_pc: return "DW_AT_entry_pc"; | |
1454 | case DW_AT_use_UTF8: return "DW_AT_use_UTF8"; | |
1455 | case DW_AT_extension: return "DW_AT_extension"; | |
1456 | case DW_AT_ranges: return "DW_AT_ranges"; | |
1457 | case DW_AT_trampoline: return "DW_AT_trampoline"; | |
1458 | case DW_AT_call_column: return "DW_AT_call_column"; | |
1459 | case DW_AT_call_file: return "DW_AT_call_file"; | |
1460 | case DW_AT_call_line: return "DW_AT_call_line"; | |
1461 | /* SGI/MIPS extensions. */ | |
1462 | case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde"; | |
1463 | case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin"; | |
1464 | case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin"; | |
1465 | case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin"; | |
1466 | case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor"; | |
1467 | case DW_AT_MIPS_software_pipeline_depth: | |
1468 | return "DW_AT_MIPS_software_pipeline_depth"; | |
1469 | case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name"; | |
1470 | case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride"; | |
1471 | case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name"; | |
1472 | case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin"; | |
1473 | case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines"; | |
1474 | /* GNU extensions. */ | |
1475 | case DW_AT_sf_names: return "DW_AT_sf_names"; | |
1476 | case DW_AT_src_info: return "DW_AT_src_info"; | |
1477 | case DW_AT_mac_info: return "DW_AT_mac_info"; | |
1478 | case DW_AT_src_coords: return "DW_AT_src_coords"; | |
1479 | case DW_AT_body_begin: return "DW_AT_body_begin"; | |
1480 | case DW_AT_body_end: return "DW_AT_body_end"; | |
1481 | case DW_AT_GNU_vector: return "DW_AT_GNU_vector"; | |
1482 | /* UPC extension. */ | |
1483 | case DW_AT_upc_threads_scaled: return "DW_AT_upc_threads_scaled"; | |
1484 | default: | |
1485 | { | |
1486 | static char buffer[100]; | |
1487 | ||
1488 | snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"), | |
1489 | attribute); | |
1490 | return buffer; | |
1491 | } | |
1492 | } | |
1493 | } | |
1494 | ||
1495 | static unsigned char * | |
1496 | read_and_display_attr (unsigned long attribute, | |
1497 | unsigned long form, | |
1498 | unsigned char *data, | |
1499 | unsigned long cu_offset, | |
1500 | unsigned long pointer_size, | |
1501 | unsigned long offset_size, | |
1502 | int dwarf_version, | |
1503 | debug_info *debug_info_p, | |
1504 | int do_loc) | |
1505 | { | |
1506 | if (!do_loc) | |
750f03b7 | 1507 | printf (" %-18s:", get_AT_name (attribute)); |
19e6b90e L |
1508 | data = read_and_display_attr_value (attribute, form, data, cu_offset, |
1509 | pointer_size, offset_size, | |
1510 | dwarf_version, debug_info_p, | |
1511 | do_loc); | |
1512 | if (!do_loc) | |
1513 | printf ("\n"); | |
1514 | return data; | |
1515 | } | |
1516 | ||
1517 | ||
1518 | /* Process the contents of a .debug_info section. If do_loc is non-zero | |
1519 | then we are scanning for location lists and we do not want to display | |
1520 | anything to the user. */ | |
1521 | ||
1522 | static int | |
1523 | process_debug_info (struct dwarf_section *section, void *file, | |
1524 | int do_loc) | |
1525 | { | |
1526 | unsigned char *start = section->start; | |
1527 | unsigned char *end = start + section->size; | |
1528 | unsigned char *section_begin; | |
1529 | unsigned int unit; | |
1530 | unsigned int num_units = 0; | |
1531 | ||
1532 | if ((do_loc || do_debug_loc || do_debug_ranges) | |
1533 | && num_debug_info_entries == 0) | |
1534 | { | |
1535 | unsigned long length; | |
1536 | ||
1537 | /* First scan the section to get the number of comp units. */ | |
1538 | for (section_begin = start, num_units = 0; section_begin < end; | |
1539 | num_units ++) | |
1540 | { | |
1541 | /* Read the first 4 bytes. For a 32-bit DWARF section, this | |
1542 | will be the length. For a 64-bit DWARF section, it'll be | |
1543 | the escape code 0xffffffff followed by an 8 byte length. */ | |
1544 | length = byte_get (section_begin, 4); | |
1545 | ||
1546 | if (length == 0xffffffff) | |
1547 | { | |
1548 | length = byte_get (section_begin + 4, 8); | |
1549 | section_begin += length + 12; | |
1550 | } | |
1551 | else | |
1552 | section_begin += length + 4; | |
aca88567 NC |
1553 | |
1554 | /* Negative values are illegal, they may even cause infinite | |
1555 | looping. This can happen if we can't accurately apply | |
1556 | relocations to an object file. */ | |
1557 | if ((signed long) length <= 0) | |
1558 | { | |
1559 | warn (_("Corrupt unit length (%lx) found in section %s\n"), length, section->name); | |
1560 | return 0; | |
1561 | } | |
19e6b90e L |
1562 | } |
1563 | ||
1564 | if (num_units == 0) | |
1565 | { | |
1566 | error (_("No comp units in %s section ?"), section->name); | |
1567 | return 0; | |
1568 | } | |
1569 | ||
1570 | /* Then allocate an array to hold the information. */ | |
1571 | debug_information = cmalloc (num_units, | |
1572 | sizeof (* debug_information)); | |
1573 | if (debug_information == NULL) | |
1574 | { | |
1575 | error (_("Not enough memory for a debug info array of %u entries"), | |
1576 | num_units); | |
1577 | return 0; | |
1578 | } | |
1579 | } | |
1580 | ||
1581 | if (!do_loc) | |
1582 | { | |
1583 | printf (_("The section %s contains:\n\n"), section->name); | |
1584 | ||
1585 | load_debug_section (str, file); | |
1586 | } | |
1587 | ||
1588 | load_debug_section (abbrev, file); | |
1589 | if (debug_displays [abbrev].section.start == NULL) | |
1590 | { | |
1591 | warn (_("Unable to locate %s section!\n"), | |
1592 | debug_displays [abbrev].section.name); | |
1593 | return 0; | |
1594 | } | |
1595 | ||
1596 | for (section_begin = start, unit = 0; start < end; unit++) | |
1597 | { | |
1598 | DWARF2_Internal_CompUnit compunit; | |
1599 | unsigned char *hdrptr; | |
1600 | unsigned char *cu_abbrev_offset_ptr; | |
1601 | unsigned char *tags; | |
1602 | int level; | |
1603 | unsigned long cu_offset; | |
1604 | int offset_size; | |
1605 | int initial_length_size; | |
1606 | ||
1607 | hdrptr = start; | |
1608 | ||
1609 | compunit.cu_length = byte_get (hdrptr, 4); | |
1610 | hdrptr += 4; | |
1611 | ||
1612 | if (compunit.cu_length == 0xffffffff) | |
1613 | { | |
1614 | compunit.cu_length = byte_get (hdrptr, 8); | |
1615 | hdrptr += 8; | |
1616 | offset_size = 8; | |
1617 | initial_length_size = 12; | |
1618 | } | |
1619 | else | |
1620 | { | |
1621 | offset_size = 4; | |
1622 | initial_length_size = 4; | |
1623 | } | |
1624 | ||
1625 | compunit.cu_version = byte_get (hdrptr, 2); | |
1626 | hdrptr += 2; | |
1627 | ||
1628 | cu_offset = start - section_begin; | |
19e6b90e L |
1629 | |
1630 | cu_abbrev_offset_ptr = hdrptr; | |
1631 | compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size); | |
1632 | hdrptr += offset_size; | |
1633 | ||
1634 | compunit.cu_pointer_size = byte_get (hdrptr, 1); | |
1635 | hdrptr += 1; | |
1636 | if ((do_loc || do_debug_loc || do_debug_ranges) | |
1637 | && num_debug_info_entries == 0) | |
1638 | { | |
1639 | debug_information [unit].cu_offset = cu_offset; | |
1640 | debug_information [unit].pointer_size | |
1641 | = compunit.cu_pointer_size; | |
1642 | debug_information [unit].base_address = 0; | |
1643 | debug_information [unit].loc_offsets = NULL; | |
1644 | debug_information [unit].have_frame_base = NULL; | |
1645 | debug_information [unit].max_loc_offsets = 0; | |
1646 | debug_information [unit].num_loc_offsets = 0; | |
1647 | debug_information [unit].range_lists = NULL; | |
1648 | debug_information [unit].max_range_lists= 0; | |
1649 | debug_information [unit].num_range_lists = 0; | |
1650 | } | |
1651 | ||
19e6b90e L |
1652 | if (!do_loc) |
1653 | { | |
1654 | printf (_(" Compilation Unit @ offset 0x%lx:\n"), cu_offset); | |
1655 | printf (_(" Length: %ld\n"), compunit.cu_length); | |
1656 | printf (_(" Version: %d\n"), compunit.cu_version); | |
1657 | printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset); | |
1658 | printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size); | |
1659 | } | |
1660 | ||
460c89ff NS |
1661 | if (cu_offset + compunit.cu_length + initial_length_size |
1662 | > section->size) | |
1663 | { | |
1664 | warn (_("Debug info is corrupted, length is invalid (section is %lu bytes)\n"), | |
1665 | (unsigned long)section->size); | |
1666 | break; | |
1667 | } | |
1668 | tags = hdrptr; | |
1669 | start += compunit.cu_length + initial_length_size; | |
1670 | ||
19e6b90e L |
1671 | if (compunit.cu_version != 2 && compunit.cu_version != 3) |
1672 | { | |
1673 | warn (_("Only version 2 and 3 DWARF debug information is currently supported.\n")); | |
1674 | continue; | |
1675 | } | |
1676 | ||
1677 | free_abbrevs (); | |
1678 | ||
bfe2612a L |
1679 | /* Process the abbrevs used by this compilation unit. DWARF |
1680 | sections under Mach-O have non-zero addresses. */ | |
460c89ff NS |
1681 | if (compunit.cu_abbrev_offset >= debug_displays [abbrev].section.size) |
1682 | warn (_("Debug info is corrupted, abbrev offset is invalid (section is %lu bytes)\n"), | |
1683 | (unsigned long)debug_displays [abbrev].section.size); | |
1684 | else | |
1685 | process_abbrev_section | |
1686 | ((unsigned char *) debug_displays [abbrev].section.start | |
1687 | + compunit.cu_abbrev_offset - debug_displays [abbrev].section.address, | |
1688 | (unsigned char *) debug_displays [abbrev].section.start | |
1689 | + debug_displays [abbrev].section.size); | |
19e6b90e L |
1690 | |
1691 | level = 0; | |
1692 | while (tags < start) | |
1693 | { | |
1694 | unsigned int bytes_read; | |
1695 | unsigned long abbrev_number; | |
1696 | abbrev_entry *entry; | |
1697 | abbrev_attr *attr; | |
1698 | ||
1699 | abbrev_number = read_leb128 (tags, & bytes_read, 0); | |
1700 | tags += bytes_read; | |
1701 | ||
1702 | /* A null DIE marks the end of a list of children. */ | |
1703 | if (abbrev_number == 0) | |
1704 | { | |
1705 | --level; | |
1706 | continue; | |
1707 | } | |
1708 | ||
4b78141a NC |
1709 | if (!do_loc) |
1710 | printf (_(" <%d><%lx>: Abbrev Number: %lu"), | |
1711 | level, | |
1712 | (unsigned long) (tags - section_begin | |
1713 | - bytes_read), | |
1714 | abbrev_number); | |
1715 | ||
19e6b90e L |
1716 | /* Scan through the abbreviation list until we reach the |
1717 | correct entry. */ | |
1718 | for (entry = first_abbrev; | |
1719 | entry && entry->entry != abbrev_number; | |
1720 | entry = entry->next) | |
1721 | continue; | |
1722 | ||
1723 | if (entry == NULL) | |
1724 | { | |
4b78141a NC |
1725 | if (!do_loc) |
1726 | { | |
1727 | printf ("\n"); | |
1728 | fflush (stdout); | |
1729 | } | |
19e6b90e L |
1730 | warn (_("Unable to locate entry %lu in the abbreviation table\n"), |
1731 | abbrev_number); | |
1732 | return 0; | |
1733 | } | |
1734 | ||
1735 | if (!do_loc) | |
4b78141a | 1736 | printf (_(" (%s)\n"), get_TAG_name (entry->tag)); |
19e6b90e L |
1737 | |
1738 | switch (entry->tag) | |
1739 | { | |
1740 | default: | |
1741 | need_base_address = 0; | |
1742 | break; | |
1743 | case DW_TAG_compile_unit: | |
1744 | need_base_address = 1; | |
1745 | break; | |
1746 | case DW_TAG_entry_point: | |
19e6b90e L |
1747 | case DW_TAG_subprogram: |
1748 | need_base_address = 0; | |
1749 | /* Assuming that there is no DW_AT_frame_base. */ | |
1750 | have_frame_base = 0; | |
1751 | break; | |
1752 | } | |
1753 | ||
1754 | for (attr = entry->first_attr; attr; attr = attr->next) | |
4b78141a NC |
1755 | { |
1756 | if (! do_loc) | |
1757 | /* Show the offset from where the tag was extracted. */ | |
750f03b7 | 1758 | printf (" <%2lx>", (unsigned long)(tags - section_begin)); |
4b78141a NC |
1759 | |
1760 | tags = read_and_display_attr (attr->attribute, | |
1761 | attr->form, | |
1762 | tags, cu_offset, | |
1763 | compunit.cu_pointer_size, | |
1764 | offset_size, | |
1765 | compunit.cu_version, | |
1766 | &debug_information [unit], | |
1767 | do_loc); | |
1768 | } | |
19e6b90e L |
1769 | |
1770 | if (entry->children) | |
1771 | ++level; | |
1772 | } | |
1773 | } | |
1774 | ||
1775 | /* Set num_debug_info_entries here so that it can be used to check if | |
1776 | we need to process .debug_loc and .debug_ranges sections. */ | |
1777 | if ((do_loc || do_debug_loc || do_debug_ranges) | |
1778 | && num_debug_info_entries == 0) | |
1779 | num_debug_info_entries = num_units; | |
1780 | ||
1781 | if (!do_loc) | |
1782 | { | |
1783 | printf ("\n"); | |
1784 | } | |
1785 | ||
1786 | return 1; | |
1787 | } | |
1788 | ||
1789 | /* Locate and scan the .debug_info section in the file and record the pointer | |
1790 | sizes and offsets for the compilation units in it. Usually an executable | |
1791 | will have just one pointer size, but this is not guaranteed, and so we try | |
1792 | not to make any assumptions. Returns zero upon failure, or the number of | |
1793 | compilation units upon success. */ | |
1794 | ||
1795 | static unsigned int | |
1796 | load_debug_info (void * file) | |
1797 | { | |
1798 | /* Reset the last pointer size so that we can issue correct error | |
1799 | messages if we are displaying the contents of more than one section. */ | |
1800 | last_pointer_size = 0; | |
1801 | warned_about_missing_comp_units = FALSE; | |
1802 | ||
1803 | /* If we already have the information there is nothing else to do. */ | |
1804 | if (num_debug_info_entries > 0) | |
1805 | return num_debug_info_entries; | |
1806 | ||
1807 | if (load_debug_section (info, file) | |
1808 | && process_debug_info (&debug_displays [info].section, file, 1)) | |
1809 | return num_debug_info_entries; | |
1810 | else | |
1811 | return 0; | |
1812 | } | |
1813 | ||
19e6b90e L |
1814 | static int |
1815 | display_debug_lines (struct dwarf_section *section, void *file) | |
1816 | { | |
1817 | unsigned char *start = section->start; | |
1818 | unsigned char *data = start; | |
1819 | unsigned char *end = start + section->size; | |
19e6b90e L |
1820 | |
1821 | printf (_("\nDump of debug contents of section %s:\n\n"), | |
1822 | section->name); | |
1823 | ||
1824 | load_debug_info (file); | |
1825 | ||
1826 | while (data < end) | |
1827 | { | |
1828 | DWARF2_Internal_LineInfo info; | |
1829 | unsigned char *standard_opcodes; | |
1830 | unsigned char *end_of_sequence; | |
1831 | unsigned char *hdrptr; | |
6523721c | 1832 | unsigned long hdroff; |
19e6b90e L |
1833 | int initial_length_size; |
1834 | int offset_size; | |
1835 | int i; | |
1836 | ||
1837 | hdrptr = data; | |
6523721c | 1838 | hdroff = hdrptr - start; |
19e6b90e L |
1839 | |
1840 | /* Check the length of the block. */ | |
1841 | info.li_length = byte_get (hdrptr, 4); | |
1842 | hdrptr += 4; | |
1843 | ||
1844 | if (info.li_length == 0xffffffff) | |
1845 | { | |
1846 | /* This section is 64-bit DWARF 3. */ | |
1847 | info.li_length = byte_get (hdrptr, 8); | |
1848 | hdrptr += 8; | |
1849 | offset_size = 8; | |
1850 | initial_length_size = 12; | |
1851 | } | |
1852 | else | |
1853 | { | |
1854 | offset_size = 4; | |
1855 | initial_length_size = 4; | |
1856 | } | |
1857 | ||
1858 | if (info.li_length + initial_length_size > section->size) | |
1859 | { | |
1860 | warn | |
1861 | (_("The line info appears to be corrupt - the section is too small\n")); | |
1862 | return 0; | |
1863 | } | |
1864 | ||
1865 | /* Check its version number. */ | |
1866 | info.li_version = byte_get (hdrptr, 2); | |
1867 | hdrptr += 2; | |
1868 | if (info.li_version != 2 && info.li_version != 3) | |
1869 | { | |
1870 | warn (_("Only DWARF version 2 and 3 line info is currently supported.\n")); | |
1871 | return 0; | |
1872 | } | |
1873 | ||
1874 | info.li_prologue_length = byte_get (hdrptr, offset_size); | |
1875 | hdrptr += offset_size; | |
1876 | info.li_min_insn_length = byte_get (hdrptr, 1); | |
1877 | hdrptr++; | |
1878 | info.li_default_is_stmt = byte_get (hdrptr, 1); | |
1879 | hdrptr++; | |
1880 | info.li_line_base = byte_get (hdrptr, 1); | |
1881 | hdrptr++; | |
1882 | info.li_line_range = byte_get (hdrptr, 1); | |
1883 | hdrptr++; | |
1884 | info.li_opcode_base = byte_get (hdrptr, 1); | |
1885 | hdrptr++; | |
1886 | ||
1887 | /* Sign extend the line base field. */ | |
1888 | info.li_line_base <<= 24; | |
1889 | info.li_line_base >>= 24; | |
1890 | ||
6523721c | 1891 | printf (_(" Offset: 0x%lx\n"), hdroff); |
19e6b90e L |
1892 | printf (_(" Length: %ld\n"), info.li_length); |
1893 | printf (_(" DWARF Version: %d\n"), info.li_version); | |
1894 | printf (_(" Prologue Length: %d\n"), info.li_prologue_length); | |
1895 | printf (_(" Minimum Instruction Length: %d\n"), info.li_min_insn_length); | |
1896 | printf (_(" Initial value of 'is_stmt': %d\n"), info.li_default_is_stmt); | |
1897 | printf (_(" Line Base: %d\n"), info.li_line_base); | |
1898 | printf (_(" Line Range: %d\n"), info.li_line_range); | |
1899 | printf (_(" Opcode Base: %d\n"), info.li_opcode_base); | |
19e6b90e L |
1900 | |
1901 | end_of_sequence = data + info.li_length + initial_length_size; | |
1902 | ||
1903 | reset_state_machine (info.li_default_is_stmt); | |
1904 | ||
1905 | /* Display the contents of the Opcodes table. */ | |
1906 | standard_opcodes = hdrptr; | |
1907 | ||
1908 | printf (_("\n Opcodes:\n")); | |
1909 | ||
1910 | for (i = 1; i < info.li_opcode_base; i++) | |
1911 | printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]); | |
1912 | ||
1913 | /* Display the contents of the Directory table. */ | |
1914 | data = standard_opcodes + info.li_opcode_base - 1; | |
1915 | ||
1916 | if (*data == 0) | |
1917 | printf (_("\n The Directory Table is empty.\n")); | |
1918 | else | |
1919 | { | |
1920 | printf (_("\n The Directory Table:\n")); | |
1921 | ||
1922 | while (*data != 0) | |
1923 | { | |
1924 | printf (_(" %s\n"), data); | |
1925 | ||
1926 | data += strlen ((char *) data) + 1; | |
1927 | } | |
1928 | } | |
1929 | ||
1930 | /* Skip the NUL at the end of the table. */ | |
1931 | data++; | |
1932 | ||
1933 | /* Display the contents of the File Name table. */ | |
1934 | if (*data == 0) | |
1935 | printf (_("\n The File Name Table is empty.\n")); | |
1936 | else | |
1937 | { | |
1938 | printf (_("\n The File Name Table:\n")); | |
1939 | printf (_(" Entry\tDir\tTime\tSize\tName\n")); | |
1940 | ||
1941 | while (*data != 0) | |
1942 | { | |
1943 | unsigned char *name; | |
1944 | unsigned int bytes_read; | |
1945 | ||
1946 | printf (_(" %d\t"), ++state_machine_regs.last_file_entry); | |
1947 | name = data; | |
1948 | ||
1949 | data += strlen ((char *) data) + 1; | |
1950 | ||
1951 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
1952 | data += bytes_read; | |
1953 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
1954 | data += bytes_read; | |
1955 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
1956 | data += bytes_read; | |
1957 | printf (_("%s\n"), name); | |
1958 | } | |
1959 | } | |
1960 | ||
1961 | /* Skip the NUL at the end of the table. */ | |
1962 | data++; | |
1963 | ||
1964 | /* Now display the statements. */ | |
1965 | printf (_("\n Line Number Statements:\n")); | |
1966 | ||
1967 | while (data < end_of_sequence) | |
1968 | { | |
1969 | unsigned char op_code; | |
1970 | int adv; | |
1971 | unsigned long int uladv; | |
1972 | unsigned int bytes_read; | |
1973 | ||
1974 | op_code = *data++; | |
1975 | ||
1976 | if (op_code >= info.li_opcode_base) | |
1977 | { | |
1978 | op_code -= info.li_opcode_base; | |
1979 | uladv = (op_code / info.li_line_range) * info.li_min_insn_length; | |
1980 | state_machine_regs.address += uladv; | |
1981 | printf (_(" Special opcode %d: advance Address by %lu to 0x%lx"), | |
1982 | op_code, uladv, state_machine_regs.address); | |
1983 | adv = (op_code % info.li_line_range) + info.li_line_base; | |
1984 | state_machine_regs.line += adv; | |
1985 | printf (_(" and Line by %d to %d\n"), | |
1986 | adv, state_machine_regs.line); | |
1987 | } | |
1988 | else switch (op_code) | |
1989 | { | |
1990 | case DW_LNS_extended_op: | |
1617e571 | 1991 | data += process_extended_line_op (data, info.li_default_is_stmt); |
19e6b90e L |
1992 | break; |
1993 | ||
1994 | case DW_LNS_copy: | |
1995 | printf (_(" Copy\n")); | |
1996 | break; | |
1997 | ||
1998 | case DW_LNS_advance_pc: | |
1999 | uladv = read_leb128 (data, & bytes_read, 0); | |
2000 | uladv *= info.li_min_insn_length; | |
2001 | data += bytes_read; | |
2002 | state_machine_regs.address += uladv; | |
2003 | printf (_(" Advance PC by %lu to 0x%lx\n"), uladv, | |
2004 | state_machine_regs.address); | |
2005 | break; | |
2006 | ||
2007 | case DW_LNS_advance_line: | |
2008 | adv = read_leb128 (data, & bytes_read, 1); | |
2009 | data += bytes_read; | |
2010 | state_machine_regs.line += adv; | |
2011 | printf (_(" Advance Line by %d to %d\n"), adv, | |
2012 | state_machine_regs.line); | |
2013 | break; | |
2014 | ||
2015 | case DW_LNS_set_file: | |
2016 | adv = read_leb128 (data, & bytes_read, 0); | |
2017 | data += bytes_read; | |
2018 | printf (_(" Set File Name to entry %d in the File Name Table\n"), | |
2019 | adv); | |
2020 | state_machine_regs.file = adv; | |
2021 | break; | |
2022 | ||
2023 | case DW_LNS_set_column: | |
2024 | uladv = read_leb128 (data, & bytes_read, 0); | |
2025 | data += bytes_read; | |
2026 | printf (_(" Set column to %lu\n"), uladv); | |
2027 | state_machine_regs.column = uladv; | |
2028 | break; | |
2029 | ||
2030 | case DW_LNS_negate_stmt: | |
2031 | adv = state_machine_regs.is_stmt; | |
2032 | adv = ! adv; | |
2033 | printf (_(" Set is_stmt to %d\n"), adv); | |
2034 | state_machine_regs.is_stmt = adv; | |
2035 | break; | |
2036 | ||
2037 | case DW_LNS_set_basic_block: | |
2038 | printf (_(" Set basic block\n")); | |
2039 | state_machine_regs.basic_block = 1; | |
2040 | break; | |
2041 | ||
2042 | case DW_LNS_const_add_pc: | |
2043 | uladv = (((255 - info.li_opcode_base) / info.li_line_range) | |
2044 | * info.li_min_insn_length); | |
2045 | state_machine_regs.address += uladv; | |
2046 | printf (_(" Advance PC by constant %lu to 0x%lx\n"), uladv, | |
2047 | state_machine_regs.address); | |
2048 | break; | |
2049 | ||
2050 | case DW_LNS_fixed_advance_pc: | |
2051 | uladv = byte_get (data, 2); | |
2052 | data += 2; | |
2053 | state_machine_regs.address += uladv; | |
2054 | printf (_(" Advance PC by fixed size amount %lu to 0x%lx\n"), | |
2055 | uladv, state_machine_regs.address); | |
2056 | break; | |
2057 | ||
2058 | case DW_LNS_set_prologue_end: | |
2059 | printf (_(" Set prologue_end to true\n")); | |
2060 | break; | |
2061 | ||
2062 | case DW_LNS_set_epilogue_begin: | |
2063 | printf (_(" Set epilogue_begin to true\n")); | |
2064 | break; | |
2065 | ||
2066 | case DW_LNS_set_isa: | |
2067 | uladv = read_leb128 (data, & bytes_read, 0); | |
2068 | data += bytes_read; | |
2069 | printf (_(" Set ISA to %lu\n"), uladv); | |
2070 | break; | |
2071 | ||
2072 | default: | |
2073 | printf (_(" Unknown opcode %d with operands: "), op_code); | |
2074 | ||
2075 | for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) | |
2076 | { | |
2077 | printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0), | |
2078 | i == 1 ? "" : ", "); | |
2079 | data += bytes_read; | |
2080 | } | |
2081 | putchar ('\n'); | |
2082 | break; | |
2083 | } | |
2084 | } | |
2085 | putchar ('\n'); | |
2086 | } | |
2087 | ||
2088 | return 1; | |
2089 | } | |
2090 | ||
2091 | static int | |
2092 | display_debug_pubnames (struct dwarf_section *section, | |
2093 | void *file ATTRIBUTE_UNUSED) | |
2094 | { | |
2095 | DWARF2_Internal_PubNames pubnames; | |
2096 | unsigned char *start = section->start; | |
2097 | unsigned char *end = start + section->size; | |
2098 | ||
2099 | printf (_("Contents of the %s section:\n\n"), section->name); | |
2100 | ||
2101 | while (start < end) | |
2102 | { | |
2103 | unsigned char *data; | |
2104 | unsigned long offset; | |
2105 | int offset_size, initial_length_size; | |
2106 | ||
2107 | data = start; | |
2108 | ||
2109 | pubnames.pn_length = byte_get (data, 4); | |
2110 | data += 4; | |
2111 | if (pubnames.pn_length == 0xffffffff) | |
2112 | { | |
2113 | pubnames.pn_length = byte_get (data, 8); | |
2114 | data += 8; | |
2115 | offset_size = 8; | |
2116 | initial_length_size = 12; | |
2117 | } | |
2118 | else | |
2119 | { | |
2120 | offset_size = 4; | |
2121 | initial_length_size = 4; | |
2122 | } | |
2123 | ||
2124 | pubnames.pn_version = byte_get (data, 2); | |
2125 | data += 2; | |
2126 | pubnames.pn_offset = byte_get (data, offset_size); | |
2127 | data += offset_size; | |
2128 | pubnames.pn_size = byte_get (data, offset_size); | |
2129 | data += offset_size; | |
2130 | ||
2131 | start += pubnames.pn_length + initial_length_size; | |
2132 | ||
2133 | if (pubnames.pn_version != 2 && pubnames.pn_version != 3) | |
2134 | { | |
2135 | static int warned = 0; | |
2136 | ||
2137 | if (! warned) | |
2138 | { | |
2139 | warn (_("Only DWARF 2 and 3 pubnames are currently supported\n")); | |
2140 | warned = 1; | |
2141 | } | |
2142 | ||
2143 | continue; | |
2144 | } | |
2145 | ||
2146 | printf (_(" Length: %ld\n"), | |
2147 | pubnames.pn_length); | |
2148 | printf (_(" Version: %d\n"), | |
2149 | pubnames.pn_version); | |
2150 | printf (_(" Offset into .debug_info section: %ld\n"), | |
2151 | pubnames.pn_offset); | |
2152 | printf (_(" Size of area in .debug_info section: %ld\n"), | |
2153 | pubnames.pn_size); | |
2154 | ||
2155 | printf (_("\n Offset\tName\n")); | |
2156 | ||
2157 | do | |
2158 | { | |
2159 | offset = byte_get (data, offset_size); | |
2160 | ||
2161 | if (offset != 0) | |
2162 | { | |
2163 | data += offset_size; | |
2164 | printf (" %-6ld\t\t%s\n", offset, data); | |
2165 | data += strlen ((char *) data) + 1; | |
2166 | } | |
2167 | } | |
2168 | while (offset != 0); | |
2169 | } | |
2170 | ||
2171 | printf ("\n"); | |
2172 | return 1; | |
2173 | } | |
2174 | ||
2175 | static int | |
2176 | display_debug_macinfo (struct dwarf_section *section, | |
2177 | void *file ATTRIBUTE_UNUSED) | |
2178 | { | |
2179 | unsigned char *start = section->start; | |
2180 | unsigned char *end = start + section->size; | |
2181 | unsigned char *curr = start; | |
2182 | unsigned int bytes_read; | |
2183 | enum dwarf_macinfo_record_type op; | |
2184 | ||
2185 | printf (_("Contents of the %s section:\n\n"), section->name); | |
2186 | ||
2187 | while (curr < end) | |
2188 | { | |
2189 | unsigned int lineno; | |
2190 | const char *string; | |
2191 | ||
2192 | op = *curr; | |
2193 | curr++; | |
2194 | ||
2195 | switch (op) | |
2196 | { | |
2197 | case DW_MACINFO_start_file: | |
2198 | { | |
2199 | unsigned int filenum; | |
2200 | ||
2201 | lineno = read_leb128 (curr, & bytes_read, 0); | |
2202 | curr += bytes_read; | |
2203 | filenum = read_leb128 (curr, & bytes_read, 0); | |
2204 | curr += bytes_read; | |
2205 | ||
2206 | printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"), | |
2207 | lineno, filenum); | |
2208 | } | |
2209 | break; | |
2210 | ||
2211 | case DW_MACINFO_end_file: | |
2212 | printf (_(" DW_MACINFO_end_file\n")); | |
2213 | break; | |
2214 | ||
2215 | case DW_MACINFO_define: | |
2216 | lineno = read_leb128 (curr, & bytes_read, 0); | |
2217 | curr += bytes_read; | |
2218 | string = (char *) curr; | |
2219 | curr += strlen (string) + 1; | |
2220 | printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"), | |
2221 | lineno, string); | |
2222 | break; | |
2223 | ||
2224 | case DW_MACINFO_undef: | |
2225 | lineno = read_leb128 (curr, & bytes_read, 0); | |
2226 | curr += bytes_read; | |
2227 | string = (char *) curr; | |
2228 | curr += strlen (string) + 1; | |
2229 | printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"), | |
2230 | lineno, string); | |
2231 | break; | |
2232 | ||
2233 | case DW_MACINFO_vendor_ext: | |
2234 | { | |
2235 | unsigned int constant; | |
2236 | ||
2237 | constant = read_leb128 (curr, & bytes_read, 0); | |
2238 | curr += bytes_read; | |
2239 | string = (char *) curr; | |
2240 | curr += strlen (string) + 1; | |
2241 | printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"), | |
2242 | constant, string); | |
2243 | } | |
2244 | break; | |
2245 | } | |
2246 | } | |
2247 | ||
2248 | return 1; | |
2249 | } | |
2250 | ||
2251 | static int | |
2252 | display_debug_abbrev (struct dwarf_section *section, | |
2253 | void *file ATTRIBUTE_UNUSED) | |
2254 | { | |
2255 | abbrev_entry *entry; | |
2256 | unsigned char *start = section->start; | |
2257 | unsigned char *end = start + section->size; | |
2258 | ||
2259 | printf (_("Contents of the %s section:\n\n"), section->name); | |
2260 | ||
2261 | do | |
2262 | { | |
2263 | free_abbrevs (); | |
2264 | ||
2265 | start = process_abbrev_section (start, end); | |
2266 | ||
2267 | if (first_abbrev == NULL) | |
2268 | continue; | |
2269 | ||
2270 | printf (_(" Number TAG\n")); | |
2271 | ||
2272 | for (entry = first_abbrev; entry; entry = entry->next) | |
2273 | { | |
2274 | abbrev_attr *attr; | |
2275 | ||
2276 | printf (_(" %ld %s [%s]\n"), | |
2277 | entry->entry, | |
2278 | get_TAG_name (entry->tag), | |
2279 | entry->children ? _("has children") : _("no children")); | |
2280 | ||
2281 | for (attr = entry->first_attr; attr; attr = attr->next) | |
2282 | printf (_(" %-18s %s\n"), | |
2283 | get_AT_name (attr->attribute), | |
2284 | get_FORM_name (attr->form)); | |
2285 | } | |
2286 | } | |
2287 | while (start); | |
2288 | ||
2289 | printf ("\n"); | |
2290 | ||
2291 | return 1; | |
2292 | } | |
2293 | ||
2294 | static int | |
2295 | display_debug_loc (struct dwarf_section *section, void *file) | |
2296 | { | |
2297 | unsigned char *start = section->start; | |
2298 | unsigned char *section_end; | |
2299 | unsigned long bytes; | |
2300 | unsigned char *section_begin = start; | |
2301 | unsigned int num_loc_list = 0; | |
2302 | unsigned long last_offset = 0; | |
2303 | unsigned int first = 0; | |
2304 | unsigned int i; | |
2305 | unsigned int j; | |
2306 | int seen_first_offset = 0; | |
2307 | int use_debug_info = 1; | |
2308 | unsigned char *next; | |
2309 | ||
2310 | bytes = section->size; | |
2311 | section_end = start + bytes; | |
2312 | ||
2313 | if (bytes == 0) | |
2314 | { | |
2315 | printf (_("\nThe %s section is empty.\n"), section->name); | |
2316 | return 0; | |
2317 | } | |
2318 | ||
2319 | load_debug_info (file); | |
2320 | ||
2321 | /* Check the order of location list in .debug_info section. If | |
2322 | offsets of location lists are in the ascending order, we can | |
2323 | use `debug_information' directly. */ | |
2324 | for (i = 0; i < num_debug_info_entries; i++) | |
2325 | { | |
2326 | unsigned int num; | |
2327 | ||
2328 | num = debug_information [i].num_loc_offsets; | |
2329 | num_loc_list += num; | |
2330 | ||
2331 | /* Check if we can use `debug_information' directly. */ | |
2332 | if (use_debug_info && num != 0) | |
2333 | { | |
2334 | if (!seen_first_offset) | |
2335 | { | |
2336 | /* This is the first location list. */ | |
2337 | last_offset = debug_information [i].loc_offsets [0]; | |
2338 | first = i; | |
2339 | seen_first_offset = 1; | |
2340 | j = 1; | |
2341 | } | |
2342 | else | |
2343 | j = 0; | |
2344 | ||
2345 | for (; j < num; j++) | |
2346 | { | |
2347 | if (last_offset > | |
2348 | debug_information [i].loc_offsets [j]) | |
2349 | { | |
2350 | use_debug_info = 0; | |
2351 | break; | |
2352 | } | |
2353 | last_offset = debug_information [i].loc_offsets [j]; | |
2354 | } | |
2355 | } | |
2356 | } | |
2357 | ||
2358 | if (!use_debug_info) | |
2359 | /* FIXME: Should we handle this case? */ | |
2360 | error (_("Location lists in .debug_info section aren't in ascending order!\n")); | |
2361 | ||
2362 | if (!seen_first_offset) | |
2363 | error (_("No location lists in .debug_info section!\n")); | |
2364 | ||
bfe2612a | 2365 | /* DWARF sections under Mach-O have non-zero addresses. */ |
d4bfc77b AS |
2366 | if (debug_information [first].num_loc_offsets > 0 |
2367 | && debug_information [first].loc_offsets [0] != section->address) | |
19e6b90e L |
2368 | warn (_("Location lists in %s section start at 0x%lx\n"), |
2369 | section->name, debug_information [first].loc_offsets [0]); | |
2370 | ||
2371 | printf (_("Contents of the %s section:\n\n"), section->name); | |
2372 | printf (_(" Offset Begin End Expression\n")); | |
2373 | ||
2374 | seen_first_offset = 0; | |
2375 | for (i = first; i < num_debug_info_entries; i++) | |
2376 | { | |
2377 | unsigned long begin; | |
2378 | unsigned long end; | |
2379 | unsigned short length; | |
2380 | unsigned long offset; | |
2381 | unsigned int pointer_size; | |
2382 | unsigned long cu_offset; | |
2383 | unsigned long base_address; | |
2384 | int need_frame_base; | |
2385 | int has_frame_base; | |
2386 | ||
2387 | pointer_size = debug_information [i].pointer_size; | |
2388 | cu_offset = debug_information [i].cu_offset; | |
2389 | ||
2390 | for (j = 0; j < debug_information [i].num_loc_offsets; j++) | |
2391 | { | |
2392 | has_frame_base = debug_information [i].have_frame_base [j]; | |
bfe2612a L |
2393 | /* DWARF sections under Mach-O have non-zero addresses. */ |
2394 | offset = debug_information [i].loc_offsets [j] - section->address; | |
19e6b90e L |
2395 | next = section_begin + offset; |
2396 | base_address = debug_information [i].base_address; | |
2397 | ||
2398 | if (!seen_first_offset) | |
2399 | seen_first_offset = 1; | |
2400 | else | |
2401 | { | |
2402 | if (start < next) | |
2403 | warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"), | |
2404 | (long)(start - section_begin), (long)(next - section_begin)); | |
2405 | else if (start > next) | |
2406 | warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"), | |
2407 | (long)(start - section_begin), (long)(next - section_begin)); | |
2408 | } | |
2409 | start = next; | |
2410 | ||
2411 | if (offset >= bytes) | |
2412 | { | |
2413 | warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"), | |
2414 | offset); | |
2415 | continue; | |
2416 | } | |
2417 | ||
2418 | while (1) | |
2419 | { | |
2420 | if (start + 2 * pointer_size > section_end) | |
2421 | { | |
2422 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), | |
2423 | offset); | |
2424 | break; | |
2425 | } | |
2426 | ||
2427 | begin = byte_get (start, pointer_size); | |
2428 | start += pointer_size; | |
2429 | end = byte_get (start, pointer_size); | |
2430 | start += pointer_size; | |
2431 | ||
2432 | if (begin == 0 && end == 0) | |
2433 | { | |
2434 | printf (_(" %8.8lx <End of list>\n"), offset); | |
2435 | break; | |
2436 | } | |
2437 | ||
2438 | /* Check base address specifiers. */ | |
2439 | if (begin == -1UL && end != -1UL) | |
2440 | { | |
2441 | base_address = end; | |
2442 | printf (_(" %8.8lx %8.8lx %8.8lx (base address)\n"), | |
2443 | offset, begin, end); | |
2444 | continue; | |
2445 | } | |
2446 | ||
2447 | if (start + 2 > section_end) | |
2448 | { | |
2449 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), | |
2450 | offset); | |
2451 | break; | |
2452 | } | |
2453 | ||
2454 | length = byte_get (start, 2); | |
2455 | start += 2; | |
2456 | ||
2457 | if (start + length > section_end) | |
2458 | { | |
2459 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), | |
2460 | offset); | |
2461 | break; | |
2462 | } | |
2463 | ||
2464 | printf (" %8.8lx %8.8lx %8.8lx (", | |
2465 | offset, begin + base_address, end + base_address); | |
2466 | need_frame_base = decode_location_expression (start, | |
2467 | pointer_size, | |
2468 | length, | |
2469 | cu_offset); | |
2470 | putchar (')'); | |
2471 | ||
2472 | if (need_frame_base && !has_frame_base) | |
2473 | printf (_(" [without DW_AT_frame_base]")); | |
2474 | ||
2475 | if (begin == end) | |
2476 | fputs (_(" (start == end)"), stdout); | |
2477 | else if (begin > end) | |
2478 | fputs (_(" (start > end)"), stdout); | |
2479 | ||
2480 | putchar ('\n'); | |
2481 | ||
2482 | start += length; | |
2483 | } | |
2484 | } | |
2485 | } | |
2486 | return 1; | |
2487 | } | |
2488 | ||
2489 | static int | |
2490 | display_debug_str (struct dwarf_section *section, | |
2491 | void *file ATTRIBUTE_UNUSED) | |
2492 | { | |
2493 | unsigned char *start = section->start; | |
2494 | unsigned long bytes = section->size; | |
2495 | dwarf_vma addr = section->address; | |
2496 | ||
2497 | if (bytes == 0) | |
2498 | { | |
2499 | printf (_("\nThe %s section is empty.\n"), section->name); | |
2500 | return 0; | |
2501 | } | |
2502 | ||
2503 | printf (_("Contents of the %s section:\n\n"), section->name); | |
2504 | ||
2505 | while (bytes) | |
2506 | { | |
2507 | int j; | |
2508 | int k; | |
2509 | int lbytes; | |
2510 | ||
2511 | lbytes = (bytes > 16 ? 16 : bytes); | |
2512 | ||
2513 | printf (" 0x%8.8lx ", (unsigned long) addr); | |
2514 | ||
2515 | for (j = 0; j < 16; j++) | |
2516 | { | |
2517 | if (j < lbytes) | |
2518 | printf ("%2.2x", start[j]); | |
2519 | else | |
2520 | printf (" "); | |
2521 | ||
2522 | if ((j & 3) == 3) | |
2523 | printf (" "); | |
2524 | } | |
2525 | ||
2526 | for (j = 0; j < lbytes; j++) | |
2527 | { | |
2528 | k = start[j]; | |
2529 | if (k >= ' ' && k < 0x80) | |
2530 | printf ("%c", k); | |
2531 | else | |
2532 | printf ("."); | |
2533 | } | |
2534 | ||
2535 | putchar ('\n'); | |
2536 | ||
2537 | start += lbytes; | |
2538 | addr += lbytes; | |
2539 | bytes -= lbytes; | |
2540 | } | |
2541 | ||
2542 | putchar ('\n'); | |
2543 | ||
2544 | return 1; | |
2545 | } | |
2546 | ||
19e6b90e L |
2547 | static int |
2548 | display_debug_info (struct dwarf_section *section, void *file) | |
2549 | { | |
2550 | return process_debug_info (section, file, 0); | |
2551 | } | |
2552 | ||
2553 | ||
2554 | static int | |
2555 | display_debug_aranges (struct dwarf_section *section, | |
2556 | void *file ATTRIBUTE_UNUSED) | |
2557 | { | |
2558 | unsigned char *start = section->start; | |
2559 | unsigned char *end = start + section->size; | |
2560 | ||
2561 | printf (_("The section %s contains:\n\n"), section->name); | |
2562 | ||
2563 | while (start < end) | |
2564 | { | |
2565 | unsigned char *hdrptr; | |
2566 | DWARF2_Internal_ARange arange; | |
2567 | unsigned char *ranges; | |
2568 | unsigned long length; | |
2569 | unsigned long address; | |
53b8873b | 2570 | unsigned char address_size; |
19e6b90e L |
2571 | int excess; |
2572 | int offset_size; | |
2573 | int initial_length_size; | |
2574 | ||
2575 | hdrptr = start; | |
2576 | ||
2577 | arange.ar_length = byte_get (hdrptr, 4); | |
2578 | hdrptr += 4; | |
2579 | ||
2580 | if (arange.ar_length == 0xffffffff) | |
2581 | { | |
2582 | arange.ar_length = byte_get (hdrptr, 8); | |
2583 | hdrptr += 8; | |
2584 | offset_size = 8; | |
2585 | initial_length_size = 12; | |
2586 | } | |
2587 | else | |
2588 | { | |
2589 | offset_size = 4; | |
2590 | initial_length_size = 4; | |
2591 | } | |
2592 | ||
2593 | arange.ar_version = byte_get (hdrptr, 2); | |
2594 | hdrptr += 2; | |
2595 | ||
2596 | arange.ar_info_offset = byte_get (hdrptr, offset_size); | |
2597 | hdrptr += offset_size; | |
2598 | ||
2599 | arange.ar_pointer_size = byte_get (hdrptr, 1); | |
2600 | hdrptr += 1; | |
2601 | ||
2602 | arange.ar_segment_size = byte_get (hdrptr, 1); | |
2603 | hdrptr += 1; | |
2604 | ||
2605 | if (arange.ar_version != 2 && arange.ar_version != 3) | |
2606 | { | |
2607 | warn (_("Only DWARF 2 and 3 aranges are currently supported.\n")); | |
2608 | break; | |
2609 | } | |
2610 | ||
2611 | printf (_(" Length: %ld\n"), arange.ar_length); | |
2612 | printf (_(" Version: %d\n"), arange.ar_version); | |
2613 | printf (_(" Offset into .debug_info: %lx\n"), arange.ar_info_offset); | |
2614 | printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size); | |
2615 | printf (_(" Segment Size: %d\n"), arange.ar_segment_size); | |
2616 | ||
53b8873b NC |
2617 | address_size = arange.ar_pointer_size + arange.ar_segment_size; |
2618 | ||
2619 | /* The DWARF spec does not require that the address size be a power | |
2620 | of two, but we do. This will have to change if we ever encounter | |
2621 | an uneven architecture. */ | |
2622 | if ((address_size & (address_size - 1)) != 0) | |
2623 | { | |
2624 | warn (_("Pointer size + Segment size is not a power of two.\n")); | |
2625 | break; | |
2626 | } | |
2627 | ||
209c9a13 NC |
2628 | if (address_size > 4) |
2629 | printf (_("\n Address Length\n")); | |
2630 | else | |
2631 | printf (_("\n Address Length\n")); | |
19e6b90e L |
2632 | |
2633 | ranges = hdrptr; | |
2634 | ||
53b8873b NC |
2635 | /* Must pad to an alignment boundary that is twice the address size. */ |
2636 | excess = (hdrptr - start) % (2 * address_size); | |
19e6b90e | 2637 | if (excess) |
53b8873b | 2638 | ranges += (2 * address_size) - excess; |
19e6b90e | 2639 | |
1617e571 AM |
2640 | start += arange.ar_length + initial_length_size; |
2641 | ||
53b8873b | 2642 | while (ranges + 2 * address_size <= start) |
19e6b90e | 2643 | { |
53b8873b | 2644 | address = byte_get (ranges, address_size); |
19e6b90e | 2645 | |
53b8873b | 2646 | ranges += address_size; |
19e6b90e | 2647 | |
53b8873b | 2648 | length = byte_get (ranges, address_size); |
19e6b90e | 2649 | |
53b8873b | 2650 | ranges += address_size; |
19e6b90e | 2651 | |
209c9a13 NC |
2652 | if (address_size > 4) |
2653 | printf (" 0x%16.16lx 0x%lx\n", address, length); | |
2654 | else | |
2655 | printf (" 0x%8.8lx 0x%lx\n", address, length); | |
19e6b90e | 2656 | } |
19e6b90e L |
2657 | } |
2658 | ||
2659 | printf ("\n"); | |
2660 | ||
2661 | return 1; | |
2662 | } | |
2663 | ||
2664 | static int | |
2665 | display_debug_ranges (struct dwarf_section *section, | |
2666 | void *file ATTRIBUTE_UNUSED) | |
2667 | { | |
2668 | unsigned char *start = section->start; | |
2669 | unsigned char *section_end; | |
2670 | unsigned long bytes; | |
2671 | unsigned char *section_begin = start; | |
2672 | unsigned int num_range_list = 0; | |
2673 | unsigned long last_offset = 0; | |
2674 | unsigned int first = 0; | |
2675 | unsigned int i; | |
2676 | unsigned int j; | |
2677 | int seen_first_offset = 0; | |
2678 | int use_debug_info = 1; | |
2679 | unsigned char *next; | |
2680 | ||
2681 | bytes = section->size; | |
2682 | section_end = start + bytes; | |
2683 | ||
2684 | if (bytes == 0) | |
2685 | { | |
2686 | printf (_("\nThe %s section is empty.\n"), section->name); | |
2687 | return 0; | |
2688 | } | |
2689 | ||
2690 | load_debug_info (file); | |
2691 | ||
2692 | /* Check the order of range list in .debug_info section. If | |
2693 | offsets of range lists are in the ascending order, we can | |
2694 | use `debug_information' directly. */ | |
2695 | for (i = 0; i < num_debug_info_entries; i++) | |
2696 | { | |
2697 | unsigned int num; | |
2698 | ||
2699 | num = debug_information [i].num_range_lists; | |
2700 | num_range_list += num; | |
2701 | ||
2702 | /* Check if we can use `debug_information' directly. */ | |
2703 | if (use_debug_info && num != 0) | |
2704 | { | |
2705 | if (!seen_first_offset) | |
2706 | { | |
2707 | /* This is the first range list. */ | |
2708 | last_offset = debug_information [i].range_lists [0]; | |
2709 | first = i; | |
2710 | seen_first_offset = 1; | |
2711 | j = 1; | |
2712 | } | |
2713 | else | |
2714 | j = 0; | |
2715 | ||
2716 | for (; j < num; j++) | |
2717 | { | |
2718 | if (last_offset > | |
2719 | debug_information [i].range_lists [j]) | |
2720 | { | |
2721 | use_debug_info = 0; | |
2722 | break; | |
2723 | } | |
2724 | last_offset = debug_information [i].range_lists [j]; | |
2725 | } | |
2726 | } | |
2727 | } | |
2728 | ||
2729 | if (!use_debug_info) | |
2730 | /* FIXME: Should we handle this case? */ | |
2731 | error (_("Range lists in .debug_info section aren't in ascending order!\n")); | |
2732 | ||
2733 | if (!seen_first_offset) | |
2734 | error (_("No range lists in .debug_info section!\n")); | |
2735 | ||
bfe2612a | 2736 | /* DWARF sections under Mach-O have non-zero addresses. */ |
d4bfc77b AS |
2737 | if (debug_information [first].num_range_lists > 0 |
2738 | && debug_information [first].range_lists [0] != section->address) | |
19e6b90e L |
2739 | warn (_("Range lists in %s section start at 0x%lx\n"), |
2740 | section->name, debug_information [first].range_lists [0]); | |
2741 | ||
2742 | printf (_("Contents of the %s section:\n\n"), section->name); | |
2743 | printf (_(" Offset Begin End\n")); | |
2744 | ||
2745 | seen_first_offset = 0; | |
2746 | for (i = first; i < num_debug_info_entries; i++) | |
2747 | { | |
2748 | unsigned long begin; | |
2749 | unsigned long end; | |
2750 | unsigned long offset; | |
2751 | unsigned int pointer_size; | |
2752 | unsigned long base_address; | |
2753 | ||
2754 | pointer_size = debug_information [i].pointer_size; | |
2755 | ||
2756 | for (j = 0; j < debug_information [i].num_range_lists; j++) | |
2757 | { | |
bfe2612a L |
2758 | /* DWARF sections under Mach-O have non-zero addresses. */ |
2759 | offset = debug_information [i].range_lists [j] - section->address; | |
19e6b90e L |
2760 | next = section_begin + offset; |
2761 | base_address = debug_information [i].base_address; | |
2762 | ||
2763 | if (!seen_first_offset) | |
2764 | seen_first_offset = 1; | |
2765 | else | |
2766 | { | |
2767 | if (start < next) | |
2768 | warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"), | |
2769 | (long)(start - section_begin), | |
2770 | (long)(next - section_begin), section->name); | |
2771 | else if (start > next) | |
2772 | warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"), | |
2773 | (long)(start - section_begin), | |
2774 | (long)(next - section_begin), section->name); | |
2775 | } | |
2776 | start = next; | |
2777 | ||
2778 | while (1) | |
2779 | { | |
2780 | begin = byte_get (start, pointer_size); | |
2781 | start += pointer_size; | |
2782 | end = byte_get (start, pointer_size); | |
2783 | start += pointer_size; | |
2784 | ||
2785 | if (begin == 0 && end == 0) | |
2786 | { | |
2787 | printf (_(" %8.8lx <End of list>\n"), offset); | |
2788 | break; | |
2789 | } | |
2790 | ||
2791 | /* Check base address specifiers. */ | |
2792 | if (begin == -1UL && end != -1UL) | |
2793 | { | |
2794 | base_address = end; | |
2795 | printf (" %8.8lx %8.8lx %8.8lx (base address)\n", | |
2796 | offset, begin, end); | |
2797 | continue; | |
2798 | } | |
2799 | ||
2800 | printf (" %8.8lx %8.8lx %8.8lx", | |
2801 | offset, begin + base_address, end + base_address); | |
2802 | ||
2803 | if (begin == end) | |
2804 | fputs (_(" (start == end)"), stdout); | |
2805 | else if (begin > end) | |
2806 | fputs (_(" (start > end)"), stdout); | |
2807 | ||
2808 | putchar ('\n'); | |
2809 | } | |
2810 | } | |
2811 | } | |
2812 | putchar ('\n'); | |
2813 | return 1; | |
2814 | } | |
2815 | ||
2816 | typedef struct Frame_Chunk | |
2817 | { | |
2818 | struct Frame_Chunk *next; | |
2819 | unsigned char *chunk_start; | |
2820 | int ncols; | |
2821 | /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */ | |
2822 | short int *col_type; | |
2823 | int *col_offset; | |
2824 | char *augmentation; | |
2825 | unsigned int code_factor; | |
2826 | int data_factor; | |
2827 | unsigned long pc_begin; | |
2828 | unsigned long pc_range; | |
2829 | int cfa_reg; | |
2830 | int cfa_offset; | |
2831 | int ra; | |
2832 | unsigned char fde_encoding; | |
2833 | unsigned char cfa_exp; | |
2834 | } | |
2835 | Frame_Chunk; | |
2836 | ||
2837 | /* A marker for a col_type that means this column was never referenced | |
2838 | in the frame info. */ | |
2839 | #define DW_CFA_unreferenced (-1) | |
2840 | ||
2841 | static void | |
2842 | frame_need_space (Frame_Chunk *fc, int reg) | |
2843 | { | |
2844 | int prev = fc->ncols; | |
2845 | ||
2846 | if (reg < fc->ncols) | |
2847 | return; | |
2848 | ||
2849 | fc->ncols = reg + 1; | |
2850 | fc->col_type = xcrealloc (fc->col_type, fc->ncols, sizeof (short int)); | |
2851 | fc->col_offset = xcrealloc (fc->col_offset, fc->ncols, sizeof (int)); | |
2852 | ||
2853 | while (prev < fc->ncols) | |
2854 | { | |
2855 | fc->col_type[prev] = DW_CFA_unreferenced; | |
2856 | fc->col_offset[prev] = 0; | |
2857 | prev++; | |
2858 | } | |
2859 | } | |
2860 | ||
2861 | static void | |
2862 | frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs) | |
2863 | { | |
2864 | int r; | |
2865 | char tmp[100]; | |
2866 | ||
2867 | if (*max_regs < fc->ncols) | |
2868 | *max_regs = fc->ncols; | |
2869 | ||
2870 | if (*need_col_headers) | |
2871 | { | |
2872 | *need_col_headers = 0; | |
2873 | ||
2874 | printf (" LOC CFA "); | |
2875 | ||
2876 | for (r = 0; r < *max_regs; r++) | |
2877 | if (fc->col_type[r] != DW_CFA_unreferenced) | |
2878 | { | |
2879 | if (r == fc->ra) | |
2880 | printf ("ra "); | |
2881 | else | |
2882 | printf ("r%-4d", r); | |
2883 | } | |
2884 | ||
2885 | printf ("\n"); | |
2886 | } | |
2887 | ||
2888 | printf ("%08lx ", fc->pc_begin); | |
2889 | if (fc->cfa_exp) | |
2890 | strcpy (tmp, "exp"); | |
2891 | else | |
2892 | sprintf (tmp, "r%d%+d", fc->cfa_reg, fc->cfa_offset); | |
2893 | printf ("%-8s ", tmp); | |
2894 | ||
2895 | for (r = 0; r < fc->ncols; r++) | |
2896 | { | |
2897 | if (fc->col_type[r] != DW_CFA_unreferenced) | |
2898 | { | |
2899 | switch (fc->col_type[r]) | |
2900 | { | |
2901 | case DW_CFA_undefined: | |
2902 | strcpy (tmp, "u"); | |
2903 | break; | |
2904 | case DW_CFA_same_value: | |
2905 | strcpy (tmp, "s"); | |
2906 | break; | |
2907 | case DW_CFA_offset: | |
2908 | sprintf (tmp, "c%+d", fc->col_offset[r]); | |
2909 | break; | |
12eae2d3 JJ |
2910 | case DW_CFA_val_offset: |
2911 | sprintf (tmp, "v%+d", fc->col_offset[r]); | |
2912 | break; | |
19e6b90e L |
2913 | case DW_CFA_register: |
2914 | sprintf (tmp, "r%d", fc->col_offset[r]); | |
2915 | break; | |
2916 | case DW_CFA_expression: | |
2917 | strcpy (tmp, "exp"); | |
2918 | break; | |
12eae2d3 JJ |
2919 | case DW_CFA_val_expression: |
2920 | strcpy (tmp, "vexp"); | |
2921 | break; | |
19e6b90e L |
2922 | default: |
2923 | strcpy (tmp, "n/a"); | |
2924 | break; | |
2925 | } | |
2926 | printf ("%-5s", tmp); | |
2927 | } | |
2928 | } | |
2929 | printf ("\n"); | |
2930 | } | |
2931 | ||
2932 | static int | |
2933 | size_of_encoded_value (int encoding) | |
2934 | { | |
2935 | switch (encoding & 0x7) | |
2936 | { | |
2937 | default: /* ??? */ | |
2938 | case 0: return eh_addr_size; | |
2939 | case 2: return 2; | |
2940 | case 3: return 4; | |
2941 | case 4: return 8; | |
2942 | } | |
2943 | } | |
2944 | ||
2945 | static dwarf_vma | |
2946 | get_encoded_value (unsigned char *data, int encoding) | |
2947 | { | |
2948 | int size = size_of_encoded_value (encoding); | |
53b8873b | 2949 | |
19e6b90e L |
2950 | if (encoding & DW_EH_PE_signed) |
2951 | return byte_get_signed (data, size); | |
2952 | else | |
2953 | return byte_get (data, size); | |
2954 | } | |
2955 | ||
2956 | #define GET(N) byte_get (start, N); start += N | |
2957 | #define LEB() read_leb128 (start, & length_return, 0); start += length_return | |
2958 | #define SLEB() read_leb128 (start, & length_return, 1); start += length_return | |
2959 | ||
2960 | static int | |
2961 | display_debug_frames (struct dwarf_section *section, | |
2962 | void *file ATTRIBUTE_UNUSED) | |
2963 | { | |
2964 | unsigned char *start = section->start; | |
2965 | unsigned char *end = start + section->size; | |
2966 | unsigned char *section_start = start; | |
2967 | Frame_Chunk *chunks = 0; | |
2968 | Frame_Chunk *remembered_state = 0; | |
2969 | Frame_Chunk *rs; | |
2970 | int is_eh = strcmp (section->name, ".eh_frame") == 0; | |
2971 | unsigned int length_return; | |
2972 | int max_regs = 0; | |
2973 | ||
2974 | printf (_("The section %s contains:\n"), section->name); | |
2975 | ||
2976 | while (start < end) | |
2977 | { | |
2978 | unsigned char *saved_start; | |
2979 | unsigned char *block_end; | |
2980 | unsigned long length; | |
2981 | unsigned long cie_id; | |
2982 | Frame_Chunk *fc; | |
2983 | Frame_Chunk *cie; | |
2984 | int need_col_headers = 1; | |
2985 | unsigned char *augmentation_data = NULL; | |
2986 | unsigned long augmentation_data_len = 0; | |
2987 | int encoded_ptr_size = eh_addr_size; | |
2988 | int offset_size; | |
2989 | int initial_length_size; | |
2990 | ||
2991 | saved_start = start; | |
2992 | length = byte_get (start, 4); start += 4; | |
2993 | ||
2994 | if (length == 0) | |
2995 | { | |
2996 | printf ("\n%08lx ZERO terminator\n\n", | |
2997 | (unsigned long)(saved_start - section_start)); | |
b758e50f | 2998 | continue; |
19e6b90e L |
2999 | } |
3000 | ||
3001 | if (length == 0xffffffff) | |
3002 | { | |
3003 | length = byte_get (start, 8); | |
3004 | start += 8; | |
3005 | offset_size = 8; | |
3006 | initial_length_size = 12; | |
3007 | } | |
3008 | else | |
3009 | { | |
3010 | offset_size = 4; | |
3011 | initial_length_size = 4; | |
3012 | } | |
3013 | ||
3014 | block_end = saved_start + length + initial_length_size; | |
53b8873b NC |
3015 | if (block_end > end) |
3016 | { | |
3017 | warn ("Invalid length %#08lx in FDE at %#08lx\n", | |
3018 | length, (unsigned long)(saved_start - section_start)); | |
3019 | block_end = end; | |
3020 | } | |
19e6b90e L |
3021 | cie_id = byte_get (start, offset_size); start += offset_size; |
3022 | ||
3023 | if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID)) | |
3024 | { | |
3025 | int version; | |
3026 | ||
3027 | fc = xmalloc (sizeof (Frame_Chunk)); | |
3028 | memset (fc, 0, sizeof (Frame_Chunk)); | |
3029 | ||
3030 | fc->next = chunks; | |
3031 | chunks = fc; | |
3032 | fc->chunk_start = saved_start; | |
3033 | fc->ncols = 0; | |
3034 | fc->col_type = xmalloc (sizeof (short int)); | |
3035 | fc->col_offset = xmalloc (sizeof (int)); | |
3036 | frame_need_space (fc, max_regs-1); | |
3037 | ||
3038 | version = *start++; | |
3039 | ||
3040 | fc->augmentation = (char *) start; | |
3041 | start = (unsigned char *) strchr ((char *) start, '\0') + 1; | |
3042 | ||
3043 | if (fc->augmentation[0] == 'z') | |
3044 | { | |
3045 | fc->code_factor = LEB (); | |
3046 | fc->data_factor = SLEB (); | |
3047 | if (version == 1) | |
3048 | { | |
3049 | fc->ra = GET (1); | |
3050 | } | |
3051 | else | |
3052 | { | |
3053 | fc->ra = LEB (); | |
3054 | } | |
3055 | augmentation_data_len = LEB (); | |
3056 | augmentation_data = start; | |
3057 | start += augmentation_data_len; | |
3058 | } | |
3059 | else if (strcmp (fc->augmentation, "eh") == 0) | |
3060 | { | |
3061 | start += eh_addr_size; | |
3062 | fc->code_factor = LEB (); | |
3063 | fc->data_factor = SLEB (); | |
3064 | if (version == 1) | |
3065 | { | |
3066 | fc->ra = GET (1); | |
3067 | } | |
3068 | else | |
3069 | { | |
3070 | fc->ra = LEB (); | |
3071 | } | |
3072 | } | |
3073 | else | |
3074 | { | |
3075 | fc->code_factor = LEB (); | |
3076 | fc->data_factor = SLEB (); | |
3077 | if (version == 1) | |
3078 | { | |
3079 | fc->ra = GET (1); | |
3080 | } | |
3081 | else | |
3082 | { | |
3083 | fc->ra = LEB (); | |
3084 | } | |
3085 | } | |
3086 | cie = fc; | |
3087 | ||
3088 | if (do_debug_frames_interp) | |
3089 | printf ("\n%08lx %08lx %08lx CIE \"%s\" cf=%d df=%d ra=%d\n", | |
3090 | (unsigned long)(saved_start - section_start), length, cie_id, | |
3091 | fc->augmentation, fc->code_factor, fc->data_factor, | |
3092 | fc->ra); | |
3093 | else | |
3094 | { | |
3095 | printf ("\n%08lx %08lx %08lx CIE\n", | |
3096 | (unsigned long)(saved_start - section_start), length, cie_id); | |
3097 | printf (" Version: %d\n", version); | |
3098 | printf (" Augmentation: \"%s\"\n", fc->augmentation); | |
3099 | printf (" Code alignment factor: %u\n", fc->code_factor); | |
3100 | printf (" Data alignment factor: %d\n", fc->data_factor); | |
3101 | printf (" Return address column: %d\n", fc->ra); | |
3102 | ||
3103 | if (augmentation_data_len) | |
3104 | { | |
3105 | unsigned long i; | |
3106 | printf (" Augmentation data: "); | |
3107 | for (i = 0; i < augmentation_data_len; ++i) | |
3108 | printf (" %02x", augmentation_data[i]); | |
3109 | putchar ('\n'); | |
3110 | } | |
3111 | putchar ('\n'); | |
3112 | } | |
3113 | ||
3114 | if (augmentation_data_len) | |
3115 | { | |
3116 | unsigned char *p, *q; | |
3117 | p = (unsigned char *) fc->augmentation + 1; | |
3118 | q = augmentation_data; | |
3119 | ||
3120 | while (1) | |
3121 | { | |
3122 | if (*p == 'L') | |
3123 | q++; | |
3124 | else if (*p == 'P') | |
3125 | q += 1 + size_of_encoded_value (*q); | |
3126 | else if (*p == 'R') | |
3127 | fc->fde_encoding = *q++; | |
3128 | else | |
3129 | break; | |
3130 | p++; | |
3131 | } | |
3132 | ||
3133 | if (fc->fde_encoding) | |
3134 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); | |
3135 | } | |
3136 | ||
3137 | frame_need_space (fc, fc->ra); | |
3138 | } | |
3139 | else | |
3140 | { | |
3141 | unsigned char *look_for; | |
3142 | static Frame_Chunk fde_fc; | |
3143 | ||
3144 | fc = & fde_fc; | |
3145 | memset (fc, 0, sizeof (Frame_Chunk)); | |
3146 | ||
3147 | look_for = is_eh ? start - 4 - cie_id : section_start + cie_id; | |
3148 | ||
3149 | for (cie = chunks; cie ; cie = cie->next) | |
3150 | if (cie->chunk_start == look_for) | |
3151 | break; | |
3152 | ||
3153 | if (!cie) | |
3154 | { | |
53b8873b | 3155 | warn ("Invalid CIE pointer %#08lx in FDE at %#08lx\n", |
1617e571 | 3156 | cie_id, (unsigned long)(saved_start - section_start)); |
19e6b90e L |
3157 | fc->ncols = 0; |
3158 | fc->col_type = xmalloc (sizeof (short int)); | |
3159 | fc->col_offset = xmalloc (sizeof (int)); | |
3160 | frame_need_space (fc, max_regs - 1); | |
3161 | cie = fc; | |
3162 | fc->augmentation = ""; | |
3163 | fc->fde_encoding = 0; | |
3164 | } | |
3165 | else | |
3166 | { | |
3167 | fc->ncols = cie->ncols; | |
3168 | fc->col_type = xcmalloc (fc->ncols, sizeof (short int)); | |
3169 | fc->col_offset = xcmalloc (fc->ncols, sizeof (int)); | |
3170 | memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int)); | |
3171 | memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int)); | |
3172 | fc->augmentation = cie->augmentation; | |
3173 | fc->code_factor = cie->code_factor; | |
3174 | fc->data_factor = cie->data_factor; | |
3175 | fc->cfa_reg = cie->cfa_reg; | |
3176 | fc->cfa_offset = cie->cfa_offset; | |
3177 | fc->ra = cie->ra; | |
3178 | frame_need_space (fc, max_regs-1); | |
3179 | fc->fde_encoding = cie->fde_encoding; | |
3180 | } | |
3181 | ||
3182 | if (fc->fde_encoding) | |
3183 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); | |
3184 | ||
3185 | fc->pc_begin = get_encoded_value (start, fc->fde_encoding); | |
41e92641 | 3186 | if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel) |
19e6b90e L |
3187 | fc->pc_begin += section->address + (start - section_start); |
3188 | start += encoded_ptr_size; | |
3189 | fc->pc_range = byte_get (start, encoded_ptr_size); | |
3190 | start += encoded_ptr_size; | |
3191 | ||
3192 | if (cie->augmentation[0] == 'z') | |
3193 | { | |
3194 | augmentation_data_len = LEB (); | |
3195 | augmentation_data = start; | |
3196 | start += augmentation_data_len; | |
3197 | } | |
3198 | ||
3199 | printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=%08lx..%08lx\n", | |
3200 | (unsigned long)(saved_start - section_start), length, cie_id, | |
3201 | (unsigned long)(cie->chunk_start - section_start), | |
3202 | fc->pc_begin, fc->pc_begin + fc->pc_range); | |
3203 | if (! do_debug_frames_interp && augmentation_data_len) | |
3204 | { | |
3205 | unsigned long i; | |
3206 | ||
3207 | printf (" Augmentation data: "); | |
3208 | for (i = 0; i < augmentation_data_len; ++i) | |
3209 | printf (" %02x", augmentation_data[i]); | |
3210 | putchar ('\n'); | |
3211 | putchar ('\n'); | |
3212 | } | |
3213 | } | |
3214 | ||
3215 | /* At this point, fc is the current chunk, cie (if any) is set, and | |
3216 | we're about to interpret instructions for the chunk. */ | |
3217 | /* ??? At present we need to do this always, since this sizes the | |
3218 | fc->col_type and fc->col_offset arrays, which we write into always. | |
3219 | We should probably split the interpreted and non-interpreted bits | |
3220 | into two different routines, since there's so much that doesn't | |
3221 | really overlap between them. */ | |
3222 | if (1 || do_debug_frames_interp) | |
3223 | { | |
3224 | /* Start by making a pass over the chunk, allocating storage | |
3225 | and taking note of what registers are used. */ | |
3226 | unsigned char *tmp = start; | |
3227 | ||
3228 | while (start < block_end) | |
3229 | { | |
3230 | unsigned op, opa; | |
3231 | unsigned long reg, tmp; | |
3232 | ||
3233 | op = *start++; | |
3234 | opa = op & 0x3f; | |
3235 | if (op & 0xc0) | |
3236 | op &= 0xc0; | |
3237 | ||
3238 | /* Warning: if you add any more cases to this switch, be | |
3239 | sure to add them to the corresponding switch below. */ | |
3240 | switch (op) | |
3241 | { | |
3242 | case DW_CFA_advance_loc: | |
3243 | break; | |
3244 | case DW_CFA_offset: | |
3245 | LEB (); | |
3246 | frame_need_space (fc, opa); | |
3247 | fc->col_type[opa] = DW_CFA_undefined; | |
3248 | break; | |
3249 | case DW_CFA_restore: | |
3250 | frame_need_space (fc, opa); | |
3251 | fc->col_type[opa] = DW_CFA_undefined; | |
3252 | break; | |
3253 | case DW_CFA_set_loc: | |
3254 | start += encoded_ptr_size; | |
3255 | break; | |
3256 | case DW_CFA_advance_loc1: | |
3257 | start += 1; | |
3258 | break; | |
3259 | case DW_CFA_advance_loc2: | |
3260 | start += 2; | |
3261 | break; | |
3262 | case DW_CFA_advance_loc4: | |
3263 | start += 4; | |
3264 | break; | |
3265 | case DW_CFA_offset_extended: | |
12eae2d3 | 3266 | case DW_CFA_val_offset: |
19e6b90e L |
3267 | reg = LEB (); LEB (); |
3268 | frame_need_space (fc, reg); | |
3269 | fc->col_type[reg] = DW_CFA_undefined; | |
3270 | break; | |
3271 | case DW_CFA_restore_extended: | |
3272 | reg = LEB (); | |
3273 | frame_need_space (fc, reg); | |
3274 | fc->col_type[reg] = DW_CFA_undefined; | |
3275 | break; | |
3276 | case DW_CFA_undefined: | |
3277 | reg = LEB (); | |
3278 | frame_need_space (fc, reg); | |
3279 | fc->col_type[reg] = DW_CFA_undefined; | |
3280 | break; | |
3281 | case DW_CFA_same_value: | |
3282 | reg = LEB (); | |
3283 | frame_need_space (fc, reg); | |
3284 | fc->col_type[reg] = DW_CFA_undefined; | |
3285 | break; | |
3286 | case DW_CFA_register: | |
3287 | reg = LEB (); LEB (); | |
3288 | frame_need_space (fc, reg); | |
3289 | fc->col_type[reg] = DW_CFA_undefined; | |
3290 | break; | |
3291 | case DW_CFA_def_cfa: | |
3292 | LEB (); LEB (); | |
3293 | break; | |
3294 | case DW_CFA_def_cfa_register: | |
3295 | LEB (); | |
3296 | break; | |
3297 | case DW_CFA_def_cfa_offset: | |
3298 | LEB (); | |
3299 | break; | |
3300 | case DW_CFA_def_cfa_expression: | |
3301 | tmp = LEB (); | |
3302 | start += tmp; | |
3303 | break; | |
3304 | case DW_CFA_expression: | |
12eae2d3 | 3305 | case DW_CFA_val_expression: |
19e6b90e L |
3306 | reg = LEB (); |
3307 | tmp = LEB (); | |
3308 | start += tmp; | |
3309 | frame_need_space (fc, reg); | |
3310 | fc->col_type[reg] = DW_CFA_undefined; | |
3311 | break; | |
3312 | case DW_CFA_offset_extended_sf: | |
12eae2d3 | 3313 | case DW_CFA_val_offset_sf: |
19e6b90e L |
3314 | reg = LEB (); SLEB (); |
3315 | frame_need_space (fc, reg); | |
3316 | fc->col_type[reg] = DW_CFA_undefined; | |
3317 | break; | |
3318 | case DW_CFA_def_cfa_sf: | |
3319 | LEB (); SLEB (); | |
3320 | break; | |
3321 | case DW_CFA_def_cfa_offset_sf: | |
3322 | SLEB (); | |
3323 | break; | |
3324 | case DW_CFA_MIPS_advance_loc8: | |
3325 | start += 8; | |
3326 | break; | |
3327 | case DW_CFA_GNU_args_size: | |
3328 | LEB (); | |
3329 | break; | |
3330 | case DW_CFA_GNU_negative_offset_extended: | |
3331 | reg = LEB (); LEB (); | |
3332 | frame_need_space (fc, reg); | |
3333 | fc->col_type[reg] = DW_CFA_undefined; | |
3334 | ||
3335 | default: | |
3336 | break; | |
3337 | } | |
3338 | } | |
3339 | start = tmp; | |
3340 | } | |
3341 | ||
3342 | /* Now we know what registers are used, make a second pass over | |
3343 | the chunk, this time actually printing out the info. */ | |
3344 | ||
3345 | while (start < block_end) | |
3346 | { | |
3347 | unsigned op, opa; | |
3348 | unsigned long ul, reg, roffs; | |
3349 | long l, ofs; | |
3350 | dwarf_vma vma; | |
3351 | ||
3352 | op = *start++; | |
3353 | opa = op & 0x3f; | |
3354 | if (op & 0xc0) | |
3355 | op &= 0xc0; | |
3356 | ||
3357 | /* Warning: if you add any more cases to this switch, be | |
3358 | sure to add them to the corresponding switch above. */ | |
3359 | switch (op) | |
3360 | { | |
3361 | case DW_CFA_advance_loc: | |
3362 | if (do_debug_frames_interp) | |
3363 | frame_display_row (fc, &need_col_headers, &max_regs); | |
3364 | else | |
3365 | printf (" DW_CFA_advance_loc: %d to %08lx\n", | |
3366 | opa * fc->code_factor, | |
3367 | fc->pc_begin + opa * fc->code_factor); | |
3368 | fc->pc_begin += opa * fc->code_factor; | |
3369 | break; | |
3370 | ||
3371 | case DW_CFA_offset: | |
3372 | roffs = LEB (); | |
3373 | if (! do_debug_frames_interp) | |
3374 | printf (" DW_CFA_offset: r%d at cfa%+ld\n", | |
3375 | opa, roffs * fc->data_factor); | |
3376 | fc->col_type[opa] = DW_CFA_offset; | |
3377 | fc->col_offset[opa] = roffs * fc->data_factor; | |
3378 | break; | |
3379 | ||
3380 | case DW_CFA_restore: | |
3381 | if (! do_debug_frames_interp) | |
3382 | printf (" DW_CFA_restore: r%d\n", opa); | |
3383 | fc->col_type[opa] = cie->col_type[opa]; | |
3384 | fc->col_offset[opa] = cie->col_offset[opa]; | |
3385 | break; | |
3386 | ||
3387 | case DW_CFA_set_loc: | |
3388 | vma = get_encoded_value (start, fc->fde_encoding); | |
41e92641 | 3389 | if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel) |
19e6b90e L |
3390 | vma += section->address + (start - section_start); |
3391 | start += encoded_ptr_size; | |
3392 | if (do_debug_frames_interp) | |
3393 | frame_display_row (fc, &need_col_headers, &max_regs); | |
3394 | else | |
3395 | printf (" DW_CFA_set_loc: %08lx\n", (unsigned long)vma); | |
3396 | fc->pc_begin = vma; | |
3397 | break; | |
3398 | ||
3399 | case DW_CFA_advance_loc1: | |
3400 | ofs = byte_get (start, 1); start += 1; | |
3401 | if (do_debug_frames_interp) | |
3402 | frame_display_row (fc, &need_col_headers, &max_regs); | |
3403 | else | |
3404 | printf (" DW_CFA_advance_loc1: %ld to %08lx\n", | |
3405 | ofs * fc->code_factor, | |
3406 | fc->pc_begin + ofs * fc->code_factor); | |
3407 | fc->pc_begin += ofs * fc->code_factor; | |
3408 | break; | |
3409 | ||
3410 | case DW_CFA_advance_loc2: | |
3411 | ofs = byte_get (start, 2); start += 2; | |
3412 | if (do_debug_frames_interp) | |
3413 | frame_display_row (fc, &need_col_headers, &max_regs); | |
3414 | else | |
3415 | printf (" DW_CFA_advance_loc2: %ld to %08lx\n", | |
3416 | ofs * fc->code_factor, | |
3417 | fc->pc_begin + ofs * fc->code_factor); | |
3418 | fc->pc_begin += ofs * fc->code_factor; | |
3419 | break; | |
3420 | ||
3421 | case DW_CFA_advance_loc4: | |
3422 | ofs = byte_get (start, 4); start += 4; | |
3423 | if (do_debug_frames_interp) | |
3424 | frame_display_row (fc, &need_col_headers, &max_regs); | |
3425 | else | |
3426 | printf (" DW_CFA_advance_loc4: %ld to %08lx\n", | |
3427 | ofs * fc->code_factor, | |
3428 | fc->pc_begin + ofs * fc->code_factor); | |
3429 | fc->pc_begin += ofs * fc->code_factor; | |
3430 | break; | |
3431 | ||
3432 | case DW_CFA_offset_extended: | |
3433 | reg = LEB (); | |
3434 | roffs = LEB (); | |
3435 | if (! do_debug_frames_interp) | |
3436 | printf (" DW_CFA_offset_extended: r%ld at cfa%+ld\n", | |
3437 | reg, roffs * fc->data_factor); | |
3438 | fc->col_type[reg] = DW_CFA_offset; | |
3439 | fc->col_offset[reg] = roffs * fc->data_factor; | |
3440 | break; | |
3441 | ||
12eae2d3 JJ |
3442 | case DW_CFA_val_offset: |
3443 | reg = LEB (); | |
3444 | roffs = LEB (); | |
3445 | if (! do_debug_frames_interp) | |
3446 | printf (" DW_CFA_val_offset: r%ld at cfa%+ld\n", | |
3447 | reg, roffs * fc->data_factor); | |
3448 | fc->col_type[reg] = DW_CFA_val_offset; | |
3449 | fc->col_offset[reg] = roffs * fc->data_factor; | |
3450 | break; | |
3451 | ||
19e6b90e L |
3452 | case DW_CFA_restore_extended: |
3453 | reg = LEB (); | |
3454 | if (! do_debug_frames_interp) | |
3455 | printf (" DW_CFA_restore_extended: r%ld\n", reg); | |
3456 | fc->col_type[reg] = cie->col_type[reg]; | |
3457 | fc->col_offset[reg] = cie->col_offset[reg]; | |
3458 | break; | |
3459 | ||
3460 | case DW_CFA_undefined: | |
3461 | reg = LEB (); | |
3462 | if (! do_debug_frames_interp) | |
3463 | printf (" DW_CFA_undefined: r%ld\n", reg); | |
3464 | fc->col_type[reg] = DW_CFA_undefined; | |
3465 | fc->col_offset[reg] = 0; | |
3466 | break; | |
3467 | ||
3468 | case DW_CFA_same_value: | |
3469 | reg = LEB (); | |
3470 | if (! do_debug_frames_interp) | |
3471 | printf (" DW_CFA_same_value: r%ld\n", reg); | |
3472 | fc->col_type[reg] = DW_CFA_same_value; | |
3473 | fc->col_offset[reg] = 0; | |
3474 | break; | |
3475 | ||
3476 | case DW_CFA_register: | |
3477 | reg = LEB (); | |
3478 | roffs = LEB (); | |
3479 | if (! do_debug_frames_interp) | |
3480 | printf (" DW_CFA_register: r%ld in r%ld\n", reg, roffs); | |
3481 | fc->col_type[reg] = DW_CFA_register; | |
3482 | fc->col_offset[reg] = roffs; | |
3483 | break; | |
3484 | ||
3485 | case DW_CFA_remember_state: | |
3486 | if (! do_debug_frames_interp) | |
3487 | printf (" DW_CFA_remember_state\n"); | |
3488 | rs = xmalloc (sizeof (Frame_Chunk)); | |
3489 | rs->ncols = fc->ncols; | |
3490 | rs->col_type = xcmalloc (rs->ncols, sizeof (short int)); | |
3491 | rs->col_offset = xcmalloc (rs->ncols, sizeof (int)); | |
3492 | memcpy (rs->col_type, fc->col_type, rs->ncols); | |
3493 | memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int)); | |
3494 | rs->next = remembered_state; | |
3495 | remembered_state = rs; | |
3496 | break; | |
3497 | ||
3498 | case DW_CFA_restore_state: | |
3499 | if (! do_debug_frames_interp) | |
3500 | printf (" DW_CFA_restore_state\n"); | |
3501 | rs = remembered_state; | |
3502 | if (rs) | |
3503 | { | |
3504 | remembered_state = rs->next; | |
3505 | frame_need_space (fc, rs->ncols-1); | |
3506 | memcpy (fc->col_type, rs->col_type, rs->ncols); | |
3507 | memcpy (fc->col_offset, rs->col_offset, | |
3508 | rs->ncols * sizeof (int)); | |
3509 | free (rs->col_type); | |
3510 | free (rs->col_offset); | |
3511 | free (rs); | |
3512 | } | |
3513 | else if (do_debug_frames_interp) | |
3514 | printf ("Mismatched DW_CFA_restore_state\n"); | |
3515 | break; | |
3516 | ||
3517 | case DW_CFA_def_cfa: | |
3518 | fc->cfa_reg = LEB (); | |
3519 | fc->cfa_offset = LEB (); | |
3520 | fc->cfa_exp = 0; | |
3521 | if (! do_debug_frames_interp) | |
3522 | printf (" DW_CFA_def_cfa: r%d ofs %d\n", | |
3523 | fc->cfa_reg, fc->cfa_offset); | |
3524 | break; | |
3525 | ||
3526 | case DW_CFA_def_cfa_register: | |
3527 | fc->cfa_reg = LEB (); | |
3528 | fc->cfa_exp = 0; | |
3529 | if (! do_debug_frames_interp) | |
3530 | printf (" DW_CFA_def_cfa_reg: r%d\n", fc->cfa_reg); | |
3531 | break; | |
3532 | ||
3533 | case DW_CFA_def_cfa_offset: | |
3534 | fc->cfa_offset = LEB (); | |
3535 | if (! do_debug_frames_interp) | |
3536 | printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset); | |
3537 | break; | |
3538 | ||
3539 | case DW_CFA_nop: | |
3540 | if (! do_debug_frames_interp) | |
3541 | printf (" DW_CFA_nop\n"); | |
3542 | break; | |
3543 | ||
3544 | case DW_CFA_def_cfa_expression: | |
3545 | ul = LEB (); | |
3546 | if (! do_debug_frames_interp) | |
3547 | { | |
3548 | printf (" DW_CFA_def_cfa_expression ("); | |
3549 | decode_location_expression (start, eh_addr_size, ul, 0); | |
3550 | printf (")\n"); | |
3551 | } | |
3552 | fc->cfa_exp = 1; | |
3553 | start += ul; | |
3554 | break; | |
3555 | ||
3556 | case DW_CFA_expression: | |
3557 | reg = LEB (); | |
3558 | ul = LEB (); | |
3559 | if (! do_debug_frames_interp) | |
3560 | { | |
3561 | printf (" DW_CFA_expression: r%ld (", reg); | |
3562 | decode_location_expression (start, eh_addr_size, ul, 0); | |
3563 | printf (")\n"); | |
3564 | } | |
3565 | fc->col_type[reg] = DW_CFA_expression; | |
3566 | start += ul; | |
3567 | break; | |
3568 | ||
12eae2d3 JJ |
3569 | case DW_CFA_val_expression: |
3570 | reg = LEB (); | |
3571 | ul = LEB (); | |
3572 | if (! do_debug_frames_interp) | |
3573 | { | |
3574 | printf (" DW_CFA_val_expression: r%ld (", reg); | |
3575 | decode_location_expression (start, eh_addr_size, ul, 0); | |
3576 | printf (")\n"); | |
3577 | } | |
3578 | fc->col_type[reg] = DW_CFA_val_expression; | |
3579 | start += ul; | |
3580 | break; | |
3581 | ||
19e6b90e L |
3582 | case DW_CFA_offset_extended_sf: |
3583 | reg = LEB (); | |
3584 | l = SLEB (); | |
3585 | frame_need_space (fc, reg); | |
3586 | if (! do_debug_frames_interp) | |
3587 | printf (" DW_CFA_offset_extended_sf: r%ld at cfa%+ld\n", | |
3588 | reg, l * fc->data_factor); | |
3589 | fc->col_type[reg] = DW_CFA_offset; | |
3590 | fc->col_offset[reg] = l * fc->data_factor; | |
3591 | break; | |
3592 | ||
12eae2d3 JJ |
3593 | case DW_CFA_val_offset_sf: |
3594 | reg = LEB (); | |
3595 | l = SLEB (); | |
3596 | frame_need_space (fc, reg); | |
3597 | if (! do_debug_frames_interp) | |
3598 | printf (" DW_CFA_val_offset_sf: r%ld at cfa%+ld\n", | |
3599 | reg, l * fc->data_factor); | |
3600 | fc->col_type[reg] = DW_CFA_val_offset; | |
3601 | fc->col_offset[reg] = l * fc->data_factor; | |
3602 | break; | |
3603 | ||
19e6b90e L |
3604 | case DW_CFA_def_cfa_sf: |
3605 | fc->cfa_reg = LEB (); | |
3606 | fc->cfa_offset = SLEB (); | |
3607 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; | |
3608 | fc->cfa_exp = 0; | |
3609 | if (! do_debug_frames_interp) | |
3610 | printf (" DW_CFA_def_cfa_sf: r%d ofs %d\n", | |
3611 | fc->cfa_reg, fc->cfa_offset); | |
3612 | break; | |
3613 | ||
3614 | case DW_CFA_def_cfa_offset_sf: | |
3615 | fc->cfa_offset = SLEB (); | |
3616 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; | |
3617 | if (! do_debug_frames_interp) | |
3618 | printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset); | |
3619 | break; | |
3620 | ||
3621 | case DW_CFA_MIPS_advance_loc8: | |
3622 | ofs = byte_get (start, 8); start += 8; | |
3623 | if (do_debug_frames_interp) | |
3624 | frame_display_row (fc, &need_col_headers, &max_regs); | |
3625 | else | |
3626 | printf (" DW_CFA_MIPS_advance_loc8: %ld to %08lx\n", | |
3627 | ofs * fc->code_factor, | |
3628 | fc->pc_begin + ofs * fc->code_factor); | |
3629 | fc->pc_begin += ofs * fc->code_factor; | |
3630 | break; | |
3631 | ||
3632 | case DW_CFA_GNU_window_save: | |
3633 | if (! do_debug_frames_interp) | |
3634 | printf (" DW_CFA_GNU_window_save\n"); | |
3635 | break; | |
3636 | ||
3637 | case DW_CFA_GNU_args_size: | |
3638 | ul = LEB (); | |
3639 | if (! do_debug_frames_interp) | |
3640 | printf (" DW_CFA_GNU_args_size: %ld\n", ul); | |
3641 | break; | |
3642 | ||
3643 | case DW_CFA_GNU_negative_offset_extended: | |
3644 | reg = LEB (); | |
3645 | l = - LEB (); | |
3646 | frame_need_space (fc, reg); | |
3647 | if (! do_debug_frames_interp) | |
3648 | printf (" DW_CFA_GNU_negative_offset_extended: r%ld at cfa%+ld\n", | |
3649 | reg, l * fc->data_factor); | |
3650 | fc->col_type[reg] = DW_CFA_offset; | |
3651 | fc->col_offset[reg] = l * fc->data_factor; | |
3652 | break; | |
3653 | ||
3654 | default: | |
53b8873b NC |
3655 | if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user) |
3656 | printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op); | |
3657 | else | |
3658 | warn (_("unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op); | |
19e6b90e L |
3659 | start = block_end; |
3660 | } | |
3661 | } | |
3662 | ||
3663 | if (do_debug_frames_interp) | |
3664 | frame_display_row (fc, &need_col_headers, &max_regs); | |
3665 | ||
3666 | start = block_end; | |
3667 | } | |
3668 | ||
3669 | printf ("\n"); | |
3670 | ||
3671 | return 1; | |
3672 | } | |
3673 | ||
3674 | #undef GET | |
3675 | #undef LEB | |
3676 | #undef SLEB | |
3677 | ||
3678 | static int | |
3679 | display_debug_not_supported (struct dwarf_section *section, | |
3680 | void *file ATTRIBUTE_UNUSED) | |
3681 | { | |
3682 | printf (_("Displaying the debug contents of section %s is not yet supported.\n"), | |
3683 | section->name); | |
3684 | ||
3685 | return 1; | |
3686 | } | |
3687 | ||
3688 | void * | |
3689 | cmalloc (size_t nmemb, size_t size) | |
3690 | { | |
3691 | /* Check for overflow. */ | |
3692 | if (nmemb >= ~(size_t) 0 / size) | |
3693 | return NULL; | |
3694 | else | |
3695 | return malloc (nmemb * size); | |
3696 | } | |
3697 | ||
3698 | void * | |
3699 | xcmalloc (size_t nmemb, size_t size) | |
3700 | { | |
3701 | /* Check for overflow. */ | |
3702 | if (nmemb >= ~(size_t) 0 / size) | |
3703 | return NULL; | |
3704 | else | |
3705 | return xmalloc (nmemb * size); | |
3706 | } | |
3707 | ||
3708 | void * | |
3709 | xcrealloc (void *ptr, size_t nmemb, size_t size) | |
3710 | { | |
3711 | /* Check for overflow. */ | |
3712 | if (nmemb >= ~(size_t) 0 / size) | |
3713 | return NULL; | |
3714 | else | |
3715 | return xrealloc (ptr, nmemb * size); | |
3716 | } | |
3717 | ||
3718 | void | |
3719 | error (const char *message, ...) | |
3720 | { | |
3721 | va_list args; | |
3722 | ||
3723 | va_start (args, message); | |
3724 | fprintf (stderr, _("%s: Error: "), program_name); | |
3725 | vfprintf (stderr, message, args); | |
3726 | va_end (args); | |
3727 | } | |
3728 | ||
3729 | void | |
3730 | warn (const char *message, ...) | |
3731 | { | |
3732 | va_list args; | |
3733 | ||
3734 | va_start (args, message); | |
3735 | fprintf (stderr, _("%s: Warning: "), program_name); | |
3736 | vfprintf (stderr, message, args); | |
3737 | va_end (args); | |
3738 | } | |
3739 | ||
3740 | void | |
3741 | free_debug_memory (void) | |
3742 | { | |
3743 | enum dwarf_section_display_enum i; | |
3744 | ||
3745 | free_abbrevs (); | |
3746 | ||
3747 | for (i = 0; i < max; i++) | |
3748 | free_debug_section (i); | |
3749 | ||
3750 | if (debug_information) | |
3751 | { | |
3752 | for (i = 0; i < num_debug_info_entries; i++) | |
3753 | { | |
3754 | if (!debug_information [i].max_loc_offsets) | |
3755 | { | |
3756 | free (debug_information [i].loc_offsets); | |
3757 | free (debug_information [i].have_frame_base); | |
3758 | } | |
3759 | if (!debug_information [i].max_range_lists) | |
3760 | free (debug_information [i].range_lists); | |
3761 | } | |
3762 | free (debug_information); | |
3763 | debug_information = NULL; | |
3764 | num_debug_info_entries = 0; | |
3765 | } | |
3766 | ||
3767 | } | |
3768 | ||
3769 | struct dwarf_section_display debug_displays[] = | |
3770 | { | |
3771 | { { ".debug_abbrev", NULL, 0, 0 }, | |
3772 | display_debug_abbrev, 0, 0 }, | |
3773 | { { ".debug_aranges", NULL, 0, 0 }, | |
3774 | display_debug_aranges, 0, 0 }, | |
3775 | { { ".debug_frame", NULL, 0, 0 }, | |
3776 | display_debug_frames, 1, 0 }, | |
3777 | { { ".debug_info", NULL, 0, 0 }, | |
3778 | display_debug_info, 1, 0 }, | |
3779 | { { ".debug_line", NULL, 0, 0 }, | |
3780 | display_debug_lines, 0, 0 }, | |
3781 | { { ".debug_pubnames", NULL, 0, 0 }, | |
3782 | display_debug_pubnames, 0, 0 }, | |
3783 | { { ".eh_frame", NULL, 0, 0 }, | |
3784 | display_debug_frames, 1, 1 }, | |
3785 | { { ".debug_macinfo", NULL, 0, 0 }, | |
3786 | display_debug_macinfo, 0, 0 }, | |
3787 | { { ".debug_str", NULL, 0, 0 }, | |
3788 | display_debug_str, 0, 0 }, | |
3789 | { { ".debug_loc", NULL, 0, 0 }, | |
3790 | display_debug_loc, 0, 0 }, | |
3791 | { { ".debug_pubtypes", NULL, 0, 0 }, | |
3792 | display_debug_pubnames, 0, 0 }, | |
3793 | { { ".debug_ranges", NULL, 0, 0 }, | |
3794 | display_debug_ranges, 0, 0 }, | |
3795 | { { ".debug_static_func", NULL, 0, 0 }, | |
3796 | display_debug_not_supported, 0, 0 }, | |
3797 | { { ".debug_static_vars", NULL, 0, 0 }, | |
3798 | display_debug_not_supported, 0, 0 }, | |
3799 | { { ".debug_types", NULL, 0, 0 }, | |
3800 | display_debug_not_supported, 0, 0 }, | |
3801 | { { ".debug_weaknames", NULL, 0, 0 }, | |
3802 | display_debug_not_supported, 0, 0 } | |
3803 | }; |