Commit | Line | Data |
---|---|---|
19e6b90e | 1 | /* dwarf.c -- display DWARF contents of a BFD binary file |
fe4eaaf4 | 2 | Copyright 2005, 2006, 2007, 2008 |
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" | |
2dc4cec1 | 26 | #include "elf/common.h" |
3db64b00 AM |
27 | #include "elf/dwarf2.h" |
28 | #include "dwarf.h" | |
19e6b90e L |
29 | |
30 | static int have_frame_base; | |
31 | static int need_base_address; | |
32 | ||
33 | static unsigned int last_pointer_size = 0; | |
34 | static int warned_about_missing_comp_units = FALSE; | |
35 | ||
36 | static unsigned int num_debug_info_entries = 0; | |
37 | static debug_info *debug_information = NULL; | |
cc86f28f NC |
38 | /* Special value for num_debug_info_entries to indicate |
39 | that the .debug_info section could not be loaded/parsed. */ | |
40 | #define DEBUG_INFO_UNAVAILABLE (unsigned int) -1 | |
19e6b90e | 41 | |
2dc4cec1 | 42 | int eh_addr_size; |
19e6b90e L |
43 | |
44 | int do_debug_info; | |
45 | int do_debug_abbrevs; | |
46 | int do_debug_lines; | |
47 | int do_debug_pubnames; | |
48 | int do_debug_aranges; | |
49 | int do_debug_ranges; | |
50 | int do_debug_frames; | |
51 | int do_debug_frames_interp; | |
52 | int do_debug_macinfo; | |
53 | int do_debug_str; | |
54 | int do_debug_loc; | |
55 | ||
56 | dwarf_vma (*byte_get) (unsigned char *, int); | |
57 | ||
58 | dwarf_vma | |
59 | byte_get_little_endian (unsigned char *field, int size) | |
60 | { | |
61 | switch (size) | |
62 | { | |
63 | case 1: | |
64 | return *field; | |
65 | ||
66 | case 2: | |
67 | return ((unsigned int) (field[0])) | |
68 | | (((unsigned int) (field[1])) << 8); | |
69 | ||
70 | case 4: | |
71 | return ((unsigned long) (field[0])) | |
72 | | (((unsigned long) (field[1])) << 8) | |
73 | | (((unsigned long) (field[2])) << 16) | |
74 | | (((unsigned long) (field[3])) << 24); | |
75 | ||
76 | case 8: | |
77 | if (sizeof (dwarf_vma) == 8) | |
78 | return ((dwarf_vma) (field[0])) | |
79 | | (((dwarf_vma) (field[1])) << 8) | |
80 | | (((dwarf_vma) (field[2])) << 16) | |
81 | | (((dwarf_vma) (field[3])) << 24) | |
82 | | (((dwarf_vma) (field[4])) << 32) | |
83 | | (((dwarf_vma) (field[5])) << 40) | |
84 | | (((dwarf_vma) (field[6])) << 48) | |
85 | | (((dwarf_vma) (field[7])) << 56); | |
86 | else if (sizeof (dwarf_vma) == 4) | |
87 | /* We want to extract data from an 8 byte wide field and | |
88 | place it into a 4 byte wide field. Since this is a little | |
89 | endian source we can just use the 4 byte extraction code. */ | |
90 | return ((unsigned long) (field[0])) | |
91 | | (((unsigned long) (field[1])) << 8) | |
92 | | (((unsigned long) (field[2])) << 16) | |
93 | | (((unsigned long) (field[3])) << 24); | |
94 | ||
95 | default: | |
96 | error (_("Unhandled data length: %d\n"), size); | |
97 | abort (); | |
98 | } | |
99 | } | |
100 | ||
101 | dwarf_vma | |
102 | byte_get_big_endian (unsigned char *field, int size) | |
103 | { | |
104 | switch (size) | |
105 | { | |
106 | case 1: | |
107 | return *field; | |
108 | ||
109 | case 2: | |
110 | return ((unsigned int) (field[1])) | (((int) (field[0])) << 8); | |
111 | ||
112 | case 4: | |
113 | return ((unsigned long) (field[3])) | |
114 | | (((unsigned long) (field[2])) << 8) | |
115 | | (((unsigned long) (field[1])) << 16) | |
116 | | (((unsigned long) (field[0])) << 24); | |
117 | ||
118 | case 8: | |
119 | if (sizeof (dwarf_vma) == 8) | |
120 | return ((dwarf_vma) (field[7])) | |
121 | | (((dwarf_vma) (field[6])) << 8) | |
122 | | (((dwarf_vma) (field[5])) << 16) | |
123 | | (((dwarf_vma) (field[4])) << 24) | |
124 | | (((dwarf_vma) (field[3])) << 32) | |
125 | | (((dwarf_vma) (field[2])) << 40) | |
126 | | (((dwarf_vma) (field[1])) << 48) | |
127 | | (((dwarf_vma) (field[0])) << 56); | |
128 | else if (sizeof (dwarf_vma) == 4) | |
129 | { | |
130 | /* Although we are extracing data from an 8 byte wide field, | |
131 | we are returning only 4 bytes of data. */ | |
132 | field += 4; | |
133 | return ((unsigned long) (field[3])) | |
134 | | (((unsigned long) (field[2])) << 8) | |
135 | | (((unsigned long) (field[1])) << 16) | |
136 | | (((unsigned long) (field[0])) << 24); | |
137 | } | |
138 | ||
139 | default: | |
140 | error (_("Unhandled data length: %d\n"), size); | |
141 | abort (); | |
142 | } | |
143 | } | |
144 | ||
145 | static dwarf_vma | |
146 | byte_get_signed (unsigned char *field, int size) | |
147 | { | |
148 | dwarf_vma x = byte_get (field, size); | |
149 | ||
150 | switch (size) | |
151 | { | |
152 | case 1: | |
153 | return (x ^ 0x80) - 0x80; | |
154 | case 2: | |
155 | return (x ^ 0x8000) - 0x8000; | |
156 | case 4: | |
157 | return (x ^ 0x80000000) - 0x80000000; | |
158 | case 8: | |
159 | return x; | |
160 | default: | |
161 | abort (); | |
162 | } | |
163 | } | |
164 | ||
2d9472a2 NC |
165 | /* Print a dwarf_vma value (typically an address, offset or length) in |
166 | hexadecimal format, followed by a space. The length of the value (and | |
167 | hence the precision displayed) is determined by the byte_size parameter. */ | |
168 | ||
169 | static void | |
170 | print_dwarf_vma (dwarf_vma val, unsigned byte_size) | |
171 | { | |
172 | static char buff[18]; | |
173 | ||
174 | /* Printf does not have a way of specifiying a maximum field width for an | |
175 | integer value, so we print the full value into a buffer and then select | |
176 | the precision we need. */ | |
177 | #if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2) | |
2e14fae2 | 178 | #ifndef __MSVCRT__ |
2d9472a2 | 179 | snprintf (buff, sizeof (buff), "%16.16llx ", val); |
2e14fae2 NC |
180 | #else |
181 | snprintf (buff, sizeof (buff), "%016I64x ", val); | |
182 | #endif | |
2d9472a2 NC |
183 | #else |
184 | snprintf (buff, sizeof (buff), "%16.16lx ", val); | |
185 | #endif | |
186 | ||
187 | printf (buff + (byte_size == 4 ? 8 : 0)); | |
188 | } | |
189 | ||
19e6b90e L |
190 | static unsigned long int |
191 | read_leb128 (unsigned char *data, unsigned int *length_return, int sign) | |
192 | { | |
193 | unsigned long int result = 0; | |
194 | unsigned int num_read = 0; | |
195 | unsigned int shift = 0; | |
196 | unsigned char byte; | |
197 | ||
198 | do | |
199 | { | |
200 | byte = *data++; | |
201 | num_read++; | |
202 | ||
203 | result |= ((unsigned long int) (byte & 0x7f)) << shift; | |
204 | ||
205 | shift += 7; | |
206 | ||
207 | } | |
208 | while (byte & 0x80); | |
209 | ||
210 | if (length_return != NULL) | |
211 | *length_return = num_read; | |
212 | ||
213 | if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40)) | |
214 | result |= -1L << shift; | |
215 | ||
216 | return result; | |
217 | } | |
218 | ||
219 | typedef struct State_Machine_Registers | |
220 | { | |
221 | unsigned long address; | |
222 | unsigned int file; | |
223 | unsigned int line; | |
224 | unsigned int column; | |
225 | int is_stmt; | |
226 | int basic_block; | |
227 | int end_sequence; | |
228 | /* This variable hold the number of the last entry seen | |
229 | in the File Table. */ | |
230 | unsigned int last_file_entry; | |
231 | } SMR; | |
232 | ||
233 | static SMR state_machine_regs; | |
234 | ||
235 | static void | |
236 | reset_state_machine (int is_stmt) | |
237 | { | |
238 | state_machine_regs.address = 0; | |
239 | state_machine_regs.file = 1; | |
240 | state_machine_regs.line = 1; | |
241 | state_machine_regs.column = 0; | |
242 | state_machine_regs.is_stmt = is_stmt; | |
243 | state_machine_regs.basic_block = 0; | |
244 | state_machine_regs.end_sequence = 0; | |
245 | state_machine_regs.last_file_entry = 0; | |
246 | } | |
247 | ||
248 | /* Handled an extend line op. | |
249 | Returns the number of bytes read. */ | |
250 | ||
251 | static int | |
1617e571 | 252 | process_extended_line_op (unsigned char *data, int is_stmt) |
19e6b90e L |
253 | { |
254 | unsigned char op_code; | |
255 | unsigned int bytes_read; | |
256 | unsigned int len; | |
257 | unsigned char *name; | |
258 | unsigned long adr; | |
259 | ||
260 | len = read_leb128 (data, & bytes_read, 0); | |
261 | data += bytes_read; | |
262 | ||
263 | if (len == 0) | |
264 | { | |
265 | warn (_("badly formed extended line op encountered!\n")); | |
266 | return bytes_read; | |
267 | } | |
268 | ||
269 | len += bytes_read; | |
270 | op_code = *data++; | |
271 | ||
272 | printf (_(" Extended opcode %d: "), op_code); | |
273 | ||
274 | switch (op_code) | |
275 | { | |
276 | case DW_LNE_end_sequence: | |
277 | printf (_("End of Sequence\n\n")); | |
278 | reset_state_machine (is_stmt); | |
279 | break; | |
280 | ||
281 | case DW_LNE_set_address: | |
1617e571 | 282 | adr = byte_get (data, len - bytes_read - 1); |
19e6b90e L |
283 | printf (_("set Address to 0x%lx\n"), adr); |
284 | state_machine_regs.address = adr; | |
285 | break; | |
286 | ||
287 | case DW_LNE_define_file: | |
288 | printf (_(" define new File Table entry\n")); | |
289 | printf (_(" Entry\tDir\tTime\tSize\tName\n")); | |
290 | ||
291 | printf (_(" %d\t"), ++state_machine_regs.last_file_entry); | |
292 | name = data; | |
293 | data += strlen ((char *) data) + 1; | |
294 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
295 | data += bytes_read; | |
296 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
297 | data += bytes_read; | |
298 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
299 | printf (_("%s\n\n"), name); | |
300 | break; | |
301 | ||
e2a0d921 NC |
302 | /* HP extensions. */ |
303 | case DW_LNE_HP_negate_is_UV_update: | |
304 | printf ("DW_LNE_HP_negate_is_UV_update"); | |
305 | break; | |
306 | case DW_LNE_HP_push_context: | |
307 | printf ("DW_LNE_HP_push_context"); | |
308 | break; | |
309 | case DW_LNE_HP_pop_context: | |
310 | printf ("DW_LNE_HP_pop_context"); | |
311 | break; | |
312 | case DW_LNE_HP_set_file_line_column: | |
313 | printf ("DW_LNE_HP_set_file_line_column"); | |
314 | break; | |
315 | case DW_LNE_HP_set_routine_name: | |
316 | printf ("DW_LNE_HP_set_routine_name"); | |
317 | break; | |
318 | case DW_LNE_HP_set_sequence: | |
319 | printf ("DW_LNE_HP_set_sequence"); | |
320 | break; | |
321 | case DW_LNE_HP_negate_post_semantics: | |
322 | printf ("DW_LNE_HP_negate_post_semantics"); | |
323 | break; | |
324 | case DW_LNE_HP_negate_function_exit: | |
325 | printf ("DW_LNE_HP_negate_function_exit"); | |
326 | break; | |
327 | case DW_LNE_HP_negate_front_end_logical: | |
328 | printf ("DW_LNE_HP_negate_front_end_logical"); | |
329 | break; | |
330 | case DW_LNE_HP_define_proc: | |
331 | printf ("DW_LNE_HP_define_proc"); | |
332 | break; | |
333 | ||
19e6b90e | 334 | default: |
e2a0d921 NC |
335 | if (op_code >= DW_LNE_lo_user |
336 | /* The test against DW_LNW_hi_user is redundant due to | |
337 | the limited range of the unsigned char data type used | |
338 | for op_code. */ | |
339 | /*&& op_code <= DW_LNE_hi_user*/) | |
340 | printf (_("user defined: length %d\n"), len - bytes_read); | |
341 | else | |
342 | printf (_("UNKNOWN: length %d\n"), len - bytes_read); | |
19e6b90e L |
343 | break; |
344 | } | |
345 | ||
346 | return len; | |
347 | } | |
348 | ||
349 | static const char * | |
350 | fetch_indirect_string (unsigned long offset) | |
351 | { | |
352 | struct dwarf_section *section = &debug_displays [str].section; | |
353 | ||
354 | if (section->start == NULL) | |
355 | return _("<no .debug_str section>"); | |
356 | ||
bfe2612a L |
357 | /* DWARF sections under Mach-O have non-zero addresses. */ |
358 | offset -= section->address; | |
19e6b90e L |
359 | if (offset > section->size) |
360 | { | |
361 | warn (_("DW_FORM_strp offset too big: %lx\n"), offset); | |
362 | return _("<offset is too big>"); | |
363 | } | |
364 | ||
365 | return (const char *) section->start + offset; | |
366 | } | |
367 | ||
368 | /* FIXME: There are better and more efficient ways to handle | |
369 | these structures. For now though, I just want something that | |
370 | is simple to implement. */ | |
371 | typedef struct abbrev_attr | |
372 | { | |
373 | unsigned long attribute; | |
374 | unsigned long form; | |
375 | struct abbrev_attr *next; | |
376 | } | |
377 | abbrev_attr; | |
378 | ||
379 | typedef struct abbrev_entry | |
380 | { | |
381 | unsigned long entry; | |
382 | unsigned long tag; | |
383 | int children; | |
384 | struct abbrev_attr *first_attr; | |
385 | struct abbrev_attr *last_attr; | |
386 | struct abbrev_entry *next; | |
387 | } | |
388 | abbrev_entry; | |
389 | ||
390 | static abbrev_entry *first_abbrev = NULL; | |
391 | static abbrev_entry *last_abbrev = NULL; | |
392 | ||
393 | static void | |
394 | free_abbrevs (void) | |
395 | { | |
396 | abbrev_entry *abbrev; | |
397 | ||
398 | for (abbrev = first_abbrev; abbrev;) | |
399 | { | |
400 | abbrev_entry *next = abbrev->next; | |
401 | abbrev_attr *attr; | |
402 | ||
403 | for (attr = abbrev->first_attr; attr;) | |
404 | { | |
405 | abbrev_attr *next = attr->next; | |
406 | ||
407 | free (attr); | |
408 | attr = next; | |
409 | } | |
410 | ||
411 | free (abbrev); | |
412 | abbrev = next; | |
413 | } | |
414 | ||
415 | last_abbrev = first_abbrev = NULL; | |
416 | } | |
417 | ||
418 | static void | |
419 | add_abbrev (unsigned long number, unsigned long tag, int children) | |
420 | { | |
421 | abbrev_entry *entry; | |
422 | ||
423 | entry = malloc (sizeof (*entry)); | |
424 | ||
425 | if (entry == NULL) | |
426 | /* ugg */ | |
427 | return; | |
428 | ||
429 | entry->entry = number; | |
430 | entry->tag = tag; | |
431 | entry->children = children; | |
432 | entry->first_attr = NULL; | |
433 | entry->last_attr = NULL; | |
434 | entry->next = NULL; | |
435 | ||
436 | if (first_abbrev == NULL) | |
437 | first_abbrev = entry; | |
438 | else | |
439 | last_abbrev->next = entry; | |
440 | ||
441 | last_abbrev = entry; | |
442 | } | |
443 | ||
444 | static void | |
445 | add_abbrev_attr (unsigned long attribute, unsigned long form) | |
446 | { | |
447 | abbrev_attr *attr; | |
448 | ||
449 | attr = malloc (sizeof (*attr)); | |
450 | ||
451 | if (attr == NULL) | |
452 | /* ugg */ | |
453 | return; | |
454 | ||
455 | attr->attribute = attribute; | |
456 | attr->form = form; | |
457 | attr->next = NULL; | |
458 | ||
459 | if (last_abbrev->first_attr == NULL) | |
460 | last_abbrev->first_attr = attr; | |
461 | else | |
462 | last_abbrev->last_attr->next = attr; | |
463 | ||
464 | last_abbrev->last_attr = attr; | |
465 | } | |
466 | ||
467 | /* Processes the (partial) contents of a .debug_abbrev section. | |
468 | Returns NULL if the end of the section was encountered. | |
469 | Returns the address after the last byte read if the end of | |
470 | an abbreviation set was found. */ | |
471 | ||
472 | static unsigned char * | |
473 | process_abbrev_section (unsigned char *start, unsigned char *end) | |
474 | { | |
475 | if (first_abbrev != NULL) | |
476 | return NULL; | |
477 | ||
478 | while (start < end) | |
479 | { | |
480 | unsigned int bytes_read; | |
481 | unsigned long entry; | |
482 | unsigned long tag; | |
483 | unsigned long attribute; | |
484 | int children; | |
485 | ||
486 | entry = read_leb128 (start, & bytes_read, 0); | |
487 | start += bytes_read; | |
488 | ||
489 | /* A single zero is supposed to end the section according | |
490 | to the standard. If there's more, then signal that to | |
491 | the caller. */ | |
492 | if (entry == 0) | |
493 | return start == end ? NULL : start; | |
494 | ||
495 | tag = read_leb128 (start, & bytes_read, 0); | |
496 | start += bytes_read; | |
497 | ||
498 | children = *start++; | |
499 | ||
500 | add_abbrev (entry, tag, children); | |
501 | ||
502 | do | |
503 | { | |
504 | unsigned long form; | |
505 | ||
506 | attribute = read_leb128 (start, & bytes_read, 0); | |
507 | start += bytes_read; | |
508 | ||
509 | form = read_leb128 (start, & bytes_read, 0); | |
510 | start += bytes_read; | |
511 | ||
512 | if (attribute != 0) | |
513 | add_abbrev_attr (attribute, form); | |
514 | } | |
515 | while (attribute != 0); | |
516 | } | |
517 | ||
518 | return NULL; | |
519 | } | |
520 | ||
521 | static char * | |
522 | get_TAG_name (unsigned long tag) | |
523 | { | |
524 | switch (tag) | |
525 | { | |
526 | case DW_TAG_padding: return "DW_TAG_padding"; | |
527 | case DW_TAG_array_type: return "DW_TAG_array_type"; | |
528 | case DW_TAG_class_type: return "DW_TAG_class_type"; | |
529 | case DW_TAG_entry_point: return "DW_TAG_entry_point"; | |
530 | case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type"; | |
531 | case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter"; | |
532 | case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration"; | |
533 | case DW_TAG_label: return "DW_TAG_label"; | |
534 | case DW_TAG_lexical_block: return "DW_TAG_lexical_block"; | |
535 | case DW_TAG_member: return "DW_TAG_member"; | |
536 | case DW_TAG_pointer_type: return "DW_TAG_pointer_type"; | |
537 | case DW_TAG_reference_type: return "DW_TAG_reference_type"; | |
538 | case DW_TAG_compile_unit: return "DW_TAG_compile_unit"; | |
539 | case DW_TAG_string_type: return "DW_TAG_string_type"; | |
540 | case DW_TAG_structure_type: return "DW_TAG_structure_type"; | |
541 | case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type"; | |
542 | case DW_TAG_typedef: return "DW_TAG_typedef"; | |
543 | case DW_TAG_union_type: return "DW_TAG_union_type"; | |
544 | case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters"; | |
545 | case DW_TAG_variant: return "DW_TAG_variant"; | |
546 | case DW_TAG_common_block: return "DW_TAG_common_block"; | |
547 | case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion"; | |
548 | case DW_TAG_inheritance: return "DW_TAG_inheritance"; | |
549 | case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine"; | |
550 | case DW_TAG_module: return "DW_TAG_module"; | |
551 | case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type"; | |
552 | case DW_TAG_set_type: return "DW_TAG_set_type"; | |
553 | case DW_TAG_subrange_type: return "DW_TAG_subrange_type"; | |
554 | case DW_TAG_with_stmt: return "DW_TAG_with_stmt"; | |
555 | case DW_TAG_access_declaration: return "DW_TAG_access_declaration"; | |
556 | case DW_TAG_base_type: return "DW_TAG_base_type"; | |
557 | case DW_TAG_catch_block: return "DW_TAG_catch_block"; | |
558 | case DW_TAG_const_type: return "DW_TAG_const_type"; | |
559 | case DW_TAG_constant: return "DW_TAG_constant"; | |
560 | case DW_TAG_enumerator: return "DW_TAG_enumerator"; | |
561 | case DW_TAG_file_type: return "DW_TAG_file_type"; | |
562 | case DW_TAG_friend: return "DW_TAG_friend"; | |
563 | case DW_TAG_namelist: return "DW_TAG_namelist"; | |
564 | case DW_TAG_namelist_item: return "DW_TAG_namelist_item"; | |
565 | case DW_TAG_packed_type: return "DW_TAG_packed_type"; | |
566 | case DW_TAG_subprogram: return "DW_TAG_subprogram"; | |
567 | case DW_TAG_template_type_param: return "DW_TAG_template_type_param"; | |
568 | case DW_TAG_template_value_param: return "DW_TAG_template_value_param"; | |
569 | case DW_TAG_thrown_type: return "DW_TAG_thrown_type"; | |
570 | case DW_TAG_try_block: return "DW_TAG_try_block"; | |
571 | case DW_TAG_variant_part: return "DW_TAG_variant_part"; | |
572 | case DW_TAG_variable: return "DW_TAG_variable"; | |
573 | case DW_TAG_volatile_type: return "DW_TAG_volatile_type"; | |
574 | case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop"; | |
575 | case DW_TAG_format_label: return "DW_TAG_format_label"; | |
576 | case DW_TAG_function_template: return "DW_TAG_function_template"; | |
577 | case DW_TAG_class_template: return "DW_TAG_class_template"; | |
578 | /* DWARF 2.1 values. */ | |
579 | case DW_TAG_dwarf_procedure: return "DW_TAG_dwarf_procedure"; | |
580 | case DW_TAG_restrict_type: return "DW_TAG_restrict_type"; | |
581 | case DW_TAG_interface_type: return "DW_TAG_interface_type"; | |
582 | case DW_TAG_namespace: return "DW_TAG_namespace"; | |
583 | case DW_TAG_imported_module: return "DW_TAG_imported_module"; | |
584 | case DW_TAG_unspecified_type: return "DW_TAG_unspecified_type"; | |
585 | case DW_TAG_partial_unit: return "DW_TAG_partial_unit"; | |
586 | case DW_TAG_imported_unit: return "DW_TAG_imported_unit"; | |
587 | /* UPC values. */ | |
588 | case DW_TAG_upc_shared_type: return "DW_TAG_upc_shared_type"; | |
589 | case DW_TAG_upc_strict_type: return "DW_TAG_upc_strict_type"; | |
590 | case DW_TAG_upc_relaxed_type: return "DW_TAG_upc_relaxed_type"; | |
591 | default: | |
592 | { | |
593 | static char buffer[100]; | |
594 | ||
595 | snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag); | |
596 | return buffer; | |
597 | } | |
598 | } | |
599 | } | |
600 | ||
601 | static char * | |
602 | get_FORM_name (unsigned long form) | |
603 | { | |
604 | switch (form) | |
605 | { | |
606 | case DW_FORM_addr: return "DW_FORM_addr"; | |
607 | case DW_FORM_block2: return "DW_FORM_block2"; | |
608 | case DW_FORM_block4: return "DW_FORM_block4"; | |
609 | case DW_FORM_data2: return "DW_FORM_data2"; | |
610 | case DW_FORM_data4: return "DW_FORM_data4"; | |
611 | case DW_FORM_data8: return "DW_FORM_data8"; | |
612 | case DW_FORM_string: return "DW_FORM_string"; | |
613 | case DW_FORM_block: return "DW_FORM_block"; | |
614 | case DW_FORM_block1: return "DW_FORM_block1"; | |
615 | case DW_FORM_data1: return "DW_FORM_data1"; | |
616 | case DW_FORM_flag: return "DW_FORM_flag"; | |
617 | case DW_FORM_sdata: return "DW_FORM_sdata"; | |
618 | case DW_FORM_strp: return "DW_FORM_strp"; | |
619 | case DW_FORM_udata: return "DW_FORM_udata"; | |
620 | case DW_FORM_ref_addr: return "DW_FORM_ref_addr"; | |
621 | case DW_FORM_ref1: return "DW_FORM_ref1"; | |
622 | case DW_FORM_ref2: return "DW_FORM_ref2"; | |
623 | case DW_FORM_ref4: return "DW_FORM_ref4"; | |
624 | case DW_FORM_ref8: return "DW_FORM_ref8"; | |
625 | case DW_FORM_ref_udata: return "DW_FORM_ref_udata"; | |
626 | case DW_FORM_indirect: return "DW_FORM_indirect"; | |
627 | default: | |
628 | { | |
629 | static char buffer[100]; | |
630 | ||
631 | snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form); | |
632 | return buffer; | |
633 | } | |
634 | } | |
635 | } | |
636 | ||
637 | static unsigned char * | |
638 | display_block (unsigned char *data, unsigned long length) | |
639 | { | |
640 | printf (_(" %lu byte block: "), length); | |
641 | ||
642 | while (length --) | |
643 | printf ("%lx ", (unsigned long) byte_get (data++, 1)); | |
644 | ||
645 | return data; | |
646 | } | |
647 | ||
648 | static int | |
649 | decode_location_expression (unsigned char * data, | |
650 | unsigned int pointer_size, | |
651 | unsigned long length, | |
652 | unsigned long cu_offset) | |
653 | { | |
654 | unsigned op; | |
655 | unsigned int bytes_read; | |
656 | unsigned long uvalue; | |
657 | unsigned char *end = data + length; | |
658 | int need_frame_base = 0; | |
659 | ||
660 | while (data < end) | |
661 | { | |
662 | op = *data++; | |
663 | ||
664 | switch (op) | |
665 | { | |
666 | case DW_OP_addr: | |
667 | printf ("DW_OP_addr: %lx", | |
668 | (unsigned long) byte_get (data, pointer_size)); | |
669 | data += pointer_size; | |
670 | break; | |
671 | case DW_OP_deref: | |
672 | printf ("DW_OP_deref"); | |
673 | break; | |
674 | case DW_OP_const1u: | |
675 | printf ("DW_OP_const1u: %lu", (unsigned long) byte_get (data++, 1)); | |
676 | break; | |
677 | case DW_OP_const1s: | |
678 | printf ("DW_OP_const1s: %ld", (long) byte_get_signed (data++, 1)); | |
679 | break; | |
680 | case DW_OP_const2u: | |
681 | printf ("DW_OP_const2u: %lu", (unsigned long) byte_get (data, 2)); | |
682 | data += 2; | |
683 | break; | |
684 | case DW_OP_const2s: | |
685 | printf ("DW_OP_const2s: %ld", (long) byte_get_signed (data, 2)); | |
686 | data += 2; | |
687 | break; | |
688 | case DW_OP_const4u: | |
689 | printf ("DW_OP_const4u: %lu", (unsigned long) byte_get (data, 4)); | |
690 | data += 4; | |
691 | break; | |
692 | case DW_OP_const4s: | |
693 | printf ("DW_OP_const4s: %ld", (long) byte_get_signed (data, 4)); | |
694 | data += 4; | |
695 | break; | |
696 | case DW_OP_const8u: | |
697 | printf ("DW_OP_const8u: %lu %lu", (unsigned long) byte_get (data, 4), | |
698 | (unsigned long) byte_get (data + 4, 4)); | |
699 | data += 8; | |
700 | break; | |
701 | case DW_OP_const8s: | |
702 | printf ("DW_OP_const8s: %ld %ld", (long) byte_get (data, 4), | |
703 | (long) byte_get (data + 4, 4)); | |
704 | data += 8; | |
705 | break; | |
706 | case DW_OP_constu: | |
707 | printf ("DW_OP_constu: %lu", read_leb128 (data, &bytes_read, 0)); | |
708 | data += bytes_read; | |
709 | break; | |
710 | case DW_OP_consts: | |
711 | printf ("DW_OP_consts: %ld", read_leb128 (data, &bytes_read, 1)); | |
712 | data += bytes_read; | |
713 | break; | |
714 | case DW_OP_dup: | |
715 | printf ("DW_OP_dup"); | |
716 | break; | |
717 | case DW_OP_drop: | |
718 | printf ("DW_OP_drop"); | |
719 | break; | |
720 | case DW_OP_over: | |
721 | printf ("DW_OP_over"); | |
722 | break; | |
723 | case DW_OP_pick: | |
724 | printf ("DW_OP_pick: %ld", (unsigned long) byte_get (data++, 1)); | |
725 | break; | |
726 | case DW_OP_swap: | |
727 | printf ("DW_OP_swap"); | |
728 | break; | |
729 | case DW_OP_rot: | |
730 | printf ("DW_OP_rot"); | |
731 | break; | |
732 | case DW_OP_xderef: | |
733 | printf ("DW_OP_xderef"); | |
734 | break; | |
735 | case DW_OP_abs: | |
736 | printf ("DW_OP_abs"); | |
737 | break; | |
738 | case DW_OP_and: | |
739 | printf ("DW_OP_and"); | |
740 | break; | |
741 | case DW_OP_div: | |
742 | printf ("DW_OP_div"); | |
743 | break; | |
744 | case DW_OP_minus: | |
745 | printf ("DW_OP_minus"); | |
746 | break; | |
747 | case DW_OP_mod: | |
748 | printf ("DW_OP_mod"); | |
749 | break; | |
750 | case DW_OP_mul: | |
751 | printf ("DW_OP_mul"); | |
752 | break; | |
753 | case DW_OP_neg: | |
754 | printf ("DW_OP_neg"); | |
755 | break; | |
756 | case DW_OP_not: | |
757 | printf ("DW_OP_not"); | |
758 | break; | |
759 | case DW_OP_or: | |
760 | printf ("DW_OP_or"); | |
761 | break; | |
762 | case DW_OP_plus: | |
763 | printf ("DW_OP_plus"); | |
764 | break; | |
765 | case DW_OP_plus_uconst: | |
766 | printf ("DW_OP_plus_uconst: %lu", | |
767 | read_leb128 (data, &bytes_read, 0)); | |
768 | data += bytes_read; | |
769 | break; | |
770 | case DW_OP_shl: | |
771 | printf ("DW_OP_shl"); | |
772 | break; | |
773 | case DW_OP_shr: | |
774 | printf ("DW_OP_shr"); | |
775 | break; | |
776 | case DW_OP_shra: | |
777 | printf ("DW_OP_shra"); | |
778 | break; | |
779 | case DW_OP_xor: | |
780 | printf ("DW_OP_xor"); | |
781 | break; | |
782 | case DW_OP_bra: | |
783 | printf ("DW_OP_bra: %ld", (long) byte_get_signed (data, 2)); | |
784 | data += 2; | |
785 | break; | |
786 | case DW_OP_eq: | |
787 | printf ("DW_OP_eq"); | |
788 | break; | |
789 | case DW_OP_ge: | |
790 | printf ("DW_OP_ge"); | |
791 | break; | |
792 | case DW_OP_gt: | |
793 | printf ("DW_OP_gt"); | |
794 | break; | |
795 | case DW_OP_le: | |
796 | printf ("DW_OP_le"); | |
797 | break; | |
798 | case DW_OP_lt: | |
799 | printf ("DW_OP_lt"); | |
800 | break; | |
801 | case DW_OP_ne: | |
802 | printf ("DW_OP_ne"); | |
803 | break; | |
804 | case DW_OP_skip: | |
805 | printf ("DW_OP_skip: %ld", (long) byte_get_signed (data, 2)); | |
806 | data += 2; | |
807 | break; | |
808 | ||
809 | case DW_OP_lit0: | |
810 | case DW_OP_lit1: | |
811 | case DW_OP_lit2: | |
812 | case DW_OP_lit3: | |
813 | case DW_OP_lit4: | |
814 | case DW_OP_lit5: | |
815 | case DW_OP_lit6: | |
816 | case DW_OP_lit7: | |
817 | case DW_OP_lit8: | |
818 | case DW_OP_lit9: | |
819 | case DW_OP_lit10: | |
820 | case DW_OP_lit11: | |
821 | case DW_OP_lit12: | |
822 | case DW_OP_lit13: | |
823 | case DW_OP_lit14: | |
824 | case DW_OP_lit15: | |
825 | case DW_OP_lit16: | |
826 | case DW_OP_lit17: | |
827 | case DW_OP_lit18: | |
828 | case DW_OP_lit19: | |
829 | case DW_OP_lit20: | |
830 | case DW_OP_lit21: | |
831 | case DW_OP_lit22: | |
832 | case DW_OP_lit23: | |
833 | case DW_OP_lit24: | |
834 | case DW_OP_lit25: | |
835 | case DW_OP_lit26: | |
836 | case DW_OP_lit27: | |
837 | case DW_OP_lit28: | |
838 | case DW_OP_lit29: | |
839 | case DW_OP_lit30: | |
840 | case DW_OP_lit31: | |
841 | printf ("DW_OP_lit%d", op - DW_OP_lit0); | |
842 | break; | |
843 | ||
844 | case DW_OP_reg0: | |
845 | case DW_OP_reg1: | |
846 | case DW_OP_reg2: | |
847 | case DW_OP_reg3: | |
848 | case DW_OP_reg4: | |
849 | case DW_OP_reg5: | |
850 | case DW_OP_reg6: | |
851 | case DW_OP_reg7: | |
852 | case DW_OP_reg8: | |
853 | case DW_OP_reg9: | |
854 | case DW_OP_reg10: | |
855 | case DW_OP_reg11: | |
856 | case DW_OP_reg12: | |
857 | case DW_OP_reg13: | |
858 | case DW_OP_reg14: | |
859 | case DW_OP_reg15: | |
860 | case DW_OP_reg16: | |
861 | case DW_OP_reg17: | |
862 | case DW_OP_reg18: | |
863 | case DW_OP_reg19: | |
864 | case DW_OP_reg20: | |
865 | case DW_OP_reg21: | |
866 | case DW_OP_reg22: | |
867 | case DW_OP_reg23: | |
868 | case DW_OP_reg24: | |
869 | case DW_OP_reg25: | |
870 | case DW_OP_reg26: | |
871 | case DW_OP_reg27: | |
872 | case DW_OP_reg28: | |
873 | case DW_OP_reg29: | |
874 | case DW_OP_reg30: | |
875 | case DW_OP_reg31: | |
876 | printf ("DW_OP_reg%d", op - DW_OP_reg0); | |
877 | break; | |
878 | ||
879 | case DW_OP_breg0: | |
880 | case DW_OP_breg1: | |
881 | case DW_OP_breg2: | |
882 | case DW_OP_breg3: | |
883 | case DW_OP_breg4: | |
884 | case DW_OP_breg5: | |
885 | case DW_OP_breg6: | |
886 | case DW_OP_breg7: | |
887 | case DW_OP_breg8: | |
888 | case DW_OP_breg9: | |
889 | case DW_OP_breg10: | |
890 | case DW_OP_breg11: | |
891 | case DW_OP_breg12: | |
892 | case DW_OP_breg13: | |
893 | case DW_OP_breg14: | |
894 | case DW_OP_breg15: | |
895 | case DW_OP_breg16: | |
896 | case DW_OP_breg17: | |
897 | case DW_OP_breg18: | |
898 | case DW_OP_breg19: | |
899 | case DW_OP_breg20: | |
900 | case DW_OP_breg21: | |
901 | case DW_OP_breg22: | |
902 | case DW_OP_breg23: | |
903 | case DW_OP_breg24: | |
904 | case DW_OP_breg25: | |
905 | case DW_OP_breg26: | |
906 | case DW_OP_breg27: | |
907 | case DW_OP_breg28: | |
908 | case DW_OP_breg29: | |
909 | case DW_OP_breg30: | |
910 | case DW_OP_breg31: | |
911 | printf ("DW_OP_breg%d: %ld", op - DW_OP_breg0, | |
912 | read_leb128 (data, &bytes_read, 1)); | |
913 | data += bytes_read; | |
914 | break; | |
915 | ||
916 | case DW_OP_regx: | |
917 | printf ("DW_OP_regx: %lu", read_leb128 (data, &bytes_read, 0)); | |
918 | data += bytes_read; | |
919 | break; | |
920 | case DW_OP_fbreg: | |
921 | need_frame_base = 1; | |
922 | printf ("DW_OP_fbreg: %ld", read_leb128 (data, &bytes_read, 1)); | |
923 | data += bytes_read; | |
924 | break; | |
925 | case DW_OP_bregx: | |
926 | uvalue = read_leb128 (data, &bytes_read, 0); | |
927 | data += bytes_read; | |
928 | printf ("DW_OP_bregx: %lu %ld", uvalue, | |
929 | read_leb128 (data, &bytes_read, 1)); | |
930 | data += bytes_read; | |
931 | break; | |
932 | case DW_OP_piece: | |
933 | printf ("DW_OP_piece: %lu", read_leb128 (data, &bytes_read, 0)); | |
934 | data += bytes_read; | |
935 | break; | |
936 | case DW_OP_deref_size: | |
937 | printf ("DW_OP_deref_size: %ld", (long) byte_get (data++, 1)); | |
938 | break; | |
939 | case DW_OP_xderef_size: | |
940 | printf ("DW_OP_xderef_size: %ld", (long) byte_get (data++, 1)); | |
941 | break; | |
942 | case DW_OP_nop: | |
943 | printf ("DW_OP_nop"); | |
944 | break; | |
945 | ||
946 | /* DWARF 3 extensions. */ | |
947 | case DW_OP_push_object_address: | |
948 | printf ("DW_OP_push_object_address"); | |
949 | break; | |
950 | case DW_OP_call2: | |
951 | /* XXX: Strictly speaking for 64-bit DWARF3 files | |
952 | this ought to be an 8-byte wide computation. */ | |
953 | printf ("DW_OP_call2: <%lx>", (long) byte_get (data, 2) + cu_offset); | |
954 | data += 2; | |
955 | break; | |
956 | case DW_OP_call4: | |
957 | /* XXX: Strictly speaking for 64-bit DWARF3 files | |
958 | this ought to be an 8-byte wide computation. */ | |
959 | printf ("DW_OP_call4: <%lx>", (long) byte_get (data, 4) + cu_offset); | |
960 | data += 4; | |
961 | break; | |
962 | case DW_OP_call_ref: | |
e2a0d921 NC |
963 | /* XXX: Strictly speaking for 64-bit DWARF3 files |
964 | this ought to be an 8-byte wide computation. */ | |
965 | printf ("DW_OP_call_ref: <%lx>", (long) byte_get (data, 4) + cu_offset); | |
966 | data += 4; | |
19e6b90e | 967 | break; |
a87b0a59 NS |
968 | case DW_OP_form_tls_address: |
969 | printf ("DW_OP_form_tls_address"); | |
970 | break; | |
e2a0d921 NC |
971 | case DW_OP_call_frame_cfa: |
972 | printf ("DW_OP_call_frame_cfa"); | |
973 | break; | |
974 | case DW_OP_bit_piece: | |
975 | printf ("DW_OP_bit_piece: "); | |
976 | printf ("size: %lu ", read_leb128 (data, &bytes_read, 0)); | |
977 | data += bytes_read; | |
978 | printf ("offset: %lu ", read_leb128 (data, &bytes_read, 0)); | |
979 | data += bytes_read; | |
980 | break; | |
19e6b90e L |
981 | |
982 | /* GNU extensions. */ | |
983 | case DW_OP_GNU_push_tls_address: | |
e2a0d921 NC |
984 | printf ("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown"); |
985 | break; | |
986 | case DW_OP_GNU_uninit: | |
987 | printf ("DW_OP_GNU_uninit"); | |
988 | /* FIXME: Is there data associated with this OP ? */ | |
989 | break; | |
990 | ||
991 | /* HP extensions. */ | |
992 | case DW_OP_HP_is_value: | |
993 | printf ("DW_OP_HP_is_value"); | |
994 | /* FIXME: Is there data associated with this OP ? */ | |
995 | break; | |
996 | case DW_OP_HP_fltconst4: | |
997 | printf ("DW_OP_HP_fltconst4"); | |
998 | /* FIXME: Is there data associated with this OP ? */ | |
999 | break; | |
1000 | case DW_OP_HP_fltconst8: | |
1001 | printf ("DW_OP_HP_fltconst8"); | |
1002 | /* FIXME: Is there data associated with this OP ? */ | |
1003 | break; | |
1004 | case DW_OP_HP_mod_range: | |
1005 | printf ("DW_OP_HP_mod_range"); | |
1006 | /* FIXME: Is there data associated with this OP ? */ | |
1007 | break; | |
1008 | case DW_OP_HP_unmod_range: | |
1009 | printf ("DW_OP_HP_unmod_range"); | |
1010 | /* FIXME: Is there data associated with this OP ? */ | |
1011 | break; | |
1012 | case DW_OP_HP_tls: | |
1013 | printf ("DW_OP_HP_tls"); | |
1014 | /* FIXME: Is there data associated with this OP ? */ | |
19e6b90e L |
1015 | break; |
1016 | ||
35d60fe4 NC |
1017 | /* PGI (STMicroelectronics) extensions. */ |
1018 | case DW_OP_PGI_omp_thread_num: | |
1019 | /* Pushes the thread number for the current thread as it would be | |
1020 | returned by the standard OpenMP library function: | |
1021 | omp_get_thread_num(). The "current thread" is the thread for | |
1022 | which the expression is being evaluated. */ | |
1023 | printf ("DW_OP_PGI_omp_thread_num"); | |
1024 | break; | |
1025 | ||
19e6b90e L |
1026 | default: |
1027 | if (op >= DW_OP_lo_user | |
1028 | && op <= DW_OP_hi_user) | |
1029 | printf (_("(User defined location op)")); | |
1030 | else | |
1031 | printf (_("(Unknown location op)")); | |
1032 | /* No way to tell where the next op is, so just bail. */ | |
1033 | return need_frame_base; | |
1034 | } | |
1035 | ||
1036 | /* Separate the ops. */ | |
1037 | if (data < end) | |
1038 | printf ("; "); | |
1039 | } | |
1040 | ||
1041 | return need_frame_base; | |
1042 | } | |
1043 | ||
1044 | static unsigned char * | |
6e3d6dc1 NC |
1045 | read_and_display_attr_value (unsigned long attribute, |
1046 | unsigned long form, | |
ec4d4525 | 1047 | unsigned char * data, |
6e3d6dc1 NC |
1048 | unsigned long cu_offset, |
1049 | unsigned long pointer_size, | |
1050 | unsigned long offset_size, | |
1051 | int dwarf_version, | |
1052 | debug_info * debug_info_p, | |
1053 | int do_loc, | |
1054 | struct dwarf_section * section) | |
19e6b90e L |
1055 | { |
1056 | unsigned long uvalue = 0; | |
1057 | unsigned char *block_start = NULL; | |
6e3d6dc1 | 1058 | unsigned char * orig_data = data; |
19e6b90e L |
1059 | unsigned int bytes_read; |
1060 | ||
1061 | switch (form) | |
1062 | { | |
1063 | default: | |
1064 | break; | |
1065 | ||
1066 | case DW_FORM_ref_addr: | |
1067 | if (dwarf_version == 2) | |
1068 | { | |
1069 | uvalue = byte_get (data, pointer_size); | |
1070 | data += pointer_size; | |
1071 | } | |
1072 | else if (dwarf_version == 3) | |
1073 | { | |
1074 | uvalue = byte_get (data, offset_size); | |
1075 | data += offset_size; | |
1076 | } | |
1077 | else | |
1078 | { | |
1079 | error (_("Internal error: DWARF version is not 2 or 3.\n")); | |
1080 | } | |
1081 | break; | |
1082 | ||
1083 | case DW_FORM_addr: | |
1084 | uvalue = byte_get (data, pointer_size); | |
1085 | data += pointer_size; | |
1086 | break; | |
1087 | ||
1088 | case DW_FORM_strp: | |
1089 | uvalue = byte_get (data, offset_size); | |
1090 | data += offset_size; | |
1091 | break; | |
1092 | ||
1093 | case DW_FORM_ref1: | |
1094 | case DW_FORM_flag: | |
1095 | case DW_FORM_data1: | |
1096 | uvalue = byte_get (data++, 1); | |
1097 | break; | |
1098 | ||
1099 | case DW_FORM_ref2: | |
1100 | case DW_FORM_data2: | |
1101 | uvalue = byte_get (data, 2); | |
1102 | data += 2; | |
1103 | break; | |
1104 | ||
1105 | case DW_FORM_ref4: | |
1106 | case DW_FORM_data4: | |
1107 | uvalue = byte_get (data, 4); | |
1108 | data += 4; | |
1109 | break; | |
1110 | ||
1111 | case DW_FORM_sdata: | |
1112 | uvalue = read_leb128 (data, & bytes_read, 1); | |
1113 | data += bytes_read; | |
1114 | break; | |
1115 | ||
1116 | case DW_FORM_ref_udata: | |
1117 | case DW_FORM_udata: | |
1118 | uvalue = read_leb128 (data, & bytes_read, 0); | |
1119 | data += bytes_read; | |
1120 | break; | |
1121 | ||
1122 | case DW_FORM_indirect: | |
1123 | form = read_leb128 (data, & bytes_read, 0); | |
1124 | data += bytes_read; | |
1125 | if (!do_loc) | |
1126 | printf (" %s", get_FORM_name (form)); | |
1127 | return read_and_display_attr_value (attribute, form, data, | |
1128 | cu_offset, pointer_size, | |
1129 | offset_size, dwarf_version, | |
ec4d4525 | 1130 | debug_info_p, do_loc, |
6e3d6dc1 | 1131 | section); |
19e6b90e L |
1132 | } |
1133 | ||
1134 | switch (form) | |
1135 | { | |
1136 | case DW_FORM_ref_addr: | |
1137 | if (!do_loc) | |
ec4d4525 | 1138 | printf (" <0x%lx>", uvalue); |
19e6b90e L |
1139 | break; |
1140 | ||
1141 | case DW_FORM_ref1: | |
1142 | case DW_FORM_ref2: | |
1143 | case DW_FORM_ref4: | |
1144 | case DW_FORM_ref_udata: | |
1145 | if (!do_loc) | |
ec4d4525 | 1146 | printf (" <0x%lx>", uvalue + cu_offset); |
19e6b90e L |
1147 | break; |
1148 | ||
1149 | case DW_FORM_data4: | |
1150 | case DW_FORM_addr: | |
1151 | if (!do_loc) | |
ec4d4525 | 1152 | printf (" 0x%lx", uvalue); |
19e6b90e L |
1153 | break; |
1154 | ||
1155 | case DW_FORM_flag: | |
1156 | case DW_FORM_data1: | |
1157 | case DW_FORM_data2: | |
1158 | case DW_FORM_sdata: | |
1159 | case DW_FORM_udata: | |
1160 | if (!do_loc) | |
1161 | printf (" %ld", uvalue); | |
1162 | break; | |
1163 | ||
1164 | case DW_FORM_ref8: | |
1165 | case DW_FORM_data8: | |
1166 | if (!do_loc) | |
1167 | { | |
1168 | uvalue = byte_get (data, 4); | |
ec4d4525 NC |
1169 | printf (" 0x%lx", uvalue); |
1170 | printf (" 0x%lx", (unsigned long) byte_get (data + 4, 4)); | |
19e6b90e L |
1171 | } |
1172 | if ((do_loc || do_debug_loc || do_debug_ranges) | |
1173 | && num_debug_info_entries == 0) | |
1174 | { | |
1175 | if (sizeof (uvalue) == 8) | |
1176 | uvalue = byte_get (data, 8); | |
1177 | else | |
1178 | error (_("DW_FORM_data8 is unsupported when sizeof (unsigned long) != 8\n")); | |
1179 | } | |
1180 | data += 8; | |
1181 | break; | |
1182 | ||
1183 | case DW_FORM_string: | |
1184 | if (!do_loc) | |
1185 | printf (" %s", data); | |
1186 | data += strlen ((char *) data) + 1; | |
1187 | break; | |
1188 | ||
1189 | case DW_FORM_block: | |
1190 | uvalue = read_leb128 (data, & bytes_read, 0); | |
1191 | block_start = data + bytes_read; | |
1192 | if (do_loc) | |
1193 | data = block_start + uvalue; | |
1194 | else | |
1195 | data = display_block (block_start, uvalue); | |
1196 | break; | |
1197 | ||
1198 | case DW_FORM_block1: | |
1199 | uvalue = byte_get (data, 1); | |
1200 | block_start = data + 1; | |
1201 | if (do_loc) | |
1202 | data = block_start + uvalue; | |
1203 | else | |
1204 | data = display_block (block_start, uvalue); | |
1205 | break; | |
1206 | ||
1207 | case DW_FORM_block2: | |
1208 | uvalue = byte_get (data, 2); | |
1209 | block_start = data + 2; | |
1210 | if (do_loc) | |
1211 | data = block_start + uvalue; | |
1212 | else | |
1213 | data = display_block (block_start, uvalue); | |
1214 | break; | |
1215 | ||
1216 | case DW_FORM_block4: | |
1217 | uvalue = byte_get (data, 4); | |
1218 | block_start = data + 4; | |
1219 | if (do_loc) | |
1220 | data = block_start + uvalue; | |
1221 | else | |
1222 | data = display_block (block_start, uvalue); | |
1223 | break; | |
1224 | ||
1225 | case DW_FORM_strp: | |
1226 | if (!do_loc) | |
1227 | printf (_(" (indirect string, offset: 0x%lx): %s"), | |
1228 | uvalue, fetch_indirect_string (uvalue)); | |
1229 | break; | |
1230 | ||
1231 | case DW_FORM_indirect: | |
1232 | /* Handled above. */ | |
1233 | break; | |
1234 | ||
1235 | default: | |
1236 | warn (_("Unrecognized form: %lu\n"), form); | |
1237 | break; | |
1238 | } | |
1239 | ||
19e6b90e L |
1240 | if ((do_loc || do_debug_loc || do_debug_ranges) |
1241 | && num_debug_info_entries == 0) | |
1242 | { | |
1243 | switch (attribute) | |
1244 | { | |
1245 | case DW_AT_frame_base: | |
1246 | have_frame_base = 1; | |
1247 | case DW_AT_location: | |
e2a0d921 NC |
1248 | case DW_AT_string_length: |
1249 | case DW_AT_return_addr: | |
19e6b90e L |
1250 | case DW_AT_data_member_location: |
1251 | case DW_AT_vtable_elem_location: | |
e2a0d921 NC |
1252 | case DW_AT_segment: |
1253 | case DW_AT_static_link: | |
1254 | case DW_AT_use_location: | |
1255 | if (form == DW_FORM_data4 || form == DW_FORM_data8) | |
19e6b90e L |
1256 | { |
1257 | /* Process location list. */ | |
1258 | unsigned int max = debug_info_p->max_loc_offsets; | |
1259 | unsigned int num = debug_info_p->num_loc_offsets; | |
1260 | ||
1261 | if (max == 0 || num >= max) | |
1262 | { | |
1263 | max += 1024; | |
1264 | debug_info_p->loc_offsets | |
1265 | = xcrealloc (debug_info_p->loc_offsets, | |
1266 | max, sizeof (*debug_info_p->loc_offsets)); | |
1267 | debug_info_p->have_frame_base | |
1268 | = xcrealloc (debug_info_p->have_frame_base, | |
1269 | max, sizeof (*debug_info_p->have_frame_base)); | |
1270 | debug_info_p->max_loc_offsets = max; | |
1271 | } | |
1272 | debug_info_p->loc_offsets [num] = uvalue; | |
1273 | debug_info_p->have_frame_base [num] = have_frame_base; | |
1274 | debug_info_p->num_loc_offsets++; | |
1275 | } | |
1276 | break; | |
e2a0d921 | 1277 | |
19e6b90e L |
1278 | case DW_AT_low_pc: |
1279 | if (need_base_address) | |
1280 | debug_info_p->base_address = uvalue; | |
1281 | break; | |
1282 | ||
1283 | case DW_AT_ranges: | |
1284 | if (form == DW_FORM_data4 || form == DW_FORM_data8) | |
1285 | { | |
1286 | /* Process range list. */ | |
1287 | unsigned int max = debug_info_p->max_range_lists; | |
1288 | unsigned int num = debug_info_p->num_range_lists; | |
1289 | ||
1290 | if (max == 0 || num >= max) | |
1291 | { | |
1292 | max += 1024; | |
1293 | debug_info_p->range_lists | |
1294 | = xcrealloc (debug_info_p->range_lists, | |
1295 | max, sizeof (*debug_info_p->range_lists)); | |
1296 | debug_info_p->max_range_lists = max; | |
1297 | } | |
1298 | debug_info_p->range_lists [num] = uvalue; | |
1299 | debug_info_p->num_range_lists++; | |
1300 | } | |
1301 | break; | |
1302 | ||
1303 | default: | |
1304 | break; | |
1305 | } | |
1306 | } | |
1307 | ||
1308 | if (do_loc) | |
1309 | return data; | |
1310 | ||
ec4d4525 | 1311 | /* For some attributes we can display further information. */ |
19e6b90e L |
1312 | printf ("\t"); |
1313 | ||
1314 | switch (attribute) | |
1315 | { | |
1316 | case DW_AT_inline: | |
1317 | switch (uvalue) | |
1318 | { | |
1319 | case DW_INL_not_inlined: | |
1320 | printf (_("(not inlined)")); | |
1321 | break; | |
1322 | case DW_INL_inlined: | |
1323 | printf (_("(inlined)")); | |
1324 | break; | |
1325 | case DW_INL_declared_not_inlined: | |
1326 | printf (_("(declared as inline but ignored)")); | |
1327 | break; | |
1328 | case DW_INL_declared_inlined: | |
1329 | printf (_("(declared as inline and inlined)")); | |
1330 | break; | |
1331 | default: | |
1332 | printf (_(" (Unknown inline attribute value: %lx)"), uvalue); | |
1333 | break; | |
1334 | } | |
1335 | break; | |
1336 | ||
1337 | case DW_AT_language: | |
1338 | switch (uvalue) | |
1339 | { | |
4b78141a | 1340 | /* Ordered by the numeric value of these constants. */ |
19e6b90e | 1341 | case DW_LANG_C89: printf ("(ANSI C)"); break; |
4b78141a NC |
1342 | case DW_LANG_C: printf ("(non-ANSI C)"); break; |
1343 | case DW_LANG_Ada83: printf ("(Ada)"); break; | |
19e6b90e | 1344 | case DW_LANG_C_plus_plus: printf ("(C++)"); break; |
4b78141a NC |
1345 | case DW_LANG_Cobol74: printf ("(Cobol 74)"); break; |
1346 | case DW_LANG_Cobol85: printf ("(Cobol 85)"); break; | |
19e6b90e L |
1347 | case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break; |
1348 | case DW_LANG_Fortran90: printf ("(Fortran 90)"); break; | |
19e6b90e | 1349 | case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break; |
4b78141a | 1350 | case DW_LANG_Modula2: printf ("(Modula 2)"); break; |
19e6b90e | 1351 | /* DWARF 2.1 values. */ |
4b78141a | 1352 | case DW_LANG_Java: printf ("(Java)"); break; |
19e6b90e L |
1353 | case DW_LANG_C99: printf ("(ANSI C99)"); break; |
1354 | case DW_LANG_Ada95: printf ("(ADA 95)"); break; | |
1355 | case DW_LANG_Fortran95: printf ("(Fortran 95)"); break; | |
4b78141a NC |
1356 | /* DWARF 3 values. */ |
1357 | case DW_LANG_PLI: printf ("(PLI)"); break; | |
1358 | case DW_LANG_ObjC: printf ("(Objective C)"); break; | |
1359 | case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break; | |
1360 | case DW_LANG_UPC: printf ("(Unified Parallel C)"); break; | |
1361 | case DW_LANG_D: printf ("(D)"); break; | |
19e6b90e L |
1362 | /* MIPS extension. */ |
1363 | case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break; | |
1364 | /* UPC extension. */ | |
1365 | case DW_LANG_Upc: printf ("(Unified Parallel C)"); break; | |
1366 | default: | |
4b78141a NC |
1367 | if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user) |
1368 | printf ("(implementation defined: %lx)", uvalue); | |
1369 | else | |
1370 | printf ("(Unknown: %lx)", uvalue); | |
19e6b90e L |
1371 | break; |
1372 | } | |
1373 | break; | |
1374 | ||
1375 | case DW_AT_encoding: | |
1376 | switch (uvalue) | |
1377 | { | |
1378 | case DW_ATE_void: printf ("(void)"); break; | |
1379 | case DW_ATE_address: printf ("(machine address)"); break; | |
1380 | case DW_ATE_boolean: printf ("(boolean)"); break; | |
1381 | case DW_ATE_complex_float: printf ("(complex float)"); break; | |
1382 | case DW_ATE_float: printf ("(float)"); break; | |
1383 | case DW_ATE_signed: printf ("(signed)"); break; | |
1384 | case DW_ATE_signed_char: printf ("(signed char)"); break; | |
1385 | case DW_ATE_unsigned: printf ("(unsigned)"); break; | |
1386 | case DW_ATE_unsigned_char: printf ("(unsigned char)"); break; | |
e2a0d921 | 1387 | /* DWARF 2.1 values: */ |
19e6b90e L |
1388 | case DW_ATE_imaginary_float: printf ("(imaginary float)"); break; |
1389 | case DW_ATE_decimal_float: printf ("(decimal float)"); break; | |
e2a0d921 NC |
1390 | /* DWARF 3 values: */ |
1391 | case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break; | |
1392 | case DW_ATE_numeric_string: printf ("(numeric_string)"); break; | |
1393 | case DW_ATE_edited: printf ("(edited)"); break; | |
1394 | case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break; | |
1395 | case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break; | |
1396 | /* HP extensions: */ | |
1397 | case DW_ATE_HP_float80: printf ("(HP_float80)"); break; | |
1398 | case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break; | |
1399 | case DW_ATE_HP_float128: printf ("(HP_float128)"); break; | |
1400 | case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break; | |
1401 | case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break; | |
1402 | case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break; | |
1403 | case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break; | |
1404 | ||
19e6b90e L |
1405 | default: |
1406 | if (uvalue >= DW_ATE_lo_user | |
1407 | && uvalue <= DW_ATE_hi_user) | |
1408 | printf ("(user defined type)"); | |
1409 | else | |
1410 | printf ("(unknown type)"); | |
1411 | break; | |
1412 | } | |
1413 | break; | |
1414 | ||
1415 | case DW_AT_accessibility: | |
1416 | switch (uvalue) | |
1417 | { | |
1418 | case DW_ACCESS_public: printf ("(public)"); break; | |
1419 | case DW_ACCESS_protected: printf ("(protected)"); break; | |
1420 | case DW_ACCESS_private: printf ("(private)"); break; | |
1421 | default: | |
1422 | printf ("(unknown accessibility)"); | |
1423 | break; | |
1424 | } | |
1425 | break; | |
1426 | ||
1427 | case DW_AT_visibility: | |
1428 | switch (uvalue) | |
1429 | { | |
1430 | case DW_VIS_local: printf ("(local)"); break; | |
1431 | case DW_VIS_exported: printf ("(exported)"); break; | |
1432 | case DW_VIS_qualified: printf ("(qualified)"); break; | |
1433 | default: printf ("(unknown visibility)"); break; | |
1434 | } | |
1435 | break; | |
1436 | ||
1437 | case DW_AT_virtuality: | |
1438 | switch (uvalue) | |
1439 | { | |
1440 | case DW_VIRTUALITY_none: printf ("(none)"); break; | |
1441 | case DW_VIRTUALITY_virtual: printf ("(virtual)"); break; | |
1442 | case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break; | |
1443 | default: printf ("(unknown virtuality)"); break; | |
1444 | } | |
1445 | break; | |
1446 | ||
1447 | case DW_AT_identifier_case: | |
1448 | switch (uvalue) | |
1449 | { | |
1450 | case DW_ID_case_sensitive: printf ("(case_sensitive)"); break; | |
1451 | case DW_ID_up_case: printf ("(up_case)"); break; | |
1452 | case DW_ID_down_case: printf ("(down_case)"); break; | |
1453 | case DW_ID_case_insensitive: printf ("(case_insensitive)"); break; | |
1454 | default: printf ("(unknown case)"); break; | |
1455 | } | |
1456 | break; | |
1457 | ||
1458 | case DW_AT_calling_convention: | |
1459 | switch (uvalue) | |
1460 | { | |
1461 | case DW_CC_normal: printf ("(normal)"); break; | |
1462 | case DW_CC_program: printf ("(program)"); break; | |
1463 | case DW_CC_nocall: printf ("(nocall)"); break; | |
1464 | default: | |
1465 | if (uvalue >= DW_CC_lo_user | |
1466 | && uvalue <= DW_CC_hi_user) | |
1467 | printf ("(user defined)"); | |
1468 | else | |
1469 | printf ("(unknown convention)"); | |
1470 | } | |
1471 | break; | |
1472 | ||
1473 | case DW_AT_ordering: | |
1474 | switch (uvalue) | |
1475 | { | |
1476 | case -1: printf ("(undefined)"); break; | |
1477 | case 0: printf ("(row major)"); break; | |
1478 | case 1: printf ("(column major)"); break; | |
1479 | } | |
1480 | break; | |
1481 | ||
1482 | case DW_AT_frame_base: | |
1483 | have_frame_base = 1; | |
1484 | case DW_AT_location: | |
e2a0d921 NC |
1485 | case DW_AT_string_length: |
1486 | case DW_AT_return_addr: | |
19e6b90e L |
1487 | case DW_AT_data_member_location: |
1488 | case DW_AT_vtable_elem_location: | |
e2a0d921 NC |
1489 | case DW_AT_segment: |
1490 | case DW_AT_static_link: | |
1491 | case DW_AT_use_location: | |
1492 | if (form == DW_FORM_data4 || form == DW_FORM_data8) | |
1493 | printf (_("(location list)")); | |
1494 | /* Fall through. */ | |
19e6b90e L |
1495 | case DW_AT_allocated: |
1496 | case DW_AT_associated: | |
1497 | case DW_AT_data_location: | |
1498 | case DW_AT_stride: | |
1499 | case DW_AT_upper_bound: | |
e2a0d921 | 1500 | case DW_AT_lower_bound: |
19e6b90e L |
1501 | if (block_start) |
1502 | { | |
1503 | int need_frame_base; | |
1504 | ||
1505 | printf ("("); | |
1506 | need_frame_base = decode_location_expression (block_start, | |
1507 | pointer_size, | |
1508 | uvalue, | |
1509 | cu_offset); | |
1510 | printf (")"); | |
1511 | if (need_frame_base && !have_frame_base) | |
1512 | printf (_(" [without DW_AT_frame_base]")); | |
1513 | } | |
19e6b90e L |
1514 | break; |
1515 | ||
ec4d4525 NC |
1516 | case DW_AT_import: |
1517 | { | |
ec4d4525 NC |
1518 | if (form == DW_FORM_ref1 |
1519 | || form == DW_FORM_ref2 | |
1520 | || form == DW_FORM_ref4) | |
1521 | uvalue += cu_offset; | |
1522 | ||
6e3d6dc1 NC |
1523 | if (uvalue >= section->size) |
1524 | warn (_("Offset %lx used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"), | |
1525 | uvalue, (long int)(orig_data - section->start)); | |
1526 | else | |
1527 | { | |
1528 | unsigned long abbrev_number; | |
1529 | abbrev_entry * entry; | |
1530 | ||
1531 | abbrev_number = read_leb128 (section->start + uvalue, NULL, 0); | |
ec4d4525 | 1532 | |
6e3d6dc1 NC |
1533 | printf ("[Abbrev Number: %ld", abbrev_number); |
1534 | for (entry = first_abbrev; entry != NULL; entry = entry->next) | |
1535 | if (entry->entry == abbrev_number) | |
1536 | break; | |
1537 | if (entry != NULL) | |
1538 | printf (" (%s)", get_TAG_name (entry->tag)); | |
1539 | printf ("]"); | |
1540 | } | |
ec4d4525 NC |
1541 | } |
1542 | break; | |
1543 | ||
19e6b90e L |
1544 | default: |
1545 | break; | |
1546 | } | |
1547 | ||
1548 | return data; | |
1549 | } | |
1550 | ||
1551 | static char * | |
1552 | get_AT_name (unsigned long attribute) | |
1553 | { | |
1554 | switch (attribute) | |
1555 | { | |
1556 | case DW_AT_sibling: return "DW_AT_sibling"; | |
1557 | case DW_AT_location: return "DW_AT_location"; | |
1558 | case DW_AT_name: return "DW_AT_name"; | |
1559 | case DW_AT_ordering: return "DW_AT_ordering"; | |
1560 | case DW_AT_subscr_data: return "DW_AT_subscr_data"; | |
1561 | case DW_AT_byte_size: return "DW_AT_byte_size"; | |
1562 | case DW_AT_bit_offset: return "DW_AT_bit_offset"; | |
1563 | case DW_AT_bit_size: return "DW_AT_bit_size"; | |
1564 | case DW_AT_element_list: return "DW_AT_element_list"; | |
1565 | case DW_AT_stmt_list: return "DW_AT_stmt_list"; | |
1566 | case DW_AT_low_pc: return "DW_AT_low_pc"; | |
1567 | case DW_AT_high_pc: return "DW_AT_high_pc"; | |
1568 | case DW_AT_language: return "DW_AT_language"; | |
1569 | case DW_AT_member: return "DW_AT_member"; | |
1570 | case DW_AT_discr: return "DW_AT_discr"; | |
1571 | case DW_AT_discr_value: return "DW_AT_discr_value"; | |
1572 | case DW_AT_visibility: return "DW_AT_visibility"; | |
1573 | case DW_AT_import: return "DW_AT_import"; | |
1574 | case DW_AT_string_length: return "DW_AT_string_length"; | |
1575 | case DW_AT_common_reference: return "DW_AT_common_reference"; | |
1576 | case DW_AT_comp_dir: return "DW_AT_comp_dir"; | |
1577 | case DW_AT_const_value: return "DW_AT_const_value"; | |
1578 | case DW_AT_containing_type: return "DW_AT_containing_type"; | |
1579 | case DW_AT_default_value: return "DW_AT_default_value"; | |
1580 | case DW_AT_inline: return "DW_AT_inline"; | |
1581 | case DW_AT_is_optional: return "DW_AT_is_optional"; | |
1582 | case DW_AT_lower_bound: return "DW_AT_lower_bound"; | |
1583 | case DW_AT_producer: return "DW_AT_producer"; | |
1584 | case DW_AT_prototyped: return "DW_AT_prototyped"; | |
1585 | case DW_AT_return_addr: return "DW_AT_return_addr"; | |
1586 | case DW_AT_start_scope: return "DW_AT_start_scope"; | |
1587 | case DW_AT_stride_size: return "DW_AT_stride_size"; | |
1588 | case DW_AT_upper_bound: return "DW_AT_upper_bound"; | |
1589 | case DW_AT_abstract_origin: return "DW_AT_abstract_origin"; | |
1590 | case DW_AT_accessibility: return "DW_AT_accessibility"; | |
1591 | case DW_AT_address_class: return "DW_AT_address_class"; | |
1592 | case DW_AT_artificial: return "DW_AT_artificial"; | |
1593 | case DW_AT_base_types: return "DW_AT_base_types"; | |
1594 | case DW_AT_calling_convention: return "DW_AT_calling_convention"; | |
1595 | case DW_AT_count: return "DW_AT_count"; | |
1596 | case DW_AT_data_member_location: return "DW_AT_data_member_location"; | |
1597 | case DW_AT_decl_column: return "DW_AT_decl_column"; | |
1598 | case DW_AT_decl_file: return "DW_AT_decl_file"; | |
1599 | case DW_AT_decl_line: return "DW_AT_decl_line"; | |
1600 | case DW_AT_declaration: return "DW_AT_declaration"; | |
1601 | case DW_AT_discr_list: return "DW_AT_discr_list"; | |
1602 | case DW_AT_encoding: return "DW_AT_encoding"; | |
1603 | case DW_AT_external: return "DW_AT_external"; | |
1604 | case DW_AT_frame_base: return "DW_AT_frame_base"; | |
1605 | case DW_AT_friend: return "DW_AT_friend"; | |
1606 | case DW_AT_identifier_case: return "DW_AT_identifier_case"; | |
1607 | case DW_AT_macro_info: return "DW_AT_macro_info"; | |
1608 | case DW_AT_namelist_items: return "DW_AT_namelist_items"; | |
1609 | case DW_AT_priority: return "DW_AT_priority"; | |
1610 | case DW_AT_segment: return "DW_AT_segment"; | |
1611 | case DW_AT_specification: return "DW_AT_specification"; | |
1612 | case DW_AT_static_link: return "DW_AT_static_link"; | |
1613 | case DW_AT_type: return "DW_AT_type"; | |
1614 | case DW_AT_use_location: return "DW_AT_use_location"; | |
1615 | case DW_AT_variable_parameter: return "DW_AT_variable_parameter"; | |
1616 | case DW_AT_virtuality: return "DW_AT_virtuality"; | |
1617 | case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location"; | |
1618 | /* DWARF 2.1 values. */ | |
1619 | case DW_AT_allocated: return "DW_AT_allocated"; | |
1620 | case DW_AT_associated: return "DW_AT_associated"; | |
1621 | case DW_AT_data_location: return "DW_AT_data_location"; | |
1622 | case DW_AT_stride: return "DW_AT_stride"; | |
1623 | case DW_AT_entry_pc: return "DW_AT_entry_pc"; | |
1624 | case DW_AT_use_UTF8: return "DW_AT_use_UTF8"; | |
1625 | case DW_AT_extension: return "DW_AT_extension"; | |
1626 | case DW_AT_ranges: return "DW_AT_ranges"; | |
1627 | case DW_AT_trampoline: return "DW_AT_trampoline"; | |
1628 | case DW_AT_call_column: return "DW_AT_call_column"; | |
1629 | case DW_AT_call_file: return "DW_AT_call_file"; | |
1630 | case DW_AT_call_line: return "DW_AT_call_line"; | |
e2a0d921 NC |
1631 | case DW_AT_description: return "DW_AT_description"; |
1632 | case DW_AT_binary_scale: return "DW_AT_binary_scale"; | |
1633 | case DW_AT_decimal_scale: return "DW_AT_decimal_scale"; | |
1634 | case DW_AT_small: return "DW_AT_small"; | |
1635 | case DW_AT_decimal_sign: return "DW_AT_decimal_sign"; | |
1636 | case DW_AT_digit_count: return "DW_AT_digit_count"; | |
1637 | case DW_AT_picture_string: return "DW_AT_picture_string"; | |
1638 | case DW_AT_mutable: return "DW_AT_mutable"; | |
1639 | case DW_AT_threads_scaled: return "DW_AT_threads_scaled"; | |
1640 | case DW_AT_explicit: return "DW_AT_explicit"; | |
1641 | case DW_AT_object_pointer: return "DW_AT_object_pointer"; | |
1642 | case DW_AT_endianity: return "DW_AT_endianity"; | |
1643 | case DW_AT_elemental: return "DW_AT_elemental"; | |
1644 | case DW_AT_pure: return "DW_AT_pure"; | |
1645 | case DW_AT_recursive: return "DW_AT_recursive"; | |
1646 | ||
1647 | /* HP and SGI/MIPS extensions. */ | |
1648 | case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin"; | |
1649 | case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin"; | |
1650 | case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin"; | |
1651 | case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor"; | |
1652 | case DW_AT_MIPS_software_pipeline_depth: return "DW_AT_MIPS_software_pipeline_depth"; | |
1653 | case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name"; | |
1654 | case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride"; | |
1655 | case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name"; | |
1656 | case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin"; | |
1657 | case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines"; | |
1658 | ||
1659 | /* HP Extensions. */ | |
1660 | case DW_AT_HP_block_index: return "DW_AT_HP_block_index"; | |
1661 | case DW_AT_HP_actuals_stmt_list: return "DW_AT_HP_actuals_stmt_list"; | |
1662 | case DW_AT_HP_proc_per_section: return "DW_AT_HP_proc_per_section"; | |
1663 | case DW_AT_HP_raw_data_ptr: return "DW_AT_HP_raw_data_ptr"; | |
1664 | case DW_AT_HP_pass_by_reference: return "DW_AT_HP_pass_by_reference"; | |
1665 | case DW_AT_HP_opt_level: return "DW_AT_HP_opt_level"; | |
1666 | case DW_AT_HP_prof_version_id: return "DW_AT_HP_prof_version_id"; | |
1667 | case DW_AT_HP_opt_flags: return "DW_AT_HP_opt_flags"; | |
1668 | case DW_AT_HP_cold_region_low_pc: return "DW_AT_HP_cold_region_low_pc"; | |
1669 | case DW_AT_HP_cold_region_high_pc: return "DW_AT_HP_cold_region_high_pc"; | |
1670 | case DW_AT_HP_all_variables_modifiable: return "DW_AT_HP_all_variables_modifiable"; | |
1671 | case DW_AT_HP_linkage_name: return "DW_AT_HP_linkage_name"; | |
1672 | case DW_AT_HP_prof_flags: return "DW_AT_HP_prof_flags"; | |
1673 | ||
1674 | /* One value is shared by the MIPS and HP extensions: */ | |
1675 | case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable"; | |
1676 | ||
19e6b90e L |
1677 | /* GNU extensions. */ |
1678 | case DW_AT_sf_names: return "DW_AT_sf_names"; | |
1679 | case DW_AT_src_info: return "DW_AT_src_info"; | |
1680 | case DW_AT_mac_info: return "DW_AT_mac_info"; | |
1681 | case DW_AT_src_coords: return "DW_AT_src_coords"; | |
1682 | case DW_AT_body_begin: return "DW_AT_body_begin"; | |
1683 | case DW_AT_body_end: return "DW_AT_body_end"; | |
1684 | case DW_AT_GNU_vector: return "DW_AT_GNU_vector"; | |
e2a0d921 | 1685 | |
19e6b90e L |
1686 | /* UPC extension. */ |
1687 | case DW_AT_upc_threads_scaled: return "DW_AT_upc_threads_scaled"; | |
e2a0d921 NC |
1688 | |
1689 | /* PGI (STMicroelectronics) extensions. */ | |
1690 | case DW_AT_PGI_lbase: return "DW_AT_PGI_lbase"; | |
1691 | case DW_AT_PGI_soffset: return "DW_AT_PGI_soffset"; | |
1692 | case DW_AT_PGI_lstride: return "DW_AT_PGI_lstride"; | |
1693 | ||
19e6b90e L |
1694 | default: |
1695 | { | |
1696 | static char buffer[100]; | |
1697 | ||
1698 | snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"), | |
1699 | attribute); | |
1700 | return buffer; | |
1701 | } | |
1702 | } | |
1703 | } | |
1704 | ||
1705 | static unsigned char * | |
6e3d6dc1 NC |
1706 | read_and_display_attr (unsigned long attribute, |
1707 | unsigned long form, | |
ec4d4525 | 1708 | unsigned char * data, |
6e3d6dc1 NC |
1709 | unsigned long cu_offset, |
1710 | unsigned long pointer_size, | |
1711 | unsigned long offset_size, | |
1712 | int dwarf_version, | |
1713 | debug_info * debug_info_p, | |
1714 | int do_loc, | |
1715 | struct dwarf_section * section) | |
19e6b90e L |
1716 | { |
1717 | if (!do_loc) | |
750f03b7 | 1718 | printf (" %-18s:", get_AT_name (attribute)); |
19e6b90e L |
1719 | data = read_and_display_attr_value (attribute, form, data, cu_offset, |
1720 | pointer_size, offset_size, | |
1721 | dwarf_version, debug_info_p, | |
6e3d6dc1 | 1722 | do_loc, section); |
19e6b90e L |
1723 | if (!do_loc) |
1724 | printf ("\n"); | |
1725 | return data; | |
1726 | } | |
1727 | ||
1728 | ||
1729 | /* Process the contents of a .debug_info section. If do_loc is non-zero | |
1730 | then we are scanning for location lists and we do not want to display | |
1731 | anything to the user. */ | |
1732 | ||
1733 | static int | |
6e3d6dc1 NC |
1734 | process_debug_info (struct dwarf_section *section, |
1735 | void *file, | |
19e6b90e L |
1736 | int do_loc) |
1737 | { | |
1738 | unsigned char *start = section->start; | |
1739 | unsigned char *end = start + section->size; | |
1740 | unsigned char *section_begin; | |
1741 | unsigned int unit; | |
1742 | unsigned int num_units = 0; | |
1743 | ||
1744 | if ((do_loc || do_debug_loc || do_debug_ranges) | |
1745 | && num_debug_info_entries == 0) | |
1746 | { | |
1747 | unsigned long length; | |
1748 | ||
1749 | /* First scan the section to get the number of comp units. */ | |
1750 | for (section_begin = start, num_units = 0; section_begin < end; | |
1751 | num_units ++) | |
1752 | { | |
1753 | /* Read the first 4 bytes. For a 32-bit DWARF section, this | |
1754 | will be the length. For a 64-bit DWARF section, it'll be | |
1755 | the escape code 0xffffffff followed by an 8 byte length. */ | |
1756 | length = byte_get (section_begin, 4); | |
1757 | ||
1758 | if (length == 0xffffffff) | |
1759 | { | |
1760 | length = byte_get (section_begin + 4, 8); | |
1761 | section_begin += length + 12; | |
1762 | } | |
ec4d4525 NC |
1763 | else if (length >= 0xfffffff0 && length < 0xffffffff) |
1764 | { | |
1765 | warn (_("Reserved length value (%lx) found in section %s\n"), length, section->name); | |
1766 | return 0; | |
1767 | } | |
19e6b90e L |
1768 | else |
1769 | section_begin += length + 4; | |
aca88567 NC |
1770 | |
1771 | /* Negative values are illegal, they may even cause infinite | |
1772 | looping. This can happen if we can't accurately apply | |
1773 | relocations to an object file. */ | |
1774 | if ((signed long) length <= 0) | |
1775 | { | |
1776 | warn (_("Corrupt unit length (%lx) found in section %s\n"), length, section->name); | |
1777 | return 0; | |
1778 | } | |
19e6b90e L |
1779 | } |
1780 | ||
1781 | if (num_units == 0) | |
1782 | { | |
1783 | error (_("No comp units in %s section ?"), section->name); | |
1784 | return 0; | |
1785 | } | |
1786 | ||
1787 | /* Then allocate an array to hold the information. */ | |
1788 | debug_information = cmalloc (num_units, | |
1789 | sizeof (* debug_information)); | |
1790 | if (debug_information == NULL) | |
1791 | { | |
1792 | error (_("Not enough memory for a debug info array of %u entries"), | |
1793 | num_units); | |
1794 | return 0; | |
1795 | } | |
1796 | } | |
1797 | ||
1798 | if (!do_loc) | |
1799 | { | |
1800 | printf (_("The section %s contains:\n\n"), section->name); | |
1801 | ||
1802 | load_debug_section (str, file); | |
1803 | } | |
1804 | ||
1805 | load_debug_section (abbrev, file); | |
1806 | if (debug_displays [abbrev].section.start == NULL) | |
1807 | { | |
1808 | warn (_("Unable to locate %s section!\n"), | |
1809 | debug_displays [abbrev].section.name); | |
1810 | return 0; | |
1811 | } | |
1812 | ||
1813 | for (section_begin = start, unit = 0; start < end; unit++) | |
1814 | { | |
1815 | DWARF2_Internal_CompUnit compunit; | |
1816 | unsigned char *hdrptr; | |
1817 | unsigned char *cu_abbrev_offset_ptr; | |
1818 | unsigned char *tags; | |
1819 | int level; | |
1820 | unsigned long cu_offset; | |
1821 | int offset_size; | |
1822 | int initial_length_size; | |
1823 | ||
1824 | hdrptr = start; | |
1825 | ||
1826 | compunit.cu_length = byte_get (hdrptr, 4); | |
1827 | hdrptr += 4; | |
1828 | ||
1829 | if (compunit.cu_length == 0xffffffff) | |
1830 | { | |
1831 | compunit.cu_length = byte_get (hdrptr, 8); | |
1832 | hdrptr += 8; | |
1833 | offset_size = 8; | |
1834 | initial_length_size = 12; | |
1835 | } | |
1836 | else | |
1837 | { | |
1838 | offset_size = 4; | |
1839 | initial_length_size = 4; | |
1840 | } | |
1841 | ||
1842 | compunit.cu_version = byte_get (hdrptr, 2); | |
1843 | hdrptr += 2; | |
1844 | ||
1845 | cu_offset = start - section_begin; | |
19e6b90e L |
1846 | |
1847 | cu_abbrev_offset_ptr = hdrptr; | |
1848 | compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size); | |
1849 | hdrptr += offset_size; | |
1850 | ||
1851 | compunit.cu_pointer_size = byte_get (hdrptr, 1); | |
1852 | hdrptr += 1; | |
1853 | if ((do_loc || do_debug_loc || do_debug_ranges) | |
1854 | && num_debug_info_entries == 0) | |
1855 | { | |
1856 | debug_information [unit].cu_offset = cu_offset; | |
1857 | debug_information [unit].pointer_size | |
1858 | = compunit.cu_pointer_size; | |
1859 | debug_information [unit].base_address = 0; | |
1860 | debug_information [unit].loc_offsets = NULL; | |
1861 | debug_information [unit].have_frame_base = NULL; | |
1862 | debug_information [unit].max_loc_offsets = 0; | |
1863 | debug_information [unit].num_loc_offsets = 0; | |
1864 | debug_information [unit].range_lists = NULL; | |
1865 | debug_information [unit].max_range_lists= 0; | |
1866 | debug_information [unit].num_range_lists = 0; | |
1867 | } | |
1868 | ||
19e6b90e L |
1869 | if (!do_loc) |
1870 | { | |
1871 | printf (_(" Compilation Unit @ offset 0x%lx:\n"), cu_offset); | |
cc86f28f NC |
1872 | printf (_(" Length: 0x%lx (%s)\n"), compunit.cu_length, |
1873 | initial_length_size == 8 ? "64-bit" : "32-bit"); | |
19e6b90e L |
1874 | printf (_(" Version: %d\n"), compunit.cu_version); |
1875 | printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset); | |
1876 | printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size); | |
1877 | } | |
1878 | ||
460c89ff NS |
1879 | if (cu_offset + compunit.cu_length + initial_length_size |
1880 | > section->size) | |
1881 | { | |
ec4d4525 NC |
1882 | warn (_("Debug info is corrupted, length of CU at %lx extends beyond end of section (length = %lx)\n"), |
1883 | cu_offset, compunit.cu_length); | |
460c89ff NS |
1884 | break; |
1885 | } | |
1886 | tags = hdrptr; | |
1887 | start += compunit.cu_length + initial_length_size; | |
1888 | ||
19e6b90e L |
1889 | if (compunit.cu_version != 2 && compunit.cu_version != 3) |
1890 | { | |
1febe64d NC |
1891 | warn (_("CU at offset %lx contains corrupt or unsupported version number: %d.\n"), |
1892 | cu_offset, compunit.cu_version); | |
19e6b90e L |
1893 | continue; |
1894 | } | |
1895 | ||
1896 | free_abbrevs (); | |
1897 | ||
bfe2612a L |
1898 | /* Process the abbrevs used by this compilation unit. DWARF |
1899 | sections under Mach-O have non-zero addresses. */ | |
460c89ff | 1900 | if (compunit.cu_abbrev_offset >= debug_displays [abbrev].section.size) |
ec4d4525 NC |
1901 | warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"), |
1902 | (unsigned long) compunit.cu_abbrev_offset, | |
1903 | (unsigned long) debug_displays [abbrev].section.size); | |
460c89ff NS |
1904 | else |
1905 | process_abbrev_section | |
1906 | ((unsigned char *) debug_displays [abbrev].section.start | |
1907 | + compunit.cu_abbrev_offset - debug_displays [abbrev].section.address, | |
1908 | (unsigned char *) debug_displays [abbrev].section.start | |
1909 | + debug_displays [abbrev].section.size); | |
19e6b90e L |
1910 | |
1911 | level = 0; | |
1912 | while (tags < start) | |
1913 | { | |
1914 | unsigned int bytes_read; | |
1915 | unsigned long abbrev_number; | |
ec4d4525 | 1916 | unsigned long die_offset; |
19e6b90e L |
1917 | abbrev_entry *entry; |
1918 | abbrev_attr *attr; | |
1919 | ||
ec4d4525 NC |
1920 | die_offset = tags - section_begin; |
1921 | ||
19e6b90e L |
1922 | abbrev_number = read_leb128 (tags, & bytes_read, 0); |
1923 | tags += bytes_read; | |
1924 | ||
ec4d4525 | 1925 | /* A null DIE marks the end of a list of siblings. */ |
19e6b90e L |
1926 | if (abbrev_number == 0) |
1927 | { | |
1928 | --level; | |
ec4d4525 NC |
1929 | if (level < 0) |
1930 | { | |
1931 | static unsigned num_bogus_warns = 0; | |
1932 | ||
1933 | if (num_bogus_warns < 3) | |
1934 | { | |
1935 | warn (_("Bogus end-of-siblings marker detected at offset %lx in .debug_info section\n"), | |
1936 | die_offset); | |
1937 | num_bogus_warns ++; | |
1938 | if (num_bogus_warns == 3) | |
1939 | warn (_("Further warnings about bogus end-of-sibling markers suppressed\n")); | |
1940 | } | |
1941 | } | |
19e6b90e L |
1942 | continue; |
1943 | } | |
1944 | ||
4b78141a NC |
1945 | if (!do_loc) |
1946 | printf (_(" <%d><%lx>: Abbrev Number: %lu"), | |
ec4d4525 | 1947 | level, die_offset, abbrev_number); |
4b78141a | 1948 | |
19e6b90e L |
1949 | /* Scan through the abbreviation list until we reach the |
1950 | correct entry. */ | |
1951 | for (entry = first_abbrev; | |
1952 | entry && entry->entry != abbrev_number; | |
1953 | entry = entry->next) | |
1954 | continue; | |
1955 | ||
1956 | if (entry == NULL) | |
1957 | { | |
4b78141a NC |
1958 | if (!do_loc) |
1959 | { | |
1960 | printf ("\n"); | |
1961 | fflush (stdout); | |
1962 | } | |
cc86f28f NC |
1963 | warn (_("DIE at offset %lx refers to abbreviation number %lu which does not exist\n"), |
1964 | die_offset, abbrev_number); | |
19e6b90e L |
1965 | return 0; |
1966 | } | |
1967 | ||
1968 | if (!do_loc) | |
4b78141a | 1969 | printf (_(" (%s)\n"), get_TAG_name (entry->tag)); |
19e6b90e L |
1970 | |
1971 | switch (entry->tag) | |
1972 | { | |
1973 | default: | |
1974 | need_base_address = 0; | |
1975 | break; | |
1976 | case DW_TAG_compile_unit: | |
1977 | need_base_address = 1; | |
1978 | break; | |
1979 | case DW_TAG_entry_point: | |
19e6b90e L |
1980 | case DW_TAG_subprogram: |
1981 | need_base_address = 0; | |
1982 | /* Assuming that there is no DW_AT_frame_base. */ | |
1983 | have_frame_base = 0; | |
1984 | break; | |
1985 | } | |
1986 | ||
1987 | for (attr = entry->first_attr; attr; attr = attr->next) | |
4b78141a NC |
1988 | { |
1989 | if (! do_loc) | |
1990 | /* Show the offset from where the tag was extracted. */ | |
750f03b7 | 1991 | printf (" <%2lx>", (unsigned long)(tags - section_begin)); |
4b78141a NC |
1992 | |
1993 | tags = read_and_display_attr (attr->attribute, | |
1994 | attr->form, | |
1995 | tags, cu_offset, | |
1996 | compunit.cu_pointer_size, | |
1997 | offset_size, | |
1998 | compunit.cu_version, | |
ec4d4525 | 1999 | debug_information + unit, |
6e3d6dc1 | 2000 | do_loc, section); |
4b78141a | 2001 | } |
19e6b90e L |
2002 | |
2003 | if (entry->children) | |
2004 | ++level; | |
2005 | } | |
2006 | } | |
2007 | ||
2008 | /* Set num_debug_info_entries here so that it can be used to check if | |
2009 | we need to process .debug_loc and .debug_ranges sections. */ | |
2010 | if ((do_loc || do_debug_loc || do_debug_ranges) | |
2011 | && num_debug_info_entries == 0) | |
2012 | num_debug_info_entries = num_units; | |
2013 | ||
2014 | if (!do_loc) | |
2015 | { | |
2016 | printf ("\n"); | |
2017 | } | |
2018 | ||
2019 | return 1; | |
2020 | } | |
2021 | ||
2022 | /* Locate and scan the .debug_info section in the file and record the pointer | |
2023 | sizes and offsets for the compilation units in it. Usually an executable | |
2024 | will have just one pointer size, but this is not guaranteed, and so we try | |
2025 | not to make any assumptions. Returns zero upon failure, or the number of | |
2026 | compilation units upon success. */ | |
2027 | ||
2028 | static unsigned int | |
2029 | load_debug_info (void * file) | |
2030 | { | |
2031 | /* Reset the last pointer size so that we can issue correct error | |
2032 | messages if we are displaying the contents of more than one section. */ | |
2033 | last_pointer_size = 0; | |
2034 | warned_about_missing_comp_units = FALSE; | |
2035 | ||
1febe64d NC |
2036 | /* If we have already tried and failed to load the .debug_info |
2037 | section then do not bother to repear the task. */ | |
cc86f28f | 2038 | if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) |
1febe64d NC |
2039 | return 0; |
2040 | ||
19e6b90e L |
2041 | /* If we already have the information there is nothing else to do. */ |
2042 | if (num_debug_info_entries > 0) | |
2043 | return num_debug_info_entries; | |
2044 | ||
2045 | if (load_debug_section (info, file) | |
2046 | && process_debug_info (&debug_displays [info].section, file, 1)) | |
2047 | return num_debug_info_entries; | |
1febe64d | 2048 | |
cc86f28f | 2049 | num_debug_info_entries = DEBUG_INFO_UNAVAILABLE; |
1febe64d | 2050 | return 0; |
19e6b90e L |
2051 | } |
2052 | ||
19e6b90e L |
2053 | static int |
2054 | display_debug_lines (struct dwarf_section *section, void *file) | |
2055 | { | |
2056 | unsigned char *start = section->start; | |
2057 | unsigned char *data = start; | |
2058 | unsigned char *end = start + section->size; | |
19e6b90e L |
2059 | |
2060 | printf (_("\nDump of debug contents of section %s:\n\n"), | |
2061 | section->name); | |
2062 | ||
1febe64d NC |
2063 | if (load_debug_info (file) == 0) |
2064 | { | |
2065 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), | |
2066 | section->name); | |
2067 | return 0; | |
2068 | } | |
19e6b90e L |
2069 | |
2070 | while (data < end) | |
2071 | { | |
2072 | DWARF2_Internal_LineInfo info; | |
2073 | unsigned char *standard_opcodes; | |
2074 | unsigned char *end_of_sequence; | |
2075 | unsigned char *hdrptr; | |
6523721c | 2076 | unsigned long hdroff; |
19e6b90e L |
2077 | int initial_length_size; |
2078 | int offset_size; | |
2079 | int i; | |
2080 | ||
2081 | hdrptr = data; | |
6523721c | 2082 | hdroff = hdrptr - start; |
19e6b90e L |
2083 | |
2084 | /* Check the length of the block. */ | |
2085 | info.li_length = byte_get (hdrptr, 4); | |
2086 | hdrptr += 4; | |
2087 | ||
2088 | if (info.li_length == 0xffffffff) | |
2089 | { | |
2090 | /* This section is 64-bit DWARF 3. */ | |
2091 | info.li_length = byte_get (hdrptr, 8); | |
2092 | hdrptr += 8; | |
2093 | offset_size = 8; | |
2094 | initial_length_size = 12; | |
2095 | } | |
2096 | else | |
2097 | { | |
2098 | offset_size = 4; | |
2099 | initial_length_size = 4; | |
2100 | } | |
2101 | ||
2102 | if (info.li_length + initial_length_size > section->size) | |
2103 | { | |
2104 | warn | |
2105 | (_("The line info appears to be corrupt - the section is too small\n")); | |
2106 | return 0; | |
2107 | } | |
2108 | ||
2109 | /* Check its version number. */ | |
2110 | info.li_version = byte_get (hdrptr, 2); | |
2111 | hdrptr += 2; | |
2112 | if (info.li_version != 2 && info.li_version != 3) | |
2113 | { | |
2114 | warn (_("Only DWARF version 2 and 3 line info is currently supported.\n")); | |
2115 | return 0; | |
2116 | } | |
2117 | ||
2118 | info.li_prologue_length = byte_get (hdrptr, offset_size); | |
2119 | hdrptr += offset_size; | |
2120 | info.li_min_insn_length = byte_get (hdrptr, 1); | |
2121 | hdrptr++; | |
2122 | info.li_default_is_stmt = byte_get (hdrptr, 1); | |
2123 | hdrptr++; | |
2124 | info.li_line_base = byte_get (hdrptr, 1); | |
2125 | hdrptr++; | |
2126 | info.li_line_range = byte_get (hdrptr, 1); | |
2127 | hdrptr++; | |
2128 | info.li_opcode_base = byte_get (hdrptr, 1); | |
2129 | hdrptr++; | |
2130 | ||
2131 | /* Sign extend the line base field. */ | |
2132 | info.li_line_base <<= 24; | |
2133 | info.li_line_base >>= 24; | |
2134 | ||
6523721c | 2135 | printf (_(" Offset: 0x%lx\n"), hdroff); |
19e6b90e L |
2136 | printf (_(" Length: %ld\n"), info.li_length); |
2137 | printf (_(" DWARF Version: %d\n"), info.li_version); | |
2138 | printf (_(" Prologue Length: %d\n"), info.li_prologue_length); | |
2139 | printf (_(" Minimum Instruction Length: %d\n"), info.li_min_insn_length); | |
2140 | printf (_(" Initial value of 'is_stmt': %d\n"), info.li_default_is_stmt); | |
2141 | printf (_(" Line Base: %d\n"), info.li_line_base); | |
2142 | printf (_(" Line Range: %d\n"), info.li_line_range); | |
2143 | printf (_(" Opcode Base: %d\n"), info.li_opcode_base); | |
19e6b90e L |
2144 | |
2145 | end_of_sequence = data + info.li_length + initial_length_size; | |
2146 | ||
2147 | reset_state_machine (info.li_default_is_stmt); | |
2148 | ||
2149 | /* Display the contents of the Opcodes table. */ | |
2150 | standard_opcodes = hdrptr; | |
2151 | ||
2152 | printf (_("\n Opcodes:\n")); | |
2153 | ||
2154 | for (i = 1; i < info.li_opcode_base; i++) | |
2155 | printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]); | |
2156 | ||
2157 | /* Display the contents of the Directory table. */ | |
2158 | data = standard_opcodes + info.li_opcode_base - 1; | |
2159 | ||
2160 | if (*data == 0) | |
2161 | printf (_("\n The Directory Table is empty.\n")); | |
2162 | else | |
2163 | { | |
2164 | printf (_("\n The Directory Table:\n")); | |
2165 | ||
2166 | while (*data != 0) | |
2167 | { | |
2168 | printf (_(" %s\n"), data); | |
2169 | ||
2170 | data += strlen ((char *) data) + 1; | |
2171 | } | |
2172 | } | |
2173 | ||
2174 | /* Skip the NUL at the end of the table. */ | |
2175 | data++; | |
2176 | ||
2177 | /* Display the contents of the File Name table. */ | |
2178 | if (*data == 0) | |
2179 | printf (_("\n The File Name Table is empty.\n")); | |
2180 | else | |
2181 | { | |
2182 | printf (_("\n The File Name Table:\n")); | |
2183 | printf (_(" Entry\tDir\tTime\tSize\tName\n")); | |
2184 | ||
2185 | while (*data != 0) | |
2186 | { | |
2187 | unsigned char *name; | |
2188 | unsigned int bytes_read; | |
2189 | ||
2190 | printf (_(" %d\t"), ++state_machine_regs.last_file_entry); | |
2191 | name = data; | |
2192 | ||
2193 | data += strlen ((char *) data) + 1; | |
2194 | ||
2195 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
2196 | data += bytes_read; | |
2197 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
2198 | data += bytes_read; | |
2199 | printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0)); | |
2200 | data += bytes_read; | |
2201 | printf (_("%s\n"), name); | |
2202 | } | |
2203 | } | |
2204 | ||
2205 | /* Skip the NUL at the end of the table. */ | |
2206 | data++; | |
2207 | ||
2208 | /* Now display the statements. */ | |
2209 | printf (_("\n Line Number Statements:\n")); | |
2210 | ||
2211 | while (data < end_of_sequence) | |
2212 | { | |
2213 | unsigned char op_code; | |
2214 | int adv; | |
2215 | unsigned long int uladv; | |
2216 | unsigned int bytes_read; | |
2217 | ||
2218 | op_code = *data++; | |
2219 | ||
2220 | if (op_code >= info.li_opcode_base) | |
2221 | { | |
2222 | op_code -= info.li_opcode_base; | |
2223 | uladv = (op_code / info.li_line_range) * info.li_min_insn_length; | |
2224 | state_machine_regs.address += uladv; | |
2225 | printf (_(" Special opcode %d: advance Address by %lu to 0x%lx"), | |
2226 | op_code, uladv, state_machine_regs.address); | |
2227 | adv = (op_code % info.li_line_range) + info.li_line_base; | |
2228 | state_machine_regs.line += adv; | |
2229 | printf (_(" and Line by %d to %d\n"), | |
2230 | adv, state_machine_regs.line); | |
2231 | } | |
2232 | else switch (op_code) | |
2233 | { | |
2234 | case DW_LNS_extended_op: | |
1617e571 | 2235 | data += process_extended_line_op (data, info.li_default_is_stmt); |
19e6b90e L |
2236 | break; |
2237 | ||
2238 | case DW_LNS_copy: | |
2239 | printf (_(" Copy\n")); | |
2240 | break; | |
2241 | ||
2242 | case DW_LNS_advance_pc: | |
2243 | uladv = read_leb128 (data, & bytes_read, 0); | |
2244 | uladv *= info.li_min_insn_length; | |
2245 | data += bytes_read; | |
2246 | state_machine_regs.address += uladv; | |
2247 | printf (_(" Advance PC by %lu to 0x%lx\n"), uladv, | |
2248 | state_machine_regs.address); | |
2249 | break; | |
2250 | ||
2251 | case DW_LNS_advance_line: | |
2252 | adv = read_leb128 (data, & bytes_read, 1); | |
2253 | data += bytes_read; | |
2254 | state_machine_regs.line += adv; | |
2255 | printf (_(" Advance Line by %d to %d\n"), adv, | |
2256 | state_machine_regs.line); | |
2257 | break; | |
2258 | ||
2259 | case DW_LNS_set_file: | |
2260 | adv = read_leb128 (data, & bytes_read, 0); | |
2261 | data += bytes_read; | |
2262 | printf (_(" Set File Name to entry %d in the File Name Table\n"), | |
2263 | adv); | |
2264 | state_machine_regs.file = adv; | |
2265 | break; | |
2266 | ||
2267 | case DW_LNS_set_column: | |
2268 | uladv = read_leb128 (data, & bytes_read, 0); | |
2269 | data += bytes_read; | |
2270 | printf (_(" Set column to %lu\n"), uladv); | |
2271 | state_machine_regs.column = uladv; | |
2272 | break; | |
2273 | ||
2274 | case DW_LNS_negate_stmt: | |
2275 | adv = state_machine_regs.is_stmt; | |
2276 | adv = ! adv; | |
2277 | printf (_(" Set is_stmt to %d\n"), adv); | |
2278 | state_machine_regs.is_stmt = adv; | |
2279 | break; | |
2280 | ||
2281 | case DW_LNS_set_basic_block: | |
2282 | printf (_(" Set basic block\n")); | |
2283 | state_machine_regs.basic_block = 1; | |
2284 | break; | |
2285 | ||
2286 | case DW_LNS_const_add_pc: | |
2287 | uladv = (((255 - info.li_opcode_base) / info.li_line_range) | |
2288 | * info.li_min_insn_length); | |
2289 | state_machine_regs.address += uladv; | |
2290 | printf (_(" Advance PC by constant %lu to 0x%lx\n"), uladv, | |
2291 | state_machine_regs.address); | |
2292 | break; | |
2293 | ||
2294 | case DW_LNS_fixed_advance_pc: | |
2295 | uladv = byte_get (data, 2); | |
2296 | data += 2; | |
2297 | state_machine_regs.address += uladv; | |
2298 | printf (_(" Advance PC by fixed size amount %lu to 0x%lx\n"), | |
2299 | uladv, state_machine_regs.address); | |
2300 | break; | |
2301 | ||
2302 | case DW_LNS_set_prologue_end: | |
2303 | printf (_(" Set prologue_end to true\n")); | |
2304 | break; | |
2305 | ||
2306 | case DW_LNS_set_epilogue_begin: | |
2307 | printf (_(" Set epilogue_begin to true\n")); | |
2308 | break; | |
2309 | ||
2310 | case DW_LNS_set_isa: | |
2311 | uladv = read_leb128 (data, & bytes_read, 0); | |
2312 | data += bytes_read; | |
2313 | printf (_(" Set ISA to %lu\n"), uladv); | |
2314 | break; | |
2315 | ||
2316 | default: | |
2317 | printf (_(" Unknown opcode %d with operands: "), op_code); | |
2318 | ||
2319 | for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) | |
2320 | { | |
2321 | printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0), | |
2322 | i == 1 ? "" : ", "); | |
2323 | data += bytes_read; | |
2324 | } | |
2325 | putchar ('\n'); | |
2326 | break; | |
2327 | } | |
2328 | } | |
2329 | putchar ('\n'); | |
2330 | } | |
2331 | ||
2332 | return 1; | |
2333 | } | |
2334 | ||
6e3d6dc1 NC |
2335 | static debug_info * |
2336 | find_debug_info_for_offset (unsigned long offset) | |
2337 | { | |
2338 | unsigned int i; | |
2339 | ||
2340 | if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) | |
2341 | return NULL; | |
2342 | ||
2343 | for (i = 0; i < num_debug_info_entries; i++) | |
2344 | if (debug_information[i].cu_offset == offset) | |
2345 | return debug_information + i; | |
2346 | ||
2347 | return NULL; | |
2348 | } | |
2349 | ||
19e6b90e L |
2350 | static int |
2351 | display_debug_pubnames (struct dwarf_section *section, | |
2352 | void *file ATTRIBUTE_UNUSED) | |
2353 | { | |
2354 | DWARF2_Internal_PubNames pubnames; | |
2355 | unsigned char *start = section->start; | |
2356 | unsigned char *end = start + section->size; | |
2357 | ||
6e3d6dc1 NC |
2358 | /* It does not matter if this load fails, |
2359 | we test for that later on. */ | |
2360 | load_debug_info (file); | |
2361 | ||
19e6b90e L |
2362 | printf (_("Contents of the %s section:\n\n"), section->name); |
2363 | ||
2364 | while (start < end) | |
2365 | { | |
2366 | unsigned char *data; | |
2367 | unsigned long offset; | |
2368 | int offset_size, initial_length_size; | |
2369 | ||
2370 | data = start; | |
2371 | ||
2372 | pubnames.pn_length = byte_get (data, 4); | |
2373 | data += 4; | |
2374 | if (pubnames.pn_length == 0xffffffff) | |
2375 | { | |
2376 | pubnames.pn_length = byte_get (data, 8); | |
2377 | data += 8; | |
2378 | offset_size = 8; | |
2379 | initial_length_size = 12; | |
2380 | } | |
2381 | else | |
2382 | { | |
2383 | offset_size = 4; | |
2384 | initial_length_size = 4; | |
2385 | } | |
2386 | ||
2387 | pubnames.pn_version = byte_get (data, 2); | |
2388 | data += 2; | |
6e3d6dc1 | 2389 | |
19e6b90e L |
2390 | pubnames.pn_offset = byte_get (data, offset_size); |
2391 | data += offset_size; | |
6e3d6dc1 NC |
2392 | |
2393 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE | |
2394 | && num_debug_info_entries > 0 | |
2395 | && find_debug_info_for_offset (pubnames.pn_offset) == NULL) | |
2396 | warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), | |
2397 | pubnames.pn_offset, section->name); | |
2398 | ||
19e6b90e L |
2399 | pubnames.pn_size = byte_get (data, offset_size); |
2400 | data += offset_size; | |
2401 | ||
2402 | start += pubnames.pn_length + initial_length_size; | |
2403 | ||
2404 | if (pubnames.pn_version != 2 && pubnames.pn_version != 3) | |
2405 | { | |
2406 | static int warned = 0; | |
2407 | ||
2408 | if (! warned) | |
2409 | { | |
2410 | warn (_("Only DWARF 2 and 3 pubnames are currently supported\n")); | |
2411 | warned = 1; | |
2412 | } | |
2413 | ||
2414 | continue; | |
2415 | } | |
2416 | ||
2417 | printf (_(" Length: %ld\n"), | |
2418 | pubnames.pn_length); | |
2419 | printf (_(" Version: %d\n"), | |
2420 | pubnames.pn_version); | |
6e3d6dc1 | 2421 | printf (_(" Offset into .debug_info section: 0x%lx\n"), |
19e6b90e L |
2422 | pubnames.pn_offset); |
2423 | printf (_(" Size of area in .debug_info section: %ld\n"), | |
2424 | pubnames.pn_size); | |
2425 | ||
2426 | printf (_("\n Offset\tName\n")); | |
2427 | ||
2428 | do | |
2429 | { | |
2430 | offset = byte_get (data, offset_size); | |
2431 | ||
2432 | if (offset != 0) | |
2433 | { | |
2434 | data += offset_size; | |
2435 | printf (" %-6ld\t\t%s\n", offset, data); | |
2436 | data += strlen ((char *) data) + 1; | |
2437 | } | |
2438 | } | |
2439 | while (offset != 0); | |
2440 | } | |
2441 | ||
2442 | printf ("\n"); | |
2443 | return 1; | |
2444 | } | |
2445 | ||
2446 | static int | |
2447 | display_debug_macinfo (struct dwarf_section *section, | |
2448 | void *file ATTRIBUTE_UNUSED) | |
2449 | { | |
2450 | unsigned char *start = section->start; | |
2451 | unsigned char *end = start + section->size; | |
2452 | unsigned char *curr = start; | |
2453 | unsigned int bytes_read; | |
2454 | enum dwarf_macinfo_record_type op; | |
2455 | ||
2456 | printf (_("Contents of the %s section:\n\n"), section->name); | |
2457 | ||
2458 | while (curr < end) | |
2459 | { | |
2460 | unsigned int lineno; | |
2461 | const char *string; | |
2462 | ||
2463 | op = *curr; | |
2464 | curr++; | |
2465 | ||
2466 | switch (op) | |
2467 | { | |
2468 | case DW_MACINFO_start_file: | |
2469 | { | |
2470 | unsigned int filenum; | |
2471 | ||
2472 | lineno = read_leb128 (curr, & bytes_read, 0); | |
2473 | curr += bytes_read; | |
2474 | filenum = read_leb128 (curr, & bytes_read, 0); | |
2475 | curr += bytes_read; | |
2476 | ||
2477 | printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"), | |
2478 | lineno, filenum); | |
2479 | } | |
2480 | break; | |
2481 | ||
2482 | case DW_MACINFO_end_file: | |
2483 | printf (_(" DW_MACINFO_end_file\n")); | |
2484 | break; | |
2485 | ||
2486 | case DW_MACINFO_define: | |
2487 | lineno = read_leb128 (curr, & bytes_read, 0); | |
2488 | curr += bytes_read; | |
2489 | string = (char *) curr; | |
2490 | curr += strlen (string) + 1; | |
2491 | printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"), | |
2492 | lineno, string); | |
2493 | break; | |
2494 | ||
2495 | case DW_MACINFO_undef: | |
2496 | lineno = read_leb128 (curr, & bytes_read, 0); | |
2497 | curr += bytes_read; | |
2498 | string = (char *) curr; | |
2499 | curr += strlen (string) + 1; | |
2500 | printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"), | |
2501 | lineno, string); | |
2502 | break; | |
2503 | ||
2504 | case DW_MACINFO_vendor_ext: | |
2505 | { | |
2506 | unsigned int constant; | |
2507 | ||
2508 | constant = read_leb128 (curr, & bytes_read, 0); | |
2509 | curr += bytes_read; | |
2510 | string = (char *) curr; | |
2511 | curr += strlen (string) + 1; | |
2512 | printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"), | |
2513 | constant, string); | |
2514 | } | |
2515 | break; | |
2516 | } | |
2517 | } | |
2518 | ||
2519 | return 1; | |
2520 | } | |
2521 | ||
2522 | static int | |
2523 | display_debug_abbrev (struct dwarf_section *section, | |
2524 | void *file ATTRIBUTE_UNUSED) | |
2525 | { | |
2526 | abbrev_entry *entry; | |
2527 | unsigned char *start = section->start; | |
2528 | unsigned char *end = start + section->size; | |
2529 | ||
2530 | printf (_("Contents of the %s section:\n\n"), section->name); | |
2531 | ||
2532 | do | |
2533 | { | |
2534 | free_abbrevs (); | |
2535 | ||
2536 | start = process_abbrev_section (start, end); | |
2537 | ||
2538 | if (first_abbrev == NULL) | |
2539 | continue; | |
2540 | ||
2541 | printf (_(" Number TAG\n")); | |
2542 | ||
2543 | for (entry = first_abbrev; entry; entry = entry->next) | |
2544 | { | |
2545 | abbrev_attr *attr; | |
2546 | ||
2547 | printf (_(" %ld %s [%s]\n"), | |
2548 | entry->entry, | |
2549 | get_TAG_name (entry->tag), | |
2550 | entry->children ? _("has children") : _("no children")); | |
2551 | ||
2552 | for (attr = entry->first_attr; attr; attr = attr->next) | |
2553 | printf (_(" %-18s %s\n"), | |
2554 | get_AT_name (attr->attribute), | |
2555 | get_FORM_name (attr->form)); | |
2556 | } | |
2557 | } | |
2558 | while (start); | |
2559 | ||
2560 | printf ("\n"); | |
2561 | ||
2562 | return 1; | |
2563 | } | |
2564 | ||
2565 | static int | |
2566 | display_debug_loc (struct dwarf_section *section, void *file) | |
2567 | { | |
2568 | unsigned char *start = section->start; | |
2569 | unsigned char *section_end; | |
2570 | unsigned long bytes; | |
2571 | unsigned char *section_begin = start; | |
2572 | unsigned int num_loc_list = 0; | |
2573 | unsigned long last_offset = 0; | |
2574 | unsigned int first = 0; | |
2575 | unsigned int i; | |
2576 | unsigned int j; | |
2577 | int seen_first_offset = 0; | |
2578 | int use_debug_info = 1; | |
2579 | unsigned char *next; | |
2580 | ||
2581 | bytes = section->size; | |
2582 | section_end = start + bytes; | |
2583 | ||
2584 | if (bytes == 0) | |
2585 | { | |
2586 | printf (_("\nThe %s section is empty.\n"), section->name); | |
2587 | return 0; | |
2588 | } | |
2589 | ||
1febe64d NC |
2590 | if (load_debug_info (file) == 0) |
2591 | { | |
2592 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), | |
2593 | section->name); | |
2594 | return 0; | |
2595 | } | |
19e6b90e L |
2596 | |
2597 | /* Check the order of location list in .debug_info section. If | |
2598 | offsets of location lists are in the ascending order, we can | |
2599 | use `debug_information' directly. */ | |
2600 | for (i = 0; i < num_debug_info_entries; i++) | |
2601 | { | |
2602 | unsigned int num; | |
2603 | ||
2604 | num = debug_information [i].num_loc_offsets; | |
2605 | num_loc_list += num; | |
2606 | ||
2607 | /* Check if we can use `debug_information' directly. */ | |
2608 | if (use_debug_info && num != 0) | |
2609 | { | |
2610 | if (!seen_first_offset) | |
2611 | { | |
2612 | /* This is the first location list. */ | |
2613 | last_offset = debug_information [i].loc_offsets [0]; | |
2614 | first = i; | |
2615 | seen_first_offset = 1; | |
2616 | j = 1; | |
2617 | } | |
2618 | else | |
2619 | j = 0; | |
2620 | ||
2621 | for (; j < num; j++) | |
2622 | { | |
2623 | if (last_offset > | |
2624 | debug_information [i].loc_offsets [j]) | |
2625 | { | |
2626 | use_debug_info = 0; | |
2627 | break; | |
2628 | } | |
2629 | last_offset = debug_information [i].loc_offsets [j]; | |
2630 | } | |
2631 | } | |
2632 | } | |
2633 | ||
2634 | if (!use_debug_info) | |
2635 | /* FIXME: Should we handle this case? */ | |
2636 | error (_("Location lists in .debug_info section aren't in ascending order!\n")); | |
2637 | ||
2638 | if (!seen_first_offset) | |
2639 | error (_("No location lists in .debug_info section!\n")); | |
2640 | ||
bfe2612a | 2641 | /* DWARF sections under Mach-O have non-zero addresses. */ |
d4bfc77b AS |
2642 | if (debug_information [first].num_loc_offsets > 0 |
2643 | && debug_information [first].loc_offsets [0] != section->address) | |
19e6b90e L |
2644 | warn (_("Location lists in %s section start at 0x%lx\n"), |
2645 | section->name, debug_information [first].loc_offsets [0]); | |
2646 | ||
2647 | printf (_("Contents of the %s section:\n\n"), section->name); | |
2648 | printf (_(" Offset Begin End Expression\n")); | |
2649 | ||
2650 | seen_first_offset = 0; | |
2651 | for (i = first; i < num_debug_info_entries; i++) | |
2652 | { | |
2d9472a2 NC |
2653 | dwarf_vma begin; |
2654 | dwarf_vma end; | |
19e6b90e L |
2655 | unsigned short length; |
2656 | unsigned long offset; | |
2657 | unsigned int pointer_size; | |
2658 | unsigned long cu_offset; | |
2659 | unsigned long base_address; | |
2660 | int need_frame_base; | |
2661 | int has_frame_base; | |
2662 | ||
2663 | pointer_size = debug_information [i].pointer_size; | |
2664 | cu_offset = debug_information [i].cu_offset; | |
2665 | ||
2666 | for (j = 0; j < debug_information [i].num_loc_offsets; j++) | |
2667 | { | |
2668 | has_frame_base = debug_information [i].have_frame_base [j]; | |
bfe2612a L |
2669 | /* DWARF sections under Mach-O have non-zero addresses. */ |
2670 | offset = debug_information [i].loc_offsets [j] - section->address; | |
19e6b90e L |
2671 | next = section_begin + offset; |
2672 | base_address = debug_information [i].base_address; | |
2673 | ||
2674 | if (!seen_first_offset) | |
2675 | seen_first_offset = 1; | |
2676 | else | |
2677 | { | |
2678 | if (start < next) | |
2679 | warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"), | |
2680 | (long)(start - section_begin), (long)(next - section_begin)); | |
2681 | else if (start > next) | |
2682 | warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"), | |
2683 | (long)(start - section_begin), (long)(next - section_begin)); | |
2684 | } | |
2685 | start = next; | |
2686 | ||
2687 | if (offset >= bytes) | |
2688 | { | |
2689 | warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"), | |
2690 | offset); | |
2691 | continue; | |
2692 | } | |
2693 | ||
2694 | while (1) | |
2695 | { | |
2696 | if (start + 2 * pointer_size > section_end) | |
2697 | { | |
2698 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), | |
2699 | offset); | |
2700 | break; | |
2701 | } | |
2702 | ||
2d9472a2 NC |
2703 | /* Note: we use sign extension here in order to be sure that |
2704 | we can detect the -1 escape value. Sign extension into the | |
2705 | top 32 bits of a 32-bit address will not affect the values | |
2706 | that we display since we always show hex values, and always | |
2707 | the bottom 32-bits. */ | |
2708 | begin = byte_get_signed (start, pointer_size); | |
19e6b90e | 2709 | start += pointer_size; |
2d9472a2 | 2710 | end = byte_get_signed (start, pointer_size); |
19e6b90e L |
2711 | start += pointer_size; |
2712 | ||
2d9472a2 NC |
2713 | printf (" %8.8lx ", offset); |
2714 | ||
19e6b90e L |
2715 | if (begin == 0 && end == 0) |
2716 | { | |
2d9472a2 | 2717 | printf (_("<End of list>\n")); |
19e6b90e L |
2718 | break; |
2719 | } | |
2720 | ||
2721 | /* Check base address specifiers. */ | |
2d9472a2 | 2722 | if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) |
19e6b90e L |
2723 | { |
2724 | base_address = end; | |
2d9472a2 NC |
2725 | print_dwarf_vma (begin, pointer_size); |
2726 | print_dwarf_vma (end, pointer_size); | |
2727 | printf (_("(base address)\n")); | |
19e6b90e L |
2728 | continue; |
2729 | } | |
2730 | ||
2731 | if (start + 2 > section_end) | |
2732 | { | |
2733 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), | |
2734 | offset); | |
2735 | break; | |
2736 | } | |
2737 | ||
2738 | length = byte_get (start, 2); | |
2739 | start += 2; | |
2740 | ||
2741 | if (start + length > section_end) | |
2742 | { | |
2743 | warn (_("Location list starting at offset 0x%lx is not terminated.\n"), | |
2744 | offset); | |
2745 | break; | |
2746 | } | |
2747 | ||
2d9472a2 NC |
2748 | print_dwarf_vma (begin + base_address, pointer_size); |
2749 | print_dwarf_vma (end + base_address, pointer_size); | |
2750 | ||
2751 | putchar ('('); | |
19e6b90e L |
2752 | need_frame_base = decode_location_expression (start, |
2753 | pointer_size, | |
2754 | length, | |
2755 | cu_offset); | |
2756 | putchar (')'); | |
2757 | ||
2758 | if (need_frame_base && !has_frame_base) | |
2759 | printf (_(" [without DW_AT_frame_base]")); | |
2760 | ||
2761 | if (begin == end) | |
2762 | fputs (_(" (start == end)"), stdout); | |
2763 | else if (begin > end) | |
2764 | fputs (_(" (start > end)"), stdout); | |
2765 | ||
2766 | putchar ('\n'); | |
2767 | ||
2768 | start += length; | |
2769 | } | |
2770 | } | |
2771 | } | |
031cd65f NC |
2772 | |
2773 | if (start < section_end) | |
2774 | warn (_("There are %ld unused bytes at the end of section %s\n"), | |
0eb090cb | 2775 | (long) (section_end - start), section->name); |
19e6b90e L |
2776 | return 1; |
2777 | } | |
2778 | ||
2779 | static int | |
2780 | display_debug_str (struct dwarf_section *section, | |
2781 | void *file ATTRIBUTE_UNUSED) | |
2782 | { | |
2783 | unsigned char *start = section->start; | |
2784 | unsigned long bytes = section->size; | |
2785 | dwarf_vma addr = section->address; | |
2786 | ||
2787 | if (bytes == 0) | |
2788 | { | |
2789 | printf (_("\nThe %s section is empty.\n"), section->name); | |
2790 | return 0; | |
2791 | } | |
2792 | ||
2793 | printf (_("Contents of the %s section:\n\n"), section->name); | |
2794 | ||
2795 | while (bytes) | |
2796 | { | |
2797 | int j; | |
2798 | int k; | |
2799 | int lbytes; | |
2800 | ||
2801 | lbytes = (bytes > 16 ? 16 : bytes); | |
2802 | ||
2803 | printf (" 0x%8.8lx ", (unsigned long) addr); | |
2804 | ||
2805 | for (j = 0; j < 16; j++) | |
2806 | { | |
2807 | if (j < lbytes) | |
2808 | printf ("%2.2x", start[j]); | |
2809 | else | |
2810 | printf (" "); | |
2811 | ||
2812 | if ((j & 3) == 3) | |
2813 | printf (" "); | |
2814 | } | |
2815 | ||
2816 | for (j = 0; j < lbytes; j++) | |
2817 | { | |
2818 | k = start[j]; | |
2819 | if (k >= ' ' && k < 0x80) | |
2820 | printf ("%c", k); | |
2821 | else | |
2822 | printf ("."); | |
2823 | } | |
2824 | ||
2825 | putchar ('\n'); | |
2826 | ||
2827 | start += lbytes; | |
2828 | addr += lbytes; | |
2829 | bytes -= lbytes; | |
2830 | } | |
2831 | ||
2832 | putchar ('\n'); | |
2833 | ||
2834 | return 1; | |
2835 | } | |
2836 | ||
19e6b90e L |
2837 | static int |
2838 | display_debug_info (struct dwarf_section *section, void *file) | |
2839 | { | |
2840 | return process_debug_info (section, file, 0); | |
2841 | } | |
2842 | ||
2843 | ||
2844 | static int | |
2845 | display_debug_aranges (struct dwarf_section *section, | |
2846 | void *file ATTRIBUTE_UNUSED) | |
2847 | { | |
2848 | unsigned char *start = section->start; | |
2849 | unsigned char *end = start + section->size; | |
2850 | ||
2851 | printf (_("The section %s contains:\n\n"), section->name); | |
2852 | ||
6e3d6dc1 NC |
2853 | /* It does not matter if this load fails, |
2854 | we test for that later on. */ | |
2855 | load_debug_info (file); | |
2856 | ||
19e6b90e L |
2857 | while (start < end) |
2858 | { | |
2859 | unsigned char *hdrptr; | |
2860 | DWARF2_Internal_ARange arange; | |
2861 | unsigned char *ranges; | |
2d9472a2 NC |
2862 | dwarf_vma length; |
2863 | dwarf_vma address; | |
53b8873b | 2864 | unsigned char address_size; |
19e6b90e L |
2865 | int excess; |
2866 | int offset_size; | |
2867 | int initial_length_size; | |
2868 | ||
2869 | hdrptr = start; | |
2870 | ||
2871 | arange.ar_length = byte_get (hdrptr, 4); | |
2872 | hdrptr += 4; | |
2873 | ||
2874 | if (arange.ar_length == 0xffffffff) | |
2875 | { | |
2876 | arange.ar_length = byte_get (hdrptr, 8); | |
2877 | hdrptr += 8; | |
2878 | offset_size = 8; | |
2879 | initial_length_size = 12; | |
2880 | } | |
2881 | else | |
2882 | { | |
2883 | offset_size = 4; | |
2884 | initial_length_size = 4; | |
2885 | } | |
2886 | ||
2887 | arange.ar_version = byte_get (hdrptr, 2); | |
2888 | hdrptr += 2; | |
2889 | ||
2890 | arange.ar_info_offset = byte_get (hdrptr, offset_size); | |
2891 | hdrptr += offset_size; | |
2892 | ||
6e3d6dc1 NC |
2893 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE |
2894 | && num_debug_info_entries > 0 | |
2895 | && find_debug_info_for_offset (arange.ar_info_offset) == NULL) | |
2896 | warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), | |
2897 | arange.ar_info_offset, section->name); | |
2898 | ||
19e6b90e L |
2899 | arange.ar_pointer_size = byte_get (hdrptr, 1); |
2900 | hdrptr += 1; | |
2901 | ||
2902 | arange.ar_segment_size = byte_get (hdrptr, 1); | |
2903 | hdrptr += 1; | |
2904 | ||
2905 | if (arange.ar_version != 2 && arange.ar_version != 3) | |
2906 | { | |
2907 | warn (_("Only DWARF 2 and 3 aranges are currently supported.\n")); | |
2908 | break; | |
2909 | } | |
2910 | ||
2911 | printf (_(" Length: %ld\n"), arange.ar_length); | |
2912 | printf (_(" Version: %d\n"), arange.ar_version); | |
6e3d6dc1 | 2913 | printf (_(" Offset into .debug_info: 0x%lx\n"), arange.ar_info_offset); |
19e6b90e L |
2914 | printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size); |
2915 | printf (_(" Segment Size: %d\n"), arange.ar_segment_size); | |
2916 | ||
53b8873b NC |
2917 | address_size = arange.ar_pointer_size + arange.ar_segment_size; |
2918 | ||
2919 | /* The DWARF spec does not require that the address size be a power | |
2920 | of two, but we do. This will have to change if we ever encounter | |
2921 | an uneven architecture. */ | |
2922 | if ((address_size & (address_size - 1)) != 0) | |
2923 | { | |
2924 | warn (_("Pointer size + Segment size is not a power of two.\n")); | |
2925 | break; | |
2926 | } | |
2927 | ||
209c9a13 NC |
2928 | if (address_size > 4) |
2929 | printf (_("\n Address Length\n")); | |
2930 | else | |
2931 | printf (_("\n Address Length\n")); | |
19e6b90e L |
2932 | |
2933 | ranges = hdrptr; | |
2934 | ||
53b8873b NC |
2935 | /* Must pad to an alignment boundary that is twice the address size. */ |
2936 | excess = (hdrptr - start) % (2 * address_size); | |
19e6b90e | 2937 | if (excess) |
53b8873b | 2938 | ranges += (2 * address_size) - excess; |
19e6b90e | 2939 | |
1617e571 AM |
2940 | start += arange.ar_length + initial_length_size; |
2941 | ||
53b8873b | 2942 | while (ranges + 2 * address_size <= start) |
19e6b90e | 2943 | { |
53b8873b | 2944 | address = byte_get (ranges, address_size); |
19e6b90e | 2945 | |
53b8873b | 2946 | ranges += address_size; |
19e6b90e | 2947 | |
53b8873b | 2948 | length = byte_get (ranges, address_size); |
19e6b90e | 2949 | |
53b8873b | 2950 | ranges += address_size; |
19e6b90e | 2951 | |
2d9472a2 NC |
2952 | print_dwarf_vma (address, address_size); |
2953 | print_dwarf_vma (length, address_size); | |
2954 | putchar ('\n'); | |
19e6b90e | 2955 | } |
19e6b90e L |
2956 | } |
2957 | ||
2958 | printf ("\n"); | |
2959 | ||
2960 | return 1; | |
2961 | } | |
2962 | ||
2963 | static int | |
2964 | display_debug_ranges (struct dwarf_section *section, | |
2965 | void *file ATTRIBUTE_UNUSED) | |
2966 | { | |
2967 | unsigned char *start = section->start; | |
2968 | unsigned char *section_end; | |
2969 | unsigned long bytes; | |
2970 | unsigned char *section_begin = start; | |
2971 | unsigned int num_range_list = 0; | |
2972 | unsigned long last_offset = 0; | |
2973 | unsigned int first = 0; | |
2974 | unsigned int i; | |
2975 | unsigned int j; | |
2976 | int seen_first_offset = 0; | |
2977 | int use_debug_info = 1; | |
2978 | unsigned char *next; | |
2979 | ||
2980 | bytes = section->size; | |
2981 | section_end = start + bytes; | |
2982 | ||
2983 | if (bytes == 0) | |
2984 | { | |
2985 | printf (_("\nThe %s section is empty.\n"), section->name); | |
2986 | return 0; | |
2987 | } | |
2988 | ||
1febe64d NC |
2989 | if (load_debug_info (file) == 0) |
2990 | { | |
2991 | warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), | |
2992 | section->name); | |
2993 | return 0; | |
2994 | } | |
19e6b90e L |
2995 | |
2996 | /* Check the order of range list in .debug_info section. If | |
2997 | offsets of range lists are in the ascending order, we can | |
2998 | use `debug_information' directly. */ | |
2999 | for (i = 0; i < num_debug_info_entries; i++) | |
3000 | { | |
3001 | unsigned int num; | |
3002 | ||
3003 | num = debug_information [i].num_range_lists; | |
3004 | num_range_list += num; | |
3005 | ||
3006 | /* Check if we can use `debug_information' directly. */ | |
3007 | if (use_debug_info && num != 0) | |
3008 | { | |
3009 | if (!seen_first_offset) | |
3010 | { | |
3011 | /* This is the first range list. */ | |
3012 | last_offset = debug_information [i].range_lists [0]; | |
3013 | first = i; | |
3014 | seen_first_offset = 1; | |
3015 | j = 1; | |
3016 | } | |
3017 | else | |
3018 | j = 0; | |
3019 | ||
3020 | for (; j < num; j++) | |
3021 | { | |
3022 | if (last_offset > | |
3023 | debug_information [i].range_lists [j]) | |
3024 | { | |
3025 | use_debug_info = 0; | |
3026 | break; | |
3027 | } | |
3028 | last_offset = debug_information [i].range_lists [j]; | |
3029 | } | |
3030 | } | |
3031 | } | |
3032 | ||
3033 | if (!use_debug_info) | |
3034 | /* FIXME: Should we handle this case? */ | |
3035 | error (_("Range lists in .debug_info section aren't in ascending order!\n")); | |
3036 | ||
3037 | if (!seen_first_offset) | |
3038 | error (_("No range lists in .debug_info section!\n")); | |
3039 | ||
bfe2612a | 3040 | /* DWARF sections under Mach-O have non-zero addresses. */ |
d4bfc77b AS |
3041 | if (debug_information [first].num_range_lists > 0 |
3042 | && debug_information [first].range_lists [0] != section->address) | |
19e6b90e L |
3043 | warn (_("Range lists in %s section start at 0x%lx\n"), |
3044 | section->name, debug_information [first].range_lists [0]); | |
3045 | ||
3046 | printf (_("Contents of the %s section:\n\n"), section->name); | |
3047 | printf (_(" Offset Begin End\n")); | |
3048 | ||
3049 | seen_first_offset = 0; | |
3050 | for (i = first; i < num_debug_info_entries; i++) | |
3051 | { | |
2d9472a2 NC |
3052 | dwarf_vma begin; |
3053 | dwarf_vma end; | |
19e6b90e L |
3054 | unsigned long offset; |
3055 | unsigned int pointer_size; | |
3056 | unsigned long base_address; | |
3057 | ||
3058 | pointer_size = debug_information [i].pointer_size; | |
2d9472a2 | 3059 | |
19e6b90e L |
3060 | for (j = 0; j < debug_information [i].num_range_lists; j++) |
3061 | { | |
bfe2612a L |
3062 | /* DWARF sections under Mach-O have non-zero addresses. */ |
3063 | offset = debug_information [i].range_lists [j] - section->address; | |
19e6b90e L |
3064 | next = section_begin + offset; |
3065 | base_address = debug_information [i].base_address; | |
3066 | ||
3067 | if (!seen_first_offset) | |
3068 | seen_first_offset = 1; | |
3069 | else | |
3070 | { | |
3071 | if (start < next) | |
3072 | warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"), | |
3073 | (long)(start - section_begin), | |
3074 | (long)(next - section_begin), section->name); | |
3075 | else if (start > next) | |
3076 | warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"), | |
3077 | (long)(start - section_begin), | |
3078 | (long)(next - section_begin), section->name); | |
3079 | } | |
3080 | start = next; | |
3081 | ||
3082 | while (1) | |
3083 | { | |
2d9472a2 NC |
3084 | /* Note: we use sign extension here in order to be sure that |
3085 | we can detect the -1 escape value. Sign extension into the | |
3086 | top 32 bits of a 32-bit address will not affect the values | |
3087 | that we display since we always show hex values, and always | |
3088 | the bottom 32-bits. */ | |
3089 | begin = byte_get_signed (start, pointer_size); | |
19e6b90e | 3090 | start += pointer_size; |
2d9472a2 | 3091 | end = byte_get_signed (start, pointer_size); |
19e6b90e L |
3092 | start += pointer_size; |
3093 | ||
2d9472a2 NC |
3094 | printf (" %8.8lx ", offset); |
3095 | ||
19e6b90e L |
3096 | if (begin == 0 && end == 0) |
3097 | { | |
2d9472a2 | 3098 | printf (_("<End of list>\n")); |
19e6b90e L |
3099 | break; |
3100 | } | |
3101 | ||
2d9472a2 NC |
3102 | print_dwarf_vma (begin, pointer_size); |
3103 | print_dwarf_vma (end, pointer_size); | |
3104 | ||
19e6b90e | 3105 | /* Check base address specifiers. */ |
2d9472a2 | 3106 | if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1) |
19e6b90e L |
3107 | { |
3108 | base_address = end; | |
2d9472a2 | 3109 | printf ("(base address)\n"); |
19e6b90e L |
3110 | continue; |
3111 | } | |
3112 | ||
19e6b90e | 3113 | if (begin == end) |
2d9472a2 | 3114 | fputs (_("(start == end)"), stdout); |
19e6b90e | 3115 | else if (begin > end) |
2d9472a2 | 3116 | fputs (_("(start > end)"), stdout); |
19e6b90e L |
3117 | |
3118 | putchar ('\n'); | |
3119 | } | |
3120 | } | |
3121 | } | |
3122 | putchar ('\n'); | |
3123 | return 1; | |
3124 | } | |
3125 | ||
3126 | typedef struct Frame_Chunk | |
3127 | { | |
3128 | struct Frame_Chunk *next; | |
3129 | unsigned char *chunk_start; | |
3130 | int ncols; | |
3131 | /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */ | |
3132 | short int *col_type; | |
3133 | int *col_offset; | |
3134 | char *augmentation; | |
3135 | unsigned int code_factor; | |
3136 | int data_factor; | |
3137 | unsigned long pc_begin; | |
3138 | unsigned long pc_range; | |
3139 | int cfa_reg; | |
3140 | int cfa_offset; | |
3141 | int ra; | |
3142 | unsigned char fde_encoding; | |
3143 | unsigned char cfa_exp; | |
3144 | } | |
3145 | Frame_Chunk; | |
3146 | ||
3147 | /* A marker for a col_type that means this column was never referenced | |
3148 | in the frame info. */ | |
3149 | #define DW_CFA_unreferenced (-1) | |
3150 | ||
3151 | static void | |
3152 | frame_need_space (Frame_Chunk *fc, int reg) | |
3153 | { | |
3154 | int prev = fc->ncols; | |
3155 | ||
3156 | if (reg < fc->ncols) | |
3157 | return; | |
3158 | ||
3159 | fc->ncols = reg + 1; | |
3160 | fc->col_type = xcrealloc (fc->col_type, fc->ncols, sizeof (short int)); | |
3161 | fc->col_offset = xcrealloc (fc->col_offset, fc->ncols, sizeof (int)); | |
3162 | ||
3163 | while (prev < fc->ncols) | |
3164 | { | |
3165 | fc->col_type[prev] = DW_CFA_unreferenced; | |
3166 | fc->col_offset[prev] = 0; | |
3167 | prev++; | |
3168 | } | |
3169 | } | |
3170 | ||
2dc4cec1 L |
3171 | static const char *const dwarf_regnames_i386[] = |
3172 | { | |
3173 | "eax", "ecx", "edx", "ebx", | |
3174 | "esp", "ebp", "esi", "edi", | |
3175 | "eip", "eflags", NULL, | |
3176 | "st0", "st1", "st2", "st3", | |
3177 | "st4", "st5", "st6", "st7", | |
3178 | NULL, NULL, | |
3179 | "xmm0", "xmm1", "xmm2", "xmm3", | |
3180 | "xmm4", "xmm5", "xmm6", "xmm7", | |
3181 | "mm0", "mm1", "mm2", "mm3", | |
3182 | "mm4", "mm5", "mm6", "mm7", | |
3183 | "fcw", "fsw", "mxcsr", | |
3184 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, | |
3185 | "tr", "ldtr" | |
3186 | }; | |
3187 | ||
3188 | static const char *const dwarf_regnames_x86_64[] = | |
3189 | { | |
3190 | "rax", "rdx", "rcx", "rbx", | |
3191 | "rsi", "rdi", "rbp", "rsp", | |
3192 | "r8", "r9", "r10", "r11", | |
3193 | "r12", "r13", "r14", "r15", | |
3194 | "rip", | |
3195 | "xmm0", "xmm1", "xmm2", "xmm3", | |
3196 | "xmm4", "xmm5", "xmm6", "xmm7", | |
3197 | "xmm8", "xmm9", "xmm10", "xmm11", | |
3198 | "xmm12", "xmm13", "xmm14", "xmm15", | |
3199 | "st0", "st1", "st2", "st3", | |
3200 | "st4", "st5", "st6", "st7", | |
3201 | "mm0", "mm1", "mm2", "mm3", | |
3202 | "mm4", "mm5", "mm6", "mm7", | |
3203 | "rflags", | |
3204 | "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, | |
3205 | "fs.base", "gs.base", NULL, NULL, | |
3206 | "tr", "ldtr", | |
3207 | "mxcsr", "fcw", "fsw" | |
3208 | }; | |
3209 | ||
3210 | static const char *const *dwarf_regnames; | |
3211 | static unsigned int dwarf_regnames_count; | |
3212 | ||
3213 | void | |
3214 | init_dwarf_regnames (unsigned int e_machine) | |
3215 | { | |
3216 | switch (e_machine) | |
3217 | { | |
3218 | case EM_386: | |
3219 | case EM_486: | |
3220 | dwarf_regnames = dwarf_regnames_i386; | |
3221 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386); | |
3222 | break; | |
3223 | ||
3224 | case EM_X86_64: | |
3225 | dwarf_regnames = dwarf_regnames_x86_64; | |
3226 | dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64); | |
3227 | break; | |
3228 | ||
3229 | default: | |
3230 | break; | |
3231 | } | |
3232 | } | |
3233 | ||
3234 | static const char * | |
3235 | regname (unsigned int regno, int row) | |
3236 | { | |
3237 | static char reg[64]; | |
3238 | if (dwarf_regnames | |
3239 | && regno < dwarf_regnames_count | |
3240 | && dwarf_regnames [regno] != NULL) | |
3241 | { | |
3242 | if (row) | |
3243 | return dwarf_regnames [regno]; | |
3244 | snprintf (reg, sizeof (reg), "r%d (%s)", regno, | |
3245 | dwarf_regnames [regno]); | |
3246 | } | |
3247 | else | |
3248 | snprintf (reg, sizeof (reg), "r%d", regno); | |
3249 | return reg; | |
3250 | } | |
3251 | ||
19e6b90e L |
3252 | static void |
3253 | frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs) | |
3254 | { | |
3255 | int r; | |
3256 | char tmp[100]; | |
3257 | ||
3258 | if (*max_regs < fc->ncols) | |
3259 | *max_regs = fc->ncols; | |
3260 | ||
3261 | if (*need_col_headers) | |
3262 | { | |
2dc4cec1 L |
3263 | static const char *loc = " LOC"; |
3264 | ||
19e6b90e L |
3265 | *need_col_headers = 0; |
3266 | ||
2dc4cec1 | 3267 | printf ("%-*s CFA ", eh_addr_size * 2, loc); |
19e6b90e L |
3268 | |
3269 | for (r = 0; r < *max_regs; r++) | |
3270 | if (fc->col_type[r] != DW_CFA_unreferenced) | |
3271 | { | |
3272 | if (r == fc->ra) | |
2dc4cec1 | 3273 | printf ("ra "); |
19e6b90e | 3274 | else |
2dc4cec1 | 3275 | printf ("%-5s ", regname (r, 1)); |
19e6b90e L |
3276 | } |
3277 | ||
3278 | printf ("\n"); | |
3279 | } | |
3280 | ||
2dc4cec1 | 3281 | printf ("%0*lx ", eh_addr_size * 2, fc->pc_begin); |
19e6b90e L |
3282 | if (fc->cfa_exp) |
3283 | strcpy (tmp, "exp"); | |
3284 | else | |
2dc4cec1 | 3285 | sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), fc->cfa_offset); |
19e6b90e L |
3286 | printf ("%-8s ", tmp); |
3287 | ||
3288 | for (r = 0; r < fc->ncols; r++) | |
3289 | { | |
3290 | if (fc->col_type[r] != DW_CFA_unreferenced) | |
3291 | { | |
3292 | switch (fc->col_type[r]) | |
3293 | { | |
3294 | case DW_CFA_undefined: | |
3295 | strcpy (tmp, "u"); | |
3296 | break; | |
3297 | case DW_CFA_same_value: | |
3298 | strcpy (tmp, "s"); | |
3299 | break; | |
3300 | case DW_CFA_offset: | |
3301 | sprintf (tmp, "c%+d", fc->col_offset[r]); | |
3302 | break; | |
12eae2d3 JJ |
3303 | case DW_CFA_val_offset: |
3304 | sprintf (tmp, "v%+d", fc->col_offset[r]); | |
3305 | break; | |
19e6b90e | 3306 | case DW_CFA_register: |
2dc4cec1 | 3307 | sprintf (tmp, "%s", regname (fc->col_offset[r], 0)); |
19e6b90e L |
3308 | break; |
3309 | case DW_CFA_expression: | |
3310 | strcpy (tmp, "exp"); | |
3311 | break; | |
12eae2d3 JJ |
3312 | case DW_CFA_val_expression: |
3313 | strcpy (tmp, "vexp"); | |
3314 | break; | |
19e6b90e L |
3315 | default: |
3316 | strcpy (tmp, "n/a"); | |
3317 | break; | |
3318 | } | |
2dc4cec1 | 3319 | printf ("%-5s ", tmp); |
19e6b90e L |
3320 | } |
3321 | } | |
3322 | printf ("\n"); | |
3323 | } | |
3324 | ||
3325 | static int | |
3326 | size_of_encoded_value (int encoding) | |
3327 | { | |
3328 | switch (encoding & 0x7) | |
3329 | { | |
3330 | default: /* ??? */ | |
3331 | case 0: return eh_addr_size; | |
3332 | case 2: return 2; | |
3333 | case 3: return 4; | |
3334 | case 4: return 8; | |
3335 | } | |
3336 | } | |
3337 | ||
3338 | static dwarf_vma | |
3339 | get_encoded_value (unsigned char *data, int encoding) | |
3340 | { | |
3341 | int size = size_of_encoded_value (encoding); | |
53b8873b | 3342 | |
19e6b90e L |
3343 | if (encoding & DW_EH_PE_signed) |
3344 | return byte_get_signed (data, size); | |
3345 | else | |
3346 | return byte_get (data, size); | |
3347 | } | |
3348 | ||
3349 | #define GET(N) byte_get (start, N); start += N | |
3350 | #define LEB() read_leb128 (start, & length_return, 0); start += length_return | |
3351 | #define SLEB() read_leb128 (start, & length_return, 1); start += length_return | |
3352 | ||
3353 | static int | |
3354 | display_debug_frames (struct dwarf_section *section, | |
3355 | void *file ATTRIBUTE_UNUSED) | |
3356 | { | |
3357 | unsigned char *start = section->start; | |
3358 | unsigned char *end = start + section->size; | |
3359 | unsigned char *section_start = start; | |
3360 | Frame_Chunk *chunks = 0; | |
3361 | Frame_Chunk *remembered_state = 0; | |
3362 | Frame_Chunk *rs; | |
3363 | int is_eh = strcmp (section->name, ".eh_frame") == 0; | |
3364 | unsigned int length_return; | |
3365 | int max_regs = 0; | |
3366 | ||
3367 | printf (_("The section %s contains:\n"), section->name); | |
3368 | ||
3369 | while (start < end) | |
3370 | { | |
3371 | unsigned char *saved_start; | |
3372 | unsigned char *block_end; | |
3373 | unsigned long length; | |
3374 | unsigned long cie_id; | |
3375 | Frame_Chunk *fc; | |
3376 | Frame_Chunk *cie; | |
3377 | int need_col_headers = 1; | |
3378 | unsigned char *augmentation_data = NULL; | |
3379 | unsigned long augmentation_data_len = 0; | |
3380 | int encoded_ptr_size = eh_addr_size; | |
3381 | int offset_size; | |
3382 | int initial_length_size; | |
3383 | ||
3384 | saved_start = start; | |
3385 | length = byte_get (start, 4); start += 4; | |
3386 | ||
3387 | if (length == 0) | |
3388 | { | |
3389 | printf ("\n%08lx ZERO terminator\n\n", | |
3390 | (unsigned long)(saved_start - section_start)); | |
b758e50f | 3391 | continue; |
19e6b90e L |
3392 | } |
3393 | ||
3394 | if (length == 0xffffffff) | |
3395 | { | |
3396 | length = byte_get (start, 8); | |
3397 | start += 8; | |
3398 | offset_size = 8; | |
3399 | initial_length_size = 12; | |
3400 | } | |
3401 | else | |
3402 | { | |
3403 | offset_size = 4; | |
3404 | initial_length_size = 4; | |
3405 | } | |
3406 | ||
3407 | block_end = saved_start + length + initial_length_size; | |
53b8873b NC |
3408 | if (block_end > end) |
3409 | { | |
3410 | warn ("Invalid length %#08lx in FDE at %#08lx\n", | |
3411 | length, (unsigned long)(saved_start - section_start)); | |
3412 | block_end = end; | |
3413 | } | |
19e6b90e L |
3414 | cie_id = byte_get (start, offset_size); start += offset_size; |
3415 | ||
3416 | if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID)) | |
3417 | { | |
3418 | int version; | |
3419 | ||
3420 | fc = xmalloc (sizeof (Frame_Chunk)); | |
3421 | memset (fc, 0, sizeof (Frame_Chunk)); | |
3422 | ||
3423 | fc->next = chunks; | |
3424 | chunks = fc; | |
3425 | fc->chunk_start = saved_start; | |
3426 | fc->ncols = 0; | |
3427 | fc->col_type = xmalloc (sizeof (short int)); | |
3428 | fc->col_offset = xmalloc (sizeof (int)); | |
cc86f28f | 3429 | frame_need_space (fc, max_regs - 1); |
19e6b90e L |
3430 | |
3431 | version = *start++; | |
3432 | ||
3433 | fc->augmentation = (char *) start; | |
3434 | start = (unsigned char *) strchr ((char *) start, '\0') + 1; | |
3435 | ||
3436 | if (fc->augmentation[0] == 'z') | |
3437 | { | |
3438 | fc->code_factor = LEB (); | |
3439 | fc->data_factor = SLEB (); | |
3440 | if (version == 1) | |
3441 | { | |
3442 | fc->ra = GET (1); | |
3443 | } | |
3444 | else | |
3445 | { | |
3446 | fc->ra = LEB (); | |
3447 | } | |
3448 | augmentation_data_len = LEB (); | |
3449 | augmentation_data = start; | |
3450 | start += augmentation_data_len; | |
3451 | } | |
3452 | else if (strcmp (fc->augmentation, "eh") == 0) | |
3453 | { | |
3454 | start += eh_addr_size; | |
3455 | fc->code_factor = LEB (); | |
3456 | fc->data_factor = SLEB (); | |
3457 | if (version == 1) | |
3458 | { | |
3459 | fc->ra = GET (1); | |
3460 | } | |
3461 | else | |
3462 | { | |
3463 | fc->ra = LEB (); | |
3464 | } | |
3465 | } | |
3466 | else | |
3467 | { | |
3468 | fc->code_factor = LEB (); | |
3469 | fc->data_factor = SLEB (); | |
3470 | if (version == 1) | |
3471 | { | |
3472 | fc->ra = GET (1); | |
3473 | } | |
3474 | else | |
3475 | { | |
3476 | fc->ra = LEB (); | |
3477 | } | |
3478 | } | |
3479 | cie = fc; | |
3480 | ||
3481 | if (do_debug_frames_interp) | |
3482 | printf ("\n%08lx %08lx %08lx CIE \"%s\" cf=%d df=%d ra=%d\n", | |
3483 | (unsigned long)(saved_start - section_start), length, cie_id, | |
3484 | fc->augmentation, fc->code_factor, fc->data_factor, | |
3485 | fc->ra); | |
3486 | else | |
3487 | { | |
3488 | printf ("\n%08lx %08lx %08lx CIE\n", | |
3489 | (unsigned long)(saved_start - section_start), length, cie_id); | |
3490 | printf (" Version: %d\n", version); | |
3491 | printf (" Augmentation: \"%s\"\n", fc->augmentation); | |
3492 | printf (" Code alignment factor: %u\n", fc->code_factor); | |
3493 | printf (" Data alignment factor: %d\n", fc->data_factor); | |
3494 | printf (" Return address column: %d\n", fc->ra); | |
3495 | ||
3496 | if (augmentation_data_len) | |
3497 | { | |
3498 | unsigned long i; | |
3499 | printf (" Augmentation data: "); | |
3500 | for (i = 0; i < augmentation_data_len; ++i) | |
3501 | printf (" %02x", augmentation_data[i]); | |
3502 | putchar ('\n'); | |
3503 | } | |
3504 | putchar ('\n'); | |
3505 | } | |
3506 | ||
3507 | if (augmentation_data_len) | |
3508 | { | |
3509 | unsigned char *p, *q; | |
3510 | p = (unsigned char *) fc->augmentation + 1; | |
3511 | q = augmentation_data; | |
3512 | ||
3513 | while (1) | |
3514 | { | |
3515 | if (*p == 'L') | |
3516 | q++; | |
3517 | else if (*p == 'P') | |
3518 | q += 1 + size_of_encoded_value (*q); | |
3519 | else if (*p == 'R') | |
3520 | fc->fde_encoding = *q++; | |
3521 | else | |
3522 | break; | |
3523 | p++; | |
3524 | } | |
3525 | ||
3526 | if (fc->fde_encoding) | |
3527 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); | |
3528 | } | |
3529 | ||
3530 | frame_need_space (fc, fc->ra); | |
3531 | } | |
3532 | else | |
3533 | { | |
3534 | unsigned char *look_for; | |
3535 | static Frame_Chunk fde_fc; | |
3536 | ||
3537 | fc = & fde_fc; | |
3538 | memset (fc, 0, sizeof (Frame_Chunk)); | |
3539 | ||
3540 | look_for = is_eh ? start - 4 - cie_id : section_start + cie_id; | |
3541 | ||
3542 | for (cie = chunks; cie ; cie = cie->next) | |
3543 | if (cie->chunk_start == look_for) | |
3544 | break; | |
3545 | ||
3546 | if (!cie) | |
3547 | { | |
53b8873b | 3548 | warn ("Invalid CIE pointer %#08lx in FDE at %#08lx\n", |
1617e571 | 3549 | cie_id, (unsigned long)(saved_start - section_start)); |
19e6b90e L |
3550 | fc->ncols = 0; |
3551 | fc->col_type = xmalloc (sizeof (short int)); | |
3552 | fc->col_offset = xmalloc (sizeof (int)); | |
3553 | frame_need_space (fc, max_regs - 1); | |
3554 | cie = fc; | |
3555 | fc->augmentation = ""; | |
3556 | fc->fde_encoding = 0; | |
3557 | } | |
3558 | else | |
3559 | { | |
3560 | fc->ncols = cie->ncols; | |
3561 | fc->col_type = xcmalloc (fc->ncols, sizeof (short int)); | |
3562 | fc->col_offset = xcmalloc (fc->ncols, sizeof (int)); | |
3563 | memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int)); | |
3564 | memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int)); | |
3565 | fc->augmentation = cie->augmentation; | |
3566 | fc->code_factor = cie->code_factor; | |
3567 | fc->data_factor = cie->data_factor; | |
3568 | fc->cfa_reg = cie->cfa_reg; | |
3569 | fc->cfa_offset = cie->cfa_offset; | |
3570 | fc->ra = cie->ra; | |
cc86f28f | 3571 | frame_need_space (fc, max_regs - 1); |
19e6b90e L |
3572 | fc->fde_encoding = cie->fde_encoding; |
3573 | } | |
3574 | ||
3575 | if (fc->fde_encoding) | |
3576 | encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); | |
3577 | ||
3578 | fc->pc_begin = get_encoded_value (start, fc->fde_encoding); | |
41e92641 | 3579 | if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel) |
19e6b90e L |
3580 | fc->pc_begin += section->address + (start - section_start); |
3581 | start += encoded_ptr_size; | |
3582 | fc->pc_range = byte_get (start, encoded_ptr_size); | |
3583 | start += encoded_ptr_size; | |
3584 | ||
3585 | if (cie->augmentation[0] == 'z') | |
3586 | { | |
3587 | augmentation_data_len = LEB (); | |
3588 | augmentation_data = start; | |
3589 | start += augmentation_data_len; | |
3590 | } | |
3591 | ||
3592 | printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=%08lx..%08lx\n", | |
3593 | (unsigned long)(saved_start - section_start), length, cie_id, | |
3594 | (unsigned long)(cie->chunk_start - section_start), | |
3595 | fc->pc_begin, fc->pc_begin + fc->pc_range); | |
3596 | if (! do_debug_frames_interp && augmentation_data_len) | |
3597 | { | |
3598 | unsigned long i; | |
3599 | ||
3600 | printf (" Augmentation data: "); | |
3601 | for (i = 0; i < augmentation_data_len; ++i) | |
3602 | printf (" %02x", augmentation_data[i]); | |
3603 | putchar ('\n'); | |
3604 | putchar ('\n'); | |
3605 | } | |
3606 | } | |
3607 | ||
3608 | /* At this point, fc is the current chunk, cie (if any) is set, and | |
3609 | we're about to interpret instructions for the chunk. */ | |
3610 | /* ??? At present we need to do this always, since this sizes the | |
3611 | fc->col_type and fc->col_offset arrays, which we write into always. | |
3612 | We should probably split the interpreted and non-interpreted bits | |
3613 | into two different routines, since there's so much that doesn't | |
3614 | really overlap between them. */ | |
3615 | if (1 || do_debug_frames_interp) | |
3616 | { | |
3617 | /* Start by making a pass over the chunk, allocating storage | |
3618 | and taking note of what registers are used. */ | |
3619 | unsigned char *tmp = start; | |
3620 | ||
3621 | while (start < block_end) | |
3622 | { | |
3623 | unsigned op, opa; | |
3624 | unsigned long reg, tmp; | |
3625 | ||
3626 | op = *start++; | |
3627 | opa = op & 0x3f; | |
3628 | if (op & 0xc0) | |
3629 | op &= 0xc0; | |
3630 | ||
3631 | /* Warning: if you add any more cases to this switch, be | |
3632 | sure to add them to the corresponding switch below. */ | |
3633 | switch (op) | |
3634 | { | |
3635 | case DW_CFA_advance_loc: | |
3636 | break; | |
3637 | case DW_CFA_offset: | |
3638 | LEB (); | |
3639 | frame_need_space (fc, opa); | |
3640 | fc->col_type[opa] = DW_CFA_undefined; | |
3641 | break; | |
3642 | case DW_CFA_restore: | |
3643 | frame_need_space (fc, opa); | |
3644 | fc->col_type[opa] = DW_CFA_undefined; | |
3645 | break; | |
3646 | case DW_CFA_set_loc: | |
3647 | start += encoded_ptr_size; | |
3648 | break; | |
3649 | case DW_CFA_advance_loc1: | |
3650 | start += 1; | |
3651 | break; | |
3652 | case DW_CFA_advance_loc2: | |
3653 | start += 2; | |
3654 | break; | |
3655 | case DW_CFA_advance_loc4: | |
3656 | start += 4; | |
3657 | break; | |
3658 | case DW_CFA_offset_extended: | |
12eae2d3 | 3659 | case DW_CFA_val_offset: |
19e6b90e L |
3660 | reg = LEB (); LEB (); |
3661 | frame_need_space (fc, reg); | |
3662 | fc->col_type[reg] = DW_CFA_undefined; | |
3663 | break; | |
3664 | case DW_CFA_restore_extended: | |
3665 | reg = LEB (); | |
3666 | frame_need_space (fc, reg); | |
3667 | fc->col_type[reg] = DW_CFA_undefined; | |
3668 | break; | |
3669 | case DW_CFA_undefined: | |
3670 | reg = LEB (); | |
3671 | frame_need_space (fc, reg); | |
3672 | fc->col_type[reg] = DW_CFA_undefined; | |
3673 | break; | |
3674 | case DW_CFA_same_value: | |
3675 | reg = LEB (); | |
3676 | frame_need_space (fc, reg); | |
3677 | fc->col_type[reg] = DW_CFA_undefined; | |
3678 | break; | |
3679 | case DW_CFA_register: | |
3680 | reg = LEB (); LEB (); | |
3681 | frame_need_space (fc, reg); | |
3682 | fc->col_type[reg] = DW_CFA_undefined; | |
3683 | break; | |
3684 | case DW_CFA_def_cfa: | |
3685 | LEB (); LEB (); | |
3686 | break; | |
3687 | case DW_CFA_def_cfa_register: | |
3688 | LEB (); | |
3689 | break; | |
3690 | case DW_CFA_def_cfa_offset: | |
3691 | LEB (); | |
3692 | break; | |
3693 | case DW_CFA_def_cfa_expression: | |
3694 | tmp = LEB (); | |
3695 | start += tmp; | |
3696 | break; | |
3697 | case DW_CFA_expression: | |
12eae2d3 | 3698 | case DW_CFA_val_expression: |
19e6b90e L |
3699 | reg = LEB (); |
3700 | tmp = LEB (); | |
3701 | start += tmp; | |
3702 | frame_need_space (fc, reg); | |
3703 | fc->col_type[reg] = DW_CFA_undefined; | |
3704 | break; | |
3705 | case DW_CFA_offset_extended_sf: | |
12eae2d3 | 3706 | case DW_CFA_val_offset_sf: |
19e6b90e L |
3707 | reg = LEB (); SLEB (); |
3708 | frame_need_space (fc, reg); | |
3709 | fc->col_type[reg] = DW_CFA_undefined; | |
3710 | break; | |
3711 | case DW_CFA_def_cfa_sf: | |
3712 | LEB (); SLEB (); | |
3713 | break; | |
3714 | case DW_CFA_def_cfa_offset_sf: | |
3715 | SLEB (); | |
3716 | break; | |
3717 | case DW_CFA_MIPS_advance_loc8: | |
3718 | start += 8; | |
3719 | break; | |
3720 | case DW_CFA_GNU_args_size: | |
3721 | LEB (); | |
3722 | break; | |
3723 | case DW_CFA_GNU_negative_offset_extended: | |
3724 | reg = LEB (); LEB (); | |
3725 | frame_need_space (fc, reg); | |
3726 | fc->col_type[reg] = DW_CFA_undefined; | |
3727 | ||
3728 | default: | |
3729 | break; | |
3730 | } | |
3731 | } | |
3732 | start = tmp; | |
3733 | } | |
3734 | ||
3735 | /* Now we know what registers are used, make a second pass over | |
3736 | the chunk, this time actually printing out the info. */ | |
3737 | ||
3738 | while (start < block_end) | |
3739 | { | |
3740 | unsigned op, opa; | |
3741 | unsigned long ul, reg, roffs; | |
3742 | long l, ofs; | |
3743 | dwarf_vma vma; | |
3744 | ||
3745 | op = *start++; | |
3746 | opa = op & 0x3f; | |
3747 | if (op & 0xc0) | |
3748 | op &= 0xc0; | |
3749 | ||
3750 | /* Warning: if you add any more cases to this switch, be | |
3751 | sure to add them to the corresponding switch above. */ | |
3752 | switch (op) | |
3753 | { | |
3754 | case DW_CFA_advance_loc: | |
3755 | if (do_debug_frames_interp) | |
3756 | frame_display_row (fc, &need_col_headers, &max_regs); | |
3757 | else | |
3758 | printf (" DW_CFA_advance_loc: %d to %08lx\n", | |
3759 | opa * fc->code_factor, | |
3760 | fc->pc_begin + opa * fc->code_factor); | |
3761 | fc->pc_begin += opa * fc->code_factor; | |
3762 | break; | |
3763 | ||
3764 | case DW_CFA_offset: | |
3765 | roffs = LEB (); | |
3766 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
3767 | printf (" DW_CFA_offset: %s at cfa%+ld\n", |
3768 | regname (opa, 0), roffs * fc->data_factor); | |
19e6b90e L |
3769 | fc->col_type[opa] = DW_CFA_offset; |
3770 | fc->col_offset[opa] = roffs * fc->data_factor; | |
3771 | break; | |
3772 | ||
3773 | case DW_CFA_restore: | |
3774 | if (! do_debug_frames_interp) | |
2dc4cec1 | 3775 | printf (" DW_CFA_restore: %s\n", regname (opa, 0)); |
19e6b90e L |
3776 | fc->col_type[opa] = cie->col_type[opa]; |
3777 | fc->col_offset[opa] = cie->col_offset[opa]; | |
3778 | break; | |
3779 | ||
3780 | case DW_CFA_set_loc: | |
3781 | vma = get_encoded_value (start, fc->fde_encoding); | |
41e92641 | 3782 | if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel) |
19e6b90e L |
3783 | vma += section->address + (start - section_start); |
3784 | start += encoded_ptr_size; | |
3785 | if (do_debug_frames_interp) | |
3786 | frame_display_row (fc, &need_col_headers, &max_regs); | |
3787 | else | |
3788 | printf (" DW_CFA_set_loc: %08lx\n", (unsigned long)vma); | |
3789 | fc->pc_begin = vma; | |
3790 | break; | |
3791 | ||
3792 | case DW_CFA_advance_loc1: | |
3793 | ofs = byte_get (start, 1); start += 1; | |
3794 | if (do_debug_frames_interp) | |
3795 | frame_display_row (fc, &need_col_headers, &max_regs); | |
3796 | else | |
3797 | printf (" DW_CFA_advance_loc1: %ld to %08lx\n", | |
3798 | ofs * fc->code_factor, | |
3799 | fc->pc_begin + ofs * fc->code_factor); | |
3800 | fc->pc_begin += ofs * fc->code_factor; | |
3801 | break; | |
3802 | ||
3803 | case DW_CFA_advance_loc2: | |
3804 | ofs = byte_get (start, 2); start += 2; | |
3805 | if (do_debug_frames_interp) | |
3806 | frame_display_row (fc, &need_col_headers, &max_regs); | |
3807 | else | |
3808 | printf (" DW_CFA_advance_loc2: %ld to %08lx\n", | |
3809 | ofs * fc->code_factor, | |
3810 | fc->pc_begin + ofs * fc->code_factor); | |
3811 | fc->pc_begin += ofs * fc->code_factor; | |
3812 | break; | |
3813 | ||
3814 | case DW_CFA_advance_loc4: | |
3815 | ofs = byte_get (start, 4); start += 4; | |
3816 | if (do_debug_frames_interp) | |
3817 | frame_display_row (fc, &need_col_headers, &max_regs); | |
3818 | else | |
3819 | printf (" DW_CFA_advance_loc4: %ld to %08lx\n", | |
3820 | ofs * fc->code_factor, | |
3821 | fc->pc_begin + ofs * fc->code_factor); | |
3822 | fc->pc_begin += ofs * fc->code_factor; | |
3823 | break; | |
3824 | ||
3825 | case DW_CFA_offset_extended: | |
3826 | reg = LEB (); | |
3827 | roffs = LEB (); | |
3828 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
3829 | printf (" DW_CFA_offset_extended: %s at cfa%+ld\n", |
3830 | regname (reg, 0), roffs * fc->data_factor); | |
19e6b90e L |
3831 | fc->col_type[reg] = DW_CFA_offset; |
3832 | fc->col_offset[reg] = roffs * fc->data_factor; | |
3833 | break; | |
3834 | ||
12eae2d3 JJ |
3835 | case DW_CFA_val_offset: |
3836 | reg = LEB (); | |
3837 | roffs = LEB (); | |
3838 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
3839 | printf (" DW_CFA_val_offset: %s at cfa%+ld\n", |
3840 | regname (reg, 0), roffs * fc->data_factor); | |
12eae2d3 JJ |
3841 | fc->col_type[reg] = DW_CFA_val_offset; |
3842 | fc->col_offset[reg] = roffs * fc->data_factor; | |
3843 | break; | |
3844 | ||
19e6b90e L |
3845 | case DW_CFA_restore_extended: |
3846 | reg = LEB (); | |
3847 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
3848 | printf (" DW_CFA_restore_extended: %s\n", |
3849 | regname (reg, 0)); | |
19e6b90e L |
3850 | fc->col_type[reg] = cie->col_type[reg]; |
3851 | fc->col_offset[reg] = cie->col_offset[reg]; | |
3852 | break; | |
3853 | ||
3854 | case DW_CFA_undefined: | |
3855 | reg = LEB (); | |
3856 | if (! do_debug_frames_interp) | |
2dc4cec1 | 3857 | printf (" DW_CFA_undefined: %s\n", regname (reg, 0)); |
19e6b90e L |
3858 | fc->col_type[reg] = DW_CFA_undefined; |
3859 | fc->col_offset[reg] = 0; | |
3860 | break; | |
3861 | ||
3862 | case DW_CFA_same_value: | |
3863 | reg = LEB (); | |
3864 | if (! do_debug_frames_interp) | |
2dc4cec1 | 3865 | printf (" DW_CFA_same_value: %s\n", regname (reg, 0)); |
19e6b90e L |
3866 | fc->col_type[reg] = DW_CFA_same_value; |
3867 | fc->col_offset[reg] = 0; | |
3868 | break; | |
3869 | ||
3870 | case DW_CFA_register: | |
3871 | reg = LEB (); | |
3872 | roffs = LEB (); | |
3873 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
3874 | { |
3875 | printf (" DW_CFA_register: %s in ", | |
3876 | regname (reg, 0)); | |
3877 | puts (regname (roffs, 0)); | |
3878 | } | |
19e6b90e L |
3879 | fc->col_type[reg] = DW_CFA_register; |
3880 | fc->col_offset[reg] = roffs; | |
3881 | break; | |
3882 | ||
3883 | case DW_CFA_remember_state: | |
3884 | if (! do_debug_frames_interp) | |
3885 | printf (" DW_CFA_remember_state\n"); | |
3886 | rs = xmalloc (sizeof (Frame_Chunk)); | |
3887 | rs->ncols = fc->ncols; | |
3888 | rs->col_type = xcmalloc (rs->ncols, sizeof (short int)); | |
3889 | rs->col_offset = xcmalloc (rs->ncols, sizeof (int)); | |
3890 | memcpy (rs->col_type, fc->col_type, rs->ncols); | |
3891 | memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int)); | |
3892 | rs->next = remembered_state; | |
3893 | remembered_state = rs; | |
3894 | break; | |
3895 | ||
3896 | case DW_CFA_restore_state: | |
3897 | if (! do_debug_frames_interp) | |
3898 | printf (" DW_CFA_restore_state\n"); | |
3899 | rs = remembered_state; | |
3900 | if (rs) | |
3901 | { | |
3902 | remembered_state = rs->next; | |
cc86f28f | 3903 | frame_need_space (fc, rs->ncols - 1); |
19e6b90e L |
3904 | memcpy (fc->col_type, rs->col_type, rs->ncols); |
3905 | memcpy (fc->col_offset, rs->col_offset, | |
3906 | rs->ncols * sizeof (int)); | |
3907 | free (rs->col_type); | |
3908 | free (rs->col_offset); | |
3909 | free (rs); | |
3910 | } | |
3911 | else if (do_debug_frames_interp) | |
3912 | printf ("Mismatched DW_CFA_restore_state\n"); | |
3913 | break; | |
3914 | ||
3915 | case DW_CFA_def_cfa: | |
3916 | fc->cfa_reg = LEB (); | |
3917 | fc->cfa_offset = LEB (); | |
3918 | fc->cfa_exp = 0; | |
3919 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
3920 | printf (" DW_CFA_def_cfa: %s ofs %d\n", |
3921 | regname (fc->cfa_reg, 0), fc->cfa_offset); | |
19e6b90e L |
3922 | break; |
3923 | ||
3924 | case DW_CFA_def_cfa_register: | |
3925 | fc->cfa_reg = LEB (); | |
3926 | fc->cfa_exp = 0; | |
3927 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
3928 | printf (" DW_CFA_def_cfa_register: %s\n", |
3929 | regname (fc->cfa_reg, 0)); | |
19e6b90e L |
3930 | break; |
3931 | ||
3932 | case DW_CFA_def_cfa_offset: | |
3933 | fc->cfa_offset = LEB (); | |
3934 | if (! do_debug_frames_interp) | |
3935 | printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset); | |
3936 | break; | |
3937 | ||
3938 | case DW_CFA_nop: | |
3939 | if (! do_debug_frames_interp) | |
3940 | printf (" DW_CFA_nop\n"); | |
3941 | break; | |
3942 | ||
3943 | case DW_CFA_def_cfa_expression: | |
3944 | ul = LEB (); | |
3945 | if (! do_debug_frames_interp) | |
3946 | { | |
3947 | printf (" DW_CFA_def_cfa_expression ("); | |
3948 | decode_location_expression (start, eh_addr_size, ul, 0); | |
3949 | printf (")\n"); | |
3950 | } | |
3951 | fc->cfa_exp = 1; | |
3952 | start += ul; | |
3953 | break; | |
3954 | ||
3955 | case DW_CFA_expression: | |
3956 | reg = LEB (); | |
3957 | ul = LEB (); | |
3958 | if (! do_debug_frames_interp) | |
3959 | { | |
2dc4cec1 L |
3960 | printf (" DW_CFA_expression: %s (", |
3961 | regname (reg, 0)); | |
3962 | decode_location_expression (start, eh_addr_size, | |
3963 | ul, 0); | |
19e6b90e L |
3964 | printf (")\n"); |
3965 | } | |
3966 | fc->col_type[reg] = DW_CFA_expression; | |
3967 | start += ul; | |
3968 | break; | |
3969 | ||
12eae2d3 JJ |
3970 | case DW_CFA_val_expression: |
3971 | reg = LEB (); | |
3972 | ul = LEB (); | |
3973 | if (! do_debug_frames_interp) | |
3974 | { | |
2dc4cec1 L |
3975 | printf (" DW_CFA_val_expression: %s (", |
3976 | regname (reg, 0)); | |
12eae2d3 JJ |
3977 | decode_location_expression (start, eh_addr_size, ul, 0); |
3978 | printf (")\n"); | |
3979 | } | |
3980 | fc->col_type[reg] = DW_CFA_val_expression; | |
3981 | start += ul; | |
3982 | break; | |
3983 | ||
19e6b90e L |
3984 | case DW_CFA_offset_extended_sf: |
3985 | reg = LEB (); | |
3986 | l = SLEB (); | |
3987 | frame_need_space (fc, reg); | |
3988 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
3989 | printf (" DW_CFA_offset_extended_sf: %s at cfa%+ld\n", |
3990 | regname (reg, 0), l * fc->data_factor); | |
19e6b90e L |
3991 | fc->col_type[reg] = DW_CFA_offset; |
3992 | fc->col_offset[reg] = l * fc->data_factor; | |
3993 | break; | |
3994 | ||
12eae2d3 JJ |
3995 | case DW_CFA_val_offset_sf: |
3996 | reg = LEB (); | |
3997 | l = SLEB (); | |
3998 | frame_need_space (fc, reg); | |
3999 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4000 | printf (" DW_CFA_val_offset_sf: %s at cfa%+ld\n", |
4001 | regname (reg, 0), l * fc->data_factor); | |
12eae2d3 JJ |
4002 | fc->col_type[reg] = DW_CFA_val_offset; |
4003 | fc->col_offset[reg] = l * fc->data_factor; | |
4004 | break; | |
4005 | ||
19e6b90e L |
4006 | case DW_CFA_def_cfa_sf: |
4007 | fc->cfa_reg = LEB (); | |
4008 | fc->cfa_offset = SLEB (); | |
4009 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; | |
4010 | fc->cfa_exp = 0; | |
4011 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4012 | printf (" DW_CFA_def_cfa_sf: %s ofs %d\n", |
4013 | regname (fc->cfa_reg, 0), fc->cfa_offset); | |
19e6b90e L |
4014 | break; |
4015 | ||
4016 | case DW_CFA_def_cfa_offset_sf: | |
4017 | fc->cfa_offset = SLEB (); | |
4018 | fc->cfa_offset = fc->cfa_offset * fc->data_factor; | |
4019 | if (! do_debug_frames_interp) | |
4020 | printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset); | |
4021 | break; | |
4022 | ||
4023 | case DW_CFA_MIPS_advance_loc8: | |
4024 | ofs = byte_get (start, 8); start += 8; | |
4025 | if (do_debug_frames_interp) | |
4026 | frame_display_row (fc, &need_col_headers, &max_regs); | |
4027 | else | |
4028 | printf (" DW_CFA_MIPS_advance_loc8: %ld to %08lx\n", | |
4029 | ofs * fc->code_factor, | |
4030 | fc->pc_begin + ofs * fc->code_factor); | |
4031 | fc->pc_begin += ofs * fc->code_factor; | |
4032 | break; | |
4033 | ||
4034 | case DW_CFA_GNU_window_save: | |
4035 | if (! do_debug_frames_interp) | |
4036 | printf (" DW_CFA_GNU_window_save\n"); | |
4037 | break; | |
4038 | ||
4039 | case DW_CFA_GNU_args_size: | |
4040 | ul = LEB (); | |
4041 | if (! do_debug_frames_interp) | |
4042 | printf (" DW_CFA_GNU_args_size: %ld\n", ul); | |
4043 | break; | |
4044 | ||
4045 | case DW_CFA_GNU_negative_offset_extended: | |
4046 | reg = LEB (); | |
4047 | l = - LEB (); | |
4048 | frame_need_space (fc, reg); | |
4049 | if (! do_debug_frames_interp) | |
2dc4cec1 L |
4050 | printf (" DW_CFA_GNU_negative_offset_extended: %s at cfa%+ld\n", |
4051 | regname (reg, 0), l * fc->data_factor); | |
19e6b90e L |
4052 | fc->col_type[reg] = DW_CFA_offset; |
4053 | fc->col_offset[reg] = l * fc->data_factor; | |
4054 | break; | |
4055 | ||
4056 | default: | |
53b8873b NC |
4057 | if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user) |
4058 | printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op); | |
4059 | else | |
4060 | warn (_("unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op); | |
19e6b90e L |
4061 | start = block_end; |
4062 | } | |
4063 | } | |
4064 | ||
4065 | if (do_debug_frames_interp) | |
4066 | frame_display_row (fc, &need_col_headers, &max_regs); | |
4067 | ||
4068 | start = block_end; | |
4069 | } | |
4070 | ||
4071 | printf ("\n"); | |
4072 | ||
4073 | return 1; | |
4074 | } | |
4075 | ||
4076 | #undef GET | |
4077 | #undef LEB | |
4078 | #undef SLEB | |
4079 | ||
4080 | static int | |
4081 | display_debug_not_supported (struct dwarf_section *section, | |
4082 | void *file ATTRIBUTE_UNUSED) | |
4083 | { | |
4084 | printf (_("Displaying the debug contents of section %s is not yet supported.\n"), | |
4085 | section->name); | |
4086 | ||
4087 | return 1; | |
4088 | } | |
4089 | ||
4090 | void * | |
4091 | cmalloc (size_t nmemb, size_t size) | |
4092 | { | |
4093 | /* Check for overflow. */ | |
4094 | if (nmemb >= ~(size_t) 0 / size) | |
4095 | return NULL; | |
4096 | else | |
4097 | return malloc (nmemb * size); | |
4098 | } | |
4099 | ||
4100 | void * | |
4101 | xcmalloc (size_t nmemb, size_t size) | |
4102 | { | |
4103 | /* Check for overflow. */ | |
4104 | if (nmemb >= ~(size_t) 0 / size) | |
4105 | return NULL; | |
4106 | else | |
4107 | return xmalloc (nmemb * size); | |
4108 | } | |
4109 | ||
4110 | void * | |
4111 | xcrealloc (void *ptr, size_t nmemb, size_t size) | |
4112 | { | |
4113 | /* Check for overflow. */ | |
4114 | if (nmemb >= ~(size_t) 0 / size) | |
4115 | return NULL; | |
4116 | else | |
4117 | return xrealloc (ptr, nmemb * size); | |
4118 | } | |
4119 | ||
4120 | void | |
4121 | error (const char *message, ...) | |
4122 | { | |
4123 | va_list args; | |
4124 | ||
4125 | va_start (args, message); | |
4126 | fprintf (stderr, _("%s: Error: "), program_name); | |
4127 | vfprintf (stderr, message, args); | |
4128 | va_end (args); | |
4129 | } | |
4130 | ||
4131 | void | |
4132 | warn (const char *message, ...) | |
4133 | { | |
4134 | va_list args; | |
4135 | ||
4136 | va_start (args, message); | |
4137 | fprintf (stderr, _("%s: Warning: "), program_name); | |
4138 | vfprintf (stderr, message, args); | |
4139 | va_end (args); | |
4140 | } | |
4141 | ||
4142 | void | |
4143 | free_debug_memory (void) | |
4144 | { | |
4145 | enum dwarf_section_display_enum i; | |
4146 | ||
4147 | free_abbrevs (); | |
4148 | ||
4149 | for (i = 0; i < max; i++) | |
4150 | free_debug_section (i); | |
4151 | ||
cc86f28f | 4152 | if (debug_information != NULL) |
19e6b90e | 4153 | { |
cc86f28f | 4154 | if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE) |
19e6b90e | 4155 | { |
cc86f28f | 4156 | for (i = 0; i < num_debug_info_entries; i++) |
19e6b90e | 4157 | { |
cc86f28f NC |
4158 | if (!debug_information [i].max_loc_offsets) |
4159 | { | |
4160 | free (debug_information [i].loc_offsets); | |
4161 | free (debug_information [i].have_frame_base); | |
4162 | } | |
4163 | if (!debug_information [i].max_range_lists) | |
4164 | free (debug_information [i].range_lists); | |
19e6b90e | 4165 | } |
19e6b90e | 4166 | } |
cc86f28f | 4167 | |
19e6b90e L |
4168 | free (debug_information); |
4169 | debug_information = NULL; | |
4170 | num_debug_info_entries = 0; | |
4171 | } | |
19e6b90e L |
4172 | } |
4173 | ||
4174 | struct dwarf_section_display debug_displays[] = | |
4175 | { | |
4176 | { { ".debug_abbrev", NULL, 0, 0 }, | |
4177 | display_debug_abbrev, 0, 0 }, | |
4178 | { { ".debug_aranges", NULL, 0, 0 }, | |
4179 | display_debug_aranges, 0, 0 }, | |
4180 | { { ".debug_frame", NULL, 0, 0 }, | |
4181 | display_debug_frames, 1, 0 }, | |
4182 | { { ".debug_info", NULL, 0, 0 }, | |
4183 | display_debug_info, 1, 0 }, | |
4184 | { { ".debug_line", NULL, 0, 0 }, | |
4185 | display_debug_lines, 0, 0 }, | |
4186 | { { ".debug_pubnames", NULL, 0, 0 }, | |
4187 | display_debug_pubnames, 0, 0 }, | |
4188 | { { ".eh_frame", NULL, 0, 0 }, | |
4189 | display_debug_frames, 1, 1 }, | |
4190 | { { ".debug_macinfo", NULL, 0, 0 }, | |
4191 | display_debug_macinfo, 0, 0 }, | |
4192 | { { ".debug_str", NULL, 0, 0 }, | |
4193 | display_debug_str, 0, 0 }, | |
4194 | { { ".debug_loc", NULL, 0, 0 }, | |
4195 | display_debug_loc, 0, 0 }, | |
4196 | { { ".debug_pubtypes", NULL, 0, 0 }, | |
4197 | display_debug_pubnames, 0, 0 }, | |
4198 | { { ".debug_ranges", NULL, 0, 0 }, | |
4199 | display_debug_ranges, 0, 0 }, | |
4200 | { { ".debug_static_func", NULL, 0, 0 }, | |
4201 | display_debug_not_supported, 0, 0 }, | |
4202 | { { ".debug_static_vars", NULL, 0, 0 }, | |
4203 | display_debug_not_supported, 0, 0 }, | |
4204 | { { ".debug_types", NULL, 0, 0 }, | |
4205 | display_debug_not_supported, 0, 0 }, | |
4206 | { { ".debug_weaknames", NULL, 0, 0 }, | |
4207 | display_debug_not_supported, 0, 0 } | |
4208 | }; |