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* binutils-all/objcopy.exp (strip_test, strip_executable):
[deliverable/binutils-gdb.git] / binutils / dwarf.c
1 /* dwarf.c -- display DWARF contents of a BFD binary file
2 Copyright 2005, 2006, 2007, 2008, 2009, 2010, 2011
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
9 the Free Software Foundation; either version 3 of the License, or
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
22 #include "sysdep.h"
23 #include "libiberty.h"
24 #include "bfd.h"
25 #include "bfd_stdint.h"
26 #include "bucomm.h"
27 #include "elfcomm.h"
28 #include "elf/common.h"
29 #include "dwarf2.h"
30 #include "dwarf.h"
31
32 static const char *regname (unsigned int regno, int row);
33
34 static int have_frame_base;
35 static int need_base_address;
36
37 static unsigned int last_pointer_size = 0;
38 static int warned_about_missing_comp_units = FALSE;
39
40 static unsigned int num_debug_info_entries = 0;
41 static debug_info *debug_information = NULL;
42 /* Special value for num_debug_info_entries to indicate
43 that the .debug_info section could not be loaded/parsed. */
44 #define DEBUG_INFO_UNAVAILABLE (unsigned int) -1
45
46 int eh_addr_size;
47
48 int do_debug_info;
49 int do_debug_abbrevs;
50 int do_debug_lines;
51 int do_debug_pubnames;
52 int do_debug_pubtypes;
53 int do_debug_aranges;
54 int do_debug_ranges;
55 int do_debug_frames;
56 int do_debug_frames_interp;
57 int do_debug_macinfo;
58 int do_debug_str;
59 int do_debug_loc;
60 int do_gdb_index;
61 int do_trace_info;
62 int do_trace_abbrevs;
63 int do_trace_aranges;
64 int do_wide;
65
66 int dwarf_cutoff_level = -1;
67 unsigned long dwarf_start_die;
68
69 /* Values for do_debug_lines. */
70 #define FLAG_DEBUG_LINES_RAW 1
71 #define FLAG_DEBUG_LINES_DECODED 2
72
73 static int
74 size_of_encoded_value (int encoding)
75 {
76 switch (encoding & 0x7)
77 {
78 default: /* ??? */
79 case 0: return eh_addr_size;
80 case 2: return 2;
81 case 3: return 4;
82 case 4: return 8;
83 }
84 }
85
86 static dwarf_vma
87 get_encoded_value (unsigned char *data,
88 int encoding,
89 struct dwarf_section *section)
90 {
91 int size = size_of_encoded_value (encoding);
92 dwarf_vma val;
93
94 if (encoding & DW_EH_PE_signed)
95 val = byte_get_signed (data, size);
96 else
97 val = byte_get (data, size);
98
99 if ((encoding & 0x70) == DW_EH_PE_pcrel)
100 val += section->address + (data - section->start);
101 return val;
102 }
103
104 /* Print a dwarf_vma value (typically an address, offset or length) in
105 hexadecimal format, followed by a space. The length of the value (and
106 hence the precision displayed) is determined by the byte_size parameter. */
107
108 static void
109 print_dwarf_vma (dwarf_vma val, unsigned byte_size)
110 {
111 static char buff[18];
112 int offset = 0;
113
114 /* Printf does not have a way of specifiying a maximum field width for an
115 integer value, so we print the full value into a buffer and then select
116 the precision we need. */
117 #if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2)
118 #ifndef __MINGW32__
119 snprintf (buff, sizeof (buff), "%16.16llx ", val);
120 #else
121 snprintf (buff, sizeof (buff), "%016I64x ", val);
122 #endif
123 #else
124 snprintf (buff, sizeof (buff), "%16.16lx ", val);
125 #endif
126
127 if (byte_size != 0)
128 {
129 if (byte_size > 0 && byte_size <= 8)
130 offset = 16 - 2 * byte_size;
131 else
132 error ("Wrong size in print_dwarf_vma");
133 }
134
135 fputs (buff + offset, stdout);
136 }
137
138 #if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2)
139 #ifndef __MINGW32__
140 #define DWARF_VMA_FMT "ll"
141 #else
142 #define DWARF_VMA_FMT "I64"
143 #endif
144 #else
145 #define DWARF_VMA_FMT "l"
146 #endif
147
148 static const char *
149 dwarf_vmatoa (const char *fmtch, dwarf_vma value)
150 {
151 /* As dwarf_vmatoa is used more then once in a printf call
152 for output, we are cycling through an fixed array of pointers
153 for return address. */
154 static int buf_pos = 0;
155 static struct dwarf_vmatoa_buf
156 {
157 char place[64];
158 } buf[16];
159 char fmt[32];
160 char *ret;
161
162 sprintf (fmt, "%%%s%s", DWARF_VMA_FMT, fmtch);
163
164 ret = buf[buf_pos++].place;
165 buf_pos %= ARRAY_SIZE (buf);
166
167 snprintf (ret, sizeof (buf[0].place), fmt, value);
168
169 return ret;
170 }
171
172 dwarf_vma
173 read_leb128 (unsigned char *data, unsigned int *length_return, int sign)
174 {
175 dwarf_vma result = 0;
176 unsigned int num_read = 0;
177 unsigned int shift = 0;
178 unsigned char byte;
179
180 do
181 {
182 byte = *data++;
183 num_read++;
184
185 result |= ((dwarf_vma) (byte & 0x7f)) << shift;
186
187 shift += 7;
188
189 }
190 while (byte & 0x80);
191
192 if (length_return != NULL)
193 *length_return = num_read;
194
195 if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40))
196 result |= -1L << shift;
197
198 return result;
199 }
200
201 /* Create a signed version to avoid painful typecasts. */
202 static dwarf_signed_vma
203 read_sleb128 (unsigned char *data, unsigned int *length_return)
204 {
205 return (dwarf_signed_vma) read_leb128 (data, length_return, 1);
206 }
207
208 typedef struct State_Machine_Registers
209 {
210 dwarf_vma address;
211 unsigned int file;
212 unsigned int line;
213 unsigned int column;
214 int is_stmt;
215 int basic_block;
216 unsigned char op_index;
217 unsigned char end_sequence;
218 /* This variable hold the number of the last entry seen
219 in the File Table. */
220 unsigned int last_file_entry;
221 } SMR;
222
223 static SMR state_machine_regs;
224
225 static void
226 reset_state_machine (int is_stmt)
227 {
228 state_machine_regs.address = 0;
229 state_machine_regs.op_index = 0;
230 state_machine_regs.file = 1;
231 state_machine_regs.line = 1;
232 state_machine_regs.column = 0;
233 state_machine_regs.is_stmt = is_stmt;
234 state_machine_regs.basic_block = 0;
235 state_machine_regs.end_sequence = 0;
236 state_machine_regs.last_file_entry = 0;
237 }
238
239 /* Handled an extend line op.
240 Returns the number of bytes read. */
241
242 static int
243 process_extended_line_op (unsigned char *data, int is_stmt)
244 {
245 unsigned char op_code;
246 unsigned int bytes_read;
247 unsigned int len;
248 unsigned char *name;
249 dwarf_vma adr;
250
251 len = read_leb128 (data, & bytes_read, 0);
252 data += bytes_read;
253
254 if (len == 0)
255 {
256 warn (_("badly formed extended line op encountered!\n"));
257 return bytes_read;
258 }
259
260 len += bytes_read;
261 op_code = *data++;
262
263 printf (_(" Extended opcode %d: "), op_code);
264
265 switch (op_code)
266 {
267 case DW_LNE_end_sequence:
268 printf (_("End of Sequence\n\n"));
269 reset_state_machine (is_stmt);
270 break;
271
272 case DW_LNE_set_address:
273 adr = byte_get (data, len - bytes_read - 1);
274 printf (_("set Address to 0x%s\n"), dwarf_vmatoa ("x", adr));
275 state_machine_regs.address = adr;
276 state_machine_regs.op_index = 0;
277 break;
278
279 case DW_LNE_define_file:
280 printf (_(" define new File Table entry\n"));
281 printf (_(" Entry\tDir\tTime\tSize\tName\n"));
282
283 printf (" %d\t", ++state_machine_regs.last_file_entry);
284 name = data;
285 data += strlen ((char *) data) + 1;
286 printf ("%s\t", dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
287 data += bytes_read;
288 printf ("%s\t", dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
289 data += bytes_read;
290 printf ("%s\t", dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
291 printf ("%s\n\n", name);
292 break;
293
294 case DW_LNE_set_discriminator:
295 printf (_("set Discriminator to %s\n"),
296 dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
297 break;
298
299 /* HP extensions. */
300 case DW_LNE_HP_negate_is_UV_update:
301 printf ("DW_LNE_HP_negate_is_UV_update\n");
302 break;
303 case DW_LNE_HP_push_context:
304 printf ("DW_LNE_HP_push_context\n");
305 break;
306 case DW_LNE_HP_pop_context:
307 printf ("DW_LNE_HP_pop_context\n");
308 break;
309 case DW_LNE_HP_set_file_line_column:
310 printf ("DW_LNE_HP_set_file_line_column\n");
311 break;
312 case DW_LNE_HP_set_routine_name:
313 printf ("DW_LNE_HP_set_routine_name\n");
314 break;
315 case DW_LNE_HP_set_sequence:
316 printf ("DW_LNE_HP_set_sequence\n");
317 break;
318 case DW_LNE_HP_negate_post_semantics:
319 printf ("DW_LNE_HP_negate_post_semantics\n");
320 break;
321 case DW_LNE_HP_negate_function_exit:
322 printf ("DW_LNE_HP_negate_function_exit\n");
323 break;
324 case DW_LNE_HP_negate_front_end_logical:
325 printf ("DW_LNE_HP_negate_front_end_logical\n");
326 break;
327 case DW_LNE_HP_define_proc:
328 printf ("DW_LNE_HP_define_proc\n");
329 break;
330 case DW_LNE_HP_source_file_correlation:
331 {
332 unsigned char *edata = data + len - bytes_read - 1;
333
334 printf ("DW_LNE_HP_source_file_correlation\n");
335
336 while (data < edata)
337 {
338 unsigned int opc;
339
340 opc = read_leb128 (data, & bytes_read, 0);
341 data += bytes_read;
342
343 switch (opc)
344 {
345 case DW_LNE_HP_SFC_formfeed:
346 printf (" DW_LNE_HP_SFC_formfeed\n");
347 break;
348 case DW_LNE_HP_SFC_set_listing_line:
349 printf (" DW_LNE_HP_SFC_set_listing_line (%s)\n",
350 dwarf_vmatoa ("u",
351 read_leb128 (data, & bytes_read, 0)));
352 data += bytes_read;
353 break;
354 case DW_LNE_HP_SFC_associate:
355 printf (" DW_LNE_HP_SFC_associate ");
356 printf (_("(%s"),
357 dwarf_vmatoa ("u",
358 read_leb128 (data, & bytes_read, 0)));
359 data += bytes_read;
360 printf (_(",%s"),
361 dwarf_vmatoa ("u",
362 read_leb128 (data, & bytes_read, 0)));
363 data += bytes_read;
364 printf (_(",%s)\n"),
365 dwarf_vmatoa ("u",
366 read_leb128 (data, & bytes_read, 0)));
367 data += bytes_read;
368 break;
369 default:
370 printf (" UNKNOW DW_LNE_HP_SFC opcode (%u)\n", opc);
371 data = edata;
372 break;
373 }
374 }
375 }
376 break;
377
378 default:
379 {
380 unsigned int rlen = len - bytes_read - 1;
381
382 if (op_code >= DW_LNE_lo_user
383 /* The test against DW_LNW_hi_user is redundant due to
384 the limited range of the unsigned char data type used
385 for op_code. */
386 /*&& op_code <= DW_LNE_hi_user*/)
387 printf (_("user defined: "));
388 else
389 printf (_("UNKNOWN: "));
390 printf (_("length %d ["), rlen);
391 for (; rlen; rlen--)
392 printf (" %02x", *data++);
393 printf ("]\n");
394 }
395 break;
396 }
397
398 return len;
399 }
400
401 static const char *
402 fetch_indirect_string (dwarf_vma offset)
403 {
404 struct dwarf_section *section = &debug_displays [str].section;
405
406 if (section->start == NULL)
407 return _("<no .debug_str section>");
408
409 /* DWARF sections under Mach-O have non-zero addresses. */
410 offset -= section->address;
411 if (offset > section->size)
412 {
413 warn (_("DW_FORM_strp offset too big: %s\n"),
414 dwarf_vmatoa ("x", offset));
415 return _("<offset is too big>");
416 }
417
418 return (const char *) section->start + offset;
419 }
420
421 /* FIXME: There are better and more efficient ways to handle
422 these structures. For now though, I just want something that
423 is simple to implement. */
424 typedef struct abbrev_attr
425 {
426 unsigned long attribute;
427 unsigned long form;
428 struct abbrev_attr *next;
429 }
430 abbrev_attr;
431
432 typedef struct abbrev_entry
433 {
434 unsigned long entry;
435 unsigned long tag;
436 int children;
437 struct abbrev_attr *first_attr;
438 struct abbrev_attr *last_attr;
439 struct abbrev_entry *next;
440 }
441 abbrev_entry;
442
443 static abbrev_entry *first_abbrev = NULL;
444 static abbrev_entry *last_abbrev = NULL;
445
446 static void
447 free_abbrevs (void)
448 {
449 abbrev_entry *abbrv;
450
451 for (abbrv = first_abbrev; abbrv;)
452 {
453 abbrev_entry *next_abbrev = abbrv->next;
454 abbrev_attr *attr;
455
456 for (attr = abbrv->first_attr; attr;)
457 {
458 abbrev_attr *next_attr = attr->next;
459
460 free (attr);
461 attr = next_attr;
462 }
463
464 free (abbrv);
465 abbrv = next_abbrev;
466 }
467
468 last_abbrev = first_abbrev = NULL;
469 }
470
471 static void
472 add_abbrev (unsigned long number, unsigned long tag, int children)
473 {
474 abbrev_entry *entry;
475
476 entry = (abbrev_entry *) malloc (sizeof (*entry));
477 if (entry == NULL)
478 /* ugg */
479 return;
480
481 entry->entry = number;
482 entry->tag = tag;
483 entry->children = children;
484 entry->first_attr = NULL;
485 entry->last_attr = NULL;
486 entry->next = NULL;
487
488 if (first_abbrev == NULL)
489 first_abbrev = entry;
490 else
491 last_abbrev->next = entry;
492
493 last_abbrev = entry;
494 }
495
496 static void
497 add_abbrev_attr (unsigned long attribute, unsigned long form)
498 {
499 abbrev_attr *attr;
500
501 attr = (abbrev_attr *) malloc (sizeof (*attr));
502 if (attr == NULL)
503 /* ugg */
504 return;
505
506 attr->attribute = attribute;
507 attr->form = form;
508 attr->next = NULL;
509
510 if (last_abbrev->first_attr == NULL)
511 last_abbrev->first_attr = attr;
512 else
513 last_abbrev->last_attr->next = attr;
514
515 last_abbrev->last_attr = attr;
516 }
517
518 /* Processes the (partial) contents of a .debug_abbrev section.
519 Returns NULL if the end of the section was encountered.
520 Returns the address after the last byte read if the end of
521 an abbreviation set was found. */
522
523 static unsigned char *
524 process_abbrev_section (unsigned char *start, unsigned char *end)
525 {
526 if (first_abbrev != NULL)
527 return NULL;
528
529 while (start < end)
530 {
531 unsigned int bytes_read;
532 unsigned long entry;
533 unsigned long tag;
534 unsigned long attribute;
535 int children;
536
537 entry = read_leb128 (start, & bytes_read, 0);
538 start += bytes_read;
539
540 /* A single zero is supposed to end the section according
541 to the standard. If there's more, then signal that to
542 the caller. */
543 if (entry == 0)
544 return start == end ? NULL : start;
545
546 tag = read_leb128 (start, & bytes_read, 0);
547 start += bytes_read;
548
549 children = *start++;
550
551 add_abbrev (entry, tag, children);
552
553 do
554 {
555 unsigned long form;
556
557 attribute = read_leb128 (start, & bytes_read, 0);
558 start += bytes_read;
559
560 form = read_leb128 (start, & bytes_read, 0);
561 start += bytes_read;
562
563 if (attribute != 0)
564 add_abbrev_attr (attribute, form);
565 }
566 while (attribute != 0);
567 }
568
569 return NULL;
570 }
571
572 static char *
573 get_TAG_name (unsigned long tag)
574 {
575 switch (tag)
576 {
577 case DW_TAG_padding: return "DW_TAG_padding";
578 case DW_TAG_array_type: return "DW_TAG_array_type";
579 case DW_TAG_class_type: return "DW_TAG_class_type";
580 case DW_TAG_entry_point: return "DW_TAG_entry_point";
581 case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type";
582 case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter";
583 case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration";
584 case DW_TAG_label: return "DW_TAG_label";
585 case DW_TAG_lexical_block: return "DW_TAG_lexical_block";
586 case DW_TAG_member: return "DW_TAG_member";
587 case DW_TAG_pointer_type: return "DW_TAG_pointer_type";
588 case DW_TAG_reference_type: return "DW_TAG_reference_type";
589 case DW_TAG_compile_unit: return "DW_TAG_compile_unit";
590 case DW_TAG_string_type: return "DW_TAG_string_type";
591 case DW_TAG_structure_type: return "DW_TAG_structure_type";
592 case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type";
593 case DW_TAG_typedef: return "DW_TAG_typedef";
594 case DW_TAG_union_type: return "DW_TAG_union_type";
595 case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters";
596 case DW_TAG_variant: return "DW_TAG_variant";
597 case DW_TAG_common_block: return "DW_TAG_common_block";
598 case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion";
599 case DW_TAG_inheritance: return "DW_TAG_inheritance";
600 case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine";
601 case DW_TAG_module: return "DW_TAG_module";
602 case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type";
603 case DW_TAG_set_type: return "DW_TAG_set_type";
604 case DW_TAG_subrange_type: return "DW_TAG_subrange_type";
605 case DW_TAG_with_stmt: return "DW_TAG_with_stmt";
606 case DW_TAG_access_declaration: return "DW_TAG_access_declaration";
607 case DW_TAG_base_type: return "DW_TAG_base_type";
608 case DW_TAG_catch_block: return "DW_TAG_catch_block";
609 case DW_TAG_const_type: return "DW_TAG_const_type";
610 case DW_TAG_constant: return "DW_TAG_constant";
611 case DW_TAG_enumerator: return "DW_TAG_enumerator";
612 case DW_TAG_file_type: return "DW_TAG_file_type";
613 case DW_TAG_friend: return "DW_TAG_friend";
614 case DW_TAG_namelist: return "DW_TAG_namelist";
615 case DW_TAG_namelist_item: return "DW_TAG_namelist_item";
616 case DW_TAG_packed_type: return "DW_TAG_packed_type";
617 case DW_TAG_subprogram: return "DW_TAG_subprogram";
618 case DW_TAG_template_type_param: return "DW_TAG_template_type_param";
619 case DW_TAG_template_value_param: return "DW_TAG_template_value_param";
620 case DW_TAG_thrown_type: return "DW_TAG_thrown_type";
621 case DW_TAG_try_block: return "DW_TAG_try_block";
622 case DW_TAG_variant_part: return "DW_TAG_variant_part";
623 case DW_TAG_variable: return "DW_TAG_variable";
624 case DW_TAG_volatile_type: return "DW_TAG_volatile_type";
625 case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop";
626 case DW_TAG_format_label: return "DW_TAG_format_label";
627 case DW_TAG_function_template: return "DW_TAG_function_template";
628 case DW_TAG_class_template: return "DW_TAG_class_template";
629 /* DWARF 2.1 values. */
630 case DW_TAG_dwarf_procedure: return "DW_TAG_dwarf_procedure";
631 case DW_TAG_restrict_type: return "DW_TAG_restrict_type";
632 case DW_TAG_interface_type: return "DW_TAG_interface_type";
633 case DW_TAG_namespace: return "DW_TAG_namespace";
634 case DW_TAG_imported_module: return "DW_TAG_imported_module";
635 case DW_TAG_unspecified_type: return "DW_TAG_unspecified_type";
636 case DW_TAG_partial_unit: return "DW_TAG_partial_unit";
637 case DW_TAG_imported_unit: return "DW_TAG_imported_unit";
638 case DW_TAG_condition: return "DW_TAG_condition";
639 case DW_TAG_shared_type: return "DW_TAG_shared_type";
640 /* DWARF 4 values. */
641 case DW_TAG_type_unit: return "DW_TAG_type_unit";
642 case DW_TAG_rvalue_reference_type: return "DW_TAG_rvalue_reference_type";
643 case DW_TAG_template_alias: return "DW_TAG_template_alias";
644 /* UPC values. */
645 case DW_TAG_upc_shared_type: return "DW_TAG_upc_shared_type";
646 case DW_TAG_upc_strict_type: return "DW_TAG_upc_strict_type";
647 case DW_TAG_upc_relaxed_type: return "DW_TAG_upc_relaxed_type";
648 /* GNU values. */
649 case DW_TAG_GNU_call_site: return "DW_TAG_GNU_call_site";
650 case DW_TAG_GNU_call_site_parameter:return "DW_TAG_GNU_call_site_parameter";
651 default:
652 {
653 static char buffer[100];
654
655 snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag);
656 return buffer;
657 }
658 }
659 }
660
661 static char *
662 get_FORM_name (unsigned long form)
663 {
664 switch (form)
665 {
666 case DW_FORM_addr: return "DW_FORM_addr";
667 case DW_FORM_block2: return "DW_FORM_block2";
668 case DW_FORM_block4: return "DW_FORM_block4";
669 case DW_FORM_data2: return "DW_FORM_data2";
670 case DW_FORM_data4: return "DW_FORM_data4";
671 case DW_FORM_data8: return "DW_FORM_data8";
672 case DW_FORM_string: return "DW_FORM_string";
673 case DW_FORM_block: return "DW_FORM_block";
674 case DW_FORM_block1: return "DW_FORM_block1";
675 case DW_FORM_data1: return "DW_FORM_data1";
676 case DW_FORM_flag: return "DW_FORM_flag";
677 case DW_FORM_sdata: return "DW_FORM_sdata";
678 case DW_FORM_strp: return "DW_FORM_strp";
679 case DW_FORM_udata: return "DW_FORM_udata";
680 case DW_FORM_ref_addr: return "DW_FORM_ref_addr";
681 case DW_FORM_ref1: return "DW_FORM_ref1";
682 case DW_FORM_ref2: return "DW_FORM_ref2";
683 case DW_FORM_ref4: return "DW_FORM_ref4";
684 case DW_FORM_ref8: return "DW_FORM_ref8";
685 case DW_FORM_ref_udata: return "DW_FORM_ref_udata";
686 case DW_FORM_indirect: return "DW_FORM_indirect";
687 /* DWARF 4 values. */
688 case DW_FORM_sec_offset: return "DW_FORM_sec_offset";
689 case DW_FORM_exprloc: return "DW_FORM_exprloc";
690 case DW_FORM_flag_present: return "DW_FORM_flag_present";
691 case DW_FORM_ref_sig8: return "DW_FORM_ref_sig8";
692 default:
693 {
694 static char buffer[100];
695
696 snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form);
697 return buffer;
698 }
699 }
700 }
701
702 static unsigned char *
703 display_block (unsigned char *data, dwarf_vma length)
704 {
705 printf (_(" %s byte block: "), dwarf_vmatoa ("u", length));
706
707 while (length --)
708 printf ("%lx ", (unsigned long) byte_get (data++, 1));
709
710 return data;
711 }
712
713 static int
714 decode_location_expression (unsigned char * data,
715 unsigned int pointer_size,
716 unsigned int offset_size,
717 int dwarf_version,
718 dwarf_vma length,
719 dwarf_vma cu_offset,
720 struct dwarf_section * section)
721 {
722 unsigned op;
723 unsigned int bytes_read;
724 dwarf_vma uvalue;
725 unsigned char *end = data + length;
726 int need_frame_base = 0;
727
728 while (data < end)
729 {
730 op = *data++;
731
732 switch (op)
733 {
734 case DW_OP_addr:
735 printf ("DW_OP_addr: %s",
736 dwarf_vmatoa ("x", byte_get (data, pointer_size)));
737 data += pointer_size;
738 break;
739 case DW_OP_deref:
740 printf ("DW_OP_deref");
741 break;
742 case DW_OP_const1u:
743 printf ("DW_OP_const1u: %lu", (unsigned long) byte_get (data++, 1));
744 break;
745 case DW_OP_const1s:
746 printf ("DW_OP_const1s: %ld", (long) byte_get_signed (data++, 1));
747 break;
748 case DW_OP_const2u:
749 printf ("DW_OP_const2u: %lu", (unsigned long) byte_get (data, 2));
750 data += 2;
751 break;
752 case DW_OP_const2s:
753 printf ("DW_OP_const2s: %ld", (long) byte_get_signed (data, 2));
754 data += 2;
755 break;
756 case DW_OP_const4u:
757 printf ("DW_OP_const4u: %lu", (unsigned long) byte_get (data, 4));
758 data += 4;
759 break;
760 case DW_OP_const4s:
761 printf ("DW_OP_const4s: %ld", (long) byte_get_signed (data, 4));
762 data += 4;
763 break;
764 case DW_OP_const8u:
765 printf ("DW_OP_const8u: %lu %lu", (unsigned long) byte_get (data, 4),
766 (unsigned long) byte_get (data + 4, 4));
767 data += 8;
768 break;
769 case DW_OP_const8s:
770 printf ("DW_OP_const8s: %ld %ld", (long) byte_get (data, 4),
771 (long) byte_get (data + 4, 4));
772 data += 8;
773 break;
774 case DW_OP_constu:
775 printf ("DW_OP_constu: %s",
776 dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0)));
777 data += bytes_read;
778 break;
779 case DW_OP_consts:
780 printf ("DW_OP_consts: %s",
781 dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read)));
782 data += bytes_read;
783 break;
784 case DW_OP_dup:
785 printf ("DW_OP_dup");
786 break;
787 case DW_OP_drop:
788 printf ("DW_OP_drop");
789 break;
790 case DW_OP_over:
791 printf ("DW_OP_over");
792 break;
793 case DW_OP_pick:
794 printf ("DW_OP_pick: %ld", (unsigned long) byte_get (data++, 1));
795 break;
796 case DW_OP_swap:
797 printf ("DW_OP_swap");
798 break;
799 case DW_OP_rot:
800 printf ("DW_OP_rot");
801 break;
802 case DW_OP_xderef:
803 printf ("DW_OP_xderef");
804 break;
805 case DW_OP_abs:
806 printf ("DW_OP_abs");
807 break;
808 case DW_OP_and:
809 printf ("DW_OP_and");
810 break;
811 case DW_OP_div:
812 printf ("DW_OP_div");
813 break;
814 case DW_OP_minus:
815 printf ("DW_OP_minus");
816 break;
817 case DW_OP_mod:
818 printf ("DW_OP_mod");
819 break;
820 case DW_OP_mul:
821 printf ("DW_OP_mul");
822 break;
823 case DW_OP_neg:
824 printf ("DW_OP_neg");
825 break;
826 case DW_OP_not:
827 printf ("DW_OP_not");
828 break;
829 case DW_OP_or:
830 printf ("DW_OP_or");
831 break;
832 case DW_OP_plus:
833 printf ("DW_OP_plus");
834 break;
835 case DW_OP_plus_uconst:
836 printf ("DW_OP_plus_uconst: %s",
837 dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0)));
838 data += bytes_read;
839 break;
840 case DW_OP_shl:
841 printf ("DW_OP_shl");
842 break;
843 case DW_OP_shr:
844 printf ("DW_OP_shr");
845 break;
846 case DW_OP_shra:
847 printf ("DW_OP_shra");
848 break;
849 case DW_OP_xor:
850 printf ("DW_OP_xor");
851 break;
852 case DW_OP_bra:
853 printf ("DW_OP_bra: %ld", (long) byte_get_signed (data, 2));
854 data += 2;
855 break;
856 case DW_OP_eq:
857 printf ("DW_OP_eq");
858 break;
859 case DW_OP_ge:
860 printf ("DW_OP_ge");
861 break;
862 case DW_OP_gt:
863 printf ("DW_OP_gt");
864 break;
865 case DW_OP_le:
866 printf ("DW_OP_le");
867 break;
868 case DW_OP_lt:
869 printf ("DW_OP_lt");
870 break;
871 case DW_OP_ne:
872 printf ("DW_OP_ne");
873 break;
874 case DW_OP_skip:
875 printf ("DW_OP_skip: %ld", (long) byte_get_signed (data, 2));
876 data += 2;
877 break;
878
879 case DW_OP_lit0:
880 case DW_OP_lit1:
881 case DW_OP_lit2:
882 case DW_OP_lit3:
883 case DW_OP_lit4:
884 case DW_OP_lit5:
885 case DW_OP_lit6:
886 case DW_OP_lit7:
887 case DW_OP_lit8:
888 case DW_OP_lit9:
889 case DW_OP_lit10:
890 case DW_OP_lit11:
891 case DW_OP_lit12:
892 case DW_OP_lit13:
893 case DW_OP_lit14:
894 case DW_OP_lit15:
895 case DW_OP_lit16:
896 case DW_OP_lit17:
897 case DW_OP_lit18:
898 case DW_OP_lit19:
899 case DW_OP_lit20:
900 case DW_OP_lit21:
901 case DW_OP_lit22:
902 case DW_OP_lit23:
903 case DW_OP_lit24:
904 case DW_OP_lit25:
905 case DW_OP_lit26:
906 case DW_OP_lit27:
907 case DW_OP_lit28:
908 case DW_OP_lit29:
909 case DW_OP_lit30:
910 case DW_OP_lit31:
911 printf ("DW_OP_lit%d", op - DW_OP_lit0);
912 break;
913
914 case DW_OP_reg0:
915 case DW_OP_reg1:
916 case DW_OP_reg2:
917 case DW_OP_reg3:
918 case DW_OP_reg4:
919 case DW_OP_reg5:
920 case DW_OP_reg6:
921 case DW_OP_reg7:
922 case DW_OP_reg8:
923 case DW_OP_reg9:
924 case DW_OP_reg10:
925 case DW_OP_reg11:
926 case DW_OP_reg12:
927 case DW_OP_reg13:
928 case DW_OP_reg14:
929 case DW_OP_reg15:
930 case DW_OP_reg16:
931 case DW_OP_reg17:
932 case DW_OP_reg18:
933 case DW_OP_reg19:
934 case DW_OP_reg20:
935 case DW_OP_reg21:
936 case DW_OP_reg22:
937 case DW_OP_reg23:
938 case DW_OP_reg24:
939 case DW_OP_reg25:
940 case DW_OP_reg26:
941 case DW_OP_reg27:
942 case DW_OP_reg28:
943 case DW_OP_reg29:
944 case DW_OP_reg30:
945 case DW_OP_reg31:
946 printf ("DW_OP_reg%d (%s)", op - DW_OP_reg0,
947 regname (op - DW_OP_reg0, 1));
948 break;
949
950 case DW_OP_breg0:
951 case DW_OP_breg1:
952 case DW_OP_breg2:
953 case DW_OP_breg3:
954 case DW_OP_breg4:
955 case DW_OP_breg5:
956 case DW_OP_breg6:
957 case DW_OP_breg7:
958 case DW_OP_breg8:
959 case DW_OP_breg9:
960 case DW_OP_breg10:
961 case DW_OP_breg11:
962 case DW_OP_breg12:
963 case DW_OP_breg13:
964 case DW_OP_breg14:
965 case DW_OP_breg15:
966 case DW_OP_breg16:
967 case DW_OP_breg17:
968 case DW_OP_breg18:
969 case DW_OP_breg19:
970 case DW_OP_breg20:
971 case DW_OP_breg21:
972 case DW_OP_breg22:
973 case DW_OP_breg23:
974 case DW_OP_breg24:
975 case DW_OP_breg25:
976 case DW_OP_breg26:
977 case DW_OP_breg27:
978 case DW_OP_breg28:
979 case DW_OP_breg29:
980 case DW_OP_breg30:
981 case DW_OP_breg31:
982 printf ("DW_OP_breg%d (%s): %s",
983 op - DW_OP_breg0,
984 regname (op - DW_OP_breg0, 1),
985 dwarf_vmatoa ("d", (dwarf_signed_vma)
986 read_leb128 (data, &bytes_read, 1)));
987 data += bytes_read;
988 break;
989
990 case DW_OP_regx:
991 uvalue = read_leb128 (data, &bytes_read, 0);
992 data += bytes_read;
993 printf ("DW_OP_regx: %s (%s)",
994 dwarf_vmatoa ("u", uvalue), regname (uvalue, 1));
995 break;
996 case DW_OP_fbreg:
997 need_frame_base = 1;
998 printf ("DW_OP_fbreg: %s",
999 dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read)));
1000 data += bytes_read;
1001 break;
1002 case DW_OP_bregx:
1003 uvalue = read_leb128 (data, &bytes_read, 0);
1004 data += bytes_read;
1005 printf ("DW_OP_bregx: %s (%s) %s",
1006 dwarf_vmatoa ("u", uvalue), regname (uvalue, 1),
1007 dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read)));
1008 data += bytes_read;
1009 break;
1010 case DW_OP_piece:
1011 printf ("DW_OP_piece: %s",
1012 dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0)));
1013 data += bytes_read;
1014 break;
1015 case DW_OP_deref_size:
1016 printf ("DW_OP_deref_size: %ld", (long) byte_get (data++, 1));
1017 break;
1018 case DW_OP_xderef_size:
1019 printf ("DW_OP_xderef_size: %ld", (long) byte_get (data++, 1));
1020 break;
1021 case DW_OP_nop:
1022 printf ("DW_OP_nop");
1023 break;
1024
1025 /* DWARF 3 extensions. */
1026 case DW_OP_push_object_address:
1027 printf ("DW_OP_push_object_address");
1028 break;
1029 case DW_OP_call2:
1030 /* XXX: Strictly speaking for 64-bit DWARF3 files
1031 this ought to be an 8-byte wide computation. */
1032 printf ("DW_OP_call2: <0x%s>",
1033 dwarf_vmatoa ("x", (dwarf_signed_vma) byte_get (data, 2)
1034 + cu_offset));
1035 data += 2;
1036 break;
1037 case DW_OP_call4:
1038 /* XXX: Strictly speaking for 64-bit DWARF3 files
1039 this ought to be an 8-byte wide computation. */
1040 printf ("DW_OP_call4: <0x%s>",
1041 dwarf_vmatoa ("x", (dwarf_signed_vma) byte_get (data, 4)
1042 + cu_offset));
1043 data += 4;
1044 break;
1045 case DW_OP_call_ref:
1046 /* XXX: Strictly speaking for 64-bit DWARF3 files
1047 this ought to be an 8-byte wide computation. */
1048 if (dwarf_version == -1)
1049 {
1050 printf (_("(DW_OP_call_ref in frame info)"));
1051 /* No way to tell where the next op is, so just bail. */
1052 return need_frame_base;
1053 }
1054 if (dwarf_version == 2)
1055 {
1056 printf ("DW_OP_call_ref: <0x%s>",
1057 dwarf_vmatoa ("x", byte_get (data, pointer_size)));
1058 data += pointer_size;
1059 }
1060 else
1061 {
1062 printf ("DW_OP_call_ref: <0x%s>",
1063 dwarf_vmatoa ("x", byte_get (data, offset_size)));
1064 data += offset_size;
1065 }
1066 break;
1067 case DW_OP_form_tls_address:
1068 printf ("DW_OP_form_tls_address");
1069 break;
1070 case DW_OP_call_frame_cfa:
1071 printf ("DW_OP_call_frame_cfa");
1072 break;
1073 case DW_OP_bit_piece:
1074 printf ("DW_OP_bit_piece: ");
1075 printf ("size: %s ",
1076 dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0)));
1077 data += bytes_read;
1078 printf ("offset: %s ",
1079 dwarf_vmatoa ("u", read_leb128 (data, &bytes_read, 0)));
1080 data += bytes_read;
1081 break;
1082
1083 /* DWARF 4 extensions. */
1084 case DW_OP_stack_value:
1085 printf ("DW_OP_stack_value");
1086 break;
1087
1088 case DW_OP_implicit_value:
1089 printf ("DW_OP_implicit_value");
1090 uvalue = read_leb128 (data, &bytes_read, 0);
1091 data += bytes_read;
1092 display_block (data, uvalue);
1093 data += uvalue;
1094 break;
1095
1096 /* GNU extensions. */
1097 case DW_OP_GNU_push_tls_address:
1098 printf ("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown");
1099 break;
1100 case DW_OP_GNU_uninit:
1101 printf ("DW_OP_GNU_uninit");
1102 /* FIXME: Is there data associated with this OP ? */
1103 break;
1104 case DW_OP_GNU_encoded_addr:
1105 {
1106 int encoding;
1107 dwarf_vma addr;
1108
1109 encoding = *data++;
1110 addr = get_encoded_value (data, encoding, section);
1111 data += size_of_encoded_value (encoding);
1112
1113 printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding);
1114 print_dwarf_vma (addr, pointer_size);
1115 }
1116 break;
1117 case DW_OP_GNU_implicit_pointer:
1118 /* XXX: Strictly speaking for 64-bit DWARF3 files
1119 this ought to be an 8-byte wide computation. */
1120 if (dwarf_version == -1)
1121 {
1122 printf (_("(DW_OP_GNU_implicit_pointer in frame info)"));
1123 /* No way to tell where the next op is, so just bail. */
1124 return need_frame_base;
1125 }
1126 if (dwarf_version == 2)
1127 {
1128 printf ("DW_OP_GNU_implicit_pointer: <0x%s> %s",
1129 dwarf_vmatoa ("x", byte_get (data, pointer_size)),
1130 dwarf_vmatoa ("d", read_sleb128 (data + pointer_size,
1131 &bytes_read)));
1132 data += pointer_size + bytes_read;
1133 }
1134 else
1135 {
1136 printf ("DW_OP_GNU_implicit_pointer: <0x%s> %s",
1137 dwarf_vmatoa ("x", byte_get (data, offset_size)),
1138 dwarf_vmatoa ("d", read_sleb128 (data + offset_size,
1139 &bytes_read)));
1140 data += offset_size + bytes_read;
1141 }
1142 break;
1143 case DW_OP_GNU_entry_value:
1144 uvalue = read_leb128 (data, &bytes_read, 0);
1145 data += bytes_read;
1146 printf ("DW_OP_GNU_entry_value: (");
1147 if (decode_location_expression (data, pointer_size, offset_size,
1148 dwarf_version, uvalue,
1149 cu_offset, section))
1150 need_frame_base = 1;
1151 putchar (')');
1152 data += uvalue;
1153 break;
1154 case DW_OP_GNU_const_type:
1155 uvalue = read_leb128 (data, &bytes_read, 0);
1156 data += bytes_read;
1157 printf ("DW_OP_GNU_const_type: <0x%s> ",
1158 dwarf_vmatoa ("x", cu_offset + uvalue));
1159 uvalue = byte_get (data++, 1);
1160 display_block (data, uvalue);
1161 data += uvalue;
1162 break;
1163 case DW_OP_GNU_regval_type:
1164 uvalue = read_leb128 (data, &bytes_read, 0);
1165 data += bytes_read;
1166 printf ("DW_OP_GNU_regval_type: %s (%s)",
1167 dwarf_vmatoa ("u", uvalue), regname (uvalue, 1));
1168 uvalue = read_leb128 (data, &bytes_read, 0);
1169 data += bytes_read;
1170 printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue));
1171 break;
1172 case DW_OP_GNU_deref_type:
1173 printf ("DW_OP_GNU_deref_type: %ld", (long) byte_get (data++, 1));
1174 uvalue = read_leb128 (data, &bytes_read, 0);
1175 data += bytes_read;
1176 printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue));
1177 break;
1178 case DW_OP_GNU_convert:
1179 uvalue = read_leb128 (data, &bytes_read, 0);
1180 data += bytes_read;
1181 printf ("DW_OP_GNU_convert <0x%s>",
1182 dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0));
1183 break;
1184 case DW_OP_GNU_reinterpret:
1185 uvalue = read_leb128 (data, &bytes_read, 0);
1186 data += bytes_read;
1187 printf ("DW_OP_GNU_reinterpret <0x%s>",
1188 dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0));
1189 break;
1190 case DW_OP_GNU_parameter_ref:
1191 printf ("DW_OP_GNU_parameter_ref: <0x%s>",
1192 dwarf_vmatoa ("x", cu_offset + byte_get (data, 4)));
1193 data += 4;
1194 break;
1195
1196 /* HP extensions. */
1197 case DW_OP_HP_is_value:
1198 printf ("DW_OP_HP_is_value");
1199 /* FIXME: Is there data associated with this OP ? */
1200 break;
1201 case DW_OP_HP_fltconst4:
1202 printf ("DW_OP_HP_fltconst4");
1203 /* FIXME: Is there data associated with this OP ? */
1204 break;
1205 case DW_OP_HP_fltconst8:
1206 printf ("DW_OP_HP_fltconst8");
1207 /* FIXME: Is there data associated with this OP ? */
1208 break;
1209 case DW_OP_HP_mod_range:
1210 printf ("DW_OP_HP_mod_range");
1211 /* FIXME: Is there data associated with this OP ? */
1212 break;
1213 case DW_OP_HP_unmod_range:
1214 printf ("DW_OP_HP_unmod_range");
1215 /* FIXME: Is there data associated with this OP ? */
1216 break;
1217 case DW_OP_HP_tls:
1218 printf ("DW_OP_HP_tls");
1219 /* FIXME: Is there data associated with this OP ? */
1220 break;
1221
1222 /* PGI (STMicroelectronics) extensions. */
1223 case DW_OP_PGI_omp_thread_num:
1224 /* Pushes the thread number for the current thread as it would be
1225 returned by the standard OpenMP library function:
1226 omp_get_thread_num(). The "current thread" is the thread for
1227 which the expression is being evaluated. */
1228 printf ("DW_OP_PGI_omp_thread_num");
1229 break;
1230
1231 default:
1232 if (op >= DW_OP_lo_user
1233 && op <= DW_OP_hi_user)
1234 printf (_("(User defined location op)"));
1235 else
1236 printf (_("(Unknown location op)"));
1237 /* No way to tell where the next op is, so just bail. */
1238 return need_frame_base;
1239 }
1240
1241 /* Separate the ops. */
1242 if (data < end)
1243 printf ("; ");
1244 }
1245
1246 return need_frame_base;
1247 }
1248
1249 static unsigned char *
1250 read_and_display_attr_value (unsigned long attribute,
1251 unsigned long form,
1252 unsigned char * data,
1253 dwarf_vma cu_offset,
1254 dwarf_vma pointer_size,
1255 dwarf_vma offset_size,
1256 int dwarf_version,
1257 debug_info * debug_info_p,
1258 int do_loc,
1259 struct dwarf_section * section)
1260 {
1261 dwarf_vma uvalue = 0;
1262 unsigned char *block_start = NULL;
1263 unsigned char * orig_data = data;
1264 unsigned int bytes_read;
1265
1266 switch (form)
1267 {
1268 default:
1269 break;
1270
1271 case DW_FORM_ref_addr:
1272 if (dwarf_version == 2)
1273 {
1274 uvalue = byte_get (data, pointer_size);
1275 data += pointer_size;
1276 }
1277 else if (dwarf_version == 3 || dwarf_version == 4)
1278 {
1279 uvalue = byte_get (data, offset_size);
1280 data += offset_size;
1281 }
1282 else
1283 error (_("Internal error: DWARF version is not 2, 3 or 4.\n"));
1284
1285 break;
1286
1287 case DW_FORM_addr:
1288 uvalue = byte_get (data, pointer_size);
1289 data += pointer_size;
1290 break;
1291
1292 case DW_FORM_strp:
1293 case DW_FORM_sec_offset:
1294 uvalue = byte_get (data, offset_size);
1295 data += offset_size;
1296 break;
1297
1298 case DW_FORM_flag_present:
1299 uvalue = 1;
1300 break;
1301
1302 case DW_FORM_ref1:
1303 case DW_FORM_flag:
1304 case DW_FORM_data1:
1305 uvalue = byte_get (data++, 1);
1306 break;
1307
1308 case DW_FORM_ref2:
1309 case DW_FORM_data2:
1310 uvalue = byte_get (data, 2);
1311 data += 2;
1312 break;
1313
1314 case DW_FORM_ref4:
1315 case DW_FORM_data4:
1316 uvalue = byte_get (data, 4);
1317 data += 4;
1318 break;
1319
1320 case DW_FORM_sdata:
1321 uvalue = read_leb128 (data, & bytes_read, 1);
1322 data += bytes_read;
1323 break;
1324
1325 case DW_FORM_ref_udata:
1326 case DW_FORM_udata:
1327 uvalue = read_leb128 (data, & bytes_read, 0);
1328 data += bytes_read;
1329 break;
1330
1331 case DW_FORM_indirect:
1332 form = read_leb128 (data, & bytes_read, 0);
1333 data += bytes_read;
1334 if (!do_loc)
1335 printf (" %s", get_FORM_name (form));
1336 return read_and_display_attr_value (attribute, form, data,
1337 cu_offset, pointer_size,
1338 offset_size, dwarf_version,
1339 debug_info_p, do_loc,
1340 section);
1341 }
1342
1343 switch (form)
1344 {
1345 case DW_FORM_ref_addr:
1346 if (!do_loc)
1347 printf (" <0x%s>", dwarf_vmatoa ("x",uvalue));
1348 break;
1349
1350 case DW_FORM_ref1:
1351 case DW_FORM_ref2:
1352 case DW_FORM_ref4:
1353 case DW_FORM_ref_udata:
1354 if (!do_loc)
1355 printf (" <0x%s>", dwarf_vmatoa ("x", uvalue + cu_offset));
1356 break;
1357
1358 case DW_FORM_data4:
1359 case DW_FORM_addr:
1360 case DW_FORM_sec_offset:
1361 if (!do_loc)
1362 printf (" 0x%s", dwarf_vmatoa ("x", uvalue));
1363 break;
1364
1365 case DW_FORM_flag_present:
1366 case DW_FORM_flag:
1367 case DW_FORM_data1:
1368 case DW_FORM_data2:
1369 case DW_FORM_sdata:
1370 case DW_FORM_udata:
1371 if (!do_loc)
1372 printf (" %s", dwarf_vmatoa ("d", uvalue));
1373 break;
1374
1375 case DW_FORM_ref8:
1376 case DW_FORM_data8:
1377 if (!do_loc)
1378 {
1379 uvalue = byte_get (data, 4);
1380 printf (" 0x%s", dwarf_vmatoa ("x", uvalue));
1381 printf (" 0x%lx", (unsigned long) byte_get (data + 4, 4));
1382 }
1383 if ((do_loc || do_debug_loc || do_debug_ranges)
1384 && num_debug_info_entries == 0)
1385 {
1386 if (sizeof (uvalue) == 8)
1387 uvalue = byte_get (data, 8);
1388 else
1389 error (_("DW_FORM_data8 is unsupported when sizeof (dwarf_vma) != 8\n"));
1390 }
1391 data += 8;
1392 break;
1393
1394 case DW_FORM_string:
1395 if (!do_loc)
1396 printf (" %s", data);
1397 data += strlen ((char *) data) + 1;
1398 break;
1399
1400 case DW_FORM_block:
1401 case DW_FORM_exprloc:
1402 uvalue = read_leb128 (data, & bytes_read, 0);
1403 block_start = data + bytes_read;
1404 if (do_loc)
1405 data = block_start + uvalue;
1406 else
1407 data = display_block (block_start, uvalue);
1408 break;
1409
1410 case DW_FORM_block1:
1411 uvalue = byte_get (data, 1);
1412 block_start = data + 1;
1413 if (do_loc)
1414 data = block_start + uvalue;
1415 else
1416 data = display_block (block_start, uvalue);
1417 break;
1418
1419 case DW_FORM_block2:
1420 uvalue = byte_get (data, 2);
1421 block_start = data + 2;
1422 if (do_loc)
1423 data = block_start + uvalue;
1424 else
1425 data = display_block (block_start, uvalue);
1426 break;
1427
1428 case DW_FORM_block4:
1429 uvalue = byte_get (data, 4);
1430 block_start = data + 4;
1431 if (do_loc)
1432 data = block_start + uvalue;
1433 else
1434 data = display_block (block_start, uvalue);
1435 break;
1436
1437 case DW_FORM_strp:
1438 if (!do_loc)
1439 printf (_(" (indirect string, offset: 0x%s): %s"),
1440 dwarf_vmatoa ("x", uvalue),
1441 fetch_indirect_string (uvalue));
1442 break;
1443
1444 case DW_FORM_indirect:
1445 /* Handled above. */
1446 break;
1447
1448 case DW_FORM_ref_sig8:
1449 if (!do_loc)
1450 {
1451 int i;
1452 printf (" signature: ");
1453 for (i = 0; i < 8; i++)
1454 {
1455 printf ("%02x", (unsigned) byte_get (data, 1));
1456 data += 1;
1457 }
1458 }
1459 else
1460 data += 8;
1461 break;
1462
1463 default:
1464 warn (_("Unrecognized form: %lu\n"), form);
1465 break;
1466 }
1467
1468 if ((do_loc || do_debug_loc || do_debug_ranges)
1469 && num_debug_info_entries == 0
1470 && debug_info_p != NULL)
1471 {
1472 switch (attribute)
1473 {
1474 case DW_AT_frame_base:
1475 have_frame_base = 1;
1476 case DW_AT_location:
1477 case DW_AT_string_length:
1478 case DW_AT_return_addr:
1479 case DW_AT_data_member_location:
1480 case DW_AT_vtable_elem_location:
1481 case DW_AT_segment:
1482 case DW_AT_static_link:
1483 case DW_AT_use_location:
1484 case DW_AT_GNU_call_site_value:
1485 case DW_AT_GNU_call_site_data_value:
1486 case DW_AT_GNU_call_site_target:
1487 case DW_AT_GNU_call_site_target_clobbered:
1488 if (form == DW_FORM_data4
1489 || form == DW_FORM_data8
1490 || form == DW_FORM_sec_offset)
1491 {
1492 /* Process location list. */
1493 unsigned int lmax = debug_info_p->max_loc_offsets;
1494 unsigned int num = debug_info_p->num_loc_offsets;
1495
1496 if (lmax == 0 || num >= lmax)
1497 {
1498 lmax += 1024;
1499 debug_info_p->loc_offsets = (dwarf_vma *)
1500 xcrealloc (debug_info_p->loc_offsets,
1501 lmax, sizeof (*debug_info_p->loc_offsets));
1502 debug_info_p->have_frame_base = (int *)
1503 xcrealloc (debug_info_p->have_frame_base,
1504 lmax, sizeof (*debug_info_p->have_frame_base));
1505 debug_info_p->max_loc_offsets = lmax;
1506 }
1507 debug_info_p->loc_offsets [num] = uvalue;
1508 debug_info_p->have_frame_base [num] = have_frame_base;
1509 debug_info_p->num_loc_offsets++;
1510 }
1511 break;
1512
1513 case DW_AT_low_pc:
1514 if (need_base_address)
1515 debug_info_p->base_address = uvalue;
1516 break;
1517
1518 case DW_AT_ranges:
1519 if (form == DW_FORM_data4
1520 || form == DW_FORM_data8
1521 || form == DW_FORM_sec_offset)
1522 {
1523 /* Process range list. */
1524 unsigned int lmax = debug_info_p->max_range_lists;
1525 unsigned int num = debug_info_p->num_range_lists;
1526
1527 if (lmax == 0 || num >= lmax)
1528 {
1529 lmax += 1024;
1530 debug_info_p->range_lists = (dwarf_vma *)
1531 xcrealloc (debug_info_p->range_lists,
1532 lmax, sizeof (*debug_info_p->range_lists));
1533 debug_info_p->max_range_lists = lmax;
1534 }
1535 debug_info_p->range_lists [num] = uvalue;
1536 debug_info_p->num_range_lists++;
1537 }
1538 break;
1539
1540 default:
1541 break;
1542 }
1543 }
1544
1545 if (do_loc)
1546 return data;
1547
1548 /* For some attributes we can display further information. */
1549 printf ("\t");
1550
1551 switch (attribute)
1552 {
1553 case DW_AT_inline:
1554 switch (uvalue)
1555 {
1556 case DW_INL_not_inlined:
1557 printf (_("(not inlined)"));
1558 break;
1559 case DW_INL_inlined:
1560 printf (_("(inlined)"));
1561 break;
1562 case DW_INL_declared_not_inlined:
1563 printf (_("(declared as inline but ignored)"));
1564 break;
1565 case DW_INL_declared_inlined:
1566 printf (_("(declared as inline and inlined)"));
1567 break;
1568 default:
1569 printf (_(" (Unknown inline attribute value: %s)"),
1570 dwarf_vmatoa ("x", uvalue));
1571 break;
1572 }
1573 break;
1574
1575 case DW_AT_language:
1576 switch (uvalue)
1577 {
1578 /* Ordered by the numeric value of these constants. */
1579 case DW_LANG_C89: printf ("(ANSI C)"); break;
1580 case DW_LANG_C: printf ("(non-ANSI C)"); break;
1581 case DW_LANG_Ada83: printf ("(Ada)"); break;
1582 case DW_LANG_C_plus_plus: printf ("(C++)"); break;
1583 case DW_LANG_Cobol74: printf ("(Cobol 74)"); break;
1584 case DW_LANG_Cobol85: printf ("(Cobol 85)"); break;
1585 case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break;
1586 case DW_LANG_Fortran90: printf ("(Fortran 90)"); break;
1587 case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break;
1588 case DW_LANG_Modula2: printf ("(Modula 2)"); break;
1589 /* DWARF 2.1 values. */
1590 case DW_LANG_Java: printf ("(Java)"); break;
1591 case DW_LANG_C99: printf ("(ANSI C99)"); break;
1592 case DW_LANG_Ada95: printf ("(ADA 95)"); break;
1593 case DW_LANG_Fortran95: printf ("(Fortran 95)"); break;
1594 /* DWARF 3 values. */
1595 case DW_LANG_PLI: printf ("(PLI)"); break;
1596 case DW_LANG_ObjC: printf ("(Objective C)"); break;
1597 case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break;
1598 case DW_LANG_UPC: printf ("(Unified Parallel C)"); break;
1599 case DW_LANG_D: printf ("(D)"); break;
1600 /* DWARF 4 values. */
1601 case DW_LANG_Python: printf ("(Python)"); break;
1602 /* MIPS extension. */
1603 case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break;
1604 /* UPC extension. */
1605 case DW_LANG_Upc: printf ("(Unified Parallel C)"); break;
1606 default:
1607 if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user)
1608 printf ("(implementation defined: %s)",
1609 dwarf_vmatoa ("x", uvalue));
1610 else
1611 printf ("(Unknown: %s)", dwarf_vmatoa ("x", uvalue));
1612 break;
1613 }
1614 break;
1615
1616 case DW_AT_encoding:
1617 switch (uvalue)
1618 {
1619 case DW_ATE_void: printf ("(void)"); break;
1620 case DW_ATE_address: printf ("(machine address)"); break;
1621 case DW_ATE_boolean: printf ("(boolean)"); break;
1622 case DW_ATE_complex_float: printf ("(complex float)"); break;
1623 case DW_ATE_float: printf ("(float)"); break;
1624 case DW_ATE_signed: printf ("(signed)"); break;
1625 case DW_ATE_signed_char: printf ("(signed char)"); break;
1626 case DW_ATE_unsigned: printf ("(unsigned)"); break;
1627 case DW_ATE_unsigned_char: printf ("(unsigned char)"); break;
1628 /* DWARF 2.1 values: */
1629 case DW_ATE_imaginary_float: printf ("(imaginary float)"); break;
1630 case DW_ATE_decimal_float: printf ("(decimal float)"); break;
1631 /* DWARF 3 values: */
1632 case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break;
1633 case DW_ATE_numeric_string: printf ("(numeric_string)"); break;
1634 case DW_ATE_edited: printf ("(edited)"); break;
1635 case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break;
1636 case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break;
1637 /* HP extensions: */
1638 case DW_ATE_HP_float80: printf ("(HP_float80)"); break;
1639 case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break;
1640 case DW_ATE_HP_float128: printf ("(HP_float128)"); break;
1641 case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break;
1642 case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break;
1643 case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break;
1644 case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break;
1645
1646 default:
1647 if (uvalue >= DW_ATE_lo_user
1648 && uvalue <= DW_ATE_hi_user)
1649 printf ("(user defined type)");
1650 else
1651 printf ("(unknown type)");
1652 break;
1653 }
1654 break;
1655
1656 case DW_AT_accessibility:
1657 switch (uvalue)
1658 {
1659 case DW_ACCESS_public: printf ("(public)"); break;
1660 case DW_ACCESS_protected: printf ("(protected)"); break;
1661 case DW_ACCESS_private: printf ("(private)"); break;
1662 default:
1663 printf ("(unknown accessibility)");
1664 break;
1665 }
1666 break;
1667
1668 case DW_AT_visibility:
1669 switch (uvalue)
1670 {
1671 case DW_VIS_local: printf ("(local)"); break;
1672 case DW_VIS_exported: printf ("(exported)"); break;
1673 case DW_VIS_qualified: printf ("(qualified)"); break;
1674 default: printf ("(unknown visibility)"); break;
1675 }
1676 break;
1677
1678 case DW_AT_virtuality:
1679 switch (uvalue)
1680 {
1681 case DW_VIRTUALITY_none: printf ("(none)"); break;
1682 case DW_VIRTUALITY_virtual: printf ("(virtual)"); break;
1683 case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break;
1684 default: printf ("(unknown virtuality)"); break;
1685 }
1686 break;
1687
1688 case DW_AT_identifier_case:
1689 switch (uvalue)
1690 {
1691 case DW_ID_case_sensitive: printf ("(case_sensitive)"); break;
1692 case DW_ID_up_case: printf ("(up_case)"); break;
1693 case DW_ID_down_case: printf ("(down_case)"); break;
1694 case DW_ID_case_insensitive: printf ("(case_insensitive)"); break;
1695 default: printf ("(unknown case)"); break;
1696 }
1697 break;
1698
1699 case DW_AT_calling_convention:
1700 switch (uvalue)
1701 {
1702 case DW_CC_normal: printf ("(normal)"); break;
1703 case DW_CC_program: printf ("(program)"); break;
1704 case DW_CC_nocall: printf ("(nocall)"); break;
1705 default:
1706 if (uvalue >= DW_CC_lo_user
1707 && uvalue <= DW_CC_hi_user)
1708 printf ("(user defined)");
1709 else
1710 printf ("(unknown convention)");
1711 }
1712 break;
1713
1714 case DW_AT_ordering:
1715 switch (uvalue)
1716 {
1717 case -1: printf ("(undefined)"); break;
1718 case 0: printf ("(row major)"); break;
1719 case 1: printf ("(column major)"); break;
1720 }
1721 break;
1722
1723 case DW_AT_frame_base:
1724 have_frame_base = 1;
1725 case DW_AT_location:
1726 case DW_AT_string_length:
1727 case DW_AT_return_addr:
1728 case DW_AT_data_member_location:
1729 case DW_AT_vtable_elem_location:
1730 case DW_AT_segment:
1731 case DW_AT_static_link:
1732 case DW_AT_use_location:
1733 case DW_AT_GNU_call_site_value:
1734 case DW_AT_GNU_call_site_data_value:
1735 case DW_AT_GNU_call_site_target:
1736 case DW_AT_GNU_call_site_target_clobbered:
1737 if (form == DW_FORM_data4
1738 || form == DW_FORM_data8
1739 || form == DW_FORM_sec_offset)
1740 printf (_("(location list)"));
1741 /* Fall through. */
1742 case DW_AT_allocated:
1743 case DW_AT_associated:
1744 case DW_AT_data_location:
1745 case DW_AT_stride:
1746 case DW_AT_upper_bound:
1747 case DW_AT_lower_bound:
1748 if (block_start)
1749 {
1750 int need_frame_base;
1751
1752 printf ("(");
1753 need_frame_base = decode_location_expression (block_start,
1754 pointer_size,
1755 offset_size,
1756 dwarf_version,
1757 uvalue,
1758 cu_offset, section);
1759 printf (")");
1760 if (need_frame_base && !have_frame_base)
1761 printf (_(" [without DW_AT_frame_base]"));
1762 }
1763 break;
1764
1765 case DW_AT_import:
1766 {
1767 if (form == DW_FORM_ref_sig8)
1768 break;
1769
1770 if (form == DW_FORM_ref1
1771 || form == DW_FORM_ref2
1772 || form == DW_FORM_ref4)
1773 uvalue += cu_offset;
1774
1775 if (uvalue >= section->size)
1776 warn (_("Offset %s used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"),
1777 dwarf_vmatoa ("x", uvalue),
1778 (unsigned long) (orig_data - section->start));
1779 else
1780 {
1781 unsigned long abbrev_number;
1782 abbrev_entry * entry;
1783
1784 abbrev_number = read_leb128 (section->start + uvalue, NULL, 0);
1785
1786 printf ("[Abbrev Number: %ld", abbrev_number);
1787 for (entry = first_abbrev; entry != NULL; entry = entry->next)
1788 if (entry->entry == abbrev_number)
1789 break;
1790 if (entry != NULL)
1791 printf (" (%s)", get_TAG_name (entry->tag));
1792 printf ("]");
1793 }
1794 }
1795 break;
1796
1797 default:
1798 break;
1799 }
1800
1801 return data;
1802 }
1803
1804 static char *
1805 get_AT_name (unsigned long attribute)
1806 {
1807 switch (attribute)
1808 {
1809 case DW_AT_sibling: return "DW_AT_sibling";
1810 case DW_AT_location: return "DW_AT_location";
1811 case DW_AT_name: return "DW_AT_name";
1812 case DW_AT_ordering: return "DW_AT_ordering";
1813 case DW_AT_subscr_data: return "DW_AT_subscr_data";
1814 case DW_AT_byte_size: return "DW_AT_byte_size";
1815 case DW_AT_bit_offset: return "DW_AT_bit_offset";
1816 case DW_AT_bit_size: return "DW_AT_bit_size";
1817 case DW_AT_element_list: return "DW_AT_element_list";
1818 case DW_AT_stmt_list: return "DW_AT_stmt_list";
1819 case DW_AT_low_pc: return "DW_AT_low_pc";
1820 case DW_AT_high_pc: return "DW_AT_high_pc";
1821 case DW_AT_language: return "DW_AT_language";
1822 case DW_AT_member: return "DW_AT_member";
1823 case DW_AT_discr: return "DW_AT_discr";
1824 case DW_AT_discr_value: return "DW_AT_discr_value";
1825 case DW_AT_visibility: return "DW_AT_visibility";
1826 case DW_AT_import: return "DW_AT_import";
1827 case DW_AT_string_length: return "DW_AT_string_length";
1828 case DW_AT_common_reference: return "DW_AT_common_reference";
1829 case DW_AT_comp_dir: return "DW_AT_comp_dir";
1830 case DW_AT_const_value: return "DW_AT_const_value";
1831 case DW_AT_containing_type: return "DW_AT_containing_type";
1832 case DW_AT_default_value: return "DW_AT_default_value";
1833 case DW_AT_inline: return "DW_AT_inline";
1834 case DW_AT_is_optional: return "DW_AT_is_optional";
1835 case DW_AT_lower_bound: return "DW_AT_lower_bound";
1836 case DW_AT_producer: return "DW_AT_producer";
1837 case DW_AT_prototyped: return "DW_AT_prototyped";
1838 case DW_AT_return_addr: return "DW_AT_return_addr";
1839 case DW_AT_start_scope: return "DW_AT_start_scope";
1840 case DW_AT_stride_size: return "DW_AT_stride_size";
1841 case DW_AT_upper_bound: return "DW_AT_upper_bound";
1842 case DW_AT_abstract_origin: return "DW_AT_abstract_origin";
1843 case DW_AT_accessibility: return "DW_AT_accessibility";
1844 case DW_AT_address_class: return "DW_AT_address_class";
1845 case DW_AT_artificial: return "DW_AT_artificial";
1846 case DW_AT_base_types: return "DW_AT_base_types";
1847 case DW_AT_calling_convention: return "DW_AT_calling_convention";
1848 case DW_AT_count: return "DW_AT_count";
1849 case DW_AT_data_member_location: return "DW_AT_data_member_location";
1850 case DW_AT_decl_column: return "DW_AT_decl_column";
1851 case DW_AT_decl_file: return "DW_AT_decl_file";
1852 case DW_AT_decl_line: return "DW_AT_decl_line";
1853 case DW_AT_declaration: return "DW_AT_declaration";
1854 case DW_AT_discr_list: return "DW_AT_discr_list";
1855 case DW_AT_encoding: return "DW_AT_encoding";
1856 case DW_AT_external: return "DW_AT_external";
1857 case DW_AT_frame_base: return "DW_AT_frame_base";
1858 case DW_AT_friend: return "DW_AT_friend";
1859 case DW_AT_identifier_case: return "DW_AT_identifier_case";
1860 case DW_AT_macro_info: return "DW_AT_macro_info";
1861 case DW_AT_namelist_items: return "DW_AT_namelist_items";
1862 case DW_AT_priority: return "DW_AT_priority";
1863 case DW_AT_segment: return "DW_AT_segment";
1864 case DW_AT_specification: return "DW_AT_specification";
1865 case DW_AT_static_link: return "DW_AT_static_link";
1866 case DW_AT_type: return "DW_AT_type";
1867 case DW_AT_use_location: return "DW_AT_use_location";
1868 case DW_AT_variable_parameter: return "DW_AT_variable_parameter";
1869 case DW_AT_virtuality: return "DW_AT_virtuality";
1870 case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location";
1871 /* DWARF 2.1 values. */
1872 case DW_AT_allocated: return "DW_AT_allocated";
1873 case DW_AT_associated: return "DW_AT_associated";
1874 case DW_AT_data_location: return "DW_AT_data_location";
1875 case DW_AT_stride: return "DW_AT_stride";
1876 case DW_AT_entry_pc: return "DW_AT_entry_pc";
1877 case DW_AT_use_UTF8: return "DW_AT_use_UTF8";
1878 case DW_AT_extension: return "DW_AT_extension";
1879 case DW_AT_ranges: return "DW_AT_ranges";
1880 case DW_AT_trampoline: return "DW_AT_trampoline";
1881 case DW_AT_call_column: return "DW_AT_call_column";
1882 case DW_AT_call_file: return "DW_AT_call_file";
1883 case DW_AT_call_line: return "DW_AT_call_line";
1884 case DW_AT_description: return "DW_AT_description";
1885 case DW_AT_binary_scale: return "DW_AT_binary_scale";
1886 case DW_AT_decimal_scale: return "DW_AT_decimal_scale";
1887 case DW_AT_small: return "DW_AT_small";
1888 case DW_AT_decimal_sign: return "DW_AT_decimal_sign";
1889 case DW_AT_digit_count: return "DW_AT_digit_count";
1890 case DW_AT_picture_string: return "DW_AT_picture_string";
1891 case DW_AT_mutable: return "DW_AT_mutable";
1892 case DW_AT_threads_scaled: return "DW_AT_threads_scaled";
1893 case DW_AT_explicit: return "DW_AT_explicit";
1894 case DW_AT_object_pointer: return "DW_AT_object_pointer";
1895 case DW_AT_endianity: return "DW_AT_endianity";
1896 case DW_AT_elemental: return "DW_AT_elemental";
1897 case DW_AT_pure: return "DW_AT_pure";
1898 case DW_AT_recursive: return "DW_AT_recursive";
1899 /* DWARF 4 values. */
1900 case DW_AT_signature: return "DW_AT_signature";
1901 case DW_AT_main_subprogram: return "DW_AT_main_subprogram";
1902 case DW_AT_data_bit_offset: return "DW_AT_data_bit_offset";
1903 case DW_AT_const_expr: return "DW_AT_const_expr";
1904 case DW_AT_enum_class: return "DW_AT_enum_class";
1905 case DW_AT_linkage_name: return "DW_AT_linkage_name";
1906
1907 /* HP and SGI/MIPS extensions. */
1908 case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin";
1909 case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin";
1910 case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin";
1911 case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor";
1912 case DW_AT_MIPS_software_pipeline_depth: return "DW_AT_MIPS_software_pipeline_depth";
1913 case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name";
1914 case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride";
1915 case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name";
1916 case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin";
1917 case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines";
1918
1919 /* HP Extensions. */
1920 case DW_AT_HP_block_index: return "DW_AT_HP_block_index";
1921 case DW_AT_HP_actuals_stmt_list: return "DW_AT_HP_actuals_stmt_list";
1922 case DW_AT_HP_proc_per_section: return "DW_AT_HP_proc_per_section";
1923 case DW_AT_HP_raw_data_ptr: return "DW_AT_HP_raw_data_ptr";
1924 case DW_AT_HP_pass_by_reference: return "DW_AT_HP_pass_by_reference";
1925 case DW_AT_HP_opt_level: return "DW_AT_HP_opt_level";
1926 case DW_AT_HP_prof_version_id: return "DW_AT_HP_prof_version_id";
1927 case DW_AT_HP_opt_flags: return "DW_AT_HP_opt_flags";
1928 case DW_AT_HP_cold_region_low_pc: return "DW_AT_HP_cold_region_low_pc";
1929 case DW_AT_HP_cold_region_high_pc: return "DW_AT_HP_cold_region_high_pc";
1930 case DW_AT_HP_all_variables_modifiable: return "DW_AT_HP_all_variables_modifiable";
1931 case DW_AT_HP_linkage_name: return "DW_AT_HP_linkage_name";
1932 case DW_AT_HP_prof_flags: return "DW_AT_HP_prof_flags";
1933
1934 /* One value is shared by the MIPS and HP extensions: */
1935 case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable";
1936
1937 /* GNU extensions. */
1938 case DW_AT_sf_names: return "DW_AT_sf_names";
1939 case DW_AT_src_info: return "DW_AT_src_info";
1940 case DW_AT_mac_info: return "DW_AT_mac_info";
1941 case DW_AT_src_coords: return "DW_AT_src_coords";
1942 case DW_AT_body_begin: return "DW_AT_body_begin";
1943 case DW_AT_body_end: return "DW_AT_body_end";
1944 case DW_AT_GNU_vector: return "DW_AT_GNU_vector";
1945 case DW_AT_GNU_guarded_by: return "DW_AT_GNU_guarded_by";
1946 case DW_AT_GNU_pt_guarded_by: return "DW_AT_GNU_pt_guarded_by";
1947 case DW_AT_GNU_guarded: return "DW_AT_GNU_guarded";
1948 case DW_AT_GNU_pt_guarded: return "DW_AT_GNU_pt_guarded";
1949 case DW_AT_GNU_locks_excluded: return "DW_AT_GNU_locks_excluded";
1950 case DW_AT_GNU_exclusive_locks_required: return "DW_AT_GNU_exclusive_locks_required";
1951 case DW_AT_GNU_shared_locks_required: return "DW_AT_GNU_shared_locks_required";
1952 case DW_AT_GNU_odr_signature: return "DW_AT_GNU_odr_signature";
1953 case DW_AT_use_GNAT_descriptive_type: return "DW_AT_use_GNAT_descriptive_type";
1954 case DW_AT_GNAT_descriptive_type: return "DW_AT_GNAT_descriptive_type";
1955 case DW_AT_GNU_call_site_value: return "DW_AT_GNU_call_site_value";
1956 case DW_AT_GNU_call_site_data_value: return "DW_AT_GNU_call_site_data_value";
1957 case DW_AT_GNU_call_site_target: return "DW_AT_GNU_call_site_target";
1958 case DW_AT_GNU_call_site_target_clobbered: return "DW_AT_GNU_call_site_target_clobbered";
1959 case DW_AT_GNU_tail_call: return "DW_AT_GNU_tail_call";
1960 case DW_AT_GNU_all_tail_call_sites: return "DW_AT_GNU_all_tail_call_sites";
1961 case DW_AT_GNU_all_call_sites: return "DW_AT_GNU_all_call_sites";
1962 case DW_AT_GNU_all_source_call_sites: return "DW_AT_GNU_all_source_call_sites";
1963
1964 /* UPC extension. */
1965 case DW_AT_upc_threads_scaled: return "DW_AT_upc_threads_scaled";
1966
1967 /* PGI (STMicroelectronics) extensions. */
1968 case DW_AT_PGI_lbase: return "DW_AT_PGI_lbase";
1969 case DW_AT_PGI_soffset: return "DW_AT_PGI_soffset";
1970 case DW_AT_PGI_lstride: return "DW_AT_PGI_lstride";
1971
1972 default:
1973 {
1974 static char buffer[100];
1975
1976 snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"),
1977 attribute);
1978 return buffer;
1979 }
1980 }
1981 }
1982
1983 static unsigned char *
1984 read_and_display_attr (unsigned long attribute,
1985 unsigned long form,
1986 unsigned char * data,
1987 dwarf_vma cu_offset,
1988 dwarf_vma pointer_size,
1989 dwarf_vma offset_size,
1990 int dwarf_version,
1991 debug_info * debug_info_p,
1992 int do_loc,
1993 struct dwarf_section * section)
1994 {
1995 if (!do_loc)
1996 printf (" %-18s:", get_AT_name (attribute));
1997 data = read_and_display_attr_value (attribute, form, data, cu_offset,
1998 pointer_size, offset_size,
1999 dwarf_version, debug_info_p,
2000 do_loc, section);
2001 if (!do_loc)
2002 printf ("\n");
2003 return data;
2004 }
2005
2006
2007 /* Process the contents of a .debug_info section. If do_loc is non-zero
2008 then we are scanning for location lists and we do not want to display
2009 anything to the user. If do_types is non-zero, we are processing
2010 a .debug_types section instead of a .debug_info section. */
2011
2012 static int
2013 process_debug_info (struct dwarf_section *section,
2014 void *file,
2015 enum dwarf_section_display_enum abbrev_sec,
2016 int do_loc,
2017 int do_types)
2018 {
2019 unsigned char *start = section->start;
2020 unsigned char *end = start + section->size;
2021 unsigned char *section_begin;
2022 unsigned int unit;
2023 unsigned int num_units = 0;
2024
2025 if ((do_loc || do_debug_loc || do_debug_ranges)
2026 && num_debug_info_entries == 0
2027 && ! do_types)
2028 {
2029 dwarf_vma length;
2030
2031 /* First scan the section to get the number of comp units. */
2032 for (section_begin = start, num_units = 0; section_begin < end;
2033 num_units ++)
2034 {
2035 /* Read the first 4 bytes. For a 32-bit DWARF section, this
2036 will be the length. For a 64-bit DWARF section, it'll be
2037 the escape code 0xffffffff followed by an 8 byte length. */
2038 length = byte_get (section_begin, 4);
2039
2040 if (length == 0xffffffff)
2041 {
2042 length = byte_get (section_begin + 4, 8);
2043 section_begin += length + 12;
2044 }
2045 else if (length >= 0xfffffff0 && length < 0xffffffff)
2046 {
2047 warn (_("Reserved length value (0x%s) found in section %s\n"),
2048 dwarf_vmatoa ("x", length), section->name);
2049 return 0;
2050 }
2051 else
2052 section_begin += length + 4;
2053
2054 /* Negative values are illegal, they may even cause infinite
2055 looping. This can happen if we can't accurately apply
2056 relocations to an object file. */
2057 if ((signed long) length <= 0)
2058 {
2059 warn (_("Corrupt unit length (0x%s) found in section %s\n"),
2060 dwarf_vmatoa ("x", length), section->name);
2061 return 0;
2062 }
2063 }
2064
2065 if (num_units == 0)
2066 {
2067 error (_("No comp units in %s section ?"), section->name);
2068 return 0;
2069 }
2070
2071 /* Then allocate an array to hold the information. */
2072 debug_information = (debug_info *) cmalloc (num_units,
2073 sizeof (* debug_information));
2074 if (debug_information == NULL)
2075 {
2076 error (_("Not enough memory for a debug info array of %u entries"),
2077 num_units);
2078 return 0;
2079 }
2080 }
2081
2082 if (!do_loc)
2083 {
2084 if (dwarf_start_die == 0)
2085 printf (_("Contents of the %s section:\n\n"), section->name);
2086
2087 load_debug_section (str, file);
2088 }
2089
2090 load_debug_section (abbrev_sec, file);
2091 if (debug_displays [abbrev_sec].section.start == NULL)
2092 {
2093 warn (_("Unable to locate %s section!\n"),
2094 debug_displays [abbrev_sec].section.name);
2095 return 0;
2096 }
2097
2098 for (section_begin = start, unit = 0; start < end; unit++)
2099 {
2100 DWARF2_Internal_CompUnit compunit;
2101 unsigned char *hdrptr;
2102 unsigned char *tags;
2103 int level, last_level, saved_level;
2104 dwarf_vma cu_offset;
2105 int offset_size;
2106 int initial_length_size;
2107 unsigned char signature[8] = { 0 };
2108 dwarf_vma type_offset = 0;
2109
2110 hdrptr = start;
2111
2112 compunit.cu_length = byte_get (hdrptr, 4);
2113 hdrptr += 4;
2114
2115 if (compunit.cu_length == 0xffffffff)
2116 {
2117 compunit.cu_length = byte_get (hdrptr, 8);
2118 hdrptr += 8;
2119 offset_size = 8;
2120 initial_length_size = 12;
2121 }
2122 else
2123 {
2124 offset_size = 4;
2125 initial_length_size = 4;
2126 }
2127
2128 compunit.cu_version = byte_get (hdrptr, 2);
2129 hdrptr += 2;
2130
2131 cu_offset = start - section_begin;
2132
2133 compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size);
2134 hdrptr += offset_size;
2135
2136 compunit.cu_pointer_size = byte_get (hdrptr, 1);
2137 hdrptr += 1;
2138
2139 if (do_types)
2140 {
2141 int i;
2142
2143 for (i = 0; i < 8; i++)
2144 {
2145 signature[i] = byte_get (hdrptr, 1);
2146 hdrptr += 1;
2147 }
2148
2149 type_offset = byte_get (hdrptr, offset_size);
2150 hdrptr += offset_size;
2151 }
2152
2153 if ((do_loc || do_debug_loc || do_debug_ranges)
2154 && num_debug_info_entries == 0
2155 && ! do_types)
2156 {
2157 debug_information [unit].cu_offset = cu_offset;
2158 debug_information [unit].pointer_size
2159 = compunit.cu_pointer_size;
2160 debug_information [unit].offset_size = offset_size;
2161 debug_information [unit].dwarf_version = compunit.cu_version;
2162 debug_information [unit].base_address = 0;
2163 debug_information [unit].loc_offsets = NULL;
2164 debug_information [unit].have_frame_base = NULL;
2165 debug_information [unit].max_loc_offsets = 0;
2166 debug_information [unit].num_loc_offsets = 0;
2167 debug_information [unit].range_lists = NULL;
2168 debug_information [unit].max_range_lists= 0;
2169 debug_information [unit].num_range_lists = 0;
2170 }
2171
2172 if (!do_loc && dwarf_start_die == 0)
2173 {
2174 printf (_(" Compilation Unit @ offset 0x%s:\n"),
2175 dwarf_vmatoa ("x", cu_offset));
2176 printf (_(" Length: 0x%s (%s)\n"),
2177 dwarf_vmatoa ("x", compunit.cu_length),
2178 offset_size == 8 ? "64-bit" : "32-bit");
2179 printf (_(" Version: %d\n"), compunit.cu_version);
2180 printf (_(" Abbrev Offset: %s\n"),
2181 dwarf_vmatoa ("d", compunit.cu_abbrev_offset));
2182 printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
2183 if (do_types)
2184 {
2185 int i;
2186 printf (_(" Signature: "));
2187 for (i = 0; i < 8; i++)
2188 printf ("%02x", signature[i]);
2189 printf ("\n");
2190 printf (_(" Type Offset: 0x%s\n"),
2191 dwarf_vmatoa ("x", type_offset));
2192 }
2193 }
2194
2195 if (cu_offset + compunit.cu_length + initial_length_size
2196 > section->size)
2197 {
2198 warn (_("Debug info is corrupted, length of CU at %s"
2199 " extends beyond end of section (length = %s)\n"),
2200 dwarf_vmatoa ("x", cu_offset),
2201 dwarf_vmatoa ("x", compunit.cu_length));
2202 break;
2203 }
2204 tags = hdrptr;
2205 start += compunit.cu_length + initial_length_size;
2206
2207 if (compunit.cu_version != 2
2208 && compunit.cu_version != 3
2209 && compunit.cu_version != 4)
2210 {
2211 warn (_("CU at offset %s contains corrupt or "
2212 "unsupported version number: %d.\n"),
2213 dwarf_vmatoa ("x", cu_offset), compunit.cu_version);
2214 continue;
2215 }
2216
2217 free_abbrevs ();
2218
2219 /* Process the abbrevs used by this compilation unit. DWARF
2220 sections under Mach-O have non-zero addresses. */
2221 if (compunit.cu_abbrev_offset >= debug_displays [abbrev_sec].section.size)
2222 warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"),
2223 (unsigned long) compunit.cu_abbrev_offset,
2224 (unsigned long) debug_displays [abbrev_sec].section.size);
2225 else
2226 process_abbrev_section
2227 ((unsigned char *) debug_displays [abbrev_sec].section.start
2228 + compunit.cu_abbrev_offset,
2229 (unsigned char *) debug_displays [abbrev_sec].section.start
2230 + debug_displays [abbrev_sec].section.size);
2231
2232 level = 0;
2233 last_level = level;
2234 saved_level = -1;
2235 while (tags < start)
2236 {
2237 unsigned int bytes_read;
2238 unsigned long abbrev_number;
2239 unsigned long die_offset;
2240 abbrev_entry *entry;
2241 abbrev_attr *attr;
2242 int do_printing = 1;
2243
2244 die_offset = tags - section_begin;
2245
2246 abbrev_number = read_leb128 (tags, & bytes_read, 0);
2247 tags += bytes_read;
2248
2249 /* A null DIE marks the end of a list of siblings or it may also be
2250 a section padding. */
2251 if (abbrev_number == 0)
2252 {
2253 /* Check if it can be a section padding for the last CU. */
2254 if (level == 0 && start == end)
2255 {
2256 unsigned char *chk;
2257
2258 for (chk = tags; chk < start; chk++)
2259 if (*chk != 0)
2260 break;
2261 if (chk == start)
2262 break;
2263 }
2264
2265 --level;
2266 if (level < 0)
2267 {
2268 static unsigned num_bogus_warns = 0;
2269
2270 if (num_bogus_warns < 3)
2271 {
2272 warn (_("Bogus end-of-siblings marker detected at offset %lx in .debug_info section\n"),
2273 die_offset);
2274 num_bogus_warns ++;
2275 if (num_bogus_warns == 3)
2276 warn (_("Further warnings about bogus end-of-sibling markers suppressed\n"));
2277 }
2278 }
2279 if (dwarf_start_die != 0 && level < saved_level)
2280 return 1;
2281 continue;
2282 }
2283
2284 if (!do_loc)
2285 {
2286 if (dwarf_start_die != 0 && die_offset < dwarf_start_die)
2287 do_printing = 0;
2288 else
2289 {
2290 if (dwarf_start_die != 0 && die_offset == dwarf_start_die)
2291 saved_level = level;
2292 do_printing = (dwarf_cutoff_level == -1
2293 || level < dwarf_cutoff_level);
2294 if (do_printing)
2295 printf (_(" <%d><%lx>: Abbrev Number: %lu"),
2296 level, die_offset, abbrev_number);
2297 else if (dwarf_cutoff_level == -1
2298 || last_level < dwarf_cutoff_level)
2299 printf (_(" <%d><%lx>: ...\n"), level, die_offset);
2300 last_level = level;
2301 }
2302 }
2303
2304 /* Scan through the abbreviation list until we reach the
2305 correct entry. */
2306 for (entry = first_abbrev;
2307 entry && entry->entry != abbrev_number;
2308 entry = entry->next)
2309 continue;
2310
2311 if (entry == NULL)
2312 {
2313 if (!do_loc && do_printing)
2314 {
2315 printf ("\n");
2316 fflush (stdout);
2317 }
2318 warn (_("DIE at offset %lx refers to abbreviation number %lu which does not exist\n"),
2319 die_offset, abbrev_number);
2320 return 0;
2321 }
2322
2323 if (!do_loc && do_printing)
2324 printf (" (%s)\n", get_TAG_name (entry->tag));
2325
2326 switch (entry->tag)
2327 {
2328 default:
2329 need_base_address = 0;
2330 break;
2331 case DW_TAG_compile_unit:
2332 need_base_address = 1;
2333 break;
2334 case DW_TAG_entry_point:
2335 case DW_TAG_subprogram:
2336 need_base_address = 0;
2337 /* Assuming that there is no DW_AT_frame_base. */
2338 have_frame_base = 0;
2339 break;
2340 }
2341
2342 for (attr = entry->first_attr; attr; attr = attr->next)
2343 {
2344 debug_info *arg;
2345
2346 if (! do_loc && do_printing)
2347 /* Show the offset from where the tag was extracted. */
2348 printf (" <%lx>", (unsigned long)(tags - section_begin));
2349
2350 arg = debug_information;
2351 if (debug_information)
2352 arg += unit;
2353
2354 tags = read_and_display_attr (attr->attribute,
2355 attr->form,
2356 tags, cu_offset,
2357 compunit.cu_pointer_size,
2358 offset_size,
2359 compunit.cu_version,
2360 arg,
2361 do_loc || ! do_printing, section);
2362 }
2363
2364 if (entry->children)
2365 ++level;
2366 }
2367 }
2368
2369 /* Set num_debug_info_entries here so that it can be used to check if
2370 we need to process .debug_loc and .debug_ranges sections. */
2371 if ((do_loc || do_debug_loc || do_debug_ranges)
2372 && num_debug_info_entries == 0
2373 && ! do_types)
2374 num_debug_info_entries = num_units;
2375
2376 if (!do_loc)
2377 printf ("\n");
2378
2379 return 1;
2380 }
2381
2382 /* Locate and scan the .debug_info section in the file and record the pointer
2383 sizes and offsets for the compilation units in it. Usually an executable
2384 will have just one pointer size, but this is not guaranteed, and so we try
2385 not to make any assumptions. Returns zero upon failure, or the number of
2386 compilation units upon success. */
2387
2388 static unsigned int
2389 load_debug_info (void * file)
2390 {
2391 /* Reset the last pointer size so that we can issue correct error
2392 messages if we are displaying the contents of more than one section. */
2393 last_pointer_size = 0;
2394 warned_about_missing_comp_units = FALSE;
2395
2396 /* If we have already tried and failed to load the .debug_info
2397 section then do not bother to repear the task. */
2398 if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
2399 return 0;
2400
2401 /* If we already have the information there is nothing else to do. */
2402 if (num_debug_info_entries > 0)
2403 return num_debug_info_entries;
2404
2405 if (load_debug_section (info, file)
2406 && process_debug_info (&debug_displays [info].section, file, abbrev, 1, 0))
2407 return num_debug_info_entries;
2408
2409 num_debug_info_entries = DEBUG_INFO_UNAVAILABLE;
2410 return 0;
2411 }
2412
2413 static int
2414 display_debug_lines_raw (struct dwarf_section *section,
2415 unsigned char *data,
2416 unsigned char *end)
2417 {
2418 unsigned char *start = section->start;
2419
2420 printf (_("Raw dump of debug contents of section %s:\n\n"),
2421 section->name);
2422
2423 while (data < end)
2424 {
2425 DWARF2_Internal_LineInfo linfo;
2426 unsigned char *standard_opcodes;
2427 unsigned char *end_of_sequence;
2428 unsigned char *hdrptr;
2429 unsigned long hdroff;
2430 int initial_length_size;
2431 int offset_size;
2432 int i;
2433
2434 hdrptr = data;
2435 hdroff = hdrptr - start;
2436
2437 /* Check the length of the block. */
2438 linfo.li_length = byte_get (hdrptr, 4);
2439 hdrptr += 4;
2440
2441 if (linfo.li_length == 0xffffffff)
2442 {
2443 /* This section is 64-bit DWARF 3. */
2444 linfo.li_length = byte_get (hdrptr, 8);
2445 hdrptr += 8;
2446 offset_size = 8;
2447 initial_length_size = 12;
2448 }
2449 else
2450 {
2451 offset_size = 4;
2452 initial_length_size = 4;
2453 }
2454
2455 if (linfo.li_length + initial_length_size > section->size)
2456 {
2457 warn
2458 (_("The information in section %s appears to be corrupt - the section is too small\n"),
2459 section->name);
2460 return 0;
2461 }
2462
2463 /* Check its version number. */
2464 linfo.li_version = byte_get (hdrptr, 2);
2465 hdrptr += 2;
2466 if (linfo.li_version != 2
2467 && linfo.li_version != 3
2468 && linfo.li_version != 4)
2469 {
2470 warn (_("Only DWARF version 2, 3 and 4 line info is currently supported.\n"));
2471 return 0;
2472 }
2473
2474 linfo.li_prologue_length = byte_get (hdrptr, offset_size);
2475 hdrptr += offset_size;
2476 linfo.li_min_insn_length = byte_get (hdrptr, 1);
2477 hdrptr++;
2478 if (linfo.li_version >= 4)
2479 {
2480 linfo.li_max_ops_per_insn = byte_get (hdrptr, 1);
2481 hdrptr++;
2482 if (linfo.li_max_ops_per_insn == 0)
2483 {
2484 warn (_("Invalid maximum operations per insn.\n"));
2485 return 0;
2486 }
2487 }
2488 else
2489 linfo.li_max_ops_per_insn = 1;
2490 linfo.li_default_is_stmt = byte_get (hdrptr, 1);
2491 hdrptr++;
2492 linfo.li_line_base = byte_get (hdrptr, 1);
2493 hdrptr++;
2494 linfo.li_line_range = byte_get (hdrptr, 1);
2495 hdrptr++;
2496 linfo.li_opcode_base = byte_get (hdrptr, 1);
2497 hdrptr++;
2498
2499 /* Sign extend the line base field. */
2500 linfo.li_line_base <<= 24;
2501 linfo.li_line_base >>= 24;
2502
2503 printf (_(" Offset: 0x%lx\n"), hdroff);
2504 printf (_(" Length: %ld\n"), (long) linfo.li_length);
2505 printf (_(" DWARF Version: %d\n"), linfo.li_version);
2506 printf (_(" Prologue Length: %d\n"), linfo.li_prologue_length);
2507 printf (_(" Minimum Instruction Length: %d\n"), linfo.li_min_insn_length);
2508 if (linfo.li_version >= 4)
2509 printf (_(" Maximum Ops per Instruction: %d\n"), linfo.li_max_ops_per_insn);
2510 printf (_(" Initial value of 'is_stmt': %d\n"), linfo.li_default_is_stmt);
2511 printf (_(" Line Base: %d\n"), linfo.li_line_base);
2512 printf (_(" Line Range: %d\n"), linfo.li_line_range);
2513 printf (_(" Opcode Base: %d\n"), linfo.li_opcode_base);
2514
2515 end_of_sequence = data + linfo.li_length + initial_length_size;
2516
2517 reset_state_machine (linfo.li_default_is_stmt);
2518
2519 /* Display the contents of the Opcodes table. */
2520 standard_opcodes = hdrptr;
2521
2522 printf (_("\n Opcodes:\n"));
2523
2524 for (i = 1; i < linfo.li_opcode_base; i++)
2525 printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]);
2526
2527 /* Display the contents of the Directory table. */
2528 data = standard_opcodes + linfo.li_opcode_base - 1;
2529
2530 if (*data == 0)
2531 printf (_("\n The Directory Table is empty.\n"));
2532 else
2533 {
2534 printf (_("\n The Directory Table:\n"));
2535
2536 while (*data != 0)
2537 {
2538 printf (" %s\n", data);
2539
2540 data += strlen ((char *) data) + 1;
2541 }
2542 }
2543
2544 /* Skip the NUL at the end of the table. */
2545 data++;
2546
2547 /* Display the contents of the File Name table. */
2548 if (*data == 0)
2549 printf (_("\n The File Name Table is empty.\n"));
2550 else
2551 {
2552 printf (_("\n The File Name Table:\n"));
2553 printf (_(" Entry\tDir\tTime\tSize\tName\n"));
2554
2555 while (*data != 0)
2556 {
2557 unsigned char *name;
2558 unsigned int bytes_read;
2559
2560 printf (" %d\t", ++state_machine_regs.last_file_entry);
2561 name = data;
2562
2563 data += strlen ((char *) data) + 1;
2564
2565 printf ("%s\t",
2566 dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
2567 data += bytes_read;
2568 printf ("%s\t",
2569 dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
2570 data += bytes_read;
2571 printf ("%s\t",
2572 dwarf_vmatoa ("u", read_leb128 (data, & bytes_read, 0)));
2573 data += bytes_read;
2574 printf ("%s\n", name);
2575 }
2576 }
2577
2578 /* Skip the NUL at the end of the table. */
2579 data++;
2580
2581 /* Now display the statements. */
2582 printf (_("\n Line Number Statements:\n"));
2583
2584 while (data < end_of_sequence)
2585 {
2586 unsigned char op_code;
2587 dwarf_signed_vma adv;
2588 dwarf_vma uladv;
2589 unsigned int bytes_read;
2590
2591 op_code = *data++;
2592
2593 if (op_code >= linfo.li_opcode_base)
2594 {
2595 op_code -= linfo.li_opcode_base;
2596 uladv = (op_code / linfo.li_line_range);
2597 if (linfo.li_max_ops_per_insn == 1)
2598 {
2599 uladv *= linfo.li_min_insn_length;
2600 state_machine_regs.address += uladv;
2601 printf (_(" Special opcode %d: "
2602 "advance Address by %s to 0x%s"),
2603 op_code, dwarf_vmatoa ("u", uladv),
2604 dwarf_vmatoa ("x", state_machine_regs.address));
2605 }
2606 else
2607 {
2608 state_machine_regs.address
2609 += ((state_machine_regs.op_index + uladv)
2610 / linfo.li_max_ops_per_insn)
2611 * linfo.li_min_insn_length;
2612 state_machine_regs.op_index
2613 = (state_machine_regs.op_index + uladv)
2614 % linfo.li_max_ops_per_insn;
2615 printf (_(" Special opcode %d: "
2616 "advance Address by %s to 0x%s[%d]"),
2617 op_code, dwarf_vmatoa ("u", uladv),
2618 dwarf_vmatoa ("x", state_machine_regs.address),
2619 state_machine_regs.op_index);
2620 }
2621 adv = (op_code % linfo.li_line_range) + linfo.li_line_base;
2622 state_machine_regs.line += adv;
2623 printf (_(" and Line by %s to %d\n"),
2624 dwarf_vmatoa ("d", adv), state_machine_regs.line);
2625 }
2626 else switch (op_code)
2627 {
2628 case DW_LNS_extended_op:
2629 data += process_extended_line_op (data, linfo.li_default_is_stmt);
2630 break;
2631
2632 case DW_LNS_copy:
2633 printf (_(" Copy\n"));
2634 break;
2635
2636 case DW_LNS_advance_pc:
2637 uladv = read_leb128 (data, & bytes_read, 0);
2638 data += bytes_read;
2639 if (linfo.li_max_ops_per_insn == 1)
2640 {
2641 uladv *= linfo.li_min_insn_length;
2642 state_machine_regs.address += uladv;
2643 printf (_(" Advance PC by %s to 0x%s\n"),
2644 dwarf_vmatoa ("u", uladv),
2645 dwarf_vmatoa ("x", state_machine_regs.address));
2646 }
2647 else
2648 {
2649 state_machine_regs.address
2650 += ((state_machine_regs.op_index + uladv)
2651 / linfo.li_max_ops_per_insn)
2652 * linfo.li_min_insn_length;
2653 state_machine_regs.op_index
2654 = (state_machine_regs.op_index + uladv)
2655 % linfo.li_max_ops_per_insn;
2656 printf (_(" Advance PC by %s to 0x%s[%d]\n"),
2657 dwarf_vmatoa ("u", uladv),
2658 dwarf_vmatoa ("x", state_machine_regs.address),
2659 state_machine_regs.op_index);
2660 }
2661 break;
2662
2663 case DW_LNS_advance_line:
2664 adv = read_sleb128 (data, & bytes_read);
2665 data += bytes_read;
2666 state_machine_regs.line += adv;
2667 printf (_(" Advance Line by %s to %d\n"),
2668 dwarf_vmatoa ("d", adv),
2669 state_machine_regs.line);
2670 break;
2671
2672 case DW_LNS_set_file:
2673 adv = read_leb128 (data, & bytes_read, 0);
2674 data += bytes_read;
2675 printf (_(" Set File Name to entry %s in the File Name Table\n"),
2676 dwarf_vmatoa ("d", adv));
2677 state_machine_regs.file = adv;
2678 break;
2679
2680 case DW_LNS_set_column:
2681 uladv = read_leb128 (data, & bytes_read, 0);
2682 data += bytes_read;
2683 printf (_(" Set column to %s\n"),
2684 dwarf_vmatoa ("u", uladv));
2685 state_machine_regs.column = uladv;
2686 break;
2687
2688 case DW_LNS_negate_stmt:
2689 adv = state_machine_regs.is_stmt;
2690 adv = ! adv;
2691 printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv));
2692 state_machine_regs.is_stmt = adv;
2693 break;
2694
2695 case DW_LNS_set_basic_block:
2696 printf (_(" Set basic block\n"));
2697 state_machine_regs.basic_block = 1;
2698 break;
2699
2700 case DW_LNS_const_add_pc:
2701 uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range);
2702 if (linfo.li_max_ops_per_insn)
2703 {
2704 uladv *= linfo.li_min_insn_length;
2705 state_machine_regs.address += uladv;
2706 printf (_(" Advance PC by constant %s to 0x%s\n"),
2707 dwarf_vmatoa ("u", uladv),
2708 dwarf_vmatoa ("x", state_machine_regs.address));
2709 }
2710 else
2711 {
2712 state_machine_regs.address
2713 += ((state_machine_regs.op_index + uladv)
2714 / linfo.li_max_ops_per_insn)
2715 * linfo.li_min_insn_length;
2716 state_machine_regs.op_index
2717 = (state_machine_regs.op_index + uladv)
2718 % linfo.li_max_ops_per_insn;
2719 printf (_(" Advance PC by constant %s to 0x%s[%d]\n"),
2720 dwarf_vmatoa ("u", uladv),
2721 dwarf_vmatoa ("x", state_machine_regs.address),
2722 state_machine_regs.op_index);
2723 }
2724 break;
2725
2726 case DW_LNS_fixed_advance_pc:
2727 uladv = byte_get (data, 2);
2728 data += 2;
2729 state_machine_regs.address += uladv;
2730 state_machine_regs.op_index = 0;
2731 printf (_(" Advance PC by fixed size amount %s to 0x%s\n"),
2732 dwarf_vmatoa ("u", uladv),
2733 dwarf_vmatoa ("x", state_machine_regs.address));
2734 break;
2735
2736 case DW_LNS_set_prologue_end:
2737 printf (_(" Set prologue_end to true\n"));
2738 break;
2739
2740 case DW_LNS_set_epilogue_begin:
2741 printf (_(" Set epilogue_begin to true\n"));
2742 break;
2743
2744 case DW_LNS_set_isa:
2745 uladv = read_leb128 (data, & bytes_read, 0);
2746 data += bytes_read;
2747 printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv));
2748 break;
2749
2750 default:
2751 printf (_(" Unknown opcode %d with operands: "), op_code);
2752
2753 for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
2754 {
2755 printf ("0x%s%s", dwarf_vmatoa ("x", read_leb128 (data,
2756 &bytes_read, 0)),
2757 i == 1 ? "" : ", ");
2758 data += bytes_read;
2759 }
2760 putchar ('\n');
2761 break;
2762 }
2763 }
2764 putchar ('\n');
2765 }
2766
2767 return 1;
2768 }
2769
2770 typedef struct
2771 {
2772 unsigned char *name;
2773 unsigned int directory_index;
2774 unsigned int modification_date;
2775 unsigned int length;
2776 } File_Entry;
2777
2778 /* Output a decoded representation of the .debug_line section. */
2779
2780 static int
2781 display_debug_lines_decoded (struct dwarf_section *section,
2782 unsigned char *data,
2783 unsigned char *end)
2784 {
2785 printf (_("Decoded dump of debug contents of section %s:\n\n"),
2786 section->name);
2787
2788 while (data < end)
2789 {
2790 /* This loop amounts to one iteration per compilation unit. */
2791 DWARF2_Internal_LineInfo linfo;
2792 unsigned char *standard_opcodes;
2793 unsigned char *end_of_sequence;
2794 unsigned char *hdrptr;
2795 int initial_length_size;
2796 int offset_size;
2797 int i;
2798 File_Entry *file_table = NULL;
2799 unsigned char **directory_table = NULL;
2800
2801 hdrptr = data;
2802
2803 /* Extract information from the Line Number Program Header.
2804 (section 6.2.4 in the Dwarf3 doc). */
2805
2806 /* Get the length of this CU's line number information block. */
2807 linfo.li_length = byte_get (hdrptr, 4);
2808 hdrptr += 4;
2809
2810 if (linfo.li_length == 0xffffffff)
2811 {
2812 /* This section is 64-bit DWARF 3. */
2813 linfo.li_length = byte_get (hdrptr, 8);
2814 hdrptr += 8;
2815 offset_size = 8;
2816 initial_length_size = 12;
2817 }
2818 else
2819 {
2820 offset_size = 4;
2821 initial_length_size = 4;
2822 }
2823
2824 if (linfo.li_length + initial_length_size > section->size)
2825 {
2826 warn (_("The line info appears to be corrupt - "
2827 "the section is too small\n"));
2828 return 0;
2829 }
2830
2831 /* Get this CU's Line Number Block version number. */
2832 linfo.li_version = byte_get (hdrptr, 2);
2833 hdrptr += 2;
2834 if (linfo.li_version != 2
2835 && linfo.li_version != 3
2836 && linfo.li_version != 4)
2837 {
2838 warn (_("Only DWARF version 2, 3 and 4 line info is currently "
2839 "supported.\n"));
2840 return 0;
2841 }
2842
2843 linfo.li_prologue_length = byte_get (hdrptr, offset_size);
2844 hdrptr += offset_size;
2845 linfo.li_min_insn_length = byte_get (hdrptr, 1);
2846 hdrptr++;
2847 if (linfo.li_version >= 4)
2848 {
2849 linfo.li_max_ops_per_insn = byte_get (hdrptr, 1);
2850 hdrptr++;
2851 if (linfo.li_max_ops_per_insn == 0)
2852 {
2853 warn (_("Invalid maximum operations per insn.\n"));
2854 return 0;
2855 }
2856 }
2857 else
2858 linfo.li_max_ops_per_insn = 1;
2859 linfo.li_default_is_stmt = byte_get (hdrptr, 1);
2860 hdrptr++;
2861 linfo.li_line_base = byte_get (hdrptr, 1);
2862 hdrptr++;
2863 linfo.li_line_range = byte_get (hdrptr, 1);
2864 hdrptr++;
2865 linfo.li_opcode_base = byte_get (hdrptr, 1);
2866 hdrptr++;
2867
2868 /* Sign extend the line base field. */
2869 linfo.li_line_base <<= 24;
2870 linfo.li_line_base >>= 24;
2871
2872 /* Find the end of this CU's Line Number Information Block. */
2873 end_of_sequence = data + linfo.li_length + initial_length_size;
2874
2875 reset_state_machine (linfo.li_default_is_stmt);
2876
2877 /* Save a pointer to the contents of the Opcodes table. */
2878 standard_opcodes = hdrptr;
2879
2880 /* Traverse the Directory table just to count entries. */
2881 data = standard_opcodes + linfo.li_opcode_base - 1;
2882 if (*data != 0)
2883 {
2884 unsigned int n_directories = 0;
2885 unsigned char *ptr_directory_table = data;
2886
2887 while (*data != 0)
2888 {
2889 data += strlen ((char *) data) + 1;
2890 n_directories++;
2891 }
2892
2893 /* Go through the directory table again to save the directories. */
2894 directory_table = (unsigned char **)
2895 xmalloc (n_directories * sizeof (unsigned char *));
2896
2897 i = 0;
2898 while (*ptr_directory_table != 0)
2899 {
2900 directory_table[i] = ptr_directory_table;
2901 ptr_directory_table += strlen ((char *) ptr_directory_table) + 1;
2902 i++;
2903 }
2904 }
2905 /* Skip the NUL at the end of the table. */
2906 data++;
2907
2908 /* Traverse the File Name table just to count the entries. */
2909 if (*data != 0)
2910 {
2911 unsigned int n_files = 0;
2912 unsigned char *ptr_file_name_table = data;
2913
2914 while (*data != 0)
2915 {
2916 unsigned int bytes_read;
2917
2918 /* Skip Name, directory index, last modification time and length
2919 of file. */
2920 data += strlen ((char *) data) + 1;
2921 read_leb128 (data, & bytes_read, 0);
2922 data += bytes_read;
2923 read_leb128 (data, & bytes_read, 0);
2924 data += bytes_read;
2925 read_leb128 (data, & bytes_read, 0);
2926 data += bytes_read;
2927
2928 n_files++;
2929 }
2930
2931 /* Go through the file table again to save the strings. */
2932 file_table = (File_Entry *) xmalloc (n_files * sizeof (File_Entry));
2933
2934 i = 0;
2935 while (*ptr_file_name_table != 0)
2936 {
2937 unsigned int bytes_read;
2938
2939 file_table[i].name = ptr_file_name_table;
2940 ptr_file_name_table += strlen ((char *) ptr_file_name_table) + 1;
2941
2942 /* We are not interested in directory, time or size. */
2943 file_table[i].directory_index = read_leb128 (ptr_file_name_table,
2944 & bytes_read, 0);
2945 ptr_file_name_table += bytes_read;
2946 file_table[i].modification_date = read_leb128 (ptr_file_name_table,
2947 & bytes_read, 0);
2948 ptr_file_name_table += bytes_read;
2949 file_table[i].length = read_leb128 (ptr_file_name_table, & bytes_read, 0);
2950 ptr_file_name_table += bytes_read;
2951 i++;
2952 }
2953 i = 0;
2954
2955 /* Print the Compilation Unit's name and a header. */
2956 if (directory_table == NULL)
2957 {
2958 printf (_("CU: %s:\n"), file_table[0].name);
2959 printf (_("File name Line number Starting address\n"));
2960 }
2961 else
2962 {
2963 if (do_wide || strlen ((char *) directory_table[0]) < 76)
2964 printf (_("CU: %s/%s:\n"), directory_table[0],
2965 file_table[0].name);
2966 else
2967 printf ("%s:\n", file_table[0].name);
2968
2969 printf (_("File name Line number Starting address\n"));
2970 }
2971 }
2972
2973 /* Skip the NUL at the end of the table. */
2974 data++;
2975
2976 /* This loop iterates through the Dwarf Line Number Program. */
2977 while (data < end_of_sequence)
2978 {
2979 unsigned char op_code;
2980 int adv;
2981 unsigned long int uladv;
2982 unsigned int bytes_read;
2983 int is_special_opcode = 0;
2984
2985 op_code = *data++;
2986
2987 if (op_code >= linfo.li_opcode_base)
2988 {
2989 op_code -= linfo.li_opcode_base;
2990 uladv = (op_code / linfo.li_line_range);
2991 if (linfo.li_max_ops_per_insn == 1)
2992 {
2993 uladv *= linfo.li_min_insn_length;
2994 state_machine_regs.address += uladv;
2995 }
2996 else
2997 {
2998 state_machine_regs.address
2999 += ((state_machine_regs.op_index + uladv)
3000 / linfo.li_max_ops_per_insn)
3001 * linfo.li_min_insn_length;
3002 state_machine_regs.op_index
3003 = (state_machine_regs.op_index + uladv)
3004 % linfo.li_max_ops_per_insn;
3005 }
3006
3007 adv = (op_code % linfo.li_line_range) + linfo.li_line_base;
3008 state_machine_regs.line += adv;
3009 is_special_opcode = 1;
3010 }
3011 else switch (op_code)
3012 {
3013 case DW_LNS_extended_op:
3014 {
3015 unsigned int ext_op_code_len;
3016 unsigned char ext_op_code;
3017 unsigned char *op_code_data = data;
3018
3019 ext_op_code_len = read_leb128 (op_code_data, &bytes_read, 0);
3020 op_code_data += bytes_read;
3021
3022 if (ext_op_code_len == 0)
3023 {
3024 warn (_("badly formed extended line op encountered!\n"));
3025 break;
3026 }
3027 ext_op_code_len += bytes_read;
3028 ext_op_code = *op_code_data++;
3029
3030 switch (ext_op_code)
3031 {
3032 case DW_LNE_end_sequence:
3033 reset_state_machine (linfo.li_default_is_stmt);
3034 break;
3035 case DW_LNE_set_address:
3036 state_machine_regs.address =
3037 byte_get (op_code_data, ext_op_code_len - bytes_read - 1);
3038 state_machine_regs.op_index = 0;
3039 break;
3040 case DW_LNE_define_file:
3041 {
3042 unsigned int dir_index = 0;
3043
3044 ++state_machine_regs.last_file_entry;
3045 op_code_data += strlen ((char *) op_code_data) + 1;
3046 dir_index = read_leb128 (op_code_data, & bytes_read, 0);
3047 op_code_data += bytes_read;
3048 read_leb128 (op_code_data, & bytes_read, 0);
3049 op_code_data += bytes_read;
3050 read_leb128 (op_code_data, & bytes_read, 0);
3051
3052 printf ("%s:\n", directory_table[dir_index]);
3053 break;
3054 }
3055 default:
3056 printf (_("UNKNOWN: length %d\n"), ext_op_code_len - bytes_read);
3057 break;
3058 }
3059 data += ext_op_code_len;
3060 break;
3061 }
3062 case DW_LNS_copy:
3063 break;
3064
3065 case DW_LNS_advance_pc:
3066 uladv = read_leb128 (data, & bytes_read, 0);
3067 data += bytes_read;
3068 if (linfo.li_max_ops_per_insn == 1)
3069 {
3070 uladv *= linfo.li_min_insn_length;
3071 state_machine_regs.address += uladv;
3072 }
3073 else
3074 {
3075 state_machine_regs.address
3076 += ((state_machine_regs.op_index + uladv)
3077 / linfo.li_max_ops_per_insn)
3078 * linfo.li_min_insn_length;
3079 state_machine_regs.op_index
3080 = (state_machine_regs.op_index + uladv)
3081 % linfo.li_max_ops_per_insn;
3082 }
3083 break;
3084
3085 case DW_LNS_advance_line:
3086 adv = read_sleb128 (data, & bytes_read);
3087 data += bytes_read;
3088 state_machine_regs.line += adv;
3089 break;
3090
3091 case DW_LNS_set_file:
3092 adv = read_leb128 (data, & bytes_read, 0);
3093 data += bytes_read;
3094 state_machine_regs.file = adv;
3095 if (file_table[state_machine_regs.file - 1].directory_index == 0)
3096 {
3097 /* If directory index is 0, that means current directory. */
3098 printf ("\n./%s:[++]\n",
3099 file_table[state_machine_regs.file - 1].name);
3100 }
3101 else
3102 {
3103 /* The directory index starts counting at 1. */
3104 printf ("\n%s/%s:\n",
3105 directory_table[file_table[state_machine_regs.file - 1].directory_index - 1],
3106 file_table[state_machine_regs.file - 1].name);
3107 }
3108 break;
3109
3110 case DW_LNS_set_column:
3111 uladv = read_leb128 (data, & bytes_read, 0);
3112 data += bytes_read;
3113 state_machine_regs.column = uladv;
3114 break;
3115
3116 case DW_LNS_negate_stmt:
3117 adv = state_machine_regs.is_stmt;
3118 adv = ! adv;
3119 state_machine_regs.is_stmt = adv;
3120 break;
3121
3122 case DW_LNS_set_basic_block:
3123 state_machine_regs.basic_block = 1;
3124 break;
3125
3126 case DW_LNS_const_add_pc:
3127 uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range);
3128 if (linfo.li_max_ops_per_insn == 1)
3129 {
3130 uladv *= linfo.li_min_insn_length;
3131 state_machine_regs.address += uladv;
3132 }
3133 else
3134 {
3135 state_machine_regs.address
3136 += ((state_machine_regs.op_index + uladv)
3137 / linfo.li_max_ops_per_insn)
3138 * linfo.li_min_insn_length;
3139 state_machine_regs.op_index
3140 = (state_machine_regs.op_index + uladv)
3141 % linfo.li_max_ops_per_insn;
3142 }
3143 break;
3144
3145 case DW_LNS_fixed_advance_pc:
3146 uladv = byte_get (data, 2);
3147 data += 2;
3148 state_machine_regs.address += uladv;
3149 state_machine_regs.op_index = 0;
3150 break;
3151
3152 case DW_LNS_set_prologue_end:
3153 break;
3154
3155 case DW_LNS_set_epilogue_begin:
3156 break;
3157
3158 case DW_LNS_set_isa:
3159 uladv = read_leb128 (data, & bytes_read, 0);
3160 data += bytes_read;
3161 printf (_(" Set ISA to %lu\n"), uladv);
3162 break;
3163
3164 default:
3165 printf (_(" Unknown opcode %d with operands: "), op_code);
3166
3167 for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
3168 {
3169 printf ("0x%s%s", dwarf_vmatoa ("x", read_leb128 (data,
3170 &bytes_read, 0)),
3171 i == 1 ? "" : ", ");
3172 data += bytes_read;
3173 }
3174 putchar ('\n');
3175 break;
3176 }
3177
3178 /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row
3179 to the DWARF address/line matrix. */
3180 if ((is_special_opcode) || (op_code == DW_LNE_end_sequence)
3181 || (op_code == DW_LNS_copy))
3182 {
3183 const unsigned int MAX_FILENAME_LENGTH = 35;
3184 char *fileName = (char *)file_table[state_machine_regs.file - 1].name;
3185 char *newFileName = NULL;
3186 size_t fileNameLength = strlen (fileName);
3187
3188 if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide))
3189 {
3190 newFileName = (char *) xmalloc (MAX_FILENAME_LENGTH + 1);
3191 /* Truncate file name */
3192 strncpy (newFileName,
3193 fileName + fileNameLength - MAX_FILENAME_LENGTH,
3194 MAX_FILENAME_LENGTH + 1);
3195 }
3196 else
3197 {
3198 newFileName = (char *) xmalloc (fileNameLength + 1);
3199 strncpy (newFileName, fileName, fileNameLength + 1);
3200 }
3201
3202 if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH))
3203 {
3204 if (linfo.li_max_ops_per_insn == 1)
3205 printf ("%-35s %11d %#18" DWARF_VMA_FMT "x\n",
3206 newFileName, state_machine_regs.line,
3207 state_machine_regs.address);
3208 else
3209 printf ("%-35s %11d %#18" DWARF_VMA_FMT "x[%d]\n",
3210 newFileName, state_machine_regs.line,
3211 state_machine_regs.address,
3212 state_machine_regs.op_index);
3213 }
3214 else
3215 {
3216 if (linfo.li_max_ops_per_insn == 1)
3217 printf ("%s %11d %#18" DWARF_VMA_FMT "x\n",
3218 newFileName, state_machine_regs.line,
3219 state_machine_regs.address);
3220 else
3221 printf ("%s %11d %#18" DWARF_VMA_FMT "x[%d]\n",
3222 newFileName, state_machine_regs.line,
3223 state_machine_regs.address,
3224 state_machine_regs.op_index);
3225 }
3226
3227 if (op_code == DW_LNE_end_sequence)
3228 printf ("\n");
3229
3230 free (newFileName);
3231 }
3232 }
3233 free (file_table);
3234 file_table = NULL;
3235 free (directory_table);
3236 directory_table = NULL;
3237 putchar ('\n');
3238 }
3239
3240 return 1;
3241 }
3242
3243 static int
3244 display_debug_lines (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED)
3245 {
3246 unsigned char *data = section->start;
3247 unsigned char *end = data + section->size;
3248 int retValRaw = 1;
3249 int retValDecoded = 1;
3250
3251 if (do_debug_lines == 0)
3252 do_debug_lines |= FLAG_DEBUG_LINES_RAW;
3253
3254 if (do_debug_lines & FLAG_DEBUG_LINES_RAW)
3255 retValRaw = display_debug_lines_raw (section, data, end);
3256
3257 if (do_debug_lines & FLAG_DEBUG_LINES_DECODED)
3258 retValDecoded = display_debug_lines_decoded (section, data, end);
3259
3260 if (!retValRaw || !retValDecoded)
3261 return 0;
3262
3263 return 1;
3264 }
3265
3266 static debug_info *
3267 find_debug_info_for_offset (unsigned long offset)
3268 {
3269 unsigned int i;
3270
3271 if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
3272 return NULL;
3273
3274 for (i = 0; i < num_debug_info_entries; i++)
3275 if (debug_information[i].cu_offset == offset)
3276 return debug_information + i;
3277
3278 return NULL;
3279 }
3280
3281 static int
3282 display_debug_pubnames (struct dwarf_section *section,
3283 void *file ATTRIBUTE_UNUSED)
3284 {
3285 DWARF2_Internal_PubNames names;
3286 unsigned char *start = section->start;
3287 unsigned char *end = start + section->size;
3288
3289 /* It does not matter if this load fails,
3290 we test for that later on. */
3291 load_debug_info (file);
3292
3293 printf (_("Contents of the %s section:\n\n"), section->name);
3294
3295 while (start < end)
3296 {
3297 unsigned char *data;
3298 unsigned long offset;
3299 int offset_size, initial_length_size;
3300
3301 data = start;
3302
3303 names.pn_length = byte_get (data, 4);
3304 data += 4;
3305 if (names.pn_length == 0xffffffff)
3306 {
3307 names.pn_length = byte_get (data, 8);
3308 data += 8;
3309 offset_size = 8;
3310 initial_length_size = 12;
3311 }
3312 else
3313 {
3314 offset_size = 4;
3315 initial_length_size = 4;
3316 }
3317
3318 names.pn_version = byte_get (data, 2);
3319 data += 2;
3320
3321 names.pn_offset = byte_get (data, offset_size);
3322 data += offset_size;
3323
3324 if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
3325 && num_debug_info_entries > 0
3326 && find_debug_info_for_offset (names.pn_offset) == NULL)
3327 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
3328 (unsigned long) names.pn_offset, section->name);
3329
3330 names.pn_size = byte_get (data, offset_size);
3331 data += offset_size;
3332
3333 start += names.pn_length + initial_length_size;
3334
3335 if (names.pn_version != 2 && names.pn_version != 3)
3336 {
3337 static int warned = 0;
3338
3339 if (! warned)
3340 {
3341 warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
3342 warned = 1;
3343 }
3344
3345 continue;
3346 }
3347
3348 printf (_(" Length: %ld\n"),
3349 (long) names.pn_length);
3350 printf (_(" Version: %d\n"),
3351 names.pn_version);
3352 printf (_(" Offset into .debug_info section: 0x%lx\n"),
3353 (unsigned long) names.pn_offset);
3354 printf (_(" Size of area in .debug_info section: %ld\n"),
3355 (long) names.pn_size);
3356
3357 printf (_("\n Offset\tName\n"));
3358
3359 do
3360 {
3361 offset = byte_get (data, offset_size);
3362
3363 if (offset != 0)
3364 {
3365 data += offset_size;
3366 printf (" %-6lx\t%s\n", offset, data);
3367 data += strlen ((char *) data) + 1;
3368 }
3369 }
3370 while (offset != 0);
3371 }
3372
3373 printf ("\n");
3374 return 1;
3375 }
3376
3377 static int
3378 display_debug_macinfo (struct dwarf_section *section,
3379 void *file ATTRIBUTE_UNUSED)
3380 {
3381 unsigned char *start = section->start;
3382 unsigned char *end = start + section->size;
3383 unsigned char *curr = start;
3384 unsigned int bytes_read;
3385 enum dwarf_macinfo_record_type op;
3386
3387 printf (_("Contents of the %s section:\n\n"), section->name);
3388
3389 while (curr < end)
3390 {
3391 unsigned int lineno;
3392 const char *string;
3393
3394 op = (enum dwarf_macinfo_record_type) *curr;
3395 curr++;
3396
3397 switch (op)
3398 {
3399 case DW_MACINFO_start_file:
3400 {
3401 unsigned int filenum;
3402
3403 lineno = read_leb128 (curr, & bytes_read, 0);
3404 curr += bytes_read;
3405 filenum = read_leb128 (curr, & bytes_read, 0);
3406 curr += bytes_read;
3407
3408 printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"),
3409 lineno, filenum);
3410 }
3411 break;
3412
3413 case DW_MACINFO_end_file:
3414 printf (_(" DW_MACINFO_end_file\n"));
3415 break;
3416
3417 case DW_MACINFO_define:
3418 lineno = read_leb128 (curr, & bytes_read, 0);
3419 curr += bytes_read;
3420 string = (char *) curr;
3421 curr += strlen (string) + 1;
3422 printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"),
3423 lineno, string);
3424 break;
3425
3426 case DW_MACINFO_undef:
3427 lineno = read_leb128 (curr, & bytes_read, 0);
3428 curr += bytes_read;
3429 string = (char *) curr;
3430 curr += strlen (string) + 1;
3431 printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"),
3432 lineno, string);
3433 break;
3434
3435 case DW_MACINFO_vendor_ext:
3436 {
3437 unsigned int constant;
3438
3439 constant = read_leb128 (curr, & bytes_read, 0);
3440 curr += bytes_read;
3441 string = (char *) curr;
3442 curr += strlen (string) + 1;
3443 printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"),
3444 constant, string);
3445 }
3446 break;
3447 }
3448 }
3449
3450 return 1;
3451 }
3452
3453 static int
3454 display_debug_abbrev (struct dwarf_section *section,
3455 void *file ATTRIBUTE_UNUSED)
3456 {
3457 abbrev_entry *entry;
3458 unsigned char *start = section->start;
3459 unsigned char *end = start + section->size;
3460
3461 printf (_("Contents of the %s section:\n\n"), section->name);
3462
3463 do
3464 {
3465 free_abbrevs ();
3466
3467 start = process_abbrev_section (start, end);
3468
3469 if (first_abbrev == NULL)
3470 continue;
3471
3472 printf (_(" Number TAG\n"));
3473
3474 for (entry = first_abbrev; entry; entry = entry->next)
3475 {
3476 abbrev_attr *attr;
3477
3478 printf (" %ld %s [%s]\n",
3479 entry->entry,
3480 get_TAG_name (entry->tag),
3481 entry->children ? _("has children") : _("no children"));
3482
3483 for (attr = entry->first_attr; attr; attr = attr->next)
3484 printf (" %-18s %s\n",
3485 get_AT_name (attr->attribute),
3486 get_FORM_name (attr->form));
3487 }
3488 }
3489 while (start);
3490
3491 printf ("\n");
3492
3493 return 1;
3494 }
3495
3496 /* Sort array of indexes in ascending order of loc_offsets[idx]. */
3497
3498 static dwarf_vma *loc_offsets;
3499
3500 static int
3501 loc_offsets_compar (const void *ap, const void *bp)
3502 {
3503 dwarf_vma a = loc_offsets[*(const unsigned int *) ap];
3504 dwarf_vma b = loc_offsets[*(const unsigned int *) bp];
3505
3506 return (a > b) - (b > a);
3507 }
3508
3509 static int
3510 display_debug_loc (struct dwarf_section *section, void *file)
3511 {
3512 unsigned char *start = section->start;
3513 unsigned char *section_end;
3514 unsigned long bytes;
3515 unsigned char *section_begin = start;
3516 unsigned int num_loc_list = 0;
3517 unsigned long last_offset = 0;
3518 unsigned int first = 0;
3519 unsigned int i;
3520 unsigned int j;
3521 unsigned int k;
3522 int seen_first_offset = 0;
3523 int locs_sorted = 1;
3524 unsigned char *next;
3525 unsigned int *array = NULL;
3526
3527 bytes = section->size;
3528 section_end = start + bytes;
3529
3530 if (bytes == 0)
3531 {
3532 printf (_("\nThe %s section is empty.\n"), section->name);
3533 return 0;
3534 }
3535
3536 if (load_debug_info (file) == 0)
3537 {
3538 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
3539 section->name);
3540 return 0;
3541 }
3542
3543 /* Check the order of location list in .debug_info section. If
3544 offsets of location lists are in the ascending order, we can
3545 use `debug_information' directly. */
3546 for (i = 0; i < num_debug_info_entries; i++)
3547 {
3548 unsigned int num;
3549
3550 num = debug_information [i].num_loc_offsets;
3551 if (num > num_loc_list)
3552 num_loc_list = num;
3553
3554 /* Check if we can use `debug_information' directly. */
3555 if (locs_sorted && num != 0)
3556 {
3557 if (!seen_first_offset)
3558 {
3559 /* This is the first location list. */
3560 last_offset = debug_information [i].loc_offsets [0];
3561 first = i;
3562 seen_first_offset = 1;
3563 j = 1;
3564 }
3565 else
3566 j = 0;
3567
3568 for (; j < num; j++)
3569 {
3570 if (last_offset >
3571 debug_information [i].loc_offsets [j])
3572 {
3573 locs_sorted = 0;
3574 break;
3575 }
3576 last_offset = debug_information [i].loc_offsets [j];
3577 }
3578 }
3579 }
3580
3581 if (!seen_first_offset)
3582 error (_("No location lists in .debug_info section!\n"));
3583
3584 /* DWARF sections under Mach-O have non-zero addresses. */
3585 if (debug_information [first].num_loc_offsets > 0
3586 && debug_information [first].loc_offsets [0] != section->address)
3587 warn (_("Location lists in %s section start at 0x%s\n"),
3588 section->name,
3589 dwarf_vmatoa ("x", debug_information [first].loc_offsets [0]));
3590
3591 if (!locs_sorted)
3592 array = (unsigned int *) xcmalloc (num_loc_list, sizeof (unsigned int));
3593 printf (_("Contents of the %s section:\n\n"), section->name);
3594 printf (_(" Offset Begin End Expression\n"));
3595
3596 seen_first_offset = 0;
3597 for (i = first; i < num_debug_info_entries; i++)
3598 {
3599 dwarf_vma begin;
3600 dwarf_vma end;
3601 unsigned short length;
3602 unsigned long offset;
3603 unsigned int pointer_size;
3604 unsigned int offset_size;
3605 int dwarf_version;
3606 unsigned long cu_offset;
3607 unsigned long base_address;
3608 int need_frame_base;
3609 int has_frame_base;
3610
3611 pointer_size = debug_information [i].pointer_size;
3612 cu_offset = debug_information [i].cu_offset;
3613 offset_size = debug_information [i].offset_size;
3614 dwarf_version = debug_information [i].dwarf_version;
3615 if (!locs_sorted)
3616 {
3617 for (k = 0; k < debug_information [i].num_loc_offsets; k++)
3618 array[k] = k;
3619 loc_offsets = debug_information [i].loc_offsets;
3620 qsort (array, debug_information [i].num_loc_offsets,
3621 sizeof (*array), loc_offsets_compar);
3622 }
3623
3624 for (k = 0; k < debug_information [i].num_loc_offsets; k++)
3625 {
3626 j = locs_sorted ? k : array[k];
3627 if (k
3628 && debug_information [i].loc_offsets [locs_sorted
3629 ? k - 1 : array [k - 1]]
3630 == debug_information [i].loc_offsets [j])
3631 continue;
3632 has_frame_base = debug_information [i].have_frame_base [j];
3633 /* DWARF sections under Mach-O have non-zero addresses. */
3634 offset = debug_information [i].loc_offsets [j] - section->address;
3635 next = section_begin + offset;
3636 base_address = debug_information [i].base_address;
3637
3638 if (!seen_first_offset)
3639 seen_first_offset = 1;
3640 else
3641 {
3642 if (start < next)
3643 warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
3644 (unsigned long) (start - section_begin),
3645 (unsigned long) (next - section_begin));
3646 else if (start > next)
3647 warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
3648 (unsigned long) (start - section_begin),
3649 (unsigned long) (next - section_begin));
3650 }
3651 start = next;
3652
3653 if (offset >= bytes)
3654 {
3655 warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"),
3656 offset);
3657 continue;
3658 }
3659
3660 while (1)
3661 {
3662 if (start + 2 * pointer_size > section_end)
3663 {
3664 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
3665 offset);
3666 break;
3667 }
3668
3669 /* Note: we use sign extension here in order to be sure that
3670 we can detect the -1 escape value. Sign extension into the
3671 top 32 bits of a 32-bit address will not affect the values
3672 that we display since we always show hex values, and always
3673 the bottom 32-bits. */
3674 begin = byte_get_signed (start, pointer_size);
3675 start += pointer_size;
3676 end = byte_get_signed (start, pointer_size);
3677 start += pointer_size;
3678
3679 printf (" %8.8lx ", offset);
3680
3681 if (begin == 0 && end == 0)
3682 {
3683 printf (_("<End of list>\n"));
3684 break;
3685 }
3686
3687 /* Check base address specifiers. */
3688 if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1)
3689 {
3690 base_address = end;
3691 print_dwarf_vma (begin, pointer_size);
3692 print_dwarf_vma (end, pointer_size);
3693 printf (_("(base address)\n"));
3694 continue;
3695 }
3696
3697 if (start + 2 > section_end)
3698 {
3699 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
3700 offset);
3701 break;
3702 }
3703
3704 length = byte_get (start, 2);
3705 start += 2;
3706
3707 if (start + length > section_end)
3708 {
3709 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
3710 offset);
3711 break;
3712 }
3713
3714 print_dwarf_vma (begin + base_address, pointer_size);
3715 print_dwarf_vma (end + base_address, pointer_size);
3716
3717 putchar ('(');
3718 need_frame_base = decode_location_expression (start,
3719 pointer_size,
3720 offset_size,
3721 dwarf_version,
3722 length,
3723 cu_offset, section);
3724 putchar (')');
3725
3726 if (need_frame_base && !has_frame_base)
3727 printf (_(" [without DW_AT_frame_base]"));
3728
3729 if (begin == end)
3730 fputs (_(" (start == end)"), stdout);
3731 else if (begin > end)
3732 fputs (_(" (start > end)"), stdout);
3733
3734 putchar ('\n');
3735
3736 start += length;
3737 }
3738 }
3739 }
3740
3741 if (start < section_end)
3742 warn (_("There are %ld unused bytes at the end of section %s\n"),
3743 (long) (section_end - start), section->name);
3744 putchar ('\n');
3745 free (array);
3746 return 1;
3747 }
3748
3749 static int
3750 display_debug_str (struct dwarf_section *section,
3751 void *file ATTRIBUTE_UNUSED)
3752 {
3753 unsigned char *start = section->start;
3754 unsigned long bytes = section->size;
3755 dwarf_vma addr = section->address;
3756
3757 if (bytes == 0)
3758 {
3759 printf (_("\nThe %s section is empty.\n"), section->name);
3760 return 0;
3761 }
3762
3763 printf (_("Contents of the %s section:\n\n"), section->name);
3764
3765 while (bytes)
3766 {
3767 int j;
3768 int k;
3769 int lbytes;
3770
3771 lbytes = (bytes > 16 ? 16 : bytes);
3772
3773 printf (" 0x%8.8lx ", (unsigned long) addr);
3774
3775 for (j = 0; j < 16; j++)
3776 {
3777 if (j < lbytes)
3778 printf ("%2.2x", start[j]);
3779 else
3780 printf (" ");
3781
3782 if ((j & 3) == 3)
3783 printf (" ");
3784 }
3785
3786 for (j = 0; j < lbytes; j++)
3787 {
3788 k = start[j];
3789 if (k >= ' ' && k < 0x80)
3790 printf ("%c", k);
3791 else
3792 printf (".");
3793 }
3794
3795 putchar ('\n');
3796
3797 start += lbytes;
3798 addr += lbytes;
3799 bytes -= lbytes;
3800 }
3801
3802 putchar ('\n');
3803
3804 return 1;
3805 }
3806
3807 static int
3808 display_debug_info (struct dwarf_section *section, void *file)
3809 {
3810 return process_debug_info (section, file, abbrev, 0, 0);
3811 }
3812
3813 static int
3814 display_debug_types (struct dwarf_section *section, void *file)
3815 {
3816 return process_debug_info (section, file, abbrev, 0, 1);
3817 }
3818
3819 static int
3820 display_trace_info (struct dwarf_section *section, void *file)
3821 {
3822 return process_debug_info (section, file, trace_abbrev, 0, 0);
3823 }
3824
3825 static int
3826 display_debug_aranges (struct dwarf_section *section,
3827 void *file ATTRIBUTE_UNUSED)
3828 {
3829 unsigned char *start = section->start;
3830 unsigned char *end = start + section->size;
3831
3832 printf (_("Contents of the %s section:\n\n"), section->name);
3833
3834 /* It does not matter if this load fails,
3835 we test for that later on. */
3836 load_debug_info (file);
3837
3838 while (start < end)
3839 {
3840 unsigned char *hdrptr;
3841 DWARF2_Internal_ARange arange;
3842 unsigned char *addr_ranges;
3843 dwarf_vma length;
3844 dwarf_vma address;
3845 unsigned char address_size;
3846 int excess;
3847 int offset_size;
3848 int initial_length_size;
3849
3850 hdrptr = start;
3851
3852 arange.ar_length = byte_get (hdrptr, 4);
3853 hdrptr += 4;
3854
3855 if (arange.ar_length == 0xffffffff)
3856 {
3857 arange.ar_length = byte_get (hdrptr, 8);
3858 hdrptr += 8;
3859 offset_size = 8;
3860 initial_length_size = 12;
3861 }
3862 else
3863 {
3864 offset_size = 4;
3865 initial_length_size = 4;
3866 }
3867
3868 arange.ar_version = byte_get (hdrptr, 2);
3869 hdrptr += 2;
3870
3871 arange.ar_info_offset = byte_get (hdrptr, offset_size);
3872 hdrptr += offset_size;
3873
3874 if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
3875 && num_debug_info_entries > 0
3876 && find_debug_info_for_offset (arange.ar_info_offset) == NULL)
3877 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
3878 (unsigned long) arange.ar_info_offset, section->name);
3879
3880 arange.ar_pointer_size = byte_get (hdrptr, 1);
3881 hdrptr += 1;
3882
3883 arange.ar_segment_size = byte_get (hdrptr, 1);
3884 hdrptr += 1;
3885
3886 if (arange.ar_version != 2 && arange.ar_version != 3)
3887 {
3888 warn (_("Only DWARF 2 and 3 aranges are currently supported.\n"));
3889 break;
3890 }
3891
3892 printf (_(" Length: %ld\n"),
3893 (long) arange.ar_length);
3894 printf (_(" Version: %d\n"), arange.ar_version);
3895 printf (_(" Offset into .debug_info: 0x%lx\n"),
3896 (unsigned long) arange.ar_info_offset);
3897 printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size);
3898 printf (_(" Segment Size: %d\n"), arange.ar_segment_size);
3899
3900 address_size = arange.ar_pointer_size + arange.ar_segment_size;
3901
3902 /* The DWARF spec does not require that the address size be a power
3903 of two, but we do. This will have to change if we ever encounter
3904 an uneven architecture. */
3905 if ((address_size & (address_size - 1)) != 0)
3906 {
3907 warn (_("Pointer size + Segment size is not a power of two.\n"));
3908 break;
3909 }
3910
3911 if (address_size > 4)
3912 printf (_("\n Address Length\n"));
3913 else
3914 printf (_("\n Address Length\n"));
3915
3916 addr_ranges = hdrptr;
3917
3918 /* Must pad to an alignment boundary that is twice the address size. */
3919 excess = (hdrptr - start) % (2 * address_size);
3920 if (excess)
3921 addr_ranges += (2 * address_size) - excess;
3922
3923 start += arange.ar_length + initial_length_size;
3924
3925 while (addr_ranges + 2 * address_size <= start)
3926 {
3927 address = byte_get (addr_ranges, address_size);
3928
3929 addr_ranges += address_size;
3930
3931 length = byte_get (addr_ranges, address_size);
3932
3933 addr_ranges += address_size;
3934
3935 printf (" ");
3936 print_dwarf_vma (address, address_size);
3937 print_dwarf_vma (length, address_size);
3938 putchar ('\n');
3939 }
3940 }
3941
3942 printf ("\n");
3943
3944 return 1;
3945 }
3946
3947 /* Each debug_information[x].range_lists[y] gets this representation for
3948 sorting purposes. */
3949
3950 struct range_entry
3951 {
3952 /* The debug_information[x].range_lists[y] value. */
3953 unsigned long ranges_offset;
3954
3955 /* Original debug_information to find parameters of the data. */
3956 debug_info *debug_info_p;
3957 };
3958
3959 /* Sort struct range_entry in ascending order of its RANGES_OFFSET. */
3960
3961 static int
3962 range_entry_compar (const void *ap, const void *bp)
3963 {
3964 const struct range_entry *a_re = (const struct range_entry *) ap;
3965 const struct range_entry *b_re = (const struct range_entry *) bp;
3966 const unsigned long a = a_re->ranges_offset;
3967 const unsigned long b = b_re->ranges_offset;
3968
3969 return (a > b) - (b > a);
3970 }
3971
3972 static int
3973 display_debug_ranges (struct dwarf_section *section,
3974 void *file ATTRIBUTE_UNUSED)
3975 {
3976 unsigned char *start = section->start;
3977 unsigned long bytes;
3978 unsigned char *section_begin = start;
3979 unsigned int num_range_list, i;
3980 struct range_entry *range_entries, *range_entry_fill;
3981
3982 bytes = section->size;
3983
3984 if (bytes == 0)
3985 {
3986 printf (_("\nThe %s section is empty.\n"), section->name);
3987 return 0;
3988 }
3989
3990 if (load_debug_info (file) == 0)
3991 {
3992 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
3993 section->name);
3994 return 0;
3995 }
3996
3997 num_range_list = 0;
3998 for (i = 0; i < num_debug_info_entries; i++)
3999 num_range_list += debug_information [i].num_range_lists;
4000
4001 if (num_range_list == 0)
4002 error (_("No range lists in .debug_info section!\n"));
4003
4004 range_entries = (struct range_entry *)
4005 xmalloc (sizeof (*range_entries) * num_range_list);
4006 range_entry_fill = range_entries;
4007
4008 for (i = 0; i < num_debug_info_entries; i++)
4009 {
4010 debug_info *debug_info_p = &debug_information[i];
4011 unsigned int j;
4012
4013 for (j = 0; j < debug_info_p->num_range_lists; j++)
4014 {
4015 range_entry_fill->ranges_offset = debug_info_p->range_lists[j];
4016 range_entry_fill->debug_info_p = debug_info_p;
4017 range_entry_fill++;
4018 }
4019 }
4020
4021 qsort (range_entries, num_range_list, sizeof (*range_entries),
4022 range_entry_compar);
4023
4024 /* DWARF sections under Mach-O have non-zero addresses. */
4025 if (range_entries[0].ranges_offset != section->address)
4026 warn (_("Range lists in %s section start at 0x%lx\n"),
4027 section->name, range_entries[0].ranges_offset);
4028
4029 printf (_("Contents of the %s section:\n\n"), section->name);
4030 printf (_(" Offset Begin End\n"));
4031
4032 for (i = 0; i < num_range_list; i++)
4033 {
4034 struct range_entry *range_entry = &range_entries[i];
4035 debug_info *debug_info_p = range_entry->debug_info_p;
4036 unsigned int pointer_size;
4037 unsigned long offset;
4038 unsigned char *next;
4039 unsigned long base_address;
4040
4041 pointer_size = debug_info_p->pointer_size;
4042
4043 /* DWARF sections under Mach-O have non-zero addresses. */
4044 offset = range_entry->ranges_offset - section->address;
4045 next = section_begin + offset;
4046 base_address = debug_info_p->base_address;
4047
4048 if (i > 0)
4049 {
4050 if (start < next)
4051 warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
4052 (unsigned long) (start - section_begin),
4053 (unsigned long) (next - section_begin), section->name);
4054 else if (start > next)
4055 warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
4056 (unsigned long) (start - section_begin),
4057 (unsigned long) (next - section_begin), section->name);
4058 }
4059 start = next;
4060
4061 while (1)
4062 {
4063 dwarf_vma begin;
4064 dwarf_vma end;
4065
4066 /* Note: we use sign extension here in order to be sure that
4067 we can detect the -1 escape value. Sign extension into the
4068 top 32 bits of a 32-bit address will not affect the values
4069 that we display since we always show hex values, and always
4070 the bottom 32-bits. */
4071 begin = byte_get_signed (start, pointer_size);
4072 start += pointer_size;
4073 end = byte_get_signed (start, pointer_size);
4074 start += pointer_size;
4075
4076 printf (" %8.8lx ", offset);
4077
4078 if (begin == 0 && end == 0)
4079 {
4080 printf (_("<End of list>\n"));
4081 break;
4082 }
4083
4084 /* Check base address specifiers. */
4085 if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1)
4086 {
4087 base_address = end;
4088 print_dwarf_vma (begin, pointer_size);
4089 print_dwarf_vma (end, pointer_size);
4090 printf ("(base address)\n");
4091 continue;
4092 }
4093
4094 print_dwarf_vma (begin + base_address, pointer_size);
4095 print_dwarf_vma (end + base_address, pointer_size);
4096
4097 if (begin == end)
4098 fputs (_("(start == end)"), stdout);
4099 else if (begin > end)
4100 fputs (_("(start > end)"), stdout);
4101
4102 putchar ('\n');
4103 }
4104 }
4105 putchar ('\n');
4106
4107 free (range_entries);
4108
4109 return 1;
4110 }
4111
4112 typedef struct Frame_Chunk
4113 {
4114 struct Frame_Chunk *next;
4115 unsigned char *chunk_start;
4116 int ncols;
4117 /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */
4118 short int *col_type;
4119 int *col_offset;
4120 char *augmentation;
4121 unsigned int code_factor;
4122 int data_factor;
4123 unsigned long pc_begin;
4124 unsigned long pc_range;
4125 int cfa_reg;
4126 int cfa_offset;
4127 int ra;
4128 unsigned char fde_encoding;
4129 unsigned char cfa_exp;
4130 unsigned char ptr_size;
4131 unsigned char segment_size;
4132 }
4133 Frame_Chunk;
4134
4135 static const char *const *dwarf_regnames;
4136 static unsigned int dwarf_regnames_count;
4137
4138 /* A marker for a col_type that means this column was never referenced
4139 in the frame info. */
4140 #define DW_CFA_unreferenced (-1)
4141
4142 /* Return 0 if not more space is needed, 1 if more space is needed,
4143 -1 for invalid reg. */
4144
4145 static int
4146 frame_need_space (Frame_Chunk *fc, unsigned int reg)
4147 {
4148 int prev = fc->ncols;
4149
4150 if (reg < (unsigned int) fc->ncols)
4151 return 0;
4152
4153 if (dwarf_regnames_count
4154 && reg > dwarf_regnames_count)
4155 return -1;
4156
4157 fc->ncols = reg + 1;
4158 fc->col_type = (short int *) xcrealloc (fc->col_type, fc->ncols,
4159 sizeof (short int));
4160 fc->col_offset = (int *) xcrealloc (fc->col_offset, fc->ncols, sizeof (int));
4161
4162 while (prev < fc->ncols)
4163 {
4164 fc->col_type[prev] = DW_CFA_unreferenced;
4165 fc->col_offset[prev] = 0;
4166 prev++;
4167 }
4168 return 1;
4169 }
4170
4171 static const char *const dwarf_regnames_i386[] =
4172 {
4173 "eax", "ecx", "edx", "ebx",
4174 "esp", "ebp", "esi", "edi",
4175 "eip", "eflags", NULL,
4176 "st0", "st1", "st2", "st3",
4177 "st4", "st5", "st6", "st7",
4178 NULL, NULL,
4179 "xmm0", "xmm1", "xmm2", "xmm3",
4180 "xmm4", "xmm5", "xmm6", "xmm7",
4181 "mm0", "mm1", "mm2", "mm3",
4182 "mm4", "mm5", "mm6", "mm7",
4183 "fcw", "fsw", "mxcsr",
4184 "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL,
4185 "tr", "ldtr"
4186 };
4187
4188 void
4189 init_dwarf_regnames_i386 (void)
4190 {
4191 dwarf_regnames = dwarf_regnames_i386;
4192 dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386);
4193 }
4194
4195 static const char *const dwarf_regnames_x86_64[] =
4196 {
4197 "rax", "rdx", "rcx", "rbx",
4198 "rsi", "rdi", "rbp", "rsp",
4199 "r8", "r9", "r10", "r11",
4200 "r12", "r13", "r14", "r15",
4201 "rip",
4202 "xmm0", "xmm1", "xmm2", "xmm3",
4203 "xmm4", "xmm5", "xmm6", "xmm7",
4204 "xmm8", "xmm9", "xmm10", "xmm11",
4205 "xmm12", "xmm13", "xmm14", "xmm15",
4206 "st0", "st1", "st2", "st3",
4207 "st4", "st5", "st6", "st7",
4208 "mm0", "mm1", "mm2", "mm3",
4209 "mm4", "mm5", "mm6", "mm7",
4210 "rflags",
4211 "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL,
4212 "fs.base", "gs.base", NULL, NULL,
4213 "tr", "ldtr",
4214 "mxcsr", "fcw", "fsw"
4215 };
4216
4217 void
4218 init_dwarf_regnames_x86_64 (void)
4219 {
4220 dwarf_regnames = dwarf_regnames_x86_64;
4221 dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64);
4222 }
4223
4224 void
4225 init_dwarf_regnames (unsigned int e_machine)
4226 {
4227 switch (e_machine)
4228 {
4229 case EM_386:
4230 case EM_486:
4231 init_dwarf_regnames_i386 ();
4232 break;
4233
4234 case EM_X86_64:
4235 case EM_L1OM:
4236 init_dwarf_regnames_x86_64 ();
4237 break;
4238
4239 default:
4240 break;
4241 }
4242 }
4243
4244 static const char *
4245 regname (unsigned int regno, int row)
4246 {
4247 static char reg[64];
4248 if (dwarf_regnames
4249 && regno < dwarf_regnames_count
4250 && dwarf_regnames [regno] != NULL)
4251 {
4252 if (row)
4253 return dwarf_regnames [regno];
4254 snprintf (reg, sizeof (reg), "r%d (%s)", regno,
4255 dwarf_regnames [regno]);
4256 }
4257 else
4258 snprintf (reg, sizeof (reg), "r%d", regno);
4259 return reg;
4260 }
4261
4262 static void
4263 frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs)
4264 {
4265 int r;
4266 char tmp[100];
4267
4268 if (*max_regs < fc->ncols)
4269 *max_regs = fc->ncols;
4270
4271 if (*need_col_headers)
4272 {
4273 static const char *sloc = " LOC";
4274
4275 *need_col_headers = 0;
4276
4277 printf ("%-*s CFA ", eh_addr_size * 2, sloc);
4278
4279 for (r = 0; r < *max_regs; r++)
4280 if (fc->col_type[r] != DW_CFA_unreferenced)
4281 {
4282 if (r == fc->ra)
4283 printf ("ra ");
4284 else
4285 printf ("%-5s ", regname (r, 1));
4286 }
4287
4288 printf ("\n");
4289 }
4290
4291 printf ("%0*lx ", eh_addr_size * 2, fc->pc_begin);
4292 if (fc->cfa_exp)
4293 strcpy (tmp, "exp");
4294 else
4295 sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), fc->cfa_offset);
4296 printf ("%-8s ", tmp);
4297
4298 for (r = 0; r < fc->ncols; r++)
4299 {
4300 if (fc->col_type[r] != DW_CFA_unreferenced)
4301 {
4302 switch (fc->col_type[r])
4303 {
4304 case DW_CFA_undefined:
4305 strcpy (tmp, "u");
4306 break;
4307 case DW_CFA_same_value:
4308 strcpy (tmp, "s");
4309 break;
4310 case DW_CFA_offset:
4311 sprintf (tmp, "c%+d", fc->col_offset[r]);
4312 break;
4313 case DW_CFA_val_offset:
4314 sprintf (tmp, "v%+d", fc->col_offset[r]);
4315 break;
4316 case DW_CFA_register:
4317 sprintf (tmp, "%s", regname (fc->col_offset[r], 0));
4318 break;
4319 case DW_CFA_expression:
4320 strcpy (tmp, "exp");
4321 break;
4322 case DW_CFA_val_expression:
4323 strcpy (tmp, "vexp");
4324 break;
4325 default:
4326 strcpy (tmp, "n/a");
4327 break;
4328 }
4329 printf ("%-5s ", tmp);
4330 }
4331 }
4332 printf ("\n");
4333 }
4334
4335 #define GET(N) byte_get (start, N); start += N
4336 #define LEB() read_leb128 (start, & length_return, 0); start += length_return
4337 #define SLEB() read_sleb128 (start, & length_return); start += length_return
4338
4339 static int
4340 display_debug_frames (struct dwarf_section *section,
4341 void *file ATTRIBUTE_UNUSED)
4342 {
4343 unsigned char *start = section->start;
4344 unsigned char *end = start + section->size;
4345 unsigned char *section_start = start;
4346 Frame_Chunk *chunks = 0;
4347 Frame_Chunk *remembered_state = 0;
4348 Frame_Chunk *rs;
4349 int is_eh = strcmp (section->name, ".eh_frame") == 0;
4350 unsigned int length_return;
4351 int max_regs = 0;
4352 const char *bad_reg = _("bad register: ");
4353 int saved_eh_addr_size = eh_addr_size;
4354
4355 printf (_("Contents of the %s section:\n"), section->name);
4356
4357 while (start < end)
4358 {
4359 unsigned char *saved_start;
4360 unsigned char *block_end;
4361 unsigned long length;
4362 unsigned long cie_id;
4363 Frame_Chunk *fc;
4364 Frame_Chunk *cie;
4365 int need_col_headers = 1;
4366 unsigned char *augmentation_data = NULL;
4367 unsigned long augmentation_data_len = 0;
4368 int encoded_ptr_size = saved_eh_addr_size;
4369 int offset_size;
4370 int initial_length_size;
4371
4372 saved_start = start;
4373 length = byte_get (start, 4); start += 4;
4374
4375 if (length == 0)
4376 {
4377 printf ("\n%08lx ZERO terminator\n\n",
4378 (unsigned long)(saved_start - section_start));
4379 continue;
4380 }
4381
4382 if (length == 0xffffffff)
4383 {
4384 length = byte_get (start, 8);
4385 start += 8;
4386 offset_size = 8;
4387 initial_length_size = 12;
4388 }
4389 else
4390 {
4391 offset_size = 4;
4392 initial_length_size = 4;
4393 }
4394
4395 block_end = saved_start + length + initial_length_size;
4396 if (block_end > end)
4397 {
4398 warn ("Invalid length %#08lx in FDE at %#08lx\n",
4399 length, (unsigned long)(saved_start - section_start));
4400 block_end = end;
4401 }
4402 cie_id = byte_get (start, offset_size); start += offset_size;
4403
4404 if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID))
4405 {
4406 int version;
4407
4408 fc = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk));
4409 memset (fc, 0, sizeof (Frame_Chunk));
4410
4411 fc->next = chunks;
4412 chunks = fc;
4413 fc->chunk_start = saved_start;
4414 fc->ncols = 0;
4415 fc->col_type = (short int *) xmalloc (sizeof (short int));
4416 fc->col_offset = (int *) xmalloc (sizeof (int));
4417 frame_need_space (fc, max_regs - 1);
4418
4419 version = *start++;
4420
4421 fc->augmentation = (char *) start;
4422 start = (unsigned char *) strchr ((char *) start, '\0') + 1;
4423
4424 if (strcmp (fc->augmentation, "eh") == 0)
4425 start += eh_addr_size;
4426
4427 if (version >= 4)
4428 {
4429 fc->ptr_size = GET (1);
4430 fc->segment_size = GET (1);
4431 eh_addr_size = fc->ptr_size;
4432 }
4433 else
4434 {
4435 fc->ptr_size = eh_addr_size;
4436 fc->segment_size = 0;
4437 }
4438 fc->code_factor = LEB ();
4439 fc->data_factor = SLEB ();
4440 if (version == 1)
4441 {
4442 fc->ra = GET (1);
4443 }
4444 else
4445 {
4446 fc->ra = LEB ();
4447 }
4448
4449 if (fc->augmentation[0] == 'z')
4450 {
4451 augmentation_data_len = LEB ();
4452 augmentation_data = start;
4453 start += augmentation_data_len;
4454 }
4455 cie = fc;
4456
4457 if (do_debug_frames_interp)
4458 printf ("\n%08lx %08lx %08lx CIE \"%s\" cf=%d df=%d ra=%d\n",
4459 (unsigned long)(saved_start - section_start), length, cie_id,
4460 fc->augmentation, fc->code_factor, fc->data_factor,
4461 fc->ra);
4462 else
4463 {
4464 printf ("\n%08lx %08lx %08lx CIE\n",
4465 (unsigned long)(saved_start - section_start), length, cie_id);
4466 printf (" Version: %d\n", version);
4467 printf (" Augmentation: \"%s\"\n", fc->augmentation);
4468 if (version >= 4)
4469 {
4470 printf (" Pointer Size: %u\n", fc->ptr_size);
4471 printf (" Segment Size: %u\n", fc->segment_size);
4472 }
4473 printf (" Code alignment factor: %u\n", fc->code_factor);
4474 printf (" Data alignment factor: %d\n", fc->data_factor);
4475 printf (" Return address column: %d\n", fc->ra);
4476
4477 if (augmentation_data_len)
4478 {
4479 unsigned long i;
4480 printf (" Augmentation data: ");
4481 for (i = 0; i < augmentation_data_len; ++i)
4482 printf (" %02x", augmentation_data[i]);
4483 putchar ('\n');
4484 }
4485 putchar ('\n');
4486 }
4487
4488 if (augmentation_data_len)
4489 {
4490 unsigned char *p, *q;
4491 p = (unsigned char *) fc->augmentation + 1;
4492 q = augmentation_data;
4493
4494 while (1)
4495 {
4496 if (*p == 'L')
4497 q++;
4498 else if (*p == 'P')
4499 q += 1 + size_of_encoded_value (*q);
4500 else if (*p == 'R')
4501 fc->fde_encoding = *q++;
4502 else if (*p == 'S')
4503 ;
4504 else
4505 break;
4506 p++;
4507 }
4508
4509 if (fc->fde_encoding)
4510 encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
4511 }
4512
4513 frame_need_space (fc, fc->ra);
4514 }
4515 else
4516 {
4517 unsigned char *look_for;
4518 static Frame_Chunk fde_fc;
4519 unsigned long segment_selector;
4520
4521 fc = & fde_fc;
4522 memset (fc, 0, sizeof (Frame_Chunk));
4523
4524 look_for = is_eh ? start - 4 - cie_id : section_start + cie_id;
4525
4526 for (cie = chunks; cie ; cie = cie->next)
4527 if (cie->chunk_start == look_for)
4528 break;
4529
4530 if (!cie)
4531 {
4532 warn ("Invalid CIE pointer %#08lx in FDE at %#08lx\n",
4533 cie_id, (unsigned long)(saved_start - section_start));
4534 fc->ncols = 0;
4535 fc->col_type = (short int *) xmalloc (sizeof (short int));
4536 fc->col_offset = (int *) xmalloc (sizeof (int));
4537 frame_need_space (fc, max_regs - 1);
4538 cie = fc;
4539 fc->augmentation = "";
4540 fc->fde_encoding = 0;
4541 fc->ptr_size = eh_addr_size;
4542 fc->segment_size = 0;
4543 }
4544 else
4545 {
4546 fc->ncols = cie->ncols;
4547 fc->col_type = (short int *) xcmalloc (fc->ncols, sizeof (short int));
4548 fc->col_offset = (int *) xcmalloc (fc->ncols, sizeof (int));
4549 memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int));
4550 memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int));
4551 fc->augmentation = cie->augmentation;
4552 fc->ptr_size = cie->ptr_size;
4553 eh_addr_size = cie->ptr_size;
4554 fc->segment_size = cie->segment_size;
4555 fc->code_factor = cie->code_factor;
4556 fc->data_factor = cie->data_factor;
4557 fc->cfa_reg = cie->cfa_reg;
4558 fc->cfa_offset = cie->cfa_offset;
4559 fc->ra = cie->ra;
4560 frame_need_space (fc, max_regs - 1);
4561 fc->fde_encoding = cie->fde_encoding;
4562 }
4563
4564 if (fc->fde_encoding)
4565 encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
4566
4567 segment_selector = 0;
4568 if (fc->segment_size)
4569 {
4570 segment_selector = byte_get (start, fc->segment_size);
4571 start += fc->segment_size;
4572 }
4573 fc->pc_begin = get_encoded_value (start, fc->fde_encoding, section);
4574 start += encoded_ptr_size;
4575 fc->pc_range = byte_get (start, encoded_ptr_size);
4576 start += encoded_ptr_size;
4577
4578 if (cie->augmentation[0] == 'z')
4579 {
4580 augmentation_data_len = LEB ();
4581 augmentation_data = start;
4582 start += augmentation_data_len;
4583 }
4584
4585 printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=",
4586 (unsigned long)(saved_start - section_start), length, cie_id,
4587 (unsigned long)(cie->chunk_start - section_start));
4588 if (fc->segment_size)
4589 printf ("%04lx:", segment_selector);
4590 printf ("%08lx..%08lx\n", fc->pc_begin, fc->pc_begin + fc->pc_range);
4591 if (! do_debug_frames_interp && augmentation_data_len)
4592 {
4593 unsigned long i;
4594
4595 printf (" Augmentation data: ");
4596 for (i = 0; i < augmentation_data_len; ++i)
4597 printf (" %02x", augmentation_data[i]);
4598 putchar ('\n');
4599 putchar ('\n');
4600 }
4601 }
4602
4603 /* At this point, fc is the current chunk, cie (if any) is set, and
4604 we're about to interpret instructions for the chunk. */
4605 /* ??? At present we need to do this always, since this sizes the
4606 fc->col_type and fc->col_offset arrays, which we write into always.
4607 We should probably split the interpreted and non-interpreted bits
4608 into two different routines, since there's so much that doesn't
4609 really overlap between them. */
4610 if (1 || do_debug_frames_interp)
4611 {
4612 /* Start by making a pass over the chunk, allocating storage
4613 and taking note of what registers are used. */
4614 unsigned char *tmp = start;
4615
4616 while (start < block_end)
4617 {
4618 unsigned op, opa;
4619 unsigned long reg, temp;
4620
4621 op = *start++;
4622 opa = op & 0x3f;
4623 if (op & 0xc0)
4624 op &= 0xc0;
4625
4626 /* Warning: if you add any more cases to this switch, be
4627 sure to add them to the corresponding switch below. */
4628 switch (op)
4629 {
4630 case DW_CFA_advance_loc:
4631 break;
4632 case DW_CFA_offset:
4633 LEB ();
4634 if (frame_need_space (fc, opa) >= 0)
4635 fc->col_type[opa] = DW_CFA_undefined;
4636 break;
4637 case DW_CFA_restore:
4638 if (frame_need_space (fc, opa) >= 0)
4639 fc->col_type[opa] = DW_CFA_undefined;
4640 break;
4641 case DW_CFA_set_loc:
4642 start += encoded_ptr_size;
4643 break;
4644 case DW_CFA_advance_loc1:
4645 start += 1;
4646 break;
4647 case DW_CFA_advance_loc2:
4648 start += 2;
4649 break;
4650 case DW_CFA_advance_loc4:
4651 start += 4;
4652 break;
4653 case DW_CFA_offset_extended:
4654 case DW_CFA_val_offset:
4655 reg = LEB (); LEB ();
4656 if (frame_need_space (fc, reg) >= 0)
4657 fc->col_type[reg] = DW_CFA_undefined;
4658 break;
4659 case DW_CFA_restore_extended:
4660 reg = LEB ();
4661 frame_need_space (fc, reg);
4662 if (frame_need_space (fc, reg) >= 0)
4663 fc->col_type[reg] = DW_CFA_undefined;
4664 break;
4665 case DW_CFA_undefined:
4666 reg = LEB ();
4667 if (frame_need_space (fc, reg) >= 0)
4668 fc->col_type[reg] = DW_CFA_undefined;
4669 break;
4670 case DW_CFA_same_value:
4671 reg = LEB ();
4672 if (frame_need_space (fc, reg) >= 0)
4673 fc->col_type[reg] = DW_CFA_undefined;
4674 break;
4675 case DW_CFA_register:
4676 reg = LEB (); LEB ();
4677 if (frame_need_space (fc, reg) >= 0)
4678 fc->col_type[reg] = DW_CFA_undefined;
4679 break;
4680 case DW_CFA_def_cfa:
4681 LEB (); LEB ();
4682 break;
4683 case DW_CFA_def_cfa_register:
4684 LEB ();
4685 break;
4686 case DW_CFA_def_cfa_offset:
4687 LEB ();
4688 break;
4689 case DW_CFA_def_cfa_expression:
4690 temp = LEB ();
4691 start += temp;
4692 break;
4693 case DW_CFA_expression:
4694 case DW_CFA_val_expression:
4695 reg = LEB ();
4696 temp = LEB ();
4697 start += temp;
4698 if (frame_need_space (fc, reg) >= 0)
4699 fc->col_type[reg] = DW_CFA_undefined;
4700 break;
4701 case DW_CFA_offset_extended_sf:
4702 case DW_CFA_val_offset_sf:
4703 reg = LEB (); SLEB ();
4704 if (frame_need_space (fc, reg) >= 0)
4705 fc->col_type[reg] = DW_CFA_undefined;
4706 break;
4707 case DW_CFA_def_cfa_sf:
4708 LEB (); SLEB ();
4709 break;
4710 case DW_CFA_def_cfa_offset_sf:
4711 SLEB ();
4712 break;
4713 case DW_CFA_MIPS_advance_loc8:
4714 start += 8;
4715 break;
4716 case DW_CFA_GNU_args_size:
4717 LEB ();
4718 break;
4719 case DW_CFA_GNU_negative_offset_extended:
4720 reg = LEB (); LEB ();
4721 if (frame_need_space (fc, reg) >= 0)
4722 fc->col_type[reg] = DW_CFA_undefined;
4723 break;
4724 default:
4725 break;
4726 }
4727 }
4728 start = tmp;
4729 }
4730
4731 /* Now we know what registers are used, make a second pass over
4732 the chunk, this time actually printing out the info. */
4733
4734 while (start < block_end)
4735 {
4736 unsigned op, opa;
4737 unsigned long ul, reg, roffs;
4738 long l, ofs;
4739 dwarf_vma vma;
4740 const char *reg_prefix = "";
4741
4742 op = *start++;
4743 opa = op & 0x3f;
4744 if (op & 0xc0)
4745 op &= 0xc0;
4746
4747 /* Warning: if you add any more cases to this switch, be
4748 sure to add them to the corresponding switch above. */
4749 switch (op)
4750 {
4751 case DW_CFA_advance_loc:
4752 if (do_debug_frames_interp)
4753 frame_display_row (fc, &need_col_headers, &max_regs);
4754 else
4755 printf (" DW_CFA_advance_loc: %d to %08lx\n",
4756 opa * fc->code_factor,
4757 fc->pc_begin + opa * fc->code_factor);
4758 fc->pc_begin += opa * fc->code_factor;
4759 break;
4760
4761 case DW_CFA_offset:
4762 roffs = LEB ();
4763 if (opa >= (unsigned int) fc->ncols)
4764 reg_prefix = bad_reg;
4765 if (! do_debug_frames_interp || *reg_prefix != '\0')
4766 printf (" DW_CFA_offset: %s%s at cfa%+ld\n",
4767 reg_prefix, regname (opa, 0),
4768 roffs * fc->data_factor);
4769 if (*reg_prefix == '\0')
4770 {
4771 fc->col_type[opa] = DW_CFA_offset;
4772 fc->col_offset[opa] = roffs * fc->data_factor;
4773 }
4774 break;
4775
4776 case DW_CFA_restore:
4777 if (opa >= (unsigned int) cie->ncols
4778 || opa >= (unsigned int) fc->ncols)
4779 reg_prefix = bad_reg;
4780 if (! do_debug_frames_interp || *reg_prefix != '\0')
4781 printf (" DW_CFA_restore: %s%s\n",
4782 reg_prefix, regname (opa, 0));
4783 if (*reg_prefix == '\0')
4784 {
4785 fc->col_type[opa] = cie->col_type[opa];
4786 fc->col_offset[opa] = cie->col_offset[opa];
4787 }
4788 break;
4789
4790 case DW_CFA_set_loc:
4791 vma = get_encoded_value (start, fc->fde_encoding, section);
4792 start += encoded_ptr_size;
4793 if (do_debug_frames_interp)
4794 frame_display_row (fc, &need_col_headers, &max_regs);
4795 else
4796 printf (" DW_CFA_set_loc: %08lx\n", (unsigned long)vma);
4797 fc->pc_begin = vma;
4798 break;
4799
4800 case DW_CFA_advance_loc1:
4801 ofs = byte_get (start, 1); start += 1;
4802 if (do_debug_frames_interp)
4803 frame_display_row (fc, &need_col_headers, &max_regs);
4804 else
4805 printf (" DW_CFA_advance_loc1: %ld to %08lx\n",
4806 ofs * fc->code_factor,
4807 fc->pc_begin + ofs * fc->code_factor);
4808 fc->pc_begin += ofs * fc->code_factor;
4809 break;
4810
4811 case DW_CFA_advance_loc2:
4812 ofs = byte_get (start, 2); start += 2;
4813 if (do_debug_frames_interp)
4814 frame_display_row (fc, &need_col_headers, &max_regs);
4815 else
4816 printf (" DW_CFA_advance_loc2: %ld to %08lx\n",
4817 ofs * fc->code_factor,
4818 fc->pc_begin + ofs * fc->code_factor);
4819 fc->pc_begin += ofs * fc->code_factor;
4820 break;
4821
4822 case DW_CFA_advance_loc4:
4823 ofs = byte_get (start, 4); start += 4;
4824 if (do_debug_frames_interp)
4825 frame_display_row (fc, &need_col_headers, &max_regs);
4826 else
4827 printf (" DW_CFA_advance_loc4: %ld to %08lx\n",
4828 ofs * fc->code_factor,
4829 fc->pc_begin + ofs * fc->code_factor);
4830 fc->pc_begin += ofs * fc->code_factor;
4831 break;
4832
4833 case DW_CFA_offset_extended:
4834 reg = LEB ();
4835 roffs = LEB ();
4836 if (reg >= (unsigned int) fc->ncols)
4837 reg_prefix = bad_reg;
4838 if (! do_debug_frames_interp || *reg_prefix != '\0')
4839 printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n",
4840 reg_prefix, regname (reg, 0),
4841 roffs * fc->data_factor);
4842 if (*reg_prefix == '\0')
4843 {
4844 fc->col_type[reg] = DW_CFA_offset;
4845 fc->col_offset[reg] = roffs * fc->data_factor;
4846 }
4847 break;
4848
4849 case DW_CFA_val_offset:
4850 reg = LEB ();
4851 roffs = LEB ();
4852 if (reg >= (unsigned int) fc->ncols)
4853 reg_prefix = bad_reg;
4854 if (! do_debug_frames_interp || *reg_prefix != '\0')
4855 printf (" DW_CFA_val_offset: %s%s at cfa%+ld\n",
4856 reg_prefix, regname (reg, 0),
4857 roffs * fc->data_factor);
4858 if (*reg_prefix == '\0')
4859 {
4860 fc->col_type[reg] = DW_CFA_val_offset;
4861 fc->col_offset[reg] = roffs * fc->data_factor;
4862 }
4863 break;
4864
4865 case DW_CFA_restore_extended:
4866 reg = LEB ();
4867 if (reg >= (unsigned int) cie->ncols
4868 || reg >= (unsigned int) fc->ncols)
4869 reg_prefix = bad_reg;
4870 if (! do_debug_frames_interp || *reg_prefix != '\0')
4871 printf (" DW_CFA_restore_extended: %s%s\n",
4872 reg_prefix, regname (reg, 0));
4873 if (*reg_prefix == '\0')
4874 {
4875 fc->col_type[reg] = cie->col_type[reg];
4876 fc->col_offset[reg] = cie->col_offset[reg];
4877 }
4878 break;
4879
4880 case DW_CFA_undefined:
4881 reg = LEB ();
4882 if (reg >= (unsigned int) fc->ncols)
4883 reg_prefix = bad_reg;
4884 if (! do_debug_frames_interp || *reg_prefix != '\0')
4885 printf (" DW_CFA_undefined: %s%s\n",
4886 reg_prefix, regname (reg, 0));
4887 if (*reg_prefix == '\0')
4888 {
4889 fc->col_type[reg] = DW_CFA_undefined;
4890 fc->col_offset[reg] = 0;
4891 }
4892 break;
4893
4894 case DW_CFA_same_value:
4895 reg = LEB ();
4896 if (reg >= (unsigned int) fc->ncols)
4897 reg_prefix = bad_reg;
4898 if (! do_debug_frames_interp || *reg_prefix != '\0')
4899 printf (" DW_CFA_same_value: %s%s\n",
4900 reg_prefix, regname (reg, 0));
4901 if (*reg_prefix == '\0')
4902 {
4903 fc->col_type[reg] = DW_CFA_same_value;
4904 fc->col_offset[reg] = 0;
4905 }
4906 break;
4907
4908 case DW_CFA_register:
4909 reg = LEB ();
4910 roffs = LEB ();
4911 if (reg >= (unsigned int) fc->ncols)
4912 reg_prefix = bad_reg;
4913 if (! do_debug_frames_interp || *reg_prefix != '\0')
4914 {
4915 printf (" DW_CFA_register: %s%s in ",
4916 reg_prefix, regname (reg, 0));
4917 puts (regname (roffs, 0));
4918 }
4919 if (*reg_prefix == '\0')
4920 {
4921 fc->col_type[reg] = DW_CFA_register;
4922 fc->col_offset[reg] = roffs;
4923 }
4924 break;
4925
4926 case DW_CFA_remember_state:
4927 if (! do_debug_frames_interp)
4928 printf (" DW_CFA_remember_state\n");
4929 rs = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk));
4930 rs->ncols = fc->ncols;
4931 rs->col_type = (short int *) xcmalloc (rs->ncols,
4932 sizeof (short int));
4933 rs->col_offset = (int *) xcmalloc (rs->ncols, sizeof (int));
4934 memcpy (rs->col_type, fc->col_type, rs->ncols);
4935 memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int));
4936 rs->next = remembered_state;
4937 remembered_state = rs;
4938 break;
4939
4940 case DW_CFA_restore_state:
4941 if (! do_debug_frames_interp)
4942 printf (" DW_CFA_restore_state\n");
4943 rs = remembered_state;
4944 if (rs)
4945 {
4946 remembered_state = rs->next;
4947 frame_need_space (fc, rs->ncols - 1);
4948 memcpy (fc->col_type, rs->col_type, rs->ncols);
4949 memcpy (fc->col_offset, rs->col_offset,
4950 rs->ncols * sizeof (int));
4951 free (rs->col_type);
4952 free (rs->col_offset);
4953 free (rs);
4954 }
4955 else if (do_debug_frames_interp)
4956 printf ("Mismatched DW_CFA_restore_state\n");
4957 break;
4958
4959 case DW_CFA_def_cfa:
4960 fc->cfa_reg = LEB ();
4961 fc->cfa_offset = LEB ();
4962 fc->cfa_exp = 0;
4963 if (! do_debug_frames_interp)
4964 printf (" DW_CFA_def_cfa: %s ofs %d\n",
4965 regname (fc->cfa_reg, 0), fc->cfa_offset);
4966 break;
4967
4968 case DW_CFA_def_cfa_register:
4969 fc->cfa_reg = LEB ();
4970 fc->cfa_exp = 0;
4971 if (! do_debug_frames_interp)
4972 printf (" DW_CFA_def_cfa_register: %s\n",
4973 regname (fc->cfa_reg, 0));
4974 break;
4975
4976 case DW_CFA_def_cfa_offset:
4977 fc->cfa_offset = LEB ();
4978 if (! do_debug_frames_interp)
4979 printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset);
4980 break;
4981
4982 case DW_CFA_nop:
4983 if (! do_debug_frames_interp)
4984 printf (" DW_CFA_nop\n");
4985 break;
4986
4987 case DW_CFA_def_cfa_expression:
4988 ul = LEB ();
4989 if (! do_debug_frames_interp)
4990 {
4991 printf (" DW_CFA_def_cfa_expression (");
4992 decode_location_expression (start, eh_addr_size, 0, -1,
4993 ul, 0, section);
4994 printf (")\n");
4995 }
4996 fc->cfa_exp = 1;
4997 start += ul;
4998 break;
4999
5000 case DW_CFA_expression:
5001 reg = LEB ();
5002 ul = LEB ();
5003 if (reg >= (unsigned int) fc->ncols)
5004 reg_prefix = bad_reg;
5005 if (! do_debug_frames_interp || *reg_prefix != '\0')
5006 {
5007 printf (" DW_CFA_expression: %s%s (",
5008 reg_prefix, regname (reg, 0));
5009 decode_location_expression (start, eh_addr_size, 0, -1,
5010 ul, 0, section);
5011 printf (")\n");
5012 }
5013 if (*reg_prefix == '\0')
5014 fc->col_type[reg] = DW_CFA_expression;
5015 start += ul;
5016 break;
5017
5018 case DW_CFA_val_expression:
5019 reg = LEB ();
5020 ul = LEB ();
5021 if (reg >= (unsigned int) fc->ncols)
5022 reg_prefix = bad_reg;
5023 if (! do_debug_frames_interp || *reg_prefix != '\0')
5024 {
5025 printf (" DW_CFA_val_expression: %s%s (",
5026 reg_prefix, regname (reg, 0));
5027 decode_location_expression (start, eh_addr_size, 0, -1,
5028 ul, 0, section);
5029 printf (")\n");
5030 }
5031 if (*reg_prefix == '\0')
5032 fc->col_type[reg] = DW_CFA_val_expression;
5033 start += ul;
5034 break;
5035
5036 case DW_CFA_offset_extended_sf:
5037 reg = LEB ();
5038 l = SLEB ();
5039 if (frame_need_space (fc, reg) < 0)
5040 reg_prefix = bad_reg;
5041 if (! do_debug_frames_interp || *reg_prefix != '\0')
5042 printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n",
5043 reg_prefix, regname (reg, 0),
5044 l * fc->data_factor);
5045 if (*reg_prefix == '\0')
5046 {
5047 fc->col_type[reg] = DW_CFA_offset;
5048 fc->col_offset[reg] = l * fc->data_factor;
5049 }
5050 break;
5051
5052 case DW_CFA_val_offset_sf:
5053 reg = LEB ();
5054 l = SLEB ();
5055 if (frame_need_space (fc, reg) < 0)
5056 reg_prefix = bad_reg;
5057 if (! do_debug_frames_interp || *reg_prefix != '\0')
5058 printf (" DW_CFA_val_offset_sf: %s%s at cfa%+ld\n",
5059 reg_prefix, regname (reg, 0),
5060 l * fc->data_factor);
5061 if (*reg_prefix == '\0')
5062 {
5063 fc->col_type[reg] = DW_CFA_val_offset;
5064 fc->col_offset[reg] = l * fc->data_factor;
5065 }
5066 break;
5067
5068 case DW_CFA_def_cfa_sf:
5069 fc->cfa_reg = LEB ();
5070 fc->cfa_offset = SLEB ();
5071 fc->cfa_offset = fc->cfa_offset * fc->data_factor;
5072 fc->cfa_exp = 0;
5073 if (! do_debug_frames_interp)
5074 printf (" DW_CFA_def_cfa_sf: %s ofs %d\n",
5075 regname (fc->cfa_reg, 0), fc->cfa_offset);
5076 break;
5077
5078 case DW_CFA_def_cfa_offset_sf:
5079 fc->cfa_offset = SLEB ();
5080 fc->cfa_offset = fc->cfa_offset * fc->data_factor;
5081 if (! do_debug_frames_interp)
5082 printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset);
5083 break;
5084
5085 case DW_CFA_MIPS_advance_loc8:
5086 ofs = byte_get (start, 8); start += 8;
5087 if (do_debug_frames_interp)
5088 frame_display_row (fc, &need_col_headers, &max_regs);
5089 else
5090 printf (" DW_CFA_MIPS_advance_loc8: %ld to %08lx\n",
5091 ofs * fc->code_factor,
5092 fc->pc_begin + ofs * fc->code_factor);
5093 fc->pc_begin += ofs * fc->code_factor;
5094 break;
5095
5096 case DW_CFA_GNU_window_save:
5097 if (! do_debug_frames_interp)
5098 printf (" DW_CFA_GNU_window_save\n");
5099 break;
5100
5101 case DW_CFA_GNU_args_size:
5102 ul = LEB ();
5103 if (! do_debug_frames_interp)
5104 printf (" DW_CFA_GNU_args_size: %ld\n", ul);
5105 break;
5106
5107 case DW_CFA_GNU_negative_offset_extended:
5108 reg = LEB ();
5109 l = - LEB ();
5110 if (frame_need_space (fc, reg) < 0)
5111 reg_prefix = bad_reg;
5112 if (! do_debug_frames_interp || *reg_prefix != '\0')
5113 printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n",
5114 reg_prefix, regname (reg, 0),
5115 l * fc->data_factor);
5116 if (*reg_prefix == '\0')
5117 {
5118 fc->col_type[reg] = DW_CFA_offset;
5119 fc->col_offset[reg] = l * fc->data_factor;
5120 }
5121 break;
5122
5123 default:
5124 if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user)
5125 printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op);
5126 else
5127 warn (_("unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op);
5128 start = block_end;
5129 }
5130 }
5131
5132 if (do_debug_frames_interp)
5133 frame_display_row (fc, &need_col_headers, &max_regs);
5134
5135 start = block_end;
5136 eh_addr_size = saved_eh_addr_size;
5137 }
5138
5139 printf ("\n");
5140
5141 return 1;
5142 }
5143
5144 #undef GET
5145 #undef LEB
5146 #undef SLEB
5147
5148 static int
5149 display_gdb_index (struct dwarf_section *section,
5150 void *file ATTRIBUTE_UNUSED)
5151 {
5152 unsigned char *start = section->start;
5153 uint32_t version;
5154 uint32_t cu_list_offset, tu_list_offset;
5155 uint32_t address_table_offset, symbol_table_offset, constant_pool_offset;
5156 unsigned int cu_list_elements, tu_list_elements;
5157 unsigned int address_table_size, symbol_table_slots;
5158 unsigned char *cu_list, *tu_list;
5159 unsigned char *address_table, *symbol_table, *constant_pool;
5160 unsigned int i;
5161
5162 /* The documentation for the format of this file is in gdb/dwarf2read.c. */
5163
5164 printf (_("Contents of the %s section:\n"), section->name);
5165
5166 if (section->size < 6 * sizeof (uint32_t))
5167 {
5168 warn (_("Truncated header in the %s section.\n"), section->name);
5169 return 0;
5170 }
5171
5172 version = byte_get_little_endian (start, 4);
5173 printf (_("Version %ld\n"), (long) version);
5174
5175 /* Prior versions are obsolete, and future versions may not be
5176 backwards compatible. */
5177 switch (version)
5178 {
5179 case 3:
5180 warn (_("The address table data in version 3 may be wrong.\n"));
5181 break;
5182 case 4:
5183 warn (_("Version 4 does not support case insensitive lookups.\n"));
5184 break;
5185 case 5:
5186 break;
5187 default:
5188 warn (_("Unsupported version %lu.\n"), (unsigned long) version);
5189 return 0;
5190 }
5191
5192 cu_list_offset = byte_get_little_endian (start + 4, 4);
5193 tu_list_offset = byte_get_little_endian (start + 8, 4);
5194 address_table_offset = byte_get_little_endian (start + 12, 4);
5195 symbol_table_offset = byte_get_little_endian (start + 16, 4);
5196 constant_pool_offset = byte_get_little_endian (start + 20, 4);
5197
5198 if (cu_list_offset > section->size
5199 || tu_list_offset > section->size
5200 || address_table_offset > section->size
5201 || symbol_table_offset > section->size
5202 || constant_pool_offset > section->size)
5203 {
5204 warn (_("Corrupt header in the %s section.\n"), section->name);
5205 return 0;
5206 }
5207
5208 cu_list_elements = (tu_list_offset - cu_list_offset) / 8;
5209 tu_list_elements = (address_table_offset - tu_list_offset) / 8;
5210 address_table_size = symbol_table_offset - address_table_offset;
5211 symbol_table_slots = (constant_pool_offset - symbol_table_offset) / 8;
5212
5213 cu_list = start + cu_list_offset;
5214 tu_list = start + tu_list_offset;
5215 address_table = start + address_table_offset;
5216 symbol_table = start + symbol_table_offset;
5217 constant_pool = start + constant_pool_offset;
5218
5219 printf (_("\nCU table:\n"));
5220 for (i = 0; i < cu_list_elements; i += 2)
5221 {
5222 uint64_t cu_offset = byte_get_little_endian (cu_list + i * 8, 8);
5223 uint64_t cu_length = byte_get_little_endian (cu_list + i * 8 + 8, 8);
5224
5225 printf (_("[%3u] 0x%lx - 0x%lx\n"), i / 2,
5226 (unsigned long) cu_offset,
5227 (unsigned long) (cu_offset + cu_length - 1));
5228 }
5229
5230 printf (_("\nTU table:\n"));
5231 for (i = 0; i < tu_list_elements; i += 3)
5232 {
5233 uint64_t tu_offset = byte_get_little_endian (tu_list + i * 8, 8);
5234 uint64_t type_offset = byte_get_little_endian (tu_list + i * 8 + 8, 8);
5235 uint64_t signature = byte_get_little_endian (tu_list + i * 8 + 16, 8);
5236
5237 printf (_("[%3u] 0x%lx 0x%lx "), i / 3,
5238 (unsigned long) tu_offset,
5239 (unsigned long) type_offset);
5240 print_dwarf_vma (signature, 8);
5241 printf ("\n");
5242 }
5243
5244 printf (_("\nAddress table:\n"));
5245 for (i = 0; i < address_table_size; i += 2 * 8 + 4)
5246 {
5247 uint64_t low = byte_get_little_endian (address_table + i, 8);
5248 uint64_t high = byte_get_little_endian (address_table + i + 8, 8);
5249 uint32_t cu_index = byte_get_little_endian (address_table + i + 16, 4);
5250
5251 print_dwarf_vma (low, 8);
5252 print_dwarf_vma (high, 8);
5253 printf (_("%lu\n"), (unsigned long) cu_index);
5254 }
5255
5256 printf (_("\nSymbol table:\n"));
5257 for (i = 0; i < symbol_table_slots; ++i)
5258 {
5259 uint32_t name_offset = byte_get_little_endian (symbol_table + i * 8, 4);
5260 uint32_t cu_vector_offset = byte_get_little_endian (symbol_table + i * 8 + 4, 4);
5261 uint32_t num_cus, cu;
5262
5263 if (name_offset != 0
5264 || cu_vector_offset != 0)
5265 {
5266 unsigned int j;
5267
5268 printf ("[%3u] %s:", i, constant_pool + name_offset);
5269 num_cus = byte_get_little_endian (constant_pool + cu_vector_offset, 4);
5270 for (j = 0; j < num_cus; ++j)
5271 {
5272 cu = byte_get_little_endian (constant_pool + cu_vector_offset + 4 + j * 4, 4);
5273 /* Convert to TU number if it's for a type unit. */
5274 if (cu >= cu_list_elements / 2)
5275 printf (" T%lu", (unsigned long) (cu - cu_list_elements / 2));
5276 else
5277 printf (" %lu", (unsigned long) cu);
5278 }
5279 printf ("\n");
5280 }
5281 }
5282
5283 return 1;
5284 }
5285
5286 static int
5287 display_debug_not_supported (struct dwarf_section *section,
5288 void *file ATTRIBUTE_UNUSED)
5289 {
5290 printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
5291 section->name);
5292
5293 return 1;
5294 }
5295
5296 void *
5297 cmalloc (size_t nmemb, size_t size)
5298 {
5299 /* Check for overflow. */
5300 if (nmemb >= ~(size_t) 0 / size)
5301 return NULL;
5302 else
5303 return malloc (nmemb * size);
5304 }
5305
5306 void *
5307 xcmalloc (size_t nmemb, size_t size)
5308 {
5309 /* Check for overflow. */
5310 if (nmemb >= ~(size_t) 0 / size)
5311 return NULL;
5312 else
5313 return xmalloc (nmemb * size);
5314 }
5315
5316 void *
5317 xcrealloc (void *ptr, size_t nmemb, size_t size)
5318 {
5319 /* Check for overflow. */
5320 if (nmemb >= ~(size_t) 0 / size)
5321 return NULL;
5322 else
5323 return xrealloc (ptr, nmemb * size);
5324 }
5325
5326 void
5327 free_debug_memory (void)
5328 {
5329 unsigned int i;
5330
5331 free_abbrevs ();
5332
5333 for (i = 0; i < max; i++)
5334 free_debug_section ((enum dwarf_section_display_enum) i);
5335
5336 if (debug_information != NULL)
5337 {
5338 if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE)
5339 {
5340 for (i = 0; i < num_debug_info_entries; i++)
5341 {
5342 if (!debug_information [i].max_loc_offsets)
5343 {
5344 free (debug_information [i].loc_offsets);
5345 free (debug_information [i].have_frame_base);
5346 }
5347 if (!debug_information [i].max_range_lists)
5348 free (debug_information [i].range_lists);
5349 }
5350 }
5351
5352 free (debug_information);
5353 debug_information = NULL;
5354 num_debug_info_entries = 0;
5355 }
5356 }
5357
5358 void
5359 dwarf_select_sections_by_names (const char *names)
5360 {
5361 typedef struct
5362 {
5363 const char * option;
5364 int * variable;
5365 int val;
5366 }
5367 debug_dump_long_opts;
5368
5369 static const debug_dump_long_opts opts_table [] =
5370 {
5371 /* Please keep this table alpha- sorted. */
5372 { "Ranges", & do_debug_ranges, 1 },
5373 { "abbrev", & do_debug_abbrevs, 1 },
5374 { "aranges", & do_debug_aranges, 1 },
5375 { "frames", & do_debug_frames, 1 },
5376 { "frames-interp", & do_debug_frames_interp, 1 },
5377 { "info", & do_debug_info, 1 },
5378 { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */
5379 { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW },
5380 { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED },
5381 { "loc", & do_debug_loc, 1 },
5382 { "macro", & do_debug_macinfo, 1 },
5383 { "pubnames", & do_debug_pubnames, 1 },
5384 { "pubtypes", & do_debug_pubtypes, 1 },
5385 /* This entry is for compatability
5386 with earlier versions of readelf. */
5387 { "ranges", & do_debug_aranges, 1 },
5388 { "str", & do_debug_str, 1 },
5389 /* The special .gdb_index section. */
5390 { "gdb_index", & do_gdb_index, 1 },
5391 /* These trace_* sections are used by Itanium VMS. */
5392 { "trace_abbrev", & do_trace_abbrevs, 1 },
5393 { "trace_aranges", & do_trace_aranges, 1 },
5394 { "trace_info", & do_trace_info, 1 },
5395 { NULL, NULL, 0 }
5396 };
5397
5398 const char *p;
5399
5400 p = names;
5401 while (*p)
5402 {
5403 const debug_dump_long_opts * entry;
5404
5405 for (entry = opts_table; entry->option; entry++)
5406 {
5407 size_t len = strlen (entry->option);
5408
5409 if (strncmp (p, entry->option, len) == 0
5410 && (p[len] == ',' || p[len] == '\0'))
5411 {
5412 * entry->variable |= entry->val;
5413
5414 /* The --debug-dump=frames-interp option also
5415 enables the --debug-dump=frames option. */
5416 if (do_debug_frames_interp)
5417 do_debug_frames = 1;
5418
5419 p += len;
5420 break;
5421 }
5422 }
5423
5424 if (entry->option == NULL)
5425 {
5426 warn (_("Unrecognized debug option '%s'\n"), p);
5427 p = strchr (p, ',');
5428 if (p == NULL)
5429 break;
5430 }
5431
5432 if (*p == ',')
5433 p++;
5434 }
5435 }
5436
5437 void
5438 dwarf_select_sections_by_letters (const char *letters)
5439 {
5440 unsigned int lindex = 0;
5441
5442 while (letters[lindex])
5443 switch (letters[lindex++])
5444 {
5445 case 'i':
5446 do_debug_info = 1;
5447 break;
5448
5449 case 'a':
5450 do_debug_abbrevs = 1;
5451 break;
5452
5453 case 'l':
5454 do_debug_lines |= FLAG_DEBUG_LINES_RAW;
5455 break;
5456
5457 case 'L':
5458 do_debug_lines |= FLAG_DEBUG_LINES_DECODED;
5459 break;
5460
5461 case 'p':
5462 do_debug_pubnames = 1;
5463 break;
5464
5465 case 't':
5466 do_debug_pubtypes = 1;
5467 break;
5468
5469 case 'r':
5470 do_debug_aranges = 1;
5471 break;
5472
5473 case 'R':
5474 do_debug_ranges = 1;
5475 break;
5476
5477 case 'F':
5478 do_debug_frames_interp = 1;
5479 case 'f':
5480 do_debug_frames = 1;
5481 break;
5482
5483 case 'm':
5484 do_debug_macinfo = 1;
5485 break;
5486
5487 case 's':
5488 do_debug_str = 1;
5489 break;
5490
5491 case 'o':
5492 do_debug_loc = 1;
5493 break;
5494
5495 default:
5496 warn (_("Unrecognized debug option '%s'\n"), optarg);
5497 break;
5498 }
5499 }
5500
5501 void
5502 dwarf_select_sections_all (void)
5503 {
5504 do_debug_info = 1;
5505 do_debug_abbrevs = 1;
5506 do_debug_lines = FLAG_DEBUG_LINES_RAW;
5507 do_debug_pubnames = 1;
5508 do_debug_pubtypes = 1;
5509 do_debug_aranges = 1;
5510 do_debug_ranges = 1;
5511 do_debug_frames = 1;
5512 do_debug_macinfo = 1;
5513 do_debug_str = 1;
5514 do_debug_loc = 1;
5515 do_gdb_index = 1;
5516 do_trace_info = 1;
5517 do_trace_abbrevs = 1;
5518 do_trace_aranges = 1;
5519 }
5520
5521 struct dwarf_section_display debug_displays[] =
5522 {
5523 { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0 },
5524 display_debug_abbrev, &do_debug_abbrevs, 0 },
5525 { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0 },
5526 display_debug_aranges, &do_debug_aranges, 1 },
5527 { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0 },
5528 display_debug_frames, &do_debug_frames, 1 },
5529 { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0 },
5530 display_debug_info, &do_debug_info, 1 },
5531 { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0 },
5532 display_debug_lines, &do_debug_lines, 1 },
5533 { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0 },
5534 display_debug_pubnames, &do_debug_pubnames, 0 },
5535 { { ".eh_frame", "", NULL, NULL, 0, 0 },
5536 display_debug_frames, &do_debug_frames, 1 },
5537 { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0 },
5538 display_debug_macinfo, &do_debug_macinfo, 0 },
5539 { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0 },
5540 display_debug_str, &do_debug_str, 0 },
5541 { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0 },
5542 display_debug_loc, &do_debug_loc, 1 },
5543 { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0 },
5544 display_debug_pubnames, &do_debug_pubtypes, 0 },
5545 { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0 },
5546 display_debug_ranges, &do_debug_ranges, 1 },
5547 { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0 },
5548 display_debug_not_supported, NULL, 0 },
5549 { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0 },
5550 display_debug_not_supported, NULL, 0 },
5551 { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0 },
5552 display_debug_types, &do_debug_info, 1 },
5553 { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0 },
5554 display_debug_not_supported, NULL, 0 },
5555 { { ".gdb_index", "", NULL, NULL, 0, 0 },
5556 display_gdb_index, &do_gdb_index, 0 },
5557 { { ".trace_info", "", NULL, NULL, 0, 0 },
5558 display_trace_info, &do_trace_info, 1 },
5559 { { ".trace_abbrev", "", NULL, NULL, 0, 0 },
5560 display_debug_abbrev, &do_trace_abbrevs, 0 },
5561 { { ".trace_aranges", "", NULL, NULL, 0, 0 },
5562 display_debug_aranges, &do_trace_aranges, 0 }
5563 };
GDB Binutils - Deliverables
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