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[binutils.git] / binutils / dwarf.c
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1 /* dwarf.c -- display DWARF contents of a BFD binary file
2 Copyright 2005, 2006, 2007, 2008, 2009, 2010
3 Free Software Foundation, Inc.
5 This file is part of GNU Binutils.
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.
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.
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. */
22 #include "sysdep.h"
23 #include "libiberty.h"
24 #include "bfd.h"
25 #include "bucomm.h"
26 #include "elf/common.h"
27 #include "dwarf2.h"
28 #include "dwarf.h"
30 static int have_frame_base;
31 static int need_base_address;
33 static unsigned int last_pointer_size = 0;
34 static int warned_about_missing_comp_units = FALSE;
36 static unsigned int num_debug_info_entries = 0;
37 static debug_info *debug_information = NULL;
38 /* Special value for num_debug_info_entries to indicate
39 that the .debug_info section could not be loaded/parsed. */
40 #define DEBUG_INFO_UNAVAILABLE (unsigned int) -1
42 int eh_addr_size;
44 int do_debug_info;
45 int do_debug_abbrevs;
46 int do_debug_lines;
47 int do_debug_pubnames;
48 int do_debug_pubtypes;
49 int do_debug_aranges;
50 int do_debug_ranges;
51 int do_debug_frames;
52 int do_debug_frames_interp;
53 int do_debug_macinfo;
54 int do_debug_str;
55 int do_debug_loc;
56 int do_wide;
58 /* Values for do_debug_lines. */
59 #define FLAG_DEBUG_LINES_RAW 1
60 #define FLAG_DEBUG_LINES_DECODED 2
62 dwarf_vma (*byte_get) (unsigned char *, int);
64 dwarf_vma
65 byte_get_little_endian (unsigned char *field, int size)
67 switch (size)
69 case 1:
70 return *field;
72 case 2:
73 return ((unsigned int) (field[0]))
74 | (((unsigned int) (field[1])) << 8);
76 case 3:
77 return ((unsigned long) (field[0]))
78 | (((unsigned long) (field[1])) << 8)
79 | (((unsigned long) (field[2])) << 16);
81 case 4:
82 return ((unsigned long) (field[0]))
83 | (((unsigned long) (field[1])) << 8)
84 | (((unsigned long) (field[2])) << 16)
85 | (((unsigned long) (field[3])) << 24);
87 case 8:
88 if (sizeof (dwarf_vma) == 8)
89 return ((dwarf_vma) (field[0]))
90 | (((dwarf_vma) (field[1])) << 8)
91 | (((dwarf_vma) (field[2])) << 16)
92 | (((dwarf_vma) (field[3])) << 24)
93 | (((dwarf_vma) (field[4])) << 32)
94 | (((dwarf_vma) (field[5])) << 40)
95 | (((dwarf_vma) (field[6])) << 48)
96 | (((dwarf_vma) (field[7])) << 56);
97 else if (sizeof (dwarf_vma) == 4)
98 /* We want to extract data from an 8 byte wide field and
99 place it into a 4 byte wide field. Since this is a little
100 endian source we can just use the 4 byte extraction code. */
101 return ((unsigned long) (field[0]))
102 | (((unsigned long) (field[1])) << 8)
103 | (((unsigned long) (field[2])) << 16)
104 | (((unsigned long) (field[3])) << 24);
106 default:
107 error (_("Unhandled data length: %d\n"), size);
108 abort ();
112 dwarf_vma
113 byte_get_big_endian (unsigned char *field, int size)
115 switch (size)
117 case 1:
118 return *field;
120 case 2:
121 return ((unsigned int) (field[1])) | (((int) (field[0])) << 8);
123 case 3:
124 return ((unsigned long) (field[2]))
125 | (((unsigned long) (field[1])) << 8)
126 | (((unsigned long) (field[0])) << 16);
128 case 4:
129 return ((unsigned long) (field[3]))
130 | (((unsigned long) (field[2])) << 8)
131 | (((unsigned long) (field[1])) << 16)
132 | (((unsigned long) (field[0])) << 24);
134 case 8:
135 if (sizeof (dwarf_vma) == 8)
136 return ((dwarf_vma) (field[7]))
137 | (((dwarf_vma) (field[6])) << 8)
138 | (((dwarf_vma) (field[5])) << 16)
139 | (((dwarf_vma) (field[4])) << 24)
140 | (((dwarf_vma) (field[3])) << 32)
141 | (((dwarf_vma) (field[2])) << 40)
142 | (((dwarf_vma) (field[1])) << 48)
143 | (((dwarf_vma) (field[0])) << 56);
144 else if (sizeof (dwarf_vma) == 4)
146 /* Although we are extracing data from an 8 byte wide field,
147 we are returning only 4 bytes of data. */
148 field += 4;
149 return ((unsigned long) (field[3]))
150 | (((unsigned long) (field[2])) << 8)
151 | (((unsigned long) (field[1])) << 16)
152 | (((unsigned long) (field[0])) << 24);
155 default:
156 error (_("Unhandled data length: %d\n"), size);
157 abort ();
161 static dwarf_vma
162 byte_get_signed (unsigned char *field, int size)
164 dwarf_vma x = byte_get (field, size);
166 switch (size)
168 case 1:
169 return (x ^ 0x80) - 0x80;
170 case 2:
171 return (x ^ 0x8000) - 0x8000;
172 case 4:
173 return (x ^ 0x80000000) - 0x80000000;
174 case 8:
175 return x;
176 default:
177 abort ();
181 static int
182 size_of_encoded_value (int encoding)
184 switch (encoding & 0x7)
186 default: /* ??? */
187 case 0: return eh_addr_size;
188 case 2: return 2;
189 case 3: return 4;
190 case 4: return 8;
194 static dwarf_vma
195 get_encoded_value (unsigned char *data, int encoding)
197 int size = size_of_encoded_value (encoding);
199 if (encoding & DW_EH_PE_signed)
200 return byte_get_signed (data, size);
201 else
202 return byte_get (data, size);
205 /* Print a dwarf_vma value (typically an address, offset or length) in
206 hexadecimal format, followed by a space. The length of the value (and
207 hence the precision displayed) is determined by the byte_size parameter. */
209 static void
210 print_dwarf_vma (dwarf_vma val, unsigned byte_size)
212 static char buff[18];
214 /* Printf does not have a way of specifiying a maximum field width for an
215 integer value, so we print the full value into a buffer and then select
216 the precision we need. */
217 #if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2)
218 #ifndef __MSVCRT__
219 snprintf (buff, sizeof (buff), "%16.16llx ", val);
220 #else
221 snprintf (buff, sizeof (buff), "%016I64x ", val);
222 #endif
223 #else
224 snprintf (buff, sizeof (buff), "%16.16lx ", val);
225 #endif
227 fputs (buff + (byte_size == 4 ? 8 : 0), stdout);
230 unsigned long int
231 read_leb128 (unsigned char *data, unsigned int *length_return, int sign)
233 unsigned long int result = 0;
234 unsigned int num_read = 0;
235 unsigned int shift = 0;
236 unsigned char byte;
240 byte = *data++;
241 num_read++;
243 result |= ((unsigned long int) (byte & 0x7f)) << shift;
245 shift += 7;
248 while (byte & 0x80);
250 if (length_return != NULL)
251 *length_return = num_read;
253 if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40))
254 result |= -1L << shift;
256 return result;
259 typedef struct State_Machine_Registers
261 unsigned long address;
262 unsigned int file;
263 unsigned int line;
264 unsigned int column;
265 int is_stmt;
266 int basic_block;
267 unsigned char op_index;
268 unsigned char end_sequence;
269 /* This variable hold the number of the last entry seen
270 in the File Table. */
271 unsigned int last_file_entry;
272 } SMR;
274 static SMR state_machine_regs;
276 static void
277 reset_state_machine (int is_stmt)
279 state_machine_regs.address = 0;
280 state_machine_regs.op_index = 0;
281 state_machine_regs.file = 1;
282 state_machine_regs.line = 1;
283 state_machine_regs.column = 0;
284 state_machine_regs.is_stmt = is_stmt;
285 state_machine_regs.basic_block = 0;
286 state_machine_regs.end_sequence = 0;
287 state_machine_regs.last_file_entry = 0;
290 /* Handled an extend line op.
291 Returns the number of bytes read. */
293 static int
294 process_extended_line_op (unsigned char *data, int is_stmt)
296 unsigned char op_code;
297 unsigned int bytes_read;
298 unsigned int len;
299 unsigned char *name;
300 unsigned long adr;
302 len = read_leb128 (data, & bytes_read, 0);
303 data += bytes_read;
305 if (len == 0)
307 warn (_("badly formed extended line op encountered!\n"));
308 return bytes_read;
311 len += bytes_read;
312 op_code = *data++;
314 printf (_(" Extended opcode %d: "), op_code);
316 switch (op_code)
318 case DW_LNE_end_sequence:
319 printf (_("End of Sequence\n\n"));
320 reset_state_machine (is_stmt);
321 break;
323 case DW_LNE_set_address:
324 adr = byte_get (data, len - bytes_read - 1);
325 printf (_("set Address to 0x%lx\n"), adr);
326 state_machine_regs.address = adr;
327 state_machine_regs.op_index = 0;
328 break;
330 case DW_LNE_define_file:
331 printf (_(" define new File Table entry\n"));
332 printf (_(" Entry\tDir\tTime\tSize\tName\n"));
334 printf (_(" %d\t"), ++state_machine_regs.last_file_entry);
335 name = data;
336 data += strlen ((char *) data) + 1;
337 printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
338 data += bytes_read;
339 printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
340 data += bytes_read;
341 printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
342 printf (_("%s\n\n"), name);
343 break;
345 case DW_LNE_set_discriminator:
346 printf (_("set Discriminator to %lu\n"),
347 read_leb128 (data, & bytes_read, 0));
348 break;
350 /* HP extensions. */
351 case DW_LNE_HP_negate_is_UV_update:
352 printf ("DW_LNE_HP_negate_is_UV_update\n");
353 break;
354 case DW_LNE_HP_push_context:
355 printf ("DW_LNE_HP_push_context\n");
356 break;
357 case DW_LNE_HP_pop_context:
358 printf ("DW_LNE_HP_pop_context\n");
359 break;
360 case DW_LNE_HP_set_file_line_column:
361 printf ("DW_LNE_HP_set_file_line_column\n");
362 break;
363 case DW_LNE_HP_set_routine_name:
364 printf ("DW_LNE_HP_set_routine_name\n");
365 break;
366 case DW_LNE_HP_set_sequence:
367 printf ("DW_LNE_HP_set_sequence\n");
368 break;
369 case DW_LNE_HP_negate_post_semantics:
370 printf ("DW_LNE_HP_negate_post_semantics\n");
371 break;
372 case DW_LNE_HP_negate_function_exit:
373 printf ("DW_LNE_HP_negate_function_exit\n");
374 break;
375 case DW_LNE_HP_negate_front_end_logical:
376 printf ("DW_LNE_HP_negate_front_end_logical\n");
377 break;
378 case DW_LNE_HP_define_proc:
379 printf ("DW_LNE_HP_define_proc\n");
380 break;
382 default:
383 if (op_code >= DW_LNE_lo_user
384 /* The test against DW_LNW_hi_user is redundant due to
385 the limited range of the unsigned char data type used
386 for op_code. */
387 /*&& op_code <= DW_LNE_hi_user*/)
388 printf (_("user defined: length %d\n"), len - bytes_read);
389 else
390 printf (_("UNKNOWN: length %d\n"), len - bytes_read);
391 break;
394 return len;
397 static const char *
398 fetch_indirect_string (unsigned long offset)
400 struct dwarf_section *section = &debug_displays [str].section;
402 if (section->start == NULL)
403 return _("<no .debug_str section>");
405 /* DWARF sections under Mach-O have non-zero addresses. */
406 offset -= section->address;
407 if (offset > section->size)
409 warn (_("DW_FORM_strp offset too big: %lx\n"), offset);
410 return _("<offset is too big>");
413 return (const char *) section->start + offset;
416 /* FIXME: There are better and more efficient ways to handle
417 these structures. For now though, I just want something that
418 is simple to implement. */
419 typedef struct abbrev_attr
421 unsigned long attribute;
422 unsigned long form;
423 struct abbrev_attr *next;
425 abbrev_attr;
427 typedef struct abbrev_entry
429 unsigned long entry;
430 unsigned long tag;
431 int children;
432 struct abbrev_attr *first_attr;
433 struct abbrev_attr *last_attr;
434 struct abbrev_entry *next;
436 abbrev_entry;
438 static abbrev_entry *first_abbrev = NULL;
439 static abbrev_entry *last_abbrev = NULL;
441 static void
442 free_abbrevs (void)
444 abbrev_entry *abbrv;
446 for (abbrv = first_abbrev; abbrv;)
448 abbrev_entry *next_abbrev = abbrv->next;
449 abbrev_attr *attr;
451 for (attr = abbrv->first_attr; attr;)
453 abbrev_attr *next_attr = attr->next;
455 free (attr);
456 attr = next_attr;
459 free (abbrv);
460 abbrv = next_abbrev;
463 last_abbrev = first_abbrev = NULL;
466 static void
467 add_abbrev (unsigned long number, unsigned long tag, int children)
469 abbrev_entry *entry;
471 entry = (abbrev_entry *) malloc (sizeof (*entry));
473 if (entry == NULL)
474 /* ugg */
475 return;
477 entry->entry = number;
478 entry->tag = tag;
479 entry->children = children;
480 entry->first_attr = NULL;
481 entry->last_attr = NULL;
482 entry->next = NULL;
484 if (first_abbrev == NULL)
485 first_abbrev = entry;
486 else
487 last_abbrev->next = entry;
489 last_abbrev = entry;
492 static void
493 add_abbrev_attr (unsigned long attribute, unsigned long form)
495 abbrev_attr *attr;
497 attr = (abbrev_attr *) malloc (sizeof (*attr));
499 if (attr == NULL)
500 /* ugg */
501 return;
503 attr->attribute = attribute;
504 attr->form = form;
505 attr->next = NULL;
507 if (last_abbrev->first_attr == NULL)
508 last_abbrev->first_attr = attr;
509 else
510 last_abbrev->last_attr->next = attr;
512 last_abbrev->last_attr = attr;
515 /* Processes the (partial) contents of a .debug_abbrev section.
516 Returns NULL if the end of the section was encountered.
517 Returns the address after the last byte read if the end of
518 an abbreviation set was found. */
520 static unsigned char *
521 process_abbrev_section (unsigned char *start, unsigned char *end)
523 if (first_abbrev != NULL)
524 return NULL;
526 while (start < end)
528 unsigned int bytes_read;
529 unsigned long entry;
530 unsigned long tag;
531 unsigned long attribute;
532 int children;
534 entry = read_leb128 (start, & bytes_read, 0);
535 start += bytes_read;
537 /* A single zero is supposed to end the section according
538 to the standard. If there's more, then signal that to
539 the caller. */
540 if (entry == 0)
541 return start == end ? NULL : start;
543 tag = read_leb128 (start, & bytes_read, 0);
544 start += bytes_read;
546 children = *start++;
548 add_abbrev (entry, tag, children);
552 unsigned long form;
554 attribute = read_leb128 (start, & bytes_read, 0);
555 start += bytes_read;
557 form = read_leb128 (start, & bytes_read, 0);
558 start += bytes_read;
560 if (attribute != 0)
561 add_abbrev_attr (attribute, form);
563 while (attribute != 0);
566 return NULL;
569 static char *
570 get_TAG_name (unsigned long tag)
572 switch (tag)
574 case DW_TAG_padding: return "DW_TAG_padding";
575 case DW_TAG_array_type: return "DW_TAG_array_type";
576 case DW_TAG_class_type: return "DW_TAG_class_type";
577 case DW_TAG_entry_point: return "DW_TAG_entry_point";
578 case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type";
579 case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter";
580 case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration";
581 case DW_TAG_label: return "DW_TAG_label";
582 case DW_TAG_lexical_block: return "DW_TAG_lexical_block";
583 case DW_TAG_member: return "DW_TAG_member";
584 case DW_TAG_pointer_type: return "DW_TAG_pointer_type";
585 case DW_TAG_reference_type: return "DW_TAG_reference_type";
586 case DW_TAG_compile_unit: return "DW_TAG_compile_unit";
587 case DW_TAG_string_type: return "DW_TAG_string_type";
588 case DW_TAG_structure_type: return "DW_TAG_structure_type";
589 case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type";
590 case DW_TAG_typedef: return "DW_TAG_typedef";
591 case DW_TAG_union_type: return "DW_TAG_union_type";
592 case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters";
593 case DW_TAG_variant: return "DW_TAG_variant";
594 case DW_TAG_common_block: return "DW_TAG_common_block";
595 case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion";
596 case DW_TAG_inheritance: return "DW_TAG_inheritance";
597 case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine";
598 case DW_TAG_module: return "DW_TAG_module";
599 case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type";
600 case DW_TAG_set_type: return "DW_TAG_set_type";
601 case DW_TAG_subrange_type: return "DW_TAG_subrange_type";
602 case DW_TAG_with_stmt: return "DW_TAG_with_stmt";
603 case DW_TAG_access_declaration: return "DW_TAG_access_declaration";
604 case DW_TAG_base_type: return "DW_TAG_base_type";
605 case DW_TAG_catch_block: return "DW_TAG_catch_block";
606 case DW_TAG_const_type: return "DW_TAG_const_type";
607 case DW_TAG_constant: return "DW_TAG_constant";
608 case DW_TAG_enumerator: return "DW_TAG_enumerator";
609 case DW_TAG_file_type: return "DW_TAG_file_type";
610 case DW_TAG_friend: return "DW_TAG_friend";
611 case DW_TAG_namelist: return "DW_TAG_namelist";
612 case DW_TAG_namelist_item: return "DW_TAG_namelist_item";
613 case DW_TAG_packed_type: return "DW_TAG_packed_type";
614 case DW_TAG_subprogram: return "DW_TAG_subprogram";
615 case DW_TAG_template_type_param: return "DW_TAG_template_type_param";
616 case DW_TAG_template_value_param: return "DW_TAG_template_value_param";
617 case DW_TAG_thrown_type: return "DW_TAG_thrown_type";
618 case DW_TAG_try_block: return "DW_TAG_try_block";
619 case DW_TAG_variant_part: return "DW_TAG_variant_part";
620 case DW_TAG_variable: return "DW_TAG_variable";
621 case DW_TAG_volatile_type: return "DW_TAG_volatile_type";
622 case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop";
623 case DW_TAG_format_label: return "DW_TAG_format_label";
624 case DW_TAG_function_template: return "DW_TAG_function_template";
625 case DW_TAG_class_template: return "DW_TAG_class_template";
626 /* DWARF 2.1 values. */
627 case DW_TAG_dwarf_procedure: return "DW_TAG_dwarf_procedure";
628 case DW_TAG_restrict_type: return "DW_TAG_restrict_type";
629 case DW_TAG_interface_type: return "DW_TAG_interface_type";
630 case DW_TAG_namespace: return "DW_TAG_namespace";
631 case DW_TAG_imported_module: return "DW_TAG_imported_module";
632 case DW_TAG_unspecified_type: return "DW_TAG_unspecified_type";
633 case DW_TAG_partial_unit: return "DW_TAG_partial_unit";
634 case DW_TAG_imported_unit: return "DW_TAG_imported_unit";
635 case DW_TAG_condition: return "DW_TAG_condition";
636 case DW_TAG_shared_type: return "DW_TAG_shared_type";
637 /* DWARF 4 values. */
638 case DW_TAG_type_unit: return "DW_TAG_type_unit";
639 case DW_TAG_rvalue_reference_type: return "DW_TAG_rvalue_reference_type";
640 case DW_TAG_template_alias: return "DW_TAG_template_alias";
641 /* UPC values. */
642 case DW_TAG_upc_shared_type: return "DW_TAG_upc_shared_type";
643 case DW_TAG_upc_strict_type: return "DW_TAG_upc_strict_type";
644 case DW_TAG_upc_relaxed_type: return "DW_TAG_upc_relaxed_type";
645 default:
647 static char buffer[100];
649 snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag);
650 return buffer;
655 static char *
656 get_FORM_name (unsigned long form)
658 switch (form)
660 case DW_FORM_addr: return "DW_FORM_addr";
661 case DW_FORM_block2: return "DW_FORM_block2";
662 case DW_FORM_block4: return "DW_FORM_block4";
663 case DW_FORM_data2: return "DW_FORM_data2";
664 case DW_FORM_data4: return "DW_FORM_data4";
665 case DW_FORM_data8: return "DW_FORM_data8";
666 case DW_FORM_string: return "DW_FORM_string";
667 case DW_FORM_block: return "DW_FORM_block";
668 case DW_FORM_block1: return "DW_FORM_block1";
669 case DW_FORM_data1: return "DW_FORM_data1";
670 case DW_FORM_flag: return "DW_FORM_flag";
671 case DW_FORM_sdata: return "DW_FORM_sdata";
672 case DW_FORM_strp: return "DW_FORM_strp";
673 case DW_FORM_udata: return "DW_FORM_udata";
674 case DW_FORM_ref_addr: return "DW_FORM_ref_addr";
675 case DW_FORM_ref1: return "DW_FORM_ref1";
676 case DW_FORM_ref2: return "DW_FORM_ref2";
677 case DW_FORM_ref4: return "DW_FORM_ref4";
678 case DW_FORM_ref8: return "DW_FORM_ref8";
679 case DW_FORM_ref_udata: return "DW_FORM_ref_udata";
680 case DW_FORM_indirect: return "DW_FORM_indirect";
681 /* DWARF 4 values. */
682 case DW_FORM_sec_offset: return "DW_FORM_sec_offset";
683 case DW_FORM_exprloc: return "DW_FORM_exprloc";
684 case DW_FORM_flag_present: return "DW_FORM_flag_present";
685 case DW_FORM_ref_sig8: return "DW_FORM_ref_sig8";
686 default:
688 static char buffer[100];
690 snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form);
691 return buffer;
696 static unsigned char *
697 display_block (unsigned char *data, unsigned long length)
699 printf (_(" %lu byte block: "), length);
701 while (length --)
702 printf ("%lx ", (unsigned long) byte_get (data++, 1));
704 return data;
707 static int
708 decode_location_expression (unsigned char * data,
709 unsigned int pointer_size,
710 unsigned long length,
711 unsigned long cu_offset,
712 struct dwarf_section * section)
714 unsigned op;
715 unsigned int bytes_read;
716 unsigned long uvalue;
717 unsigned char *end = data + length;
718 int need_frame_base = 0;
720 while (data < end)
722 op = *data++;
724 switch (op)
726 case DW_OP_addr:
727 printf ("DW_OP_addr: %lx",
728 (unsigned long) byte_get (data, pointer_size));
729 data += pointer_size;
730 break;
731 case DW_OP_deref:
732 printf ("DW_OP_deref");
733 break;
734 case DW_OP_const1u:
735 printf ("DW_OP_const1u: %lu", (unsigned long) byte_get (data++, 1));
736 break;
737 case DW_OP_const1s:
738 printf ("DW_OP_const1s: %ld", (long) byte_get_signed (data++, 1));
739 break;
740 case DW_OP_const2u:
741 printf ("DW_OP_const2u: %lu", (unsigned long) byte_get (data, 2));
742 data += 2;
743 break;
744 case DW_OP_const2s:
745 printf ("DW_OP_const2s: %ld", (long) byte_get_signed (data, 2));
746 data += 2;
747 break;
748 case DW_OP_const4u:
749 printf ("DW_OP_const4u: %lu", (unsigned long) byte_get (data, 4));
750 data += 4;
751 break;
752 case DW_OP_const4s:
753 printf ("DW_OP_const4s: %ld", (long) byte_get_signed (data, 4));
754 data += 4;
755 break;
756 case DW_OP_const8u:
757 printf ("DW_OP_const8u: %lu %lu", (unsigned long) byte_get (data, 4),
758 (unsigned long) byte_get (data + 4, 4));
759 data += 8;
760 break;
761 case DW_OP_const8s:
762 printf ("DW_OP_const8s: %ld %ld", (long) byte_get (data, 4),
763 (long) byte_get (data + 4, 4));
764 data += 8;
765 break;
766 case DW_OP_constu:
767 printf ("DW_OP_constu: %lu", read_leb128 (data, &bytes_read, 0));
768 data += bytes_read;
769 break;
770 case DW_OP_consts:
771 printf ("DW_OP_consts: %ld", read_leb128 (data, &bytes_read, 1));
772 data += bytes_read;
773 break;
774 case DW_OP_dup:
775 printf ("DW_OP_dup");
776 break;
777 case DW_OP_drop:
778 printf ("DW_OP_drop");
779 break;
780 case DW_OP_over:
781 printf ("DW_OP_over");
782 break;
783 case DW_OP_pick:
784 printf ("DW_OP_pick: %ld", (unsigned long) byte_get (data++, 1));
785 break;
786 case DW_OP_swap:
787 printf ("DW_OP_swap");
788 break;
789 case DW_OP_rot:
790 printf ("DW_OP_rot");
791 break;
792 case DW_OP_xderef:
793 printf ("DW_OP_xderef");
794 break;
795 case DW_OP_abs:
796 printf ("DW_OP_abs");
797 break;
798 case DW_OP_and:
799 printf ("DW_OP_and");
800 break;
801 case DW_OP_div:
802 printf ("DW_OP_div");
803 break;
804 case DW_OP_minus:
805 printf ("DW_OP_minus");
806 break;
807 case DW_OP_mod:
808 printf ("DW_OP_mod");
809 break;
810 case DW_OP_mul:
811 printf ("DW_OP_mul");
812 break;
813 case DW_OP_neg:
814 printf ("DW_OP_neg");
815 break;
816 case DW_OP_not:
817 printf ("DW_OP_not");
818 break;
819 case DW_OP_or:
820 printf ("DW_OP_or");
821 break;
822 case DW_OP_plus:
823 printf ("DW_OP_plus");
824 break;
825 case DW_OP_plus_uconst:
826 printf ("DW_OP_plus_uconst: %lu",
827 read_leb128 (data, &bytes_read, 0));
828 data += bytes_read;
829 break;
830 case DW_OP_shl:
831 printf ("DW_OP_shl");
832 break;
833 case DW_OP_shr:
834 printf ("DW_OP_shr");
835 break;
836 case DW_OP_shra:
837 printf ("DW_OP_shra");
838 break;
839 case DW_OP_xor:
840 printf ("DW_OP_xor");
841 break;
842 case DW_OP_bra:
843 printf ("DW_OP_bra: %ld", (long) byte_get_signed (data, 2));
844 data += 2;
845 break;
846 case DW_OP_eq:
847 printf ("DW_OP_eq");
848 break;
849 case DW_OP_ge:
850 printf ("DW_OP_ge");
851 break;
852 case DW_OP_gt:
853 printf ("DW_OP_gt");
854 break;
855 case DW_OP_le:
856 printf ("DW_OP_le");
857 break;
858 case DW_OP_lt:
859 printf ("DW_OP_lt");
860 break;
861 case DW_OP_ne:
862 printf ("DW_OP_ne");
863 break;
864 case DW_OP_skip:
865 printf ("DW_OP_skip: %ld", (long) byte_get_signed (data, 2));
866 data += 2;
867 break;
869 case DW_OP_lit0:
870 case DW_OP_lit1:
871 case DW_OP_lit2:
872 case DW_OP_lit3:
873 case DW_OP_lit4:
874 case DW_OP_lit5:
875 case DW_OP_lit6:
876 case DW_OP_lit7:
877 case DW_OP_lit8:
878 case DW_OP_lit9:
879 case DW_OP_lit10:
880 case DW_OP_lit11:
881 case DW_OP_lit12:
882 case DW_OP_lit13:
883 case DW_OP_lit14:
884 case DW_OP_lit15:
885 case DW_OP_lit16:
886 case DW_OP_lit17:
887 case DW_OP_lit18:
888 case DW_OP_lit19:
889 case DW_OP_lit20:
890 case DW_OP_lit21:
891 case DW_OP_lit22:
892 case DW_OP_lit23:
893 case DW_OP_lit24:
894 case DW_OP_lit25:
895 case DW_OP_lit26:
896 case DW_OP_lit27:
897 case DW_OP_lit28:
898 case DW_OP_lit29:
899 case DW_OP_lit30:
900 case DW_OP_lit31:
901 printf ("DW_OP_lit%d", op - DW_OP_lit0);
902 break;
904 case DW_OP_reg0:
905 case DW_OP_reg1:
906 case DW_OP_reg2:
907 case DW_OP_reg3:
908 case DW_OP_reg4:
909 case DW_OP_reg5:
910 case DW_OP_reg6:
911 case DW_OP_reg7:
912 case DW_OP_reg8:
913 case DW_OP_reg9:
914 case DW_OP_reg10:
915 case DW_OP_reg11:
916 case DW_OP_reg12:
917 case DW_OP_reg13:
918 case DW_OP_reg14:
919 case DW_OP_reg15:
920 case DW_OP_reg16:
921 case DW_OP_reg17:
922 case DW_OP_reg18:
923 case DW_OP_reg19:
924 case DW_OP_reg20:
925 case DW_OP_reg21:
926 case DW_OP_reg22:
927 case DW_OP_reg23:
928 case DW_OP_reg24:
929 case DW_OP_reg25:
930 case DW_OP_reg26:
931 case DW_OP_reg27:
932 case DW_OP_reg28:
933 case DW_OP_reg29:
934 case DW_OP_reg30:
935 case DW_OP_reg31:
936 printf ("DW_OP_reg%d", op - DW_OP_reg0);
937 break;
939 case DW_OP_breg0:
940 case DW_OP_breg1:
941 case DW_OP_breg2:
942 case DW_OP_breg3:
943 case DW_OP_breg4:
944 case DW_OP_breg5:
945 case DW_OP_breg6:
946 case DW_OP_breg7:
947 case DW_OP_breg8:
948 case DW_OP_breg9:
949 case DW_OP_breg10:
950 case DW_OP_breg11:
951 case DW_OP_breg12:
952 case DW_OP_breg13:
953 case DW_OP_breg14:
954 case DW_OP_breg15:
955 case DW_OP_breg16:
956 case DW_OP_breg17:
957 case DW_OP_breg18:
958 case DW_OP_breg19:
959 case DW_OP_breg20:
960 case DW_OP_breg21:
961 case DW_OP_breg22:
962 case DW_OP_breg23:
963 case DW_OP_breg24:
964 case DW_OP_breg25:
965 case DW_OP_breg26:
966 case DW_OP_breg27:
967 case DW_OP_breg28:
968 case DW_OP_breg29:
969 case DW_OP_breg30:
970 case DW_OP_breg31:
971 printf ("DW_OP_breg%d: %ld", op - DW_OP_breg0,
972 read_leb128 (data, &bytes_read, 1));
973 data += bytes_read;
974 break;
976 case DW_OP_regx:
977 printf ("DW_OP_regx: %lu", read_leb128 (data, &bytes_read, 0));
978 data += bytes_read;
979 break;
980 case DW_OP_fbreg:
981 need_frame_base = 1;
982 printf ("DW_OP_fbreg: %ld", read_leb128 (data, &bytes_read, 1));
983 data += bytes_read;
984 break;
985 case DW_OP_bregx:
986 uvalue = read_leb128 (data, &bytes_read, 0);
987 data += bytes_read;
988 printf ("DW_OP_bregx: %lu %ld", uvalue,
989 read_leb128 (data, &bytes_read, 1));
990 data += bytes_read;
991 break;
992 case DW_OP_piece:
993 printf ("DW_OP_piece: %lu", read_leb128 (data, &bytes_read, 0));
994 data += bytes_read;
995 break;
996 case DW_OP_deref_size:
997 printf ("DW_OP_deref_size: %ld", (long) byte_get (data++, 1));
998 break;
999 case DW_OP_xderef_size:
1000 printf ("DW_OP_xderef_size: %ld", (long) byte_get (data++, 1));
1001 break;
1002 case DW_OP_nop:
1003 printf ("DW_OP_nop");
1004 break;
1006 /* DWARF 3 extensions. */
1007 case DW_OP_push_object_address:
1008 printf ("DW_OP_push_object_address");
1009 break;
1010 case DW_OP_call2:
1011 /* XXX: Strictly speaking for 64-bit DWARF3 files
1012 this ought to be an 8-byte wide computation. */
1013 printf ("DW_OP_call2: <%lx>", (long) byte_get (data, 2) + cu_offset);
1014 data += 2;
1015 break;
1016 case DW_OP_call4:
1017 /* XXX: Strictly speaking for 64-bit DWARF3 files
1018 this ought to be an 8-byte wide computation. */
1019 printf ("DW_OP_call4: <%lx>", (long) byte_get (data, 4) + cu_offset);
1020 data += 4;
1021 break;
1022 case DW_OP_call_ref:
1023 /* XXX: Strictly speaking for 64-bit DWARF3 files
1024 this ought to be an 8-byte wide computation. */
1025 printf ("DW_OP_call_ref: <%lx>", (long) byte_get (data, 4) + cu_offset);
1026 data += 4;
1027 break;
1028 case DW_OP_form_tls_address:
1029 printf ("DW_OP_form_tls_address");
1030 break;
1031 case DW_OP_call_frame_cfa:
1032 printf ("DW_OP_call_frame_cfa");
1033 break;
1034 case DW_OP_bit_piece:
1035 printf ("DW_OP_bit_piece: ");
1036 printf ("size: %lu ", read_leb128 (data, &bytes_read, 0));
1037 data += bytes_read;
1038 printf ("offset: %lu ", read_leb128 (data, &bytes_read, 0));
1039 data += bytes_read;
1040 break;
1042 /* DWARF 4 extensions. */
1043 case DW_OP_stack_value:
1044 printf ("DW_OP_stack_value");
1045 break;
1047 case DW_OP_implicit_value:
1048 printf ("DW_OP_implicit_value");
1049 uvalue = read_leb128 (data, &bytes_read, 0);
1050 data += bytes_read;
1051 display_block (data, uvalue);
1052 data += uvalue;
1053 break;
1055 /* GNU extensions. */
1056 case DW_OP_GNU_push_tls_address:
1057 printf ("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown");
1058 break;
1059 case DW_OP_GNU_uninit:
1060 printf ("DW_OP_GNU_uninit");
1061 /* FIXME: Is there data associated with this OP ? */
1062 break;
1063 case DW_OP_GNU_encoded_addr:
1065 int encoding;
1066 dwarf_vma addr;
1068 encoding = *data++;
1069 addr = get_encoded_value (data, encoding);
1070 if ((encoding & 0x70) == DW_EH_PE_pcrel)
1071 addr += section->address + (data - section->start);
1072 data += size_of_encoded_value (encoding);
1074 printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding);
1075 print_dwarf_vma (addr, pointer_size);
1077 break;
1079 /* HP extensions. */
1080 case DW_OP_HP_is_value:
1081 printf ("DW_OP_HP_is_value");
1082 /* FIXME: Is there data associated with this OP ? */
1083 break;
1084 case DW_OP_HP_fltconst4:
1085 printf ("DW_OP_HP_fltconst4");
1086 /* FIXME: Is there data associated with this OP ? */
1087 break;
1088 case DW_OP_HP_fltconst8:
1089 printf ("DW_OP_HP_fltconst8");
1090 /* FIXME: Is there data associated with this OP ? */
1091 break;
1092 case DW_OP_HP_mod_range:
1093 printf ("DW_OP_HP_mod_range");
1094 /* FIXME: Is there data associated with this OP ? */
1095 break;
1096 case DW_OP_HP_unmod_range:
1097 printf ("DW_OP_HP_unmod_range");
1098 /* FIXME: Is there data associated with this OP ? */
1099 break;
1100 case DW_OP_HP_tls:
1101 printf ("DW_OP_HP_tls");
1102 /* FIXME: Is there data associated with this OP ? */
1103 break;
1105 /* PGI (STMicroelectronics) extensions. */
1106 case DW_OP_PGI_omp_thread_num:
1107 /* Pushes the thread number for the current thread as it would be
1108 returned by the standard OpenMP library function:
1109 omp_get_thread_num(). The "current thread" is the thread for
1110 which the expression is being evaluated. */
1111 printf ("DW_OP_PGI_omp_thread_num");
1112 break;
1114 default:
1115 if (op >= DW_OP_lo_user
1116 && op <= DW_OP_hi_user)
1117 printf (_("(User defined location op)"));
1118 else
1119 printf (_("(Unknown location op)"));
1120 /* No way to tell where the next op is, so just bail. */
1121 return need_frame_base;
1124 /* Separate the ops. */
1125 if (data < end)
1126 printf ("; ");
1129 return need_frame_base;
1132 static unsigned char *
1133 read_and_display_attr_value (unsigned long attribute,
1134 unsigned long form,
1135 unsigned char * data,
1136 unsigned long cu_offset,
1137 unsigned long pointer_size,
1138 unsigned long offset_size,
1139 int dwarf_version,
1140 debug_info * debug_info_p,
1141 int do_loc,
1142 struct dwarf_section * section)
1144 unsigned long uvalue = 0;
1145 unsigned char *block_start = NULL;
1146 unsigned char * orig_data = data;
1147 unsigned int bytes_read;
1149 switch (form)
1151 default:
1152 break;
1154 case DW_FORM_ref_addr:
1155 if (dwarf_version == 2)
1157 uvalue = byte_get (data, pointer_size);
1158 data += pointer_size;
1160 else if (dwarf_version == 3 || dwarf_version == 4)
1162 uvalue = byte_get (data, offset_size);
1163 data += offset_size;
1165 else
1167 error (_("Internal error: DWARF version is not 2, 3 or 4.\n"));
1169 break;
1171 case DW_FORM_addr:
1172 uvalue = byte_get (data, pointer_size);
1173 data += pointer_size;
1174 break;
1176 case DW_FORM_strp:
1177 case DW_FORM_sec_offset:
1178 uvalue = byte_get (data, offset_size);
1179 data += offset_size;
1180 break;
1182 case DW_FORM_flag_present:
1183 uvalue = 1;
1184 break;
1186 case DW_FORM_ref1:
1187 case DW_FORM_flag:
1188 case DW_FORM_data1:
1189 uvalue = byte_get (data++, 1);
1190 break;
1192 case DW_FORM_ref2:
1193 case DW_FORM_data2:
1194 uvalue = byte_get (data, 2);
1195 data += 2;
1196 break;
1198 case DW_FORM_ref4:
1199 case DW_FORM_data4:
1200 uvalue = byte_get (data, 4);
1201 data += 4;
1202 break;
1204 case DW_FORM_sdata:
1205 uvalue = read_leb128 (data, & bytes_read, 1);
1206 data += bytes_read;
1207 break;
1209 case DW_FORM_ref_udata:
1210 case DW_FORM_udata:
1211 uvalue = read_leb128 (data, & bytes_read, 0);
1212 data += bytes_read;
1213 break;
1215 case DW_FORM_indirect:
1216 form = read_leb128 (data, & bytes_read, 0);
1217 data += bytes_read;
1218 if (!do_loc)
1219 printf (" %s", get_FORM_name (form));
1220 return read_and_display_attr_value (attribute, form, data,
1221 cu_offset, pointer_size,
1222 offset_size, dwarf_version,
1223 debug_info_p, do_loc,
1224 section);
1227 switch (form)
1229 case DW_FORM_ref_addr:
1230 if (!do_loc)
1231 printf (" <0x%lx>", uvalue);
1232 break;
1234 case DW_FORM_ref1:
1235 case DW_FORM_ref2:
1236 case DW_FORM_ref4:
1237 case DW_FORM_ref_udata:
1238 if (!do_loc)
1239 printf (" <0x%lx>", uvalue + cu_offset);
1240 break;
1242 case DW_FORM_data4:
1243 case DW_FORM_addr:
1244 case DW_FORM_sec_offset:
1245 if (!do_loc)
1246 printf (" 0x%lx", uvalue);
1247 break;
1249 case DW_FORM_flag_present:
1250 case DW_FORM_flag:
1251 case DW_FORM_data1:
1252 case DW_FORM_data2:
1253 case DW_FORM_sdata:
1254 case DW_FORM_udata:
1255 if (!do_loc)
1256 printf (" %ld", uvalue);
1257 break;
1259 case DW_FORM_ref8:
1260 case DW_FORM_data8:
1261 if (!do_loc)
1263 uvalue = byte_get (data, 4);
1264 printf (" 0x%lx", uvalue);
1265 printf (" 0x%lx", (unsigned long) byte_get (data + 4, 4));
1267 if ((do_loc || do_debug_loc || do_debug_ranges)
1268 && num_debug_info_entries == 0)
1270 if (sizeof (uvalue) == 8)
1271 uvalue = byte_get (data, 8);
1272 else
1273 error (_("DW_FORM_data8 is unsupported when sizeof (unsigned long) != 8\n"));
1275 data += 8;
1276 break;
1278 case DW_FORM_string:
1279 if (!do_loc)
1280 printf (" %s", data);
1281 data += strlen ((char *) data) + 1;
1282 break;
1284 case DW_FORM_block:
1285 case DW_FORM_exprloc:
1286 uvalue = read_leb128 (data, & bytes_read, 0);
1287 block_start = data + bytes_read;
1288 if (do_loc)
1289 data = block_start + uvalue;
1290 else
1291 data = display_block (block_start, uvalue);
1292 break;
1294 case DW_FORM_block1:
1295 uvalue = byte_get (data, 1);
1296 block_start = data + 1;
1297 if (do_loc)
1298 data = block_start + uvalue;
1299 else
1300 data = display_block (block_start, uvalue);
1301 break;
1303 case DW_FORM_block2:
1304 uvalue = byte_get (data, 2);
1305 block_start = data + 2;
1306 if (do_loc)
1307 data = block_start + uvalue;
1308 else
1309 data = display_block (block_start, uvalue);
1310 break;
1312 case DW_FORM_block4:
1313 uvalue = byte_get (data, 4);
1314 block_start = data + 4;
1315 if (do_loc)
1316 data = block_start + uvalue;
1317 else
1318 data = display_block (block_start, uvalue);
1319 break;
1321 case DW_FORM_strp:
1322 if (!do_loc)
1323 printf (_(" (indirect string, offset: 0x%lx): %s"),
1324 uvalue, fetch_indirect_string (uvalue));
1325 break;
1327 case DW_FORM_indirect:
1328 /* Handled above. */
1329 break;
1331 case DW_FORM_ref_sig8:
1332 if (!do_loc)
1334 int i;
1335 printf (" signature: ");
1336 for (i = 0; i < 8; i++)
1338 printf ("%02x", (unsigned) byte_get (data, 1));
1339 data += 1;
1342 else
1343 data += 8;
1344 break;
1346 default:
1347 warn (_("Unrecognized form: %lu\n"), form);
1348 break;
1351 if ((do_loc || do_debug_loc || do_debug_ranges)
1352 && num_debug_info_entries == 0)
1354 switch (attribute)
1356 case DW_AT_frame_base:
1357 have_frame_base = 1;
1358 case DW_AT_location:
1359 case DW_AT_string_length:
1360 case DW_AT_return_addr:
1361 case DW_AT_data_member_location:
1362 case DW_AT_vtable_elem_location:
1363 case DW_AT_segment:
1364 case DW_AT_static_link:
1365 case DW_AT_use_location:
1366 if (form == DW_FORM_data4
1367 || form == DW_FORM_data8
1368 || form == DW_FORM_sec_offset)
1370 /* Process location list. */
1371 unsigned int lmax = debug_info_p->max_loc_offsets;
1372 unsigned int num = debug_info_p->num_loc_offsets;
1374 if (lmax == 0 || num >= lmax)
1376 lmax += 1024;
1377 debug_info_p->loc_offsets = (long unsigned int *)
1378 xcrealloc (debug_info_p->loc_offsets,
1379 lmax, sizeof (*debug_info_p->loc_offsets));
1380 debug_info_p->have_frame_base = (int *)
1381 xcrealloc (debug_info_p->have_frame_base,
1382 lmax, sizeof (*debug_info_p->have_frame_base));
1383 debug_info_p->max_loc_offsets = lmax;
1385 debug_info_p->loc_offsets [num] = uvalue;
1386 debug_info_p->have_frame_base [num] = have_frame_base;
1387 debug_info_p->num_loc_offsets++;
1389 break;
1391 case DW_AT_low_pc:
1392 if (need_base_address)
1393 debug_info_p->base_address = uvalue;
1394 break;
1396 case DW_AT_ranges:
1397 if (form == DW_FORM_data4
1398 || form == DW_FORM_data8
1399 || form == DW_FORM_sec_offset)
1401 /* Process range list. */
1402 unsigned int lmax = debug_info_p->max_range_lists;
1403 unsigned int num = debug_info_p->num_range_lists;
1405 if (lmax == 0 || num >= lmax)
1407 lmax += 1024;
1408 debug_info_p->range_lists = (long unsigned int *)
1409 xcrealloc (debug_info_p->range_lists,
1410 lmax, sizeof (*debug_info_p->range_lists));
1411 debug_info_p->max_range_lists = lmax;
1413 debug_info_p->range_lists [num] = uvalue;
1414 debug_info_p->num_range_lists++;
1416 break;
1418 default:
1419 break;
1423 if (do_loc)
1424 return data;
1426 /* For some attributes we can display further information. */
1427 printf ("\t");
1429 switch (attribute)
1431 case DW_AT_inline:
1432 switch (uvalue)
1434 case DW_INL_not_inlined:
1435 printf (_("(not inlined)"));
1436 break;
1437 case DW_INL_inlined:
1438 printf (_("(inlined)"));
1439 break;
1440 case DW_INL_declared_not_inlined:
1441 printf (_("(declared as inline but ignored)"));
1442 break;
1443 case DW_INL_declared_inlined:
1444 printf (_("(declared as inline and inlined)"));
1445 break;
1446 default:
1447 printf (_(" (Unknown inline attribute value: %lx)"), uvalue);
1448 break;
1450 break;
1452 case DW_AT_language:
1453 switch (uvalue)
1455 /* Ordered by the numeric value of these constants. */
1456 case DW_LANG_C89: printf ("(ANSI C)"); break;
1457 case DW_LANG_C: printf ("(non-ANSI C)"); break;
1458 case DW_LANG_Ada83: printf ("(Ada)"); break;
1459 case DW_LANG_C_plus_plus: printf ("(C++)"); break;
1460 case DW_LANG_Cobol74: printf ("(Cobol 74)"); break;
1461 case DW_LANG_Cobol85: printf ("(Cobol 85)"); break;
1462 case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break;
1463 case DW_LANG_Fortran90: printf ("(Fortran 90)"); break;
1464 case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break;
1465 case DW_LANG_Modula2: printf ("(Modula 2)"); break;
1466 /* DWARF 2.1 values. */
1467 case DW_LANG_Java: printf ("(Java)"); break;
1468 case DW_LANG_C99: printf ("(ANSI C99)"); break;
1469 case DW_LANG_Ada95: printf ("(ADA 95)"); break;
1470 case DW_LANG_Fortran95: printf ("(Fortran 95)"); break;
1471 /* DWARF 3 values. */
1472 case DW_LANG_PLI: printf ("(PLI)"); break;
1473 case DW_LANG_ObjC: printf ("(Objective C)"); break;
1474 case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break;
1475 case DW_LANG_UPC: printf ("(Unified Parallel C)"); break;
1476 case DW_LANG_D: printf ("(D)"); break;
1477 /* DWARF 4 values. */
1478 case DW_LANG_Python: printf ("(Python)"); break;
1479 /* MIPS extension. */
1480 case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break;
1481 /* UPC extension. */
1482 case DW_LANG_Upc: printf ("(Unified Parallel C)"); break;
1483 default:
1484 if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user)
1485 printf ("(implementation defined: %lx)", uvalue);
1486 else
1487 printf ("(Unknown: %lx)", uvalue);
1488 break;
1490 break;
1492 case DW_AT_encoding:
1493 switch (uvalue)
1495 case DW_ATE_void: printf ("(void)"); break;
1496 case DW_ATE_address: printf ("(machine address)"); break;
1497 case DW_ATE_boolean: printf ("(boolean)"); break;
1498 case DW_ATE_complex_float: printf ("(complex float)"); break;
1499 case DW_ATE_float: printf ("(float)"); break;
1500 case DW_ATE_signed: printf ("(signed)"); break;
1501 case DW_ATE_signed_char: printf ("(signed char)"); break;
1502 case DW_ATE_unsigned: printf ("(unsigned)"); break;
1503 case DW_ATE_unsigned_char: printf ("(unsigned char)"); break;
1504 /* DWARF 2.1 values: */
1505 case DW_ATE_imaginary_float: printf ("(imaginary float)"); break;
1506 case DW_ATE_decimal_float: printf ("(decimal float)"); break;
1507 /* DWARF 3 values: */
1508 case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break;
1509 case DW_ATE_numeric_string: printf ("(numeric_string)"); break;
1510 case DW_ATE_edited: printf ("(edited)"); break;
1511 case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break;
1512 case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break;
1513 /* HP extensions: */
1514 case DW_ATE_HP_float80: printf ("(HP_float80)"); break;
1515 case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break;
1516 case DW_ATE_HP_float128: printf ("(HP_float128)"); break;
1517 case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break;
1518 case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break;
1519 case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break;
1520 case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break;
1522 default:
1523 if (uvalue >= DW_ATE_lo_user
1524 && uvalue <= DW_ATE_hi_user)
1525 printf ("(user defined type)");
1526 else
1527 printf ("(unknown type)");
1528 break;
1530 break;
1532 case DW_AT_accessibility:
1533 switch (uvalue)
1535 case DW_ACCESS_public: printf ("(public)"); break;
1536 case DW_ACCESS_protected: printf ("(protected)"); break;
1537 case DW_ACCESS_private: printf ("(private)"); break;
1538 default:
1539 printf ("(unknown accessibility)");
1540 break;
1542 break;
1544 case DW_AT_visibility:
1545 switch (uvalue)
1547 case DW_VIS_local: printf ("(local)"); break;
1548 case DW_VIS_exported: printf ("(exported)"); break;
1549 case DW_VIS_qualified: printf ("(qualified)"); break;
1550 default: printf ("(unknown visibility)"); break;
1552 break;
1554 case DW_AT_virtuality:
1555 switch (uvalue)
1557 case DW_VIRTUALITY_none: printf ("(none)"); break;
1558 case DW_VIRTUALITY_virtual: printf ("(virtual)"); break;
1559 case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break;
1560 default: printf ("(unknown virtuality)"); break;
1562 break;
1564 case DW_AT_identifier_case:
1565 switch (uvalue)
1567 case DW_ID_case_sensitive: printf ("(case_sensitive)"); break;
1568 case DW_ID_up_case: printf ("(up_case)"); break;
1569 case DW_ID_down_case: printf ("(down_case)"); break;
1570 case DW_ID_case_insensitive: printf ("(case_insensitive)"); break;
1571 default: printf ("(unknown case)"); break;
1573 break;
1575 case DW_AT_calling_convention:
1576 switch (uvalue)
1578 case DW_CC_normal: printf ("(normal)"); break;
1579 case DW_CC_program: printf ("(program)"); break;
1580 case DW_CC_nocall: printf ("(nocall)"); break;
1581 default:
1582 if (uvalue >= DW_CC_lo_user
1583 && uvalue <= DW_CC_hi_user)
1584 printf ("(user defined)");
1585 else
1586 printf ("(unknown convention)");
1588 break;
1590 case DW_AT_ordering:
1591 switch (uvalue)
1593 case -1: printf ("(undefined)"); break;
1594 case 0: printf ("(row major)"); break;
1595 case 1: printf ("(column major)"); break;
1597 break;
1599 case DW_AT_frame_base:
1600 have_frame_base = 1;
1601 case DW_AT_location:
1602 case DW_AT_string_length:
1603 case DW_AT_return_addr:
1604 case DW_AT_data_member_location:
1605 case DW_AT_vtable_elem_location:
1606 case DW_AT_segment:
1607 case DW_AT_static_link:
1608 case DW_AT_use_location:
1609 if (form == DW_FORM_data4
1610 || form == DW_FORM_data8
1611 || form == DW_FORM_sec_offset)
1612 printf (_("(location list)"));
1613 /* Fall through. */
1614 case DW_AT_allocated:
1615 case DW_AT_associated:
1616 case DW_AT_data_location:
1617 case DW_AT_stride:
1618 case DW_AT_upper_bound:
1619 case DW_AT_lower_bound:
1620 if (block_start)
1622 int need_frame_base;
1624 printf ("(");
1625 need_frame_base = decode_location_expression (block_start,
1626 pointer_size,
1627 uvalue,
1628 cu_offset, section);
1629 printf (")");
1630 if (need_frame_base && !have_frame_base)
1631 printf (_(" [without DW_AT_frame_base]"));
1633 break;
1635 case DW_AT_import:
1637 if (form == DW_FORM_ref_sig8)
1638 break;
1640 if (form == DW_FORM_ref1
1641 || form == DW_FORM_ref2
1642 || form == DW_FORM_ref4)
1643 uvalue += cu_offset;
1645 if (uvalue >= section->size)
1646 warn (_("Offset %lx used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"),
1647 uvalue, (unsigned long) (orig_data - section->start));
1648 else
1650 unsigned long abbrev_number;
1651 abbrev_entry * entry;
1653 abbrev_number = read_leb128 (section->start + uvalue, NULL, 0);
1655 printf ("[Abbrev Number: %ld", abbrev_number);
1656 for (entry = first_abbrev; entry != NULL; entry = entry->next)
1657 if (entry->entry == abbrev_number)
1658 break;
1659 if (entry != NULL)
1660 printf (" (%s)", get_TAG_name (entry->tag));
1661 printf ("]");
1664 break;
1666 default:
1667 break;
1670 return data;
1673 static char *
1674 get_AT_name (unsigned long attribute)
1676 switch (attribute)
1678 case DW_AT_sibling: return "DW_AT_sibling";
1679 case DW_AT_location: return "DW_AT_location";
1680 case DW_AT_name: return "DW_AT_name";
1681 case DW_AT_ordering: return "DW_AT_ordering";
1682 case DW_AT_subscr_data: return "DW_AT_subscr_data";
1683 case DW_AT_byte_size: return "DW_AT_byte_size";
1684 case DW_AT_bit_offset: return "DW_AT_bit_offset";
1685 case DW_AT_bit_size: return "DW_AT_bit_size";
1686 case DW_AT_element_list: return "DW_AT_element_list";
1687 case DW_AT_stmt_list: return "DW_AT_stmt_list";
1688 case DW_AT_low_pc: return "DW_AT_low_pc";
1689 case DW_AT_high_pc: return "DW_AT_high_pc";
1690 case DW_AT_language: return "DW_AT_language";
1691 case DW_AT_member: return "DW_AT_member";
1692 case DW_AT_discr: return "DW_AT_discr";
1693 case DW_AT_discr_value: return "DW_AT_discr_value";
1694 case DW_AT_visibility: return "DW_AT_visibility";
1695 case DW_AT_import: return "DW_AT_import";
1696 case DW_AT_string_length: return "DW_AT_string_length";
1697 case DW_AT_common_reference: return "DW_AT_common_reference";
1698 case DW_AT_comp_dir: return "DW_AT_comp_dir";
1699 case DW_AT_const_value: return "DW_AT_const_value";
1700 case DW_AT_containing_type: return "DW_AT_containing_type";
1701 case DW_AT_default_value: return "DW_AT_default_value";
1702 case DW_AT_inline: return "DW_AT_inline";
1703 case DW_AT_is_optional: return "DW_AT_is_optional";
1704 case DW_AT_lower_bound: return "DW_AT_lower_bound";
1705 case DW_AT_producer: return "DW_AT_producer";
1706 case DW_AT_prototyped: return "DW_AT_prototyped";
1707 case DW_AT_return_addr: return "DW_AT_return_addr";
1708 case DW_AT_start_scope: return "DW_AT_start_scope";
1709 case DW_AT_stride_size: return "DW_AT_stride_size";
1710 case DW_AT_upper_bound: return "DW_AT_upper_bound";
1711 case DW_AT_abstract_origin: return "DW_AT_abstract_origin";
1712 case DW_AT_accessibility: return "DW_AT_accessibility";
1713 case DW_AT_address_class: return "DW_AT_address_class";
1714 case DW_AT_artificial: return "DW_AT_artificial";
1715 case DW_AT_base_types: return "DW_AT_base_types";
1716 case DW_AT_calling_convention: return "DW_AT_calling_convention";
1717 case DW_AT_count: return "DW_AT_count";
1718 case DW_AT_data_member_location: return "DW_AT_data_member_location";
1719 case DW_AT_decl_column: return "DW_AT_decl_column";
1720 case DW_AT_decl_file: return "DW_AT_decl_file";
1721 case DW_AT_decl_line: return "DW_AT_decl_line";
1722 case DW_AT_declaration: return "DW_AT_declaration";
1723 case DW_AT_discr_list: return "DW_AT_discr_list";
1724 case DW_AT_encoding: return "DW_AT_encoding";
1725 case DW_AT_external: return "DW_AT_external";
1726 case DW_AT_frame_base: return "DW_AT_frame_base";
1727 case DW_AT_friend: return "DW_AT_friend";
1728 case DW_AT_identifier_case: return "DW_AT_identifier_case";
1729 case DW_AT_macro_info: return "DW_AT_macro_info";
1730 case DW_AT_namelist_items: return "DW_AT_namelist_items";
1731 case DW_AT_priority: return "DW_AT_priority";
1732 case DW_AT_segment: return "DW_AT_segment";
1733 case DW_AT_specification: return "DW_AT_specification";
1734 case DW_AT_static_link: return "DW_AT_static_link";
1735 case DW_AT_type: return "DW_AT_type";
1736 case DW_AT_use_location: return "DW_AT_use_location";
1737 case DW_AT_variable_parameter: return "DW_AT_variable_parameter";
1738 case DW_AT_virtuality: return "DW_AT_virtuality";
1739 case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location";
1740 /* DWARF 2.1 values. */
1741 case DW_AT_allocated: return "DW_AT_allocated";
1742 case DW_AT_associated: return "DW_AT_associated";
1743 case DW_AT_data_location: return "DW_AT_data_location";
1744 case DW_AT_stride: return "DW_AT_stride";
1745 case DW_AT_entry_pc: return "DW_AT_entry_pc";
1746 case DW_AT_use_UTF8: return "DW_AT_use_UTF8";
1747 case DW_AT_extension: return "DW_AT_extension";
1748 case DW_AT_ranges: return "DW_AT_ranges";
1749 case DW_AT_trampoline: return "DW_AT_trampoline";
1750 case DW_AT_call_column: return "DW_AT_call_column";
1751 case DW_AT_call_file: return "DW_AT_call_file";
1752 case DW_AT_call_line: return "DW_AT_call_line";
1753 case DW_AT_description: return "DW_AT_description";
1754 case DW_AT_binary_scale: return "DW_AT_binary_scale";
1755 case DW_AT_decimal_scale: return "DW_AT_decimal_scale";
1756 case DW_AT_small: return "DW_AT_small";
1757 case DW_AT_decimal_sign: return "DW_AT_decimal_sign";
1758 case DW_AT_digit_count: return "DW_AT_digit_count";
1759 case DW_AT_picture_string: return "DW_AT_picture_string";
1760 case DW_AT_mutable: return "DW_AT_mutable";
1761 case DW_AT_threads_scaled: return "DW_AT_threads_scaled";
1762 case DW_AT_explicit: return "DW_AT_explicit";
1763 case DW_AT_object_pointer: return "DW_AT_object_pointer";
1764 case DW_AT_endianity: return "DW_AT_endianity";
1765 case DW_AT_elemental: return "DW_AT_elemental";
1766 case DW_AT_pure: return "DW_AT_pure";
1767 case DW_AT_recursive: return "DW_AT_recursive";
1768 /* DWARF 4 values. */
1769 case DW_AT_signature: return "DW_AT_signature";
1770 case DW_AT_main_subprogram: return "DW_AT_main_subprogram";
1771 case DW_AT_data_bit_offset: return "DW_AT_data_bit_offset";
1772 case DW_AT_const_expr: return "DW_AT_const_expr";
1773 case DW_AT_enum_class: return "DW_AT_enum_class";
1774 case DW_AT_linkage_name: return "DW_AT_linkage_name";
1776 /* HP and SGI/MIPS extensions. */
1777 case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin";
1778 case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin";
1779 case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin";
1780 case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor";
1781 case DW_AT_MIPS_software_pipeline_depth: return "DW_AT_MIPS_software_pipeline_depth";
1782 case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name";
1783 case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride";
1784 case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name";
1785 case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin";
1786 case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines";
1788 /* HP Extensions. */
1789 case DW_AT_HP_block_index: return "DW_AT_HP_block_index";
1790 case DW_AT_HP_actuals_stmt_list: return "DW_AT_HP_actuals_stmt_list";
1791 case DW_AT_HP_proc_per_section: return "DW_AT_HP_proc_per_section";
1792 case DW_AT_HP_raw_data_ptr: return "DW_AT_HP_raw_data_ptr";
1793 case DW_AT_HP_pass_by_reference: return "DW_AT_HP_pass_by_reference";
1794 case DW_AT_HP_opt_level: return "DW_AT_HP_opt_level";
1795 case DW_AT_HP_prof_version_id: return "DW_AT_HP_prof_version_id";
1796 case DW_AT_HP_opt_flags: return "DW_AT_HP_opt_flags";
1797 case DW_AT_HP_cold_region_low_pc: return "DW_AT_HP_cold_region_low_pc";
1798 case DW_AT_HP_cold_region_high_pc: return "DW_AT_HP_cold_region_high_pc";
1799 case DW_AT_HP_all_variables_modifiable: return "DW_AT_HP_all_variables_modifiable";
1800 case DW_AT_HP_linkage_name: return "DW_AT_HP_linkage_name";
1801 case DW_AT_HP_prof_flags: return "DW_AT_HP_prof_flags";
1803 /* One value is shared by the MIPS and HP extensions: */
1804 case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable";
1806 /* GNU extensions. */
1807 case DW_AT_sf_names: return "DW_AT_sf_names";
1808 case DW_AT_src_info: return "DW_AT_src_info";
1809 case DW_AT_mac_info: return "DW_AT_mac_info";
1810 case DW_AT_src_coords: return "DW_AT_src_coords";
1811 case DW_AT_body_begin: return "DW_AT_body_begin";
1812 case DW_AT_body_end: return "DW_AT_body_end";
1813 case DW_AT_GNU_vector: return "DW_AT_GNU_vector";
1814 case DW_AT_GNU_guarded_by: return "DW_AT_GNU_guarded_by";
1815 case DW_AT_GNU_pt_guarded_by: return "DW_AT_GNU_pt_guarded_by";
1816 case DW_AT_GNU_guarded: return "DW_AT_GNU_guarded";
1817 case DW_AT_GNU_pt_guarded: return "DW_AT_GNU_pt_guarded";
1818 case DW_AT_GNU_locks_excluded: return "DW_AT_GNU_locks_excluded";
1819 case DW_AT_GNU_exclusive_locks_required: return "DW_AT_GNU_exclusive_locks_required";
1820 case DW_AT_GNU_shared_locks_required: return "DW_AT_GNU_shared_locks_required";
1821 case DW_AT_GNU_odr_signature: return "DW_AT_GNU_odr_signature";
1822 case DW_AT_use_GNAT_descriptive_type: return "DW_AT_use_GNAT_descriptive_type";
1823 case DW_AT_GNAT_descriptive_type: return "DW_AT_GNAT_descriptive_type";
1825 /* UPC extension. */
1826 case DW_AT_upc_threads_scaled: return "DW_AT_upc_threads_scaled";
1828 /* PGI (STMicroelectronics) extensions. */
1829 case DW_AT_PGI_lbase: return "DW_AT_PGI_lbase";
1830 case DW_AT_PGI_soffset: return "DW_AT_PGI_soffset";
1831 case DW_AT_PGI_lstride: return "DW_AT_PGI_lstride";
1833 default:
1835 static char buffer[100];
1837 snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"),
1838 attribute);
1839 return buffer;
1844 static unsigned char *
1845 read_and_display_attr (unsigned long attribute,
1846 unsigned long form,
1847 unsigned char * data,
1848 unsigned long cu_offset,
1849 unsigned long pointer_size,
1850 unsigned long offset_size,
1851 int dwarf_version,
1852 debug_info * debug_info_p,
1853 int do_loc,
1854 struct dwarf_section * section)
1856 if (!do_loc)
1857 printf (" %-18s:", get_AT_name (attribute));
1858 data = read_and_display_attr_value (attribute, form, data, cu_offset,
1859 pointer_size, offset_size,
1860 dwarf_version, debug_info_p,
1861 do_loc, section);
1862 if (!do_loc)
1863 printf ("\n");
1864 return data;
1868 /* Process the contents of a .debug_info section. If do_loc is non-zero
1869 then we are scanning for location lists and we do not want to display
1870 anything to the user. If do_types is non-zero, we are processing
1871 a .debug_types section instead of a .debug_info section. */
1873 static int
1874 process_debug_info (struct dwarf_section *section,
1875 void *file,
1876 int do_loc,
1877 int do_types)
1879 unsigned char *start = section->start;
1880 unsigned char *end = start + section->size;
1881 unsigned char *section_begin;
1882 unsigned int unit;
1883 unsigned int num_units = 0;
1885 if ((do_loc || do_debug_loc || do_debug_ranges)
1886 && num_debug_info_entries == 0
1887 && ! do_types)
1889 unsigned long length;
1891 /* First scan the section to get the number of comp units. */
1892 for (section_begin = start, num_units = 0; section_begin < end;
1893 num_units ++)
1895 /* Read the first 4 bytes. For a 32-bit DWARF section, this
1896 will be the length. For a 64-bit DWARF section, it'll be
1897 the escape code 0xffffffff followed by an 8 byte length. */
1898 length = byte_get (section_begin, 4);
1900 if (length == 0xffffffff)
1902 length = byte_get (section_begin + 4, 8);
1903 section_begin += length + 12;
1905 else if (length >= 0xfffffff0 && length < 0xffffffff)
1907 warn (_("Reserved length value (%lx) found in section %s\n"), length, section->name);
1908 return 0;
1910 else
1911 section_begin += length + 4;
1913 /* Negative values are illegal, they may even cause infinite
1914 looping. This can happen if we can't accurately apply
1915 relocations to an object file. */
1916 if ((signed long) length <= 0)
1918 warn (_("Corrupt unit length (%lx) found in section %s\n"), length, section->name);
1919 return 0;
1923 if (num_units == 0)
1925 error (_("No comp units in %s section ?"), section->name);
1926 return 0;
1929 /* Then allocate an array to hold the information. */
1930 debug_information = (debug_info *) cmalloc (num_units,
1931 sizeof (* debug_information));
1932 if (debug_information == NULL)
1934 error (_("Not enough memory for a debug info array of %u entries"),
1935 num_units);
1936 return 0;
1940 if (!do_loc)
1942 printf (_("Contents of the %s section:\n\n"), section->name);
1944 load_debug_section (str, file);
1947 load_debug_section (abbrev, file);
1948 if (debug_displays [abbrev].section.start == NULL)
1950 warn (_("Unable to locate %s section!\n"),
1951 debug_displays [abbrev].section.name);
1952 return 0;
1955 for (section_begin = start, unit = 0; start < end; unit++)
1957 DWARF2_Internal_CompUnit compunit;
1958 unsigned char *hdrptr;
1959 unsigned char *tags;
1960 int level;
1961 unsigned long cu_offset;
1962 int offset_size;
1963 int initial_length_size;
1964 unsigned char signature[8] = { 0 };
1965 unsigned long type_offset = 0;
1967 hdrptr = start;
1969 compunit.cu_length = byte_get (hdrptr, 4);
1970 hdrptr += 4;
1972 if (compunit.cu_length == 0xffffffff)
1974 compunit.cu_length = byte_get (hdrptr, 8);
1975 hdrptr += 8;
1976 offset_size = 8;
1977 initial_length_size = 12;
1979 else
1981 offset_size = 4;
1982 initial_length_size = 4;
1985 compunit.cu_version = byte_get (hdrptr, 2);
1986 hdrptr += 2;
1988 cu_offset = start - section_begin;
1990 compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size);
1991 hdrptr += offset_size;
1993 compunit.cu_pointer_size = byte_get (hdrptr, 1);
1994 hdrptr += 1;
1996 if (do_types)
1998 int i;
2000 for (i = 0; i < 8; i++)
2002 signature[i] = byte_get (hdrptr, 1);
2003 hdrptr += 1;
2006 type_offset = byte_get (hdrptr, offset_size);
2007 hdrptr += offset_size;
2010 if ((do_loc || do_debug_loc || do_debug_ranges)
2011 && num_debug_info_entries == 0
2012 && ! do_types)
2014 debug_information [unit].cu_offset = cu_offset;
2015 debug_information [unit].pointer_size
2016 = compunit.cu_pointer_size;
2017 debug_information [unit].base_address = 0;
2018 debug_information [unit].loc_offsets = NULL;
2019 debug_information [unit].have_frame_base = NULL;
2020 debug_information [unit].max_loc_offsets = 0;
2021 debug_information [unit].num_loc_offsets = 0;
2022 debug_information [unit].range_lists = NULL;
2023 debug_information [unit].max_range_lists= 0;
2024 debug_information [unit].num_range_lists = 0;
2027 if (!do_loc)
2029 printf (_(" Compilation Unit @ offset 0x%lx:\n"), cu_offset);
2030 printf (_(" Length: 0x%lx (%s)\n"), compunit.cu_length,
2031 initial_length_size == 8 ? "64-bit" : "32-bit");
2032 printf (_(" Version: %d\n"), compunit.cu_version);
2033 printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset);
2034 printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
2035 if (do_types)
2037 int i;
2038 printf (_(" Signature: "));
2039 for (i = 0; i < 8; i++)
2040 printf ("%02x", signature[i]);
2041 printf ("\n");
2042 printf (_(" Type Offset: 0x%lx\n"), type_offset);
2046 if (cu_offset + compunit.cu_length + initial_length_size
2047 > section->size)
2049 warn (_("Debug info is corrupted, length of CU at %lx extends beyond end of section (length = %lx)\n"),
2050 cu_offset, compunit.cu_length);
2051 break;
2053 tags = hdrptr;
2054 start += compunit.cu_length + initial_length_size;
2056 if (compunit.cu_version != 2
2057 && compunit.cu_version != 3
2058 && compunit.cu_version != 4)
2060 warn (_("CU at offset %lx contains corrupt or unsupported version number: %d.\n"),
2061 cu_offset, compunit.cu_version);
2062 continue;
2065 free_abbrevs ();
2067 /* Process the abbrevs used by this compilation unit. DWARF
2068 sections under Mach-O have non-zero addresses. */
2069 if (compunit.cu_abbrev_offset >= debug_displays [abbrev].section.size)
2070 warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"),
2071 (unsigned long) compunit.cu_abbrev_offset,
2072 (unsigned long) debug_displays [abbrev].section.size);
2073 else
2074 process_abbrev_section
2075 ((unsigned char *) debug_displays [abbrev].section.start
2076 + compunit.cu_abbrev_offset - debug_displays [abbrev].section.address,
2077 (unsigned char *) debug_displays [abbrev].section.start
2078 + debug_displays [abbrev].section.size);
2080 level = 0;
2081 while (tags < start)
2083 unsigned int bytes_read;
2084 unsigned long abbrev_number;
2085 unsigned long die_offset;
2086 abbrev_entry *entry;
2087 abbrev_attr *attr;
2089 die_offset = tags - section_begin;
2091 abbrev_number = read_leb128 (tags, & bytes_read, 0);
2092 tags += bytes_read;
2094 /* A null DIE marks the end of a list of siblings or it may also be
2095 a section padding. */
2096 if (abbrev_number == 0)
2098 /* Check if it can be a section padding for the last CU. */
2099 if (level == 0 && start == end)
2101 unsigned char *chk;
2103 for (chk = tags; chk < start; chk++)
2104 if (*chk != 0)
2105 break;
2106 if (chk == start)
2107 break;
2110 --level;
2111 if (level < 0)
2113 static unsigned num_bogus_warns = 0;
2115 if (num_bogus_warns < 3)
2117 warn (_("Bogus end-of-siblings marker detected at offset %lx in .debug_info section\n"),
2118 die_offset);
2119 num_bogus_warns ++;
2120 if (num_bogus_warns == 3)
2121 warn (_("Further warnings about bogus end-of-sibling markers suppressed\n"));
2124 continue;
2127 if (!do_loc)
2128 printf (_(" <%d><%lx>: Abbrev Number: %lu"),
2129 level, die_offset, abbrev_number);
2131 /* Scan through the abbreviation list until we reach the
2132 correct entry. */
2133 for (entry = first_abbrev;
2134 entry && entry->entry != abbrev_number;
2135 entry = entry->next)
2136 continue;
2138 if (entry == NULL)
2140 if (!do_loc)
2142 printf ("\n");
2143 fflush (stdout);
2145 warn (_("DIE at offset %lx refers to abbreviation number %lu which does not exist\n"),
2146 die_offset, abbrev_number);
2147 return 0;
2150 if (!do_loc)
2151 printf (_(" (%s)\n"), get_TAG_name (entry->tag));
2153 switch (entry->tag)
2155 default:
2156 need_base_address = 0;
2157 break;
2158 case DW_TAG_compile_unit:
2159 need_base_address = 1;
2160 break;
2161 case DW_TAG_entry_point:
2162 case DW_TAG_subprogram:
2163 need_base_address = 0;
2164 /* Assuming that there is no DW_AT_frame_base. */
2165 have_frame_base = 0;
2166 break;
2169 for (attr = entry->first_attr; attr; attr = attr->next)
2171 if (! do_loc)
2172 /* Show the offset from where the tag was extracted. */
2173 printf (" <%2lx>", (unsigned long)(tags - section_begin));
2175 tags = read_and_display_attr (attr->attribute,
2176 attr->form,
2177 tags, cu_offset,
2178 compunit.cu_pointer_size,
2179 offset_size,
2180 compunit.cu_version,
2181 debug_information + unit,
2182 do_loc, section);
2185 if (entry->children)
2186 ++level;
2190 /* Set num_debug_info_entries here so that it can be used to check if
2191 we need to process .debug_loc and .debug_ranges sections. */
2192 if ((do_loc || do_debug_loc || do_debug_ranges)
2193 && num_debug_info_entries == 0
2194 && ! do_types)
2195 num_debug_info_entries = num_units;
2197 if (!do_loc)
2199 printf ("\n");
2202 return 1;
2205 /* Locate and scan the .debug_info section in the file and record the pointer
2206 sizes and offsets for the compilation units in it. Usually an executable
2207 will have just one pointer size, but this is not guaranteed, and so we try
2208 not to make any assumptions. Returns zero upon failure, or the number of
2209 compilation units upon success. */
2211 static unsigned int
2212 load_debug_info (void * file)
2214 /* Reset the last pointer size so that we can issue correct error
2215 messages if we are displaying the contents of more than one section. */
2216 last_pointer_size = 0;
2217 warned_about_missing_comp_units = FALSE;
2219 /* If we have already tried and failed to load the .debug_info
2220 section then do not bother to repear the task. */
2221 if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
2222 return 0;
2224 /* If we already have the information there is nothing else to do. */
2225 if (num_debug_info_entries > 0)
2226 return num_debug_info_entries;
2228 if (load_debug_section (info, file)
2229 && process_debug_info (&debug_displays [info].section, file, 1, 0))
2230 return num_debug_info_entries;
2232 num_debug_info_entries = DEBUG_INFO_UNAVAILABLE;
2233 return 0;
2236 static int
2237 display_debug_lines_raw (struct dwarf_section *section,
2238 unsigned char *data,
2239 unsigned char *end)
2241 unsigned char *start = section->start;
2243 printf (_("Raw dump of debug contents of section %s:\n\n"),
2244 section->name);
2246 while (data < end)
2248 DWARF2_Internal_LineInfo linfo;
2249 unsigned char *standard_opcodes;
2250 unsigned char *end_of_sequence;
2251 unsigned char *hdrptr;
2252 unsigned long hdroff;
2253 int initial_length_size;
2254 int offset_size;
2255 int i;
2257 hdrptr = data;
2258 hdroff = hdrptr - start;
2260 /* Check the length of the block. */
2261 linfo.li_length = byte_get (hdrptr, 4);
2262 hdrptr += 4;
2264 if (linfo.li_length == 0xffffffff)
2266 /* This section is 64-bit DWARF 3. */
2267 linfo.li_length = byte_get (hdrptr, 8);
2268 hdrptr += 8;
2269 offset_size = 8;
2270 initial_length_size = 12;
2272 else
2274 offset_size = 4;
2275 initial_length_size = 4;
2278 if (linfo.li_length + initial_length_size > section->size)
2280 warn
2281 (_("The information in section %s appears to be corrupt - the section is too small\n"),
2282 section->name);
2283 return 0;
2286 /* Check its version number. */
2287 linfo.li_version = byte_get (hdrptr, 2);
2288 hdrptr += 2;
2289 if (linfo.li_version != 2
2290 && linfo.li_version != 3
2291 && linfo.li_version != 4)
2293 warn (_("Only DWARF version 2, 3 and 4 line info is currently supported.\n"));
2294 return 0;
2297 linfo.li_prologue_length = byte_get (hdrptr, offset_size);
2298 hdrptr += offset_size;
2299 linfo.li_min_insn_length = byte_get (hdrptr, 1);
2300 hdrptr++;
2301 if (linfo.li_version >= 4)
2303 linfo.li_max_ops_per_insn = byte_get (hdrptr, 1);
2304 hdrptr++;
2305 if (linfo.li_max_ops_per_insn == 0)
2307 warn (_("Invalid maximum operations per insn.\n"));
2308 return 0;
2311 else
2312 linfo.li_max_ops_per_insn = 1;
2313 linfo.li_default_is_stmt = byte_get (hdrptr, 1);
2314 hdrptr++;
2315 linfo.li_line_base = byte_get (hdrptr, 1);
2316 hdrptr++;
2317 linfo.li_line_range = byte_get (hdrptr, 1);
2318 hdrptr++;
2319 linfo.li_opcode_base = byte_get (hdrptr, 1);
2320 hdrptr++;
2322 /* Sign extend the line base field. */
2323 linfo.li_line_base <<= 24;
2324 linfo.li_line_base >>= 24;
2326 printf (_(" Offset: 0x%lx\n"), hdroff);
2327 printf (_(" Length: %ld\n"), linfo.li_length);
2328 printf (_(" DWARF Version: %d\n"), linfo.li_version);
2329 printf (_(" Prologue Length: %d\n"), linfo.li_prologue_length);
2330 printf (_(" Minimum Instruction Length: %d\n"), linfo.li_min_insn_length);
2331 if (linfo.li_version >= 4)
2332 printf (_(" Maximum Ops per Instruction: %d\n"), linfo.li_max_ops_per_insn);
2333 printf (_(" Initial value of 'is_stmt': %d\n"), linfo.li_default_is_stmt);
2334 printf (_(" Line Base: %d\n"), linfo.li_line_base);
2335 printf (_(" Line Range: %d\n"), linfo.li_line_range);
2336 printf (_(" Opcode Base: %d\n"), linfo.li_opcode_base);
2338 end_of_sequence = data + linfo.li_length + initial_length_size;
2340 reset_state_machine (linfo.li_default_is_stmt);
2342 /* Display the contents of the Opcodes table. */
2343 standard_opcodes = hdrptr;
2345 printf (_("\n Opcodes:\n"));
2347 for (i = 1; i < linfo.li_opcode_base; i++)
2348 printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]);
2350 /* Display the contents of the Directory table. */
2351 data = standard_opcodes + linfo.li_opcode_base - 1;
2353 if (*data == 0)
2354 printf (_("\n The Directory Table is empty.\n"));
2355 else
2357 printf (_("\n The Directory Table:\n"));
2359 while (*data != 0)
2361 printf (_(" %s\n"), data);
2363 data += strlen ((char *) data) + 1;
2367 /* Skip the NUL at the end of the table. */
2368 data++;
2370 /* Display the contents of the File Name table. */
2371 if (*data == 0)
2372 printf (_("\n The File Name Table is empty.\n"));
2373 else
2375 printf (_("\n The File Name Table:\n"));
2376 printf (_(" Entry\tDir\tTime\tSize\tName\n"));
2378 while (*data != 0)
2380 unsigned char *name;
2381 unsigned int bytes_read;
2383 printf (_(" %d\t"), ++state_machine_regs.last_file_entry);
2384 name = data;
2386 data += strlen ((char *) data) + 1;
2388 printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
2389 data += bytes_read;
2390 printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
2391 data += bytes_read;
2392 printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
2393 data += bytes_read;
2394 printf (_("%s\n"), name);
2398 /* Skip the NUL at the end of the table. */
2399 data++;
2401 /* Now display the statements. */
2402 printf (_("\n Line Number Statements:\n"));
2404 while (data < end_of_sequence)
2406 unsigned char op_code;
2407 int adv;
2408 unsigned long int uladv;
2409 unsigned int bytes_read;
2411 op_code = *data++;
2413 if (op_code >= linfo.li_opcode_base)
2415 op_code -= linfo.li_opcode_base;
2416 uladv = (op_code / linfo.li_line_range);
2417 if (linfo.li_max_ops_per_insn == 1)
2419 uladv *= linfo.li_min_insn_length;
2420 state_machine_regs.address += uladv;
2421 printf (_(" Special opcode %d: advance Address by %lu to 0x%lx"),
2422 op_code, uladv, state_machine_regs.address);
2424 else
2426 state_machine_regs.address
2427 += ((state_machine_regs.op_index + uladv)
2428 / linfo.li_max_ops_per_insn)
2429 * linfo.li_min_insn_length;
2430 state_machine_regs.op_index
2431 = (state_machine_regs.op_index + uladv)
2432 % linfo.li_max_ops_per_insn;
2433 printf (_(" Special opcode %d: advance Address by %lu to 0x%lx[%d]"),
2434 op_code, uladv, state_machine_regs.address,
2435 state_machine_regs.op_index);
2437 adv = (op_code % linfo.li_line_range) + linfo.li_line_base;
2438 state_machine_regs.line += adv;
2439 printf (_(" and Line by %d to %d\n"),
2440 adv, state_machine_regs.line);
2442 else switch (op_code)
2444 case DW_LNS_extended_op:
2445 data += process_extended_line_op (data, linfo.li_default_is_stmt);
2446 break;
2448 case DW_LNS_copy:
2449 printf (_(" Copy\n"));
2450 break;
2452 case DW_LNS_advance_pc:
2453 uladv = read_leb128 (data, & bytes_read, 0);
2454 data += bytes_read;
2455 if (linfo.li_max_ops_per_insn == 1)
2457 uladv *= linfo.li_min_insn_length;
2458 state_machine_regs.address += uladv;
2459 printf (_(" Advance PC by %lu to 0x%lx\n"), uladv,
2460 state_machine_regs.address);
2462 else
2464 state_machine_regs.address
2465 += ((state_machine_regs.op_index + uladv)
2466 / linfo.li_max_ops_per_insn)
2467 * linfo.li_min_insn_length;
2468 state_machine_regs.op_index
2469 = (state_machine_regs.op_index + uladv)
2470 % linfo.li_max_ops_per_insn;
2471 printf (_(" Advance PC by %lu to 0x%lx[%d]\n"), uladv,
2472 state_machine_regs.address,
2473 state_machine_regs.op_index);
2475 break;
2477 case DW_LNS_advance_line:
2478 adv = read_leb128 (data, & bytes_read, 1);
2479 data += bytes_read;
2480 state_machine_regs.line += adv;
2481 printf (_(" Advance Line by %d to %d\n"), adv,
2482 state_machine_regs.line);
2483 break;
2485 case DW_LNS_set_file:
2486 adv = read_leb128 (data, & bytes_read, 0);
2487 data += bytes_read;
2488 printf (_(" Set File Name to entry %d in the File Name Table\n"),
2489 adv);
2490 state_machine_regs.file = adv;
2491 break;
2493 case DW_LNS_set_column:
2494 uladv = read_leb128 (data, & bytes_read, 0);
2495 data += bytes_read;
2496 printf (_(" Set column to %lu\n"), uladv);
2497 state_machine_regs.column = uladv;
2498 break;
2500 case DW_LNS_negate_stmt:
2501 adv = state_machine_regs.is_stmt;
2502 adv = ! adv;
2503 printf (_(" Set is_stmt to %d\n"), adv);
2504 state_machine_regs.is_stmt = adv;
2505 break;
2507 case DW_LNS_set_basic_block:
2508 printf (_(" Set basic block\n"));
2509 state_machine_regs.basic_block = 1;
2510 break;
2512 case DW_LNS_const_add_pc:
2513 uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range);
2514 if (linfo.li_max_ops_per_insn)
2516 uladv *= linfo.li_min_insn_length;
2517 state_machine_regs.address += uladv;
2518 printf (_(" Advance PC by constant %lu to 0x%lx\n"), uladv,
2519 state_machine_regs.address);
2521 else
2523 state_machine_regs.address
2524 += ((state_machine_regs.op_index + uladv)
2525 / linfo.li_max_ops_per_insn)
2526 * linfo.li_min_insn_length;
2527 state_machine_regs.op_index
2528 = (state_machine_regs.op_index + uladv)
2529 % linfo.li_max_ops_per_insn;
2530 printf (_(" Advance PC by constant %lu to 0x%lx[%d]\n"),
2531 uladv, state_machine_regs.address,
2532 state_machine_regs.op_index);
2534 break;
2536 case DW_LNS_fixed_advance_pc:
2537 uladv = byte_get (data, 2);
2538 data += 2;
2539 state_machine_regs.address += uladv;
2540 state_machine_regs.op_index = 0;
2541 printf (_(" Advance PC by fixed size amount %lu to 0x%lx\n"),
2542 uladv, state_machine_regs.address);
2543 break;
2545 case DW_LNS_set_prologue_end:
2546 printf (_(" Set prologue_end to true\n"));
2547 break;
2549 case DW_LNS_set_epilogue_begin:
2550 printf (_(" Set epilogue_begin to true\n"));
2551 break;
2553 case DW_LNS_set_isa:
2554 uladv = read_leb128 (data, & bytes_read, 0);
2555 data += bytes_read;
2556 printf (_(" Set ISA to %lu\n"), uladv);
2557 break;
2559 default:
2560 printf (_(" Unknown opcode %d with operands: "), op_code);
2562 for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
2564 printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0),
2565 i == 1 ? "" : ", ");
2566 data += bytes_read;
2568 putchar ('\n');
2569 break;
2572 putchar ('\n');
2575 return 1;
2578 typedef struct
2580 unsigned char *name;
2581 unsigned int directory_index;
2582 unsigned int modification_date;
2583 unsigned int length;
2584 } File_Entry;
2586 /* Output a decoded representation of the .debug_line section. */
2588 static int
2589 display_debug_lines_decoded (struct dwarf_section *section,
2590 unsigned char *data,
2591 unsigned char *end)
2593 printf (_("Decoded dump of debug contents of section %s:\n\n"),
2594 section->name);
2596 while (data < end)
2598 /* This loop amounts to one iteration per compilation unit. */
2599 DWARF2_Internal_LineInfo linfo;
2600 unsigned char *standard_opcodes;
2601 unsigned char *end_of_sequence;
2602 unsigned char *hdrptr;
2603 int initial_length_size;
2604 int offset_size;
2605 int i;
2606 File_Entry *file_table = NULL;
2607 unsigned char **directory_table = NULL;
2609 hdrptr = data;
2611 /* Extract information from the Line Number Program Header.
2612 (section 6.2.4 in the Dwarf3 doc). */
2614 /* Get the length of this CU's line number information block. */
2615 linfo.li_length = byte_get (hdrptr, 4);
2616 hdrptr += 4;
2618 if (linfo.li_length == 0xffffffff)
2620 /* This section is 64-bit DWARF 3. */
2621 linfo.li_length = byte_get (hdrptr, 8);
2622 hdrptr += 8;
2623 offset_size = 8;
2624 initial_length_size = 12;
2626 else
2628 offset_size = 4;
2629 initial_length_size = 4;
2632 if (linfo.li_length + initial_length_size > section->size)
2634 warn (_("The line info appears to be corrupt - "
2635 "the section is too small\n"));
2636 return 0;
2639 /* Get this CU's Line Number Block version number. */
2640 linfo.li_version = byte_get (hdrptr, 2);
2641 hdrptr += 2;
2642 if (linfo.li_version != 2
2643 && linfo.li_version != 3
2644 && linfo.li_version != 4)
2646 warn (_("Only DWARF version 2, 3 and 4 line info is currently "
2647 "supported.\n"));
2648 return 0;
2651 linfo.li_prologue_length = byte_get (hdrptr, offset_size);
2652 hdrptr += offset_size;
2653 linfo.li_min_insn_length = byte_get (hdrptr, 1);
2654 hdrptr++;
2655 if (linfo.li_version >= 4)
2657 linfo.li_max_ops_per_insn = byte_get (hdrptr, 1);
2658 hdrptr++;
2659 if (linfo.li_max_ops_per_insn == 0)
2661 warn (_("Invalid maximum operations per insn.\n"));
2662 return 0;
2665 else
2666 linfo.li_max_ops_per_insn = 1;
2667 linfo.li_default_is_stmt = byte_get (hdrptr, 1);
2668 hdrptr++;
2669 linfo.li_line_base = byte_get (hdrptr, 1);
2670 hdrptr++;
2671 linfo.li_line_range = byte_get (hdrptr, 1);
2672 hdrptr++;
2673 linfo.li_opcode_base = byte_get (hdrptr, 1);
2674 hdrptr++;
2676 /* Sign extend the line base field. */
2677 linfo.li_line_base <<= 24;
2678 linfo.li_line_base >>= 24;
2680 /* Find the end of this CU's Line Number Information Block. */
2681 end_of_sequence = data + linfo.li_length + initial_length_size;
2683 reset_state_machine (linfo.li_default_is_stmt);
2685 /* Save a pointer to the contents of the Opcodes table. */
2686 standard_opcodes = hdrptr;
2688 /* Traverse the Directory table just to count entries. */
2689 data = standard_opcodes + linfo.li_opcode_base - 1;
2690 if (*data != 0)
2692 unsigned int n_directories = 0;
2693 unsigned char *ptr_directory_table = data;
2695 while (*data != 0)
2697 data += strlen ((char *) data) + 1;
2698 n_directories++;
2701 /* Go through the directory table again to save the directories. */
2702 directory_table = (unsigned char **)
2703 xmalloc (n_directories * sizeof (unsigned char *));
2705 i = 0;
2706 while (*ptr_directory_table != 0)
2708 directory_table[i] = ptr_directory_table;
2709 ptr_directory_table += strlen ((char *) ptr_directory_table) + 1;
2710 i++;
2713 /* Skip the NUL at the end of the table. */
2714 data++;
2716 /* Traverse the File Name table just to count the entries. */
2717 if (*data != 0)
2719 unsigned int n_files = 0;
2720 unsigned char *ptr_file_name_table = data;
2722 while (*data != 0)
2724 unsigned int bytes_read;
2726 /* Skip Name, directory index, last modification time and length
2727 of file. */
2728 data += strlen ((char *) data) + 1;
2729 read_leb128 (data, & bytes_read, 0);
2730 data += bytes_read;
2731 read_leb128 (data, & bytes_read, 0);
2732 data += bytes_read;
2733 read_leb128 (data, & bytes_read, 0);
2734 data += bytes_read;
2736 n_files++;
2739 /* Go through the file table again to save the strings. */
2740 file_table = (File_Entry *) xmalloc (n_files * sizeof (File_Entry));
2742 i = 0;
2743 while (*ptr_file_name_table != 0)
2745 unsigned int bytes_read;
2747 file_table[i].name = ptr_file_name_table;
2748 ptr_file_name_table += strlen ((char *) ptr_file_name_table) + 1;
2750 /* We are not interested in directory, time or size. */
2751 file_table[i].directory_index = read_leb128 (ptr_file_name_table,
2752 & bytes_read, 0);
2753 ptr_file_name_table += bytes_read;
2754 file_table[i].modification_date = read_leb128 (ptr_file_name_table,
2755 & bytes_read, 0);
2756 ptr_file_name_table += bytes_read;
2757 file_table[i].length = read_leb128 (ptr_file_name_table, & bytes_read, 0);
2758 ptr_file_name_table += bytes_read;
2759 i++;
2761 i = 0;
2763 /* Print the Compilation Unit's name and a header. */
2764 if (directory_table == NULL)
2766 printf (_("CU: %s:\n"), file_table[0].name);
2767 printf (_("File name Line number Starting address\n"));
2769 else
2771 if (do_wide || strlen ((char *) directory_table[0]) < 76)
2773 printf (_("CU: %s/%s:\n"), directory_table[0],
2774 file_table[0].name);
2776 else
2778 printf (_("%s:\n"), file_table[0].name);
2780 printf (_("File name Line number Starting address\n"));
2784 /* Skip the NUL at the end of the table. */
2785 data++;
2787 /* This loop iterates through the Dwarf Line Number Program. */
2788 while (data < end_of_sequence)
2790 unsigned char op_code;
2791 int adv;
2792 unsigned long int uladv;
2793 unsigned int bytes_read;
2794 int is_special_opcode = 0;
2796 op_code = *data++;
2798 if (op_code >= linfo.li_opcode_base)
2800 op_code -= linfo.li_opcode_base;
2801 uladv = (op_code / linfo.li_line_range);
2802 if (linfo.li_max_ops_per_insn == 1)
2804 uladv *= linfo.li_min_insn_length;
2805 state_machine_regs.address += uladv;
2807 else
2809 state_machine_regs.address
2810 += ((state_machine_regs.op_index + uladv)
2811 / linfo.li_max_ops_per_insn)
2812 * linfo.li_min_insn_length;
2813 state_machine_regs.op_index
2814 = (state_machine_regs.op_index + uladv)
2815 % linfo.li_max_ops_per_insn;
2818 adv = (op_code % linfo.li_line_range) + linfo.li_line_base;
2819 state_machine_regs.line += adv;
2820 is_special_opcode = 1;
2822 else switch (op_code)
2824 case DW_LNS_extended_op:
2826 unsigned int ext_op_code_len;
2827 unsigned char ext_op_code;
2828 unsigned char *op_code_data = data;
2830 ext_op_code_len = read_leb128 (op_code_data, &bytes_read, 0);
2831 op_code_data += bytes_read;
2833 if (ext_op_code_len == 0)
2835 warn (_("badly formed extended line op encountered!\n"));
2836 break;
2838 ext_op_code_len += bytes_read;
2839 ext_op_code = *op_code_data++;
2841 switch (ext_op_code)
2843 case DW_LNE_end_sequence:
2844 reset_state_machine (linfo.li_default_is_stmt);
2845 break;
2846 case DW_LNE_set_address:
2847 state_machine_regs.address =
2848 byte_get (op_code_data, ext_op_code_len - bytes_read - 1);
2849 state_machine_regs.op_index = 0;
2850 break;
2851 case DW_LNE_define_file:
2853 unsigned int dir_index = 0;
2855 ++state_machine_regs.last_file_entry;
2856 op_code_data += strlen ((char *) op_code_data) + 1;
2857 dir_index = read_leb128 (op_code_data, & bytes_read, 0);
2858 op_code_data += bytes_read;
2859 read_leb128 (op_code_data, & bytes_read, 0);
2860 op_code_data += bytes_read;
2861 read_leb128 (op_code_data, & bytes_read, 0);
2863 printf (_("%s:\n"), directory_table[dir_index]);
2864 break;
2866 default:
2867 printf (_("UNKNOWN: length %d\n"), ext_op_code_len - bytes_read);
2868 break;
2870 data += ext_op_code_len;
2871 break;
2873 case DW_LNS_copy:
2874 break;
2876 case DW_LNS_advance_pc:
2877 uladv = read_leb128 (data, & bytes_read, 0);
2878 data += bytes_read;
2879 if (linfo.li_max_ops_per_insn == 1)
2881 uladv *= linfo.li_min_insn_length;
2882 state_machine_regs.address += uladv;
2884 else
2886 state_machine_regs.address
2887 += ((state_machine_regs.op_index + uladv)
2888 / linfo.li_max_ops_per_insn)
2889 * linfo.li_min_insn_length;
2890 state_machine_regs.op_index
2891 = (state_machine_regs.op_index + uladv)
2892 % linfo.li_max_ops_per_insn;
2894 break;
2896 case DW_LNS_advance_line:
2897 adv = read_leb128 (data, & bytes_read, 1);
2898 data += bytes_read;
2899 state_machine_regs.line += adv;
2900 break;
2902 case DW_LNS_set_file:
2903 adv = read_leb128 (data, & bytes_read, 0);
2904 data += bytes_read;
2905 state_machine_regs.file = adv;
2906 if (file_table[state_machine_regs.file - 1].directory_index == 0)
2908 /* If directory index is 0, that means current directory. */
2909 printf (_("\n./%s:[++]\n"),
2910 file_table[state_machine_regs.file - 1].name);
2912 else
2914 /* The directory index starts counting at 1. */
2915 printf (_("\n%s/%s:\n"),
2916 directory_table[file_table[state_machine_regs.file - 1].directory_index - 1],
2917 file_table[state_machine_regs.file - 1].name);
2919 break;
2921 case DW_LNS_set_column:
2922 uladv = read_leb128 (data, & bytes_read, 0);
2923 data += bytes_read;
2924 state_machine_regs.column = uladv;
2925 break;
2927 case DW_LNS_negate_stmt:
2928 adv = state_machine_regs.is_stmt;
2929 adv = ! adv;
2930 state_machine_regs.is_stmt = adv;
2931 break;
2933 case DW_LNS_set_basic_block:
2934 state_machine_regs.basic_block = 1;
2935 break;
2937 case DW_LNS_const_add_pc:
2938 uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range);
2939 if (linfo.li_max_ops_per_insn == 1)
2941 uladv *= linfo.li_min_insn_length;
2942 state_machine_regs.address += uladv;
2944 else
2946 state_machine_regs.address
2947 += ((state_machine_regs.op_index + uladv)
2948 / linfo.li_max_ops_per_insn)
2949 * linfo.li_min_insn_length;
2950 state_machine_regs.op_index
2951 = (state_machine_regs.op_index + uladv)
2952 % linfo.li_max_ops_per_insn;
2954 break;
2956 case DW_LNS_fixed_advance_pc:
2957 uladv = byte_get (data, 2);
2958 data += 2;
2959 state_machine_regs.address += uladv;
2960 state_machine_regs.op_index = 0;
2961 break;
2963 case DW_LNS_set_prologue_end:
2964 break;
2966 case DW_LNS_set_epilogue_begin:
2967 break;
2969 case DW_LNS_set_isa:
2970 uladv = read_leb128 (data, & bytes_read, 0);
2971 data += bytes_read;
2972 printf (_(" Set ISA to %lu\n"), uladv);
2973 break;
2975 default:
2976 printf (_(" Unknown opcode %d with operands: "), op_code);
2978 for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
2980 printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0),
2981 i == 1 ? "" : ", ");
2982 data += bytes_read;
2984 putchar ('\n');
2985 break;
2988 /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row
2989 to the DWARF address/line matrix. */
2990 if ((is_special_opcode) || (op_code == DW_LNE_end_sequence)
2991 || (op_code == DW_LNS_copy))
2993 const unsigned int MAX_FILENAME_LENGTH = 35;
2994 char *fileName = (char *)file_table[state_machine_regs.file - 1].name;
2995 char *newFileName = NULL;
2996 size_t fileNameLength = strlen (fileName);
2998 if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide))
3000 newFileName = (char *) xmalloc (MAX_FILENAME_LENGTH + 1);
3001 /* Truncate file name */
3002 strncpy (newFileName,
3003 fileName + fileNameLength - MAX_FILENAME_LENGTH,
3004 MAX_FILENAME_LENGTH + 1);
3006 else
3008 newFileName = (char *) xmalloc (fileNameLength + 1);
3009 strncpy (newFileName, fileName, fileNameLength + 1);
3012 if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH))
3014 if (linfo.li_max_ops_per_insn == 1)
3015 printf (_("%-35s %11d %#18lx\n"), newFileName,
3016 state_machine_regs.line,
3017 state_machine_regs.address);
3018 else
3019 printf (_("%-35s %11d %#18lx[%d]\n"), newFileName,
3020 state_machine_regs.line,
3021 state_machine_regs.address,
3022 state_machine_regs.op_index);
3024 else
3026 if (linfo.li_max_ops_per_insn == 1)
3027 printf (_("%s %11d %#18lx\n"), newFileName,
3028 state_machine_regs.line,
3029 state_machine_regs.address);
3030 else
3031 printf (_("%s %11d %#18lx[%d]\n"), newFileName,
3032 state_machine_regs.line,
3033 state_machine_regs.address,
3034 state_machine_regs.op_index);
3037 if (op_code == DW_LNE_end_sequence)
3038 printf ("\n");
3040 free (newFileName);
3043 free (file_table);
3044 file_table = NULL;
3045 free (directory_table);
3046 directory_table = NULL;
3047 putchar ('\n');
3050 return 1;
3053 static int
3054 display_debug_lines (struct dwarf_section *section, void *file)
3056 unsigned char *data = section->start;
3057 unsigned char *end = data + section->size;
3058 int retValRaw = 1;
3059 int retValDecoded = 1;
3061 if (load_debug_info (file) == 0)
3063 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
3064 section->name);
3065 return 0;
3068 if (do_debug_lines == 0)
3069 do_debug_lines |= FLAG_DEBUG_LINES_RAW;
3071 if (do_debug_lines & FLAG_DEBUG_LINES_RAW)
3072 retValRaw = display_debug_lines_raw (section, data, end);
3074 if (do_debug_lines & FLAG_DEBUG_LINES_DECODED)
3075 retValDecoded = display_debug_lines_decoded (section, data, end);
3077 if (!retValRaw || !retValDecoded)
3078 return 0;
3080 return 1;
3083 static debug_info *
3084 find_debug_info_for_offset (unsigned long offset)
3086 unsigned int i;
3088 if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
3089 return NULL;
3091 for (i = 0; i < num_debug_info_entries; i++)
3092 if (debug_information[i].cu_offset == offset)
3093 return debug_information + i;
3095 return NULL;
3098 static int
3099 display_debug_pubnames (struct dwarf_section *section,
3100 void *file ATTRIBUTE_UNUSED)
3102 DWARF2_Internal_PubNames names;
3103 unsigned char *start = section->start;
3104 unsigned char *end = start + section->size;
3106 /* It does not matter if this load fails,
3107 we test for that later on. */
3108 load_debug_info (file);
3110 printf (_("Contents of the %s section:\n\n"), section->name);
3112 while (start < end)
3114 unsigned char *data;
3115 unsigned long offset;
3116 int offset_size, initial_length_size;
3118 data = start;
3120 names.pn_length = byte_get (data, 4);
3121 data += 4;
3122 if (names.pn_length == 0xffffffff)
3124 names.pn_length = byte_get (data, 8);
3125 data += 8;
3126 offset_size = 8;
3127 initial_length_size = 12;
3129 else
3131 offset_size = 4;
3132 initial_length_size = 4;
3135 names.pn_version = byte_get (data, 2);
3136 data += 2;
3138 names.pn_offset = byte_get (data, offset_size);
3139 data += offset_size;
3141 if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
3142 && num_debug_info_entries > 0
3143 && find_debug_info_for_offset (names.pn_offset) == NULL)
3144 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
3145 names.pn_offset, section->name);
3147 names.pn_size = byte_get (data, offset_size);
3148 data += offset_size;
3150 start += names.pn_length + initial_length_size;
3152 if (names.pn_version != 2 && names.pn_version != 3)
3154 static int warned = 0;
3156 if (! warned)
3158 warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
3159 warned = 1;
3162 continue;
3165 printf (_(" Length: %ld\n"),
3166 names.pn_length);
3167 printf (_(" Version: %d\n"),
3168 names.pn_version);
3169 printf (_(" Offset into .debug_info section: 0x%lx\n"),
3170 names.pn_offset);
3171 printf (_(" Size of area in .debug_info section: %ld\n"),
3172 names.pn_size);
3174 printf (_("\n Offset\tName\n"));
3178 offset = byte_get (data, offset_size);
3180 if (offset != 0)
3182 data += offset_size;
3183 printf (" %-6lx\t%s\n", offset, data);
3184 data += strlen ((char *) data) + 1;
3187 while (offset != 0);
3190 printf ("\n");
3191 return 1;
3194 static int
3195 display_debug_macinfo (struct dwarf_section *section,
3196 void *file ATTRIBUTE_UNUSED)
3198 unsigned char *start = section->start;
3199 unsigned char *end = start + section->size;
3200 unsigned char *curr = start;
3201 unsigned int bytes_read;
3202 enum dwarf_macinfo_record_type op;
3204 printf (_("Contents of the %s section:\n\n"), section->name);
3206 while (curr < end)
3208 unsigned int lineno;
3209 const char *string;
3211 op = (enum dwarf_macinfo_record_type) *curr;
3212 curr++;
3214 switch (op)
3216 case DW_MACINFO_start_file:
3218 unsigned int filenum;
3220 lineno = read_leb128 (curr, & bytes_read, 0);
3221 curr += bytes_read;
3222 filenum = read_leb128 (curr, & bytes_read, 0);
3223 curr += bytes_read;
3225 printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"),
3226 lineno, filenum);
3228 break;
3230 case DW_MACINFO_end_file:
3231 printf (_(" DW_MACINFO_end_file\n"));
3232 break;
3234 case DW_MACINFO_define:
3235 lineno = read_leb128 (curr, & bytes_read, 0);
3236 curr += bytes_read;
3237 string = (char *) curr;
3238 curr += strlen (string) + 1;
3239 printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"),
3240 lineno, string);
3241 break;
3243 case DW_MACINFO_undef:
3244 lineno = read_leb128 (curr, & bytes_read, 0);
3245 curr += bytes_read;
3246 string = (char *) curr;
3247 curr += strlen (string) + 1;
3248 printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"),
3249 lineno, string);
3250 break;
3252 case DW_MACINFO_vendor_ext:
3254 unsigned int constant;
3256 constant = read_leb128 (curr, & bytes_read, 0);
3257 curr += bytes_read;
3258 string = (char *) curr;
3259 curr += strlen (string) + 1;
3260 printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"),
3261 constant, string);
3263 break;
3267 return 1;
3270 static int
3271 display_debug_abbrev (struct dwarf_section *section,
3272 void *file ATTRIBUTE_UNUSED)
3274 abbrev_entry *entry;
3275 unsigned char *start = section->start;
3276 unsigned char *end = start + section->size;
3278 printf (_("Contents of the %s section:\n\n"), section->name);
3282 free_abbrevs ();
3284 start = process_abbrev_section (start, end);
3286 if (first_abbrev == NULL)
3287 continue;
3289 printf (_(" Number TAG\n"));
3291 for (entry = first_abbrev; entry; entry = entry->next)
3293 abbrev_attr *attr;
3295 printf (_(" %ld %s [%s]\n"),
3296 entry->entry,
3297 get_TAG_name (entry->tag),
3298 entry->children ? _("has children") : _("no children"));
3300 for (attr = entry->first_attr; attr; attr = attr->next)
3301 printf (_(" %-18s %s\n"),
3302 get_AT_name (attr->attribute),
3303 get_FORM_name (attr->form));
3306 while (start);
3308 printf ("\n");
3310 return 1;
3313 static int
3314 display_debug_loc (struct dwarf_section *section, void *file)
3316 unsigned char *start = section->start;
3317 unsigned char *section_end;
3318 unsigned long bytes;
3319 unsigned char *section_begin = start;
3320 unsigned int num_loc_list = 0;
3321 unsigned long last_offset = 0;
3322 unsigned int first = 0;
3323 unsigned int i;
3324 unsigned int j;
3325 int seen_first_offset = 0;
3326 int use_debug_info = 1;
3327 unsigned char *next;
3329 bytes = section->size;
3330 section_end = start + bytes;
3332 if (bytes == 0)
3334 printf (_("\nThe %s section is empty.\n"), section->name);
3335 return 0;
3338 if (load_debug_info (file) == 0)
3340 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
3341 section->name);
3342 return 0;
3345 /* Check the order of location list in .debug_info section. If
3346 offsets of location lists are in the ascending order, we can
3347 use `debug_information' directly. */
3348 for (i = 0; i < num_debug_info_entries; i++)
3350 unsigned int num;
3352 num = debug_information [i].num_loc_offsets;
3353 num_loc_list += num;
3355 /* Check if we can use `debug_information' directly. */
3356 if (use_debug_info && num != 0)
3358 if (!seen_first_offset)
3360 /* This is the first location list. */
3361 last_offset = debug_information [i].loc_offsets [0];
3362 first = i;
3363 seen_first_offset = 1;
3364 j = 1;
3366 else
3367 j = 0;
3369 for (; j < num; j++)
3371 if (last_offset >
3372 debug_information [i].loc_offsets [j])
3374 use_debug_info = 0;
3375 break;
3377 last_offset = debug_information [i].loc_offsets [j];
3382 if (!use_debug_info)
3383 /* FIXME: Should we handle this case? */
3384 error (_("Location lists in .debug_info section aren't in ascending order!\n"));
3386 if (!seen_first_offset)
3387 error (_("No location lists in .debug_info section!\n"));
3389 /* DWARF sections under Mach-O have non-zero addresses. */
3390 if (debug_information [first].num_loc_offsets > 0
3391 && debug_information [first].loc_offsets [0] != section->address)
3392 warn (_("Location lists in %s section start at 0x%lx\n"),
3393 section->name, debug_information [first].loc_offsets [0]);
3395 printf (_("Contents of the %s section:\n\n"), section->name);
3396 printf (_(" Offset Begin End Expression\n"));
3398 seen_first_offset = 0;
3399 for (i = first; i < num_debug_info_entries; i++)
3401 dwarf_vma begin;
3402 dwarf_vma end;
3403 unsigned short length;
3404 unsigned long offset;
3405 unsigned int pointer_size;
3406 unsigned long cu_offset;
3407 unsigned long base_address;
3408 int need_frame_base;
3409 int has_frame_base;
3411 pointer_size = debug_information [i].pointer_size;
3412 cu_offset = debug_information [i].cu_offset;
3414 for (j = 0; j < debug_information [i].num_loc_offsets; j++)
3416 has_frame_base = debug_information [i].have_frame_base [j];
3417 /* DWARF sections under Mach-O have non-zero addresses. */
3418 offset = debug_information [i].loc_offsets [j] - section->address;
3419 next = section_begin + offset;
3420 base_address = debug_information [i].base_address;
3422 if (!seen_first_offset)
3423 seen_first_offset = 1;
3424 else
3426 if (start < next)
3427 warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
3428 (unsigned long) (start - section_begin),
3429 (unsigned long) (next - section_begin));
3430 else if (start > next)
3431 warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
3432 (unsigned long) (start - section_begin),
3433 (unsigned long) (next - section_begin));
3435 start = next;
3437 if (offset >= bytes)
3439 warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"),
3440 offset);
3441 continue;
3444 while (1)
3446 if (start + 2 * pointer_size > section_end)
3448 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
3449 offset);
3450 break;
3453 /* Note: we use sign extension here in order to be sure that
3454 we can detect the -1 escape value. Sign extension into the
3455 top 32 bits of a 32-bit address will not affect the values
3456 that we display since we always show hex values, and always
3457 the bottom 32-bits. */
3458 begin = byte_get_signed (start, pointer_size);
3459 start += pointer_size;
3460 end = byte_get_signed (start, pointer_size);
3461 start += pointer_size;
3463 printf (" %8.8lx ", offset);
3465 if (begin == 0 && end == 0)
3467 printf (_("<End of list>\n"));
3468 break;
3471 /* Check base address specifiers. */
3472 if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1)
3474 base_address = end;
3475 print_dwarf_vma (begin, pointer_size);
3476 print_dwarf_vma (end, pointer_size);
3477 printf (_("(base address)\n"));
3478 continue;
3481 if (start + 2 > section_end)
3483 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
3484 offset);
3485 break;
3488 length = byte_get (start, 2);
3489 start += 2;
3491 if (start + length > section_end)
3493 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
3494 offset);
3495 break;
3498 print_dwarf_vma (begin + base_address, pointer_size);
3499 print_dwarf_vma (end + base_address, pointer_size);
3501 putchar ('(');
3502 need_frame_base = decode_location_expression (start,
3503 pointer_size,
3504 length,
3505 cu_offset, section);
3506 putchar (')');
3508 if (need_frame_base && !has_frame_base)
3509 printf (_(" [without DW_AT_frame_base]"));
3511 if (begin == end)
3512 fputs (_(" (start == end)"), stdout);
3513 else if (begin > end)
3514 fputs (_(" (start > end)"), stdout);
3516 putchar ('\n');
3518 start += length;
3523 if (start < section_end)
3524 warn (_("There are %ld unused bytes at the end of section %s\n"),
3525 (long) (section_end - start), section->name);
3526 putchar ('\n');
3527 return 1;
3530 static int
3531 display_debug_str (struct dwarf_section *section,
3532 void *file ATTRIBUTE_UNUSED)
3534 unsigned char *start = section->start;
3535 unsigned long bytes = section->size;
3536 dwarf_vma addr = section->address;
3538 if (bytes == 0)
3540 printf (_("\nThe %s section is empty.\n"), section->name);
3541 return 0;
3544 printf (_("Contents of the %s section:\n\n"), section->name);
3546 while (bytes)
3548 int j;
3549 int k;
3550 int lbytes;
3552 lbytes = (bytes > 16 ? 16 : bytes);
3554 printf (" 0x%8.8lx ", (unsigned long) addr);
3556 for (j = 0; j < 16; j++)
3558 if (j < lbytes)
3559 printf ("%2.2x", start[j]);
3560 else
3561 printf (" ");
3563 if ((j & 3) == 3)
3564 printf (" ");
3567 for (j = 0; j < lbytes; j++)
3569 k = start[j];
3570 if (k >= ' ' && k < 0x80)
3571 printf ("%c", k);
3572 else
3573 printf (".");
3576 putchar ('\n');
3578 start += lbytes;
3579 addr += lbytes;
3580 bytes -= lbytes;
3583 putchar ('\n');
3585 return 1;
3588 static int
3589 display_debug_info (struct dwarf_section *section, void *file)
3591 return process_debug_info (section, file, 0, 0);
3594 static int
3595 display_debug_types (struct dwarf_section *section, void *file)
3597 return process_debug_info (section, file, 0, 1);
3600 static int
3601 display_debug_aranges (struct dwarf_section *section,
3602 void *file ATTRIBUTE_UNUSED)
3604 unsigned char *start = section->start;
3605 unsigned char *end = start + section->size;
3607 printf (_("Contents of the %s section:\n\n"), section->name);
3609 /* It does not matter if this load fails,
3610 we test for that later on. */
3611 load_debug_info (file);
3613 while (start < end)
3615 unsigned char *hdrptr;
3616 DWARF2_Internal_ARange arange;
3617 unsigned char *addr_ranges;
3618 dwarf_vma length;
3619 dwarf_vma address;
3620 unsigned char address_size;
3621 int excess;
3622 int offset_size;
3623 int initial_length_size;
3625 hdrptr = start;
3627 arange.ar_length = byte_get (hdrptr, 4);
3628 hdrptr += 4;
3630 if (arange.ar_length == 0xffffffff)
3632 arange.ar_length = byte_get (hdrptr, 8);
3633 hdrptr += 8;
3634 offset_size = 8;
3635 initial_length_size = 12;
3637 else
3639 offset_size = 4;
3640 initial_length_size = 4;
3643 arange.ar_version = byte_get (hdrptr, 2);
3644 hdrptr += 2;
3646 arange.ar_info_offset = byte_get (hdrptr, offset_size);
3647 hdrptr += offset_size;
3649 if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
3650 && num_debug_info_entries > 0
3651 && find_debug_info_for_offset (arange.ar_info_offset) == NULL)
3652 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
3653 arange.ar_info_offset, section->name);
3655 arange.ar_pointer_size = byte_get (hdrptr, 1);
3656 hdrptr += 1;
3658 arange.ar_segment_size = byte_get (hdrptr, 1);
3659 hdrptr += 1;
3661 if (arange.ar_version != 2 && arange.ar_version != 3)
3663 warn (_("Only DWARF 2 and 3 aranges are currently supported.\n"));
3664 break;
3667 printf (_(" Length: %ld\n"), arange.ar_length);
3668 printf (_(" Version: %d\n"), arange.ar_version);
3669 printf (_(" Offset into .debug_info: 0x%lx\n"), arange.ar_info_offset);
3670 printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size);
3671 printf (_(" Segment Size: %d\n"), arange.ar_segment_size);
3673 address_size = arange.ar_pointer_size + arange.ar_segment_size;
3675 /* The DWARF spec does not require that the address size be a power
3676 of two, but we do. This will have to change if we ever encounter
3677 an uneven architecture. */
3678 if ((address_size & (address_size - 1)) != 0)
3680 warn (_("Pointer size + Segment size is not a power of two.\n"));
3681 break;
3684 if (address_size > 4)
3685 printf (_("\n Address Length\n"));
3686 else
3687 printf (_("\n Address Length\n"));
3689 addr_ranges = hdrptr;
3691 /* Must pad to an alignment boundary that is twice the address size. */
3692 excess = (hdrptr - start) % (2 * address_size);
3693 if (excess)
3694 addr_ranges += (2 * address_size) - excess;
3696 start += arange.ar_length + initial_length_size;
3698 while (addr_ranges + 2 * address_size <= start)
3700 address = byte_get (addr_ranges, address_size);
3702 addr_ranges += address_size;
3704 length = byte_get (addr_ranges, address_size);
3706 addr_ranges += address_size;
3708 printf (" ");
3709 print_dwarf_vma (address, address_size);
3710 print_dwarf_vma (length, address_size);
3711 putchar ('\n');
3715 printf ("\n");
3717 return 1;
3720 /* Each debug_information[x].range_lists[y] gets this representation for
3721 sorting purposes. */
3723 struct range_entry
3725 /* The debug_information[x].range_lists[y] value. */
3726 unsigned long ranges_offset;
3728 /* Original debug_information to find parameters of the data. */
3729 debug_info *debug_info_p;
3732 /* Sort struct range_entry in ascending order of its RANGES_OFFSET. */
3734 static int
3735 range_entry_compar (const void *ap, const void *bp)
3737 const struct range_entry *a_re = (const struct range_entry *) ap;
3738 const struct range_entry *b_re = (const struct range_entry *) bp;
3739 const unsigned long a = a_re->ranges_offset;
3740 const unsigned long b = b_re->ranges_offset;
3742 return (a > b) - (b > a);
3745 static int
3746 display_debug_ranges (struct dwarf_section *section,
3747 void *file ATTRIBUTE_UNUSED)
3749 unsigned char *start = section->start;
3750 unsigned long bytes;
3751 unsigned char *section_begin = start;
3752 unsigned int num_range_list, i;
3753 struct range_entry *range_entries, *range_entry_fill;
3755 bytes = section->size;
3757 if (bytes == 0)
3759 printf (_("\nThe %s section is empty.\n"), section->name);
3760 return 0;
3763 if (load_debug_info (file) == 0)
3765 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
3766 section->name);
3767 return 0;
3770 num_range_list = 0;
3771 for (i = 0; i < num_debug_info_entries; i++)
3772 num_range_list += debug_information [i].num_range_lists;
3774 if (num_range_list == 0)
3775 error (_("No range lists in .debug_info section!\n"));
3777 range_entries = (struct range_entry *)
3778 xmalloc (sizeof (*range_entries) * num_range_list);
3779 range_entry_fill = range_entries;
3781 for (i = 0; i < num_debug_info_entries; i++)
3783 debug_info *debug_info_p = &debug_information[i];
3784 unsigned int j;
3786 for (j = 0; j < debug_info_p->num_range_lists; j++)
3788 range_entry_fill->ranges_offset = debug_info_p->range_lists[j];
3789 range_entry_fill->debug_info_p = debug_info_p;
3790 range_entry_fill++;
3794 qsort (range_entries, num_range_list, sizeof (*range_entries),
3795 range_entry_compar);
3797 /* DWARF sections under Mach-O have non-zero addresses. */
3798 if (range_entries[0].ranges_offset != section->address)
3799 warn (_("Range lists in %s section start at 0x%lx\n"),
3800 section->name, range_entries[0].ranges_offset);
3802 printf (_("Contents of the %s section:\n\n"), section->name);
3803 printf (_(" Offset Begin End\n"));
3805 for (i = 0; i < num_range_list; i++)
3807 struct range_entry *range_entry = &range_entries[i];
3808 debug_info *debug_info_p = range_entry->debug_info_p;
3809 unsigned int pointer_size;
3810 unsigned long offset;
3811 unsigned char *next;
3812 unsigned long base_address;
3814 pointer_size = debug_info_p->pointer_size;
3816 /* DWARF sections under Mach-O have non-zero addresses. */
3817 offset = range_entry->ranges_offset - section->address;
3818 next = section_begin + offset;
3819 base_address = debug_info_p->base_address;
3821 if (i > 0)
3823 if (start < next)
3824 warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
3825 (unsigned long) (start - section_begin),
3826 (unsigned long) (next - section_begin), section->name);
3827 else if (start > next)
3828 warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
3829 (unsigned long) (start - section_begin),
3830 (unsigned long) (next - section_begin), section->name);
3832 start = next;
3834 while (1)
3836 dwarf_vma begin;
3837 dwarf_vma end;
3839 /* Note: we use sign extension here in order to be sure that
3840 we can detect the -1 escape value. Sign extension into the
3841 top 32 bits of a 32-bit address will not affect the values
3842 that we display since we always show hex values, and always
3843 the bottom 32-bits. */
3844 begin = byte_get_signed (start, pointer_size);
3845 start += pointer_size;
3846 end = byte_get_signed (start, pointer_size);
3847 start += pointer_size;
3849 printf (" %8.8lx ", offset);
3851 if (begin == 0 && end == 0)
3853 printf (_("<End of list>\n"));
3854 break;
3857 /* Check base address specifiers. */
3858 if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1)
3860 base_address = end;
3861 print_dwarf_vma (begin, pointer_size);
3862 print_dwarf_vma (end, pointer_size);
3863 printf ("(base address)\n");
3864 continue;
3867 print_dwarf_vma (begin + base_address, pointer_size);
3868 print_dwarf_vma (end + base_address, pointer_size);
3870 if (begin == end)
3871 fputs (_("(start == end)"), stdout);
3872 else if (begin > end)
3873 fputs (_("(start > end)"), stdout);
3875 putchar ('\n');
3878 putchar ('\n');
3880 free (range_entries);
3882 return 1;
3885 typedef struct Frame_Chunk
3887 struct Frame_Chunk *next;
3888 unsigned char *chunk_start;
3889 int ncols;
3890 /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */
3891 short int *col_type;
3892 int *col_offset;
3893 char *augmentation;
3894 unsigned int code_factor;
3895 int data_factor;
3896 unsigned long pc_begin;
3897 unsigned long pc_range;
3898 int cfa_reg;
3899 int cfa_offset;
3900 int ra;
3901 unsigned char fde_encoding;
3902 unsigned char cfa_exp;
3903 unsigned char ptr_size;
3904 unsigned char segment_size;
3906 Frame_Chunk;
3908 static const char *const *dwarf_regnames;
3909 static unsigned int dwarf_regnames_count;
3911 /* A marker for a col_type that means this column was never referenced
3912 in the frame info. */
3913 #define DW_CFA_unreferenced (-1)
3915 /* Return 0 if not more space is needed, 1 if more space is needed,
3916 -1 for invalid reg. */
3918 static int
3919 frame_need_space (Frame_Chunk *fc, unsigned int reg)
3921 int prev = fc->ncols;
3923 if (reg < (unsigned int) fc->ncols)
3924 return 0;
3926 if (dwarf_regnames_count
3927 && reg > dwarf_regnames_count)
3928 return -1;
3930 fc->ncols = reg + 1;
3931 fc->col_type = (short int *) xcrealloc (fc->col_type, fc->ncols,
3932 sizeof (short int));
3933 fc->col_offset = (int *) xcrealloc (fc->col_offset, fc->ncols, sizeof (int));
3935 while (prev < fc->ncols)
3937 fc->col_type[prev] = DW_CFA_unreferenced;
3938 fc->col_offset[prev] = 0;
3939 prev++;
3941 return 1;
3944 static const char *const dwarf_regnames_i386[] =
3946 "eax", "ecx", "edx", "ebx",
3947 "esp", "ebp", "esi", "edi",
3948 "eip", "eflags", NULL,
3949 "st0", "st1", "st2", "st3",
3950 "st4", "st5", "st6", "st7",
3951 NULL, NULL,
3952 "xmm0", "xmm1", "xmm2", "xmm3",
3953 "xmm4", "xmm5", "xmm6", "xmm7",
3954 "mm0", "mm1", "mm2", "mm3",
3955 "mm4", "mm5", "mm6", "mm7",
3956 "fcw", "fsw", "mxcsr",
3957 "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL,
3958 "tr", "ldtr"
3961 static const char *const dwarf_regnames_x86_64[] =
3963 "rax", "rdx", "rcx", "rbx",
3964 "rsi", "rdi", "rbp", "rsp",
3965 "r8", "r9", "r10", "r11",
3966 "r12", "r13", "r14", "r15",
3967 "rip",
3968 "xmm0", "xmm1", "xmm2", "xmm3",
3969 "xmm4", "xmm5", "xmm6", "xmm7",
3970 "xmm8", "xmm9", "xmm10", "xmm11",
3971 "xmm12", "xmm13", "xmm14", "xmm15",
3972 "st0", "st1", "st2", "st3",
3973 "st4", "st5", "st6", "st7",
3974 "mm0", "mm1", "mm2", "mm3",
3975 "mm4", "mm5", "mm6", "mm7",
3976 "rflags",
3977 "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL,
3978 "fs.base", "gs.base", NULL, NULL,
3979 "tr", "ldtr",
3980 "mxcsr", "fcw", "fsw"
3983 void
3984 init_dwarf_regnames (unsigned int e_machine)
3986 switch (e_machine)
3988 case EM_386:
3989 case EM_486:
3990 dwarf_regnames = dwarf_regnames_i386;
3991 dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386);
3992 break;
3994 case EM_X86_64:
3995 case EM_L1OM:
3996 dwarf_regnames = dwarf_regnames_x86_64;
3997 dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64);
3998 break;
4000 default:
4001 break;
4005 static const char *
4006 regname (unsigned int regno, int row)
4008 static char reg[64];
4009 if (dwarf_regnames
4010 && regno < dwarf_regnames_count
4011 && dwarf_regnames [regno] != NULL)
4013 if (row)
4014 return dwarf_regnames [regno];
4015 snprintf (reg, sizeof (reg), "r%d (%s)", regno,
4016 dwarf_regnames [regno]);
4018 else
4019 snprintf (reg, sizeof (reg), "r%d", regno);
4020 return reg;
4023 static void
4024 frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs)
4026 int r;
4027 char tmp[100];
4029 if (*max_regs < fc->ncols)
4030 *max_regs = fc->ncols;
4032 if (*need_col_headers)
4034 static const char *sloc = " LOC";
4036 *need_col_headers = 0;
4038 printf ("%-*s CFA ", eh_addr_size * 2, sloc);
4040 for (r = 0; r < *max_regs; r++)
4041 if (fc->col_type[r] != DW_CFA_unreferenced)
4043 if (r == fc->ra)
4044 printf ("ra ");
4045 else
4046 printf ("%-5s ", regname (r, 1));
4049 printf ("\n");
4052 printf ("%0*lx ", eh_addr_size * 2, fc->pc_begin);
4053 if (fc->cfa_exp)
4054 strcpy (tmp, "exp");
4055 else
4056 sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), fc->cfa_offset);
4057 printf ("%-8s ", tmp);
4059 for (r = 0; r < fc->ncols; r++)
4061 if (fc->col_type[r] != DW_CFA_unreferenced)
4063 switch (fc->col_type[r])
4065 case DW_CFA_undefined:
4066 strcpy (tmp, "u");
4067 break;
4068 case DW_CFA_same_value:
4069 strcpy (tmp, "s");
4070 break;
4071 case DW_CFA_offset:
4072 sprintf (tmp, "c%+d", fc->col_offset[r]);
4073 break;
4074 case DW_CFA_val_offset:
4075 sprintf (tmp, "v%+d", fc->col_offset[r]);
4076 break;
4077 case DW_CFA_register:
4078 sprintf (tmp, "%s", regname (fc->col_offset[r], 0));
4079 break;
4080 case DW_CFA_expression:
4081 strcpy (tmp, "exp");
4082 break;
4083 case DW_CFA_val_expression:
4084 strcpy (tmp, "vexp");
4085 break;
4086 default:
4087 strcpy (tmp, "n/a");
4088 break;
4090 printf ("%-5s ", tmp);
4093 printf ("\n");
4096 #define GET(N) byte_get (start, N); start += N
4097 #define LEB() read_leb128 (start, & length_return, 0); start += length_return
4098 #define SLEB() read_leb128 (start, & length_return, 1); start += length_return
4100 static int
4101 display_debug_frames (struct dwarf_section *section,
4102 void *file ATTRIBUTE_UNUSED)
4104 unsigned char *start = section->start;
4105 unsigned char *end = start + section->size;
4106 unsigned char *section_start = start;
4107 Frame_Chunk *chunks = 0;
4108 Frame_Chunk *remembered_state = 0;
4109 Frame_Chunk *rs;
4110 int is_eh = strcmp (section->name, ".eh_frame") == 0;
4111 unsigned int length_return;
4112 int max_regs = 0;
4113 const char *bad_reg = _("bad register: ");
4114 int saved_eh_addr_size = eh_addr_size;
4116 printf (_("Contents of the %s section:\n"), section->name);
4118 while (start < end)
4120 unsigned char *saved_start;
4121 unsigned char *block_end;
4122 unsigned long length;
4123 unsigned long cie_id;
4124 Frame_Chunk *fc;
4125 Frame_Chunk *cie;
4126 int need_col_headers = 1;
4127 unsigned char *augmentation_data = NULL;
4128 unsigned long augmentation_data_len = 0;
4129 int encoded_ptr_size = saved_eh_addr_size;
4130 int offset_size;
4131 int initial_length_size;
4133 saved_start = start;
4134 length = byte_get (start, 4); start += 4;
4136 if (length == 0)
4138 printf ("\n%08lx ZERO terminator\n\n",
4139 (unsigned long)(saved_start - section_start));
4140 continue;
4143 if (length == 0xffffffff)
4145 length = byte_get (start, 8);
4146 start += 8;
4147 offset_size = 8;
4148 initial_length_size = 12;
4150 else
4152 offset_size = 4;
4153 initial_length_size = 4;
4156 block_end = saved_start + length + initial_length_size;
4157 if (block_end > end)
4159 warn ("Invalid length %#08lx in FDE at %#08lx\n",
4160 length, (unsigned long)(saved_start - section_start));
4161 block_end = end;
4163 cie_id = byte_get (start, offset_size); start += offset_size;
4165 if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID))
4167 int version;
4169 fc = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk));
4170 memset (fc, 0, sizeof (Frame_Chunk));
4172 fc->next = chunks;
4173 chunks = fc;
4174 fc->chunk_start = saved_start;
4175 fc->ncols = 0;
4176 fc->col_type = (short int *) xmalloc (sizeof (short int));
4177 fc->col_offset = (int *) xmalloc (sizeof (int));
4178 frame_need_space (fc, max_regs - 1);
4180 version = *start++;
4182 fc->augmentation = (char *) start;
4183 start = (unsigned char *) strchr ((char *) start, '\0') + 1;
4185 if (strcmp (fc->augmentation, "eh") == 0)
4186 start += eh_addr_size;
4188 if (version >= 4)
4190 fc->ptr_size = GET (1);
4191 fc->segment_size = GET (1);
4192 eh_addr_size = fc->ptr_size;
4194 else
4196 fc->ptr_size = eh_addr_size;
4197 fc->segment_size = 0;
4199 fc->code_factor = LEB ();
4200 fc->data_factor = SLEB ();
4201 if (version == 1)
4203 fc->ra = GET (1);
4205 else
4207 fc->ra = LEB ();
4210 if (fc->augmentation[0] == 'z')
4212 augmentation_data_len = LEB ();
4213 augmentation_data = start;
4214 start += augmentation_data_len;
4216 cie = fc;
4218 if (do_debug_frames_interp)
4219 printf ("\n%08lx %08lx %08lx CIE \"%s\" cf=%d df=%d ra=%d\n",
4220 (unsigned long)(saved_start - section_start), length, cie_id,
4221 fc->augmentation, fc->code_factor, fc->data_factor,
4222 fc->ra);
4223 else
4225 printf ("\n%08lx %08lx %08lx CIE\n",
4226 (unsigned long)(saved_start - section_start), length, cie_id);
4227 printf (" Version: %d\n", version);
4228 printf (" Augmentation: \"%s\"\n", fc->augmentation);
4229 if (version >= 4)
4231 printf (" Pointer Size: %u\n", fc->ptr_size);
4232 printf (" Segment Size: %u\n", fc->segment_size);
4234 printf (" Code alignment factor: %u\n", fc->code_factor);
4235 printf (" Data alignment factor: %d\n", fc->data_factor);
4236 printf (" Return address column: %d\n", fc->ra);
4238 if (augmentation_data_len)
4240 unsigned long i;
4241 printf (" Augmentation data: ");
4242 for (i = 0; i < augmentation_data_len; ++i)
4243 printf (" %02x", augmentation_data[i]);
4244 putchar ('\n');
4246 putchar ('\n');
4249 if (augmentation_data_len)
4251 unsigned char *p, *q;
4252 p = (unsigned char *) fc->augmentation + 1;
4253 q = augmentation_data;
4255 while (1)
4257 if (*p == 'L')
4258 q++;
4259 else if (*p == 'P')
4260 q += 1 + size_of_encoded_value (*q);
4261 else if (*p == 'R')
4262 fc->fde_encoding = *q++;
4263 else if (*p == 'S')
4265 else
4266 break;
4267 p++;
4270 if (fc->fde_encoding)
4271 encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
4274 frame_need_space (fc, fc->ra);
4276 else
4278 unsigned char *look_for;
4279 static Frame_Chunk fde_fc;
4280 unsigned long segment_selector;
4282 fc = & fde_fc;
4283 memset (fc, 0, sizeof (Frame_Chunk));
4285 look_for = is_eh ? start - 4 - cie_id : section_start + cie_id;
4287 for (cie = chunks; cie ; cie = cie->next)
4288 if (cie->chunk_start == look_for)
4289 break;
4291 if (!cie)
4293 warn ("Invalid CIE pointer %#08lx in FDE at %#08lx\n",
4294 cie_id, (unsigned long)(saved_start - section_start));
4295 fc->ncols = 0;
4296 fc->col_type = (short int *) xmalloc (sizeof (short int));
4297 fc->col_offset = (int *) xmalloc (sizeof (int));
4298 frame_need_space (fc, max_regs - 1);
4299 cie = fc;
4300 fc->augmentation = "";
4301 fc->fde_encoding = 0;
4302 fc->ptr_size = eh_addr_size;
4303 fc->segment_size = 0;
4305 else
4307 fc->ncols = cie->ncols;
4308 fc->col_type = (short int *) xcmalloc (fc->ncols, sizeof (short int));
4309 fc->col_offset = (int *) xcmalloc (fc->ncols, sizeof (int));
4310 memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int));
4311 memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int));
4312 fc->augmentation = cie->augmentation;
4313 fc->ptr_size = cie->ptr_size;
4314 eh_addr_size = cie->ptr_size;
4315 fc->segment_size = cie->segment_size;
4316 fc->code_factor = cie->code_factor;
4317 fc->data_factor = cie->data_factor;
4318 fc->cfa_reg = cie->cfa_reg;
4319 fc->cfa_offset = cie->cfa_offset;
4320 fc->ra = cie->ra;
4321 frame_need_space (fc, max_regs - 1);
4322 fc->fde_encoding = cie->fde_encoding;
4325 if (fc->fde_encoding)
4326 encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
4328 segment_selector = 0;
4329 if (fc->segment_size)
4331 segment_selector = byte_get (start, fc->segment_size);
4332 start += fc->segment_size;
4334 fc->pc_begin = get_encoded_value (start, fc->fde_encoding);
4335 if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel)
4336 fc->pc_begin += section->address + (start - section_start);
4337 start += encoded_ptr_size;
4338 fc->pc_range = byte_get (start, encoded_ptr_size);
4339 start += encoded_ptr_size;
4341 if (cie->augmentation[0] == 'z')
4343 augmentation_data_len = LEB ();
4344 augmentation_data = start;
4345 start += augmentation_data_len;
4348 printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=",
4349 (unsigned long)(saved_start - section_start), length, cie_id,
4350 (unsigned long)(cie->chunk_start - section_start));
4351 if (fc->segment_size)
4352 printf ("%04lx:", segment_selector);
4353 printf ("%08lx..%08lx\n", fc->pc_begin, fc->pc_begin + fc->pc_range);
4354 if (! do_debug_frames_interp && augmentation_data_len)
4356 unsigned long i;
4358 printf (" Augmentation data: ");
4359 for (i = 0; i < augmentation_data_len; ++i)
4360 printf (" %02x", augmentation_data[i]);
4361 putchar ('\n');
4362 putchar ('\n');
4366 /* At this point, fc is the current chunk, cie (if any) is set, and
4367 we're about to interpret instructions for the chunk. */
4368 /* ??? At present we need to do this always, since this sizes the
4369 fc->col_type and fc->col_offset arrays, which we write into always.
4370 We should probably split the interpreted and non-interpreted bits
4371 into two different routines, since there's so much that doesn't
4372 really overlap between them. */
4373 if (1 || do_debug_frames_interp)
4375 /* Start by making a pass over the chunk, allocating storage
4376 and taking note of what registers are used. */
4377 unsigned char *tmp = start;
4379 while (start < block_end)
4381 unsigned op, opa;
4382 unsigned long reg, temp;
4384 op = *start++;
4385 opa = op & 0x3f;
4386 if (op & 0xc0)
4387 op &= 0xc0;
4389 /* Warning: if you add any more cases to this switch, be
4390 sure to add them to the corresponding switch below. */
4391 switch (op)
4393 case DW_CFA_advance_loc:
4394 break;
4395 case DW_CFA_offset:
4396 LEB ();
4397 if (frame_need_space (fc, opa) >= 0)
4398 fc->col_type[opa] = DW_CFA_undefined;
4399 break;
4400 case DW_CFA_restore:
4401 if (frame_need_space (fc, opa) >= 0)
4402 fc->col_type[opa] = DW_CFA_undefined;
4403 break;
4404 case DW_CFA_set_loc:
4405 start += encoded_ptr_size;
4406 break;
4407 case DW_CFA_advance_loc1:
4408 start += 1;
4409 break;
4410 case DW_CFA_advance_loc2:
4411 start += 2;
4412 break;
4413 case DW_CFA_advance_loc4:
4414 start += 4;
4415 break;
4416 case DW_CFA_offset_extended:
4417 case DW_CFA_val_offset:
4418 reg = LEB (); LEB ();
4419 if (frame_need_space (fc, reg) >= 0)
4420 fc->col_type[reg] = DW_CFA_undefined;
4421 break;
4422 case DW_CFA_restore_extended:
4423 reg = LEB ();
4424 frame_need_space (fc, reg);
4425 if (frame_need_space (fc, reg) >= 0)
4426 fc->col_type[reg] = DW_CFA_undefined;
4427 break;
4428 case DW_CFA_undefined:
4429 reg = LEB ();
4430 if (frame_need_space (fc, reg) >= 0)
4431 fc->col_type[reg] = DW_CFA_undefined;
4432 break;
4433 case DW_CFA_same_value:
4434 reg = LEB ();
4435 if (frame_need_space (fc, reg) >= 0)
4436 fc->col_type[reg] = DW_CFA_undefined;
4437 break;
4438 case DW_CFA_register:
4439 reg = LEB (); LEB ();
4440 if (frame_need_space (fc, reg) >= 0)
4441 fc->col_type[reg] = DW_CFA_undefined;
4442 break;
4443 case DW_CFA_def_cfa:
4444 LEB (); LEB ();
4445 break;
4446 case DW_CFA_def_cfa_register:
4447 LEB ();
4448 break;
4449 case DW_CFA_def_cfa_offset:
4450 LEB ();
4451 break;
4452 case DW_CFA_def_cfa_expression:
4453 temp = LEB ();
4454 start += temp;
4455 break;
4456 case DW_CFA_expression:
4457 case DW_CFA_val_expression:
4458 reg = LEB ();
4459 temp = LEB ();
4460 start += temp;
4461 if (frame_need_space (fc, reg) >= 0)
4462 fc->col_type[reg] = DW_CFA_undefined;
4463 break;
4464 case DW_CFA_offset_extended_sf:
4465 case DW_CFA_val_offset_sf:
4466 reg = LEB (); SLEB ();
4467 if (frame_need_space (fc, reg) >= 0)
4468 fc->col_type[reg] = DW_CFA_undefined;
4469 break;
4470 case DW_CFA_def_cfa_sf:
4471 LEB (); SLEB ();
4472 break;
4473 case DW_CFA_def_cfa_offset_sf:
4474 SLEB ();
4475 break;
4476 case DW_CFA_MIPS_advance_loc8:
4477 start += 8;
4478 break;
4479 case DW_CFA_GNU_args_size:
4480 LEB ();
4481 break;
4482 case DW_CFA_GNU_negative_offset_extended:
4483 reg = LEB (); LEB ();
4484 if (frame_need_space (fc, reg) >= 0)
4485 fc->col_type[reg] = DW_CFA_undefined;
4486 break;
4487 default:
4488 break;
4491 start = tmp;
4494 /* Now we know what registers are used, make a second pass over
4495 the chunk, this time actually printing out the info. */
4497 while (start < block_end)
4499 unsigned op, opa;
4500 unsigned long ul, reg, roffs;
4501 long l, ofs;
4502 dwarf_vma vma;
4503 const char *reg_prefix = "";
4505 op = *start++;
4506 opa = op & 0x3f;
4507 if (op & 0xc0)
4508 op &= 0xc0;
4510 /* Warning: if you add any more cases to this switch, be
4511 sure to add them to the corresponding switch above. */
4512 switch (op)
4514 case DW_CFA_advance_loc:
4515 if (do_debug_frames_interp)
4516 frame_display_row (fc, &need_col_headers, &max_regs);
4517 else
4518 printf (" DW_CFA_advance_loc: %d to %08lx\n",
4519 opa * fc->code_factor,
4520 fc->pc_begin + opa * fc->code_factor);
4521 fc->pc_begin += opa * fc->code_factor;
4522 break;
4524 case DW_CFA_offset:
4525 roffs = LEB ();
4526 if (opa >= (unsigned int) fc->ncols)
4527 reg_prefix = bad_reg;
4528 if (! do_debug_frames_interp || *reg_prefix != '\0')
4529 printf (" DW_CFA_offset: %s%s at cfa%+ld\n",
4530 reg_prefix, regname (opa, 0),
4531 roffs * fc->data_factor);
4532 if (*reg_prefix == '\0')
4534 fc->col_type[opa] = DW_CFA_offset;
4535 fc->col_offset[opa] = roffs * fc->data_factor;
4537 break;
4539 case DW_CFA_restore:
4540 if (opa >= (unsigned int) cie->ncols
4541 || opa >= (unsigned int) fc->ncols)
4542 reg_prefix = bad_reg;
4543 if (! do_debug_frames_interp || *reg_prefix != '\0')
4544 printf (" DW_CFA_restore: %s%s\n",
4545 reg_prefix, regname (opa, 0));
4546 if (*reg_prefix == '\0')
4548 fc->col_type[opa] = cie->col_type[opa];
4549 fc->col_offset[opa] = cie->col_offset[opa];
4551 break;
4553 case DW_CFA_set_loc:
4554 vma = get_encoded_value (start, fc->fde_encoding);
4555 if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel)
4556 vma += section->address + (start - section_start);
4557 start += encoded_ptr_size;
4558 if (do_debug_frames_interp)
4559 frame_display_row (fc, &need_col_headers, &max_regs);
4560 else
4561 printf (" DW_CFA_set_loc: %08lx\n", (unsigned long)vma);
4562 fc->pc_begin = vma;
4563 break;
4565 case DW_CFA_advance_loc1:
4566 ofs = byte_get (start, 1); start += 1;
4567 if (do_debug_frames_interp)
4568 frame_display_row (fc, &need_col_headers, &max_regs);
4569 else
4570 printf (" DW_CFA_advance_loc1: %ld to %08lx\n",
4571 ofs * fc->code_factor,
4572 fc->pc_begin + ofs * fc->code_factor);
4573 fc->pc_begin += ofs * fc->code_factor;
4574 break;
4576 case DW_CFA_advance_loc2:
4577 ofs = byte_get (start, 2); start += 2;
4578 if (do_debug_frames_interp)
4579 frame_display_row (fc, &need_col_headers, &max_regs);
4580 else
4581 printf (" DW_CFA_advance_loc2: %ld to %08lx\n",
4582 ofs * fc->code_factor,
4583 fc->pc_begin + ofs * fc->code_factor);
4584 fc->pc_begin += ofs * fc->code_factor;
4585 break;
4587 case DW_CFA_advance_loc4:
4588 ofs = byte_get (start, 4); start += 4;
4589 if (do_debug_frames_interp)
4590 frame_display_row (fc, &need_col_headers, &max_regs);
4591 else
4592 printf (" DW_CFA_advance_loc4: %ld to %08lx\n",
4593 ofs * fc->code_factor,
4594 fc->pc_begin + ofs * fc->code_factor);
4595 fc->pc_begin += ofs * fc->code_factor;
4596 break;
4598 case DW_CFA_offset_extended:
4599 reg = LEB ();
4600 roffs = LEB ();
4601 if (reg >= (unsigned int) fc->ncols)
4602 reg_prefix = bad_reg;
4603 if (! do_debug_frames_interp || *reg_prefix != '\0')
4604 printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n",
4605 reg_prefix, regname (reg, 0),
4606 roffs * fc->data_factor);
4607 if (*reg_prefix == '\0')
4609 fc->col_type[reg] = DW_CFA_offset;
4610 fc->col_offset[reg] = roffs * fc->data_factor;
4612 break;
4614 case DW_CFA_val_offset:
4615 reg = LEB ();
4616 roffs = LEB ();
4617 if (reg >= (unsigned int) fc->ncols)
4618 reg_prefix = bad_reg;
4619 if (! do_debug_frames_interp || *reg_prefix != '\0')
4620 printf (" DW_CFA_val_offset: %s%s at cfa%+ld\n",
4621 reg_prefix, regname (reg, 0),
4622 roffs * fc->data_factor);
4623 if (*reg_prefix == '\0')
4625 fc->col_type[reg] = DW_CFA_val_offset;
4626 fc->col_offset[reg] = roffs * fc->data_factor;
4628 break;
4630 case DW_CFA_restore_extended:
4631 reg = LEB ();
4632 if (reg >= (unsigned int) cie->ncols
4633 || reg >= (unsigned int) fc->ncols)
4634 reg_prefix = bad_reg;
4635 if (! do_debug_frames_interp || *reg_prefix != '\0')
4636 printf (" DW_CFA_restore_extended: %s%s\n",
4637 reg_prefix, regname (reg, 0));
4638 if (*reg_prefix == '\0')
4640 fc->col_type[reg] = cie->col_type[reg];
4641 fc->col_offset[reg] = cie->col_offset[reg];
4643 break;
4645 case DW_CFA_undefined:
4646 reg = LEB ();
4647 if (reg >= (unsigned int) fc->ncols)
4648 reg_prefix = bad_reg;
4649 if (! do_debug_frames_interp || *reg_prefix != '\0')
4650 printf (" DW_CFA_undefined: %s%s\n",
4651 reg_prefix, regname (reg, 0));
4652 if (*reg_prefix == '\0')
4654 fc->col_type[reg] = DW_CFA_undefined;
4655 fc->col_offset[reg] = 0;
4657 break;
4659 case DW_CFA_same_value:
4660 reg = LEB ();
4661 if (reg >= (unsigned int) fc->ncols)
4662 reg_prefix = bad_reg;
4663 if (! do_debug_frames_interp || *reg_prefix != '\0')
4664 printf (" DW_CFA_same_value: %s%s\n",
4665 reg_prefix, regname (reg, 0));
4666 if (*reg_prefix == '\0')
4668 fc->col_type[reg] = DW_CFA_same_value;
4669 fc->col_offset[reg] = 0;
4671 break;
4673 case DW_CFA_register:
4674 reg = LEB ();
4675 roffs = LEB ();
4676 if (reg >= (unsigned int) fc->ncols)
4677 reg_prefix = bad_reg;
4678 if (! do_debug_frames_interp || *reg_prefix != '\0')
4680 printf (" DW_CFA_register: %s%s in ",
4681 reg_prefix, regname (reg, 0));
4682 puts (regname (roffs, 0));
4684 if (*reg_prefix == '\0')
4686 fc->col_type[reg] = DW_CFA_register;
4687 fc->col_offset[reg] = roffs;
4689 break;
4691 case DW_CFA_remember_state:
4692 if (! do_debug_frames_interp)
4693 printf (" DW_CFA_remember_state\n");
4694 rs = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk));
4695 rs->ncols = fc->ncols;
4696 rs->col_type = (short int *) xcmalloc (rs->ncols,
4697 sizeof (short int));
4698 rs->col_offset = (int *) xcmalloc (rs->ncols, sizeof (int));
4699 memcpy (rs->col_type, fc->col_type, rs->ncols);
4700 memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int));
4701 rs->next = remembered_state;
4702 remembered_state = rs;
4703 break;
4705 case DW_CFA_restore_state:
4706 if (! do_debug_frames_interp)
4707 printf (" DW_CFA_restore_state\n");
4708 rs = remembered_state;
4709 if (rs)
4711 remembered_state = rs->next;
4712 frame_need_space (fc, rs->ncols - 1);
4713 memcpy (fc->col_type, rs->col_type, rs->ncols);
4714 memcpy (fc->col_offset, rs->col_offset,
4715 rs->ncols * sizeof (int));
4716 free (rs->col_type);
4717 free (rs->col_offset);
4718 free (rs);
4720 else if (do_debug_frames_interp)
4721 printf ("Mismatched DW_CFA_restore_state\n");
4722 break;
4724 case DW_CFA_def_cfa:
4725 fc->cfa_reg = LEB ();
4726 fc->cfa_offset = LEB ();
4727 fc->cfa_exp = 0;
4728 if (! do_debug_frames_interp)
4729 printf (" DW_CFA_def_cfa: %s ofs %d\n",
4730 regname (fc->cfa_reg, 0), fc->cfa_offset);
4731 break;
4733 case DW_CFA_def_cfa_register:
4734 fc->cfa_reg = LEB ();
4735 fc->cfa_exp = 0;
4736 if (! do_debug_frames_interp)
4737 printf (" DW_CFA_def_cfa_register: %s\n",
4738 regname (fc->cfa_reg, 0));
4739 break;
4741 case DW_CFA_def_cfa_offset:
4742 fc->cfa_offset = LEB ();
4743 if (! do_debug_frames_interp)
4744 printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset);
4745 break;
4747 case DW_CFA_nop:
4748 if (! do_debug_frames_interp)
4749 printf (" DW_CFA_nop\n");
4750 break;
4752 case DW_CFA_def_cfa_expression:
4753 ul = LEB ();
4754 if (! do_debug_frames_interp)
4756 printf (" DW_CFA_def_cfa_expression (");
4757 decode_location_expression (start, eh_addr_size, ul, 0,
4758 section);
4759 printf (")\n");
4761 fc->cfa_exp = 1;
4762 start += ul;
4763 break;
4765 case DW_CFA_expression:
4766 reg = LEB ();
4767 ul = LEB ();
4768 if (reg >= (unsigned int) fc->ncols)
4769 reg_prefix = bad_reg;
4770 if (! do_debug_frames_interp || *reg_prefix != '\0')
4772 printf (" DW_CFA_expression: %s%s (",
4773 reg_prefix, regname (reg, 0));
4774 decode_location_expression (start, eh_addr_size,
4775 ul, 0, section);
4776 printf (")\n");
4778 if (*reg_prefix == '\0')
4779 fc->col_type[reg] = DW_CFA_expression;
4780 start += ul;
4781 break;
4783 case DW_CFA_val_expression:
4784 reg = LEB ();
4785 ul = LEB ();
4786 if (reg >= (unsigned int) fc->ncols)
4787 reg_prefix = bad_reg;
4788 if (! do_debug_frames_interp || *reg_prefix != '\0')
4790 printf (" DW_CFA_val_expression: %s%s (",
4791 reg_prefix, regname (reg, 0));
4792 decode_location_expression (start, eh_addr_size, ul, 0,
4793 section);
4794 printf (")\n");
4796 if (*reg_prefix == '\0')
4797 fc->col_type[reg] = DW_CFA_val_expression;
4798 start += ul;
4799 break;
4801 case DW_CFA_offset_extended_sf:
4802 reg = LEB ();
4803 l = SLEB ();
4804 if (frame_need_space (fc, reg) < 0)
4805 reg_prefix = bad_reg;
4806 if (! do_debug_frames_interp || *reg_prefix != '\0')
4807 printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n",
4808 reg_prefix, regname (reg, 0),
4809 l * fc->data_factor);
4810 if (*reg_prefix == '\0')
4812 fc->col_type[reg] = DW_CFA_offset;
4813 fc->col_offset[reg] = l * fc->data_factor;
4815 break;
4817 case DW_CFA_val_offset_sf:
4818 reg = LEB ();
4819 l = SLEB ();
4820 if (frame_need_space (fc, reg) < 0)
4821 reg_prefix = bad_reg;
4822 if (! do_debug_frames_interp || *reg_prefix != '\0')
4823 printf (" DW_CFA_val_offset_sf: %s%s at cfa%+ld\n",
4824 reg_prefix, regname (reg, 0),
4825 l * fc->data_factor);
4826 if (*reg_prefix == '\0')
4828 fc->col_type[reg] = DW_CFA_val_offset;
4829 fc->col_offset[reg] = l * fc->data_factor;
4831 break;
4833 case DW_CFA_def_cfa_sf:
4834 fc->cfa_reg = LEB ();
4835 fc->cfa_offset = SLEB ();
4836 fc->cfa_offset = fc->cfa_offset * fc->data_factor;
4837 fc->cfa_exp = 0;
4838 if (! do_debug_frames_interp)
4839 printf (" DW_CFA_def_cfa_sf: %s ofs %d\n",
4840 regname (fc->cfa_reg, 0), fc->cfa_offset);
4841 break;
4843 case DW_CFA_def_cfa_offset_sf:
4844 fc->cfa_offset = SLEB ();
4845 fc->cfa_offset = fc->cfa_offset * fc->data_factor;
4846 if (! do_debug_frames_interp)
4847 printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset);
4848 break;
4850 case DW_CFA_MIPS_advance_loc8:
4851 ofs = byte_get (start, 8); start += 8;
4852 if (do_debug_frames_interp)
4853 frame_display_row (fc, &need_col_headers, &max_regs);
4854 else
4855 printf (" DW_CFA_MIPS_advance_loc8: %ld to %08lx\n",
4856 ofs * fc->code_factor,
4857 fc->pc_begin + ofs * fc->code_factor);
4858 fc->pc_begin += ofs * fc->code_factor;
4859 break;
4861 case DW_CFA_GNU_window_save:
4862 if (! do_debug_frames_interp)
4863 printf (" DW_CFA_GNU_window_save\n");
4864 break;
4866 case DW_CFA_GNU_args_size:
4867 ul = LEB ();
4868 if (! do_debug_frames_interp)
4869 printf (" DW_CFA_GNU_args_size: %ld\n", ul);
4870 break;
4872 case DW_CFA_GNU_negative_offset_extended:
4873 reg = LEB ();
4874 l = - LEB ();
4875 if (frame_need_space (fc, reg) < 0)
4876 reg_prefix = bad_reg;
4877 if (! do_debug_frames_interp || *reg_prefix != '\0')
4878 printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n",
4879 reg_prefix, regname (reg, 0),
4880 l * fc->data_factor);
4881 if (*reg_prefix == '\0')
4883 fc->col_type[reg] = DW_CFA_offset;
4884 fc->col_offset[reg] = l * fc->data_factor;
4886 break;
4888 default:
4889 if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user)
4890 printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op);
4891 else
4892 warn (_("unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op);
4893 start = block_end;
4897 if (do_debug_frames_interp)
4898 frame_display_row (fc, &need_col_headers, &max_regs);
4900 start = block_end;
4901 eh_addr_size = saved_eh_addr_size;
4904 printf ("\n");
4906 return 1;
4909 #undef GET
4910 #undef LEB
4911 #undef SLEB
4913 static int
4914 display_debug_not_supported (struct dwarf_section *section,
4915 void *file ATTRIBUTE_UNUSED)
4917 printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
4918 section->name);
4920 return 1;
4923 void *
4924 cmalloc (size_t nmemb, size_t size)
4926 /* Check for overflow. */
4927 if (nmemb >= ~(size_t) 0 / size)
4928 return NULL;
4929 else
4930 return malloc (nmemb * size);
4933 void *
4934 xcmalloc (size_t nmemb, size_t size)
4936 /* Check for overflow. */
4937 if (nmemb >= ~(size_t) 0 / size)
4938 return NULL;
4939 else
4940 return xmalloc (nmemb * size);
4943 void *
4944 xcrealloc (void *ptr, size_t nmemb, size_t size)
4946 /* Check for overflow. */
4947 if (nmemb >= ~(size_t) 0 / size)
4948 return NULL;
4949 else
4950 return xrealloc (ptr, nmemb * size);
4953 void
4954 error (const char *message, ...)
4956 va_list args;
4958 va_start (args, message);
4959 fprintf (stderr, _("%s: Error: "), program_name);
4960 vfprintf (stderr, message, args);
4961 va_end (args);
4964 void
4965 warn (const char *message, ...)
4967 va_list args;
4969 va_start (args, message);
4970 fprintf (stderr, _("%s: Warning: "), program_name);
4971 vfprintf (stderr, message, args);
4972 va_end (args);
4975 void
4976 free_debug_memory (void)
4978 unsigned int i;
4980 free_abbrevs ();
4982 for (i = 0; i < max; i++)
4983 free_debug_section ((enum dwarf_section_display_enum) i);
4985 if (debug_information != NULL)
4987 if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE)
4989 for (i = 0; i < num_debug_info_entries; i++)
4991 if (!debug_information [i].max_loc_offsets)
4993 free (debug_information [i].loc_offsets);
4994 free (debug_information [i].have_frame_base);
4996 if (!debug_information [i].max_range_lists)
4997 free (debug_information [i].range_lists);
5001 free (debug_information);
5002 debug_information = NULL;
5003 num_debug_info_entries = 0;
5007 void
5008 dwarf_select_sections_by_names (const char *names)
5010 typedef struct
5012 const char * option;
5013 int * variable;
5014 int val;
5016 debug_dump_long_opts;
5018 static const debug_dump_long_opts opts_table [] =
5020 /* Please keep this table alpha- sorted. */
5021 { "Ranges", & do_debug_ranges, 1 },
5022 { "abbrev", & do_debug_abbrevs, 1 },
5023 { "aranges", & do_debug_aranges, 1 },
5024 { "frames", & do_debug_frames, 1 },
5025 { "frames-interp", & do_debug_frames_interp, 1 },
5026 { "info", & do_debug_info, 1 },
5027 { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */
5028 { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW },
5029 { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED },
5030 { "loc", & do_debug_loc, 1 },
5031 { "macro", & do_debug_macinfo, 1 },
5032 { "pubnames", & do_debug_pubnames, 1 },
5033 { "pubtypes", & do_debug_pubtypes, 1 },
5034 /* This entry is for compatability
5035 with earlier versions of readelf. */
5036 { "ranges", & do_debug_aranges, 1 },
5037 { "str", & do_debug_str, 1 },
5038 { NULL, NULL, 0 }
5041 const char *p;
5043 p = names;
5044 while (*p)
5046 const debug_dump_long_opts * entry;
5048 for (entry = opts_table; entry->option; entry++)
5050 size_t len = strlen (entry->option);
5052 if (strncmp (p, entry->option, len) == 0
5053 && (p[len] == ',' || p[len] == '\0'))
5055 * entry->variable |= entry->val;
5057 /* The --debug-dump=frames-interp option also
5058 enables the --debug-dump=frames option. */
5059 if (do_debug_frames_interp)
5060 do_debug_frames = 1;
5062 p += len;
5063 break;
5067 if (entry->option == NULL)
5069 warn (_("Unrecognized debug option '%s'\n"), p);
5070 p = strchr (p, ',');
5071 if (p == NULL)
5072 break;
5075 if (*p == ',')
5076 p++;
5080 void
5081 dwarf_select_sections_by_letters (const char *letters)
5083 unsigned int lindex = 0;
5085 while (letters[lindex])
5086 switch (letters[lindex++])
5088 case 'i':
5089 do_debug_info = 1;
5090 break;
5092 case 'a':
5093 do_debug_abbrevs = 1;
5094 break;
5096 case 'l':
5097 do_debug_lines |= FLAG_DEBUG_LINES_RAW;
5098 break;
5100 case 'L':
5101 do_debug_lines |= FLAG_DEBUG_LINES_DECODED;
5102 break;
5104 case 'p':
5105 do_debug_pubnames = 1;
5106 break;
5108 case 't':
5109 do_debug_pubtypes = 1;
5110 break;
5112 case 'r':
5113 do_debug_aranges = 1;
5114 break;
5116 case 'R':
5117 do_debug_ranges = 1;
5118 break;
5120 case 'F':
5121 do_debug_frames_interp = 1;
5122 case 'f':
5123 do_debug_frames = 1;
5124 break;
5126 case 'm':
5127 do_debug_macinfo = 1;
5128 break;
5130 case 's':
5131 do_debug_str = 1;
5132 break;
5134 case 'o':
5135 do_debug_loc = 1;
5136 break;
5138 default:
5139 warn (_("Unrecognized debug option '%s'\n"), optarg);
5140 break;
5144 void
5145 dwarf_select_sections_all (void)
5147 do_debug_info = 1;
5148 do_debug_abbrevs = 1;
5149 do_debug_lines = FLAG_DEBUG_LINES_RAW;
5150 do_debug_pubnames = 1;
5151 do_debug_pubtypes = 1;
5152 do_debug_aranges = 1;
5153 do_debug_ranges = 1;
5154 do_debug_frames = 1;
5155 do_debug_macinfo = 1;
5156 do_debug_str = 1;
5157 do_debug_loc = 1;
5160 struct dwarf_section_display debug_displays[] =
5162 { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0 },
5163 display_debug_abbrev, &do_debug_abbrevs, 0 },
5164 { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0 },
5165 display_debug_aranges, &do_debug_aranges, 1 },
5166 { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0 },
5167 display_debug_frames, &do_debug_frames, 1 },
5168 { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0 },
5169 display_debug_info, &do_debug_info, 1 },
5170 { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0 },
5171 display_debug_lines, &do_debug_lines, 1 },
5172 { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0 },
5173 display_debug_pubnames, &do_debug_pubnames, 0 },
5174 { { ".eh_frame", "", NULL, NULL, 0, 0 },
5175 display_debug_frames, &do_debug_frames, 1 },
5176 { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0 },
5177 display_debug_macinfo, &do_debug_macinfo, 0 },
5178 { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0 },
5179 display_debug_str, &do_debug_str, 0 },
5180 { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0 },
5181 display_debug_loc, &do_debug_loc, 1 },
5182 { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0 },
5183 display_debug_pubnames, &do_debug_pubtypes, 0 },
5184 { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0 },
5185 display_debug_ranges, &do_debug_ranges, 1 },
5186 { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0 },
5187 display_debug_not_supported, NULL, 0 },
5188 { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0 },
5189 display_debug_not_supported, NULL, 0 },
5190 { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0 },
5191 display_debug_types, &do_debug_info, 1 },
5192 { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0 },
5193 display_debug_not_supported, NULL, 0 }