1 /* dwarf.c -- display DWARF contents of a BFD binary file
2 Copyright 2005, 2006, 2007, 2008
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
23 #include "libiberty.h"
26 #include "elf/common.h"
27 #include "elf/dwarf2.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
47 int do_debug_pubnames;
51 int do_debug_frames_interp;
57 /* Values for do_debug_lines. */
58 #define FLAG_DEBUG_LINES_RAW 1
59 #define FLAG_DEBUG_LINES_DECODED 2
61 dwarf_vma (*byte_get) (unsigned char *, int);
64 byte_get_little_endian (unsigned char *field, int size)
72 return ((unsigned int) (field[0]))
73 | (((unsigned int) (field[1])) << 8);
76 return ((unsigned long) (field[0]))
77 | (((unsigned long) (field[1])) << 8)
78 | (((unsigned long) (field[2])) << 16)
79 | (((unsigned long) (field[3])) << 24);
82 if (sizeof (dwarf_vma) == 8)
83 return ((dwarf_vma) (field[0]))
84 | (((dwarf_vma) (field[1])) << 8)
85 | (((dwarf_vma) (field[2])) << 16)
86 | (((dwarf_vma) (field[3])) << 24)
87 | (((dwarf_vma) (field[4])) << 32)
88 | (((dwarf_vma) (field[5])) << 40)
89 | (((dwarf_vma) (field[6])) << 48)
90 | (((dwarf_vma) (field[7])) << 56);
91 else if (sizeof (dwarf_vma) == 4)
92 /* We want to extract data from an 8 byte wide field and
93 place it into a 4 byte wide field. Since this is a little
94 endian source we can just use the 4 byte extraction code. */
95 return ((unsigned long) (field[0]))
96 | (((unsigned long) (field[1])) << 8)
97 | (((unsigned long) (field[2])) << 16)
98 | (((unsigned long) (field[3])) << 24);
101 error (_("Unhandled data length: %d\n"), size);
107 byte_get_big_endian (unsigned char *field, int size)
115 return ((unsigned int) (field[1])) | (((int) (field[0])) << 8);
118 return ((unsigned long) (field[3]))
119 | (((unsigned long) (field[2])) << 8)
120 | (((unsigned long) (field[1])) << 16)
121 | (((unsigned long) (field[0])) << 24);
124 if (sizeof (dwarf_vma) == 8)
125 return ((dwarf_vma) (field[7]))
126 | (((dwarf_vma) (field[6])) << 8)
127 | (((dwarf_vma) (field[5])) << 16)
128 | (((dwarf_vma) (field[4])) << 24)
129 | (((dwarf_vma) (field[3])) << 32)
130 | (((dwarf_vma) (field[2])) << 40)
131 | (((dwarf_vma) (field[1])) << 48)
132 | (((dwarf_vma) (field[0])) << 56);
133 else if (sizeof (dwarf_vma) == 4)
135 /* Although we are extracing data from an 8 byte wide field,
136 we are returning only 4 bytes of data. */
138 return ((unsigned long) (field[3]))
139 | (((unsigned long) (field[2])) << 8)
140 | (((unsigned long) (field[1])) << 16)
141 | (((unsigned long) (field[0])) << 24);
145 error (_("Unhandled data length: %d\n"), size);
151 byte_get_signed (unsigned char *field, int size)
153 dwarf_vma x = byte_get (field, size);
158 return (x ^ 0x80) - 0x80;
160 return (x ^ 0x8000) - 0x8000;
162 return (x ^ 0x80000000) - 0x80000000;
171 size_of_encoded_value (int encoding)
173 switch (encoding & 0x7)
176 case 0: return eh_addr_size;
184 get_encoded_value (unsigned char *data, int encoding)
186 int size = size_of_encoded_value (encoding);
188 if (encoding & DW_EH_PE_signed)
189 return byte_get_signed (data, size);
191 return byte_get (data, size);
194 /* Print a dwarf_vma value (typically an address, offset or length) in
195 hexadecimal format, followed by a space. The length of the value (and
196 hence the precision displayed) is determined by the byte_size parameter. */
199 print_dwarf_vma (dwarf_vma val, unsigned byte_size)
201 static char buff[18];
203 /* Printf does not have a way of specifiying a maximum field width for an
204 integer value, so we print the full value into a buffer and then select
205 the precision we need. */
206 #if __STDC_VERSION__ >= 199901L || (defined(__GNUC__) && __GNUC__ >= 2)
208 snprintf (buff, sizeof (buff), "%16.16llx ", val);
210 snprintf (buff, sizeof (buff), "%016I64x ", val);
213 snprintf (buff, sizeof (buff), "%16.16lx ", val);
216 fputs (buff + (byte_size == 4 ? 8 : 0), stdout);
219 static unsigned long int
220 read_leb128 (unsigned char *data, unsigned int *length_return, int sign)
222 unsigned long int result = 0;
223 unsigned int num_read = 0;
224 unsigned int shift = 0;
232 result |= ((unsigned long int) (byte & 0x7f)) << shift;
239 if (length_return != NULL)
240 *length_return = num_read;
242 if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40))
243 result |= -1L << shift;
248 typedef struct State_Machine_Registers
250 unsigned long address;
257 /* This variable hold the number of the last entry seen
258 in the File Table. */
259 unsigned int last_file_entry;
262 static SMR state_machine_regs;
265 reset_state_machine (int is_stmt)
267 state_machine_regs.address = 0;
268 state_machine_regs.file = 1;
269 state_machine_regs.line = 1;
270 state_machine_regs.column = 0;
271 state_machine_regs.is_stmt = is_stmt;
272 state_machine_regs.basic_block = 0;
273 state_machine_regs.end_sequence = 0;
274 state_machine_regs.last_file_entry = 0;
277 /* Handled an extend line op.
278 Returns the number of bytes read. */
281 process_extended_line_op (unsigned char *data, int is_stmt)
283 unsigned char op_code;
284 unsigned int bytes_read;
289 len = read_leb128 (data, & bytes_read, 0);
294 warn (_("badly formed extended line op encountered!\n"));
301 printf (_(" Extended opcode %d: "), op_code);
305 case DW_LNE_end_sequence:
306 printf (_("End of Sequence\n\n"));
307 reset_state_machine (is_stmt);
310 case DW_LNE_set_address:
311 adr = byte_get (data, len - bytes_read - 1);
312 printf (_("set Address to 0x%lx\n"), adr);
313 state_machine_regs.address = adr;
316 case DW_LNE_define_file:
317 printf (_(" define new File Table entry\n"));
318 printf (_(" Entry\tDir\tTime\tSize\tName\n"));
320 printf (_(" %d\t"), ++state_machine_regs.last_file_entry);
322 data += strlen ((char *) data) + 1;
323 printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
325 printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
327 printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
328 printf (_("%s\n\n"), name);
331 case DW_LNE_set_discriminator:
332 printf (_("set Discriminator to %lu\n"),
333 read_leb128 (data, & bytes_read, 0));
337 case DW_LNE_HP_negate_is_UV_update:
338 printf ("DW_LNE_HP_negate_is_UV_update\n");
340 case DW_LNE_HP_push_context:
341 printf ("DW_LNE_HP_push_context\n");
343 case DW_LNE_HP_pop_context:
344 printf ("DW_LNE_HP_pop_context\n");
346 case DW_LNE_HP_set_file_line_column:
347 printf ("DW_LNE_HP_set_file_line_column\n");
349 case DW_LNE_HP_set_routine_name:
350 printf ("DW_LNE_HP_set_routine_name\n");
352 case DW_LNE_HP_set_sequence:
353 printf ("DW_LNE_HP_set_sequence\n");
355 case DW_LNE_HP_negate_post_semantics:
356 printf ("DW_LNE_HP_negate_post_semantics\n");
358 case DW_LNE_HP_negate_function_exit:
359 printf ("DW_LNE_HP_negate_function_exit\n");
361 case DW_LNE_HP_negate_front_end_logical:
362 printf ("DW_LNE_HP_negate_front_end_logical\n");
364 case DW_LNE_HP_define_proc:
365 printf ("DW_LNE_HP_define_proc\n");
369 if (op_code >= DW_LNE_lo_user
370 /* The test against DW_LNW_hi_user is redundant due to
371 the limited range of the unsigned char data type used
373 /*&& op_code <= DW_LNE_hi_user*/)
374 printf (_("user defined: length %d\n"), len - bytes_read);
376 printf (_("UNKNOWN: length %d\n"), len - bytes_read);
384 fetch_indirect_string (unsigned long offset)
386 struct dwarf_section *section = &debug_displays [str].section;
388 if (section->start == NULL)
389 return _("<no .debug_str section>");
391 /* DWARF sections under Mach-O have non-zero addresses. */
392 offset -= section->address;
393 if (offset > section->size)
395 warn (_("DW_FORM_strp offset too big: %lx\n"), offset);
396 return _("<offset is too big>");
399 return (const char *) section->start + offset;
402 /* FIXME: There are better and more efficient ways to handle
403 these structures. For now though, I just want something that
404 is simple to implement. */
405 typedef struct abbrev_attr
407 unsigned long attribute;
409 struct abbrev_attr *next;
413 typedef struct abbrev_entry
418 struct abbrev_attr *first_attr;
419 struct abbrev_attr *last_attr;
420 struct abbrev_entry *next;
424 static abbrev_entry *first_abbrev = NULL;
425 static abbrev_entry *last_abbrev = NULL;
430 abbrev_entry *abbrev;
432 for (abbrev = first_abbrev; abbrev;)
434 abbrev_entry *next = abbrev->next;
437 for (attr = abbrev->first_attr; attr;)
439 abbrev_attr *next = attr->next;
449 last_abbrev = first_abbrev = NULL;
453 add_abbrev (unsigned long number, unsigned long tag, int children)
457 entry = malloc (sizeof (*entry));
463 entry->entry = number;
465 entry->children = children;
466 entry->first_attr = NULL;
467 entry->last_attr = NULL;
470 if (first_abbrev == NULL)
471 first_abbrev = entry;
473 last_abbrev->next = entry;
479 add_abbrev_attr (unsigned long attribute, unsigned long form)
483 attr = malloc (sizeof (*attr));
489 attr->attribute = attribute;
493 if (last_abbrev->first_attr == NULL)
494 last_abbrev->first_attr = attr;
496 last_abbrev->last_attr->next = attr;
498 last_abbrev->last_attr = attr;
501 /* Processes the (partial) contents of a .debug_abbrev section.
502 Returns NULL if the end of the section was encountered.
503 Returns the address after the last byte read if the end of
504 an abbreviation set was found. */
506 static unsigned char *
507 process_abbrev_section (unsigned char *start, unsigned char *end)
509 if (first_abbrev != NULL)
514 unsigned int bytes_read;
517 unsigned long attribute;
520 entry = read_leb128 (start, & bytes_read, 0);
523 /* A single zero is supposed to end the section according
524 to the standard. If there's more, then signal that to
527 return start == end ? NULL : start;
529 tag = read_leb128 (start, & bytes_read, 0);
534 add_abbrev (entry, tag, children);
540 attribute = read_leb128 (start, & bytes_read, 0);
543 form = read_leb128 (start, & bytes_read, 0);
547 add_abbrev_attr (attribute, form);
549 while (attribute != 0);
556 get_TAG_name (unsigned long tag)
560 case DW_TAG_padding: return "DW_TAG_padding";
561 case DW_TAG_array_type: return "DW_TAG_array_type";
562 case DW_TAG_class_type: return "DW_TAG_class_type";
563 case DW_TAG_entry_point: return "DW_TAG_entry_point";
564 case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type";
565 case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter";
566 case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration";
567 case DW_TAG_label: return "DW_TAG_label";
568 case DW_TAG_lexical_block: return "DW_TAG_lexical_block";
569 case DW_TAG_member: return "DW_TAG_member";
570 case DW_TAG_pointer_type: return "DW_TAG_pointer_type";
571 case DW_TAG_reference_type: return "DW_TAG_reference_type";
572 case DW_TAG_compile_unit: return "DW_TAG_compile_unit";
573 case DW_TAG_string_type: return "DW_TAG_string_type";
574 case DW_TAG_structure_type: return "DW_TAG_structure_type";
575 case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type";
576 case DW_TAG_typedef: return "DW_TAG_typedef";
577 case DW_TAG_union_type: return "DW_TAG_union_type";
578 case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters";
579 case DW_TAG_variant: return "DW_TAG_variant";
580 case DW_TAG_common_block: return "DW_TAG_common_block";
581 case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion";
582 case DW_TAG_inheritance: return "DW_TAG_inheritance";
583 case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine";
584 case DW_TAG_module: return "DW_TAG_module";
585 case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type";
586 case DW_TAG_set_type: return "DW_TAG_set_type";
587 case DW_TAG_subrange_type: return "DW_TAG_subrange_type";
588 case DW_TAG_with_stmt: return "DW_TAG_with_stmt";
589 case DW_TAG_access_declaration: return "DW_TAG_access_declaration";
590 case DW_TAG_base_type: return "DW_TAG_base_type";
591 case DW_TAG_catch_block: return "DW_TAG_catch_block";
592 case DW_TAG_const_type: return "DW_TAG_const_type";
593 case DW_TAG_constant: return "DW_TAG_constant";
594 case DW_TAG_enumerator: return "DW_TAG_enumerator";
595 case DW_TAG_file_type: return "DW_TAG_file_type";
596 case DW_TAG_friend: return "DW_TAG_friend";
597 case DW_TAG_namelist: return "DW_TAG_namelist";
598 case DW_TAG_namelist_item: return "DW_TAG_namelist_item";
599 case DW_TAG_packed_type: return "DW_TAG_packed_type";
600 case DW_TAG_subprogram: return "DW_TAG_subprogram";
601 case DW_TAG_template_type_param: return "DW_TAG_template_type_param";
602 case DW_TAG_template_value_param: return "DW_TAG_template_value_param";
603 case DW_TAG_thrown_type: return "DW_TAG_thrown_type";
604 case DW_TAG_try_block: return "DW_TAG_try_block";
605 case DW_TAG_variant_part: return "DW_TAG_variant_part";
606 case DW_TAG_variable: return "DW_TAG_variable";
607 case DW_TAG_volatile_type: return "DW_TAG_volatile_type";
608 case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop";
609 case DW_TAG_format_label: return "DW_TAG_format_label";
610 case DW_TAG_function_template: return "DW_TAG_function_template";
611 case DW_TAG_class_template: return "DW_TAG_class_template";
612 /* DWARF 2.1 values. */
613 case DW_TAG_dwarf_procedure: return "DW_TAG_dwarf_procedure";
614 case DW_TAG_restrict_type: return "DW_TAG_restrict_type";
615 case DW_TAG_interface_type: return "DW_TAG_interface_type";
616 case DW_TAG_namespace: return "DW_TAG_namespace";
617 case DW_TAG_imported_module: return "DW_TAG_imported_module";
618 case DW_TAG_unspecified_type: return "DW_TAG_unspecified_type";
619 case DW_TAG_partial_unit: return "DW_TAG_partial_unit";
620 case DW_TAG_imported_unit: return "DW_TAG_imported_unit";
622 case DW_TAG_upc_shared_type: return "DW_TAG_upc_shared_type";
623 case DW_TAG_upc_strict_type: return "DW_TAG_upc_strict_type";
624 case DW_TAG_upc_relaxed_type: return "DW_TAG_upc_relaxed_type";
627 static char buffer[100];
629 snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag);
636 get_FORM_name (unsigned long form)
640 case DW_FORM_addr: return "DW_FORM_addr";
641 case DW_FORM_block2: return "DW_FORM_block2";
642 case DW_FORM_block4: return "DW_FORM_block4";
643 case DW_FORM_data2: return "DW_FORM_data2";
644 case DW_FORM_data4: return "DW_FORM_data4";
645 case DW_FORM_data8: return "DW_FORM_data8";
646 case DW_FORM_string: return "DW_FORM_string";
647 case DW_FORM_block: return "DW_FORM_block";
648 case DW_FORM_block1: return "DW_FORM_block1";
649 case DW_FORM_data1: return "DW_FORM_data1";
650 case DW_FORM_flag: return "DW_FORM_flag";
651 case DW_FORM_sdata: return "DW_FORM_sdata";
652 case DW_FORM_strp: return "DW_FORM_strp";
653 case DW_FORM_udata: return "DW_FORM_udata";
654 case DW_FORM_ref_addr: return "DW_FORM_ref_addr";
655 case DW_FORM_ref1: return "DW_FORM_ref1";
656 case DW_FORM_ref2: return "DW_FORM_ref2";
657 case DW_FORM_ref4: return "DW_FORM_ref4";
658 case DW_FORM_ref8: return "DW_FORM_ref8";
659 case DW_FORM_ref_udata: return "DW_FORM_ref_udata";
660 case DW_FORM_indirect: return "DW_FORM_indirect";
663 static char buffer[100];
665 snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form);
671 static unsigned char *
672 display_block (unsigned char *data, unsigned long length)
674 printf (_(" %lu byte block: "), length);
677 printf ("%lx ", (unsigned long) byte_get (data++, 1));
683 decode_location_expression (unsigned char * data,
684 unsigned int pointer_size,
685 unsigned long length,
686 unsigned long cu_offset,
687 struct dwarf_section * section)
690 unsigned int bytes_read;
691 unsigned long uvalue;
692 unsigned char *end = data + length;
693 int need_frame_base = 0;
702 printf ("DW_OP_addr: %lx",
703 (unsigned long) byte_get (data, pointer_size));
704 data += pointer_size;
707 printf ("DW_OP_deref");
710 printf ("DW_OP_const1u: %lu", (unsigned long) byte_get (data++, 1));
713 printf ("DW_OP_const1s: %ld", (long) byte_get_signed (data++, 1));
716 printf ("DW_OP_const2u: %lu", (unsigned long) byte_get (data, 2));
720 printf ("DW_OP_const2s: %ld", (long) byte_get_signed (data, 2));
724 printf ("DW_OP_const4u: %lu", (unsigned long) byte_get (data, 4));
728 printf ("DW_OP_const4s: %ld", (long) byte_get_signed (data, 4));
732 printf ("DW_OP_const8u: %lu %lu", (unsigned long) byte_get (data, 4),
733 (unsigned long) byte_get (data + 4, 4));
737 printf ("DW_OP_const8s: %ld %ld", (long) byte_get (data, 4),
738 (long) byte_get (data + 4, 4));
742 printf ("DW_OP_constu: %lu", read_leb128 (data, &bytes_read, 0));
746 printf ("DW_OP_consts: %ld", read_leb128 (data, &bytes_read, 1));
750 printf ("DW_OP_dup");
753 printf ("DW_OP_drop");
756 printf ("DW_OP_over");
759 printf ("DW_OP_pick: %ld", (unsigned long) byte_get (data++, 1));
762 printf ("DW_OP_swap");
765 printf ("DW_OP_rot");
768 printf ("DW_OP_xderef");
771 printf ("DW_OP_abs");
774 printf ("DW_OP_and");
777 printf ("DW_OP_div");
780 printf ("DW_OP_minus");
783 printf ("DW_OP_mod");
786 printf ("DW_OP_mul");
789 printf ("DW_OP_neg");
792 printf ("DW_OP_not");
798 printf ("DW_OP_plus");
800 case DW_OP_plus_uconst:
801 printf ("DW_OP_plus_uconst: %lu",
802 read_leb128 (data, &bytes_read, 0));
806 printf ("DW_OP_shl");
809 printf ("DW_OP_shr");
812 printf ("DW_OP_shra");
815 printf ("DW_OP_xor");
818 printf ("DW_OP_bra: %ld", (long) byte_get_signed (data, 2));
840 printf ("DW_OP_skip: %ld", (long) byte_get_signed (data, 2));
876 printf ("DW_OP_lit%d", op - DW_OP_lit0);
911 printf ("DW_OP_reg%d", op - DW_OP_reg0);
946 printf ("DW_OP_breg%d: %ld", op - DW_OP_breg0,
947 read_leb128 (data, &bytes_read, 1));
952 printf ("DW_OP_regx: %lu", read_leb128 (data, &bytes_read, 0));
957 printf ("DW_OP_fbreg: %ld", read_leb128 (data, &bytes_read, 1));
961 uvalue = read_leb128 (data, &bytes_read, 0);
963 printf ("DW_OP_bregx: %lu %ld", uvalue,
964 read_leb128 (data, &bytes_read, 1));
968 printf ("DW_OP_piece: %lu", read_leb128 (data, &bytes_read, 0));
971 case DW_OP_deref_size:
972 printf ("DW_OP_deref_size: %ld", (long) byte_get (data++, 1));
974 case DW_OP_xderef_size:
975 printf ("DW_OP_xderef_size: %ld", (long) byte_get (data++, 1));
978 printf ("DW_OP_nop");
981 /* DWARF 3 extensions. */
982 case DW_OP_push_object_address:
983 printf ("DW_OP_push_object_address");
986 /* XXX: Strictly speaking for 64-bit DWARF3 files
987 this ought to be an 8-byte wide computation. */
988 printf ("DW_OP_call2: <%lx>", (long) byte_get (data, 2) + cu_offset);
992 /* XXX: Strictly speaking for 64-bit DWARF3 files
993 this ought to be an 8-byte wide computation. */
994 printf ("DW_OP_call4: <%lx>", (long) byte_get (data, 4) + cu_offset);
998 /* XXX: Strictly speaking for 64-bit DWARF3 files
999 this ought to be an 8-byte wide computation. */
1000 printf ("DW_OP_call_ref: <%lx>", (long) byte_get (data, 4) + cu_offset);
1003 case DW_OP_form_tls_address:
1004 printf ("DW_OP_form_tls_address");
1006 case DW_OP_call_frame_cfa:
1007 printf ("DW_OP_call_frame_cfa");
1009 case DW_OP_bit_piece:
1010 printf ("DW_OP_bit_piece: ");
1011 printf ("size: %lu ", read_leb128 (data, &bytes_read, 0));
1013 printf ("offset: %lu ", read_leb128 (data, &bytes_read, 0));
1017 /* GNU extensions. */
1018 case DW_OP_GNU_push_tls_address:
1019 printf ("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown");
1021 case DW_OP_GNU_uninit:
1022 printf ("DW_OP_GNU_uninit");
1023 /* FIXME: Is there data associated with this OP ? */
1025 case DW_OP_GNU_encoded_addr:
1031 addr = get_encoded_value (data, encoding);
1032 if ((encoding & 0x70) == DW_EH_PE_pcrel)
1033 addr += section->address + (data - section->start);
1034 data += size_of_encoded_value (encoding);
1036 printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding);
1037 print_dwarf_vma (addr, pointer_size);
1041 /* HP extensions. */
1042 case DW_OP_HP_is_value:
1043 printf ("DW_OP_HP_is_value");
1044 /* FIXME: Is there data associated with this OP ? */
1046 case DW_OP_HP_fltconst4:
1047 printf ("DW_OP_HP_fltconst4");
1048 /* FIXME: Is there data associated with this OP ? */
1050 case DW_OP_HP_fltconst8:
1051 printf ("DW_OP_HP_fltconst8");
1052 /* FIXME: Is there data associated with this OP ? */
1054 case DW_OP_HP_mod_range:
1055 printf ("DW_OP_HP_mod_range");
1056 /* FIXME: Is there data associated with this OP ? */
1058 case DW_OP_HP_unmod_range:
1059 printf ("DW_OP_HP_unmod_range");
1060 /* FIXME: Is there data associated with this OP ? */
1063 printf ("DW_OP_HP_tls");
1064 /* FIXME: Is there data associated with this OP ? */
1067 /* PGI (STMicroelectronics) extensions. */
1068 case DW_OP_PGI_omp_thread_num:
1069 /* Pushes the thread number for the current thread as it would be
1070 returned by the standard OpenMP library function:
1071 omp_get_thread_num(). The "current thread" is the thread for
1072 which the expression is being evaluated. */
1073 printf ("DW_OP_PGI_omp_thread_num");
1077 if (op >= DW_OP_lo_user
1078 && op <= DW_OP_hi_user)
1079 printf (_("(User defined location op)"));
1081 printf (_("(Unknown location op)"));
1082 /* No way to tell where the next op is, so just bail. */
1083 return need_frame_base;
1086 /* Separate the ops. */
1091 return need_frame_base;
1094 static unsigned char *
1095 read_and_display_attr_value (unsigned long attribute,
1097 unsigned char * data,
1098 unsigned long cu_offset,
1099 unsigned long pointer_size,
1100 unsigned long offset_size,
1102 debug_info * debug_info_p,
1104 struct dwarf_section * section)
1106 unsigned long uvalue = 0;
1107 unsigned char *block_start = NULL;
1108 unsigned char * orig_data = data;
1109 unsigned int bytes_read;
1116 case DW_FORM_ref_addr:
1117 if (dwarf_version == 2)
1119 uvalue = byte_get (data, pointer_size);
1120 data += pointer_size;
1122 else if (dwarf_version == 3)
1124 uvalue = byte_get (data, offset_size);
1125 data += offset_size;
1129 error (_("Internal error: DWARF version is not 2 or 3.\n"));
1134 uvalue = byte_get (data, pointer_size);
1135 data += pointer_size;
1139 uvalue = byte_get (data, offset_size);
1140 data += offset_size;
1146 uvalue = byte_get (data++, 1);
1151 uvalue = byte_get (data, 2);
1157 uvalue = byte_get (data, 4);
1162 uvalue = read_leb128 (data, & bytes_read, 1);
1166 case DW_FORM_ref_udata:
1168 uvalue = read_leb128 (data, & bytes_read, 0);
1172 case DW_FORM_indirect:
1173 form = read_leb128 (data, & bytes_read, 0);
1176 printf (" %s", get_FORM_name (form));
1177 return read_and_display_attr_value (attribute, form, data,
1178 cu_offset, pointer_size,
1179 offset_size, dwarf_version,
1180 debug_info_p, do_loc,
1186 case DW_FORM_ref_addr:
1188 printf (" <0x%lx>", uvalue);
1194 case DW_FORM_ref_udata:
1196 printf (" <0x%lx>", uvalue + cu_offset);
1202 printf (" 0x%lx", uvalue);
1211 printf (" %ld", uvalue);
1218 uvalue = byte_get (data, 4);
1219 printf (" 0x%lx", uvalue);
1220 printf (" 0x%lx", (unsigned long) byte_get (data + 4, 4));
1222 if ((do_loc || do_debug_loc || do_debug_ranges)
1223 && num_debug_info_entries == 0)
1225 if (sizeof (uvalue) == 8)
1226 uvalue = byte_get (data, 8);
1228 error (_("DW_FORM_data8 is unsupported when sizeof (unsigned long) != 8\n"));
1233 case DW_FORM_string:
1235 printf (" %s", data);
1236 data += strlen ((char *) data) + 1;
1240 uvalue = read_leb128 (data, & bytes_read, 0);
1241 block_start = data + bytes_read;
1243 data = block_start + uvalue;
1245 data = display_block (block_start, uvalue);
1248 case DW_FORM_block1:
1249 uvalue = byte_get (data, 1);
1250 block_start = data + 1;
1252 data = block_start + uvalue;
1254 data = display_block (block_start, uvalue);
1257 case DW_FORM_block2:
1258 uvalue = byte_get (data, 2);
1259 block_start = data + 2;
1261 data = block_start + uvalue;
1263 data = display_block (block_start, uvalue);
1266 case DW_FORM_block4:
1267 uvalue = byte_get (data, 4);
1268 block_start = data + 4;
1270 data = block_start + uvalue;
1272 data = display_block (block_start, uvalue);
1277 printf (_(" (indirect string, offset: 0x%lx): %s"),
1278 uvalue, fetch_indirect_string (uvalue));
1281 case DW_FORM_indirect:
1282 /* Handled above. */
1286 warn (_("Unrecognized form: %lu\n"), form);
1290 if ((do_loc || do_debug_loc || do_debug_ranges)
1291 && num_debug_info_entries == 0)
1295 case DW_AT_frame_base:
1296 have_frame_base = 1;
1297 case DW_AT_location:
1298 case DW_AT_string_length:
1299 case DW_AT_return_addr:
1300 case DW_AT_data_member_location:
1301 case DW_AT_vtable_elem_location:
1303 case DW_AT_static_link:
1304 case DW_AT_use_location:
1305 if (form == DW_FORM_data4 || form == DW_FORM_data8)
1307 /* Process location list. */
1308 unsigned int max = debug_info_p->max_loc_offsets;
1309 unsigned int num = debug_info_p->num_loc_offsets;
1311 if (max == 0 || num >= max)
1314 debug_info_p->loc_offsets
1315 = xcrealloc (debug_info_p->loc_offsets,
1316 max, sizeof (*debug_info_p->loc_offsets));
1317 debug_info_p->have_frame_base
1318 = xcrealloc (debug_info_p->have_frame_base,
1319 max, sizeof (*debug_info_p->have_frame_base));
1320 debug_info_p->max_loc_offsets = max;
1322 debug_info_p->loc_offsets [num] = uvalue;
1323 debug_info_p->have_frame_base [num] = have_frame_base;
1324 debug_info_p->num_loc_offsets++;
1329 if (need_base_address)
1330 debug_info_p->base_address = uvalue;
1334 if (form == DW_FORM_data4 || form == DW_FORM_data8)
1336 /* Process range list. */
1337 unsigned int max = debug_info_p->max_range_lists;
1338 unsigned int num = debug_info_p->num_range_lists;
1340 if (max == 0 || num >= max)
1343 debug_info_p->range_lists
1344 = xcrealloc (debug_info_p->range_lists,
1345 max, sizeof (*debug_info_p->range_lists));
1346 debug_info_p->max_range_lists = max;
1348 debug_info_p->range_lists [num] = uvalue;
1349 debug_info_p->num_range_lists++;
1361 /* For some attributes we can display further information. */
1369 case DW_INL_not_inlined:
1370 printf (_("(not inlined)"));
1372 case DW_INL_inlined:
1373 printf (_("(inlined)"));
1375 case DW_INL_declared_not_inlined:
1376 printf (_("(declared as inline but ignored)"));
1378 case DW_INL_declared_inlined:
1379 printf (_("(declared as inline and inlined)"));
1382 printf (_(" (Unknown inline attribute value: %lx)"), uvalue);
1387 case DW_AT_language:
1390 /* Ordered by the numeric value of these constants. */
1391 case DW_LANG_C89: printf ("(ANSI C)"); break;
1392 case DW_LANG_C: printf ("(non-ANSI C)"); break;
1393 case DW_LANG_Ada83: printf ("(Ada)"); break;
1394 case DW_LANG_C_plus_plus: printf ("(C++)"); break;
1395 case DW_LANG_Cobol74: printf ("(Cobol 74)"); break;
1396 case DW_LANG_Cobol85: printf ("(Cobol 85)"); break;
1397 case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break;
1398 case DW_LANG_Fortran90: printf ("(Fortran 90)"); break;
1399 case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break;
1400 case DW_LANG_Modula2: printf ("(Modula 2)"); break;
1401 /* DWARF 2.1 values. */
1402 case DW_LANG_Java: printf ("(Java)"); break;
1403 case DW_LANG_C99: printf ("(ANSI C99)"); break;
1404 case DW_LANG_Ada95: printf ("(ADA 95)"); break;
1405 case DW_LANG_Fortran95: printf ("(Fortran 95)"); break;
1406 /* DWARF 3 values. */
1407 case DW_LANG_PLI: printf ("(PLI)"); break;
1408 case DW_LANG_ObjC: printf ("(Objective C)"); break;
1409 case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break;
1410 case DW_LANG_UPC: printf ("(Unified Parallel C)"); break;
1411 case DW_LANG_D: printf ("(D)"); break;
1412 /* MIPS extension. */
1413 case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break;
1414 /* UPC extension. */
1415 case DW_LANG_Upc: printf ("(Unified Parallel C)"); break;
1417 if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user)
1418 printf ("(implementation defined: %lx)", uvalue);
1420 printf ("(Unknown: %lx)", uvalue);
1425 case DW_AT_encoding:
1428 case DW_ATE_void: printf ("(void)"); break;
1429 case DW_ATE_address: printf ("(machine address)"); break;
1430 case DW_ATE_boolean: printf ("(boolean)"); break;
1431 case DW_ATE_complex_float: printf ("(complex float)"); break;
1432 case DW_ATE_float: printf ("(float)"); break;
1433 case DW_ATE_signed: printf ("(signed)"); break;
1434 case DW_ATE_signed_char: printf ("(signed char)"); break;
1435 case DW_ATE_unsigned: printf ("(unsigned)"); break;
1436 case DW_ATE_unsigned_char: printf ("(unsigned char)"); break;
1437 /* DWARF 2.1 values: */
1438 case DW_ATE_imaginary_float: printf ("(imaginary float)"); break;
1439 case DW_ATE_decimal_float: printf ("(decimal float)"); break;
1440 /* DWARF 3 values: */
1441 case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break;
1442 case DW_ATE_numeric_string: printf ("(numeric_string)"); break;
1443 case DW_ATE_edited: printf ("(edited)"); break;
1444 case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break;
1445 case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break;
1446 /* HP extensions: */
1447 case DW_ATE_HP_float80: printf ("(HP_float80)"); break;
1448 case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break;
1449 case DW_ATE_HP_float128: printf ("(HP_float128)"); break;
1450 case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break;
1451 case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break;
1452 case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break;
1453 case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break;
1456 if (uvalue >= DW_ATE_lo_user
1457 && uvalue <= DW_ATE_hi_user)
1458 printf ("(user defined type)");
1460 printf ("(unknown type)");
1465 case DW_AT_accessibility:
1468 case DW_ACCESS_public: printf ("(public)"); break;
1469 case DW_ACCESS_protected: printf ("(protected)"); break;
1470 case DW_ACCESS_private: printf ("(private)"); break;
1472 printf ("(unknown accessibility)");
1477 case DW_AT_visibility:
1480 case DW_VIS_local: printf ("(local)"); break;
1481 case DW_VIS_exported: printf ("(exported)"); break;
1482 case DW_VIS_qualified: printf ("(qualified)"); break;
1483 default: printf ("(unknown visibility)"); break;
1487 case DW_AT_virtuality:
1490 case DW_VIRTUALITY_none: printf ("(none)"); break;
1491 case DW_VIRTUALITY_virtual: printf ("(virtual)"); break;
1492 case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break;
1493 default: printf ("(unknown virtuality)"); break;
1497 case DW_AT_identifier_case:
1500 case DW_ID_case_sensitive: printf ("(case_sensitive)"); break;
1501 case DW_ID_up_case: printf ("(up_case)"); break;
1502 case DW_ID_down_case: printf ("(down_case)"); break;
1503 case DW_ID_case_insensitive: printf ("(case_insensitive)"); break;
1504 default: printf ("(unknown case)"); break;
1508 case DW_AT_calling_convention:
1511 case DW_CC_normal: printf ("(normal)"); break;
1512 case DW_CC_program: printf ("(program)"); break;
1513 case DW_CC_nocall: printf ("(nocall)"); break;
1515 if (uvalue >= DW_CC_lo_user
1516 && uvalue <= DW_CC_hi_user)
1517 printf ("(user defined)");
1519 printf ("(unknown convention)");
1523 case DW_AT_ordering:
1526 case -1: printf ("(undefined)"); break;
1527 case 0: printf ("(row major)"); break;
1528 case 1: printf ("(column major)"); break;
1532 case DW_AT_frame_base:
1533 have_frame_base = 1;
1534 case DW_AT_location:
1535 case DW_AT_string_length:
1536 case DW_AT_return_addr:
1537 case DW_AT_data_member_location:
1538 case DW_AT_vtable_elem_location:
1540 case DW_AT_static_link:
1541 case DW_AT_use_location:
1542 if (form == DW_FORM_data4 || form == DW_FORM_data8)
1543 printf (_("(location list)"));
1545 case DW_AT_allocated:
1546 case DW_AT_associated:
1547 case DW_AT_data_location:
1549 case DW_AT_upper_bound:
1550 case DW_AT_lower_bound:
1553 int need_frame_base;
1556 need_frame_base = decode_location_expression (block_start,
1559 cu_offset, section);
1561 if (need_frame_base && !have_frame_base)
1562 printf (_(" [without DW_AT_frame_base]"));
1568 if (form == DW_FORM_ref1
1569 || form == DW_FORM_ref2
1570 || form == DW_FORM_ref4)
1571 uvalue += cu_offset;
1573 if (uvalue >= section->size)
1574 warn (_("Offset %lx used as value for DW_AT_import attribute of DIE at offset %lx is too big.\n"),
1575 uvalue, (unsigned long) (orig_data - section->start));
1578 unsigned long abbrev_number;
1579 abbrev_entry * entry;
1581 abbrev_number = read_leb128 (section->start + uvalue, NULL, 0);
1583 printf ("[Abbrev Number: %ld", abbrev_number);
1584 for (entry = first_abbrev; entry != NULL; entry = entry->next)
1585 if (entry->entry == abbrev_number)
1588 printf (" (%s)", get_TAG_name (entry->tag));
1602 get_AT_name (unsigned long attribute)
1606 case DW_AT_sibling: return "DW_AT_sibling";
1607 case DW_AT_location: return "DW_AT_location";
1608 case DW_AT_name: return "DW_AT_name";
1609 case DW_AT_ordering: return "DW_AT_ordering";
1610 case DW_AT_subscr_data: return "DW_AT_subscr_data";
1611 case DW_AT_byte_size: return "DW_AT_byte_size";
1612 case DW_AT_bit_offset: return "DW_AT_bit_offset";
1613 case DW_AT_bit_size: return "DW_AT_bit_size";
1614 case DW_AT_element_list: return "DW_AT_element_list";
1615 case DW_AT_stmt_list: return "DW_AT_stmt_list";
1616 case DW_AT_low_pc: return "DW_AT_low_pc";
1617 case DW_AT_high_pc: return "DW_AT_high_pc";
1618 case DW_AT_language: return "DW_AT_language";
1619 case DW_AT_member: return "DW_AT_member";
1620 case DW_AT_discr: return "DW_AT_discr";
1621 case DW_AT_discr_value: return "DW_AT_discr_value";
1622 case DW_AT_visibility: return "DW_AT_visibility";
1623 case DW_AT_import: return "DW_AT_import";
1624 case DW_AT_string_length: return "DW_AT_string_length";
1625 case DW_AT_common_reference: return "DW_AT_common_reference";
1626 case DW_AT_comp_dir: return "DW_AT_comp_dir";
1627 case DW_AT_const_value: return "DW_AT_const_value";
1628 case DW_AT_containing_type: return "DW_AT_containing_type";
1629 case DW_AT_default_value: return "DW_AT_default_value";
1630 case DW_AT_inline: return "DW_AT_inline";
1631 case DW_AT_is_optional: return "DW_AT_is_optional";
1632 case DW_AT_lower_bound: return "DW_AT_lower_bound";
1633 case DW_AT_producer: return "DW_AT_producer";
1634 case DW_AT_prototyped: return "DW_AT_prototyped";
1635 case DW_AT_return_addr: return "DW_AT_return_addr";
1636 case DW_AT_start_scope: return "DW_AT_start_scope";
1637 case DW_AT_stride_size: return "DW_AT_stride_size";
1638 case DW_AT_upper_bound: return "DW_AT_upper_bound";
1639 case DW_AT_abstract_origin: return "DW_AT_abstract_origin";
1640 case DW_AT_accessibility: return "DW_AT_accessibility";
1641 case DW_AT_address_class: return "DW_AT_address_class";
1642 case DW_AT_artificial: return "DW_AT_artificial";
1643 case DW_AT_base_types: return "DW_AT_base_types";
1644 case DW_AT_calling_convention: return "DW_AT_calling_convention";
1645 case DW_AT_count: return "DW_AT_count";
1646 case DW_AT_data_member_location: return "DW_AT_data_member_location";
1647 case DW_AT_decl_column: return "DW_AT_decl_column";
1648 case DW_AT_decl_file: return "DW_AT_decl_file";
1649 case DW_AT_decl_line: return "DW_AT_decl_line";
1650 case DW_AT_declaration: return "DW_AT_declaration";
1651 case DW_AT_discr_list: return "DW_AT_discr_list";
1652 case DW_AT_encoding: return "DW_AT_encoding";
1653 case DW_AT_external: return "DW_AT_external";
1654 case DW_AT_frame_base: return "DW_AT_frame_base";
1655 case DW_AT_friend: return "DW_AT_friend";
1656 case DW_AT_identifier_case: return "DW_AT_identifier_case";
1657 case DW_AT_macro_info: return "DW_AT_macro_info";
1658 case DW_AT_namelist_items: return "DW_AT_namelist_items";
1659 case DW_AT_priority: return "DW_AT_priority";
1660 case DW_AT_segment: return "DW_AT_segment";
1661 case DW_AT_specification: return "DW_AT_specification";
1662 case DW_AT_static_link: return "DW_AT_static_link";
1663 case DW_AT_type: return "DW_AT_type";
1664 case DW_AT_use_location: return "DW_AT_use_location";
1665 case DW_AT_variable_parameter: return "DW_AT_variable_parameter";
1666 case DW_AT_virtuality: return "DW_AT_virtuality";
1667 case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location";
1668 /* DWARF 2.1 values. */
1669 case DW_AT_allocated: return "DW_AT_allocated";
1670 case DW_AT_associated: return "DW_AT_associated";
1671 case DW_AT_data_location: return "DW_AT_data_location";
1672 case DW_AT_stride: return "DW_AT_stride";
1673 case DW_AT_entry_pc: return "DW_AT_entry_pc";
1674 case DW_AT_use_UTF8: return "DW_AT_use_UTF8";
1675 case DW_AT_extension: return "DW_AT_extension";
1676 case DW_AT_ranges: return "DW_AT_ranges";
1677 case DW_AT_trampoline: return "DW_AT_trampoline";
1678 case DW_AT_call_column: return "DW_AT_call_column";
1679 case DW_AT_call_file: return "DW_AT_call_file";
1680 case DW_AT_call_line: return "DW_AT_call_line";
1681 case DW_AT_description: return "DW_AT_description";
1682 case DW_AT_binary_scale: return "DW_AT_binary_scale";
1683 case DW_AT_decimal_scale: return "DW_AT_decimal_scale";
1684 case DW_AT_small: return "DW_AT_small";
1685 case DW_AT_decimal_sign: return "DW_AT_decimal_sign";
1686 case DW_AT_digit_count: return "DW_AT_digit_count";
1687 case DW_AT_picture_string: return "DW_AT_picture_string";
1688 case DW_AT_mutable: return "DW_AT_mutable";
1689 case DW_AT_threads_scaled: return "DW_AT_threads_scaled";
1690 case DW_AT_explicit: return "DW_AT_explicit";
1691 case DW_AT_object_pointer: return "DW_AT_object_pointer";
1692 case DW_AT_endianity: return "DW_AT_endianity";
1693 case DW_AT_elemental: return "DW_AT_elemental";
1694 case DW_AT_pure: return "DW_AT_pure";
1695 case DW_AT_recursive: return "DW_AT_recursive";
1697 /* HP and SGI/MIPS extensions. */
1698 case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin";
1699 case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin";
1700 case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin";
1701 case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor";
1702 case DW_AT_MIPS_software_pipeline_depth: return "DW_AT_MIPS_software_pipeline_depth";
1703 case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name";
1704 case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride";
1705 case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name";
1706 case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin";
1707 case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines";
1709 /* HP Extensions. */
1710 case DW_AT_HP_block_index: return "DW_AT_HP_block_index";
1711 case DW_AT_HP_actuals_stmt_list: return "DW_AT_HP_actuals_stmt_list";
1712 case DW_AT_HP_proc_per_section: return "DW_AT_HP_proc_per_section";
1713 case DW_AT_HP_raw_data_ptr: return "DW_AT_HP_raw_data_ptr";
1714 case DW_AT_HP_pass_by_reference: return "DW_AT_HP_pass_by_reference";
1715 case DW_AT_HP_opt_level: return "DW_AT_HP_opt_level";
1716 case DW_AT_HP_prof_version_id: return "DW_AT_HP_prof_version_id";
1717 case DW_AT_HP_opt_flags: return "DW_AT_HP_opt_flags";
1718 case DW_AT_HP_cold_region_low_pc: return "DW_AT_HP_cold_region_low_pc";
1719 case DW_AT_HP_cold_region_high_pc: return "DW_AT_HP_cold_region_high_pc";
1720 case DW_AT_HP_all_variables_modifiable: return "DW_AT_HP_all_variables_modifiable";
1721 case DW_AT_HP_linkage_name: return "DW_AT_HP_linkage_name";
1722 case DW_AT_HP_prof_flags: return "DW_AT_HP_prof_flags";
1724 /* One value is shared by the MIPS and HP extensions: */
1725 case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable";
1727 /* GNU extensions. */
1728 case DW_AT_sf_names: return "DW_AT_sf_names";
1729 case DW_AT_src_info: return "DW_AT_src_info";
1730 case DW_AT_mac_info: return "DW_AT_mac_info";
1731 case DW_AT_src_coords: return "DW_AT_src_coords";
1732 case DW_AT_body_begin: return "DW_AT_body_begin";
1733 case DW_AT_body_end: return "DW_AT_body_end";
1734 case DW_AT_GNU_vector: return "DW_AT_GNU_vector";
1736 /* UPC extension. */
1737 case DW_AT_upc_threads_scaled: return "DW_AT_upc_threads_scaled";
1739 /* PGI (STMicroelectronics) extensions. */
1740 case DW_AT_PGI_lbase: return "DW_AT_PGI_lbase";
1741 case DW_AT_PGI_soffset: return "DW_AT_PGI_soffset";
1742 case DW_AT_PGI_lstride: return "DW_AT_PGI_lstride";
1746 static char buffer[100];
1748 snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"),
1755 static unsigned char *
1756 read_and_display_attr (unsigned long attribute,
1758 unsigned char * data,
1759 unsigned long cu_offset,
1760 unsigned long pointer_size,
1761 unsigned long offset_size,
1763 debug_info * debug_info_p,
1765 struct dwarf_section * section)
1768 printf (" %-18s:", get_AT_name (attribute));
1769 data = read_and_display_attr_value (attribute, form, data, cu_offset,
1770 pointer_size, offset_size,
1771 dwarf_version, debug_info_p,
1779 /* Process the contents of a .debug_info section. If do_loc is non-zero
1780 then we are scanning for location lists and we do not want to display
1781 anything to the user. */
1784 process_debug_info (struct dwarf_section *section,
1788 unsigned char *start = section->start;
1789 unsigned char *end = start + section->size;
1790 unsigned char *section_begin;
1792 unsigned int num_units = 0;
1794 if ((do_loc || do_debug_loc || do_debug_ranges)
1795 && num_debug_info_entries == 0)
1797 unsigned long length;
1799 /* First scan the section to get the number of comp units. */
1800 for (section_begin = start, num_units = 0; section_begin < end;
1803 /* Read the first 4 bytes. For a 32-bit DWARF section, this
1804 will be the length. For a 64-bit DWARF section, it'll be
1805 the escape code 0xffffffff followed by an 8 byte length. */
1806 length = byte_get (section_begin, 4);
1808 if (length == 0xffffffff)
1810 length = byte_get (section_begin + 4, 8);
1811 section_begin += length + 12;
1813 else if (length >= 0xfffffff0 && length < 0xffffffff)
1815 warn (_("Reserved length value (%lx) found in section %s\n"), length, section->name);
1819 section_begin += length + 4;
1821 /* Negative values are illegal, they may even cause infinite
1822 looping. This can happen if we can't accurately apply
1823 relocations to an object file. */
1824 if ((signed long) length <= 0)
1826 warn (_("Corrupt unit length (%lx) found in section %s\n"), length, section->name);
1833 error (_("No comp units in %s section ?"), section->name);
1837 /* Then allocate an array to hold the information. */
1838 debug_information = cmalloc (num_units,
1839 sizeof (* debug_information));
1840 if (debug_information == NULL)
1842 error (_("Not enough memory for a debug info array of %u entries"),
1850 printf (_("Contents of the %s section:\n\n"), section->name);
1852 load_debug_section (str, file);
1855 load_debug_section (abbrev, file);
1856 if (debug_displays [abbrev].section.start == NULL)
1858 warn (_("Unable to locate %s section!\n"),
1859 debug_displays [abbrev].section.name);
1863 for (section_begin = start, unit = 0; start < end; unit++)
1865 DWARF2_Internal_CompUnit compunit;
1866 unsigned char *hdrptr;
1867 unsigned char *cu_abbrev_offset_ptr;
1868 unsigned char *tags;
1870 unsigned long cu_offset;
1872 int initial_length_size;
1876 compunit.cu_length = byte_get (hdrptr, 4);
1879 if (compunit.cu_length == 0xffffffff)
1881 compunit.cu_length = byte_get (hdrptr, 8);
1884 initial_length_size = 12;
1889 initial_length_size = 4;
1892 compunit.cu_version = byte_get (hdrptr, 2);
1895 cu_offset = start - section_begin;
1897 cu_abbrev_offset_ptr = hdrptr;
1898 compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size);
1899 hdrptr += offset_size;
1901 compunit.cu_pointer_size = byte_get (hdrptr, 1);
1903 if ((do_loc || do_debug_loc || do_debug_ranges)
1904 && num_debug_info_entries == 0)
1906 debug_information [unit].cu_offset = cu_offset;
1907 debug_information [unit].pointer_size
1908 = compunit.cu_pointer_size;
1909 debug_information [unit].base_address = 0;
1910 debug_information [unit].loc_offsets = NULL;
1911 debug_information [unit].have_frame_base = NULL;
1912 debug_information [unit].max_loc_offsets = 0;
1913 debug_information [unit].num_loc_offsets = 0;
1914 debug_information [unit].range_lists = NULL;
1915 debug_information [unit].max_range_lists= 0;
1916 debug_information [unit].num_range_lists = 0;
1921 printf (_(" Compilation Unit @ offset 0x%lx:\n"), cu_offset);
1922 printf (_(" Length: 0x%lx (%s)\n"), compunit.cu_length,
1923 initial_length_size == 8 ? "64-bit" : "32-bit");
1924 printf (_(" Version: %d\n"), compunit.cu_version);
1925 printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset);
1926 printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
1929 if (cu_offset + compunit.cu_length + initial_length_size
1932 warn (_("Debug info is corrupted, length of CU at %lx extends beyond end of section (length = %lx)\n"),
1933 cu_offset, compunit.cu_length);
1937 start += compunit.cu_length + initial_length_size;
1939 if (compunit.cu_version != 2 && compunit.cu_version != 3)
1941 warn (_("CU at offset %lx contains corrupt or unsupported version number: %d.\n"),
1942 cu_offset, compunit.cu_version);
1948 /* Process the abbrevs used by this compilation unit. DWARF
1949 sections under Mach-O have non-zero addresses. */
1950 if (compunit.cu_abbrev_offset >= debug_displays [abbrev].section.size)
1951 warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"),
1952 (unsigned long) compunit.cu_abbrev_offset,
1953 (unsigned long) debug_displays [abbrev].section.size);
1955 process_abbrev_section
1956 ((unsigned char *) debug_displays [abbrev].section.start
1957 + compunit.cu_abbrev_offset - debug_displays [abbrev].section.address,
1958 (unsigned char *) debug_displays [abbrev].section.start
1959 + debug_displays [abbrev].section.size);
1962 while (tags < start)
1964 unsigned int bytes_read;
1965 unsigned long abbrev_number;
1966 unsigned long die_offset;
1967 abbrev_entry *entry;
1970 die_offset = tags - section_begin;
1972 abbrev_number = read_leb128 (tags, & bytes_read, 0);
1975 /* A null DIE marks the end of a list of siblings. */
1976 if (abbrev_number == 0)
1981 static unsigned num_bogus_warns = 0;
1983 if (num_bogus_warns < 3)
1985 warn (_("Bogus end-of-siblings marker detected at offset %lx in .debug_info section\n"),
1988 if (num_bogus_warns == 3)
1989 warn (_("Further warnings about bogus end-of-sibling markers suppressed\n"));
1996 printf (_(" <%d><%lx>: Abbrev Number: %lu"),
1997 level, die_offset, abbrev_number);
1999 /* Scan through the abbreviation list until we reach the
2001 for (entry = first_abbrev;
2002 entry && entry->entry != abbrev_number;
2003 entry = entry->next)
2013 warn (_("DIE at offset %lx refers to abbreviation number %lu which does not exist\n"),
2014 die_offset, abbrev_number);
2019 printf (_(" (%s)\n"), get_TAG_name (entry->tag));
2024 need_base_address = 0;
2026 case DW_TAG_compile_unit:
2027 need_base_address = 1;
2029 case DW_TAG_entry_point:
2030 case DW_TAG_subprogram:
2031 need_base_address = 0;
2032 /* Assuming that there is no DW_AT_frame_base. */
2033 have_frame_base = 0;
2037 for (attr = entry->first_attr; attr; attr = attr->next)
2040 /* Show the offset from where the tag was extracted. */
2041 printf (" <%2lx>", (unsigned long)(tags - section_begin));
2043 tags = read_and_display_attr (attr->attribute,
2046 compunit.cu_pointer_size,
2048 compunit.cu_version,
2049 debug_information + unit,
2053 if (entry->children)
2058 /* Set num_debug_info_entries here so that it can be used to check if
2059 we need to process .debug_loc and .debug_ranges sections. */
2060 if ((do_loc || do_debug_loc || do_debug_ranges)
2061 && num_debug_info_entries == 0)
2062 num_debug_info_entries = num_units;
2072 /* Locate and scan the .debug_info section in the file and record the pointer
2073 sizes and offsets for the compilation units in it. Usually an executable
2074 will have just one pointer size, but this is not guaranteed, and so we try
2075 not to make any assumptions. Returns zero upon failure, or the number of
2076 compilation units upon success. */
2079 load_debug_info (void * file)
2081 /* Reset the last pointer size so that we can issue correct error
2082 messages if we are displaying the contents of more than one section. */
2083 last_pointer_size = 0;
2084 warned_about_missing_comp_units = FALSE;
2086 /* If we have already tried and failed to load the .debug_info
2087 section then do not bother to repear the task. */
2088 if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
2091 /* If we already have the information there is nothing else to do. */
2092 if (num_debug_info_entries > 0)
2093 return num_debug_info_entries;
2095 if (load_debug_section (info, file)
2096 && process_debug_info (&debug_displays [info].section, file, 1))
2097 return num_debug_info_entries;
2099 num_debug_info_entries = DEBUG_INFO_UNAVAILABLE;
2104 display_debug_lines_raw (struct dwarf_section *section,
2105 unsigned char *data,
2108 unsigned char *start = section->start;
2110 printf (_("Raw dump of debug contents of section %s:\n\n"),
2115 DWARF2_Internal_LineInfo info;
2116 unsigned char *standard_opcodes;
2117 unsigned char *end_of_sequence;
2118 unsigned char *hdrptr;
2119 unsigned long hdroff;
2120 int initial_length_size;
2125 hdroff = hdrptr - start;
2127 /* Check the length of the block. */
2128 info.li_length = byte_get (hdrptr, 4);
2131 if (info.li_length == 0xffffffff)
2133 /* This section is 64-bit DWARF 3. */
2134 info.li_length = byte_get (hdrptr, 8);
2137 initial_length_size = 12;
2142 initial_length_size = 4;
2145 if (info.li_length + initial_length_size > section->size)
2148 (_("The information in section %s appears to be corrupt - the section is too small\n"),
2153 /* Check its version number. */
2154 info.li_version = byte_get (hdrptr, 2);
2156 if (info.li_version != 2 && info.li_version != 3)
2158 warn (_("Only DWARF version 2 and 3 line info is currently supported.\n"));
2162 info.li_prologue_length = byte_get (hdrptr, offset_size);
2163 hdrptr += offset_size;
2164 info.li_min_insn_length = byte_get (hdrptr, 1);
2166 info.li_default_is_stmt = byte_get (hdrptr, 1);
2168 info.li_line_base = byte_get (hdrptr, 1);
2170 info.li_line_range = byte_get (hdrptr, 1);
2172 info.li_opcode_base = byte_get (hdrptr, 1);
2175 /* Sign extend the line base field. */
2176 info.li_line_base <<= 24;
2177 info.li_line_base >>= 24;
2179 printf (_(" Offset: 0x%lx\n"), hdroff);
2180 printf (_(" Length: %ld\n"), info.li_length);
2181 printf (_(" DWARF Version: %d\n"), info.li_version);
2182 printf (_(" Prologue Length: %d\n"), info.li_prologue_length);
2183 printf (_(" Minimum Instruction Length: %d\n"), info.li_min_insn_length);
2184 printf (_(" Initial value of 'is_stmt': %d\n"), info.li_default_is_stmt);
2185 printf (_(" Line Base: %d\n"), info.li_line_base);
2186 printf (_(" Line Range: %d\n"), info.li_line_range);
2187 printf (_(" Opcode Base: %d\n"), info.li_opcode_base);
2189 end_of_sequence = data + info.li_length + initial_length_size;
2191 reset_state_machine (info.li_default_is_stmt);
2193 /* Display the contents of the Opcodes table. */
2194 standard_opcodes = hdrptr;
2196 printf (_("\n Opcodes:\n"));
2198 for (i = 1; i < info.li_opcode_base; i++)
2199 printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]);
2201 /* Display the contents of the Directory table. */
2202 data = standard_opcodes + info.li_opcode_base - 1;
2205 printf (_("\n The Directory Table is empty.\n"));
2208 printf (_("\n The Directory Table:\n"));
2212 printf (_(" %s\n"), data);
2214 data += strlen ((char *) data) + 1;
2218 /* Skip the NUL at the end of the table. */
2221 /* Display the contents of the File Name table. */
2223 printf (_("\n The File Name Table is empty.\n"));
2226 printf (_("\n The File Name Table:\n"));
2227 printf (_(" Entry\tDir\tTime\tSize\tName\n"));
2231 unsigned char *name;
2232 unsigned int bytes_read;
2234 printf (_(" %d\t"), ++state_machine_regs.last_file_entry);
2237 data += strlen ((char *) data) + 1;
2239 printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
2241 printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
2243 printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
2245 printf (_("%s\n"), name);
2249 /* Skip the NUL at the end of the table. */
2252 /* Now display the statements. */
2253 printf (_("\n Line Number Statements:\n"));
2255 while (data < end_of_sequence)
2257 unsigned char op_code;
2259 unsigned long int uladv;
2260 unsigned int bytes_read;
2264 if (op_code >= info.li_opcode_base)
2266 op_code -= info.li_opcode_base;
2267 uladv = (op_code / info.li_line_range) * info.li_min_insn_length;
2268 state_machine_regs.address += uladv;
2269 printf (_(" Special opcode %d: advance Address by %lu to 0x%lx"),
2270 op_code, uladv, state_machine_regs.address);
2271 adv = (op_code % info.li_line_range) + info.li_line_base;
2272 state_machine_regs.line += adv;
2273 printf (_(" and Line by %d to %d\n"),
2274 adv, state_machine_regs.line);
2276 else switch (op_code)
2278 case DW_LNS_extended_op:
2279 data += process_extended_line_op (data, info.li_default_is_stmt);
2283 printf (_(" Copy\n"));
2286 case DW_LNS_advance_pc:
2287 uladv = read_leb128 (data, & bytes_read, 0);
2288 uladv *= info.li_min_insn_length;
2290 state_machine_regs.address += uladv;
2291 printf (_(" Advance PC by %lu to 0x%lx\n"), uladv,
2292 state_machine_regs.address);
2295 case DW_LNS_advance_line:
2296 adv = read_leb128 (data, & bytes_read, 1);
2298 state_machine_regs.line += adv;
2299 printf (_(" Advance Line by %d to %d\n"), adv,
2300 state_machine_regs.line);
2303 case DW_LNS_set_file:
2304 adv = read_leb128 (data, & bytes_read, 0);
2306 printf (_(" Set File Name to entry %d in the File Name Table\n"),
2308 state_machine_regs.file = adv;
2311 case DW_LNS_set_column:
2312 uladv = read_leb128 (data, & bytes_read, 0);
2314 printf (_(" Set column to %lu\n"), uladv);
2315 state_machine_regs.column = uladv;
2318 case DW_LNS_negate_stmt:
2319 adv = state_machine_regs.is_stmt;
2321 printf (_(" Set is_stmt to %d\n"), adv);
2322 state_machine_regs.is_stmt = adv;
2325 case DW_LNS_set_basic_block:
2326 printf (_(" Set basic block\n"));
2327 state_machine_regs.basic_block = 1;
2330 case DW_LNS_const_add_pc:
2331 uladv = (((255 - info.li_opcode_base) / info.li_line_range)
2332 * info.li_min_insn_length);
2333 state_machine_regs.address += uladv;
2334 printf (_(" Advance PC by constant %lu to 0x%lx\n"), uladv,
2335 state_machine_regs.address);
2338 case DW_LNS_fixed_advance_pc:
2339 uladv = byte_get (data, 2);
2341 state_machine_regs.address += uladv;
2342 printf (_(" Advance PC by fixed size amount %lu to 0x%lx\n"),
2343 uladv, state_machine_regs.address);
2346 case DW_LNS_set_prologue_end:
2347 printf (_(" Set prologue_end to true\n"));
2350 case DW_LNS_set_epilogue_begin:
2351 printf (_(" Set epilogue_begin to true\n"));
2354 case DW_LNS_set_isa:
2355 uladv = read_leb128 (data, & bytes_read, 0);
2357 printf (_(" Set ISA to %lu\n"), uladv);
2361 printf (_(" Unknown opcode %d with operands: "), op_code);
2363 for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
2365 printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0),
2366 i == 1 ? "" : ", ");
2381 unsigned char *name;
2382 unsigned int directory_index;
2383 unsigned int modification_date;
2384 unsigned int length;
2387 /* Output a decoded representation of the .debug_line section. */
2390 display_debug_lines_decoded (struct dwarf_section *section,
2391 unsigned char *data,
2394 printf (_("Decoded dump of debug contents of section %s:\n\n"),
2399 /* This loop amounts to one iteration per compilation unit. */
2400 DWARF2_Internal_LineInfo info;
2401 unsigned char *standard_opcodes;
2402 unsigned char *end_of_sequence;
2403 unsigned char *hdrptr;
2404 int initial_length_size;
2407 File_Entry *file_table = NULL;
2408 unsigned char **directory_table = NULL;
2409 unsigned int prev_line = 0;
2413 /* Extract information from the Line Number Program Header.
2414 (section 6.2.4 in the Dwarf3 doc). */
2416 /* Get the length of this CU's line number information block. */
2417 info.li_length = byte_get (hdrptr, 4);
2420 if (info.li_length == 0xffffffff)
2422 /* This section is 64-bit DWARF 3. */
2423 info.li_length = byte_get (hdrptr, 8);
2426 initial_length_size = 12;
2431 initial_length_size = 4;
2434 if (info.li_length + initial_length_size > section->size)
2436 warn (_("The line info appears to be corrupt - "
2437 "the section is too small\n"));
2441 /* Get this CU's Line Number Block version number. */
2442 info.li_version = byte_get (hdrptr, 2);
2444 if (info.li_version != 2 && info.li_version != 3)
2446 warn (_("Only DWARF version 2 and 3 line info is currently "
2451 info.li_prologue_length = byte_get (hdrptr, offset_size);
2452 hdrptr += offset_size;
2453 info.li_min_insn_length = byte_get (hdrptr, 1);
2455 info.li_default_is_stmt = byte_get (hdrptr, 1);
2457 info.li_line_base = byte_get (hdrptr, 1);
2459 info.li_line_range = byte_get (hdrptr, 1);
2461 info.li_opcode_base = byte_get (hdrptr, 1);
2464 /* Sign extend the line base field. */
2465 info.li_line_base <<= 24;
2466 info.li_line_base >>= 24;
2468 /* Find the end of this CU's Line Number Information Block. */
2469 end_of_sequence = data + info.li_length + initial_length_size;
2471 reset_state_machine (info.li_default_is_stmt);
2473 /* Save a pointer to the contents of the Opcodes table. */
2474 standard_opcodes = hdrptr;
2476 /* Traverse the Directory table just to count entries. */
2477 data = standard_opcodes + info.li_opcode_base - 1;
2480 unsigned int n_directories = 0;
2481 unsigned char *ptr_directory_table = data;
2486 data += strlen ((char *) data) + 1;
2490 /* Go through the directory table again to save the directories. */
2491 directory_table = xmalloc (n_directories * sizeof (unsigned char *));
2494 while (*ptr_directory_table != 0)
2496 directory_table[i] = ptr_directory_table;
2497 ptr_directory_table += strlen ((char *) ptr_directory_table) + 1;
2501 /* Skip the NUL at the end of the table. */
2504 /* Traverse the File Name table just to count the entries. */
2507 unsigned int n_files = 0;
2508 unsigned char *ptr_file_name_table = data;
2513 unsigned int bytes_read;
2515 /* Skip Name, directory index, last modification time and length
2517 data += strlen ((char *) data) + 1;
2518 read_leb128 (data, & bytes_read, 0);
2520 read_leb128 (data, & bytes_read, 0);
2522 read_leb128 (data, & bytes_read, 0);
2528 /* Go through the file table again to save the strings. */
2529 file_table = xmalloc (n_files * sizeof (File_Entry));
2532 while (*ptr_file_name_table != 0)
2534 unsigned int bytes_read;
2536 file_table[i].name = ptr_file_name_table;
2537 ptr_file_name_table += strlen ((char *) ptr_file_name_table) + 1;
2539 /* We are not interested in directory, time or size. */
2540 file_table[i].directory_index = read_leb128 (ptr_file_name_table,
2542 ptr_file_name_table += bytes_read;
2543 file_table[i].modification_date = read_leb128 (ptr_file_name_table,
2545 ptr_file_name_table += bytes_read;
2546 file_table[i].length = read_leb128 (ptr_file_name_table, & bytes_read, 0);
2547 ptr_file_name_table += bytes_read;
2552 /* Print the Compilation Unit's name and a header. */
2553 if (directory_table == NULL)
2555 printf (_("CU: %s:\n"), file_table[0].name);
2556 printf (_("File name Line number Starting address\n"));
2560 if (do_wide || strlen ((char *) directory_table[0]) < 76)
2562 printf (_("CU: %s/%s:\n"), directory_table[0],
2563 file_table[0].name);
2567 printf (_("%s:\n"), file_table[0].name);
2569 printf (_("File name Line number Starting address\n"));
2573 /* Skip the NUL at the end of the table. */
2576 /* This loop iterates through the Dwarf Line Number Program. */
2577 while (data < end_of_sequence)
2579 unsigned char op_code;
2581 unsigned long int uladv;
2582 unsigned int bytes_read;
2583 int is_special_opcode = 0;
2586 prev_line = state_machine_regs.line;
2588 if (op_code >= info.li_opcode_base)
2590 op_code -= info.li_opcode_base;
2591 uladv = (op_code / info.li_line_range) * info.li_min_insn_length;
2592 state_machine_regs.address += uladv;
2594 adv = (op_code % info.li_line_range) + info.li_line_base;
2595 state_machine_regs.line += adv;
2596 is_special_opcode = 1;
2598 else switch (op_code)
2600 case DW_LNS_extended_op:
2602 unsigned int ext_op_code_len;
2603 unsigned int bytes_read;
2604 unsigned char ext_op_code;
2605 unsigned char *op_code_data = data;
2607 ext_op_code_len = read_leb128 (op_code_data, &bytes_read, 0);
2608 op_code_data += bytes_read;
2610 if (ext_op_code_len == 0)
2612 warn (_("badly formed extended line op encountered!\n"));
2615 ext_op_code_len += bytes_read;
2616 ext_op_code = *op_code_data++;
2618 switch (ext_op_code)
2620 case DW_LNE_end_sequence:
2621 reset_state_machine (info.li_default_is_stmt);
2623 case DW_LNE_set_address:
2624 state_machine_regs.address =
2625 byte_get (op_code_data, ext_op_code_len - bytes_read - 1);
2627 case DW_LNE_define_file:
2629 unsigned int dir_index = 0;
2631 ++state_machine_regs.last_file_entry;
2632 op_code_data += strlen ((char *) op_code_data) + 1;
2633 dir_index = read_leb128 (op_code_data, & bytes_read, 0);
2634 op_code_data += bytes_read;
2635 read_leb128 (op_code_data, & bytes_read, 0);
2636 op_code_data += bytes_read;
2637 read_leb128 (op_code_data, & bytes_read, 0);
2639 printf (_("%s:\n"), directory_table[dir_index]);
2643 printf (_("UNKNOWN: length %d\n"), ext_op_code_len - bytes_read);
2646 data += ext_op_code_len;
2652 case DW_LNS_advance_pc:
2653 uladv = read_leb128 (data, & bytes_read, 0);
2654 uladv *= info.li_min_insn_length;
2656 state_machine_regs.address += uladv;
2659 case DW_LNS_advance_line:
2660 adv = read_leb128 (data, & bytes_read, 1);
2662 state_machine_regs.line += adv;
2665 case DW_LNS_set_file:
2666 adv = read_leb128 (data, & bytes_read, 0);
2668 state_machine_regs.file = adv;
2669 if (file_table[state_machine_regs.file - 1].directory_index == 0)
2671 /* If directory index is 0, that means current directory. */
2672 printf (_("\n./%s:[++]\n"),
2673 file_table[state_machine_regs.file - 1].name);
2677 /* The directory index starts counting at 1. */
2678 printf (_("\n%s/%s:\n"),
2679 directory_table[file_table[state_machine_regs.file - 1].directory_index - 1],
2680 file_table[state_machine_regs.file - 1].name);
2684 case DW_LNS_set_column:
2685 uladv = read_leb128 (data, & bytes_read, 0);
2687 state_machine_regs.column = uladv;
2690 case DW_LNS_negate_stmt:
2691 adv = state_machine_regs.is_stmt;
2693 state_machine_regs.is_stmt = adv;
2696 case DW_LNS_set_basic_block:
2697 state_machine_regs.basic_block = 1;
2700 case DW_LNS_const_add_pc:
2701 uladv = (((255 - info.li_opcode_base) / info.li_line_range)
2702 * info.li_min_insn_length);
2703 state_machine_regs.address += uladv;
2706 case DW_LNS_fixed_advance_pc:
2707 uladv = byte_get (data, 2);
2709 state_machine_regs.address += uladv;
2712 case DW_LNS_set_prologue_end:
2715 case DW_LNS_set_epilogue_begin:
2718 case DW_LNS_set_isa:
2719 uladv = read_leb128 (data, & bytes_read, 0);
2721 printf (_(" Set ISA to %lu\n"), uladv);
2725 printf (_(" Unknown opcode %d with operands: "), op_code);
2727 for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
2729 printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0),
2730 i == 1 ? "" : ", ");
2737 /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row
2738 to the DWARF address/line matrix. */
2739 if ((is_special_opcode) || (op_code == DW_LNE_end_sequence)
2740 || (op_code == DW_LNS_copy))
2742 const unsigned int MAX_FILENAME_LENGTH = 35;
2743 char *fileName = (char *)file_table[state_machine_regs.file - 1].name;
2744 char *newFileName = NULL;
2745 size_t fileNameLength = strlen (fileName);
2747 if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide))
2749 newFileName = xmalloc (MAX_FILENAME_LENGTH + 1);
2750 /* Truncate file name */
2751 strncpy (newFileName,
2752 fileName + fileNameLength - MAX_FILENAME_LENGTH,
2753 MAX_FILENAME_LENGTH + 1);
2757 newFileName = xmalloc (fileNameLength + 1);
2758 strncpy (newFileName, fileName, fileNameLength + 1);
2761 if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH))
2763 printf (_("%-35s %11d %#18lx\n"), newFileName,
2764 state_machine_regs.line, state_machine_regs.address);
2768 printf (_("%s %11d %#18lx\n"), newFileName,
2769 state_machine_regs.line, state_machine_regs.address);
2772 if (op_code == DW_LNE_end_sequence)
2780 free (directory_table);
2781 directory_table = NULL;
2789 display_debug_lines (struct dwarf_section *section, void *file)
2791 unsigned char *data = section->start;
2792 unsigned char *end = data + section->size;
2794 int retValDecoded = 1;
2796 if (load_debug_info (file) == 0)
2798 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
2803 if (do_debug_lines & FLAG_DEBUG_LINES_RAW)
2804 retValRaw = display_debug_lines_raw (section, data, end);
2806 if (do_debug_lines & FLAG_DEBUG_LINES_DECODED)
2807 retValDecoded = display_debug_lines_decoded (section, data, end);
2809 if (!retValRaw || !retValDecoded)
2816 find_debug_info_for_offset (unsigned long offset)
2820 if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
2823 for (i = 0; i < num_debug_info_entries; i++)
2824 if (debug_information[i].cu_offset == offset)
2825 return debug_information + i;
2831 display_debug_pubnames (struct dwarf_section *section,
2832 void *file ATTRIBUTE_UNUSED)
2834 DWARF2_Internal_PubNames pubnames;
2835 unsigned char *start = section->start;
2836 unsigned char *end = start + section->size;
2838 /* It does not matter if this load fails,
2839 we test for that later on. */
2840 load_debug_info (file);
2842 printf (_("Contents of the %s section:\n\n"), section->name);
2846 unsigned char *data;
2847 unsigned long offset;
2848 int offset_size, initial_length_size;
2852 pubnames.pn_length = byte_get (data, 4);
2854 if (pubnames.pn_length == 0xffffffff)
2856 pubnames.pn_length = byte_get (data, 8);
2859 initial_length_size = 12;
2864 initial_length_size = 4;
2867 pubnames.pn_version = byte_get (data, 2);
2870 pubnames.pn_offset = byte_get (data, offset_size);
2871 data += offset_size;
2873 if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
2874 && num_debug_info_entries > 0
2875 && find_debug_info_for_offset (pubnames.pn_offset) == NULL)
2876 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
2877 pubnames.pn_offset, section->name);
2879 pubnames.pn_size = byte_get (data, offset_size);
2880 data += offset_size;
2882 start += pubnames.pn_length + initial_length_size;
2884 if (pubnames.pn_version != 2 && pubnames.pn_version != 3)
2886 static int warned = 0;
2890 warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
2897 printf (_(" Length: %ld\n"),
2898 pubnames.pn_length);
2899 printf (_(" Version: %d\n"),
2900 pubnames.pn_version);
2901 printf (_(" Offset into .debug_info section: 0x%lx\n"),
2902 pubnames.pn_offset);
2903 printf (_(" Size of area in .debug_info section: %ld\n"),
2906 printf (_("\n Offset\tName\n"));
2910 offset = byte_get (data, offset_size);
2914 data += offset_size;
2915 printf (" %-6lx\t%s\n", offset, data);
2916 data += strlen ((char *) data) + 1;
2919 while (offset != 0);
2927 display_debug_macinfo (struct dwarf_section *section,
2928 void *file ATTRIBUTE_UNUSED)
2930 unsigned char *start = section->start;
2931 unsigned char *end = start + section->size;
2932 unsigned char *curr = start;
2933 unsigned int bytes_read;
2934 enum dwarf_macinfo_record_type op;
2936 printf (_("Contents of the %s section:\n\n"), section->name);
2940 unsigned int lineno;
2948 case DW_MACINFO_start_file:
2950 unsigned int filenum;
2952 lineno = read_leb128 (curr, & bytes_read, 0);
2954 filenum = read_leb128 (curr, & bytes_read, 0);
2957 printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"),
2962 case DW_MACINFO_end_file:
2963 printf (_(" DW_MACINFO_end_file\n"));
2966 case DW_MACINFO_define:
2967 lineno = read_leb128 (curr, & bytes_read, 0);
2969 string = (char *) curr;
2970 curr += strlen (string) + 1;
2971 printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"),
2975 case DW_MACINFO_undef:
2976 lineno = read_leb128 (curr, & bytes_read, 0);
2978 string = (char *) curr;
2979 curr += strlen (string) + 1;
2980 printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"),
2984 case DW_MACINFO_vendor_ext:
2986 unsigned int constant;
2988 constant = read_leb128 (curr, & bytes_read, 0);
2990 string = (char *) curr;
2991 curr += strlen (string) + 1;
2992 printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"),
3003 display_debug_abbrev (struct dwarf_section *section,
3004 void *file ATTRIBUTE_UNUSED)
3006 abbrev_entry *entry;
3007 unsigned char *start = section->start;
3008 unsigned char *end = start + section->size;
3010 printf (_("Contents of the %s section:\n\n"), section->name);
3016 start = process_abbrev_section (start, end);
3018 if (first_abbrev == NULL)
3021 printf (_(" Number TAG\n"));
3023 for (entry = first_abbrev; entry; entry = entry->next)
3027 printf (_(" %ld %s [%s]\n"),
3029 get_TAG_name (entry->tag),
3030 entry->children ? _("has children") : _("no children"));
3032 for (attr = entry->first_attr; attr; attr = attr->next)
3033 printf (_(" %-18s %s\n"),
3034 get_AT_name (attr->attribute),
3035 get_FORM_name (attr->form));
3046 display_debug_loc (struct dwarf_section *section, void *file)
3048 unsigned char *start = section->start;
3049 unsigned char *section_end;
3050 unsigned long bytes;
3051 unsigned char *section_begin = start;
3052 unsigned int num_loc_list = 0;
3053 unsigned long last_offset = 0;
3054 unsigned int first = 0;
3057 int seen_first_offset = 0;
3058 int use_debug_info = 1;
3059 unsigned char *next;
3061 bytes = section->size;
3062 section_end = start + bytes;
3066 printf (_("\nThe %s section is empty.\n"), section->name);
3070 if (load_debug_info (file) == 0)
3072 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
3077 /* Check the order of location list in .debug_info section. If
3078 offsets of location lists are in the ascending order, we can
3079 use `debug_information' directly. */
3080 for (i = 0; i < num_debug_info_entries; i++)
3084 num = debug_information [i].num_loc_offsets;
3085 num_loc_list += num;
3087 /* Check if we can use `debug_information' directly. */
3088 if (use_debug_info && num != 0)
3090 if (!seen_first_offset)
3092 /* This is the first location list. */
3093 last_offset = debug_information [i].loc_offsets [0];
3095 seen_first_offset = 1;
3101 for (; j < num; j++)
3104 debug_information [i].loc_offsets [j])
3109 last_offset = debug_information [i].loc_offsets [j];
3114 if (!use_debug_info)
3115 /* FIXME: Should we handle this case? */
3116 error (_("Location lists in .debug_info section aren't in ascending order!\n"));
3118 if (!seen_first_offset)
3119 error (_("No location lists in .debug_info section!\n"));
3121 /* DWARF sections under Mach-O have non-zero addresses. */
3122 if (debug_information [first].num_loc_offsets > 0
3123 && debug_information [first].loc_offsets [0] != section->address)
3124 warn (_("Location lists in %s section start at 0x%lx\n"),
3125 section->name, debug_information [first].loc_offsets [0]);
3127 printf (_("Contents of the %s section:\n\n"), section->name);
3128 printf (_(" Offset Begin End Expression\n"));
3130 seen_first_offset = 0;
3131 for (i = first; i < num_debug_info_entries; i++)
3135 unsigned short length;
3136 unsigned long offset;
3137 unsigned int pointer_size;
3138 unsigned long cu_offset;
3139 unsigned long base_address;
3140 int need_frame_base;
3143 pointer_size = debug_information [i].pointer_size;
3144 cu_offset = debug_information [i].cu_offset;
3146 for (j = 0; j < debug_information [i].num_loc_offsets; j++)
3148 has_frame_base = debug_information [i].have_frame_base [j];
3149 /* DWARF sections under Mach-O have non-zero addresses. */
3150 offset = debug_information [i].loc_offsets [j] - section->address;
3151 next = section_begin + offset;
3152 base_address = debug_information [i].base_address;
3154 if (!seen_first_offset)
3155 seen_first_offset = 1;
3159 warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
3160 (unsigned long) (start - section_begin),
3161 (unsigned long) (next - section_begin));
3162 else if (start > next)
3163 warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
3164 (unsigned long) (start - section_begin),
3165 (unsigned long) (next - section_begin));
3169 if (offset >= bytes)
3171 warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"),
3178 if (start + 2 * pointer_size > section_end)
3180 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
3185 /* Note: we use sign extension here in order to be sure that
3186 we can detect the -1 escape value. Sign extension into the
3187 top 32 bits of a 32-bit address will not affect the values
3188 that we display since we always show hex values, and always
3189 the bottom 32-bits. */
3190 begin = byte_get_signed (start, pointer_size);
3191 start += pointer_size;
3192 end = byte_get_signed (start, pointer_size);
3193 start += pointer_size;
3195 printf (" %8.8lx ", offset);
3197 if (begin == 0 && end == 0)
3199 printf (_("<End of list>\n"));
3203 /* Check base address specifiers. */
3204 if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1)
3207 print_dwarf_vma (begin, pointer_size);
3208 print_dwarf_vma (end, pointer_size);
3209 printf (_("(base address)\n"));
3213 if (start + 2 > section_end)
3215 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
3220 length = byte_get (start, 2);
3223 if (start + length > section_end)
3225 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
3230 print_dwarf_vma (begin + base_address, pointer_size);
3231 print_dwarf_vma (end + base_address, pointer_size);
3234 need_frame_base = decode_location_expression (start,
3237 cu_offset, section);
3240 if (need_frame_base && !has_frame_base)
3241 printf (_(" [without DW_AT_frame_base]"));
3244 fputs (_(" (start == end)"), stdout);
3245 else if (begin > end)
3246 fputs (_(" (start > end)"), stdout);
3255 if (start < section_end)
3256 warn (_("There are %ld unused bytes at the end of section %s\n"),
3257 (long) (section_end - start), section->name);
3263 display_debug_str (struct dwarf_section *section,
3264 void *file ATTRIBUTE_UNUSED)
3266 unsigned char *start = section->start;
3267 unsigned long bytes = section->size;
3268 dwarf_vma addr = section->address;
3272 printf (_("\nThe %s section is empty.\n"), section->name);
3276 printf (_("Contents of the %s section:\n\n"), section->name);
3284 lbytes = (bytes > 16 ? 16 : bytes);
3286 printf (" 0x%8.8lx ", (unsigned long) addr);
3288 for (j = 0; j < 16; j++)
3291 printf ("%2.2x", start[j]);
3299 for (j = 0; j < lbytes; j++)
3302 if (k >= ' ' && k < 0x80)
3321 display_debug_info (struct dwarf_section *section, void *file)
3323 return process_debug_info (section, file, 0);
3328 display_debug_aranges (struct dwarf_section *section,
3329 void *file ATTRIBUTE_UNUSED)
3331 unsigned char *start = section->start;
3332 unsigned char *end = start + section->size;
3334 printf (_("Contents of the %s section:\n\n"), section->name);
3336 /* It does not matter if this load fails,
3337 we test for that later on. */
3338 load_debug_info (file);
3342 unsigned char *hdrptr;
3343 DWARF2_Internal_ARange arange;
3344 unsigned char *ranges;
3347 unsigned char address_size;
3350 int initial_length_size;
3354 arange.ar_length = byte_get (hdrptr, 4);
3357 if (arange.ar_length == 0xffffffff)
3359 arange.ar_length = byte_get (hdrptr, 8);
3362 initial_length_size = 12;
3367 initial_length_size = 4;
3370 arange.ar_version = byte_get (hdrptr, 2);
3373 arange.ar_info_offset = byte_get (hdrptr, offset_size);
3374 hdrptr += offset_size;
3376 if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
3377 && num_debug_info_entries > 0
3378 && find_debug_info_for_offset (arange.ar_info_offset) == NULL)
3379 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
3380 arange.ar_info_offset, section->name);
3382 arange.ar_pointer_size = byte_get (hdrptr, 1);
3385 arange.ar_segment_size = byte_get (hdrptr, 1);
3388 if (arange.ar_version != 2 && arange.ar_version != 3)
3390 warn (_("Only DWARF 2 and 3 aranges are currently supported.\n"));
3394 printf (_(" Length: %ld\n"), arange.ar_length);
3395 printf (_(" Version: %d\n"), arange.ar_version);
3396 printf (_(" Offset into .debug_info: 0x%lx\n"), arange.ar_info_offset);
3397 printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size);
3398 printf (_(" Segment Size: %d\n"), arange.ar_segment_size);
3400 address_size = arange.ar_pointer_size + arange.ar_segment_size;
3402 /* The DWARF spec does not require that the address size be a power
3403 of two, but we do. This will have to change if we ever encounter
3404 an uneven architecture. */
3405 if ((address_size & (address_size - 1)) != 0)
3407 warn (_("Pointer size + Segment size is not a power of two.\n"));
3411 if (address_size > 4)
3412 printf (_("\n Address Length\n"));
3414 printf (_("\n Address Length\n"));
3418 /* Must pad to an alignment boundary that is twice the address size. */
3419 excess = (hdrptr - start) % (2 * address_size);
3421 ranges += (2 * address_size) - excess;
3423 start += arange.ar_length + initial_length_size;
3425 while (ranges + 2 * address_size <= start)
3427 address = byte_get (ranges, address_size);
3429 ranges += address_size;
3431 length = byte_get (ranges, address_size);
3433 ranges += address_size;
3436 print_dwarf_vma (address, address_size);
3437 print_dwarf_vma (length, address_size);
3448 display_debug_ranges (struct dwarf_section *section,
3449 void *file ATTRIBUTE_UNUSED)
3451 unsigned char *start = section->start;
3452 unsigned char *section_end;
3453 unsigned long bytes;
3454 unsigned char *section_begin = start;
3455 unsigned int num_range_list = 0;
3456 unsigned long last_offset = 0;
3457 unsigned int first = 0;
3460 int seen_first_offset = 0;
3461 int use_debug_info = 1;
3462 unsigned char *next;
3464 bytes = section->size;
3465 section_end = start + bytes;
3469 printf (_("\nThe %s section is empty.\n"), section->name);
3473 if (load_debug_info (file) == 0)
3475 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
3480 /* Check the order of range list in .debug_info section. If
3481 offsets of range lists are in the ascending order, we can
3482 use `debug_information' directly. */
3483 for (i = 0; i < num_debug_info_entries; i++)
3487 num = debug_information [i].num_range_lists;
3488 num_range_list += num;
3490 /* Check if we can use `debug_information' directly. */
3491 if (use_debug_info && num != 0)
3493 if (!seen_first_offset)
3495 /* This is the first range list. */
3496 last_offset = debug_information [i].range_lists [0];
3498 seen_first_offset = 1;
3504 for (; j < num; j++)
3507 debug_information [i].range_lists [j])
3512 last_offset = debug_information [i].range_lists [j];
3517 if (!use_debug_info)
3518 /* FIXME: Should we handle this case? */
3519 error (_("Range lists in .debug_info section aren't in ascending order!\n"));
3521 if (!seen_first_offset)
3522 error (_("No range lists in .debug_info section!\n"));
3524 /* DWARF sections under Mach-O have non-zero addresses. */
3525 if (debug_information [first].num_range_lists > 0
3526 && debug_information [first].range_lists [0] != section->address)
3527 warn (_("Range lists in %s section start at 0x%lx\n"),
3528 section->name, debug_information [first].range_lists [0]);
3530 printf (_("Contents of the %s section:\n\n"), section->name);
3531 printf (_(" Offset Begin End\n"));
3533 seen_first_offset = 0;
3534 for (i = first; i < num_debug_info_entries; i++)
3538 unsigned long offset;
3539 unsigned int pointer_size;
3540 unsigned long base_address;
3542 pointer_size = debug_information [i].pointer_size;
3544 for (j = 0; j < debug_information [i].num_range_lists; j++)
3546 /* DWARF sections under Mach-O have non-zero addresses. */
3547 offset = debug_information [i].range_lists [j] - section->address;
3548 next = section_begin + offset;
3549 base_address = debug_information [i].base_address;
3551 if (!seen_first_offset)
3552 seen_first_offset = 1;
3556 warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
3557 (unsigned long) (start - section_begin),
3558 (unsigned long) (next - section_begin), section->name);
3559 else if (start > next)
3560 warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
3561 (unsigned long) (start - section_begin),
3562 (unsigned long) (next - section_begin), section->name);
3568 /* Note: we use sign extension here in order to be sure that
3569 we can detect the -1 escape value. Sign extension into the
3570 top 32 bits of a 32-bit address will not affect the values
3571 that we display since we always show hex values, and always
3572 the bottom 32-bits. */
3573 begin = byte_get_signed (start, pointer_size);
3574 start += pointer_size;
3575 end = byte_get_signed (start, pointer_size);
3576 start += pointer_size;
3578 printf (" %8.8lx ", offset);
3580 if (begin == 0 && end == 0)
3582 printf (_("<End of list>\n"));
3586 /* Check base address specifiers. */
3587 if (begin == (dwarf_vma) -1 && end != (dwarf_vma) -1)
3590 print_dwarf_vma (begin, pointer_size);
3591 print_dwarf_vma (end, pointer_size);
3592 printf ("(base address)\n");
3596 print_dwarf_vma (begin + base_address, pointer_size);
3597 print_dwarf_vma (end + base_address, pointer_size);
3600 fputs (_("(start == end)"), stdout);
3601 else if (begin > end)
3602 fputs (_("(start > end)"), stdout);
3612 typedef struct Frame_Chunk
3614 struct Frame_Chunk *next;
3615 unsigned char *chunk_start;
3617 /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */
3618 short int *col_type;
3621 unsigned int code_factor;
3623 unsigned long pc_begin;
3624 unsigned long pc_range;
3628 unsigned char fde_encoding;
3629 unsigned char cfa_exp;
3633 static const char *const *dwarf_regnames;
3634 static unsigned int dwarf_regnames_count;
3636 /* A marker for a col_type that means this column was never referenced
3637 in the frame info. */
3638 #define DW_CFA_unreferenced (-1)
3640 /* Return 0 if not more space is needed, 1 if more space is needed,
3641 -1 for invalid reg. */
3644 frame_need_space (Frame_Chunk *fc, unsigned int reg)
3646 int prev = fc->ncols;
3648 if (reg < (unsigned int) fc->ncols)
3651 if (dwarf_regnames_count
3652 && reg > dwarf_regnames_count)
3655 fc->ncols = reg + 1;
3656 fc->col_type = xcrealloc (fc->col_type, fc->ncols, sizeof (short int));
3657 fc->col_offset = xcrealloc (fc->col_offset, fc->ncols, sizeof (int));
3659 while (prev < fc->ncols)
3661 fc->col_type[prev] = DW_CFA_unreferenced;
3662 fc->col_offset[prev] = 0;
3668 static const char *const dwarf_regnames_i386[] =
3670 "eax", "ecx", "edx", "ebx",
3671 "esp", "ebp", "esi", "edi",
3672 "eip", "eflags", NULL,
3673 "st0", "st1", "st2", "st3",
3674 "st4", "st5", "st6", "st7",
3676 "xmm0", "xmm1", "xmm2", "xmm3",
3677 "xmm4", "xmm5", "xmm6", "xmm7",
3678 "mm0", "mm1", "mm2", "mm3",
3679 "mm4", "mm5", "mm6", "mm7",
3680 "fcw", "fsw", "mxcsr",
3681 "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL,
3685 static const char *const dwarf_regnames_x86_64[] =
3687 "rax", "rdx", "rcx", "rbx",
3688 "rsi", "rdi", "rbp", "rsp",
3689 "r8", "r9", "r10", "r11",
3690 "r12", "r13", "r14", "r15",
3692 "xmm0", "xmm1", "xmm2", "xmm3",
3693 "xmm4", "xmm5", "xmm6", "xmm7",
3694 "xmm8", "xmm9", "xmm10", "xmm11",
3695 "xmm12", "xmm13", "xmm14", "xmm15",
3696 "st0", "st1", "st2", "st3",
3697 "st4", "st5", "st6", "st7",
3698 "mm0", "mm1", "mm2", "mm3",
3699 "mm4", "mm5", "mm6", "mm7",
3701 "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL,
3702 "fs.base", "gs.base", NULL, NULL,
3704 "mxcsr", "fcw", "fsw"
3708 init_dwarf_regnames (unsigned int e_machine)
3714 dwarf_regnames = dwarf_regnames_i386;
3715 dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386);
3719 dwarf_regnames = dwarf_regnames_x86_64;
3720 dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64);
3729 regname (unsigned int regno, int row)
3731 static char reg[64];
3733 && regno < dwarf_regnames_count
3734 && dwarf_regnames [regno] != NULL)
3737 return dwarf_regnames [regno];
3738 snprintf (reg, sizeof (reg), "r%d (%s)", regno,
3739 dwarf_regnames [regno]);
3742 snprintf (reg, sizeof (reg), "r%d", regno);
3747 frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs)
3752 if (*max_regs < fc->ncols)
3753 *max_regs = fc->ncols;
3755 if (*need_col_headers)
3757 static const char *loc = " LOC";
3759 *need_col_headers = 0;
3761 printf ("%-*s CFA ", eh_addr_size * 2, loc);
3763 for (r = 0; r < *max_regs; r++)
3764 if (fc->col_type[r] != DW_CFA_unreferenced)
3769 printf ("%-5s ", regname (r, 1));
3775 printf ("%0*lx ", eh_addr_size * 2, fc->pc_begin);
3777 strcpy (tmp, "exp");
3779 sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), fc->cfa_offset);
3780 printf ("%-8s ", tmp);
3782 for (r = 0; r < fc->ncols; r++)
3784 if (fc->col_type[r] != DW_CFA_unreferenced)
3786 switch (fc->col_type[r])
3788 case DW_CFA_undefined:
3791 case DW_CFA_same_value:
3795 sprintf (tmp, "c%+d", fc->col_offset[r]);
3797 case DW_CFA_val_offset:
3798 sprintf (tmp, "v%+d", fc->col_offset[r]);
3800 case DW_CFA_register:
3801 sprintf (tmp, "%s", regname (fc->col_offset[r], 0));
3803 case DW_CFA_expression:
3804 strcpy (tmp, "exp");
3806 case DW_CFA_val_expression:
3807 strcpy (tmp, "vexp");
3810 strcpy (tmp, "n/a");
3813 printf ("%-5s ", tmp);
3819 #define GET(N) byte_get (start, N); start += N
3820 #define LEB() read_leb128 (start, & length_return, 0); start += length_return
3821 #define SLEB() read_leb128 (start, & length_return, 1); start += length_return
3824 display_debug_frames (struct dwarf_section *section,
3825 void *file ATTRIBUTE_UNUSED)
3827 unsigned char *start = section->start;
3828 unsigned char *end = start + section->size;
3829 unsigned char *section_start = start;
3830 Frame_Chunk *chunks = 0;
3831 Frame_Chunk *remembered_state = 0;
3833 int is_eh = strcmp (section->name, ".eh_frame") == 0;
3834 unsigned int length_return;
3836 const char *bad_reg = _("bad register: ");
3838 printf (_("Contents of the %s section:\n"), section->name);
3842 unsigned char *saved_start;
3843 unsigned char *block_end;
3844 unsigned long length;
3845 unsigned long cie_id;
3848 int need_col_headers = 1;
3849 unsigned char *augmentation_data = NULL;
3850 unsigned long augmentation_data_len = 0;
3851 int encoded_ptr_size = eh_addr_size;
3853 int initial_length_size;
3855 saved_start = start;
3856 length = byte_get (start, 4); start += 4;
3860 printf ("\n%08lx ZERO terminator\n\n",
3861 (unsigned long)(saved_start - section_start));
3865 if (length == 0xffffffff)
3867 length = byte_get (start, 8);
3870 initial_length_size = 12;
3875 initial_length_size = 4;
3878 block_end = saved_start + length + initial_length_size;
3879 if (block_end > end)
3881 warn ("Invalid length %#08lx in FDE at %#08lx\n",
3882 length, (unsigned long)(saved_start - section_start));
3885 cie_id = byte_get (start, offset_size); start += offset_size;
3887 if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID))
3891 fc = xmalloc (sizeof (Frame_Chunk));
3892 memset (fc, 0, sizeof (Frame_Chunk));
3896 fc->chunk_start = saved_start;
3898 fc->col_type = xmalloc (sizeof (short int));
3899 fc->col_offset = xmalloc (sizeof (int));
3900 frame_need_space (fc, max_regs - 1);
3904 fc->augmentation = (char *) start;
3905 start = (unsigned char *) strchr ((char *) start, '\0') + 1;
3907 if (fc->augmentation[0] == 'z')
3909 fc->code_factor = LEB ();
3910 fc->data_factor = SLEB ();
3919 augmentation_data_len = LEB ();
3920 augmentation_data = start;
3921 start += augmentation_data_len;
3923 else if (strcmp (fc->augmentation, "eh") == 0)
3925 start += eh_addr_size;
3926 fc->code_factor = LEB ();
3927 fc->data_factor = SLEB ();
3939 fc->code_factor = LEB ();
3940 fc->data_factor = SLEB ();
3952 if (do_debug_frames_interp)
3953 printf ("\n%08lx %08lx %08lx CIE \"%s\" cf=%d df=%d ra=%d\n",
3954 (unsigned long)(saved_start - section_start), length, cie_id,
3955 fc->augmentation, fc->code_factor, fc->data_factor,
3959 printf ("\n%08lx %08lx %08lx CIE\n",
3960 (unsigned long)(saved_start - section_start), length, cie_id);
3961 printf (" Version: %d\n", version);
3962 printf (" Augmentation: \"%s\"\n", fc->augmentation);
3963 printf (" Code alignment factor: %u\n", fc->code_factor);
3964 printf (" Data alignment factor: %d\n", fc->data_factor);
3965 printf (" Return address column: %d\n", fc->ra);
3967 if (augmentation_data_len)
3970 printf (" Augmentation data: ");
3971 for (i = 0; i < augmentation_data_len; ++i)
3972 printf (" %02x", augmentation_data[i]);
3978 if (augmentation_data_len)
3980 unsigned char *p, *q;
3981 p = (unsigned char *) fc->augmentation + 1;
3982 q = augmentation_data;
3989 q += 1 + size_of_encoded_value (*q);
3991 fc->fde_encoding = *q++;
3997 if (fc->fde_encoding)
3998 encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
4001 frame_need_space (fc, fc->ra);
4005 unsigned char *look_for;
4006 static Frame_Chunk fde_fc;
4009 memset (fc, 0, sizeof (Frame_Chunk));
4011 look_for = is_eh ? start - 4 - cie_id : section_start + cie_id;
4013 for (cie = chunks; cie ; cie = cie->next)
4014 if (cie->chunk_start == look_for)
4019 warn ("Invalid CIE pointer %#08lx in FDE at %#08lx\n",
4020 cie_id, (unsigned long)(saved_start - section_start));
4022 fc->col_type = xmalloc (sizeof (short int));
4023 fc->col_offset = xmalloc (sizeof (int));
4024 frame_need_space (fc, max_regs - 1);
4026 fc->augmentation = "";
4027 fc->fde_encoding = 0;
4031 fc->ncols = cie->ncols;
4032 fc->col_type = xcmalloc (fc->ncols, sizeof (short int));
4033 fc->col_offset = xcmalloc (fc->ncols, sizeof (int));
4034 memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int));
4035 memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int));
4036 fc->augmentation = cie->augmentation;
4037 fc->code_factor = cie->code_factor;
4038 fc->data_factor = cie->data_factor;
4039 fc->cfa_reg = cie->cfa_reg;
4040 fc->cfa_offset = cie->cfa_offset;
4042 frame_need_space (fc, max_regs - 1);
4043 fc->fde_encoding = cie->fde_encoding;
4046 if (fc->fde_encoding)
4047 encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
4049 fc->pc_begin = get_encoded_value (start, fc->fde_encoding);
4050 if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel)
4051 fc->pc_begin += section->address + (start - section_start);
4052 start += encoded_ptr_size;
4053 fc->pc_range = byte_get (start, encoded_ptr_size);
4054 start += encoded_ptr_size;
4056 if (cie->augmentation[0] == 'z')
4058 augmentation_data_len = LEB ();
4059 augmentation_data = start;
4060 start += augmentation_data_len;
4063 printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=%08lx..%08lx\n",
4064 (unsigned long)(saved_start - section_start), length, cie_id,
4065 (unsigned long)(cie->chunk_start - section_start),
4066 fc->pc_begin, fc->pc_begin + fc->pc_range);
4067 if (! do_debug_frames_interp && augmentation_data_len)
4071 printf (" Augmentation data: ");
4072 for (i = 0; i < augmentation_data_len; ++i)
4073 printf (" %02x", augmentation_data[i]);
4079 /* At this point, fc is the current chunk, cie (if any) is set, and
4080 we're about to interpret instructions for the chunk. */
4081 /* ??? At present we need to do this always, since this sizes the
4082 fc->col_type and fc->col_offset arrays, which we write into always.
4083 We should probably split the interpreted and non-interpreted bits
4084 into two different routines, since there's so much that doesn't
4085 really overlap between them. */
4086 if (1 || do_debug_frames_interp)
4088 /* Start by making a pass over the chunk, allocating storage
4089 and taking note of what registers are used. */
4090 unsigned char *tmp = start;
4092 while (start < block_end)
4095 unsigned long reg, tmp;
4102 /* Warning: if you add any more cases to this switch, be
4103 sure to add them to the corresponding switch below. */
4106 case DW_CFA_advance_loc:
4110 if (frame_need_space (fc, opa) >= 0)
4111 fc->col_type[opa] = DW_CFA_undefined;
4113 case DW_CFA_restore:
4114 if (frame_need_space (fc, opa) >= 0)
4115 fc->col_type[opa] = DW_CFA_undefined;
4117 case DW_CFA_set_loc:
4118 start += encoded_ptr_size;
4120 case DW_CFA_advance_loc1:
4123 case DW_CFA_advance_loc2:
4126 case DW_CFA_advance_loc4:
4129 case DW_CFA_offset_extended:
4130 case DW_CFA_val_offset:
4131 reg = LEB (); LEB ();
4132 if (frame_need_space (fc, reg) >= 0)
4133 fc->col_type[reg] = DW_CFA_undefined;
4135 case DW_CFA_restore_extended:
4137 frame_need_space (fc, reg);
4138 if (frame_need_space (fc, reg) >= 0)
4139 fc->col_type[reg] = DW_CFA_undefined;
4141 case DW_CFA_undefined:
4143 if (frame_need_space (fc, reg) >= 0)
4144 fc->col_type[reg] = DW_CFA_undefined;
4146 case DW_CFA_same_value:
4148 if (frame_need_space (fc, reg) >= 0)
4149 fc->col_type[reg] = DW_CFA_undefined;
4151 case DW_CFA_register:
4152 reg = LEB (); LEB ();
4153 if (frame_need_space (fc, reg) >= 0)
4154 fc->col_type[reg] = DW_CFA_undefined;
4156 case DW_CFA_def_cfa:
4159 case DW_CFA_def_cfa_register:
4162 case DW_CFA_def_cfa_offset:
4165 case DW_CFA_def_cfa_expression:
4169 case DW_CFA_expression:
4170 case DW_CFA_val_expression:
4174 if (frame_need_space (fc, reg) >= 0)
4175 fc->col_type[reg] = DW_CFA_undefined;
4177 case DW_CFA_offset_extended_sf:
4178 case DW_CFA_val_offset_sf:
4179 reg = LEB (); SLEB ();
4180 if (frame_need_space (fc, reg) >= 0)
4181 fc->col_type[reg] = DW_CFA_undefined;
4183 case DW_CFA_def_cfa_sf:
4186 case DW_CFA_def_cfa_offset_sf:
4189 case DW_CFA_MIPS_advance_loc8:
4192 case DW_CFA_GNU_args_size:
4195 case DW_CFA_GNU_negative_offset_extended:
4196 reg = LEB (); LEB ();
4197 if (frame_need_space (fc, reg) >= 0)
4198 fc->col_type[reg] = DW_CFA_undefined;
4207 /* Now we know what registers are used, make a second pass over
4208 the chunk, this time actually printing out the info. */
4210 while (start < block_end)
4213 unsigned long ul, reg, roffs;
4216 const char *reg_prefix = "";
4223 /* Warning: if you add any more cases to this switch, be
4224 sure to add them to the corresponding switch above. */
4227 case DW_CFA_advance_loc:
4228 if (do_debug_frames_interp)
4229 frame_display_row (fc, &need_col_headers, &max_regs);
4231 printf (" DW_CFA_advance_loc: %d to %08lx\n",
4232 opa * fc->code_factor,
4233 fc->pc_begin + opa * fc->code_factor);
4234 fc->pc_begin += opa * fc->code_factor;
4239 if (opa >= (unsigned int) fc->ncols)
4240 reg_prefix = bad_reg;
4241 if (! do_debug_frames_interp || *reg_prefix != '\0')
4242 printf (" DW_CFA_offset: %s%s at cfa%+ld\n",
4243 reg_prefix, regname (opa, 0),
4244 roffs * fc->data_factor);
4245 if (*reg_prefix == '\0')
4247 fc->col_type[opa] = DW_CFA_offset;
4248 fc->col_offset[opa] = roffs * fc->data_factor;
4252 case DW_CFA_restore:
4253 if (opa >= (unsigned int) cie->ncols
4254 || opa >= (unsigned int) fc->ncols)
4255 reg_prefix = bad_reg;
4256 if (! do_debug_frames_interp || *reg_prefix != '\0')
4257 printf (" DW_CFA_restore: %s%s\n",
4258 reg_prefix, regname (opa, 0));
4259 if (*reg_prefix == '\0')
4261 fc->col_type[opa] = cie->col_type[opa];
4262 fc->col_offset[opa] = cie->col_offset[opa];
4266 case DW_CFA_set_loc:
4267 vma = get_encoded_value (start, fc->fde_encoding);
4268 if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel)
4269 vma += section->address + (start - section_start);
4270 start += encoded_ptr_size;
4271 if (do_debug_frames_interp)
4272 frame_display_row (fc, &need_col_headers, &max_regs);
4274 printf (" DW_CFA_set_loc: %08lx\n", (unsigned long)vma);
4278 case DW_CFA_advance_loc1:
4279 ofs = byte_get (start, 1); start += 1;
4280 if (do_debug_frames_interp)
4281 frame_display_row (fc, &need_col_headers, &max_regs);
4283 printf (" DW_CFA_advance_loc1: %ld to %08lx\n",
4284 ofs * fc->code_factor,
4285 fc->pc_begin + ofs * fc->code_factor);
4286 fc->pc_begin += ofs * fc->code_factor;
4289 case DW_CFA_advance_loc2:
4290 ofs = byte_get (start, 2); start += 2;
4291 if (do_debug_frames_interp)
4292 frame_display_row (fc, &need_col_headers, &max_regs);
4294 printf (" DW_CFA_advance_loc2: %ld to %08lx\n",
4295 ofs * fc->code_factor,
4296 fc->pc_begin + ofs * fc->code_factor);
4297 fc->pc_begin += ofs * fc->code_factor;
4300 case DW_CFA_advance_loc4:
4301 ofs = byte_get (start, 4); start += 4;
4302 if (do_debug_frames_interp)
4303 frame_display_row (fc, &need_col_headers, &max_regs);
4305 printf (" DW_CFA_advance_loc4: %ld to %08lx\n",
4306 ofs * fc->code_factor,
4307 fc->pc_begin + ofs * fc->code_factor);
4308 fc->pc_begin += ofs * fc->code_factor;
4311 case DW_CFA_offset_extended:
4314 if (reg >= (unsigned int) fc->ncols)
4315 reg_prefix = bad_reg;
4316 if (! do_debug_frames_interp || *reg_prefix != '\0')
4317 printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n",
4318 reg_prefix, regname (reg, 0),
4319 roffs * fc->data_factor);
4320 if (*reg_prefix == '\0')
4322 fc->col_type[reg] = DW_CFA_offset;
4323 fc->col_offset[reg] = roffs * fc->data_factor;
4327 case DW_CFA_val_offset:
4330 if (reg >= (unsigned int) fc->ncols)
4331 reg_prefix = bad_reg;
4332 if (! do_debug_frames_interp || *reg_prefix != '\0')
4333 printf (" DW_CFA_val_offset: %s%s at cfa%+ld\n",
4334 reg_prefix, regname (reg, 0),
4335 roffs * fc->data_factor);
4336 if (*reg_prefix == '\0')
4338 fc->col_type[reg] = DW_CFA_val_offset;
4339 fc->col_offset[reg] = roffs * fc->data_factor;
4343 case DW_CFA_restore_extended:
4345 if (reg >= (unsigned int) cie->ncols
4346 || reg >= (unsigned int) fc->ncols)
4347 reg_prefix = bad_reg;
4348 if (! do_debug_frames_interp || *reg_prefix != '\0')
4349 printf (" DW_CFA_restore_extended: %s%s\n",
4350 reg_prefix, regname (reg, 0));
4351 if (*reg_prefix == '\0')
4353 fc->col_type[reg] = cie->col_type[reg];
4354 fc->col_offset[reg] = cie->col_offset[reg];
4358 case DW_CFA_undefined:
4360 if (reg >= (unsigned int) fc->ncols)
4361 reg_prefix = bad_reg;
4362 if (! do_debug_frames_interp || *reg_prefix != '\0')
4363 printf (" DW_CFA_undefined: %s%s\n",
4364 reg_prefix, regname (reg, 0));
4365 if (*reg_prefix == '\0')
4367 fc->col_type[reg] = DW_CFA_undefined;
4368 fc->col_offset[reg] = 0;
4372 case DW_CFA_same_value:
4374 if (reg >= (unsigned int) fc->ncols)
4375 reg_prefix = bad_reg;
4376 if (! do_debug_frames_interp || *reg_prefix != '\0')
4377 printf (" DW_CFA_same_value: %s%s\n",
4378 reg_prefix, regname (reg, 0));
4379 if (*reg_prefix == '\0')
4381 fc->col_type[reg] = DW_CFA_same_value;
4382 fc->col_offset[reg] = 0;
4386 case DW_CFA_register:
4389 if (reg >= (unsigned int) fc->ncols)
4390 reg_prefix = bad_reg;
4391 if (! do_debug_frames_interp || *reg_prefix != '\0')
4393 printf (" DW_CFA_register: %s%s in ",
4394 reg_prefix, regname (reg, 0));
4395 puts (regname (roffs, 0));
4397 if (*reg_prefix == '\0')
4399 fc->col_type[reg] = DW_CFA_register;
4400 fc->col_offset[reg] = roffs;
4404 case DW_CFA_remember_state:
4405 if (! do_debug_frames_interp)
4406 printf (" DW_CFA_remember_state\n");
4407 rs = xmalloc (sizeof (Frame_Chunk));
4408 rs->ncols = fc->ncols;
4409 rs->col_type = xcmalloc (rs->ncols, sizeof (short int));
4410 rs->col_offset = xcmalloc (rs->ncols, sizeof (int));
4411 memcpy (rs->col_type, fc->col_type, rs->ncols);
4412 memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int));
4413 rs->next = remembered_state;
4414 remembered_state = rs;
4417 case DW_CFA_restore_state:
4418 if (! do_debug_frames_interp)
4419 printf (" DW_CFA_restore_state\n");
4420 rs = remembered_state;
4423 remembered_state = rs->next;
4424 frame_need_space (fc, rs->ncols - 1);
4425 memcpy (fc->col_type, rs->col_type, rs->ncols);
4426 memcpy (fc->col_offset, rs->col_offset,
4427 rs->ncols * sizeof (int));
4428 free (rs->col_type);
4429 free (rs->col_offset);
4432 else if (do_debug_frames_interp)
4433 printf ("Mismatched DW_CFA_restore_state\n");
4436 case DW_CFA_def_cfa:
4437 fc->cfa_reg = LEB ();
4438 fc->cfa_offset = LEB ();
4440 if (! do_debug_frames_interp)
4441 printf (" DW_CFA_def_cfa: %s ofs %d\n",
4442 regname (fc->cfa_reg, 0), fc->cfa_offset);
4445 case DW_CFA_def_cfa_register:
4446 fc->cfa_reg = LEB ();
4448 if (! do_debug_frames_interp)
4449 printf (" DW_CFA_def_cfa_register: %s\n",
4450 regname (fc->cfa_reg, 0));
4453 case DW_CFA_def_cfa_offset:
4454 fc->cfa_offset = LEB ();
4455 if (! do_debug_frames_interp)
4456 printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset);
4460 if (! do_debug_frames_interp)
4461 printf (" DW_CFA_nop\n");
4464 case DW_CFA_def_cfa_expression:
4466 if (! do_debug_frames_interp)
4468 printf (" DW_CFA_def_cfa_expression (");
4469 decode_location_expression (start, eh_addr_size, ul, 0,
4477 case DW_CFA_expression:
4480 if (reg >= (unsigned int) fc->ncols)
4481 reg_prefix = bad_reg;
4482 if (! do_debug_frames_interp || *reg_prefix != '\0')
4484 printf (" DW_CFA_expression: %s%s (",
4485 reg_prefix, regname (reg, 0));
4486 decode_location_expression (start, eh_addr_size,
4490 if (*reg_prefix == '\0')
4491 fc->col_type[reg] = DW_CFA_expression;
4495 case DW_CFA_val_expression:
4498 if (reg >= (unsigned int) fc->ncols)
4499 reg_prefix = bad_reg;
4500 if (! do_debug_frames_interp || *reg_prefix != '\0')
4502 printf (" DW_CFA_val_expression: %s%s (",
4503 reg_prefix, regname (reg, 0));
4504 decode_location_expression (start, eh_addr_size, ul, 0,
4508 if (*reg_prefix == '\0')
4509 fc->col_type[reg] = DW_CFA_val_expression;
4513 case DW_CFA_offset_extended_sf:
4516 if (frame_need_space (fc, reg) < 0)
4517 reg_prefix = bad_reg;
4518 if (! do_debug_frames_interp || *reg_prefix != '\0')
4519 printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n",
4520 reg_prefix, regname (reg, 0),
4521 l * fc->data_factor);
4522 if (*reg_prefix == '\0')
4524 fc->col_type[reg] = DW_CFA_offset;
4525 fc->col_offset[reg] = l * fc->data_factor;
4529 case DW_CFA_val_offset_sf:
4532 if (frame_need_space (fc, reg) < 0)
4533 reg_prefix = bad_reg;
4534 if (! do_debug_frames_interp || *reg_prefix != '\0')
4535 printf (" DW_CFA_val_offset_sf: %s%s at cfa%+ld\n",
4536 reg_prefix, regname (reg, 0),
4537 l * fc->data_factor);
4538 if (*reg_prefix == '\0')
4540 fc->col_type[reg] = DW_CFA_val_offset;
4541 fc->col_offset[reg] = l * fc->data_factor;
4545 case DW_CFA_def_cfa_sf:
4546 fc->cfa_reg = LEB ();
4547 fc->cfa_offset = SLEB ();
4548 fc->cfa_offset = fc->cfa_offset * fc->data_factor;
4550 if (! do_debug_frames_interp)
4551 printf (" DW_CFA_def_cfa_sf: %s ofs %d\n",
4552 regname (fc->cfa_reg, 0), fc->cfa_offset);
4555 case DW_CFA_def_cfa_offset_sf:
4556 fc->cfa_offset = SLEB ();
4557 fc->cfa_offset = fc->cfa_offset * fc->data_factor;
4558 if (! do_debug_frames_interp)
4559 printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset);
4562 case DW_CFA_MIPS_advance_loc8:
4563 ofs = byte_get (start, 8); start += 8;
4564 if (do_debug_frames_interp)
4565 frame_display_row (fc, &need_col_headers, &max_regs);
4567 printf (" DW_CFA_MIPS_advance_loc8: %ld to %08lx\n",
4568 ofs * fc->code_factor,
4569 fc->pc_begin + ofs * fc->code_factor);
4570 fc->pc_begin += ofs * fc->code_factor;
4573 case DW_CFA_GNU_window_save:
4574 if (! do_debug_frames_interp)
4575 printf (" DW_CFA_GNU_window_save\n");
4578 case DW_CFA_GNU_args_size:
4580 if (! do_debug_frames_interp)
4581 printf (" DW_CFA_GNU_args_size: %ld\n", ul);
4584 case DW_CFA_GNU_negative_offset_extended:
4587 if (frame_need_space (fc, reg) < 0)
4588 reg_prefix = bad_reg;
4589 if (! do_debug_frames_interp || *reg_prefix != '\0')
4590 printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n",
4591 reg_prefix, regname (reg, 0),
4592 l * fc->data_factor);
4593 if (*reg_prefix == '\0')
4595 fc->col_type[reg] = DW_CFA_offset;
4596 fc->col_offset[reg] = l * fc->data_factor;
4601 if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user)
4602 printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op);
4604 warn (_("unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op);
4609 if (do_debug_frames_interp)
4610 frame_display_row (fc, &need_col_headers, &max_regs);
4625 display_debug_not_supported (struct dwarf_section *section,
4626 void *file ATTRIBUTE_UNUSED)
4628 printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
4635 cmalloc (size_t nmemb, size_t size)
4637 /* Check for overflow. */
4638 if (nmemb >= ~(size_t) 0 / size)
4641 return malloc (nmemb * size);
4645 xcmalloc (size_t nmemb, size_t size)
4647 /* Check for overflow. */
4648 if (nmemb >= ~(size_t) 0 / size)
4651 return xmalloc (nmemb * size);
4655 xcrealloc (void *ptr, size_t nmemb, size_t size)
4657 /* Check for overflow. */
4658 if (nmemb >= ~(size_t) 0 / size)
4661 return xrealloc (ptr, nmemb * size);
4665 error (const char *message, ...)
4669 va_start (args, message);
4670 fprintf (stderr, _("%s: Error: "), program_name);
4671 vfprintf (stderr, message, args);
4676 warn (const char *message, ...)
4680 va_start (args, message);
4681 fprintf (stderr, _("%s: Warning: "), program_name);
4682 vfprintf (stderr, message, args);
4687 free_debug_memory (void)
4689 enum dwarf_section_display_enum i;
4693 for (i = 0; i < max; i++)
4694 free_debug_section (i);
4696 if (debug_information != NULL)
4698 if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE)
4700 for (i = 0; i < num_debug_info_entries; i++)
4702 if (!debug_information [i].max_loc_offsets)
4704 free (debug_information [i].loc_offsets);
4705 free (debug_information [i].have_frame_base);
4707 if (!debug_information [i].max_range_lists)
4708 free (debug_information [i].range_lists);
4712 free (debug_information);
4713 debug_information = NULL;
4714 num_debug_info_entries = 0;
4719 dwarf_select_sections_by_names (const char *names)
4723 const char * option;
4727 debug_dump_long_opts;
4729 static const debug_dump_long_opts opts_table [] =
4731 /* Please keep this table alpha- sorted. */
4732 { "Ranges", & do_debug_ranges, 1 },
4733 { "abbrev", & do_debug_abbrevs, 1 },
4734 { "aranges", & do_debug_aranges, 1 },
4735 { "frames", & do_debug_frames, 1 },
4736 { "frames-interp", & do_debug_frames_interp, 1 },
4737 { "info", & do_debug_info, 1 },
4738 { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */
4739 { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW },
4740 { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED },
4741 { "loc", & do_debug_loc, 1 },
4742 { "macro", & do_debug_macinfo, 1 },
4743 { "pubnames", & do_debug_pubnames, 1 },
4744 /* This entry is for compatability
4745 with earlier versions of readelf. */
4746 { "ranges", & do_debug_aranges, 1 },
4747 { "str", & do_debug_str, 1 },
4756 const debug_dump_long_opts * entry;
4758 for (entry = opts_table; entry->option; entry++)
4760 size_t len = strlen (entry->option);
4762 if (strncmp (p, entry->option, len) == 0
4763 && (p[len] == ',' || p[len] == '\0'))
4765 * entry->variable |= entry->val;
4767 /* The --debug-dump=frames-interp option also
4768 enables the --debug-dump=frames option. */
4769 if (do_debug_frames_interp)
4770 do_debug_frames = 1;
4777 if (entry->option == NULL)
4779 warn (_("Unrecognized debug option '%s'\n"), p);
4780 p = strchr (p, ',');
4791 dwarf_select_sections_by_letters (const char *letters)
4793 unsigned int index = 0;
4795 while (letters[index])
4796 switch (letters[index++])
4803 do_debug_abbrevs = 1;
4807 do_debug_lines |= FLAG_DEBUG_LINES_RAW;
4811 do_debug_lines |= FLAG_DEBUG_LINES_DECODED;
4815 do_debug_pubnames = 1;
4819 do_debug_aranges = 1;
4823 do_debug_ranges = 1;
4827 do_debug_frames_interp = 1;
4829 do_debug_frames = 1;
4833 do_debug_macinfo = 1;
4845 warn (_("Unrecognized debug option '%s'\n"), optarg);
4851 dwarf_select_sections_all (void)
4854 do_debug_abbrevs = 1;
4855 do_debug_lines = FLAG_DEBUG_LINES_RAW;
4856 do_debug_pubnames = 1;
4857 do_debug_aranges = 1;
4858 do_debug_ranges = 1;
4859 do_debug_frames = 1;
4860 do_debug_macinfo = 1;
4865 struct dwarf_section_display debug_displays[] =
4867 { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0 },
4868 display_debug_abbrev, &do_debug_abbrevs, 0, 0 },
4869 { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0 },
4870 display_debug_aranges, &do_debug_aranges, 1, 0 },
4871 { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0 },
4872 display_debug_frames, &do_debug_frames, 1, 0 },
4873 { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0 },
4874 display_debug_info, &do_debug_info, 1, 0 },
4875 { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0 },
4876 display_debug_lines, &do_debug_lines, 1, 0 },
4877 { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0 },
4878 display_debug_pubnames, &do_debug_pubnames, 0, 0 },
4879 { { ".eh_frame", "", NULL, NULL, 0, 0 },
4880 display_debug_frames, &do_debug_frames, 1, 1 },
4881 { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0 },
4882 display_debug_macinfo, &do_debug_macinfo, 0, 0 },
4883 { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0 },
4884 display_debug_str, &do_debug_str, 0, 0 },
4885 { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0 },
4886 display_debug_loc, &do_debug_loc, 1, 0 },
4887 { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0 },
4888 display_debug_pubnames, &do_debug_pubnames, 0, 0 },
4889 { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0 },
4890 display_debug_ranges, &do_debug_ranges, 1, 0 },
4891 { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0 },
4892 display_debug_not_supported, NULL, 0, 0 },
4893 { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0 },
4894 display_debug_not_supported, NULL, 0, 0 },
4895 { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0 },
4896 display_debug_not_supported, NULL, 0, 0 },
4897 { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0 },
4898 display_debug_not_supported, NULL, 0, 0 }