1 /* dwarf.c -- display DWARF contents of a BFD binary file
2 Copyright (C) 2005-2017 Free Software Foundation, Inc.
4 This file is part of GNU Binutils.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
22 #include "libiberty.h"
24 #include "bfd_stdint.h"
27 #include "elf/common.h"
30 #include "gdb/gdb-index.h"
32 static const char *regname (unsigned int regno, int row);
34 static int have_frame_base;
35 static int need_base_address;
37 static unsigned int last_pointer_size = 0;
38 static int warned_about_missing_comp_units = FALSE;
40 static unsigned int num_debug_info_entries = 0;
41 static unsigned int alloc_num_debug_info_entries = 0;
42 static debug_info *debug_information = NULL;
43 /* Special value for num_debug_info_entries to indicate
44 that the .debug_info section could not be loaded/parsed. */
45 #define DEBUG_INFO_UNAVAILABLE (unsigned int) -1
47 unsigned int eh_addr_size;
52 int do_debug_pubnames;
53 int do_debug_pubtypes;
57 int do_debug_frames_interp;
66 int do_debug_cu_index;
69 int dwarf_cutoff_level = -1;
70 unsigned long dwarf_start_die;
74 /* Collection of CU/TU section sets from .debug_cu_index and .debug_tu_index
75 sections. For version 1 package files, each set is stored in SHNDX_POOL
76 as a zero-terminated list of section indexes comprising one set of debug
77 sections from a .dwo file. */
79 static unsigned int *shndx_pool = NULL;
80 static unsigned int shndx_pool_size = 0;
81 static unsigned int shndx_pool_used = 0;
83 /* For version 2 package files, each set contains an array of section offsets
84 and an array of section sizes, giving the offset and size of the
85 contribution from a CU or TU within one of the debug sections.
86 When displaying debug info from a package file, we need to use these
87 tables to locate the corresponding contributions to each section. */
92 dwarf_vma section_offsets[DW_SECT_MAX];
93 size_t section_sizes[DW_SECT_MAX];
96 static int cu_count = 0;
97 static int tu_count = 0;
98 static struct cu_tu_set *cu_sets = NULL;
99 static struct cu_tu_set *tu_sets = NULL;
101 static bfd_boolean load_cu_tu_indexes (void *);
103 /* Values for do_debug_lines. */
104 #define FLAG_DEBUG_LINES_RAW 1
105 #define FLAG_DEBUG_LINES_DECODED 2
108 size_of_encoded_value (int encoding)
110 switch (encoding & 0x7)
113 case 0: return eh_addr_size;
121 get_encoded_value (unsigned char **pdata,
123 struct dwarf_section *section,
126 unsigned char * data = * pdata;
127 unsigned int size = size_of_encoded_value (encoding);
130 if (data + size >= end)
132 warn (_("Encoded value extends past end of section\n"));
137 /* PR 17512: file: 002-829853-0.004. */
140 warn (_("Encoded size of %d is too large to read\n"), size);
145 /* PR 17512: file: 1085-5603-0.004. */
148 warn (_("Encoded size of 0 is too small to read\n"));
153 if (encoding & DW_EH_PE_signed)
154 val = byte_get_signed (data, size);
156 val = byte_get (data, size);
158 if ((encoding & 0x70) == DW_EH_PE_pcrel)
159 val += section->address + (data - section->start);
161 * pdata = data + size;
165 #if defined HAVE_LONG_LONG && SIZEOF_LONG_LONG > SIZEOF_LONG
167 # define DWARF_VMA_FMT "ll"
168 # define DWARF_VMA_FMT_LONG "%16.16llx"
170 # define DWARF_VMA_FMT "I64"
171 # define DWARF_VMA_FMT_LONG "%016I64x"
174 # define DWARF_VMA_FMT "l"
175 # define DWARF_VMA_FMT_LONG "%16.16lx"
178 /* Convert a dwarf vma value into a string. Returns a pointer to a static
179 buffer containing the converted VALUE. The value is converted according
180 to the printf formating character FMTCH. If NUM_BYTES is non-zero then
181 it specifies the maximum number of bytes to be displayed in the converted
182 value and FMTCH is ignored - hex is always used. */
185 dwarf_vmatoa_1 (const char *fmtch, dwarf_vma value, unsigned num_bytes)
187 /* As dwarf_vmatoa is used more then once in a printf call
188 for output, we are cycling through an fixed array of pointers
189 for return address. */
190 static int buf_pos = 0;
191 static struct dwarf_vmatoa_buf
197 ret = buf[buf_pos++].place;
198 buf_pos %= ARRAY_SIZE (buf);
202 /* Printf does not have a way of specifying a maximum field width for an
203 integer value, so we print the full value into a buffer and then select
204 the precision we need. */
205 snprintf (ret, sizeof (buf[0].place), DWARF_VMA_FMT_LONG, value);
208 return ret + (16 - 2 * num_bytes);
214 sprintf (fmt, "%%%s%s", DWARF_VMA_FMT, fmtch);
215 snprintf (ret, sizeof (buf[0].place), fmt, value);
220 static inline const char *
221 dwarf_vmatoa (const char * fmtch, dwarf_vma value)
223 return dwarf_vmatoa_1 (fmtch, value, 0);
226 /* Print a dwarf_vma value (typically an address, offset or length) in
227 hexadecimal format, followed by a space. The length of the VALUE (and
228 hence the precision displayed) is determined by the NUM_BYTES parameter. */
231 print_dwarf_vma (dwarf_vma value, unsigned num_bytes)
233 printf ("%s ", dwarf_vmatoa_1 (NULL, value, num_bytes));
236 /* Format a 64-bit value, given as two 32-bit values, in hex.
237 For reentrancy, this uses a buffer provided by the caller. */
240 dwarf_vmatoa64 (dwarf_vma hvalue, dwarf_vma lvalue, char *buf,
241 unsigned int buf_len)
246 snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", lvalue);
249 len = snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", hvalue);
250 snprintf (buf + len, buf_len - len,
251 "%08" DWARF_VMA_FMT "x", lvalue);
257 /* Read in a LEB128 encoded value starting at address DATA.
258 If SIGN is true, return a signed LEB128 value.
259 If LENGTH_RETURN is not NULL, return in it the number of bytes read.
260 No bytes will be read at address END or beyond. */
263 read_leb128 (unsigned char *data,
264 unsigned int *length_return,
266 const unsigned char * const end)
268 dwarf_vma result = 0;
269 unsigned int num_read = 0;
270 unsigned int shift = 0;
271 unsigned char byte = 0;
278 result |= ((dwarf_vma) (byte & 0x7f)) << shift;
281 if ((byte & 0x80) == 0)
284 /* PR 17512: file: 0ca183b8.
285 FIXME: Should we signal this error somehow ? */
286 if (shift >= sizeof (result) * 8)
290 if (length_return != NULL)
291 *length_return = num_read;
293 if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40))
294 result |= -((dwarf_vma) 1 << shift);
299 /* Create a signed version to avoid painful typecasts. */
300 static inline dwarf_signed_vma
301 read_sleb128 (unsigned char * data,
302 unsigned int * length_return,
303 const unsigned char * const end)
305 return (dwarf_signed_vma) read_leb128 (data, length_return, TRUE, end);
308 static inline dwarf_vma
309 read_uleb128 (unsigned char * data,
310 unsigned int * length_return,
311 const unsigned char * const end)
313 return read_leb128 (data, length_return, FALSE, end);
316 #define SAFE_BYTE_GET(VAL, PTR, AMOUNT, END) \
319 unsigned int amount = (AMOUNT); \
320 if (sizeof (VAL) < amount) \
322 error (_("internal error: attempt to read %d bytes of data in to %d sized variable"),\
323 amount, (int) sizeof (VAL)); \
324 amount = sizeof (VAL); \
326 if (((PTR) + amount) >= (END)) \
329 amount = (END) - (PTR); \
333 if (amount == 0 || amount > 8) \
336 VAL = byte_get ((PTR), amount); \
340 #define SAFE_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \
343 SAFE_BYTE_GET (VAL, PTR, AMOUNT, END); \
348 #define SAFE_SIGNED_BYTE_GET(VAL, PTR, AMOUNT, END) \
351 unsigned int amount = (AMOUNT); \
352 if (((PTR) + amount) >= (END)) \
355 amount = (END) - (PTR); \
360 VAL = byte_get_signed ((PTR), amount); \
366 #define SAFE_SIGNED_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \
369 SAFE_SIGNED_BYTE_GET (VAL, PTR, AMOUNT, END); \
374 #define SAFE_BYTE_GET64(PTR, HIGH, LOW, END) \
377 if (((PTR) + 8) <= (END)) \
379 byte_get_64 ((PTR), (HIGH), (LOW)); \
383 * (LOW) = * (HIGH) = 0; \
388 typedef struct State_Machine_Registers
396 unsigned char op_index;
397 unsigned char end_sequence;
398 /* This variable hold the number of the last entry seen
399 in the File Table. */
400 unsigned int last_file_entry;
403 static SMR state_machine_regs;
406 reset_state_machine (int is_stmt)
408 state_machine_regs.address = 0;
409 state_machine_regs.op_index = 0;
410 state_machine_regs.file = 1;
411 state_machine_regs.line = 1;
412 state_machine_regs.column = 0;
413 state_machine_regs.is_stmt = is_stmt;
414 state_machine_regs.basic_block = 0;
415 state_machine_regs.end_sequence = 0;
416 state_machine_regs.last_file_entry = 0;
419 /* Handled an extend line op.
420 Returns the number of bytes read. */
423 process_extended_line_op (unsigned char * data,
427 unsigned char op_code;
428 unsigned int bytes_read;
431 unsigned char *orig_data = data;
434 len = read_uleb128 (data, & bytes_read, end);
437 if (len == 0 || data == end || len > (uintptr_t) (end - data))
439 warn (_("Badly formed extended line op encountered!\n"));
446 printf (_(" Extended opcode %d: "), op_code);
450 case DW_LNE_end_sequence:
451 printf (_("End of Sequence\n\n"));
452 reset_state_machine (is_stmt);
455 case DW_LNE_set_address:
456 /* PR 17512: file: 002-100480-0.004. */
457 if (len - bytes_read - 1 > 8)
459 warn (_("Length (%d) of DW_LNE_set_address op is too long\n"),
460 len - bytes_read - 1);
464 SAFE_BYTE_GET (adr, data, len - bytes_read - 1, end);
465 printf (_("set Address to 0x%s\n"), dwarf_vmatoa ("x", adr));
466 state_machine_regs.address = adr;
467 state_machine_regs.op_index = 0;
470 case DW_LNE_define_file:
471 printf (_("define new File Table entry\n"));
472 printf (_(" Entry\tDir\tTime\tSize\tName\n"));
473 printf (" %d\t", ++state_machine_regs.last_file_entry);
476 data += strnlen ((char *) data, end - data) + 1;
477 printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
479 printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
481 printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
483 printf ("%s\n\n", name);
485 if (((unsigned int) (data - orig_data) != len) || data == end)
486 warn (_("DW_LNE_define_file: Bad opcode length\n"));
489 case DW_LNE_set_discriminator:
490 printf (_("set Discriminator to %s\n"),
491 dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
495 case DW_LNE_HP_negate_is_UV_update:
496 printf ("DW_LNE_HP_negate_is_UV_update\n");
498 case DW_LNE_HP_push_context:
499 printf ("DW_LNE_HP_push_context\n");
501 case DW_LNE_HP_pop_context:
502 printf ("DW_LNE_HP_pop_context\n");
504 case DW_LNE_HP_set_file_line_column:
505 printf ("DW_LNE_HP_set_file_line_column\n");
507 case DW_LNE_HP_set_routine_name:
508 printf ("DW_LNE_HP_set_routine_name\n");
510 case DW_LNE_HP_set_sequence:
511 printf ("DW_LNE_HP_set_sequence\n");
513 case DW_LNE_HP_negate_post_semantics:
514 printf ("DW_LNE_HP_negate_post_semantics\n");
516 case DW_LNE_HP_negate_function_exit:
517 printf ("DW_LNE_HP_negate_function_exit\n");
519 case DW_LNE_HP_negate_front_end_logical:
520 printf ("DW_LNE_HP_negate_front_end_logical\n");
522 case DW_LNE_HP_define_proc:
523 printf ("DW_LNE_HP_define_proc\n");
525 case DW_LNE_HP_source_file_correlation:
527 unsigned char *edata = data + len - bytes_read - 1;
529 printf ("DW_LNE_HP_source_file_correlation\n");
535 opc = read_uleb128 (data, & bytes_read, edata);
540 case DW_LNE_HP_SFC_formfeed:
541 printf (" DW_LNE_HP_SFC_formfeed\n");
543 case DW_LNE_HP_SFC_set_listing_line:
544 printf (" DW_LNE_HP_SFC_set_listing_line (%s)\n",
546 read_uleb128 (data, & bytes_read, edata)));
549 case DW_LNE_HP_SFC_associate:
550 printf (" DW_LNE_HP_SFC_associate ");
553 read_uleb128 (data, & bytes_read, edata)));
557 read_uleb128 (data, & bytes_read, edata)));
561 read_uleb128 (data, & bytes_read, edata)));
565 printf (_(" UNKNOWN DW_LNE_HP_SFC opcode (%u)\n"), opc);
575 unsigned int rlen = len - bytes_read - 1;
577 if (op_code >= DW_LNE_lo_user
578 /* The test against DW_LNW_hi_user is redundant due to
579 the limited range of the unsigned char data type used
581 /*&& op_code <= DW_LNE_hi_user*/)
582 printf (_("user defined: "));
584 printf (_("UNKNOWN: "));
585 printf (_("length %d ["), rlen);
587 printf (" %02x", *data++);
596 static const unsigned char *
597 fetch_indirect_string (dwarf_vma offset)
599 struct dwarf_section *section = &debug_displays [str].section;
601 if (section->start == NULL)
602 return (const unsigned char *) _("<no .debug_str section>");
604 if (offset > section->size)
606 warn (_("DW_FORM_strp offset too big: %s\n"),
607 dwarf_vmatoa ("x", offset));
608 return (const unsigned char *) _("<offset is too big>");
611 return (const unsigned char *) section->start + offset;
614 static const unsigned char *
615 fetch_indirect_line_string (dwarf_vma offset)
617 struct dwarf_section *section = &debug_displays [line_str].section;
619 if (section->start == NULL)
620 return (const unsigned char *) _("<no .debug_line_str section>");
622 if (offset > section->size)
624 warn (_("DW_FORM_line_strp offset too big: %s\n"),
625 dwarf_vmatoa ("x", offset));
626 return (const unsigned char *) _("<offset is too big>");
629 return (const unsigned char *) section->start + offset;
633 fetch_indexed_string (dwarf_vma idx, struct cu_tu_set *this_set,
634 dwarf_vma offset_size, int dwo)
636 enum dwarf_section_display_enum str_sec_idx = dwo ? str_dwo : str;
637 enum dwarf_section_display_enum idx_sec_idx = dwo ? str_index_dwo : str_index;
638 struct dwarf_section *index_section = &debug_displays [idx_sec_idx].section;
639 struct dwarf_section *str_section = &debug_displays [str_sec_idx].section;
640 dwarf_vma index_offset = idx * offset_size;
641 dwarf_vma str_offset;
643 if (index_section->start == NULL)
644 return (dwo ? _("<no .debug_str_offsets.dwo section>")
645 : _("<no .debug_str_offsets section>"));
647 if (this_set != NULL)
648 index_offset += this_set->section_offsets [DW_SECT_STR_OFFSETS];
649 if (index_offset > index_section->size)
651 warn (_("DW_FORM_GNU_str_index offset too big: %s\n"),
652 dwarf_vmatoa ("x", index_offset));
653 return _("<index offset is too big>");
656 if (str_section->start == NULL)
657 return (dwo ? _("<no .debug_str.dwo section>")
658 : _("<no .debug_str section>"));
660 str_offset = byte_get (index_section->start + index_offset, offset_size);
661 str_offset -= str_section->address;
662 if (str_offset > str_section->size)
664 warn (_("DW_FORM_GNU_str_index indirect offset too big: %s\n"),
665 dwarf_vmatoa ("x", str_offset));
666 return _("<indirect index offset is too big>");
669 return (const char *) str_section->start + str_offset;
673 fetch_indexed_value (dwarf_vma offset, dwarf_vma bytes)
675 struct dwarf_section *section = &debug_displays [debug_addr].section;
677 if (section->start == NULL)
678 return (_("<no .debug_addr section>"));
680 if (offset + bytes > section->size)
682 warn (_("Offset into section %s too big: %s\n"),
683 section->name, dwarf_vmatoa ("x", offset));
684 return "<offset too big>";
687 return dwarf_vmatoa ("x", byte_get (section->start + offset, bytes));
691 /* FIXME: There are better and more efficient ways to handle
692 these structures. For now though, I just want something that
693 is simple to implement. */
694 typedef struct abbrev_attr
696 unsigned long attribute;
698 bfd_signed_vma implicit_const;
699 struct abbrev_attr *next;
703 typedef struct abbrev_entry
708 struct abbrev_attr *first_attr;
709 struct abbrev_attr *last_attr;
710 struct abbrev_entry *next;
714 static abbrev_entry *first_abbrev = NULL;
715 static abbrev_entry *last_abbrev = NULL;
722 for (abbrv = first_abbrev; abbrv;)
724 abbrev_entry *next_abbrev = abbrv->next;
727 for (attr = abbrv->first_attr; attr;)
729 abbrev_attr *next_attr = attr->next;
739 last_abbrev = first_abbrev = NULL;
743 add_abbrev (unsigned long number, unsigned long tag, int children)
747 entry = (abbrev_entry *) malloc (sizeof (*entry));
752 entry->entry = number;
754 entry->children = children;
755 entry->first_attr = NULL;
756 entry->last_attr = NULL;
759 if (first_abbrev == NULL)
760 first_abbrev = entry;
762 last_abbrev->next = entry;
768 add_abbrev_attr (unsigned long attribute, unsigned long form,
769 bfd_signed_vma implicit_const)
773 attr = (abbrev_attr *) malloc (sizeof (*attr));
778 attr->attribute = attribute;
780 attr->implicit_const = implicit_const;
783 if (last_abbrev->first_attr == NULL)
784 last_abbrev->first_attr = attr;
786 last_abbrev->last_attr->next = attr;
788 last_abbrev->last_attr = attr;
791 /* Processes the (partial) contents of a .debug_abbrev section.
792 Returns NULL if the end of the section was encountered.
793 Returns the address after the last byte read if the end of
794 an abbreviation set was found. */
796 static unsigned char *
797 process_abbrev_section (unsigned char *start, unsigned char *end)
799 if (first_abbrev != NULL)
804 unsigned int bytes_read;
807 unsigned long attribute;
810 entry = read_uleb128 (start, & bytes_read, end);
813 /* A single zero is supposed to end the section according
814 to the standard. If there's more, then signal that to
821 tag = read_uleb128 (start, & bytes_read, end);
828 add_abbrev (entry, tag, children);
833 /* Initialize it due to a false compiler warning. */
834 bfd_signed_vma implicit_const = -1;
836 attribute = read_uleb128 (start, & bytes_read, end);
841 form = read_uleb128 (start, & bytes_read, end);
846 if (form == DW_FORM_implicit_const)
848 implicit_const = read_sleb128 (start, & bytes_read, end);
854 add_abbrev_attr (attribute, form, implicit_const);
856 while (attribute != 0);
859 /* Report the missing single zero which ends the section. */
860 error (_(".debug_abbrev section not zero terminated\n"));
866 get_TAG_name (unsigned long tag)
868 const char *name = get_DW_TAG_name ((unsigned int)tag);
872 static char buffer[100];
874 snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag);
882 get_FORM_name (unsigned long form)
887 return "DW_FORM value: 0";
889 name = get_DW_FORM_name (form);
892 static char buffer[100];
894 snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form);
901 static unsigned char *
902 display_block (unsigned char *data,
904 const unsigned char * const end, char delimiter)
908 printf (_("%c%s byte block: "), delimiter, dwarf_vmatoa ("u", length));
910 return (unsigned char *) end;
912 maxlen = (dwarf_vma) (end - data);
913 length = length > maxlen ? maxlen : length;
916 printf ("%lx ", (unsigned long) byte_get (data++, 1));
922 decode_location_expression (unsigned char * data,
923 unsigned int pointer_size,
924 unsigned int offset_size,
928 struct dwarf_section * section)
931 unsigned int bytes_read;
933 dwarf_signed_vma svalue;
934 unsigned char *end = data + length;
935 int need_frame_base = 0;
944 SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
945 printf ("DW_OP_addr: %s", dwarf_vmatoa ("x", uvalue));
948 printf ("DW_OP_deref");
951 SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
952 printf ("DW_OP_const1u: %lu", (unsigned long) uvalue);
955 SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 1, end);
956 printf ("DW_OP_const1s: %ld", (long) svalue);
959 SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end);
960 printf ("DW_OP_const2u: %lu", (unsigned long) uvalue);
963 SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end);
964 printf ("DW_OP_const2s: %ld", (long) svalue);
967 SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
968 printf ("DW_OP_const4u: %lu", (unsigned long) uvalue);
971 SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end);
972 printf ("DW_OP_const4s: %ld", (long) svalue);
975 SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
976 printf ("DW_OP_const8u: %lu ", (unsigned long) uvalue);
977 SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
978 printf ("%lu", (unsigned long) uvalue);
981 SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end);
982 printf ("DW_OP_const8s: %ld ", (long) svalue);
983 SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end);
984 printf ("%ld", (long) svalue);
987 printf ("DW_OP_constu: %s",
988 dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
992 printf ("DW_OP_consts: %s",
993 dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end)));
997 printf ("DW_OP_dup");
1000 printf ("DW_OP_drop");
1003 printf ("DW_OP_over");
1006 SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
1007 printf ("DW_OP_pick: %ld", (unsigned long) uvalue);
1010 printf ("DW_OP_swap");
1013 printf ("DW_OP_rot");
1016 printf ("DW_OP_xderef");
1019 printf ("DW_OP_abs");
1022 printf ("DW_OP_and");
1025 printf ("DW_OP_div");
1028 printf ("DW_OP_minus");
1031 printf ("DW_OP_mod");
1034 printf ("DW_OP_mul");
1037 printf ("DW_OP_neg");
1040 printf ("DW_OP_not");
1043 printf ("DW_OP_or");
1046 printf ("DW_OP_plus");
1048 case DW_OP_plus_uconst:
1049 printf ("DW_OP_plus_uconst: %s",
1050 dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
1054 printf ("DW_OP_shl");
1057 printf ("DW_OP_shr");
1060 printf ("DW_OP_shra");
1063 printf ("DW_OP_xor");
1066 SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end);
1067 printf ("DW_OP_bra: %ld", (long) svalue);
1070 printf ("DW_OP_eq");
1073 printf ("DW_OP_ge");
1076 printf ("DW_OP_gt");
1079 printf ("DW_OP_le");
1082 printf ("DW_OP_lt");
1085 printf ("DW_OP_ne");
1088 SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end);
1089 printf ("DW_OP_skip: %ld", (long) svalue);
1124 printf ("DW_OP_lit%d", op - DW_OP_lit0);
1159 printf ("DW_OP_reg%d (%s)", op - DW_OP_reg0,
1160 regname (op - DW_OP_reg0, 1));
1195 printf ("DW_OP_breg%d (%s): %s",
1197 regname (op - DW_OP_breg0, 1),
1198 dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end)));
1203 uvalue = read_uleb128 (data, &bytes_read, end);
1205 printf ("DW_OP_regx: %s (%s)",
1206 dwarf_vmatoa ("u", uvalue), regname (uvalue, 1));
1209 need_frame_base = 1;
1210 printf ("DW_OP_fbreg: %s",
1211 dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end)));
1215 uvalue = read_uleb128 (data, &bytes_read, end);
1217 printf ("DW_OP_bregx: %s (%s) %s",
1218 dwarf_vmatoa ("u", uvalue), regname (uvalue, 1),
1219 dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end)));
1223 printf ("DW_OP_piece: %s",
1224 dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
1227 case DW_OP_deref_size:
1228 SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
1229 printf ("DW_OP_deref_size: %ld", (long) uvalue);
1231 case DW_OP_xderef_size:
1232 SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
1233 printf ("DW_OP_xderef_size: %ld", (long) uvalue);
1236 printf ("DW_OP_nop");
1239 /* DWARF 3 extensions. */
1240 case DW_OP_push_object_address:
1241 printf ("DW_OP_push_object_address");
1244 /* XXX: Strictly speaking for 64-bit DWARF3 files
1245 this ought to be an 8-byte wide computation. */
1246 SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end);
1247 printf ("DW_OP_call2: <0x%s>",
1248 dwarf_vmatoa ("x", svalue + cu_offset));
1251 /* XXX: Strictly speaking for 64-bit DWARF3 files
1252 this ought to be an 8-byte wide computation. */
1253 SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end);
1254 printf ("DW_OP_call4: <0x%s>",
1255 dwarf_vmatoa ("x", svalue + cu_offset));
1257 case DW_OP_call_ref:
1258 /* XXX: Strictly speaking for 64-bit DWARF3 files
1259 this ought to be an 8-byte wide computation. */
1260 if (dwarf_version == -1)
1262 printf (_("(DW_OP_call_ref in frame info)"));
1263 /* No way to tell where the next op is, so just bail. */
1264 return need_frame_base;
1266 if (dwarf_version == 2)
1268 SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
1272 SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end);
1274 printf ("DW_OP_call_ref: <0x%s>", dwarf_vmatoa ("x", uvalue));
1276 case DW_OP_form_tls_address:
1277 printf ("DW_OP_form_tls_address");
1279 case DW_OP_call_frame_cfa:
1280 printf ("DW_OP_call_frame_cfa");
1282 case DW_OP_bit_piece:
1283 printf ("DW_OP_bit_piece: ");
1284 printf (_("size: %s "),
1285 dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
1287 printf (_("offset: %s "),
1288 dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end)));
1292 /* DWARF 4 extensions. */
1293 case DW_OP_stack_value:
1294 printf ("DW_OP_stack_value");
1297 case DW_OP_implicit_value:
1298 printf ("DW_OP_implicit_value");
1299 uvalue = read_uleb128 (data, &bytes_read, end);
1301 data = display_block (data, uvalue, end, ' ');
1304 /* GNU extensions. */
1305 case DW_OP_GNU_push_tls_address:
1306 printf (_("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown"));
1308 case DW_OP_GNU_uninit:
1309 printf ("DW_OP_GNU_uninit");
1310 /* FIXME: Is there data associated with this OP ? */
1312 case DW_OP_GNU_encoded_addr:
1319 addr = get_encoded_value (&data, encoding, section, end);
1321 printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding);
1322 print_dwarf_vma (addr, pointer_size);
1325 case DW_OP_implicit_pointer:
1326 case DW_OP_GNU_implicit_pointer:
1327 /* XXX: Strictly speaking for 64-bit DWARF3 files
1328 this ought to be an 8-byte wide computation. */
1329 if (dwarf_version == -1)
1331 printf (_("(%s in frame info)"),
1332 (op == DW_OP_implicit_pointer
1333 ? "DW_OP_implicit_pointer"
1334 : "DW_OP_GNU_implicit_pointer"));
1335 /* No way to tell where the next op is, so just bail. */
1336 return need_frame_base;
1338 if (dwarf_version == 2)
1340 SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
1344 SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end);
1346 printf ("%s: <0x%s> %s",
1347 (op == DW_OP_implicit_pointer
1348 ? "DW_OP_implicit_pointer" : "DW_OP_GNU_implicit_pointer"),
1349 dwarf_vmatoa ("x", uvalue),
1350 dwarf_vmatoa ("d", read_sleb128 (data,
1351 &bytes_read, end)));
1354 case DW_OP_entry_value:
1355 case DW_OP_GNU_entry_value:
1356 uvalue = read_uleb128 (data, &bytes_read, end);
1358 /* PR 17531: file: 0cc9cd00. */
1359 if (uvalue > (dwarf_vma) (end - data))
1360 uvalue = end - data;
1361 printf ("%s: (", (op == DW_OP_entry_value ? "DW_OP_entry_value"
1362 : "DW_OP_GNU_entry_value"));
1363 if (decode_location_expression (data, pointer_size, offset_size,
1364 dwarf_version, uvalue,
1365 cu_offset, section))
1366 need_frame_base = 1;
1372 case DW_OP_const_type:
1373 case DW_OP_GNU_const_type:
1374 uvalue = read_uleb128 (data, &bytes_read, end);
1376 printf ("%s: <0x%s> ",
1377 (op == DW_OP_const_type ? "DW_OP_const_type"
1378 : "DW_OP_GNU_const_type"),
1379 dwarf_vmatoa ("x", cu_offset + uvalue));
1380 SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
1381 data = display_block (data, uvalue, end, ' ');
1383 case DW_OP_regval_type:
1384 case DW_OP_GNU_regval_type:
1385 uvalue = read_uleb128 (data, &bytes_read, end);
1387 printf ("%s: %s (%s)",
1388 (op == DW_OP_regval_type ? "DW_OP_regval_type"
1389 : "DW_OP_GNU_regval_type"),
1390 dwarf_vmatoa ("u", uvalue), regname (uvalue, 1));
1391 uvalue = read_uleb128 (data, &bytes_read, end);
1393 printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue));
1395 case DW_OP_deref_type:
1396 case DW_OP_GNU_deref_type:
1397 SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
1399 (op == DW_OP_deref_type ? "DW_OP_deref_type"
1400 : "DW_OP_GNU_deref_type"),
1402 uvalue = read_uleb128 (data, &bytes_read, end);
1404 printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue));
1407 case DW_OP_GNU_convert:
1408 uvalue = read_uleb128 (data, &bytes_read, end);
1410 printf ("%s <0x%s>",
1411 (op == DW_OP_convert ? "DW_OP_convert" : "DW_OP_GNU_convert"),
1412 dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0));
1414 case DW_OP_reinterpret:
1415 case DW_OP_GNU_reinterpret:
1416 uvalue = read_uleb128 (data, &bytes_read, end);
1418 printf ("%s <0x%s>",
1419 (op == DW_OP_reinterpret ? "DW_OP_reinterpret"
1420 : "DW_OP_GNU_reinterpret"),
1421 dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0));
1423 case DW_OP_GNU_parameter_ref:
1424 SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
1425 printf ("DW_OP_GNU_parameter_ref: <0x%s>",
1426 dwarf_vmatoa ("x", cu_offset + uvalue));
1428 case DW_OP_GNU_addr_index:
1429 uvalue = read_uleb128 (data, &bytes_read, end);
1431 printf ("DW_OP_GNU_addr_index <0x%s>", dwarf_vmatoa ("x", uvalue));
1433 case DW_OP_GNU_const_index:
1434 uvalue = read_uleb128 (data, &bytes_read, end);
1436 printf ("DW_OP_GNU_const_index <0x%s>", dwarf_vmatoa ("x", uvalue));
1439 /* HP extensions. */
1440 case DW_OP_HP_is_value:
1441 printf ("DW_OP_HP_is_value");
1442 /* FIXME: Is there data associated with this OP ? */
1444 case DW_OP_HP_fltconst4:
1445 printf ("DW_OP_HP_fltconst4");
1446 /* FIXME: Is there data associated with this OP ? */
1448 case DW_OP_HP_fltconst8:
1449 printf ("DW_OP_HP_fltconst8");
1450 /* FIXME: Is there data associated with this OP ? */
1452 case DW_OP_HP_mod_range:
1453 printf ("DW_OP_HP_mod_range");
1454 /* FIXME: Is there data associated with this OP ? */
1456 case DW_OP_HP_unmod_range:
1457 printf ("DW_OP_HP_unmod_range");
1458 /* FIXME: Is there data associated with this OP ? */
1461 printf ("DW_OP_HP_tls");
1462 /* FIXME: Is there data associated with this OP ? */
1465 /* PGI (STMicroelectronics) extensions. */
1466 case DW_OP_PGI_omp_thread_num:
1467 /* Pushes the thread number for the current thread as it would be
1468 returned by the standard OpenMP library function:
1469 omp_get_thread_num(). The "current thread" is the thread for
1470 which the expression is being evaluated. */
1471 printf ("DW_OP_PGI_omp_thread_num");
1475 if (op >= DW_OP_lo_user
1476 && op <= DW_OP_hi_user)
1477 printf (_("(User defined location op 0x%x)"), op);
1479 printf (_("(Unknown location op 0x%x)"), op);
1480 /* No way to tell where the next op is, so just bail. */
1481 return need_frame_base;
1484 /* Separate the ops. */
1489 return need_frame_base;
1492 /* Find the CU or TU set corresponding to the given CU_OFFSET.
1493 This is used for DWARF package files. */
1495 static struct cu_tu_set *
1496 find_cu_tu_set_v2 (dwarf_vma cu_offset, int do_types)
1498 struct cu_tu_set *p;
1500 unsigned int dw_sect;
1506 dw_sect = DW_SECT_TYPES;
1512 dw_sect = DW_SECT_INFO;
1516 if (p->section_offsets [dw_sect] == cu_offset)
1524 /* Add INC to HIGH_BITS:LOW_BITS. */
1526 add64 (dwarf_vma * high_bits, dwarf_vma * low_bits, dwarf_vma inc)
1528 dwarf_vma tmp = * low_bits;
1532 /* FIXME: There is probably a better way of handling this:
1534 We need to cope with dwarf_vma being a 32-bit or 64-bit
1535 type. Plus regardless of its size LOW_BITS is meant to
1536 only hold 32-bits, so if there is overflow or wrap around
1537 we must propagate into HIGH_BITS. */
1538 if (tmp < * low_bits)
1542 else if (sizeof (tmp) > 8
1552 static unsigned char *
1553 read_and_display_attr_value (unsigned long attribute,
1555 dwarf_signed_vma implicit_const,
1556 unsigned char * data,
1557 unsigned char * end,
1558 dwarf_vma cu_offset,
1559 dwarf_vma pointer_size,
1560 dwarf_vma offset_size,
1562 debug_info * debug_info_p,
1564 struct dwarf_section * section,
1565 struct cu_tu_set * this_set, char delimiter)
1567 dwarf_vma uvalue = 0;
1568 unsigned char *block_start = NULL;
1569 unsigned char * orig_data = data;
1570 unsigned int bytes_read;
1572 if (data > end || (data == end && form != DW_FORM_flag_present))
1574 warn (_("Corrupt attribute\n"));
1583 case DW_FORM_ref_addr:
1584 if (dwarf_version == 2)
1585 SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
1586 else if (dwarf_version == 3 || dwarf_version == 4)
1587 SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end);
1589 error (_("Internal error: DWARF version is not 2, 3 or 4.\n"));
1594 SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end);
1598 case DW_FORM_line_strp:
1599 case DW_FORM_sec_offset:
1600 case DW_FORM_GNU_ref_alt:
1601 case DW_FORM_GNU_strp_alt:
1602 SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end);
1605 case DW_FORM_flag_present:
1612 SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end);
1617 SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end);
1622 SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end);
1626 uvalue = read_sleb128 (data, & bytes_read, end);
1630 case DW_FORM_GNU_str_index:
1631 uvalue = read_uleb128 (data, & bytes_read, end);
1635 case DW_FORM_ref_udata:
1637 uvalue = read_uleb128 (data, & bytes_read, end);
1641 case DW_FORM_indirect:
1642 form = read_uleb128 (data, & bytes_read, end);
1645 printf ("%c%s", delimiter, get_FORM_name (form));
1646 if (form == DW_FORM_implicit_const)
1648 implicit_const = read_sleb128 (data, & bytes_read, end);
1651 return read_and_display_attr_value (attribute, form, implicit_const, data,
1652 end, cu_offset, pointer_size,
1653 offset_size, dwarf_version,
1654 debug_info_p, do_loc,
1655 section, this_set, delimiter);
1656 case DW_FORM_GNU_addr_index:
1657 uvalue = read_uleb128 (data, & bytes_read, end);
1664 case DW_FORM_ref_addr:
1666 printf ("%c<0x%s>", delimiter, dwarf_vmatoa ("x",uvalue));
1669 case DW_FORM_GNU_ref_alt:
1671 printf ("%c<alt 0x%s>", delimiter, dwarf_vmatoa ("x",uvalue));
1677 case DW_FORM_ref_udata:
1679 printf ("%c<0x%s>", delimiter, dwarf_vmatoa ("x", uvalue + cu_offset));
1684 case DW_FORM_sec_offset:
1686 printf ("%c0x%s", delimiter, dwarf_vmatoa ("x", uvalue));
1689 case DW_FORM_flag_present:
1696 printf ("%c%s", delimiter, dwarf_vmatoa ("d", uvalue));
1699 case DW_FORM_implicit_const:
1701 printf ("%c%s", delimiter, dwarf_vmatoa ("d", implicit_const));
1708 dwarf_vma high_bits;
1712 SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end);
1714 if (form == DW_FORM_ref8)
1715 add64 (& high_bits, & utmp, cu_offset);
1716 printf ("%c0x%s", delimiter,
1717 dwarf_vmatoa64 (high_bits, utmp, buf, sizeof (buf)));
1720 if ((do_loc || do_debug_loc || do_debug_ranges)
1721 && num_debug_info_entries == 0)
1723 if (sizeof (uvalue) == 8)
1724 SAFE_BYTE_GET (uvalue, data, 8, end);
1726 error (_("DW_FORM_data8 is unsupported when sizeof (dwarf_vma) != 8\n"));
1732 case DW_FORM_data16:
1735 dwarf_vma left_high_bits, left_low_bits;
1736 dwarf_vma right_high_bits, right_low_bits;
1738 SAFE_BYTE_GET64 (data, &left_high_bits, &left_low_bits, end);
1739 SAFE_BYTE_GET64 (data + 8, &right_high_bits, &right_low_bits, end);
1740 if (byte_get == byte_get_little_endian)
1743 left_high_bits ^= right_high_bits;
1744 right_high_bits ^= left_high_bits;
1745 left_high_bits ^= right_high_bits;
1746 left_low_bits ^= right_low_bits;
1747 right_low_bits ^= left_low_bits;
1748 left_low_bits ^= right_low_bits;
1750 printf (" 0x%08" DWARF_VMA_FMT "x%08" DWARF_VMA_FMT "x"
1751 "%08" DWARF_VMA_FMT "x%08" DWARF_VMA_FMT "x",
1752 left_high_bits, left_low_bits, right_high_bits,
1758 case DW_FORM_string:
1760 printf ("%c%.*s", delimiter, (int) (end - data), data);
1761 data += strnlen ((char *) data, end - data) + 1;
1765 case DW_FORM_exprloc:
1766 uvalue = read_uleb128 (data, & bytes_read, end);
1767 block_start = data + bytes_read;
1768 if (block_start >= end)
1770 warn (_("Block ends prematurely\n"));
1774 /* FIXME: Testing "(block_start + uvalue) < block_start" miscompiles with
1775 gcc 4.8.3 running on an x86_64 host in 32-bit mode. So we pre-compute
1776 block_start + uvalue here. */
1777 data = block_start + uvalue;
1778 /* PR 17512: file: 008-103549-0.001:0.1. */
1779 if (block_start + uvalue > end || data < block_start)
1781 warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue);
1782 uvalue = end - block_start;
1785 data = block_start + uvalue;
1787 data = display_block (block_start, uvalue, end, delimiter);
1790 case DW_FORM_block1:
1791 SAFE_BYTE_GET (uvalue, data, 1, end);
1792 block_start = data + 1;
1793 if (block_start >= end)
1795 warn (_("Block ends prematurely\n"));
1799 data = block_start + uvalue;
1800 if (block_start + uvalue > end || data < block_start)
1802 warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue);
1803 uvalue = end - block_start;
1806 data = block_start + uvalue;
1808 data = display_block (block_start, uvalue, end, delimiter);
1811 case DW_FORM_block2:
1812 SAFE_BYTE_GET (uvalue, data, 2, end);
1813 block_start = data + 2;
1814 if (block_start >= end)
1816 warn (_("Block ends prematurely\n"));
1820 data = block_start + uvalue;
1821 if (block_start + uvalue > end || data < block_start)
1823 warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue);
1824 uvalue = end - block_start;
1827 data = block_start + uvalue;
1829 data = display_block (block_start, uvalue, end, delimiter);
1832 case DW_FORM_block4:
1833 SAFE_BYTE_GET (uvalue, data, 4, end);
1834 block_start = data + 4;
1835 /* PR 17512: file: 3371-3907-0.004. */
1836 if (block_start >= end)
1838 warn (_("Block ends prematurely\n"));
1842 data = block_start + uvalue;
1843 if (block_start + uvalue > end
1844 /* PR 17531: file: 5b5f0592. */
1845 || data < block_start)
1847 warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue);
1848 uvalue = end - block_start;
1851 data = block_start + uvalue;
1853 data = display_block (block_start, uvalue, end, delimiter);
1858 printf (_("%c(indirect string, offset: 0x%s): %s"), delimiter,
1859 dwarf_vmatoa ("x", uvalue),
1860 fetch_indirect_string (uvalue));
1863 case DW_FORM_line_strp:
1865 printf (_("%c(indirect line string, offset: 0x%s): %s"), delimiter,
1866 dwarf_vmatoa ("x", uvalue),
1867 fetch_indirect_line_string (uvalue));
1870 case DW_FORM_GNU_str_index:
1873 const char *suffix = strrchr (section->name, '.');
1874 int dwo = (suffix && strcmp (suffix, ".dwo") == 0) ? 1 : 0;
1876 printf (_("%c(indexed string: 0x%s): %s"), delimiter,
1877 dwarf_vmatoa ("x", uvalue),
1878 fetch_indexed_string (uvalue, this_set, offset_size, dwo));
1882 case DW_FORM_GNU_strp_alt:
1884 printf (_("%c(alt indirect string, offset: 0x%s)"), delimiter,
1885 dwarf_vmatoa ("x", uvalue));
1888 case DW_FORM_indirect:
1889 /* Handled above. */
1892 case DW_FORM_ref_sig8:
1895 dwarf_vma high_bits;
1898 SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end);
1899 printf ("%csignature: 0x%s", delimiter,
1900 dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf)));
1905 case DW_FORM_GNU_addr_index:
1907 printf (_("%c(addr_index: 0x%s): %s"), delimiter,
1908 dwarf_vmatoa ("x", uvalue),
1909 fetch_indexed_value (uvalue * pointer_size, pointer_size));
1913 warn (_("Unrecognized form: %lu\n"), form);
1917 if ((do_loc || do_debug_loc || do_debug_ranges)
1918 && num_debug_info_entries == 0
1919 && debug_info_p != NULL)
1923 case DW_AT_frame_base:
1924 have_frame_base = 1;
1926 case DW_AT_location:
1927 case DW_AT_string_length:
1928 case DW_AT_return_addr:
1929 case DW_AT_data_member_location:
1930 case DW_AT_vtable_elem_location:
1932 case DW_AT_static_link:
1933 case DW_AT_use_location:
1934 case DW_AT_call_value:
1935 case DW_AT_GNU_call_site_value:
1936 case DW_AT_call_data_value:
1937 case DW_AT_GNU_call_site_data_value:
1938 case DW_AT_call_target:
1939 case DW_AT_GNU_call_site_target:
1940 case DW_AT_call_target_clobbered:
1941 case DW_AT_GNU_call_site_target_clobbered:
1942 if ((dwarf_version < 4
1943 && (form == DW_FORM_data4 || form == DW_FORM_data8))
1944 || form == DW_FORM_sec_offset)
1946 /* Process location list. */
1947 unsigned int lmax = debug_info_p->max_loc_offsets;
1948 unsigned int num = debug_info_p->num_loc_offsets;
1950 if (lmax == 0 || num >= lmax)
1953 debug_info_p->loc_offsets = (dwarf_vma *)
1954 xcrealloc (debug_info_p->loc_offsets,
1955 lmax, sizeof (*debug_info_p->loc_offsets));
1956 debug_info_p->have_frame_base = (int *)
1957 xcrealloc (debug_info_p->have_frame_base,
1958 lmax, sizeof (*debug_info_p->have_frame_base));
1959 debug_info_p->max_loc_offsets = lmax;
1961 if (this_set != NULL)
1962 uvalue += this_set->section_offsets [DW_SECT_LOC];
1963 debug_info_p->loc_offsets [num] = uvalue;
1964 debug_info_p->have_frame_base [num] = have_frame_base;
1965 debug_info_p->num_loc_offsets++;
1970 if (need_base_address)
1971 debug_info_p->base_address = uvalue;
1974 case DW_AT_GNU_addr_base:
1975 debug_info_p->addr_base = uvalue;
1978 case DW_AT_GNU_ranges_base:
1979 debug_info_p->ranges_base = uvalue;
1983 if ((dwarf_version < 4
1984 && (form == DW_FORM_data4 || form == DW_FORM_data8))
1985 || form == DW_FORM_sec_offset)
1987 /* Process range list. */
1988 unsigned int lmax = debug_info_p->max_range_lists;
1989 unsigned int num = debug_info_p->num_range_lists;
1991 if (lmax == 0 || num >= lmax)
1994 debug_info_p->range_lists = (dwarf_vma *)
1995 xcrealloc (debug_info_p->range_lists,
1996 lmax, sizeof (*debug_info_p->range_lists));
1997 debug_info_p->max_range_lists = lmax;
1999 debug_info_p->range_lists [num] = uvalue;
2000 debug_info_p->num_range_lists++;
2009 if (do_loc || attribute == 0)
2012 /* For some attributes we can display further information. */
2019 case DW_INL_not_inlined:
2020 printf (_("(not inlined)"));
2022 case DW_INL_inlined:
2023 printf (_("(inlined)"));
2025 case DW_INL_declared_not_inlined:
2026 printf (_("(declared as inline but ignored)"));
2028 case DW_INL_declared_inlined:
2029 printf (_("(declared as inline and inlined)"));
2032 printf (_(" (Unknown inline attribute value: %s)"),
2033 dwarf_vmatoa ("x", uvalue));
2038 case DW_AT_language:
2042 /* Ordered by the numeric value of these constants. */
2043 case DW_LANG_C89: printf ("(ANSI C)"); break;
2044 case DW_LANG_C: printf ("(non-ANSI C)"); break;
2045 case DW_LANG_Ada83: printf ("(Ada)"); break;
2046 case DW_LANG_C_plus_plus: printf ("(C++)"); break;
2047 case DW_LANG_Cobol74: printf ("(Cobol 74)"); break;
2048 case DW_LANG_Cobol85: printf ("(Cobol 85)"); break;
2049 case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break;
2050 case DW_LANG_Fortran90: printf ("(Fortran 90)"); break;
2051 case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break;
2052 case DW_LANG_Modula2: printf ("(Modula 2)"); break;
2053 /* DWARF 2.1 values. */
2054 case DW_LANG_Java: printf ("(Java)"); break;
2055 case DW_LANG_C99: printf ("(ANSI C99)"); break;
2056 case DW_LANG_Ada95: printf ("(ADA 95)"); break;
2057 case DW_LANG_Fortran95: printf ("(Fortran 95)"); break;
2058 /* DWARF 3 values. */
2059 case DW_LANG_PLI: printf ("(PLI)"); break;
2060 case DW_LANG_ObjC: printf ("(Objective C)"); break;
2061 case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break;
2062 case DW_LANG_UPC: printf ("(Unified Parallel C)"); break;
2063 case DW_LANG_D: printf ("(D)"); break;
2064 /* DWARF 4 values. */
2065 case DW_LANG_Python: printf ("(Python)"); break;
2066 /* DWARF 5 values. */
2067 case DW_LANG_Go: printf ("(Go)"); break;
2068 case DW_LANG_C_plus_plus_11: printf ("(C++11)"); break;
2069 case DW_LANG_C11: printf ("(C11)"); break;
2070 case DW_LANG_C_plus_plus_14: printf ("(C++14)"); break;
2071 case DW_LANG_Fortran03: printf ("(Fortran 03)"); break;
2072 case DW_LANG_Fortran08: printf ("(Fortran 08)"); break;
2073 /* MIPS extension. */
2074 case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break;
2075 /* UPC extension. */
2076 case DW_LANG_Upc: printf ("(Unified Parallel C)"); break;
2078 if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user)
2079 printf (_("(implementation defined: %s)"),
2080 dwarf_vmatoa ("x", uvalue));
2082 printf (_("(Unknown: %s)"), dwarf_vmatoa ("x", uvalue));
2087 case DW_AT_encoding:
2091 case DW_ATE_void: printf ("(void)"); break;
2092 case DW_ATE_address: printf ("(machine address)"); break;
2093 case DW_ATE_boolean: printf ("(boolean)"); break;
2094 case DW_ATE_complex_float: printf ("(complex float)"); break;
2095 case DW_ATE_float: printf ("(float)"); break;
2096 case DW_ATE_signed: printf ("(signed)"); break;
2097 case DW_ATE_signed_char: printf ("(signed char)"); break;
2098 case DW_ATE_unsigned: printf ("(unsigned)"); break;
2099 case DW_ATE_unsigned_char: printf ("(unsigned char)"); break;
2100 /* DWARF 2.1 values: */
2101 case DW_ATE_imaginary_float: printf ("(imaginary float)"); break;
2102 case DW_ATE_decimal_float: printf ("(decimal float)"); break;
2103 /* DWARF 3 values: */
2104 case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break;
2105 case DW_ATE_numeric_string: printf ("(numeric_string)"); break;
2106 case DW_ATE_edited: printf ("(edited)"); break;
2107 case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break;
2108 case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break;
2109 /* HP extensions: */
2110 case DW_ATE_HP_float80: printf ("(HP_float80)"); break;
2111 case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break;
2112 case DW_ATE_HP_float128: printf ("(HP_float128)"); break;
2113 case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break;
2114 case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break;
2115 case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break;
2116 case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break;
2117 /* DWARF 4 values: */
2118 case DW_ATE_UTF: printf ("(unicode string)"); break;
2121 if (uvalue >= DW_ATE_lo_user
2122 && uvalue <= DW_ATE_hi_user)
2123 printf (_("(user defined type)"));
2125 printf (_("(unknown type)"));
2130 case DW_AT_accessibility:
2134 case DW_ACCESS_public: printf ("(public)"); break;
2135 case DW_ACCESS_protected: printf ("(protected)"); break;
2136 case DW_ACCESS_private: printf ("(private)"); break;
2138 printf (_("(unknown accessibility)"));
2143 case DW_AT_visibility:
2147 case DW_VIS_local: printf ("(local)"); break;
2148 case DW_VIS_exported: printf ("(exported)"); break;
2149 case DW_VIS_qualified: printf ("(qualified)"); break;
2150 default: printf (_("(unknown visibility)")); break;
2154 case DW_AT_virtuality:
2158 case DW_VIRTUALITY_none: printf ("(none)"); break;
2159 case DW_VIRTUALITY_virtual: printf ("(virtual)"); break;
2160 case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break;
2161 default: printf (_("(unknown virtuality)")); break;
2165 case DW_AT_identifier_case:
2169 case DW_ID_case_sensitive: printf ("(case_sensitive)"); break;
2170 case DW_ID_up_case: printf ("(up_case)"); break;
2171 case DW_ID_down_case: printf ("(down_case)"); break;
2172 case DW_ID_case_insensitive: printf ("(case_insensitive)"); break;
2173 default: printf (_("(unknown case)")); break;
2177 case DW_AT_calling_convention:
2181 case DW_CC_normal: printf ("(normal)"); break;
2182 case DW_CC_program: printf ("(program)"); break;
2183 case DW_CC_nocall: printf ("(nocall)"); break;
2185 if (uvalue >= DW_CC_lo_user
2186 && uvalue <= DW_CC_hi_user)
2187 printf (_("(user defined)"));
2189 printf (_("(unknown convention)"));
2193 case DW_AT_ordering:
2197 case -1: printf (_("(undefined)")); break;
2198 case 0: printf ("(row major)"); break;
2199 case 1: printf ("(column major)"); break;
2203 case DW_AT_frame_base:
2204 have_frame_base = 1;
2206 case DW_AT_location:
2207 case DW_AT_string_length:
2208 case DW_AT_return_addr:
2209 case DW_AT_data_member_location:
2210 case DW_AT_vtable_elem_location:
2212 case DW_AT_static_link:
2213 case DW_AT_use_location:
2214 case DW_AT_call_value:
2215 case DW_AT_GNU_call_site_value:
2216 case DW_AT_call_data_value:
2217 case DW_AT_GNU_call_site_data_value:
2218 case DW_AT_call_target:
2219 case DW_AT_GNU_call_site_target:
2220 case DW_AT_call_target_clobbered:
2221 case DW_AT_GNU_call_site_target_clobbered:
2222 if ((dwarf_version < 4
2223 && (form == DW_FORM_data4 || form == DW_FORM_data8))
2224 || form == DW_FORM_sec_offset)
2225 printf (_(" (location list)"));
2227 case DW_AT_allocated:
2228 case DW_AT_associated:
2229 case DW_AT_data_location:
2231 case DW_AT_upper_bound:
2232 case DW_AT_lower_bound:
2235 int need_frame_base;
2238 need_frame_base = decode_location_expression (block_start,
2243 cu_offset, section);
2245 if (need_frame_base && !have_frame_base)
2246 printf (_(" [without DW_AT_frame_base]"));
2252 if (form == DW_FORM_ref_sig8
2253 || form == DW_FORM_GNU_ref_alt)
2256 if (form == DW_FORM_ref1
2257 || form == DW_FORM_ref2
2258 || form == DW_FORM_ref4
2259 || form == DW_FORM_ref_udata)
2260 uvalue += cu_offset;
2262 if (uvalue >= section->size)
2263 warn (_("Offset %s used as value for DW_AT_import attribute of DIE at offset 0x%lx is too big.\n"),
2264 dwarf_vmatoa ("x", uvalue),
2265 (unsigned long) (orig_data - section->start));
2268 unsigned long abbrev_number;
2269 abbrev_entry * entry;
2271 abbrev_number = read_uleb128 (section->start + uvalue, NULL, end);
2273 printf (_("\t[Abbrev Number: %ld"), abbrev_number);
2274 /* Don't look up abbrev for DW_FORM_ref_addr, as it very often will
2275 use different abbrev table, and we don't track .debug_info chunks
2277 if (form != DW_FORM_ref_addr)
2279 for (entry = first_abbrev; entry != NULL; entry = entry->next)
2280 if (entry->entry == abbrev_number)
2283 printf (" (%s)", get_TAG_name (entry->tag));
2298 get_AT_name (unsigned long attribute)
2303 return "DW_AT value: 0";
2305 /* One value is shared by the MIPS and HP extensions: */
2306 if (attribute == DW_AT_MIPS_fde)
2307 return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable";
2309 name = get_DW_AT_name (attribute);
2313 static char buffer[100];
2315 snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"),
2323 static unsigned char *
2324 read_and_display_attr (unsigned long attribute,
2326 dwarf_signed_vma implicit_const,
2327 unsigned char * data,
2328 unsigned char * end,
2329 dwarf_vma cu_offset,
2330 dwarf_vma pointer_size,
2331 dwarf_vma offset_size,
2333 debug_info * debug_info_p,
2335 struct dwarf_section * section,
2336 struct cu_tu_set * this_set)
2339 printf (" %-18s:", get_AT_name (attribute));
2340 data = read_and_display_attr_value (attribute, form, implicit_const, data, end,
2341 cu_offset, pointer_size, offset_size,
2342 dwarf_version, debug_info_p,
2343 do_loc, section, this_set, ' ');
2349 /* Process the contents of a .debug_info section. If do_loc is non-zero
2350 then we are scanning for location lists and we do not want to display
2351 anything to the user. If do_types is non-zero, we are processing
2352 a .debug_types section instead of a .debug_info section. */
2355 process_debug_info (struct dwarf_section *section,
2357 enum dwarf_section_display_enum abbrev_sec,
2361 unsigned char *start = section->start;
2362 unsigned char *end = start + section->size;
2363 unsigned char *section_begin;
2365 unsigned int num_units = 0;
2367 if ((do_loc || do_debug_loc || do_debug_ranges)
2368 && num_debug_info_entries == 0
2373 /* First scan the section to get the number of comp units. */
2374 for (section_begin = start, num_units = 0; section_begin < end;
2377 /* Read the first 4 bytes. For a 32-bit DWARF section, this
2378 will be the length. For a 64-bit DWARF section, it'll be
2379 the escape code 0xffffffff followed by an 8 byte length. */
2380 SAFE_BYTE_GET (length, section_begin, 4, end);
2382 if (length == 0xffffffff)
2384 SAFE_BYTE_GET (length, section_begin + 4, 8, end);
2385 section_begin += length + 12;
2387 else if (length >= 0xfffffff0 && length < 0xffffffff)
2389 warn (_("Reserved length value (0x%s) found in section %s\n"),
2390 dwarf_vmatoa ("x", length), section->name);
2394 section_begin += length + 4;
2396 /* Negative values are illegal, they may even cause infinite
2397 looping. This can happen if we can't accurately apply
2398 relocations to an object file, or if the file is corrupt. */
2399 if ((signed long) length <= 0 || section_begin < start)
2401 warn (_("Corrupt unit length (0x%s) found in section %s\n"),
2402 dwarf_vmatoa ("x", length), section->name);
2409 error (_("No comp units in %s section ?\n"), section->name);
2413 /* Then allocate an array to hold the information. */
2414 debug_information = (debug_info *) cmalloc (num_units,
2415 sizeof (* debug_information));
2416 if (debug_information == NULL)
2418 error (_("Not enough memory for a debug info array of %u entries\n"),
2420 alloc_num_debug_info_entries = num_debug_info_entries = 0;
2423 /* PR 17531: file: 92ca3797.
2424 We cannot rely upon the debug_information array being initialised
2425 before it is used. A corrupt file could easily contain references
2426 to a unit for which information has not been made available. So
2427 we ensure that the array is zeroed here. */
2428 memset (debug_information, 0, num_units * sizeof (*debug_information));
2430 alloc_num_debug_info_entries = num_units;
2435 if (dwarf_start_die == 0)
2436 printf (_("Contents of the %s section:\n\n"), section->name);
2438 load_debug_section (str, file);
2439 load_debug_section (line_str, file);
2440 load_debug_section (str_dwo, file);
2441 load_debug_section (str_index, file);
2442 load_debug_section (str_index_dwo, file);
2443 load_debug_section (debug_addr, file);
2446 load_debug_section (abbrev_sec, file);
2447 if (debug_displays [abbrev_sec].section.start == NULL)
2449 warn (_("Unable to locate %s section!\n"),
2450 debug_displays [abbrev_sec].section.name);
2454 for (section_begin = start, unit = 0; start < end; unit++)
2456 DWARF2_Internal_CompUnit compunit;
2457 unsigned char *hdrptr;
2458 unsigned char *tags;
2459 int level, last_level, saved_level;
2460 dwarf_vma cu_offset;
2461 unsigned int offset_size;
2462 int initial_length_size;
2463 dwarf_vma signature_high = 0;
2464 dwarf_vma signature_low = 0;
2465 dwarf_vma type_offset = 0;
2466 struct cu_tu_set *this_set;
2467 dwarf_vma abbrev_base;
2472 SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 4, end);
2474 if (compunit.cu_length == 0xffffffff)
2476 SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 8, end);
2478 initial_length_size = 12;
2483 initial_length_size = 4;
2486 SAFE_BYTE_GET_AND_INC (compunit.cu_version, hdrptr, 2, end);
2488 cu_offset = start - section_begin;
2490 this_set = find_cu_tu_set_v2 (cu_offset, do_types);
2492 if (compunit.cu_version < 5)
2494 compunit.cu_unit_type = DW_UT_compile;
2495 /* Initialize it due to a false compiler warning. */
2496 compunit.cu_pointer_size = -1;
2500 SAFE_BYTE_GET_AND_INC (compunit.cu_unit_type, hdrptr, 1, end);
2501 do_types = (compunit.cu_unit_type == DW_UT_type);
2503 SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end);
2506 SAFE_BYTE_GET_AND_INC (compunit.cu_abbrev_offset, hdrptr, offset_size, end);
2508 if (this_set == NULL)
2511 abbrev_size = debug_displays [abbrev_sec].section.size;
2515 abbrev_base = this_set->section_offsets [DW_SECT_ABBREV];
2516 abbrev_size = this_set->section_sizes [DW_SECT_ABBREV];
2519 if (compunit.cu_version < 5)
2520 SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end);
2522 /* PR 17512: file: 001-108546-0.001:0.1. */
2523 if (compunit.cu_pointer_size < 2 || compunit.cu_pointer_size > 8)
2525 warn (_("Invalid pointer size (%d) in compunit header, using %d instead\n"),
2526 compunit.cu_pointer_size, offset_size);
2527 compunit.cu_pointer_size = offset_size;
2532 SAFE_BYTE_GET64 (hdrptr, &signature_high, &signature_low, end);
2534 SAFE_BYTE_GET_AND_INC (type_offset, hdrptr, offset_size, end);
2537 if ((do_loc || do_debug_loc || do_debug_ranges)
2538 && num_debug_info_entries == 0
2541 debug_information [unit].cu_offset = cu_offset;
2542 debug_information [unit].pointer_size
2543 = compunit.cu_pointer_size;
2544 debug_information [unit].offset_size = offset_size;
2545 debug_information [unit].dwarf_version = compunit.cu_version;
2546 debug_information [unit].base_address = 0;
2547 debug_information [unit].addr_base = DEBUG_INFO_UNAVAILABLE;
2548 debug_information [unit].ranges_base = DEBUG_INFO_UNAVAILABLE;
2549 debug_information [unit].loc_offsets = NULL;
2550 debug_information [unit].have_frame_base = NULL;
2551 debug_information [unit].max_loc_offsets = 0;
2552 debug_information [unit].num_loc_offsets = 0;
2553 debug_information [unit].range_lists = NULL;
2554 debug_information [unit].max_range_lists= 0;
2555 debug_information [unit].num_range_lists = 0;
2558 if (!do_loc && dwarf_start_die == 0)
2560 printf (_(" Compilation Unit @ offset 0x%s:\n"),
2561 dwarf_vmatoa ("x", cu_offset));
2562 printf (_(" Length: 0x%s (%s)\n"),
2563 dwarf_vmatoa ("x", compunit.cu_length),
2564 offset_size == 8 ? "64-bit" : "32-bit");
2565 printf (_(" Version: %d\n"), compunit.cu_version);
2566 printf (_(" Abbrev Offset: 0x%s\n"),
2567 dwarf_vmatoa ("x", compunit.cu_abbrev_offset));
2568 printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
2573 printf (_(" Signature: 0x%s\n"),
2574 dwarf_vmatoa64 (signature_high, signature_low,
2575 buf, sizeof (buf)));
2576 printf (_(" Type Offset: 0x%s\n"),
2577 dwarf_vmatoa ("x", type_offset));
2579 if (this_set != NULL)
2581 dwarf_vma *offsets = this_set->section_offsets;
2582 size_t *sizes = this_set->section_sizes;
2584 printf (_(" Section contributions:\n"));
2585 printf (_(" .debug_abbrev.dwo: 0x%s 0x%s\n"),
2586 dwarf_vmatoa ("x", offsets [DW_SECT_ABBREV]),
2587 dwarf_vmatoa ("x", sizes [DW_SECT_ABBREV]));
2588 printf (_(" .debug_line.dwo: 0x%s 0x%s\n"),
2589 dwarf_vmatoa ("x", offsets [DW_SECT_LINE]),
2590 dwarf_vmatoa ("x", sizes [DW_SECT_LINE]));
2591 printf (_(" .debug_loc.dwo: 0x%s 0x%s\n"),
2592 dwarf_vmatoa ("x", offsets [DW_SECT_LOC]),
2593 dwarf_vmatoa ("x", sizes [DW_SECT_LOC]));
2594 printf (_(" .debug_str_offsets.dwo: 0x%s 0x%s\n"),
2595 dwarf_vmatoa ("x", offsets [DW_SECT_STR_OFFSETS]),
2596 dwarf_vmatoa ("x", sizes [DW_SECT_STR_OFFSETS]));
2600 if (cu_offset + compunit.cu_length + initial_length_size
2603 warn (_("Debug info is corrupted, length of CU at %s"
2604 " extends beyond end of section (length = %s)\n"),
2605 dwarf_vmatoa ("x", cu_offset),
2606 dwarf_vmatoa ("x", compunit.cu_length));
2611 start += compunit.cu_length + initial_length_size;
2615 warn (_("Debug info is corrupt. CU at %s extends beyond end of section"),
2616 dwarf_vmatoa ("x", cu_offset));
2620 if (compunit.cu_version < 2 || compunit.cu_version > 5)
2622 warn (_("CU at offset %s contains corrupt or "
2623 "unsupported version number: %d.\n"),
2624 dwarf_vmatoa ("x", cu_offset), compunit.cu_version);
2628 if (compunit.cu_unit_type != DW_UT_compile
2629 && compunit.cu_unit_type != DW_UT_type)
2631 warn (_("CU at offset %s contains corrupt or "
2632 "unsupported unit type: %d.\n"),
2633 dwarf_vmatoa ("x", cu_offset), compunit.cu_unit_type);
2639 /* Process the abbrevs used by this compilation unit. */
2640 if (compunit.cu_abbrev_offset >= abbrev_size)
2641 warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"),
2642 (unsigned long) compunit.cu_abbrev_offset,
2643 (unsigned long) abbrev_size);
2644 /* PR 17531: file:4bcd9ce9. */
2645 else if ((abbrev_base + abbrev_size)
2646 > debug_displays [abbrev_sec].section.size)
2647 warn (_("Debug info is corrupted, abbrev size (%lx) is larger than abbrev section size (%lx)\n"),
2648 (unsigned long) abbrev_base + abbrev_size,
2649 (unsigned long) debug_displays [abbrev_sec].section.size);
2651 process_abbrev_section
2652 (((unsigned char *) debug_displays [abbrev_sec].section.start
2653 + abbrev_base + compunit.cu_abbrev_offset),
2654 ((unsigned char *) debug_displays [abbrev_sec].section.start
2655 + abbrev_base + abbrev_size));
2660 while (tags < start)
2662 unsigned int bytes_read;
2663 unsigned long abbrev_number;
2664 unsigned long die_offset;
2665 abbrev_entry *entry;
2667 int do_printing = 1;
2669 die_offset = tags - section_begin;
2671 abbrev_number = read_uleb128 (tags, & bytes_read, start);
2674 /* A null DIE marks the end of a list of siblings or it may also be
2675 a section padding. */
2676 if (abbrev_number == 0)
2678 /* Check if it can be a section padding for the last CU. */
2679 if (level == 0 && start == end)
2683 for (chk = tags; chk < start; chk++)
2690 if (!do_loc && die_offset >= dwarf_start_die
2691 && (dwarf_cutoff_level == -1
2692 || level < dwarf_cutoff_level))
2693 printf (_(" <%d><%lx>: Abbrev Number: 0\n"),
2699 static unsigned num_bogus_warns = 0;
2701 if (num_bogus_warns < 3)
2703 warn (_("Bogus end-of-siblings marker detected at offset %lx in %s section\n"),
2704 die_offset, section->name);
2706 if (num_bogus_warns == 3)
2707 warn (_("Further warnings about bogus end-of-sibling markers suppressed\n"));
2710 if (dwarf_start_die != 0 && level < saved_level)
2717 if (dwarf_start_die != 0 && die_offset < dwarf_start_die)
2721 if (dwarf_start_die != 0 && die_offset == dwarf_start_die)
2722 saved_level = level;
2723 do_printing = (dwarf_cutoff_level == -1
2724 || level < dwarf_cutoff_level);
2726 printf (_(" <%d><%lx>: Abbrev Number: %lu"),
2727 level, die_offset, abbrev_number);
2728 else if (dwarf_cutoff_level == -1
2729 || last_level < dwarf_cutoff_level)
2730 printf (_(" <%d><%lx>: ...\n"), level, die_offset);
2735 /* Scan through the abbreviation list until we reach the
2737 for (entry = first_abbrev;
2738 entry && entry->entry != abbrev_number;
2739 entry = entry->next)
2744 if (!do_loc && do_printing)
2749 warn (_("DIE at offset 0x%lx refers to abbreviation number %lu which does not exist\n"),
2750 die_offset, abbrev_number);
2754 if (!do_loc && do_printing)
2755 printf (" (%s)\n", get_TAG_name (entry->tag));
2760 need_base_address = 0;
2762 case DW_TAG_compile_unit:
2763 need_base_address = 1;
2765 case DW_TAG_entry_point:
2766 case DW_TAG_subprogram:
2767 need_base_address = 0;
2768 /* Assuming that there is no DW_AT_frame_base. */
2769 have_frame_base = 0;
2773 for (attr = entry->first_attr;
2774 attr && attr->attribute;
2779 if (! do_loc && do_printing)
2780 /* Show the offset from where the tag was extracted. */
2781 printf (" <%lx>", (unsigned long)(tags - section_begin));
2783 if (debug_information && unit < alloc_num_debug_info_entries)
2784 arg = debug_information + unit;
2788 tags = read_and_display_attr (attr->attribute,
2790 attr->implicit_const,
2794 compunit.cu_pointer_size,
2796 compunit.cu_version,
2798 do_loc || ! do_printing,
2803 if (entry->children)
2808 /* Set num_debug_info_entries here so that it can be used to check if
2809 we need to process .debug_loc and .debug_ranges sections. */
2810 if ((do_loc || do_debug_loc || do_debug_ranges)
2811 && num_debug_info_entries == 0
2814 if (num_units > alloc_num_debug_info_entries)
2815 num_debug_info_entries = alloc_num_debug_info_entries;
2817 num_debug_info_entries = num_units;
2826 /* Locate and scan the .debug_info section in the file and record the pointer
2827 sizes and offsets for the compilation units in it. Usually an executable
2828 will have just one pointer size, but this is not guaranteed, and so we try
2829 not to make any assumptions. Returns zero upon failure, or the number of
2830 compilation units upon success. */
2833 load_debug_info (void * file)
2835 /* Reset the last pointer size so that we can issue correct error
2836 messages if we are displaying the contents of more than one section. */
2837 last_pointer_size = 0;
2838 warned_about_missing_comp_units = FALSE;
2840 /* If we have already tried and failed to load the .debug_info
2841 section then do not bother to repeat the task. */
2842 if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
2845 /* If we already have the information there is nothing else to do. */
2846 if (num_debug_info_entries > 0)
2847 return num_debug_info_entries;
2849 /* If this is a DWARF package file, load the CU and TU indexes. */
2850 (void) load_cu_tu_indexes (file);
2852 if (load_debug_section (info, file)
2853 && process_debug_info (&debug_displays [info].section, file, abbrev, 1, 0))
2854 return num_debug_info_entries;
2856 if (load_debug_section (info_dwo, file)
2857 && process_debug_info (&debug_displays [info_dwo].section, file,
2859 return num_debug_info_entries;
2861 num_debug_info_entries = DEBUG_INFO_UNAVAILABLE;
2865 /* Read a DWARF .debug_line section header starting at DATA.
2866 Upon success returns an updated DATA pointer and the LINFO
2867 structure and the END_OF_SEQUENCE pointer will be filled in.
2868 Otherwise returns NULL. */
2870 static unsigned char *
2871 read_debug_line_header (struct dwarf_section * section,
2872 unsigned char * data,
2873 unsigned char * end,
2874 DWARF2_Internal_LineInfo * linfo,
2875 unsigned char ** end_of_sequence)
2877 unsigned char *hdrptr;
2878 unsigned int initial_length_size;
2879 unsigned char address_size, segment_selector_size;
2881 /* Extract information from the Line Number Program Header.
2882 (section 6.2.4 in the Dwarf3 doc). */
2885 /* Get and check the length of the block. */
2886 SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 4, end);
2888 if (linfo->li_length == 0xffffffff)
2890 /* This section is 64-bit DWARF 3. */
2891 SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 8, end);
2892 linfo->li_offset_size = 8;
2893 initial_length_size = 12;
2897 linfo->li_offset_size = 4;
2898 initial_length_size = 4;
2901 if (linfo->li_length + initial_length_size > section->size)
2903 /* If the length field has a relocation against it, then we should
2904 not complain if it is inaccurate (and probably negative). This
2905 happens in object files when the .debug_line section is actually
2906 comprised of several different .debug_line.* sections, (some of
2907 which may be removed by linker garbage collection), and a relocation
2908 is used to compute the correct length once that is done. */
2909 if (reloc_at (section, (hdrptr - section->start) - linfo->li_offset_size))
2911 linfo->li_length = (end - data) - initial_length_size;
2915 warn (_("The length field (0x%lx) in the debug_line header is wrong - the section is too small\n"),
2916 (long) linfo->li_length);
2921 /* Get and check the version number. */
2922 SAFE_BYTE_GET_AND_INC (linfo->li_version, hdrptr, 2, end);
2924 if (linfo->li_version != 2
2925 && linfo->li_version != 3
2926 && linfo->li_version != 4
2927 && linfo->li_version != 5)
2929 warn (_("Only DWARF version 2, 3, 4 and 5 line info "
2930 "is currently supported.\n"));
2934 if (linfo->li_version >= 5)
2936 SAFE_BYTE_GET_AND_INC (address_size, hdrptr, 1, end);
2938 SAFE_BYTE_GET_AND_INC (segment_selector_size, hdrptr, 1, end);
2939 if (segment_selector_size != 0)
2941 warn (_("The %s section contains "
2942 "unsupported segment selector size: %d.\n"),
2943 section->name, segment_selector_size);
2948 SAFE_BYTE_GET_AND_INC (linfo->li_prologue_length, hdrptr,
2949 linfo->li_offset_size, end);
2950 SAFE_BYTE_GET_AND_INC (linfo->li_min_insn_length, hdrptr, 1, end);
2952 if (linfo->li_version >= 4)
2954 SAFE_BYTE_GET_AND_INC (linfo->li_max_ops_per_insn, hdrptr, 1, end);
2956 if (linfo->li_max_ops_per_insn == 0)
2958 warn (_("Invalid maximum operations per insn.\n"));
2963 linfo->li_max_ops_per_insn = 1;
2965 SAFE_BYTE_GET_AND_INC (linfo->li_default_is_stmt, hdrptr, 1, end);
2966 SAFE_SIGNED_BYTE_GET_AND_INC (linfo->li_line_base, hdrptr, 1, end);
2967 SAFE_BYTE_GET_AND_INC (linfo->li_line_range, hdrptr, 1, end);
2968 SAFE_BYTE_GET_AND_INC (linfo->li_opcode_base, hdrptr, 1, end);
2970 * end_of_sequence = data + linfo->li_length + initial_length_size;
2971 /* PR 17512: file:002-117414-0.004. */
2972 if (* end_of_sequence > end)
2974 warn (_("Line length %s extends beyond end of section\n"),
2975 dwarf_vmatoa ("u", linfo->li_length));
2976 * end_of_sequence = end;
2983 static unsigned char *
2984 display_formatted_table (unsigned char *data,
2985 unsigned char *start, unsigned char *end,
2986 const DWARF2_Internal_LineInfo *linfo,
2987 struct dwarf_section *section, const char *what)
2989 unsigned char *format_start, format_count, *format, formati;
2990 dwarf_vma data_count, datai;
2991 unsigned int bytes_read, namepass, last_entry = 0;
2993 SAFE_BYTE_GET_AND_INC (format_count, data, 1, end);
2994 format_start = data;
2995 for (formati = 0; formati < format_count; formati++)
2997 read_uleb128 (data, & bytes_read, end);
2999 read_uleb128 (data, & bytes_read, end);
3003 warn (_("Corrupt %s entry format table entry\n"), what);
3008 data_count = read_uleb128 (data, & bytes_read, end);
3012 warn (_("Corrupt %s list\n"), what);
3016 if (data_count == 0)
3018 printf (_("\n The %s Table is empty.\n"), what);
3022 printf (_("\n The %s Table (offset 0x%lx):\n"), what,
3023 (long)(data - start));
3025 printf (_(" Entry"));
3026 /* Delay displaying name as the last entry for better screen layout. */
3027 for (namepass = 0; namepass < 2; namepass++)
3029 format = format_start;
3030 for (formati = 0; formati < format_count; formati++)
3032 dwarf_vma content_type;
3034 content_type = read_uleb128 (format, & bytes_read, end);
3035 format += bytes_read;
3036 if ((content_type == DW_LNCT_path) == (namepass == 1))
3037 switch (content_type)
3040 printf (_("\tName"));
3042 case DW_LNCT_directory_index:
3043 printf (_("\tDir"));
3045 case DW_LNCT_timestamp:
3046 printf (_("\tTime"));
3049 printf (_("\tSize"));
3052 printf (_("\tMD5"));
3055 printf (_("\t(Unknown format content type %s)"),
3056 dwarf_vmatoa ("u", content_type));
3058 read_uleb128 (format, & bytes_read, end);
3059 format += bytes_read;
3064 for (datai = 0; datai < data_count; datai++)
3066 unsigned char *datapass = data;
3068 printf (" %d", last_entry++);
3069 /* Delay displaying name as the last entry for better screen layout. */
3070 for (namepass = 0; namepass < 2; namepass++)
3072 format = format_start;
3074 for (formati = 0; formati < format_count; formati++)
3076 dwarf_vma content_type, form;
3078 content_type = read_uleb128 (format, & bytes_read, end);
3079 format += bytes_read;
3080 form = read_uleb128 (format, & bytes_read, end);
3081 format += bytes_read;
3082 data = read_and_display_attr_value (0, form, 0, data, end, 0, 0,
3083 linfo->li_offset_size,
3084 linfo->li_version, NULL,
3085 ((content_type == DW_LNCT_path) != (namepass == 1)),
3086 section, NULL, '\t');
3091 warn (_("Corrupt %s entries list\n"), what);
3100 display_debug_lines_raw (struct dwarf_section *section,
3101 unsigned char *data,
3102 unsigned char *end, void *file)
3104 unsigned char *start = section->start;
3106 printf (_("Raw dump of debug contents of section %s:\n\n"),
3111 static DWARF2_Internal_LineInfo saved_linfo;
3112 DWARF2_Internal_LineInfo linfo;
3113 unsigned char *standard_opcodes;
3114 unsigned char *end_of_sequence;
3117 if (const_strneq (section->name, ".debug_line.")
3118 /* Note: the following does not apply to .debug_line.dwo sections.
3119 These are full debug_line sections. */
3120 && strcmp (section->name, ".debug_line.dwo") != 0)
3122 /* Sections named .debug_line.<foo> are fragments of a .debug_line
3123 section containing just the Line Number Statements. They are
3124 created by the assembler and intended to be used alongside gcc's
3125 -ffunction-sections command line option. When the linker's
3126 garbage collection decides to discard a .text.<foo> section it
3127 can then also discard the line number information in .debug_line.<foo>.
3129 Since the section is a fragment it does not have the details
3130 needed to fill out a LineInfo structure, so instead we use the
3131 details from the last full debug_line section that we processed. */
3132 end_of_sequence = end;
3133 standard_opcodes = NULL;
3134 linfo = saved_linfo;
3135 /* PR 17531: file: 0522b371. */
3136 if (linfo.li_line_range == 0)
3138 warn (_("Partial .debug_line. section encountered without a prior full .debug_line section\n"));
3141 reset_state_machine (linfo.li_default_is_stmt);
3145 unsigned char * hdrptr;
3147 if ((hdrptr = read_debug_line_header (section, data, end, & linfo,
3148 & end_of_sequence)) == NULL)
3151 printf (_(" Offset: 0x%lx\n"), (long)(data - start));
3152 printf (_(" Length: %ld\n"), (long) linfo.li_length);
3153 printf (_(" DWARF Version: %d\n"), linfo.li_version);
3154 printf (_(" Prologue Length: %d\n"), (int) linfo.li_prologue_length);
3155 printf (_(" Minimum Instruction Length: %d\n"), linfo.li_min_insn_length);
3156 if (linfo.li_version >= 4)
3157 printf (_(" Maximum Ops per Instruction: %d\n"), linfo.li_max_ops_per_insn);
3158 printf (_(" Initial value of 'is_stmt': %d\n"), linfo.li_default_is_stmt);
3159 printf (_(" Line Base: %d\n"), linfo.li_line_base);
3160 printf (_(" Line Range: %d\n"), linfo.li_line_range);
3161 printf (_(" Opcode Base: %d\n"), linfo.li_opcode_base);
3163 /* PR 17512: file: 1665-6428-0.004. */
3164 if (linfo.li_line_range == 0)
3166 warn (_("Line range of 0 is invalid, using 1 instead\n"));
3167 linfo.li_line_range = 1;
3170 reset_state_machine (linfo.li_default_is_stmt);
3172 /* Display the contents of the Opcodes table. */
3173 standard_opcodes = hdrptr;
3175 /* PR 17512: file: 002-417945-0.004. */
3176 if (standard_opcodes + linfo.li_opcode_base >= end)
3178 warn (_("Line Base extends beyond end of section\n"));
3182 printf (_("\n Opcodes:\n"));
3184 for (i = 1; i < linfo.li_opcode_base; i++)
3185 printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]);
3187 /* Display the contents of the Directory table. */
3188 data = standard_opcodes + linfo.li_opcode_base - 1;
3190 if (linfo.li_version >= 5)
3192 load_debug_section (line_str, file);
3194 data = display_formatted_table (data, start, end, &linfo, section,
3196 data = display_formatted_table (data, start, end, &linfo, section,
3202 printf (_("\n The Directory Table is empty.\n"));
3205 unsigned int last_dir_entry = 0;
3207 printf (_("\n The Directory Table (offset 0x%lx):\n"),
3208 (long)(data - start));
3210 while (data < end && *data != 0)
3212 printf (" %d\t%.*s\n", ++last_dir_entry, (int) (end - data), data);
3214 data += strnlen ((char *) data, end - data) + 1;
3217 /* PR 17512: file: 002-132094-0.004. */
3218 if (data >= end - 1)
3222 /* Skip the NUL at the end of the table. */
3225 /* Display the contents of the File Name table. */
3227 printf (_("\n The File Name Table is empty.\n"));
3230 printf (_("\n The File Name Table (offset 0x%lx):\n"),
3231 (long)(data - start));
3232 printf (_(" Entry\tDir\tTime\tSize\tName\n"));
3234 while (data < end && *data != 0)
3236 unsigned char *name;
3237 unsigned int bytes_read;
3239 printf (" %d\t", ++state_machine_regs.last_file_entry);
3241 data += strnlen ((char *) data, end - data) + 1;
3244 dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
3247 dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
3250 dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end)));
3252 printf ("%.*s\n", (int)(end - name), name);
3256 warn (_("Corrupt file name table entry\n"));
3262 /* Skip the NUL at the end of the table. */
3267 saved_linfo = linfo;
3270 /* Now display the statements. */
3271 if (data >= end_of_sequence)
3272 printf (_(" No Line Number Statements.\n"));
3275 printf (_(" Line Number Statements:\n"));
3277 while (data < end_of_sequence)
3279 unsigned char op_code;
3280 dwarf_signed_vma adv;
3282 unsigned int bytes_read;
3284 printf (" [0x%08lx]", (long)(data - start));
3288 if (op_code >= linfo.li_opcode_base)
3290 op_code -= linfo.li_opcode_base;
3291 uladv = (op_code / linfo.li_line_range);
3292 if (linfo.li_max_ops_per_insn == 1)
3294 uladv *= linfo.li_min_insn_length;
3295 state_machine_regs.address += uladv;
3296 printf (_(" Special opcode %d: "
3297 "advance Address by %s to 0x%s"),
3298 op_code, dwarf_vmatoa ("u", uladv),
3299 dwarf_vmatoa ("x", state_machine_regs.address));
3303 state_machine_regs.address
3304 += ((state_machine_regs.op_index + uladv)
3305 / linfo.li_max_ops_per_insn)
3306 * linfo.li_min_insn_length;
3307 state_machine_regs.op_index
3308 = (state_machine_regs.op_index + uladv)
3309 % linfo.li_max_ops_per_insn;
3310 printf (_(" Special opcode %d: "
3311 "advance Address by %s to 0x%s[%d]"),
3312 op_code, dwarf_vmatoa ("u", uladv),
3313 dwarf_vmatoa ("x", state_machine_regs.address),
3314 state_machine_regs.op_index);
3316 adv = (op_code % linfo.li_line_range) + linfo.li_line_base;
3317 state_machine_regs.line += adv;
3318 printf (_(" and Line by %s to %d\n"),
3319 dwarf_vmatoa ("d", adv), state_machine_regs.line);
3321 else switch (op_code)
3323 case DW_LNS_extended_op:
3324 data += process_extended_line_op (data, linfo.li_default_is_stmt, end);
3328 printf (_(" Copy\n"));
3331 case DW_LNS_advance_pc:
3332 uladv = read_uleb128 (data, & bytes_read, end);
3334 if (linfo.li_max_ops_per_insn == 1)
3336 uladv *= linfo.li_min_insn_length;
3337 state_machine_regs.address += uladv;
3338 printf (_(" Advance PC by %s to 0x%s\n"),
3339 dwarf_vmatoa ("u", uladv),
3340 dwarf_vmatoa ("x", state_machine_regs.address));
3344 state_machine_regs.address
3345 += ((state_machine_regs.op_index + uladv)
3346 / linfo.li_max_ops_per_insn)
3347 * linfo.li_min_insn_length;
3348 state_machine_regs.op_index
3349 = (state_machine_regs.op_index + uladv)
3350 % linfo.li_max_ops_per_insn;
3351 printf (_(" Advance PC by %s to 0x%s[%d]\n"),
3352 dwarf_vmatoa ("u", uladv),
3353 dwarf_vmatoa ("x", state_machine_regs.address),
3354 state_machine_regs.op_index);
3358 case DW_LNS_advance_line:
3359 adv = read_sleb128 (data, & bytes_read, end);
3361 state_machine_regs.line += adv;
3362 printf (_(" Advance Line by %s to %d\n"),
3363 dwarf_vmatoa ("d", adv),
3364 state_machine_regs.line);
3367 case DW_LNS_set_file:
3368 adv = read_uleb128 (data, & bytes_read, end);
3370 printf (_(" Set File Name to entry %s in the File Name Table\n"),
3371 dwarf_vmatoa ("d", adv));
3372 state_machine_regs.file = adv;
3375 case DW_LNS_set_column:
3376 uladv = read_uleb128 (data, & bytes_read, end);
3378 printf (_(" Set column to %s\n"),
3379 dwarf_vmatoa ("u", uladv));
3380 state_machine_regs.column = uladv;
3383 case DW_LNS_negate_stmt:
3384 adv = state_machine_regs.is_stmt;
3386 printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv));
3387 state_machine_regs.is_stmt = adv;
3390 case DW_LNS_set_basic_block:
3391 printf (_(" Set basic block\n"));
3392 state_machine_regs.basic_block = 1;
3395 case DW_LNS_const_add_pc:
3396 uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range);
3397 if (linfo.li_max_ops_per_insn)
3399 uladv *= linfo.li_min_insn_length;
3400 state_machine_regs.address += uladv;
3401 printf (_(" Advance PC by constant %s to 0x%s\n"),
3402 dwarf_vmatoa ("u", uladv),
3403 dwarf_vmatoa ("x", state_machine_regs.address));
3407 state_machine_regs.address
3408 += ((state_machine_regs.op_index + uladv)
3409 / linfo.li_max_ops_per_insn)
3410 * linfo.li_min_insn_length;
3411 state_machine_regs.op_index
3412 = (state_machine_regs.op_index + uladv)
3413 % linfo.li_max_ops_per_insn;
3414 printf (_(" Advance PC by constant %s to 0x%s[%d]\n"),
3415 dwarf_vmatoa ("u", uladv),
3416 dwarf_vmatoa ("x", state_machine_regs.address),
3417 state_machine_regs.op_index);
3421 case DW_LNS_fixed_advance_pc:
3422 SAFE_BYTE_GET_AND_INC (uladv, data, 2, end);
3423 state_machine_regs.address += uladv;
3424 state_machine_regs.op_index = 0;
3425 printf (_(" Advance PC by fixed size amount %s to 0x%s\n"),
3426 dwarf_vmatoa ("u", uladv),
3427 dwarf_vmatoa ("x", state_machine_regs.address));
3430 case DW_LNS_set_prologue_end:
3431 printf (_(" Set prologue_end to true\n"));
3434 case DW_LNS_set_epilogue_begin:
3435 printf (_(" Set epilogue_begin to true\n"));
3438 case DW_LNS_set_isa:
3439 uladv = read_uleb128 (data, & bytes_read, end);
3441 printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv));
3445 printf (_(" Unknown opcode %d with operands: "), op_code);
3447 if (standard_opcodes != NULL)
3448 for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
3450 printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data,
3452 i == 1 ? "" : ", ");
3468 unsigned char *name;
3469 unsigned int directory_index;
3470 unsigned int modification_date;
3471 unsigned int length;
3474 /* Output a decoded representation of the .debug_line section. */
3477 display_debug_lines_decoded (struct dwarf_section *section,
3478 unsigned char *data,
3479 unsigned char *end, void *fileptr)
3481 static DWARF2_Internal_LineInfo saved_linfo;
3483 printf (_("Decoded dump of debug contents of section %s:\n\n"),
3488 /* This loop amounts to one iteration per compilation unit. */
3489 DWARF2_Internal_LineInfo linfo;
3490 unsigned char *standard_opcodes;
3491 unsigned char *end_of_sequence;
3493 File_Entry *file_table = NULL;
3494 unsigned int n_files = 0;
3495 unsigned char **directory_table = NULL;
3496 dwarf_vma n_directories = 0;
3498 if (const_strneq (section->name, ".debug_line.")
3499 /* Note: the following does not apply to .debug_line.dwo sections.
3500 These are full debug_line sections. */
3501 && strcmp (section->name, ".debug_line.dwo") != 0)
3503 /* See comment in display_debug_lines_raw(). */
3504 end_of_sequence = end;
3505 standard_opcodes = NULL;
3506 linfo = saved_linfo;
3507 /* PR 17531: file: 0522b371. */
3508 if (linfo.li_line_range == 0)
3510 warn (_("Partial .debug_line. section encountered without a prior full .debug_line section\n"));
3513 reset_state_machine (linfo.li_default_is_stmt);
3517 unsigned char *hdrptr;
3519 if ((hdrptr = read_debug_line_header (section, data, end, & linfo,
3520 & end_of_sequence)) == NULL)
3523 /* PR 17531: file: 0522b371. */
3524 if (linfo.li_line_range == 0)
3526 warn (_("Line range of 0 is invalid, using 1 instead\n"));
3527 linfo.li_line_range = 1;
3529 reset_state_machine (linfo.li_default_is_stmt);
3531 /* Save a pointer to the contents of the Opcodes table. */
3532 standard_opcodes = hdrptr;
3534 /* Traverse the Directory table just to count entries. */
3535 data = standard_opcodes + linfo.li_opcode_base - 1;
3539 warn (_("opcode base of %d extends beyond end of section\n"),
3540 linfo.li_opcode_base);
3544 if (linfo.li_version >= 5)
3546 unsigned char *format_start, format_count, *format;
3547 dwarf_vma formati, entryi;
3548 unsigned int bytes_read;
3550 load_debug_section (line_str, fileptr);
3552 /* Skip directories format. */
3553 SAFE_BYTE_GET_AND_INC (format_count, data, 1, end);
3554 format_start = data;
3555 for (formati = 0; formati < format_count; formati++)
3557 read_uleb128 (data, & bytes_read, end);
3559 read_uleb128 (data, & bytes_read, end);
3563 n_directories = read_uleb128 (data, & bytes_read, end);
3567 warn (_("Corrupt directories list\n"));
3571 directory_table = (unsigned char **)
3572 xmalloc (n_directories * sizeof (unsigned char *));
3574 for (entryi = 0; entryi < n_directories; entryi++)
3576 unsigned char **pathp = &directory_table[entryi];
3578 format = format_start;
3579 for (formati = 0; formati < format_count; formati++)
3581 dwarf_vma content_type, form;
3584 content_type = read_uleb128 (format, & bytes_read, end);
3585 format += bytes_read;
3586 form = read_uleb128 (format, & bytes_read, end);
3587 format += bytes_read;
3590 warn (_("Corrupt directories list\n"));
3593 switch (content_type)
3598 case DW_FORM_string:
3601 case DW_FORM_line_strp:
3602 SAFE_BYTE_GET (uvalue, data, linfo.li_offset_size,
3604 /* Remove const by the cast. */
3605 *pathp = (unsigned char *)
3606 fetch_indirect_line_string (uvalue);
3611 data = read_and_display_attr_value (0, form, 0, data, end,
3613 linfo.li_offset_size,
3620 warn (_("Corrupt directories list\n"));
3625 /* Skip files format. */
3626 SAFE_BYTE_GET_AND_INC (format_count, data, 1, end);
3627 format_start = data;
3628 for (formati = 0; formati < format_count; formati++)
3630 read_uleb128 (data, & bytes_read, end);
3632 read_uleb128 (data, & bytes_read, end);
3636 n_files = read_uleb128 (data, & bytes_read, end);
3640 warn (_("Corrupt file name list\n"));
3644 file_table = (File_Entry *) xcalloc (1, n_files
3645 * sizeof (File_Entry));
3647 for (entryi = 0; entryi < n_files; entryi++)
3649 File_Entry *file = &file_table[entryi];
3651 format = format_start;
3652 for (formati = 0; formati < format_count; formati++)
3654 dwarf_vma content_type, form;
3657 content_type = read_uleb128 (format, & bytes_read, end);
3658 format += bytes_read;
3659 form = read_uleb128 (format, & bytes_read, end);
3660 format += bytes_read;
3663 warn (_("Corrupt file name list\n"));
3666 switch (content_type)
3671 case DW_FORM_string:
3674 case DW_FORM_line_strp:
3675 SAFE_BYTE_GET (uvalue, data, linfo.li_offset_size,
3677 /* Remove const by the cast. */
3678 file->name = (unsigned char *)
3679 fetch_indirect_line_string (uvalue);
3683 case DW_LNCT_directory_index:
3687 SAFE_BYTE_GET (file->directory_index, data, 1,
3691 SAFE_BYTE_GET (file->directory_index, data, 2,
3695 file->directory_index = read_uleb128 (data, NULL,
3701 data = read_and_display_attr_value (0, form, 0, data, end,
3703 linfo.li_offset_size,
3710 warn (_("Corrupt file name list\n"));
3719 unsigned char *ptr_directory_table = data;
3721 while (data < end && *data != 0)
3723 data += strnlen ((char *) data, end - data) + 1;
3730 warn (_("directory table ends unexpectedly\n"));
3735 /* Go through the directory table again to save the directories. */
3736 directory_table = (unsigned char **)
3737 xmalloc (n_directories * sizeof (unsigned char *));
3740 while (*ptr_directory_table != 0)
3742 directory_table[i] = ptr_directory_table;
3743 ptr_directory_table += strnlen ((char *) ptr_directory_table,
3744 ptr_directory_table - end) + 1;
3748 /* Skip the NUL at the end of the table. */
3751 /* Traverse the File Name table just to count the entries. */
3752 if (data < end && *data != 0)
3754 unsigned char *ptr_file_name_table = data;
3756 while (data < end && *data != 0)
3758 unsigned int bytes_read;
3760 /* Skip Name, directory index, last modification time and length
3762 data += strnlen ((char *) data, end - data) + 1;
3763 read_uleb128 (data, & bytes_read, end);
3765 read_uleb128 (data, & bytes_read, end);
3767 read_uleb128 (data, & bytes_read, end);
3775 warn (_("file table ends unexpectedly\n"));
3780 /* Go through the file table again to save the strings. */
3781 file_table = (File_Entry *) xmalloc (n_files * sizeof (File_Entry));
3784 while (*ptr_file_name_table != 0)
3786 unsigned int bytes_read;
3788 file_table[i].name = ptr_file_name_table;
3789 ptr_file_name_table += strnlen ((char *) ptr_file_name_table,
3790 end - ptr_file_name_table) + 1;
3792 /* We are not interested in directory, time or size. */
3793 file_table[i].directory_index = read_uleb128 (ptr_file_name_table,
3795 ptr_file_name_table += bytes_read;
3796 file_table[i].modification_date = read_uleb128 (ptr_file_name_table,
3798 ptr_file_name_table += bytes_read;
3799 file_table[i].length = read_uleb128 (ptr_file_name_table, & bytes_read, end);
3800 ptr_file_name_table += bytes_read;
3806 /* Skip the NUL at the end of the table. */
3810 /* Print the Compilation Unit's name and a header. */
3811 if (directory_table == NULL)
3813 printf (_("CU: %s:\n"), file_table[0].name);
3814 printf (_("File name Line number Starting address\n"));
3818 unsigned int ix = file_table[0].directory_index;
3819 const char *directory;
3824 else if (n_directories == 0)
3825 directory = _("<unknown>");
3826 else if (ix > n_directories)
3828 warn (_("directory index %u > number of directories %s\n"),
3829 ix, dwarf_vmatoa ("u", n_directories));
3830 directory = _("<corrupt>");
3833 directory = (char *) directory_table[ix - 1];
3835 if (do_wide || strlen (directory) < 76)
3836 printf (_("CU: %s/%s:\n"), directory, file_table[0].name);
3838 printf ("%s:\n", file_table[0].name);
3840 printf (_("File name Line number Starting address\n"));
3843 saved_linfo = linfo;
3846 /* This loop iterates through the Dwarf Line Number Program. */
3847 while (data < end_of_sequence)
3849 unsigned char op_code;
3851 unsigned long int uladv;
3852 unsigned int bytes_read;
3853 int is_special_opcode = 0;
3857 if (op_code >= linfo.li_opcode_base)
3859 op_code -= linfo.li_opcode_base;
3860 uladv = (op_code / linfo.li_line_range);
3861 if (linfo.li_max_ops_per_insn == 1)
3863 uladv *= linfo.li_min_insn_length;
3864 state_machine_regs.address += uladv;
3868 state_machine_regs.address
3869 += ((state_machine_regs.op_index + uladv)
3870 / linfo.li_max_ops_per_insn)
3871 * linfo.li_min_insn_length;
3872 state_machine_regs.op_index
3873 = (state_machine_regs.op_index + uladv)
3874 % linfo.li_max_ops_per_insn;
3877 adv = (op_code % linfo.li_line_range) + linfo.li_line_base;
3878 state_machine_regs.line += adv;
3879 is_special_opcode = 1;
3881 else switch (op_code)
3883 case DW_LNS_extended_op:
3885 unsigned int ext_op_code_len;
3886 unsigned char ext_op_code;
3887 unsigned char *op_code_data = data;
3889 ext_op_code_len = read_uleb128 (op_code_data, &bytes_read,
3891 op_code_data += bytes_read;
3893 if (ext_op_code_len == 0)
3895 warn (_("Badly formed extended line op encountered!\n"));
3898 ext_op_code_len += bytes_read;
3899 ext_op_code = *op_code_data++;
3901 switch (ext_op_code)
3903 case DW_LNE_end_sequence:
3904 reset_state_machine (linfo.li_default_is_stmt);
3906 case DW_LNE_set_address:
3907 SAFE_BYTE_GET_AND_INC (state_machine_regs.address,
3909 ext_op_code_len - bytes_read - 1,
3911 state_machine_regs.op_index = 0;
3913 case DW_LNE_define_file:
3915 file_table = (File_Entry *) xrealloc
3916 (file_table, (n_files + 1) * sizeof (File_Entry));
3918 ++state_machine_regs.last_file_entry;
3919 /* Source file name. */
3920 file_table[n_files].name = op_code_data;
3921 op_code_data += strlen ((char *) op_code_data) + 1;
3922 /* Directory index. */
3923 file_table[n_files].directory_index =
3924 read_uleb128 (op_code_data, & bytes_read,
3926 op_code_data += bytes_read;
3927 /* Last modification time. */
3928 file_table[n_files].modification_date =
3929 read_uleb128 (op_code_data, & bytes_read,
3931 op_code_data += bytes_read;
3933 file_table[n_files].length =
3934 read_uleb128 (op_code_data, & bytes_read,
3940 case DW_LNE_set_discriminator:
3941 case DW_LNE_HP_set_sequence:
3942 /* Simply ignored. */
3946 printf (_("UNKNOWN (%u): length %d\n"),
3947 ext_op_code, ext_op_code_len - bytes_read);
3950 data += ext_op_code_len;
3956 case DW_LNS_advance_pc:
3957 uladv = read_uleb128 (data, & bytes_read, end);
3959 if (linfo.li_max_ops_per_insn == 1)
3961 uladv *= linfo.li_min_insn_length;
3962 state_machine_regs.address += uladv;
3966 state_machine_regs.address
3967 += ((state_machine_regs.op_index + uladv)
3968 / linfo.li_max_ops_per_insn)
3969 * linfo.li_min_insn_length;
3970 state_machine_regs.op_index
3971 = (state_machine_regs.op_index + uladv)
3972 % linfo.li_max_ops_per_insn;
3976 case DW_LNS_advance_line:
3977 adv = read_sleb128 (data, & bytes_read, end);
3979 state_machine_regs.line += adv;
3982 case DW_LNS_set_file:
3983 adv = read_uleb128 (data, & bytes_read, end);
3985 state_machine_regs.file = adv;
3988 unsigned file = state_machine_regs.file - 1;
3991 if (file_table == NULL || n_files == 0)
3992 printf (_("\n [Use file table entry %d]\n"), file);
3994 else if (file >= n_files)
3996 warn (_("file index %u > number of files %u\n"), file + 1, n_files);
3997 printf (_("\n <over large file table index %u>"), file);
3999 else if ((dir = file_table[file].directory_index) == 0)
4000 /* If directory index is 0, that means current directory. */
4001 printf ("\n./%s:[++]\n", file_table[file].name);
4002 else if (directory_table == NULL || n_directories == 0)
4003 printf (_("\n [Use file %s in directory table entry %d]\n"),
4004 file_table[file].name, dir);
4006 else if (dir > n_directories)
4008 warn (_("directory index %u > number of directories %s\n"),
4009 dir, dwarf_vmatoa ("u", n_directories));
4010 printf (_("\n <over large directory table entry %u>\n"), dir);
4013 printf ("\n%s/%s:\n",
4014 /* The directory index starts counting at 1. */
4015 directory_table[dir - 1], file_table[file].name);
4019 case DW_LNS_set_column:
4020 uladv = read_uleb128 (data, & bytes_read, end);
4022 state_machine_regs.column = uladv;
4025 case DW_LNS_negate_stmt:
4026 adv = state_machine_regs.is_stmt;
4028 state_machine_regs.is_stmt = adv;
4031 case DW_LNS_set_basic_block:
4032 state_machine_regs.basic_block = 1;
4035 case DW_LNS_const_add_pc:
4036 uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range);
4037 if (linfo.li_max_ops_per_insn == 1)
4039 uladv *= linfo.li_min_insn_length;
4040 state_machine_regs.address += uladv;
4044 state_machine_regs.address
4045 += ((state_machine_regs.op_index + uladv)
4046 / linfo.li_max_ops_per_insn)
4047 * linfo.li_min_insn_length;
4048 state_machine_regs.op_index
4049 = (state_machine_regs.op_index + uladv)
4050 % linfo.li_max_ops_per_insn;
4054 case DW_LNS_fixed_advance_pc:
4055 SAFE_BYTE_GET_AND_INC (uladv, data, 2, end);
4056 state_machine_regs.address += uladv;
4057 state_machine_regs.op_index = 0;
4060 case DW_LNS_set_prologue_end:
4063 case DW_LNS_set_epilogue_begin:
4066 case DW_LNS_set_isa:
4067 uladv = read_uleb128 (data, & bytes_read, end);
4069 printf (_(" Set ISA to %lu\n"), uladv);
4073 printf (_(" Unknown opcode %d with operands: "), op_code);
4075 if (standard_opcodes != NULL)
4076 for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
4078 printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data,
4080 i == 1 ? "" : ", ");
4087 /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row
4088 to the DWARF address/line matrix. */
4089 if ((is_special_opcode) || (op_code == DW_LNE_end_sequence)
4090 || (op_code == DW_LNS_copy))
4092 const unsigned int MAX_FILENAME_LENGTH = 35;
4094 char *newFileName = NULL;
4095 size_t fileNameLength;
4099 unsigned indx = state_machine_regs.file - 1;
4101 if (indx >= n_files)
4103 warn (_("corrupt file index %u encountered\n"), indx);
4104 fileName = _("<corrupt>");
4107 fileName = (char *) file_table[indx].name;
4110 fileName = _("<unknown>");
4112 fileNameLength = strlen (fileName);
4114 if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide))
4116 newFileName = (char *) xmalloc (MAX_FILENAME_LENGTH + 1);
4117 /* Truncate file name */
4118 strncpy (newFileName,
4119 fileName + fileNameLength - MAX_FILENAME_LENGTH,
4120 MAX_FILENAME_LENGTH + 1);
4124 newFileName = (char *) xmalloc (fileNameLength + 1);
4125 strncpy (newFileName, fileName, fileNameLength + 1);
4128 if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH))
4130 if (linfo.li_max_ops_per_insn == 1)
4131 printf ("%-35s %11d %#18" DWARF_VMA_FMT "x\n",
4132 newFileName, state_machine_regs.line,
4133 state_machine_regs.address);
4135 printf ("%-35s %11d %#18" DWARF_VMA_FMT "x[%d]\n",
4136 newFileName, state_machine_regs.line,
4137 state_machine_regs.address,
4138 state_machine_regs.op_index);
4142 if (linfo.li_max_ops_per_insn == 1)
4143 printf ("%s %11d %#18" DWARF_VMA_FMT "x\n",
4144 newFileName, state_machine_regs.line,
4145 state_machine_regs.address);
4147 printf ("%s %11d %#18" DWARF_VMA_FMT "x[%d]\n",
4148 newFileName, state_machine_regs.line,
4149 state_machine_regs.address,
4150 state_machine_regs.op_index);
4153 if (op_code == DW_LNE_end_sequence)
4167 if (directory_table)
4169 free (directory_table);
4170 directory_table = NULL;
4181 display_debug_lines (struct dwarf_section *section, void *file)
4183 unsigned char *data = section->start;
4184 unsigned char *end = data + section->size;
4186 int retValDecoded = 1;
4188 if (do_debug_lines == 0)
4189 do_debug_lines |= FLAG_DEBUG_LINES_RAW;
4191 if (do_debug_lines & FLAG_DEBUG_LINES_RAW)
4192 retValRaw = display_debug_lines_raw (section, data, end, file);
4194 if (do_debug_lines & FLAG_DEBUG_LINES_DECODED)
4195 retValDecoded = display_debug_lines_decoded (section, data, end, file);
4197 if (!retValRaw || !retValDecoded)
4204 find_debug_info_for_offset (unsigned long offset)
4208 if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE)
4211 for (i = 0; i < num_debug_info_entries; i++)
4212 if (debug_information[i].cu_offset == offset)
4213 return debug_information + i;
4219 get_gdb_index_symbol_kind_name (gdb_index_symbol_kind kind)
4221 /* See gdb/gdb-index.h. */
4222 static const char * const kinds[] =
4234 return _ (kinds[kind]);
4238 display_debug_pubnames_worker (struct dwarf_section *section,
4239 void *file ATTRIBUTE_UNUSED,
4242 DWARF2_Internal_PubNames names;
4243 unsigned char *start = section->start;
4244 unsigned char *end = start + section->size;
4246 /* It does not matter if this load fails,
4247 we test for that later on. */
4248 load_debug_info (file);
4250 printf (_("Contents of the %s section:\n\n"), section->name);
4254 unsigned char *data;
4257 unsigned int offset_size, initial_length_size;
4261 SAFE_BYTE_GET_AND_INC (names.pn_length, data, 4, end);
4262 if (names.pn_length == 0xffffffff)
4264 SAFE_BYTE_GET_AND_INC (names.pn_length, data, 8, end);
4266 initial_length_size = 12;
4271 initial_length_size = 4;
4274 SAFE_BYTE_GET_AND_INC (names.pn_version, data, 2, end);
4275 SAFE_BYTE_GET_AND_INC (names.pn_offset, data, offset_size, end);
4277 if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
4278 && num_debug_info_entries > 0
4279 && find_debug_info_for_offset (names.pn_offset) == NULL)
4280 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
4281 (unsigned long) names.pn_offset, section->name);
4283 SAFE_BYTE_GET_AND_INC (names.pn_size, data, offset_size, end);
4285 adr = start + names.pn_length + initial_length_size;
4286 /* PR 17531: file: 7615b6b2. */
4287 if ((dwarf_signed_vma) names.pn_length < 0
4288 /* PR 17531: file: a5dbeaa7. */
4291 warn (_("Negative length for public name: 0x%lx\n"), (long) names.pn_length);
4297 printf (_(" Length: %ld\n"),
4298 (long) names.pn_length);
4299 printf (_(" Version: %d\n"),
4301 printf (_(" Offset into .debug_info section: 0x%lx\n"),
4302 (unsigned long) names.pn_offset);
4303 printf (_(" Size of area in .debug_info section: %ld\n"),
4304 (long) names.pn_size);
4306 if (names.pn_version != 2 && names.pn_version != 3)
4308 static int warned = 0;
4312 warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
4320 printf (_("\n Offset Kind Name\n"));
4322 printf (_("\n Offset\tName\n"));
4326 bfd_size_type maxprint;
4328 SAFE_BYTE_GET (offset, data, offset_size, end);
4332 data += offset_size;
4335 maxprint = (end - data) - 1;
4339 unsigned int kind_data;
4340 gdb_index_symbol_kind kind;
4341 const char *kind_name;
4344 SAFE_BYTE_GET (kind_data, data, 1, end);
4347 /* GCC computes the kind as the upper byte in the CU index
4348 word, and then right shifts it by the CU index size.
4349 Left shift KIND to where the gdb-index.h accessor macros
4351 kind_data <<= GDB_INDEX_CU_BITSIZE;
4352 kind = GDB_INDEX_SYMBOL_KIND_VALUE (kind_data);
4353 kind_name = get_gdb_index_symbol_kind_name (kind);
4354 is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (kind_data);
4355 printf (" %-6lx %s,%-10s %.*s\n",
4356 (unsigned long) offset, is_static ? _("s") : _("g"),
4357 kind_name, (int) maxprint, data);
4360 printf (" %-6lx\t%.*s\n",
4361 (unsigned long) offset, (int) maxprint, data);
4363 data += strnlen ((char *) data, maxprint) + 1;
4368 while (offset != 0);
4376 display_debug_pubnames (struct dwarf_section *section, void *file)
4378 return display_debug_pubnames_worker (section, file, 0);
4382 display_debug_gnu_pubnames (struct dwarf_section *section, void *file)
4384 return display_debug_pubnames_worker (section, file, 1);
4388 display_debug_macinfo (struct dwarf_section *section,
4389 void *file ATTRIBUTE_UNUSED)
4391 unsigned char *start = section->start;
4392 unsigned char *end = start + section->size;
4393 unsigned char *curr = start;
4394 unsigned int bytes_read;
4395 enum dwarf_macinfo_record_type op;
4397 printf (_("Contents of the %s section:\n\n"), section->name);
4401 unsigned int lineno;
4402 const unsigned char *string;
4404 op = (enum dwarf_macinfo_record_type) *curr;
4409 case DW_MACINFO_start_file:
4411 unsigned int filenum;
4413 lineno = read_uleb128 (curr, & bytes_read, end);
4415 filenum = read_uleb128 (curr, & bytes_read, end);
4418 printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"),
4423 case DW_MACINFO_end_file:
4424 printf (_(" DW_MACINFO_end_file\n"));
4427 case DW_MACINFO_define:
4428 lineno = read_uleb128 (curr, & bytes_read, end);
4431 curr += strnlen ((char *) string, end - string) + 1;
4432 printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"),
4436 case DW_MACINFO_undef:
4437 lineno = read_uleb128 (curr, & bytes_read, end);
4440 curr += strnlen ((char *) string, end - string) + 1;
4441 printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"),
4445 case DW_MACINFO_vendor_ext:
4447 unsigned int constant;
4449 constant = read_uleb128 (curr, & bytes_read, end);
4452 curr += strnlen ((char *) string, end - string) + 1;
4453 printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"),
4463 /* Given LINE_OFFSET into the .debug_line section, attempt to return
4464 filename and dirname corresponding to file name table entry with index
4465 FILEIDX. Return NULL on failure. */
4467 static unsigned char *
4468 get_line_filename_and_dirname (dwarf_vma line_offset,
4470 unsigned char **dir_name)
4472 struct dwarf_section *section = &debug_displays [line].section;
4473 unsigned char *hdrptr, *dirtable, *file_name;
4474 unsigned int offset_size, initial_length_size;
4475 unsigned int version, opcode_base, bytes_read;
4476 dwarf_vma length, diridx;
4477 const unsigned char * end;
4480 if (section->start == NULL
4481 || line_offset >= section->size
4485 hdrptr = section->start + line_offset;
4486 end = section->start + section->size;
4488 SAFE_BYTE_GET_AND_INC (length, hdrptr, 4, end);
4489 if (length == 0xffffffff)
4491 /* This section is 64-bit DWARF 3. */
4492 SAFE_BYTE_GET_AND_INC (length, hdrptr, 8, end);
4494 initial_length_size = 12;
4499 initial_length_size = 4;
4501 if (length + initial_length_size > section->size)
4504 SAFE_BYTE_GET_AND_INC (version, hdrptr, 2, end);
4505 if (version != 2 && version != 3 && version != 4)
4507 hdrptr += offset_size + 1;/* Skip prologue_length and min_insn_length. */
4509 hdrptr++; /* Skip max_ops_per_insn. */
4510 hdrptr += 3; /* Skip default_is_stmt, line_base, line_range. */
4512 SAFE_BYTE_GET_AND_INC (opcode_base, hdrptr, 1, end);
4513 if (opcode_base == 0)
4516 hdrptr += opcode_base - 1;
4518 /* Skip over dirname table. */
4519 while (*hdrptr != '\0')
4520 hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1;
4521 hdrptr++; /* Skip the NUL at the end of the table. */
4522 /* Now skip over preceding filename table entries. */
4523 for (; *hdrptr != '\0' && fileidx > 1; fileidx--)
4525 hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1;
4526 read_uleb128 (hdrptr, &bytes_read, end);
4527 hdrptr += bytes_read;
4528 read_uleb128 (hdrptr, &bytes_read, end);
4529 hdrptr += bytes_read;
4530 read_uleb128 (hdrptr, &bytes_read, end);
4531 hdrptr += bytes_read;
4533 if (hdrptr == end || *hdrptr == '\0')
4536 hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1;
4537 diridx = read_uleb128 (hdrptr, &bytes_read, end);
4540 for (; *dirtable != '\0' && diridx > 1; diridx--)
4541 dirtable += strnlen ((char *) dirtable, end - dirtable) + 1;
4542 if (*dirtable == '\0')
4544 *dir_name = dirtable;
4549 display_debug_macro (struct dwarf_section *section,
4552 unsigned char *start = section->start;
4553 unsigned char *end = start + section->size;
4554 unsigned char *curr = start;
4555 unsigned char *extended_op_buf[256];
4556 unsigned int bytes_read;
4558 load_debug_section (str, file);
4559 load_debug_section (line, file);
4561 printf (_("Contents of the %s section:\n\n"), section->name);
4565 unsigned int lineno, version, flags;
4566 unsigned int offset_size = 4;
4567 const unsigned char *string;
4568 dwarf_vma line_offset = 0, sec_offset = curr - start, offset;
4569 unsigned char **extended_ops = NULL;
4571 SAFE_BYTE_GET_AND_INC (version, curr, 2, end);
4572 if (version != 4 && version != 5)
4574 error (_("Only GNU extension to DWARF 4 or 5 of %s is currently supported.\n"),
4579 SAFE_BYTE_GET_AND_INC (flags, curr, 1, end);
4582 printf (_(" Offset: 0x%lx\n"),
4583 (unsigned long) sec_offset);
4584 printf (_(" Version: %d\n"), version);
4585 printf (_(" Offset size: %d\n"), offset_size);
4588 SAFE_BYTE_GET_AND_INC (line_offset, curr, offset_size, end);
4589 printf (_(" Offset into .debug_line: 0x%lx\n"),
4590 (unsigned long) line_offset);
4594 unsigned int i, count, op;
4597 SAFE_BYTE_GET_AND_INC (count, curr, 1, end);
4599 memset (extended_op_buf, 0, sizeof (extended_op_buf));
4600 extended_ops = extended_op_buf;
4603 printf (_(" Extension opcode arguments:\n"));
4604 for (i = 0; i < count; i++)
4606 SAFE_BYTE_GET_AND_INC (op, curr, 1, end);
4607 extended_ops[op] = curr;
4608 nargs = read_uleb128 (curr, &bytes_read, end);
4611 printf (_(" DW_MACRO_%02x has no arguments\n"), op);
4614 printf (_(" DW_MACRO_%02x arguments: "), op);
4615 for (n = 0; n < nargs; n++)
4619 SAFE_BYTE_GET_AND_INC (form, curr, 1, end);
4620 printf ("%s%s", get_FORM_name (form),
4621 n == nargs - 1 ? "\n" : ", ");
4631 case DW_FORM_block1:
4632 case DW_FORM_block2:
4633 case DW_FORM_block4:
4635 case DW_FORM_string:
4637 case DW_FORM_sec_offset:
4640 error (_("Invalid extension opcode form %s\n"),
4641 get_FORM_name (form));
4657 error (_(".debug_macro section not zero terminated\n"));
4661 SAFE_BYTE_GET_AND_INC (op, curr, 1, end);
4667 case DW_MACRO_start_file:
4669 unsigned int filenum;
4670 unsigned char *file_name = NULL, *dir_name = NULL;
4672 lineno = read_uleb128 (curr, &bytes_read, end);
4674 filenum = read_uleb128 (curr, &bytes_read, end);
4677 if ((flags & 2) == 0)
4678 error (_("DW_MACRO_start_file used, but no .debug_line offset provided.\n"));
4681 = get_line_filename_and_dirname (line_offset, filenum,
4683 if (file_name == NULL)
4684 printf (_(" DW_MACRO_start_file - lineno: %d filenum: %d\n"),
4687 printf (_(" DW_MACRO_start_file - lineno: %d filenum: %d filename: %s%s%s\n"),
4689 dir_name != NULL ? (const char *) dir_name : "",
4690 dir_name != NULL ? "/" : "", file_name);
4694 case DW_MACRO_end_file:
4695 printf (_(" DW_MACRO_end_file\n"));
4698 case DW_MACRO_define:
4699 lineno = read_uleb128 (curr, &bytes_read, end);
4702 curr += strnlen ((char *) string, end - string) + 1;
4703 printf (_(" DW_MACRO_define - lineno : %d macro : %s\n"),
4707 case DW_MACRO_undef:
4708 lineno = read_uleb128 (curr, &bytes_read, end);
4711 curr += strnlen ((char *) string, end - string) + 1;
4712 printf (_(" DW_MACRO_undef - lineno : %d macro : %s\n"),
4716 case DW_MACRO_define_strp:
4717 lineno = read_uleb128 (curr, &bytes_read, end);
4719 SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
4720 string = fetch_indirect_string (offset);
4721 printf (_(" DW_MACRO_define_strp - lineno : %d macro : %s\n"),
4725 case DW_MACRO_undef_strp:
4726 lineno = read_uleb128 (curr, &bytes_read, end);
4728 SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
4729 string = fetch_indirect_string (offset);
4730 printf (_(" DW_MACRO_undef_strp - lineno : %d macro : %s\n"),
4734 case DW_MACRO_import:
4735 SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
4736 printf (_(" DW_MACRO_import - offset : 0x%lx\n"),
4737 (unsigned long) offset);
4740 case DW_MACRO_define_sup:
4741 lineno = read_uleb128 (curr, &bytes_read, end);
4743 SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
4744 printf (_(" DW_MACRO_define_sup - lineno : %d macro offset : 0x%lx\n"),
4745 lineno, (unsigned long) offset);
4748 case DW_MACRO_undef_sup:
4749 lineno = read_uleb128 (curr, &bytes_read, end);
4751 SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
4752 printf (_(" DW_MACRO_undef_sup - lineno : %d macro offset : 0x%lx\n"),
4753 lineno, (unsigned long) offset);
4756 case DW_MACRO_import_sup:
4757 SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end);
4758 printf (_(" DW_MACRO_import_sup - offset : 0x%lx\n"),
4759 (unsigned long) offset);
4763 if (extended_ops == NULL || extended_ops[op] == NULL)
4765 error (_(" Unknown macro opcode %02x seen\n"), op);
4770 /* Skip over unhandled opcodes. */
4772 unsigned char *desc = extended_ops[op];
4773 nargs = read_uleb128 (desc, &bytes_read, end);
4777 printf (_(" DW_MACRO_%02x\n"), op);
4780 printf (_(" DW_MACRO_%02x -"), op);
4781 for (n = 0; n < nargs; n++)
4785 /* DW_FORM_implicit_const is not expected here. */
4786 SAFE_BYTE_GET_AND_INC (val, desc, 1, end);
4788 = read_and_display_attr_value (0, val, 0,
4789 curr, end, 0, 0, offset_size,
4790 version, NULL, 0, NULL,
4808 display_debug_abbrev (struct dwarf_section *section,
4809 void *file ATTRIBUTE_UNUSED)
4811 abbrev_entry *entry;
4812 unsigned char *start = section->start;
4813 unsigned char *end = start + section->size;
4815 printf (_("Contents of the %s section:\n\n"), section->name);
4819 unsigned char *last;
4824 start = process_abbrev_section (start, end);
4826 if (first_abbrev == NULL)
4829 printf (_(" Number TAG (0x%lx)\n"), (long) (last - section->start));
4831 for (entry = first_abbrev; entry; entry = entry->next)
4835 printf (" %ld %s [%s]\n",
4837 get_TAG_name (entry->tag),
4838 entry->children ? _("has children") : _("no children"));
4840 for (attr = entry->first_attr; attr; attr = attr->next)
4842 printf (" %-18s %s",
4843 get_AT_name (attr->attribute),
4844 get_FORM_name (attr->form));
4845 if (attr->form == DW_FORM_implicit_const)
4846 printf (": %" BFD_VMA_FMT "d", attr->implicit_const);
4858 /* Return true when ADDR is the maximum address, when addresses are
4859 POINTER_SIZE bytes long. */
4862 is_max_address (dwarf_vma addr, unsigned int pointer_size)
4864 dwarf_vma mask = ~(~(dwarf_vma) 1 << (pointer_size * 8 - 1));
4865 return ((addr & mask) == mask);
4868 /* Display a location list from a normal (ie, non-dwo) .debug_loc section. */
4871 display_loc_list (struct dwarf_section *section,
4872 unsigned char **start_ptr,
4873 unsigned int debug_info_entry,
4875 dwarf_vma base_address,
4878 unsigned char *start = *start_ptr;
4879 unsigned char *section_end = section->start + section->size;
4880 unsigned long cu_offset;
4881 unsigned int pointer_size;
4882 unsigned int offset_size;
4887 unsigned short length;
4888 int need_frame_base;
4890 if (debug_info_entry >= num_debug_info_entries)
4892 warn (_("No debug information available for loc lists of entry: %u\n"),
4897 cu_offset = debug_information [debug_info_entry].cu_offset;
4898 pointer_size = debug_information [debug_info_entry].pointer_size;
4899 offset_size = debug_information [debug_info_entry].offset_size;
4900 dwarf_version = debug_information [debug_info_entry].dwarf_version;
4902 if (pointer_size < 2 || pointer_size > 8)
4904 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
4905 pointer_size, debug_info_entry);
4911 dwarf_vma off = offset + (start - *start_ptr);
4913 if (start + 2 * pointer_size > section_end)
4915 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
4916 (unsigned long) offset);
4920 printf (" %8.8lx ", (unsigned long) off);
4922 SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, section_end);
4923 SAFE_BYTE_GET_AND_INC (end, start, pointer_size, section_end);
4925 if (begin == 0 && end == 0)
4927 /* PR 18374: In a object file we can have a location list that
4928 starts with a begin and end of 0 because there are relocations
4929 that need to be applied to the addresses. Actually applying
4930 the relocations now does not help as they will probably resolve
4931 to 0, since the object file has not been fully linked. Real
4932 end of list markers will not have any relocations against them. */
4933 if (! reloc_at (section, off)
4934 && ! reloc_at (section, off + pointer_size))
4936 printf (_("<End of list>\n"));
4941 /* Check base address specifiers. */
4942 if (is_max_address (begin, pointer_size)
4943 && !is_max_address (end, pointer_size))
4946 print_dwarf_vma (begin, pointer_size);
4947 print_dwarf_vma (end, pointer_size);
4948 printf (_("(base address)\n"));
4952 if (start + 2 > section_end)
4954 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
4955 (unsigned long) offset);
4959 SAFE_BYTE_GET_AND_INC (length, start, 2, section_end);
4961 if (start + length > section_end)
4963 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
4964 (unsigned long) offset);
4968 print_dwarf_vma (begin + base_address, pointer_size);
4969 print_dwarf_vma (end + base_address, pointer_size);
4972 need_frame_base = decode_location_expression (start,
4977 cu_offset, section);
4980 if (need_frame_base && !has_frame_base)
4981 printf (_(" [without DW_AT_frame_base]"));
4984 fputs (_(" (start == end)"), stdout);
4985 else if (begin > end)
4986 fputs (_(" (start > end)"), stdout);
4996 /* Display a location list from a normal (ie, non-dwo) .debug_loclists section. */
4999 display_loclists_list (struct dwarf_section *section,
5000 unsigned char **start_ptr,
5001 unsigned int debug_info_entry,
5003 dwarf_vma base_address,
5006 unsigned char *start = *start_ptr;
5007 unsigned char *section_end = section->start + section->size;
5008 unsigned long cu_offset;
5009 unsigned int pointer_size;
5010 unsigned int offset_size;
5012 unsigned int bytes_read;
5017 int need_frame_base;
5019 if (debug_info_entry >= num_debug_info_entries)
5021 warn (_("No debug information available for "
5022 "loclists lists of entry: %u\n"),
5027 cu_offset = debug_information [debug_info_entry].cu_offset;
5028 pointer_size = debug_information [debug_info_entry].pointer_size;
5029 offset_size = debug_information [debug_info_entry].offset_size;
5030 dwarf_version = debug_information [debug_info_entry].dwarf_version;
5032 if (pointer_size < 2 || pointer_size > 8)
5034 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
5035 pointer_size, debug_info_entry);
5041 dwarf_vma off = offset + (start - *start_ptr);
5042 enum dwarf_location_list_entry_type llet;
5044 if (start + 1 > section_end)
5046 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
5047 (unsigned long) offset);
5051 printf (" %8.8lx ", (unsigned long) off);
5053 SAFE_BYTE_GET_AND_INC (llet, start, 1, section_end);
5057 case DW_LLE_end_of_list:
5058 printf (_("<End of list>\n"));
5060 case DW_LLE_offset_pair:
5061 begin = read_uleb128 (start, &bytes_read, section_end);
5062 start += bytes_read;
5063 end = read_uleb128 (start, &bytes_read, section_end);
5064 start += bytes_read;
5066 case DW_LLE_base_address:
5067 SAFE_BYTE_GET_AND_INC (base_address, start, pointer_size,
5069 print_dwarf_vma (base_address, pointer_size);
5070 printf (_("(base address)\n"));
5073 error (_("Invalid location list entry type %d\n"), llet);
5076 if (llet == DW_LLE_end_of_list)
5078 if (llet != DW_LLE_offset_pair)
5081 if (start + 2 > section_end)
5083 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
5084 (unsigned long) offset);
5088 length = read_uleb128 (start, &bytes_read, section_end);
5089 start += bytes_read;
5091 print_dwarf_vma (begin + base_address, pointer_size);
5092 print_dwarf_vma (end + base_address, pointer_size);
5095 need_frame_base = decode_location_expression (start,
5100 cu_offset, section);
5103 if (need_frame_base && !has_frame_base)
5104 printf (_(" [without DW_AT_frame_base]"));
5107 fputs (_(" (start == end)"), stdout);
5108 else if (begin > end)
5109 fputs (_(" (start > end)"), stdout);
5119 /* Print a .debug_addr table index in decimal, surrounded by square brackets,
5120 right-adjusted in a field of length LEN, and followed by a space. */
5123 print_addr_index (unsigned int idx, unsigned int len)
5125 static char buf[15];
5126 snprintf (buf, sizeof (buf), "[%d]", idx);
5127 printf ("%*s ", len, buf);
5130 /* Display a location list from a .dwo section. It uses address indexes rather
5131 than embedded addresses. This code closely follows display_loc_list, but the
5132 two are sufficiently different that combining things is very ugly. */
5135 display_loc_list_dwo (struct dwarf_section *section,
5136 unsigned char **start_ptr,
5137 unsigned int debug_info_entry,
5141 unsigned char *start = *start_ptr;
5142 unsigned char *section_end = section->start + section->size;
5143 unsigned long cu_offset;
5144 unsigned int pointer_size;
5145 unsigned int offset_size;
5148 unsigned short length;
5149 int need_frame_base;
5151 unsigned int bytes_read;
5153 if (debug_info_entry >= num_debug_info_entries)
5155 warn (_("No debug information for loc lists of entry: %u\n"),
5160 cu_offset = debug_information [debug_info_entry].cu_offset;
5161 pointer_size = debug_information [debug_info_entry].pointer_size;
5162 offset_size = debug_information [debug_info_entry].offset_size;
5163 dwarf_version = debug_information [debug_info_entry].dwarf_version;
5165 if (pointer_size < 2 || pointer_size > 8)
5167 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
5168 pointer_size, debug_info_entry);
5174 printf (" %8.8lx ", (unsigned long) (offset + (start - *start_ptr)));
5176 if (start >= section_end)
5178 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
5179 (unsigned long) offset);
5183 SAFE_BYTE_GET_AND_INC (entry_type, start, 1, section_end);
5186 case 0: /* A terminating entry. */
5188 printf (_("<End of list>\n"));
5190 case 1: /* A base-address entry. */
5191 idx = read_uleb128 (start, &bytes_read, section_end);
5192 start += bytes_read;
5193 print_addr_index (idx, 8);
5195 printf (_("(base address selection entry)\n"));
5197 case 2: /* A start/end entry. */
5198 idx = read_uleb128 (start, &bytes_read, section_end);
5199 start += bytes_read;
5200 print_addr_index (idx, 8);
5201 idx = read_uleb128 (start, &bytes_read, section_end);
5202 start += bytes_read;
5203 print_addr_index (idx, 8);
5205 case 3: /* A start/length entry. */
5206 idx = read_uleb128 (start, &bytes_read, section_end);
5207 start += bytes_read;
5208 print_addr_index (idx, 8);
5209 SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end);
5210 printf ("%08x ", idx);
5212 case 4: /* An offset pair entry. */
5213 SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end);
5214 printf ("%08x ", idx);
5215 SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end);
5216 printf ("%08x ", idx);
5219 warn (_("Unknown location list entry type 0x%x.\n"), entry_type);
5224 if (start + 2 > section_end)
5226 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
5227 (unsigned long) offset);
5231 SAFE_BYTE_GET_AND_INC (length, start, 2, section_end);
5232 if (start + length > section_end)
5234 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
5235 (unsigned long) offset);
5240 need_frame_base = decode_location_expression (start,
5245 cu_offset, section);
5248 if (need_frame_base && !has_frame_base)
5249 printf (_(" [without DW_AT_frame_base]"));
5259 /* Sort array of indexes in ascending order of loc_offsets[idx]. */
5261 static dwarf_vma *loc_offsets;
5264 loc_offsets_compar (const void *ap, const void *bp)
5266 dwarf_vma a = loc_offsets[*(const unsigned int *) ap];
5267 dwarf_vma b = loc_offsets[*(const unsigned int *) bp];
5269 return (a > b) - (b > a);
5273 display_debug_loc (struct dwarf_section *section, void *file)
5275 unsigned char *start = section->start;
5276 unsigned long bytes;
5277 unsigned char *section_begin = start;
5278 unsigned int num_loc_list = 0;
5279 unsigned long last_offset = 0;
5280 unsigned int first = 0;
5283 int seen_first_offset = 0;
5284 int locs_sorted = 1;
5285 unsigned char *next;
5286 unsigned int *array = NULL;
5287 const char *suffix = strrchr (section->name, '.');
5289 int is_loclists = strstr (section->name, "debug_loclists") != NULL;
5290 dwarf_vma expected_start = 0;
5292 if (suffix && strcmp (suffix, ".dwo") == 0)
5295 bytes = section->size;
5299 printf (_("\nThe %s section is empty.\n"), section->name);
5305 unsigned char *hdrptr = section_begin;
5306 dwarf_vma ll_length;
5307 unsigned short ll_version;
5308 unsigned char *end = section_begin + section->size;
5309 unsigned char address_size, segment_selector_size;
5310 uint32_t offset_entry_count;
5312 SAFE_BYTE_GET_AND_INC (ll_length, hdrptr, 4, end);
5313 if (ll_length == 0xffffffff)
5314 SAFE_BYTE_GET_AND_INC (ll_length, hdrptr, 8, end);
5316 SAFE_BYTE_GET_AND_INC (ll_version, hdrptr, 2, end);
5317 if (ll_version != 5)
5319 warn (_("The %s section contains corrupt or "
5320 "unsupported version number: %d.\n"),
5321 section->name, ll_version);
5325 SAFE_BYTE_GET_AND_INC (address_size, hdrptr, 1, end);
5327 SAFE_BYTE_GET_AND_INC (segment_selector_size, hdrptr, 1, end);
5328 if (segment_selector_size != 0)
5330 warn (_("The %s section contains "
5331 "unsupported segment selector size: %d.\n"),
5332 section->name, segment_selector_size);
5336 SAFE_BYTE_GET_AND_INC (offset_entry_count, hdrptr, 4, end);
5337 if (offset_entry_count != 0)
5339 warn (_("The %s section contains "
5340 "unsupported offset entry count: %d.\n"),
5341 section->name, offset_entry_count);
5345 expected_start = hdrptr - section_begin;
5348 if (load_debug_info (file) == 0)
5350 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
5355 /* Check the order of location list in .debug_info section. If
5356 offsets of location lists are in the ascending order, we can
5357 use `debug_information' directly. */
5358 for (i = 0; i < num_debug_info_entries; i++)
5362 num = debug_information [i].num_loc_offsets;
5363 if (num > num_loc_list)
5366 /* Check if we can use `debug_information' directly. */
5367 if (locs_sorted && num != 0)
5369 if (!seen_first_offset)
5371 /* This is the first location list. */
5372 last_offset = debug_information [i].loc_offsets [0];
5374 seen_first_offset = 1;
5380 for (; j < num; j++)
5383 debug_information [i].loc_offsets [j])
5388 last_offset = debug_information [i].loc_offsets [j];
5393 if (!seen_first_offset)
5394 error (_("No location lists in .debug_info section!\n"));
5396 if (debug_information [first].num_loc_offsets > 0
5397 && debug_information [first].loc_offsets [0] != expected_start)
5398 warn (_("Location lists in %s section start at 0x%s\n"),
5400 dwarf_vmatoa ("x", debug_information [first].loc_offsets [0]));
5403 array = (unsigned int *) xcmalloc (num_loc_list, sizeof (unsigned int));
5404 printf (_("Contents of the %s section:\n\n"), section->name);
5405 if (reloc_at (section, 0))
5406 printf (_(" Warning: This section has relocations - addresses seen here may not be accurate.\n\n"));
5407 printf (_(" Offset Begin End Expression\n"));
5409 seen_first_offset = 0;
5410 for (i = first; i < num_debug_info_entries; i++)
5413 dwarf_vma base_address;
5419 for (k = 0; k < debug_information [i].num_loc_offsets; k++)
5421 loc_offsets = debug_information [i].loc_offsets;
5422 qsort (array, debug_information [i].num_loc_offsets,
5423 sizeof (*array), loc_offsets_compar);
5426 for (k = 0; k < debug_information [i].num_loc_offsets; k++)
5428 j = locs_sorted ? k : array[k];
5430 && debug_information [i].loc_offsets [locs_sorted
5431 ? k - 1 : array [k - 1]]
5432 == debug_information [i].loc_offsets [j])
5434 has_frame_base = debug_information [i].have_frame_base [j];
5435 offset = debug_information [i].loc_offsets [j];
5436 next = section_begin + offset;
5437 base_address = debug_information [i].base_address;
5439 if (!seen_first_offset)
5440 seen_first_offset = 1;
5444 warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
5445 (unsigned long) (start - section_begin),
5446 (unsigned long) offset);
5447 else if (start > next)
5448 warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
5449 (unsigned long) (start - section_begin),
5450 (unsigned long) offset);
5454 if (offset >= bytes)
5456 warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"),
5457 (unsigned long) offset);
5464 display_loc_list_dwo (section, &start, i, offset,
5467 display_loc_list (section, &start, i, offset, base_address,
5473 warn (_("DWO is not yet supported.\n"));
5475 display_loclists_list (section, &start, i, offset, base_address,
5481 if (start < section->start + section->size)
5482 warn (_("There are %ld unused bytes at the end of section %s\n"),
5483 (long) (section->start + section->size - start), section->name);
5490 display_debug_str (struct dwarf_section *section,
5491 void *file ATTRIBUTE_UNUSED)
5493 unsigned char *start = section->start;
5494 unsigned long bytes = section->size;
5495 dwarf_vma addr = section->address;
5499 printf (_("\nThe %s section is empty.\n"), section->name);
5503 printf (_("Contents of the %s section:\n\n"), section->name);
5511 lbytes = (bytes > 16 ? 16 : bytes);
5513 printf (" 0x%8.8lx ", (unsigned long) addr);
5515 for (j = 0; j < 16; j++)
5518 printf ("%2.2x", start[j]);
5526 for (j = 0; j < lbytes; j++)
5529 if (k >= ' ' && k < 0x80)
5548 display_debug_info (struct dwarf_section *section, void *file)
5550 return process_debug_info (section, file, section->abbrev_sec, 0, 0);
5554 display_debug_types (struct dwarf_section *section, void *file)
5556 return process_debug_info (section, file, section->abbrev_sec, 0, 1);
5560 display_trace_info (struct dwarf_section *section, void *file)
5562 return process_debug_info (section, file, section->abbrev_sec, 0, 0);
5566 display_debug_aranges (struct dwarf_section *section,
5567 void *file ATTRIBUTE_UNUSED)
5569 unsigned char *start = section->start;
5570 unsigned char *end = start + section->size;
5572 printf (_("Contents of the %s section:\n\n"), section->name);
5574 /* It does not matter if this load fails,
5575 we test for that later on. */
5576 load_debug_info (file);
5580 unsigned char *hdrptr;
5581 DWARF2_Internal_ARange arange;
5582 unsigned char *addr_ranges;
5585 unsigned char address_size;
5587 unsigned int offset_size;
5588 unsigned int initial_length_size;
5592 SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 4, end);
5593 if (arange.ar_length == 0xffffffff)
5595 SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 8, end);
5597 initial_length_size = 12;
5602 initial_length_size = 4;
5605 SAFE_BYTE_GET_AND_INC (arange.ar_version, hdrptr, 2, end);
5606 SAFE_BYTE_GET_AND_INC (arange.ar_info_offset, hdrptr, offset_size, end);
5608 if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE
5609 && num_debug_info_entries > 0
5610 && find_debug_info_for_offset (arange.ar_info_offset) == NULL)
5611 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
5612 (unsigned long) arange.ar_info_offset, section->name);
5614 SAFE_BYTE_GET_AND_INC (arange.ar_pointer_size, hdrptr, 1, end);
5615 SAFE_BYTE_GET_AND_INC (arange.ar_segment_size, hdrptr, 1, end);
5617 if (arange.ar_version != 2 && arange.ar_version != 3)
5619 /* PR 19872: A version number of 0 probably means that there is
5620 padding at the end of the .debug_aranges section. Gold puts
5621 it there when performing an incremental link, for example.
5622 So do not generate a warning in this case. */
5623 if (arange.ar_version)
5624 warn (_("Only DWARF 2 and 3 aranges are currently supported.\n"));
5628 printf (_(" Length: %ld\n"),
5629 (long) arange.ar_length);
5630 printf (_(" Version: %d\n"), arange.ar_version);
5631 printf (_(" Offset into .debug_info: 0x%lx\n"),
5632 (unsigned long) arange.ar_info_offset);
5633 printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size);
5634 printf (_(" Segment Size: %d\n"), arange.ar_segment_size);
5636 address_size = arange.ar_pointer_size + arange.ar_segment_size;
5638 /* PR 17512: file: 001-108546-0.001:0.1. */
5639 if (address_size == 0 || address_size > 8)
5641 error (_("Invalid address size in %s section!\n"),
5646 /* The DWARF spec does not require that the address size be a power
5647 of two, but we do. This will have to change if we ever encounter
5648 an uneven architecture. */
5649 if ((address_size & (address_size - 1)) != 0)
5651 warn (_("Pointer size + Segment size is not a power of two.\n"));
5655 if (address_size > 4)
5656 printf (_("\n Address Length\n"));
5658 printf (_("\n Address Length\n"));
5660 addr_ranges = hdrptr;
5662 /* Must pad to an alignment boundary that is twice the address size. */
5663 excess = (hdrptr - start) % (2 * address_size);
5665 addr_ranges += (2 * address_size) - excess;
5667 hdrptr = start + arange.ar_length + initial_length_size;
5668 if (hdrptr < start || hdrptr > end)
5670 error (_("Excessive header length: %lx\n"), (long) arange.ar_length);
5675 while (addr_ranges + 2 * address_size <= start)
5677 SAFE_BYTE_GET_AND_INC (address, addr_ranges, address_size, end);
5678 SAFE_BYTE_GET_AND_INC (length, addr_ranges, address_size, end);
5681 print_dwarf_vma (address, address_size);
5682 print_dwarf_vma (length, address_size);
5692 /* Comparison function for qsort. */
5694 comp_addr_base (const void * v0, const void * v1)
5696 debug_info * info0 = (debug_info *) v0;
5697 debug_info * info1 = (debug_info *) v1;
5698 return info0->addr_base - info1->addr_base;
5701 /* Display the debug_addr section. */
5703 display_debug_addr (struct dwarf_section *section,
5706 debug_info **debug_addr_info;
5707 unsigned char *entry;
5712 if (section->size == 0)
5714 printf (_("\nThe %s section is empty.\n"), section->name);
5718 if (load_debug_info (file) == 0)
5720 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
5725 printf (_("Contents of the %s section:\n\n"), section->name);
5727 /* PR 17531: file: cf38d01b.
5728 We use xcalloc because a corrupt file may not have initialised all of the
5729 fields in the debug_info structure, which means that the sort below might
5730 try to move uninitialised data. */
5731 debug_addr_info = (debug_info **) xcalloc ((num_debug_info_entries + 1),
5732 sizeof (debug_info *));
5735 for (i = 0; i < num_debug_info_entries; i++)
5736 if (debug_information [i].addr_base != DEBUG_INFO_UNAVAILABLE)
5738 /* PR 17531: file: cf38d01b. */
5739 if (debug_information[i].addr_base >= section->size)
5740 warn (_("Corrupt address base (%lx) found in debug section %u\n"),
5741 (unsigned long) debug_information[i].addr_base, i);
5743 debug_addr_info [count++] = debug_information + i;
5746 /* Add a sentinel to make iteration convenient. */
5747 debug_addr_info [count] = (debug_info *) xmalloc (sizeof (debug_info));
5748 debug_addr_info [count]->addr_base = section->size;
5749 qsort (debug_addr_info, count, sizeof (debug_info *), comp_addr_base);
5751 for (i = 0; i < count; i++)
5754 unsigned int address_size = debug_addr_info [i]->pointer_size;
5756 printf (_(" For compilation unit at offset 0x%s:\n"),
5757 dwarf_vmatoa ("x", debug_addr_info [i]->cu_offset));
5759 printf (_("\tIndex\tAddress\n"));
5760 entry = section->start + debug_addr_info [i]->addr_base;
5761 end = section->start + debug_addr_info [i + 1]->addr_base;
5765 dwarf_vma base = byte_get (entry, address_size);
5766 printf (_("\t%d:\t"), idx);
5767 print_dwarf_vma (base, address_size);
5769 entry += address_size;
5775 free (debug_addr_info);
5779 /* Display the .debug_str_offsets and .debug_str_offsets.dwo sections. */
5781 display_debug_str_offsets (struct dwarf_section *section,
5782 void *file ATTRIBUTE_UNUSED)
5784 if (section->size == 0)
5786 printf (_("\nThe %s section is empty.\n"), section->name);
5789 /* TODO: Dump the contents. This is made somewhat difficult by not knowing
5790 what the offset size is for this section. */
5794 /* Each debug_information[x].range_lists[y] gets this representation for
5795 sorting purposes. */
5799 /* The debug_information[x].range_lists[y] value. */
5800 dwarf_vma ranges_offset;
5802 /* Original debug_information to find parameters of the data. */
5803 debug_info *debug_info_p;
5806 /* Sort struct range_entry in ascending order of its RANGES_OFFSET. */
5809 range_entry_compar (const void *ap, const void *bp)
5811 const struct range_entry *a_re = (const struct range_entry *) ap;
5812 const struct range_entry *b_re = (const struct range_entry *) bp;
5813 const dwarf_vma a = a_re->ranges_offset;
5814 const dwarf_vma b = b_re->ranges_offset;
5816 return (a > b) - (b > a);
5820 display_debug_ranges_list (unsigned char *start, unsigned char *finish,
5821 unsigned int pointer_size, unsigned long offset,
5822 unsigned long base_address)
5824 while (start < finish)
5829 SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, finish);
5830 if (start >= finish)
5832 SAFE_SIGNED_BYTE_GET_AND_INC (end, start, pointer_size, finish);
5834 printf (" %8.8lx ", offset);
5836 if (begin == 0 && end == 0)
5838 printf (_("<End of list>\n"));
5842 /* Check base address specifiers. */
5843 if (is_max_address (begin, pointer_size)
5844 && !is_max_address (end, pointer_size))
5847 print_dwarf_vma (begin, pointer_size);
5848 print_dwarf_vma (end, pointer_size);
5849 printf ("(base address)\n");
5853 print_dwarf_vma (begin + base_address, pointer_size);
5854 print_dwarf_vma (end + base_address, pointer_size);
5857 fputs (_("(start == end)"), stdout);
5858 else if (begin > end)
5859 fputs (_("(start > end)"), stdout);
5866 display_debug_rnglists_list (unsigned char *start, unsigned char *finish,
5867 unsigned int pointer_size, unsigned long offset,
5868 unsigned long base_address)
5870 unsigned char *next = start;
5874 unsigned long off = offset + (start - next);
5875 enum dwarf_range_list_entry rlet;
5876 dwarf_vma begin, length, end;
5877 unsigned int bytes_read;
5879 if (start + 1 > finish)
5881 warn (_("Range list starting at offset 0x%lx is not terminated.\n"),
5886 printf (" %8.8lx ", off);
5888 SAFE_BYTE_GET_AND_INC (rlet, start, 1, finish);
5892 case DW_RLE_end_of_list:
5893 printf (_("<End of list>\n"));
5895 case DW_RLE_base_address:
5896 SAFE_BYTE_GET_AND_INC (base_address, start, pointer_size, finish);
5897 print_dwarf_vma (base_address, pointer_size);
5898 printf (_("(base address)\n"));
5900 case DW_RLE_start_length:
5901 SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, finish);
5902 length = read_uleb128 (start, &bytes_read, finish);
5903 start += bytes_read;
5904 end = begin + length;
5906 case DW_RLE_offset_pair:
5907 begin = read_uleb128 (start, &bytes_read, finish);
5908 start += bytes_read;
5909 end = read_uleb128 (start, &bytes_read, finish);
5910 start += bytes_read;
5912 case DW_RLE_start_end:
5913 SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, finish);
5914 SAFE_BYTE_GET_AND_INC (end, start, pointer_size, finish);
5917 error (_("Invalid range list entry type %d\n"), rlet);
5918 rlet = DW_RLE_end_of_list;
5921 if (rlet == DW_RLE_end_of_list)
5923 if (rlet == DW_RLE_base_address)
5926 print_dwarf_vma (begin + base_address, pointer_size);
5927 print_dwarf_vma (end + base_address, pointer_size);
5930 fputs (_("(start == end)"), stdout);
5931 else if (begin > end)
5932 fputs (_("(start > end)"), stdout);
5939 display_debug_ranges (struct dwarf_section *section,
5940 void *file ATTRIBUTE_UNUSED)
5942 unsigned char *start = section->start;
5943 unsigned char *last_start = start;
5944 unsigned long bytes = section->size;
5945 unsigned char *section_begin = start;
5946 unsigned char *finish = start + bytes;
5947 unsigned int num_range_list, i;
5948 struct range_entry *range_entries, *range_entry_fill;
5949 int is_rnglists = strstr (section->name, "debug_rnglists") != NULL;
5950 /* Initialize it due to a false compiler warning. */
5951 unsigned char address_size = 0;
5955 printf (_("\nThe %s section is empty.\n"), section->name);
5961 dwarf_vma initial_length;
5962 unsigned int initial_length_size;
5963 unsigned char segment_selector_size;
5964 unsigned int offset_size, offset_entry_count;
5965 unsigned short version;
5967 /* Get and check the length of the block. */
5968 SAFE_BYTE_GET_AND_INC (initial_length, start, 4, finish);
5970 if (initial_length == 0xffffffff)
5972 /* This section is 64-bit DWARF 3. */
5973 SAFE_BYTE_GET_AND_INC (initial_length, start, 8, finish);
5975 initial_length_size = 12;
5980 initial_length_size = 4;
5983 if (initial_length + initial_length_size > section->size)
5985 /* If the length field has a relocation against it, then we should
5986 not complain if it is inaccurate (and probably negative).
5987 It is copied from .debug_line handling code. */
5988 if (reloc_at (section, (start - section->start) - offset_size))
5990 initial_length = (finish - start) - initial_length_size;
5994 warn (_("The length field (0x%lx) in the debug_rnglists header is wrong - the section is too small\n"),
5995 (long) initial_length);
6000 /* Get and check the version number. */
6001 SAFE_BYTE_GET_AND_INC (version, start, 2, finish);
6005 warn (_("Only DWARF version 5 debug_rnglists info "
6006 "is currently supported.\n"));
6010 SAFE_BYTE_GET_AND_INC (address_size, start, 1, finish);
6012 SAFE_BYTE_GET_AND_INC (segment_selector_size, start, 1, finish);
6013 if (segment_selector_size != 0)
6015 warn (_("The %s section contains "
6016 "unsupported segment selector size: %d.\n"),
6017 section->name, segment_selector_size);
6021 SAFE_BYTE_GET_AND_INC (offset_entry_count, start, 4, finish);
6022 if (offset_entry_count != 0)
6024 warn (_("The %s section contains "
6025 "unsupported offset entry count: %u.\n"),
6026 section->name, offset_entry_count);
6031 if (load_debug_info (file) == 0)
6033 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
6039 for (i = 0; i < num_debug_info_entries; i++)
6040 num_range_list += debug_information [i].num_range_lists;
6042 if (num_range_list == 0)
6044 /* This can happen when the file was compiled with -gsplit-debug
6045 which removes references to range lists from the primary .o file. */
6046 printf (_("No range lists in .debug_info section.\n"));
6050 range_entries = (struct range_entry *)
6051 xmalloc (sizeof (*range_entries) * num_range_list);
6052 range_entry_fill = range_entries;
6054 for (i = 0; i < num_debug_info_entries; i++)
6056 debug_info *debug_info_p = &debug_information[i];
6059 for (j = 0; j < debug_info_p->num_range_lists; j++)
6061 range_entry_fill->ranges_offset = debug_info_p->range_lists[j];
6062 range_entry_fill->debug_info_p = debug_info_p;
6067 qsort (range_entries, num_range_list, sizeof (*range_entries),
6068 range_entry_compar);
6070 if (dwarf_check != 0 && range_entries[0].ranges_offset != 0)
6071 warn (_("Range lists in %s section start at 0x%lx\n"),
6072 section->name, (unsigned long) range_entries[0].ranges_offset);
6074 printf (_("Contents of the %s section:\n\n"), section->name);
6075 printf (_(" Offset Begin End\n"));
6077 for (i = 0; i < num_range_list; i++)
6079 struct range_entry *range_entry = &range_entries[i];
6080 debug_info *debug_info_p = range_entry->debug_info_p;
6081 unsigned int pointer_size;
6083 unsigned char *next;
6084 dwarf_vma base_address;
6086 pointer_size = (is_rnglists ? address_size : debug_info_p->pointer_size);
6087 offset = range_entry->ranges_offset;
6088 next = section_begin + offset;
6089 base_address = debug_info_p->base_address;
6091 /* PR 17512: file: 001-101485-0.001:0.1. */
6092 if (pointer_size < 2 || pointer_size > 8)
6094 warn (_("Corrupt pointer size (%d) in debug entry at offset %8.8lx\n"),
6095 pointer_size, (unsigned long) offset);
6099 if (dwarf_check != 0 && i > 0)
6102 warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
6103 (unsigned long) (start - section_begin),
6104 (unsigned long) (next - section_begin), section->name);
6105 else if (start > next)
6107 if (next == last_start)
6109 warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
6110 (unsigned long) (start - section_begin),
6111 (unsigned long) (next - section_begin), section->name);
6117 (is_rnglists ? display_debug_rnglists_list : display_debug_ranges_list)
6118 (start, finish, pointer_size, offset, base_address);
6122 free (range_entries);
6127 typedef struct Frame_Chunk
6129 struct Frame_Chunk *next;
6130 unsigned char *chunk_start;
6132 /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */
6133 short int *col_type;
6136 unsigned int code_factor;
6141 dwarf_vma cfa_offset;
6143 unsigned char fde_encoding;
6144 unsigned char cfa_exp;
6145 unsigned char ptr_size;
6146 unsigned char segment_size;
6150 static const char *const *dwarf_regnames;
6151 static unsigned int dwarf_regnames_count;
6153 /* A marker for a col_type that means this column was never referenced
6154 in the frame info. */
6155 #define DW_CFA_unreferenced (-1)
6157 /* Return 0 if no more space is needed, 1 if more space is needed,
6158 -1 for invalid reg. */
6161 frame_need_space (Frame_Chunk *fc, unsigned int reg)
6163 unsigned int prev = fc->ncols;
6165 if (reg < (unsigned int) fc->ncols)
6168 if (dwarf_regnames_count
6169 && reg > dwarf_regnames_count)
6172 fc->ncols = reg + 1;
6173 /* PR 17512: file: 10450-2643-0.004.
6174 If reg == -1 then this can happen... */
6178 /* PR 17512: file: 2844a11d. */
6179 if (fc->ncols > 1024)
6181 error (_("Unfeasibly large register number: %u\n"), reg);
6183 /* FIXME: 1024 is an arbitrary limit. Increase it if
6184 we ever encounter a valid binary that exceeds it. */
6188 fc->col_type = (short int *) xcrealloc (fc->col_type, fc->ncols,
6189 sizeof (short int));
6190 fc->col_offset = (int *) xcrealloc (fc->col_offset, fc->ncols, sizeof (int));
6191 /* PR 17512: file:002-10025-0.005. */
6192 if (fc->col_type == NULL || fc->col_offset == NULL)
6194 error (_("Out of memory allocating %u columns in dwarf frame arrays\n"),
6200 while (prev < fc->ncols)
6202 fc->col_type[prev] = DW_CFA_unreferenced;
6203 fc->col_offset[prev] = 0;
6209 static const char *const dwarf_regnames_i386[] =
6211 "eax", "ecx", "edx", "ebx", /* 0 - 3 */
6212 "esp", "ebp", "esi", "edi", /* 4 - 7 */
6213 "eip", "eflags", NULL, /* 8 - 10 */
6214 "st0", "st1", "st2", "st3", /* 11 - 14 */
6215 "st4", "st5", "st6", "st7", /* 15 - 18 */
6216 NULL, NULL, /* 19 - 20 */
6217 "xmm0", "xmm1", "xmm2", "xmm3", /* 21 - 24 */
6218 "xmm4", "xmm5", "xmm6", "xmm7", /* 25 - 28 */
6219 "mm0", "mm1", "mm2", "mm3", /* 29 - 32 */
6220 "mm4", "mm5", "mm6", "mm7", /* 33 - 36 */
6221 "fcw", "fsw", "mxcsr", /* 37 - 39 */
6222 "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, /* 40 - 47 */
6223 "tr", "ldtr", /* 48 - 49 */
6224 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 50 - 57 */
6225 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 58 - 65 */
6226 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 66 - 73 */
6227 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 74 - 81 */
6228 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 82 - 89 */
6229 NULL, NULL, NULL, /* 90 - 92 */
6230 "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" /* 93 - 100 */
6233 static const char *const dwarf_regnames_iamcu[] =
6235 "eax", "ecx", "edx", "ebx", /* 0 - 3 */
6236 "esp", "ebp", "esi", "edi", /* 4 - 7 */
6237 "eip", "eflags", NULL, /* 8 - 10 */
6238 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 11 - 18 */
6239 NULL, NULL, /* 19 - 20 */
6240 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 21 - 28 */
6241 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 29 - 36 */
6242 NULL, NULL, NULL, /* 37 - 39 */
6243 "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, /* 40 - 47 */
6244 "tr", "ldtr", /* 48 - 49 */
6245 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 50 - 57 */
6246 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 58 - 65 */
6247 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 66 - 73 */
6248 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 74 - 81 */
6249 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 82 - 89 */
6250 NULL, NULL, NULL, /* 90 - 92 */
6251 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL /* 93 - 100 */
6255 init_dwarf_regnames_i386 (void)
6257 dwarf_regnames = dwarf_regnames_i386;
6258 dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386);
6262 init_dwarf_regnames_iamcu (void)
6264 dwarf_regnames = dwarf_regnames_iamcu;
6265 dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_iamcu);
6268 static const char *const dwarf_regnames_x86_64[] =
6270 "rax", "rdx", "rcx", "rbx",
6271 "rsi", "rdi", "rbp", "rsp",
6272 "r8", "r9", "r10", "r11",
6273 "r12", "r13", "r14", "r15",
6275 "xmm0", "xmm1", "xmm2", "xmm3",
6276 "xmm4", "xmm5", "xmm6", "xmm7",
6277 "xmm8", "xmm9", "xmm10", "xmm11",
6278 "xmm12", "xmm13", "xmm14", "xmm15",
6279 "st0", "st1", "st2", "st3",
6280 "st4", "st5", "st6", "st7",
6281 "mm0", "mm1", "mm2", "mm3",
6282 "mm4", "mm5", "mm6", "mm7",
6284 "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL,
6285 "fs.base", "gs.base", NULL, NULL,
6287 "mxcsr", "fcw", "fsw",
6288 "xmm16", "xmm17", "xmm18", "xmm19",
6289 "xmm20", "xmm21", "xmm22", "xmm23",
6290 "xmm24", "xmm25", "xmm26", "xmm27",
6291 "xmm28", "xmm29", "xmm30", "xmm31",
6292 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 83 - 90 */
6293 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 91 - 98 */
6294 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 99 - 106 */
6295 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 107 - 114 */
6296 NULL, NULL, NULL, /* 115 - 117 */
6297 "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7"
6301 init_dwarf_regnames_x86_64 (void)
6303 dwarf_regnames = dwarf_regnames_x86_64;
6304 dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64);
6307 static const char *const dwarf_regnames_aarch64[] =
6309 "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7",
6310 "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15",
6311 "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23",
6312 "x24", "x25", "x26", "x27", "x28", "x29", "x30", "sp",
6313 NULL, "elr", NULL, NULL, NULL, NULL, NULL, NULL,
6314 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
6315 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
6316 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
6317 "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7",
6318 "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15",
6319 "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23",
6320 "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31",
6324 init_dwarf_regnames_aarch64 (void)
6326 dwarf_regnames = dwarf_regnames_aarch64;
6327 dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_aarch64);
6330 static const char *const dwarf_regnames_s390[] =
6332 /* Avoid saying "r5 (r5)", so omit the names of r0-r15. */
6333 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
6334 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
6335 "f0", "f2", "f4", "f6", "f1", "f3", "f5", "f7",
6336 "f8", "f10", "f12", "f14", "f9", "f11", "f13", "f15",
6337 "cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7",
6338 "cr8", "cr9", "cr10", "cr11", "cr12", "cr13", "cr14", "cr15",
6339 "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7",
6340 "a8", "a9", "a10", "a11", "a12", "a13", "a14", "a15",
6343 "v16", "v18", "v20", "v22", "v17", "v19", "v21", "v23",
6344 "v24", "v26", "v28", "v30", "v25", "v27", "v29", "v31",
6348 init_dwarf_regnames_s390 (void)
6350 dwarf_regnames = dwarf_regnames_s390;
6351 dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_s390);
6355 init_dwarf_regnames (unsigned int e_machine)
6360 init_dwarf_regnames_i386 ();
6364 init_dwarf_regnames_iamcu ();
6370 init_dwarf_regnames_x86_64 ();
6374 init_dwarf_regnames_aarch64 ();
6378 init_dwarf_regnames_s390 ();
6387 regname (unsigned int regno, int row)
6389 static char reg[64];
6391 && regno < dwarf_regnames_count
6392 && dwarf_regnames [regno] != NULL)
6395 return dwarf_regnames [regno];
6396 snprintf (reg, sizeof (reg), "r%d (%s)", regno,
6397 dwarf_regnames [regno]);
6400 snprintf (reg, sizeof (reg), "r%d", regno);
6405 frame_display_row (Frame_Chunk *fc, int *need_col_headers, unsigned int *max_regs)
6410 if (*max_regs != fc->ncols)
6411 *max_regs = fc->ncols;
6413 if (*need_col_headers)
6415 static const char *sloc = " LOC";
6417 *need_col_headers = 0;
6419 printf ("%-*s CFA ", eh_addr_size * 2, sloc);
6421 for (r = 0; r < *max_regs; r++)
6422 if (fc->col_type[r] != DW_CFA_unreferenced)
6427 printf ("%-5s ", regname (r, 1));
6433 print_dwarf_vma (fc->pc_begin, eh_addr_size);
6435 strcpy (tmp, "exp");
6437 sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), (int) fc->cfa_offset);
6438 printf ("%-8s ", tmp);
6440 for (r = 0; r < fc->ncols; r++)
6442 if (fc->col_type[r] != DW_CFA_unreferenced)
6444 switch (fc->col_type[r])
6446 case DW_CFA_undefined:
6449 case DW_CFA_same_value:
6453 sprintf (tmp, "c%+d", fc->col_offset[r]);
6455 case DW_CFA_val_offset:
6456 sprintf (tmp, "v%+d", fc->col_offset[r]);
6458 case DW_CFA_register:
6459 sprintf (tmp, "%s", regname (fc->col_offset[r], 0));
6461 case DW_CFA_expression:
6462 strcpy (tmp, "exp");
6464 case DW_CFA_val_expression:
6465 strcpy (tmp, "vexp");
6468 strcpy (tmp, "n/a");
6471 printf ("%-5s ", tmp);
6477 #define GET(VAR, N) SAFE_BYTE_GET_AND_INC (VAR, start, N, end)
6478 #define LEB() read_uleb128 (start, & length_return, end); start += length_return
6479 #define SLEB() read_sleb128 (start, & length_return, end); start += length_return
6481 static unsigned char *
6482 read_cie (unsigned char *start, unsigned char *end,
6483 Frame_Chunk **p_cie, int *p_version,
6484 unsigned long *p_aug_len, unsigned char **p_aug)
6488 unsigned int length_return;
6489 unsigned char *augmentation_data = NULL;
6490 unsigned long augmentation_data_len = 0;
6493 /* PR 17512: file: 001-228113-0.004. */
6497 fc = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk));
6498 memset (fc, 0, sizeof (Frame_Chunk));
6500 fc->col_type = (short int *) xmalloc (sizeof (short int));
6501 fc->col_offset = (int *) xmalloc (sizeof (int));
6505 fc->augmentation = (char *) start;
6506 /* PR 17512: file: 001-228113-0.004.
6507 Skip past augmentation name, but avoid running off the end of the data. */
6509 if (* start ++ == '\0')
6513 warn (_("No terminator for augmentation name\n"));
6517 if (strcmp (fc->augmentation, "eh") == 0)
6518 start += eh_addr_size;
6522 GET (fc->ptr_size, 1);
6523 if (fc->ptr_size < 1 || fc->ptr_size > 8)
6525 warn (_("Invalid pointer size (%d) in CIE data\n"), fc->ptr_size);
6529 GET (fc->segment_size, 1);
6530 /* PR 17512: file: e99d2804. */
6531 if (fc->segment_size > 8 || fc->segment_size + fc->ptr_size > 8)
6533 warn (_("Invalid segment size (%d) in CIE data\n"), fc->segment_size);
6537 eh_addr_size = fc->ptr_size;
6541 fc->ptr_size = eh_addr_size;
6542 fc->segment_size = 0;
6544 fc->code_factor = LEB ();
6545 fc->data_factor = SLEB ();
6555 if (fc->augmentation[0] == 'z')
6557 augmentation_data_len = LEB ();
6558 augmentation_data = start;
6559 start += augmentation_data_len;
6560 /* PR 17512: file: 11042-2589-0.004. */
6563 warn (_("Augmentation data too long: 0x%lx\n"), augmentation_data_len);
6568 if (augmentation_data_len)
6572 unsigned char *qend;
6574 p = (unsigned char *) fc->augmentation + 1;
6575 q = augmentation_data;
6576 qend = q + augmentation_data_len;
6578 /* PR 17531: file: 015adfaa. */
6581 warn (_("Negative augmentation data length: 0x%lx"), augmentation_data_len);
6582 augmentation_data_len = 0;
6585 while (p < end && q < augmentation_data + augmentation_data_len)
6590 q += 1 + size_of_encoded_value (*q);
6592 fc->fde_encoding = *q++;
6599 /* Note - it is OK if this loop terminates with q < qend.
6600 Padding may have been inserted to align the end of the CIE. */
6605 *p_version = version;
6608 *p_aug_len = augmentation_data_len;
6609 *p_aug = augmentation_data;
6615 display_debug_frames (struct dwarf_section *section,
6616 void *file ATTRIBUTE_UNUSED)
6618 unsigned char *start = section->start;
6619 unsigned char *end = start + section->size;
6620 unsigned char *section_start = start;
6621 Frame_Chunk *chunks = 0, *forward_refs = 0;
6622 Frame_Chunk *remembered_state = 0;
6624 int is_eh = strcmp (section->name, ".eh_frame") == 0;
6625 unsigned int length_return;
6626 unsigned int max_regs = 0;
6627 const char *bad_reg = _("bad register: ");
6628 unsigned int saved_eh_addr_size = eh_addr_size;
6630 printf (_("Contents of the %s section:\n"), section->name);
6634 unsigned char *saved_start;
6635 unsigned char *block_end;
6640 int need_col_headers = 1;
6641 unsigned char *augmentation_data = NULL;
6642 unsigned long augmentation_data_len = 0;
6643 unsigned int encoded_ptr_size = saved_eh_addr_size;
6644 unsigned int offset_size;
6645 unsigned int initial_length_size;
6646 bfd_boolean all_nops;
6648 saved_start = start;
6650 SAFE_BYTE_GET_AND_INC (length, start, 4, end);
6654 printf ("\n%08lx ZERO terminator\n\n",
6655 (unsigned long)(saved_start - section_start));
6656 /* Skip any zero terminators that directly follow.
6657 A corrupt section size could have loaded a whole
6658 slew of zero filled memory bytes. eg
6659 PR 17512: file: 070-19381-0.004. */
6660 while (start < end && * start == 0)
6665 if (length == 0xffffffff)
6667 SAFE_BYTE_GET_AND_INC (length, start, 8, end);
6669 initial_length_size = 12;
6674 initial_length_size = 4;
6677 block_end = saved_start + length + initial_length_size;
6678 if (block_end > end || block_end < start)
6680 warn ("Invalid length 0x%s in FDE at %#08lx\n",
6681 dwarf_vmatoa_1 (NULL, length, offset_size),
6682 (unsigned long) (saved_start - section_start));
6686 SAFE_BYTE_GET_AND_INC (cie_id, start, offset_size, end);
6688 if (is_eh ? (cie_id == 0) : ((offset_size == 4 && cie_id == DW_CIE_ID)
6689 || (offset_size == 8 && cie_id == DW64_CIE_ID)))
6694 start = read_cie (start, end, &cie, &version,
6695 &augmentation_data_len, &augmentation_data);
6696 /* PR 17512: file: 027-135133-0.005. */
6703 fc->chunk_start = saved_start;
6704 mreg = max_regs > 0 ? max_regs - 1 : 0;
6707 if (frame_need_space (fc, mreg) < 0)
6709 if (fc->fde_encoding)
6710 encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
6712 printf ("\n%08lx ", (unsigned long) (saved_start - section_start));
6713 print_dwarf_vma (length, fc->ptr_size);
6714 print_dwarf_vma (cie_id, offset_size);
6716 if (do_debug_frames_interp)
6718 printf ("CIE \"%s\" cf=%d df=%d ra=%d\n", fc->augmentation,
6719 fc->code_factor, fc->data_factor, fc->ra);
6724 printf (" Version: %d\n", version);
6725 printf (" Augmentation: \"%s\"\n", fc->augmentation);
6728 printf (" Pointer Size: %u\n", fc->ptr_size);
6729 printf (" Segment Size: %u\n", fc->segment_size);
6731 printf (" Code alignment factor: %u\n", fc->code_factor);
6732 printf (" Data alignment factor: %d\n", fc->data_factor);
6733 printf (" Return address column: %d\n", fc->ra);
6735 if (augmentation_data_len)
6739 printf (" Augmentation data: ");
6740 for (i = 0; i < augmentation_data_len; ++i)
6741 /* FIXME: If do_wide is FALSE, then we should
6742 add carriage returns at 80 columns... */
6743 printf (" %02x", augmentation_data[i]);
6751 unsigned char *look_for;
6752 static Frame_Chunk fde_fc;
6753 unsigned long segment_selector;
6757 dwarf_vma sign = (dwarf_vma) 1 << (offset_size * 8 - 1);
6758 look_for = start - 4 - ((cie_id ^ sign) - sign);
6761 look_for = section_start + cie_id;
6763 if (look_for <= saved_start)
6765 for (cie = chunks; cie ; cie = cie->next)
6766 if (cie->chunk_start == look_for)
6771 for (cie = forward_refs; cie ; cie = cie->next)
6772 if (cie->chunk_start == look_for)
6776 unsigned int off_size;
6777 unsigned char *cie_scan;
6779 cie_scan = look_for;
6781 SAFE_BYTE_GET_AND_INC (length, cie_scan, 4, end);
6782 if (length == 0xffffffff)
6784 SAFE_BYTE_GET_AND_INC (length, cie_scan, 8, end);
6791 SAFE_BYTE_GET_AND_INC (c_id, cie_scan, off_size, end);
6794 : ((off_size == 4 && c_id == DW_CIE_ID)
6795 || (off_size == 8 && c_id == DW64_CIE_ID)))
6800 read_cie (cie_scan, end, &cie, &version,
6801 &augmentation_data_len, &augmentation_data);
6802 /* PR 17512: file: 3450-2098-0.004. */
6805 warn (_("Failed to read CIE information\n"));
6808 cie->next = forward_refs;
6810 cie->chunk_start = look_for;
6811 mreg = max_regs > 0 ? max_regs - 1 : 0;
6814 if (frame_need_space (cie, mreg) < 0)
6816 warn (_("Invalid max register\n"));
6819 if (cie->fde_encoding)
6821 = size_of_encoded_value (cie->fde_encoding);
6828 memset (fc, 0, sizeof (Frame_Chunk));
6832 warn ("Invalid CIE pointer 0x%s in FDE at %#08lx\n",
6833 dwarf_vmatoa_1 (NULL, cie_id, offset_size),
6834 (unsigned long) (saved_start - section_start));
6836 fc->col_type = (short int *) xmalloc (sizeof (short int));
6837 fc->col_offset = (int *) xmalloc (sizeof (int));
6838 if (frame_need_space (fc, max_regs > 0 ? max_regs - 1 : 0) < 0)
6840 warn (_("Invalid max register\n"));
6844 fc->augmentation = "";
6845 fc->fde_encoding = 0;
6846 fc->ptr_size = eh_addr_size;
6847 fc->segment_size = 0;
6851 fc->ncols = cie->ncols;
6852 fc->col_type = (short int *) xcmalloc (fc->ncols, sizeof (short int));
6853 fc->col_offset = (int *) xcmalloc (fc->ncols, sizeof (int));
6854 memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int));
6855 memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int));
6856 fc->augmentation = cie->augmentation;
6857 fc->ptr_size = cie->ptr_size;
6858 eh_addr_size = cie->ptr_size;
6859 fc->segment_size = cie->segment_size;
6860 fc->code_factor = cie->code_factor;
6861 fc->data_factor = cie->data_factor;
6862 fc->cfa_reg = cie->cfa_reg;
6863 fc->cfa_offset = cie->cfa_offset;
6865 if (frame_need_space (fc, max_regs > 0 ? max_regs - 1: 0) < 0)
6867 warn (_("Invalid max register\n"));
6870 fc->fde_encoding = cie->fde_encoding;
6873 if (fc->fde_encoding)
6874 encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
6876 segment_selector = 0;
6877 if (fc->segment_size)
6879 if (fc->segment_size > sizeof (segment_selector))
6881 /* PR 17512: file: 9e196b3e. */
6882 warn (_("Probably corrupt segment size: %d - using 4 instead\n"), fc->segment_size);
6883 fc->segment_size = 4;
6885 SAFE_BYTE_GET_AND_INC (segment_selector, start, fc->segment_size, end);
6888 fc->pc_begin = get_encoded_value (&start, fc->fde_encoding, section, end);
6890 /* FIXME: It appears that sometimes the final pc_range value is
6891 encoded in less than encoded_ptr_size bytes. See the x86_64
6892 run of the "objcopy on compressed debug sections" test for an
6894 SAFE_BYTE_GET_AND_INC (fc->pc_range, start, encoded_ptr_size, end);
6896 if (cie->augmentation[0] == 'z')
6898 augmentation_data_len = LEB ();
6899 augmentation_data = start;
6900 start += augmentation_data_len;
6901 /* PR 17512: file: 722-8446-0.004. */
6902 if (start >= end || ((signed long) augmentation_data_len) < 0)
6904 warn (_("Corrupt augmentation data length: %lx\n"),
6905 augmentation_data_len);
6907 augmentation_data = NULL;
6908 augmentation_data_len = 0;
6912 printf ("\n%08lx %s %s FDE cie=%08lx pc=",
6913 (unsigned long)(saved_start - section_start),
6914 dwarf_vmatoa_1 (NULL, length, fc->ptr_size),
6915 dwarf_vmatoa_1 (NULL, cie_id, offset_size),
6916 (unsigned long)(cie->chunk_start - section_start));
6918 if (fc->segment_size)
6919 printf ("%04lx:", segment_selector);
6922 dwarf_vmatoa_1 (NULL, fc->pc_begin, fc->ptr_size),
6923 dwarf_vmatoa_1 (NULL, fc->pc_begin + fc->pc_range, fc->ptr_size));
6925 if (! do_debug_frames_interp && augmentation_data_len)
6929 printf (" Augmentation data: ");
6930 for (i = 0; i < augmentation_data_len; ++i)
6931 printf (" %02x", augmentation_data[i]);
6937 /* At this point, fc is the current chunk, cie (if any) is set, and
6938 we're about to interpret instructions for the chunk. */
6939 /* ??? At present we need to do this always, since this sizes the
6940 fc->col_type and fc->col_offset arrays, which we write into always.
6941 We should probably split the interpreted and non-interpreted bits
6942 into two different routines, since there's so much that doesn't
6943 really overlap between them. */
6944 if (1 || do_debug_frames_interp)
6946 /* Start by making a pass over the chunk, allocating storage
6947 and taking note of what registers are used. */
6948 unsigned char *tmp = start;
6950 while (start < block_end)
6952 unsigned int reg, op, opa;
6954 unsigned char * new_start;
6961 /* Warning: if you add any more cases to this switch, be
6962 sure to add them to the corresponding switch below. */
6965 case DW_CFA_advance_loc:
6969 if (frame_need_space (fc, opa) >= 0)
6970 fc->col_type[opa] = DW_CFA_undefined;
6972 case DW_CFA_restore:
6973 if (frame_need_space (fc, opa) >= 0)
6974 fc->col_type[opa] = DW_CFA_undefined;
6976 case DW_CFA_set_loc:
6977 start += encoded_ptr_size;
6979 case DW_CFA_advance_loc1:
6982 case DW_CFA_advance_loc2:
6985 case DW_CFA_advance_loc4:
6988 case DW_CFA_offset_extended:
6989 case DW_CFA_val_offset:
6990 reg = LEB (); LEB ();
6991 if (frame_need_space (fc, reg) >= 0)
6992 fc->col_type[reg] = DW_CFA_undefined;
6994 case DW_CFA_restore_extended:
6996 if (frame_need_space (fc, reg) >= 0)
6997 fc->col_type[reg] = DW_CFA_undefined;
6999 case DW_CFA_undefined:
7001 if (frame_need_space (fc, reg) >= 0)
7002 fc->col_type[reg] = DW_CFA_undefined;
7004 case DW_CFA_same_value:
7006 if (frame_need_space (fc, reg) >= 0)
7007 fc->col_type[reg] = DW_CFA_undefined;
7009 case DW_CFA_register:
7010 reg = LEB (); LEB ();
7011 if (frame_need_space (fc, reg) >= 0)
7012 fc->col_type[reg] = DW_CFA_undefined;
7014 case DW_CFA_def_cfa:
7017 case DW_CFA_def_cfa_register:
7020 case DW_CFA_def_cfa_offset:
7023 case DW_CFA_def_cfa_expression:
7025 new_start = start + temp;
7026 if (new_start < start)
7028 warn (_("Corrupt CFA_def expression value: %lu\n"), temp);
7034 case DW_CFA_expression:
7035 case DW_CFA_val_expression:
7038 new_start = start + temp;
7039 if (new_start < start)
7041 /* PR 17512: file:306-192417-0.005. */
7042 warn (_("Corrupt CFA expression value: %lu\n"), temp);
7047 if (frame_need_space (fc, reg) >= 0)
7048 fc->col_type[reg] = DW_CFA_undefined;
7050 case DW_CFA_offset_extended_sf:
7051 case DW_CFA_val_offset_sf:
7052 reg = LEB (); SLEB ();
7053 if (frame_need_space (fc, reg) >= 0)
7054 fc->col_type[reg] = DW_CFA_undefined;
7056 case DW_CFA_def_cfa_sf:
7059 case DW_CFA_def_cfa_offset_sf:
7062 case DW_CFA_MIPS_advance_loc8:
7065 case DW_CFA_GNU_args_size:
7068 case DW_CFA_GNU_negative_offset_extended:
7069 reg = LEB (); LEB ();
7070 if (frame_need_space (fc, reg) >= 0)
7071 fc->col_type[reg] = DW_CFA_undefined;
7082 /* Now we know what registers are used, make a second pass over
7083 the chunk, this time actually printing out the info. */
7085 while (start < block_end)
7087 unsigned char * tmp;
7089 unsigned long ul, reg, roffs;
7093 const char *reg_prefix = "";
7100 /* Make a note if something other than DW_CFA_nop happens. */
7101 if (op != DW_CFA_nop)
7104 /* Warning: if you add any more cases to this switch, be
7105 sure to add them to the corresponding switch above. */
7108 case DW_CFA_advance_loc:
7109 if (do_debug_frames_interp)
7110 frame_display_row (fc, &need_col_headers, &max_regs);
7112 printf (" DW_CFA_advance_loc: %d to %s\n",
7113 opa * fc->code_factor,
7114 dwarf_vmatoa_1 (NULL,
7115 fc->pc_begin + opa * fc->code_factor,
7117 fc->pc_begin += opa * fc->code_factor;
7122 if (opa >= (unsigned int) fc->ncols)
7123 reg_prefix = bad_reg;
7124 if (! do_debug_frames_interp || *reg_prefix != '\0')
7125 printf (" DW_CFA_offset: %s%s at cfa%+ld\n",
7126 reg_prefix, regname (opa, 0),
7127 roffs * fc->data_factor);
7128 if (*reg_prefix == '\0')
7130 fc->col_type[opa] = DW_CFA_offset;
7131 fc->col_offset[opa] = roffs * fc->data_factor;
7135 case DW_CFA_restore:
7136 if (opa >= (unsigned int) fc->ncols)
7137 reg_prefix = bad_reg;
7138 if (! do_debug_frames_interp || *reg_prefix != '\0')
7139 printf (" DW_CFA_restore: %s%s\n",
7140 reg_prefix, regname (opa, 0));
7141 if (*reg_prefix != '\0')
7144 if (opa >= (unsigned int) cie->ncols
7145 || (do_debug_frames_interp
7146 && cie->col_type[opa] == DW_CFA_unreferenced))
7148 fc->col_type[opa] = DW_CFA_undefined;
7149 fc->col_offset[opa] = 0;
7153 fc->col_type[opa] = cie->col_type[opa];
7154 fc->col_offset[opa] = cie->col_offset[opa];
7158 case DW_CFA_set_loc:
7159 vma = get_encoded_value (&start, fc->fde_encoding, section, block_end);
7160 if (do_debug_frames_interp)
7161 frame_display_row (fc, &need_col_headers, &max_regs);
7163 printf (" DW_CFA_set_loc: %s\n",
7164 dwarf_vmatoa_1 (NULL, vma, fc->ptr_size));
7168 case DW_CFA_advance_loc1:
7169 SAFE_BYTE_GET_AND_INC (ofs, start, 1, end);
7170 if (do_debug_frames_interp)
7171 frame_display_row (fc, &need_col_headers, &max_regs);
7173 printf (" DW_CFA_advance_loc1: %ld to %s\n",
7174 (unsigned long) (ofs * fc->code_factor),
7175 dwarf_vmatoa_1 (NULL,
7176 fc->pc_begin + ofs * fc->code_factor,
7178 fc->pc_begin += ofs * fc->code_factor;
7181 case DW_CFA_advance_loc2:
7182 SAFE_BYTE_GET_AND_INC (ofs, start, 2, block_end);
7183 if (do_debug_frames_interp)
7184 frame_display_row (fc, &need_col_headers, &max_regs);
7186 printf (" DW_CFA_advance_loc2: %ld to %s\n",
7187 (unsigned long) (ofs * fc->code_factor),
7188 dwarf_vmatoa_1 (NULL,
7189 fc->pc_begin + ofs * fc->code_factor,
7191 fc->pc_begin += ofs * fc->code_factor;
7194 case DW_CFA_advance_loc4:
7195 SAFE_BYTE_GET_AND_INC (ofs, start, 4, block_end);
7196 if (do_debug_frames_interp)
7197 frame_display_row (fc, &need_col_headers, &max_regs);
7199 printf (" DW_CFA_advance_loc4: %ld to %s\n",
7200 (unsigned long) (ofs * fc->code_factor),
7201 dwarf_vmatoa_1 (NULL,
7202 fc->pc_begin + ofs * fc->code_factor,
7204 fc->pc_begin += ofs * fc->code_factor;
7207 case DW_CFA_offset_extended:
7210 if (reg >= (unsigned int) fc->ncols)
7211 reg_prefix = bad_reg;
7212 if (! do_debug_frames_interp || *reg_prefix != '\0')
7213 printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n",
7214 reg_prefix, regname (reg, 0),
7215 roffs * fc->data_factor);
7216 if (*reg_prefix == '\0')
7218 fc->col_type[reg] = DW_CFA_offset;
7219 fc->col_offset[reg] = roffs * fc->data_factor;
7223 case DW_CFA_val_offset:
7226 if (reg >= (unsigned int) fc->ncols)
7227 reg_prefix = bad_reg;
7228 if (! do_debug_frames_interp || *reg_prefix != '\0')
7229 printf (" DW_CFA_val_offset: %s%s is cfa%+ld\n",
7230 reg_prefix, regname (reg, 0),
7231 roffs * fc->data_factor);
7232 if (*reg_prefix == '\0')
7234 fc->col_type[reg] = DW_CFA_val_offset;
7235 fc->col_offset[reg] = roffs * fc->data_factor;
7239 case DW_CFA_restore_extended:
7241 if (reg >= (unsigned int) fc->ncols)
7242 reg_prefix = bad_reg;
7243 if (! do_debug_frames_interp || *reg_prefix != '\0')
7244 printf (" DW_CFA_restore_extended: %s%s\n",
7245 reg_prefix, regname (reg, 0));
7246 if (*reg_prefix != '\0')
7249 if (reg >= (unsigned int) cie->ncols)
7251 fc->col_type[reg] = DW_CFA_undefined;
7252 fc->col_offset[reg] = 0;
7256 fc->col_type[reg] = cie->col_type[reg];
7257 fc->col_offset[reg] = cie->col_offset[reg];
7261 case DW_CFA_undefined:
7263 if (reg >= (unsigned int) fc->ncols)
7264 reg_prefix = bad_reg;
7265 if (! do_debug_frames_interp || *reg_prefix != '\0')
7266 printf (" DW_CFA_undefined: %s%s\n",
7267 reg_prefix, regname (reg, 0));
7268 if (*reg_prefix == '\0')
7270 fc->col_type[reg] = DW_CFA_undefined;
7271 fc->col_offset[reg] = 0;
7275 case DW_CFA_same_value:
7277 if (reg >= (unsigned int) fc->ncols)
7278 reg_prefix = bad_reg;
7279 if (! do_debug_frames_interp || *reg_prefix != '\0')
7280 printf (" DW_CFA_same_value: %s%s\n",
7281 reg_prefix, regname (reg, 0));
7282 if (*reg_prefix == '\0')
7284 fc->col_type[reg] = DW_CFA_same_value;
7285 fc->col_offset[reg] = 0;
7289 case DW_CFA_register:
7292 if (reg >= (unsigned int) fc->ncols)
7293 reg_prefix = bad_reg;
7294 if (! do_debug_frames_interp || *reg_prefix != '\0')
7296 printf (" DW_CFA_register: %s%s in ",
7297 reg_prefix, regname (reg, 0));
7298 puts (regname (roffs, 0));
7300 if (*reg_prefix == '\0')
7302 fc->col_type[reg] = DW_CFA_register;
7303 fc->col_offset[reg] = roffs;
7307 case DW_CFA_remember_state:
7308 if (! do_debug_frames_interp)
7309 printf (" DW_CFA_remember_state\n");
7310 rs = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk));
7311 rs->cfa_offset = fc->cfa_offset;
7312 rs->cfa_reg = fc->cfa_reg;
7314 rs->cfa_exp = fc->cfa_exp;
7315 rs->ncols = fc->ncols;
7316 rs->col_type = (short int *) xcmalloc (rs->ncols,
7317 sizeof (* rs->col_type));
7318 rs->col_offset = (int *) xcmalloc (rs->ncols, sizeof (* rs->col_offset));
7319 memcpy (rs->col_type, fc->col_type, rs->ncols * sizeof (* fc->col_type));
7320 memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (* fc->col_offset));
7321 rs->next = remembered_state;
7322 remembered_state = rs;
7325 case DW_CFA_restore_state:
7326 if (! do_debug_frames_interp)
7327 printf (" DW_CFA_restore_state\n");
7328 rs = remembered_state;
7331 remembered_state = rs->next;
7332 fc->cfa_offset = rs->cfa_offset;
7333 fc->cfa_reg = rs->cfa_reg;
7335 fc->cfa_exp = rs->cfa_exp;
7336 if (frame_need_space (fc, rs->ncols - 1) < 0)
7338 warn (_("Invalid column number in saved frame state\n"));
7342 memcpy (fc->col_type, rs->col_type, rs->ncols * sizeof (* rs->col_type));
7343 memcpy (fc->col_offset, rs->col_offset,
7344 rs->ncols * sizeof (* rs->col_offset));
7345 free (rs->col_type);
7346 free (rs->col_offset);
7349 else if (do_debug_frames_interp)
7350 printf ("Mismatched DW_CFA_restore_state\n");
7353 case DW_CFA_def_cfa:
7354 fc->cfa_reg = LEB ();
7355 fc->cfa_offset = LEB ();
7357 if (! do_debug_frames_interp)
7358 printf (" DW_CFA_def_cfa: %s ofs %d\n",
7359 regname (fc->cfa_reg, 0), (int) fc->cfa_offset);
7362 case DW_CFA_def_cfa_register:
7363 fc->cfa_reg = LEB ();
7365 if (! do_debug_frames_interp)
7366 printf (" DW_CFA_def_cfa_register: %s\n",
7367 regname (fc->cfa_reg, 0));
7370 case DW_CFA_def_cfa_offset:
7371 fc->cfa_offset = LEB ();
7372 if (! do_debug_frames_interp)
7373 printf (" DW_CFA_def_cfa_offset: %d\n", (int) fc->cfa_offset);
7377 if (! do_debug_frames_interp)
7378 printf (" DW_CFA_nop\n");
7381 case DW_CFA_def_cfa_expression:
7383 if (start >= block_end || ul > (unsigned long) (block_end - start))
7385 printf (_(" DW_CFA_def_cfa_expression: <corrupt len %lu>\n"), ul);
7388 if (! do_debug_frames_interp)
7390 printf (" DW_CFA_def_cfa_expression (");
7391 decode_location_expression (start, eh_addr_size, 0, -1,
7399 case DW_CFA_expression:
7402 if (reg >= (unsigned int) fc->ncols)
7403 reg_prefix = bad_reg;
7404 /* PR 17512: file: 069-133014-0.006. */
7405 /* PR 17512: file: 98c02eb4. */
7407 if (start >= block_end || tmp > block_end || tmp < start)
7409 printf (_(" DW_CFA_expression: <corrupt len %lu>\n"), ul);
7412 if (! do_debug_frames_interp || *reg_prefix != '\0')
7414 printf (" DW_CFA_expression: %s%s (",
7415 reg_prefix, regname (reg, 0));
7416 decode_location_expression (start, eh_addr_size, 0, -1,
7420 if (*reg_prefix == '\0')
7421 fc->col_type[reg] = DW_CFA_expression;
7425 case DW_CFA_val_expression:
7428 if (reg >= (unsigned int) fc->ncols)
7429 reg_prefix = bad_reg;
7431 if (start >= block_end || tmp > block_end || tmp < start)
7433 printf (" DW_CFA_val_expression: <corrupt len %lu>\n", ul);
7436 if (! do_debug_frames_interp || *reg_prefix != '\0')
7438 printf (" DW_CFA_val_expression: %s%s (",
7439 reg_prefix, regname (reg, 0));
7440 decode_location_expression (start, eh_addr_size, 0, -1,
7444 if (*reg_prefix == '\0')
7445 fc->col_type[reg] = DW_CFA_val_expression;
7449 case DW_CFA_offset_extended_sf:
7452 if (frame_need_space (fc, reg) < 0)
7453 reg_prefix = bad_reg;
7454 if (! do_debug_frames_interp || *reg_prefix != '\0')
7455 printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n",
7456 reg_prefix, regname (reg, 0),
7457 (long)(l * fc->data_factor));
7458 if (*reg_prefix == '\0')
7460 fc->col_type[reg] = DW_CFA_offset;
7461 fc->col_offset[reg] = l * fc->data_factor;
7465 case DW_CFA_val_offset_sf:
7468 if (frame_need_space (fc, reg) < 0)
7469 reg_prefix = bad_reg;
7470 if (! do_debug_frames_interp || *reg_prefix != '\0')
7471 printf (" DW_CFA_val_offset_sf: %s%s is cfa%+ld\n",
7472 reg_prefix, regname (reg, 0),
7473 (long)(l * fc->data_factor));
7474 if (*reg_prefix == '\0')
7476 fc->col_type[reg] = DW_CFA_val_offset;
7477 fc->col_offset[reg] = l * fc->data_factor;
7481 case DW_CFA_def_cfa_sf:
7482 fc->cfa_reg = LEB ();
7483 fc->cfa_offset = SLEB ();
7484 fc->cfa_offset = fc->cfa_offset * fc->data_factor;
7486 if (! do_debug_frames_interp)
7487 printf (" DW_CFA_def_cfa_sf: %s ofs %d\n",
7488 regname (fc->cfa_reg, 0), (int) fc->cfa_offset);
7491 case DW_CFA_def_cfa_offset_sf:
7492 fc->cfa_offset = SLEB ();
7493 fc->cfa_offset *= fc->data_factor;
7494 if (! do_debug_frames_interp)
7495 printf (" DW_CFA_def_cfa_offset_sf: %d\n", (int) fc->cfa_offset);
7498 case DW_CFA_MIPS_advance_loc8:
7499 SAFE_BYTE_GET_AND_INC (ofs, start, 8, block_end);
7500 if (do_debug_frames_interp)
7501 frame_display_row (fc, &need_col_headers, &max_regs);
7503 printf (" DW_CFA_MIPS_advance_loc8: %ld to %s\n",
7504 (unsigned long) (ofs * fc->code_factor),
7505 dwarf_vmatoa_1 (NULL,
7506 fc->pc_begin + ofs * fc->code_factor,
7508 fc->pc_begin += ofs * fc->code_factor;
7511 case DW_CFA_GNU_window_save:
7512 if (! do_debug_frames_interp)
7513 printf (" DW_CFA_GNU_window_save\n");
7516 case DW_CFA_GNU_args_size:
7518 if (! do_debug_frames_interp)
7519 printf (" DW_CFA_GNU_args_size: %ld\n", ul);
7522 case DW_CFA_GNU_negative_offset_extended:
7525 if (frame_need_space (fc, reg) < 0)
7526 reg_prefix = bad_reg;
7527 if (! do_debug_frames_interp || *reg_prefix != '\0')
7528 printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n",
7529 reg_prefix, regname (reg, 0),
7530 (long)(l * fc->data_factor));
7531 if (*reg_prefix == '\0')
7533 fc->col_type[reg] = DW_CFA_offset;
7534 fc->col_offset[reg] = l * fc->data_factor;
7539 if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user)
7540 printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op);
7542 warn (_("Unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op);
7547 /* Interpret the CFA - as long as it is not completely full of NOPs. */
7548 if (do_debug_frames_interp && ! all_nops)
7549 frame_display_row (fc, &need_col_headers, &max_regs);
7552 eh_addr_size = saved_eh_addr_size;
7565 display_gdb_index (struct dwarf_section *section,
7566 void *file ATTRIBUTE_UNUSED)
7568 unsigned char *start = section->start;
7570 uint32_t cu_list_offset, tu_list_offset;
7571 uint32_t address_table_offset, symbol_table_offset, constant_pool_offset;
7572 unsigned int cu_list_elements, tu_list_elements;
7573 unsigned int address_table_size, symbol_table_slots;
7574 unsigned char *cu_list, *tu_list;
7575 unsigned char *address_table, *symbol_table, *constant_pool;
7578 /* The documentation for the format of this file is in gdb/dwarf2read.c. */
7580 printf (_("Contents of the %s section:\n"), section->name);
7582 if (section->size < 6 * sizeof (uint32_t))
7584 warn (_("Truncated header in the %s section.\n"), section->name);
7588 version = byte_get_little_endian (start, 4);
7589 printf (_("Version %ld\n"), (long) version);
7591 /* Prior versions are obsolete, and future versions may not be
7592 backwards compatible. */
7593 if (version < 3 || version > 8)
7595 warn (_("Unsupported version %lu.\n"), (unsigned long) version);
7599 warn (_("The address table data in version 3 may be wrong.\n"));
7601 warn (_("Version 4 does not support case insensitive lookups.\n"));
7603 warn (_("Version 5 does not include inlined functions.\n"));
7605 warn (_("Version 6 does not include symbol attributes.\n"));
7606 /* Version 7 indices generated by Gold have bad type unit references,
7607 PR binutils/15021. But we don't know if the index was generated by
7608 Gold or not, so to avoid worrying users with gdb-generated indices
7609 we say nothing for version 7 here. */
7611 cu_list_offset = byte_get_little_endian (start + 4, 4);
7612 tu_list_offset = byte_get_little_endian (start + 8, 4);
7613 address_table_offset = byte_get_little_endian (start + 12, 4);
7614 symbol_table_offset = byte_get_little_endian (start + 16, 4);
7615 constant_pool_offset = byte_get_little_endian (start + 20, 4);
7617 if (cu_list_offset > section->size
7618 || tu_list_offset > section->size
7619 || address_table_offset > section->size
7620 || symbol_table_offset > section->size
7621 || constant_pool_offset > section->size)
7623 warn (_("Corrupt header in the %s section.\n"), section->name);
7627 /* PR 17531: file: 418d0a8a. */
7628 if (tu_list_offset < cu_list_offset)
7630 warn (_("TU offset (%x) is less than CU offset (%x)\n"),
7631 tu_list_offset, cu_list_offset);
7635 cu_list_elements = (tu_list_offset - cu_list_offset) / 8;
7637 if (address_table_offset < tu_list_offset)
7639 warn (_("Address table offset (%x) is less than TU offset (%x)\n"),
7640 address_table_offset, tu_list_offset);
7644 tu_list_elements = (address_table_offset - tu_list_offset) / 8;
7646 /* PR 17531: file: 18a47d3d. */
7647 if (symbol_table_offset < address_table_offset)
7649 warn (_("Symbol table offset (%xl) is less then Address table offset (%x)\n"),
7650 symbol_table_offset, address_table_offset);
7654 address_table_size = symbol_table_offset - address_table_offset;
7656 if (constant_pool_offset < symbol_table_offset)
7658 warn (_("Constant pool offset (%x) is less than symbol table offset (%x)\n"),
7659 constant_pool_offset, symbol_table_offset);
7663 symbol_table_slots = (constant_pool_offset - symbol_table_offset) / 8;
7665 cu_list = start + cu_list_offset;
7666 tu_list = start + tu_list_offset;
7667 address_table = start + address_table_offset;
7668 symbol_table = start + symbol_table_offset;
7669 constant_pool = start + constant_pool_offset;
7671 if (address_table + address_table_size * (2 + 8 + 4) > section->start + section->size)
7673 warn (_("Address table extends beyond end of section.\n"));
7677 printf (_("\nCU table:\n"));
7678 for (i = 0; i < cu_list_elements; i += 2)
7680 uint64_t cu_offset = byte_get_little_endian (cu_list + i * 8, 8);
7681 uint64_t cu_length = byte_get_little_endian (cu_list + i * 8 + 8, 8);
7683 printf (_("[%3u] 0x%lx - 0x%lx\n"), i / 2,
7684 (unsigned long) cu_offset,
7685 (unsigned long) (cu_offset + cu_length - 1));
7688 printf (_("\nTU table:\n"));
7689 for (i = 0; i < tu_list_elements; i += 3)
7691 uint64_t tu_offset = byte_get_little_endian (tu_list + i * 8, 8);
7692 uint64_t type_offset = byte_get_little_endian (tu_list + i * 8 + 8, 8);
7693 uint64_t signature = byte_get_little_endian (tu_list + i * 8 + 16, 8);
7695 printf (_("[%3u] 0x%lx 0x%lx "), i / 3,
7696 (unsigned long) tu_offset,
7697 (unsigned long) type_offset);
7698 print_dwarf_vma (signature, 8);
7702 printf (_("\nAddress table:\n"));
7703 for (i = 0; i < address_table_size && i <= address_table_size - (2 * 8 + 4);
7706 uint64_t low = byte_get_little_endian (address_table + i, 8);
7707 uint64_t high = byte_get_little_endian (address_table + i + 8, 8);
7708 uint32_t cu_index = byte_get_little_endian (address_table + i + 16, 4);
7710 print_dwarf_vma (low, 8);
7711 print_dwarf_vma (high, 8);
7712 printf (_("%lu\n"), (unsigned long) cu_index);
7715 printf (_("\nSymbol table:\n"));
7716 for (i = 0; i < symbol_table_slots; ++i)
7718 uint32_t name_offset = byte_get_little_endian (symbol_table + i * 8, 4);
7719 uint32_t cu_vector_offset = byte_get_little_endian (symbol_table + i * 8 + 4, 4);
7720 uint32_t num_cus, cu;
7722 if (name_offset != 0
7723 || cu_vector_offset != 0)
7726 unsigned char * adr;
7728 adr = constant_pool + name_offset;
7729 /* PR 17531: file: 5b7b07ad. */
7730 if (adr < constant_pool || adr >= section->start + section->size)
7732 printf (_("[%3u] <corrupt offset: %x>"), i, name_offset);
7733 warn (_("Corrupt name offset of 0x%x found for symbol table slot %d\n"),
7737 printf ("[%3u] %.*s:", i,
7738 (int) (section->size - (constant_pool_offset + name_offset)),
7739 constant_pool + name_offset);
7741 adr = constant_pool + cu_vector_offset;
7742 if (adr < constant_pool || adr >= section->start + section->size - 3)
7744 printf (_("<invalid CU vector offset: %x>\n"), cu_vector_offset);
7745 warn (_("Corrupt CU vector offset of 0x%x found for symbol table slot %d\n"),
7746 cu_vector_offset, i);
7750 num_cus = byte_get_little_endian (adr, 4);
7752 adr = constant_pool + cu_vector_offset + 4 + num_cus * 4;
7753 if (num_cus * 4 < num_cus
7754 || adr >= section->start + section->size
7755 || adr < constant_pool)
7757 printf ("<invalid number of CUs: %d>\n", num_cus);
7758 warn (_("Invalid number of CUs (0x%x) for symbol table slot %d\n"),
7766 for (j = 0; j < num_cus; ++j)
7769 gdb_index_symbol_kind kind;
7771 cu = byte_get_little_endian (constant_pool + cu_vector_offset + 4 + j * 4, 4);
7772 is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (cu);
7773 kind = GDB_INDEX_SYMBOL_KIND_VALUE (cu);
7774 cu = GDB_INDEX_CU_VALUE (cu);
7775 /* Convert to TU number if it's for a type unit. */
7776 if (cu >= cu_list_elements / 2)
7777 printf ("%cT%lu", num_cus > 1 ? '\t' : ' ',
7778 (unsigned long) (cu - cu_list_elements / 2));
7780 printf ("%c%lu", num_cus > 1 ? '\t' : ' ', (unsigned long) cu);
7782 printf (" [%s, %s]",
7783 is_static ? _("static") : _("global"),
7784 get_gdb_index_symbol_kind_name (kind));
7796 /* Pre-allocate enough space for the CU/TU sets needed. */
7799 prealloc_cu_tu_list (unsigned int nshndx)
7801 if (shndx_pool == NULL)
7803 shndx_pool_size = nshndx;
7804 shndx_pool_used = 0;
7805 shndx_pool = (unsigned int *) xcmalloc (shndx_pool_size,
7806 sizeof (unsigned int));
7810 shndx_pool_size = shndx_pool_used + nshndx;
7811 shndx_pool = (unsigned int *) xcrealloc (shndx_pool, shndx_pool_size,
7812 sizeof (unsigned int));
7817 add_shndx_to_cu_tu_entry (unsigned int shndx)
7819 if (shndx_pool_used >= shndx_pool_size)
7821 error (_("Internal error: out of space in the shndx pool.\n"));
7824 shndx_pool [shndx_pool_used++] = shndx;
7828 end_cu_tu_entry (void)
7830 if (shndx_pool_used >= shndx_pool_size)
7832 error (_("Internal error: out of space in the shndx pool.\n"));
7835 shndx_pool [shndx_pool_used++] = 0;
7838 /* Return the short name of a DWARF section given by a DW_SECT enumerator. */
7841 get_DW_SECT_short_name (unsigned int dw_sect)
7843 static char buf[16];
7851 case DW_SECT_ABBREV:
7857 case DW_SECT_STR_OFFSETS:
7859 case DW_SECT_MACINFO:
7867 snprintf (buf, sizeof (buf), "%d", dw_sect);
7871 /* Process a CU or TU index. If DO_DISPLAY is true, print the contents.
7872 These sections are extensions for Fission.
7873 See http://gcc.gnu.org/wiki/DebugFissionDWP. */
7876 process_cu_tu_index (struct dwarf_section *section, int do_display)
7878 unsigned char *phdr = section->start;
7879 unsigned char *limit = phdr + section->size;
7880 unsigned char *phash;
7881 unsigned char *pindex;
7882 unsigned char *ppool;
7883 unsigned int version;
7884 unsigned int ncols = 0;
7886 unsigned int nslots;
7889 dwarf_vma signature_high;
7890 dwarf_vma signature_low;
7893 /* PR 17512: file: 002-168123-0.004. */
7896 warn (_("Section %s is empty\n"), section->name);
7899 /* PR 17512: file: 002-376-0.004. */
7900 if (section->size < 24)
7902 warn (_("Section %s is too small to contain a CU/TU header\n"),
7907 SAFE_BYTE_GET (version, phdr, 4, limit);
7909 SAFE_BYTE_GET (ncols, phdr + 4, 4, limit);
7910 SAFE_BYTE_GET (nused, phdr + 8, 4, limit);
7911 SAFE_BYTE_GET (nslots, phdr + 12, 4, limit);
7914 pindex = phash + nslots * 8;
7915 ppool = pindex + nslots * 4;
7917 /* PR 17531: file: 45d69832. */
7918 if (pindex < phash || ppool < phdr || (pindex == phash && nslots != 0))
7920 warn (_("Section %s is too small for %d slots\n"),
7921 section->name, nslots);
7927 printf (_("Contents of the %s section:\n\n"), section->name);
7928 printf (_(" Version: %d\n"), version);
7930 printf (_(" Number of columns: %d\n"), ncols);
7931 printf (_(" Number of used entries: %d\n"), nused);
7932 printf (_(" Number of slots: %d\n\n"), nslots);
7935 if (ppool > limit || ppool < phdr)
7937 warn (_("Section %s too small for %d hash table entries\n"),
7938 section->name, nslots);
7945 prealloc_cu_tu_list ((limit - ppool) / 4);
7946 for (i = 0; i < nslots; i++)
7948 unsigned char *shndx_list;
7951 SAFE_BYTE_GET64 (phash, &signature_high, &signature_low, limit);
7952 if (signature_high != 0 || signature_low != 0)
7954 SAFE_BYTE_GET (j, pindex, 4, limit);
7955 shndx_list = ppool + j * 4;
7956 /* PR 17531: file: 705e010d. */
7957 if (shndx_list < ppool)
7959 warn (_("Section index pool located before start of section\n"));
7964 printf (_(" [%3d] Signature: 0x%s Sections: "),
7965 i, dwarf_vmatoa64 (signature_high, signature_low,
7966 buf, sizeof (buf)));
7969 if (shndx_list >= limit)
7971 warn (_("Section %s too small for shndx pool\n"),
7975 SAFE_BYTE_GET (shndx, shndx_list, 4, limit);
7979 printf (" %d", shndx);
7981 add_shndx_to_cu_tu_entry (shndx);
7993 else if (version == 2)
7996 unsigned int dw_sect;
7997 unsigned char *ph = phash;
7998 unsigned char *pi = pindex;
7999 unsigned char *poffsets = ppool + ncols * 4;
8000 unsigned char *psizes = poffsets + nused * ncols * 4;
8001 unsigned char *pend = psizes + nused * ncols * 4;
8002 bfd_boolean is_tu_index;
8003 struct cu_tu_set *this_set = NULL;
8005 unsigned char *prow;
8007 is_tu_index = strcmp (section->name, ".debug_tu_index") == 0;
8009 /* PR 17531: file: 0dd159bf.
8010 Check for wraparound with an overlarge ncols value. */
8011 if (poffsets < ppool || (unsigned int) ((poffsets - ppool) / 4) != ncols)
8013 warn (_("Overlarge number of columns: %x\n"), ncols);
8019 warn (_("Section %s too small for offset and size tables\n"),
8026 printf (_(" Offset table\n"));
8027 printf (" slot %-16s ",
8028 is_tu_index ? _("signature") : _("dwo_id"));
8035 tu_sets = xcalloc2 (nused, sizeof (struct cu_tu_set));
8041 cu_sets = xcalloc2 (nused, sizeof (struct cu_tu_set));
8048 for (j = 0; j < ncols; j++)
8050 SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit);
8051 printf (" %8s", get_DW_SECT_short_name (dw_sect));
8056 for (i = 0; i < nslots; i++)
8058 SAFE_BYTE_GET64 (ph, &signature_high, &signature_low, limit);
8060 SAFE_BYTE_GET (row, pi, 4, limit);
8063 /* PR 17531: file: a05f6ab3. */
8066 warn (_("Row index (%u) is larger than number of used entries (%u)\n"),
8072 memcpy (&this_set[row - 1].signature, ph, sizeof (uint64_t));
8074 prow = poffsets + (row - 1) * ncols * 4;
8075 /* PR 17531: file: b8ce60a8. */
8076 if (prow < poffsets || prow > limit)
8078 warn (_("Row index (%u) * num columns (%u) > space remaining in section\n"),
8084 printf (_(" [%3d] 0x%s"),
8085 i, dwarf_vmatoa64 (signature_high, signature_low,
8086 buf, sizeof (buf)));
8087 for (j = 0; j < ncols; j++)
8089 SAFE_BYTE_GET (val, prow + j * 4, 4, limit);
8091 printf (" %8d", val);
8094 SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit);
8096 /* PR 17531: file: 10796eb3. */
8097 if (dw_sect >= DW_SECT_MAX)
8098 warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect);
8100 this_set [row - 1].section_offsets [dw_sect] = val;
8116 printf (_(" Size table\n"));
8117 printf (" slot %-16s ",
8118 is_tu_index ? _("signature") : _("dwo_id"));
8121 for (j = 0; j < ncols; j++)
8123 SAFE_BYTE_GET (val, ppool + j * 4, 4, limit);
8125 printf (" %8s", get_DW_SECT_short_name (val));
8131 for (i = 0; i < nslots; i++)
8133 SAFE_BYTE_GET64 (ph, &signature_high, &signature_low, limit);
8135 SAFE_BYTE_GET (row, pi, 4, limit);
8138 prow = psizes + (row - 1) * ncols * 4;
8141 printf (_(" [%3d] 0x%s"),
8142 i, dwarf_vmatoa64 (signature_high, signature_low,
8143 buf, sizeof (buf)));
8145 for (j = 0; j < ncols; j++)
8147 SAFE_BYTE_GET (val, prow + j * 4, 4, limit);
8149 printf (" %8d", val);
8152 SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit);
8153 if (dw_sect >= DW_SECT_MAX)
8154 warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect);
8156 this_set [row - 1].section_sizes [dw_sect] = val;
8168 else if (do_display)
8169 printf (_(" Unsupported version (%d)\n"), version);
8177 /* Load the CU and TU indexes if present. This will build a list of
8178 section sets that we can use to associate a .debug_info.dwo section
8179 with its associated .debug_abbrev.dwo section in a .dwp file. */
8182 load_cu_tu_indexes (void *file)
8184 static int cu_tu_indexes_read = -1; /* Tri-state variable. */
8186 /* If we have already loaded (or tried to load) the CU and TU indexes
8187 then do not bother to repeat the task. */
8188 if (cu_tu_indexes_read == -1)
8190 cu_tu_indexes_read = TRUE;
8192 if (load_debug_section (dwp_cu_index, file))
8193 if (! process_cu_tu_index (&debug_displays [dwp_cu_index].section, 0))
8194 cu_tu_indexes_read = FALSE;
8196 if (load_debug_section (dwp_tu_index, file))
8197 if (! process_cu_tu_index (&debug_displays [dwp_tu_index].section, 0))
8198 cu_tu_indexes_read = FALSE;
8201 return (bfd_boolean) cu_tu_indexes_read;
8204 /* Find the set of sections that includes section SHNDX. */
8207 find_cu_tu_set (void *file, unsigned int shndx)
8211 if (! load_cu_tu_indexes (file))
8214 /* Find SHNDX in the shndx pool. */
8215 for (i = 0; i < shndx_pool_used; i++)
8216 if (shndx_pool [i] == shndx)
8219 if (i >= shndx_pool_used)
8222 /* Now backup to find the first entry in the set. */
8223 while (i > 0 && shndx_pool [i - 1] != 0)
8226 return shndx_pool + i;
8229 /* Display a .debug_cu_index or .debug_tu_index section. */
8232 display_cu_index (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED)
8234 return process_cu_tu_index (section, 1);
8238 display_debug_not_supported (struct dwarf_section *section,
8239 void *file ATTRIBUTE_UNUSED)
8241 printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
8247 /* Like malloc, but takes two parameters like calloc.
8248 Verifies that the first parameter is not too large.
8249 Note: does *not* initialise the allocated memory to zero. */
8251 cmalloc (size_t nmemb, size_t size)
8253 /* Check for overflow. */
8254 if (nmemb >= ~(size_t) 0 / size)
8257 return xmalloc (nmemb * size);
8260 /* Like xmalloc, but takes two parameters like calloc.
8261 Verifies that the first parameter is not too large.
8262 Note: does *not* initialise the allocated memory to zero. */
8264 xcmalloc (size_t nmemb, size_t size)
8266 /* Check for overflow. */
8267 if (nmemb >= ~(size_t) 0 / size)
8270 _("Attempt to allocate an array with an excessive number of elements: 0x%lx\n"),
8275 return xmalloc (nmemb * size);
8278 /* Like xrealloc, but takes three parameters.
8279 Verifies that the second parameter is not too large.
8280 Note: does *not* initialise any new memory to zero. */
8282 xcrealloc (void *ptr, size_t nmemb, size_t size)
8284 /* Check for overflow. */
8285 if (nmemb >= ~(size_t) 0 / size)
8288 _("Attempt to re-allocate an array with an excessive number of elements: 0x%lx\n"),
8293 return xrealloc (ptr, nmemb * size);
8296 /* Like xcalloc, but verifies that the first parameter is not too large. */
8298 xcalloc2 (size_t nmemb, size_t size)
8300 /* Check for overflow. */
8301 if (nmemb >= ~(size_t) 0 / size)
8304 _("Attempt to allocate a zero'ed array with an excessive number of elements: 0x%lx\n"),
8309 return xcalloc (nmemb, size);
8313 free_debug_memory (void)
8319 for (i = 0; i < max; i++)
8320 free_debug_section ((enum dwarf_section_display_enum) i);
8322 if (debug_information != NULL)
8324 if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE)
8326 for (i = 0; i < num_debug_info_entries; i++)
8328 if (!debug_information [i].max_loc_offsets)
8330 free (debug_information [i].loc_offsets);
8331 free (debug_information [i].have_frame_base);
8333 if (!debug_information [i].max_range_lists)
8334 free (debug_information [i].range_lists);
8337 free (debug_information);
8338 debug_information = NULL;
8339 alloc_num_debug_info_entries = num_debug_info_entries = 0;
8344 dwarf_select_sections_by_names (const char *names)
8348 const char * option;
8352 debug_dump_long_opts;
8354 static const debug_dump_long_opts opts_table [] =
8356 /* Please keep this table alpha- sorted. */
8357 { "Ranges", & do_debug_ranges, 1 },
8358 { "abbrev", & do_debug_abbrevs, 1 },
8359 { "addr", & do_debug_addr, 1 },
8360 { "aranges", & do_debug_aranges, 1 },
8361 { "cu_index", & do_debug_cu_index, 1 },
8362 { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED },
8363 { "frames", & do_debug_frames, 1 },
8364 { "frames-interp", & do_debug_frames_interp, 1 },
8365 /* The special .gdb_index section. */
8366 { "gdb_index", & do_gdb_index, 1 },
8367 { "info", & do_debug_info, 1 },
8368 { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */
8369 { "loc", & do_debug_loc, 1 },
8370 { "macro", & do_debug_macinfo, 1 },
8371 { "pubnames", & do_debug_pubnames, 1 },
8372 { "pubtypes", & do_debug_pubtypes, 1 },
8373 /* This entry is for compatibility
8374 with earlier versions of readelf. */
8375 { "ranges", & do_debug_aranges, 1 },
8376 { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW },
8377 { "str", & do_debug_str, 1 },
8378 /* These trace_* sections are used by Itanium VMS. */
8379 { "trace_abbrev", & do_trace_abbrevs, 1 },
8380 { "trace_aranges", & do_trace_aranges, 1 },
8381 { "trace_info", & do_trace_info, 1 },
8390 const debug_dump_long_opts * entry;
8392 for (entry = opts_table; entry->option; entry++)
8394 size_t len = strlen (entry->option);
8396 if (strncmp (p, entry->option, len) == 0
8397 && (p[len] == ',' || p[len] == '\0'))
8399 * entry->variable |= entry->val;
8401 /* The --debug-dump=frames-interp option also
8402 enables the --debug-dump=frames option. */
8403 if (do_debug_frames_interp)
8404 do_debug_frames = 1;
8411 if (entry->option == NULL)
8413 warn (_("Unrecognized debug option '%s'\n"), p);
8414 p = strchr (p, ',');
8425 dwarf_select_sections_by_letters (const char *letters)
8427 unsigned int lindex = 0;
8429 while (letters[lindex])
8430 switch (letters[lindex++])
8437 do_debug_abbrevs = 1;
8441 do_debug_lines |= FLAG_DEBUG_LINES_RAW;
8445 do_debug_lines |= FLAG_DEBUG_LINES_DECODED;
8449 do_debug_pubnames = 1;
8453 do_debug_pubtypes = 1;
8457 do_debug_aranges = 1;
8461 do_debug_ranges = 1;
8465 do_debug_frames_interp = 1;
8468 do_debug_frames = 1;
8472 do_debug_macinfo = 1;
8484 warn (_("Unrecognized debug option '%s'\n"), letters);
8490 dwarf_select_sections_all (void)
8493 do_debug_abbrevs = 1;
8494 do_debug_lines = FLAG_DEBUG_LINES_RAW;
8495 do_debug_pubnames = 1;
8496 do_debug_pubtypes = 1;
8497 do_debug_aranges = 1;
8498 do_debug_ranges = 1;
8499 do_debug_frames = 1;
8500 do_debug_macinfo = 1;
8505 do_trace_abbrevs = 1;
8506 do_trace_aranges = 1;
8508 do_debug_cu_index = 1;
8511 struct dwarf_section_display debug_displays[] =
8513 { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8514 display_debug_abbrev, &do_debug_abbrevs, FALSE },
8515 { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8516 display_debug_aranges, &do_debug_aranges, TRUE },
8517 { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8518 display_debug_frames, &do_debug_frames, TRUE },
8519 { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0, abbrev, NULL, 0, NULL },
8520 display_debug_info, &do_debug_info, TRUE },
8521 { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8522 display_debug_lines, &do_debug_lines, TRUE },
8523 { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8524 display_debug_pubnames, &do_debug_pubnames, FALSE },
8525 { { ".debug_gnu_pubnames", ".zdebug_gnu_pubnames", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8526 display_debug_gnu_pubnames, &do_debug_pubnames, FALSE },
8527 { { ".eh_frame", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8528 display_debug_frames, &do_debug_frames, TRUE },
8529 { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8530 display_debug_macinfo, &do_debug_macinfo, FALSE },
8531 { { ".debug_macro", ".zdebug_macro", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8532 display_debug_macro, &do_debug_macinfo, TRUE },
8533 { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8534 display_debug_str, &do_debug_str, FALSE },
8535 { { ".debug_line_str", ".zdebug_line_str", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8536 display_debug_str, &do_debug_str, FALSE },
8537 { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8538 display_debug_loc, &do_debug_loc, TRUE },
8539 { { ".debug_loclists", ".zdebug_loclists", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8540 display_debug_loc, &do_debug_loc, TRUE },
8541 { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8542 display_debug_pubnames, &do_debug_pubtypes, FALSE },
8543 { { ".debug_gnu_pubtypes", ".zdebug_gnu_pubtypes", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8544 display_debug_gnu_pubnames, &do_debug_pubtypes, FALSE },
8545 { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8546 display_debug_ranges, &do_debug_ranges, TRUE },
8547 { { ".debug_rnglists", ".zdebug_rnglists", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8548 display_debug_ranges, &do_debug_ranges, TRUE },
8549 { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8550 display_debug_not_supported, NULL, FALSE },
8551 { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8552 display_debug_not_supported, NULL, FALSE },
8553 { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0, abbrev, NULL, 0, NULL },
8554 display_debug_types, &do_debug_info, TRUE },
8555 { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8556 display_debug_not_supported, NULL, FALSE },
8557 { { ".gdb_index", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8558 display_gdb_index, &do_gdb_index, FALSE },
8559 { { ".trace_info", "", NULL, NULL, 0, 0, trace_abbrev, NULL, 0, NULL },
8560 display_trace_info, &do_trace_info, TRUE },
8561 { { ".trace_abbrev", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8562 display_debug_abbrev, &do_trace_abbrevs, FALSE },
8563 { { ".trace_aranges", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8564 display_debug_aranges, &do_trace_aranges, FALSE },
8565 { { ".debug_info.dwo", ".zdebug_info.dwo", NULL, NULL, 0, 0, abbrev_dwo, NULL, 0, NULL },
8566 display_debug_info, &do_debug_info, TRUE },
8567 { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8568 display_debug_abbrev, &do_debug_abbrevs, FALSE },
8569 { { ".debug_types.dwo", ".zdebug_types.dwo", NULL, NULL, 0, 0, abbrev_dwo, NULL, 0, NULL },
8570 display_debug_types, &do_debug_info, TRUE },
8571 { { ".debug_line.dwo", ".zdebug_line.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8572 display_debug_lines, &do_debug_lines, TRUE },
8573 { { ".debug_loc.dwo", ".zdebug_loc.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8574 display_debug_loc, &do_debug_loc, TRUE },
8575 { { ".debug_macro.dwo", ".zdebug_macro.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8576 display_debug_macro, &do_debug_macinfo, TRUE },
8577 { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8578 display_debug_macinfo, &do_debug_macinfo, FALSE },
8579 { { ".debug_str.dwo", ".zdebug_str.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8580 display_debug_str, &do_debug_str, TRUE },
8581 { { ".debug_str_offsets", ".zdebug_str_offsets", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8582 display_debug_str_offsets, NULL, FALSE },
8583 { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8584 display_debug_str_offsets, NULL, FALSE },
8585 { { ".debug_addr", ".zdebug_addr", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8586 display_debug_addr, &do_debug_addr, TRUE },
8587 { { ".debug_cu_index", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8588 display_cu_index, &do_debug_cu_index, FALSE },
8589 { { ".debug_tu_index", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
8590 display_cu_index, &do_debug_cu_index, FALSE },