1 /* dwarf.c -- display DWARF contents of a BFD binary file
2 Copyright (C) 2005-2021 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"
27 #include "elf/common.h"
30 #include "gdb/gdb-index.h"
31 #include "filenames.h"
32 #include "safe-ctype.h"
35 #ifdef HAVE_LIBDEBUGINFOD
36 #include <elfutils/debuginfod.h>
46 #define MAX(a, b) ((a) > (b) ? (a) : (b))
47 #define MIN(a, b) ((a) < (b) ? (a) : (b))
49 static const char *regname (unsigned int regno
, int row
);
50 static const char *regname_internal_by_table_only (unsigned int regno
);
52 static int have_frame_base
;
53 static int need_base_address
;
55 static unsigned int num_debug_info_entries
= 0;
56 static unsigned int alloc_num_debug_info_entries
= 0;
57 static debug_info
*debug_information
= NULL
;
58 /* Special value for num_debug_info_entries to indicate
59 that the .debug_info section could not be loaded/parsed. */
60 #define DEBUG_INFO_UNAVAILABLE (unsigned int) -1
62 /* A .debug_info section can contain multiple links to separate
63 DWO object files. We use these structures to record these links. */
71 typedef struct dwo_info
76 struct dwo_info
* next
;
79 static dwo_info
*first_dwo_info
= NULL
;
80 static bool need_dwo_info
;
82 separate_info
* first_separate_info
= NULL
;
84 unsigned int eh_addr_size
;
89 int do_debug_pubnames
;
90 int do_debug_pubtypes
;
94 int do_debug_frames_interp
;
97 int do_debug_str_offsets
;
101 int do_trace_abbrevs
;
102 int do_trace_aranges
;
104 int do_debug_cu_index
;
107 int do_follow_links
= DEFAULT_FOR_FOLLOW_LINKS
;
110 int dwarf_cutoff_level
= -1;
111 unsigned long dwarf_start_die
;
115 /* Convenient constant, to avoid having to cast -1 to dwarf_vma when
116 testing whether e.g. a locview list is present. */
117 static const dwarf_vma vm1
= -1;
119 /* Collection of CU/TU section sets from .debug_cu_index and .debug_tu_index
120 sections. For version 1 package files, each set is stored in SHNDX_POOL
121 as a zero-terminated list of section indexes comprising one set of debug
122 sections from a .dwo file. */
124 static unsigned int *shndx_pool
= NULL
;
125 static unsigned int shndx_pool_size
= 0;
126 static unsigned int shndx_pool_used
= 0;
128 /* For version 2 package files, each set contains an array of section offsets
129 and an array of section sizes, giving the offset and size of the
130 contribution from a CU or TU within one of the debug sections.
131 When displaying debug info from a package file, we need to use these
132 tables to locate the corresponding contributions to each section. */
137 dwarf_vma section_offsets
[DW_SECT_MAX
];
138 size_t section_sizes
[DW_SECT_MAX
];
141 static int cu_count
= 0;
142 static int tu_count
= 0;
143 static struct cu_tu_set
*cu_sets
= NULL
;
144 static struct cu_tu_set
*tu_sets
= NULL
;
146 static bool load_cu_tu_indexes (void *);
148 /* An array that indicates for a given level of CU nesting whether
149 the latest DW_AT_type seen for that level was a signed type or
151 #define MAX_CU_NESTING (1 << 8)
152 static bool level_type_signed
[MAX_CU_NESTING
];
154 /* Values for do_debug_lines. */
155 #define FLAG_DEBUG_LINES_RAW 1
156 #define FLAG_DEBUG_LINES_DECODED 2
159 size_of_encoded_value (int encoding
)
161 switch (encoding
& 0x7)
164 case 0: return eh_addr_size
;
172 get_encoded_value (unsigned char **pdata
,
174 struct dwarf_section
*section
,
177 unsigned char * data
= * pdata
;
178 unsigned int size
= size_of_encoded_value (encoding
);
181 if (data
>= end
|| size
> (size_t) (end
- data
))
183 warn (_("Encoded value extends past end of section\n"));
188 /* PR 17512: file: 002-829853-0.004. */
191 warn (_("Encoded size of %d is too large to read\n"), size
);
196 /* PR 17512: file: 1085-5603-0.004. */
199 warn (_("Encoded size of 0 is too small to read\n"));
204 if (encoding
& DW_EH_PE_signed
)
205 val
= byte_get_signed (data
, size
);
207 val
= byte_get (data
, size
);
209 if ((encoding
& 0x70) == DW_EH_PE_pcrel
)
210 val
+= section
->address
+ (data
- section
->start
);
212 * pdata
= data
+ size
;
216 #if SIZEOF_LONG_LONG > SIZEOF_LONG
218 # define DWARF_VMA_FMT "ll"
219 # define DWARF_VMA_FMT_LONG "%16.16llx"
221 # define DWARF_VMA_FMT "I64"
222 # define DWARF_VMA_FMT_LONG "%016I64x"
225 # define DWARF_VMA_FMT "l"
226 # define DWARF_VMA_FMT_LONG "%16.16lx"
229 /* Convert a dwarf vma value into a string. Returns a pointer to a static
230 buffer containing the converted VALUE. The value is converted according
231 to the printf formating character FMTCH. If NUM_BYTES is non-zero then
232 it specifies the maximum number of bytes to be displayed in the converted
233 value and FMTCH is ignored - hex is always used. */
236 dwarf_vmatoa_1 (const char *fmtch
, dwarf_vma value
, unsigned num_bytes
)
238 /* As dwarf_vmatoa is used more then once in a printf call
239 for output, we are cycling through an fixed array of pointers
240 for return address. */
241 static int buf_pos
= 0;
242 static struct dwarf_vmatoa_buf
248 ret
= buf
[buf_pos
++].place
;
249 buf_pos
%= ARRAY_SIZE (buf
);
253 /* Printf does not have a way of specifying a maximum field width for an
254 integer value, so we print the full value into a buffer and then select
255 the precision we need. */
256 snprintf (ret
, sizeof (buf
[0].place
), DWARF_VMA_FMT_LONG
, value
);
259 return ret
+ (16 - 2 * num_bytes
);
266 sprintf (fmt
, "%%%s%s", DWARF_VMA_FMT
, fmtch
);
268 sprintf (fmt
, "%%%s", DWARF_VMA_FMT
);
269 snprintf (ret
, sizeof (buf
[0].place
), fmt
, value
);
274 static inline const char *
275 dwarf_vmatoa (const char * fmtch
, dwarf_vma value
)
277 return dwarf_vmatoa_1 (fmtch
, value
, 0);
280 /* Print a dwarf_vma value (typically an address, offset or length) in
281 hexadecimal format, followed by a space. The length of the VALUE (and
282 hence the precision displayed) is determined by the NUM_BYTES parameter. */
285 print_dwarf_vma (dwarf_vma value
, unsigned num_bytes
)
287 printf ("%s ", dwarf_vmatoa_1 (NULL
, value
, num_bytes
));
290 /* Print a view number in hexadecimal value, with the same width
291 print_dwarf_vma would have printed it with the same num_bytes.
292 Print blanks for zero view, unless force is nonzero. */
295 print_dwarf_view (dwarf_vma value
, unsigned num_bytes
, int force
)
303 assert (value
== (unsigned long) value
);
305 printf ("v%0*lx ", len
- 1, (unsigned long) value
);
307 printf ("%*s", len
+ 1, "");
310 /* Read in a LEB128 encoded value starting at address DATA.
311 If SIGN is true, return a signed LEB128 value.
312 If LENGTH_RETURN is not NULL, return in it the number of bytes read.
313 If STATUS_RETURN is not NULL, return with bit 0 (LSB) set if the
314 terminating byte was not found and with bit 1 set if the value
315 overflows a dwarf_vma.
316 No bytes will be read at address END or beyond. */
319 read_leb128 (unsigned char *data
,
320 const unsigned char *const end
,
322 unsigned int *length_return
,
325 dwarf_vma result
= 0;
326 unsigned int num_read
= 0;
327 unsigned int shift
= 0;
332 unsigned char byte
= *data
++;
333 unsigned char lost
, mask
;
337 if (shift
< CHAR_BIT
* sizeof (result
))
339 result
|= ((dwarf_vma
) (byte
& 0x7f)) << shift
;
340 /* These bits overflowed. */
341 lost
= byte
^ (result
>> shift
);
342 /* And this is the mask of possible overflow bits. */
343 mask
= 0x7f ^ ((dwarf_vma
) 0x7f << shift
>> shift
);
351 if ((lost
& mask
) != (sign
&& (dwarf_signed_vma
) result
< 0 ? mask
: 0))
354 if ((byte
& 0x80) == 0)
357 if (sign
&& shift
< CHAR_BIT
* sizeof (result
) && (byte
& 0x40))
358 result
|= -((dwarf_vma
) 1 << shift
);
363 if (length_return
!= NULL
)
364 *length_return
= num_read
;
365 if (status_return
!= NULL
)
366 *status_return
= status
;
371 /* Read AMOUNT bytes from PTR and store them in VAL.
372 Checks to make sure that the read will not reach or pass END.
373 FUNC chooses whether the value read is unsigned or signed, and may
374 be either byte_get or byte_get_signed. If INC is true, PTR is
375 incremented after reading the value.
376 This macro cannot protect against PTR values derived from user input.
377 The C standard sections 6.5.6 and 6.5.8 say attempts to do so using
378 pointers is undefined behaviour. */
379 #define SAFE_BYTE_GET_INTERNAL(VAL, PTR, AMOUNT, END, FUNC, INC) \
382 size_t amount = (AMOUNT); \
383 if (sizeof (VAL) < amount) \
385 error (ngettext ("internal error: attempt to read %d byte " \
386 "of data in to %d sized variable", \
387 "internal error: attempt to read %d bytes " \
388 "of data in to %d sized variable", \
390 (int) amount, (int) sizeof (VAL)); \
391 amount = sizeof (VAL); \
393 if (ENABLE_CHECKING) \
394 assert ((PTR) <= (END)); \
395 size_t avail = (END) - (PTR); \
398 if (amount > avail) \
403 (VAL) = (FUNC) ((PTR), amount); \
409 #define SAFE_BYTE_GET(VAL, PTR, AMOUNT, END) \
410 SAFE_BYTE_GET_INTERNAL (VAL, PTR, AMOUNT, END, byte_get, false)
412 #define SAFE_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \
413 SAFE_BYTE_GET_INTERNAL (VAL, PTR, AMOUNT, END, byte_get, true)
415 #define SAFE_SIGNED_BYTE_GET(VAL, PTR, AMOUNT, END) \
416 SAFE_BYTE_GET_INTERNAL (VAL, PTR, AMOUNT, END, byte_get_signed, false)
418 #define SAFE_SIGNED_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \
419 SAFE_BYTE_GET_INTERNAL (VAL, PTR, AMOUNT, END, byte_get_signed, true)
421 typedef struct State_Machine_Registers
430 unsigned char op_index
;
431 unsigned char end_sequence
;
432 /* This variable hold the number of the last entry seen
433 in the File Table. */
434 unsigned int last_file_entry
;
437 static SMR state_machine_regs
;
440 reset_state_machine (int is_stmt
)
442 state_machine_regs
.address
= 0;
443 state_machine_regs
.view
= 0;
444 state_machine_regs
.op_index
= 0;
445 state_machine_regs
.file
= 1;
446 state_machine_regs
.line
= 1;
447 state_machine_regs
.column
= 0;
448 state_machine_regs
.is_stmt
= is_stmt
;
449 state_machine_regs
.basic_block
= 0;
450 state_machine_regs
.end_sequence
= 0;
451 state_machine_regs
.last_file_entry
= 0;
454 /* Handled an extend line op.
455 Returns the number of bytes read. */
458 process_extended_line_op (unsigned char * data
,
462 unsigned char op_code
;
463 size_t len
, header_len
;
465 unsigned char *orig_data
= data
;
468 READ_ULEB (len
, data
, end
);
469 header_len
= data
- orig_data
;
471 if (len
== 0 || data
>= end
|| len
> (size_t) (end
- data
))
473 warn (_("Badly formed extended line op encountered!\n"));
479 printf (_(" Extended opcode %d: "), op_code
);
483 case DW_LNE_end_sequence
:
484 printf (_("End of Sequence\n\n"));
485 reset_state_machine (is_stmt
);
488 case DW_LNE_set_address
:
489 /* PR 17512: file: 002-100480-0.004. */
492 warn (_("Length (%lu) of DW_LNE_set_address op is too long\n"),
493 (unsigned long) len
- 1);
497 SAFE_BYTE_GET (adr
, data
, len
- 1, end
);
498 printf (_("set Address to 0x%s\n"), dwarf_vmatoa ("x", adr
));
499 state_machine_regs
.address
= adr
;
500 state_machine_regs
.view
= 0;
501 state_machine_regs
.op_index
= 0;
504 case DW_LNE_define_file
:
505 printf (_("define new File Table entry\n"));
506 printf (_(" Entry\tDir\tTime\tSize\tName\n"));
507 printf (" %d\t", ++state_machine_regs
.last_file_entry
);
513 l
= strnlen ((char *) data
, end
- data
);
517 READ_ULEB (val
, data
, end
);
518 printf ("%s\t", dwarf_vmatoa ("u", val
));
519 READ_ULEB (val
, data
, end
);
520 printf ("%s\t", dwarf_vmatoa ("u", val
));
521 READ_ULEB (val
, data
, end
);
522 printf ("%s\t", dwarf_vmatoa ("u", val
));
523 printf ("%.*s\n\n", (int) l
, name
);
526 if (((size_t) (data
- orig_data
) != len
+ header_len
) || data
>= end
)
527 warn (_("DW_LNE_define_file: Bad opcode length\n"));
530 case DW_LNE_set_discriminator
:
531 READ_ULEB (val
, data
, end
);
532 printf (_("set Discriminator to %s\n"), dwarf_vmatoa ("u", val
));
536 case DW_LNE_HP_negate_is_UV_update
:
537 printf ("DW_LNE_HP_negate_is_UV_update\n");
539 case DW_LNE_HP_push_context
:
540 printf ("DW_LNE_HP_push_context\n");
542 case DW_LNE_HP_pop_context
:
543 printf ("DW_LNE_HP_pop_context\n");
545 case DW_LNE_HP_set_file_line_column
:
546 printf ("DW_LNE_HP_set_file_line_column\n");
548 case DW_LNE_HP_set_routine_name
:
549 printf ("DW_LNE_HP_set_routine_name\n");
551 case DW_LNE_HP_set_sequence
:
552 printf ("DW_LNE_HP_set_sequence\n");
554 case DW_LNE_HP_negate_post_semantics
:
555 printf ("DW_LNE_HP_negate_post_semantics\n");
557 case DW_LNE_HP_negate_function_exit
:
558 printf ("DW_LNE_HP_negate_function_exit\n");
560 case DW_LNE_HP_negate_front_end_logical
:
561 printf ("DW_LNE_HP_negate_front_end_logical\n");
563 case DW_LNE_HP_define_proc
:
564 printf ("DW_LNE_HP_define_proc\n");
566 case DW_LNE_HP_source_file_correlation
:
568 unsigned char *edata
= data
+ len
- 1;
570 printf ("DW_LNE_HP_source_file_correlation\n");
576 READ_ULEB (opc
, data
, edata
);
580 case DW_LNE_HP_SFC_formfeed
:
581 printf (" DW_LNE_HP_SFC_formfeed\n");
583 case DW_LNE_HP_SFC_set_listing_line
:
584 READ_ULEB (val
, data
, edata
);
585 printf (" DW_LNE_HP_SFC_set_listing_line (%s)\n",
586 dwarf_vmatoa ("u", val
));
588 case DW_LNE_HP_SFC_associate
:
589 printf (" DW_LNE_HP_SFC_associate ");
590 READ_ULEB (val
, data
, edata
);
591 printf ("(%s", dwarf_vmatoa ("u", val
));
592 READ_ULEB (val
, data
, edata
);
593 printf (",%s", dwarf_vmatoa ("u", val
));
594 READ_ULEB (val
, data
, edata
);
595 printf (",%s)\n", dwarf_vmatoa ("u", val
));
598 printf (_(" UNKNOWN DW_LNE_HP_SFC opcode (%u)\n"), opc
);
608 unsigned int rlen
= len
- 1;
610 if (op_code
>= DW_LNE_lo_user
611 /* The test against DW_LNW_hi_user is redundant due to
612 the limited range of the unsigned char data type used
614 /*&& op_code <= DW_LNE_hi_user*/)
615 printf (_("user defined: "));
617 printf (_("UNKNOWN: "));
618 printf (_("length %d ["), rlen
);
620 printf (" %02x", *data
++);
626 return len
+ header_len
;
629 static const unsigned char *
630 fetch_indirect_string (dwarf_vma offset
)
632 struct dwarf_section
*section
= &debug_displays
[str
].section
;
633 const unsigned char * ret
;
635 if (section
->start
== NULL
)
636 return (const unsigned char *) _("<no .debug_str section>");
638 if (offset
>= section
->size
)
640 warn (_("DW_FORM_strp offset too big: 0x%s\n"),
641 dwarf_vmatoa ("x", offset
));
642 return (const unsigned char *) _("<offset is too big>");
645 ret
= section
->start
+ offset
;
646 /* Unfortunately we cannot rely upon the .debug_str section ending with a
647 NUL byte. Since our caller is expecting to receive a well formed C
648 string we test for the lack of a terminating byte here. */
649 if (strnlen ((const char *) ret
, section
->size
- offset
)
650 == section
->size
- offset
)
651 ret
= (const unsigned char *)
652 _("<no NUL byte at end of .debug_str section>");
657 static const unsigned char *
658 fetch_indirect_line_string (dwarf_vma offset
)
660 struct dwarf_section
*section
= &debug_displays
[line_str
].section
;
661 const unsigned char * ret
;
663 if (section
->start
== NULL
)
664 return (const unsigned char *) _("<no .debug_line_str section>");
666 if (offset
>= section
->size
)
668 warn (_("DW_FORM_line_strp offset too big: 0x%s\n"),
669 dwarf_vmatoa ("x", offset
));
670 return (const unsigned char *) _("<offset is too big>");
673 ret
= section
->start
+ offset
;
674 /* Unfortunately we cannot rely upon the .debug_line_str section ending
675 with a NUL byte. Since our caller is expecting to receive a well formed
676 C string we test for the lack of a terminating byte here. */
677 if (strnlen ((const char *) ret
, section
->size
- offset
)
678 == section
->size
- offset
)
679 ret
= (const unsigned char *)
680 _("<no NUL byte at end of .debug_line_str section>");
686 fetch_indexed_string (dwarf_vma idx
, struct cu_tu_set
*this_set
,
687 dwarf_vma offset_size
, bool dwo
)
689 enum dwarf_section_display_enum str_sec_idx
= dwo
? str_dwo
: str
;
690 enum dwarf_section_display_enum idx_sec_idx
= dwo
? str_index_dwo
: str_index
;
691 struct dwarf_section
*index_section
= &debug_displays
[idx_sec_idx
].section
;
692 struct dwarf_section
*str_section
= &debug_displays
[str_sec_idx
].section
;
693 dwarf_vma index_offset
;
694 dwarf_vma str_offset
;
696 unsigned char *curr
= index_section
->start
;
697 unsigned char *end
= curr
+ index_section
->size
;
700 if (index_section
->start
== NULL
)
701 return (dwo
? _("<no .debug_str_offsets.dwo section>")
702 : _("<no .debug_str_offsets section>"));
704 if (str_section
->start
== NULL
)
705 return (dwo
? _("<no .debug_str.dwo section>")
706 : _("<no .debug_str section>"));
708 /* FIXME: We should cache the length... */
709 SAFE_BYTE_GET_AND_INC (length
, curr
, 4, end
);
710 if (length
== 0xffffffff)
712 if (offset_size
!= 8)
713 warn (_("Expected offset size of 8 but given %s"), dwarf_vmatoa ("x", offset_size
));
714 SAFE_BYTE_GET_AND_INC (length
, curr
, 8, end
);
716 else if (offset_size
!= 4)
718 warn (_("Expected offset size of 4 but given %s"), dwarf_vmatoa ("x", offset_size
));
723 /* This is probably an old style .debug_str_offset section which
724 just contains offsets and no header (and the first offset is 0). */
725 curr
= index_section
->start
;
726 length
= index_section
->size
;
730 /* Skip the version and padding bytes.
731 We assume that they are correct. */
742 && this_set
->section_sizes
[DW_SECT_STR_OFFSETS
] < length
)
743 length
= this_set
->section_sizes
[DW_SECT_STR_OFFSETS
];
745 if (length
> (dwarf_vma
) (end
- curr
))
747 warn (_("index table size too large for section %s vs %s\n"),
748 dwarf_vmatoa ("x", length
),
749 dwarf_vmatoa ("x", index_section
->size
));
753 if (length
< offset_size
)
755 warn (_("index table size %s is too small\n"),
756 dwarf_vmatoa ("x", length
));
757 return _("<table too small>");
761 index_offset
= idx
* offset_size
;
763 if (this_set
!= NULL
)
764 index_offset
+= this_set
->section_offsets
[DW_SECT_STR_OFFSETS
];
766 if (index_offset
>= length
767 || length
- index_offset
< offset_size
)
769 warn (_("DW_FORM_GNU_str_index offset too big: 0x%s vs 0x%s\n"),
770 dwarf_vmatoa ("x", index_offset
),
771 dwarf_vmatoa ("x", length
));
772 return _("<index offset is too big>");
775 str_offset
= byte_get (curr
+ index_offset
, offset_size
);
776 str_offset
-= str_section
->address
;
777 if (str_offset
>= str_section
->size
)
779 warn (_("DW_FORM_GNU_str_index indirect offset too big: 0x%s\n"),
780 dwarf_vmatoa ("x", str_offset
));
781 return _("<indirect index offset is too big>");
784 ret
= (const char *) str_section
->start
+ str_offset
;
785 /* Unfortunately we cannot rely upon str_section ending with a NUL byte.
786 Since our caller is expecting to receive a well formed C string we test
787 for the lack of a terminating byte here. */
788 if (strnlen (ret
, str_section
->size
- str_offset
)
789 == str_section
->size
- str_offset
)
790 ret
= (const char *) _("<no NUL byte at end of section>");
796 fetch_indexed_value (dwarf_vma offset
, dwarf_vma bytes
)
798 struct dwarf_section
*section
= &debug_displays
[debug_addr
].section
;
800 if (section
->start
== NULL
)
801 return (_("<no .debug_addr section>"));
803 if (offset
+ bytes
> section
->size
)
805 warn (_("Offset into section %s too big: 0x%s\n"),
806 section
->name
, dwarf_vmatoa ("x", offset
));
807 return "<offset too big>";
810 return dwarf_vmatoa ("x", byte_get (section
->start
+ offset
, bytes
));
814 /* FIXME: There are better and more efficient ways to handle
815 these structures. For now though, I just want something that
816 is simple to implement. */
817 /* Records a single attribute in an abbrev. */
818 typedef struct abbrev_attr
820 unsigned long attribute
;
822 bfd_signed_vma implicit_const
;
823 struct abbrev_attr
* next
;
827 /* Records a single abbrev. */
828 typedef struct abbrev_entry
830 unsigned long number
;
833 struct abbrev_attr
* first_attr
;
834 struct abbrev_attr
* last_attr
;
835 struct abbrev_entry
* next
;
839 /* Records a set of abbreviations. */
840 typedef struct abbrev_list
842 abbrev_entry
* first_abbrev
;
843 abbrev_entry
* last_abbrev
;
844 dwarf_vma abbrev_base
;
845 dwarf_vma abbrev_offset
;
846 struct abbrev_list
* next
;
847 unsigned char * start_of_next_abbrevs
;
851 /* Records all the abbrevs found so far. */
852 static struct abbrev_list
* abbrev_lists
= NULL
;
854 typedef struct abbrev_map
861 /* Maps between CU offsets and abbrev sets. */
862 static abbrev_map
* cu_abbrev_map
= NULL
;
863 static unsigned long num_abbrev_map_entries
= 0;
864 static unsigned long next_free_abbrev_map_entry
= 0;
866 #define INITIAL_NUM_ABBREV_MAP_ENTRIES 8
867 #define ABBREV_MAP_ENTRIES_INCREMENT 8
870 record_abbrev_list_for_cu (dwarf_vma start
, dwarf_vma end
, abbrev_list
* list
)
872 if (cu_abbrev_map
== NULL
)
874 num_abbrev_map_entries
= INITIAL_NUM_ABBREV_MAP_ENTRIES
;
875 cu_abbrev_map
= xmalloc (num_abbrev_map_entries
* sizeof (* cu_abbrev_map
));
877 else if (next_free_abbrev_map_entry
== num_abbrev_map_entries
)
879 num_abbrev_map_entries
+= ABBREV_MAP_ENTRIES_INCREMENT
;
880 cu_abbrev_map
= xrealloc (cu_abbrev_map
, num_abbrev_map_entries
* sizeof (* cu_abbrev_map
));
883 cu_abbrev_map
[next_free_abbrev_map_entry
].start
= start
;
884 cu_abbrev_map
[next_free_abbrev_map_entry
].end
= end
;
885 cu_abbrev_map
[next_free_abbrev_map_entry
].list
= list
;
886 next_free_abbrev_map_entry
++;
890 free_all_abbrevs (void)
894 for (list
= abbrev_lists
; list
!= NULL
;)
896 abbrev_list
* next
= list
->next
;
897 abbrev_entry
* abbrv
;
899 for (abbrv
= list
->first_abbrev
; abbrv
!= NULL
;)
901 abbrev_entry
* next_abbrev
= abbrv
->next
;
904 for (attr
= abbrv
->first_attr
; attr
;)
906 abbrev_attr
*next_attr
= attr
->next
;
924 new_abbrev_list (dwarf_vma abbrev_base
, dwarf_vma abbrev_offset
)
926 abbrev_list
* list
= (abbrev_list
*) xcalloc (sizeof * list
, 1);
928 list
->abbrev_base
= abbrev_base
;
929 list
->abbrev_offset
= abbrev_offset
;
931 list
->next
= abbrev_lists
;
938 find_abbrev_list_by_abbrev_offset (dwarf_vma abbrev_base
,
939 dwarf_vma abbrev_offset
)
943 for (list
= abbrev_lists
; list
!= NULL
; list
= list
->next
)
944 if (list
->abbrev_base
== abbrev_base
945 && list
->abbrev_offset
== abbrev_offset
)
951 /* Find the abbreviation map for the CU that includes OFFSET.
952 OFFSET is an absolute offset from the start of the .debug_info section. */
953 /* FIXME: This function is going to slow down readelf & objdump.
954 Consider using a better algorithm to mitigate this effect. */
957 find_abbrev_map_by_offset (dwarf_vma offset
)
961 for (i
= 0; i
< next_free_abbrev_map_entry
; i
++)
962 if (cu_abbrev_map
[i
].start
<= offset
963 && cu_abbrev_map
[i
].end
> offset
)
964 return cu_abbrev_map
+ i
;
970 add_abbrev (unsigned long number
,
975 abbrev_entry
* entry
;
977 entry
= (abbrev_entry
*) xmalloc (sizeof (*entry
));
979 entry
->number
= number
;
981 entry
->children
= children
;
982 entry
->first_attr
= NULL
;
983 entry
->last_attr
= NULL
;
986 assert (list
!= NULL
);
988 if (list
->first_abbrev
== NULL
)
989 list
->first_abbrev
= entry
;
991 list
->last_abbrev
->next
= entry
;
993 list
->last_abbrev
= entry
;
997 add_abbrev_attr (unsigned long attribute
,
999 bfd_signed_vma implicit_const
,
1004 attr
= (abbrev_attr
*) xmalloc (sizeof (*attr
));
1006 attr
->attribute
= attribute
;
1008 attr
->implicit_const
= implicit_const
;
1011 assert (list
!= NULL
&& list
->last_abbrev
!= NULL
);
1013 if (list
->last_abbrev
->first_attr
== NULL
)
1014 list
->last_abbrev
->first_attr
= attr
;
1016 list
->last_abbrev
->last_attr
->next
= attr
;
1018 list
->last_abbrev
->last_attr
= attr
;
1021 /* Processes the (partial) contents of a .debug_abbrev section.
1022 Returns NULL if the end of the section was encountered.
1023 Returns the address after the last byte read if the end of
1024 an abbreviation set was found. */
1026 static unsigned char *
1027 process_abbrev_set (struct dwarf_section
*section
,
1028 dwarf_vma abbrev_base
,
1029 dwarf_vma abbrev_size
,
1030 dwarf_vma abbrev_offset
,
1033 if (abbrev_base
>= section
->size
1034 || abbrev_size
> section
->size
- abbrev_base
)
1036 /* PR 17531: file:4bcd9ce9. */
1037 warn (_("Debug info is corrupted, abbrev size (%lx) is larger than "
1038 "abbrev section size (%lx)\n"),
1039 (unsigned long) (abbrev_base
+ abbrev_size
),
1040 (unsigned long) section
->size
);
1043 if (abbrev_offset
>= abbrev_size
)
1045 warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than "
1046 "abbrev section size (%lx)\n"),
1047 (unsigned long) abbrev_offset
,
1048 (unsigned long) abbrev_size
);
1052 unsigned char *start
= section
->start
+ abbrev_base
;
1053 unsigned char *end
= start
+ abbrev_size
;
1054 start
+= abbrev_offset
;
1057 unsigned long entry
;
1059 unsigned long attribute
;
1062 READ_ULEB (entry
, start
, end
);
1064 /* A single zero is supposed to end the set according
1065 to the standard. If there's more, then signal that to
1072 READ_ULEB (tag
, start
, end
);
1076 children
= *start
++;
1078 add_abbrev (entry
, tag
, children
, list
);
1083 /* Initialize it due to a false compiler warning. */
1084 bfd_signed_vma implicit_const
= -1;
1086 READ_ULEB (attribute
, start
, end
);
1090 READ_ULEB (form
, start
, end
);
1094 if (form
== DW_FORM_implicit_const
)
1096 READ_SLEB (implicit_const
, start
, end
);
1101 add_abbrev_attr (attribute
, form
, implicit_const
, list
);
1103 while (attribute
!= 0);
1106 /* Report the missing single zero which ends the section. */
1107 error (_(".debug_abbrev section not zero terminated\n"));
1113 get_TAG_name (unsigned long tag
)
1115 const char *name
= get_DW_TAG_name ((unsigned int) tag
);
1119 static char buffer
[100];
1121 if (tag
>= DW_TAG_lo_user
&& tag
<= DW_TAG_hi_user
)
1122 snprintf (buffer
, sizeof (buffer
), _("User TAG value: %#lx"), tag
);
1124 snprintf (buffer
, sizeof (buffer
), _("Unknown TAG value: %#lx"), tag
);
1132 get_FORM_name (unsigned long form
)
1137 return "DW_FORM value: 0";
1139 name
= get_DW_FORM_name (form
);
1142 static char buffer
[100];
1144 snprintf (buffer
, sizeof (buffer
), _("Unknown FORM value: %lx"), form
);
1152 get_IDX_name (unsigned long idx
)
1154 const char *name
= get_DW_IDX_name ((unsigned int) idx
);
1158 static char buffer
[100];
1160 snprintf (buffer
, sizeof (buffer
), _("Unknown IDX value: %lx"), idx
);
1167 static unsigned char *
1168 display_block (unsigned char *data
,
1170 const unsigned char * const end
, char delimiter
)
1174 printf (_("%c%s byte block: "), delimiter
, dwarf_vmatoa ("u", length
));
1176 return (unsigned char *) end
;
1178 maxlen
= (dwarf_vma
) (end
- data
);
1179 length
= length
> maxlen
? maxlen
: length
;
1182 printf ("%lx ", (unsigned long) byte_get (data
++, 1));
1188 decode_location_expression (unsigned char * data
,
1189 unsigned int pointer_size
,
1190 unsigned int offset_size
,
1193 dwarf_vma cu_offset
,
1194 struct dwarf_section
* section
)
1198 dwarf_signed_vma svalue
;
1199 unsigned char *end
= data
+ length
;
1200 int need_frame_base
= 0;
1209 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
1210 printf ("DW_OP_addr: %s", dwarf_vmatoa ("x", uvalue
));
1213 printf ("DW_OP_deref");
1216 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1217 printf ("DW_OP_const1u: %lu", (unsigned long) uvalue
);
1220 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 1, end
);
1221 printf ("DW_OP_const1s: %ld", (long) svalue
);
1224 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 2, end
);
1225 printf ("DW_OP_const2u: %lu", (unsigned long) uvalue
);
1228 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 2, end
);
1229 printf ("DW_OP_const2s: %ld", (long) svalue
);
1232 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
1233 printf ("DW_OP_const4u: %lu", (unsigned long) uvalue
);
1236 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 4, end
);
1237 printf ("DW_OP_const4s: %ld", (long) svalue
);
1240 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
1241 printf ("DW_OP_const8u: %lu ", (unsigned long) uvalue
);
1242 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
1243 printf ("%lu", (unsigned long) uvalue
);
1246 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 4, end
);
1247 printf ("DW_OP_const8s: %ld ", (long) svalue
);
1248 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 4, end
);
1249 printf ("%ld", (long) svalue
);
1252 READ_ULEB (uvalue
, data
, end
);
1253 printf ("DW_OP_constu: %s", dwarf_vmatoa ("u", uvalue
));
1256 READ_SLEB (svalue
, data
, end
);
1257 printf ("DW_OP_consts: %s", dwarf_vmatoa ("d", svalue
));
1260 printf ("DW_OP_dup");
1263 printf ("DW_OP_drop");
1266 printf ("DW_OP_over");
1269 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1270 printf ("DW_OP_pick: %ld", (unsigned long) uvalue
);
1273 printf ("DW_OP_swap");
1276 printf ("DW_OP_rot");
1279 printf ("DW_OP_xderef");
1282 printf ("DW_OP_abs");
1285 printf ("DW_OP_and");
1288 printf ("DW_OP_div");
1291 printf ("DW_OP_minus");
1294 printf ("DW_OP_mod");
1297 printf ("DW_OP_mul");
1300 printf ("DW_OP_neg");
1303 printf ("DW_OP_not");
1306 printf ("DW_OP_or");
1309 printf ("DW_OP_plus");
1311 case DW_OP_plus_uconst
:
1312 READ_ULEB (uvalue
, data
, end
);
1313 printf ("DW_OP_plus_uconst: %s", dwarf_vmatoa ("u", uvalue
));
1316 printf ("DW_OP_shl");
1319 printf ("DW_OP_shr");
1322 printf ("DW_OP_shra");
1325 printf ("DW_OP_xor");
1328 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 2, end
);
1329 printf ("DW_OP_bra: %ld", (long) svalue
);
1332 printf ("DW_OP_eq");
1335 printf ("DW_OP_ge");
1338 printf ("DW_OP_gt");
1341 printf ("DW_OP_le");
1344 printf ("DW_OP_lt");
1347 printf ("DW_OP_ne");
1350 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 2, end
);
1351 printf ("DW_OP_skip: %ld", (long) svalue
);
1386 printf ("DW_OP_lit%d", op
- DW_OP_lit0
);
1421 printf ("DW_OP_reg%d (%s)", op
- DW_OP_reg0
,
1422 regname (op
- DW_OP_reg0
, 1));
1457 READ_SLEB (svalue
, data
, end
);
1458 printf ("DW_OP_breg%d (%s): %s", op
- DW_OP_breg0
,
1459 regname (op
- DW_OP_breg0
, 1), dwarf_vmatoa ("d", svalue
));
1463 READ_ULEB (uvalue
, data
, end
);
1464 printf ("DW_OP_regx: %s (%s)",
1465 dwarf_vmatoa ("u", uvalue
), regname (uvalue
, 1));
1468 need_frame_base
= 1;
1469 READ_SLEB (svalue
, data
, end
);
1470 printf ("DW_OP_fbreg: %s", dwarf_vmatoa ("d", svalue
));
1473 READ_ULEB (uvalue
, data
, end
);
1474 READ_SLEB (svalue
, data
, end
);
1475 printf ("DW_OP_bregx: %s (%s) %s",
1476 dwarf_vmatoa ("u", uvalue
), regname (uvalue
, 1),
1477 dwarf_vmatoa ("d", svalue
));
1480 READ_ULEB (uvalue
, data
, end
);
1481 printf ("DW_OP_piece: %s", dwarf_vmatoa ("u", uvalue
));
1483 case DW_OP_deref_size
:
1484 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1485 printf ("DW_OP_deref_size: %ld", (long) uvalue
);
1487 case DW_OP_xderef_size
:
1488 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1489 printf ("DW_OP_xderef_size: %ld", (long) uvalue
);
1492 printf ("DW_OP_nop");
1495 /* DWARF 3 extensions. */
1496 case DW_OP_push_object_address
:
1497 printf ("DW_OP_push_object_address");
1500 /* FIXME: Strictly speaking for 64-bit DWARF3 files
1501 this ought to be an 8-byte wide computation. */
1502 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 2, end
);
1503 printf ("DW_OP_call2: <0x%s>",
1504 dwarf_vmatoa ("x", svalue
+ cu_offset
));
1507 /* FIXME: Strictly speaking for 64-bit DWARF3 files
1508 this ought to be an 8-byte wide computation. */
1509 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 4, end
);
1510 printf ("DW_OP_call4: <0x%s>",
1511 dwarf_vmatoa ("x", svalue
+ cu_offset
));
1513 case DW_OP_call_ref
:
1514 /* FIXME: Strictly speaking for 64-bit DWARF3 files
1515 this ought to be an 8-byte wide computation. */
1516 if (dwarf_version
== -1)
1518 printf (_("(DW_OP_call_ref in frame info)"));
1519 /* No way to tell where the next op is, so just bail. */
1520 return need_frame_base
;
1522 if (dwarf_version
== 2)
1524 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
1528 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
1530 printf ("DW_OP_call_ref: <0x%s>", dwarf_vmatoa ("x", uvalue
));
1532 case DW_OP_form_tls_address
:
1533 printf ("DW_OP_form_tls_address");
1535 case DW_OP_call_frame_cfa
:
1536 printf ("DW_OP_call_frame_cfa");
1538 case DW_OP_bit_piece
:
1539 printf ("DW_OP_bit_piece: ");
1540 READ_ULEB (uvalue
, data
, end
);
1541 printf (_("size: %s "), dwarf_vmatoa ("u", uvalue
));
1542 READ_ULEB (uvalue
, data
, end
);
1543 printf (_("offset: %s "), dwarf_vmatoa ("u", uvalue
));
1546 /* DWARF 4 extensions. */
1547 case DW_OP_stack_value
:
1548 printf ("DW_OP_stack_value");
1551 case DW_OP_implicit_value
:
1552 printf ("DW_OP_implicit_value");
1553 READ_ULEB (uvalue
, data
, end
);
1554 data
= display_block (data
, uvalue
, end
, ' ');
1557 /* GNU extensions. */
1558 case DW_OP_GNU_push_tls_address
:
1559 printf (_("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown"));
1561 case DW_OP_GNU_uninit
:
1562 printf ("DW_OP_GNU_uninit");
1563 /* FIXME: Is there data associated with this OP ? */
1565 case DW_OP_GNU_encoded_addr
:
1572 addr
= get_encoded_value (&data
, encoding
, section
, end
);
1574 printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding
);
1575 print_dwarf_vma (addr
, pointer_size
);
1578 case DW_OP_implicit_pointer
:
1579 case DW_OP_GNU_implicit_pointer
:
1580 /* FIXME: Strictly speaking for 64-bit DWARF3 files
1581 this ought to be an 8-byte wide computation. */
1582 if (dwarf_version
== -1)
1584 printf (_("(%s in frame info)"),
1585 (op
== DW_OP_implicit_pointer
1586 ? "DW_OP_implicit_pointer"
1587 : "DW_OP_GNU_implicit_pointer"));
1588 /* No way to tell where the next op is, so just bail. */
1589 return need_frame_base
;
1591 if (dwarf_version
== 2)
1593 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
1597 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
1599 READ_SLEB (svalue
, data
, end
);
1600 printf ("%s: <0x%s> %s",
1601 (op
== DW_OP_implicit_pointer
1602 ? "DW_OP_implicit_pointer" : "DW_OP_GNU_implicit_pointer"),
1603 dwarf_vmatoa ("x", uvalue
),
1604 dwarf_vmatoa ("d", svalue
));
1606 case DW_OP_entry_value
:
1607 case DW_OP_GNU_entry_value
:
1608 READ_ULEB (uvalue
, data
, end
);
1609 /* PR 17531: file: 0cc9cd00. */
1610 if (uvalue
> (dwarf_vma
) (end
- data
))
1611 uvalue
= end
- data
;
1612 printf ("%s: (", (op
== DW_OP_entry_value
? "DW_OP_entry_value"
1613 : "DW_OP_GNU_entry_value"));
1614 if (decode_location_expression (data
, pointer_size
, offset_size
,
1615 dwarf_version
, uvalue
,
1616 cu_offset
, section
))
1617 need_frame_base
= 1;
1621 case DW_OP_const_type
:
1622 case DW_OP_GNU_const_type
:
1623 READ_ULEB (uvalue
, data
, end
);
1624 printf ("%s: <0x%s> ",
1625 (op
== DW_OP_const_type
? "DW_OP_const_type"
1626 : "DW_OP_GNU_const_type"),
1627 dwarf_vmatoa ("x", cu_offset
+ uvalue
));
1628 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1629 data
= display_block (data
, uvalue
, end
, ' ');
1631 case DW_OP_regval_type
:
1632 case DW_OP_GNU_regval_type
:
1633 READ_ULEB (uvalue
, data
, end
);
1634 printf ("%s: %s (%s)",
1635 (op
== DW_OP_regval_type
? "DW_OP_regval_type"
1636 : "DW_OP_GNU_regval_type"),
1637 dwarf_vmatoa ("u", uvalue
), regname (uvalue
, 1));
1638 READ_ULEB (uvalue
, data
, end
);
1639 printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset
+ uvalue
));
1641 case DW_OP_deref_type
:
1642 case DW_OP_GNU_deref_type
:
1643 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1645 (op
== DW_OP_deref_type
? "DW_OP_deref_type"
1646 : "DW_OP_GNU_deref_type"),
1648 READ_ULEB (uvalue
, data
, end
);
1649 printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset
+ uvalue
));
1652 case DW_OP_GNU_convert
:
1653 READ_ULEB (uvalue
, data
, end
);
1654 printf ("%s <0x%s>",
1655 (op
== DW_OP_convert
? "DW_OP_convert" : "DW_OP_GNU_convert"),
1656 dwarf_vmatoa ("x", uvalue
? cu_offset
+ uvalue
: 0));
1658 case DW_OP_reinterpret
:
1659 case DW_OP_GNU_reinterpret
:
1660 READ_ULEB (uvalue
, data
, end
);
1661 printf ("%s <0x%s>",
1662 (op
== DW_OP_reinterpret
? "DW_OP_reinterpret"
1663 : "DW_OP_GNU_reinterpret"),
1664 dwarf_vmatoa ("x", uvalue
? cu_offset
+ uvalue
: 0));
1666 case DW_OP_GNU_parameter_ref
:
1667 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
1668 printf ("DW_OP_GNU_parameter_ref: <0x%s>",
1669 dwarf_vmatoa ("x", cu_offset
+ uvalue
));
1671 case DW_OP_GNU_addr_index
:
1672 READ_ULEB (uvalue
, data
, end
);
1673 printf ("DW_OP_GNU_addr_index <0x%s>", dwarf_vmatoa ("x", uvalue
));
1675 case DW_OP_GNU_const_index
:
1676 READ_ULEB (uvalue
, data
, end
);
1677 printf ("DW_OP_GNU_const_index <0x%s>", dwarf_vmatoa ("x", uvalue
));
1679 case DW_OP_GNU_variable_value
:
1680 /* FIXME: Strictly speaking for 64-bit DWARF3 files
1681 this ought to be an 8-byte wide computation. */
1682 if (dwarf_version
== -1)
1684 printf (_("(DW_OP_GNU_variable_value in frame info)"));
1685 /* No way to tell where the next op is, so just bail. */
1686 return need_frame_base
;
1688 if (dwarf_version
== 2)
1690 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
1694 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
1696 printf ("DW_OP_GNU_variable_value: <0x%s>", dwarf_vmatoa ("x", uvalue
));
1699 /* HP extensions. */
1700 case DW_OP_HP_is_value
:
1701 printf ("DW_OP_HP_is_value");
1702 /* FIXME: Is there data associated with this OP ? */
1704 case DW_OP_HP_fltconst4
:
1705 printf ("DW_OP_HP_fltconst4");
1706 /* FIXME: Is there data associated with this OP ? */
1708 case DW_OP_HP_fltconst8
:
1709 printf ("DW_OP_HP_fltconst8");
1710 /* FIXME: Is there data associated with this OP ? */
1712 case DW_OP_HP_mod_range
:
1713 printf ("DW_OP_HP_mod_range");
1714 /* FIXME: Is there data associated with this OP ? */
1716 case DW_OP_HP_unmod_range
:
1717 printf ("DW_OP_HP_unmod_range");
1718 /* FIXME: Is there data associated with this OP ? */
1721 printf ("DW_OP_HP_tls");
1722 /* FIXME: Is there data associated with this OP ? */
1725 /* PGI (STMicroelectronics) extensions. */
1726 case DW_OP_PGI_omp_thread_num
:
1727 /* Pushes the thread number for the current thread as it would be
1728 returned by the standard OpenMP library function:
1729 omp_get_thread_num(). The "current thread" is the thread for
1730 which the expression is being evaluated. */
1731 printf ("DW_OP_PGI_omp_thread_num");
1735 if (op
>= DW_OP_lo_user
1736 && op
<= DW_OP_hi_user
)
1737 printf (_("(User defined location op 0x%x)"), op
);
1739 printf (_("(Unknown location op 0x%x)"), op
);
1740 /* No way to tell where the next op is, so just bail. */
1741 return need_frame_base
;
1744 /* Separate the ops. */
1749 return need_frame_base
;
1752 /* Find the CU or TU set corresponding to the given CU_OFFSET.
1753 This is used for DWARF package files. */
1755 static struct cu_tu_set
*
1756 find_cu_tu_set_v2 (dwarf_vma cu_offset
, int do_types
)
1758 struct cu_tu_set
*p
;
1760 unsigned int dw_sect
;
1766 dw_sect
= DW_SECT_TYPES
;
1772 dw_sect
= DW_SECT_INFO
;
1776 if (p
->section_offsets
[dw_sect
] == cu_offset
)
1785 fetch_alt_indirect_string (dwarf_vma offset
)
1789 if (! do_follow_links
)
1792 if (first_separate_info
== NULL
)
1793 return _("<no links available>");
1795 for (i
= first_separate_info
; i
!= NULL
; i
= i
->next
)
1797 struct dwarf_section
* section
;
1800 if (! load_debug_section (separate_debug_str
, i
->handle
))
1803 section
= &debug_displays
[separate_debug_str
].section
;
1805 if (section
->start
== NULL
)
1808 if (offset
>= section
->size
)
1811 ret
= (const char *) (section
->start
+ offset
);
1812 /* Unfortunately we cannot rely upon the .debug_str section ending with a
1813 NUL byte. Since our caller is expecting to receive a well formed C
1814 string we test for the lack of a terminating byte here. */
1815 if (strnlen ((const char *) ret
, section
->size
- offset
)
1816 == section
->size
- offset
)
1817 return _("<no NUL byte at end of alt .debug_str section>");
1822 warn (_("DW_FORM_GNU_strp_alt offset (%s) too big or no string sections available\n"),
1823 dwarf_vmatoa ("x", offset
));
1824 return _("<offset is too big>");
1828 get_AT_name (unsigned long attribute
)
1833 return "DW_AT value: 0";
1835 /* One value is shared by the MIPS and HP extensions: */
1836 if (attribute
== DW_AT_MIPS_fde
)
1837 return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable";
1839 name
= get_DW_AT_name (attribute
);
1843 static char buffer
[100];
1845 snprintf (buffer
, sizeof (buffer
), _("Unknown AT value: %lx"),
1854 add_dwo_info (const char * value
, dwarf_vma cu_offset
, dwo_type type
)
1856 dwo_info
* dwinfo
= xmalloc (sizeof * dwinfo
);
1858 dwinfo
->type
= type
;
1859 dwinfo
->value
= value
;
1860 dwinfo
->cu_offset
= cu_offset
;
1861 dwinfo
->next
= first_dwo_info
;
1862 first_dwo_info
= dwinfo
;
1866 add_dwo_name (const char * name
, dwarf_vma cu_offset
)
1868 add_dwo_info (name
, cu_offset
, DWO_NAME
);
1872 add_dwo_dir (const char * dir
, dwarf_vma cu_offset
)
1874 add_dwo_info (dir
, cu_offset
, DWO_DIR
);
1878 add_dwo_id (const char * id
, dwarf_vma cu_offset
)
1880 add_dwo_info (id
, cu_offset
, DWO_ID
);
1884 free_dwo_info (void)
1889 for (dwinfo
= first_dwo_info
; dwinfo
!= NULL
; dwinfo
= next
)
1891 next
= dwinfo
->next
;
1894 first_dwo_info
= NULL
;
1897 /* Ensure that START + UVALUE is less than END.
1898 Return an adjusted UVALUE if necessary to ensure this relationship. */
1900 static inline dwarf_vma
1901 check_uvalue (const unsigned char * start
,
1903 const unsigned char * end
)
1905 dwarf_vma max_uvalue
= end
- start
;
1907 /* See PR 17512: file: 008-103549-0.001:0.1.
1908 and PR 24829 for examples of where these tests are triggered. */
1909 if (uvalue
> max_uvalue
)
1911 warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue
);
1912 uvalue
= max_uvalue
;
1918 static unsigned char *
1919 skip_attr_bytes (unsigned long form
,
1920 unsigned char *data
,
1922 dwarf_vma pointer_size
,
1923 dwarf_vma offset_size
,
1925 dwarf_vma
*value_return
)
1927 dwarf_signed_vma svalue
;
1928 dwarf_vma uvalue
= 0;
1935 case DW_FORM_ref_addr
:
1936 if (dwarf_version
== 2)
1937 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
1938 else if (dwarf_version
> 2)
1939 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
1945 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
1949 case DW_FORM_line_strp
:
1950 case DW_FORM_sec_offset
:
1951 case DW_FORM_GNU_ref_alt
:
1952 case DW_FORM_GNU_strp_alt
:
1953 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
1956 case DW_FORM_flag_present
:
1964 case DW_FORM_addrx1
:
1965 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1969 case DW_FORM_addrx3
:
1970 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 3, end
);
1976 case DW_FORM_addrx2
:
1977 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 2, end
);
1983 case DW_FORM_addrx4
:
1984 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
1988 READ_SLEB (svalue
, data
, end
);
1992 case DW_FORM_ref_udata
:
1994 case DW_FORM_GNU_str_index
:
1996 case DW_FORM_GNU_addr_index
:
1998 READ_ULEB (uvalue
, data
, end
);
2002 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 8, end
);
2006 case DW_FORM_ref_sig8
:
2010 case DW_FORM_data16
:
2014 case DW_FORM_string
:
2015 inc
= strnlen ((char *) data
, end
- data
) + 1;
2019 case DW_FORM_exprloc
:
2020 READ_ULEB (uvalue
, data
, end
);
2024 case DW_FORM_block1
:
2025 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
2029 case DW_FORM_block2
:
2030 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 2, end
);
2034 case DW_FORM_block4
:
2035 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
2039 case DW_FORM_indirect
:
2040 READ_ULEB (form
, data
, end
);
2041 if (form
== DW_FORM_implicit_const
)
2042 SKIP_ULEB (data
, end
);
2043 return skip_attr_bytes (form
, data
, end
, pointer_size
, offset_size
,
2044 dwarf_version
, value_return
);
2050 * value_return
= uvalue
;
2051 if (inc
<= (dwarf_vma
) (end
- data
))
2058 /* Given form FORM with value UVALUE, locate and return the abbreviation
2059 associated with it. */
2061 static abbrev_entry
*
2062 get_type_abbrev_from_form (unsigned long form
,
2063 unsigned long uvalue
,
2064 dwarf_vma cu_offset
,
2065 const struct dwarf_section
* section
,
2066 unsigned long * abbrev_num_return
,
2067 unsigned char ** data_return
,
2068 unsigned long * cu_offset_return
)
2070 unsigned long abbrev_number
;
2072 abbrev_entry
* entry
;
2073 unsigned char * data
;
2075 if (abbrev_num_return
!= NULL
)
2076 * abbrev_num_return
= 0;
2077 if (data_return
!= NULL
)
2078 * data_return
= NULL
;
2082 case DW_FORM_GNU_ref_alt
:
2083 case DW_FORM_ref_sig8
:
2084 /* FIXME: We are unable to handle this form at the moment. */
2087 case DW_FORM_ref_addr
:
2088 if (uvalue
>= section
->size
)
2090 warn (_("Unable to resolve ref_addr form: uvalue %lx > section size %lx (%s)\n"),
2091 uvalue
, (long) section
->size
, section
->name
);
2096 case DW_FORM_ref_sup4
:
2097 case DW_FORM_ref_sup8
:
2104 case DW_FORM_ref_udata
:
2105 if (uvalue
+ cu_offset
> section
->size
)
2107 warn (_("Unable to resolve ref form: uvalue %lx + cu_offset %lx > section size %lx\n"),
2108 uvalue
, (long) cu_offset
, (long) section
->size
);
2111 uvalue
+= cu_offset
;
2114 /* FIXME: Are there other DW_FORMs that can be used by types ? */
2117 warn (_("Unexpected form %lx encountered whilst finding abbreviation for type\n"), form
);
2121 data
= (unsigned char *) section
->start
+ uvalue
;
2122 map
= find_abbrev_map_by_offset (uvalue
);
2126 warn (_("Unable to find abbreviations for CU offset %#lx\n"), uvalue
);
2129 if (map
->list
== NULL
)
2131 warn (_("Empty abbreviation list encountered for CU offset %lx\n"), uvalue
);
2135 if (cu_offset_return
!= NULL
)
2137 if (form
== DW_FORM_ref_addr
)
2138 * cu_offset_return
= map
->start
;
2140 * cu_offset_return
= cu_offset
;
2143 READ_ULEB (abbrev_number
, data
, section
->start
+ section
->size
);
2145 for (entry
= map
->list
->first_abbrev
; entry
!= NULL
; entry
= entry
->next
)
2146 if (entry
->number
== abbrev_number
)
2149 if (abbrev_num_return
!= NULL
)
2150 * abbrev_num_return
= abbrev_number
;
2152 if (data_return
!= NULL
)
2153 * data_return
= data
;
2156 warn (_("Unable to find entry for abbreviation %lu\n"), abbrev_number
);
2161 /* Return IS_SIGNED set to TRUE if the type using abbreviation ENTRY
2162 can be determined to be a signed type. The data for ENTRY can be
2163 found starting at DATA. */
2166 get_type_signedness (abbrev_entry
*entry
,
2167 const struct dwarf_section
*section
,
2168 unsigned char *data
,
2170 dwarf_vma cu_offset
,
2171 dwarf_vma pointer_size
,
2172 dwarf_vma offset_size
,
2175 unsigned int nesting
)
2179 * is_signed
= false;
2181 #define MAX_NESTING 20
2182 if (nesting
> MAX_NESTING
)
2184 /* FIXME: Warn - or is this expected ?
2185 NB/ We need to avoid infinite recursion. */
2189 for (attr
= entry
->first_attr
;
2190 attr
!= NULL
&& attr
->attribute
;
2193 unsigned char * orig_data
= data
;
2194 dwarf_vma uvalue
= 0;
2196 data
= skip_attr_bytes (attr
->form
, data
, end
, pointer_size
,
2197 offset_size
, dwarf_version
, & uvalue
);
2201 switch (attr
->attribute
)
2203 case DW_AT_linkage_name
:
2207 if (attr
->form
== DW_FORM_strp
)
2208 printf (", %s", fetch_indirect_string (uvalue
));
2209 else if (attr
->form
== DW_FORM_string
)
2210 printf (", %s", orig_data
);
2217 abbrev_entry
* type_abbrev
;
2218 unsigned char * type_data
;
2219 unsigned long type_cu_offset
;
2221 type_abbrev
= get_type_abbrev_from_form (attr
->form
,
2225 NULL
/* abbrev num return */,
2228 if (type_abbrev
== NULL
)
2231 get_type_signedness (type_abbrev
, section
, type_data
, end
, type_cu_offset
,
2232 pointer_size
, offset_size
, dwarf_version
,
2233 is_signed
, nesting
+ 1);
2237 case DW_AT_encoding
:
2238 /* Determine signness. */
2241 case DW_ATE_address
:
2242 /* FIXME - some architectures have signed addresses. */
2243 case DW_ATE_boolean
:
2244 case DW_ATE_unsigned
:
2245 case DW_ATE_unsigned_char
:
2246 case DW_ATE_unsigned_fixed
:
2247 * is_signed
= false;
2251 case DW_ATE_complex_float
:
2254 case DW_ATE_signed_char
:
2255 case DW_ATE_imaginary_float
:
2256 case DW_ATE_decimal_float
:
2257 case DW_ATE_signed_fixed
:
2267 read_and_print_leb128 (unsigned char *data
,
2268 unsigned int *bytes_read
,
2269 unsigned const char *end
,
2273 dwarf_vma val
= read_leb128 (data
, end
, is_signed
, bytes_read
, &status
);
2275 report_leb_status (status
, __FILE__
, __LINE__
);
2277 printf ("%s", dwarf_vmatoa (is_signed
? "d" : "u", val
));
2281 display_discr_list (unsigned long form
,
2283 unsigned char * data
,
2284 unsigned const char * end
,
2289 printf ("[default]");
2296 case DW_FORM_block1
:
2297 case DW_FORM_block2
:
2298 case DW_FORM_block4
:
2299 /* Move data pointer back to the start of the byte array. */
2303 printf ("<corrupt>\n");
2304 warn (_("corrupt discr_list - not using a block form\n"));
2310 printf ("<corrupt>\n");
2311 warn (_("corrupt discr_list - block not long enough\n"));
2316 (level
> 0 && level
<= MAX_CU_NESTING
)
2317 ? level_type_signed
[level
- 1] : false;
2322 unsigned char discriminant
;
2323 unsigned int bytes_read
;
2325 SAFE_BYTE_GET_AND_INC (discriminant
, data
, 1, end
);
2328 assert (uvalue
> 0);
2329 switch (discriminant
)
2333 read_and_print_leb128 (data
, & bytes_read
, end
, is_signed
);
2334 assert (bytes_read
<= uvalue
&& bytes_read
> 0);
2335 uvalue
-= bytes_read
;
2341 read_and_print_leb128 (data
, & bytes_read
, end
, is_signed
);
2342 assert (bytes_read
<= uvalue
&& bytes_read
> 0);
2343 uvalue
-= bytes_read
;
2347 read_and_print_leb128 (data
, & bytes_read
, end
, is_signed
);
2348 assert (bytes_read
<= uvalue
&& bytes_read
> 0);
2349 uvalue
-= bytes_read
;
2354 printf ("<corrupt>\n");
2355 warn (_("corrupt discr_list - unrecognized discriminant byte %#x\n"),
2365 printf (")(signed)");
2367 printf (")(unsigned)");
2370 static unsigned char *
2371 read_and_display_attr_value (unsigned long attribute
,
2373 dwarf_signed_vma implicit_const
,
2374 unsigned char * start
,
2375 unsigned char * data
,
2376 unsigned char * end
,
2377 dwarf_vma cu_offset
,
2378 dwarf_vma pointer_size
,
2379 dwarf_vma offset_size
,
2381 debug_info
* debug_info_p
,
2383 struct dwarf_section
* section
,
2384 struct cu_tu_set
* this_set
,
2388 dwarf_signed_vma svalue
;
2389 dwarf_vma uvalue
= 0;
2390 dwarf_vma uvalue_hi
= 0;
2391 unsigned char *block_start
= NULL
;
2392 unsigned char *orig_data
= data
;
2394 if (data
> end
|| (data
== end
&& form
!= DW_FORM_flag_present
))
2396 warn (_("Corrupt attribute\n"));
2400 if (do_wide
&& ! do_loc
)
2402 /* PR 26847: Display the name of the form. */
2403 const char * name
= get_FORM_name (form
);
2405 /* For convenience we skip the DW_FORM_ prefix to the name. */
2407 name
+= 8; /* strlen ("DW_FORM_") */
2408 printf ("%c(%s)", delimiter
, name
);
2416 case DW_FORM_ref_addr
:
2417 if (dwarf_version
== 2)
2418 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
2419 else if (dwarf_version
> 2)
2420 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
2422 error (_("Internal error: DW_FORM_ref_addr is not supported in DWARF version 1.\n"));
2426 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
2429 case DW_FORM_strp_sup
:
2431 case DW_FORM_line_strp
:
2432 case DW_FORM_sec_offset
:
2433 case DW_FORM_GNU_ref_alt
:
2434 case DW_FORM_GNU_strp_alt
:
2435 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
2438 case DW_FORM_flag_present
:
2446 case DW_FORM_addrx1
:
2447 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
2453 case DW_FORM_addrx2
:
2454 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 2, end
);
2458 case DW_FORM_addrx3
:
2459 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 3, end
);
2462 case DW_FORM_ref_sup4
:
2466 case DW_FORM_addrx4
:
2467 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
2470 case DW_FORM_ref_sup8
:
2473 case DW_FORM_ref_sig8
:
2474 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 8, end
);
2477 case DW_FORM_data16
:
2478 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 8, end
);
2479 SAFE_BYTE_GET_AND_INC (uvalue_hi
, data
, 8, end
);
2480 if (byte_get
!= byte_get_little_endian
)
2482 dwarf_vma utmp
= uvalue
;
2489 READ_SLEB (svalue
, data
, end
);
2493 case DW_FORM_GNU_str_index
:
2495 case DW_FORM_ref_udata
:
2497 case DW_FORM_GNU_addr_index
:
2499 READ_ULEB (uvalue
, data
, end
);
2502 case DW_FORM_indirect
:
2503 READ_ULEB (form
, data
, end
);
2505 printf ("%c%s", delimiter
, get_FORM_name (form
));
2506 if (form
== DW_FORM_implicit_const
)
2507 READ_SLEB (implicit_const
, data
, end
);
2508 return read_and_display_attr_value (attribute
, form
, implicit_const
,
2510 cu_offset
, pointer_size
,
2511 offset_size
, dwarf_version
,
2512 debug_info_p
, do_loc
,
2513 section
, this_set
, delimiter
, level
);
2518 case DW_FORM_ref_addr
:
2520 printf ("%c<0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
));
2523 case DW_FORM_GNU_ref_alt
:
2527 /* We have already printed the form name. */
2528 printf ("%c<0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
));
2530 printf ("%c<alt 0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
));
2532 /* FIXME: Follow the reference... */
2538 case DW_FORM_ref_sup4
:
2539 case DW_FORM_ref_udata
:
2541 printf ("%c<0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
+ cu_offset
));
2546 case DW_FORM_sec_offset
:
2548 printf ("%c0x%s", delimiter
, dwarf_vmatoa ("x", uvalue
));
2551 case DW_FORM_flag_present
:
2558 printf ("%c%s", delimiter
, dwarf_vmatoa ("d", uvalue
));
2561 case DW_FORM_implicit_const
:
2563 printf ("%c%s", delimiter
, dwarf_vmatoa ("d", implicit_const
));
2566 case DW_FORM_ref_sup8
:
2571 dwarf_vma utmp
= uvalue
;
2572 if (form
== DW_FORM_ref8
)
2574 printf ("%c0x%s", delimiter
, dwarf_vmatoa ("x", utmp
));
2578 case DW_FORM_data16
:
2581 uvalue_hi
== 0 ? "" : dwarf_vmatoa ("x", uvalue_hi
),
2582 dwarf_vmatoa_1 ("x", uvalue
, uvalue_hi
== 0 ? 0 : 8));
2585 case DW_FORM_string
:
2587 printf ("%c%.*s", delimiter
, (int) (end
- data
), data
);
2588 data
+= strnlen ((char *) data
, end
- data
);
2594 case DW_FORM_exprloc
:
2595 READ_ULEB (uvalue
, data
, end
);
2598 if (block_start
>= end
)
2600 warn (_("Block ends prematurely\n"));
2605 uvalue
= check_uvalue (block_start
, uvalue
, end
);
2608 data
= block_start
+ uvalue
;
2610 data
= display_block (block_start
, uvalue
, end
, delimiter
);
2613 case DW_FORM_block1
:
2614 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
2617 case DW_FORM_block2
:
2618 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 2, end
);
2621 case DW_FORM_block4
:
2622 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
2629 /* We have already displayed the form name. */
2630 printf (_("%c(offset: 0x%s): %s"), delimiter
,
2631 dwarf_vmatoa ("x", uvalue
),
2632 fetch_indirect_string (uvalue
));
2634 printf (_("%c(indirect string, offset: 0x%s): %s"), delimiter
,
2635 dwarf_vmatoa ("x", uvalue
),
2636 fetch_indirect_string (uvalue
));
2640 case DW_FORM_line_strp
:
2644 /* We have already displayed the form name. */
2645 printf (_("%c(offset: 0x%s): %s"), delimiter
,
2646 dwarf_vmatoa ("x", uvalue
),
2647 fetch_indirect_line_string (uvalue
));
2649 printf (_("%c(indirect line string, offset: 0x%s): %s"), delimiter
,
2650 dwarf_vmatoa ("x", uvalue
),
2651 fetch_indirect_line_string (uvalue
));
2655 case DW_FORM_GNU_str_index
:
2663 const char *suffix
= strrchr (section
->name
, '.');
2664 bool dwo
= suffix
&& strcmp (suffix
, ".dwo") == 0;
2667 /* We have already displayed the form name. */
2668 printf (_("%c(offset: 0x%s): %s"), delimiter
,
2669 dwarf_vmatoa ("x", uvalue
),
2670 fetch_indexed_string (uvalue
, this_set
, offset_size
, dwo
));
2672 printf (_("%c(indexed string: 0x%s): %s"), delimiter
,
2673 dwarf_vmatoa ("x", uvalue
),
2674 fetch_indexed_string (uvalue
, this_set
, offset_size
, dwo
));
2678 case DW_FORM_GNU_strp_alt
:
2682 /* We have already displayed the form name. */
2683 printf (_("%c(offset: 0x%s) %s"), delimiter
,
2684 dwarf_vmatoa ("x", uvalue
),
2685 fetch_alt_indirect_string (uvalue
));
2687 printf (_("%c(alt indirect string, offset: 0x%s) %s"), delimiter
,
2688 dwarf_vmatoa ("x", uvalue
),
2689 fetch_alt_indirect_string (uvalue
));
2693 case DW_FORM_indirect
:
2694 /* Handled above. */
2697 case DW_FORM_ref_sig8
:
2699 printf ("%c%s: 0x%s", delimiter
, do_wide
? "" : "signature",
2700 dwarf_vmatoa ("x", uvalue
));
2703 case DW_FORM_GNU_addr_index
:
2705 case DW_FORM_addrx1
:
2706 case DW_FORM_addrx2
:
2707 case DW_FORM_addrx3
:
2708 case DW_FORM_addrx4
:
2714 if (debug_info_p
== NULL
)
2716 else if (debug_info_p
->addr_base
== DEBUG_INFO_UNAVAILABLE
)
2719 base
= debug_info_p
->addr_base
;
2721 offset
= base
+ uvalue
* pointer_size
;
2724 /* We have already displayed the form name. */
2725 printf (_("%c(index: 0x%s): %s"), delimiter
,
2726 dwarf_vmatoa ("x", uvalue
),
2727 fetch_indexed_value (offset
, pointer_size
));
2729 printf (_("%c(addr_index: 0x%s): %s"), delimiter
,
2730 dwarf_vmatoa ("x", uvalue
),
2731 fetch_indexed_value (offset
, pointer_size
));
2735 case DW_FORM_strp_sup
:
2737 printf ("%c<0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
+ cu_offset
));
2741 warn (_("Unrecognized form: 0x%lx\n"), form
);
2745 if ((do_loc
|| do_debug_loc
|| do_debug_ranges
)
2746 && num_debug_info_entries
== 0
2747 && debug_info_p
!= NULL
)
2751 case DW_AT_frame_base
:
2752 have_frame_base
= 1;
2754 case DW_AT_location
:
2755 case DW_AT_GNU_locviews
:
2756 case DW_AT_string_length
:
2757 case DW_AT_return_addr
:
2758 case DW_AT_data_member_location
:
2759 case DW_AT_vtable_elem_location
:
2761 case DW_AT_static_link
:
2762 case DW_AT_use_location
:
2763 case DW_AT_call_value
:
2764 case DW_AT_GNU_call_site_value
:
2765 case DW_AT_call_data_value
:
2766 case DW_AT_GNU_call_site_data_value
:
2767 case DW_AT_call_target
:
2768 case DW_AT_GNU_call_site_target
:
2769 case DW_AT_call_target_clobbered
:
2770 case DW_AT_GNU_call_site_target_clobbered
:
2771 if ((dwarf_version
< 4
2772 && (form
== DW_FORM_data4
|| form
== DW_FORM_data8
))
2773 || form
== DW_FORM_sec_offset
)
2775 /* Process location list. */
2776 unsigned int lmax
= debug_info_p
->max_loc_offsets
;
2777 unsigned int num
= debug_info_p
->num_loc_offsets
;
2779 if (lmax
== 0 || num
>= lmax
)
2782 debug_info_p
->loc_offsets
= (dwarf_vma
*)
2783 xcrealloc (debug_info_p
->loc_offsets
,
2784 lmax
, sizeof (*debug_info_p
->loc_offsets
));
2785 debug_info_p
->loc_views
= (dwarf_vma
*)
2786 xcrealloc (debug_info_p
->loc_views
,
2787 lmax
, sizeof (*debug_info_p
->loc_views
));
2788 debug_info_p
->have_frame_base
= (int *)
2789 xcrealloc (debug_info_p
->have_frame_base
,
2790 lmax
, sizeof (*debug_info_p
->have_frame_base
));
2791 debug_info_p
->max_loc_offsets
= lmax
;
2793 if (this_set
!= NULL
)
2794 uvalue
+= this_set
->section_offsets
[DW_SECT_LOC
];
2795 debug_info_p
->have_frame_base
[num
] = have_frame_base
;
2796 if (attribute
!= DW_AT_GNU_locviews
)
2798 /* Corrupt DWARF info can produce more offsets than views.
2799 See PR 23062 for an example. */
2800 if (debug_info_p
->num_loc_offsets
2801 > debug_info_p
->num_loc_views
)
2802 warn (_("More location offset attributes than DW_AT_GNU_locview attributes\n"));
2805 debug_info_p
->loc_offsets
[num
] = uvalue
;
2806 debug_info_p
->num_loc_offsets
++;
2811 assert (debug_info_p
->num_loc_views
<= num
);
2812 num
= debug_info_p
->num_loc_views
;
2813 if (num
> debug_info_p
->num_loc_offsets
)
2814 warn (_("More DW_AT_GNU_locview attributes than location offset attributes\n"));
2817 debug_info_p
->loc_views
[num
] = uvalue
;
2818 debug_info_p
->num_loc_views
++;
2825 if (need_base_address
)
2826 debug_info_p
->base_address
= uvalue
;
2829 case DW_AT_GNU_addr_base
:
2830 case DW_AT_addr_base
:
2831 debug_info_p
->addr_base
= uvalue
;
2834 case DW_AT_GNU_ranges_base
:
2835 debug_info_p
->ranges_base
= uvalue
;
2839 if ((dwarf_version
< 4
2840 && (form
== DW_FORM_data4
|| form
== DW_FORM_data8
))
2841 || form
== DW_FORM_sec_offset
)
2843 /* Process range list. */
2844 unsigned int lmax
= debug_info_p
->max_range_lists
;
2845 unsigned int num
= debug_info_p
->num_range_lists
;
2847 if (lmax
== 0 || num
>= lmax
)
2850 debug_info_p
->range_lists
= (dwarf_vma
*)
2851 xcrealloc (debug_info_p
->range_lists
,
2852 lmax
, sizeof (*debug_info_p
->range_lists
));
2853 debug_info_p
->max_range_lists
= lmax
;
2855 debug_info_p
->range_lists
[num
] = uvalue
;
2856 debug_info_p
->num_range_lists
++;
2860 case DW_AT_GNU_dwo_name
:
2861 case DW_AT_dwo_name
:
2866 add_dwo_name ((const char *) fetch_indirect_string (uvalue
), cu_offset
);
2868 case DW_FORM_GNU_strp_alt
:
2869 add_dwo_name ((const char *) fetch_alt_indirect_string (uvalue
), cu_offset
);
2871 case DW_FORM_GNU_str_index
:
2877 add_dwo_name (fetch_indexed_string (uvalue
, this_set
, offset_size
, false), cu_offset
);
2879 case DW_FORM_string
:
2880 add_dwo_name ((const char *) orig_data
, cu_offset
);
2883 warn (_("Unsupported form (%s) for attribute %s\n"),
2884 get_FORM_name (form
), get_AT_name (attribute
));
2889 case DW_AT_comp_dir
:
2890 /* FIXME: Also extract a build-id in a CU/TU. */
2895 add_dwo_dir ((const char *) fetch_indirect_string (uvalue
), cu_offset
);
2897 case DW_FORM_GNU_strp_alt
:
2898 add_dwo_dir (fetch_alt_indirect_string (uvalue
), cu_offset
);
2900 case DW_FORM_line_strp
:
2901 add_dwo_dir ((const char *) fetch_indirect_line_string (uvalue
), cu_offset
);
2903 case DW_FORM_GNU_str_index
:
2909 add_dwo_dir (fetch_indexed_string (uvalue
, this_set
, offset_size
, false), cu_offset
);
2911 case DW_FORM_string
:
2912 add_dwo_dir ((const char *) orig_data
, cu_offset
);
2915 warn (_("Unsupported form (%s) for attribute %s\n"),
2916 get_FORM_name (form
), get_AT_name (attribute
));
2921 case DW_AT_GNU_dwo_id
:
2926 /* FIXME: Record the length of the ID as well ? */
2927 add_dwo_id ((const char *) (data
- 8), cu_offset
);
2930 warn (_("Unsupported form (%s) for attribute %s\n"),
2931 get_FORM_name (form
), get_AT_name (attribute
));
2941 if (do_loc
|| attribute
== 0)
2944 /* For some attributes we can display further information. */
2948 if (level
>= 0 && level
< MAX_CU_NESTING
2949 && uvalue
< (size_t) (end
- start
))
2951 bool is_signed
= false;
2952 abbrev_entry
*type_abbrev
;
2953 unsigned char *type_data
;
2954 unsigned long type_cu_offset
;
2956 type_abbrev
= get_type_abbrev_from_form (form
, uvalue
, cu_offset
,
2957 section
, NULL
, & type_data
, & type_cu_offset
);
2958 if (type_abbrev
!= NULL
)
2960 get_type_signedness (type_abbrev
, section
, type_data
, end
, type_cu_offset
,
2961 pointer_size
, offset_size
, dwarf_version
,
2964 level_type_signed
[level
] = is_signed
;
2972 case DW_INL_not_inlined
:
2973 printf (_("(not inlined)"));
2975 case DW_INL_inlined
:
2976 printf (_("(inlined)"));
2978 case DW_INL_declared_not_inlined
:
2979 printf (_("(declared as inline but ignored)"));
2981 case DW_INL_declared_inlined
:
2982 printf (_("(declared as inline and inlined)"));
2985 printf (_(" (Unknown inline attribute value: %s)"),
2986 dwarf_vmatoa ("x", uvalue
));
2991 case DW_AT_language
:
2995 /* Ordered by the numeric value of these constants. */
2996 case DW_LANG_C89
: printf ("(ANSI C)"); break;
2997 case DW_LANG_C
: printf ("(non-ANSI C)"); break;
2998 case DW_LANG_Ada83
: printf ("(Ada)"); break;
2999 case DW_LANG_C_plus_plus
: printf ("(C++)"); break;
3000 case DW_LANG_Cobol74
: printf ("(Cobol 74)"); break;
3001 case DW_LANG_Cobol85
: printf ("(Cobol 85)"); break;
3002 case DW_LANG_Fortran77
: printf ("(FORTRAN 77)"); break;
3003 case DW_LANG_Fortran90
: printf ("(Fortran 90)"); break;
3004 case DW_LANG_Pascal83
: printf ("(ANSI Pascal)"); break;
3005 case DW_LANG_Modula2
: printf ("(Modula 2)"); break;
3006 /* DWARF 2.1 values. */
3007 case DW_LANG_Java
: printf ("(Java)"); break;
3008 case DW_LANG_C99
: printf ("(ANSI C99)"); break;
3009 case DW_LANG_Ada95
: printf ("(ADA 95)"); break;
3010 case DW_LANG_Fortran95
: printf ("(Fortran 95)"); break;
3011 /* DWARF 3 values. */
3012 case DW_LANG_PLI
: printf ("(PLI)"); break;
3013 case DW_LANG_ObjC
: printf ("(Objective C)"); break;
3014 case DW_LANG_ObjC_plus_plus
: printf ("(Objective C++)"); break;
3015 case DW_LANG_UPC
: printf ("(Unified Parallel C)"); break;
3016 case DW_LANG_D
: printf ("(D)"); break;
3017 /* DWARF 4 values. */
3018 case DW_LANG_Python
: printf ("(Python)"); break;
3019 /* DWARF 5 values. */
3020 case DW_LANG_OpenCL
: printf ("(OpenCL)"); break;
3021 case DW_LANG_Go
: printf ("(Go)"); break;
3022 case DW_LANG_Modula3
: printf ("(Modula 3)"); break;
3023 case DW_LANG_Haskell
: printf ("(Haskell)"); break;
3024 case DW_LANG_C_plus_plus_03
: printf ("(C++03)"); break;
3025 case DW_LANG_C_plus_plus_11
: printf ("(C++11)"); break;
3026 case DW_LANG_OCaml
: printf ("(OCaml)"); break;
3027 case DW_LANG_Rust
: printf ("(Rust)"); break;
3028 case DW_LANG_C11
: printf ("(C11)"); break;
3029 case DW_LANG_Swift
: printf ("(Swift)"); break;
3030 case DW_LANG_Julia
: printf ("(Julia)"); break;
3031 case DW_LANG_Dylan
: printf ("(Dylan)"); break;
3032 case DW_LANG_C_plus_plus_14
: printf ("(C++14)"); break;
3033 case DW_LANG_Fortran03
: printf ("(Fortran 03)"); break;
3034 case DW_LANG_Fortran08
: printf ("(Fortran 08)"); break;
3035 case DW_LANG_RenderScript
: printf ("(RenderScript)"); break;
3036 /* MIPS extension. */
3037 case DW_LANG_Mips_Assembler
: printf ("(MIPS assembler)"); break;
3038 /* UPC extension. */
3039 case DW_LANG_Upc
: printf ("(Unified Parallel C)"); break;
3041 if (uvalue
>= DW_LANG_lo_user
&& uvalue
<= DW_LANG_hi_user
)
3042 printf (_("(implementation defined: %s)"),
3043 dwarf_vmatoa ("x", uvalue
));
3045 printf (_("(Unknown: %s)"), dwarf_vmatoa ("x", uvalue
));
3050 case DW_AT_encoding
:
3054 case DW_ATE_void
: printf ("(void)"); break;
3055 case DW_ATE_address
: printf ("(machine address)"); break;
3056 case DW_ATE_boolean
: printf ("(boolean)"); break;
3057 case DW_ATE_complex_float
: printf ("(complex float)"); break;
3058 case DW_ATE_float
: printf ("(float)"); break;
3059 case DW_ATE_signed
: printf ("(signed)"); break;
3060 case DW_ATE_signed_char
: printf ("(signed char)"); break;
3061 case DW_ATE_unsigned
: printf ("(unsigned)"); break;
3062 case DW_ATE_unsigned_char
: printf ("(unsigned char)"); break;
3063 /* DWARF 2.1 values: */
3064 case DW_ATE_imaginary_float
: printf ("(imaginary float)"); break;
3065 case DW_ATE_decimal_float
: printf ("(decimal float)"); break;
3066 /* DWARF 3 values: */
3067 case DW_ATE_packed_decimal
: printf ("(packed_decimal)"); break;
3068 case DW_ATE_numeric_string
: printf ("(numeric_string)"); break;
3069 case DW_ATE_edited
: printf ("(edited)"); break;
3070 case DW_ATE_signed_fixed
: printf ("(signed_fixed)"); break;
3071 case DW_ATE_unsigned_fixed
: printf ("(unsigned_fixed)"); break;
3072 /* DWARF 4 values: */
3073 case DW_ATE_UTF
: printf ("(unicode string)"); break;
3074 /* DWARF 5 values: */
3075 case DW_ATE_UCS
: printf ("(UCS)"); break;
3076 case DW_ATE_ASCII
: printf ("(ASCII)"); break;
3078 /* HP extensions: */
3079 case DW_ATE_HP_float80
: printf ("(HP_float80)"); break;
3080 case DW_ATE_HP_complex_float80
: printf ("(HP_complex_float80)"); break;
3081 case DW_ATE_HP_float128
: printf ("(HP_float128)"); break;
3082 case DW_ATE_HP_complex_float128
:printf ("(HP_complex_float128)"); break;
3083 case DW_ATE_HP_floathpintel
: printf ("(HP_floathpintel)"); break;
3084 case DW_ATE_HP_imaginary_float80
: printf ("(HP_imaginary_float80)"); break;
3085 case DW_ATE_HP_imaginary_float128
: printf ("(HP_imaginary_float128)"); break;
3088 if (uvalue
>= DW_ATE_lo_user
3089 && uvalue
<= DW_ATE_hi_user
)
3090 printf (_("(user defined type)"));
3092 printf (_("(unknown type)"));
3097 case DW_AT_accessibility
:
3101 case DW_ACCESS_public
: printf ("(public)"); break;
3102 case DW_ACCESS_protected
: printf ("(protected)"); break;
3103 case DW_ACCESS_private
: printf ("(private)"); break;
3105 printf (_("(unknown accessibility)"));
3110 case DW_AT_visibility
:
3114 case DW_VIS_local
: printf ("(local)"); break;
3115 case DW_VIS_exported
: printf ("(exported)"); break;
3116 case DW_VIS_qualified
: printf ("(qualified)"); break;
3117 default: printf (_("(unknown visibility)")); break;
3121 case DW_AT_endianity
:
3125 case DW_END_default
: printf ("(default)"); break;
3126 case DW_END_big
: printf ("(big)"); break;
3127 case DW_END_little
: printf ("(little)"); break;
3129 if (uvalue
>= DW_END_lo_user
&& uvalue
<= DW_END_hi_user
)
3130 printf (_("(user specified)"));
3132 printf (_("(unknown endianity)"));
3137 case DW_AT_virtuality
:
3141 case DW_VIRTUALITY_none
: printf ("(none)"); break;
3142 case DW_VIRTUALITY_virtual
: printf ("(virtual)"); break;
3143 case DW_VIRTUALITY_pure_virtual
:printf ("(pure_virtual)"); break;
3144 default: printf (_("(unknown virtuality)")); break;
3148 case DW_AT_identifier_case
:
3152 case DW_ID_case_sensitive
: printf ("(case_sensitive)"); break;
3153 case DW_ID_up_case
: printf ("(up_case)"); break;
3154 case DW_ID_down_case
: printf ("(down_case)"); break;
3155 case DW_ID_case_insensitive
: printf ("(case_insensitive)"); break;
3156 default: printf (_("(unknown case)")); break;
3160 case DW_AT_calling_convention
:
3164 case DW_CC_normal
: printf ("(normal)"); break;
3165 case DW_CC_program
: printf ("(program)"); break;
3166 case DW_CC_nocall
: printf ("(nocall)"); break;
3167 case DW_CC_pass_by_reference
: printf ("(pass by ref)"); break;
3168 case DW_CC_pass_by_value
: printf ("(pass by value)"); break;
3169 case DW_CC_GNU_renesas_sh
: printf ("(Rensas SH)"); break;
3170 case DW_CC_GNU_borland_fastcall_i386
: printf ("(Borland fastcall i386)"); break;
3172 if (uvalue
>= DW_CC_lo_user
3173 && uvalue
<= DW_CC_hi_user
)
3174 printf (_("(user defined)"));
3176 printf (_("(unknown convention)"));
3180 case DW_AT_ordering
:
3185 case -1: printf (_("(undefined)")); break;
3186 case 0: printf ("(row major)"); break;
3187 case 1: printf ("(column major)"); break;
3191 case DW_AT_decimal_sign
:
3195 case DW_DS_unsigned
: printf (_("(unsigned)")); break;
3196 case DW_DS_leading_overpunch
: printf (_("(leading overpunch)")); break;
3197 case DW_DS_trailing_overpunch
: printf (_("(trailing overpunch)")); break;
3198 case DW_DS_leading_separate
: printf (_("(leading separate)")); break;
3199 case DW_DS_trailing_separate
: printf (_("(trailing separate)")); break;
3200 default: printf (_("(unrecognised)")); break;
3204 case DW_AT_defaulted
:
3208 case DW_DEFAULTED_no
: printf (_("(no)")); break;
3209 case DW_DEFAULTED_in_class
: printf (_("(in class)")); break;
3210 case DW_DEFAULTED_out_of_class
: printf (_("(out of class)")); break;
3211 default: printf (_("(unrecognised)")); break;
3215 case DW_AT_discr_list
:
3217 display_discr_list (form
, uvalue
, data
, end
, level
);
3220 case DW_AT_frame_base
:
3221 have_frame_base
= 1;
3223 case DW_AT_location
:
3224 case DW_AT_string_length
:
3225 case DW_AT_return_addr
:
3226 case DW_AT_data_member_location
:
3227 case DW_AT_vtable_elem_location
:
3229 case DW_AT_static_link
:
3230 case DW_AT_use_location
:
3231 case DW_AT_call_value
:
3232 case DW_AT_GNU_call_site_value
:
3233 case DW_AT_call_data_value
:
3234 case DW_AT_GNU_call_site_data_value
:
3235 case DW_AT_call_target
:
3236 case DW_AT_GNU_call_site_target
:
3237 case DW_AT_call_target_clobbered
:
3238 case DW_AT_GNU_call_site_target_clobbered
:
3239 if ((dwarf_version
< 4
3240 && (form
== DW_FORM_data4
|| form
== DW_FORM_data8
))
3241 || form
== DW_FORM_sec_offset
)
3242 printf (_(" (location list)"));
3244 case DW_AT_allocated
:
3245 case DW_AT_associated
:
3246 case DW_AT_data_location
:
3248 case DW_AT_upper_bound
:
3249 case DW_AT_lower_bound
:
3252 int need_frame_base
;
3255 need_frame_base
= decode_location_expression (block_start
,
3260 cu_offset
, section
);
3262 if (need_frame_base
&& !have_frame_base
)
3263 printf (_(" [without DW_AT_frame_base]"));
3267 case DW_AT_data_bit_offset
:
3268 case DW_AT_byte_size
:
3269 case DW_AT_bit_size
:
3270 case DW_AT_string_length_byte_size
:
3271 case DW_AT_string_length_bit_size
:
3272 case DW_AT_bit_stride
:
3273 if (form
== DW_FORM_exprloc
)
3276 (void) decode_location_expression (block_start
, pointer_size
,
3277 offset_size
, dwarf_version
,
3278 uvalue
, cu_offset
, section
);
3285 unsigned long abbrev_number
;
3286 abbrev_entry
*entry
;
3288 entry
= get_type_abbrev_from_form (form
, uvalue
, cu_offset
,
3289 section
, & abbrev_number
, NULL
, NULL
);
3292 if (form
!= DW_FORM_GNU_ref_alt
)
3293 warn (_("Offset %s used as value for DW_AT_import attribute of DIE at offset 0x%lx is too big.\n"),
3294 dwarf_vmatoa ("x", uvalue
),
3295 (unsigned long) (orig_data
- section
->start
));
3299 printf (_("\t[Abbrev Number: %ld"), abbrev_number
);
3300 printf (" (%s)", get_TAG_name (entry
->tag
));
3313 static unsigned char *
3314 read_and_display_attr (unsigned long attribute
,
3316 dwarf_signed_vma implicit_const
,
3317 unsigned char * start
,
3318 unsigned char * data
,
3319 unsigned char * end
,
3320 dwarf_vma cu_offset
,
3321 dwarf_vma pointer_size
,
3322 dwarf_vma offset_size
,
3324 debug_info
* debug_info_p
,
3326 struct dwarf_section
* section
,
3327 struct cu_tu_set
* this_set
,
3331 printf (" %-18s:", get_AT_name (attribute
));
3332 data
= read_and_display_attr_value (attribute
, form
, implicit_const
,
3334 cu_offset
, pointer_size
, offset_size
,
3335 dwarf_version
, debug_info_p
,
3336 do_loc
, section
, this_set
, ' ', level
);
3342 /* Like load_debug_section, but if the ordinary call fails, and we are
3343 following debug links, then attempt to load the requested section
3344 from one of the separate debug info files. */
3347 load_debug_section_with_follow (enum dwarf_section_display_enum sec_enum
,
3350 if (load_debug_section (sec_enum
, handle
))
3352 if (debug_displays
[sec_enum
].section
.filename
== NULL
)
3354 /* See if we can associate a filename with this section. */
3357 for (i
= first_separate_info
; i
!= NULL
; i
= i
->next
)
3358 if (i
->handle
== handle
)
3360 debug_displays
[sec_enum
].section
.filename
= i
->filename
;
3368 if (do_follow_links
)
3372 for (i
= first_separate_info
; i
!= NULL
; i
= i
->next
)
3374 if (load_debug_section (sec_enum
, i
->handle
))
3376 debug_displays
[sec_enum
].section
.filename
= i
->filename
;
3378 /* FIXME: We should check to see if any of the remaining debug info
3379 files also contain this section, and, umm, do something about it. */
3389 introduce (struct dwarf_section
* section
, bool raw
)
3393 if (do_follow_links
&& section
->filename
)
3394 printf (_("Raw dump of debug contents of section %s (loaded from %s):\n\n"),
3395 section
->name
, section
->filename
);
3397 printf (_("Raw dump of debug contents of section %s:\n\n"), section
->name
);
3401 if (do_follow_links
&& section
->filename
)
3402 printf (_("Contents of the %s section (loaded from %s):\n\n"),
3403 section
->name
, section
->filename
);
3405 printf (_("Contents of the %s section:\n\n"), section
->name
);
3409 /* Process the contents of a .debug_info section.
3410 If do_loc is TRUE then we are scanning for location lists and dwo tags
3411 and we do not want to display anything to the user.
3412 If do_types is TRUE, we are processing a .debug_types section instead of
3413 a .debug_info section.
3414 The information displayed is restricted by the values in DWARF_START_DIE
3415 and DWARF_CUTOFF_LEVEL.
3416 Returns TRUE upon success. Otherwise an error or warning message is
3417 printed and FALSE is returned. */
3420 process_debug_info (struct dwarf_section
* section
,
3422 enum dwarf_section_display_enum abbrev_sec
,
3426 unsigned char *start
= section
->start
;
3427 unsigned char *end
= start
+ section
->size
;
3428 unsigned char *section_begin
;
3430 unsigned int num_units
= 0;
3432 /* First scan the section to get the number of comp units.
3433 Length sanity checks are done here. */
3434 for (section_begin
= start
, num_units
= 0; section_begin
< end
;
3439 /* Read the first 4 bytes. For a 32-bit DWARF section, this
3440 will be the length. For a 64-bit DWARF section, it'll be
3441 the escape code 0xffffffff followed by an 8 byte length. */
3442 SAFE_BYTE_GET_AND_INC (length
, section_begin
, 4, end
);
3444 if (length
== 0xffffffff)
3445 SAFE_BYTE_GET_AND_INC (length
, section_begin
, 8, end
);
3446 else if (length
>= 0xfffffff0 && length
< 0xffffffff)
3448 warn (_("Reserved length value (0x%s) found in section %s\n"),
3449 dwarf_vmatoa ("x", length
), section
->name
);
3453 /* Negative values are illegal, they may even cause infinite
3454 looping. This can happen if we can't accurately apply
3455 relocations to an object file, or if the file is corrupt. */
3456 if (length
> (size_t) (end
- section_begin
))
3458 warn (_("Corrupt unit length (0x%s) found in section %s\n"),
3459 dwarf_vmatoa ("x", length
), section
->name
);
3462 section_begin
+= length
;
3467 error (_("No comp units in %s section ?\n"), section
->name
);
3471 if ((do_loc
|| do_debug_loc
|| do_debug_ranges
)
3472 && num_debug_info_entries
== 0
3476 /* Then allocate an array to hold the information. */
3477 debug_information
= (debug_info
*) cmalloc (num_units
,
3478 sizeof (* debug_information
));
3479 if (debug_information
== NULL
)
3481 error (_("Not enough memory for a debug info array of %u entries\n"),
3483 alloc_num_debug_info_entries
= num_debug_info_entries
= 0;
3487 /* PR 17531: file: 92ca3797.
3488 We cannot rely upon the debug_information array being initialised
3489 before it is used. A corrupt file could easily contain references
3490 to a unit for which information has not been made available. So
3491 we ensure that the array is zeroed here. */
3492 memset (debug_information
, 0, num_units
* sizeof (*debug_information
));
3494 alloc_num_debug_info_entries
= num_units
;
3499 load_debug_section_with_follow (str
, file
);
3500 load_debug_section_with_follow (line_str
, file
);
3501 load_debug_section_with_follow (str_dwo
, file
);
3502 load_debug_section_with_follow (str_index
, file
);
3503 load_debug_section_with_follow (str_index_dwo
, file
);
3504 load_debug_section_with_follow (debug_addr
, file
);
3507 load_debug_section_with_follow (abbrev_sec
, file
);
3508 if (debug_displays
[abbrev_sec
].section
.start
== NULL
)
3510 warn (_("Unable to locate %s section!\n"),
3511 debug_displays
[abbrev_sec
].section
.uncompressed_name
);
3515 if (!do_loc
&& dwarf_start_die
== 0)
3516 introduce (section
, false);
3518 free_all_abbrevs ();
3519 free (cu_abbrev_map
);
3520 cu_abbrev_map
= NULL
;
3521 next_free_abbrev_map_entry
= 0;
3523 /* In order to be able to resolve DW_FORM_ref_attr forms we need
3524 to load *all* of the abbrevs for all CUs in this .debug_info
3525 section. This does effectively mean that we (partially) read
3526 every CU header twice. */
3527 for (section_begin
= start
; start
< end
;)
3529 DWARF2_Internal_CompUnit compunit
;
3530 unsigned char * hdrptr
;
3531 dwarf_vma abbrev_base
;
3533 dwarf_vma cu_offset
;
3534 unsigned int offset_size
;
3535 struct cu_tu_set
* this_set
;
3537 unsigned char *end_cu
;
3540 cu_offset
= start
- section_begin
;
3542 SAFE_BYTE_GET_AND_INC (compunit
.cu_length
, hdrptr
, 4, end
);
3544 if (compunit
.cu_length
== 0xffffffff)
3546 SAFE_BYTE_GET_AND_INC (compunit
.cu_length
, hdrptr
, 8, end
);
3551 end_cu
= hdrptr
+ compunit
.cu_length
;
3553 SAFE_BYTE_GET_AND_INC (compunit
.cu_version
, hdrptr
, 2, end_cu
);
3555 this_set
= find_cu_tu_set_v2 (cu_offset
, do_types
);
3557 if (compunit
.cu_version
< 5)
3559 compunit
.cu_unit_type
= DW_UT_compile
;
3560 /* Initialize it due to a false compiler warning. */
3561 compunit
.cu_pointer_size
= -1;
3565 SAFE_BYTE_GET_AND_INC (compunit
.cu_unit_type
, hdrptr
, 1, end_cu
);
3566 do_types
= (compunit
.cu_unit_type
== DW_UT_type
);
3568 SAFE_BYTE_GET_AND_INC (compunit
.cu_pointer_size
, hdrptr
, 1, end_cu
);
3571 SAFE_BYTE_GET_AND_INC (compunit
.cu_abbrev_offset
, hdrptr
, offset_size
,
3574 if (compunit
.cu_unit_type
== DW_UT_split_compile
3575 || compunit
.cu_unit_type
== DW_UT_skeleton
)
3578 SAFE_BYTE_GET_AND_INC (dwo_id
, hdrptr
, 8, end_cu
);
3581 if (this_set
== NULL
)
3584 abbrev_size
= debug_displays
[abbrev_sec
].section
.size
;
3588 abbrev_base
= this_set
->section_offsets
[DW_SECT_ABBREV
];
3589 abbrev_size
= this_set
->section_sizes
[DW_SECT_ABBREV
];
3592 list
= find_abbrev_list_by_abbrev_offset (abbrev_base
,
3593 compunit
.cu_abbrev_offset
);
3596 unsigned char * next
;
3598 list
= new_abbrev_list (abbrev_base
,
3599 compunit
.cu_abbrev_offset
);
3600 next
= process_abbrev_set (&debug_displays
[abbrev_sec
].section
,
3601 abbrev_base
, abbrev_size
,
3602 compunit
.cu_abbrev_offset
, list
);
3603 list
->start_of_next_abbrevs
= next
;
3607 record_abbrev_list_for_cu (cu_offset
, start
- section_begin
, list
);
3610 for (start
= section_begin
, unit
= 0; start
< end
; unit
++)
3612 DWARF2_Internal_CompUnit compunit
;
3613 unsigned char *hdrptr
;
3614 unsigned char *tags
;
3615 int level
, last_level
, saved_level
;
3616 dwarf_vma cu_offset
;
3617 unsigned int offset_size
;
3618 dwarf_vma signature
= 0;
3619 dwarf_vma type_offset
= 0;
3620 struct cu_tu_set
*this_set
;
3621 dwarf_vma abbrev_base
;
3623 abbrev_list
* list
= NULL
;
3624 unsigned char *end_cu
;
3627 cu_offset
= start
- section_begin
;
3629 SAFE_BYTE_GET_AND_INC (compunit
.cu_length
, hdrptr
, 4, end
);
3631 if (compunit
.cu_length
== 0xffffffff)
3633 SAFE_BYTE_GET_AND_INC (compunit
.cu_length
, hdrptr
, 8, end
);
3638 end_cu
= hdrptr
+ compunit
.cu_length
;
3640 SAFE_BYTE_GET_AND_INC (compunit
.cu_version
, hdrptr
, 2, end_cu
);
3642 this_set
= find_cu_tu_set_v2 (cu_offset
, do_types
);
3644 if (compunit
.cu_version
< 5)
3646 compunit
.cu_unit_type
= DW_UT_compile
;
3647 /* Initialize it due to a false compiler warning. */
3648 compunit
.cu_pointer_size
= -1;
3652 SAFE_BYTE_GET_AND_INC (compunit
.cu_unit_type
, hdrptr
, 1, end_cu
);
3653 do_types
= (compunit
.cu_unit_type
== DW_UT_type
);
3655 SAFE_BYTE_GET_AND_INC (compunit
.cu_pointer_size
, hdrptr
, 1, end_cu
);
3658 SAFE_BYTE_GET_AND_INC (compunit
.cu_abbrev_offset
, hdrptr
, offset_size
, end_cu
);
3660 if (this_set
== NULL
)
3663 abbrev_size
= debug_displays
[abbrev_sec
].section
.size
;
3667 abbrev_base
= this_set
->section_offsets
[DW_SECT_ABBREV
];
3668 abbrev_size
= this_set
->section_sizes
[DW_SECT_ABBREV
];
3671 if (compunit
.cu_version
< 5)
3672 SAFE_BYTE_GET_AND_INC (compunit
.cu_pointer_size
, hdrptr
, 1, end_cu
);
3674 bool do_dwo_id
= false;
3675 uint64_t dwo_id
= 0;
3676 if (compunit
.cu_unit_type
== DW_UT_split_compile
3677 || compunit
.cu_unit_type
== DW_UT_skeleton
)
3679 SAFE_BYTE_GET_AND_INC (dwo_id
, hdrptr
, 8, end_cu
);
3683 /* PR 17512: file: 001-108546-0.001:0.1. */
3684 if (compunit
.cu_pointer_size
< 2 || compunit
.cu_pointer_size
> 8)
3686 warn (_("Invalid pointer size (%d) in compunit header, using %d instead\n"),
3687 compunit
.cu_pointer_size
, offset_size
);
3688 compunit
.cu_pointer_size
= offset_size
;
3693 SAFE_BYTE_GET_AND_INC (signature
, hdrptr
, 8, end_cu
);
3694 SAFE_BYTE_GET_AND_INC (type_offset
, hdrptr
, offset_size
, end_cu
);
3697 if (dwarf_start_die
>= (size_t) (end_cu
- section_begin
))
3703 if ((do_loc
|| do_debug_loc
|| do_debug_ranges
)
3704 && num_debug_info_entries
== 0
3705 && alloc_num_debug_info_entries
> unit
3708 debug_information
[unit
].cu_offset
= cu_offset
;
3709 debug_information
[unit
].pointer_size
3710 = compunit
.cu_pointer_size
;
3711 debug_information
[unit
].offset_size
= offset_size
;
3712 debug_information
[unit
].dwarf_version
= compunit
.cu_version
;
3713 debug_information
[unit
].base_address
= 0;
3714 debug_information
[unit
].addr_base
= DEBUG_INFO_UNAVAILABLE
;
3715 debug_information
[unit
].ranges_base
= DEBUG_INFO_UNAVAILABLE
;
3716 debug_information
[unit
].loc_offsets
= NULL
;
3717 debug_information
[unit
].have_frame_base
= NULL
;
3718 debug_information
[unit
].max_loc_offsets
= 0;
3719 debug_information
[unit
].num_loc_offsets
= 0;
3720 debug_information
[unit
].range_lists
= NULL
;
3721 debug_information
[unit
].max_range_lists
= 0;
3722 debug_information
[unit
].num_range_lists
= 0;
3725 if (!do_loc
&& dwarf_start_die
== 0)
3727 printf (_(" Compilation Unit @ offset 0x%s:\n"),
3728 dwarf_vmatoa ("x", cu_offset
));
3729 printf (_(" Length: 0x%s (%s)\n"),
3730 dwarf_vmatoa ("x", compunit
.cu_length
),
3731 offset_size
== 8 ? "64-bit" : "32-bit");
3732 printf (_(" Version: %d\n"), compunit
.cu_version
);
3733 if (compunit
.cu_version
>= 5)
3735 const char *name
= get_DW_UT_name (compunit
.cu_unit_type
);
3737 printf (_(" Unit Type: %s (%x)\n"),
3738 name
? name
: "???",
3739 compunit
.cu_unit_type
);
3741 printf (_(" Abbrev Offset: 0x%s\n"),
3742 dwarf_vmatoa ("x", compunit
.cu_abbrev_offset
));
3743 printf (_(" Pointer Size: %d\n"), compunit
.cu_pointer_size
);
3746 printf (_(" Signature: 0x%s\n"),
3747 dwarf_vmatoa ("x", signature
));
3748 printf (_(" Type Offset: 0x%s\n"),
3749 dwarf_vmatoa ("x", type_offset
));
3752 printf (_(" DWO ID: 0x%s\n"), dwarf_vmatoa ("x", dwo_id
));
3753 if (this_set
!= NULL
)
3755 dwarf_vma
*offsets
= this_set
->section_offsets
;
3756 size_t *sizes
= this_set
->section_sizes
;
3758 printf (_(" Section contributions:\n"));
3759 printf (_(" .debug_abbrev.dwo: 0x%s 0x%s\n"),
3760 dwarf_vmatoa ("x", offsets
[DW_SECT_ABBREV
]),
3761 dwarf_vmatoa ("x", sizes
[DW_SECT_ABBREV
]));
3762 printf (_(" .debug_line.dwo: 0x%s 0x%s\n"),
3763 dwarf_vmatoa ("x", offsets
[DW_SECT_LINE
]),
3764 dwarf_vmatoa ("x", sizes
[DW_SECT_LINE
]));
3765 printf (_(" .debug_loc.dwo: 0x%s 0x%s\n"),
3766 dwarf_vmatoa ("x", offsets
[DW_SECT_LOC
]),
3767 dwarf_vmatoa ("x", sizes
[DW_SECT_LOC
]));
3768 printf (_(" .debug_str_offsets.dwo: 0x%s 0x%s\n"),
3769 dwarf_vmatoa ("x", offsets
[DW_SECT_STR_OFFSETS
]),
3770 dwarf_vmatoa ("x", sizes
[DW_SECT_STR_OFFSETS
]));
3777 if (compunit
.cu_version
< 2 || compunit
.cu_version
> 5)
3779 warn (_("CU at offset %s contains corrupt or "
3780 "unsupported version number: %d.\n"),
3781 dwarf_vmatoa ("x", cu_offset
), compunit
.cu_version
);
3785 if (compunit
.cu_unit_type
!= DW_UT_compile
3786 && compunit
.cu_unit_type
!= DW_UT_partial
3787 && compunit
.cu_unit_type
!= DW_UT_type
3788 && compunit
.cu_unit_type
!= DW_UT_split_compile
3789 && compunit
.cu_unit_type
!= DW_UT_skeleton
)
3791 warn (_("CU at offset %s contains corrupt or "
3792 "unsupported unit type: %d.\n"),
3793 dwarf_vmatoa ("x", cu_offset
), compunit
.cu_unit_type
);
3797 /* Process the abbrevs used by this compilation unit. */
3798 list
= find_abbrev_list_by_abbrev_offset (abbrev_base
,
3799 compunit
.cu_abbrev_offset
);
3802 unsigned char *next
;
3804 list
= new_abbrev_list (abbrev_base
,
3805 compunit
.cu_abbrev_offset
);
3806 next
= process_abbrev_set (&debug_displays
[abbrev_sec
].section
,
3807 abbrev_base
, abbrev_size
,
3808 compunit
.cu_abbrev_offset
, list
);
3809 list
->start_of_next_abbrevs
= next
;
3815 while (tags
< start
)
3817 unsigned long abbrev_number
;
3818 unsigned long die_offset
;
3819 abbrev_entry
*entry
;
3821 int do_printing
= 1;
3823 die_offset
= tags
- section_begin
;
3825 READ_ULEB (abbrev_number
, tags
, start
);
3827 /* A null DIE marks the end of a list of siblings or it may also be
3828 a section padding. */
3829 if (abbrev_number
== 0)
3831 /* Check if it can be a section padding for the last CU. */
3832 if (level
== 0 && start
== end
)
3836 for (chk
= tags
; chk
< start
; chk
++)
3843 if (!do_loc
&& die_offset
>= dwarf_start_die
3844 && (dwarf_cutoff_level
== -1
3845 || level
< dwarf_cutoff_level
))
3846 printf (_(" <%d><%lx>: Abbrev Number: 0\n"),
3852 static unsigned num_bogus_warns
= 0;
3854 if (num_bogus_warns
< 3)
3856 warn (_("Bogus end-of-siblings marker detected at offset %lx in %s section\n"),
3857 die_offset
, section
->name
);
3859 if (num_bogus_warns
== 3)
3860 warn (_("Further warnings about bogus end-of-sibling markers suppressed\n"));
3863 if (dwarf_start_die
!= 0 && level
< saved_level
)
3870 if (dwarf_start_die
!= 0 && die_offset
< dwarf_start_die
)
3874 if (dwarf_start_die
!= 0 && die_offset
== dwarf_start_die
)
3875 saved_level
= level
;
3876 do_printing
= (dwarf_cutoff_level
== -1
3877 || level
< dwarf_cutoff_level
);
3879 printf (_(" <%d><%lx>: Abbrev Number: %lu"),
3880 level
, die_offset
, abbrev_number
);
3881 else if (dwarf_cutoff_level
== -1
3882 || last_level
< dwarf_cutoff_level
)
3883 printf (_(" <%d><%lx>: ...\n"), level
, die_offset
);
3888 /* Scan through the abbreviation list until we reach the
3893 for (entry
= list
->first_abbrev
; entry
!= NULL
; entry
= entry
->next
)
3894 if (entry
->number
== abbrev_number
)
3899 if (!do_loc
&& do_printing
)
3904 warn (_("DIE at offset 0x%lx refers to abbreviation number %lu which does not exist\n"),
3905 die_offset
, abbrev_number
);
3909 if (!do_loc
&& do_printing
)
3910 printf (" (%s)\n", get_TAG_name (entry
->tag
));
3915 need_base_address
= 0;
3917 case DW_TAG_compile_unit
:
3918 need_base_address
= 1;
3919 need_dwo_info
= do_loc
;
3921 case DW_TAG_entry_point
:
3922 case DW_TAG_subprogram
:
3923 need_base_address
= 0;
3924 /* Assuming that there is no DW_AT_frame_base. */
3925 have_frame_base
= 0;
3929 debug_info
*debug_info_p
=
3930 (debug_information
&& unit
< alloc_num_debug_info_entries
)
3931 ? debug_information
+ unit
: NULL
;
3933 assert (!debug_info_p
3934 || (debug_info_p
->num_loc_offsets
3935 == debug_info_p
->num_loc_views
));
3937 for (attr
= entry
->first_attr
;
3938 attr
&& attr
->attribute
;
3941 if (! do_loc
&& do_printing
)
3942 /* Show the offset from where the tag was extracted. */
3943 printf (" <%lx>", (unsigned long)(tags
- section_begin
));
3944 tags
= read_and_display_attr (attr
->attribute
,
3946 attr
->implicit_const
,
3951 compunit
.cu_pointer_size
,
3953 compunit
.cu_version
,
3955 do_loc
|| ! do_printing
,
3961 /* If a locview attribute appears before a location one,
3962 make sure we don't associate it with an earlier
3965 switch (debug_info_p
->num_loc_offsets
- debug_info_p
->num_loc_views
)
3968 debug_info_p
->loc_views
[debug_info_p
->num_loc_views
] = vm1
;
3969 debug_info_p
->num_loc_views
++;
3970 assert (debug_info_p
->num_loc_views
3971 == debug_info_p
->num_loc_offsets
);
3978 warn(_("DIE has locviews without loclist\n"));
3979 debug_info_p
->num_loc_views
--;
3986 if (entry
->children
)
3991 /* Set num_debug_info_entries here so that it can be used to check if
3992 we need to process .debug_loc and .debug_ranges sections. */
3993 if ((do_loc
|| do_debug_loc
|| do_debug_ranges
)
3994 && num_debug_info_entries
== 0
3997 if (num_units
> alloc_num_debug_info_entries
)
3998 num_debug_info_entries
= alloc_num_debug_info_entries
;
4000 num_debug_info_entries
= num_units
;
4009 /* Locate and scan the .debug_info section in the file and record the pointer
4010 sizes and offsets for the compilation units in it. Usually an executable
4011 will have just one pointer size, but this is not guaranteed, and so we try
4012 not to make any assumptions. Returns zero upon failure, or the number of
4013 compilation units upon success. */
4016 load_debug_info (void * file
)
4018 /* If we have already tried and failed to load the .debug_info
4019 section then do not bother to repeat the task. */
4020 if (num_debug_info_entries
== DEBUG_INFO_UNAVAILABLE
)
4023 /* If we already have the information there is nothing else to do. */
4024 if (num_debug_info_entries
> 0)
4025 return num_debug_info_entries
;
4027 /* If this is a DWARF package file, load the CU and TU indexes. */
4028 (void) load_cu_tu_indexes (file
);
4030 if (load_debug_section_with_follow (info
, file
)
4031 && process_debug_info (&debug_displays
[info
].section
, file
, abbrev
, true, false))
4032 return num_debug_info_entries
;
4034 if (load_debug_section_with_follow (info_dwo
, file
)
4035 && process_debug_info (&debug_displays
[info_dwo
].section
, file
,
4036 abbrev_dwo
, true, false))
4037 return num_debug_info_entries
;
4039 num_debug_info_entries
= DEBUG_INFO_UNAVAILABLE
;
4043 /* Read a DWARF .debug_line section header starting at DATA.
4044 Upon success returns an updated DATA pointer and the LINFO
4045 structure and the END_OF_SEQUENCE pointer will be filled in.
4046 Otherwise returns NULL. */
4048 static unsigned char *
4049 read_debug_line_header (struct dwarf_section
* section
,
4050 unsigned char * data
,
4051 unsigned char * end
,
4052 DWARF2_Internal_LineInfo
* linfo
,
4053 unsigned char ** end_of_sequence
)
4055 unsigned char *hdrptr
;
4057 /* Extract information from the Line Number Program Header.
4058 (section 6.2.4 in the Dwarf3 doc). */
4061 /* Get and check the length of the block. */
4062 SAFE_BYTE_GET_AND_INC (linfo
->li_length
, hdrptr
, 4, end
);
4064 if (linfo
->li_length
== 0xffffffff)
4066 /* This section is 64-bit DWARF 3. */
4067 SAFE_BYTE_GET_AND_INC (linfo
->li_length
, hdrptr
, 8, end
);
4068 linfo
->li_offset_size
= 8;
4071 linfo
->li_offset_size
= 4;
4073 if (linfo
->li_length
> (size_t) (end
- hdrptr
))
4075 /* If the length field has a relocation against it, then we should
4076 not complain if it is inaccurate (and probably negative). This
4077 happens in object files when the .debug_line section is actually
4078 comprised of several different .debug_line.* sections, (some of
4079 which may be removed by linker garbage collection), and a relocation
4080 is used to compute the correct length once that is done. */
4081 if (reloc_at (section
, (hdrptr
- section
->start
) - linfo
->li_offset_size
))
4083 linfo
->li_length
= end
- hdrptr
;
4087 warn (_("The length field (0x%lx) in the debug_line header is wrong - the section is too small\n"),
4088 (long) linfo
->li_length
);
4092 end
= hdrptr
+ linfo
->li_length
;
4094 /* Get and check the version number. */
4095 SAFE_BYTE_GET_AND_INC (linfo
->li_version
, hdrptr
, 2, end
);
4097 if (linfo
->li_version
!= 2
4098 && linfo
->li_version
!= 3
4099 && linfo
->li_version
!= 4
4100 && linfo
->li_version
!= 5)
4102 warn (_("Only DWARF version 2, 3, 4 and 5 line info "
4103 "is currently supported.\n"));
4107 if (linfo
->li_version
>= 5)
4109 SAFE_BYTE_GET_AND_INC (linfo
->li_address_size
, hdrptr
, 1, end
);
4111 SAFE_BYTE_GET_AND_INC (linfo
->li_segment_size
, hdrptr
, 1, end
);
4112 if (linfo
->li_segment_size
!= 0)
4114 warn (_("The %s section contains "
4115 "unsupported segment selector size: %d.\n"),
4116 section
->name
, linfo
->li_segment_size
);
4121 SAFE_BYTE_GET_AND_INC (linfo
->li_prologue_length
, hdrptr
,
4122 linfo
->li_offset_size
, end
);
4123 SAFE_BYTE_GET_AND_INC (linfo
->li_min_insn_length
, hdrptr
, 1, end
);
4125 if (linfo
->li_version
>= 4)
4127 SAFE_BYTE_GET_AND_INC (linfo
->li_max_ops_per_insn
, hdrptr
, 1, end
);
4129 if (linfo
->li_max_ops_per_insn
== 0)
4131 warn (_("Invalid maximum operations per insn.\n"));
4136 linfo
->li_max_ops_per_insn
= 1;
4138 SAFE_BYTE_GET_AND_INC (linfo
->li_default_is_stmt
, hdrptr
, 1, end
);
4139 SAFE_SIGNED_BYTE_GET_AND_INC (linfo
->li_line_base
, hdrptr
, 1, end
);
4140 SAFE_BYTE_GET_AND_INC (linfo
->li_line_range
, hdrptr
, 1, end
);
4141 SAFE_BYTE_GET_AND_INC (linfo
->li_opcode_base
, hdrptr
, 1, end
);
4143 *end_of_sequence
= end
;
4147 static unsigned char *
4148 display_formatted_table (unsigned char *data
,
4149 unsigned char *start
,
4151 const DWARF2_Internal_LineInfo
*linfo
,
4152 struct dwarf_section
*section
,
4155 unsigned char *format_start
, format_count
, *format
, formati
;
4156 dwarf_vma data_count
, datai
;
4157 unsigned int namepass
, last_entry
= 0;
4158 const char * table_name
= is_dir
? N_("Directory Table") : N_("File Name Table");
4160 SAFE_BYTE_GET_AND_INC (format_count
, data
, 1, end
);
4161 if (do_checks
&& format_count
> 5)
4162 warn (_("Unexpectedly large number of columns in the %s (%u)\n"),
4163 table_name
, format_count
);
4165 format_start
= data
;
4166 for (formati
= 0; formati
< format_count
; formati
++)
4168 SKIP_ULEB (data
, end
);
4169 SKIP_ULEB (data
, end
);
4172 warn (_("%s: Corrupt format description entry\n"), table_name
);
4177 READ_ULEB (data_count
, data
, end
);
4178 if (data_count
== 0)
4180 printf (_("\n The %s is empty.\n"), table_name
);
4183 else if (data
>= end
)
4185 warn (_("%s: Corrupt entry count - expected %s but none found\n"),
4186 table_name
, dwarf_vmatoa ("x", data_count
));
4190 else if (format_count
== 0)
4192 warn (_("%s: format count is zero, but the table is not empty\n"),
4197 printf (_("\n The %s (offset 0x%lx, lines %s, columns %u):\n"),
4198 table_name
, (long) (data
- start
), dwarf_vmatoa ("u", data_count
),
4201 printf (_(" Entry"));
4202 /* Delay displaying name as the last entry for better screen layout. */
4203 for (namepass
= 0; namepass
< 2; namepass
++)
4205 format
= format_start
;
4206 for (formati
= 0; formati
< format_count
; formati
++)
4208 dwarf_vma content_type
;
4210 READ_ULEB (content_type
, format
, end
);
4211 if ((content_type
== DW_LNCT_path
) == (namepass
== 1))
4212 switch (content_type
)
4215 printf (_("\tName"));
4217 case DW_LNCT_directory_index
:
4218 printf (_("\tDir"));
4220 case DW_LNCT_timestamp
:
4221 printf (_("\tTime"));
4224 printf (_("\tSize"));
4227 printf (_("\tMD5\t\t\t"));
4230 printf (_("\t(Unknown format content type %s)"),
4231 dwarf_vmatoa ("u", content_type
));
4233 SKIP_ULEB (format
, end
);
4238 for (datai
= 0; datai
< data_count
; datai
++)
4240 unsigned char *datapass
= data
;
4242 printf (" %d", last_entry
++);
4243 /* Delay displaying name as the last entry for better screen layout. */
4244 for (namepass
= 0; namepass
< 2; namepass
++)
4246 format
= format_start
;
4248 for (formati
= 0; formati
< format_count
; formati
++)
4250 dwarf_vma content_type
, form
;
4252 READ_ULEB (content_type
, format
, end
);
4253 READ_ULEB (form
, format
, end
);
4254 data
= read_and_display_attr_value (0, form
, 0, start
, data
, end
,
4255 0, 0, linfo
->li_offset_size
,
4256 linfo
->li_version
, NULL
,
4257 ((content_type
== DW_LNCT_path
) != (namepass
== 1)),
4258 section
, NULL
, '\t', -1);
4262 if (data
>= end
&& (datai
< data_count
- 1))
4264 warn (_("\n%s: Corrupt entries list\n"), table_name
);
4273 display_debug_sup (struct dwarf_section
* section
,
4274 void * file ATTRIBUTE_UNUSED
)
4276 unsigned char * start
= section
->start
;
4277 unsigned char * end
= section
->start
+ section
->size
;
4278 unsigned int version
;
4279 char is_supplementary
;
4280 const unsigned char * sup_filename
;
4281 size_t sup_filename_len
;
4282 unsigned int num_read
;
4284 dwarf_vma checksum_len
;
4287 introduce (section
, true);
4288 if (section
->size
< 4)
4290 error (_("corrupt .debug_sup section: size is too small\n"));
4294 /* Read the data. */
4295 SAFE_BYTE_GET_AND_INC (version
, start
, 2, end
);
4297 warn (_("corrupt .debug_sup section: version < 5"));
4299 SAFE_BYTE_GET_AND_INC (is_supplementary
, start
, 1, end
);
4300 if (is_supplementary
!= 0 && is_supplementary
!= 1)
4301 warn (_("corrupt .debug_sup section: is_supplementary not 0 or 1\n"));
4303 sup_filename
= start
;
4304 if (is_supplementary
&& sup_filename
[0] != 0)
4305 warn (_("corrupt .debug_sup section: filename not empty in supplementary section\n"));
4307 sup_filename_len
= strnlen ((const char *) start
, end
- start
);
4308 if (sup_filename_len
== (size_t) (end
- start
))
4310 error (_("corrupt .debug_sup section: filename is not NUL terminated\n"));
4313 start
+= sup_filename_len
+ 1;
4315 checksum_len
= read_leb128 (start
, end
, false /* unsigned */, & num_read
, & status
);
4318 error (_("corrupt .debug_sup section: bad LEB128 field for checksum length\n"));
4322 if (checksum_len
> (dwarf_vma
) (end
- start
))
4324 error (_("corrupt .debug_sup section: checksum length is longer than the remaining section length\n"));
4325 checksum_len
= end
- start
;
4327 else if (checksum_len
< (dwarf_vma
) (end
- start
))
4329 warn (_("corrupt .debug_sup section: there are 0x%lx extra, unused bytes at the end of the section\n"),
4330 (long) ((end
- start
) - checksum_len
));
4333 printf (_(" Version: %u\n"), version
);
4334 printf (_(" Is Supp: %u\n"), is_supplementary
);
4335 printf (_(" Filename: %s\n"), sup_filename
);
4336 printf (_(" Checksum Len: %lu\n"), (long) checksum_len
);
4337 if (checksum_len
> 0)
4339 printf (_(" Checksum: "));
4340 while (checksum_len
--)
4341 printf ("0x%x ", * start
++ );
4348 display_debug_lines_raw (struct dwarf_section
* section
,
4349 unsigned char * data
,
4350 unsigned char * end
,
4353 unsigned char *start
= section
->start
;
4354 int verbose_view
= 0;
4356 introduce (section
, true);
4360 static DWARF2_Internal_LineInfo saved_linfo
;
4361 DWARF2_Internal_LineInfo linfo
;
4362 unsigned char *standard_opcodes
;
4363 unsigned char *end_of_sequence
;
4366 if (startswith (section
->name
, ".debug_line.")
4367 /* Note: the following does not apply to .debug_line.dwo sections.
4368 These are full debug_line sections. */
4369 && strcmp (section
->name
, ".debug_line.dwo") != 0)
4371 /* Sections named .debug_line.<foo> are fragments of a .debug_line
4372 section containing just the Line Number Statements. They are
4373 created by the assembler and intended to be used alongside gcc's
4374 -ffunction-sections command line option. When the linker's
4375 garbage collection decides to discard a .text.<foo> section it
4376 can then also discard the line number information in .debug_line.<foo>.
4378 Since the section is a fragment it does not have the details
4379 needed to fill out a LineInfo structure, so instead we use the
4380 details from the last full debug_line section that we processed. */
4381 end_of_sequence
= end
;
4382 standard_opcodes
= NULL
;
4383 linfo
= saved_linfo
;
4384 /* PR 17531: file: 0522b371. */
4385 if (linfo
.li_line_range
== 0)
4387 warn (_("Partial .debug_line. section encountered without a prior full .debug_line section\n"));
4390 reset_state_machine (linfo
.li_default_is_stmt
);
4394 unsigned char * hdrptr
;
4396 if ((hdrptr
= read_debug_line_header (section
, data
, end
, & linfo
,
4397 & end_of_sequence
)) == NULL
)
4400 printf (_(" Offset: 0x%lx\n"), (long)(data
- start
));
4401 printf (_(" Length: %ld\n"), (long) linfo
.li_length
);
4402 printf (_(" DWARF Version: %d\n"), linfo
.li_version
);
4403 if (linfo
.li_version
>= 5)
4405 printf (_(" Address size (bytes): %d\n"), linfo
.li_address_size
);
4406 printf (_(" Segment selector (bytes): %d\n"), linfo
.li_segment_size
);
4408 printf (_(" Prologue Length: %d\n"), (int) linfo
.li_prologue_length
);
4409 printf (_(" Minimum Instruction Length: %d\n"), linfo
.li_min_insn_length
);
4410 if (linfo
.li_version
>= 4)
4411 printf (_(" Maximum Ops per Instruction: %d\n"), linfo
.li_max_ops_per_insn
);
4412 printf (_(" Initial value of 'is_stmt': %d\n"), linfo
.li_default_is_stmt
);
4413 printf (_(" Line Base: %d\n"), linfo
.li_line_base
);
4414 printf (_(" Line Range: %d\n"), linfo
.li_line_range
);
4415 printf (_(" Opcode Base: %d\n"), linfo
.li_opcode_base
);
4417 /* PR 17512: file: 1665-6428-0.004. */
4418 if (linfo
.li_line_range
== 0)
4420 warn (_("Line range of 0 is invalid, using 1 instead\n"));
4421 linfo
.li_line_range
= 1;
4424 reset_state_machine (linfo
.li_default_is_stmt
);
4426 /* Display the contents of the Opcodes table. */
4427 standard_opcodes
= hdrptr
;
4429 /* PR 17512: file: 002-417945-0.004. */
4430 if (standard_opcodes
+ linfo
.li_opcode_base
>= end
)
4432 warn (_("Line Base extends beyond end of section\n"));
4436 printf (_("\n Opcodes:\n"));
4438 for (i
= 1; i
< linfo
.li_opcode_base
; i
++)
4439 printf (ngettext (" Opcode %d has %d arg\n",
4440 " Opcode %d has %d args\n",
4441 standard_opcodes
[i
- 1]),
4442 i
, standard_opcodes
[i
- 1]);
4444 /* Display the contents of the Directory table. */
4445 data
= standard_opcodes
+ linfo
.li_opcode_base
- 1;
4447 if (linfo
.li_version
>= 5)
4449 load_debug_section_with_follow (line_str
, file
);
4451 data
= display_formatted_table (data
, start
, end
, &linfo
, section
,
4453 data
= display_formatted_table (data
, start
, end
, &linfo
, section
,
4459 printf (_("\n The Directory Table is empty.\n"));
4462 unsigned int last_dir_entry
= 0;
4464 printf (_("\n The Directory Table (offset 0x%lx):\n"),
4465 (long)(data
- start
));
4467 while (data
< end
&& *data
!= 0)
4469 printf (" %d\t%.*s\n", ++last_dir_entry
, (int) (end
- data
), data
);
4471 data
+= strnlen ((char *) data
, end
- data
);
4476 /* PR 17512: file: 002-132094-0.004. */
4477 if (data
>= end
- 1)
4481 /* Skip the NUL at the end of the table. */
4485 /* Display the contents of the File Name table. */
4486 if (data
>= end
|| *data
== 0)
4487 printf (_("\n The File Name Table is empty.\n"));
4490 printf (_("\n The File Name Table (offset 0x%lx):\n"),
4491 (long)(data
- start
));
4492 printf (_(" Entry\tDir\tTime\tSize\tName\n"));
4494 while (data
< end
&& *data
!= 0)
4496 unsigned char *name
;
4499 printf (" %d\t", ++state_machine_regs
.last_file_entry
);
4501 data
+= strnlen ((char *) data
, end
- data
);
4505 READ_ULEB (val
, data
, end
);
4506 printf ("%s\t", dwarf_vmatoa ("u", val
));
4507 READ_ULEB (val
, data
, end
);
4508 printf ("%s\t", dwarf_vmatoa ("u", val
));
4509 READ_ULEB (val
, data
, end
);
4510 printf ("%s\t", dwarf_vmatoa ("u", val
));
4511 printf ("%.*s\n", (int)(end
- name
), name
);
4515 warn (_("Corrupt file name table entry\n"));
4521 /* Skip the NUL at the end of the table. */
4527 saved_linfo
= linfo
;
4530 /* Now display the statements. */
4531 if (data
>= end_of_sequence
)
4532 printf (_(" No Line Number Statements.\n"));
4535 printf (_(" Line Number Statements:\n"));
4537 while (data
< end_of_sequence
)
4539 unsigned char op_code
;
4540 dwarf_signed_vma adv
;
4543 printf (" [0x%08lx]", (long)(data
- start
));
4547 if (op_code
>= linfo
.li_opcode_base
)
4549 op_code
-= linfo
.li_opcode_base
;
4550 uladv
= (op_code
/ linfo
.li_line_range
);
4551 if (linfo
.li_max_ops_per_insn
== 1)
4553 uladv
*= linfo
.li_min_insn_length
;
4554 state_machine_regs
.address
+= uladv
;
4556 state_machine_regs
.view
= 0;
4557 printf (_(" Special opcode %d: "
4558 "advance Address by %s to 0x%s%s"),
4559 op_code
, dwarf_vmatoa ("u", uladv
),
4560 dwarf_vmatoa ("x", state_machine_regs
.address
),
4561 verbose_view
&& uladv
4562 ? _(" (reset view)") : "");
4567 = ((state_machine_regs
.op_index
+ uladv
)
4568 / linfo
.li_max_ops_per_insn
)
4569 * linfo
.li_min_insn_length
;
4571 state_machine_regs
.address
+= addrdelta
;
4572 state_machine_regs
.op_index
4573 = (state_machine_regs
.op_index
+ uladv
)
4574 % linfo
.li_max_ops_per_insn
;
4576 state_machine_regs
.view
= 0;
4577 printf (_(" Special opcode %d: "
4578 "advance Address by %s to 0x%s[%d]%s"),
4579 op_code
, dwarf_vmatoa ("u", uladv
),
4580 dwarf_vmatoa ("x", state_machine_regs
.address
),
4581 state_machine_regs
.op_index
,
4582 verbose_view
&& addrdelta
4583 ? _(" (reset view)") : "");
4585 adv
= (op_code
% linfo
.li_line_range
) + linfo
.li_line_base
;
4586 state_machine_regs
.line
+= adv
;
4587 printf (_(" and Line by %s to %d"),
4588 dwarf_vmatoa ("d", adv
), state_machine_regs
.line
);
4589 if (verbose_view
|| state_machine_regs
.view
)
4590 printf (_(" (view %u)\n"), state_machine_regs
.view
);
4593 state_machine_regs
.view
++;
4598 case DW_LNS_extended_op
:
4599 data
+= process_extended_line_op (data
,
4600 linfo
.li_default_is_stmt
,
4605 printf (_(" Copy"));
4606 if (verbose_view
|| state_machine_regs
.view
)
4607 printf (_(" (view %u)\n"), state_machine_regs
.view
);
4610 state_machine_regs
.view
++;
4613 case DW_LNS_advance_pc
:
4614 READ_ULEB (uladv
, data
, end
);
4615 if (linfo
.li_max_ops_per_insn
== 1)
4617 uladv
*= linfo
.li_min_insn_length
;
4618 state_machine_regs
.address
+= uladv
;
4620 state_machine_regs
.view
= 0;
4621 printf (_(" Advance PC by %s to 0x%s%s\n"),
4622 dwarf_vmatoa ("u", uladv
),
4623 dwarf_vmatoa ("x", state_machine_regs
.address
),
4624 verbose_view
&& uladv
4625 ? _(" (reset view)") : "");
4630 = ((state_machine_regs
.op_index
+ uladv
)
4631 / linfo
.li_max_ops_per_insn
)
4632 * linfo
.li_min_insn_length
;
4633 state_machine_regs
.address
4635 state_machine_regs
.op_index
4636 = (state_machine_regs
.op_index
+ uladv
)
4637 % linfo
.li_max_ops_per_insn
;
4639 state_machine_regs
.view
= 0;
4640 printf (_(" Advance PC by %s to 0x%s[%d]%s\n"),
4641 dwarf_vmatoa ("u", uladv
),
4642 dwarf_vmatoa ("x", state_machine_regs
.address
),
4643 state_machine_regs
.op_index
,
4644 verbose_view
&& addrdelta
4645 ? _(" (reset view)") : "");
4649 case DW_LNS_advance_line
:
4650 READ_SLEB (adv
, data
, end
);
4651 state_machine_regs
.line
+= adv
;
4652 printf (_(" Advance Line by %s to %d\n"),
4653 dwarf_vmatoa ("d", adv
),
4654 state_machine_regs
.line
);
4657 case DW_LNS_set_file
:
4658 READ_ULEB (uladv
, data
, end
);
4659 printf (_(" Set File Name to entry %s in the File Name Table\n"),
4660 dwarf_vmatoa ("u", uladv
));
4661 state_machine_regs
.file
= uladv
;
4664 case DW_LNS_set_column
:
4665 READ_ULEB (uladv
, data
, end
);
4666 printf (_(" Set column to %s\n"),
4667 dwarf_vmatoa ("u", uladv
));
4668 state_machine_regs
.column
= uladv
;
4671 case DW_LNS_negate_stmt
:
4672 adv
= state_machine_regs
.is_stmt
;
4674 printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv
));
4675 state_machine_regs
.is_stmt
= adv
;
4678 case DW_LNS_set_basic_block
:
4679 printf (_(" Set basic block\n"));
4680 state_machine_regs
.basic_block
= 1;
4683 case DW_LNS_const_add_pc
:
4684 uladv
= ((255 - linfo
.li_opcode_base
) / linfo
.li_line_range
);
4685 if (linfo
.li_max_ops_per_insn
)
4687 uladv
*= linfo
.li_min_insn_length
;
4688 state_machine_regs
.address
+= uladv
;
4690 state_machine_regs
.view
= 0;
4691 printf (_(" Advance PC by constant %s to 0x%s%s\n"),
4692 dwarf_vmatoa ("u", uladv
),
4693 dwarf_vmatoa ("x", state_machine_regs
.address
),
4694 verbose_view
&& uladv
4695 ? _(" (reset view)") : "");
4700 = ((state_machine_regs
.op_index
+ uladv
)
4701 / linfo
.li_max_ops_per_insn
)
4702 * linfo
.li_min_insn_length
;
4703 state_machine_regs
.address
4705 state_machine_regs
.op_index
4706 = (state_machine_regs
.op_index
+ uladv
)
4707 % linfo
.li_max_ops_per_insn
;
4709 state_machine_regs
.view
= 0;
4710 printf (_(" Advance PC by constant %s to 0x%s[%d]%s\n"),
4711 dwarf_vmatoa ("u", uladv
),
4712 dwarf_vmatoa ("x", state_machine_regs
.address
),
4713 state_machine_regs
.op_index
,
4714 verbose_view
&& addrdelta
4715 ? _(" (reset view)") : "");
4719 case DW_LNS_fixed_advance_pc
:
4720 SAFE_BYTE_GET_AND_INC (uladv
, data
, 2, end
);
4721 state_machine_regs
.address
+= uladv
;
4722 state_machine_regs
.op_index
= 0;
4723 printf (_(" Advance PC by fixed size amount %s to 0x%s\n"),
4724 dwarf_vmatoa ("u", uladv
),
4725 dwarf_vmatoa ("x", state_machine_regs
.address
));
4726 /* Do NOT reset view. */
4729 case DW_LNS_set_prologue_end
:
4730 printf (_(" Set prologue_end to true\n"));
4733 case DW_LNS_set_epilogue_begin
:
4734 printf (_(" Set epilogue_begin to true\n"));
4737 case DW_LNS_set_isa
:
4738 READ_ULEB (uladv
, data
, end
);
4739 printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv
));
4743 printf (_(" Unknown opcode %d with operands: "), op_code
);
4745 if (standard_opcodes
!= NULL
)
4746 for (i
= standard_opcodes
[op_code
- 1]; i
> 0 ; --i
)
4748 READ_ULEB (uladv
, data
, end
);
4749 printf ("0x%s%s", dwarf_vmatoa ("x", uladv
),
4750 i
== 1 ? "" : ", ");
4765 unsigned char *name
;
4766 unsigned int directory_index
;
4767 unsigned int modification_date
;
4768 unsigned int length
;
4771 /* Output a decoded representation of the .debug_line section. */
4774 display_debug_lines_decoded (struct dwarf_section
* section
,
4775 unsigned char * start
,
4776 unsigned char * data
,
4777 unsigned char * end
,
4780 static DWARF2_Internal_LineInfo saved_linfo
;
4782 introduce (section
, false);
4786 /* This loop amounts to one iteration per compilation unit. */
4787 DWARF2_Internal_LineInfo linfo
;
4788 unsigned char *standard_opcodes
;
4789 unsigned char *end_of_sequence
;
4791 File_Entry
*file_table
= NULL
;
4792 unsigned int n_files
= 0;
4793 unsigned char **directory_table
= NULL
;
4794 dwarf_vma n_directories
= 0;
4796 if (startswith (section
->name
, ".debug_line.")
4797 /* Note: the following does not apply to .debug_line.dwo sections.
4798 These are full debug_line sections. */
4799 && strcmp (section
->name
, ".debug_line.dwo") != 0)
4801 /* See comment in display_debug_lines_raw(). */
4802 end_of_sequence
= end
;
4803 standard_opcodes
= NULL
;
4804 linfo
= saved_linfo
;
4805 /* PR 17531: file: 0522b371. */
4806 if (linfo
.li_line_range
== 0)
4808 warn (_("Partial .debug_line. section encountered without a prior full .debug_line section\n"));
4811 reset_state_machine (linfo
.li_default_is_stmt
);
4815 unsigned char *hdrptr
;
4817 if ((hdrptr
= read_debug_line_header (section
, data
, end
, & linfo
,
4818 & end_of_sequence
)) == NULL
)
4821 /* PR 17531: file: 0522b371. */
4822 if (linfo
.li_line_range
== 0)
4824 warn (_("Line range of 0 is invalid, using 1 instead\n"));
4825 linfo
.li_line_range
= 1;
4827 reset_state_machine (linfo
.li_default_is_stmt
);
4829 /* Save a pointer to the contents of the Opcodes table. */
4830 standard_opcodes
= hdrptr
;
4832 /* Traverse the Directory table just to count entries. */
4833 data
= standard_opcodes
+ linfo
.li_opcode_base
- 1;
4837 warn (_("opcode base of %d extends beyond end of section\n"),
4838 linfo
.li_opcode_base
);
4842 if (linfo
.li_version
>= 5)
4844 unsigned char *format_start
, format_count
, *format
;
4845 dwarf_vma formati
, entryi
;
4847 load_debug_section_with_follow (line_str
, fileptr
);
4849 /* Skip directories format. */
4850 SAFE_BYTE_GET_AND_INC (format_count
, data
, 1, end
);
4851 if (do_checks
&& format_count
> 1)
4852 warn (_("Unexpectedly large number of columns in the directory name table (%u)\n"),
4854 format_start
= data
;
4855 for (formati
= 0; formati
< format_count
; formati
++)
4857 SKIP_ULEB (data
, end
);
4858 SKIP_ULEB (data
, end
);
4861 READ_ULEB (n_directories
, data
, end
);
4864 warn (_("Corrupt directories list\n"));
4868 if (n_directories
== 0)
4869 directory_table
= NULL
;
4871 directory_table
= (unsigned char **)
4872 xmalloc (n_directories
* sizeof (unsigned char *));
4874 for (entryi
= 0; entryi
< n_directories
; entryi
++)
4876 unsigned char **pathp
= &directory_table
[entryi
];
4878 format
= format_start
;
4879 for (formati
= 0; formati
< format_count
; formati
++)
4881 dwarf_vma content_type
, form
;
4884 READ_ULEB (content_type
, format
, end
);
4885 READ_ULEB (form
, format
, end
);
4888 warn (_("Corrupt directories list\n"));
4891 switch (content_type
)
4896 case DW_FORM_string
:
4899 case DW_FORM_line_strp
:
4900 SAFE_BYTE_GET (uvalue
, data
, linfo
.li_offset_size
,
4902 /* Remove const by the cast. */
4903 *pathp
= (unsigned char *)
4904 fetch_indirect_line_string (uvalue
);
4909 data
= read_and_display_attr_value (0, form
, 0, start
,
4911 linfo
.li_offset_size
,
4918 warn (_("Corrupt directories list\n"));
4923 /* Skip files format. */
4924 SAFE_BYTE_GET_AND_INC (format_count
, data
, 1, end
);
4925 if (do_checks
&& format_count
> 5)
4926 warn (_("Unexpectedly large number of columns in the file name table (%u)\n"),
4928 format_start
= data
;
4929 for (formati
= 0; formati
< format_count
; formati
++)
4931 SKIP_ULEB (data
, end
);
4932 SKIP_ULEB (data
, end
);
4935 READ_ULEB (n_files
, data
, end
);
4936 if (data
>= end
&& n_files
> 0)
4938 warn (_("Corrupt file name list\n"));
4945 file_table
= (File_Entry
*) xcalloc (1, n_files
4946 * sizeof (File_Entry
));
4948 for (entryi
= 0; entryi
< n_files
; entryi
++)
4950 File_Entry
*file
= &file_table
[entryi
];
4952 format
= format_start
;
4953 for (formati
= 0; formati
< format_count
; formati
++)
4955 dwarf_vma content_type
, form
;
4959 READ_ULEB (content_type
, format
, end
);
4960 READ_ULEB (form
, format
, end
);
4963 warn (_("Corrupt file name list\n"));
4966 switch (content_type
)
4971 case DW_FORM_string
:
4974 case DW_FORM_line_strp
:
4975 SAFE_BYTE_GET (uvalue
, data
, linfo
.li_offset_size
,
4977 /* Remove const by the cast. */
4978 file
->name
= (unsigned char *)
4979 fetch_indirect_line_string (uvalue
);
4983 case DW_LNCT_directory_index
:
4987 SAFE_BYTE_GET (file
->directory_index
, data
, 1,
4991 SAFE_BYTE_GET (file
->directory_index
, data
, 2,
4996 READ_ULEB (file
->directory_index
, tmp
, end
);
5001 data
= read_and_display_attr_value (0, form
, 0, start
,
5003 linfo
.li_offset_size
,
5010 warn (_("Corrupt file name list\n"));
5019 unsigned char *ptr_directory_table
= data
;
5021 while (data
< end
&& *data
!= 0)
5023 data
+= strnlen ((char *) data
, end
- data
);
5032 warn (_("directory table ends unexpectedly\n"));
5037 /* Go through the directory table again to save the directories. */
5038 directory_table
= (unsigned char **)
5039 xmalloc (n_directories
* sizeof (unsigned char *));
5042 while (*ptr_directory_table
!= 0)
5044 directory_table
[i
] = ptr_directory_table
;
5046 += strlen ((char *) ptr_directory_table
) + 1;
5050 /* Skip the NUL at the end of the table. */
5053 /* Traverse the File Name table just to count the entries. */
5054 if (data
< end
&& *data
!= 0)
5056 unsigned char *ptr_file_name_table
= data
;
5058 while (data
< end
&& *data
!= 0)
5060 /* Skip Name, directory index, last modification
5061 time and length of file. */
5062 data
+= strnlen ((char *) data
, end
- data
);
5065 SKIP_ULEB (data
, end
);
5066 SKIP_ULEB (data
, end
);
5067 SKIP_ULEB (data
, end
);
5073 warn (_("file table ends unexpectedly\n"));
5078 /* Go through the file table again to save the strings. */
5079 file_table
= (File_Entry
*) xmalloc (n_files
* sizeof (File_Entry
));
5082 while (*ptr_file_name_table
!= 0)
5084 file_table
[i
].name
= ptr_file_name_table
;
5086 += strlen ((char *) ptr_file_name_table
) + 1;
5088 /* We are not interested in directory, time or size. */
5089 READ_ULEB (file_table
[i
].directory_index
,
5090 ptr_file_name_table
, end
);
5091 READ_ULEB (file_table
[i
].modification_date
,
5092 ptr_file_name_table
, end
);
5093 READ_ULEB (file_table
[i
].length
,
5094 ptr_file_name_table
, end
);
5100 /* Skip the NUL at the end of the table. */
5104 /* Print the Compilation Unit's name and a header. */
5105 if (file_table
== NULL
)
5106 printf (_("CU: No directory table\n"));
5107 else if (directory_table
== NULL
)
5108 printf (_("CU: %s:\n"), file_table
[0].name
);
5111 unsigned int ix
= file_table
[0].directory_index
;
5112 const char *directory
;
5117 else if (n_directories
== 0)
5118 directory
= _("<unknown>");
5119 else if (ix
> n_directories
)
5121 warn (_("directory index %u > number of directories %s\n"),
5122 ix
, dwarf_vmatoa ("u", n_directories
));
5123 directory
= _("<corrupt>");
5126 directory
= (char *) directory_table
[ix
- 1];
5128 if (do_wide
|| strlen (directory
) < 76)
5129 printf (_("CU: %s/%s:\n"), directory
, file_table
[0].name
);
5131 printf ("%s:\n", file_table
[0].name
);
5135 printf (_("File name Line number Starting address View Stmt\n"));
5137 printf (_("CU: Empty file name table\n"));
5138 saved_linfo
= linfo
;
5141 /* This loop iterates through the Dwarf Line Number Program. */
5142 while (data
< end_of_sequence
)
5144 unsigned char op_code
;
5147 unsigned long int uladv
;
5148 int is_special_opcode
= 0;
5153 if (op_code
>= linfo
.li_opcode_base
)
5155 op_code
-= linfo
.li_opcode_base
;
5156 uladv
= (op_code
/ linfo
.li_line_range
);
5157 if (linfo
.li_max_ops_per_insn
== 1)
5159 uladv
*= linfo
.li_min_insn_length
;
5160 state_machine_regs
.address
+= uladv
;
5162 state_machine_regs
.view
= 0;
5167 = ((state_machine_regs
.op_index
+ uladv
)
5168 / linfo
.li_max_ops_per_insn
)
5169 * linfo
.li_min_insn_length
;
5170 state_machine_regs
.address
5172 state_machine_regs
.op_index
5173 = (state_machine_regs
.op_index
+ uladv
)
5174 % linfo
.li_max_ops_per_insn
;
5176 state_machine_regs
.view
= 0;
5179 adv
= (op_code
% linfo
.li_line_range
) + linfo
.li_line_base
;
5180 state_machine_regs
.line
+= adv
;
5181 is_special_opcode
= 1;
5182 /* Increment view after printing this row. */
5187 case DW_LNS_extended_op
:
5189 unsigned int ext_op_code_len
;
5190 unsigned char ext_op_code
;
5191 unsigned char *op_code_end
;
5192 unsigned char *op_code_data
= data
;
5194 READ_ULEB (ext_op_code_len
, op_code_data
, end_of_sequence
);
5195 op_code_end
= op_code_data
+ ext_op_code_len
;
5196 if (ext_op_code_len
== 0 || op_code_end
> end_of_sequence
)
5198 warn (_("Badly formed extended line op encountered!\n"));
5201 ext_op_code
= *op_code_data
++;
5205 switch (ext_op_code
)
5207 case DW_LNE_end_sequence
:
5208 /* Reset stuff after printing this row. */
5210 case DW_LNE_set_address
:
5211 SAFE_BYTE_GET_AND_INC (state_machine_regs
.address
,
5213 op_code_end
- op_code_data
,
5215 state_machine_regs
.op_index
= 0;
5216 state_machine_regs
.view
= 0;
5218 case DW_LNE_define_file
:
5219 file_table
= (File_Entry
*) xrealloc
5220 (file_table
, (n_files
+ 1) * sizeof (File_Entry
));
5222 ++state_machine_regs
.last_file_entry
;
5223 /* Source file name. */
5224 file_table
[n_files
].name
= op_code_data
;
5225 op_code_data
+= strlen ((char *) op_code_data
) + 1;
5226 /* Directory index. */
5227 READ_ULEB (file_table
[n_files
].directory_index
,
5228 op_code_data
, op_code_end
);
5229 /* Last modification time. */
5230 READ_ULEB (file_table
[n_files
].modification_date
,
5231 op_code_data
, op_code_end
);
5233 READ_ULEB (file_table
[n_files
].length
,
5234 op_code_data
, op_code_end
);
5238 case DW_LNE_set_discriminator
:
5239 case DW_LNE_HP_set_sequence
:
5240 /* Simply ignored. */
5244 printf (_("UNKNOWN (%u): length %ld\n"),
5245 ext_op_code
, (long int) (op_code_data
- data
));
5252 /* Increment view after printing this row. */
5255 case DW_LNS_advance_pc
:
5256 READ_ULEB (uladv
, data
, end
);
5257 if (linfo
.li_max_ops_per_insn
== 1)
5259 uladv
*= linfo
.li_min_insn_length
;
5260 state_machine_regs
.address
+= uladv
;
5262 state_machine_regs
.view
= 0;
5267 = ((state_machine_regs
.op_index
+ uladv
)
5268 / linfo
.li_max_ops_per_insn
)
5269 * linfo
.li_min_insn_length
;
5270 state_machine_regs
.address
5272 state_machine_regs
.op_index
5273 = (state_machine_regs
.op_index
+ uladv
)
5274 % linfo
.li_max_ops_per_insn
;
5276 state_machine_regs
.view
= 0;
5280 case DW_LNS_advance_line
:
5281 READ_SLEB (adv
, data
, end
);
5282 state_machine_regs
.line
+= adv
;
5285 case DW_LNS_set_file
:
5286 READ_ULEB (uladv
, data
, end
);
5287 state_machine_regs
.file
= uladv
;
5290 unsigned file
= state_machine_regs
.file
- 1;
5293 if (file_table
== NULL
|| n_files
== 0)
5294 printf (_("\n [Use file table entry %d]\n"), file
);
5296 else if (file
>= n_files
)
5298 warn (_("file index %u > number of files %u\n"), file
+ 1, n_files
);
5299 printf (_("\n <over large file table index %u>"), file
);
5301 else if ((dir
= file_table
[file
].directory_index
) == 0)
5302 /* If directory index is 0, that means current directory. */
5303 printf ("\n./%s:[++]\n", file_table
[file
].name
);
5304 else if (directory_table
== NULL
|| n_directories
== 0)
5305 printf (_("\n [Use file %s in directory table entry %d]\n"),
5306 file_table
[file
].name
, dir
);
5308 else if (dir
> n_directories
)
5310 warn (_("directory index %u > number of directories %s\n"),
5311 dir
, dwarf_vmatoa ("u", n_directories
));
5312 printf (_("\n <over large directory table entry %u>\n"), dir
);
5315 printf ("\n%s/%s:\n",
5316 /* The directory index starts counting at 1. */
5317 directory_table
[dir
- 1], file_table
[file
].name
);
5321 case DW_LNS_set_column
:
5322 READ_ULEB (uladv
, data
, end
);
5323 state_machine_regs
.column
= uladv
;
5326 case DW_LNS_negate_stmt
:
5327 adv
= state_machine_regs
.is_stmt
;
5329 state_machine_regs
.is_stmt
= adv
;
5332 case DW_LNS_set_basic_block
:
5333 state_machine_regs
.basic_block
= 1;
5336 case DW_LNS_const_add_pc
:
5337 uladv
= ((255 - linfo
.li_opcode_base
) / linfo
.li_line_range
);
5338 if (linfo
.li_max_ops_per_insn
== 1)
5340 uladv
*= linfo
.li_min_insn_length
;
5341 state_machine_regs
.address
+= uladv
;
5343 state_machine_regs
.view
= 0;
5348 = ((state_machine_regs
.op_index
+ uladv
)
5349 / linfo
.li_max_ops_per_insn
)
5350 * linfo
.li_min_insn_length
;
5351 state_machine_regs
.address
5353 state_machine_regs
.op_index
5354 = (state_machine_regs
.op_index
+ uladv
)
5355 % linfo
.li_max_ops_per_insn
;
5357 state_machine_regs
.view
= 0;
5361 case DW_LNS_fixed_advance_pc
:
5362 SAFE_BYTE_GET_AND_INC (uladv
, data
, 2, end
);
5363 state_machine_regs
.address
+= uladv
;
5364 state_machine_regs
.op_index
= 0;
5365 /* Do NOT reset view. */
5368 case DW_LNS_set_prologue_end
:
5371 case DW_LNS_set_epilogue_begin
:
5374 case DW_LNS_set_isa
:
5375 READ_ULEB (uladv
, data
, end
);
5376 printf (_(" Set ISA to %lu\n"), uladv
);
5380 printf (_(" Unknown opcode %d with operands: "), op_code
);
5382 if (standard_opcodes
!= NULL
)
5383 for (i
= standard_opcodes
[op_code
- 1]; i
> 0 ; --i
)
5387 READ_ULEB (val
, data
, end
);
5388 printf ("0x%s%s", dwarf_vmatoa ("x", val
),
5389 i
== 1 ? "" : ", ");
5395 /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row
5396 to the DWARF address/line matrix. */
5397 if ((is_special_opcode
) || (xop
== -DW_LNE_end_sequence
)
5398 || (xop
== DW_LNS_copy
))
5400 const unsigned int MAX_FILENAME_LENGTH
= 35;
5402 char *newFileName
= NULL
;
5403 size_t fileNameLength
;
5407 unsigned indx
= state_machine_regs
.file
- 1;
5409 if (indx
>= n_files
)
5411 warn (_("corrupt file index %u encountered\n"), indx
);
5412 fileName
= _("<corrupt>");
5415 fileName
= (char *) file_table
[indx
].name
;
5418 fileName
= _("<unknown>");
5420 fileNameLength
= strlen (fileName
);
5422 if ((fileNameLength
> MAX_FILENAME_LENGTH
) && (!do_wide
))
5424 newFileName
= (char *) xmalloc (MAX_FILENAME_LENGTH
+ 1);
5425 /* Truncate file name */
5426 strncpy (newFileName
,
5427 fileName
+ fileNameLength
- MAX_FILENAME_LENGTH
,
5428 MAX_FILENAME_LENGTH
+ 1);
5429 /* FIXME: This is to pacify gcc-10 which can warn that the
5430 strncpy above might leave a non-NUL terminated string
5431 in newFileName. It won't, but gcc's analysis doesn't
5432 quite go far enough to discover this. */
5433 newFileName
[MAX_FILENAME_LENGTH
] = 0;
5437 newFileName
= (char *) xmalloc (fileNameLength
+ 1);
5438 strncpy (newFileName
, fileName
, fileNameLength
+ 1);
5441 /* A row with end_seq set to true has a meaningful address, but
5442 the other information in the same row is not significant.
5443 In such a row, print line as "-", and don't print
5445 if (!do_wide
|| (fileNameLength
<= MAX_FILENAME_LENGTH
))
5447 if (linfo
.li_max_ops_per_insn
== 1)
5449 if (xop
== -DW_LNE_end_sequence
)
5450 printf ("%-35s %11s %#18" DWARF_VMA_FMT
"x",
5452 state_machine_regs
.address
);
5454 printf ("%-35s %11d %#18" DWARF_VMA_FMT
"x",
5455 newFileName
, state_machine_regs
.line
,
5456 state_machine_regs
.address
);
5460 if (xop
== -DW_LNE_end_sequence
)
5461 printf ("%-35s %11s %#18" DWARF_VMA_FMT
"x[%d]",
5463 state_machine_regs
.address
,
5464 state_machine_regs
.op_index
);
5466 printf ("%-35s %11d %#18" DWARF_VMA_FMT
"x[%d]",
5467 newFileName
, state_machine_regs
.line
,
5468 state_machine_regs
.address
,
5469 state_machine_regs
.op_index
);
5474 if (linfo
.li_max_ops_per_insn
== 1)
5476 if (xop
== -DW_LNE_end_sequence
)
5477 printf ("%s %11s %#18" DWARF_VMA_FMT
"x",
5479 state_machine_regs
.address
);
5481 printf ("%s %11d %#18" DWARF_VMA_FMT
"x",
5482 newFileName
, state_machine_regs
.line
,
5483 state_machine_regs
.address
);
5487 if (xop
== -DW_LNE_end_sequence
)
5488 printf ("%s %11s %#18" DWARF_VMA_FMT
"x[%d]",
5490 state_machine_regs
.address
,
5491 state_machine_regs
.op_index
);
5493 printf ("%s %11d %#18" DWARF_VMA_FMT
"x[%d]",
5494 newFileName
, state_machine_regs
.line
,
5495 state_machine_regs
.address
,
5496 state_machine_regs
.op_index
);
5500 if (xop
!= -DW_LNE_end_sequence
)
5502 if (state_machine_regs
.view
)
5503 printf (" %6u", state_machine_regs
.view
);
5507 if (state_machine_regs
.is_stmt
)
5512 state_machine_regs
.view
++;
5514 if (xop
== -DW_LNE_end_sequence
)
5516 reset_state_machine (linfo
.li_default_is_stmt
);
5531 if (directory_table
)
5533 free (directory_table
);
5534 directory_table
= NULL
;
5545 display_debug_lines (struct dwarf_section
*section
, void *file
)
5547 unsigned char *data
= section
->start
;
5548 unsigned char *end
= data
+ section
->size
;
5550 int retValDecoded
= 1;
5552 if (do_debug_lines
== 0)
5553 do_debug_lines
|= FLAG_DEBUG_LINES_RAW
;
5555 if (do_debug_lines
& FLAG_DEBUG_LINES_RAW
)
5556 retValRaw
= display_debug_lines_raw (section
, data
, end
, file
);
5558 if (do_debug_lines
& FLAG_DEBUG_LINES_DECODED
)
5559 retValDecoded
= display_debug_lines_decoded (section
, data
, data
, end
, file
);
5561 if (!retValRaw
|| !retValDecoded
)
5568 find_debug_info_for_offset (unsigned long offset
)
5572 if (num_debug_info_entries
== DEBUG_INFO_UNAVAILABLE
)
5575 for (i
= 0; i
< num_debug_info_entries
; i
++)
5576 if (debug_information
[i
].cu_offset
== offset
)
5577 return debug_information
+ i
;
5583 get_gdb_index_symbol_kind_name (gdb_index_symbol_kind kind
)
5585 /* See gdb/gdb-index.h. */
5586 static const char * const kinds
[] =
5598 return _ (kinds
[kind
]);
5602 display_debug_pubnames_worker (struct dwarf_section
*section
,
5603 void *file ATTRIBUTE_UNUSED
,
5606 DWARF2_Internal_PubNames names
;
5607 unsigned char *start
= section
->start
;
5608 unsigned char *end
= start
+ section
->size
;
5610 /* It does not matter if this load fails,
5611 we test for that later on. */
5612 load_debug_info (file
);
5614 introduce (section
, false);
5618 unsigned char *data
;
5619 unsigned long sec_off
= start
- section
->start
;
5620 unsigned int offset_size
;
5622 SAFE_BYTE_GET_AND_INC (names
.pn_length
, start
, 4, end
);
5623 if (names
.pn_length
== 0xffffffff)
5625 SAFE_BYTE_GET_AND_INC (names
.pn_length
, start
, 8, end
);
5631 if (names
.pn_length
> (size_t) (end
- start
))
5633 warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
5636 dwarf_vmatoa ("x", names
.pn_length
));
5641 start
+= names
.pn_length
;
5643 SAFE_BYTE_GET_AND_INC (names
.pn_version
, data
, 2, start
);
5644 SAFE_BYTE_GET_AND_INC (names
.pn_offset
, data
, offset_size
, start
);
5646 if (num_debug_info_entries
!= DEBUG_INFO_UNAVAILABLE
5647 && num_debug_info_entries
> 0
5648 && find_debug_info_for_offset (names
.pn_offset
) == NULL
)
5649 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
5650 (unsigned long) names
.pn_offset
, section
->name
);
5652 SAFE_BYTE_GET_AND_INC (names
.pn_size
, data
, offset_size
, start
);
5654 printf (_(" Length: %ld\n"),
5655 (long) names
.pn_length
);
5656 printf (_(" Version: %d\n"),
5658 printf (_(" Offset into .debug_info section: 0x%lx\n"),
5659 (unsigned long) names
.pn_offset
);
5660 printf (_(" Size of area in .debug_info section: %ld\n"),
5661 (long) names
.pn_size
);
5663 if (names
.pn_version
!= 2 && names
.pn_version
!= 3)
5665 static int warned
= 0;
5669 warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
5677 printf (_("\n Offset Kind Name\n"));
5679 printf (_("\n Offset\tName\n"));
5683 bfd_size_type maxprint
;
5686 SAFE_BYTE_GET_AND_INC (offset
, data
, offset_size
, start
);
5693 maxprint
= (start
- data
) - 1;
5697 unsigned int kind_data
;
5698 gdb_index_symbol_kind kind
;
5699 const char *kind_name
;
5702 SAFE_BYTE_GET_AND_INC (kind_data
, data
, 1, start
);
5704 /* GCC computes the kind as the upper byte in the CU index
5705 word, and then right shifts it by the CU index size.
5706 Left shift KIND to where the gdb-index.h accessor macros
5708 kind_data
<<= GDB_INDEX_CU_BITSIZE
;
5709 kind
= GDB_INDEX_SYMBOL_KIND_VALUE (kind_data
);
5710 kind_name
= get_gdb_index_symbol_kind_name (kind
);
5711 is_static
= GDB_INDEX_SYMBOL_STATIC_VALUE (kind_data
);
5712 printf (" %-6lx %s,%-10s %.*s\n",
5713 (unsigned long) offset
, is_static
? _("s") : _("g"),
5714 kind_name
, (int) maxprint
, data
);
5717 printf (" %-6lx\t%.*s\n",
5718 (unsigned long) offset
, (int) maxprint
, data
);
5720 data
+= strnlen ((char *) data
, maxprint
);
5733 display_debug_pubnames (struct dwarf_section
*section
, void *file
)
5735 return display_debug_pubnames_worker (section
, file
, 0);
5739 display_debug_gnu_pubnames (struct dwarf_section
*section
, void *file
)
5741 return display_debug_pubnames_worker (section
, file
, 1);
5745 display_debug_macinfo (struct dwarf_section
*section
,
5746 void *file ATTRIBUTE_UNUSED
)
5748 unsigned char *start
= section
->start
;
5749 unsigned char *end
= start
+ section
->size
;
5750 unsigned char *curr
= start
;
5751 enum dwarf_macinfo_record_type op
;
5753 introduce (section
, false);
5757 unsigned int lineno
;
5758 const unsigned char *string
;
5760 op
= (enum dwarf_macinfo_record_type
) *curr
;
5765 case DW_MACINFO_start_file
:
5767 unsigned int filenum
;
5769 READ_ULEB (lineno
, curr
, end
);
5770 READ_ULEB (filenum
, curr
, end
);
5771 printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"),
5776 case DW_MACINFO_end_file
:
5777 printf (_(" DW_MACINFO_end_file\n"));
5780 case DW_MACINFO_define
:
5781 READ_ULEB (lineno
, curr
, end
);
5783 curr
+= strnlen ((char *) string
, end
- string
) + 1;
5784 printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"),
5788 case DW_MACINFO_undef
:
5789 READ_ULEB (lineno
, curr
, end
);
5791 curr
+= strnlen ((char *) string
, end
- string
) + 1;
5792 printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"),
5796 case DW_MACINFO_vendor_ext
:
5798 unsigned int constant
;
5800 READ_ULEB (constant
, curr
, end
);
5802 curr
+= strnlen ((char *) string
, end
- string
) + 1;
5803 printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"),
5813 /* Given LINE_OFFSET into the .debug_line section, attempt to return
5814 filename and dirname corresponding to file name table entry with index
5815 FILEIDX. Return NULL on failure. */
5817 static unsigned char *
5818 get_line_filename_and_dirname (dwarf_vma line_offset
,
5820 unsigned char **dir_name
)
5822 struct dwarf_section
*section
= &debug_displays
[line
].section
;
5823 unsigned char *hdrptr
, *dirtable
, *file_name
;
5824 unsigned int offset_size
, initial_length_size
;
5825 unsigned int version
, opcode_base
;
5826 dwarf_vma length
, diridx
;
5827 const unsigned char * end
;
5830 if (section
->start
== NULL
5831 || line_offset
>= section
->size
5835 hdrptr
= section
->start
+ line_offset
;
5836 end
= section
->start
+ section
->size
;
5838 SAFE_BYTE_GET_AND_INC (length
, hdrptr
, 4, end
);
5839 if (length
== 0xffffffff)
5841 /* This section is 64-bit DWARF 3. */
5842 SAFE_BYTE_GET_AND_INC (length
, hdrptr
, 8, end
);
5844 initial_length_size
= 12;
5849 initial_length_size
= 4;
5851 if (length
+ initial_length_size
< length
5852 || length
+ initial_length_size
> section
->size
)
5855 SAFE_BYTE_GET_AND_INC (version
, hdrptr
, 2, end
);
5856 if (version
!= 2 && version
!= 3 && version
!= 4)
5858 hdrptr
+= offset_size
+ 1;/* Skip prologue_length and min_insn_length. */
5860 hdrptr
++; /* Skip max_ops_per_insn. */
5861 hdrptr
+= 3; /* Skip default_is_stmt, line_base, line_range. */
5863 SAFE_BYTE_GET_AND_INC (opcode_base
, hdrptr
, 1, end
);
5864 if (opcode_base
== 0)
5867 hdrptr
+= opcode_base
- 1;
5872 /* Skip over dirname table. */
5873 while (*hdrptr
!= '\0')
5875 hdrptr
+= strnlen ((char *) hdrptr
, end
- hdrptr
) + 1;
5879 hdrptr
++; /* Skip the NUL at the end of the table. */
5881 /* Now skip over preceding filename table entries. */
5882 for (; hdrptr
< end
&& *hdrptr
!= '\0' && fileidx
> 1; fileidx
--)
5884 hdrptr
+= strnlen ((char *) hdrptr
, end
- hdrptr
) + 1;
5885 SKIP_ULEB (hdrptr
, end
);
5886 SKIP_ULEB (hdrptr
, end
);
5887 SKIP_ULEB (hdrptr
, end
);
5889 if (hdrptr
>= end
|| *hdrptr
== '\0')
5893 hdrptr
+= strnlen ((char *) hdrptr
, end
- hdrptr
) + 1;
5896 READ_ULEB (diridx
, hdrptr
, end
);
5899 for (; dirtable
< end
&& *dirtable
!= '\0' && diridx
> 1; diridx
--)
5900 dirtable
+= strnlen ((char *) dirtable
, end
- dirtable
) + 1;
5901 if (dirtable
>= end
|| *dirtable
== '\0')
5903 *dir_name
= dirtable
;
5908 display_debug_macro (struct dwarf_section
*section
,
5911 unsigned char *start
= section
->start
;
5912 unsigned char *end
= start
+ section
->size
;
5913 unsigned char *curr
= start
;
5914 unsigned char *extended_op_buf
[256];
5915 bool is_dwo
= false;
5916 const char *suffix
= strrchr (section
->name
, '.');
5918 if (suffix
&& strcmp (suffix
, ".dwo") == 0)
5921 load_debug_section_with_follow (str
, file
);
5922 load_debug_section_with_follow (line
, file
);
5923 load_debug_section_with_follow (str_index
, file
);
5925 introduce (section
, false);
5929 unsigned int lineno
, version
, flags
;
5930 unsigned int offset_size
;
5931 const unsigned char *string
;
5932 dwarf_vma line_offset
= 0, sec_offset
= curr
- start
, offset
;
5933 unsigned char **extended_ops
= NULL
;
5935 SAFE_BYTE_GET_AND_INC (version
, curr
, 2, end
);
5936 if (version
!= 4 && version
!= 5)
5938 error (_("Expected to find a version number of 4 or 5 in section %s but found %d instead\n"),
5939 section
->name
, version
);
5943 SAFE_BYTE_GET_AND_INC (flags
, curr
, 1, end
);
5944 offset_size
= (flags
& 1) ? 8 : 4;
5945 printf (_(" Offset: 0x%lx\n"),
5946 (unsigned long) sec_offset
);
5947 printf (_(" Version: %d\n"), version
);
5948 printf (_(" Offset size: %d\n"), offset_size
);
5951 SAFE_BYTE_GET_AND_INC (line_offset
, curr
, offset_size
, end
);
5952 printf (_(" Offset into .debug_line: 0x%lx\n"),
5953 (unsigned long) line_offset
);
5957 unsigned int i
, count
, op
;
5960 SAFE_BYTE_GET_AND_INC (count
, curr
, 1, end
);
5962 memset (extended_op_buf
, 0, sizeof (extended_op_buf
));
5963 extended_ops
= extended_op_buf
;
5966 printf (_(" Extension opcode arguments:\n"));
5967 for (i
= 0; i
< count
; i
++)
5969 SAFE_BYTE_GET_AND_INC (op
, curr
, 1, end
);
5970 extended_ops
[op
] = curr
;
5971 READ_ULEB (nargs
, curr
, end
);
5973 printf (_(" DW_MACRO_%02x has no arguments\n"), op
);
5976 printf (_(" DW_MACRO_%02x arguments: "), op
);
5977 for (n
= 0; n
< nargs
; n
++)
5981 SAFE_BYTE_GET_AND_INC (form
, curr
, 1, end
);
5982 printf ("%s%s", get_FORM_name (form
),
5983 n
== nargs
- 1 ? "\n" : ", ");
5993 case DW_FORM_block1
:
5994 case DW_FORM_block2
:
5995 case DW_FORM_block4
:
5997 case DW_FORM_string
:
5999 case DW_FORM_sec_offset
:
6002 error (_("Invalid extension opcode form %s\n"),
6003 get_FORM_name (form
));
6019 error (_(".debug_macro section not zero terminated\n"));
6023 SAFE_BYTE_GET_AND_INC (op
, curr
, 1, end
);
6029 case DW_MACRO_define
:
6030 READ_ULEB (lineno
, curr
, end
);
6032 curr
+= strnlen ((char *) string
, end
- string
) + 1;
6033 printf (_(" DW_MACRO_define - lineno : %d macro : %s\n"),
6037 case DW_MACRO_undef
:
6038 READ_ULEB (lineno
, curr
, end
);
6040 curr
+= strnlen ((char *) string
, end
- string
) + 1;
6041 printf (_(" DW_MACRO_undef - lineno : %d macro : %s\n"),
6045 case DW_MACRO_start_file
:
6047 unsigned int filenum
;
6048 unsigned char *file_name
= NULL
, *dir_name
= NULL
;
6050 READ_ULEB (lineno
, curr
, end
);
6051 READ_ULEB (filenum
, curr
, end
);
6053 if ((flags
& 2) == 0)
6054 error (_("DW_MACRO_start_file used, but no .debug_line offset provided.\n"));
6057 = get_line_filename_and_dirname (line_offset
, filenum
,
6059 if (file_name
== NULL
)
6060 printf (_(" DW_MACRO_start_file - lineno: %d filenum: %d\n"),
6063 printf (_(" DW_MACRO_start_file - lineno: %d filenum: %d filename: %s%s%s\n"),
6065 dir_name
!= NULL
? (const char *) dir_name
: "",
6066 dir_name
!= NULL
? "/" : "", file_name
);
6070 case DW_MACRO_end_file
:
6071 printf (_(" DW_MACRO_end_file\n"));
6074 case DW_MACRO_define_strp
:
6075 READ_ULEB (lineno
, curr
, end
);
6076 if (version
== 4 && is_dwo
)
6077 READ_ULEB (offset
, curr
, end
);
6079 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6080 string
= fetch_indirect_string (offset
);
6081 printf (_(" DW_MACRO_define_strp - lineno : %d macro : %s\n"),
6085 case DW_MACRO_undef_strp
:
6086 READ_ULEB (lineno
, curr
, end
);
6087 if (version
== 4 && is_dwo
)
6088 READ_ULEB (offset
, curr
, end
);
6090 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6091 string
= fetch_indirect_string (offset
);
6092 printf (_(" DW_MACRO_undef_strp - lineno : %d macro : %s\n"),
6096 case DW_MACRO_import
:
6097 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6098 printf (_(" DW_MACRO_import - offset : 0x%lx\n"),
6099 (unsigned long) offset
);
6102 case DW_MACRO_define_sup
:
6103 READ_ULEB (lineno
, curr
, end
);
6104 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6105 printf (_(" DW_MACRO_define_sup - lineno : %d macro offset : 0x%lx\n"),
6106 lineno
, (unsigned long) offset
);
6109 case DW_MACRO_undef_sup
:
6110 READ_ULEB (lineno
, curr
, end
);
6111 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6112 printf (_(" DW_MACRO_undef_sup - lineno : %d macro offset : 0x%lx\n"),
6113 lineno
, (unsigned long) offset
);
6116 case DW_MACRO_import_sup
:
6117 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6118 printf (_(" DW_MACRO_import_sup - offset : 0x%lx\n"),
6119 (unsigned long) offset
);
6122 case DW_MACRO_define_strx
:
6123 case DW_MACRO_undef_strx
:
6124 READ_ULEB (lineno
, curr
, end
);
6125 READ_ULEB (offset
, curr
, end
);
6126 string
= (const unsigned char *)
6127 fetch_indexed_string (offset
, NULL
, offset_size
, false);
6128 if (op
== DW_MACRO_define_strx
)
6129 printf (" DW_MACRO_define_strx ");
6131 printf (" DW_MACRO_undef_strx ");
6133 printf (_("(with offset %s) "), dwarf_vmatoa ("x", offset
));
6134 printf (_("lineno : %d macro : %s\n"),
6139 if (op
>= DW_MACRO_lo_user
&& op
<= DW_MACRO_hi_user
)
6141 printf (_(" <Target Specific macro op: %#x - UNHANDLED"), op
);
6145 if (extended_ops
== NULL
|| extended_ops
[op
] == NULL
)
6147 error (_(" Unknown macro opcode %02x seen\n"), op
);
6152 /* Skip over unhandled opcodes. */
6154 unsigned char *desc
= extended_ops
[op
];
6155 READ_ULEB (nargs
, desc
, end
);
6158 printf (_(" DW_MACRO_%02x\n"), op
);
6161 printf (_(" DW_MACRO_%02x -"), op
);
6162 for (n
= 0; n
< nargs
; n
++)
6166 /* DW_FORM_implicit_const is not expected here. */
6167 SAFE_BYTE_GET_AND_INC (val
, desc
, 1, end
);
6169 = read_and_display_attr_value (0, val
, 0,
6170 start
, curr
, end
, 0, 0, offset_size
,
6171 version
, NULL
, 0, NULL
,
6189 display_debug_abbrev (struct dwarf_section
*section
,
6190 void *file ATTRIBUTE_UNUSED
)
6192 abbrev_entry
*entry
;
6193 unsigned char *start
= section
->start
;
6195 introduce (section
, false);
6202 offset
= start
- section
->start
;
6203 list
= find_abbrev_list_by_abbrev_offset (0, offset
);
6206 list
= new_abbrev_list (0, offset
);
6207 start
= process_abbrev_set (section
, 0, section
->size
, offset
, list
);
6208 list
->start_of_next_abbrevs
= start
;
6211 start
= list
->start_of_next_abbrevs
;
6213 if (list
->first_abbrev
== NULL
)
6216 printf (_(" Number TAG (0x%lx)\n"), (long) offset
);
6218 for (entry
= list
->first_abbrev
; entry
; entry
= entry
->next
)
6222 printf (" %ld %s [%s]\n",
6224 get_TAG_name (entry
->tag
),
6225 entry
->children
? _("has children") : _("no children"));
6227 for (attr
= entry
->first_attr
; attr
; attr
= attr
->next
)
6229 printf (" %-18s %s",
6230 get_AT_name (attr
->attribute
),
6231 get_FORM_name (attr
->form
));
6232 if (attr
->form
== DW_FORM_implicit_const
)
6233 printf (": %" BFD_VMA_FMT
"d", attr
->implicit_const
);
6245 /* Return true when ADDR is the maximum address, when addresses are
6246 POINTER_SIZE bytes long. */
6249 is_max_address (dwarf_vma addr
, unsigned int pointer_size
)
6251 dwarf_vma mask
= ~(~(dwarf_vma
) 1 << (pointer_size
* 8 - 1));
6252 return ((addr
& mask
) == mask
);
6255 /* Display a view pair list starting at *VSTART_PTR and ending at
6256 VLISTEND within SECTION. */
6259 display_view_pair_list (struct dwarf_section
*section
,
6260 unsigned char **vstart_ptr
,
6261 unsigned int debug_info_entry
,
6262 unsigned char *vlistend
)
6264 unsigned char *vstart
= *vstart_ptr
;
6265 unsigned char *section_end
= section
->start
+ section
->size
;
6266 unsigned int pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6268 if (vlistend
< section_end
)
6269 section_end
= vlistend
;
6273 while (vstart
< section_end
)
6275 dwarf_vma off
= vstart
- section
->start
;
6276 dwarf_vma vbegin
, vend
;
6278 READ_ULEB (vbegin
, vstart
, section_end
);
6279 if (vstart
== section_end
)
6282 READ_ULEB (vend
, vstart
, section_end
);
6283 printf (" %8.8lx ", (unsigned long) off
);
6285 print_dwarf_view (vbegin
, pointer_size
, 1);
6286 print_dwarf_view (vend
, pointer_size
, 1);
6287 printf (_("location view pair\n"));
6291 *vstart_ptr
= vstart
;
6294 /* Display a location list from a normal (ie, non-dwo) .debug_loc section. */
6297 display_loc_list (struct dwarf_section
*section
,
6298 unsigned char **start_ptr
,
6299 unsigned int debug_info_entry
,
6301 dwarf_vma base_address
,
6302 unsigned char **vstart_ptr
,
6305 unsigned char *start
= *start_ptr
, *vstart
= *vstart_ptr
;
6306 unsigned char *section_end
= section
->start
+ section
->size
;
6307 unsigned long cu_offset
;
6308 unsigned int pointer_size
;
6309 unsigned int offset_size
;
6314 unsigned short length
;
6315 int need_frame_base
;
6317 if (debug_info_entry
>= num_debug_info_entries
)
6319 warn (_("No debug information available for loc lists of entry: %u\n"),
6324 cu_offset
= debug_information
[debug_info_entry
].cu_offset
;
6325 pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6326 offset_size
= debug_information
[debug_info_entry
].offset_size
;
6327 dwarf_version
= debug_information
[debug_info_entry
].dwarf_version
;
6329 if (pointer_size
< 2 || pointer_size
> 8)
6331 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
6332 pointer_size
, debug_info_entry
);
6338 dwarf_vma off
= offset
+ (start
- *start_ptr
);
6339 dwarf_vma vbegin
= vm1
, vend
= vm1
;
6341 if (start
+ 2 * pointer_size
> section_end
)
6343 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6344 (unsigned long) offset
);
6348 printf (" %8.8lx ", (unsigned long) off
);
6350 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, section_end
);
6351 SAFE_BYTE_GET_AND_INC (end
, start
, pointer_size
, section_end
);
6353 if (begin
== 0 && end
== 0)
6355 /* PR 18374: In a object file we can have a location list that
6356 starts with a begin and end of 0 because there are relocations
6357 that need to be applied to the addresses. Actually applying
6358 the relocations now does not help as they will probably resolve
6359 to 0, since the object file has not been fully linked. Real
6360 end of list markers will not have any relocations against them. */
6361 if (! reloc_at (section
, off
)
6362 && ! reloc_at (section
, off
+ pointer_size
))
6364 printf (_("<End of list>\n"));
6369 /* Check base address specifiers. */
6370 if (is_max_address (begin
, pointer_size
)
6371 && !is_max_address (end
, pointer_size
))
6374 print_dwarf_vma (begin
, pointer_size
);
6375 print_dwarf_vma (end
, pointer_size
);
6376 printf (_("(base address)\n"));
6382 off
= offset
+ (vstart
- *start_ptr
);
6384 READ_ULEB (vbegin
, vstart
, section_end
);
6385 print_dwarf_view (vbegin
, pointer_size
, 1);
6387 READ_ULEB (vend
, vstart
, section_end
);
6388 print_dwarf_view (vend
, pointer_size
, 1);
6390 printf (_("views at %8.8lx for:\n %*s "),
6391 (unsigned long) off
, 8, "");
6394 if (start
+ 2 > section_end
)
6396 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6397 (unsigned long) offset
);
6401 SAFE_BYTE_GET_AND_INC (length
, start
, 2, section_end
);
6403 if (start
+ length
> section_end
)
6405 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6406 (unsigned long) offset
);
6410 print_dwarf_vma (begin
+ base_address
, pointer_size
);
6411 print_dwarf_vma (end
+ base_address
, pointer_size
);
6414 need_frame_base
= decode_location_expression (start
,
6419 cu_offset
, section
);
6422 if (need_frame_base
&& !has_frame_base
)
6423 printf (_(" [without DW_AT_frame_base]"));
6425 if (begin
== end
&& vbegin
== vend
)
6426 fputs (_(" (start == end)"), stdout
);
6427 else if (begin
> end
|| (begin
== end
&& vbegin
> vend
))
6428 fputs (_(" (start > end)"), stdout
);
6436 *vstart_ptr
= vstart
;
6439 /* Display a location list from a normal (ie, non-dwo) .debug_loclists section. */
6442 display_loclists_list (struct dwarf_section
*section
,
6443 unsigned char **start_ptr
,
6444 unsigned int debug_info_entry
,
6446 dwarf_vma base_address
,
6447 unsigned char **vstart_ptr
,
6450 unsigned char *start
= *start_ptr
, *vstart
= *vstart_ptr
;
6451 unsigned char *section_end
= section
->start
+ section
->size
;
6452 unsigned long cu_offset
;
6453 unsigned int pointer_size
;
6454 unsigned int offset_size
;
6457 /* Initialize it due to a false compiler warning. */
6458 dwarf_vma begin
= -1, vbegin
= -1;
6459 dwarf_vma end
= -1, vend
= -1;
6461 int need_frame_base
;
6463 if (debug_info_entry
>= num_debug_info_entries
)
6465 warn (_("No debug information available for "
6466 "loclists lists of entry: %u\n"),
6471 cu_offset
= debug_information
[debug_info_entry
].cu_offset
;
6472 pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6473 offset_size
= debug_information
[debug_info_entry
].offset_size
;
6474 dwarf_version
= debug_information
[debug_info_entry
].dwarf_version
;
6476 if (pointer_size
< 2 || pointer_size
> 8)
6478 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
6479 pointer_size
, debug_info_entry
);
6485 dwarf_vma off
= offset
+ (start
- *start_ptr
);
6486 enum dwarf_location_list_entry_type llet
;
6488 if (start
+ 1 > section_end
)
6490 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6491 (unsigned long) offset
);
6495 printf (" %8.8lx ", (unsigned long) off
);
6497 SAFE_BYTE_GET_AND_INC (llet
, start
, 1, section_end
);
6499 if (vstart
&& (llet
== DW_LLE_offset_pair
6500 || llet
== DW_LLE_start_end
6501 || llet
== DW_LLE_start_length
))
6503 off
= offset
+ (vstart
- *start_ptr
);
6505 READ_ULEB (vbegin
, vstart
, section_end
);
6506 print_dwarf_view (vbegin
, pointer_size
, 1);
6508 READ_ULEB (vend
, vstart
, section_end
);
6509 print_dwarf_view (vend
, pointer_size
, 1);
6511 printf (_("views at %8.8lx for:\n %*s "),
6512 (unsigned long) off
, 8, "");
6517 case DW_LLE_end_of_list
:
6518 printf (_("<End of list>\n"));
6520 case DW_LLE_offset_pair
:
6521 READ_ULEB (begin
, start
, section_end
);
6522 begin
+= base_address
;
6523 READ_ULEB (end
, start
, section_end
);
6524 end
+= base_address
;
6526 case DW_LLE_start_end
:
6527 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, section_end
);
6528 SAFE_BYTE_GET_AND_INC (end
, start
, pointer_size
, section_end
);
6530 case DW_LLE_start_length
:
6531 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, section_end
);
6532 READ_ULEB (end
, start
, section_end
);
6535 case DW_LLE_base_address
:
6536 SAFE_BYTE_GET_AND_INC (base_address
, start
, pointer_size
,
6538 print_dwarf_vma (base_address
, pointer_size
);
6539 printf (_("(base address)\n"));
6541 #ifdef DW_LLE_view_pair
6542 case DW_LLE_view_pair
:
6544 printf (_("View pair entry in loclist with locviews attribute\n"));
6545 READ_ULEB (vbegin
, start
, section_end
);
6546 print_dwarf_view (vbegin
, pointer_size
, 1);
6548 READ_ULEB (vend
, start
, section_end
);
6549 print_dwarf_view (vend
, pointer_size
, 1);
6551 printf (_("views for:\n"));
6555 error (_("Invalid location list entry type %d\n"), llet
);
6558 if (llet
== DW_LLE_end_of_list
)
6560 if (llet
!= DW_LLE_offset_pair
6561 && llet
!= DW_LLE_start_end
6562 && llet
!= DW_LLE_start_length
)
6565 if (start
+ 2 > section_end
)
6567 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6568 (unsigned long) offset
);
6572 READ_ULEB (length
, start
, section_end
);
6574 print_dwarf_vma (begin
, pointer_size
);
6575 print_dwarf_vma (end
, pointer_size
);
6578 need_frame_base
= decode_location_expression (start
,
6583 cu_offset
, section
);
6586 if (need_frame_base
&& !has_frame_base
)
6587 printf (_(" [without DW_AT_frame_base]"));
6589 if (begin
== end
&& vbegin
== vend
)
6590 fputs (_(" (start == end)"), stdout
);
6591 else if (begin
> end
|| (begin
== end
&& vbegin
> vend
))
6592 fputs (_(" (start > end)"), stdout
);
6600 if (vbegin
!= vm1
|| vend
!= vm1
)
6601 printf (_("Trailing view pair not used in a range"));
6604 *vstart_ptr
= vstart
;
6607 /* Print a .debug_addr table index in decimal, surrounded by square brackets,
6608 right-adjusted in a field of length LEN, and followed by a space. */
6611 print_addr_index (unsigned int idx
, unsigned int len
)
6613 static char buf
[15];
6614 snprintf (buf
, sizeof (buf
), "[%d]", idx
);
6615 printf ("%*s ", len
, buf
);
6618 /* Display a location list from a .dwo section. It uses address indexes rather
6619 than embedded addresses. This code closely follows display_loc_list, but the
6620 two are sufficiently different that combining things is very ugly. */
6623 display_loc_list_dwo (struct dwarf_section
*section
,
6624 unsigned char **start_ptr
,
6625 unsigned int debug_info_entry
,
6627 unsigned char **vstart_ptr
,
6630 unsigned char *start
= *start_ptr
, *vstart
= *vstart_ptr
;
6631 unsigned char *section_end
= section
->start
+ section
->size
;
6632 unsigned long cu_offset
;
6633 unsigned int pointer_size
;
6634 unsigned int offset_size
;
6637 unsigned short length
;
6638 int need_frame_base
;
6641 if (debug_info_entry
>= num_debug_info_entries
)
6643 warn (_("No debug information for loc lists of entry: %u\n"),
6648 cu_offset
= debug_information
[debug_info_entry
].cu_offset
;
6649 pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6650 offset_size
= debug_information
[debug_info_entry
].offset_size
;
6651 dwarf_version
= debug_information
[debug_info_entry
].dwarf_version
;
6653 if (pointer_size
< 2 || pointer_size
> 8)
6655 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
6656 pointer_size
, debug_info_entry
);
6662 printf (" %8.8lx ", (unsigned long) (offset
+ (start
- *start_ptr
)));
6664 if (start
>= section_end
)
6666 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6667 (unsigned long) offset
);
6671 SAFE_BYTE_GET_AND_INC (entry_type
, start
, 1, section_end
);
6684 dwarf_vma off
= offset
+ (vstart
- *start_ptr
);
6686 READ_ULEB (view
, vstart
, section_end
);
6687 print_dwarf_view (view
, 8, 1);
6689 READ_ULEB (view
, vstart
, section_end
);
6690 print_dwarf_view (view
, 8, 1);
6692 printf (_("views at %8.8lx for:\n %*s "),
6693 (unsigned long) off
, 8, "");
6701 case 0: /* A terminating entry. */
6703 *vstart_ptr
= vstart
;
6704 printf (_("<End of list>\n"));
6706 case 1: /* A base-address entry. */
6707 READ_ULEB (idx
, start
, section_end
);
6708 print_addr_index (idx
, 8);
6709 printf ("%*s", 9 + (vstart
? 2 * 6 : 0), "");
6710 printf (_("(base address selection entry)\n"));
6712 case 2: /* A start/end entry. */
6713 READ_ULEB (idx
, start
, section_end
);
6714 print_addr_index (idx
, 8);
6715 READ_ULEB (idx
, start
, section_end
);
6716 print_addr_index (idx
, 8);
6718 case 3: /* A start/length entry. */
6719 READ_ULEB (idx
, start
, section_end
);
6720 print_addr_index (idx
, 8);
6721 SAFE_BYTE_GET_AND_INC (idx
, start
, 4, section_end
);
6722 printf ("%08x ", idx
);
6724 case 4: /* An offset pair entry. */
6725 SAFE_BYTE_GET_AND_INC (idx
, start
, 4, section_end
);
6726 printf ("%08x ", idx
);
6727 SAFE_BYTE_GET_AND_INC (idx
, start
, 4, section_end
);
6728 printf ("%08x ", idx
);
6731 warn (_("Unknown location list entry type 0x%x.\n"), entry_type
);
6733 *vstart_ptr
= vstart
;
6737 if (start
+ 2 > section_end
)
6739 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6740 (unsigned long) offset
);
6744 SAFE_BYTE_GET_AND_INC (length
, start
, 2, section_end
);
6745 if (start
+ length
> section_end
)
6747 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6748 (unsigned long) offset
);
6753 need_frame_base
= decode_location_expression (start
,
6758 cu_offset
, section
);
6761 if (need_frame_base
&& !has_frame_base
)
6762 printf (_(" [without DW_AT_frame_base]"));
6770 *vstart_ptr
= vstart
;
6773 /* Sort array of indexes in ascending order of loc_offsets[idx] and
6776 static dwarf_vma
*loc_offsets
, *loc_views
;
6779 loc_offsets_compar (const void *ap
, const void *bp
)
6781 dwarf_vma a
= loc_offsets
[*(const unsigned int *) ap
];
6782 dwarf_vma b
= loc_offsets
[*(const unsigned int *) bp
];
6784 int ret
= (a
> b
) - (b
> a
);
6788 a
= loc_views
[*(const unsigned int *) ap
];
6789 b
= loc_views
[*(const unsigned int *) bp
];
6791 ret
= (a
> b
) - (b
> a
);
6797 display_debug_loc (struct dwarf_section
*section
, void *file
)
6799 unsigned char *start
= section
->start
, *vstart
= NULL
;
6800 unsigned long bytes
;
6801 unsigned char *section_begin
= start
;
6802 unsigned int num_loc_list
= 0;
6803 unsigned long last_offset
= 0;
6804 unsigned long last_view
= 0;
6805 unsigned int first
= 0;
6808 int seen_first_offset
= 0;
6809 int locs_sorted
= 1;
6810 unsigned char *next
= start
, *vnext
= vstart
;
6811 unsigned int *array
= NULL
;
6812 const char *suffix
= strrchr (section
->name
, '.');
6813 bool is_dwo
= false;
6814 int is_loclists
= strstr (section
->name
, "debug_loclists") != NULL
;
6815 dwarf_vma expected_start
= 0;
6817 if (suffix
&& strcmp (suffix
, ".dwo") == 0)
6820 bytes
= section
->size
;
6824 printf (_("\nThe %s section is empty.\n"), section
->name
);
6830 unsigned char *hdrptr
= section_begin
;
6831 dwarf_vma ll_length
;
6832 unsigned short ll_version
;
6833 unsigned char *end
= section_begin
+ section
->size
;
6834 unsigned char address_size
, segment_selector_size
;
6835 uint32_t offset_entry_count
;
6837 SAFE_BYTE_GET_AND_INC (ll_length
, hdrptr
, 4, end
);
6838 if (ll_length
== 0xffffffff)
6839 SAFE_BYTE_GET_AND_INC (ll_length
, hdrptr
, 8, end
);
6841 SAFE_BYTE_GET_AND_INC (ll_version
, hdrptr
, 2, end
);
6842 if (ll_version
!= 5)
6844 warn (_("The %s section contains corrupt or "
6845 "unsupported version number: %d.\n"),
6846 section
->name
, ll_version
);
6850 SAFE_BYTE_GET_AND_INC (address_size
, hdrptr
, 1, end
);
6852 SAFE_BYTE_GET_AND_INC (segment_selector_size
, hdrptr
, 1, end
);
6853 if (segment_selector_size
!= 0)
6855 warn (_("The %s section contains "
6856 "unsupported segment selector size: %d.\n"),
6857 section
->name
, segment_selector_size
);
6861 SAFE_BYTE_GET_AND_INC (offset_entry_count
, hdrptr
, 4, end
);
6862 if (offset_entry_count
!= 0)
6864 warn (_("The %s section contains "
6865 "unsupported offset entry count: %d.\n"),
6866 section
->name
, offset_entry_count
);
6870 expected_start
= hdrptr
- section_begin
;
6873 if (load_debug_info (file
) == 0)
6875 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
6880 /* Check the order of location list in .debug_info section. If
6881 offsets of location lists are in the ascending order, we can
6882 use `debug_information' directly. */
6883 for (i
= 0; i
< num_debug_info_entries
; i
++)
6887 num
= debug_information
[i
].num_loc_offsets
;
6888 if (num
> num_loc_list
)
6891 /* Check if we can use `debug_information' directly. */
6892 if (locs_sorted
&& num
!= 0)
6894 if (!seen_first_offset
)
6896 /* This is the first location list. */
6897 last_offset
= debug_information
[i
].loc_offsets
[0];
6898 last_view
= debug_information
[i
].loc_views
[0];
6900 seen_first_offset
= 1;
6906 for (; j
< num
; j
++)
6909 debug_information
[i
].loc_offsets
[j
]
6910 || (last_offset
== debug_information
[i
].loc_offsets
[j
]
6911 && last_view
> debug_information
[i
].loc_views
[j
]))
6916 last_offset
= debug_information
[i
].loc_offsets
[j
];
6917 last_view
= debug_information
[i
].loc_views
[j
];
6922 if (!seen_first_offset
)
6923 error (_("No location lists in .debug_info section!\n"));
6925 if (debug_information
[first
].num_loc_offsets
> 0
6926 && debug_information
[first
].loc_offsets
[0] != expected_start
6927 && debug_information
[first
].loc_views
[0] != expected_start
)
6928 warn (_("Location lists in %s section start at 0x%s\n"),
6930 dwarf_vmatoa ("x", debug_information
[first
].loc_offsets
[0]));
6933 array
= (unsigned int *) xcmalloc (num_loc_list
, sizeof (unsigned int));
6935 introduce (section
, false);
6937 if (reloc_at (section
, 0))
6938 printf (_(" Warning: This section has relocations - addresses seen here may not be accurate.\n\n"));
6940 printf (_(" Offset Begin End Expression\n"));
6942 seen_first_offset
= 0;
6943 for (i
= first
; i
< num_debug_info_entries
; i
++)
6945 dwarf_vma offset
, voffset
;
6946 dwarf_vma base_address
;
6952 for (k
= 0; k
< debug_information
[i
].num_loc_offsets
; k
++)
6954 loc_offsets
= debug_information
[i
].loc_offsets
;
6955 loc_views
= debug_information
[i
].loc_views
;
6956 qsort (array
, debug_information
[i
].num_loc_offsets
,
6957 sizeof (*array
), loc_offsets_compar
);
6960 int adjacent_view_loclists
= 1;
6961 for (k
= 0; k
< debug_information
[i
].num_loc_offsets
; k
++)
6963 j
= locs_sorted
? k
: array
[k
];
6965 && (debug_information
[i
].loc_offsets
[locs_sorted
6966 ? k
- 1 : array
[k
- 1]]
6967 == debug_information
[i
].loc_offsets
[j
])
6968 && (debug_information
[i
].loc_views
[locs_sorted
6969 ? k
- 1 : array
[k
- 1]]
6970 == debug_information
[i
].loc_views
[j
]))
6972 has_frame_base
= debug_information
[i
].have_frame_base
[j
];
6973 offset
= debug_information
[i
].loc_offsets
[j
];
6974 next
= section_begin
+ offset
;
6975 voffset
= debug_information
[i
].loc_views
[j
];
6977 vnext
= section_begin
+ voffset
;
6980 base_address
= debug_information
[i
].base_address
;
6982 if (vnext
&& vnext
< next
)
6985 display_view_pair_list (section
, &vstart
, i
, next
);
6990 if (!seen_first_offset
|| !adjacent_view_loclists
)
6991 seen_first_offset
= 1;
6995 warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
6996 (unsigned long) (start
- section_begin
),
6997 (unsigned long) offset
);
6998 else if (start
> next
)
6999 warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
7000 (unsigned long) (start
- section_begin
),
7001 (unsigned long) offset
);
7006 if (offset
>= bytes
)
7008 warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"),
7009 (unsigned long) offset
);
7013 if (vnext
&& voffset
>= bytes
)
7015 warn (_("View Offset 0x%lx is bigger than .debug_loc section size.\n"),
7016 (unsigned long) voffset
);
7023 display_loc_list_dwo (section
, &start
, i
, offset
,
7024 &vstart
, has_frame_base
);
7026 display_loc_list (section
, &start
, i
, offset
, base_address
,
7027 &vstart
, has_frame_base
);
7032 warn (_("DWO is not yet supported.\n"));
7034 display_loclists_list (section
, &start
, i
, offset
, base_address
,
7035 &vstart
, has_frame_base
);
7038 /* FIXME: this arrangement is quite simplistic. Nothing
7039 requires locview lists to be adjacent to corresponding
7040 loclists, and a single loclist could be augmented by
7041 different locview lists, and vice-versa, unlikely as it
7042 is that it would make sense to do so. Hopefully we'll
7043 have view pair support built into loclists before we ever
7044 need to address all these possibilities. */
7045 if (adjacent_view_loclists
&& vnext
7046 && vnext
!= start
&& vstart
!= next
)
7048 adjacent_view_loclists
= 0;
7049 warn (_("Hole and overlap detection requires adjacent view lists and loclists.\n"));
7052 if (vnext
&& vnext
== start
)
7053 display_view_pair_list (section
, &start
, i
, vstart
);
7057 if (start
< section
->start
+ section
->size
)
7058 warn (ngettext ("There is %ld unused byte at the end of section %s\n",
7059 "There are %ld unused bytes at the end of section %s\n",
7060 (long) (section
->start
+ section
->size
- start
)),
7061 (long) (section
->start
+ section
->size
- start
), section
->name
);
7068 display_debug_str (struct dwarf_section
*section
,
7069 void *file ATTRIBUTE_UNUSED
)
7071 unsigned char *start
= section
->start
;
7072 unsigned long bytes
= section
->size
;
7073 dwarf_vma addr
= section
->address
;
7077 printf (_("\nThe %s section is empty.\n"), section
->name
);
7081 introduce (section
, false);
7089 lbytes
= (bytes
> 16 ? 16 : bytes
);
7091 printf (" 0x%8.8lx ", (unsigned long) addr
);
7093 for (j
= 0; j
< 16; j
++)
7096 printf ("%2.2x", start
[j
]);
7104 for (j
= 0; j
< lbytes
; j
++)
7107 if (k
>= ' ' && k
< 0x80)
7126 display_debug_info (struct dwarf_section
*section
, void *file
)
7128 return process_debug_info (section
, file
, section
->abbrev_sec
, false, false);
7132 display_debug_types (struct dwarf_section
*section
, void *file
)
7134 return process_debug_info (section
, file
, section
->abbrev_sec
, false, true);
7138 display_trace_info (struct dwarf_section
*section
, void *file
)
7140 return process_debug_info (section
, file
, section
->abbrev_sec
, false, true);
7144 display_debug_aranges (struct dwarf_section
*section
,
7145 void *file ATTRIBUTE_UNUSED
)
7147 unsigned char *start
= section
->start
;
7148 unsigned char *end
= start
+ section
->size
;
7150 introduce (section
, false);
7152 /* It does not matter if this load fails,
7153 we test for that later on. */
7154 load_debug_info (file
);
7158 unsigned char *hdrptr
;
7159 DWARF2_Internal_ARange arange
;
7160 unsigned char *addr_ranges
;
7163 unsigned long sec_off
;
7164 unsigned char address_size
;
7166 unsigned int offset_size
;
7167 unsigned int initial_length_size
;
7171 SAFE_BYTE_GET_AND_INC (arange
.ar_length
, hdrptr
, 4, end
);
7172 if (arange
.ar_length
== 0xffffffff)
7174 SAFE_BYTE_GET_AND_INC (arange
.ar_length
, hdrptr
, 8, end
);
7176 initial_length_size
= 12;
7181 initial_length_size
= 4;
7184 sec_off
= hdrptr
- section
->start
;
7185 if (sec_off
+ arange
.ar_length
< sec_off
7186 || sec_off
+ arange
.ar_length
> section
->size
)
7188 warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
7190 sec_off
- initial_length_size
,
7191 dwarf_vmatoa ("x", arange
.ar_length
));
7195 SAFE_BYTE_GET_AND_INC (arange
.ar_version
, hdrptr
, 2, end
);
7196 SAFE_BYTE_GET_AND_INC (arange
.ar_info_offset
, hdrptr
, offset_size
, end
);
7198 if (num_debug_info_entries
!= DEBUG_INFO_UNAVAILABLE
7199 && num_debug_info_entries
> 0
7200 && find_debug_info_for_offset (arange
.ar_info_offset
) == NULL
)
7201 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
7202 (unsigned long) arange
.ar_info_offset
, section
->name
);
7204 SAFE_BYTE_GET_AND_INC (arange
.ar_pointer_size
, hdrptr
, 1, end
);
7205 SAFE_BYTE_GET_AND_INC (arange
.ar_segment_size
, hdrptr
, 1, end
);
7207 if (arange
.ar_version
!= 2 && arange
.ar_version
!= 3)
7209 /* PR 19872: A version number of 0 probably means that there is
7210 padding at the end of the .debug_aranges section. Gold puts
7211 it there when performing an incremental link, for example.
7212 So do not generate a warning in this case. */
7213 if (arange
.ar_version
)
7214 warn (_("Only DWARF 2 and 3 aranges are currently supported.\n"));
7218 printf (_(" Length: %ld\n"),
7219 (long) arange
.ar_length
);
7220 printf (_(" Version: %d\n"), arange
.ar_version
);
7221 printf (_(" Offset into .debug_info: 0x%lx\n"),
7222 (unsigned long) arange
.ar_info_offset
);
7223 printf (_(" Pointer Size: %d\n"), arange
.ar_pointer_size
);
7224 printf (_(" Segment Size: %d\n"), arange
.ar_segment_size
);
7226 address_size
= arange
.ar_pointer_size
+ arange
.ar_segment_size
;
7228 /* PR 17512: file: 001-108546-0.001:0.1. */
7229 if (address_size
== 0 || address_size
> 8)
7231 error (_("Invalid address size in %s section!\n"),
7236 /* The DWARF spec does not require that the address size be a power
7237 of two, but we do. This will have to change if we ever encounter
7238 an uneven architecture. */
7239 if ((address_size
& (address_size
- 1)) != 0)
7241 warn (_("Pointer size + Segment size is not a power of two.\n"));
7245 if (address_size
> 4)
7246 printf (_("\n Address Length\n"));
7248 printf (_("\n Address Length\n"));
7250 addr_ranges
= hdrptr
;
7252 /* Must pad to an alignment boundary that is twice the address size. */
7253 excess
= (hdrptr
- start
) % (2 * address_size
);
7255 addr_ranges
+= (2 * address_size
) - excess
;
7257 start
+= arange
.ar_length
+ initial_length_size
;
7259 while (addr_ranges
+ 2 * address_size
<= start
)
7261 SAFE_BYTE_GET_AND_INC (address
, addr_ranges
, address_size
, end
);
7262 SAFE_BYTE_GET_AND_INC (length
, addr_ranges
, address_size
, end
);
7265 print_dwarf_vma (address
, address_size
);
7266 print_dwarf_vma (length
, address_size
);
7276 /* Comparison function for qsort. */
7278 comp_addr_base (const void * v0
, const void * v1
)
7280 debug_info
*info0
= *(debug_info
**) v0
;
7281 debug_info
*info1
= *(debug_info
**) v1
;
7282 return info0
->addr_base
- info1
->addr_base
;
7285 /* Display the debug_addr section. */
7287 display_debug_addr (struct dwarf_section
*section
,
7290 debug_info
**debug_addr_info
;
7291 unsigned char *entry
;
7295 unsigned char * header
;
7297 if (section
->size
== 0)
7299 printf (_("\nThe %s section is empty.\n"), section
->name
);
7303 if (load_debug_info (file
) == 0)
7305 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
7310 introduce (section
, false);
7312 /* PR 17531: file: cf38d01b.
7313 We use xcalloc because a corrupt file may not have initialised all of the
7314 fields in the debug_info structure, which means that the sort below might
7315 try to move uninitialised data. */
7316 debug_addr_info
= (debug_info
**) xcalloc ((num_debug_info_entries
+ 1),
7317 sizeof (debug_info
*));
7320 for (i
= 0; i
< num_debug_info_entries
; i
++)
7321 if (debug_information
[i
].addr_base
!= DEBUG_INFO_UNAVAILABLE
)
7323 /* PR 17531: file: cf38d01b. */
7324 if (debug_information
[i
].addr_base
>= section
->size
)
7325 warn (_("Corrupt address base (%lx) found in debug section %u\n"),
7326 (unsigned long) debug_information
[i
].addr_base
, i
);
7328 debug_addr_info
[count
++] = debug_information
+ i
;
7331 /* Add a sentinel to make iteration convenient. */
7332 debug_addr_info
[count
] = (debug_info
*) xmalloc (sizeof (debug_info
));
7333 debug_addr_info
[count
]->addr_base
= section
->size
;
7334 qsort (debug_addr_info
, count
, sizeof (debug_info
*), comp_addr_base
);
7336 header
= section
->start
;
7337 for (i
= 0; i
< count
; i
++)
7340 unsigned int address_size
= debug_addr_info
[i
]->pointer_size
;
7342 printf (_(" For compilation unit at offset 0x%s:\n"),
7343 dwarf_vmatoa ("x", debug_addr_info
[i
]->cu_offset
));
7345 printf (_("\tIndex\tAddress\n"));
7346 entry
= section
->start
+ debug_addr_info
[i
]->addr_base
;
7347 if (debug_addr_info
[i
]->dwarf_version
>= 5)
7349 size_t header_size
= entry
- header
;
7350 unsigned char * curr_header
= header
;
7353 int segment_selector_size
;
7355 if (header_size
!= 8 && header_size
!= 16)
7357 warn (_("Corrupt %s section: expecting header size of 8 or 16, but found %ld instead\n"),
7358 section
->name
, (long) header_size
);
7362 SAFE_BYTE_GET_AND_INC (length
, curr_header
, 4, entry
);
7363 if (length
== 0xffffffff)
7364 SAFE_BYTE_GET_AND_INC (length
, curr_header
, 8, entry
);
7365 end
= curr_header
+ length
;
7367 SAFE_BYTE_GET_AND_INC (version
, curr_header
, 2, entry
);
7369 warn (_("Corrupt %s section: expecting version number 5 in header but found %d instead\n"),
7370 section
->name
, version
);
7372 SAFE_BYTE_GET_AND_INC (address_size
, curr_header
, 1, entry
);
7373 SAFE_BYTE_GET_AND_INC (segment_selector_size
, curr_header
, 1, entry
);
7374 address_size
+= segment_selector_size
;
7377 end
= section
->start
+ debug_addr_info
[i
+ 1]->addr_base
;
7382 dwarf_vma base
= byte_get (entry
, address_size
);
7383 printf (_("\t%d:\t"), idx
);
7384 print_dwarf_vma (base
, address_size
);
7386 entry
+= address_size
;
7392 free (debug_addr_info
);
7396 /* Display the .debug_str_offsets and .debug_str_offsets.dwo sections. */
7399 display_debug_str_offsets (struct dwarf_section
*section
,
7400 void *file ATTRIBUTE_UNUSED
)
7404 if (section
->size
== 0)
7406 printf (_("\nThe %s section is empty.\n"), section
->name
);
7410 unsigned char *start
= section
->start
;
7411 unsigned char *end
= start
+ section
->size
;
7412 unsigned char *curr
= start
;
7414 const char *suffix
= strrchr (section
->name
, '.');
7415 bool dwo
= suffix
&& strcmp (suffix
, ".dwo") == 0;
7418 load_debug_section_with_follow (str_dwo
, file
);
7420 load_debug_section_with_follow (str
, file
);
7422 introduce (section
, false);
7427 dwarf_vma entry_length
;
7429 SAFE_BYTE_GET_AND_INC (length
, curr
, 4, end
);
7430 /* FIXME: We assume that this means 64-bit DWARF is being used. */
7431 if (length
== 0xffffffff)
7433 SAFE_BYTE_GET_AND_INC (length
, curr
, 8, end
);
7439 unsigned char *entries_end
;
7442 /* This is probably an old style .debug_str_offset section which
7443 just contains offsets and no header (and the first offset is 0). */
7444 length
= section
->size
;
7445 curr
= section
->start
;
7448 printf (_(" Length: %#lx\n"), (unsigned long) length
);
7449 printf (_(" Index Offset [String]\n"));
7453 if (length
<= (dwarf_vma
) (end
- curr
))
7454 entries_end
= curr
+ length
;
7457 warn (_("Section %s is too small %#lx\n"),
7458 section
->name
, (unsigned long) section
->size
);
7463 SAFE_BYTE_GET_AND_INC (version
, curr
, 2, end
);
7465 warn (_("Unexpected version number in str_offset header: %#x\n"), version
);
7468 SAFE_BYTE_GET_AND_INC (padding
, curr
, 2, end
);
7470 warn (_("Unexpected value in str_offset header's padding field: %#x\n"), padding
);
7472 printf (_(" Length: %#lx\n"), (unsigned long) length
);
7473 printf (_(" Version: %#lx\n"), (unsigned long) version
);
7474 printf (_(" Index Offset [String]\n"));
7477 for (idx
= 0; curr
< entries_end
; idx
++)
7480 const unsigned char * string
;
7482 if ((dwarf_vma
) (entries_end
- curr
) < entry_length
)
7483 /* Not enough space to read one entry_length, give up. */
7486 SAFE_BYTE_GET_AND_INC (offset
, curr
, entry_length
, entries_end
);
7488 string
= (const unsigned char *)
7489 fetch_indexed_string (idx
, NULL
, entry_length
, dwo
);
7491 string
= fetch_indirect_string (offset
);
7493 printf (" %8lu %8s %s\n", idx
, dwarf_vmatoa ("x", offset
),
7501 /* Each debug_information[x].range_lists[y] gets this representation for
7502 sorting purposes. */
7506 /* The debug_information[x].range_lists[y] value. */
7507 dwarf_vma ranges_offset
;
7509 /* Original debug_information to find parameters of the data. */
7510 debug_info
*debug_info_p
;
7513 /* Sort struct range_entry in ascending order of its RANGES_OFFSET. */
7516 range_entry_compar (const void *ap
, const void *bp
)
7518 const struct range_entry
*a_re
= (const struct range_entry
*) ap
;
7519 const struct range_entry
*b_re
= (const struct range_entry
*) bp
;
7520 const dwarf_vma a
= a_re
->ranges_offset
;
7521 const dwarf_vma b
= b_re
->ranges_offset
;
7523 return (a
> b
) - (b
> a
);
7527 display_debug_ranges_list (unsigned char *start
, unsigned char *finish
,
7528 unsigned int pointer_size
, unsigned long offset
,
7529 unsigned long base_address
)
7531 while (start
< finish
)
7536 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, finish
);
7537 if (start
>= finish
)
7539 SAFE_SIGNED_BYTE_GET_AND_INC (end
, start
, pointer_size
, finish
);
7541 printf (" %8.8lx ", offset
);
7543 if (begin
== 0 && end
== 0)
7545 printf (_("<End of list>\n"));
7549 /* Check base address specifiers. */
7550 if (is_max_address (begin
, pointer_size
)
7551 && !is_max_address (end
, pointer_size
))
7554 print_dwarf_vma (begin
, pointer_size
);
7555 print_dwarf_vma (end
, pointer_size
);
7556 printf ("(base address)\n");
7560 print_dwarf_vma (begin
+ base_address
, pointer_size
);
7561 print_dwarf_vma (end
+ base_address
, pointer_size
);
7564 fputs (_("(start == end)"), stdout
);
7565 else if (begin
> end
)
7566 fputs (_("(start > end)"), stdout
);
7573 display_debug_rnglists_list (unsigned char *start
, unsigned char *finish
,
7574 unsigned int pointer_size
, unsigned long offset
,
7575 unsigned long base_address
)
7577 unsigned char *next
= start
;
7581 unsigned long off
= offset
+ (start
- next
);
7582 enum dwarf_range_list_entry rlet
;
7583 /* Initialize it due to a false compiler warning. */
7584 dwarf_vma begin
= -1, length
, end
= -1;
7586 if (start
+ 1 > finish
)
7588 warn (_("Range list starting at offset 0x%lx is not terminated.\n"),
7593 printf (" %8.8lx ", off
);
7595 SAFE_BYTE_GET_AND_INC (rlet
, start
, 1, finish
);
7599 case DW_RLE_end_of_list
:
7600 printf (_("<End of list>\n"));
7602 case DW_RLE_base_address
:
7603 SAFE_BYTE_GET_AND_INC (base_address
, start
, pointer_size
, finish
);
7604 print_dwarf_vma (base_address
, pointer_size
);
7605 printf (_("(base address)\n"));
7607 case DW_RLE_start_length
:
7608 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, finish
);
7609 READ_ULEB (length
, start
, finish
);
7610 end
= begin
+ length
;
7612 case DW_RLE_offset_pair
:
7613 READ_ULEB (begin
, start
, finish
);
7614 READ_ULEB (end
, start
, finish
);
7616 case DW_RLE_start_end
:
7617 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, finish
);
7618 SAFE_BYTE_GET_AND_INC (end
, start
, pointer_size
, finish
);
7621 error (_("Invalid range list entry type %d\n"), rlet
);
7622 rlet
= DW_RLE_end_of_list
;
7625 if (rlet
== DW_RLE_end_of_list
)
7627 if (rlet
== DW_RLE_base_address
)
7630 /* Only a DW_RLE_offset_pair needs the base address added. */
7631 if (rlet
== DW_RLE_offset_pair
)
7633 begin
+= base_address
;
7634 end
+= base_address
;
7637 print_dwarf_vma (begin
, pointer_size
);
7638 print_dwarf_vma (end
, pointer_size
);
7641 fputs (_("(start == end)"), stdout
);
7642 else if (begin
> end
)
7643 fputs (_("(start > end)"), stdout
);
7650 display_debug_ranges (struct dwarf_section
*section
,
7651 void *file ATTRIBUTE_UNUSED
)
7653 unsigned char *start
= section
->start
;
7654 unsigned char *last_start
= start
;
7655 unsigned long bytes
= section
->size
;
7656 unsigned char *section_begin
= start
;
7657 unsigned char *finish
= start
+ bytes
;
7658 unsigned int num_range_list
, i
;
7659 struct range_entry
*range_entries
, *range_entry_fill
;
7660 int is_rnglists
= strstr (section
->name
, "debug_rnglists") != NULL
;
7661 /* Initialize it due to a false compiler warning. */
7662 unsigned char address_size
= 0;
7663 dwarf_vma last_offset
= 0;
7667 printf (_("\nThe %s section is empty.\n"), section
->name
);
7673 dwarf_vma initial_length
;
7674 unsigned int initial_length_size
;
7675 unsigned char segment_selector_size
;
7676 unsigned int offset_size
, offset_entry_count
;
7677 unsigned short version
;
7679 /* Get and check the length of the block. */
7680 SAFE_BYTE_GET_AND_INC (initial_length
, start
, 4, finish
);
7682 if (initial_length
== 0xffffffff)
7684 /* This section is 64-bit DWARF 3. */
7685 SAFE_BYTE_GET_AND_INC (initial_length
, start
, 8, finish
);
7687 initial_length_size
= 12;
7692 initial_length_size
= 4;
7695 if (initial_length
+ initial_length_size
> section
->size
)
7697 /* If the length field has a relocation against it, then we should
7698 not complain if it is inaccurate (and probably negative).
7699 It is copied from .debug_line handling code. */
7700 if (reloc_at (section
, (start
- section
->start
) - offset_size
))
7702 initial_length
= (finish
- start
) - initial_length_size
;
7706 warn (_("The length field (0x%lx) in the debug_rnglists header is wrong - the section is too small\n"),
7707 (long) initial_length
);
7712 /* Get and check the version number. */
7713 SAFE_BYTE_GET_AND_INC (version
, start
, 2, finish
);
7717 warn (_("Only DWARF version 5 debug_rnglists info "
7718 "is currently supported.\n"));
7722 SAFE_BYTE_GET_AND_INC (address_size
, start
, 1, finish
);
7724 SAFE_BYTE_GET_AND_INC (segment_selector_size
, start
, 1, finish
);
7725 if (segment_selector_size
!= 0)
7727 warn (_("The %s section contains "
7728 "unsupported segment selector size: %d.\n"),
7729 section
->name
, segment_selector_size
);
7733 SAFE_BYTE_GET_AND_INC (offset_entry_count
, start
, 4, finish
);
7734 if (offset_entry_count
!= 0)
7736 warn (_("The %s section contains "
7737 "unsupported offset entry count: %u.\n"),
7738 section
->name
, offset_entry_count
);
7743 if (load_debug_info (file
) == 0)
7745 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
7751 for (i
= 0; i
< num_debug_info_entries
; i
++)
7753 if (debug_information
[i
].dwarf_version
< 5 && is_rnglists
)
7754 /* Skip .debug_rnglists reference. */
7756 if (debug_information
[i
].dwarf_version
>= 5 && !is_rnglists
)
7757 /* Skip .debug_range reference. */
7759 num_range_list
+= debug_information
[i
].num_range_lists
;
7762 if (num_range_list
== 0)
7764 /* This can happen when the file was compiled with -gsplit-debug
7765 which removes references to range lists from the primary .o file. */
7766 printf (_("No range lists in .debug_info section.\n"));
7770 range_entries
= (struct range_entry
*)
7771 xmalloc (sizeof (*range_entries
) * num_range_list
);
7772 range_entry_fill
= range_entries
;
7774 for (i
= 0; i
< num_debug_info_entries
; i
++)
7776 debug_info
*debug_info_p
= &debug_information
[i
];
7779 if (debug_information
[i
].dwarf_version
< 5 && is_rnglists
)
7780 /* Skip .debug_rnglists reference. */
7782 if (debug_information
[i
].dwarf_version
>= 5 && !is_rnglists
)
7783 /* Skip .debug_range reference. */
7786 for (j
= 0; j
< debug_info_p
->num_range_lists
; j
++)
7788 range_entry_fill
->ranges_offset
= debug_info_p
->range_lists
[j
];
7789 range_entry_fill
->debug_info_p
= debug_info_p
;
7794 qsort (range_entries
, num_range_list
, sizeof (*range_entries
),
7795 range_entry_compar
);
7797 if (dwarf_check
!= 0 && range_entries
[0].ranges_offset
!= 0)
7798 warn (_("Range lists in %s section start at 0x%lx\n"),
7799 section
->name
, (unsigned long) range_entries
[0].ranges_offset
);
7801 introduce (section
, false);
7803 printf (_(" Offset Begin End\n"));
7805 for (i
= 0; i
< num_range_list
; i
++)
7807 struct range_entry
*range_entry
= &range_entries
[i
];
7808 debug_info
*debug_info_p
= range_entry
->debug_info_p
;
7809 unsigned int pointer_size
;
7811 unsigned char *next
;
7812 dwarf_vma base_address
;
7814 pointer_size
= (is_rnglists
? address_size
: debug_info_p
->pointer_size
);
7815 offset
= range_entry
->ranges_offset
;
7816 next
= section_begin
+ offset
;
7817 base_address
= debug_info_p
->base_address
;
7819 /* PR 17512: file: 001-101485-0.001:0.1. */
7820 if (pointer_size
< 2 || pointer_size
> 8)
7822 warn (_("Corrupt pointer size (%d) in debug entry at offset %8.8lx\n"),
7823 pointer_size
, (unsigned long) offset
);
7827 if (next
< section_begin
|| next
>= finish
)
7829 warn (_("Corrupt offset (%#8.8lx) in range entry %u\n"),
7830 (unsigned long) offset
, i
);
7834 /* If multiple DWARF entities reference the same range then we will
7835 have multiple entries in the `range_entries' list for the same
7836 offset. Thanks to the sort above these will all be consecutive in
7837 the `range_entries' list, so we can easily ignore duplicates
7839 if (i
> 0 && last_offset
== offset
)
7841 last_offset
= offset
;
7843 if (dwarf_check
!= 0 && i
> 0)
7846 warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
7847 (unsigned long) (start
- section_begin
),
7848 (unsigned long) (next
- section_begin
), section
->name
);
7849 else if (start
> next
)
7851 if (next
== last_start
)
7853 warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
7854 (unsigned long) (start
- section_begin
),
7855 (unsigned long) (next
- section_begin
), section
->name
);
7862 (is_rnglists
? display_debug_rnglists_list
: display_debug_ranges_list
)
7863 (start
, finish
, pointer_size
, offset
, base_address
);
7867 free (range_entries
);
7872 typedef struct Frame_Chunk
7874 struct Frame_Chunk
*next
;
7875 unsigned char *chunk_start
;
7877 /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */
7878 short int *col_type
;
7881 unsigned int code_factor
;
7885 unsigned int cfa_reg
;
7886 dwarf_vma cfa_offset
;
7888 unsigned char fde_encoding
;
7889 unsigned char cfa_exp
;
7890 unsigned char ptr_size
;
7891 unsigned char segment_size
;
7895 typedef const char *(*dwarf_regname_lookup_ftype
) (unsigned int);
7896 static dwarf_regname_lookup_ftype dwarf_regnames_lookup_func
;
7897 static const char *const *dwarf_regnames
;
7898 static unsigned int dwarf_regnames_count
;
7901 /* A marker for a col_type that means this column was never referenced
7902 in the frame info. */
7903 #define DW_CFA_unreferenced (-1)
7905 /* Return 0 if no more space is needed, 1 if more space is needed,
7906 -1 for invalid reg. */
7909 frame_need_space (Frame_Chunk
*fc
, unsigned int reg
)
7911 unsigned int prev
= fc
->ncols
;
7913 if (reg
< (unsigned int) fc
->ncols
)
7916 if (dwarf_regnames_count
> 0
7917 && reg
> dwarf_regnames_count
)
7920 fc
->ncols
= reg
+ 1;
7921 /* PR 17512: file: 10450-2643-0.004.
7922 If reg == -1 then this can happen... */
7926 /* PR 17512: file: 2844a11d. */
7927 if (fc
->ncols
> 1024 && dwarf_regnames_count
== 0)
7929 error (_("Unfeasibly large register number: %u\n"), reg
);
7931 /* FIXME: 1024 is an arbitrary limit. Increase it if
7932 we ever encounter a valid binary that exceeds it. */
7936 fc
->col_type
= (short int *) xcrealloc (fc
->col_type
, fc
->ncols
,
7937 sizeof (short int));
7938 fc
->col_offset
= (int *) xcrealloc (fc
->col_offset
, fc
->ncols
, sizeof (int));
7939 /* PR 17512: file:002-10025-0.005. */
7940 if (fc
->col_type
== NULL
|| fc
->col_offset
== NULL
)
7942 error (_("Out of memory allocating %u columns in dwarf frame arrays\n"),
7948 while (prev
< fc
->ncols
)
7950 fc
->col_type
[prev
] = DW_CFA_unreferenced
;
7951 fc
->col_offset
[prev
] = 0;
7957 static const char *const dwarf_regnames_i386
[] =
7959 "eax", "ecx", "edx", "ebx", /* 0 - 3 */
7960 "esp", "ebp", "esi", "edi", /* 4 - 7 */
7961 "eip", "eflags", NULL
, /* 8 - 10 */
7962 "st0", "st1", "st2", "st3", /* 11 - 14 */
7963 "st4", "st5", "st6", "st7", /* 15 - 18 */
7964 NULL
, NULL
, /* 19 - 20 */
7965 "xmm0", "xmm1", "xmm2", "xmm3", /* 21 - 24 */
7966 "xmm4", "xmm5", "xmm6", "xmm7", /* 25 - 28 */
7967 "mm0", "mm1", "mm2", "mm3", /* 29 - 32 */
7968 "mm4", "mm5", "mm6", "mm7", /* 33 - 36 */
7969 "fcw", "fsw", "mxcsr", /* 37 - 39 */
7970 "es", "cs", "ss", "ds", "fs", "gs", NULL
, NULL
, /* 40 - 47 */
7971 "tr", "ldtr", /* 48 - 49 */
7972 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 50 - 57 */
7973 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 58 - 65 */
7974 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 66 - 73 */
7975 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 74 - 81 */
7976 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 82 - 89 */
7977 NULL
, NULL
, NULL
, /* 90 - 92 */
7978 "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" /* 93 - 100 */
7981 static const char *const dwarf_regnames_iamcu
[] =
7983 "eax", "ecx", "edx", "ebx", /* 0 - 3 */
7984 "esp", "ebp", "esi", "edi", /* 4 - 7 */
7985 "eip", "eflags", NULL
, /* 8 - 10 */
7986 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 11 - 18 */
7987 NULL
, NULL
, /* 19 - 20 */
7988 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 21 - 28 */
7989 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 29 - 36 */
7990 NULL
, NULL
, NULL
, /* 37 - 39 */
7991 "es", "cs", "ss", "ds", "fs", "gs", NULL
, NULL
, /* 40 - 47 */
7992 "tr", "ldtr", /* 48 - 49 */
7993 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 50 - 57 */
7994 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 58 - 65 */
7995 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 66 - 73 */
7996 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 74 - 81 */
7997 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 82 - 89 */
7998 NULL
, NULL
, NULL
, /* 90 - 92 */
7999 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
/* 93 - 100 */
8003 init_dwarf_regnames_i386 (void)
8005 dwarf_regnames
= dwarf_regnames_i386
;
8006 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_i386
);
8007 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8011 init_dwarf_regnames_iamcu (void)
8013 dwarf_regnames
= dwarf_regnames_iamcu
;
8014 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_iamcu
);
8015 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8018 static const char *const dwarf_regnames_x86_64
[] =
8020 "rax", "rdx", "rcx", "rbx",
8021 "rsi", "rdi", "rbp", "rsp",
8022 "r8", "r9", "r10", "r11",
8023 "r12", "r13", "r14", "r15",
8025 "xmm0", "xmm1", "xmm2", "xmm3",
8026 "xmm4", "xmm5", "xmm6", "xmm7",
8027 "xmm8", "xmm9", "xmm10", "xmm11",
8028 "xmm12", "xmm13", "xmm14", "xmm15",
8029 "st0", "st1", "st2", "st3",
8030 "st4", "st5", "st6", "st7",
8031 "mm0", "mm1", "mm2", "mm3",
8032 "mm4", "mm5", "mm6", "mm7",
8034 "es", "cs", "ss", "ds", "fs", "gs", NULL
, NULL
,
8035 "fs.base", "gs.base", NULL
, NULL
,
8037 "mxcsr", "fcw", "fsw",
8038 "xmm16", "xmm17", "xmm18", "xmm19",
8039 "xmm20", "xmm21", "xmm22", "xmm23",
8040 "xmm24", "xmm25", "xmm26", "xmm27",
8041 "xmm28", "xmm29", "xmm30", "xmm31",
8042 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 83 - 90 */
8043 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 91 - 98 */
8044 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 99 - 106 */
8045 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 107 - 114 */
8046 NULL
, NULL
, NULL
, /* 115 - 117 */
8047 "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7"
8051 init_dwarf_regnames_x86_64 (void)
8053 dwarf_regnames
= dwarf_regnames_x86_64
;
8054 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_x86_64
);
8055 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8058 static const char *const dwarf_regnames_aarch64
[] =
8060 "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7",
8061 "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15",
8062 "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23",
8063 "x24", "x25", "x26", "x27", "x28", "x29", "x30", "sp",
8064 NULL
, "elr", NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
8065 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, "vg", "ffr",
8066 "p0", "p1", "p2", "p3", "p4", "p5", "p6", "p7",
8067 "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15",
8068 "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7",
8069 "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15",
8070 "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23",
8071 "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31",
8072 "z0", "z1", "z2", "z3", "z4", "z5", "z6", "z7",
8073 "z8", "z9", "z10", "z11", "z12", "z13", "z14", "z15",
8074 "z16", "z17", "z18", "z19", "z20", "z21", "z22", "z23",
8075 "z24", "z25", "z26", "z27", "z28", "z29", "z30", "z31",
8079 init_dwarf_regnames_aarch64 (void)
8081 dwarf_regnames
= dwarf_regnames_aarch64
;
8082 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_aarch64
);
8083 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8086 static const char *const dwarf_regnames_s390
[] =
8088 /* Avoid saying "r5 (r5)", so omit the names of r0-r15. */
8089 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
8090 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
8091 "f0", "f2", "f4", "f6", "f1", "f3", "f5", "f7",
8092 "f8", "f10", "f12", "f14", "f9", "f11", "f13", "f15",
8093 "cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7",
8094 "cr8", "cr9", "cr10", "cr11", "cr12", "cr13", "cr14", "cr15",
8095 "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7",
8096 "a8", "a9", "a10", "a11", "a12", "a13", "a14", "a15",
8099 "v16", "v18", "v20", "v22", "v17", "v19", "v21", "v23",
8100 "v24", "v26", "v28", "v30", "v25", "v27", "v29", "v31",
8104 init_dwarf_regnames_s390 (void)
8106 dwarf_regnames
= dwarf_regnames_s390
;
8107 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_s390
);
8108 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8111 static const char *const dwarf_regnames_riscv
[] =
8113 "zero", "ra", "sp", "gp", "tp", "t0", "t1", "t2", /* 0 - 7 */
8114 "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5", /* 8 - 15 */
8115 "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7", /* 16 - 23 */
8116 "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6", /* 24 - 31 */
8117 "ft0", "ft1", "ft2", "ft3", "ft4", "ft5", "ft6", "ft7", /* 32 - 39 */
8118 "fs0", "fs1", /* 40 - 41 */
8119 "fa0", "fa1", "fa2", "fa3", "fa4", "fa5", "fa6", "fa7", /* 42 - 49 */
8120 "fs2", "fs3", "fs4", "fs5", "fs6", "fs7", "fs8", "fs9", /* 50 - 57 */
8121 "fs10", "fs11", /* 58 - 59 */
8122 "ft8", "ft9", "ft10", "ft11" /* 60 - 63 */
8125 /* A RISC-V replacement for REGNAME_INTERNAL_BY_TABLE_ONLY which handles
8126 the large number of CSRs. */
8129 regname_internal_riscv (unsigned int regno
)
8131 const char *name
= NULL
;
8133 /* Lookup in the table first, this covers GPR and FPR. */
8134 if (regno
< ARRAY_SIZE (dwarf_regnames_riscv
))
8135 name
= dwarf_regnames_riscv
[regno
];
8136 else if (regno
>= 4096 && regno
<= 8191)
8138 /* This might be a CSR, these live in a sparse number space from 4096
8139 to 8191 These numbers are defined in the RISC-V ELF ABI
8143 #define DECLARE_CSR(NAME,VALUE,CLASS,DEFINE_VER,ABORT_VER) \
8144 case VALUE + 4096: name = #NAME; break;
8145 #include "opcode/riscv-opc.h"
8150 static char csr_name
[10];
8151 snprintf (csr_name
, sizeof (csr_name
), "csr%d", (regno
- 4096));
8162 init_dwarf_regnames_riscv (void)
8164 dwarf_regnames
= NULL
;
8165 dwarf_regnames_count
= 8192;
8166 dwarf_regnames_lookup_func
= regname_internal_riscv
;
8170 init_dwarf_regnames_by_elf_machine_code (unsigned int e_machine
)
8172 dwarf_regnames_lookup_func
= NULL
;
8177 init_dwarf_regnames_i386 ();
8181 init_dwarf_regnames_iamcu ();
8187 init_dwarf_regnames_x86_64 ();
8191 init_dwarf_regnames_aarch64 ();
8195 init_dwarf_regnames_s390 ();
8199 init_dwarf_regnames_riscv ();
8207 /* Initialize the DWARF register name lookup state based on the
8208 architecture and specific machine type of a BFD. */
8211 init_dwarf_regnames_by_bfd_arch_and_mach (enum bfd_architecture arch
,
8214 dwarf_regnames_lookup_func
= NULL
;
8221 case bfd_mach_x86_64
:
8222 case bfd_mach_x86_64_intel_syntax
:
8223 case bfd_mach_x64_32
:
8224 case bfd_mach_x64_32_intel_syntax
:
8225 init_dwarf_regnames_x86_64 ();
8229 init_dwarf_regnames_i386 ();
8234 case bfd_arch_iamcu
:
8235 init_dwarf_regnames_iamcu ();
8238 case bfd_arch_aarch64
:
8239 init_dwarf_regnames_aarch64();
8243 init_dwarf_regnames_s390 ();
8246 case bfd_arch_riscv
:
8247 init_dwarf_regnames_riscv ();
8256 regname_internal_by_table_only (unsigned int regno
)
8258 if (dwarf_regnames
!= NULL
8259 && regno
< dwarf_regnames_count
8260 && dwarf_regnames
[regno
] != NULL
)
8261 return dwarf_regnames
[regno
];
8267 regname (unsigned int regno
, int name_only_p
)
8269 static char reg
[64];
8271 const char *name
= NULL
;
8273 if (dwarf_regnames_lookup_func
!= NULL
)
8274 name
= dwarf_regnames_lookup_func (regno
);
8280 snprintf (reg
, sizeof (reg
), "r%d (%s)", regno
, name
);
8283 snprintf (reg
, sizeof (reg
), "r%d", regno
);
8288 frame_display_row (Frame_Chunk
*fc
, int *need_col_headers
, unsigned int *max_regs
)
8293 if (*max_regs
!= fc
->ncols
)
8294 *max_regs
= fc
->ncols
;
8296 if (*need_col_headers
)
8298 *need_col_headers
= 0;
8300 printf ("%-*s CFA ", eh_addr_size
* 2, " LOC");
8302 for (r
= 0; r
< *max_regs
; r
++)
8303 if (fc
->col_type
[r
] != DW_CFA_unreferenced
)
8308 printf ("%-5s ", regname (r
, 1));
8314 print_dwarf_vma (fc
->pc_begin
, eh_addr_size
);
8316 strcpy (tmp
, "exp");
8318 sprintf (tmp
, "%s%+d", regname (fc
->cfa_reg
, 1), (int) fc
->cfa_offset
);
8319 printf ("%-8s ", tmp
);
8321 for (r
= 0; r
< fc
->ncols
; r
++)
8323 if (fc
->col_type
[r
] != DW_CFA_unreferenced
)
8325 switch (fc
->col_type
[r
])
8327 case DW_CFA_undefined
:
8330 case DW_CFA_same_value
:
8334 sprintf (tmp
, "c%+d", fc
->col_offset
[r
]);
8336 case DW_CFA_val_offset
:
8337 sprintf (tmp
, "v%+d", fc
->col_offset
[r
]);
8339 case DW_CFA_register
:
8340 sprintf (tmp
, "%s", regname (fc
->col_offset
[r
], 0));
8342 case DW_CFA_expression
:
8343 strcpy (tmp
, "exp");
8345 case DW_CFA_val_expression
:
8346 strcpy (tmp
, "vexp");
8349 strcpy (tmp
, "n/a");
8352 printf ("%-5s ", tmp
);
8358 #define GET(VAR, N) SAFE_BYTE_GET_AND_INC (VAR, start, N, end)
8360 static unsigned char *
8361 read_cie (unsigned char *start
, unsigned char *end
,
8362 Frame_Chunk
**p_cie
, int *p_version
,
8363 bfd_size_type
*p_aug_len
, unsigned char **p_aug
)
8367 unsigned char *augmentation_data
= NULL
;
8368 bfd_size_type augmentation_data_len
= 0;
8371 /* PR 17512: file: 001-228113-0.004. */
8375 fc
= (Frame_Chunk
*) xmalloc (sizeof (Frame_Chunk
));
8376 memset (fc
, 0, sizeof (Frame_Chunk
));
8378 fc
->col_type
= (short int *) xmalloc (sizeof (short int));
8379 fc
->col_offset
= (int *) xmalloc (sizeof (int));
8383 fc
->augmentation
= (char *) start
;
8384 /* PR 17512: file: 001-228113-0.004.
8385 Skip past augmentation name, but avoid running off the end of the data. */
8387 if (* start
++ == '\0')
8391 warn (_("No terminator for augmentation name\n"));
8395 if (strcmp (fc
->augmentation
, "eh") == 0)
8396 start
+= eh_addr_size
;
8400 GET (fc
->ptr_size
, 1);
8401 if (fc
->ptr_size
< 1 || fc
->ptr_size
> 8)
8403 warn (_("Invalid pointer size (%d) in CIE data\n"), fc
->ptr_size
);
8407 GET (fc
->segment_size
, 1);
8408 /* PR 17512: file: e99d2804. */
8409 if (fc
->segment_size
> 8 || fc
->segment_size
+ fc
->ptr_size
> 8)
8411 warn (_("Invalid segment size (%d) in CIE data\n"), fc
->segment_size
);
8415 eh_addr_size
= fc
->ptr_size
;
8419 fc
->ptr_size
= eh_addr_size
;
8420 fc
->segment_size
= 0;
8423 READ_ULEB (fc
->code_factor
, start
, end
);
8424 READ_SLEB (fc
->data_factor
, start
, end
);
8432 READ_ULEB (fc
->ra
, start
, end
);
8435 if (fc
->augmentation
[0] == 'z')
8437 READ_ULEB (augmentation_data_len
, start
, end
);
8438 augmentation_data
= start
;
8439 /* PR 17512: file: 11042-2589-0.004. */
8440 if (augmentation_data_len
> (bfd_size_type
) (end
- start
))
8442 warn (_("Augmentation data too long: 0x%s, expected at most %#lx\n"),
8443 dwarf_vmatoa ("x", augmentation_data_len
),
8444 (unsigned long) (end
- start
));
8447 start
+= augmentation_data_len
;
8450 if (augmentation_data_len
)
8454 unsigned char *qend
;
8456 p
= (unsigned char *) fc
->augmentation
+ 1;
8457 q
= augmentation_data
;
8458 qend
= q
+ augmentation_data_len
;
8460 while (p
< end
&& q
< qend
)
8465 q
+= 1 + size_of_encoded_value (*q
);
8467 fc
->fde_encoding
= *q
++;
8476 /* Note - it is OK if this loop terminates with q < qend.
8477 Padding may have been inserted to align the end of the CIE. */
8482 *p_version
= version
;
8485 *p_aug_len
= augmentation_data_len
;
8486 *p_aug
= augmentation_data
;
8491 free (fc
->col_offset
);
8492 free (fc
->col_type
);
8497 /* Prints out the contents on the DATA array formatted as unsigned bytes.
8498 If do_wide is not enabled, then formats the output to fit into 80 columns.
8499 PRINTED contains the number of characters already written to the current
8503 display_data (bfd_size_type printed
,
8504 const unsigned char * data
,
8505 const bfd_size_type len
)
8507 if (do_wide
|| len
< ((80 - printed
) / 3))
8508 for (printed
= 0; printed
< len
; ++printed
)
8509 printf (" %02x", data
[printed
]);
8512 for (printed
= 0; printed
< len
; ++printed
)
8514 if (printed
% (80 / 3) == 0)
8516 printf (" %02x", data
[printed
]);
8521 /* Prints out the contents on the augmentation data array.
8522 If do_wide is not enabled, then formats the output to fit into 80 columns. */
8525 display_augmentation_data (const unsigned char * data
, const bfd_size_type len
)
8529 i
= printf (_(" Augmentation data: "));
8530 display_data (i
, data
, len
);
8534 display_debug_frames (struct dwarf_section
*section
,
8535 void *file ATTRIBUTE_UNUSED
)
8537 unsigned char *start
= section
->start
;
8538 unsigned char *end
= start
+ section
->size
;
8539 unsigned char *section_start
= start
;
8540 Frame_Chunk
*chunks
= NULL
, *forward_refs
= NULL
;
8541 Frame_Chunk
*remembered_state
= NULL
;
8543 bool is_eh
= strcmp (section
->name
, ".eh_frame") == 0;
8544 unsigned int max_regs
= 0;
8545 const char *bad_reg
= _("bad register: ");
8546 unsigned int saved_eh_addr_size
= eh_addr_size
;
8548 introduce (section
, false);
8552 unsigned char *saved_start
;
8553 unsigned char *block_end
;
8558 int need_col_headers
= 1;
8559 unsigned char *augmentation_data
= NULL
;
8560 bfd_size_type augmentation_data_len
= 0;
8561 unsigned int encoded_ptr_size
= saved_eh_addr_size
;
8562 unsigned int offset_size
;
8563 unsigned int initial_length_size
;
8565 static Frame_Chunk fde_fc
;
8567 saved_start
= start
;
8569 SAFE_BYTE_GET_AND_INC (length
, start
, 4, end
);
8573 printf ("\n%08lx ZERO terminator\n\n",
8574 (unsigned long)(saved_start
- section_start
));
8575 /* Skip any zero terminators that directly follow.
8576 A corrupt section size could have loaded a whole
8577 slew of zero filled memory bytes. eg
8578 PR 17512: file: 070-19381-0.004. */
8579 while (start
< end
&& * start
== 0)
8584 if (length
== 0xffffffff)
8586 SAFE_BYTE_GET_AND_INC (length
, start
, 8, end
);
8588 initial_length_size
= 12;
8593 initial_length_size
= 4;
8596 block_end
= saved_start
+ length
+ initial_length_size
;
8597 if (block_end
> end
|| block_end
< start
)
8599 warn ("Invalid length 0x%s in FDE at %#08lx\n",
8600 dwarf_vmatoa_1 (NULL
, length
, offset_size
),
8601 (unsigned long) (saved_start
- section_start
));
8605 SAFE_BYTE_GET_AND_INC (cie_id
, start
, offset_size
, end
);
8607 if (is_eh
? (cie_id
== 0) : ((offset_size
== 4 && cie_id
== DW_CIE_ID
)
8608 || (offset_size
== 8 && cie_id
== DW64_CIE_ID
)))
8613 start
= read_cie (start
, end
, &cie
, &version
,
8614 &augmentation_data_len
, &augmentation_data
);
8615 /* PR 17512: file: 027-135133-0.005. */
8622 fc
->chunk_start
= saved_start
;
8623 mreg
= max_regs
> 0 ? max_regs
- 1 : 0;
8626 if (frame_need_space (fc
, mreg
) < 0)
8628 if (fc
->fde_encoding
)
8629 encoded_ptr_size
= size_of_encoded_value (fc
->fde_encoding
);
8631 printf ("\n%08lx ", (unsigned long) (saved_start
- section_start
));
8632 print_dwarf_vma (length
, fc
->ptr_size
);
8633 print_dwarf_vma (cie_id
, offset_size
);
8635 if (do_debug_frames_interp
)
8637 printf ("CIE \"%s\" cf=%d df=%d ra=%d\n", fc
->augmentation
,
8638 fc
->code_factor
, fc
->data_factor
, fc
->ra
);
8643 printf (" Version: %d\n", version
);
8644 printf (" Augmentation: \"%s\"\n", fc
->augmentation
);
8647 printf (" Pointer Size: %u\n", fc
->ptr_size
);
8648 printf (" Segment Size: %u\n", fc
->segment_size
);
8650 printf (" Code alignment factor: %u\n", fc
->code_factor
);
8651 printf (" Data alignment factor: %d\n", fc
->data_factor
);
8652 printf (" Return address column: %d\n", fc
->ra
);
8654 if (augmentation_data_len
)
8655 display_augmentation_data (augmentation_data
, augmentation_data_len
);
8662 unsigned char *look_for
;
8663 unsigned long segment_selector
;
8669 dwarf_vma sign
= (dwarf_vma
) 1 << (offset_size
* 8 - 1);
8670 cie_off
= (cie_off
^ sign
) - sign
;
8671 cie_off
= start
- 4 - section_start
- cie_off
;
8674 look_for
= section_start
+ cie_off
;
8675 if (cie_off
<= (dwarf_vma
) (saved_start
- section_start
))
8677 for (cie
= chunks
; cie
; cie
= cie
->next
)
8678 if (cie
->chunk_start
== look_for
)
8681 else if (cie_off
>= section
->size
)
8685 for (cie
= forward_refs
; cie
; cie
= cie
->next
)
8686 if (cie
->chunk_start
== look_for
)
8690 unsigned int off_size
;
8691 unsigned char *cie_scan
;
8693 cie_scan
= look_for
;
8695 SAFE_BYTE_GET_AND_INC (length
, cie_scan
, 4, end
);
8696 if (length
== 0xffffffff)
8698 SAFE_BYTE_GET_AND_INC (length
, cie_scan
, 8, end
);
8705 SAFE_BYTE_GET_AND_INC (c_id
, cie_scan
, off_size
, end
);
8708 : ((off_size
== 4 && c_id
== DW_CIE_ID
)
8709 || (off_size
== 8 && c_id
== DW64_CIE_ID
)))
8714 read_cie (cie_scan
, end
, &cie
, &version
,
8715 &augmentation_data_len
, &augmentation_data
);
8716 /* PR 17512: file: 3450-2098-0.004. */
8719 warn (_("Failed to read CIE information\n"));
8722 cie
->next
= forward_refs
;
8724 cie
->chunk_start
= look_for
;
8725 mreg
= max_regs
> 0 ? max_regs
- 1 : 0;
8728 if (frame_need_space (cie
, mreg
) < 0)
8730 warn (_("Invalid max register\n"));
8733 if (cie
->fde_encoding
)
8735 = size_of_encoded_value (cie
->fde_encoding
);
8742 memset (fc
, 0, sizeof (Frame_Chunk
));
8746 warn ("Invalid CIE pointer 0x%s in FDE at %#08lx\n",
8747 dwarf_vmatoa_1 (NULL
, cie_id
, offset_size
),
8748 (unsigned long) (saved_start
- section_start
));
8750 fc
->col_type
= (short int *) xmalloc (sizeof (short int));
8751 fc
->col_offset
= (int *) xmalloc (sizeof (int));
8752 if (frame_need_space (fc
, max_regs
> 0 ? max_regs
- 1 : 0) < 0)
8754 warn (_("Invalid max register\n"));
8758 fc
->augmentation
= "";
8759 fc
->fde_encoding
= 0;
8760 fc
->ptr_size
= eh_addr_size
;
8761 fc
->segment_size
= 0;
8765 fc
->ncols
= cie
->ncols
;
8766 fc
->col_type
= (short int *) xcmalloc (fc
->ncols
, sizeof (short int));
8767 fc
->col_offset
= (int *) xcmalloc (fc
->ncols
, sizeof (int));
8768 memcpy (fc
->col_type
, cie
->col_type
, fc
->ncols
* sizeof (short int));
8769 memcpy (fc
->col_offset
, cie
->col_offset
, fc
->ncols
* sizeof (int));
8770 fc
->augmentation
= cie
->augmentation
;
8771 fc
->ptr_size
= cie
->ptr_size
;
8772 eh_addr_size
= cie
->ptr_size
;
8773 fc
->segment_size
= cie
->segment_size
;
8774 fc
->code_factor
= cie
->code_factor
;
8775 fc
->data_factor
= cie
->data_factor
;
8776 fc
->cfa_reg
= cie
->cfa_reg
;
8777 fc
->cfa_offset
= cie
->cfa_offset
;
8779 if (frame_need_space (fc
, max_regs
> 0 ? max_regs
- 1: 0) < 0)
8781 warn (_("Invalid max register\n"));
8784 fc
->fde_encoding
= cie
->fde_encoding
;
8787 if (fc
->fde_encoding
)
8788 encoded_ptr_size
= size_of_encoded_value (fc
->fde_encoding
);
8790 segment_selector
= 0;
8791 if (fc
->segment_size
)
8793 if (fc
->segment_size
> sizeof (segment_selector
))
8795 /* PR 17512: file: 9e196b3e. */
8796 warn (_("Probably corrupt segment size: %d - using 4 instead\n"), fc
->segment_size
);
8797 fc
->segment_size
= 4;
8799 SAFE_BYTE_GET_AND_INC (segment_selector
, start
, fc
->segment_size
, end
);
8802 fc
->pc_begin
= get_encoded_value (&start
, fc
->fde_encoding
, section
, end
);
8804 /* FIXME: It appears that sometimes the final pc_range value is
8805 encoded in less than encoded_ptr_size bytes. See the x86_64
8806 run of the "objcopy on compressed debug sections" test for an
8808 SAFE_BYTE_GET_AND_INC (fc
->pc_range
, start
, encoded_ptr_size
, end
);
8810 if (cie
->augmentation
[0] == 'z')
8812 READ_ULEB (augmentation_data_len
, start
, end
);
8813 augmentation_data
= start
;
8814 /* PR 17512 file: 722-8446-0.004 and PR 22386. */
8815 if (augmentation_data_len
> (bfd_size_type
) (end
- start
))
8817 warn (_("Augmentation data too long: 0x%s, "
8818 "expected at most %#lx\n"),
8819 dwarf_vmatoa ("x", augmentation_data_len
),
8820 (unsigned long) (end
- start
));
8822 augmentation_data
= NULL
;
8823 augmentation_data_len
= 0;
8825 start
+= augmentation_data_len
;
8828 printf ("\n%08lx %s %s FDE cie=%08lx pc=",
8829 (unsigned long)(saved_start
- section_start
),
8830 dwarf_vmatoa_1 (NULL
, length
, fc
->ptr_size
),
8831 dwarf_vmatoa_1 (NULL
, cie_id
, offset_size
),
8832 (unsigned long)(cie
->chunk_start
- section_start
));
8834 if (fc
->segment_size
)
8835 printf ("%04lx:", segment_selector
);
8838 dwarf_vmatoa_1 (NULL
, fc
->pc_begin
, fc
->ptr_size
),
8839 dwarf_vmatoa_1 (NULL
, fc
->pc_begin
+ fc
->pc_range
, fc
->ptr_size
));
8841 if (! do_debug_frames_interp
&& augmentation_data_len
)
8843 display_augmentation_data (augmentation_data
, augmentation_data_len
);
8848 /* At this point, fc is the current chunk, cie (if any) is set, and
8849 we're about to interpret instructions for the chunk. */
8850 /* ??? At present we need to do this always, since this sizes the
8851 fc->col_type and fc->col_offset arrays, which we write into always.
8852 We should probably split the interpreted and non-interpreted bits
8853 into two different routines, since there's so much that doesn't
8854 really overlap between them. */
8855 if (1 || do_debug_frames_interp
)
8857 /* Start by making a pass over the chunk, allocating storage
8858 and taking note of what registers are used. */
8859 unsigned char *tmp
= start
;
8861 while (start
< block_end
)
8863 unsigned int reg
, op
, opa
;
8865 unsigned char * new_start
;
8872 /* Warning: if you add any more cases to this switch, be
8873 sure to add them to the corresponding switch below. */
8876 case DW_CFA_advance_loc
:
8879 SKIP_ULEB (start
, end
);
8880 if (frame_need_space (fc
, opa
) >= 0)
8881 fc
->col_type
[opa
] = DW_CFA_undefined
;
8883 case DW_CFA_restore
:
8884 if (frame_need_space (fc
, opa
) >= 0)
8885 fc
->col_type
[opa
] = DW_CFA_undefined
;
8887 case DW_CFA_set_loc
:
8888 start
+= encoded_ptr_size
;
8890 case DW_CFA_advance_loc1
:
8893 case DW_CFA_advance_loc2
:
8896 case DW_CFA_advance_loc4
:
8899 case DW_CFA_offset_extended
:
8900 case DW_CFA_val_offset
:
8901 READ_ULEB (reg
, start
, end
);
8902 SKIP_ULEB (start
, end
);
8903 if (frame_need_space (fc
, reg
) >= 0)
8904 fc
->col_type
[reg
] = DW_CFA_undefined
;
8906 case DW_CFA_restore_extended
:
8907 READ_ULEB (reg
, start
, end
);
8908 if (frame_need_space (fc
, reg
) >= 0)
8909 fc
->col_type
[reg
] = DW_CFA_undefined
;
8911 case DW_CFA_undefined
:
8912 READ_ULEB (reg
, start
, end
);
8913 if (frame_need_space (fc
, reg
) >= 0)
8914 fc
->col_type
[reg
] = DW_CFA_undefined
;
8916 case DW_CFA_same_value
:
8917 READ_ULEB (reg
, start
, end
);
8918 if (frame_need_space (fc
, reg
) >= 0)
8919 fc
->col_type
[reg
] = DW_CFA_undefined
;
8921 case DW_CFA_register
:
8922 READ_ULEB (reg
, start
, end
);
8923 SKIP_ULEB (start
, end
);
8924 if (frame_need_space (fc
, reg
) >= 0)
8925 fc
->col_type
[reg
] = DW_CFA_undefined
;
8927 case DW_CFA_def_cfa
:
8928 SKIP_ULEB (start
, end
);
8929 SKIP_ULEB (start
, end
);
8931 case DW_CFA_def_cfa_register
:
8932 SKIP_ULEB (start
, end
);
8934 case DW_CFA_def_cfa_offset
:
8935 SKIP_ULEB (start
, end
);
8937 case DW_CFA_def_cfa_expression
:
8938 READ_ULEB (temp
, start
, end
);
8939 new_start
= start
+ temp
;
8940 if (new_start
< start
)
8942 warn (_("Corrupt CFA_def expression value: %lu\n"), temp
);
8948 case DW_CFA_expression
:
8949 case DW_CFA_val_expression
:
8950 READ_ULEB (reg
, start
, end
);
8951 READ_ULEB (temp
, start
, end
);
8952 new_start
= start
+ temp
;
8953 if (new_start
< start
)
8955 /* PR 17512: file:306-192417-0.005. */
8956 warn (_("Corrupt CFA expression value: %lu\n"), temp
);
8961 if (frame_need_space (fc
, reg
) >= 0)
8962 fc
->col_type
[reg
] = DW_CFA_undefined
;
8964 case DW_CFA_offset_extended_sf
:
8965 case DW_CFA_val_offset_sf
:
8966 READ_ULEB (reg
, start
, end
);
8967 SKIP_SLEB (start
, end
);
8968 if (frame_need_space (fc
, reg
) >= 0)
8969 fc
->col_type
[reg
] = DW_CFA_undefined
;
8971 case DW_CFA_def_cfa_sf
:
8972 SKIP_ULEB (start
, end
);
8973 SKIP_SLEB (start
, end
);
8975 case DW_CFA_def_cfa_offset_sf
:
8976 SKIP_SLEB (start
, end
);
8978 case DW_CFA_MIPS_advance_loc8
:
8981 case DW_CFA_GNU_args_size
:
8982 SKIP_ULEB (start
, end
);
8984 case DW_CFA_GNU_negative_offset_extended
:
8985 READ_ULEB (reg
, start
, end
);
8986 SKIP_ULEB (start
, end
);
8987 if (frame_need_space (fc
, reg
) >= 0)
8988 fc
->col_type
[reg
] = DW_CFA_undefined
;
8999 /* Now we know what registers are used, make a second pass over
9000 the chunk, this time actually printing out the info. */
9002 while (start
< block_end
)
9004 unsigned char * tmp
;
9006 unsigned long ul
, roffs
;
9007 /* Note: It is tempting to use an unsigned long for 'reg' but there
9008 are various functions, notably frame_space_needed() that assume that
9009 reg is an unsigned int. */
9014 const char *reg_prefix
= "";
9021 /* Make a note if something other than DW_CFA_nop happens. */
9022 if (op
!= DW_CFA_nop
)
9025 /* Warning: if you add any more cases to this switch, be
9026 sure to add them to the corresponding switch above. */
9029 case DW_CFA_advance_loc
:
9030 if (do_debug_frames_interp
)
9031 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9033 printf (" DW_CFA_advance_loc: %d to %s\n",
9034 opa
* fc
->code_factor
,
9035 dwarf_vmatoa_1 (NULL
,
9036 fc
->pc_begin
+ opa
* fc
->code_factor
,
9038 fc
->pc_begin
+= opa
* fc
->code_factor
;
9042 READ_ULEB (roffs
, start
, end
);
9043 if (opa
>= (unsigned int) fc
->ncols
)
9044 reg_prefix
= bad_reg
;
9045 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9046 printf (" DW_CFA_offset: %s%s at cfa%+ld\n",
9047 reg_prefix
, regname (opa
, 0),
9048 roffs
* fc
->data_factor
);
9049 if (*reg_prefix
== '\0')
9051 fc
->col_type
[opa
] = DW_CFA_offset
;
9052 fc
->col_offset
[opa
] = roffs
* fc
->data_factor
;
9056 case DW_CFA_restore
:
9057 if (opa
>= (unsigned int) fc
->ncols
)
9058 reg_prefix
= bad_reg
;
9059 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9060 printf (" DW_CFA_restore: %s%s\n",
9061 reg_prefix
, regname (opa
, 0));
9062 if (*reg_prefix
!= '\0')
9065 if (opa
>= (unsigned int) cie
->ncols
9066 || (do_debug_frames_interp
9067 && cie
->col_type
[opa
] == DW_CFA_unreferenced
))
9069 fc
->col_type
[opa
] = DW_CFA_undefined
;
9070 fc
->col_offset
[opa
] = 0;
9074 fc
->col_type
[opa
] = cie
->col_type
[opa
];
9075 fc
->col_offset
[opa
] = cie
->col_offset
[opa
];
9079 case DW_CFA_set_loc
:
9080 vma
= get_encoded_value (&start
, fc
->fde_encoding
, section
, block_end
);
9081 if (do_debug_frames_interp
)
9082 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9084 printf (" DW_CFA_set_loc: %s\n",
9085 dwarf_vmatoa_1 (NULL
, vma
, fc
->ptr_size
));
9089 case DW_CFA_advance_loc1
:
9090 SAFE_BYTE_GET_AND_INC (ofs
, start
, 1, end
);
9091 if (do_debug_frames_interp
)
9092 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9094 printf (" DW_CFA_advance_loc1: %ld to %s\n",
9095 (unsigned long) (ofs
* fc
->code_factor
),
9096 dwarf_vmatoa_1 (NULL
,
9097 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9099 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9102 case DW_CFA_advance_loc2
:
9103 SAFE_BYTE_GET_AND_INC (ofs
, start
, 2, block_end
);
9104 if (do_debug_frames_interp
)
9105 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9107 printf (" DW_CFA_advance_loc2: %ld to %s\n",
9108 (unsigned long) (ofs
* fc
->code_factor
),
9109 dwarf_vmatoa_1 (NULL
,
9110 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9112 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9115 case DW_CFA_advance_loc4
:
9116 SAFE_BYTE_GET_AND_INC (ofs
, start
, 4, block_end
);
9117 if (do_debug_frames_interp
)
9118 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9120 printf (" DW_CFA_advance_loc4: %ld to %s\n",
9121 (unsigned long) (ofs
* fc
->code_factor
),
9122 dwarf_vmatoa_1 (NULL
,
9123 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9125 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9128 case DW_CFA_offset_extended
:
9129 READ_ULEB (reg
, start
, end
);
9130 READ_ULEB (roffs
, start
, end
);
9131 if (reg
>= (unsigned int) fc
->ncols
)
9132 reg_prefix
= bad_reg
;
9133 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9134 printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n",
9135 reg_prefix
, regname (reg
, 0),
9136 roffs
* fc
->data_factor
);
9137 if (*reg_prefix
== '\0')
9139 fc
->col_type
[reg
] = DW_CFA_offset
;
9140 fc
->col_offset
[reg
] = roffs
* fc
->data_factor
;
9144 case DW_CFA_val_offset
:
9145 READ_ULEB (reg
, start
, end
);
9146 READ_ULEB (roffs
, start
, end
);
9147 if (reg
>= (unsigned int) fc
->ncols
)
9148 reg_prefix
= bad_reg
;
9149 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9150 printf (" DW_CFA_val_offset: %s%s is cfa%+ld\n",
9151 reg_prefix
, regname (reg
, 0),
9152 roffs
* fc
->data_factor
);
9153 if (*reg_prefix
== '\0')
9155 fc
->col_type
[reg
] = DW_CFA_val_offset
;
9156 fc
->col_offset
[reg
] = roffs
* fc
->data_factor
;
9160 case DW_CFA_restore_extended
:
9161 READ_ULEB (reg
, start
, end
);
9162 if (reg
>= (unsigned int) fc
->ncols
)
9163 reg_prefix
= bad_reg
;
9164 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9165 printf (" DW_CFA_restore_extended: %s%s\n",
9166 reg_prefix
, regname (reg
, 0));
9167 if (*reg_prefix
!= '\0')
9170 if (reg
>= (unsigned int) cie
->ncols
)
9172 fc
->col_type
[reg
] = DW_CFA_undefined
;
9173 fc
->col_offset
[reg
] = 0;
9177 fc
->col_type
[reg
] = cie
->col_type
[reg
];
9178 fc
->col_offset
[reg
] = cie
->col_offset
[reg
];
9182 case DW_CFA_undefined
:
9183 READ_ULEB (reg
, start
, end
);
9184 if (reg
>= (unsigned int) fc
->ncols
)
9185 reg_prefix
= bad_reg
;
9186 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9187 printf (" DW_CFA_undefined: %s%s\n",
9188 reg_prefix
, regname (reg
, 0));
9189 if (*reg_prefix
== '\0')
9191 fc
->col_type
[reg
] = DW_CFA_undefined
;
9192 fc
->col_offset
[reg
] = 0;
9196 case DW_CFA_same_value
:
9197 READ_ULEB (reg
, start
, end
);
9198 if (reg
>= (unsigned int) fc
->ncols
)
9199 reg_prefix
= bad_reg
;
9200 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9201 printf (" DW_CFA_same_value: %s%s\n",
9202 reg_prefix
, regname (reg
, 0));
9203 if (*reg_prefix
== '\0')
9205 fc
->col_type
[reg
] = DW_CFA_same_value
;
9206 fc
->col_offset
[reg
] = 0;
9210 case DW_CFA_register
:
9211 READ_ULEB (reg
, start
, end
);
9212 READ_ULEB (roffs
, start
, end
);
9213 if (reg
>= (unsigned int) fc
->ncols
)
9214 reg_prefix
= bad_reg
;
9215 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9217 printf (" DW_CFA_register: %s%s in ",
9218 reg_prefix
, regname (reg
, 0));
9219 puts (regname (roffs
, 0));
9221 if (*reg_prefix
== '\0')
9223 fc
->col_type
[reg
] = DW_CFA_register
;
9224 fc
->col_offset
[reg
] = roffs
;
9228 case DW_CFA_remember_state
:
9229 if (! do_debug_frames_interp
)
9230 printf (" DW_CFA_remember_state\n");
9231 rs
= (Frame_Chunk
*) xmalloc (sizeof (Frame_Chunk
));
9232 rs
->cfa_offset
= fc
->cfa_offset
;
9233 rs
->cfa_reg
= fc
->cfa_reg
;
9235 rs
->cfa_exp
= fc
->cfa_exp
;
9236 rs
->ncols
= fc
->ncols
;
9237 rs
->col_type
= (short int *) xcmalloc (rs
->ncols
,
9238 sizeof (* rs
->col_type
));
9239 rs
->col_offset
= (int *) xcmalloc (rs
->ncols
, sizeof (* rs
->col_offset
));
9240 memcpy (rs
->col_type
, fc
->col_type
, rs
->ncols
* sizeof (* fc
->col_type
));
9241 memcpy (rs
->col_offset
, fc
->col_offset
, rs
->ncols
* sizeof (* fc
->col_offset
));
9242 rs
->next
= remembered_state
;
9243 remembered_state
= rs
;
9246 case DW_CFA_restore_state
:
9247 if (! do_debug_frames_interp
)
9248 printf (" DW_CFA_restore_state\n");
9249 rs
= remembered_state
;
9252 remembered_state
= rs
->next
;
9253 fc
->cfa_offset
= rs
->cfa_offset
;
9254 fc
->cfa_reg
= rs
->cfa_reg
;
9256 fc
->cfa_exp
= rs
->cfa_exp
;
9257 if (frame_need_space (fc
, rs
->ncols
- 1) < 0)
9259 warn (_("Invalid column number in saved frame state\n"));
9263 memcpy (fc
->col_type
, rs
->col_type
, rs
->ncols
* sizeof (* rs
->col_type
));
9264 memcpy (fc
->col_offset
, rs
->col_offset
,
9265 rs
->ncols
* sizeof (* rs
->col_offset
));
9266 free (rs
->col_type
);
9267 free (rs
->col_offset
);
9270 else if (do_debug_frames_interp
)
9271 printf ("Mismatched DW_CFA_restore_state\n");
9274 case DW_CFA_def_cfa
:
9275 READ_ULEB (fc
->cfa_reg
, start
, end
);
9276 READ_ULEB (fc
->cfa_offset
, start
, end
);
9278 if (! do_debug_frames_interp
)
9279 printf (" DW_CFA_def_cfa: %s ofs %d\n",
9280 regname (fc
->cfa_reg
, 0), (int) fc
->cfa_offset
);
9283 case DW_CFA_def_cfa_register
:
9284 READ_ULEB (fc
->cfa_reg
, start
, end
);
9286 if (! do_debug_frames_interp
)
9287 printf (" DW_CFA_def_cfa_register: %s\n",
9288 regname (fc
->cfa_reg
, 0));
9291 case DW_CFA_def_cfa_offset
:
9292 READ_ULEB (fc
->cfa_offset
, start
, end
);
9293 if (! do_debug_frames_interp
)
9294 printf (" DW_CFA_def_cfa_offset: %d\n", (int) fc
->cfa_offset
);
9298 if (! do_debug_frames_interp
)
9299 printf (" DW_CFA_nop\n");
9302 case DW_CFA_def_cfa_expression
:
9303 READ_ULEB (ul
, start
, end
);
9304 if (start
>= block_end
|| ul
> (unsigned long) (block_end
- start
))
9306 printf (_(" DW_CFA_def_cfa_expression: <corrupt len %lu>\n"), ul
);
9309 if (! do_debug_frames_interp
)
9311 printf (" DW_CFA_def_cfa_expression (");
9312 decode_location_expression (start
, eh_addr_size
, 0, -1,
9320 case DW_CFA_expression
:
9321 READ_ULEB (reg
, start
, end
);
9322 READ_ULEB (ul
, start
, end
);
9323 if (reg
>= (unsigned int) fc
->ncols
)
9324 reg_prefix
= bad_reg
;
9325 /* PR 17512: file: 069-133014-0.006. */
9326 /* PR 17512: file: 98c02eb4. */
9328 if (start
>= block_end
|| tmp
> block_end
|| tmp
< start
)
9330 printf (_(" DW_CFA_expression: <corrupt len %lu>\n"), ul
);
9333 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9335 printf (" DW_CFA_expression: %s%s (",
9336 reg_prefix
, regname (reg
, 0));
9337 decode_location_expression (start
, eh_addr_size
, 0, -1,
9341 if (*reg_prefix
== '\0')
9342 fc
->col_type
[reg
] = DW_CFA_expression
;
9346 case DW_CFA_val_expression
:
9347 READ_ULEB (reg
, start
, end
);
9348 READ_ULEB (ul
, start
, end
);
9349 if (reg
>= (unsigned int) fc
->ncols
)
9350 reg_prefix
= bad_reg
;
9352 if (start
>= block_end
|| tmp
> block_end
|| tmp
< start
)
9354 printf (" DW_CFA_val_expression: <corrupt len %lu>\n", ul
);
9357 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9359 printf (" DW_CFA_val_expression: %s%s (",
9360 reg_prefix
, regname (reg
, 0));
9361 decode_location_expression (start
, eh_addr_size
, 0, -1,
9365 if (*reg_prefix
== '\0')
9366 fc
->col_type
[reg
] = DW_CFA_val_expression
;
9370 case DW_CFA_offset_extended_sf
:
9371 READ_ULEB (reg
, start
, end
);
9372 READ_SLEB (l
, start
, end
);
9373 if (frame_need_space (fc
, reg
) < 0)
9374 reg_prefix
= bad_reg
;
9375 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9376 printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n",
9377 reg_prefix
, regname (reg
, 0),
9378 (long)(l
* fc
->data_factor
));
9379 if (*reg_prefix
== '\0')
9381 fc
->col_type
[reg
] = DW_CFA_offset
;
9382 fc
->col_offset
[reg
] = l
* fc
->data_factor
;
9386 case DW_CFA_val_offset_sf
:
9387 READ_ULEB (reg
, start
, end
);
9388 READ_SLEB (l
, start
, end
);
9389 if (frame_need_space (fc
, reg
) < 0)
9390 reg_prefix
= bad_reg
;
9391 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9392 printf (" DW_CFA_val_offset_sf: %s%s is cfa%+ld\n",
9393 reg_prefix
, regname (reg
, 0),
9394 (long)(l
* fc
->data_factor
));
9395 if (*reg_prefix
== '\0')
9397 fc
->col_type
[reg
] = DW_CFA_val_offset
;
9398 fc
->col_offset
[reg
] = l
* fc
->data_factor
;
9402 case DW_CFA_def_cfa_sf
:
9403 READ_ULEB (fc
->cfa_reg
, start
, end
);
9404 READ_ULEB (fc
->cfa_offset
, start
, end
);
9405 fc
->cfa_offset
= fc
->cfa_offset
* fc
->data_factor
;
9407 if (! do_debug_frames_interp
)
9408 printf (" DW_CFA_def_cfa_sf: %s ofs %d\n",
9409 regname (fc
->cfa_reg
, 0), (int) fc
->cfa_offset
);
9412 case DW_CFA_def_cfa_offset_sf
:
9413 READ_ULEB (fc
->cfa_offset
, start
, end
);
9414 fc
->cfa_offset
*= fc
->data_factor
;
9415 if (! do_debug_frames_interp
)
9416 printf (" DW_CFA_def_cfa_offset_sf: %d\n", (int) fc
->cfa_offset
);
9419 case DW_CFA_MIPS_advance_loc8
:
9420 SAFE_BYTE_GET_AND_INC (ofs
, start
, 8, block_end
);
9421 if (do_debug_frames_interp
)
9422 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9424 printf (" DW_CFA_MIPS_advance_loc8: %ld to %s\n",
9425 (unsigned long) (ofs
* fc
->code_factor
),
9426 dwarf_vmatoa_1 (NULL
,
9427 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9429 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9432 case DW_CFA_GNU_window_save
:
9433 if (! do_debug_frames_interp
)
9434 printf (" DW_CFA_GNU_window_save\n");
9437 case DW_CFA_GNU_args_size
:
9438 READ_ULEB (ul
, start
, end
);
9439 if (! do_debug_frames_interp
)
9440 printf (" DW_CFA_GNU_args_size: %ld\n", ul
);
9443 case DW_CFA_GNU_negative_offset_extended
:
9444 READ_ULEB (reg
, start
, end
);
9445 READ_SLEB (l
, start
, end
);
9447 if (frame_need_space (fc
, reg
) < 0)
9448 reg_prefix
= bad_reg
;
9449 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9450 printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n",
9451 reg_prefix
, regname (reg
, 0),
9452 (long)(l
* fc
->data_factor
));
9453 if (*reg_prefix
== '\0')
9455 fc
->col_type
[reg
] = DW_CFA_offset
;
9456 fc
->col_offset
[reg
] = l
* fc
->data_factor
;
9461 if (op
>= DW_CFA_lo_user
&& op
<= DW_CFA_hi_user
)
9462 printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op
);
9464 warn (_("Unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op
);
9469 /* Interpret the CFA - as long as it is not completely full of NOPs. */
9470 if (do_debug_frames_interp
&& ! all_nops
)
9471 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9473 if (fde_fc
.col_type
!= NULL
)
9475 free (fde_fc
.col_type
);
9476 fde_fc
.col_type
= NULL
;
9478 if (fde_fc
.col_offset
!= NULL
)
9480 free (fde_fc
.col_offset
);
9481 fde_fc
.col_offset
= NULL
;
9485 eh_addr_size
= saved_eh_addr_size
;
9490 while (remembered_state
!= NULL
)
9492 rs
= remembered_state
;
9493 remembered_state
= rs
->next
;
9494 free (rs
->col_type
);
9495 free (rs
->col_offset
);
9496 rs
->next
= NULL
; /* Paranoia. */
9500 while (chunks
!= NULL
)
9504 free (rs
->col_type
);
9505 free (rs
->col_offset
);
9506 rs
->next
= NULL
; /* Paranoia. */
9510 while (forward_refs
!= NULL
)
9513 forward_refs
= rs
->next
;
9514 free (rs
->col_type
);
9515 free (rs
->col_offset
);
9516 rs
->next
= NULL
; /* Paranoia. */
9526 display_debug_names (struct dwarf_section
*section
, void *file
)
9528 unsigned char *hdrptr
= section
->start
;
9529 dwarf_vma unit_length
;
9530 unsigned char *unit_start
;
9531 const unsigned char *const section_end
= section
->start
+ section
->size
;
9532 unsigned char *unit_end
;
9534 introduce (section
, false);
9536 load_debug_section_with_follow (str
, file
);
9538 for (; hdrptr
< section_end
; hdrptr
= unit_end
)
9540 unsigned int offset_size
;
9541 uint16_t dwarf_version
, padding
;
9542 uint32_t comp_unit_count
, local_type_unit_count
, foreign_type_unit_count
;
9543 uint32_t bucket_count
, name_count
, abbrev_table_size
;
9544 uint32_t augmentation_string_size
;
9546 unsigned long sec_off
;
9547 bool augmentation_printable
;
9548 const char *augmentation_string
;
9550 unit_start
= hdrptr
;
9552 /* Get and check the length of the block. */
9553 SAFE_BYTE_GET_AND_INC (unit_length
, hdrptr
, 4, section_end
);
9555 if (unit_length
== 0xffffffff)
9557 /* This section is 64-bit DWARF. */
9558 SAFE_BYTE_GET_AND_INC (unit_length
, hdrptr
, 8, section_end
);
9563 unit_end
= hdrptr
+ unit_length
;
9565 sec_off
= hdrptr
- section
->start
;
9566 if (sec_off
+ unit_length
< sec_off
9567 || sec_off
+ unit_length
> section
->size
)
9569 warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
9571 (unsigned long) (unit_start
- section
->start
),
9572 dwarf_vmatoa ("x", unit_length
));
9576 /* Get and check the version number. */
9577 SAFE_BYTE_GET_AND_INC (dwarf_version
, hdrptr
, 2, unit_end
);
9578 printf (_("Version %ld\n"), (long) dwarf_version
);
9580 /* Prior versions did not exist, and future versions may not be
9581 backwards compatible. */
9582 if (dwarf_version
!= 5)
9584 warn (_("Only DWARF version 5 .debug_names "
9585 "is currently supported.\n"));
9589 SAFE_BYTE_GET_AND_INC (padding
, hdrptr
, 2, unit_end
);
9591 warn (_("Padding field of .debug_names must be 0 (found 0x%x)\n"),
9594 SAFE_BYTE_GET_AND_INC (comp_unit_count
, hdrptr
, 4, unit_end
);
9595 if (comp_unit_count
== 0)
9596 warn (_("Compilation unit count must be >= 1 in .debug_names\n"));
9598 SAFE_BYTE_GET_AND_INC (local_type_unit_count
, hdrptr
, 4, unit_end
);
9599 SAFE_BYTE_GET_AND_INC (foreign_type_unit_count
, hdrptr
, 4, unit_end
);
9600 SAFE_BYTE_GET_AND_INC (bucket_count
, hdrptr
, 4, unit_end
);
9601 SAFE_BYTE_GET_AND_INC (name_count
, hdrptr
, 4, unit_end
);
9602 SAFE_BYTE_GET_AND_INC (abbrev_table_size
, hdrptr
, 4, unit_end
);
9604 SAFE_BYTE_GET_AND_INC (augmentation_string_size
, hdrptr
, 4, unit_end
);
9605 if (augmentation_string_size
% 4 != 0)
9607 warn (_("Augmentation string length %u must be rounded up "
9608 "to a multiple of 4 in .debug_names.\n"),
9609 augmentation_string_size
);
9610 augmentation_string_size
+= (-augmentation_string_size
) & 3;
9613 printf (_("Augmentation string:"));
9615 augmentation_printable
= true;
9616 augmentation_string
= (const char *) hdrptr
;
9618 for (i
= 0; i
< augmentation_string_size
; i
++)
9622 SAFE_BYTE_GET_AND_INC (uc
, hdrptr
, 1, unit_end
);
9623 printf (" %02x", uc
);
9625 if (uc
!= 0 && !ISPRINT (uc
))
9626 augmentation_printable
= false;
9629 if (augmentation_printable
)
9633 i
< augmentation_string_size
&& augmentation_string
[i
];
9635 putchar (augmentation_string
[i
]);
9640 printf (_("CU table:\n"));
9641 for (i
= 0; i
< comp_unit_count
; i
++)
9645 SAFE_BYTE_GET_AND_INC (cu_offset
, hdrptr
, offset_size
, unit_end
);
9646 printf (_("[%3u] 0x%lx\n"), i
, (unsigned long) cu_offset
);
9650 printf (_("TU table:\n"));
9651 for (i
= 0; i
< local_type_unit_count
; i
++)
9655 SAFE_BYTE_GET_AND_INC (tu_offset
, hdrptr
, offset_size
, unit_end
);
9656 printf (_("[%3u] 0x%lx\n"), i
, (unsigned long) tu_offset
);
9660 printf (_("Foreign TU table:\n"));
9661 for (i
= 0; i
< foreign_type_unit_count
; i
++)
9665 SAFE_BYTE_GET_AND_INC (signature
, hdrptr
, 8, unit_end
);
9666 printf (_("[%3u] "), i
);
9667 print_dwarf_vma (signature
, 8);
9672 const uint32_t *const hash_table_buckets
= (uint32_t *) hdrptr
;
9673 hdrptr
+= bucket_count
* sizeof (uint32_t);
9674 const uint32_t *const hash_table_hashes
= (uint32_t *) hdrptr
;
9675 hdrptr
+= name_count
* sizeof (uint32_t);
9676 unsigned char *const name_table_string_offsets
= hdrptr
;
9677 hdrptr
+= name_count
* offset_size
;
9678 unsigned char *const name_table_entry_offsets
= hdrptr
;
9679 hdrptr
+= name_count
* offset_size
;
9680 unsigned char *const abbrev_table
= hdrptr
;
9681 hdrptr
+= abbrev_table_size
;
9682 const unsigned char *const abbrev_table_end
= hdrptr
;
9683 unsigned char *const entry_pool
= hdrptr
;
9684 if (hdrptr
> unit_end
)
9686 warn (_("Entry pool offset (0x%lx) exceeds unit size 0x%lx "
9687 "for unit 0x%lx in the debug_names\n"),
9688 (long) (hdrptr
- section
->start
),
9689 (long) (unit_end
- section
->start
),
9690 (long) (unit_start
- section
->start
));
9694 size_t buckets_filled
= 0;
9696 for (bucketi
= 0; bucketi
< bucket_count
; bucketi
++)
9698 const uint32_t bucket
= hash_table_buckets
[bucketi
];
9703 printf (ngettext ("Used %zu of %lu bucket.\n",
9704 "Used %zu of %lu buckets.\n",
9706 buckets_filled
, (unsigned long) bucket_count
);
9708 uint32_t hash_prev
= 0;
9709 size_t hash_clash_count
= 0;
9710 size_t longest_clash
= 0;
9711 size_t this_length
= 0;
9713 for (hashi
= 0; hashi
< name_count
; hashi
++)
9715 const uint32_t hash_this
= hash_table_hashes
[hashi
];
9719 if (hash_prev
% bucket_count
== hash_this
% bucket_count
)
9723 longest_clash
= MAX (longest_clash
, this_length
);
9728 hash_prev
= hash_this
;
9730 printf (_("Out of %lu items there are %zu bucket clashes"
9731 " (longest of %zu entries).\n"),
9732 (unsigned long) name_count
, hash_clash_count
, longest_clash
);
9733 assert (name_count
== buckets_filled
+ hash_clash_count
);
9735 struct abbrev_lookup_entry
9737 dwarf_vma abbrev_tag
;
9738 unsigned char *abbrev_lookup_ptr
;
9740 struct abbrev_lookup_entry
*abbrev_lookup
= NULL
;
9741 size_t abbrev_lookup_used
= 0;
9742 size_t abbrev_lookup_allocated
= 0;
9744 unsigned char *abbrevptr
= abbrev_table
;
9747 dwarf_vma abbrev_tag
;
9749 READ_ULEB (abbrev_tag
, abbrevptr
, abbrev_table_end
);
9750 if (abbrev_tag
== 0)
9752 if (abbrev_lookup_used
== abbrev_lookup_allocated
)
9754 abbrev_lookup_allocated
= MAX (0x100,
9755 abbrev_lookup_allocated
* 2);
9756 abbrev_lookup
= xrealloc (abbrev_lookup
,
9757 (abbrev_lookup_allocated
9758 * sizeof (*abbrev_lookup
)));
9760 assert (abbrev_lookup_used
< abbrev_lookup_allocated
);
9761 struct abbrev_lookup_entry
*entry
;
9762 for (entry
= abbrev_lookup
;
9763 entry
< abbrev_lookup
+ abbrev_lookup_used
;
9765 if (entry
->abbrev_tag
== abbrev_tag
)
9767 warn (_("Duplicate abbreviation tag %lu "
9768 "in unit 0x%lx in the debug_names\n"),
9769 (long) abbrev_tag
, (long) (unit_start
- section
->start
));
9772 entry
= &abbrev_lookup
[abbrev_lookup_used
++];
9773 entry
->abbrev_tag
= abbrev_tag
;
9774 entry
->abbrev_lookup_ptr
= abbrevptr
;
9776 /* Skip DWARF tag. */
9777 SKIP_ULEB (abbrevptr
, abbrev_table_end
);
9780 dwarf_vma xindex
, form
;
9782 READ_ULEB (xindex
, abbrevptr
, abbrev_table_end
);
9783 READ_ULEB (form
, abbrevptr
, abbrev_table_end
);
9784 if (xindex
== 0 && form
== 0)
9789 printf (_("\nSymbol table:\n"));
9791 for (namei
= 0; namei
< name_count
; ++namei
)
9793 uint64_t string_offset
, entry_offset
;
9796 p
= name_table_string_offsets
+ namei
* offset_size
;
9797 SAFE_BYTE_GET (string_offset
, p
, offset_size
, unit_end
);
9798 p
= name_table_entry_offsets
+ namei
* offset_size
;
9799 SAFE_BYTE_GET (entry_offset
, p
, offset_size
, unit_end
);
9801 printf ("[%3u] #%08x %s:", namei
, hash_table_hashes
[namei
],
9802 fetch_indirect_string (string_offset
));
9804 unsigned char *entryptr
= entry_pool
+ entry_offset
;
9806 /* We need to scan first whether there is a single or multiple
9807 entries. TAGNO is -2 for the first entry, it is -1 for the
9808 initial tag read of the second entry, then it becomes 0 for the
9809 first entry for real printing etc. */
9811 /* Initialize it due to a false compiler warning. */
9812 dwarf_vma second_abbrev_tag
= -1;
9815 dwarf_vma abbrev_tag
;
9816 dwarf_vma dwarf_tag
;
9817 const struct abbrev_lookup_entry
*entry
;
9819 READ_ULEB (abbrev_tag
, entryptr
, unit_end
);
9822 second_abbrev_tag
= abbrev_tag
;
9824 entryptr
= entry_pool
+ entry_offset
;
9827 if (abbrev_tag
== 0)
9831 (tagno
== 0 && second_abbrev_tag
== 0 ? " " : "\n\t"),
9832 (unsigned long) abbrev_tag
);
9834 for (entry
= abbrev_lookup
;
9835 entry
< abbrev_lookup
+ abbrev_lookup_used
;
9837 if (entry
->abbrev_tag
== abbrev_tag
)
9839 if (entry
>= abbrev_lookup
+ abbrev_lookup_used
)
9841 warn (_("Undefined abbreviation tag %lu "
9842 "in unit 0x%lx in the debug_names\n"),
9844 (long) (unit_start
- section
->start
));
9847 abbrevptr
= entry
->abbrev_lookup_ptr
;
9848 READ_ULEB (dwarf_tag
, abbrevptr
, abbrev_table_end
);
9850 printf (" %s", get_TAG_name (dwarf_tag
));
9853 dwarf_vma xindex
, form
;
9855 READ_ULEB (xindex
, abbrevptr
, abbrev_table_end
);
9856 READ_ULEB (form
, abbrevptr
, abbrev_table_end
);
9857 if (xindex
== 0 && form
== 0)
9861 printf (" %s", get_IDX_name (xindex
));
9862 entryptr
= read_and_display_attr_value (0, form
, 0,
9863 unit_start
, entryptr
, unit_end
,
9865 dwarf_version
, NULL
,
9872 printf (_(" <no entries>"));
9876 free (abbrev_lookup
);
9883 display_debug_links (struct dwarf_section
* section
,
9884 void * file ATTRIBUTE_UNUSED
)
9886 const unsigned char * filename
;
9887 unsigned int filelen
;
9889 introduce (section
, false);
9891 /* The .gnu_debuglink section is formatted as:
9892 (c-string) Filename.
9893 (padding) If needed to reach a 4 byte boundary.
9894 (uint32_t) CRC32 value.
9896 The .gun_debugaltlink section is formatted as:
9897 (c-string) Filename.
9898 (binary) Build-ID. */
9900 filename
= section
->start
;
9901 filelen
= strnlen ((const char *) filename
, section
->size
);
9902 if (filelen
== section
->size
)
9904 warn (_("The debuglink filename is corrupt/missing\n"));
9908 printf (_(" Separate debug info file: %s\n"), filename
);
9910 if (startswith (section
->name
, ".gnu_debuglink"))
9913 unsigned int crc_offset
;
9915 crc_offset
= filelen
+ 1;
9916 crc_offset
= (crc_offset
+ 3) & ~3;
9917 if (crc_offset
+ 4 > section
->size
)
9919 warn (_("CRC offset missing/truncated\n"));
9923 crc32
= byte_get (filename
+ crc_offset
, 4);
9925 printf (_(" CRC value: %#x\n"), crc32
);
9927 if (crc_offset
+ 4 < section
->size
)
9929 warn (_("There are %#lx extraneous bytes at the end of the section\n"),
9930 (long)(section
->size
- (crc_offset
+ 4)));
9934 else /* startswith (section->name, ".gnu_debugaltlink") */
9936 const unsigned char * build_id
= section
->start
+ filelen
+ 1;
9937 bfd_size_type build_id_len
= section
->size
- (filelen
+ 1);
9938 bfd_size_type printed
;
9940 /* FIXME: Should we support smaller build-id notes ? */
9941 if (build_id_len
< 0x14)
9943 warn (_("Build-ID is too short (%#lx bytes)\n"), (long) build_id_len
);
9947 printed
= printf (_(" Build-ID (%#lx bytes):"), (long) build_id_len
);
9948 display_data (printed
, build_id
, build_id_len
);
9957 display_gdb_index (struct dwarf_section
*section
,
9958 void *file ATTRIBUTE_UNUSED
)
9960 unsigned char *start
= section
->start
;
9962 uint32_t cu_list_offset
, tu_list_offset
;
9963 uint32_t address_table_offset
, symbol_table_offset
, constant_pool_offset
;
9964 unsigned int cu_list_elements
, tu_list_elements
;
9965 unsigned int address_table_size
, symbol_table_slots
;
9966 unsigned char *cu_list
, *tu_list
;
9967 unsigned char *address_table
, *symbol_table
, *constant_pool
;
9970 /* The documentation for the format of this file is in gdb/dwarf2read.c. */
9972 introduce (section
, false);
9974 if (section
->size
< 6 * sizeof (uint32_t))
9976 warn (_("Truncated header in the %s section.\n"), section
->name
);
9980 version
= byte_get_little_endian (start
, 4);
9981 printf (_("Version %ld\n"), (long) version
);
9983 /* Prior versions are obsolete, and future versions may not be
9984 backwards compatible. */
9985 if (version
< 3 || version
> 8)
9987 warn (_("Unsupported version %lu.\n"), (unsigned long) version
);
9991 warn (_("The address table data in version 3 may be wrong.\n"));
9993 warn (_("Version 4 does not support case insensitive lookups.\n"));
9995 warn (_("Version 5 does not include inlined functions.\n"));
9997 warn (_("Version 6 does not include symbol attributes.\n"));
9998 /* Version 7 indices generated by Gold have bad type unit references,
9999 PR binutils/15021. But we don't know if the index was generated by
10000 Gold or not, so to avoid worrying users with gdb-generated indices
10001 we say nothing for version 7 here. */
10003 cu_list_offset
= byte_get_little_endian (start
+ 4, 4);
10004 tu_list_offset
= byte_get_little_endian (start
+ 8, 4);
10005 address_table_offset
= byte_get_little_endian (start
+ 12, 4);
10006 symbol_table_offset
= byte_get_little_endian (start
+ 16, 4);
10007 constant_pool_offset
= byte_get_little_endian (start
+ 20, 4);
10009 if (cu_list_offset
> section
->size
10010 || tu_list_offset
> section
->size
10011 || address_table_offset
> section
->size
10012 || symbol_table_offset
> section
->size
10013 || constant_pool_offset
> section
->size
)
10015 warn (_("Corrupt header in the %s section.\n"), section
->name
);
10019 /* PR 17531: file: 418d0a8a. */
10020 if (tu_list_offset
< cu_list_offset
)
10022 warn (_("TU offset (%x) is less than CU offset (%x)\n"),
10023 tu_list_offset
, cu_list_offset
);
10027 cu_list_elements
= (tu_list_offset
- cu_list_offset
) / 8;
10029 if (address_table_offset
< tu_list_offset
)
10031 warn (_("Address table offset (%x) is less than TU offset (%x)\n"),
10032 address_table_offset
, tu_list_offset
);
10036 tu_list_elements
= (address_table_offset
- tu_list_offset
) / 8;
10038 /* PR 17531: file: 18a47d3d. */
10039 if (symbol_table_offset
< address_table_offset
)
10041 warn (_("Symbol table offset (%x) is less then Address table offset (%x)\n"),
10042 symbol_table_offset
, address_table_offset
);
10046 address_table_size
= symbol_table_offset
- address_table_offset
;
10048 if (constant_pool_offset
< symbol_table_offset
)
10050 warn (_("Constant pool offset (%x) is less than symbol table offset (%x)\n"),
10051 constant_pool_offset
, symbol_table_offset
);
10055 symbol_table_slots
= (constant_pool_offset
- symbol_table_offset
) / 8;
10057 cu_list
= start
+ cu_list_offset
;
10058 tu_list
= start
+ tu_list_offset
;
10059 address_table
= start
+ address_table_offset
;
10060 symbol_table
= start
+ symbol_table_offset
;
10061 constant_pool
= start
+ constant_pool_offset
;
10063 if (address_table
+ address_table_size
> section
->start
+ section
->size
)
10065 warn (_("Address table extends beyond end of section.\n"));
10069 printf (_("\nCU table:\n"));
10070 for (i
= 0; i
< cu_list_elements
; i
+= 2)
10072 uint64_t cu_offset
= byte_get_little_endian (cu_list
+ i
* 8, 8);
10073 uint64_t cu_length
= byte_get_little_endian (cu_list
+ i
* 8 + 8, 8);
10075 printf (_("[%3u] 0x%lx - 0x%lx\n"), i
/ 2,
10076 (unsigned long) cu_offset
,
10077 (unsigned long) (cu_offset
+ cu_length
- 1));
10080 printf (_("\nTU table:\n"));
10081 for (i
= 0; i
< tu_list_elements
; i
+= 3)
10083 uint64_t tu_offset
= byte_get_little_endian (tu_list
+ i
* 8, 8);
10084 uint64_t type_offset
= byte_get_little_endian (tu_list
+ i
* 8 + 8, 8);
10085 uint64_t signature
= byte_get_little_endian (tu_list
+ i
* 8 + 16, 8);
10087 printf (_("[%3u] 0x%lx 0x%lx "), i
/ 3,
10088 (unsigned long) tu_offset
,
10089 (unsigned long) type_offset
);
10090 print_dwarf_vma (signature
, 8);
10094 printf (_("\nAddress table:\n"));
10095 for (i
= 0; i
< address_table_size
&& i
<= address_table_size
- (2 * 8 + 4);
10098 uint64_t low
= byte_get_little_endian (address_table
+ i
, 8);
10099 uint64_t high
= byte_get_little_endian (address_table
+ i
+ 8, 8);
10100 uint32_t cu_index
= byte_get_little_endian (address_table
+ i
+ 16, 4);
10102 print_dwarf_vma (low
, 8);
10103 print_dwarf_vma (high
, 8);
10104 printf (_("%lu\n"), (unsigned long) cu_index
);
10107 printf (_("\nSymbol table:\n"));
10108 for (i
= 0; i
< symbol_table_slots
; ++i
)
10110 uint32_t name_offset
= byte_get_little_endian (symbol_table
+ i
* 8, 4);
10111 uint32_t cu_vector_offset
= byte_get_little_endian (symbol_table
+ i
* 8 + 4, 4);
10112 uint32_t num_cus
, cu
;
10114 if (name_offset
!= 0
10115 || cu_vector_offset
!= 0)
10118 unsigned char * adr
;
10120 adr
= constant_pool
+ name_offset
;
10121 /* PR 17531: file: 5b7b07ad. */
10122 if (adr
< constant_pool
|| adr
>= section
->start
+ section
->size
)
10124 printf (_("[%3u] <corrupt offset: %x>"), i
, name_offset
);
10125 warn (_("Corrupt name offset of 0x%x found for symbol table slot %d\n"),
10129 printf ("[%3u] %.*s:", i
,
10130 (int) (section
->size
- (constant_pool_offset
+ name_offset
)),
10131 constant_pool
+ name_offset
);
10133 adr
= constant_pool
+ cu_vector_offset
;
10134 if (adr
< constant_pool
|| adr
>= section
->start
+ section
->size
- 3)
10136 printf (_("<invalid CU vector offset: %x>\n"), cu_vector_offset
);
10137 warn (_("Corrupt CU vector offset of 0x%x found for symbol table slot %d\n"),
10138 cu_vector_offset
, i
);
10142 num_cus
= byte_get_little_endian (adr
, 4);
10144 adr
= constant_pool
+ cu_vector_offset
+ 4 + num_cus
* 4;
10145 if (num_cus
* 4 < num_cus
10146 || adr
>= section
->start
+ section
->size
10147 || adr
< constant_pool
)
10149 printf ("<invalid number of CUs: %d>\n", num_cus
);
10150 warn (_("Invalid number of CUs (0x%x) for symbol table slot %d\n"),
10158 for (j
= 0; j
< num_cus
; ++j
)
10161 gdb_index_symbol_kind kind
;
10163 cu
= byte_get_little_endian (constant_pool
+ cu_vector_offset
+ 4 + j
* 4, 4);
10164 is_static
= GDB_INDEX_SYMBOL_STATIC_VALUE (cu
);
10165 kind
= GDB_INDEX_SYMBOL_KIND_VALUE (cu
);
10166 cu
= GDB_INDEX_CU_VALUE (cu
);
10167 /* Convert to TU number if it's for a type unit. */
10168 if (cu
>= cu_list_elements
/ 2)
10169 printf ("%cT%lu", num_cus
> 1 ? '\t' : ' ',
10170 (unsigned long) (cu
- cu_list_elements
/ 2));
10172 printf ("%c%lu", num_cus
> 1 ? '\t' : ' ', (unsigned long) cu
);
10174 printf (" [%s, %s]",
10175 is_static
? _("static") : _("global"),
10176 get_gdb_index_symbol_kind_name (kind
));
10188 /* Pre-allocate enough space for the CU/TU sets needed. */
10191 prealloc_cu_tu_list (unsigned int nshndx
)
10193 if (shndx_pool
== NULL
)
10195 shndx_pool_size
= nshndx
;
10196 shndx_pool_used
= 0;
10197 shndx_pool
= (unsigned int *) xcmalloc (shndx_pool_size
,
10198 sizeof (unsigned int));
10202 shndx_pool_size
= shndx_pool_used
+ nshndx
;
10203 shndx_pool
= (unsigned int *) xcrealloc (shndx_pool
, shndx_pool_size
,
10204 sizeof (unsigned int));
10209 add_shndx_to_cu_tu_entry (unsigned int shndx
)
10211 if (shndx_pool_used
>= shndx_pool_size
)
10213 error (_("Internal error: out of space in the shndx pool.\n"));
10216 shndx_pool
[shndx_pool_used
++] = shndx
;
10220 end_cu_tu_entry (void)
10222 if (shndx_pool_used
>= shndx_pool_size
)
10224 error (_("Internal error: out of space in the shndx pool.\n"));
10227 shndx_pool
[shndx_pool_used
++] = 0;
10230 /* Return the short name of a DWARF section given by a DW_SECT enumerator. */
10232 static const char *
10233 get_DW_SECT_short_name (unsigned int dw_sect
)
10235 static char buf
[16];
10241 case DW_SECT_TYPES
:
10243 case DW_SECT_ABBREV
:
10249 case DW_SECT_STR_OFFSETS
:
10251 case DW_SECT_MACINFO
:
10253 case DW_SECT_MACRO
:
10259 snprintf (buf
, sizeof (buf
), "%d", dw_sect
);
10263 /* Process a CU or TU index. If DO_DISPLAY is true, print the contents.
10264 These sections are extensions for Fission.
10265 See http://gcc.gnu.org/wiki/DebugFissionDWP. */
10268 process_cu_tu_index (struct dwarf_section
*section
, int do_display
)
10270 unsigned char *phdr
= section
->start
;
10271 unsigned char *limit
= phdr
+ section
->size
;
10272 unsigned char *phash
;
10273 unsigned char *pindex
;
10274 unsigned char *ppool
;
10275 unsigned int version
;
10276 unsigned int ncols
= 0;
10277 unsigned int nused
;
10278 unsigned int nslots
;
10281 dwarf_vma signature
;
10283 /* PR 17512: file: 002-168123-0.004. */
10286 warn (_("Section %s is empty\n"), section
->name
);
10289 /* PR 17512: file: 002-376-0.004. */
10290 if (section
->size
< 24)
10292 warn (_("Section %s is too small to contain a CU/TU header\n"),
10298 SAFE_BYTE_GET_AND_INC (version
, phash
, 4, limit
);
10300 SAFE_BYTE_GET_AND_INC (ncols
, phash
, 4, limit
);
10301 SAFE_BYTE_GET_AND_INC (nused
, phash
, 4, limit
);
10302 SAFE_BYTE_GET_AND_INC (nslots
, phash
, 4, limit
);
10304 pindex
= phash
+ (size_t) nslots
* 8;
10305 ppool
= pindex
+ (size_t) nslots
* 4;
10309 introduce (section
, false);
10311 printf (_(" Version: %u\n"), version
);
10313 printf (_(" Number of columns: %u\n"), ncols
);
10314 printf (_(" Number of used entries: %u\n"), nused
);
10315 printf (_(" Number of slots: %u\n\n"), nslots
);
10318 /* PR 17531: file: 45d69832. */
10319 if ((size_t) nslots
* 8 / 8 != nslots
10320 || phash
< phdr
|| phash
> limit
10321 || pindex
< phash
|| pindex
> limit
10322 || ppool
< pindex
|| ppool
> limit
)
10324 warn (ngettext ("Section %s is too small for %u slot\n",
10325 "Section %s is too small for %u slots\n",
10327 section
->name
, nslots
);
10334 prealloc_cu_tu_list ((limit
- ppool
) / 4);
10335 for (i
= 0; i
< nslots
; i
++)
10337 unsigned char *shndx_list
;
10338 unsigned int shndx
;
10340 SAFE_BYTE_GET (signature
, phash
, 8, limit
);
10341 if (signature
!= 0)
10343 SAFE_BYTE_GET (j
, pindex
, 4, limit
);
10344 shndx_list
= ppool
+ j
* 4;
10345 /* PR 17531: file: 705e010d. */
10346 if (shndx_list
< ppool
)
10348 warn (_("Section index pool located before start of section\n"));
10353 printf (_(" [%3d] Signature: 0x%s Sections: "),
10354 i
, dwarf_vmatoa ("x", signature
));
10357 if (shndx_list
>= limit
)
10359 warn (_("Section %s too small for shndx pool\n"),
10363 SAFE_BYTE_GET (shndx
, shndx_list
, 4, limit
);
10367 printf (" %d", shndx
);
10369 add_shndx_to_cu_tu_entry (shndx
);
10375 end_cu_tu_entry ();
10381 else if (version
== 2)
10384 unsigned int dw_sect
;
10385 unsigned char *ph
= phash
;
10386 unsigned char *pi
= pindex
;
10387 unsigned char *poffsets
= ppool
+ (size_t) ncols
* 4;
10388 unsigned char *psizes
= poffsets
+ (size_t) nused
* ncols
* 4;
10389 unsigned char *pend
= psizes
+ (size_t) nused
* ncols
* 4;
10391 struct cu_tu_set
*this_set
= NULL
;
10393 unsigned char *prow
;
10395 is_tu_index
= strcmp (section
->name
, ".debug_tu_index") == 0;
10397 /* PR 17531: file: 0dd159bf.
10398 Check for integer overflow (can occur when size_t is 32-bit)
10399 with overlarge ncols or nused values. */
10401 && ((size_t) ncols
* 4 / 4 != ncols
10402 || (size_t) nused
* ncols
* 4 / ((size_t) ncols
* 4) != nused
10403 || poffsets
< ppool
|| poffsets
> limit
10404 || psizes
< poffsets
|| psizes
> limit
10405 || pend
< psizes
|| pend
> limit
))
10407 warn (_("Section %s too small for offset and size tables\n"),
10414 printf (_(" Offset table\n"));
10415 printf (" slot %-16s ",
10416 is_tu_index
? _("signature") : _("dwo_id"));
10423 tu_sets
= xcalloc2 (nused
, sizeof (struct cu_tu_set
));
10424 this_set
= tu_sets
;
10429 cu_sets
= xcalloc2 (nused
, sizeof (struct cu_tu_set
));
10430 this_set
= cu_sets
;
10436 for (j
= 0; j
< ncols
; j
++)
10438 unsigned char *p
= ppool
+ j
* 4;
10439 SAFE_BYTE_GET (dw_sect
, p
, 4, limit
);
10440 printf (" %8s", get_DW_SECT_short_name (dw_sect
));
10445 for (i
= 0; i
< nslots
; i
++)
10447 SAFE_BYTE_GET (signature
, ph
, 8, limit
);
10449 SAFE_BYTE_GET (row
, pi
, 4, limit
);
10452 /* PR 17531: file: a05f6ab3. */
10455 warn (_("Row index (%u) is larger than number of used entries (%u)\n"),
10462 size_t num_copy
= sizeof (uint64_t);
10464 /* PR 23064: Beware of buffer overflow. */
10465 if (ph
+ num_copy
< limit
)
10466 memcpy (&this_set
[row
- 1].signature
, ph
, num_copy
);
10469 warn (_("Signature (%p) extends beyond end of space in section\n"), ph
);
10474 prow
= poffsets
+ (row
- 1) * ncols
* 4;
10475 /* PR 17531: file: b8ce60a8. */
10476 if (prow
< poffsets
|| prow
> limit
)
10478 warn (_("Row index (%u) * num columns (%u) > space remaining in section\n"),
10484 printf (_(" [%3d] 0x%s"),
10485 i
, dwarf_vmatoa ("x", signature
));
10486 for (j
= 0; j
< ncols
; j
++)
10488 unsigned char *p
= prow
+ j
* 4;
10489 SAFE_BYTE_GET (val
, p
, 4, limit
);
10491 printf (" %8d", val
);
10495 SAFE_BYTE_GET (dw_sect
, p
, 4, limit
);
10497 /* PR 17531: file: 10796eb3. */
10498 if (dw_sect
>= DW_SECT_MAX
)
10499 warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect
);
10501 this_set
[row
- 1].section_offsets
[dw_sect
] = val
;
10517 printf (_(" Size table\n"));
10518 printf (" slot %-16s ",
10519 is_tu_index
? _("signature") : _("dwo_id"));
10522 for (j
= 0; j
< ncols
; j
++)
10524 unsigned char *p
= ppool
+ j
* 4;
10525 SAFE_BYTE_GET (val
, p
, 4, limit
);
10527 printf (" %8s", get_DW_SECT_short_name (val
));
10533 for (i
= 0; i
< nslots
; i
++)
10535 SAFE_BYTE_GET (signature
, ph
, 8, limit
);
10537 SAFE_BYTE_GET (row
, pi
, 4, limit
);
10540 prow
= psizes
+ (row
- 1) * ncols
* 4;
10543 printf (_(" [%3d] 0x%s"),
10544 i
, dwarf_vmatoa ("x", signature
));
10546 for (j
= 0; j
< ncols
; j
++)
10548 unsigned char *p
= prow
+ j
* 4;
10549 SAFE_BYTE_GET (val
, p
, 4, limit
);
10551 printf (" %8d", val
);
10555 SAFE_BYTE_GET (dw_sect
, p
, 4, limit
);
10556 if (dw_sect
>= DW_SECT_MAX
)
10557 warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect
);
10559 this_set
[row
- 1].section_sizes
[dw_sect
] = val
;
10571 else if (do_display
)
10572 printf (_(" Unsupported version (%d)\n"), version
);
10580 static int cu_tu_indexes_read
= -1; /* Tri-state variable. */
10582 /* Load the CU and TU indexes if present. This will build a list of
10583 section sets that we can use to associate a .debug_info.dwo section
10584 with its associated .debug_abbrev.dwo section in a .dwp file. */
10587 load_cu_tu_indexes (void *file
)
10589 /* If we have already loaded (or tried to load) the CU and TU indexes
10590 then do not bother to repeat the task. */
10591 if (cu_tu_indexes_read
== -1)
10593 cu_tu_indexes_read
= true;
10595 if (load_debug_section_with_follow (dwp_cu_index
, file
))
10596 if (! process_cu_tu_index (&debug_displays
[dwp_cu_index
].section
, 0))
10597 cu_tu_indexes_read
= false;
10599 if (load_debug_section_with_follow (dwp_tu_index
, file
))
10600 if (! process_cu_tu_index (&debug_displays
[dwp_tu_index
].section
, 0))
10601 cu_tu_indexes_read
= false;
10604 return (bool) cu_tu_indexes_read
;
10607 /* Find the set of sections that includes section SHNDX. */
10610 find_cu_tu_set (void *file
, unsigned int shndx
)
10614 if (! load_cu_tu_indexes (file
))
10617 /* Find SHNDX in the shndx pool. */
10618 for (i
= 0; i
< shndx_pool_used
; i
++)
10619 if (shndx_pool
[i
] == shndx
)
10622 if (i
>= shndx_pool_used
)
10625 /* Now backup to find the first entry in the set. */
10626 while (i
> 0 && shndx_pool
[i
- 1] != 0)
10629 return shndx_pool
+ i
;
10632 /* Display a .debug_cu_index or .debug_tu_index section. */
10635 display_cu_index (struct dwarf_section
*section
, void *file ATTRIBUTE_UNUSED
)
10637 return process_cu_tu_index (section
, 1);
10641 display_debug_not_supported (struct dwarf_section
*section
,
10642 void *file ATTRIBUTE_UNUSED
)
10644 printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
10650 /* Like malloc, but takes two parameters like calloc.
10651 Verifies that the first parameter is not too large.
10652 Note: does *not* initialise the allocated memory to zero. */
10655 cmalloc (size_t nmemb
, size_t size
)
10657 /* Check for overflow. */
10658 if (nmemb
>= ~(size_t) 0 / size
)
10661 return xmalloc (nmemb
* size
);
10664 /* Like xmalloc, but takes two parameters like calloc.
10665 Verifies that the first parameter is not too large.
10666 Note: does *not* initialise the allocated memory to zero. */
10669 xcmalloc (size_t nmemb
, size_t size
)
10671 /* Check for overflow. */
10672 if (nmemb
>= ~(size_t) 0 / size
)
10675 _("Attempt to allocate an array with an excessive number of elements: 0x%lx\n"),
10680 return xmalloc (nmemb
* size
);
10683 /* Like xrealloc, but takes three parameters.
10684 Verifies that the second parameter is not too large.
10685 Note: does *not* initialise any new memory to zero. */
10688 xcrealloc (void *ptr
, size_t nmemb
, size_t size
)
10690 /* Check for overflow. */
10691 if (nmemb
>= ~(size_t) 0 / size
)
10693 error (_("Attempt to re-allocate an array with an excessive number of elements: 0x%lx\n"),
10698 return xrealloc (ptr
, nmemb
* size
);
10701 /* Like xcalloc, but verifies that the first parameter is not too large. */
10704 xcalloc2 (size_t nmemb
, size_t size
)
10706 /* Check for overflow. */
10707 if (nmemb
>= ~(size_t) 0 / size
)
10709 error (_("Attempt to allocate a zero'ed array with an excessive number of elements: 0x%lx\n"),
10714 return xcalloc (nmemb
, size
);
10717 static unsigned long
10718 calc_gnu_debuglink_crc32 (unsigned long crc
,
10719 const unsigned char * buf
,
10722 static const unsigned long crc32_table
[256] =
10724 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
10725 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
10726 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
10727 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
10728 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
10729 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
10730 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
10731 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
10732 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
10733 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
10734 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
10735 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
10736 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
10737 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
10738 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
10739 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
10740 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
10741 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
10742 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
10743 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
10744 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
10745 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
10746 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
10747 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
10748 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
10749 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
10750 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
10751 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
10752 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
10753 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
10754 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
10755 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
10756 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
10757 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
10758 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
10759 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
10760 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
10761 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
10762 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
10763 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
10764 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
10765 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
10766 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
10767 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
10768 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
10769 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
10770 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
10771 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
10772 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
10773 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
10774 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
10777 const unsigned char *end
;
10779 crc
= ~crc
& 0xffffffff;
10780 for (end
= buf
+ len
; buf
< end
; ++ buf
)
10781 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
10782 return ~crc
& 0xffffffff;
10785 typedef bool (*check_func_type
) (const char *, void *);
10786 typedef const char *(* parse_func_type
) (struct dwarf_section
*, void *);
10789 check_gnu_debuglink (const char * pathname
, void * crc_pointer
)
10791 static unsigned char buffer
[8 * 1024];
10793 bfd_size_type count
;
10794 unsigned long crc
= 0;
10797 sep_data
= open_debug_file (pathname
);
10798 if (sep_data
== NULL
)
10801 /* Yes - we are opening the file twice... */
10802 f
= fopen (pathname
, "rb");
10805 /* Paranoia: This should never happen. */
10806 close_debug_file (sep_data
);
10807 warn (_("Unable to reopen separate debug info file: %s\n"), pathname
);
10811 while ((count
= fread (buffer
, 1, sizeof (buffer
), f
)) > 0)
10812 crc
= calc_gnu_debuglink_crc32 (crc
, buffer
, count
);
10816 if (crc
!= * (unsigned long *) crc_pointer
)
10818 close_debug_file (sep_data
);
10819 warn (_("Separate debug info file %s found, but CRC does not match - ignoring\n"),
10827 static const char *
10828 parse_gnu_debuglink (struct dwarf_section
* section
, void * data
)
10831 unsigned int crc_offset
;
10832 unsigned long * crc32
= (unsigned long *) data
;
10834 /* The name is first.
10835 The CRC value is stored after the filename, aligned up to 4 bytes. */
10836 name
= (const char *) section
->start
;
10838 crc_offset
= strnlen (name
, section
->size
) + 1;
10839 if (crc_offset
== 1)
10841 crc_offset
= (crc_offset
+ 3) & ~3;
10842 if (crc_offset
+ 4 > section
->size
)
10845 * crc32
= byte_get (section
->start
+ crc_offset
, 4);
10850 check_gnu_debugaltlink (const char * filename
, void * data ATTRIBUTE_UNUSED
)
10852 void * sep_data
= open_debug_file (filename
);
10854 if (sep_data
== NULL
)
10857 /* FIXME: We should now extract the build-id in the separate file
10863 typedef struct build_id_data
10866 const unsigned char * data
;
10869 static const char *
10870 parse_gnu_debugaltlink (struct dwarf_section
* section
, void * data
)
10873 bfd_size_type namelen
;
10874 bfd_size_type id_len
;
10875 Build_id_data
* build_id_data
;
10877 /* The name is first.
10878 The build-id follows immediately, with no padding, up to the section's end. */
10880 name
= (const char *) section
->start
;
10881 namelen
= strnlen (name
, section
->size
) + 1;
10884 if (namelen
>= section
->size
)
10887 id_len
= section
->size
- namelen
;
10891 build_id_data
= (Build_id_data
*) data
;
10892 build_id_data
->len
= id_len
;
10893 build_id_data
->data
= section
->start
+ namelen
;
10899 add_separate_debug_file (const char * filename
, void * handle
)
10901 separate_info
* i
= xmalloc (sizeof * i
);
10903 i
->filename
= filename
;
10904 i
->handle
= handle
;
10905 i
->next
= first_separate_info
;
10906 first_separate_info
= i
;
10909 #if HAVE_LIBDEBUGINFOD
10910 /* Query debuginfod servers for the target debuglink or debugaltlink
10911 file. If successful, store the path of the file in filename and
10912 return TRUE, otherwise return FALSE. */
10915 debuginfod_fetch_separate_debug_info (struct dwarf_section
* section
,
10919 size_t build_id_len
;
10920 unsigned char * build_id
;
10922 if (strcmp (section
->uncompressed_name
, ".gnu_debuglink") == 0)
10924 /* Get the build-id of file. */
10925 build_id
= get_build_id (file
);
10928 else if (strcmp (section
->uncompressed_name
, ".gnu_debugaltlink") == 0)
10930 /* Get the build-id of the debugaltlink file. */
10931 unsigned int filelen
;
10933 filelen
= strnlen ((const char *)section
->start
, section
->size
);
10934 if (filelen
== section
->size
)
10935 /* Corrupt debugaltlink. */
10938 build_id
= section
->start
+ filelen
+ 1;
10939 build_id_len
= section
->size
- (filelen
+ 1);
10941 if (build_id_len
== 0)
10950 debuginfod_client
* client
;
10952 client
= debuginfod_begin ();
10953 if (client
== NULL
)
10956 /* Query debuginfod servers for the target file. If found its path
10957 will be stored in filename. */
10958 fd
= debuginfod_find_debuginfo (client
, build_id
, build_id_len
, filename
);
10959 debuginfod_end (client
);
10961 /* Only free build_id if we allocated space for a hex string
10962 in get_build_id (). */
10963 if (build_id_len
== 0)
10968 /* File successfully retrieved. Close fd since we want to
10969 use open_debug_file () on filename instead. */
10980 load_separate_debug_info (const char * main_filename
,
10981 struct dwarf_section
* xlink
,
10982 parse_func_type parse_func
,
10983 check_func_type check_func
,
10985 void * file ATTRIBUTE_UNUSED
)
10987 const char * separate_filename
;
10988 char * debug_filename
;
10990 size_t canon_dirlen
;
10993 if ((separate_filename
= parse_func (xlink
, func_data
)) == NULL
)
10995 warn (_("Corrupt debuglink section: %s\n"),
10996 xlink
->name
? xlink
->name
: xlink
->uncompressed_name
);
11000 /* Attempt to locate the separate file.
11001 This should duplicate the logic in bfd/opncls.c:find_separate_debug_file(). */
11003 canon_dir
= lrealpath (main_filename
);
11005 for (canon_dirlen
= strlen (canon_dir
); canon_dirlen
> 0; canon_dirlen
--)
11006 if (IS_DIR_SEPARATOR (canon_dir
[canon_dirlen
- 1]))
11008 canon_dir
[canon_dirlen
] = '\0';
11011 #define DEBUGDIR "/lib/debug"
11013 #ifndef EXTRA_DEBUG_ROOT1
11014 #define EXTRA_DEBUG_ROOT1 "/usr/lib/debug"
11016 #ifndef EXTRA_DEBUG_ROOT2
11017 #define EXTRA_DEBUG_ROOT2 "/usr/lib/debug/usr"
11020 debug_filename
= (char *) malloc (strlen (DEBUGDIR
) + 1
11022 + strlen (".debug/")
11023 #ifdef EXTRA_DEBUG_ROOT1
11024 + strlen (EXTRA_DEBUG_ROOT1
)
11026 #ifdef EXTRA_DEBUG_ROOT2
11027 + strlen (EXTRA_DEBUG_ROOT2
)
11029 + strlen (separate_filename
)
11031 if (debug_filename
== NULL
)
11033 warn (_("Out of memory"));
11038 /* First try in the current directory. */
11039 sprintf (debug_filename
, "%s", separate_filename
);
11040 if (check_func (debug_filename
, func_data
))
11043 /* Then try in a subdirectory called .debug. */
11044 sprintf (debug_filename
, ".debug/%s", separate_filename
);
11045 if (check_func (debug_filename
, func_data
))
11048 /* Then try in the same directory as the original file. */
11049 sprintf (debug_filename
, "%s%s", canon_dir
, separate_filename
);
11050 if (check_func (debug_filename
, func_data
))
11053 /* And the .debug subdirectory of that directory. */
11054 sprintf (debug_filename
, "%s.debug/%s", canon_dir
, separate_filename
);
11055 if (check_func (debug_filename
, func_data
))
11058 #ifdef EXTRA_DEBUG_ROOT1
11059 /* Try the first extra debug file root. */
11060 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT1
, separate_filename
);
11061 if (check_func (debug_filename
, func_data
))
11064 /* Try the first extra debug file root. */
11065 sprintf (debug_filename
, "%s/%s/%s", EXTRA_DEBUG_ROOT1
, canon_dir
, separate_filename
);
11066 if (check_func (debug_filename
, func_data
))
11070 #ifdef EXTRA_DEBUG_ROOT2
11071 /* Try the second extra debug file root. */
11072 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT2
, separate_filename
);
11073 if (check_func (debug_filename
, func_data
))
11077 /* Then try in the global debug_filename directory. */
11078 strcpy (debug_filename
, DEBUGDIR
);
11079 dirlen
= strlen (DEBUGDIR
) - 1;
11080 if (dirlen
> 0 && DEBUGDIR
[dirlen
] != '/')
11081 strcat (debug_filename
, "/");
11082 strcat (debug_filename
, (const char *) separate_filename
);
11084 if (check_func (debug_filename
, func_data
))
11087 #if HAVE_LIBDEBUGINFOD
11089 char * tmp_filename
;
11091 if (debuginfod_fetch_separate_debug_info (xlink
,
11095 /* File successfully downloaded from server, replace
11096 debug_filename with the file's path. */
11097 free (debug_filename
);
11098 debug_filename
= tmp_filename
;
11104 if (do_debug_links
)
11106 /* Failed to find the file. */
11107 warn (_("could not find separate debug file '%s'\n"),
11108 separate_filename
);
11109 warn (_("tried: %s\n"), debug_filename
);
11111 #ifdef EXTRA_DEBUG_ROOT2
11112 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT2
,
11113 separate_filename
);
11114 warn (_("tried: %s\n"), debug_filename
);
11117 #ifdef EXTRA_DEBUG_ROOT1
11118 sprintf (debug_filename
, "%s/%s/%s", EXTRA_DEBUG_ROOT1
,
11119 canon_dir
, separate_filename
);
11120 warn (_("tried: %s\n"), debug_filename
);
11122 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT1
,
11123 separate_filename
);
11124 warn (_("tried: %s\n"), debug_filename
);
11127 sprintf (debug_filename
, "%s.debug/%s", canon_dir
,
11128 separate_filename
);
11129 warn (_("tried: %s\n"), debug_filename
);
11131 sprintf (debug_filename
, "%s%s", canon_dir
, separate_filename
);
11132 warn (_("tried: %s\n"), debug_filename
);
11134 sprintf (debug_filename
, ".debug/%s", separate_filename
);
11135 warn (_("tried: %s\n"), debug_filename
);
11137 sprintf (debug_filename
, "%s", separate_filename
);
11138 warn (_("tried: %s\n"), debug_filename
);
11140 #if HAVE_LIBDEBUGINFOD
11142 char *urls
= getenv (DEBUGINFOD_URLS_ENV_VAR
);
11146 warn (_("tried: DEBUGINFOD_URLS=%s\n"), urls
);
11152 free (debug_filename
);
11158 void * debug_handle
;
11160 /* Now open the file.... */
11161 if ((debug_handle
= open_debug_file (debug_filename
)) == NULL
)
11163 warn (_("failed to open separate debug file: %s\n"), debug_filename
);
11164 free (debug_filename
);
11168 /* FIXME: We do not check to see if there are any other separate debug info
11169 files that would also match. */
11171 if (do_debug_links
)
11172 printf (_("\n%s: Found separate debug info file: %s\n"), main_filename
, debug_filename
);
11173 add_separate_debug_file (debug_filename
, debug_handle
);
11175 /* Do not free debug_filename - it might be referenced inside
11176 the structure returned by open_debug_file(). */
11177 return debug_handle
;
11180 /* Attempt to load a separate dwarf object file. */
11183 load_dwo_file (const char * main_filename
, const char * name
, const char * dir
, const char * id ATTRIBUTE_UNUSED
)
11185 char * separate_filename
;
11186 void * separate_handle
;
11188 if (IS_ABSOLUTE_PATH (name
))
11189 separate_filename
= strdup (name
);
11191 /* FIXME: Skip adding / if dwo_dir ends in /. */
11192 separate_filename
= concat (dir
, "/", name
, NULL
);
11193 if (separate_filename
== NULL
)
11195 warn (_("Out of memory allocating dwo filename\n"));
11199 if ((separate_handle
= open_debug_file (separate_filename
)) == NULL
)
11201 warn (_("Unable to load dwo file: %s\n"), separate_filename
);
11202 free (separate_filename
);
11206 /* FIXME: We should check the dwo_id. */
11208 printf (_("%s: Found separate debug object file: %s\n\n"), main_filename
, separate_filename
);
11210 add_separate_debug_file (separate_filename
, separate_handle
);
11211 /* Note - separate_filename will be freed in free_debug_memory(). */
11212 return separate_handle
;
11216 load_debug_sup_file (const char * main_filename
, void * file
)
11218 if (! load_debug_section (debug_sup
, file
))
11219 return; /* No .debug_sup section. */
11221 struct dwarf_section
* section
;
11222 section
= & debug_displays
[debug_sup
].section
;
11223 assert (section
!= NULL
);
11225 if (section
->start
== NULL
|| section
->size
< 5)
11227 warn (_(".debug_sup section is corrupt/empty\n"));
11231 if (section
->start
[2] != 0)
11232 return; /* This is a supplementary file. */
11234 const char * filename
= (const char *) section
->start
+ 3;
11235 if (strnlen (filename
, section
->size
- 3) == section
->size
- 3)
11237 warn (_("filename in .debug_sup section is corrupt\n"));
11241 if (filename
[0] != '/' && strchr (main_filename
, '/'))
11246 new_len
= asprintf (& new_name
, "%.*s/%s",
11247 (int) (strrchr (main_filename
, '/') - main_filename
),
11252 warn (_("unable to construct path for supplementary debug file"));
11257 filename
= new_name
;
11261 /* PR 27796: Make sure that we pass a filename that can be free'd to
11262 add_separate_debug_file(). */
11263 filename
= strdup (filename
);
11264 if (filename
== NULL
)
11266 warn (_("out of memory constructing filename for .debug_sup link\n"));
11271 void * handle
= open_debug_file (filename
);
11272 if (handle
== NULL
)
11274 warn (_("unable to open file '%s' referenced from .debug_sup section\n"), filename
);
11275 free ((void *) filename
);
11279 printf (_("%s: Found supplementary debug file: %s\n\n"), main_filename
, filename
);
11281 /* FIXME: Compare the checksums, if present. */
11282 add_separate_debug_file (filename
, handle
);
11285 /* Load a debuglink section and/or a debugaltlink section, if either are present.
11286 Recursively check the loaded files for more of these sections.
11287 Also follow any links in .debug_sup sections.
11288 FIXME: Should also check for DWO_* entries in the newly loaded files. */
11291 check_for_and_load_links (void * file
, const char * filename
)
11293 void * handle
= NULL
;
11295 if (load_debug_section (gnu_debugaltlink
, file
))
11297 Build_id_data build_id_data
;
11299 handle
= load_separate_debug_info (filename
,
11300 & debug_displays
[gnu_debugaltlink
].section
,
11301 parse_gnu_debugaltlink
,
11302 check_gnu_debugaltlink
,
11307 assert (handle
== first_separate_info
->handle
);
11308 check_for_and_load_links (first_separate_info
->handle
,
11309 first_separate_info
->filename
);
11313 if (load_debug_section (gnu_debuglink
, file
))
11315 unsigned long crc32
;
11317 handle
= load_separate_debug_info (filename
,
11318 & debug_displays
[gnu_debuglink
].section
,
11319 parse_gnu_debuglink
,
11320 check_gnu_debuglink
,
11325 assert (handle
== first_separate_info
->handle
);
11326 check_for_and_load_links (first_separate_info
->handle
,
11327 first_separate_info
->filename
);
11331 load_debug_sup_file (filename
, file
);
11334 /* Load the separate debug info file(s) attached to FILE, if any exist.
11335 Returns TRUE if any were found, FALSE otherwise.
11336 If TRUE is returned then the linked list starting at first_separate_info
11337 will be populated with open file handles. */
11340 load_separate_debug_files (void * file
, const char * filename
)
11342 /* Skip this operation if we are not interested in debug links. */
11343 if (! do_follow_links
&& ! do_debug_links
)
11346 /* See if there are any dwo links. */
11347 if (load_debug_section (str
, file
)
11348 && load_debug_section (abbrev
, file
)
11349 && load_debug_section (info
, file
))
11353 if (process_debug_info (& debug_displays
[info
].section
, file
, abbrev
,
11356 bool introduced
= false;
11358 const char *dir
= NULL
;
11359 const char *id
= NULL
;
11360 const char *name
= NULL
;
11362 for (dwinfo
= first_dwo_info
; dwinfo
!= NULL
; dwinfo
= dwinfo
->next
)
11364 /* Accumulate NAME, DIR and ID fields. */
11365 switch (dwinfo
->type
)
11369 warn (_("Multiple DWO_NAMEs encountered for the same CU\n"));
11370 name
= dwinfo
->value
;
11374 /* There can be multiple DW_AT_comp_dir entries in a CU,
11375 so do not complain. */
11376 dir
= dwinfo
->value
;
11381 warn (_("multiple DWO_IDs encountered for the same CU\n"));
11382 id
= dwinfo
->value
;
11386 error (_("Unexpected DWO INFO type"));
11390 /* If we have reached the end of our list, or we are changing
11391 CUs, then display the information that we have accumulated
11394 && (dwinfo
->next
== NULL
11395 || dwinfo
->next
->cu_offset
!= dwinfo
->cu_offset
))
11397 if (do_debug_links
)
11401 printf (_("The %s section contains link(s) to dwo file(s):\n\n"),
11402 debug_displays
[info
].section
.uncompressed_name
);
11406 printf (_(" Name: %s\n"), name
);
11407 printf (_(" Directory: %s\n"), dir
? dir
: _("<not-found>"));
11409 display_data (printf (_(" ID: ")), (unsigned char *) id
, 8);
11411 printf (_(" ID: <not specified>\n"));
11415 if (do_follow_links
)
11416 load_dwo_file (filename
, name
, dir
, id
);
11418 name
= dir
= id
= NULL
;
11424 if (! do_follow_links
)
11425 /* The other debug links will be displayed by display_debug_links()
11426 so we do not need to do any further processing here. */
11429 /* FIXME: We do not check for the presence of both link sections in the same file. */
11430 /* FIXME: We do not check for the presence of multiple, same-name debuglink sections. */
11431 /* FIXME: We do not check for the presence of a dwo link as well as a debuglink. */
11433 check_for_and_load_links (file
, filename
);
11434 if (first_separate_info
!= NULL
)
11437 do_follow_links
= 0;
11442 free_debug_memory (void)
11446 free_all_abbrevs ();
11448 free (cu_abbrev_map
);
11449 cu_abbrev_map
= NULL
;
11450 next_free_abbrev_map_entry
= 0;
11454 shndx_pool_size
= 0;
11455 shndx_pool_used
= 0;
11463 memset (level_type_signed
, 0, sizeof level_type_signed
);
11464 cu_tu_indexes_read
= -1;
11466 for (i
= 0; i
< max
; i
++)
11467 free_debug_section ((enum dwarf_section_display_enum
) i
);
11469 if (debug_information
!= NULL
)
11471 for (i
= 0; i
< alloc_num_debug_info_entries
; i
++)
11473 if (debug_information
[i
].max_loc_offsets
)
11475 free (debug_information
[i
].loc_offsets
);
11476 free (debug_information
[i
].have_frame_base
);
11478 if (debug_information
[i
].max_range_lists
)
11479 free (debug_information
[i
].range_lists
);
11481 free (debug_information
);
11482 debug_information
= NULL
;
11483 alloc_num_debug_info_entries
= num_debug_info_entries
= 0;
11487 separate_info
* next
;
11489 for (d
= first_separate_info
; d
!= NULL
; d
= next
)
11491 close_debug_file (d
->handle
);
11492 free ((void *) d
->filename
);
11496 first_separate_info
= NULL
;
11502 dwarf_select_sections_by_names (const char *names
)
11506 const char * option
;
11510 debug_dump_long_opts
;
11512 static const debug_dump_long_opts opts_table
[] =
11514 /* Please keep this table alpha- sorted. */
11515 { "Ranges", & do_debug_ranges
, 1 },
11516 { "abbrev", & do_debug_abbrevs
, 1 },
11517 { "addr", & do_debug_addr
, 1 },
11518 { "aranges", & do_debug_aranges
, 1 },
11519 { "cu_index", & do_debug_cu_index
, 1 },
11520 { "decodedline", & do_debug_lines
, FLAG_DEBUG_LINES_DECODED
},
11521 { "follow-links", & do_follow_links
, 1 },
11522 { "frames", & do_debug_frames
, 1 },
11523 { "frames-interp", & do_debug_frames_interp
, 1 },
11524 /* The special .gdb_index section. */
11525 { "gdb_index", & do_gdb_index
, 1 },
11526 { "info", & do_debug_info
, 1 },
11527 { "line", & do_debug_lines
, FLAG_DEBUG_LINES_RAW
}, /* For backwards compatibility. */
11528 { "links", & do_debug_links
, 1 },
11529 { "loc", & do_debug_loc
, 1 },
11530 { "macro", & do_debug_macinfo
, 1 },
11531 { "no-follow-links", & do_follow_links
, 0 },
11532 { "pubnames", & do_debug_pubnames
, 1 },
11533 { "pubtypes", & do_debug_pubtypes
, 1 },
11534 /* This entry is for compatibility
11535 with earlier versions of readelf. */
11536 { "ranges", & do_debug_aranges
, 1 },
11537 { "rawline", & do_debug_lines
, FLAG_DEBUG_LINES_RAW
},
11538 { "str", & do_debug_str
, 1 },
11539 { "str-offsets", & do_debug_str_offsets
, 1 },
11540 /* These trace_* sections are used by Itanium VMS. */
11541 { "trace_abbrev", & do_trace_abbrevs
, 1 },
11542 { "trace_aranges", & do_trace_aranges
, 1 },
11543 { "trace_info", & do_trace_info
, 1 },
11552 const debug_dump_long_opts
* entry
;
11554 for (entry
= opts_table
; entry
->option
; entry
++)
11556 size_t len
= strlen (entry
->option
);
11558 if (strncmp (p
, entry
->option
, len
) == 0
11559 && (p
[len
] == ',' || p
[len
] == '\0'))
11561 * entry
->variable
= entry
->val
;
11563 /* The --debug-dump=frames-interp option also
11564 enables the --debug-dump=frames option. */
11565 if (do_debug_frames_interp
)
11566 do_debug_frames
= 1;
11573 if (entry
->option
== NULL
)
11575 warn (_("Unrecognized debug option '%s'\n"), p
);
11576 p
= strchr (p
, ',');
11587 dwarf_select_sections_by_letters (const char *letters
)
11589 unsigned int lindex
= 0;
11591 while (letters
[lindex
])
11592 switch (letters
[lindex
++])
11594 case 'A': do_debug_addr
= 1; break;
11595 case 'a': do_debug_abbrevs
= 1; break;
11596 case 'c': do_debug_cu_index
= 1; break;
11597 case 'F': do_debug_frames_interp
= 1; /* Fall through. */
11598 case 'f': do_debug_frames
= 1; break;
11599 case 'g': do_gdb_index
= 1; break;
11600 case 'i': do_debug_info
= 1; break;
11601 case 'K': do_follow_links
= 1; break;
11602 case 'N': do_follow_links
= 0; break;
11603 case 'k': do_debug_links
= 1; break;
11604 case 'l': do_debug_lines
|= FLAG_DEBUG_LINES_RAW
; break;
11605 case 'L': do_debug_lines
|= FLAG_DEBUG_LINES_DECODED
; break;
11606 case 'm': do_debug_macinfo
= 1; break;
11607 case 'O': do_debug_str_offsets
= 1; break;
11608 case 'o': do_debug_loc
= 1; break;
11609 case 'p': do_debug_pubnames
= 1; break;
11610 case 'R': do_debug_ranges
= 1; break;
11611 case 'r': do_debug_aranges
= 1; break;
11612 case 's': do_debug_str
= 1; break;
11613 case 'T': do_trace_aranges
= 1; break;
11614 case 't': do_debug_pubtypes
= 1; break;
11615 case 'U': do_trace_info
= 1; break;
11616 case 'u': do_trace_abbrevs
= 1; break;
11619 warn (_("Unrecognized debug option '%s'\n"), letters
);
11625 dwarf_select_sections_all (void)
11628 do_debug_abbrevs
= 1;
11629 do_debug_lines
= FLAG_DEBUG_LINES_RAW
;
11630 do_debug_pubnames
= 1;
11631 do_debug_pubtypes
= 1;
11632 do_debug_aranges
= 1;
11633 do_debug_ranges
= 1;
11634 do_debug_frames
= 1;
11635 do_debug_macinfo
= 1;
11640 do_trace_abbrevs
= 1;
11641 do_trace_aranges
= 1;
11643 do_debug_cu_index
= 1;
11644 do_follow_links
= 1;
11645 do_debug_links
= 1;
11646 do_debug_str_offsets
= 1;
11649 #define NO_ABBREVS NULL, NULL, NULL, 0, 0, 0, NULL, 0
11650 #define ABBREV(N) NULL, NULL, NULL, 0, 0, N, NULL, 0
11652 /* N.B. The order here must match the order in section_display_enum. */
11654 struct dwarf_section_display debug_displays
[] =
11656 { { ".debug_abbrev", ".zdebug_abbrev", NO_ABBREVS
}, display_debug_abbrev
, &do_debug_abbrevs
, false },
11657 { { ".debug_aranges", ".zdebug_aranges", NO_ABBREVS
}, display_debug_aranges
, &do_debug_aranges
, true },
11658 { { ".debug_frame", ".zdebug_frame", NO_ABBREVS
}, display_debug_frames
, &do_debug_frames
, true },
11659 { { ".debug_info", ".zdebug_info", ABBREV (abbrev
)}, display_debug_info
, &do_debug_info
, true },
11660 { { ".debug_line", ".zdebug_line", NO_ABBREVS
}, display_debug_lines
, &do_debug_lines
, true },
11661 { { ".debug_pubnames", ".zdebug_pubnames", NO_ABBREVS
}, display_debug_pubnames
, &do_debug_pubnames
, false },
11662 { { ".debug_gnu_pubnames", ".zdebug_gnu_pubnames", NO_ABBREVS
}, display_debug_gnu_pubnames
, &do_debug_pubnames
, false },
11663 { { ".eh_frame", "", NO_ABBREVS
}, display_debug_frames
, &do_debug_frames
, true },
11664 { { ".debug_macinfo", ".zdebug_macinfo", NO_ABBREVS
}, display_debug_macinfo
, &do_debug_macinfo
, false },
11665 { { ".debug_macro", ".zdebug_macro", NO_ABBREVS
}, display_debug_macro
, &do_debug_macinfo
, true },
11666 { { ".debug_str", ".zdebug_str", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, false },
11667 { { ".debug_line_str", ".zdebug_line_str", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, false },
11668 { { ".debug_loc", ".zdebug_loc", NO_ABBREVS
}, display_debug_loc
, &do_debug_loc
, true },
11669 { { ".debug_loclists", ".zdebug_loclists", NO_ABBREVS
}, display_debug_loc
, &do_debug_loc
, true },
11670 { { ".debug_pubtypes", ".zdebug_pubtypes", NO_ABBREVS
}, display_debug_pubnames
, &do_debug_pubtypes
, false },
11671 { { ".debug_gnu_pubtypes", ".zdebug_gnu_pubtypes", NO_ABBREVS
}, display_debug_gnu_pubnames
, &do_debug_pubtypes
, false },
11672 { { ".debug_ranges", ".zdebug_ranges", NO_ABBREVS
}, display_debug_ranges
, &do_debug_ranges
, true },
11673 { { ".debug_rnglists", ".zdebug_rnglists", NO_ABBREVS
}, display_debug_ranges
, &do_debug_ranges
, true },
11674 { { ".debug_static_func", ".zdebug_static_func", NO_ABBREVS
}, display_debug_not_supported
, NULL
, false },
11675 { { ".debug_static_vars", ".zdebug_static_vars", NO_ABBREVS
}, display_debug_not_supported
, NULL
, false },
11676 { { ".debug_types", ".zdebug_types", ABBREV (abbrev
) }, display_debug_types
, &do_debug_info
, true },
11677 { { ".debug_weaknames", ".zdebug_weaknames", NO_ABBREVS
}, display_debug_not_supported
, NULL
, false },
11678 { { ".gdb_index", "", NO_ABBREVS
}, display_gdb_index
, &do_gdb_index
, false },
11679 { { ".debug_names", "", NO_ABBREVS
}, display_debug_names
, &do_gdb_index
, false },
11680 { { ".trace_info", "", ABBREV (trace_abbrev
) }, display_trace_info
, &do_trace_info
, true },
11681 { { ".trace_abbrev", "", NO_ABBREVS
}, display_debug_abbrev
, &do_trace_abbrevs
, false },
11682 { { ".trace_aranges", "", NO_ABBREVS
}, display_debug_aranges
, &do_trace_aranges
, false },
11683 { { ".debug_info.dwo", ".zdebug_info.dwo", ABBREV (abbrev_dwo
) }, display_debug_info
, &do_debug_info
, true },
11684 { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NO_ABBREVS
}, display_debug_abbrev
, &do_debug_abbrevs
, false },
11685 { { ".debug_types.dwo", ".zdebug_types.dwo", ABBREV (abbrev_dwo
) }, display_debug_types
, &do_debug_info
, true },
11686 { { ".debug_line.dwo", ".zdebug_line.dwo", NO_ABBREVS
}, display_debug_lines
, &do_debug_lines
, true },
11687 { { ".debug_loc.dwo", ".zdebug_loc.dwo", NO_ABBREVS
}, display_debug_loc
, &do_debug_loc
, true },
11688 { { ".debug_macro.dwo", ".zdebug_macro.dwo", NO_ABBREVS
}, display_debug_macro
, &do_debug_macinfo
, true },
11689 { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NO_ABBREVS
}, display_debug_macinfo
, &do_debug_macinfo
, false },
11690 { { ".debug_str.dwo", ".zdebug_str.dwo", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, true },
11691 { { ".debug_str_offsets", ".zdebug_str_offsets", NO_ABBREVS
}, display_debug_str_offsets
, &do_debug_str_offsets
, true },
11692 { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NO_ABBREVS
}, display_debug_str_offsets
, &do_debug_str_offsets
, true },
11693 { { ".debug_addr", ".zdebug_addr", NO_ABBREVS
}, display_debug_addr
, &do_debug_addr
, true },
11694 { { ".debug_cu_index", "", NO_ABBREVS
}, display_cu_index
, &do_debug_cu_index
, false },
11695 { { ".debug_tu_index", "", NO_ABBREVS
}, display_cu_index
, &do_debug_cu_index
, false },
11696 { { ".gnu_debuglink", "", NO_ABBREVS
}, display_debug_links
, &do_debug_links
, false },
11697 { { ".gnu_debugaltlink", "", NO_ABBREVS
}, display_debug_links
, &do_debug_links
, false },
11698 { { ".debug_sup", "", NO_ABBREVS
}, display_debug_sup
, &do_debug_links
, false },
11699 /* Separate debug info files can containt their own .debug_str section,
11700 and this might be in *addition* to a .debug_str section already present
11701 in the main file. Hence we need to have two entries for .debug_str. */
11702 { { ".debug_str", ".zdebug_str", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, false },
11705 /* A static assertion. */
11706 extern int debug_displays_assert
[ARRAY_SIZE (debug_displays
) == max
? 1 : -1];