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
);
5784 printf (_(" DW_MACINFO_define - lineno : %d macro : %*s\n"),
5785 lineno
, (int) (curr
- string
), string
);
5790 case DW_MACINFO_undef
:
5791 READ_ULEB (lineno
, curr
, end
);
5793 curr
+= strnlen ((char *) string
, end
- string
);
5794 printf (_(" DW_MACINFO_undef - lineno : %d macro : %*s\n"),
5795 lineno
, (int) (curr
- string
), string
);
5800 case DW_MACINFO_vendor_ext
:
5802 unsigned int constant
;
5804 READ_ULEB (constant
, curr
, end
);
5806 curr
+= strnlen ((char *) string
, end
- string
);
5807 printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %*s\n"),
5808 constant
, (int) (curr
- string
), string
);
5819 /* Given LINE_OFFSET into the .debug_line section, attempt to return
5820 filename and dirname corresponding to file name table entry with index
5821 FILEIDX. Return NULL on failure. */
5823 static unsigned char *
5824 get_line_filename_and_dirname (dwarf_vma line_offset
,
5826 unsigned char **dir_name
)
5828 struct dwarf_section
*section
= &debug_displays
[line
].section
;
5829 unsigned char *hdrptr
, *dirtable
, *file_name
;
5830 unsigned int offset_size
;
5831 unsigned int version
, opcode_base
;
5832 dwarf_vma length
, diridx
;
5833 const unsigned char * end
;
5836 if (section
->start
== NULL
5837 || line_offset
>= section
->size
5841 hdrptr
= section
->start
+ line_offset
;
5842 end
= section
->start
+ section
->size
;
5844 SAFE_BYTE_GET_AND_INC (length
, hdrptr
, 4, end
);
5845 if (length
== 0xffffffff)
5847 /* This section is 64-bit DWARF 3. */
5848 SAFE_BYTE_GET_AND_INC (length
, hdrptr
, 8, end
);
5854 if (length
> (size_t) (end
- hdrptr
)
5855 || length
< 2 + offset_size
+ 1 + 3 + 1)
5857 end
= hdrptr
+ length
;
5859 SAFE_BYTE_GET_AND_INC (version
, hdrptr
, 2, end
);
5860 if (version
!= 2 && version
!= 3 && version
!= 4)
5862 hdrptr
+= offset_size
+ 1;/* Skip prologue_length and min_insn_length. */
5864 hdrptr
++; /* Skip max_ops_per_insn. */
5865 hdrptr
+= 3; /* Skip default_is_stmt, line_base, line_range. */
5867 SAFE_BYTE_GET_AND_INC (opcode_base
, hdrptr
, 1, end
);
5868 if (opcode_base
== 0
5869 || opcode_base
- 1 >= (size_t) (end
- hdrptr
))
5872 hdrptr
+= opcode_base
- 1;
5875 /* Skip over dirname table. */
5876 while (*hdrptr
!= '\0')
5878 hdrptr
+= strnlen ((char *) hdrptr
, end
- hdrptr
);
5884 hdrptr
++; /* Skip the NUL at the end of the table. */
5886 /* Now skip over preceding filename table entries. */
5887 for (; hdrptr
< end
&& *hdrptr
!= '\0' && fileidx
> 1; fileidx
--)
5889 hdrptr
+= strnlen ((char *) hdrptr
, end
- hdrptr
);
5892 SKIP_ULEB (hdrptr
, end
);
5893 SKIP_ULEB (hdrptr
, end
);
5894 SKIP_ULEB (hdrptr
, end
);
5896 if (hdrptr
>= end
|| *hdrptr
== '\0')
5900 hdrptr
+= strnlen ((char *) hdrptr
, end
- hdrptr
);
5905 READ_ULEB (diridx
, hdrptr
, end
);
5908 for (; dirtable
< end
&& *dirtable
!= '\0' && diridx
> 1; diridx
--)
5910 dirtable
+= strnlen ((char *) dirtable
, end
- dirtable
);
5914 if (dirtable
>= end
|| *dirtable
== '\0')
5916 *dir_name
= dirtable
;
5921 display_debug_macro (struct dwarf_section
*section
,
5924 unsigned char *start
= section
->start
;
5925 unsigned char *end
= start
+ section
->size
;
5926 unsigned char *curr
= start
;
5927 unsigned char *extended_op_buf
[256];
5928 bool is_dwo
= false;
5929 const char *suffix
= strrchr (section
->name
, '.');
5931 if (suffix
&& strcmp (suffix
, ".dwo") == 0)
5934 load_debug_section_with_follow (str
, file
);
5935 load_debug_section_with_follow (line
, file
);
5936 load_debug_section_with_follow (str_index
, file
);
5938 introduce (section
, false);
5942 unsigned int lineno
, version
, flags
;
5943 unsigned int offset_size
;
5944 const unsigned char *string
;
5945 dwarf_vma line_offset
= 0, sec_offset
= curr
- start
, offset
;
5946 unsigned char **extended_ops
= NULL
;
5948 SAFE_BYTE_GET_AND_INC (version
, curr
, 2, end
);
5949 if (version
!= 4 && version
!= 5)
5951 error (_("Expected to find a version number of 4 or 5 in section %s but found %d instead\n"),
5952 section
->name
, version
);
5956 SAFE_BYTE_GET_AND_INC (flags
, curr
, 1, end
);
5957 offset_size
= (flags
& 1) ? 8 : 4;
5958 printf (_(" Offset: 0x%lx\n"),
5959 (unsigned long) sec_offset
);
5960 printf (_(" Version: %d\n"), version
);
5961 printf (_(" Offset size: %d\n"), offset_size
);
5964 SAFE_BYTE_GET_AND_INC (line_offset
, curr
, offset_size
, end
);
5965 printf (_(" Offset into .debug_line: 0x%lx\n"),
5966 (unsigned long) line_offset
);
5970 unsigned int i
, count
, op
;
5973 SAFE_BYTE_GET_AND_INC (count
, curr
, 1, end
);
5975 memset (extended_op_buf
, 0, sizeof (extended_op_buf
));
5976 extended_ops
= extended_op_buf
;
5979 printf (_(" Extension opcode arguments:\n"));
5980 for (i
= 0; i
< count
; i
++)
5982 SAFE_BYTE_GET_AND_INC (op
, curr
, 1, end
);
5983 extended_ops
[op
] = curr
;
5984 READ_ULEB (nargs
, curr
, end
);
5986 printf (_(" DW_MACRO_%02x has no arguments\n"), op
);
5989 printf (_(" DW_MACRO_%02x arguments: "), op
);
5990 for (n
= 0; n
< nargs
; n
++)
5994 SAFE_BYTE_GET_AND_INC (form
, curr
, 1, end
);
5995 printf ("%s%s", get_FORM_name (form
),
5996 n
== nargs
- 1 ? "\n" : ", ");
6006 case DW_FORM_block1
:
6007 case DW_FORM_block2
:
6008 case DW_FORM_block4
:
6010 case DW_FORM_string
:
6012 case DW_FORM_sec_offset
:
6015 error (_("Invalid extension opcode form %s\n"),
6016 get_FORM_name (form
));
6032 error (_(".debug_macro section not zero terminated\n"));
6036 SAFE_BYTE_GET_AND_INC (op
, curr
, 1, end
);
6042 case DW_MACRO_define
:
6043 READ_ULEB (lineno
, curr
, end
);
6045 curr
+= strnlen ((char *) string
, end
- string
) + 1;
6046 printf (_(" DW_MACRO_define - lineno : %d macro : %s\n"),
6050 case DW_MACRO_undef
:
6051 READ_ULEB (lineno
, curr
, end
);
6053 curr
+= strnlen ((char *) string
, end
- string
) + 1;
6054 printf (_(" DW_MACRO_undef - lineno : %d macro : %s\n"),
6058 case DW_MACRO_start_file
:
6060 unsigned int filenum
;
6061 unsigned char *file_name
= NULL
, *dir_name
= NULL
;
6063 READ_ULEB (lineno
, curr
, end
);
6064 READ_ULEB (filenum
, curr
, end
);
6066 if ((flags
& 2) == 0)
6067 error (_("DW_MACRO_start_file used, but no .debug_line offset provided.\n"));
6070 = get_line_filename_and_dirname (line_offset
, filenum
,
6072 if (file_name
== NULL
)
6073 printf (_(" DW_MACRO_start_file - lineno: %d filenum: %d\n"),
6076 printf (_(" DW_MACRO_start_file - lineno: %d filenum: %d filename: %s%s%s\n"),
6078 dir_name
!= NULL
? (const char *) dir_name
: "",
6079 dir_name
!= NULL
? "/" : "", file_name
);
6083 case DW_MACRO_end_file
:
6084 printf (_(" DW_MACRO_end_file\n"));
6087 case DW_MACRO_define_strp
:
6088 READ_ULEB (lineno
, curr
, end
);
6089 if (version
== 4 && is_dwo
)
6090 READ_ULEB (offset
, curr
, end
);
6092 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6093 string
= fetch_indirect_string (offset
);
6094 printf (_(" DW_MACRO_define_strp - lineno : %d macro : %s\n"),
6098 case DW_MACRO_undef_strp
:
6099 READ_ULEB (lineno
, curr
, end
);
6100 if (version
== 4 && is_dwo
)
6101 READ_ULEB (offset
, curr
, end
);
6103 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6104 string
= fetch_indirect_string (offset
);
6105 printf (_(" DW_MACRO_undef_strp - lineno : %d macro : %s\n"),
6109 case DW_MACRO_import
:
6110 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6111 printf (_(" DW_MACRO_import - offset : 0x%lx\n"),
6112 (unsigned long) offset
);
6115 case DW_MACRO_define_sup
:
6116 READ_ULEB (lineno
, curr
, end
);
6117 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6118 printf (_(" DW_MACRO_define_sup - lineno : %d macro offset : 0x%lx\n"),
6119 lineno
, (unsigned long) offset
);
6122 case DW_MACRO_undef_sup
:
6123 READ_ULEB (lineno
, curr
, end
);
6124 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6125 printf (_(" DW_MACRO_undef_sup - lineno : %d macro offset : 0x%lx\n"),
6126 lineno
, (unsigned long) offset
);
6129 case DW_MACRO_import_sup
:
6130 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6131 printf (_(" DW_MACRO_import_sup - offset : 0x%lx\n"),
6132 (unsigned long) offset
);
6135 case DW_MACRO_define_strx
:
6136 case DW_MACRO_undef_strx
:
6137 READ_ULEB (lineno
, curr
, end
);
6138 READ_ULEB (offset
, curr
, end
);
6139 string
= (const unsigned char *)
6140 fetch_indexed_string (offset
, NULL
, offset_size
, false);
6141 if (op
== DW_MACRO_define_strx
)
6142 printf (" DW_MACRO_define_strx ");
6144 printf (" DW_MACRO_undef_strx ");
6146 printf (_("(with offset %s) "), dwarf_vmatoa ("x", offset
));
6147 printf (_("lineno : %d macro : %s\n"),
6152 if (op
>= DW_MACRO_lo_user
&& op
<= DW_MACRO_hi_user
)
6154 printf (_(" <Target Specific macro op: %#x - UNHANDLED"), op
);
6158 if (extended_ops
== NULL
|| extended_ops
[op
] == NULL
)
6160 error (_(" Unknown macro opcode %02x seen\n"), op
);
6165 /* Skip over unhandled opcodes. */
6167 unsigned char *desc
= extended_ops
[op
];
6168 READ_ULEB (nargs
, desc
, end
);
6171 printf (_(" DW_MACRO_%02x\n"), op
);
6174 printf (_(" DW_MACRO_%02x -"), op
);
6175 for (n
= 0; n
< nargs
; n
++)
6179 /* DW_FORM_implicit_const is not expected here. */
6180 SAFE_BYTE_GET_AND_INC (val
, desc
, 1, end
);
6182 = read_and_display_attr_value (0, val
, 0,
6183 start
, curr
, end
, 0, 0, offset_size
,
6184 version
, NULL
, 0, NULL
,
6202 display_debug_abbrev (struct dwarf_section
*section
,
6203 void *file ATTRIBUTE_UNUSED
)
6205 abbrev_entry
*entry
;
6206 unsigned char *start
= section
->start
;
6208 introduce (section
, false);
6215 offset
= start
- section
->start
;
6216 list
= find_abbrev_list_by_abbrev_offset (0, offset
);
6219 list
= new_abbrev_list (0, offset
);
6220 start
= process_abbrev_set (section
, 0, section
->size
, offset
, list
);
6221 list
->start_of_next_abbrevs
= start
;
6224 start
= list
->start_of_next_abbrevs
;
6226 if (list
->first_abbrev
== NULL
)
6229 printf (_(" Number TAG (0x%lx)\n"), (long) offset
);
6231 for (entry
= list
->first_abbrev
; entry
; entry
= entry
->next
)
6235 printf (" %ld %s [%s]\n",
6237 get_TAG_name (entry
->tag
),
6238 entry
->children
? _("has children") : _("no children"));
6240 for (attr
= entry
->first_attr
; attr
; attr
= attr
->next
)
6242 printf (" %-18s %s",
6243 get_AT_name (attr
->attribute
),
6244 get_FORM_name (attr
->form
));
6245 if (attr
->form
== DW_FORM_implicit_const
)
6246 printf (": %" BFD_VMA_FMT
"d", attr
->implicit_const
);
6258 /* Return true when ADDR is the maximum address, when addresses are
6259 POINTER_SIZE bytes long. */
6262 is_max_address (dwarf_vma addr
, unsigned int pointer_size
)
6264 dwarf_vma mask
= ~(~(dwarf_vma
) 1 << (pointer_size
* 8 - 1));
6265 return ((addr
& mask
) == mask
);
6268 /* Display a view pair list starting at *VSTART_PTR and ending at
6269 VLISTEND within SECTION. */
6272 display_view_pair_list (struct dwarf_section
*section
,
6273 unsigned char **vstart_ptr
,
6274 unsigned int debug_info_entry
,
6275 unsigned char *vlistend
)
6277 unsigned char *vstart
= *vstart_ptr
;
6278 unsigned char *section_end
= section
->start
+ section
->size
;
6279 unsigned int pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6281 if (vlistend
< section_end
)
6282 section_end
= vlistend
;
6286 while (vstart
< section_end
)
6288 dwarf_vma off
= vstart
- section
->start
;
6289 dwarf_vma vbegin
, vend
;
6291 READ_ULEB (vbegin
, vstart
, section_end
);
6292 if (vstart
== section_end
)
6295 READ_ULEB (vend
, vstart
, section_end
);
6296 printf (" %8.8lx ", (unsigned long) off
);
6298 print_dwarf_view (vbegin
, pointer_size
, 1);
6299 print_dwarf_view (vend
, pointer_size
, 1);
6300 printf (_("location view pair\n"));
6304 *vstart_ptr
= vstart
;
6307 /* Display a location list from a normal (ie, non-dwo) .debug_loc section. */
6310 display_loc_list (struct dwarf_section
*section
,
6311 unsigned char **start_ptr
,
6312 unsigned int debug_info_entry
,
6314 dwarf_vma base_address
,
6315 unsigned char **vstart_ptr
,
6318 unsigned char *start
= *start_ptr
, *vstart
= *vstart_ptr
;
6319 unsigned char *section_end
= section
->start
+ section
->size
;
6320 unsigned long cu_offset
;
6321 unsigned int pointer_size
;
6322 unsigned int offset_size
;
6327 unsigned short length
;
6328 int need_frame_base
;
6330 if (debug_info_entry
>= num_debug_info_entries
)
6332 warn (_("No debug information available for loc lists of entry: %u\n"),
6337 cu_offset
= debug_information
[debug_info_entry
].cu_offset
;
6338 pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6339 offset_size
= debug_information
[debug_info_entry
].offset_size
;
6340 dwarf_version
= debug_information
[debug_info_entry
].dwarf_version
;
6342 if (pointer_size
< 2 || pointer_size
> 8)
6344 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
6345 pointer_size
, debug_info_entry
);
6351 dwarf_vma off
= offset
+ (start
- *start_ptr
);
6352 dwarf_vma vbegin
= vm1
, vend
= vm1
;
6354 if (start
+ 2 * pointer_size
> section_end
)
6356 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6357 (unsigned long) offset
);
6361 printf (" %8.8lx ", (unsigned long) off
);
6363 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, section_end
);
6364 SAFE_BYTE_GET_AND_INC (end
, start
, pointer_size
, section_end
);
6366 if (begin
== 0 && end
== 0)
6368 /* PR 18374: In a object file we can have a location list that
6369 starts with a begin and end of 0 because there are relocations
6370 that need to be applied to the addresses. Actually applying
6371 the relocations now does not help as they will probably resolve
6372 to 0, since the object file has not been fully linked. Real
6373 end of list markers will not have any relocations against them. */
6374 if (! reloc_at (section
, off
)
6375 && ! reloc_at (section
, off
+ pointer_size
))
6377 printf (_("<End of list>\n"));
6382 /* Check base address specifiers. */
6383 if (is_max_address (begin
, pointer_size
)
6384 && !is_max_address (end
, pointer_size
))
6387 print_dwarf_vma (begin
, pointer_size
);
6388 print_dwarf_vma (end
, pointer_size
);
6389 printf (_("(base address)\n"));
6395 off
= offset
+ (vstart
- *start_ptr
);
6397 READ_ULEB (vbegin
, vstart
, section_end
);
6398 print_dwarf_view (vbegin
, pointer_size
, 1);
6400 READ_ULEB (vend
, vstart
, section_end
);
6401 print_dwarf_view (vend
, pointer_size
, 1);
6403 printf (_("views at %8.8lx for:\n %*s "),
6404 (unsigned long) off
, 8, "");
6407 if (start
+ 2 > section_end
)
6409 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6410 (unsigned long) offset
);
6414 SAFE_BYTE_GET_AND_INC (length
, start
, 2, section_end
);
6416 if (start
+ length
> section_end
)
6418 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6419 (unsigned long) offset
);
6423 print_dwarf_vma (begin
+ base_address
, pointer_size
);
6424 print_dwarf_vma (end
+ base_address
, pointer_size
);
6427 need_frame_base
= decode_location_expression (start
,
6432 cu_offset
, section
);
6435 if (need_frame_base
&& !has_frame_base
)
6436 printf (_(" [without DW_AT_frame_base]"));
6438 if (begin
== end
&& vbegin
== vend
)
6439 fputs (_(" (start == end)"), stdout
);
6440 else if (begin
> end
|| (begin
== end
&& vbegin
> vend
))
6441 fputs (_(" (start > end)"), stdout
);
6449 *vstart_ptr
= vstart
;
6452 /* Display a location list from a normal (ie, non-dwo) .debug_loclists section. */
6455 display_loclists_list (struct dwarf_section
*section
,
6456 unsigned char **start_ptr
,
6457 unsigned int debug_info_entry
,
6459 dwarf_vma base_address
,
6460 unsigned char **vstart_ptr
,
6463 unsigned char *start
= *start_ptr
, *vstart
= *vstart_ptr
;
6464 unsigned char *section_end
= section
->start
+ section
->size
;
6465 unsigned long cu_offset
;
6466 unsigned int pointer_size
;
6467 unsigned int offset_size
;
6470 /* Initialize it due to a false compiler warning. */
6471 dwarf_vma begin
= -1, vbegin
= -1;
6472 dwarf_vma end
= -1, vend
= -1;
6474 int need_frame_base
;
6476 if (debug_info_entry
>= num_debug_info_entries
)
6478 warn (_("No debug information available for "
6479 "loclists lists of entry: %u\n"),
6484 cu_offset
= debug_information
[debug_info_entry
].cu_offset
;
6485 pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6486 offset_size
= debug_information
[debug_info_entry
].offset_size
;
6487 dwarf_version
= debug_information
[debug_info_entry
].dwarf_version
;
6489 if (pointer_size
< 2 || pointer_size
> 8)
6491 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
6492 pointer_size
, debug_info_entry
);
6498 dwarf_vma off
= offset
+ (start
- *start_ptr
);
6499 enum dwarf_location_list_entry_type llet
;
6501 if (start
+ 1 > section_end
)
6503 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6504 (unsigned long) offset
);
6508 printf (" %8.8lx ", (unsigned long) off
);
6510 SAFE_BYTE_GET_AND_INC (llet
, start
, 1, section_end
);
6512 if (vstart
&& (llet
== DW_LLE_offset_pair
6513 || llet
== DW_LLE_start_end
6514 || llet
== DW_LLE_start_length
))
6516 off
= offset
+ (vstart
- *start_ptr
);
6518 READ_ULEB (vbegin
, vstart
, section_end
);
6519 print_dwarf_view (vbegin
, pointer_size
, 1);
6521 READ_ULEB (vend
, vstart
, section_end
);
6522 print_dwarf_view (vend
, pointer_size
, 1);
6524 printf (_("views at %8.8lx for:\n %*s "),
6525 (unsigned long) off
, 8, "");
6530 case DW_LLE_end_of_list
:
6531 printf (_("<End of list>\n"));
6533 case DW_LLE_offset_pair
:
6534 READ_ULEB (begin
, start
, section_end
);
6535 begin
+= base_address
;
6536 READ_ULEB (end
, start
, section_end
);
6537 end
+= base_address
;
6539 case DW_LLE_start_end
:
6540 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, section_end
);
6541 SAFE_BYTE_GET_AND_INC (end
, start
, pointer_size
, section_end
);
6543 case DW_LLE_start_length
:
6544 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, section_end
);
6545 READ_ULEB (end
, start
, section_end
);
6548 case DW_LLE_base_address
:
6549 SAFE_BYTE_GET_AND_INC (base_address
, start
, pointer_size
,
6551 print_dwarf_vma (base_address
, pointer_size
);
6552 printf (_("(base address)\n"));
6554 #ifdef DW_LLE_view_pair
6555 case DW_LLE_view_pair
:
6557 printf (_("View pair entry in loclist with locviews attribute\n"));
6558 READ_ULEB (vbegin
, start
, section_end
);
6559 print_dwarf_view (vbegin
, pointer_size
, 1);
6561 READ_ULEB (vend
, start
, section_end
);
6562 print_dwarf_view (vend
, pointer_size
, 1);
6564 printf (_("views for:\n"));
6568 error (_("Invalid location list entry type %d\n"), llet
);
6571 if (llet
== DW_LLE_end_of_list
)
6573 if (llet
!= DW_LLE_offset_pair
6574 && llet
!= DW_LLE_start_end
6575 && llet
!= DW_LLE_start_length
)
6578 if (start
+ 2 > section_end
)
6580 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6581 (unsigned long) offset
);
6585 READ_ULEB (length
, start
, section_end
);
6587 print_dwarf_vma (begin
, pointer_size
);
6588 print_dwarf_vma (end
, pointer_size
);
6591 need_frame_base
= decode_location_expression (start
,
6596 cu_offset
, section
);
6599 if (need_frame_base
&& !has_frame_base
)
6600 printf (_(" [without DW_AT_frame_base]"));
6602 if (begin
== end
&& vbegin
== vend
)
6603 fputs (_(" (start == end)"), stdout
);
6604 else if (begin
> end
|| (begin
== end
&& vbegin
> vend
))
6605 fputs (_(" (start > end)"), stdout
);
6613 if (vbegin
!= vm1
|| vend
!= vm1
)
6614 printf (_("Trailing view pair not used in a range"));
6617 *vstart_ptr
= vstart
;
6620 /* Print a .debug_addr table index in decimal, surrounded by square brackets,
6621 right-adjusted in a field of length LEN, and followed by a space. */
6624 print_addr_index (unsigned int idx
, unsigned int len
)
6626 static char buf
[15];
6627 snprintf (buf
, sizeof (buf
), "[%d]", idx
);
6628 printf ("%*s ", len
, buf
);
6631 /* Display a location list from a .dwo section. It uses address indexes rather
6632 than embedded addresses. This code closely follows display_loc_list, but the
6633 two are sufficiently different that combining things is very ugly. */
6636 display_loc_list_dwo (struct dwarf_section
*section
,
6637 unsigned char **start_ptr
,
6638 unsigned int debug_info_entry
,
6640 unsigned char **vstart_ptr
,
6643 unsigned char *start
= *start_ptr
, *vstart
= *vstart_ptr
;
6644 unsigned char *section_end
= section
->start
+ section
->size
;
6645 unsigned long cu_offset
;
6646 unsigned int pointer_size
;
6647 unsigned int offset_size
;
6650 unsigned short length
;
6651 int need_frame_base
;
6654 if (debug_info_entry
>= num_debug_info_entries
)
6656 warn (_("No debug information for loc lists of entry: %u\n"),
6661 cu_offset
= debug_information
[debug_info_entry
].cu_offset
;
6662 pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6663 offset_size
= debug_information
[debug_info_entry
].offset_size
;
6664 dwarf_version
= debug_information
[debug_info_entry
].dwarf_version
;
6666 if (pointer_size
< 2 || pointer_size
> 8)
6668 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
6669 pointer_size
, debug_info_entry
);
6675 printf (" %8.8lx ", (unsigned long) (offset
+ (start
- *start_ptr
)));
6677 if (start
>= section_end
)
6679 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6680 (unsigned long) offset
);
6684 SAFE_BYTE_GET_AND_INC (entry_type
, start
, 1, section_end
);
6697 dwarf_vma off
= offset
+ (vstart
- *start_ptr
);
6699 READ_ULEB (view
, vstart
, section_end
);
6700 print_dwarf_view (view
, 8, 1);
6702 READ_ULEB (view
, vstart
, section_end
);
6703 print_dwarf_view (view
, 8, 1);
6705 printf (_("views at %8.8lx for:\n %*s "),
6706 (unsigned long) off
, 8, "");
6714 case 0: /* A terminating entry. */
6716 *vstart_ptr
= vstart
;
6717 printf (_("<End of list>\n"));
6719 case 1: /* A base-address entry. */
6720 READ_ULEB (idx
, start
, section_end
);
6721 print_addr_index (idx
, 8);
6722 printf ("%*s", 9 + (vstart
? 2 * 6 : 0), "");
6723 printf (_("(base address selection entry)\n"));
6725 case 2: /* A start/end entry. */
6726 READ_ULEB (idx
, start
, section_end
);
6727 print_addr_index (idx
, 8);
6728 READ_ULEB (idx
, start
, section_end
);
6729 print_addr_index (idx
, 8);
6731 case 3: /* A start/length entry. */
6732 READ_ULEB (idx
, start
, section_end
);
6733 print_addr_index (idx
, 8);
6734 SAFE_BYTE_GET_AND_INC (idx
, start
, 4, section_end
);
6735 printf ("%08x ", idx
);
6737 case 4: /* An offset pair entry. */
6738 SAFE_BYTE_GET_AND_INC (idx
, start
, 4, section_end
);
6739 printf ("%08x ", idx
);
6740 SAFE_BYTE_GET_AND_INC (idx
, start
, 4, section_end
);
6741 printf ("%08x ", idx
);
6744 warn (_("Unknown location list entry type 0x%x.\n"), entry_type
);
6746 *vstart_ptr
= vstart
;
6750 if (start
+ 2 > section_end
)
6752 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6753 (unsigned long) offset
);
6757 SAFE_BYTE_GET_AND_INC (length
, start
, 2, section_end
);
6758 if (start
+ length
> section_end
)
6760 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6761 (unsigned long) offset
);
6766 need_frame_base
= decode_location_expression (start
,
6771 cu_offset
, section
);
6774 if (need_frame_base
&& !has_frame_base
)
6775 printf (_(" [without DW_AT_frame_base]"));
6783 *vstart_ptr
= vstart
;
6786 /* Sort array of indexes in ascending order of loc_offsets[idx] and
6789 static dwarf_vma
*loc_offsets
, *loc_views
;
6792 loc_offsets_compar (const void *ap
, const void *bp
)
6794 dwarf_vma a
= loc_offsets
[*(const unsigned int *) ap
];
6795 dwarf_vma b
= loc_offsets
[*(const unsigned int *) bp
];
6797 int ret
= (a
> b
) - (b
> a
);
6801 a
= loc_views
[*(const unsigned int *) ap
];
6802 b
= loc_views
[*(const unsigned int *) bp
];
6804 ret
= (a
> b
) - (b
> a
);
6810 display_debug_loc (struct dwarf_section
*section
, void *file
)
6812 unsigned char *start
= section
->start
, *vstart
= NULL
;
6813 unsigned long bytes
;
6814 unsigned char *section_begin
= start
;
6815 unsigned int num_loc_list
= 0;
6816 unsigned long last_offset
= 0;
6817 unsigned long last_view
= 0;
6818 unsigned int first
= 0;
6821 int seen_first_offset
= 0;
6822 int locs_sorted
= 1;
6823 unsigned char *next
= start
, *vnext
= vstart
;
6824 unsigned int *array
= NULL
;
6825 const char *suffix
= strrchr (section
->name
, '.');
6826 bool is_dwo
= false;
6827 int is_loclists
= strstr (section
->name
, "debug_loclists") != NULL
;
6828 dwarf_vma expected_start
= 0;
6830 if (suffix
&& strcmp (suffix
, ".dwo") == 0)
6833 bytes
= section
->size
;
6837 printf (_("\nThe %s section is empty.\n"), section
->name
);
6843 unsigned char *hdrptr
= section_begin
;
6844 dwarf_vma ll_length
;
6845 unsigned short ll_version
;
6846 unsigned char *end
= section_begin
+ section
->size
;
6847 unsigned char address_size
, segment_selector_size
;
6848 uint32_t offset_entry_count
;
6850 SAFE_BYTE_GET_AND_INC (ll_length
, hdrptr
, 4, end
);
6851 if (ll_length
== 0xffffffff)
6852 SAFE_BYTE_GET_AND_INC (ll_length
, hdrptr
, 8, end
);
6854 SAFE_BYTE_GET_AND_INC (ll_version
, hdrptr
, 2, end
);
6855 if (ll_version
!= 5)
6857 warn (_("The %s section contains corrupt or "
6858 "unsupported version number: %d.\n"),
6859 section
->name
, ll_version
);
6863 SAFE_BYTE_GET_AND_INC (address_size
, hdrptr
, 1, end
);
6865 SAFE_BYTE_GET_AND_INC (segment_selector_size
, hdrptr
, 1, end
);
6866 if (segment_selector_size
!= 0)
6868 warn (_("The %s section contains "
6869 "unsupported segment selector size: %d.\n"),
6870 section
->name
, segment_selector_size
);
6874 SAFE_BYTE_GET_AND_INC (offset_entry_count
, hdrptr
, 4, end
);
6875 if (offset_entry_count
!= 0)
6877 warn (_("The %s section contains "
6878 "unsupported offset entry count: %d.\n"),
6879 section
->name
, offset_entry_count
);
6883 expected_start
= hdrptr
- section_begin
;
6886 if (load_debug_info (file
) == 0)
6888 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
6893 /* Check the order of location list in .debug_info section. If
6894 offsets of location lists are in the ascending order, we can
6895 use `debug_information' directly. */
6896 for (i
= 0; i
< num_debug_info_entries
; i
++)
6900 num
= debug_information
[i
].num_loc_offsets
;
6901 if (num
> num_loc_list
)
6904 /* Check if we can use `debug_information' directly. */
6905 if (locs_sorted
&& num
!= 0)
6907 if (!seen_first_offset
)
6909 /* This is the first location list. */
6910 last_offset
= debug_information
[i
].loc_offsets
[0];
6911 last_view
= debug_information
[i
].loc_views
[0];
6913 seen_first_offset
= 1;
6919 for (; j
< num
; j
++)
6922 debug_information
[i
].loc_offsets
[j
]
6923 || (last_offset
== debug_information
[i
].loc_offsets
[j
]
6924 && last_view
> debug_information
[i
].loc_views
[j
]))
6929 last_offset
= debug_information
[i
].loc_offsets
[j
];
6930 last_view
= debug_information
[i
].loc_views
[j
];
6935 if (!seen_first_offset
)
6936 error (_("No location lists in .debug_info section!\n"));
6938 if (debug_information
[first
].num_loc_offsets
> 0
6939 && debug_information
[first
].loc_offsets
[0] != expected_start
6940 && debug_information
[first
].loc_views
[0] != expected_start
)
6941 warn (_("Location lists in %s section start at 0x%s\n"),
6943 dwarf_vmatoa ("x", debug_information
[first
].loc_offsets
[0]));
6946 array
= (unsigned int *) xcmalloc (num_loc_list
, sizeof (unsigned int));
6948 introduce (section
, false);
6950 if (reloc_at (section
, 0))
6951 printf (_(" Warning: This section has relocations - addresses seen here may not be accurate.\n\n"));
6953 printf (_(" Offset Begin End Expression\n"));
6955 seen_first_offset
= 0;
6956 for (i
= first
; i
< num_debug_info_entries
; i
++)
6958 dwarf_vma offset
, voffset
;
6959 dwarf_vma base_address
;
6965 for (k
= 0; k
< debug_information
[i
].num_loc_offsets
; k
++)
6967 loc_offsets
= debug_information
[i
].loc_offsets
;
6968 loc_views
= debug_information
[i
].loc_views
;
6969 qsort (array
, debug_information
[i
].num_loc_offsets
,
6970 sizeof (*array
), loc_offsets_compar
);
6973 int adjacent_view_loclists
= 1;
6974 for (k
= 0; k
< debug_information
[i
].num_loc_offsets
; k
++)
6976 j
= locs_sorted
? k
: array
[k
];
6978 && (debug_information
[i
].loc_offsets
[locs_sorted
6979 ? k
- 1 : array
[k
- 1]]
6980 == debug_information
[i
].loc_offsets
[j
])
6981 && (debug_information
[i
].loc_views
[locs_sorted
6982 ? k
- 1 : array
[k
- 1]]
6983 == debug_information
[i
].loc_views
[j
]))
6985 has_frame_base
= debug_information
[i
].have_frame_base
[j
];
6986 offset
= debug_information
[i
].loc_offsets
[j
];
6987 next
= section_begin
+ offset
;
6988 voffset
= debug_information
[i
].loc_views
[j
];
6990 vnext
= section_begin
+ voffset
;
6993 base_address
= debug_information
[i
].base_address
;
6995 if (vnext
&& vnext
< next
)
6998 display_view_pair_list (section
, &vstart
, i
, next
);
7003 if (!seen_first_offset
|| !adjacent_view_loclists
)
7004 seen_first_offset
= 1;
7008 warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
7009 (unsigned long) (start
- section_begin
),
7010 (unsigned long) offset
);
7011 else if (start
> next
)
7012 warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
7013 (unsigned long) (start
- section_begin
),
7014 (unsigned long) offset
);
7019 if (offset
>= bytes
)
7021 warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"),
7022 (unsigned long) offset
);
7026 if (vnext
&& voffset
>= bytes
)
7028 warn (_("View Offset 0x%lx is bigger than .debug_loc section size.\n"),
7029 (unsigned long) voffset
);
7036 display_loc_list_dwo (section
, &start
, i
, offset
,
7037 &vstart
, has_frame_base
);
7039 display_loc_list (section
, &start
, i
, offset
, base_address
,
7040 &vstart
, has_frame_base
);
7045 warn (_("DWO is not yet supported.\n"));
7047 display_loclists_list (section
, &start
, i
, offset
, base_address
,
7048 &vstart
, has_frame_base
);
7051 /* FIXME: this arrangement is quite simplistic. Nothing
7052 requires locview lists to be adjacent to corresponding
7053 loclists, and a single loclist could be augmented by
7054 different locview lists, and vice-versa, unlikely as it
7055 is that it would make sense to do so. Hopefully we'll
7056 have view pair support built into loclists before we ever
7057 need to address all these possibilities. */
7058 if (adjacent_view_loclists
&& vnext
7059 && vnext
!= start
&& vstart
!= next
)
7061 adjacent_view_loclists
= 0;
7062 warn (_("Hole and overlap detection requires adjacent view lists and loclists.\n"));
7065 if (vnext
&& vnext
== start
)
7066 display_view_pair_list (section
, &start
, i
, vstart
);
7070 if (start
< section
->start
+ section
->size
)
7071 warn (ngettext ("There is %ld unused byte at the end of section %s\n",
7072 "There are %ld unused bytes at the end of section %s\n",
7073 (long) (section
->start
+ section
->size
- start
)),
7074 (long) (section
->start
+ section
->size
- start
), section
->name
);
7081 display_debug_str (struct dwarf_section
*section
,
7082 void *file ATTRIBUTE_UNUSED
)
7084 unsigned char *start
= section
->start
;
7085 unsigned long bytes
= section
->size
;
7086 dwarf_vma addr
= section
->address
;
7090 printf (_("\nThe %s section is empty.\n"), section
->name
);
7094 introduce (section
, false);
7102 lbytes
= (bytes
> 16 ? 16 : bytes
);
7104 printf (" 0x%8.8lx ", (unsigned long) addr
);
7106 for (j
= 0; j
< 16; j
++)
7109 printf ("%2.2x", start
[j
]);
7117 for (j
= 0; j
< lbytes
; j
++)
7120 if (k
>= ' ' && k
< 0x80)
7139 display_debug_info (struct dwarf_section
*section
, void *file
)
7141 return process_debug_info (section
, file
, section
->abbrev_sec
, false, false);
7145 display_debug_types (struct dwarf_section
*section
, void *file
)
7147 return process_debug_info (section
, file
, section
->abbrev_sec
, false, true);
7151 display_trace_info (struct dwarf_section
*section
, void *file
)
7153 return process_debug_info (section
, file
, section
->abbrev_sec
, false, true);
7157 display_debug_aranges (struct dwarf_section
*section
,
7158 void *file ATTRIBUTE_UNUSED
)
7160 unsigned char *start
= section
->start
;
7161 unsigned char *end
= start
+ section
->size
;
7163 introduce (section
, false);
7165 /* It does not matter if this load fails,
7166 we test for that later on. */
7167 load_debug_info (file
);
7171 unsigned char *hdrptr
;
7172 DWARF2_Internal_ARange arange
;
7173 unsigned char *addr_ranges
;
7176 unsigned long sec_off
;
7177 unsigned char address_size
;
7179 unsigned int offset_size
;
7180 unsigned int initial_length_size
;
7184 SAFE_BYTE_GET_AND_INC (arange
.ar_length
, hdrptr
, 4, end
);
7185 if (arange
.ar_length
== 0xffffffff)
7187 SAFE_BYTE_GET_AND_INC (arange
.ar_length
, hdrptr
, 8, end
);
7189 initial_length_size
= 12;
7194 initial_length_size
= 4;
7197 sec_off
= hdrptr
- section
->start
;
7198 if (sec_off
+ arange
.ar_length
< sec_off
7199 || sec_off
+ arange
.ar_length
> section
->size
)
7201 warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
7203 sec_off
- initial_length_size
,
7204 dwarf_vmatoa ("x", arange
.ar_length
));
7208 SAFE_BYTE_GET_AND_INC (arange
.ar_version
, hdrptr
, 2, end
);
7209 SAFE_BYTE_GET_AND_INC (arange
.ar_info_offset
, hdrptr
, offset_size
, end
);
7211 if (num_debug_info_entries
!= DEBUG_INFO_UNAVAILABLE
7212 && num_debug_info_entries
> 0
7213 && find_debug_info_for_offset (arange
.ar_info_offset
) == NULL
)
7214 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
7215 (unsigned long) arange
.ar_info_offset
, section
->name
);
7217 SAFE_BYTE_GET_AND_INC (arange
.ar_pointer_size
, hdrptr
, 1, end
);
7218 SAFE_BYTE_GET_AND_INC (arange
.ar_segment_size
, hdrptr
, 1, end
);
7220 if (arange
.ar_version
!= 2 && arange
.ar_version
!= 3)
7222 /* PR 19872: A version number of 0 probably means that there is
7223 padding at the end of the .debug_aranges section. Gold puts
7224 it there when performing an incremental link, for example.
7225 So do not generate a warning in this case. */
7226 if (arange
.ar_version
)
7227 warn (_("Only DWARF 2 and 3 aranges are currently supported.\n"));
7231 printf (_(" Length: %ld\n"),
7232 (long) arange
.ar_length
);
7233 printf (_(" Version: %d\n"), arange
.ar_version
);
7234 printf (_(" Offset into .debug_info: 0x%lx\n"),
7235 (unsigned long) arange
.ar_info_offset
);
7236 printf (_(" Pointer Size: %d\n"), arange
.ar_pointer_size
);
7237 printf (_(" Segment Size: %d\n"), arange
.ar_segment_size
);
7239 address_size
= arange
.ar_pointer_size
+ arange
.ar_segment_size
;
7241 /* PR 17512: file: 001-108546-0.001:0.1. */
7242 if (address_size
== 0 || address_size
> 8)
7244 error (_("Invalid address size in %s section!\n"),
7249 /* The DWARF spec does not require that the address size be a power
7250 of two, but we do. This will have to change if we ever encounter
7251 an uneven architecture. */
7252 if ((address_size
& (address_size
- 1)) != 0)
7254 warn (_("Pointer size + Segment size is not a power of two.\n"));
7258 if (address_size
> 4)
7259 printf (_("\n Address Length\n"));
7261 printf (_("\n Address Length\n"));
7263 addr_ranges
= hdrptr
;
7265 /* Must pad to an alignment boundary that is twice the address size. */
7266 excess
= (hdrptr
- start
) % (2 * address_size
);
7268 addr_ranges
+= (2 * address_size
) - excess
;
7270 start
+= arange
.ar_length
+ initial_length_size
;
7272 while (addr_ranges
+ 2 * address_size
<= start
)
7274 SAFE_BYTE_GET_AND_INC (address
, addr_ranges
, address_size
, end
);
7275 SAFE_BYTE_GET_AND_INC (length
, addr_ranges
, address_size
, end
);
7278 print_dwarf_vma (address
, address_size
);
7279 print_dwarf_vma (length
, address_size
);
7289 /* Comparison function for qsort. */
7291 comp_addr_base (const void * v0
, const void * v1
)
7293 debug_info
*info0
= *(debug_info
**) v0
;
7294 debug_info
*info1
= *(debug_info
**) v1
;
7295 return info0
->addr_base
- info1
->addr_base
;
7298 /* Display the debug_addr section. */
7300 display_debug_addr (struct dwarf_section
*section
,
7303 debug_info
**debug_addr_info
;
7304 unsigned char *entry
;
7308 unsigned char * header
;
7310 if (section
->size
== 0)
7312 printf (_("\nThe %s section is empty.\n"), section
->name
);
7316 if (load_debug_info (file
) == 0)
7318 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
7323 introduce (section
, false);
7325 /* PR 17531: file: cf38d01b.
7326 We use xcalloc because a corrupt file may not have initialised all of the
7327 fields in the debug_info structure, which means that the sort below might
7328 try to move uninitialised data. */
7329 debug_addr_info
= (debug_info
**) xcalloc ((num_debug_info_entries
+ 1),
7330 sizeof (debug_info
*));
7333 for (i
= 0; i
< num_debug_info_entries
; i
++)
7334 if (debug_information
[i
].addr_base
!= DEBUG_INFO_UNAVAILABLE
)
7336 /* PR 17531: file: cf38d01b. */
7337 if (debug_information
[i
].addr_base
>= section
->size
)
7338 warn (_("Corrupt address base (%lx) found in debug section %u\n"),
7339 (unsigned long) debug_information
[i
].addr_base
, i
);
7341 debug_addr_info
[count
++] = debug_information
+ i
;
7344 /* Add a sentinel to make iteration convenient. */
7345 debug_addr_info
[count
] = (debug_info
*) xmalloc (sizeof (debug_info
));
7346 debug_addr_info
[count
]->addr_base
= section
->size
;
7347 qsort (debug_addr_info
, count
, sizeof (debug_info
*), comp_addr_base
);
7349 header
= section
->start
;
7350 for (i
= 0; i
< count
; i
++)
7353 unsigned int address_size
= debug_addr_info
[i
]->pointer_size
;
7355 printf (_(" For compilation unit at offset 0x%s:\n"),
7356 dwarf_vmatoa ("x", debug_addr_info
[i
]->cu_offset
));
7358 printf (_("\tIndex\tAddress\n"));
7359 entry
= section
->start
+ debug_addr_info
[i
]->addr_base
;
7360 if (debug_addr_info
[i
]->dwarf_version
>= 5)
7362 size_t header_size
= entry
- header
;
7363 unsigned char * curr_header
= header
;
7366 int segment_selector_size
;
7368 if (header_size
!= 8 && header_size
!= 16)
7370 warn (_("Corrupt %s section: expecting header size of 8 or 16, but found %ld instead\n"),
7371 section
->name
, (long) header_size
);
7375 SAFE_BYTE_GET_AND_INC (length
, curr_header
, 4, entry
);
7376 if (length
== 0xffffffff)
7377 SAFE_BYTE_GET_AND_INC (length
, curr_header
, 8, entry
);
7378 end
= curr_header
+ length
;
7380 SAFE_BYTE_GET_AND_INC (version
, curr_header
, 2, entry
);
7382 warn (_("Corrupt %s section: expecting version number 5 in header but found %d instead\n"),
7383 section
->name
, version
);
7385 SAFE_BYTE_GET_AND_INC (address_size
, curr_header
, 1, entry
);
7386 SAFE_BYTE_GET_AND_INC (segment_selector_size
, curr_header
, 1, entry
);
7387 address_size
+= segment_selector_size
;
7390 end
= section
->start
+ debug_addr_info
[i
+ 1]->addr_base
;
7395 dwarf_vma base
= byte_get (entry
, address_size
);
7396 printf (_("\t%d:\t"), idx
);
7397 print_dwarf_vma (base
, address_size
);
7399 entry
+= address_size
;
7405 free (debug_addr_info
);
7409 /* Display the .debug_str_offsets and .debug_str_offsets.dwo sections. */
7412 display_debug_str_offsets (struct dwarf_section
*section
,
7413 void *file ATTRIBUTE_UNUSED
)
7417 if (section
->size
== 0)
7419 printf (_("\nThe %s section is empty.\n"), section
->name
);
7423 unsigned char *start
= section
->start
;
7424 unsigned char *end
= start
+ section
->size
;
7425 unsigned char *curr
= start
;
7427 const char *suffix
= strrchr (section
->name
, '.');
7428 bool dwo
= suffix
&& strcmp (suffix
, ".dwo") == 0;
7431 load_debug_section_with_follow (str_dwo
, file
);
7433 load_debug_section_with_follow (str
, file
);
7435 introduce (section
, false);
7440 dwarf_vma entry_length
;
7442 SAFE_BYTE_GET_AND_INC (length
, curr
, 4, end
);
7443 /* FIXME: We assume that this means 64-bit DWARF is being used. */
7444 if (length
== 0xffffffff)
7446 SAFE_BYTE_GET_AND_INC (length
, curr
, 8, end
);
7452 unsigned char *entries_end
;
7455 /* This is probably an old style .debug_str_offset section which
7456 just contains offsets and no header (and the first offset is 0). */
7457 length
= section
->size
;
7458 curr
= section
->start
;
7461 printf (_(" Length: %#lx\n"), (unsigned long) length
);
7462 printf (_(" Index Offset [String]\n"));
7466 if (length
<= (dwarf_vma
) (end
- curr
))
7467 entries_end
= curr
+ length
;
7470 warn (_("Section %s is too small %#lx\n"),
7471 section
->name
, (unsigned long) section
->size
);
7476 SAFE_BYTE_GET_AND_INC (version
, curr
, 2, end
);
7478 warn (_("Unexpected version number in str_offset header: %#x\n"), version
);
7481 SAFE_BYTE_GET_AND_INC (padding
, curr
, 2, end
);
7483 warn (_("Unexpected value in str_offset header's padding field: %#x\n"), padding
);
7485 printf (_(" Length: %#lx\n"), (unsigned long) length
);
7486 printf (_(" Version: %#lx\n"), (unsigned long) version
);
7487 printf (_(" Index Offset [String]\n"));
7490 for (idx
= 0; curr
< entries_end
; idx
++)
7493 const unsigned char * string
;
7495 if ((dwarf_vma
) (entries_end
- curr
) < entry_length
)
7496 /* Not enough space to read one entry_length, give up. */
7499 SAFE_BYTE_GET_AND_INC (offset
, curr
, entry_length
, entries_end
);
7501 string
= (const unsigned char *)
7502 fetch_indexed_string (idx
, NULL
, entry_length
, dwo
);
7504 string
= fetch_indirect_string (offset
);
7506 printf (" %8lu %8s %s\n", idx
, dwarf_vmatoa ("x", offset
),
7514 /* Each debug_information[x].range_lists[y] gets this representation for
7515 sorting purposes. */
7519 /* The debug_information[x].range_lists[y] value. */
7520 dwarf_vma ranges_offset
;
7522 /* Original debug_information to find parameters of the data. */
7523 debug_info
*debug_info_p
;
7526 /* Sort struct range_entry in ascending order of its RANGES_OFFSET. */
7529 range_entry_compar (const void *ap
, const void *bp
)
7531 const struct range_entry
*a_re
= (const struct range_entry
*) ap
;
7532 const struct range_entry
*b_re
= (const struct range_entry
*) bp
;
7533 const dwarf_vma a
= a_re
->ranges_offset
;
7534 const dwarf_vma b
= b_re
->ranges_offset
;
7536 return (a
> b
) - (b
> a
);
7540 display_debug_ranges_list (unsigned char *start
, unsigned char *finish
,
7541 unsigned int pointer_size
, unsigned long offset
,
7542 unsigned long base_address
)
7544 while (start
< finish
)
7549 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, finish
);
7550 if (start
>= finish
)
7552 SAFE_SIGNED_BYTE_GET_AND_INC (end
, start
, pointer_size
, finish
);
7554 printf (" %8.8lx ", offset
);
7556 if (begin
== 0 && end
== 0)
7558 printf (_("<End of list>\n"));
7562 /* Check base address specifiers. */
7563 if (is_max_address (begin
, pointer_size
)
7564 && !is_max_address (end
, pointer_size
))
7567 print_dwarf_vma (begin
, pointer_size
);
7568 print_dwarf_vma (end
, pointer_size
);
7569 printf ("(base address)\n");
7573 print_dwarf_vma (begin
+ base_address
, pointer_size
);
7574 print_dwarf_vma (end
+ base_address
, pointer_size
);
7577 fputs (_("(start == end)"), stdout
);
7578 else if (begin
> end
)
7579 fputs (_("(start > end)"), stdout
);
7586 display_debug_rnglists_list (unsigned char *start
, unsigned char *finish
,
7587 unsigned int pointer_size
, unsigned long offset
,
7588 unsigned long base_address
)
7590 unsigned char *next
= start
;
7594 unsigned long off
= offset
+ (start
- next
);
7595 enum dwarf_range_list_entry rlet
;
7596 /* Initialize it due to a false compiler warning. */
7597 dwarf_vma begin
= -1, length
, end
= -1;
7599 if (start
+ 1 > finish
)
7601 warn (_("Range list starting at offset 0x%lx is not terminated.\n"),
7606 printf (" %8.8lx ", off
);
7608 SAFE_BYTE_GET_AND_INC (rlet
, start
, 1, finish
);
7612 case DW_RLE_end_of_list
:
7613 printf (_("<End of list>\n"));
7615 case DW_RLE_base_address
:
7616 SAFE_BYTE_GET_AND_INC (base_address
, start
, pointer_size
, finish
);
7617 print_dwarf_vma (base_address
, pointer_size
);
7618 printf (_("(base address)\n"));
7620 case DW_RLE_start_length
:
7621 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, finish
);
7622 READ_ULEB (length
, start
, finish
);
7623 end
= begin
+ length
;
7625 case DW_RLE_offset_pair
:
7626 READ_ULEB (begin
, start
, finish
);
7627 READ_ULEB (end
, start
, finish
);
7629 case DW_RLE_start_end
:
7630 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, finish
);
7631 SAFE_BYTE_GET_AND_INC (end
, start
, pointer_size
, finish
);
7634 error (_("Invalid range list entry type %d\n"), rlet
);
7635 rlet
= DW_RLE_end_of_list
;
7638 if (rlet
== DW_RLE_end_of_list
)
7640 if (rlet
== DW_RLE_base_address
)
7643 /* Only a DW_RLE_offset_pair needs the base address added. */
7644 if (rlet
== DW_RLE_offset_pair
)
7646 begin
+= base_address
;
7647 end
+= base_address
;
7650 print_dwarf_vma (begin
, pointer_size
);
7651 print_dwarf_vma (end
, pointer_size
);
7654 fputs (_("(start == end)"), stdout
);
7655 else if (begin
> end
)
7656 fputs (_("(start > end)"), stdout
);
7663 display_debug_ranges (struct dwarf_section
*section
,
7664 void *file ATTRIBUTE_UNUSED
)
7666 unsigned char *start
= section
->start
;
7667 unsigned char *last_start
= start
;
7668 unsigned long bytes
= section
->size
;
7669 unsigned char *section_begin
= start
;
7670 unsigned char *finish
= start
+ bytes
;
7671 unsigned int num_range_list
, i
;
7672 struct range_entry
*range_entries
, *range_entry_fill
;
7673 int is_rnglists
= strstr (section
->name
, "debug_rnglists") != NULL
;
7674 /* Initialize it due to a false compiler warning. */
7675 unsigned char address_size
= 0;
7676 dwarf_vma last_offset
= 0;
7680 printf (_("\nThe %s section is empty.\n"), section
->name
);
7686 dwarf_vma initial_length
;
7687 unsigned int initial_length_size
;
7688 unsigned char segment_selector_size
;
7689 unsigned int offset_size
, offset_entry_count
;
7690 unsigned short version
;
7692 /* Get and check the length of the block. */
7693 SAFE_BYTE_GET_AND_INC (initial_length
, start
, 4, finish
);
7695 if (initial_length
== 0xffffffff)
7697 /* This section is 64-bit DWARF 3. */
7698 SAFE_BYTE_GET_AND_INC (initial_length
, start
, 8, finish
);
7700 initial_length_size
= 12;
7705 initial_length_size
= 4;
7708 if (initial_length
+ initial_length_size
> section
->size
)
7710 /* If the length field has a relocation against it, then we should
7711 not complain if it is inaccurate (and probably negative).
7712 It is copied from .debug_line handling code. */
7713 if (reloc_at (section
, (start
- section
->start
) - offset_size
))
7715 initial_length
= (finish
- start
) - initial_length_size
;
7719 warn (_("The length field (0x%lx) in the debug_rnglists header is wrong - the section is too small\n"),
7720 (long) initial_length
);
7725 /* Get and check the version number. */
7726 SAFE_BYTE_GET_AND_INC (version
, start
, 2, finish
);
7730 warn (_("Only DWARF version 5 debug_rnglists info "
7731 "is currently supported.\n"));
7735 SAFE_BYTE_GET_AND_INC (address_size
, start
, 1, finish
);
7737 SAFE_BYTE_GET_AND_INC (segment_selector_size
, start
, 1, finish
);
7738 if (segment_selector_size
!= 0)
7740 warn (_("The %s section contains "
7741 "unsupported segment selector size: %d.\n"),
7742 section
->name
, segment_selector_size
);
7746 SAFE_BYTE_GET_AND_INC (offset_entry_count
, start
, 4, finish
);
7747 if (offset_entry_count
!= 0)
7749 warn (_("The %s section contains "
7750 "unsupported offset entry count: %u.\n"),
7751 section
->name
, offset_entry_count
);
7756 if (load_debug_info (file
) == 0)
7758 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
7764 for (i
= 0; i
< num_debug_info_entries
; i
++)
7766 if (debug_information
[i
].dwarf_version
< 5 && is_rnglists
)
7767 /* Skip .debug_rnglists reference. */
7769 if (debug_information
[i
].dwarf_version
>= 5 && !is_rnglists
)
7770 /* Skip .debug_range reference. */
7772 num_range_list
+= debug_information
[i
].num_range_lists
;
7775 if (num_range_list
== 0)
7777 /* This can happen when the file was compiled with -gsplit-debug
7778 which removes references to range lists from the primary .o file. */
7779 printf (_("No range lists in .debug_info section.\n"));
7783 range_entries
= (struct range_entry
*)
7784 xmalloc (sizeof (*range_entries
) * num_range_list
);
7785 range_entry_fill
= range_entries
;
7787 for (i
= 0; i
< num_debug_info_entries
; i
++)
7789 debug_info
*debug_info_p
= &debug_information
[i
];
7792 if (debug_information
[i
].dwarf_version
< 5 && is_rnglists
)
7793 /* Skip .debug_rnglists reference. */
7795 if (debug_information
[i
].dwarf_version
>= 5 && !is_rnglists
)
7796 /* Skip .debug_range reference. */
7799 for (j
= 0; j
< debug_info_p
->num_range_lists
; j
++)
7801 range_entry_fill
->ranges_offset
= debug_info_p
->range_lists
[j
];
7802 range_entry_fill
->debug_info_p
= debug_info_p
;
7807 qsort (range_entries
, num_range_list
, sizeof (*range_entries
),
7808 range_entry_compar
);
7810 if (dwarf_check
!= 0 && range_entries
[0].ranges_offset
!= 0)
7811 warn (_("Range lists in %s section start at 0x%lx\n"),
7812 section
->name
, (unsigned long) range_entries
[0].ranges_offset
);
7814 introduce (section
, false);
7816 printf (_(" Offset Begin End\n"));
7818 for (i
= 0; i
< num_range_list
; i
++)
7820 struct range_entry
*range_entry
= &range_entries
[i
];
7821 debug_info
*debug_info_p
= range_entry
->debug_info_p
;
7822 unsigned int pointer_size
;
7824 unsigned char *next
;
7825 dwarf_vma base_address
;
7827 pointer_size
= (is_rnglists
? address_size
: debug_info_p
->pointer_size
);
7828 offset
= range_entry
->ranges_offset
;
7829 next
= section_begin
+ offset
;
7830 base_address
= debug_info_p
->base_address
;
7832 /* PR 17512: file: 001-101485-0.001:0.1. */
7833 if (pointer_size
< 2 || pointer_size
> 8)
7835 warn (_("Corrupt pointer size (%d) in debug entry at offset %8.8lx\n"),
7836 pointer_size
, (unsigned long) offset
);
7840 if (next
< section_begin
|| next
>= finish
)
7842 warn (_("Corrupt offset (%#8.8lx) in range entry %u\n"),
7843 (unsigned long) offset
, i
);
7847 /* If multiple DWARF entities reference the same range then we will
7848 have multiple entries in the `range_entries' list for the same
7849 offset. Thanks to the sort above these will all be consecutive in
7850 the `range_entries' list, so we can easily ignore duplicates
7852 if (i
> 0 && last_offset
== offset
)
7854 last_offset
= offset
;
7856 if (dwarf_check
!= 0 && i
> 0)
7859 warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
7860 (unsigned long) (start
- section_begin
),
7861 (unsigned long) (next
- section_begin
), section
->name
);
7862 else if (start
> next
)
7864 if (next
== last_start
)
7866 warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
7867 (unsigned long) (start
- section_begin
),
7868 (unsigned long) (next
- section_begin
), section
->name
);
7875 (is_rnglists
? display_debug_rnglists_list
: display_debug_ranges_list
)
7876 (start
, finish
, pointer_size
, offset
, base_address
);
7880 free (range_entries
);
7885 typedef struct Frame_Chunk
7887 struct Frame_Chunk
*next
;
7888 unsigned char *chunk_start
;
7890 /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */
7891 short int *col_type
;
7894 unsigned int code_factor
;
7898 unsigned int cfa_reg
;
7899 dwarf_vma cfa_offset
;
7901 unsigned char fde_encoding
;
7902 unsigned char cfa_exp
;
7903 unsigned char ptr_size
;
7904 unsigned char segment_size
;
7908 typedef const char *(*dwarf_regname_lookup_ftype
) (unsigned int);
7909 static dwarf_regname_lookup_ftype dwarf_regnames_lookup_func
;
7910 static const char *const *dwarf_regnames
;
7911 static unsigned int dwarf_regnames_count
;
7914 /* A marker for a col_type that means this column was never referenced
7915 in the frame info. */
7916 #define DW_CFA_unreferenced (-1)
7918 /* Return 0 if no more space is needed, 1 if more space is needed,
7919 -1 for invalid reg. */
7922 frame_need_space (Frame_Chunk
*fc
, unsigned int reg
)
7924 unsigned int prev
= fc
->ncols
;
7926 if (reg
< (unsigned int) fc
->ncols
)
7929 if (dwarf_regnames_count
> 0
7930 && reg
> dwarf_regnames_count
)
7933 fc
->ncols
= reg
+ 1;
7934 /* PR 17512: file: 10450-2643-0.004.
7935 If reg == -1 then this can happen... */
7939 /* PR 17512: file: 2844a11d. */
7940 if (fc
->ncols
> 1024 && dwarf_regnames_count
== 0)
7942 error (_("Unfeasibly large register number: %u\n"), reg
);
7944 /* FIXME: 1024 is an arbitrary limit. Increase it if
7945 we ever encounter a valid binary that exceeds it. */
7949 fc
->col_type
= (short int *) xcrealloc (fc
->col_type
, fc
->ncols
,
7950 sizeof (short int));
7951 fc
->col_offset
= (int *) xcrealloc (fc
->col_offset
, fc
->ncols
, sizeof (int));
7952 /* PR 17512: file:002-10025-0.005. */
7953 if (fc
->col_type
== NULL
|| fc
->col_offset
== NULL
)
7955 error (_("Out of memory allocating %u columns in dwarf frame arrays\n"),
7961 while (prev
< fc
->ncols
)
7963 fc
->col_type
[prev
] = DW_CFA_unreferenced
;
7964 fc
->col_offset
[prev
] = 0;
7970 static const char *const dwarf_regnames_i386
[] =
7972 "eax", "ecx", "edx", "ebx", /* 0 - 3 */
7973 "esp", "ebp", "esi", "edi", /* 4 - 7 */
7974 "eip", "eflags", NULL
, /* 8 - 10 */
7975 "st0", "st1", "st2", "st3", /* 11 - 14 */
7976 "st4", "st5", "st6", "st7", /* 15 - 18 */
7977 NULL
, NULL
, /* 19 - 20 */
7978 "xmm0", "xmm1", "xmm2", "xmm3", /* 21 - 24 */
7979 "xmm4", "xmm5", "xmm6", "xmm7", /* 25 - 28 */
7980 "mm0", "mm1", "mm2", "mm3", /* 29 - 32 */
7981 "mm4", "mm5", "mm6", "mm7", /* 33 - 36 */
7982 "fcw", "fsw", "mxcsr", /* 37 - 39 */
7983 "es", "cs", "ss", "ds", "fs", "gs", NULL
, NULL
, /* 40 - 47 */
7984 "tr", "ldtr", /* 48 - 49 */
7985 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 50 - 57 */
7986 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 58 - 65 */
7987 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 66 - 73 */
7988 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 74 - 81 */
7989 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 82 - 89 */
7990 NULL
, NULL
, NULL
, /* 90 - 92 */
7991 "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" /* 93 - 100 */
7994 static const char *const dwarf_regnames_iamcu
[] =
7996 "eax", "ecx", "edx", "ebx", /* 0 - 3 */
7997 "esp", "ebp", "esi", "edi", /* 4 - 7 */
7998 "eip", "eflags", NULL
, /* 8 - 10 */
7999 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 11 - 18 */
8000 NULL
, NULL
, /* 19 - 20 */
8001 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 21 - 28 */
8002 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 29 - 36 */
8003 NULL
, NULL
, NULL
, /* 37 - 39 */
8004 "es", "cs", "ss", "ds", "fs", "gs", NULL
, NULL
, /* 40 - 47 */
8005 "tr", "ldtr", /* 48 - 49 */
8006 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 50 - 57 */
8007 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 58 - 65 */
8008 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 66 - 73 */
8009 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 74 - 81 */
8010 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 82 - 89 */
8011 NULL
, NULL
, NULL
, /* 90 - 92 */
8012 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
/* 93 - 100 */
8016 init_dwarf_regnames_i386 (void)
8018 dwarf_regnames
= dwarf_regnames_i386
;
8019 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_i386
);
8020 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8024 init_dwarf_regnames_iamcu (void)
8026 dwarf_regnames
= dwarf_regnames_iamcu
;
8027 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_iamcu
);
8028 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8031 static const char *const dwarf_regnames_x86_64
[] =
8033 "rax", "rdx", "rcx", "rbx",
8034 "rsi", "rdi", "rbp", "rsp",
8035 "r8", "r9", "r10", "r11",
8036 "r12", "r13", "r14", "r15",
8038 "xmm0", "xmm1", "xmm2", "xmm3",
8039 "xmm4", "xmm5", "xmm6", "xmm7",
8040 "xmm8", "xmm9", "xmm10", "xmm11",
8041 "xmm12", "xmm13", "xmm14", "xmm15",
8042 "st0", "st1", "st2", "st3",
8043 "st4", "st5", "st6", "st7",
8044 "mm0", "mm1", "mm2", "mm3",
8045 "mm4", "mm5", "mm6", "mm7",
8047 "es", "cs", "ss", "ds", "fs", "gs", NULL
, NULL
,
8048 "fs.base", "gs.base", NULL
, NULL
,
8050 "mxcsr", "fcw", "fsw",
8051 "xmm16", "xmm17", "xmm18", "xmm19",
8052 "xmm20", "xmm21", "xmm22", "xmm23",
8053 "xmm24", "xmm25", "xmm26", "xmm27",
8054 "xmm28", "xmm29", "xmm30", "xmm31",
8055 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 83 - 90 */
8056 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 91 - 98 */
8057 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 99 - 106 */
8058 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 107 - 114 */
8059 NULL
, NULL
, NULL
, /* 115 - 117 */
8060 "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7"
8064 init_dwarf_regnames_x86_64 (void)
8066 dwarf_regnames
= dwarf_regnames_x86_64
;
8067 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_x86_64
);
8068 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8071 static const char *const dwarf_regnames_aarch64
[] =
8073 "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7",
8074 "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15",
8075 "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23",
8076 "x24", "x25", "x26", "x27", "x28", "x29", "x30", "sp",
8077 NULL
, "elr", NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
8078 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, "vg", "ffr",
8079 "p0", "p1", "p2", "p3", "p4", "p5", "p6", "p7",
8080 "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15",
8081 "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7",
8082 "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15",
8083 "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23",
8084 "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31",
8085 "z0", "z1", "z2", "z3", "z4", "z5", "z6", "z7",
8086 "z8", "z9", "z10", "z11", "z12", "z13", "z14", "z15",
8087 "z16", "z17", "z18", "z19", "z20", "z21", "z22", "z23",
8088 "z24", "z25", "z26", "z27", "z28", "z29", "z30", "z31",
8092 init_dwarf_regnames_aarch64 (void)
8094 dwarf_regnames
= dwarf_regnames_aarch64
;
8095 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_aarch64
);
8096 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8099 static const char *const dwarf_regnames_s390
[] =
8101 /* Avoid saying "r5 (r5)", so omit the names of r0-r15. */
8102 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
8103 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
8104 "f0", "f2", "f4", "f6", "f1", "f3", "f5", "f7",
8105 "f8", "f10", "f12", "f14", "f9", "f11", "f13", "f15",
8106 "cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7",
8107 "cr8", "cr9", "cr10", "cr11", "cr12", "cr13", "cr14", "cr15",
8108 "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7",
8109 "a8", "a9", "a10", "a11", "a12", "a13", "a14", "a15",
8112 "v16", "v18", "v20", "v22", "v17", "v19", "v21", "v23",
8113 "v24", "v26", "v28", "v30", "v25", "v27", "v29", "v31",
8117 init_dwarf_regnames_s390 (void)
8119 dwarf_regnames
= dwarf_regnames_s390
;
8120 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_s390
);
8121 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8124 static const char *const dwarf_regnames_riscv
[] =
8126 "zero", "ra", "sp", "gp", "tp", "t0", "t1", "t2", /* 0 - 7 */
8127 "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5", /* 8 - 15 */
8128 "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7", /* 16 - 23 */
8129 "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6", /* 24 - 31 */
8130 "ft0", "ft1", "ft2", "ft3", "ft4", "ft5", "ft6", "ft7", /* 32 - 39 */
8131 "fs0", "fs1", /* 40 - 41 */
8132 "fa0", "fa1", "fa2", "fa3", "fa4", "fa5", "fa6", "fa7", /* 42 - 49 */
8133 "fs2", "fs3", "fs4", "fs5", "fs6", "fs7", "fs8", "fs9", /* 50 - 57 */
8134 "fs10", "fs11", /* 58 - 59 */
8135 "ft8", "ft9", "ft10", "ft11" /* 60 - 63 */
8138 /* A RISC-V replacement for REGNAME_INTERNAL_BY_TABLE_ONLY which handles
8139 the large number of CSRs. */
8142 regname_internal_riscv (unsigned int regno
)
8144 const char *name
= NULL
;
8146 /* Lookup in the table first, this covers GPR and FPR. */
8147 if (regno
< ARRAY_SIZE (dwarf_regnames_riscv
))
8148 name
= dwarf_regnames_riscv
[regno
];
8149 else if (regno
>= 4096 && regno
<= 8191)
8151 /* This might be a CSR, these live in a sparse number space from 4096
8152 to 8191 These numbers are defined in the RISC-V ELF ABI
8156 #define DECLARE_CSR(NAME,VALUE,CLASS,DEFINE_VER,ABORT_VER) \
8157 case VALUE + 4096: name = #NAME; break;
8158 #include "opcode/riscv-opc.h"
8163 static char csr_name
[10];
8164 snprintf (csr_name
, sizeof (csr_name
), "csr%d", (regno
- 4096));
8175 init_dwarf_regnames_riscv (void)
8177 dwarf_regnames
= NULL
;
8178 dwarf_regnames_count
= 8192;
8179 dwarf_regnames_lookup_func
= regname_internal_riscv
;
8183 init_dwarf_regnames_by_elf_machine_code (unsigned int e_machine
)
8185 dwarf_regnames_lookup_func
= NULL
;
8190 init_dwarf_regnames_i386 ();
8194 init_dwarf_regnames_iamcu ();
8200 init_dwarf_regnames_x86_64 ();
8204 init_dwarf_regnames_aarch64 ();
8208 init_dwarf_regnames_s390 ();
8212 init_dwarf_regnames_riscv ();
8220 /* Initialize the DWARF register name lookup state based on the
8221 architecture and specific machine type of a BFD. */
8224 init_dwarf_regnames_by_bfd_arch_and_mach (enum bfd_architecture arch
,
8227 dwarf_regnames_lookup_func
= NULL
;
8234 case bfd_mach_x86_64
:
8235 case bfd_mach_x86_64_intel_syntax
:
8236 case bfd_mach_x64_32
:
8237 case bfd_mach_x64_32_intel_syntax
:
8238 init_dwarf_regnames_x86_64 ();
8242 init_dwarf_regnames_i386 ();
8247 case bfd_arch_iamcu
:
8248 init_dwarf_regnames_iamcu ();
8251 case bfd_arch_aarch64
:
8252 init_dwarf_regnames_aarch64();
8256 init_dwarf_regnames_s390 ();
8259 case bfd_arch_riscv
:
8260 init_dwarf_regnames_riscv ();
8269 regname_internal_by_table_only (unsigned int regno
)
8271 if (dwarf_regnames
!= NULL
8272 && regno
< dwarf_regnames_count
8273 && dwarf_regnames
[regno
] != NULL
)
8274 return dwarf_regnames
[regno
];
8280 regname (unsigned int regno
, int name_only_p
)
8282 static char reg
[64];
8284 const char *name
= NULL
;
8286 if (dwarf_regnames_lookup_func
!= NULL
)
8287 name
= dwarf_regnames_lookup_func (regno
);
8293 snprintf (reg
, sizeof (reg
), "r%d (%s)", regno
, name
);
8296 snprintf (reg
, sizeof (reg
), "r%d", regno
);
8301 frame_display_row (Frame_Chunk
*fc
, int *need_col_headers
, unsigned int *max_regs
)
8306 if (*max_regs
!= fc
->ncols
)
8307 *max_regs
= fc
->ncols
;
8309 if (*need_col_headers
)
8311 *need_col_headers
= 0;
8313 printf ("%-*s CFA ", eh_addr_size
* 2, " LOC");
8315 for (r
= 0; r
< *max_regs
; r
++)
8316 if (fc
->col_type
[r
] != DW_CFA_unreferenced
)
8321 printf ("%-5s ", regname (r
, 1));
8327 print_dwarf_vma (fc
->pc_begin
, eh_addr_size
);
8329 strcpy (tmp
, "exp");
8331 sprintf (tmp
, "%s%+d", regname (fc
->cfa_reg
, 1), (int) fc
->cfa_offset
);
8332 printf ("%-8s ", tmp
);
8334 for (r
= 0; r
< fc
->ncols
; r
++)
8336 if (fc
->col_type
[r
] != DW_CFA_unreferenced
)
8338 switch (fc
->col_type
[r
])
8340 case DW_CFA_undefined
:
8343 case DW_CFA_same_value
:
8347 sprintf (tmp
, "c%+d", fc
->col_offset
[r
]);
8349 case DW_CFA_val_offset
:
8350 sprintf (tmp
, "v%+d", fc
->col_offset
[r
]);
8352 case DW_CFA_register
:
8353 sprintf (tmp
, "%s", regname (fc
->col_offset
[r
], 0));
8355 case DW_CFA_expression
:
8356 strcpy (tmp
, "exp");
8358 case DW_CFA_val_expression
:
8359 strcpy (tmp
, "vexp");
8362 strcpy (tmp
, "n/a");
8365 printf ("%-5s ", tmp
);
8371 #define GET(VAR, N) SAFE_BYTE_GET_AND_INC (VAR, start, N, end)
8373 static unsigned char *
8374 read_cie (unsigned char *start
, unsigned char *end
,
8375 Frame_Chunk
**p_cie
, int *p_version
,
8376 bfd_size_type
*p_aug_len
, unsigned char **p_aug
)
8380 unsigned char *augmentation_data
= NULL
;
8381 bfd_size_type augmentation_data_len
= 0;
8384 /* PR 17512: file: 001-228113-0.004. */
8388 fc
= (Frame_Chunk
*) xmalloc (sizeof (Frame_Chunk
));
8389 memset (fc
, 0, sizeof (Frame_Chunk
));
8391 fc
->col_type
= (short int *) xmalloc (sizeof (short int));
8392 fc
->col_offset
= (int *) xmalloc (sizeof (int));
8396 fc
->augmentation
= (char *) start
;
8397 /* PR 17512: file: 001-228113-0.004.
8398 Skip past augmentation name, but avoid running off the end of the data. */
8400 if (* start
++ == '\0')
8404 warn (_("No terminator for augmentation name\n"));
8408 if (strcmp (fc
->augmentation
, "eh") == 0)
8409 start
+= eh_addr_size
;
8413 GET (fc
->ptr_size
, 1);
8414 if (fc
->ptr_size
< 1 || fc
->ptr_size
> 8)
8416 warn (_("Invalid pointer size (%d) in CIE data\n"), fc
->ptr_size
);
8420 GET (fc
->segment_size
, 1);
8421 /* PR 17512: file: e99d2804. */
8422 if (fc
->segment_size
> 8 || fc
->segment_size
+ fc
->ptr_size
> 8)
8424 warn (_("Invalid segment size (%d) in CIE data\n"), fc
->segment_size
);
8428 eh_addr_size
= fc
->ptr_size
;
8432 fc
->ptr_size
= eh_addr_size
;
8433 fc
->segment_size
= 0;
8436 READ_ULEB (fc
->code_factor
, start
, end
);
8437 READ_SLEB (fc
->data_factor
, start
, end
);
8445 READ_ULEB (fc
->ra
, start
, end
);
8448 if (fc
->augmentation
[0] == 'z')
8450 READ_ULEB (augmentation_data_len
, start
, end
);
8451 augmentation_data
= start
;
8452 /* PR 17512: file: 11042-2589-0.004. */
8453 if (augmentation_data_len
> (bfd_size_type
) (end
- start
))
8455 warn (_("Augmentation data too long: 0x%s, expected at most %#lx\n"),
8456 dwarf_vmatoa ("x", augmentation_data_len
),
8457 (unsigned long) (end
- start
));
8460 start
+= augmentation_data_len
;
8463 if (augmentation_data_len
)
8467 unsigned char *qend
;
8469 p
= (unsigned char *) fc
->augmentation
+ 1;
8470 q
= augmentation_data
;
8471 qend
= q
+ augmentation_data_len
;
8473 while (p
< end
&& q
< qend
)
8478 q
+= 1 + size_of_encoded_value (*q
);
8480 fc
->fde_encoding
= *q
++;
8489 /* Note - it is OK if this loop terminates with q < qend.
8490 Padding may have been inserted to align the end of the CIE. */
8495 *p_version
= version
;
8498 *p_aug_len
= augmentation_data_len
;
8499 *p_aug
= augmentation_data
;
8504 free (fc
->col_offset
);
8505 free (fc
->col_type
);
8510 /* Prints out the contents on the DATA array formatted as unsigned bytes.
8511 If do_wide is not enabled, then formats the output to fit into 80 columns.
8512 PRINTED contains the number of characters already written to the current
8516 display_data (bfd_size_type printed
,
8517 const unsigned char * data
,
8518 const bfd_size_type len
)
8520 if (do_wide
|| len
< ((80 - printed
) / 3))
8521 for (printed
= 0; printed
< len
; ++printed
)
8522 printf (" %02x", data
[printed
]);
8525 for (printed
= 0; printed
< len
; ++printed
)
8527 if (printed
% (80 / 3) == 0)
8529 printf (" %02x", data
[printed
]);
8534 /* Prints out the contents on the augmentation data array.
8535 If do_wide is not enabled, then formats the output to fit into 80 columns. */
8538 display_augmentation_data (const unsigned char * data
, const bfd_size_type len
)
8542 i
= printf (_(" Augmentation data: "));
8543 display_data (i
, data
, len
);
8547 display_debug_frames (struct dwarf_section
*section
,
8548 void *file ATTRIBUTE_UNUSED
)
8550 unsigned char *start
= section
->start
;
8551 unsigned char *end
= start
+ section
->size
;
8552 unsigned char *section_start
= start
;
8553 Frame_Chunk
*chunks
= NULL
, *forward_refs
= NULL
;
8554 Frame_Chunk
*remembered_state
= NULL
;
8556 bool is_eh
= strcmp (section
->name
, ".eh_frame") == 0;
8557 unsigned int max_regs
= 0;
8558 const char *bad_reg
= _("bad register: ");
8559 unsigned int saved_eh_addr_size
= eh_addr_size
;
8561 introduce (section
, false);
8565 unsigned char *saved_start
;
8566 unsigned char *block_end
;
8571 int need_col_headers
= 1;
8572 unsigned char *augmentation_data
= NULL
;
8573 bfd_size_type augmentation_data_len
= 0;
8574 unsigned int encoded_ptr_size
= saved_eh_addr_size
;
8575 unsigned int offset_size
;
8576 unsigned int initial_length_size
;
8578 static Frame_Chunk fde_fc
;
8580 saved_start
= start
;
8582 SAFE_BYTE_GET_AND_INC (length
, start
, 4, end
);
8586 printf ("\n%08lx ZERO terminator\n\n",
8587 (unsigned long)(saved_start
- section_start
));
8588 /* Skip any zero terminators that directly follow.
8589 A corrupt section size could have loaded a whole
8590 slew of zero filled memory bytes. eg
8591 PR 17512: file: 070-19381-0.004. */
8592 while (start
< end
&& * start
== 0)
8597 if (length
== 0xffffffff)
8599 SAFE_BYTE_GET_AND_INC (length
, start
, 8, end
);
8601 initial_length_size
= 12;
8606 initial_length_size
= 4;
8609 block_end
= saved_start
+ length
+ initial_length_size
;
8610 if (block_end
> end
|| block_end
< start
)
8612 warn ("Invalid length 0x%s in FDE at %#08lx\n",
8613 dwarf_vmatoa_1 (NULL
, length
, offset_size
),
8614 (unsigned long) (saved_start
- section_start
));
8618 SAFE_BYTE_GET_AND_INC (cie_id
, start
, offset_size
, end
);
8620 if (is_eh
? (cie_id
== 0) : ((offset_size
== 4 && cie_id
== DW_CIE_ID
)
8621 || (offset_size
== 8 && cie_id
== DW64_CIE_ID
)))
8626 start
= read_cie (start
, end
, &cie
, &version
,
8627 &augmentation_data_len
, &augmentation_data
);
8628 /* PR 17512: file: 027-135133-0.005. */
8635 fc
->chunk_start
= saved_start
;
8636 mreg
= max_regs
> 0 ? max_regs
- 1 : 0;
8639 if (frame_need_space (fc
, mreg
) < 0)
8641 if (fc
->fde_encoding
)
8642 encoded_ptr_size
= size_of_encoded_value (fc
->fde_encoding
);
8644 printf ("\n%08lx ", (unsigned long) (saved_start
- section_start
));
8645 print_dwarf_vma (length
, fc
->ptr_size
);
8646 print_dwarf_vma (cie_id
, offset_size
);
8648 if (do_debug_frames_interp
)
8650 printf ("CIE \"%s\" cf=%d df=%d ra=%d\n", fc
->augmentation
,
8651 fc
->code_factor
, fc
->data_factor
, fc
->ra
);
8656 printf (" Version: %d\n", version
);
8657 printf (" Augmentation: \"%s\"\n", fc
->augmentation
);
8660 printf (" Pointer Size: %u\n", fc
->ptr_size
);
8661 printf (" Segment Size: %u\n", fc
->segment_size
);
8663 printf (" Code alignment factor: %u\n", fc
->code_factor
);
8664 printf (" Data alignment factor: %d\n", fc
->data_factor
);
8665 printf (" Return address column: %d\n", fc
->ra
);
8667 if (augmentation_data_len
)
8668 display_augmentation_data (augmentation_data
, augmentation_data_len
);
8675 unsigned char *look_for
;
8676 unsigned long segment_selector
;
8682 dwarf_vma sign
= (dwarf_vma
) 1 << (offset_size
* 8 - 1);
8683 cie_off
= (cie_off
^ sign
) - sign
;
8684 cie_off
= start
- 4 - section_start
- cie_off
;
8687 look_for
= section_start
+ cie_off
;
8688 if (cie_off
<= (dwarf_vma
) (saved_start
- section_start
))
8690 for (cie
= chunks
; cie
; cie
= cie
->next
)
8691 if (cie
->chunk_start
== look_for
)
8694 else if (cie_off
>= section
->size
)
8698 for (cie
= forward_refs
; cie
; cie
= cie
->next
)
8699 if (cie
->chunk_start
== look_for
)
8703 unsigned int off_size
;
8704 unsigned char *cie_scan
;
8706 cie_scan
= look_for
;
8708 SAFE_BYTE_GET_AND_INC (length
, cie_scan
, 4, end
);
8709 if (length
== 0xffffffff)
8711 SAFE_BYTE_GET_AND_INC (length
, cie_scan
, 8, end
);
8718 SAFE_BYTE_GET_AND_INC (c_id
, cie_scan
, off_size
, end
);
8721 : ((off_size
== 4 && c_id
== DW_CIE_ID
)
8722 || (off_size
== 8 && c_id
== DW64_CIE_ID
)))
8727 read_cie (cie_scan
, end
, &cie
, &version
,
8728 &augmentation_data_len
, &augmentation_data
);
8729 /* PR 17512: file: 3450-2098-0.004. */
8732 warn (_("Failed to read CIE information\n"));
8735 cie
->next
= forward_refs
;
8737 cie
->chunk_start
= look_for
;
8738 mreg
= max_regs
> 0 ? max_regs
- 1 : 0;
8741 if (frame_need_space (cie
, mreg
) < 0)
8743 warn (_("Invalid max register\n"));
8746 if (cie
->fde_encoding
)
8748 = size_of_encoded_value (cie
->fde_encoding
);
8755 memset (fc
, 0, sizeof (Frame_Chunk
));
8759 warn ("Invalid CIE pointer 0x%s in FDE at %#08lx\n",
8760 dwarf_vmatoa_1 (NULL
, cie_id
, offset_size
),
8761 (unsigned long) (saved_start
- section_start
));
8763 fc
->col_type
= (short int *) xmalloc (sizeof (short int));
8764 fc
->col_offset
= (int *) xmalloc (sizeof (int));
8765 if (frame_need_space (fc
, max_regs
> 0 ? max_regs
- 1 : 0) < 0)
8767 warn (_("Invalid max register\n"));
8771 fc
->augmentation
= "";
8772 fc
->fde_encoding
= 0;
8773 fc
->ptr_size
= eh_addr_size
;
8774 fc
->segment_size
= 0;
8778 fc
->ncols
= cie
->ncols
;
8779 fc
->col_type
= (short int *) xcmalloc (fc
->ncols
, sizeof (short int));
8780 fc
->col_offset
= (int *) xcmalloc (fc
->ncols
, sizeof (int));
8781 memcpy (fc
->col_type
, cie
->col_type
, fc
->ncols
* sizeof (short int));
8782 memcpy (fc
->col_offset
, cie
->col_offset
, fc
->ncols
* sizeof (int));
8783 fc
->augmentation
= cie
->augmentation
;
8784 fc
->ptr_size
= cie
->ptr_size
;
8785 eh_addr_size
= cie
->ptr_size
;
8786 fc
->segment_size
= cie
->segment_size
;
8787 fc
->code_factor
= cie
->code_factor
;
8788 fc
->data_factor
= cie
->data_factor
;
8789 fc
->cfa_reg
= cie
->cfa_reg
;
8790 fc
->cfa_offset
= cie
->cfa_offset
;
8792 if (frame_need_space (fc
, max_regs
> 0 ? max_regs
- 1: 0) < 0)
8794 warn (_("Invalid max register\n"));
8797 fc
->fde_encoding
= cie
->fde_encoding
;
8800 if (fc
->fde_encoding
)
8801 encoded_ptr_size
= size_of_encoded_value (fc
->fde_encoding
);
8803 segment_selector
= 0;
8804 if (fc
->segment_size
)
8806 if (fc
->segment_size
> sizeof (segment_selector
))
8808 /* PR 17512: file: 9e196b3e. */
8809 warn (_("Probably corrupt segment size: %d - using 4 instead\n"), fc
->segment_size
);
8810 fc
->segment_size
= 4;
8812 SAFE_BYTE_GET_AND_INC (segment_selector
, start
, fc
->segment_size
, end
);
8815 fc
->pc_begin
= get_encoded_value (&start
, fc
->fde_encoding
, section
, end
);
8817 /* FIXME: It appears that sometimes the final pc_range value is
8818 encoded in less than encoded_ptr_size bytes. See the x86_64
8819 run of the "objcopy on compressed debug sections" test for an
8821 SAFE_BYTE_GET_AND_INC (fc
->pc_range
, start
, encoded_ptr_size
, end
);
8823 if (cie
->augmentation
[0] == 'z')
8825 READ_ULEB (augmentation_data_len
, start
, end
);
8826 augmentation_data
= start
;
8827 /* PR 17512 file: 722-8446-0.004 and PR 22386. */
8828 if (augmentation_data_len
> (bfd_size_type
) (end
- start
))
8830 warn (_("Augmentation data too long: 0x%s, "
8831 "expected at most %#lx\n"),
8832 dwarf_vmatoa ("x", augmentation_data_len
),
8833 (unsigned long) (end
- start
));
8835 augmentation_data
= NULL
;
8836 augmentation_data_len
= 0;
8838 start
+= augmentation_data_len
;
8841 printf ("\n%08lx %s %s FDE cie=%08lx pc=",
8842 (unsigned long)(saved_start
- section_start
),
8843 dwarf_vmatoa_1 (NULL
, length
, fc
->ptr_size
),
8844 dwarf_vmatoa_1 (NULL
, cie_id
, offset_size
),
8845 (unsigned long)(cie
->chunk_start
- section_start
));
8847 if (fc
->segment_size
)
8848 printf ("%04lx:", segment_selector
);
8851 dwarf_vmatoa_1 (NULL
, fc
->pc_begin
, fc
->ptr_size
),
8852 dwarf_vmatoa_1 (NULL
, fc
->pc_begin
+ fc
->pc_range
, fc
->ptr_size
));
8854 if (! do_debug_frames_interp
&& augmentation_data_len
)
8856 display_augmentation_data (augmentation_data
, augmentation_data_len
);
8861 /* At this point, fc is the current chunk, cie (if any) is set, and
8862 we're about to interpret instructions for the chunk. */
8863 /* ??? At present we need to do this always, since this sizes the
8864 fc->col_type and fc->col_offset arrays, which we write into always.
8865 We should probably split the interpreted and non-interpreted bits
8866 into two different routines, since there's so much that doesn't
8867 really overlap between them. */
8868 if (1 || do_debug_frames_interp
)
8870 /* Start by making a pass over the chunk, allocating storage
8871 and taking note of what registers are used. */
8872 unsigned char *tmp
= start
;
8874 while (start
< block_end
)
8876 unsigned int reg
, op
, opa
;
8878 unsigned char * new_start
;
8885 /* Warning: if you add any more cases to this switch, be
8886 sure to add them to the corresponding switch below. */
8889 case DW_CFA_advance_loc
:
8892 SKIP_ULEB (start
, end
);
8893 if (frame_need_space (fc
, opa
) >= 0)
8894 fc
->col_type
[opa
] = DW_CFA_undefined
;
8896 case DW_CFA_restore
:
8897 if (frame_need_space (fc
, opa
) >= 0)
8898 fc
->col_type
[opa
] = DW_CFA_undefined
;
8900 case DW_CFA_set_loc
:
8901 start
+= encoded_ptr_size
;
8903 case DW_CFA_advance_loc1
:
8906 case DW_CFA_advance_loc2
:
8909 case DW_CFA_advance_loc4
:
8912 case DW_CFA_offset_extended
:
8913 case DW_CFA_val_offset
:
8914 READ_ULEB (reg
, start
, end
);
8915 SKIP_ULEB (start
, end
);
8916 if (frame_need_space (fc
, reg
) >= 0)
8917 fc
->col_type
[reg
] = DW_CFA_undefined
;
8919 case DW_CFA_restore_extended
:
8920 READ_ULEB (reg
, start
, end
);
8921 if (frame_need_space (fc
, reg
) >= 0)
8922 fc
->col_type
[reg
] = DW_CFA_undefined
;
8924 case DW_CFA_undefined
:
8925 READ_ULEB (reg
, start
, end
);
8926 if (frame_need_space (fc
, reg
) >= 0)
8927 fc
->col_type
[reg
] = DW_CFA_undefined
;
8929 case DW_CFA_same_value
:
8930 READ_ULEB (reg
, start
, end
);
8931 if (frame_need_space (fc
, reg
) >= 0)
8932 fc
->col_type
[reg
] = DW_CFA_undefined
;
8934 case DW_CFA_register
:
8935 READ_ULEB (reg
, start
, end
);
8936 SKIP_ULEB (start
, end
);
8937 if (frame_need_space (fc
, reg
) >= 0)
8938 fc
->col_type
[reg
] = DW_CFA_undefined
;
8940 case DW_CFA_def_cfa
:
8941 SKIP_ULEB (start
, end
);
8942 SKIP_ULEB (start
, end
);
8944 case DW_CFA_def_cfa_register
:
8945 SKIP_ULEB (start
, end
);
8947 case DW_CFA_def_cfa_offset
:
8948 SKIP_ULEB (start
, end
);
8950 case DW_CFA_def_cfa_expression
:
8951 READ_ULEB (temp
, start
, end
);
8952 new_start
= start
+ temp
;
8953 if (new_start
< start
)
8955 warn (_("Corrupt CFA_def expression value: %lu\n"), temp
);
8961 case DW_CFA_expression
:
8962 case DW_CFA_val_expression
:
8963 READ_ULEB (reg
, start
, end
);
8964 READ_ULEB (temp
, start
, end
);
8965 new_start
= start
+ temp
;
8966 if (new_start
< start
)
8968 /* PR 17512: file:306-192417-0.005. */
8969 warn (_("Corrupt CFA expression value: %lu\n"), temp
);
8974 if (frame_need_space (fc
, reg
) >= 0)
8975 fc
->col_type
[reg
] = DW_CFA_undefined
;
8977 case DW_CFA_offset_extended_sf
:
8978 case DW_CFA_val_offset_sf
:
8979 READ_ULEB (reg
, start
, end
);
8980 SKIP_SLEB (start
, end
);
8981 if (frame_need_space (fc
, reg
) >= 0)
8982 fc
->col_type
[reg
] = DW_CFA_undefined
;
8984 case DW_CFA_def_cfa_sf
:
8985 SKIP_ULEB (start
, end
);
8986 SKIP_SLEB (start
, end
);
8988 case DW_CFA_def_cfa_offset_sf
:
8989 SKIP_SLEB (start
, end
);
8991 case DW_CFA_MIPS_advance_loc8
:
8994 case DW_CFA_GNU_args_size
:
8995 SKIP_ULEB (start
, end
);
8997 case DW_CFA_GNU_negative_offset_extended
:
8998 READ_ULEB (reg
, start
, end
);
8999 SKIP_ULEB (start
, end
);
9000 if (frame_need_space (fc
, reg
) >= 0)
9001 fc
->col_type
[reg
] = DW_CFA_undefined
;
9012 /* Now we know what registers are used, make a second pass over
9013 the chunk, this time actually printing out the info. */
9015 while (start
< block_end
)
9017 unsigned char * tmp
;
9019 unsigned long ul
, roffs
;
9020 /* Note: It is tempting to use an unsigned long for 'reg' but there
9021 are various functions, notably frame_space_needed() that assume that
9022 reg is an unsigned int. */
9027 const char *reg_prefix
= "";
9034 /* Make a note if something other than DW_CFA_nop happens. */
9035 if (op
!= DW_CFA_nop
)
9038 /* Warning: if you add any more cases to this switch, be
9039 sure to add them to the corresponding switch above. */
9042 case DW_CFA_advance_loc
:
9043 if (do_debug_frames_interp
)
9044 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9046 printf (" DW_CFA_advance_loc: %d to %s\n",
9047 opa
* fc
->code_factor
,
9048 dwarf_vmatoa_1 (NULL
,
9049 fc
->pc_begin
+ opa
* fc
->code_factor
,
9051 fc
->pc_begin
+= opa
* fc
->code_factor
;
9055 READ_ULEB (roffs
, start
, end
);
9056 if (opa
>= (unsigned int) fc
->ncols
)
9057 reg_prefix
= bad_reg
;
9058 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9059 printf (" DW_CFA_offset: %s%s at cfa%+ld\n",
9060 reg_prefix
, regname (opa
, 0),
9061 roffs
* fc
->data_factor
);
9062 if (*reg_prefix
== '\0')
9064 fc
->col_type
[opa
] = DW_CFA_offset
;
9065 fc
->col_offset
[opa
] = roffs
* fc
->data_factor
;
9069 case DW_CFA_restore
:
9070 if (opa
>= (unsigned int) fc
->ncols
)
9071 reg_prefix
= bad_reg
;
9072 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9073 printf (" DW_CFA_restore: %s%s\n",
9074 reg_prefix
, regname (opa
, 0));
9075 if (*reg_prefix
!= '\0')
9078 if (opa
>= (unsigned int) cie
->ncols
9079 || (do_debug_frames_interp
9080 && cie
->col_type
[opa
] == DW_CFA_unreferenced
))
9082 fc
->col_type
[opa
] = DW_CFA_undefined
;
9083 fc
->col_offset
[opa
] = 0;
9087 fc
->col_type
[opa
] = cie
->col_type
[opa
];
9088 fc
->col_offset
[opa
] = cie
->col_offset
[opa
];
9092 case DW_CFA_set_loc
:
9093 vma
= get_encoded_value (&start
, fc
->fde_encoding
, section
, block_end
);
9094 if (do_debug_frames_interp
)
9095 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9097 printf (" DW_CFA_set_loc: %s\n",
9098 dwarf_vmatoa_1 (NULL
, vma
, fc
->ptr_size
));
9102 case DW_CFA_advance_loc1
:
9103 SAFE_BYTE_GET_AND_INC (ofs
, start
, 1, end
);
9104 if (do_debug_frames_interp
)
9105 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9107 printf (" DW_CFA_advance_loc1: %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_loc2
:
9116 SAFE_BYTE_GET_AND_INC (ofs
, start
, 2, block_end
);
9117 if (do_debug_frames_interp
)
9118 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9120 printf (" DW_CFA_advance_loc2: %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_advance_loc4
:
9129 SAFE_BYTE_GET_AND_INC (ofs
, start
, 4, block_end
);
9130 if (do_debug_frames_interp
)
9131 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9133 printf (" DW_CFA_advance_loc4: %ld to %s\n",
9134 (unsigned long) (ofs
* fc
->code_factor
),
9135 dwarf_vmatoa_1 (NULL
,
9136 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9138 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9141 case DW_CFA_offset_extended
:
9142 READ_ULEB (reg
, start
, end
);
9143 READ_ULEB (roffs
, start
, end
);
9144 if (reg
>= (unsigned int) fc
->ncols
)
9145 reg_prefix
= bad_reg
;
9146 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9147 printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n",
9148 reg_prefix
, regname (reg
, 0),
9149 roffs
* fc
->data_factor
);
9150 if (*reg_prefix
== '\0')
9152 fc
->col_type
[reg
] = DW_CFA_offset
;
9153 fc
->col_offset
[reg
] = roffs
* fc
->data_factor
;
9157 case DW_CFA_val_offset
:
9158 READ_ULEB (reg
, start
, end
);
9159 READ_ULEB (roffs
, start
, end
);
9160 if (reg
>= (unsigned int) fc
->ncols
)
9161 reg_prefix
= bad_reg
;
9162 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9163 printf (" DW_CFA_val_offset: %s%s is cfa%+ld\n",
9164 reg_prefix
, regname (reg
, 0),
9165 roffs
* fc
->data_factor
);
9166 if (*reg_prefix
== '\0')
9168 fc
->col_type
[reg
] = DW_CFA_val_offset
;
9169 fc
->col_offset
[reg
] = roffs
* fc
->data_factor
;
9173 case DW_CFA_restore_extended
:
9174 READ_ULEB (reg
, start
, end
);
9175 if (reg
>= (unsigned int) fc
->ncols
)
9176 reg_prefix
= bad_reg
;
9177 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9178 printf (" DW_CFA_restore_extended: %s%s\n",
9179 reg_prefix
, regname (reg
, 0));
9180 if (*reg_prefix
!= '\0')
9183 if (reg
>= (unsigned int) cie
->ncols
)
9185 fc
->col_type
[reg
] = DW_CFA_undefined
;
9186 fc
->col_offset
[reg
] = 0;
9190 fc
->col_type
[reg
] = cie
->col_type
[reg
];
9191 fc
->col_offset
[reg
] = cie
->col_offset
[reg
];
9195 case DW_CFA_undefined
:
9196 READ_ULEB (reg
, start
, end
);
9197 if (reg
>= (unsigned int) fc
->ncols
)
9198 reg_prefix
= bad_reg
;
9199 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9200 printf (" DW_CFA_undefined: %s%s\n",
9201 reg_prefix
, regname (reg
, 0));
9202 if (*reg_prefix
== '\0')
9204 fc
->col_type
[reg
] = DW_CFA_undefined
;
9205 fc
->col_offset
[reg
] = 0;
9209 case DW_CFA_same_value
:
9210 READ_ULEB (reg
, start
, end
);
9211 if (reg
>= (unsigned int) fc
->ncols
)
9212 reg_prefix
= bad_reg
;
9213 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9214 printf (" DW_CFA_same_value: %s%s\n",
9215 reg_prefix
, regname (reg
, 0));
9216 if (*reg_prefix
== '\0')
9218 fc
->col_type
[reg
] = DW_CFA_same_value
;
9219 fc
->col_offset
[reg
] = 0;
9223 case DW_CFA_register
:
9224 READ_ULEB (reg
, start
, end
);
9225 READ_ULEB (roffs
, start
, end
);
9226 if (reg
>= (unsigned int) fc
->ncols
)
9227 reg_prefix
= bad_reg
;
9228 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9230 printf (" DW_CFA_register: %s%s in ",
9231 reg_prefix
, regname (reg
, 0));
9232 puts (regname (roffs
, 0));
9234 if (*reg_prefix
== '\0')
9236 fc
->col_type
[reg
] = DW_CFA_register
;
9237 fc
->col_offset
[reg
] = roffs
;
9241 case DW_CFA_remember_state
:
9242 if (! do_debug_frames_interp
)
9243 printf (" DW_CFA_remember_state\n");
9244 rs
= (Frame_Chunk
*) xmalloc (sizeof (Frame_Chunk
));
9245 rs
->cfa_offset
= fc
->cfa_offset
;
9246 rs
->cfa_reg
= fc
->cfa_reg
;
9248 rs
->cfa_exp
= fc
->cfa_exp
;
9249 rs
->ncols
= fc
->ncols
;
9250 rs
->col_type
= (short int *) xcmalloc (rs
->ncols
,
9251 sizeof (* rs
->col_type
));
9252 rs
->col_offset
= (int *) xcmalloc (rs
->ncols
, sizeof (* rs
->col_offset
));
9253 memcpy (rs
->col_type
, fc
->col_type
, rs
->ncols
* sizeof (* fc
->col_type
));
9254 memcpy (rs
->col_offset
, fc
->col_offset
, rs
->ncols
* sizeof (* fc
->col_offset
));
9255 rs
->next
= remembered_state
;
9256 remembered_state
= rs
;
9259 case DW_CFA_restore_state
:
9260 if (! do_debug_frames_interp
)
9261 printf (" DW_CFA_restore_state\n");
9262 rs
= remembered_state
;
9265 remembered_state
= rs
->next
;
9266 fc
->cfa_offset
= rs
->cfa_offset
;
9267 fc
->cfa_reg
= rs
->cfa_reg
;
9269 fc
->cfa_exp
= rs
->cfa_exp
;
9270 if (frame_need_space (fc
, rs
->ncols
- 1) < 0)
9272 warn (_("Invalid column number in saved frame state\n"));
9276 memcpy (fc
->col_type
, rs
->col_type
, rs
->ncols
* sizeof (* rs
->col_type
));
9277 memcpy (fc
->col_offset
, rs
->col_offset
,
9278 rs
->ncols
* sizeof (* rs
->col_offset
));
9279 free (rs
->col_type
);
9280 free (rs
->col_offset
);
9283 else if (do_debug_frames_interp
)
9284 printf ("Mismatched DW_CFA_restore_state\n");
9287 case DW_CFA_def_cfa
:
9288 READ_ULEB (fc
->cfa_reg
, start
, end
);
9289 READ_ULEB (fc
->cfa_offset
, start
, end
);
9291 if (! do_debug_frames_interp
)
9292 printf (" DW_CFA_def_cfa: %s ofs %d\n",
9293 regname (fc
->cfa_reg
, 0), (int) fc
->cfa_offset
);
9296 case DW_CFA_def_cfa_register
:
9297 READ_ULEB (fc
->cfa_reg
, start
, end
);
9299 if (! do_debug_frames_interp
)
9300 printf (" DW_CFA_def_cfa_register: %s\n",
9301 regname (fc
->cfa_reg
, 0));
9304 case DW_CFA_def_cfa_offset
:
9305 READ_ULEB (fc
->cfa_offset
, start
, end
);
9306 if (! do_debug_frames_interp
)
9307 printf (" DW_CFA_def_cfa_offset: %d\n", (int) fc
->cfa_offset
);
9311 if (! do_debug_frames_interp
)
9312 printf (" DW_CFA_nop\n");
9315 case DW_CFA_def_cfa_expression
:
9316 READ_ULEB (ul
, start
, end
);
9317 if (start
>= block_end
|| ul
> (unsigned long) (block_end
- start
))
9319 printf (_(" DW_CFA_def_cfa_expression: <corrupt len %lu>\n"), ul
);
9322 if (! do_debug_frames_interp
)
9324 printf (" DW_CFA_def_cfa_expression (");
9325 decode_location_expression (start
, eh_addr_size
, 0, -1,
9333 case DW_CFA_expression
:
9334 READ_ULEB (reg
, start
, end
);
9335 READ_ULEB (ul
, start
, end
);
9336 if (reg
>= (unsigned int) fc
->ncols
)
9337 reg_prefix
= bad_reg
;
9338 /* PR 17512: file: 069-133014-0.006. */
9339 /* PR 17512: file: 98c02eb4. */
9341 if (start
>= block_end
|| tmp
> block_end
|| tmp
< start
)
9343 printf (_(" DW_CFA_expression: <corrupt len %lu>\n"), ul
);
9346 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9348 printf (" DW_CFA_expression: %s%s (",
9349 reg_prefix
, regname (reg
, 0));
9350 decode_location_expression (start
, eh_addr_size
, 0, -1,
9354 if (*reg_prefix
== '\0')
9355 fc
->col_type
[reg
] = DW_CFA_expression
;
9359 case DW_CFA_val_expression
:
9360 READ_ULEB (reg
, start
, end
);
9361 READ_ULEB (ul
, start
, end
);
9362 if (reg
>= (unsigned int) fc
->ncols
)
9363 reg_prefix
= bad_reg
;
9365 if (start
>= block_end
|| tmp
> block_end
|| tmp
< start
)
9367 printf (" DW_CFA_val_expression: <corrupt len %lu>\n", ul
);
9370 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9372 printf (" DW_CFA_val_expression: %s%s (",
9373 reg_prefix
, regname (reg
, 0));
9374 decode_location_expression (start
, eh_addr_size
, 0, -1,
9378 if (*reg_prefix
== '\0')
9379 fc
->col_type
[reg
] = DW_CFA_val_expression
;
9383 case DW_CFA_offset_extended_sf
:
9384 READ_ULEB (reg
, start
, end
);
9385 READ_SLEB (l
, start
, end
);
9386 if (frame_need_space (fc
, reg
) < 0)
9387 reg_prefix
= bad_reg
;
9388 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9389 printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n",
9390 reg_prefix
, regname (reg
, 0),
9391 (long)(l
* fc
->data_factor
));
9392 if (*reg_prefix
== '\0')
9394 fc
->col_type
[reg
] = DW_CFA_offset
;
9395 fc
->col_offset
[reg
] = l
* fc
->data_factor
;
9399 case DW_CFA_val_offset_sf
:
9400 READ_ULEB (reg
, start
, end
);
9401 READ_SLEB (l
, start
, end
);
9402 if (frame_need_space (fc
, reg
) < 0)
9403 reg_prefix
= bad_reg
;
9404 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9405 printf (" DW_CFA_val_offset_sf: %s%s is cfa%+ld\n",
9406 reg_prefix
, regname (reg
, 0),
9407 (long)(l
* fc
->data_factor
));
9408 if (*reg_prefix
== '\0')
9410 fc
->col_type
[reg
] = DW_CFA_val_offset
;
9411 fc
->col_offset
[reg
] = l
* fc
->data_factor
;
9415 case DW_CFA_def_cfa_sf
:
9416 READ_ULEB (fc
->cfa_reg
, start
, end
);
9417 READ_ULEB (fc
->cfa_offset
, start
, end
);
9418 fc
->cfa_offset
= fc
->cfa_offset
* fc
->data_factor
;
9420 if (! do_debug_frames_interp
)
9421 printf (" DW_CFA_def_cfa_sf: %s ofs %d\n",
9422 regname (fc
->cfa_reg
, 0), (int) fc
->cfa_offset
);
9425 case DW_CFA_def_cfa_offset_sf
:
9426 READ_ULEB (fc
->cfa_offset
, start
, end
);
9427 fc
->cfa_offset
*= fc
->data_factor
;
9428 if (! do_debug_frames_interp
)
9429 printf (" DW_CFA_def_cfa_offset_sf: %d\n", (int) fc
->cfa_offset
);
9432 case DW_CFA_MIPS_advance_loc8
:
9433 SAFE_BYTE_GET_AND_INC (ofs
, start
, 8, block_end
);
9434 if (do_debug_frames_interp
)
9435 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9437 printf (" DW_CFA_MIPS_advance_loc8: %ld to %s\n",
9438 (unsigned long) (ofs
* fc
->code_factor
),
9439 dwarf_vmatoa_1 (NULL
,
9440 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9442 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9445 case DW_CFA_GNU_window_save
:
9446 if (! do_debug_frames_interp
)
9447 printf (" DW_CFA_GNU_window_save\n");
9450 case DW_CFA_GNU_args_size
:
9451 READ_ULEB (ul
, start
, end
);
9452 if (! do_debug_frames_interp
)
9453 printf (" DW_CFA_GNU_args_size: %ld\n", ul
);
9456 case DW_CFA_GNU_negative_offset_extended
:
9457 READ_ULEB (reg
, start
, end
);
9458 READ_SLEB (l
, start
, end
);
9460 if (frame_need_space (fc
, reg
) < 0)
9461 reg_prefix
= bad_reg
;
9462 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9463 printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n",
9464 reg_prefix
, regname (reg
, 0),
9465 (long)(l
* fc
->data_factor
));
9466 if (*reg_prefix
== '\0')
9468 fc
->col_type
[reg
] = DW_CFA_offset
;
9469 fc
->col_offset
[reg
] = l
* fc
->data_factor
;
9474 if (op
>= DW_CFA_lo_user
&& op
<= DW_CFA_hi_user
)
9475 printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op
);
9477 warn (_("Unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op
);
9482 /* Interpret the CFA - as long as it is not completely full of NOPs. */
9483 if (do_debug_frames_interp
&& ! all_nops
)
9484 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9486 if (fde_fc
.col_type
!= NULL
)
9488 free (fde_fc
.col_type
);
9489 fde_fc
.col_type
= NULL
;
9491 if (fde_fc
.col_offset
!= NULL
)
9493 free (fde_fc
.col_offset
);
9494 fde_fc
.col_offset
= NULL
;
9498 eh_addr_size
= saved_eh_addr_size
;
9503 while (remembered_state
!= NULL
)
9505 rs
= remembered_state
;
9506 remembered_state
= rs
->next
;
9507 free (rs
->col_type
);
9508 free (rs
->col_offset
);
9509 rs
->next
= NULL
; /* Paranoia. */
9513 while (chunks
!= NULL
)
9517 free (rs
->col_type
);
9518 free (rs
->col_offset
);
9519 rs
->next
= NULL
; /* Paranoia. */
9523 while (forward_refs
!= NULL
)
9526 forward_refs
= rs
->next
;
9527 free (rs
->col_type
);
9528 free (rs
->col_offset
);
9529 rs
->next
= NULL
; /* Paranoia. */
9539 display_debug_names (struct dwarf_section
*section
, void *file
)
9541 unsigned char *hdrptr
= section
->start
;
9542 dwarf_vma unit_length
;
9543 unsigned char *unit_start
;
9544 const unsigned char *const section_end
= section
->start
+ section
->size
;
9545 unsigned char *unit_end
;
9547 introduce (section
, false);
9549 load_debug_section_with_follow (str
, file
);
9551 for (; hdrptr
< section_end
; hdrptr
= unit_end
)
9553 unsigned int offset_size
;
9554 uint16_t dwarf_version
, padding
;
9555 uint32_t comp_unit_count
, local_type_unit_count
, foreign_type_unit_count
;
9556 uint32_t bucket_count
, name_count
, abbrev_table_size
;
9557 uint32_t augmentation_string_size
;
9559 unsigned long sec_off
;
9560 bool augmentation_printable
;
9561 const char *augmentation_string
;
9563 unit_start
= hdrptr
;
9565 /* Get and check the length of the block. */
9566 SAFE_BYTE_GET_AND_INC (unit_length
, hdrptr
, 4, section_end
);
9568 if (unit_length
== 0xffffffff)
9570 /* This section is 64-bit DWARF. */
9571 SAFE_BYTE_GET_AND_INC (unit_length
, hdrptr
, 8, section_end
);
9576 unit_end
= hdrptr
+ unit_length
;
9578 sec_off
= hdrptr
- section
->start
;
9579 if (sec_off
+ unit_length
< sec_off
9580 || sec_off
+ unit_length
> section
->size
)
9582 warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
9584 (unsigned long) (unit_start
- section
->start
),
9585 dwarf_vmatoa ("x", unit_length
));
9589 /* Get and check the version number. */
9590 SAFE_BYTE_GET_AND_INC (dwarf_version
, hdrptr
, 2, unit_end
);
9591 printf (_("Version %ld\n"), (long) dwarf_version
);
9593 /* Prior versions did not exist, and future versions may not be
9594 backwards compatible. */
9595 if (dwarf_version
!= 5)
9597 warn (_("Only DWARF version 5 .debug_names "
9598 "is currently supported.\n"));
9602 SAFE_BYTE_GET_AND_INC (padding
, hdrptr
, 2, unit_end
);
9604 warn (_("Padding field of .debug_names must be 0 (found 0x%x)\n"),
9607 SAFE_BYTE_GET_AND_INC (comp_unit_count
, hdrptr
, 4, unit_end
);
9608 if (comp_unit_count
== 0)
9609 warn (_("Compilation unit count must be >= 1 in .debug_names\n"));
9611 SAFE_BYTE_GET_AND_INC (local_type_unit_count
, hdrptr
, 4, unit_end
);
9612 SAFE_BYTE_GET_AND_INC (foreign_type_unit_count
, hdrptr
, 4, unit_end
);
9613 SAFE_BYTE_GET_AND_INC (bucket_count
, hdrptr
, 4, unit_end
);
9614 SAFE_BYTE_GET_AND_INC (name_count
, hdrptr
, 4, unit_end
);
9615 SAFE_BYTE_GET_AND_INC (abbrev_table_size
, hdrptr
, 4, unit_end
);
9617 SAFE_BYTE_GET_AND_INC (augmentation_string_size
, hdrptr
, 4, unit_end
);
9618 if (augmentation_string_size
% 4 != 0)
9620 warn (_("Augmentation string length %u must be rounded up "
9621 "to a multiple of 4 in .debug_names.\n"),
9622 augmentation_string_size
);
9623 augmentation_string_size
+= (-augmentation_string_size
) & 3;
9626 printf (_("Augmentation string:"));
9628 augmentation_printable
= true;
9629 augmentation_string
= (const char *) hdrptr
;
9631 for (i
= 0; i
< augmentation_string_size
; i
++)
9635 SAFE_BYTE_GET_AND_INC (uc
, hdrptr
, 1, unit_end
);
9636 printf (" %02x", uc
);
9638 if (uc
!= 0 && !ISPRINT (uc
))
9639 augmentation_printable
= false;
9642 if (augmentation_printable
)
9646 i
< augmentation_string_size
&& augmentation_string
[i
];
9648 putchar (augmentation_string
[i
]);
9653 printf (_("CU table:\n"));
9654 for (i
= 0; i
< comp_unit_count
; i
++)
9658 SAFE_BYTE_GET_AND_INC (cu_offset
, hdrptr
, offset_size
, unit_end
);
9659 printf (_("[%3u] 0x%lx\n"), i
, (unsigned long) cu_offset
);
9663 printf (_("TU table:\n"));
9664 for (i
= 0; i
< local_type_unit_count
; i
++)
9668 SAFE_BYTE_GET_AND_INC (tu_offset
, hdrptr
, offset_size
, unit_end
);
9669 printf (_("[%3u] 0x%lx\n"), i
, (unsigned long) tu_offset
);
9673 printf (_("Foreign TU table:\n"));
9674 for (i
= 0; i
< foreign_type_unit_count
; i
++)
9678 SAFE_BYTE_GET_AND_INC (signature
, hdrptr
, 8, unit_end
);
9679 printf (_("[%3u] "), i
);
9680 print_dwarf_vma (signature
, 8);
9685 const uint32_t *const hash_table_buckets
= (uint32_t *) hdrptr
;
9686 hdrptr
+= bucket_count
* sizeof (uint32_t);
9687 const uint32_t *const hash_table_hashes
= (uint32_t *) hdrptr
;
9688 hdrptr
+= name_count
* sizeof (uint32_t);
9689 unsigned char *const name_table_string_offsets
= hdrptr
;
9690 hdrptr
+= name_count
* offset_size
;
9691 unsigned char *const name_table_entry_offsets
= hdrptr
;
9692 hdrptr
+= name_count
* offset_size
;
9693 unsigned char *const abbrev_table
= hdrptr
;
9694 hdrptr
+= abbrev_table_size
;
9695 const unsigned char *const abbrev_table_end
= hdrptr
;
9696 unsigned char *const entry_pool
= hdrptr
;
9697 if (hdrptr
> unit_end
)
9699 warn (_("Entry pool offset (0x%lx) exceeds unit size 0x%lx "
9700 "for unit 0x%lx in the debug_names\n"),
9701 (long) (hdrptr
- section
->start
),
9702 (long) (unit_end
- section
->start
),
9703 (long) (unit_start
- section
->start
));
9707 size_t buckets_filled
= 0;
9709 for (bucketi
= 0; bucketi
< bucket_count
; bucketi
++)
9711 const uint32_t bucket
= hash_table_buckets
[bucketi
];
9716 printf (ngettext ("Used %zu of %lu bucket.\n",
9717 "Used %zu of %lu buckets.\n",
9719 buckets_filled
, (unsigned long) bucket_count
);
9721 uint32_t hash_prev
= 0;
9722 size_t hash_clash_count
= 0;
9723 size_t longest_clash
= 0;
9724 size_t this_length
= 0;
9726 for (hashi
= 0; hashi
< name_count
; hashi
++)
9728 const uint32_t hash_this
= hash_table_hashes
[hashi
];
9732 if (hash_prev
% bucket_count
== hash_this
% bucket_count
)
9736 longest_clash
= MAX (longest_clash
, this_length
);
9741 hash_prev
= hash_this
;
9743 printf (_("Out of %lu items there are %zu bucket clashes"
9744 " (longest of %zu entries).\n"),
9745 (unsigned long) name_count
, hash_clash_count
, longest_clash
);
9746 assert (name_count
== buckets_filled
+ hash_clash_count
);
9748 struct abbrev_lookup_entry
9750 dwarf_vma abbrev_tag
;
9751 unsigned char *abbrev_lookup_ptr
;
9753 struct abbrev_lookup_entry
*abbrev_lookup
= NULL
;
9754 size_t abbrev_lookup_used
= 0;
9755 size_t abbrev_lookup_allocated
= 0;
9757 unsigned char *abbrevptr
= abbrev_table
;
9760 dwarf_vma abbrev_tag
;
9762 READ_ULEB (abbrev_tag
, abbrevptr
, abbrev_table_end
);
9763 if (abbrev_tag
== 0)
9765 if (abbrev_lookup_used
== abbrev_lookup_allocated
)
9767 abbrev_lookup_allocated
= MAX (0x100,
9768 abbrev_lookup_allocated
* 2);
9769 abbrev_lookup
= xrealloc (abbrev_lookup
,
9770 (abbrev_lookup_allocated
9771 * sizeof (*abbrev_lookup
)));
9773 assert (abbrev_lookup_used
< abbrev_lookup_allocated
);
9774 struct abbrev_lookup_entry
*entry
;
9775 for (entry
= abbrev_lookup
;
9776 entry
< abbrev_lookup
+ abbrev_lookup_used
;
9778 if (entry
->abbrev_tag
== abbrev_tag
)
9780 warn (_("Duplicate abbreviation tag %lu "
9781 "in unit 0x%lx in the debug_names\n"),
9782 (long) abbrev_tag
, (long) (unit_start
- section
->start
));
9785 entry
= &abbrev_lookup
[abbrev_lookup_used
++];
9786 entry
->abbrev_tag
= abbrev_tag
;
9787 entry
->abbrev_lookup_ptr
= abbrevptr
;
9789 /* Skip DWARF tag. */
9790 SKIP_ULEB (abbrevptr
, abbrev_table_end
);
9793 dwarf_vma xindex
, form
;
9795 READ_ULEB (xindex
, abbrevptr
, abbrev_table_end
);
9796 READ_ULEB (form
, abbrevptr
, abbrev_table_end
);
9797 if (xindex
== 0 && form
== 0)
9802 printf (_("\nSymbol table:\n"));
9804 for (namei
= 0; namei
< name_count
; ++namei
)
9806 uint64_t string_offset
, entry_offset
;
9809 p
= name_table_string_offsets
+ namei
* offset_size
;
9810 SAFE_BYTE_GET (string_offset
, p
, offset_size
, unit_end
);
9811 p
= name_table_entry_offsets
+ namei
* offset_size
;
9812 SAFE_BYTE_GET (entry_offset
, p
, offset_size
, unit_end
);
9814 printf ("[%3u] #%08x %s:", namei
, hash_table_hashes
[namei
],
9815 fetch_indirect_string (string_offset
));
9817 unsigned char *entryptr
= entry_pool
+ entry_offset
;
9819 /* We need to scan first whether there is a single or multiple
9820 entries. TAGNO is -2 for the first entry, it is -1 for the
9821 initial tag read of the second entry, then it becomes 0 for the
9822 first entry for real printing etc. */
9824 /* Initialize it due to a false compiler warning. */
9825 dwarf_vma second_abbrev_tag
= -1;
9828 dwarf_vma abbrev_tag
;
9829 dwarf_vma dwarf_tag
;
9830 const struct abbrev_lookup_entry
*entry
;
9832 READ_ULEB (abbrev_tag
, entryptr
, unit_end
);
9835 second_abbrev_tag
= abbrev_tag
;
9837 entryptr
= entry_pool
+ entry_offset
;
9840 if (abbrev_tag
== 0)
9844 (tagno
== 0 && second_abbrev_tag
== 0 ? " " : "\n\t"),
9845 (unsigned long) abbrev_tag
);
9847 for (entry
= abbrev_lookup
;
9848 entry
< abbrev_lookup
+ abbrev_lookup_used
;
9850 if (entry
->abbrev_tag
== abbrev_tag
)
9852 if (entry
>= abbrev_lookup
+ abbrev_lookup_used
)
9854 warn (_("Undefined abbreviation tag %lu "
9855 "in unit 0x%lx in the debug_names\n"),
9857 (long) (unit_start
- section
->start
));
9860 abbrevptr
= entry
->abbrev_lookup_ptr
;
9861 READ_ULEB (dwarf_tag
, abbrevptr
, abbrev_table_end
);
9863 printf (" %s", get_TAG_name (dwarf_tag
));
9866 dwarf_vma xindex
, form
;
9868 READ_ULEB (xindex
, abbrevptr
, abbrev_table_end
);
9869 READ_ULEB (form
, abbrevptr
, abbrev_table_end
);
9870 if (xindex
== 0 && form
== 0)
9874 printf (" %s", get_IDX_name (xindex
));
9875 entryptr
= read_and_display_attr_value (0, form
, 0,
9876 unit_start
, entryptr
, unit_end
,
9878 dwarf_version
, NULL
,
9885 printf (_(" <no entries>"));
9889 free (abbrev_lookup
);
9896 display_debug_links (struct dwarf_section
* section
,
9897 void * file ATTRIBUTE_UNUSED
)
9899 const unsigned char * filename
;
9900 unsigned int filelen
;
9902 introduce (section
, false);
9904 /* The .gnu_debuglink section is formatted as:
9905 (c-string) Filename.
9906 (padding) If needed to reach a 4 byte boundary.
9907 (uint32_t) CRC32 value.
9909 The .gun_debugaltlink section is formatted as:
9910 (c-string) Filename.
9911 (binary) Build-ID. */
9913 filename
= section
->start
;
9914 filelen
= strnlen ((const char *) filename
, section
->size
);
9915 if (filelen
== section
->size
)
9917 warn (_("The debuglink filename is corrupt/missing\n"));
9921 printf (_(" Separate debug info file: %s\n"), filename
);
9923 if (startswith (section
->name
, ".gnu_debuglink"))
9926 unsigned int crc_offset
;
9928 crc_offset
= filelen
+ 1;
9929 crc_offset
= (crc_offset
+ 3) & ~3;
9930 if (crc_offset
+ 4 > section
->size
)
9932 warn (_("CRC offset missing/truncated\n"));
9936 crc32
= byte_get (filename
+ crc_offset
, 4);
9938 printf (_(" CRC value: %#x\n"), crc32
);
9940 if (crc_offset
+ 4 < section
->size
)
9942 warn (_("There are %#lx extraneous bytes at the end of the section\n"),
9943 (long)(section
->size
- (crc_offset
+ 4)));
9947 else /* startswith (section->name, ".gnu_debugaltlink") */
9949 const unsigned char * build_id
= section
->start
+ filelen
+ 1;
9950 bfd_size_type build_id_len
= section
->size
- (filelen
+ 1);
9951 bfd_size_type printed
;
9953 /* FIXME: Should we support smaller build-id notes ? */
9954 if (build_id_len
< 0x14)
9956 warn (_("Build-ID is too short (%#lx bytes)\n"), (long) build_id_len
);
9960 printed
= printf (_(" Build-ID (%#lx bytes):"), (long) build_id_len
);
9961 display_data (printed
, build_id
, build_id_len
);
9970 display_gdb_index (struct dwarf_section
*section
,
9971 void *file ATTRIBUTE_UNUSED
)
9973 unsigned char *start
= section
->start
;
9975 uint32_t cu_list_offset
, tu_list_offset
;
9976 uint32_t address_table_offset
, symbol_table_offset
, constant_pool_offset
;
9977 unsigned int cu_list_elements
, tu_list_elements
;
9978 unsigned int address_table_size
, symbol_table_slots
;
9979 unsigned char *cu_list
, *tu_list
;
9980 unsigned char *address_table
, *symbol_table
, *constant_pool
;
9983 /* The documentation for the format of this file is in gdb/dwarf2read.c. */
9985 introduce (section
, false);
9987 if (section
->size
< 6 * sizeof (uint32_t))
9989 warn (_("Truncated header in the %s section.\n"), section
->name
);
9993 version
= byte_get_little_endian (start
, 4);
9994 printf (_("Version %ld\n"), (long) version
);
9996 /* Prior versions are obsolete, and future versions may not be
9997 backwards compatible. */
9998 if (version
< 3 || version
> 8)
10000 warn (_("Unsupported version %lu.\n"), (unsigned long) version
);
10004 warn (_("The address table data in version 3 may be wrong.\n"));
10006 warn (_("Version 4 does not support case insensitive lookups.\n"));
10008 warn (_("Version 5 does not include inlined functions.\n"));
10010 warn (_("Version 6 does not include symbol attributes.\n"));
10011 /* Version 7 indices generated by Gold have bad type unit references,
10012 PR binutils/15021. But we don't know if the index was generated by
10013 Gold or not, so to avoid worrying users with gdb-generated indices
10014 we say nothing for version 7 here. */
10016 cu_list_offset
= byte_get_little_endian (start
+ 4, 4);
10017 tu_list_offset
= byte_get_little_endian (start
+ 8, 4);
10018 address_table_offset
= byte_get_little_endian (start
+ 12, 4);
10019 symbol_table_offset
= byte_get_little_endian (start
+ 16, 4);
10020 constant_pool_offset
= byte_get_little_endian (start
+ 20, 4);
10022 if (cu_list_offset
> section
->size
10023 || tu_list_offset
> section
->size
10024 || address_table_offset
> section
->size
10025 || symbol_table_offset
> section
->size
10026 || constant_pool_offset
> section
->size
)
10028 warn (_("Corrupt header in the %s section.\n"), section
->name
);
10032 /* PR 17531: file: 418d0a8a. */
10033 if (tu_list_offset
< cu_list_offset
)
10035 warn (_("TU offset (%x) is less than CU offset (%x)\n"),
10036 tu_list_offset
, cu_list_offset
);
10040 cu_list_elements
= (tu_list_offset
- cu_list_offset
) / 8;
10042 if (address_table_offset
< tu_list_offset
)
10044 warn (_("Address table offset (%x) is less than TU offset (%x)\n"),
10045 address_table_offset
, tu_list_offset
);
10049 tu_list_elements
= (address_table_offset
- tu_list_offset
) / 8;
10051 /* PR 17531: file: 18a47d3d. */
10052 if (symbol_table_offset
< address_table_offset
)
10054 warn (_("Symbol table offset (%x) is less then Address table offset (%x)\n"),
10055 symbol_table_offset
, address_table_offset
);
10059 address_table_size
= symbol_table_offset
- address_table_offset
;
10061 if (constant_pool_offset
< symbol_table_offset
)
10063 warn (_("Constant pool offset (%x) is less than symbol table offset (%x)\n"),
10064 constant_pool_offset
, symbol_table_offset
);
10068 symbol_table_slots
= (constant_pool_offset
- symbol_table_offset
) / 8;
10070 cu_list
= start
+ cu_list_offset
;
10071 tu_list
= start
+ tu_list_offset
;
10072 address_table
= start
+ address_table_offset
;
10073 symbol_table
= start
+ symbol_table_offset
;
10074 constant_pool
= start
+ constant_pool_offset
;
10076 if (address_table
+ address_table_size
> section
->start
+ section
->size
)
10078 warn (_("Address table extends beyond end of section.\n"));
10082 printf (_("\nCU table:\n"));
10083 for (i
= 0; i
< cu_list_elements
; i
+= 2)
10085 uint64_t cu_offset
= byte_get_little_endian (cu_list
+ i
* 8, 8);
10086 uint64_t cu_length
= byte_get_little_endian (cu_list
+ i
* 8 + 8, 8);
10088 printf (_("[%3u] 0x%lx - 0x%lx\n"), i
/ 2,
10089 (unsigned long) cu_offset
,
10090 (unsigned long) (cu_offset
+ cu_length
- 1));
10093 printf (_("\nTU table:\n"));
10094 for (i
= 0; i
< tu_list_elements
; i
+= 3)
10096 uint64_t tu_offset
= byte_get_little_endian (tu_list
+ i
* 8, 8);
10097 uint64_t type_offset
= byte_get_little_endian (tu_list
+ i
* 8 + 8, 8);
10098 uint64_t signature
= byte_get_little_endian (tu_list
+ i
* 8 + 16, 8);
10100 printf (_("[%3u] 0x%lx 0x%lx "), i
/ 3,
10101 (unsigned long) tu_offset
,
10102 (unsigned long) type_offset
);
10103 print_dwarf_vma (signature
, 8);
10107 printf (_("\nAddress table:\n"));
10108 for (i
= 0; i
< address_table_size
&& i
<= address_table_size
- (2 * 8 + 4);
10111 uint64_t low
= byte_get_little_endian (address_table
+ i
, 8);
10112 uint64_t high
= byte_get_little_endian (address_table
+ i
+ 8, 8);
10113 uint32_t cu_index
= byte_get_little_endian (address_table
+ i
+ 16, 4);
10115 print_dwarf_vma (low
, 8);
10116 print_dwarf_vma (high
, 8);
10117 printf (_("%lu\n"), (unsigned long) cu_index
);
10120 printf (_("\nSymbol table:\n"));
10121 for (i
= 0; i
< symbol_table_slots
; ++i
)
10123 uint32_t name_offset
= byte_get_little_endian (symbol_table
+ i
* 8, 4);
10124 uint32_t cu_vector_offset
= byte_get_little_endian (symbol_table
+ i
* 8 + 4, 4);
10125 uint32_t num_cus
, cu
;
10127 if (name_offset
!= 0
10128 || cu_vector_offset
!= 0)
10131 unsigned char * adr
;
10133 adr
= constant_pool
+ name_offset
;
10134 /* PR 17531: file: 5b7b07ad. */
10135 if (adr
< constant_pool
|| adr
>= section
->start
+ section
->size
)
10137 printf (_("[%3u] <corrupt offset: %x>"), i
, name_offset
);
10138 warn (_("Corrupt name offset of 0x%x found for symbol table slot %d\n"),
10142 printf ("[%3u] %.*s:", i
,
10143 (int) (section
->size
- (constant_pool_offset
+ name_offset
)),
10144 constant_pool
+ name_offset
);
10146 adr
= constant_pool
+ cu_vector_offset
;
10147 if (adr
< constant_pool
|| adr
>= section
->start
+ section
->size
- 3)
10149 printf (_("<invalid CU vector offset: %x>\n"), cu_vector_offset
);
10150 warn (_("Corrupt CU vector offset of 0x%x found for symbol table slot %d\n"),
10151 cu_vector_offset
, i
);
10155 num_cus
= byte_get_little_endian (adr
, 4);
10157 adr
= constant_pool
+ cu_vector_offset
+ 4 + num_cus
* 4;
10158 if (num_cus
* 4 < num_cus
10159 || adr
>= section
->start
+ section
->size
10160 || adr
< constant_pool
)
10162 printf ("<invalid number of CUs: %d>\n", num_cus
);
10163 warn (_("Invalid number of CUs (0x%x) for symbol table slot %d\n"),
10171 for (j
= 0; j
< num_cus
; ++j
)
10174 gdb_index_symbol_kind kind
;
10176 cu
= byte_get_little_endian (constant_pool
+ cu_vector_offset
+ 4 + j
* 4, 4);
10177 is_static
= GDB_INDEX_SYMBOL_STATIC_VALUE (cu
);
10178 kind
= GDB_INDEX_SYMBOL_KIND_VALUE (cu
);
10179 cu
= GDB_INDEX_CU_VALUE (cu
);
10180 /* Convert to TU number if it's for a type unit. */
10181 if (cu
>= cu_list_elements
/ 2)
10182 printf ("%cT%lu", num_cus
> 1 ? '\t' : ' ',
10183 (unsigned long) (cu
- cu_list_elements
/ 2));
10185 printf ("%c%lu", num_cus
> 1 ? '\t' : ' ', (unsigned long) cu
);
10187 printf (" [%s, %s]",
10188 is_static
? _("static") : _("global"),
10189 get_gdb_index_symbol_kind_name (kind
));
10201 /* Pre-allocate enough space for the CU/TU sets needed. */
10204 prealloc_cu_tu_list (unsigned int nshndx
)
10206 if (shndx_pool
== NULL
)
10208 shndx_pool_size
= nshndx
;
10209 shndx_pool_used
= 0;
10210 shndx_pool
= (unsigned int *) xcmalloc (shndx_pool_size
,
10211 sizeof (unsigned int));
10215 shndx_pool_size
= shndx_pool_used
+ nshndx
;
10216 shndx_pool
= (unsigned int *) xcrealloc (shndx_pool
, shndx_pool_size
,
10217 sizeof (unsigned int));
10222 add_shndx_to_cu_tu_entry (unsigned int shndx
)
10224 if (shndx_pool_used
>= shndx_pool_size
)
10226 error (_("Internal error: out of space in the shndx pool.\n"));
10229 shndx_pool
[shndx_pool_used
++] = shndx
;
10233 end_cu_tu_entry (void)
10235 if (shndx_pool_used
>= shndx_pool_size
)
10237 error (_("Internal error: out of space in the shndx pool.\n"));
10240 shndx_pool
[shndx_pool_used
++] = 0;
10243 /* Return the short name of a DWARF section given by a DW_SECT enumerator. */
10245 static const char *
10246 get_DW_SECT_short_name (unsigned int dw_sect
)
10248 static char buf
[16];
10254 case DW_SECT_TYPES
:
10256 case DW_SECT_ABBREV
:
10262 case DW_SECT_STR_OFFSETS
:
10264 case DW_SECT_MACINFO
:
10266 case DW_SECT_MACRO
:
10272 snprintf (buf
, sizeof (buf
), "%d", dw_sect
);
10276 /* Process a CU or TU index. If DO_DISPLAY is true, print the contents.
10277 These sections are extensions for Fission.
10278 See http://gcc.gnu.org/wiki/DebugFissionDWP. */
10281 process_cu_tu_index (struct dwarf_section
*section
, int do_display
)
10283 unsigned char *phdr
= section
->start
;
10284 unsigned char *limit
= phdr
+ section
->size
;
10285 unsigned char *phash
;
10286 unsigned char *pindex
;
10287 unsigned char *ppool
;
10288 unsigned int version
;
10289 unsigned int ncols
= 0;
10290 unsigned int nused
;
10291 unsigned int nslots
;
10294 dwarf_vma signature
;
10296 /* PR 17512: file: 002-168123-0.004. */
10299 warn (_("Section %s is empty\n"), section
->name
);
10302 /* PR 17512: file: 002-376-0.004. */
10303 if (section
->size
< 24)
10305 warn (_("Section %s is too small to contain a CU/TU header\n"),
10311 SAFE_BYTE_GET_AND_INC (version
, phash
, 4, limit
);
10313 SAFE_BYTE_GET_AND_INC (ncols
, phash
, 4, limit
);
10314 SAFE_BYTE_GET_AND_INC (nused
, phash
, 4, limit
);
10315 SAFE_BYTE_GET_AND_INC (nslots
, phash
, 4, limit
);
10317 pindex
= phash
+ (size_t) nslots
* 8;
10318 ppool
= pindex
+ (size_t) nslots
* 4;
10322 introduce (section
, false);
10324 printf (_(" Version: %u\n"), version
);
10326 printf (_(" Number of columns: %u\n"), ncols
);
10327 printf (_(" Number of used entries: %u\n"), nused
);
10328 printf (_(" Number of slots: %u\n\n"), nslots
);
10331 /* PR 17531: file: 45d69832. */
10332 if ((size_t) nslots
* 8 / 8 != nslots
10333 || phash
< phdr
|| phash
> limit
10334 || pindex
< phash
|| pindex
> limit
10335 || ppool
< pindex
|| ppool
> limit
)
10337 warn (ngettext ("Section %s is too small for %u slot\n",
10338 "Section %s is too small for %u slots\n",
10340 section
->name
, nslots
);
10347 prealloc_cu_tu_list ((limit
- ppool
) / 4);
10348 for (i
= 0; i
< nslots
; i
++)
10350 unsigned char *shndx_list
;
10351 unsigned int shndx
;
10353 SAFE_BYTE_GET (signature
, phash
, 8, limit
);
10354 if (signature
!= 0)
10356 SAFE_BYTE_GET (j
, pindex
, 4, limit
);
10357 shndx_list
= ppool
+ j
* 4;
10358 /* PR 17531: file: 705e010d. */
10359 if (shndx_list
< ppool
)
10361 warn (_("Section index pool located before start of section\n"));
10366 printf (_(" [%3d] Signature: 0x%s Sections: "),
10367 i
, dwarf_vmatoa ("x", signature
));
10370 if (shndx_list
>= limit
)
10372 warn (_("Section %s too small for shndx pool\n"),
10376 SAFE_BYTE_GET (shndx
, shndx_list
, 4, limit
);
10380 printf (" %d", shndx
);
10382 add_shndx_to_cu_tu_entry (shndx
);
10388 end_cu_tu_entry ();
10394 else if (version
== 2)
10397 unsigned int dw_sect
;
10398 unsigned char *ph
= phash
;
10399 unsigned char *pi
= pindex
;
10400 unsigned char *poffsets
= ppool
+ (size_t) ncols
* 4;
10401 unsigned char *psizes
= poffsets
+ (size_t) nused
* ncols
* 4;
10402 unsigned char *pend
= psizes
+ (size_t) nused
* ncols
* 4;
10404 struct cu_tu_set
*this_set
= NULL
;
10406 unsigned char *prow
;
10408 is_tu_index
= strcmp (section
->name
, ".debug_tu_index") == 0;
10410 /* PR 17531: file: 0dd159bf.
10411 Check for integer overflow (can occur when size_t is 32-bit)
10412 with overlarge ncols or nused values. */
10414 && ((size_t) ncols
* 4 / 4 != ncols
10415 || (size_t) nused
* ncols
* 4 / ((size_t) ncols
* 4) != nused
10416 || poffsets
< ppool
|| poffsets
> limit
10417 || psizes
< poffsets
|| psizes
> limit
10418 || pend
< psizes
|| pend
> limit
))
10420 warn (_("Section %s too small for offset and size tables\n"),
10427 printf (_(" Offset table\n"));
10428 printf (" slot %-16s ",
10429 is_tu_index
? _("signature") : _("dwo_id"));
10436 tu_sets
= xcalloc2 (nused
, sizeof (struct cu_tu_set
));
10437 this_set
= tu_sets
;
10442 cu_sets
= xcalloc2 (nused
, sizeof (struct cu_tu_set
));
10443 this_set
= cu_sets
;
10449 for (j
= 0; j
< ncols
; j
++)
10451 unsigned char *p
= ppool
+ j
* 4;
10452 SAFE_BYTE_GET (dw_sect
, p
, 4, limit
);
10453 printf (" %8s", get_DW_SECT_short_name (dw_sect
));
10458 for (i
= 0; i
< nslots
; i
++)
10460 SAFE_BYTE_GET (signature
, ph
, 8, limit
);
10462 SAFE_BYTE_GET (row
, pi
, 4, limit
);
10465 /* PR 17531: file: a05f6ab3. */
10468 warn (_("Row index (%u) is larger than number of used entries (%u)\n"),
10475 size_t num_copy
= sizeof (uint64_t);
10477 /* PR 23064: Beware of buffer overflow. */
10478 if (ph
+ num_copy
< limit
)
10479 memcpy (&this_set
[row
- 1].signature
, ph
, num_copy
);
10482 warn (_("Signature (%p) extends beyond end of space in section\n"), ph
);
10487 prow
= poffsets
+ (row
- 1) * ncols
* 4;
10488 /* PR 17531: file: b8ce60a8. */
10489 if (prow
< poffsets
|| prow
> limit
)
10491 warn (_("Row index (%u) * num columns (%u) > space remaining in section\n"),
10497 printf (_(" [%3d] 0x%s"),
10498 i
, dwarf_vmatoa ("x", signature
));
10499 for (j
= 0; j
< ncols
; j
++)
10501 unsigned char *p
= prow
+ j
* 4;
10502 SAFE_BYTE_GET (val
, p
, 4, limit
);
10504 printf (" %8d", val
);
10508 SAFE_BYTE_GET (dw_sect
, p
, 4, limit
);
10510 /* PR 17531: file: 10796eb3. */
10511 if (dw_sect
>= DW_SECT_MAX
)
10512 warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect
);
10514 this_set
[row
- 1].section_offsets
[dw_sect
] = val
;
10530 printf (_(" Size table\n"));
10531 printf (" slot %-16s ",
10532 is_tu_index
? _("signature") : _("dwo_id"));
10535 for (j
= 0; j
< ncols
; j
++)
10537 unsigned char *p
= ppool
+ j
* 4;
10538 SAFE_BYTE_GET (val
, p
, 4, limit
);
10540 printf (" %8s", get_DW_SECT_short_name (val
));
10546 for (i
= 0; i
< nslots
; i
++)
10548 SAFE_BYTE_GET (signature
, ph
, 8, limit
);
10550 SAFE_BYTE_GET (row
, pi
, 4, limit
);
10553 prow
= psizes
+ (row
- 1) * ncols
* 4;
10556 printf (_(" [%3d] 0x%s"),
10557 i
, dwarf_vmatoa ("x", signature
));
10559 for (j
= 0; j
< ncols
; j
++)
10561 unsigned char *p
= prow
+ j
* 4;
10562 SAFE_BYTE_GET (val
, p
, 4, limit
);
10564 printf (" %8d", val
);
10568 SAFE_BYTE_GET (dw_sect
, p
, 4, limit
);
10569 if (dw_sect
>= DW_SECT_MAX
)
10570 warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect
);
10572 this_set
[row
- 1].section_sizes
[dw_sect
] = val
;
10584 else if (do_display
)
10585 printf (_(" Unsupported version (%d)\n"), version
);
10593 static int cu_tu_indexes_read
= -1; /* Tri-state variable. */
10595 /* Load the CU and TU indexes if present. This will build a list of
10596 section sets that we can use to associate a .debug_info.dwo section
10597 with its associated .debug_abbrev.dwo section in a .dwp file. */
10600 load_cu_tu_indexes (void *file
)
10602 /* If we have already loaded (or tried to load) the CU and TU indexes
10603 then do not bother to repeat the task. */
10604 if (cu_tu_indexes_read
== -1)
10606 cu_tu_indexes_read
= true;
10608 if (load_debug_section_with_follow (dwp_cu_index
, file
))
10609 if (! process_cu_tu_index (&debug_displays
[dwp_cu_index
].section
, 0))
10610 cu_tu_indexes_read
= false;
10612 if (load_debug_section_with_follow (dwp_tu_index
, file
))
10613 if (! process_cu_tu_index (&debug_displays
[dwp_tu_index
].section
, 0))
10614 cu_tu_indexes_read
= false;
10617 return (bool) cu_tu_indexes_read
;
10620 /* Find the set of sections that includes section SHNDX. */
10623 find_cu_tu_set (void *file
, unsigned int shndx
)
10627 if (! load_cu_tu_indexes (file
))
10630 /* Find SHNDX in the shndx pool. */
10631 for (i
= 0; i
< shndx_pool_used
; i
++)
10632 if (shndx_pool
[i
] == shndx
)
10635 if (i
>= shndx_pool_used
)
10638 /* Now backup to find the first entry in the set. */
10639 while (i
> 0 && shndx_pool
[i
- 1] != 0)
10642 return shndx_pool
+ i
;
10645 /* Display a .debug_cu_index or .debug_tu_index section. */
10648 display_cu_index (struct dwarf_section
*section
, void *file ATTRIBUTE_UNUSED
)
10650 return process_cu_tu_index (section
, 1);
10654 display_debug_not_supported (struct dwarf_section
*section
,
10655 void *file ATTRIBUTE_UNUSED
)
10657 printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
10663 /* Like malloc, but takes two parameters like calloc.
10664 Verifies that the first parameter is not too large.
10665 Note: does *not* initialise the allocated memory to zero. */
10668 cmalloc (size_t nmemb
, size_t size
)
10670 /* Check for overflow. */
10671 if (nmemb
>= ~(size_t) 0 / size
)
10674 return xmalloc (nmemb
* size
);
10677 /* Like xmalloc, but takes two parameters like calloc.
10678 Verifies that the first parameter is not too large.
10679 Note: does *not* initialise the allocated memory to zero. */
10682 xcmalloc (size_t nmemb
, size_t size
)
10684 /* Check for overflow. */
10685 if (nmemb
>= ~(size_t) 0 / size
)
10688 _("Attempt to allocate an array with an excessive number of elements: 0x%lx\n"),
10693 return xmalloc (nmemb
* size
);
10696 /* Like xrealloc, but takes three parameters.
10697 Verifies that the second parameter is not too large.
10698 Note: does *not* initialise any new memory to zero. */
10701 xcrealloc (void *ptr
, size_t nmemb
, size_t size
)
10703 /* Check for overflow. */
10704 if (nmemb
>= ~(size_t) 0 / size
)
10706 error (_("Attempt to re-allocate an array with an excessive number of elements: 0x%lx\n"),
10711 return xrealloc (ptr
, nmemb
* size
);
10714 /* Like xcalloc, but verifies that the first parameter is not too large. */
10717 xcalloc2 (size_t nmemb
, size_t size
)
10719 /* Check for overflow. */
10720 if (nmemb
>= ~(size_t) 0 / size
)
10722 error (_("Attempt to allocate a zero'ed array with an excessive number of elements: 0x%lx\n"),
10727 return xcalloc (nmemb
, size
);
10730 static unsigned long
10731 calc_gnu_debuglink_crc32 (unsigned long crc
,
10732 const unsigned char * buf
,
10735 static const unsigned long crc32_table
[256] =
10737 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
10738 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
10739 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
10740 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
10741 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
10742 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
10743 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
10744 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
10745 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
10746 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
10747 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
10748 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
10749 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
10750 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
10751 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
10752 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
10753 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
10754 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
10755 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
10756 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
10757 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
10758 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
10759 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
10760 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
10761 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
10762 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
10763 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
10764 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
10765 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
10766 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
10767 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
10768 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
10769 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
10770 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
10771 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
10772 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
10773 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
10774 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
10775 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
10776 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
10777 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
10778 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
10779 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
10780 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
10781 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
10782 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
10783 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
10784 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
10785 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
10786 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
10787 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
10790 const unsigned char *end
;
10792 crc
= ~crc
& 0xffffffff;
10793 for (end
= buf
+ len
; buf
< end
; ++ buf
)
10794 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
10795 return ~crc
& 0xffffffff;
10798 typedef bool (*check_func_type
) (const char *, void *);
10799 typedef const char *(* parse_func_type
) (struct dwarf_section
*, void *);
10802 check_gnu_debuglink (const char * pathname
, void * crc_pointer
)
10804 static unsigned char buffer
[8 * 1024];
10806 bfd_size_type count
;
10807 unsigned long crc
= 0;
10810 sep_data
= open_debug_file (pathname
);
10811 if (sep_data
== NULL
)
10814 /* Yes - we are opening the file twice... */
10815 f
= fopen (pathname
, "rb");
10818 /* Paranoia: This should never happen. */
10819 close_debug_file (sep_data
);
10820 warn (_("Unable to reopen separate debug info file: %s\n"), pathname
);
10824 while ((count
= fread (buffer
, 1, sizeof (buffer
), f
)) > 0)
10825 crc
= calc_gnu_debuglink_crc32 (crc
, buffer
, count
);
10829 if (crc
!= * (unsigned long *) crc_pointer
)
10831 close_debug_file (sep_data
);
10832 warn (_("Separate debug info file %s found, but CRC does not match - ignoring\n"),
10840 static const char *
10841 parse_gnu_debuglink (struct dwarf_section
* section
, void * data
)
10844 unsigned int crc_offset
;
10845 unsigned long * crc32
= (unsigned long *) data
;
10847 /* The name is first.
10848 The CRC value is stored after the filename, aligned up to 4 bytes. */
10849 name
= (const char *) section
->start
;
10851 crc_offset
= strnlen (name
, section
->size
) + 1;
10852 if (crc_offset
== 1)
10854 crc_offset
= (crc_offset
+ 3) & ~3;
10855 if (crc_offset
+ 4 > section
->size
)
10858 * crc32
= byte_get (section
->start
+ crc_offset
, 4);
10863 check_gnu_debugaltlink (const char * filename
, void * data ATTRIBUTE_UNUSED
)
10865 void * sep_data
= open_debug_file (filename
);
10867 if (sep_data
== NULL
)
10870 /* FIXME: We should now extract the build-id in the separate file
10876 typedef struct build_id_data
10879 const unsigned char * data
;
10882 static const char *
10883 parse_gnu_debugaltlink (struct dwarf_section
* section
, void * data
)
10886 bfd_size_type namelen
;
10887 bfd_size_type id_len
;
10888 Build_id_data
* build_id_data
;
10890 /* The name is first.
10891 The build-id follows immediately, with no padding, up to the section's end. */
10893 name
= (const char *) section
->start
;
10894 namelen
= strnlen (name
, section
->size
) + 1;
10897 if (namelen
>= section
->size
)
10900 id_len
= section
->size
- namelen
;
10904 build_id_data
= (Build_id_data
*) data
;
10905 build_id_data
->len
= id_len
;
10906 build_id_data
->data
= section
->start
+ namelen
;
10912 add_separate_debug_file (const char * filename
, void * handle
)
10914 separate_info
* i
= xmalloc (sizeof * i
);
10916 i
->filename
= filename
;
10917 i
->handle
= handle
;
10918 i
->next
= first_separate_info
;
10919 first_separate_info
= i
;
10922 #if HAVE_LIBDEBUGINFOD
10923 /* Query debuginfod servers for the target debuglink or debugaltlink
10924 file. If successful, store the path of the file in filename and
10925 return TRUE, otherwise return FALSE. */
10928 debuginfod_fetch_separate_debug_info (struct dwarf_section
* section
,
10932 size_t build_id_len
;
10933 unsigned char * build_id
;
10935 if (strcmp (section
->uncompressed_name
, ".gnu_debuglink") == 0)
10937 /* Get the build-id of file. */
10938 build_id
= get_build_id (file
);
10941 else if (strcmp (section
->uncompressed_name
, ".gnu_debugaltlink") == 0)
10943 /* Get the build-id of the debugaltlink file. */
10944 unsigned int filelen
;
10946 filelen
= strnlen ((const char *)section
->start
, section
->size
);
10947 if (filelen
== section
->size
)
10948 /* Corrupt debugaltlink. */
10951 build_id
= section
->start
+ filelen
+ 1;
10952 build_id_len
= section
->size
- (filelen
+ 1);
10954 if (build_id_len
== 0)
10963 debuginfod_client
* client
;
10965 client
= debuginfod_begin ();
10966 if (client
== NULL
)
10969 /* Query debuginfod servers for the target file. If found its path
10970 will be stored in filename. */
10971 fd
= debuginfod_find_debuginfo (client
, build_id
, build_id_len
, filename
);
10972 debuginfod_end (client
);
10974 /* Only free build_id if we allocated space for a hex string
10975 in get_build_id (). */
10976 if (build_id_len
== 0)
10981 /* File successfully retrieved. Close fd since we want to
10982 use open_debug_file () on filename instead. */
10993 load_separate_debug_info (const char * main_filename
,
10994 struct dwarf_section
* xlink
,
10995 parse_func_type parse_func
,
10996 check_func_type check_func
,
10998 void * file ATTRIBUTE_UNUSED
)
11000 const char * separate_filename
;
11001 char * debug_filename
;
11003 size_t canon_dirlen
;
11006 if ((separate_filename
= parse_func (xlink
, func_data
)) == NULL
)
11008 warn (_("Corrupt debuglink section: %s\n"),
11009 xlink
->name
? xlink
->name
: xlink
->uncompressed_name
);
11013 /* Attempt to locate the separate file.
11014 This should duplicate the logic in bfd/opncls.c:find_separate_debug_file(). */
11016 canon_dir
= lrealpath (main_filename
);
11018 for (canon_dirlen
= strlen (canon_dir
); canon_dirlen
> 0; canon_dirlen
--)
11019 if (IS_DIR_SEPARATOR (canon_dir
[canon_dirlen
- 1]))
11021 canon_dir
[canon_dirlen
] = '\0';
11024 #define DEBUGDIR "/lib/debug"
11026 #ifndef EXTRA_DEBUG_ROOT1
11027 #define EXTRA_DEBUG_ROOT1 "/usr/lib/debug"
11029 #ifndef EXTRA_DEBUG_ROOT2
11030 #define EXTRA_DEBUG_ROOT2 "/usr/lib/debug/usr"
11033 debug_filename
= (char *) malloc (strlen (DEBUGDIR
) + 1
11035 + strlen (".debug/")
11036 #ifdef EXTRA_DEBUG_ROOT1
11037 + strlen (EXTRA_DEBUG_ROOT1
)
11039 #ifdef EXTRA_DEBUG_ROOT2
11040 + strlen (EXTRA_DEBUG_ROOT2
)
11042 + strlen (separate_filename
)
11044 if (debug_filename
== NULL
)
11046 warn (_("Out of memory"));
11051 /* First try in the current directory. */
11052 sprintf (debug_filename
, "%s", separate_filename
);
11053 if (check_func (debug_filename
, func_data
))
11056 /* Then try in a subdirectory called .debug. */
11057 sprintf (debug_filename
, ".debug/%s", separate_filename
);
11058 if (check_func (debug_filename
, func_data
))
11061 /* Then try in the same directory as the original file. */
11062 sprintf (debug_filename
, "%s%s", canon_dir
, separate_filename
);
11063 if (check_func (debug_filename
, func_data
))
11066 /* And the .debug subdirectory of that directory. */
11067 sprintf (debug_filename
, "%s.debug/%s", canon_dir
, separate_filename
);
11068 if (check_func (debug_filename
, func_data
))
11071 #ifdef EXTRA_DEBUG_ROOT1
11072 /* Try the first extra debug file root. */
11073 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT1
, separate_filename
);
11074 if (check_func (debug_filename
, func_data
))
11077 /* Try the first extra debug file root. */
11078 sprintf (debug_filename
, "%s/%s/%s", EXTRA_DEBUG_ROOT1
, canon_dir
, separate_filename
);
11079 if (check_func (debug_filename
, func_data
))
11083 #ifdef EXTRA_DEBUG_ROOT2
11084 /* Try the second extra debug file root. */
11085 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT2
, separate_filename
);
11086 if (check_func (debug_filename
, func_data
))
11090 /* Then try in the global debug_filename directory. */
11091 strcpy (debug_filename
, DEBUGDIR
);
11092 dirlen
= strlen (DEBUGDIR
) - 1;
11093 if (dirlen
> 0 && DEBUGDIR
[dirlen
] != '/')
11094 strcat (debug_filename
, "/");
11095 strcat (debug_filename
, (const char *) separate_filename
);
11097 if (check_func (debug_filename
, func_data
))
11100 #if HAVE_LIBDEBUGINFOD
11102 char * tmp_filename
;
11104 if (debuginfod_fetch_separate_debug_info (xlink
,
11108 /* File successfully downloaded from server, replace
11109 debug_filename with the file's path. */
11110 free (debug_filename
);
11111 debug_filename
= tmp_filename
;
11117 if (do_debug_links
)
11119 /* Failed to find the file. */
11120 warn (_("could not find separate debug file '%s'\n"),
11121 separate_filename
);
11122 warn (_("tried: %s\n"), debug_filename
);
11124 #ifdef EXTRA_DEBUG_ROOT2
11125 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT2
,
11126 separate_filename
);
11127 warn (_("tried: %s\n"), debug_filename
);
11130 #ifdef EXTRA_DEBUG_ROOT1
11131 sprintf (debug_filename
, "%s/%s/%s", EXTRA_DEBUG_ROOT1
,
11132 canon_dir
, separate_filename
);
11133 warn (_("tried: %s\n"), debug_filename
);
11135 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT1
,
11136 separate_filename
);
11137 warn (_("tried: %s\n"), debug_filename
);
11140 sprintf (debug_filename
, "%s.debug/%s", canon_dir
,
11141 separate_filename
);
11142 warn (_("tried: %s\n"), debug_filename
);
11144 sprintf (debug_filename
, "%s%s", canon_dir
, separate_filename
);
11145 warn (_("tried: %s\n"), debug_filename
);
11147 sprintf (debug_filename
, ".debug/%s", separate_filename
);
11148 warn (_("tried: %s\n"), debug_filename
);
11150 sprintf (debug_filename
, "%s", separate_filename
);
11151 warn (_("tried: %s\n"), debug_filename
);
11153 #if HAVE_LIBDEBUGINFOD
11155 char *urls
= getenv (DEBUGINFOD_URLS_ENV_VAR
);
11159 warn (_("tried: DEBUGINFOD_URLS=%s\n"), urls
);
11165 free (debug_filename
);
11171 void * debug_handle
;
11173 /* Now open the file.... */
11174 if ((debug_handle
= open_debug_file (debug_filename
)) == NULL
)
11176 warn (_("failed to open separate debug file: %s\n"), debug_filename
);
11177 free (debug_filename
);
11181 /* FIXME: We do not check to see if there are any other separate debug info
11182 files that would also match. */
11184 if (do_debug_links
)
11185 printf (_("\n%s: Found separate debug info file: %s\n"), main_filename
, debug_filename
);
11186 add_separate_debug_file (debug_filename
, debug_handle
);
11188 /* Do not free debug_filename - it might be referenced inside
11189 the structure returned by open_debug_file(). */
11190 return debug_handle
;
11193 /* Attempt to load a separate dwarf object file. */
11196 load_dwo_file (const char * main_filename
, const char * name
, const char * dir
, const char * id ATTRIBUTE_UNUSED
)
11198 char * separate_filename
;
11199 void * separate_handle
;
11201 if (IS_ABSOLUTE_PATH (name
))
11202 separate_filename
= strdup (name
);
11204 /* FIXME: Skip adding / if dwo_dir ends in /. */
11205 separate_filename
= concat (dir
, "/", name
, NULL
);
11206 if (separate_filename
== NULL
)
11208 warn (_("Out of memory allocating dwo filename\n"));
11212 if ((separate_handle
= open_debug_file (separate_filename
)) == NULL
)
11214 warn (_("Unable to load dwo file: %s\n"), separate_filename
);
11215 free (separate_filename
);
11219 /* FIXME: We should check the dwo_id. */
11221 printf (_("%s: Found separate debug object file: %s\n\n"), main_filename
, separate_filename
);
11223 add_separate_debug_file (separate_filename
, separate_handle
);
11224 /* Note - separate_filename will be freed in free_debug_memory(). */
11225 return separate_handle
;
11229 load_debug_sup_file (const char * main_filename
, void * file
)
11231 if (! load_debug_section (debug_sup
, file
))
11232 return; /* No .debug_sup section. */
11234 struct dwarf_section
* section
;
11235 section
= & debug_displays
[debug_sup
].section
;
11236 assert (section
!= NULL
);
11238 if (section
->start
== NULL
|| section
->size
< 5)
11240 warn (_(".debug_sup section is corrupt/empty\n"));
11244 if (section
->start
[2] != 0)
11245 return; /* This is a supplementary file. */
11247 const char * filename
= (const char *) section
->start
+ 3;
11248 if (strnlen (filename
, section
->size
- 3) == section
->size
- 3)
11250 warn (_("filename in .debug_sup section is corrupt\n"));
11254 if (filename
[0] != '/' && strchr (main_filename
, '/'))
11259 new_len
= asprintf (& new_name
, "%.*s/%s",
11260 (int) (strrchr (main_filename
, '/') - main_filename
),
11265 warn (_("unable to construct path for supplementary debug file"));
11270 filename
= new_name
;
11274 /* PR 27796: Make sure that we pass a filename that can be free'd to
11275 add_separate_debug_file(). */
11276 filename
= strdup (filename
);
11277 if (filename
== NULL
)
11279 warn (_("out of memory constructing filename for .debug_sup link\n"));
11284 void * handle
= open_debug_file (filename
);
11285 if (handle
== NULL
)
11287 warn (_("unable to open file '%s' referenced from .debug_sup section\n"), filename
);
11288 free ((void *) filename
);
11292 printf (_("%s: Found supplementary debug file: %s\n\n"), main_filename
, filename
);
11294 /* FIXME: Compare the checksums, if present. */
11295 add_separate_debug_file (filename
, handle
);
11298 /* Load a debuglink section and/or a debugaltlink section, if either are present.
11299 Recursively check the loaded files for more of these sections.
11300 Also follow any links in .debug_sup sections.
11301 FIXME: Should also check for DWO_* entries in the newly loaded files. */
11304 check_for_and_load_links (void * file
, const char * filename
)
11306 void * handle
= NULL
;
11308 if (load_debug_section (gnu_debugaltlink
, file
))
11310 Build_id_data build_id_data
;
11312 handle
= load_separate_debug_info (filename
,
11313 & debug_displays
[gnu_debugaltlink
].section
,
11314 parse_gnu_debugaltlink
,
11315 check_gnu_debugaltlink
,
11320 assert (handle
== first_separate_info
->handle
);
11321 check_for_and_load_links (first_separate_info
->handle
,
11322 first_separate_info
->filename
);
11326 if (load_debug_section (gnu_debuglink
, file
))
11328 unsigned long crc32
;
11330 handle
= load_separate_debug_info (filename
,
11331 & debug_displays
[gnu_debuglink
].section
,
11332 parse_gnu_debuglink
,
11333 check_gnu_debuglink
,
11338 assert (handle
== first_separate_info
->handle
);
11339 check_for_and_load_links (first_separate_info
->handle
,
11340 first_separate_info
->filename
);
11344 load_debug_sup_file (filename
, file
);
11347 /* Load the separate debug info file(s) attached to FILE, if any exist.
11348 Returns TRUE if any were found, FALSE otherwise.
11349 If TRUE is returned then the linked list starting at first_separate_info
11350 will be populated with open file handles. */
11353 load_separate_debug_files (void * file
, const char * filename
)
11355 /* Skip this operation if we are not interested in debug links. */
11356 if (! do_follow_links
&& ! do_debug_links
)
11359 /* See if there are any dwo links. */
11360 if (load_debug_section (str
, file
)
11361 && load_debug_section (abbrev
, file
)
11362 && load_debug_section (info
, file
))
11366 if (process_debug_info (& debug_displays
[info
].section
, file
, abbrev
,
11369 bool introduced
= false;
11371 const char *dir
= NULL
;
11372 const char *id
= NULL
;
11373 const char *name
= NULL
;
11375 for (dwinfo
= first_dwo_info
; dwinfo
!= NULL
; dwinfo
= dwinfo
->next
)
11377 /* Accumulate NAME, DIR and ID fields. */
11378 switch (dwinfo
->type
)
11382 warn (_("Multiple DWO_NAMEs encountered for the same CU\n"));
11383 name
= dwinfo
->value
;
11387 /* There can be multiple DW_AT_comp_dir entries in a CU,
11388 so do not complain. */
11389 dir
= dwinfo
->value
;
11394 warn (_("multiple DWO_IDs encountered for the same CU\n"));
11395 id
= dwinfo
->value
;
11399 error (_("Unexpected DWO INFO type"));
11403 /* If we have reached the end of our list, or we are changing
11404 CUs, then display the information that we have accumulated
11407 && (dwinfo
->next
== NULL
11408 || dwinfo
->next
->cu_offset
!= dwinfo
->cu_offset
))
11410 if (do_debug_links
)
11414 printf (_("The %s section contains link(s) to dwo file(s):\n\n"),
11415 debug_displays
[info
].section
.uncompressed_name
);
11419 printf (_(" Name: %s\n"), name
);
11420 printf (_(" Directory: %s\n"), dir
? dir
: _("<not-found>"));
11422 display_data (printf (_(" ID: ")), (unsigned char *) id
, 8);
11424 printf (_(" ID: <not specified>\n"));
11428 if (do_follow_links
)
11429 load_dwo_file (filename
, name
, dir
, id
);
11431 name
= dir
= id
= NULL
;
11437 if (! do_follow_links
)
11438 /* The other debug links will be displayed by display_debug_links()
11439 so we do not need to do any further processing here. */
11442 /* FIXME: We do not check for the presence of both link sections in the same file. */
11443 /* FIXME: We do not check for the presence of multiple, same-name debuglink sections. */
11444 /* FIXME: We do not check for the presence of a dwo link as well as a debuglink. */
11446 check_for_and_load_links (file
, filename
);
11447 if (first_separate_info
!= NULL
)
11450 do_follow_links
= 0;
11455 free_debug_memory (void)
11459 free_all_abbrevs ();
11461 free (cu_abbrev_map
);
11462 cu_abbrev_map
= NULL
;
11463 next_free_abbrev_map_entry
= 0;
11467 shndx_pool_size
= 0;
11468 shndx_pool_used
= 0;
11476 memset (level_type_signed
, 0, sizeof level_type_signed
);
11477 cu_tu_indexes_read
= -1;
11479 for (i
= 0; i
< max
; i
++)
11480 free_debug_section ((enum dwarf_section_display_enum
) i
);
11482 if (debug_information
!= NULL
)
11484 for (i
= 0; i
< alloc_num_debug_info_entries
; i
++)
11486 if (debug_information
[i
].max_loc_offsets
)
11488 free (debug_information
[i
].loc_offsets
);
11489 free (debug_information
[i
].have_frame_base
);
11491 if (debug_information
[i
].max_range_lists
)
11492 free (debug_information
[i
].range_lists
);
11494 free (debug_information
);
11495 debug_information
= NULL
;
11496 alloc_num_debug_info_entries
= num_debug_info_entries
= 0;
11500 separate_info
* next
;
11502 for (d
= first_separate_info
; d
!= NULL
; d
= next
)
11504 close_debug_file (d
->handle
);
11505 free ((void *) d
->filename
);
11509 first_separate_info
= NULL
;
11515 dwarf_select_sections_by_names (const char *names
)
11519 const char * option
;
11523 debug_dump_long_opts
;
11525 static const debug_dump_long_opts opts_table
[] =
11527 /* Please keep this table alpha- sorted. */
11528 { "Ranges", & do_debug_ranges
, 1 },
11529 { "abbrev", & do_debug_abbrevs
, 1 },
11530 { "addr", & do_debug_addr
, 1 },
11531 { "aranges", & do_debug_aranges
, 1 },
11532 { "cu_index", & do_debug_cu_index
, 1 },
11533 { "decodedline", & do_debug_lines
, FLAG_DEBUG_LINES_DECODED
},
11534 { "follow-links", & do_follow_links
, 1 },
11535 { "frames", & do_debug_frames
, 1 },
11536 { "frames-interp", & do_debug_frames_interp
, 1 },
11537 /* The special .gdb_index section. */
11538 { "gdb_index", & do_gdb_index
, 1 },
11539 { "info", & do_debug_info
, 1 },
11540 { "line", & do_debug_lines
, FLAG_DEBUG_LINES_RAW
}, /* For backwards compatibility. */
11541 { "links", & do_debug_links
, 1 },
11542 { "loc", & do_debug_loc
, 1 },
11543 { "macro", & do_debug_macinfo
, 1 },
11544 { "no-follow-links", & do_follow_links
, 0 },
11545 { "pubnames", & do_debug_pubnames
, 1 },
11546 { "pubtypes", & do_debug_pubtypes
, 1 },
11547 /* This entry is for compatibility
11548 with earlier versions of readelf. */
11549 { "ranges", & do_debug_aranges
, 1 },
11550 { "rawline", & do_debug_lines
, FLAG_DEBUG_LINES_RAW
},
11551 { "str", & do_debug_str
, 1 },
11552 { "str-offsets", & do_debug_str_offsets
, 1 },
11553 /* These trace_* sections are used by Itanium VMS. */
11554 { "trace_abbrev", & do_trace_abbrevs
, 1 },
11555 { "trace_aranges", & do_trace_aranges
, 1 },
11556 { "trace_info", & do_trace_info
, 1 },
11565 const debug_dump_long_opts
* entry
;
11567 for (entry
= opts_table
; entry
->option
; entry
++)
11569 size_t len
= strlen (entry
->option
);
11571 if (strncmp (p
, entry
->option
, len
) == 0
11572 && (p
[len
] == ',' || p
[len
] == '\0'))
11574 * entry
->variable
= entry
->val
;
11576 /* The --debug-dump=frames-interp option also
11577 enables the --debug-dump=frames option. */
11578 if (do_debug_frames_interp
)
11579 do_debug_frames
= 1;
11586 if (entry
->option
== NULL
)
11588 warn (_("Unrecognized debug option '%s'\n"), p
);
11589 p
= strchr (p
, ',');
11600 dwarf_select_sections_by_letters (const char *letters
)
11602 unsigned int lindex
= 0;
11604 while (letters
[lindex
])
11605 switch (letters
[lindex
++])
11607 case 'A': do_debug_addr
= 1; break;
11608 case 'a': do_debug_abbrevs
= 1; break;
11609 case 'c': do_debug_cu_index
= 1; break;
11610 case 'F': do_debug_frames_interp
= 1; /* Fall through. */
11611 case 'f': do_debug_frames
= 1; break;
11612 case 'g': do_gdb_index
= 1; break;
11613 case 'i': do_debug_info
= 1; break;
11614 case 'K': do_follow_links
= 1; break;
11615 case 'N': do_follow_links
= 0; break;
11616 case 'k': do_debug_links
= 1; break;
11617 case 'l': do_debug_lines
|= FLAG_DEBUG_LINES_RAW
; break;
11618 case 'L': do_debug_lines
|= FLAG_DEBUG_LINES_DECODED
; break;
11619 case 'm': do_debug_macinfo
= 1; break;
11620 case 'O': do_debug_str_offsets
= 1; break;
11621 case 'o': do_debug_loc
= 1; break;
11622 case 'p': do_debug_pubnames
= 1; break;
11623 case 'R': do_debug_ranges
= 1; break;
11624 case 'r': do_debug_aranges
= 1; break;
11625 case 's': do_debug_str
= 1; break;
11626 case 'T': do_trace_aranges
= 1; break;
11627 case 't': do_debug_pubtypes
= 1; break;
11628 case 'U': do_trace_info
= 1; break;
11629 case 'u': do_trace_abbrevs
= 1; break;
11632 warn (_("Unrecognized debug option '%s'\n"), letters
);
11638 dwarf_select_sections_all (void)
11641 do_debug_abbrevs
= 1;
11642 do_debug_lines
= FLAG_DEBUG_LINES_RAW
;
11643 do_debug_pubnames
= 1;
11644 do_debug_pubtypes
= 1;
11645 do_debug_aranges
= 1;
11646 do_debug_ranges
= 1;
11647 do_debug_frames
= 1;
11648 do_debug_macinfo
= 1;
11653 do_trace_abbrevs
= 1;
11654 do_trace_aranges
= 1;
11656 do_debug_cu_index
= 1;
11657 do_follow_links
= 1;
11658 do_debug_links
= 1;
11659 do_debug_str_offsets
= 1;
11662 #define NO_ABBREVS NULL, NULL, NULL, 0, 0, 0, NULL, 0
11663 #define ABBREV(N) NULL, NULL, NULL, 0, 0, N, NULL, 0
11665 /* N.B. The order here must match the order in section_display_enum. */
11667 struct dwarf_section_display debug_displays
[] =
11669 { { ".debug_abbrev", ".zdebug_abbrev", NO_ABBREVS
}, display_debug_abbrev
, &do_debug_abbrevs
, false },
11670 { { ".debug_aranges", ".zdebug_aranges", NO_ABBREVS
}, display_debug_aranges
, &do_debug_aranges
, true },
11671 { { ".debug_frame", ".zdebug_frame", NO_ABBREVS
}, display_debug_frames
, &do_debug_frames
, true },
11672 { { ".debug_info", ".zdebug_info", ABBREV (abbrev
)}, display_debug_info
, &do_debug_info
, true },
11673 { { ".debug_line", ".zdebug_line", NO_ABBREVS
}, display_debug_lines
, &do_debug_lines
, true },
11674 { { ".debug_pubnames", ".zdebug_pubnames", NO_ABBREVS
}, display_debug_pubnames
, &do_debug_pubnames
, false },
11675 { { ".debug_gnu_pubnames", ".zdebug_gnu_pubnames", NO_ABBREVS
}, display_debug_gnu_pubnames
, &do_debug_pubnames
, false },
11676 { { ".eh_frame", "", NO_ABBREVS
}, display_debug_frames
, &do_debug_frames
, true },
11677 { { ".debug_macinfo", ".zdebug_macinfo", NO_ABBREVS
}, display_debug_macinfo
, &do_debug_macinfo
, false },
11678 { { ".debug_macro", ".zdebug_macro", NO_ABBREVS
}, display_debug_macro
, &do_debug_macinfo
, true },
11679 { { ".debug_str", ".zdebug_str", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, false },
11680 { { ".debug_line_str", ".zdebug_line_str", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, false },
11681 { { ".debug_loc", ".zdebug_loc", NO_ABBREVS
}, display_debug_loc
, &do_debug_loc
, true },
11682 { { ".debug_loclists", ".zdebug_loclists", NO_ABBREVS
}, display_debug_loc
, &do_debug_loc
, true },
11683 { { ".debug_pubtypes", ".zdebug_pubtypes", NO_ABBREVS
}, display_debug_pubnames
, &do_debug_pubtypes
, false },
11684 { { ".debug_gnu_pubtypes", ".zdebug_gnu_pubtypes", NO_ABBREVS
}, display_debug_gnu_pubnames
, &do_debug_pubtypes
, false },
11685 { { ".debug_ranges", ".zdebug_ranges", NO_ABBREVS
}, display_debug_ranges
, &do_debug_ranges
, true },
11686 { { ".debug_rnglists", ".zdebug_rnglists", NO_ABBREVS
}, display_debug_ranges
, &do_debug_ranges
, true },
11687 { { ".debug_static_func", ".zdebug_static_func", NO_ABBREVS
}, display_debug_not_supported
, NULL
, false },
11688 { { ".debug_static_vars", ".zdebug_static_vars", NO_ABBREVS
}, display_debug_not_supported
, NULL
, false },
11689 { { ".debug_types", ".zdebug_types", ABBREV (abbrev
) }, display_debug_types
, &do_debug_info
, true },
11690 { { ".debug_weaknames", ".zdebug_weaknames", NO_ABBREVS
}, display_debug_not_supported
, NULL
, false },
11691 { { ".gdb_index", "", NO_ABBREVS
}, display_gdb_index
, &do_gdb_index
, false },
11692 { { ".debug_names", "", NO_ABBREVS
}, display_debug_names
, &do_gdb_index
, false },
11693 { { ".trace_info", "", ABBREV (trace_abbrev
) }, display_trace_info
, &do_trace_info
, true },
11694 { { ".trace_abbrev", "", NO_ABBREVS
}, display_debug_abbrev
, &do_trace_abbrevs
, false },
11695 { { ".trace_aranges", "", NO_ABBREVS
}, display_debug_aranges
, &do_trace_aranges
, false },
11696 { { ".debug_info.dwo", ".zdebug_info.dwo", ABBREV (abbrev_dwo
) }, display_debug_info
, &do_debug_info
, true },
11697 { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NO_ABBREVS
}, display_debug_abbrev
, &do_debug_abbrevs
, false },
11698 { { ".debug_types.dwo", ".zdebug_types.dwo", ABBREV (abbrev_dwo
) }, display_debug_types
, &do_debug_info
, true },
11699 { { ".debug_line.dwo", ".zdebug_line.dwo", NO_ABBREVS
}, display_debug_lines
, &do_debug_lines
, true },
11700 { { ".debug_loc.dwo", ".zdebug_loc.dwo", NO_ABBREVS
}, display_debug_loc
, &do_debug_loc
, true },
11701 { { ".debug_macro.dwo", ".zdebug_macro.dwo", NO_ABBREVS
}, display_debug_macro
, &do_debug_macinfo
, true },
11702 { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NO_ABBREVS
}, display_debug_macinfo
, &do_debug_macinfo
, false },
11703 { { ".debug_str.dwo", ".zdebug_str.dwo", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, true },
11704 { { ".debug_str_offsets", ".zdebug_str_offsets", NO_ABBREVS
}, display_debug_str_offsets
, &do_debug_str_offsets
, true },
11705 { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NO_ABBREVS
}, display_debug_str_offsets
, &do_debug_str_offsets
, true },
11706 { { ".debug_addr", ".zdebug_addr", NO_ABBREVS
}, display_debug_addr
, &do_debug_addr
, true },
11707 { { ".debug_cu_index", "", NO_ABBREVS
}, display_cu_index
, &do_debug_cu_index
, false },
11708 { { ".debug_tu_index", "", NO_ABBREVS
}, display_cu_index
, &do_debug_cu_index
, false },
11709 { { ".gnu_debuglink", "", NO_ABBREVS
}, display_debug_links
, &do_debug_links
, false },
11710 { { ".gnu_debugaltlink", "", NO_ABBREVS
}, display_debug_links
, &do_debug_links
, false },
11711 { { ".debug_sup", "", NO_ABBREVS
}, display_debug_sup
, &do_debug_links
, false },
11712 /* Separate debug info files can containt their own .debug_str section,
11713 and this might be in *addition* to a .debug_str section already present
11714 in the main file. Hence we need to have two entries for .debug_str. */
11715 { { ".debug_str", ".zdebug_str", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, false },
11718 /* A static assertion. */
11719 extern int debug_displays_assert
[ARRAY_SIZE (debug_displays
) == max
? 1 : -1];