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>
44 #ifndef ENABLE_CHECKING
45 #define ENABLE_CHECKING 0
50 #define MAX(a, b) ((a) > (b) ? (a) : (b))
51 #define MIN(a, b) ((a) < (b) ? (a) : (b))
53 static const char *regname (unsigned int regno
, int row
);
54 static const char *regname_internal_by_table_only (unsigned int regno
);
56 static int have_frame_base
;
57 static int need_base_address
;
59 static unsigned int num_debug_info_entries
= 0;
60 static unsigned int alloc_num_debug_info_entries
= 0;
61 static debug_info
*debug_information
= NULL
;
62 /* Special value for num_debug_info_entries to indicate
63 that the .debug_info section could not be loaded/parsed. */
64 #define DEBUG_INFO_UNAVAILABLE (unsigned int) -1
66 /* A .debug_info section can contain multiple links to separate
67 DWO object files. We use these structures to record these links. */
75 typedef struct dwo_info
80 struct dwo_info
* next
;
83 static dwo_info
*first_dwo_info
= NULL
;
84 static bool need_dwo_info
;
86 separate_info
* first_separate_info
= NULL
;
88 unsigned int eh_addr_size
;
93 int do_debug_pubnames
;
94 int do_debug_pubtypes
;
98 int do_debug_frames_interp
;
101 int do_debug_str_offsets
;
105 int do_trace_abbrevs
;
106 int do_trace_aranges
;
108 int do_debug_cu_index
;
111 int do_follow_links
= DEFAULT_FOR_FOLLOW_LINKS
;
114 int dwarf_cutoff_level
= -1;
115 unsigned long dwarf_start_die
;
119 /* Convenient constant, to avoid having to cast -1 to dwarf_vma when
120 testing whether e.g. a locview list is present. */
121 static const dwarf_vma vm1
= -1;
123 /* Collection of CU/TU section sets from .debug_cu_index and .debug_tu_index
124 sections. For version 1 package files, each set is stored in SHNDX_POOL
125 as a zero-terminated list of section indexes comprising one set of debug
126 sections from a .dwo file. */
128 static unsigned int *shndx_pool
= NULL
;
129 static unsigned int shndx_pool_size
= 0;
130 static unsigned int shndx_pool_used
= 0;
132 /* For version 2 package files, each set contains an array of section offsets
133 and an array of section sizes, giving the offset and size of the
134 contribution from a CU or TU within one of the debug sections.
135 When displaying debug info from a package file, we need to use these
136 tables to locate the corresponding contributions to each section. */
141 dwarf_vma section_offsets
[DW_SECT_MAX
];
142 size_t section_sizes
[DW_SECT_MAX
];
145 static int cu_count
= 0;
146 static int tu_count
= 0;
147 static struct cu_tu_set
*cu_sets
= NULL
;
148 static struct cu_tu_set
*tu_sets
= NULL
;
150 static bool load_cu_tu_indexes (void *);
152 /* An array that indicates for a given level of CU nesting whether
153 the latest DW_AT_type seen for that level was a signed type or
155 #define MAX_CU_NESTING (1 << 8)
156 static bool level_type_signed
[MAX_CU_NESTING
];
158 /* Values for do_debug_lines. */
159 #define FLAG_DEBUG_LINES_RAW 1
160 #define FLAG_DEBUG_LINES_DECODED 2
163 size_of_encoded_value (int encoding
)
165 switch (encoding
& 0x7)
168 case 0: return eh_addr_size
;
176 get_encoded_value (unsigned char **pdata
,
178 struct dwarf_section
*section
,
181 unsigned char * data
= * pdata
;
182 unsigned int size
= size_of_encoded_value (encoding
);
185 if (data
>= end
|| size
> (size_t) (end
- data
))
187 warn (_("Encoded value extends past end of section\n"));
192 /* PR 17512: file: 002-829853-0.004. */
195 warn (_("Encoded size of %d is too large to read\n"), size
);
200 /* PR 17512: file: 1085-5603-0.004. */
203 warn (_("Encoded size of 0 is too small to read\n"));
208 if (encoding
& DW_EH_PE_signed
)
209 val
= byte_get_signed (data
, size
);
211 val
= byte_get (data
, size
);
213 if ((encoding
& 0x70) == DW_EH_PE_pcrel
)
214 val
+= section
->address
+ (data
- section
->start
);
216 * pdata
= data
+ size
;
220 #if SIZEOF_LONG_LONG > SIZEOF_LONG
222 # define DWARF_VMA_FMT "ll"
223 # define DWARF_VMA_FMT_LONG "%16.16llx"
225 # define DWARF_VMA_FMT "I64"
226 # define DWARF_VMA_FMT_LONG "%016I64x"
229 # define DWARF_VMA_FMT "l"
230 # define DWARF_VMA_FMT_LONG "%16.16lx"
233 /* Convert a dwarf vma value into a string. Returns a pointer to a static
234 buffer containing the converted VALUE. The value is converted according
235 to the printf formating character FMTCH. If NUM_BYTES is non-zero then
236 it specifies the maximum number of bytes to be displayed in the converted
237 value and FMTCH is ignored - hex is always used. */
240 dwarf_vmatoa_1 (const char *fmtch
, dwarf_vma value
, unsigned num_bytes
)
242 /* As dwarf_vmatoa is used more then once in a printf call
243 for output, we are cycling through an fixed array of pointers
244 for return address. */
245 static int buf_pos
= 0;
246 static struct dwarf_vmatoa_buf
252 ret
= buf
[buf_pos
++].place
;
253 buf_pos
%= ARRAY_SIZE (buf
);
257 /* Printf does not have a way of specifying a maximum field width for an
258 integer value, so we print the full value into a buffer and then select
259 the precision we need. */
260 snprintf (ret
, sizeof (buf
[0].place
), DWARF_VMA_FMT_LONG
, value
);
263 return ret
+ (16 - 2 * num_bytes
);
270 sprintf (fmt
, "%%%s%s", DWARF_VMA_FMT
, fmtch
);
272 sprintf (fmt
, "%%%s", DWARF_VMA_FMT
);
273 snprintf (ret
, sizeof (buf
[0].place
), fmt
, value
);
278 static inline const char *
279 dwarf_vmatoa (const char * fmtch
, dwarf_vma value
)
281 return dwarf_vmatoa_1 (fmtch
, value
, 0);
284 /* Print a dwarf_vma value (typically an address, offset or length) in
285 hexadecimal format, followed by a space. The length of the VALUE (and
286 hence the precision displayed) is determined by the NUM_BYTES parameter. */
289 print_dwarf_vma (dwarf_vma value
, unsigned num_bytes
)
291 printf ("%s ", dwarf_vmatoa_1 (NULL
, value
, num_bytes
));
294 /* Print a view number in hexadecimal value, with the same width
295 print_dwarf_vma would have printed it with the same num_bytes.
296 Print blanks for zero view, unless force is nonzero. */
299 print_dwarf_view (dwarf_vma value
, unsigned num_bytes
, int force
)
307 assert (value
== (unsigned long) value
);
309 printf ("v%0*lx ", len
- 1, (unsigned long) value
);
311 printf ("%*s", len
+ 1, "");
314 /* Read in a LEB128 encoded value starting at address DATA.
315 If SIGN is true, return a signed LEB128 value.
316 If LENGTH_RETURN is not NULL, return in it the number of bytes read.
317 If STATUS_RETURN is not NULL, return with bit 0 (LSB) set if the
318 terminating byte was not found and with bit 1 set if the value
319 overflows a dwarf_vma.
320 No bytes will be read at address END or beyond. */
323 read_leb128 (unsigned char *data
,
324 const unsigned char *const end
,
326 unsigned int *length_return
,
329 dwarf_vma result
= 0;
330 unsigned int num_read
= 0;
331 unsigned int shift
= 0;
336 unsigned char byte
= *data
++;
337 unsigned char lost
, mask
;
341 if (shift
< CHAR_BIT
* sizeof (result
))
343 result
|= ((dwarf_vma
) (byte
& 0x7f)) << shift
;
344 /* These bits overflowed. */
345 lost
= byte
^ (result
>> shift
);
346 /* And this is the mask of possible overflow bits. */
347 mask
= 0x7f ^ ((dwarf_vma
) 0x7f << shift
>> shift
);
355 if ((lost
& mask
) != (sign
&& (dwarf_signed_vma
) result
< 0 ? mask
: 0))
358 if ((byte
& 0x80) == 0)
361 if (sign
&& shift
< CHAR_BIT
* sizeof (result
) && (byte
& 0x40))
362 result
|= -((dwarf_vma
) 1 << shift
);
367 if (length_return
!= NULL
)
368 *length_return
= num_read
;
369 if (status_return
!= NULL
)
370 *status_return
= status
;
375 /* Read AMOUNT bytes from PTR and store them in VAL.
376 Checks to make sure that the read will not reach or pass END.
377 FUNC chooses whether the value read is unsigned or signed, and may
378 be either byte_get or byte_get_signed. If INC is true, PTR is
379 incremented after reading the value.
380 This macro cannot protect against PTR values derived from user input.
381 The C standard sections 6.5.6 and 6.5.8 say attempts to do so using
382 pointers is undefined behaviour. */
383 #define SAFE_BYTE_GET_INTERNAL(VAL, PTR, AMOUNT, END, FUNC, INC) \
386 size_t amount = (AMOUNT); \
387 if (sizeof (VAL) < amount) \
389 error (ngettext ("internal error: attempt to read %d byte " \
390 "of data in to %d sized variable", \
391 "internal error: attempt to read %d bytes " \
392 "of data in to %d sized variable", \
394 (int) amount, (int) sizeof (VAL)); \
395 amount = sizeof (VAL); \
397 if (ENABLE_CHECKING) \
398 assert ((PTR) <= (END)); \
399 size_t avail = (END) - (PTR); \
402 if (amount > avail) \
407 (VAL) = (FUNC) ((PTR), amount); \
413 #define SAFE_BYTE_GET(VAL, PTR, AMOUNT, END) \
414 SAFE_BYTE_GET_INTERNAL (VAL, PTR, AMOUNT, END, byte_get, false)
416 #define SAFE_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \
417 SAFE_BYTE_GET_INTERNAL (VAL, PTR, AMOUNT, END, byte_get, true)
419 #define SAFE_SIGNED_BYTE_GET(VAL, PTR, AMOUNT, END) \
420 SAFE_BYTE_GET_INTERNAL (VAL, PTR, AMOUNT, END, byte_get_signed, false)
422 #define SAFE_SIGNED_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \
423 SAFE_BYTE_GET_INTERNAL (VAL, PTR, AMOUNT, END, byte_get_signed, true)
425 typedef struct State_Machine_Registers
434 unsigned char op_index
;
435 unsigned char end_sequence
;
436 /* This variable hold the number of the last entry seen
437 in the File Table. */
438 unsigned int last_file_entry
;
441 static SMR state_machine_regs
;
444 reset_state_machine (int is_stmt
)
446 state_machine_regs
.address
= 0;
447 state_machine_regs
.view
= 0;
448 state_machine_regs
.op_index
= 0;
449 state_machine_regs
.file
= 1;
450 state_machine_regs
.line
= 1;
451 state_machine_regs
.column
= 0;
452 state_machine_regs
.is_stmt
= is_stmt
;
453 state_machine_regs
.basic_block
= 0;
454 state_machine_regs
.end_sequence
= 0;
455 state_machine_regs
.last_file_entry
= 0;
458 /* Handled an extend line op.
459 Returns the number of bytes read. */
462 process_extended_line_op (unsigned char * data
,
466 unsigned char op_code
;
467 size_t len
, header_len
;
469 unsigned char *orig_data
= data
;
472 READ_ULEB (len
, data
, end
);
473 header_len
= data
- orig_data
;
475 if (len
== 0 || data
>= end
|| len
> (size_t) (end
- data
))
477 warn (_("Badly formed extended line op encountered!\n"));
483 printf (_(" Extended opcode %d: "), op_code
);
487 case DW_LNE_end_sequence
:
488 printf (_("End of Sequence\n\n"));
489 reset_state_machine (is_stmt
);
492 case DW_LNE_set_address
:
493 /* PR 17512: file: 002-100480-0.004. */
496 warn (_("Length (%lu) of DW_LNE_set_address op is too long\n"),
497 (unsigned long) len
- 1);
501 SAFE_BYTE_GET (adr
, data
, len
- 1, end
);
502 printf (_("set Address to 0x%s\n"), dwarf_vmatoa ("x", adr
));
503 state_machine_regs
.address
= adr
;
504 state_machine_regs
.view
= 0;
505 state_machine_regs
.op_index
= 0;
508 case DW_LNE_define_file
:
509 printf (_("define new File Table entry\n"));
510 printf (_(" Entry\tDir\tTime\tSize\tName\n"));
511 printf (" %d\t", ++state_machine_regs
.last_file_entry
);
517 l
= strnlen ((char *) data
, end
- data
);
521 READ_ULEB (val
, data
, end
);
522 printf ("%s\t", dwarf_vmatoa ("u", val
));
523 READ_ULEB (val
, data
, end
);
524 printf ("%s\t", dwarf_vmatoa ("u", val
));
525 READ_ULEB (val
, data
, end
);
526 printf ("%s\t", dwarf_vmatoa ("u", val
));
527 printf ("%.*s\n\n", (int) l
, name
);
530 if (((size_t) (data
- orig_data
) != len
+ header_len
) || data
>= end
)
531 warn (_("DW_LNE_define_file: Bad opcode length\n"));
534 case DW_LNE_set_discriminator
:
535 READ_ULEB (val
, data
, end
);
536 printf (_("set Discriminator to %s\n"), dwarf_vmatoa ("u", val
));
540 case DW_LNE_HP_negate_is_UV_update
:
541 printf ("DW_LNE_HP_negate_is_UV_update\n");
543 case DW_LNE_HP_push_context
:
544 printf ("DW_LNE_HP_push_context\n");
546 case DW_LNE_HP_pop_context
:
547 printf ("DW_LNE_HP_pop_context\n");
549 case DW_LNE_HP_set_file_line_column
:
550 printf ("DW_LNE_HP_set_file_line_column\n");
552 case DW_LNE_HP_set_routine_name
:
553 printf ("DW_LNE_HP_set_routine_name\n");
555 case DW_LNE_HP_set_sequence
:
556 printf ("DW_LNE_HP_set_sequence\n");
558 case DW_LNE_HP_negate_post_semantics
:
559 printf ("DW_LNE_HP_negate_post_semantics\n");
561 case DW_LNE_HP_negate_function_exit
:
562 printf ("DW_LNE_HP_negate_function_exit\n");
564 case DW_LNE_HP_negate_front_end_logical
:
565 printf ("DW_LNE_HP_negate_front_end_logical\n");
567 case DW_LNE_HP_define_proc
:
568 printf ("DW_LNE_HP_define_proc\n");
570 case DW_LNE_HP_source_file_correlation
:
572 unsigned char *edata
= data
+ len
- 1;
574 printf ("DW_LNE_HP_source_file_correlation\n");
580 READ_ULEB (opc
, data
, edata
);
584 case DW_LNE_HP_SFC_formfeed
:
585 printf (" DW_LNE_HP_SFC_formfeed\n");
587 case DW_LNE_HP_SFC_set_listing_line
:
588 READ_ULEB (val
, data
, edata
);
589 printf (" DW_LNE_HP_SFC_set_listing_line (%s)\n",
590 dwarf_vmatoa ("u", val
));
592 case DW_LNE_HP_SFC_associate
:
593 printf (" DW_LNE_HP_SFC_associate ");
594 READ_ULEB (val
, data
, edata
);
595 printf ("(%s", dwarf_vmatoa ("u", val
));
596 READ_ULEB (val
, data
, edata
);
597 printf (",%s", dwarf_vmatoa ("u", val
));
598 READ_ULEB (val
, data
, edata
);
599 printf (",%s)\n", dwarf_vmatoa ("u", val
));
602 printf (_(" UNKNOWN DW_LNE_HP_SFC opcode (%u)\n"), opc
);
612 unsigned int rlen
= len
- 1;
614 if (op_code
>= DW_LNE_lo_user
615 /* The test against DW_LNW_hi_user is redundant due to
616 the limited range of the unsigned char data type used
618 /*&& op_code <= DW_LNE_hi_user*/)
619 printf (_("user defined: "));
621 printf (_("UNKNOWN: "));
622 printf (_("length %d ["), rlen
);
624 printf (" %02x", *data
++);
630 return len
+ header_len
;
633 static const unsigned char *
634 fetch_indirect_string (dwarf_vma offset
)
636 struct dwarf_section
*section
= &debug_displays
[str
].section
;
637 const unsigned char * ret
;
639 if (section
->start
== NULL
)
640 return (const unsigned char *) _("<no .debug_str section>");
642 if (offset
>= section
->size
)
644 warn (_("DW_FORM_strp offset too big: 0x%s\n"),
645 dwarf_vmatoa ("x", offset
));
646 return (const unsigned char *) _("<offset is too big>");
649 ret
= section
->start
+ offset
;
650 /* Unfortunately we cannot rely upon the .debug_str section ending with a
651 NUL byte. Since our caller is expecting to receive a well formed C
652 string we test for the lack of a terminating byte here. */
653 if (strnlen ((const char *) ret
, section
->size
- offset
)
654 == section
->size
- offset
)
655 ret
= (const unsigned char *)
656 _("<no NUL byte at end of .debug_str section>");
661 static const unsigned char *
662 fetch_indirect_line_string (dwarf_vma offset
)
664 struct dwarf_section
*section
= &debug_displays
[line_str
].section
;
665 const unsigned char * ret
;
667 if (section
->start
== NULL
)
668 return (const unsigned char *) _("<no .debug_line_str section>");
670 if (offset
>= section
->size
)
672 warn (_("DW_FORM_line_strp offset too big: 0x%s\n"),
673 dwarf_vmatoa ("x", offset
));
674 return (const unsigned char *) _("<offset is too big>");
677 ret
= section
->start
+ offset
;
678 /* Unfortunately we cannot rely upon the .debug_line_str section ending
679 with a NUL byte. Since our caller is expecting to receive a well formed
680 C string we test for the lack of a terminating byte here. */
681 if (strnlen ((const char *) ret
, section
->size
- offset
)
682 == section
->size
- offset
)
683 ret
= (const unsigned char *)
684 _("<no NUL byte at end of .debug_line_str section>");
690 fetch_indexed_string (dwarf_vma idx
, struct cu_tu_set
*this_set
,
691 dwarf_vma offset_size
, bool dwo
)
693 enum dwarf_section_display_enum str_sec_idx
= dwo
? str_dwo
: str
;
694 enum dwarf_section_display_enum idx_sec_idx
= dwo
? str_index_dwo
: str_index
;
695 struct dwarf_section
*index_section
= &debug_displays
[idx_sec_idx
].section
;
696 struct dwarf_section
*str_section
= &debug_displays
[str_sec_idx
].section
;
697 dwarf_vma index_offset
;
698 dwarf_vma str_offset
;
700 unsigned char *curr
= index_section
->start
;
701 unsigned char *end
= curr
+ index_section
->size
;
704 if (index_section
->start
== NULL
)
705 return (dwo
? _("<no .debug_str_offsets.dwo section>")
706 : _("<no .debug_str_offsets section>"));
708 if (str_section
->start
== NULL
)
709 return (dwo
? _("<no .debug_str.dwo section>")
710 : _("<no .debug_str section>"));
712 /* FIXME: We should cache the length... */
713 SAFE_BYTE_GET_AND_INC (length
, curr
, 4, end
);
714 if (length
== 0xffffffff)
716 if (offset_size
!= 8)
717 warn (_("Expected offset size of 8 but given %s"), dwarf_vmatoa ("x", offset_size
));
718 SAFE_BYTE_GET_AND_INC (length
, curr
, 8, end
);
720 else if (offset_size
!= 4)
722 warn (_("Expected offset size of 4 but given %s"), dwarf_vmatoa ("x", offset_size
));
727 /* This is probably an old style .debug_str_offset section which
728 just contains offsets and no header (and the first offset is 0). */
729 curr
= index_section
->start
;
730 length
= index_section
->size
;
734 /* Skip the version and padding bytes.
735 We assume that they are correct. */
746 && this_set
->section_sizes
[DW_SECT_STR_OFFSETS
] < length
)
747 length
= this_set
->section_sizes
[DW_SECT_STR_OFFSETS
];
749 if (length
> (dwarf_vma
) (end
- curr
))
751 warn (_("index table size too large for section %s vs %s\n"),
752 dwarf_vmatoa ("x", length
),
753 dwarf_vmatoa ("x", index_section
->size
));
757 if (length
< offset_size
)
759 warn (_("index table size %s is too small\n"),
760 dwarf_vmatoa ("x", length
));
761 return _("<table too small>");
765 index_offset
= idx
* offset_size
;
767 if (this_set
!= NULL
)
768 index_offset
+= this_set
->section_offsets
[DW_SECT_STR_OFFSETS
];
770 if (index_offset
>= length
771 || length
- index_offset
< offset_size
)
773 warn (_("DW_FORM_GNU_str_index offset too big: 0x%s vs 0x%s\n"),
774 dwarf_vmatoa ("x", index_offset
),
775 dwarf_vmatoa ("x", length
));
776 return _("<index offset is too big>");
779 str_offset
= byte_get (curr
+ index_offset
, offset_size
);
780 str_offset
-= str_section
->address
;
781 if (str_offset
>= str_section
->size
)
783 warn (_("DW_FORM_GNU_str_index indirect offset too big: 0x%s\n"),
784 dwarf_vmatoa ("x", str_offset
));
785 return _("<indirect index offset is too big>");
788 ret
= (const char *) str_section
->start
+ str_offset
;
789 /* Unfortunately we cannot rely upon str_section ending with a NUL byte.
790 Since our caller is expecting to receive a well formed C string we test
791 for the lack of a terminating byte here. */
792 if (strnlen (ret
, str_section
->size
- str_offset
)
793 == str_section
->size
- str_offset
)
794 ret
= (const char *) _("<no NUL byte at end of section>");
800 fetch_indexed_value (dwarf_vma offset
, dwarf_vma bytes
)
802 struct dwarf_section
*section
= &debug_displays
[debug_addr
].section
;
804 if (section
->start
== NULL
)
805 return (_("<no .debug_addr section>"));
807 if (offset
+ bytes
> section
->size
)
809 warn (_("Offset into section %s too big: 0x%s\n"),
810 section
->name
, dwarf_vmatoa ("x", offset
));
811 return "<offset too big>";
814 return dwarf_vmatoa ("x", byte_get (section
->start
+ offset
, bytes
));
818 /* FIXME: There are better and more efficient ways to handle
819 these structures. For now though, I just want something that
820 is simple to implement. */
821 /* Records a single attribute in an abbrev. */
822 typedef struct abbrev_attr
824 unsigned long attribute
;
826 dwarf_signed_vma implicit_const
;
827 struct abbrev_attr
* next
;
831 /* Records a single abbrev. */
832 typedef struct abbrev_entry
834 unsigned long number
;
837 struct abbrev_attr
* first_attr
;
838 struct abbrev_attr
* last_attr
;
839 struct abbrev_entry
* next
;
843 /* Records a set of abbreviations. */
844 typedef struct abbrev_list
846 abbrev_entry
* first_abbrev
;
847 abbrev_entry
* last_abbrev
;
848 dwarf_vma abbrev_base
;
849 dwarf_vma abbrev_offset
;
850 struct abbrev_list
* next
;
851 unsigned char * start_of_next_abbrevs
;
855 /* Records all the abbrevs found so far. */
856 static struct abbrev_list
* abbrev_lists
= NULL
;
858 typedef struct abbrev_map
865 /* Maps between CU offsets and abbrev sets. */
866 static abbrev_map
* cu_abbrev_map
= NULL
;
867 static unsigned long num_abbrev_map_entries
= 0;
868 static unsigned long next_free_abbrev_map_entry
= 0;
870 #define INITIAL_NUM_ABBREV_MAP_ENTRIES 8
871 #define ABBREV_MAP_ENTRIES_INCREMENT 8
874 record_abbrev_list_for_cu (dwarf_vma start
, dwarf_vma end
, abbrev_list
* list
)
876 if (cu_abbrev_map
== NULL
)
878 num_abbrev_map_entries
= INITIAL_NUM_ABBREV_MAP_ENTRIES
;
879 cu_abbrev_map
= xmalloc (num_abbrev_map_entries
* sizeof (* cu_abbrev_map
));
881 else if (next_free_abbrev_map_entry
== num_abbrev_map_entries
)
883 num_abbrev_map_entries
+= ABBREV_MAP_ENTRIES_INCREMENT
;
884 cu_abbrev_map
= xrealloc (cu_abbrev_map
, num_abbrev_map_entries
* sizeof (* cu_abbrev_map
));
887 cu_abbrev_map
[next_free_abbrev_map_entry
].start
= start
;
888 cu_abbrev_map
[next_free_abbrev_map_entry
].end
= end
;
889 cu_abbrev_map
[next_free_abbrev_map_entry
].list
= list
;
890 next_free_abbrev_map_entry
++;
894 free_all_abbrevs (void)
898 for (list
= abbrev_lists
; list
!= NULL
;)
900 abbrev_list
* next
= list
->next
;
901 abbrev_entry
* abbrv
;
903 for (abbrv
= list
->first_abbrev
; abbrv
!= NULL
;)
905 abbrev_entry
* next_abbrev
= abbrv
->next
;
908 for (attr
= abbrv
->first_attr
; attr
;)
910 abbrev_attr
*next_attr
= attr
->next
;
928 new_abbrev_list (dwarf_vma abbrev_base
, dwarf_vma abbrev_offset
)
930 abbrev_list
* list
= (abbrev_list
*) xcalloc (sizeof * list
, 1);
932 list
->abbrev_base
= abbrev_base
;
933 list
->abbrev_offset
= abbrev_offset
;
935 list
->next
= abbrev_lists
;
942 find_abbrev_list_by_abbrev_offset (dwarf_vma abbrev_base
,
943 dwarf_vma abbrev_offset
)
947 for (list
= abbrev_lists
; list
!= NULL
; list
= list
->next
)
948 if (list
->abbrev_base
== abbrev_base
949 && list
->abbrev_offset
== abbrev_offset
)
955 /* Find the abbreviation map for the CU that includes OFFSET.
956 OFFSET is an absolute offset from the start of the .debug_info section. */
957 /* FIXME: This function is going to slow down readelf & objdump.
958 Consider using a better algorithm to mitigate this effect. */
961 find_abbrev_map_by_offset (dwarf_vma offset
)
965 for (i
= 0; i
< next_free_abbrev_map_entry
; i
++)
966 if (cu_abbrev_map
[i
].start
<= offset
967 && cu_abbrev_map
[i
].end
> offset
)
968 return cu_abbrev_map
+ i
;
974 add_abbrev (unsigned long number
,
979 abbrev_entry
* entry
;
981 entry
= (abbrev_entry
*) xmalloc (sizeof (*entry
));
983 entry
->number
= number
;
985 entry
->children
= children
;
986 entry
->first_attr
= NULL
;
987 entry
->last_attr
= NULL
;
990 assert (list
!= NULL
);
992 if (list
->first_abbrev
== NULL
)
993 list
->first_abbrev
= entry
;
995 list
->last_abbrev
->next
= entry
;
997 list
->last_abbrev
= entry
;
1001 add_abbrev_attr (unsigned long attribute
,
1003 dwarf_signed_vma implicit_const
,
1008 attr
= (abbrev_attr
*) xmalloc (sizeof (*attr
));
1010 attr
->attribute
= attribute
;
1012 attr
->implicit_const
= implicit_const
;
1015 assert (list
!= NULL
&& list
->last_abbrev
!= NULL
);
1017 if (list
->last_abbrev
->first_attr
== NULL
)
1018 list
->last_abbrev
->first_attr
= attr
;
1020 list
->last_abbrev
->last_attr
->next
= attr
;
1022 list
->last_abbrev
->last_attr
= attr
;
1025 /* Processes the (partial) contents of a .debug_abbrev section.
1026 Returns NULL if the end of the section was encountered.
1027 Returns the address after the last byte read if the end of
1028 an abbreviation set was found. */
1030 static unsigned char *
1031 process_abbrev_set (struct dwarf_section
*section
,
1032 dwarf_vma abbrev_base
,
1033 dwarf_vma abbrev_size
,
1034 dwarf_vma abbrev_offset
,
1037 if (abbrev_base
>= section
->size
1038 || abbrev_size
> section
->size
- abbrev_base
)
1040 /* PR 17531: file:4bcd9ce9. */
1041 warn (_("Debug info is corrupted, abbrev size (%lx) is larger than "
1042 "abbrev section size (%lx)\n"),
1043 (unsigned long) (abbrev_base
+ abbrev_size
),
1044 (unsigned long) section
->size
);
1047 if (abbrev_offset
>= abbrev_size
)
1049 warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than "
1050 "abbrev section size (%lx)\n"),
1051 (unsigned long) abbrev_offset
,
1052 (unsigned long) abbrev_size
);
1056 unsigned char *start
= section
->start
+ abbrev_base
;
1057 unsigned char *end
= start
+ abbrev_size
;
1058 start
+= abbrev_offset
;
1061 unsigned long entry
;
1063 unsigned long attribute
;
1066 READ_ULEB (entry
, start
, end
);
1068 /* A single zero is supposed to end the set according
1069 to the standard. If there's more, then signal that to
1076 READ_ULEB (tag
, start
, end
);
1080 children
= *start
++;
1082 add_abbrev (entry
, tag
, children
, list
);
1087 /* Initialize it due to a false compiler warning. */
1088 dwarf_signed_vma implicit_const
= -1;
1090 READ_ULEB (attribute
, start
, end
);
1094 READ_ULEB (form
, start
, end
);
1098 if (form
== DW_FORM_implicit_const
)
1100 READ_SLEB (implicit_const
, start
, end
);
1105 add_abbrev_attr (attribute
, form
, implicit_const
, list
);
1107 while (attribute
!= 0);
1110 /* Report the missing single zero which ends the section. */
1111 error (_(".debug_abbrev section not zero terminated\n"));
1117 get_TAG_name (unsigned long tag
)
1119 const char *name
= get_DW_TAG_name ((unsigned int) tag
);
1123 static char buffer
[100];
1125 if (tag
>= DW_TAG_lo_user
&& tag
<= DW_TAG_hi_user
)
1126 snprintf (buffer
, sizeof (buffer
), _("User TAG value: %#lx"), tag
);
1128 snprintf (buffer
, sizeof (buffer
), _("Unknown TAG value: %#lx"), tag
);
1136 get_FORM_name (unsigned long form
)
1141 return "DW_FORM value: 0";
1143 name
= get_DW_FORM_name (form
);
1146 static char buffer
[100];
1148 snprintf (buffer
, sizeof (buffer
), _("Unknown FORM value: %lx"), form
);
1156 get_IDX_name (unsigned long idx
)
1158 const char *name
= get_DW_IDX_name ((unsigned int) idx
);
1162 static char buffer
[100];
1164 snprintf (buffer
, sizeof (buffer
), _("Unknown IDX value: %lx"), idx
);
1171 static unsigned char *
1172 display_block (unsigned char *data
,
1174 const unsigned char * const end
, char delimiter
)
1178 printf (_("%c%s byte block: "), delimiter
, dwarf_vmatoa ("u", length
));
1180 return (unsigned char *) end
;
1182 maxlen
= (dwarf_vma
) (end
- data
);
1183 length
= length
> maxlen
? maxlen
: length
;
1186 printf ("%lx ", (unsigned long) byte_get (data
++, 1));
1192 decode_location_expression (unsigned char * data
,
1193 unsigned int pointer_size
,
1194 unsigned int offset_size
,
1197 dwarf_vma cu_offset
,
1198 struct dwarf_section
* section
)
1202 dwarf_signed_vma svalue
;
1203 unsigned char *end
= data
+ length
;
1204 int need_frame_base
= 0;
1213 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
1214 printf ("DW_OP_addr: %s", dwarf_vmatoa ("x", uvalue
));
1217 printf ("DW_OP_deref");
1220 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1221 printf ("DW_OP_const1u: %lu", (unsigned long) uvalue
);
1224 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 1, end
);
1225 printf ("DW_OP_const1s: %ld", (long) svalue
);
1228 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 2, end
);
1229 printf ("DW_OP_const2u: %lu", (unsigned long) uvalue
);
1232 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 2, end
);
1233 printf ("DW_OP_const2s: %ld", (long) svalue
);
1236 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
1237 printf ("DW_OP_const4u: %lu", (unsigned long) uvalue
);
1240 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 4, end
);
1241 printf ("DW_OP_const4s: %ld", (long) svalue
);
1244 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
1245 printf ("DW_OP_const8u: %lu ", (unsigned long) uvalue
);
1246 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
1247 printf ("%lu", (unsigned long) uvalue
);
1250 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 4, end
);
1251 printf ("DW_OP_const8s: %ld ", (long) svalue
);
1252 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 4, end
);
1253 printf ("%ld", (long) svalue
);
1256 READ_ULEB (uvalue
, data
, end
);
1257 printf ("DW_OP_constu: %s", dwarf_vmatoa ("u", uvalue
));
1260 READ_SLEB (svalue
, data
, end
);
1261 printf ("DW_OP_consts: %s", dwarf_vmatoa ("d", svalue
));
1264 printf ("DW_OP_dup");
1267 printf ("DW_OP_drop");
1270 printf ("DW_OP_over");
1273 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1274 printf ("DW_OP_pick: %ld", (unsigned long) uvalue
);
1277 printf ("DW_OP_swap");
1280 printf ("DW_OP_rot");
1283 printf ("DW_OP_xderef");
1286 printf ("DW_OP_abs");
1289 printf ("DW_OP_and");
1292 printf ("DW_OP_div");
1295 printf ("DW_OP_minus");
1298 printf ("DW_OP_mod");
1301 printf ("DW_OP_mul");
1304 printf ("DW_OP_neg");
1307 printf ("DW_OP_not");
1310 printf ("DW_OP_or");
1313 printf ("DW_OP_plus");
1315 case DW_OP_plus_uconst
:
1316 READ_ULEB (uvalue
, data
, end
);
1317 printf ("DW_OP_plus_uconst: %s", dwarf_vmatoa ("u", uvalue
));
1320 printf ("DW_OP_shl");
1323 printf ("DW_OP_shr");
1326 printf ("DW_OP_shra");
1329 printf ("DW_OP_xor");
1332 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 2, end
);
1333 printf ("DW_OP_bra: %ld", (long) svalue
);
1336 printf ("DW_OP_eq");
1339 printf ("DW_OP_ge");
1342 printf ("DW_OP_gt");
1345 printf ("DW_OP_le");
1348 printf ("DW_OP_lt");
1351 printf ("DW_OP_ne");
1354 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 2, end
);
1355 printf ("DW_OP_skip: %ld", (long) svalue
);
1390 printf ("DW_OP_lit%d", op
- DW_OP_lit0
);
1425 printf ("DW_OP_reg%d (%s)", op
- DW_OP_reg0
,
1426 regname (op
- DW_OP_reg0
, 1));
1461 READ_SLEB (svalue
, data
, end
);
1462 printf ("DW_OP_breg%d (%s): %s", op
- DW_OP_breg0
,
1463 regname (op
- DW_OP_breg0
, 1), dwarf_vmatoa ("d", svalue
));
1467 READ_ULEB (uvalue
, data
, end
);
1468 printf ("DW_OP_regx: %s (%s)",
1469 dwarf_vmatoa ("u", uvalue
), regname (uvalue
, 1));
1472 need_frame_base
= 1;
1473 READ_SLEB (svalue
, data
, end
);
1474 printf ("DW_OP_fbreg: %s", dwarf_vmatoa ("d", svalue
));
1477 READ_ULEB (uvalue
, data
, end
);
1478 READ_SLEB (svalue
, data
, end
);
1479 printf ("DW_OP_bregx: %s (%s) %s",
1480 dwarf_vmatoa ("u", uvalue
), regname (uvalue
, 1),
1481 dwarf_vmatoa ("d", svalue
));
1484 READ_ULEB (uvalue
, data
, end
);
1485 printf ("DW_OP_piece: %s", dwarf_vmatoa ("u", uvalue
));
1487 case DW_OP_deref_size
:
1488 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1489 printf ("DW_OP_deref_size: %ld", (long) uvalue
);
1491 case DW_OP_xderef_size
:
1492 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1493 printf ("DW_OP_xderef_size: %ld", (long) uvalue
);
1496 printf ("DW_OP_nop");
1499 /* DWARF 3 extensions. */
1500 case DW_OP_push_object_address
:
1501 printf ("DW_OP_push_object_address");
1504 /* FIXME: Strictly speaking for 64-bit DWARF3 files
1505 this ought to be an 8-byte wide computation. */
1506 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 2, end
);
1507 printf ("DW_OP_call2: <0x%s>",
1508 dwarf_vmatoa ("x", svalue
+ cu_offset
));
1511 /* FIXME: Strictly speaking for 64-bit DWARF3 files
1512 this ought to be an 8-byte wide computation. */
1513 SAFE_SIGNED_BYTE_GET_AND_INC (svalue
, data
, 4, end
);
1514 printf ("DW_OP_call4: <0x%s>",
1515 dwarf_vmatoa ("x", svalue
+ cu_offset
));
1517 case DW_OP_call_ref
:
1518 /* FIXME: Strictly speaking for 64-bit DWARF3 files
1519 this ought to be an 8-byte wide computation. */
1520 if (dwarf_version
== -1)
1522 printf (_("(DW_OP_call_ref in frame info)"));
1523 /* No way to tell where the next op is, so just bail. */
1524 return need_frame_base
;
1526 if (dwarf_version
== 2)
1528 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
1532 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
1534 printf ("DW_OP_call_ref: <0x%s>", dwarf_vmatoa ("x", uvalue
));
1536 case DW_OP_form_tls_address
:
1537 printf ("DW_OP_form_tls_address");
1539 case DW_OP_call_frame_cfa
:
1540 printf ("DW_OP_call_frame_cfa");
1542 case DW_OP_bit_piece
:
1543 printf ("DW_OP_bit_piece: ");
1544 READ_ULEB (uvalue
, data
, end
);
1545 printf (_("size: %s "), dwarf_vmatoa ("u", uvalue
));
1546 READ_ULEB (uvalue
, data
, end
);
1547 printf (_("offset: %s "), dwarf_vmatoa ("u", uvalue
));
1550 /* DWARF 4 extensions. */
1551 case DW_OP_stack_value
:
1552 printf ("DW_OP_stack_value");
1555 case DW_OP_implicit_value
:
1556 printf ("DW_OP_implicit_value");
1557 READ_ULEB (uvalue
, data
, end
);
1558 data
= display_block (data
, uvalue
, end
, ' ');
1561 /* GNU extensions. */
1562 case DW_OP_GNU_push_tls_address
:
1563 printf (_("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown"));
1565 case DW_OP_GNU_uninit
:
1566 printf ("DW_OP_GNU_uninit");
1567 /* FIXME: Is there data associated with this OP ? */
1569 case DW_OP_GNU_encoded_addr
:
1576 addr
= get_encoded_value (&data
, encoding
, section
, end
);
1578 printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding
);
1579 print_dwarf_vma (addr
, pointer_size
);
1582 case DW_OP_implicit_pointer
:
1583 case DW_OP_GNU_implicit_pointer
:
1584 /* FIXME: Strictly speaking for 64-bit DWARF3 files
1585 this ought to be an 8-byte wide computation. */
1586 if (dwarf_version
== -1)
1588 printf (_("(%s in frame info)"),
1589 (op
== DW_OP_implicit_pointer
1590 ? "DW_OP_implicit_pointer"
1591 : "DW_OP_GNU_implicit_pointer"));
1592 /* No way to tell where the next op is, so just bail. */
1593 return need_frame_base
;
1595 if (dwarf_version
== 2)
1597 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
1601 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
1603 READ_SLEB (svalue
, data
, end
);
1604 printf ("%s: <0x%s> %s",
1605 (op
== DW_OP_implicit_pointer
1606 ? "DW_OP_implicit_pointer" : "DW_OP_GNU_implicit_pointer"),
1607 dwarf_vmatoa ("x", uvalue
),
1608 dwarf_vmatoa ("d", svalue
));
1610 case DW_OP_entry_value
:
1611 case DW_OP_GNU_entry_value
:
1612 READ_ULEB (uvalue
, data
, end
);
1613 /* PR 17531: file: 0cc9cd00. */
1614 if (uvalue
> (dwarf_vma
) (end
- data
))
1615 uvalue
= end
- data
;
1616 printf ("%s: (", (op
== DW_OP_entry_value
? "DW_OP_entry_value"
1617 : "DW_OP_GNU_entry_value"));
1618 if (decode_location_expression (data
, pointer_size
, offset_size
,
1619 dwarf_version
, uvalue
,
1620 cu_offset
, section
))
1621 need_frame_base
= 1;
1625 case DW_OP_const_type
:
1626 case DW_OP_GNU_const_type
:
1627 READ_ULEB (uvalue
, data
, end
);
1628 printf ("%s: <0x%s> ",
1629 (op
== DW_OP_const_type
? "DW_OP_const_type"
1630 : "DW_OP_GNU_const_type"),
1631 dwarf_vmatoa ("x", cu_offset
+ uvalue
));
1632 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1633 data
= display_block (data
, uvalue
, end
, ' ');
1635 case DW_OP_regval_type
:
1636 case DW_OP_GNU_regval_type
:
1637 READ_ULEB (uvalue
, data
, end
);
1638 printf ("%s: %s (%s)",
1639 (op
== DW_OP_regval_type
? "DW_OP_regval_type"
1640 : "DW_OP_GNU_regval_type"),
1641 dwarf_vmatoa ("u", uvalue
), regname (uvalue
, 1));
1642 READ_ULEB (uvalue
, data
, end
);
1643 printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset
+ uvalue
));
1645 case DW_OP_deref_type
:
1646 case DW_OP_GNU_deref_type
:
1647 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1649 (op
== DW_OP_deref_type
? "DW_OP_deref_type"
1650 : "DW_OP_GNU_deref_type"),
1652 READ_ULEB (uvalue
, data
, end
);
1653 printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset
+ uvalue
));
1656 case DW_OP_GNU_convert
:
1657 READ_ULEB (uvalue
, data
, end
);
1658 printf ("%s <0x%s>",
1659 (op
== DW_OP_convert
? "DW_OP_convert" : "DW_OP_GNU_convert"),
1660 dwarf_vmatoa ("x", uvalue
? cu_offset
+ uvalue
: 0));
1662 case DW_OP_reinterpret
:
1663 case DW_OP_GNU_reinterpret
:
1664 READ_ULEB (uvalue
, data
, end
);
1665 printf ("%s <0x%s>",
1666 (op
== DW_OP_reinterpret
? "DW_OP_reinterpret"
1667 : "DW_OP_GNU_reinterpret"),
1668 dwarf_vmatoa ("x", uvalue
? cu_offset
+ uvalue
: 0));
1670 case DW_OP_GNU_parameter_ref
:
1671 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
1672 printf ("DW_OP_GNU_parameter_ref: <0x%s>",
1673 dwarf_vmatoa ("x", cu_offset
+ uvalue
));
1675 case DW_OP_GNU_addr_index
:
1676 READ_ULEB (uvalue
, data
, end
);
1677 printf ("DW_OP_GNU_addr_index <0x%s>", dwarf_vmatoa ("x", uvalue
));
1679 case DW_OP_GNU_const_index
:
1680 READ_ULEB (uvalue
, data
, end
);
1681 printf ("DW_OP_GNU_const_index <0x%s>", dwarf_vmatoa ("x", uvalue
));
1683 case DW_OP_GNU_variable_value
:
1684 /* FIXME: Strictly speaking for 64-bit DWARF3 files
1685 this ought to be an 8-byte wide computation. */
1686 if (dwarf_version
== -1)
1688 printf (_("(DW_OP_GNU_variable_value in frame info)"));
1689 /* No way to tell where the next op is, so just bail. */
1690 return need_frame_base
;
1692 if (dwarf_version
== 2)
1694 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
1698 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
1700 printf ("DW_OP_GNU_variable_value: <0x%s>", dwarf_vmatoa ("x", uvalue
));
1703 /* HP extensions. */
1704 case DW_OP_HP_is_value
:
1705 printf ("DW_OP_HP_is_value");
1706 /* FIXME: Is there data associated with this OP ? */
1708 case DW_OP_HP_fltconst4
:
1709 printf ("DW_OP_HP_fltconst4");
1710 /* FIXME: Is there data associated with this OP ? */
1712 case DW_OP_HP_fltconst8
:
1713 printf ("DW_OP_HP_fltconst8");
1714 /* FIXME: Is there data associated with this OP ? */
1716 case DW_OP_HP_mod_range
:
1717 printf ("DW_OP_HP_mod_range");
1718 /* FIXME: Is there data associated with this OP ? */
1720 case DW_OP_HP_unmod_range
:
1721 printf ("DW_OP_HP_unmod_range");
1722 /* FIXME: Is there data associated with this OP ? */
1725 printf ("DW_OP_HP_tls");
1726 /* FIXME: Is there data associated with this OP ? */
1729 /* PGI (STMicroelectronics) extensions. */
1730 case DW_OP_PGI_omp_thread_num
:
1731 /* Pushes the thread number for the current thread as it would be
1732 returned by the standard OpenMP library function:
1733 omp_get_thread_num(). The "current thread" is the thread for
1734 which the expression is being evaluated. */
1735 printf ("DW_OP_PGI_omp_thread_num");
1739 if (op
>= DW_OP_lo_user
1740 && op
<= DW_OP_hi_user
)
1741 printf (_("(User defined location op 0x%x)"), op
);
1743 printf (_("(Unknown location op 0x%x)"), op
);
1744 /* No way to tell where the next op is, so just bail. */
1745 return need_frame_base
;
1748 /* Separate the ops. */
1753 return need_frame_base
;
1756 /* Find the CU or TU set corresponding to the given CU_OFFSET.
1757 This is used for DWARF package files. */
1759 static struct cu_tu_set
*
1760 find_cu_tu_set_v2 (dwarf_vma cu_offset
, int do_types
)
1762 struct cu_tu_set
*p
;
1764 unsigned int dw_sect
;
1770 dw_sect
= DW_SECT_TYPES
;
1776 dw_sect
= DW_SECT_INFO
;
1780 if (p
->section_offsets
[dw_sect
] == cu_offset
)
1789 fetch_alt_indirect_string (dwarf_vma offset
)
1793 if (! do_follow_links
)
1796 if (first_separate_info
== NULL
)
1797 return _("<no links available>");
1799 for (i
= first_separate_info
; i
!= NULL
; i
= i
->next
)
1801 struct dwarf_section
* section
;
1804 if (! load_debug_section (separate_debug_str
, i
->handle
))
1807 section
= &debug_displays
[separate_debug_str
].section
;
1809 if (section
->start
== NULL
)
1812 if (offset
>= section
->size
)
1815 ret
= (const char *) (section
->start
+ offset
);
1816 /* Unfortunately we cannot rely upon the .debug_str section ending with a
1817 NUL byte. Since our caller is expecting to receive a well formed C
1818 string we test for the lack of a terminating byte here. */
1819 if (strnlen ((const char *) ret
, section
->size
- offset
)
1820 == section
->size
- offset
)
1821 return _("<no NUL byte at end of alt .debug_str section>");
1826 warn (_("DW_FORM_GNU_strp_alt offset (%s) too big or no string sections available\n"),
1827 dwarf_vmatoa ("x", offset
));
1828 return _("<offset is too big>");
1832 get_AT_name (unsigned long attribute
)
1837 return "DW_AT value: 0";
1839 /* One value is shared by the MIPS and HP extensions: */
1840 if (attribute
== DW_AT_MIPS_fde
)
1841 return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable";
1843 name
= get_DW_AT_name (attribute
);
1847 static char buffer
[100];
1849 snprintf (buffer
, sizeof (buffer
), _("Unknown AT value: %lx"),
1858 add_dwo_info (const char * value
, dwarf_vma cu_offset
, dwo_type type
)
1860 dwo_info
* dwinfo
= xmalloc (sizeof * dwinfo
);
1862 dwinfo
->type
= type
;
1863 dwinfo
->value
= value
;
1864 dwinfo
->cu_offset
= cu_offset
;
1865 dwinfo
->next
= first_dwo_info
;
1866 first_dwo_info
= dwinfo
;
1870 add_dwo_name (const char * name
, dwarf_vma cu_offset
)
1872 add_dwo_info (name
, cu_offset
, DWO_NAME
);
1876 add_dwo_dir (const char * dir
, dwarf_vma cu_offset
)
1878 add_dwo_info (dir
, cu_offset
, DWO_DIR
);
1882 add_dwo_id (const char * id
, dwarf_vma cu_offset
)
1884 add_dwo_info (id
, cu_offset
, DWO_ID
);
1888 free_dwo_info (void)
1893 for (dwinfo
= first_dwo_info
; dwinfo
!= NULL
; dwinfo
= next
)
1895 next
= dwinfo
->next
;
1898 first_dwo_info
= NULL
;
1901 /* Ensure that START + UVALUE is less than END.
1902 Return an adjusted UVALUE if necessary to ensure this relationship. */
1904 static inline dwarf_vma
1905 check_uvalue (const unsigned char * start
,
1907 const unsigned char * end
)
1909 dwarf_vma max_uvalue
= end
- start
;
1911 /* See PR 17512: file: 008-103549-0.001:0.1.
1912 and PR 24829 for examples of where these tests are triggered. */
1913 if (uvalue
> max_uvalue
)
1915 warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue
);
1916 uvalue
= max_uvalue
;
1922 static unsigned char *
1923 skip_attr_bytes (unsigned long form
,
1924 unsigned char *data
,
1926 dwarf_vma pointer_size
,
1927 dwarf_vma offset_size
,
1929 dwarf_vma
*value_return
)
1931 dwarf_signed_vma svalue
;
1932 dwarf_vma uvalue
= 0;
1939 case DW_FORM_ref_addr
:
1940 if (dwarf_version
== 2)
1941 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
1942 else if (dwarf_version
> 2)
1943 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
1949 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
1953 case DW_FORM_line_strp
:
1954 case DW_FORM_sec_offset
:
1955 case DW_FORM_GNU_ref_alt
:
1956 case DW_FORM_GNU_strp_alt
:
1957 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
1960 case DW_FORM_flag_present
:
1968 case DW_FORM_addrx1
:
1969 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
1973 case DW_FORM_addrx3
:
1974 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 3, end
);
1980 case DW_FORM_addrx2
:
1981 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 2, end
);
1987 case DW_FORM_addrx4
:
1988 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
1992 READ_SLEB (svalue
, data
, end
);
1996 case DW_FORM_ref_udata
:
1998 case DW_FORM_GNU_str_index
:
2000 case DW_FORM_GNU_addr_index
:
2002 READ_ULEB (uvalue
, data
, end
);
2006 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 8, end
);
2010 case DW_FORM_ref_sig8
:
2014 case DW_FORM_data16
:
2018 case DW_FORM_string
:
2019 inc
= strnlen ((char *) data
, end
- data
) + 1;
2023 case DW_FORM_exprloc
:
2024 READ_ULEB (uvalue
, data
, end
);
2028 case DW_FORM_block1
:
2029 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
2033 case DW_FORM_block2
:
2034 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 2, end
);
2038 case DW_FORM_block4
:
2039 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
2043 case DW_FORM_indirect
:
2044 READ_ULEB (form
, data
, end
);
2045 if (form
== DW_FORM_implicit_const
)
2046 SKIP_ULEB (data
, end
);
2047 return skip_attr_bytes (form
, data
, end
, pointer_size
, offset_size
,
2048 dwarf_version
, value_return
);
2054 * value_return
= uvalue
;
2055 if (inc
<= (dwarf_vma
) (end
- data
))
2062 /* Given form FORM with value UVALUE, locate and return the abbreviation
2063 associated with it. */
2065 static abbrev_entry
*
2066 get_type_abbrev_from_form (unsigned long form
,
2067 unsigned long uvalue
,
2068 dwarf_vma cu_offset
,
2069 unsigned char *cu_end
,
2070 const struct dwarf_section
*section
,
2071 unsigned long *abbrev_num_return
,
2072 unsigned char **data_return
,
2073 abbrev_map
**map_return
)
2075 unsigned long abbrev_number
;
2077 abbrev_entry
* entry
;
2078 unsigned char * data
;
2080 if (abbrev_num_return
!= NULL
)
2081 * abbrev_num_return
= 0;
2082 if (data_return
!= NULL
)
2083 * data_return
= NULL
;
2087 case DW_FORM_GNU_ref_alt
:
2088 case DW_FORM_ref_sig8
:
2089 /* FIXME: We are unable to handle this form at the moment. */
2092 case DW_FORM_ref_addr
:
2093 if (uvalue
>= section
->size
)
2095 warn (_("Unable to resolve ref_addr form: uvalue %lx > section size %lx (%s)\n"),
2096 uvalue
, (long) section
->size
, section
->name
);
2101 case DW_FORM_ref_sup4
:
2102 case DW_FORM_ref_sup8
:
2109 case DW_FORM_ref_udata
:
2110 if (uvalue
+ cu_offset
> (size_t) (cu_end
- section
->start
))
2112 warn (_("Unable to resolve ref form: uvalue %lx + cu_offset %lx > CU size %lx\n"),
2113 uvalue
, (long) cu_offset
, (long) (cu_end
- section
->start
));
2116 uvalue
+= cu_offset
;
2119 /* FIXME: Are there other DW_FORMs that can be used by types ? */
2122 warn (_("Unexpected form %lx encountered whilst finding abbreviation for type\n"), form
);
2126 data
= (unsigned char *) section
->start
+ uvalue
;
2127 map
= find_abbrev_map_by_offset (uvalue
);
2131 warn (_("Unable to find abbreviations for CU offset %#lx\n"), uvalue
);
2134 if (map
->list
== NULL
)
2136 warn (_("Empty abbreviation list encountered for CU offset %lx\n"), uvalue
);
2140 if (map_return
!= NULL
)
2142 if (form
== DW_FORM_ref_addr
)
2148 READ_ULEB (abbrev_number
, data
, section
->start
+ section
->size
);
2150 for (entry
= map
->list
->first_abbrev
; entry
!= NULL
; entry
= entry
->next
)
2151 if (entry
->number
== abbrev_number
)
2154 if (abbrev_num_return
!= NULL
)
2155 * abbrev_num_return
= abbrev_number
;
2157 if (data_return
!= NULL
)
2158 * data_return
= data
;
2161 warn (_("Unable to find entry for abbreviation %lu\n"), abbrev_number
);
2166 /* Return IS_SIGNED set to TRUE if the type using abbreviation ENTRY
2167 can be determined to be a signed type. The data for ENTRY can be
2168 found starting at DATA. */
2171 get_type_signedness (abbrev_entry
*entry
,
2172 const struct dwarf_section
*section
,
2173 unsigned char *data
,
2175 dwarf_vma cu_offset
,
2176 dwarf_vma pointer_size
,
2177 dwarf_vma offset_size
,
2180 unsigned int nesting
)
2184 * is_signed
= false;
2186 #define MAX_NESTING 20
2187 if (nesting
> MAX_NESTING
)
2189 /* FIXME: Warn - or is this expected ?
2190 NB/ We need to avoid infinite recursion. */
2194 for (attr
= entry
->first_attr
;
2195 attr
!= NULL
&& attr
->attribute
;
2198 unsigned char * orig_data
= data
;
2199 dwarf_vma uvalue
= 0;
2201 data
= skip_attr_bytes (attr
->form
, data
, end
, pointer_size
,
2202 offset_size
, dwarf_version
, & uvalue
);
2206 switch (attr
->attribute
)
2208 case DW_AT_linkage_name
:
2212 if (attr
->form
== DW_FORM_strp
)
2213 printf (", %s", fetch_indirect_string (uvalue
));
2214 else if (attr
->form
== DW_FORM_string
)
2215 printf (", %.*s", (int) (end
- orig_data
), orig_data
);
2222 abbrev_entry
*type_abbrev
;
2223 unsigned char *type_data
;
2226 type_abbrev
= get_type_abbrev_from_form (attr
->form
,
2231 NULL
/* abbrev num return */,
2234 if (type_abbrev
== NULL
)
2237 get_type_signedness (type_abbrev
, section
, type_data
,
2238 map
? section
->start
+ map
->end
: end
,
2239 map
? map
->start
: cu_offset
,
2240 pointer_size
, offset_size
, dwarf_version
,
2241 is_signed
, nesting
+ 1);
2245 case DW_AT_encoding
:
2246 /* Determine signness. */
2249 case DW_ATE_address
:
2250 /* FIXME - some architectures have signed addresses. */
2251 case DW_ATE_boolean
:
2252 case DW_ATE_unsigned
:
2253 case DW_ATE_unsigned_char
:
2254 case DW_ATE_unsigned_fixed
:
2255 * is_signed
= false;
2259 case DW_ATE_complex_float
:
2262 case DW_ATE_signed_char
:
2263 case DW_ATE_imaginary_float
:
2264 case DW_ATE_decimal_float
:
2265 case DW_ATE_signed_fixed
:
2275 read_and_print_leb128 (unsigned char *data
,
2276 unsigned int *bytes_read
,
2277 unsigned const char *end
,
2281 dwarf_vma val
= read_leb128 (data
, end
, is_signed
, bytes_read
, &status
);
2283 report_leb_status (status
);
2285 printf ("%s", dwarf_vmatoa (is_signed
? "d" : "u", val
));
2289 display_discr_list (unsigned long form
,
2291 unsigned char * data
,
2294 unsigned char *end
= data
;
2298 printf ("[default]");
2305 case DW_FORM_block1
:
2306 case DW_FORM_block2
:
2307 case DW_FORM_block4
:
2308 /* Move data pointer back to the start of the byte array. */
2312 printf ("<corrupt>\n");
2313 warn (_("corrupt discr_list - not using a block form\n"));
2319 printf ("<corrupt>\n");
2320 warn (_("corrupt discr_list - block not long enough\n"));
2324 bool is_signed
= (level
> 0 && level
<= MAX_CU_NESTING
2325 ? level_type_signed
[level
- 1] : false);
2330 unsigned char discriminant
;
2331 unsigned int bytes_read
;
2333 SAFE_BYTE_GET_AND_INC (discriminant
, data
, 1, end
);
2335 switch (discriminant
)
2339 read_and_print_leb128 (data
, & bytes_read
, end
, is_signed
);
2345 read_and_print_leb128 (data
, & bytes_read
, end
, is_signed
);
2349 read_and_print_leb128 (data
, & bytes_read
, end
, is_signed
);
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
);
2515 case DW_FORM_implicit_const
:
2516 uvalue
= implicit_const
;
2522 case DW_FORM_ref_addr
:
2524 printf ("%c<0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
));
2527 case DW_FORM_GNU_ref_alt
:
2531 /* We have already printed the form name. */
2532 printf ("%c<0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
));
2534 printf ("%c<alt 0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
));
2536 /* FIXME: Follow the reference... */
2542 case DW_FORM_ref_sup4
:
2543 case DW_FORM_ref_udata
:
2545 printf ("%c<0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
+ cu_offset
));
2550 case DW_FORM_sec_offset
:
2552 printf ("%c0x%s", delimiter
, dwarf_vmatoa ("x", uvalue
));
2555 case DW_FORM_flag_present
:
2562 printf ("%c%s", delimiter
, dwarf_vmatoa ("d", uvalue
));
2565 case DW_FORM_implicit_const
:
2567 printf ("%c%s", delimiter
, dwarf_vmatoa ("d", implicit_const
));
2570 case DW_FORM_ref_sup8
:
2575 dwarf_vma utmp
= uvalue
;
2576 if (form
== DW_FORM_ref8
)
2578 printf ("%c0x%s", delimiter
, dwarf_vmatoa ("x", utmp
));
2582 case DW_FORM_data16
:
2585 uvalue_hi
== 0 ? "" : dwarf_vmatoa ("x", uvalue_hi
),
2586 dwarf_vmatoa_1 ("x", uvalue
, uvalue_hi
== 0 ? 0 : 8));
2589 case DW_FORM_string
:
2591 printf ("%c%.*s", delimiter
, (int) (end
- data
), data
);
2592 data
+= strnlen ((char *) data
, end
- data
);
2598 case DW_FORM_exprloc
:
2599 READ_ULEB (uvalue
, data
, end
);
2602 if (block_start
>= end
)
2604 warn (_("Block ends prematurely\n"));
2609 uvalue
= check_uvalue (block_start
, uvalue
, end
);
2612 data
= block_start
+ uvalue
;
2614 data
= display_block (block_start
, uvalue
, end
, delimiter
);
2617 case DW_FORM_block1
:
2618 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
2621 case DW_FORM_block2
:
2622 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 2, end
);
2625 case DW_FORM_block4
:
2626 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
2633 /* We have already displayed the form name. */
2634 printf (_("%c(offset: 0x%s): %s"), delimiter
,
2635 dwarf_vmatoa ("x", uvalue
),
2636 fetch_indirect_string (uvalue
));
2638 printf (_("%c(indirect string, offset: 0x%s): %s"), delimiter
,
2639 dwarf_vmatoa ("x", uvalue
),
2640 fetch_indirect_string (uvalue
));
2644 case DW_FORM_line_strp
:
2648 /* We have already displayed the form name. */
2649 printf (_("%c(offset: 0x%s): %s"), delimiter
,
2650 dwarf_vmatoa ("x", uvalue
),
2651 fetch_indirect_line_string (uvalue
));
2653 printf (_("%c(indirect line string, offset: 0x%s): %s"), delimiter
,
2654 dwarf_vmatoa ("x", uvalue
),
2655 fetch_indirect_line_string (uvalue
));
2659 case DW_FORM_GNU_str_index
:
2667 const char *suffix
= strrchr (section
->name
, '.');
2668 bool dwo
= suffix
&& strcmp (suffix
, ".dwo") == 0;
2671 /* We have already displayed the form name. */
2672 printf (_("%c(offset: 0x%s): %s"), delimiter
,
2673 dwarf_vmatoa ("x", uvalue
),
2674 fetch_indexed_string (uvalue
, this_set
, offset_size
, dwo
));
2676 printf (_("%c(indexed string: 0x%s): %s"), delimiter
,
2677 dwarf_vmatoa ("x", uvalue
),
2678 fetch_indexed_string (uvalue
, this_set
, offset_size
, dwo
));
2682 case DW_FORM_GNU_strp_alt
:
2686 /* We have already displayed the form name. */
2687 printf (_("%c(offset: 0x%s) %s"), delimiter
,
2688 dwarf_vmatoa ("x", uvalue
),
2689 fetch_alt_indirect_string (uvalue
));
2691 printf (_("%c(alt indirect string, offset: 0x%s) %s"), delimiter
,
2692 dwarf_vmatoa ("x", uvalue
),
2693 fetch_alt_indirect_string (uvalue
));
2697 case DW_FORM_indirect
:
2698 /* Handled above. */
2701 case DW_FORM_ref_sig8
:
2703 printf ("%c%s: 0x%s", delimiter
, do_wide
? "" : "signature",
2704 dwarf_vmatoa ("x", uvalue
));
2707 case DW_FORM_GNU_addr_index
:
2709 case DW_FORM_addrx1
:
2710 case DW_FORM_addrx2
:
2711 case DW_FORM_addrx3
:
2712 case DW_FORM_addrx4
:
2718 if (debug_info_p
== NULL
)
2720 else if (debug_info_p
->addr_base
== DEBUG_INFO_UNAVAILABLE
)
2723 base
= debug_info_p
->addr_base
;
2725 offset
= base
+ uvalue
* pointer_size
;
2728 /* We have already displayed the form name. */
2729 printf (_("%c(index: 0x%s): %s"), delimiter
,
2730 dwarf_vmatoa ("x", uvalue
),
2731 fetch_indexed_value (offset
, pointer_size
));
2733 printf (_("%c(addr_index: 0x%s): %s"), delimiter
,
2734 dwarf_vmatoa ("x", uvalue
),
2735 fetch_indexed_value (offset
, pointer_size
));
2739 case DW_FORM_strp_sup
:
2741 printf ("%c<0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
+ cu_offset
));
2745 warn (_("Unrecognized form: 0x%lx\n"), form
);
2749 if ((do_loc
|| do_debug_loc
|| do_debug_ranges
)
2750 && num_debug_info_entries
== 0
2751 && debug_info_p
!= NULL
)
2755 case DW_AT_frame_base
:
2756 have_frame_base
= 1;
2758 case DW_AT_location
:
2759 case DW_AT_GNU_locviews
:
2760 case DW_AT_string_length
:
2761 case DW_AT_return_addr
:
2762 case DW_AT_data_member_location
:
2763 case DW_AT_vtable_elem_location
:
2765 case DW_AT_static_link
:
2766 case DW_AT_use_location
:
2767 case DW_AT_call_value
:
2768 case DW_AT_GNU_call_site_value
:
2769 case DW_AT_call_data_value
:
2770 case DW_AT_GNU_call_site_data_value
:
2771 case DW_AT_call_target
:
2772 case DW_AT_GNU_call_site_target
:
2773 case DW_AT_call_target_clobbered
:
2774 case DW_AT_GNU_call_site_target_clobbered
:
2775 if ((dwarf_version
< 4
2776 && (form
== DW_FORM_data4
|| form
== DW_FORM_data8
))
2777 || form
== DW_FORM_sec_offset
)
2779 /* Process location list. */
2780 unsigned int lmax
= debug_info_p
->max_loc_offsets
;
2781 unsigned int num
= debug_info_p
->num_loc_offsets
;
2783 if (lmax
== 0 || num
>= lmax
)
2786 debug_info_p
->loc_offsets
= (dwarf_vma
*)
2787 xcrealloc (debug_info_p
->loc_offsets
,
2788 lmax
, sizeof (*debug_info_p
->loc_offsets
));
2789 debug_info_p
->loc_views
= (dwarf_vma
*)
2790 xcrealloc (debug_info_p
->loc_views
,
2791 lmax
, sizeof (*debug_info_p
->loc_views
));
2792 debug_info_p
->have_frame_base
= (int *)
2793 xcrealloc (debug_info_p
->have_frame_base
,
2794 lmax
, sizeof (*debug_info_p
->have_frame_base
));
2795 debug_info_p
->max_loc_offsets
= lmax
;
2797 if (this_set
!= NULL
)
2798 uvalue
+= this_set
->section_offsets
[DW_SECT_LOC
];
2799 debug_info_p
->have_frame_base
[num
] = have_frame_base
;
2800 if (attribute
!= DW_AT_GNU_locviews
)
2802 /* Corrupt DWARF info can produce more offsets than views.
2803 See PR 23062 for an example. */
2804 if (debug_info_p
->num_loc_offsets
2805 > debug_info_p
->num_loc_views
)
2806 warn (_("More location offset attributes than DW_AT_GNU_locview attributes\n"));
2809 debug_info_p
->loc_offsets
[num
] = uvalue
;
2810 debug_info_p
->num_loc_offsets
++;
2815 assert (debug_info_p
->num_loc_views
<= num
);
2816 num
= debug_info_p
->num_loc_views
;
2817 if (num
> debug_info_p
->num_loc_offsets
)
2818 warn (_("More DW_AT_GNU_locview attributes than location offset attributes\n"));
2821 debug_info_p
->loc_views
[num
] = uvalue
;
2822 debug_info_p
->num_loc_views
++;
2829 if (need_base_address
)
2830 debug_info_p
->base_address
= uvalue
;
2833 case DW_AT_GNU_addr_base
:
2834 case DW_AT_addr_base
:
2835 debug_info_p
->addr_base
= uvalue
;
2838 case DW_AT_GNU_ranges_base
:
2839 debug_info_p
->ranges_base
= uvalue
;
2843 if ((dwarf_version
< 4
2844 && (form
== DW_FORM_data4
|| form
== DW_FORM_data8
))
2845 || form
== DW_FORM_sec_offset
)
2847 /* Process range list. */
2848 unsigned int lmax
= debug_info_p
->max_range_lists
;
2849 unsigned int num
= debug_info_p
->num_range_lists
;
2851 if (lmax
== 0 || num
>= lmax
)
2854 debug_info_p
->range_lists
= (dwarf_vma
*)
2855 xcrealloc (debug_info_p
->range_lists
,
2856 lmax
, sizeof (*debug_info_p
->range_lists
));
2857 debug_info_p
->max_range_lists
= lmax
;
2859 debug_info_p
->range_lists
[num
] = uvalue
;
2860 debug_info_p
->num_range_lists
++;
2864 case DW_AT_GNU_dwo_name
:
2865 case DW_AT_dwo_name
:
2870 add_dwo_name ((const char *) fetch_indirect_string (uvalue
), cu_offset
);
2872 case DW_FORM_GNU_strp_alt
:
2873 add_dwo_name ((const char *) fetch_alt_indirect_string (uvalue
), cu_offset
);
2875 case DW_FORM_GNU_str_index
:
2881 add_dwo_name (fetch_indexed_string (uvalue
, this_set
, offset_size
, false), cu_offset
);
2883 case DW_FORM_string
:
2884 add_dwo_name ((const char *) orig_data
, cu_offset
);
2887 warn (_("Unsupported form (%s) for attribute %s\n"),
2888 get_FORM_name (form
), get_AT_name (attribute
));
2893 case DW_AT_comp_dir
:
2894 /* FIXME: Also extract a build-id in a CU/TU. */
2899 add_dwo_dir ((const char *) fetch_indirect_string (uvalue
), cu_offset
);
2901 case DW_FORM_GNU_strp_alt
:
2902 add_dwo_dir (fetch_alt_indirect_string (uvalue
), cu_offset
);
2904 case DW_FORM_line_strp
:
2905 add_dwo_dir ((const char *) fetch_indirect_line_string (uvalue
), cu_offset
);
2907 case DW_FORM_GNU_str_index
:
2913 add_dwo_dir (fetch_indexed_string (uvalue
, this_set
, offset_size
, false), cu_offset
);
2915 case DW_FORM_string
:
2916 add_dwo_dir ((const char *) orig_data
, cu_offset
);
2919 warn (_("Unsupported form (%s) for attribute %s\n"),
2920 get_FORM_name (form
), get_AT_name (attribute
));
2925 case DW_AT_GNU_dwo_id
:
2930 /* FIXME: Record the length of the ID as well ? */
2931 add_dwo_id ((const char *) (data
- 8), cu_offset
);
2934 warn (_("Unsupported form (%s) for attribute %s\n"),
2935 get_FORM_name (form
), get_AT_name (attribute
));
2945 if (do_loc
|| attribute
== 0)
2948 /* For some attributes we can display further information. */
2952 if (level
>= 0 && level
< MAX_CU_NESTING
2953 && uvalue
< (size_t) (end
- start
))
2955 bool is_signed
= false;
2956 abbrev_entry
*type_abbrev
;
2957 unsigned char *type_data
;
2960 type_abbrev
= get_type_abbrev_from_form (form
, uvalue
,
2964 if (type_abbrev
!= NULL
)
2966 get_type_signedness (type_abbrev
, section
, type_data
,
2967 map
? section
->start
+ map
->end
: end
,
2968 map
? map
->start
: cu_offset
,
2969 pointer_size
, offset_size
, dwarf_version
,
2972 level_type_signed
[level
] = is_signed
;
2980 case DW_INL_not_inlined
:
2981 printf (_("(not inlined)"));
2983 case DW_INL_inlined
:
2984 printf (_("(inlined)"));
2986 case DW_INL_declared_not_inlined
:
2987 printf (_("(declared as inline but ignored)"));
2989 case DW_INL_declared_inlined
:
2990 printf (_("(declared as inline and inlined)"));
2993 printf (_(" (Unknown inline attribute value: %s)"),
2994 dwarf_vmatoa ("x", uvalue
));
2999 case DW_AT_language
:
3003 /* Ordered by the numeric value of these constants. */
3004 case DW_LANG_C89
: printf ("(ANSI C)"); break;
3005 case DW_LANG_C
: printf ("(non-ANSI C)"); break;
3006 case DW_LANG_Ada83
: printf ("(Ada)"); break;
3007 case DW_LANG_C_plus_plus
: printf ("(C++)"); break;
3008 case DW_LANG_Cobol74
: printf ("(Cobol 74)"); break;
3009 case DW_LANG_Cobol85
: printf ("(Cobol 85)"); break;
3010 case DW_LANG_Fortran77
: printf ("(FORTRAN 77)"); break;
3011 case DW_LANG_Fortran90
: printf ("(Fortran 90)"); break;
3012 case DW_LANG_Pascal83
: printf ("(ANSI Pascal)"); break;
3013 case DW_LANG_Modula2
: printf ("(Modula 2)"); break;
3014 /* DWARF 2.1 values. */
3015 case DW_LANG_Java
: printf ("(Java)"); break;
3016 case DW_LANG_C99
: printf ("(ANSI C99)"); break;
3017 case DW_LANG_Ada95
: printf ("(ADA 95)"); break;
3018 case DW_LANG_Fortran95
: printf ("(Fortran 95)"); break;
3019 /* DWARF 3 values. */
3020 case DW_LANG_PLI
: printf ("(PLI)"); break;
3021 case DW_LANG_ObjC
: printf ("(Objective C)"); break;
3022 case DW_LANG_ObjC_plus_plus
: printf ("(Objective C++)"); break;
3023 case DW_LANG_UPC
: printf ("(Unified Parallel C)"); break;
3024 case DW_LANG_D
: printf ("(D)"); break;
3025 /* DWARF 4 values. */
3026 case DW_LANG_Python
: printf ("(Python)"); break;
3027 /* DWARF 5 values. */
3028 case DW_LANG_OpenCL
: printf ("(OpenCL)"); break;
3029 case DW_LANG_Go
: printf ("(Go)"); break;
3030 case DW_LANG_Modula3
: printf ("(Modula 3)"); break;
3031 case DW_LANG_Haskell
: printf ("(Haskell)"); break;
3032 case DW_LANG_C_plus_plus_03
: printf ("(C++03)"); break;
3033 case DW_LANG_C_plus_plus_11
: printf ("(C++11)"); break;
3034 case DW_LANG_OCaml
: printf ("(OCaml)"); break;
3035 case DW_LANG_Rust
: printf ("(Rust)"); break;
3036 case DW_LANG_C11
: printf ("(C11)"); break;
3037 case DW_LANG_Swift
: printf ("(Swift)"); break;
3038 case DW_LANG_Julia
: printf ("(Julia)"); break;
3039 case DW_LANG_Dylan
: printf ("(Dylan)"); break;
3040 case DW_LANG_C_plus_plus_14
: printf ("(C++14)"); break;
3041 case DW_LANG_Fortran03
: printf ("(Fortran 03)"); break;
3042 case DW_LANG_Fortran08
: printf ("(Fortran 08)"); break;
3043 case DW_LANG_RenderScript
: printf ("(RenderScript)"); break;
3044 /* MIPS extension. */
3045 case DW_LANG_Mips_Assembler
: printf ("(MIPS assembler)"); break;
3046 /* UPC extension. */
3047 case DW_LANG_Upc
: printf ("(Unified Parallel C)"); break;
3049 if (uvalue
>= DW_LANG_lo_user
&& uvalue
<= DW_LANG_hi_user
)
3050 printf (_("(implementation defined: %s)"),
3051 dwarf_vmatoa ("x", uvalue
));
3053 printf (_("(Unknown: %s)"), dwarf_vmatoa ("x", uvalue
));
3058 case DW_AT_encoding
:
3062 case DW_ATE_void
: printf ("(void)"); break;
3063 case DW_ATE_address
: printf ("(machine address)"); break;
3064 case DW_ATE_boolean
: printf ("(boolean)"); break;
3065 case DW_ATE_complex_float
: printf ("(complex float)"); break;
3066 case DW_ATE_float
: printf ("(float)"); break;
3067 case DW_ATE_signed
: printf ("(signed)"); break;
3068 case DW_ATE_signed_char
: printf ("(signed char)"); break;
3069 case DW_ATE_unsigned
: printf ("(unsigned)"); break;
3070 case DW_ATE_unsigned_char
: printf ("(unsigned char)"); break;
3071 /* DWARF 2.1 values: */
3072 case DW_ATE_imaginary_float
: printf ("(imaginary float)"); break;
3073 case DW_ATE_decimal_float
: printf ("(decimal float)"); break;
3074 /* DWARF 3 values: */
3075 case DW_ATE_packed_decimal
: printf ("(packed_decimal)"); break;
3076 case DW_ATE_numeric_string
: printf ("(numeric_string)"); break;
3077 case DW_ATE_edited
: printf ("(edited)"); break;
3078 case DW_ATE_signed_fixed
: printf ("(signed_fixed)"); break;
3079 case DW_ATE_unsigned_fixed
: printf ("(unsigned_fixed)"); break;
3080 /* DWARF 4 values: */
3081 case DW_ATE_UTF
: printf ("(unicode string)"); break;
3082 /* DWARF 5 values: */
3083 case DW_ATE_UCS
: printf ("(UCS)"); break;
3084 case DW_ATE_ASCII
: printf ("(ASCII)"); break;
3086 /* HP extensions: */
3087 case DW_ATE_HP_float80
: printf ("(HP_float80)"); break;
3088 case DW_ATE_HP_complex_float80
: printf ("(HP_complex_float80)"); break;
3089 case DW_ATE_HP_float128
: printf ("(HP_float128)"); break;
3090 case DW_ATE_HP_complex_float128
:printf ("(HP_complex_float128)"); break;
3091 case DW_ATE_HP_floathpintel
: printf ("(HP_floathpintel)"); break;
3092 case DW_ATE_HP_imaginary_float80
: printf ("(HP_imaginary_float80)"); break;
3093 case DW_ATE_HP_imaginary_float128
: printf ("(HP_imaginary_float128)"); break;
3096 if (uvalue
>= DW_ATE_lo_user
3097 && uvalue
<= DW_ATE_hi_user
)
3098 printf (_("(user defined type)"));
3100 printf (_("(unknown type)"));
3105 case DW_AT_accessibility
:
3109 case DW_ACCESS_public
: printf ("(public)"); break;
3110 case DW_ACCESS_protected
: printf ("(protected)"); break;
3111 case DW_ACCESS_private
: printf ("(private)"); break;
3113 printf (_("(unknown accessibility)"));
3118 case DW_AT_visibility
:
3122 case DW_VIS_local
: printf ("(local)"); break;
3123 case DW_VIS_exported
: printf ("(exported)"); break;
3124 case DW_VIS_qualified
: printf ("(qualified)"); break;
3125 default: printf (_("(unknown visibility)")); break;
3129 case DW_AT_endianity
:
3133 case DW_END_default
: printf ("(default)"); break;
3134 case DW_END_big
: printf ("(big)"); break;
3135 case DW_END_little
: printf ("(little)"); break;
3137 if (uvalue
>= DW_END_lo_user
&& uvalue
<= DW_END_hi_user
)
3138 printf (_("(user specified)"));
3140 printf (_("(unknown endianity)"));
3145 case DW_AT_virtuality
:
3149 case DW_VIRTUALITY_none
: printf ("(none)"); break;
3150 case DW_VIRTUALITY_virtual
: printf ("(virtual)"); break;
3151 case DW_VIRTUALITY_pure_virtual
:printf ("(pure_virtual)"); break;
3152 default: printf (_("(unknown virtuality)")); break;
3156 case DW_AT_identifier_case
:
3160 case DW_ID_case_sensitive
: printf ("(case_sensitive)"); break;
3161 case DW_ID_up_case
: printf ("(up_case)"); break;
3162 case DW_ID_down_case
: printf ("(down_case)"); break;
3163 case DW_ID_case_insensitive
: printf ("(case_insensitive)"); break;
3164 default: printf (_("(unknown case)")); break;
3168 case DW_AT_calling_convention
:
3172 case DW_CC_normal
: printf ("(normal)"); break;
3173 case DW_CC_program
: printf ("(program)"); break;
3174 case DW_CC_nocall
: printf ("(nocall)"); break;
3175 case DW_CC_pass_by_reference
: printf ("(pass by ref)"); break;
3176 case DW_CC_pass_by_value
: printf ("(pass by value)"); break;
3177 case DW_CC_GNU_renesas_sh
: printf ("(Rensas SH)"); break;
3178 case DW_CC_GNU_borland_fastcall_i386
: printf ("(Borland fastcall i386)"); break;
3180 if (uvalue
>= DW_CC_lo_user
3181 && uvalue
<= DW_CC_hi_user
)
3182 printf (_("(user defined)"));
3184 printf (_("(unknown convention)"));
3188 case DW_AT_ordering
:
3193 case -1: printf (_("(undefined)")); break;
3194 case 0: printf ("(row major)"); break;
3195 case 1: printf ("(column major)"); break;
3199 case DW_AT_decimal_sign
:
3203 case DW_DS_unsigned
: printf (_("(unsigned)")); break;
3204 case DW_DS_leading_overpunch
: printf (_("(leading overpunch)")); break;
3205 case DW_DS_trailing_overpunch
: printf (_("(trailing overpunch)")); break;
3206 case DW_DS_leading_separate
: printf (_("(leading separate)")); break;
3207 case DW_DS_trailing_separate
: printf (_("(trailing separate)")); break;
3208 default: printf (_("(unrecognised)")); break;
3212 case DW_AT_defaulted
:
3216 case DW_DEFAULTED_no
: printf (_("(no)")); break;
3217 case DW_DEFAULTED_in_class
: printf (_("(in class)")); break;
3218 case DW_DEFAULTED_out_of_class
: printf (_("(out of class)")); break;
3219 default: printf (_("(unrecognised)")); break;
3223 case DW_AT_discr_list
:
3225 display_discr_list (form
, uvalue
, data
, level
);
3228 case DW_AT_frame_base
:
3229 have_frame_base
= 1;
3231 case DW_AT_location
:
3232 case DW_AT_string_length
:
3233 case DW_AT_return_addr
:
3234 case DW_AT_data_member_location
:
3235 case DW_AT_vtable_elem_location
:
3237 case DW_AT_static_link
:
3238 case DW_AT_use_location
:
3239 case DW_AT_call_value
:
3240 case DW_AT_GNU_call_site_value
:
3241 case DW_AT_call_data_value
:
3242 case DW_AT_GNU_call_site_data_value
:
3243 case DW_AT_call_target
:
3244 case DW_AT_GNU_call_site_target
:
3245 case DW_AT_call_target_clobbered
:
3246 case DW_AT_GNU_call_site_target_clobbered
:
3247 if ((dwarf_version
< 4
3248 && (form
== DW_FORM_data4
|| form
== DW_FORM_data8
))
3249 || form
== DW_FORM_sec_offset
)
3250 printf (_(" (location list)"));
3252 case DW_AT_allocated
:
3253 case DW_AT_associated
:
3254 case DW_AT_data_location
:
3256 case DW_AT_upper_bound
:
3257 case DW_AT_lower_bound
:
3260 int need_frame_base
;
3263 need_frame_base
= decode_location_expression (block_start
,
3268 cu_offset
, section
);
3270 if (need_frame_base
&& !have_frame_base
)
3271 printf (_(" [without DW_AT_frame_base]"));
3275 case DW_AT_data_bit_offset
:
3276 case DW_AT_byte_size
:
3277 case DW_AT_bit_size
:
3278 case DW_AT_string_length_byte_size
:
3279 case DW_AT_string_length_bit_size
:
3280 case DW_AT_bit_stride
:
3281 if (form
== DW_FORM_exprloc
)
3284 (void) decode_location_expression (block_start
, pointer_size
,
3285 offset_size
, dwarf_version
,
3286 uvalue
, cu_offset
, section
);
3293 unsigned long abbrev_number
;
3294 abbrev_entry
*entry
;
3296 entry
= get_type_abbrev_from_form (form
, uvalue
, cu_offset
, end
,
3297 section
, & abbrev_number
, NULL
, NULL
);
3300 if (form
!= DW_FORM_GNU_ref_alt
)
3301 warn (_("Offset %s used as value for DW_AT_import attribute of DIE at offset 0x%lx is too big.\n"),
3302 dwarf_vmatoa ("x", uvalue
),
3303 (unsigned long) (orig_data
- section
->start
));
3307 printf (_("\t[Abbrev Number: %ld"), abbrev_number
);
3308 printf (" (%s)", get_TAG_name (entry
->tag
));
3321 static unsigned char *
3322 read_and_display_attr (unsigned long attribute
,
3324 dwarf_signed_vma implicit_const
,
3325 unsigned char * start
,
3326 unsigned char * data
,
3327 unsigned char * end
,
3328 dwarf_vma cu_offset
,
3329 dwarf_vma pointer_size
,
3330 dwarf_vma offset_size
,
3332 debug_info
* debug_info_p
,
3334 struct dwarf_section
* section
,
3335 struct cu_tu_set
* this_set
,
3339 printf (" %-18s:", get_AT_name (attribute
));
3340 data
= read_and_display_attr_value (attribute
, form
, implicit_const
,
3342 cu_offset
, pointer_size
, offset_size
,
3343 dwarf_version
, debug_info_p
,
3344 do_loc
, section
, this_set
, ' ', level
);
3350 /* Like load_debug_section, but if the ordinary call fails, and we are
3351 following debug links, then attempt to load the requested section
3352 from one of the separate debug info files. */
3355 load_debug_section_with_follow (enum dwarf_section_display_enum sec_enum
,
3358 if (load_debug_section (sec_enum
, handle
))
3360 if (debug_displays
[sec_enum
].section
.filename
== NULL
)
3362 /* See if we can associate a filename with this section. */
3365 for (i
= first_separate_info
; i
!= NULL
; i
= i
->next
)
3366 if (i
->handle
== handle
)
3368 debug_displays
[sec_enum
].section
.filename
= i
->filename
;
3376 if (do_follow_links
)
3380 for (i
= first_separate_info
; i
!= NULL
; i
= i
->next
)
3382 if (load_debug_section (sec_enum
, i
->handle
))
3384 debug_displays
[sec_enum
].section
.filename
= i
->filename
;
3386 /* FIXME: We should check to see if any of the remaining debug info
3387 files also contain this section, and, umm, do something about it. */
3397 introduce (struct dwarf_section
* section
, bool raw
)
3401 if (do_follow_links
&& section
->filename
)
3402 printf (_("Raw dump of debug contents of section %s (loaded from %s):\n\n"),
3403 section
->name
, section
->filename
);
3405 printf (_("Raw dump of debug contents of section %s:\n\n"), section
->name
);
3409 if (do_follow_links
&& section
->filename
)
3410 printf (_("Contents of the %s section (loaded from %s):\n\n"),
3411 section
->name
, section
->filename
);
3413 printf (_("Contents of the %s section:\n\n"), section
->name
);
3417 /* Process the contents of a .debug_info section.
3418 If do_loc is TRUE then we are scanning for location lists and dwo tags
3419 and we do not want to display anything to the user.
3420 If do_types is TRUE, we are processing a .debug_types section instead of
3421 a .debug_info section.
3422 The information displayed is restricted by the values in DWARF_START_DIE
3423 and DWARF_CUTOFF_LEVEL.
3424 Returns TRUE upon success. Otherwise an error or warning message is
3425 printed and FALSE is returned. */
3428 process_debug_info (struct dwarf_section
* section
,
3430 enum dwarf_section_display_enum abbrev_sec
,
3434 unsigned char *start
= section
->start
;
3435 unsigned char *end
= start
+ section
->size
;
3436 unsigned char *section_begin
;
3438 unsigned int num_units
= 0;
3440 /* First scan the section to get the number of comp units.
3441 Length sanity checks are done here. */
3442 for (section_begin
= start
, num_units
= 0; section_begin
< end
;
3447 /* Read the first 4 bytes. For a 32-bit DWARF section, this
3448 will be the length. For a 64-bit DWARF section, it'll be
3449 the escape code 0xffffffff followed by an 8 byte length. */
3450 SAFE_BYTE_GET_AND_INC (length
, section_begin
, 4, end
);
3452 if (length
== 0xffffffff)
3453 SAFE_BYTE_GET_AND_INC (length
, section_begin
, 8, end
);
3454 else if (length
>= 0xfffffff0 && length
< 0xffffffff)
3456 warn (_("Reserved length value (0x%s) found in section %s\n"),
3457 dwarf_vmatoa ("x", length
), section
->name
);
3461 /* Negative values are illegal, they may even cause infinite
3462 looping. This can happen if we can't accurately apply
3463 relocations to an object file, or if the file is corrupt. */
3464 if (length
> (size_t) (end
- section_begin
))
3466 warn (_("Corrupt unit length (got 0x%s expected at most 0x%s) in section %s\n"),
3467 dwarf_vmatoa ("x", length
),
3468 dwarf_vmatoa ("x", end
- section_begin
),
3472 section_begin
+= length
;
3477 error (_("No comp units in %s section ?\n"), section
->name
);
3481 if ((do_loc
|| do_debug_loc
|| do_debug_ranges
)
3482 && num_debug_info_entries
== 0
3486 /* Then allocate an array to hold the information. */
3487 debug_information
= (debug_info
*) cmalloc (num_units
,
3488 sizeof (* debug_information
));
3489 if (debug_information
== NULL
)
3491 error (_("Not enough memory for a debug info array of %u entries\n"),
3493 alloc_num_debug_info_entries
= num_debug_info_entries
= 0;
3497 /* PR 17531: file: 92ca3797.
3498 We cannot rely upon the debug_information array being initialised
3499 before it is used. A corrupt file could easily contain references
3500 to a unit for which information has not been made available. So
3501 we ensure that the array is zeroed here. */
3502 memset (debug_information
, 0, num_units
* sizeof (*debug_information
));
3504 alloc_num_debug_info_entries
= num_units
;
3509 load_debug_section_with_follow (str
, file
);
3510 load_debug_section_with_follow (line_str
, file
);
3511 load_debug_section_with_follow (str_dwo
, file
);
3512 load_debug_section_with_follow (str_index
, file
);
3513 load_debug_section_with_follow (str_index_dwo
, file
);
3514 load_debug_section_with_follow (debug_addr
, file
);
3517 load_debug_section_with_follow (abbrev_sec
, file
);
3518 if (debug_displays
[abbrev_sec
].section
.start
== NULL
)
3520 warn (_("Unable to locate %s section!\n"),
3521 debug_displays
[abbrev_sec
].section
.uncompressed_name
);
3525 if (!do_loc
&& dwarf_start_die
== 0)
3526 introduce (section
, false);
3528 free_all_abbrevs ();
3529 free (cu_abbrev_map
);
3530 cu_abbrev_map
= NULL
;
3531 next_free_abbrev_map_entry
= 0;
3533 /* In order to be able to resolve DW_FORM_ref_attr forms we need
3534 to load *all* of the abbrevs for all CUs in this .debug_info
3535 section. This does effectively mean that we (partially) read
3536 every CU header twice. */
3537 for (section_begin
= start
; start
< end
;)
3539 DWARF2_Internal_CompUnit compunit
;
3540 unsigned char * hdrptr
;
3541 dwarf_vma abbrev_base
;
3543 dwarf_vma cu_offset
;
3544 unsigned int offset_size
;
3545 struct cu_tu_set
* this_set
;
3547 unsigned char *end_cu
;
3550 cu_offset
= start
- section_begin
;
3552 SAFE_BYTE_GET_AND_INC (compunit
.cu_length
, hdrptr
, 4, end
);
3554 if (compunit
.cu_length
== 0xffffffff)
3556 SAFE_BYTE_GET_AND_INC (compunit
.cu_length
, hdrptr
, 8, end
);
3561 end_cu
= hdrptr
+ compunit
.cu_length
;
3563 SAFE_BYTE_GET_AND_INC (compunit
.cu_version
, hdrptr
, 2, end_cu
);
3565 this_set
= find_cu_tu_set_v2 (cu_offset
, do_types
);
3567 if (compunit
.cu_version
< 5)
3569 compunit
.cu_unit_type
= DW_UT_compile
;
3570 /* Initialize it due to a false compiler warning. */
3571 compunit
.cu_pointer_size
= -1;
3575 SAFE_BYTE_GET_AND_INC (compunit
.cu_unit_type
, hdrptr
, 1, end_cu
);
3576 do_types
= (compunit
.cu_unit_type
== DW_UT_type
);
3578 SAFE_BYTE_GET_AND_INC (compunit
.cu_pointer_size
, hdrptr
, 1, end_cu
);
3581 SAFE_BYTE_GET_AND_INC (compunit
.cu_abbrev_offset
, hdrptr
, offset_size
,
3584 if (compunit
.cu_unit_type
== DW_UT_split_compile
3585 || compunit
.cu_unit_type
== DW_UT_skeleton
)
3588 SAFE_BYTE_GET_AND_INC (dwo_id
, hdrptr
, 8, end_cu
);
3591 if (this_set
== NULL
)
3594 abbrev_size
= debug_displays
[abbrev_sec
].section
.size
;
3598 abbrev_base
= this_set
->section_offsets
[DW_SECT_ABBREV
];
3599 abbrev_size
= this_set
->section_sizes
[DW_SECT_ABBREV
];
3602 list
= find_abbrev_list_by_abbrev_offset (abbrev_base
,
3603 compunit
.cu_abbrev_offset
);
3606 unsigned char * next
;
3608 list
= new_abbrev_list (abbrev_base
,
3609 compunit
.cu_abbrev_offset
);
3610 next
= process_abbrev_set (&debug_displays
[abbrev_sec
].section
,
3611 abbrev_base
, abbrev_size
,
3612 compunit
.cu_abbrev_offset
, list
);
3613 list
->start_of_next_abbrevs
= next
;
3617 record_abbrev_list_for_cu (cu_offset
, start
- section_begin
, list
);
3620 for (start
= section_begin
, unit
= 0; start
< end
; unit
++)
3622 DWARF2_Internal_CompUnit compunit
;
3623 unsigned char *hdrptr
;
3624 unsigned char *tags
;
3625 int level
, last_level
, saved_level
;
3626 dwarf_vma cu_offset
;
3627 unsigned int offset_size
;
3628 dwarf_vma signature
= 0;
3629 dwarf_vma type_offset
= 0;
3630 struct cu_tu_set
*this_set
;
3631 dwarf_vma abbrev_base
;
3633 abbrev_list
* list
= NULL
;
3634 unsigned char *end_cu
;
3637 cu_offset
= start
- section_begin
;
3639 SAFE_BYTE_GET_AND_INC (compunit
.cu_length
, hdrptr
, 4, end
);
3641 if (compunit
.cu_length
== 0xffffffff)
3643 SAFE_BYTE_GET_AND_INC (compunit
.cu_length
, hdrptr
, 8, end
);
3648 end_cu
= hdrptr
+ compunit
.cu_length
;
3650 SAFE_BYTE_GET_AND_INC (compunit
.cu_version
, hdrptr
, 2, end_cu
);
3652 this_set
= find_cu_tu_set_v2 (cu_offset
, do_types
);
3654 if (compunit
.cu_version
< 5)
3656 compunit
.cu_unit_type
= DW_UT_compile
;
3657 /* Initialize it due to a false compiler warning. */
3658 compunit
.cu_pointer_size
= -1;
3662 SAFE_BYTE_GET_AND_INC (compunit
.cu_unit_type
, hdrptr
, 1, end_cu
);
3663 do_types
= (compunit
.cu_unit_type
== DW_UT_type
);
3665 SAFE_BYTE_GET_AND_INC (compunit
.cu_pointer_size
, hdrptr
, 1, end_cu
);
3668 SAFE_BYTE_GET_AND_INC (compunit
.cu_abbrev_offset
, hdrptr
, offset_size
, end_cu
);
3670 if (this_set
== NULL
)
3673 abbrev_size
= debug_displays
[abbrev_sec
].section
.size
;
3677 abbrev_base
= this_set
->section_offsets
[DW_SECT_ABBREV
];
3678 abbrev_size
= this_set
->section_sizes
[DW_SECT_ABBREV
];
3681 if (compunit
.cu_version
< 5)
3682 SAFE_BYTE_GET_AND_INC (compunit
.cu_pointer_size
, hdrptr
, 1, end_cu
);
3684 bool do_dwo_id
= false;
3685 uint64_t dwo_id
= 0;
3686 if (compunit
.cu_unit_type
== DW_UT_split_compile
3687 || compunit
.cu_unit_type
== DW_UT_skeleton
)
3689 SAFE_BYTE_GET_AND_INC (dwo_id
, hdrptr
, 8, end_cu
);
3693 /* PR 17512: file: 001-108546-0.001:0.1. */
3694 if (compunit
.cu_pointer_size
< 2 || compunit
.cu_pointer_size
> 8)
3696 warn (_("Invalid pointer size (%d) in compunit header, using %d instead\n"),
3697 compunit
.cu_pointer_size
, offset_size
);
3698 compunit
.cu_pointer_size
= offset_size
;
3703 SAFE_BYTE_GET_AND_INC (signature
, hdrptr
, 8, end_cu
);
3704 SAFE_BYTE_GET_AND_INC (type_offset
, hdrptr
, offset_size
, end_cu
);
3707 if (dwarf_start_die
>= (size_t) (end_cu
- section_begin
))
3713 if ((do_loc
|| do_debug_loc
|| do_debug_ranges
)
3714 && num_debug_info_entries
== 0
3715 && alloc_num_debug_info_entries
> unit
3718 debug_information
[unit
].cu_offset
= cu_offset
;
3719 debug_information
[unit
].pointer_size
3720 = compunit
.cu_pointer_size
;
3721 debug_information
[unit
].offset_size
= offset_size
;
3722 debug_information
[unit
].dwarf_version
= compunit
.cu_version
;
3723 debug_information
[unit
].base_address
= 0;
3724 debug_information
[unit
].addr_base
= DEBUG_INFO_UNAVAILABLE
;
3725 debug_information
[unit
].ranges_base
= DEBUG_INFO_UNAVAILABLE
;
3726 debug_information
[unit
].loc_offsets
= NULL
;
3727 debug_information
[unit
].have_frame_base
= NULL
;
3728 debug_information
[unit
].max_loc_offsets
= 0;
3729 debug_information
[unit
].num_loc_offsets
= 0;
3730 debug_information
[unit
].range_lists
= NULL
;
3731 debug_information
[unit
].max_range_lists
= 0;
3732 debug_information
[unit
].num_range_lists
= 0;
3735 if (!do_loc
&& dwarf_start_die
== 0)
3737 printf (_(" Compilation Unit @ offset 0x%s:\n"),
3738 dwarf_vmatoa ("x", cu_offset
));
3739 printf (_(" Length: 0x%s (%s)\n"),
3740 dwarf_vmatoa ("x", compunit
.cu_length
),
3741 offset_size
== 8 ? "64-bit" : "32-bit");
3742 printf (_(" Version: %d\n"), compunit
.cu_version
);
3743 if (compunit
.cu_version
>= 5)
3745 const char *name
= get_DW_UT_name (compunit
.cu_unit_type
);
3747 printf (_(" Unit Type: %s (%x)\n"),
3748 name
? name
: "???",
3749 compunit
.cu_unit_type
);
3751 printf (_(" Abbrev Offset: 0x%s\n"),
3752 dwarf_vmatoa ("x", compunit
.cu_abbrev_offset
));
3753 printf (_(" Pointer Size: %d\n"), compunit
.cu_pointer_size
);
3756 printf (_(" Signature: 0x%s\n"),
3757 dwarf_vmatoa ("x", signature
));
3758 printf (_(" Type Offset: 0x%s\n"),
3759 dwarf_vmatoa ("x", type_offset
));
3762 printf (_(" DWO ID: 0x%s\n"), dwarf_vmatoa ("x", dwo_id
));
3763 if (this_set
!= NULL
)
3765 dwarf_vma
*offsets
= this_set
->section_offsets
;
3766 size_t *sizes
= this_set
->section_sizes
;
3768 printf (_(" Section contributions:\n"));
3769 printf (_(" .debug_abbrev.dwo: 0x%s 0x%s\n"),
3770 dwarf_vmatoa ("x", offsets
[DW_SECT_ABBREV
]),
3771 dwarf_vmatoa ("x", sizes
[DW_SECT_ABBREV
]));
3772 printf (_(" .debug_line.dwo: 0x%s 0x%s\n"),
3773 dwarf_vmatoa ("x", offsets
[DW_SECT_LINE
]),
3774 dwarf_vmatoa ("x", sizes
[DW_SECT_LINE
]));
3775 printf (_(" .debug_loc.dwo: 0x%s 0x%s\n"),
3776 dwarf_vmatoa ("x", offsets
[DW_SECT_LOC
]),
3777 dwarf_vmatoa ("x", sizes
[DW_SECT_LOC
]));
3778 printf (_(" .debug_str_offsets.dwo: 0x%s 0x%s\n"),
3779 dwarf_vmatoa ("x", offsets
[DW_SECT_STR_OFFSETS
]),
3780 dwarf_vmatoa ("x", sizes
[DW_SECT_STR_OFFSETS
]));
3787 if (compunit
.cu_version
< 2 || compunit
.cu_version
> 5)
3789 warn (_("CU at offset %s contains corrupt or "
3790 "unsupported version number: %d.\n"),
3791 dwarf_vmatoa ("x", cu_offset
), compunit
.cu_version
);
3795 if (compunit
.cu_unit_type
!= DW_UT_compile
3796 && compunit
.cu_unit_type
!= DW_UT_partial
3797 && compunit
.cu_unit_type
!= DW_UT_type
3798 && compunit
.cu_unit_type
!= DW_UT_split_compile
3799 && compunit
.cu_unit_type
!= DW_UT_skeleton
)
3801 warn (_("CU at offset %s contains corrupt or "
3802 "unsupported unit type: %d.\n"),
3803 dwarf_vmatoa ("x", cu_offset
), compunit
.cu_unit_type
);
3807 /* Process the abbrevs used by this compilation unit. */
3808 list
= find_abbrev_list_by_abbrev_offset (abbrev_base
,
3809 compunit
.cu_abbrev_offset
);
3812 unsigned char *next
;
3814 list
= new_abbrev_list (abbrev_base
,
3815 compunit
.cu_abbrev_offset
);
3816 next
= process_abbrev_set (&debug_displays
[abbrev_sec
].section
,
3817 abbrev_base
, abbrev_size
,
3818 compunit
.cu_abbrev_offset
, list
);
3819 list
->start_of_next_abbrevs
= next
;
3825 while (tags
< start
)
3827 unsigned long abbrev_number
;
3828 unsigned long die_offset
;
3829 abbrev_entry
*entry
;
3831 int do_printing
= 1;
3833 die_offset
= tags
- section_begin
;
3835 READ_ULEB (abbrev_number
, tags
, start
);
3837 /* A null DIE marks the end of a list of siblings or it may also be
3838 a section padding. */
3839 if (abbrev_number
== 0)
3841 /* Check if it can be a section padding for the last CU. */
3842 if (level
== 0 && start
== end
)
3846 for (chk
= tags
; chk
< start
; chk
++)
3853 if (!do_loc
&& die_offset
>= dwarf_start_die
3854 && (dwarf_cutoff_level
== -1
3855 || level
< dwarf_cutoff_level
))
3856 printf (_(" <%d><%lx>: Abbrev Number: 0\n"),
3862 static unsigned num_bogus_warns
= 0;
3864 if (num_bogus_warns
< 3)
3866 warn (_("Bogus end-of-siblings marker detected at offset %lx in %s section\n"),
3867 die_offset
, section
->name
);
3869 if (num_bogus_warns
== 3)
3870 warn (_("Further warnings about bogus end-of-sibling markers suppressed\n"));
3873 if (dwarf_start_die
!= 0 && level
< saved_level
)
3880 if (dwarf_start_die
!= 0 && die_offset
< dwarf_start_die
)
3884 if (dwarf_start_die
!= 0 && die_offset
== dwarf_start_die
)
3885 saved_level
= level
;
3886 do_printing
= (dwarf_cutoff_level
== -1
3887 || level
< dwarf_cutoff_level
);
3889 printf (_(" <%d><%lx>: Abbrev Number: %lu"),
3890 level
, die_offset
, abbrev_number
);
3891 else if (dwarf_cutoff_level
== -1
3892 || last_level
< dwarf_cutoff_level
)
3893 printf (_(" <%d><%lx>: ...\n"), level
, die_offset
);
3898 /* Scan through the abbreviation list until we reach the
3903 for (entry
= list
->first_abbrev
; entry
!= NULL
; entry
= entry
->next
)
3904 if (entry
->number
== abbrev_number
)
3909 if (!do_loc
&& do_printing
)
3914 warn (_("DIE at offset 0x%lx refers to abbreviation number %lu which does not exist\n"),
3915 die_offset
, abbrev_number
);
3919 if (!do_loc
&& do_printing
)
3920 printf (" (%s)\n", get_TAG_name (entry
->tag
));
3925 need_base_address
= 0;
3927 case DW_TAG_compile_unit
:
3928 need_base_address
= 1;
3929 need_dwo_info
= do_loc
;
3931 case DW_TAG_entry_point
:
3932 case DW_TAG_subprogram
:
3933 need_base_address
= 0;
3934 /* Assuming that there is no DW_AT_frame_base. */
3935 have_frame_base
= 0;
3939 debug_info
*debug_info_p
=
3940 (debug_information
&& unit
< alloc_num_debug_info_entries
)
3941 ? debug_information
+ unit
: NULL
;
3943 assert (!debug_info_p
3944 || (debug_info_p
->num_loc_offsets
3945 == debug_info_p
->num_loc_views
));
3947 for (attr
= entry
->first_attr
;
3948 attr
&& attr
->attribute
;
3951 if (! do_loc
&& do_printing
)
3952 /* Show the offset from where the tag was extracted. */
3953 printf (" <%lx>", (unsigned long)(tags
- section_begin
));
3954 tags
= read_and_display_attr (attr
->attribute
,
3956 attr
->implicit_const
,
3961 compunit
.cu_pointer_size
,
3963 compunit
.cu_version
,
3965 do_loc
|| ! do_printing
,
3971 /* If a locview attribute appears before a location one,
3972 make sure we don't associate it with an earlier
3975 switch (debug_info_p
->num_loc_offsets
- debug_info_p
->num_loc_views
)
3978 debug_info_p
->loc_views
[debug_info_p
->num_loc_views
] = vm1
;
3979 debug_info_p
->num_loc_views
++;
3980 assert (debug_info_p
->num_loc_views
3981 == debug_info_p
->num_loc_offsets
);
3988 warn(_("DIE has locviews without loclist\n"));
3989 debug_info_p
->num_loc_views
--;
3996 if (entry
->children
)
4001 /* Set num_debug_info_entries here so that it can be used to check if
4002 we need to process .debug_loc and .debug_ranges sections. */
4003 if ((do_loc
|| do_debug_loc
|| do_debug_ranges
)
4004 && num_debug_info_entries
== 0
4007 if (num_units
> alloc_num_debug_info_entries
)
4008 num_debug_info_entries
= alloc_num_debug_info_entries
;
4010 num_debug_info_entries
= num_units
;
4019 /* Locate and scan the .debug_info section in the file and record the pointer
4020 sizes and offsets for the compilation units in it. Usually an executable
4021 will have just one pointer size, but this is not guaranteed, and so we try
4022 not to make any assumptions. Returns zero upon failure, or the number of
4023 compilation units upon success. */
4026 load_debug_info (void * file
)
4028 /* If we have already tried and failed to load the .debug_info
4029 section then do not bother to repeat the task. */
4030 if (num_debug_info_entries
== DEBUG_INFO_UNAVAILABLE
)
4033 /* If we already have the information there is nothing else to do. */
4034 if (num_debug_info_entries
> 0)
4035 return num_debug_info_entries
;
4037 /* If this is a DWARF package file, load the CU and TU indexes. */
4038 (void) load_cu_tu_indexes (file
);
4040 if (load_debug_section_with_follow (info
, file
)
4041 && process_debug_info (&debug_displays
[info
].section
, file
, abbrev
, true, false))
4042 return num_debug_info_entries
;
4044 if (load_debug_section_with_follow (info_dwo
, file
)
4045 && process_debug_info (&debug_displays
[info_dwo
].section
, file
,
4046 abbrev_dwo
, true, false))
4047 return num_debug_info_entries
;
4049 num_debug_info_entries
= DEBUG_INFO_UNAVAILABLE
;
4053 /* Read a DWARF .debug_line section header starting at DATA.
4054 Upon success returns an updated DATA pointer and the LINFO
4055 structure and the END_OF_SEQUENCE pointer will be filled in.
4056 Otherwise returns NULL. */
4058 static unsigned char *
4059 read_debug_line_header (struct dwarf_section
* section
,
4060 unsigned char * data
,
4061 unsigned char * end
,
4062 DWARF2_Internal_LineInfo
* linfo
,
4063 unsigned char ** end_of_sequence
)
4065 unsigned char *hdrptr
;
4067 /* Extract information from the Line Number Program Header.
4068 (section 6.2.4 in the Dwarf3 doc). */
4071 /* Get and check the length of the block. */
4072 SAFE_BYTE_GET_AND_INC (linfo
->li_length
, hdrptr
, 4, end
);
4074 if (linfo
->li_length
== 0xffffffff)
4076 /* This section is 64-bit DWARF 3. */
4077 SAFE_BYTE_GET_AND_INC (linfo
->li_length
, hdrptr
, 8, end
);
4078 linfo
->li_offset_size
= 8;
4081 linfo
->li_offset_size
= 4;
4083 if (linfo
->li_length
> (size_t) (end
- hdrptr
))
4085 /* If the length field has a relocation against it, then we should
4086 not complain if it is inaccurate (and probably negative). This
4087 happens in object files when the .debug_line section is actually
4088 comprised of several different .debug_line.* sections, (some of
4089 which may be removed by linker garbage collection), and a relocation
4090 is used to compute the correct length once that is done. */
4091 if (reloc_at (section
, (hdrptr
- section
->start
) - linfo
->li_offset_size
))
4093 linfo
->li_length
= end
- hdrptr
;
4097 warn (_("The length field (0x%lx) in the debug_line header is wrong - the section is too small\n"),
4098 (long) linfo
->li_length
);
4102 end
= hdrptr
+ linfo
->li_length
;
4104 /* Get and check the version number. */
4105 SAFE_BYTE_GET_AND_INC (linfo
->li_version
, hdrptr
, 2, end
);
4107 if (linfo
->li_version
!= 2
4108 && linfo
->li_version
!= 3
4109 && linfo
->li_version
!= 4
4110 && linfo
->li_version
!= 5)
4112 warn (_("Only DWARF version 2, 3, 4 and 5 line info "
4113 "is currently supported.\n"));
4117 if (linfo
->li_version
>= 5)
4119 SAFE_BYTE_GET_AND_INC (linfo
->li_address_size
, hdrptr
, 1, end
);
4121 SAFE_BYTE_GET_AND_INC (linfo
->li_segment_size
, hdrptr
, 1, end
);
4122 if (linfo
->li_segment_size
!= 0)
4124 warn (_("The %s section contains "
4125 "unsupported segment selector size: %d.\n"),
4126 section
->name
, linfo
->li_segment_size
);
4131 SAFE_BYTE_GET_AND_INC (linfo
->li_prologue_length
, hdrptr
,
4132 linfo
->li_offset_size
, end
);
4133 SAFE_BYTE_GET_AND_INC (linfo
->li_min_insn_length
, hdrptr
, 1, end
);
4135 if (linfo
->li_version
>= 4)
4137 SAFE_BYTE_GET_AND_INC (linfo
->li_max_ops_per_insn
, hdrptr
, 1, end
);
4139 if (linfo
->li_max_ops_per_insn
== 0)
4141 warn (_("Invalid maximum operations per insn.\n"));
4146 linfo
->li_max_ops_per_insn
= 1;
4148 SAFE_BYTE_GET_AND_INC (linfo
->li_default_is_stmt
, hdrptr
, 1, end
);
4149 SAFE_SIGNED_BYTE_GET_AND_INC (linfo
->li_line_base
, hdrptr
, 1, end
);
4150 SAFE_BYTE_GET_AND_INC (linfo
->li_line_range
, hdrptr
, 1, end
);
4151 SAFE_BYTE_GET_AND_INC (linfo
->li_opcode_base
, hdrptr
, 1, end
);
4153 *end_of_sequence
= end
;
4157 static unsigned char *
4158 display_formatted_table (unsigned char *data
,
4159 unsigned char *start
,
4161 const DWARF2_Internal_LineInfo
*linfo
,
4162 struct dwarf_section
*section
,
4165 unsigned char *format_start
, format_count
, *format
, formati
;
4166 dwarf_vma data_count
, datai
;
4167 unsigned int namepass
, last_entry
= 0;
4168 const char * table_name
= is_dir
? N_("Directory Table") : N_("File Name Table");
4170 SAFE_BYTE_GET_AND_INC (format_count
, data
, 1, end
);
4171 if (do_checks
&& format_count
> 5)
4172 warn (_("Unexpectedly large number of columns in the %s (%u)\n"),
4173 table_name
, format_count
);
4175 format_start
= data
;
4176 for (formati
= 0; formati
< format_count
; formati
++)
4178 SKIP_ULEB (data
, end
);
4179 SKIP_ULEB (data
, end
);
4182 warn (_("%s: Corrupt format description entry\n"), table_name
);
4187 READ_ULEB (data_count
, data
, end
);
4188 if (data_count
== 0)
4190 printf (_("\n The %s is empty.\n"), table_name
);
4193 else if (data
>= end
)
4195 warn (_("%s: Corrupt entry count - expected %s but none found\n"),
4196 table_name
, dwarf_vmatoa ("x", data_count
));
4200 else if (format_count
== 0)
4202 warn (_("%s: format count is zero, but the table is not empty\n"),
4207 printf (_("\n The %s (offset 0x%lx, lines %s, columns %u):\n"),
4208 table_name
, (long) (data
- start
), dwarf_vmatoa ("u", data_count
),
4211 printf (_(" Entry"));
4212 /* Delay displaying name as the last entry for better screen layout. */
4213 for (namepass
= 0; namepass
< 2; namepass
++)
4215 format
= format_start
;
4216 for (formati
= 0; formati
< format_count
; formati
++)
4218 dwarf_vma content_type
;
4220 READ_ULEB (content_type
, format
, end
);
4221 if ((content_type
== DW_LNCT_path
) == (namepass
== 1))
4222 switch (content_type
)
4225 printf (_("\tName"));
4227 case DW_LNCT_directory_index
:
4228 printf (_("\tDir"));
4230 case DW_LNCT_timestamp
:
4231 printf (_("\tTime"));
4234 printf (_("\tSize"));
4237 printf (_("\tMD5\t\t\t"));
4240 printf (_("\t(Unknown format content type %s)"),
4241 dwarf_vmatoa ("u", content_type
));
4243 SKIP_ULEB (format
, end
);
4248 for (datai
= 0; datai
< data_count
; datai
++)
4250 unsigned char *datapass
= data
;
4252 printf (" %d", last_entry
++);
4253 /* Delay displaying name as the last entry for better screen layout. */
4254 for (namepass
= 0; namepass
< 2; namepass
++)
4256 format
= format_start
;
4258 for (formati
= 0; formati
< format_count
; formati
++)
4260 dwarf_vma content_type
, form
;
4262 READ_ULEB (content_type
, format
, end
);
4263 READ_ULEB (form
, format
, end
);
4264 data
= read_and_display_attr_value (0, form
, 0, start
, data
, end
,
4265 0, 0, linfo
->li_offset_size
,
4266 linfo
->li_version
, NULL
,
4267 ((content_type
== DW_LNCT_path
) != (namepass
== 1)),
4268 section
, NULL
, '\t', -1);
4272 if (data
>= end
&& (datai
< data_count
- 1))
4274 warn (_("\n%s: Corrupt entries list\n"), table_name
);
4283 display_debug_sup (struct dwarf_section
* section
,
4284 void * file ATTRIBUTE_UNUSED
)
4286 unsigned char * start
= section
->start
;
4287 unsigned char * end
= section
->start
+ section
->size
;
4288 unsigned int version
;
4289 char is_supplementary
;
4290 const unsigned char * sup_filename
;
4291 size_t sup_filename_len
;
4292 unsigned int num_read
;
4294 dwarf_vma checksum_len
;
4297 introduce (section
, true);
4298 if (section
->size
< 4)
4300 error (_("corrupt .debug_sup section: size is too small\n"));
4304 /* Read the data. */
4305 SAFE_BYTE_GET_AND_INC (version
, start
, 2, end
);
4307 warn (_("corrupt .debug_sup section: version < 5"));
4309 SAFE_BYTE_GET_AND_INC (is_supplementary
, start
, 1, end
);
4310 if (is_supplementary
!= 0 && is_supplementary
!= 1)
4311 warn (_("corrupt .debug_sup section: is_supplementary not 0 or 1\n"));
4313 sup_filename
= start
;
4314 if (is_supplementary
&& sup_filename
[0] != 0)
4315 warn (_("corrupt .debug_sup section: filename not empty in supplementary section\n"));
4317 sup_filename_len
= strnlen ((const char *) start
, end
- start
);
4318 if (sup_filename_len
== (size_t) (end
- start
))
4320 error (_("corrupt .debug_sup section: filename is not NUL terminated\n"));
4323 start
+= sup_filename_len
+ 1;
4325 checksum_len
= read_leb128 (start
, end
, false /* unsigned */, & num_read
, & status
);
4328 error (_("corrupt .debug_sup section: bad LEB128 field for checksum length\n"));
4332 if (checksum_len
> (dwarf_vma
) (end
- start
))
4334 error (_("corrupt .debug_sup section: checksum length is longer than the remaining section length\n"));
4335 checksum_len
= end
- start
;
4337 else if (checksum_len
< (dwarf_vma
) (end
- start
))
4339 warn (_("corrupt .debug_sup section: there are 0x%lx extra, unused bytes at the end of the section\n"),
4340 (long) ((end
- start
) - checksum_len
));
4343 printf (_(" Version: %u\n"), version
);
4344 printf (_(" Is Supp: %u\n"), is_supplementary
);
4345 printf (_(" Filename: %s\n"), sup_filename
);
4346 printf (_(" Checksum Len: %lu\n"), (long) checksum_len
);
4347 if (checksum_len
> 0)
4349 printf (_(" Checksum: "));
4350 while (checksum_len
--)
4351 printf ("0x%x ", * start
++ );
4358 display_debug_lines_raw (struct dwarf_section
* section
,
4359 unsigned char * data
,
4360 unsigned char * end
,
4363 unsigned char *start
= section
->start
;
4364 int verbose_view
= 0;
4366 introduce (section
, true);
4370 static DWARF2_Internal_LineInfo saved_linfo
;
4371 DWARF2_Internal_LineInfo linfo
;
4372 unsigned char *standard_opcodes
;
4373 unsigned char *end_of_sequence
;
4376 if (startswith (section
->name
, ".debug_line.")
4377 /* Note: the following does not apply to .debug_line.dwo sections.
4378 These are full debug_line sections. */
4379 && strcmp (section
->name
, ".debug_line.dwo") != 0)
4381 /* Sections named .debug_line.<foo> are fragments of a .debug_line
4382 section containing just the Line Number Statements. They are
4383 created by the assembler and intended to be used alongside gcc's
4384 -ffunction-sections command line option. When the linker's
4385 garbage collection decides to discard a .text.<foo> section it
4386 can then also discard the line number information in .debug_line.<foo>.
4388 Since the section is a fragment it does not have the details
4389 needed to fill out a LineInfo structure, so instead we use the
4390 details from the last full debug_line section that we processed. */
4391 end_of_sequence
= end
;
4392 standard_opcodes
= NULL
;
4393 linfo
= saved_linfo
;
4394 /* PR 17531: file: 0522b371. */
4395 if (linfo
.li_line_range
== 0)
4397 warn (_("Partial .debug_line. section encountered without a prior full .debug_line section\n"));
4400 reset_state_machine (linfo
.li_default_is_stmt
);
4404 unsigned char * hdrptr
;
4406 if ((hdrptr
= read_debug_line_header (section
, data
, end
, & linfo
,
4407 & end_of_sequence
)) == NULL
)
4410 printf (_(" Offset: 0x%lx\n"), (long)(data
- start
));
4411 printf (_(" Length: %ld\n"), (long) linfo
.li_length
);
4412 printf (_(" DWARF Version: %d\n"), linfo
.li_version
);
4413 if (linfo
.li_version
>= 5)
4415 printf (_(" Address size (bytes): %d\n"), linfo
.li_address_size
);
4416 printf (_(" Segment selector (bytes): %d\n"), linfo
.li_segment_size
);
4418 printf (_(" Prologue Length: %d\n"), (int) linfo
.li_prologue_length
);
4419 printf (_(" Minimum Instruction Length: %d\n"), linfo
.li_min_insn_length
);
4420 if (linfo
.li_version
>= 4)
4421 printf (_(" Maximum Ops per Instruction: %d\n"), linfo
.li_max_ops_per_insn
);
4422 printf (_(" Initial value of 'is_stmt': %d\n"), linfo
.li_default_is_stmt
);
4423 printf (_(" Line Base: %d\n"), linfo
.li_line_base
);
4424 printf (_(" Line Range: %d\n"), linfo
.li_line_range
);
4425 printf (_(" Opcode Base: %d\n"), linfo
.li_opcode_base
);
4427 /* PR 17512: file: 1665-6428-0.004. */
4428 if (linfo
.li_line_range
== 0)
4430 warn (_("Line range of 0 is invalid, using 1 instead\n"));
4431 linfo
.li_line_range
= 1;
4434 reset_state_machine (linfo
.li_default_is_stmt
);
4436 /* Display the contents of the Opcodes table. */
4437 standard_opcodes
= hdrptr
;
4439 /* PR 17512: file: 002-417945-0.004. */
4440 if (standard_opcodes
+ linfo
.li_opcode_base
>= end
)
4442 warn (_("Line Base extends beyond end of section\n"));
4446 printf (_("\n Opcodes:\n"));
4448 for (i
= 1; i
< linfo
.li_opcode_base
; i
++)
4449 printf (ngettext (" Opcode %d has %d arg\n",
4450 " Opcode %d has %d args\n",
4451 standard_opcodes
[i
- 1]),
4452 i
, standard_opcodes
[i
- 1]);
4454 /* Display the contents of the Directory table. */
4455 data
= standard_opcodes
+ linfo
.li_opcode_base
- 1;
4457 if (linfo
.li_version
>= 5)
4459 load_debug_section_with_follow (line_str
, file
);
4461 data
= display_formatted_table (data
, start
, end
, &linfo
, section
,
4463 data
= display_formatted_table (data
, start
, end
, &linfo
, section
,
4469 printf (_("\n The Directory Table is empty.\n"));
4472 unsigned int last_dir_entry
= 0;
4474 printf (_("\n The Directory Table (offset 0x%lx):\n"),
4475 (long)(data
- start
));
4477 while (data
< end
&& *data
!= 0)
4479 printf (" %d\t%.*s\n", ++last_dir_entry
, (int) (end
- data
), data
);
4481 data
+= strnlen ((char *) data
, end
- data
);
4486 /* PR 17512: file: 002-132094-0.004. */
4487 if (data
>= end
- 1)
4491 /* Skip the NUL at the end of the table. */
4495 /* Display the contents of the File Name table. */
4496 if (data
>= end
|| *data
== 0)
4497 printf (_("\n The File Name Table is empty.\n"));
4500 printf (_("\n The File Name Table (offset 0x%lx):\n"),
4501 (long)(data
- start
));
4502 printf (_(" Entry\tDir\tTime\tSize\tName\n"));
4504 while (data
< end
&& *data
!= 0)
4506 unsigned char *name
;
4509 printf (" %d\t", ++state_machine_regs
.last_file_entry
);
4511 data
+= strnlen ((char *) data
, end
- data
);
4515 READ_ULEB (val
, data
, end
);
4516 printf ("%s\t", dwarf_vmatoa ("u", val
));
4517 READ_ULEB (val
, data
, end
);
4518 printf ("%s\t", dwarf_vmatoa ("u", val
));
4519 READ_ULEB (val
, data
, end
);
4520 printf ("%s\t", dwarf_vmatoa ("u", val
));
4521 printf ("%.*s\n", (int)(end
- name
), name
);
4525 warn (_("Corrupt file name table entry\n"));
4531 /* Skip the NUL at the end of the table. */
4537 saved_linfo
= linfo
;
4540 /* Now display the statements. */
4541 if (data
>= end_of_sequence
)
4542 printf (_(" No Line Number Statements.\n"));
4545 printf (_(" Line Number Statements:\n"));
4547 while (data
< end_of_sequence
)
4549 unsigned char op_code
;
4550 dwarf_signed_vma adv
;
4553 printf (" [0x%08lx]", (long)(data
- start
));
4557 if (op_code
>= linfo
.li_opcode_base
)
4559 op_code
-= linfo
.li_opcode_base
;
4560 uladv
= (op_code
/ linfo
.li_line_range
);
4561 if (linfo
.li_max_ops_per_insn
== 1)
4563 uladv
*= linfo
.li_min_insn_length
;
4564 state_machine_regs
.address
+= uladv
;
4566 state_machine_regs
.view
= 0;
4567 printf (_(" Special opcode %d: "
4568 "advance Address by %s to 0x%s%s"),
4569 op_code
, dwarf_vmatoa ("u", uladv
),
4570 dwarf_vmatoa ("x", state_machine_regs
.address
),
4571 verbose_view
&& uladv
4572 ? _(" (reset view)") : "");
4577 = ((state_machine_regs
.op_index
+ uladv
)
4578 / linfo
.li_max_ops_per_insn
)
4579 * linfo
.li_min_insn_length
;
4581 state_machine_regs
.address
+= addrdelta
;
4582 state_machine_regs
.op_index
4583 = (state_machine_regs
.op_index
+ uladv
)
4584 % linfo
.li_max_ops_per_insn
;
4586 state_machine_regs
.view
= 0;
4587 printf (_(" Special opcode %d: "
4588 "advance Address by %s to 0x%s[%d]%s"),
4589 op_code
, dwarf_vmatoa ("u", uladv
),
4590 dwarf_vmatoa ("x", state_machine_regs
.address
),
4591 state_machine_regs
.op_index
,
4592 verbose_view
&& addrdelta
4593 ? _(" (reset view)") : "");
4595 adv
= (op_code
% linfo
.li_line_range
) + linfo
.li_line_base
;
4596 state_machine_regs
.line
+= adv
;
4597 printf (_(" and Line by %s to %d"),
4598 dwarf_vmatoa ("d", adv
), state_machine_regs
.line
);
4599 if (verbose_view
|| state_machine_regs
.view
)
4600 printf (_(" (view %u)\n"), state_machine_regs
.view
);
4603 state_machine_regs
.view
++;
4608 case DW_LNS_extended_op
:
4609 data
+= process_extended_line_op (data
,
4610 linfo
.li_default_is_stmt
,
4615 printf (_(" Copy"));
4616 if (verbose_view
|| state_machine_regs
.view
)
4617 printf (_(" (view %u)\n"), state_machine_regs
.view
);
4620 state_machine_regs
.view
++;
4623 case DW_LNS_advance_pc
:
4624 READ_ULEB (uladv
, data
, end
);
4625 if (linfo
.li_max_ops_per_insn
== 1)
4627 uladv
*= linfo
.li_min_insn_length
;
4628 state_machine_regs
.address
+= uladv
;
4630 state_machine_regs
.view
= 0;
4631 printf (_(" Advance PC by %s to 0x%s%s\n"),
4632 dwarf_vmatoa ("u", uladv
),
4633 dwarf_vmatoa ("x", state_machine_regs
.address
),
4634 verbose_view
&& uladv
4635 ? _(" (reset view)") : "");
4640 = ((state_machine_regs
.op_index
+ uladv
)
4641 / linfo
.li_max_ops_per_insn
)
4642 * linfo
.li_min_insn_length
;
4643 state_machine_regs
.address
4645 state_machine_regs
.op_index
4646 = (state_machine_regs
.op_index
+ uladv
)
4647 % linfo
.li_max_ops_per_insn
;
4649 state_machine_regs
.view
= 0;
4650 printf (_(" Advance PC by %s to 0x%s[%d]%s\n"),
4651 dwarf_vmatoa ("u", uladv
),
4652 dwarf_vmatoa ("x", state_machine_regs
.address
),
4653 state_machine_regs
.op_index
,
4654 verbose_view
&& addrdelta
4655 ? _(" (reset view)") : "");
4659 case DW_LNS_advance_line
:
4660 READ_SLEB (adv
, data
, end
);
4661 state_machine_regs
.line
+= adv
;
4662 printf (_(" Advance Line by %s to %d\n"),
4663 dwarf_vmatoa ("d", adv
),
4664 state_machine_regs
.line
);
4667 case DW_LNS_set_file
:
4668 READ_ULEB (uladv
, data
, end
);
4669 printf (_(" Set File Name to entry %s in the File Name Table\n"),
4670 dwarf_vmatoa ("u", uladv
));
4671 state_machine_regs
.file
= uladv
;
4674 case DW_LNS_set_column
:
4675 READ_ULEB (uladv
, data
, end
);
4676 printf (_(" Set column to %s\n"),
4677 dwarf_vmatoa ("u", uladv
));
4678 state_machine_regs
.column
= uladv
;
4681 case DW_LNS_negate_stmt
:
4682 adv
= state_machine_regs
.is_stmt
;
4684 printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv
));
4685 state_machine_regs
.is_stmt
= adv
;
4688 case DW_LNS_set_basic_block
:
4689 printf (_(" Set basic block\n"));
4690 state_machine_regs
.basic_block
= 1;
4693 case DW_LNS_const_add_pc
:
4694 uladv
= ((255 - linfo
.li_opcode_base
) / linfo
.li_line_range
);
4695 if (linfo
.li_max_ops_per_insn
)
4697 uladv
*= linfo
.li_min_insn_length
;
4698 state_machine_regs
.address
+= uladv
;
4700 state_machine_regs
.view
= 0;
4701 printf (_(" Advance PC by constant %s to 0x%s%s\n"),
4702 dwarf_vmatoa ("u", uladv
),
4703 dwarf_vmatoa ("x", state_machine_regs
.address
),
4704 verbose_view
&& uladv
4705 ? _(" (reset view)") : "");
4710 = ((state_machine_regs
.op_index
+ uladv
)
4711 / linfo
.li_max_ops_per_insn
)
4712 * linfo
.li_min_insn_length
;
4713 state_machine_regs
.address
4715 state_machine_regs
.op_index
4716 = (state_machine_regs
.op_index
+ uladv
)
4717 % linfo
.li_max_ops_per_insn
;
4719 state_machine_regs
.view
= 0;
4720 printf (_(" Advance PC by constant %s to 0x%s[%d]%s\n"),
4721 dwarf_vmatoa ("u", uladv
),
4722 dwarf_vmatoa ("x", state_machine_regs
.address
),
4723 state_machine_regs
.op_index
,
4724 verbose_view
&& addrdelta
4725 ? _(" (reset view)") : "");
4729 case DW_LNS_fixed_advance_pc
:
4730 SAFE_BYTE_GET_AND_INC (uladv
, data
, 2, end
);
4731 state_machine_regs
.address
+= uladv
;
4732 state_machine_regs
.op_index
= 0;
4733 printf (_(" Advance PC by fixed size amount %s to 0x%s\n"),
4734 dwarf_vmatoa ("u", uladv
),
4735 dwarf_vmatoa ("x", state_machine_regs
.address
));
4736 /* Do NOT reset view. */
4739 case DW_LNS_set_prologue_end
:
4740 printf (_(" Set prologue_end to true\n"));
4743 case DW_LNS_set_epilogue_begin
:
4744 printf (_(" Set epilogue_begin to true\n"));
4747 case DW_LNS_set_isa
:
4748 READ_ULEB (uladv
, data
, end
);
4749 printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv
));
4753 printf (_(" Unknown opcode %d with operands: "), op_code
);
4755 if (standard_opcodes
!= NULL
)
4756 for (i
= standard_opcodes
[op_code
- 1]; i
> 0 ; --i
)
4758 READ_ULEB (uladv
, data
, end
);
4759 printf ("0x%s%s", dwarf_vmatoa ("x", uladv
),
4760 i
== 1 ? "" : ", ");
4775 unsigned char *name
;
4776 unsigned int directory_index
;
4777 unsigned int modification_date
;
4778 unsigned int length
;
4781 /* Output a decoded representation of the .debug_line section. */
4784 display_debug_lines_decoded (struct dwarf_section
* section
,
4785 unsigned char * start
,
4786 unsigned char * data
,
4787 unsigned char * end
,
4790 static DWARF2_Internal_LineInfo saved_linfo
;
4792 introduce (section
, false);
4796 /* This loop amounts to one iteration per compilation unit. */
4797 DWARF2_Internal_LineInfo linfo
;
4798 unsigned char *standard_opcodes
;
4799 unsigned char *end_of_sequence
;
4801 File_Entry
*file_table
= NULL
;
4802 unsigned int n_files
= 0;
4803 unsigned char **directory_table
= NULL
;
4804 dwarf_vma n_directories
= 0;
4806 if (startswith (section
->name
, ".debug_line.")
4807 /* Note: the following does not apply to .debug_line.dwo sections.
4808 These are full debug_line sections. */
4809 && strcmp (section
->name
, ".debug_line.dwo") != 0)
4811 /* See comment in display_debug_lines_raw(). */
4812 end_of_sequence
= end
;
4813 standard_opcodes
= NULL
;
4814 linfo
= saved_linfo
;
4815 /* PR 17531: file: 0522b371. */
4816 if (linfo
.li_line_range
== 0)
4818 warn (_("Partial .debug_line. section encountered without a prior full .debug_line section\n"));
4821 reset_state_machine (linfo
.li_default_is_stmt
);
4825 unsigned char *hdrptr
;
4827 if ((hdrptr
= read_debug_line_header (section
, data
, end
, & linfo
,
4828 & end_of_sequence
)) == NULL
)
4831 /* PR 17531: file: 0522b371. */
4832 if (linfo
.li_line_range
== 0)
4834 warn (_("Line range of 0 is invalid, using 1 instead\n"));
4835 linfo
.li_line_range
= 1;
4837 reset_state_machine (linfo
.li_default_is_stmt
);
4839 /* Save a pointer to the contents of the Opcodes table. */
4840 standard_opcodes
= hdrptr
;
4842 /* Traverse the Directory table just to count entries. */
4843 data
= standard_opcodes
+ linfo
.li_opcode_base
- 1;
4847 warn (_("opcode base of %d extends beyond end of section\n"),
4848 linfo
.li_opcode_base
);
4852 if (linfo
.li_version
>= 5)
4854 unsigned char *format_start
, format_count
, *format
;
4855 dwarf_vma formati
, entryi
;
4857 load_debug_section_with_follow (line_str
, fileptr
);
4859 /* Skip directories format. */
4860 SAFE_BYTE_GET_AND_INC (format_count
, data
, 1, end
);
4861 if (do_checks
&& format_count
> 1)
4862 warn (_("Unexpectedly large number of columns in the directory name table (%u)\n"),
4864 format_start
= data
;
4865 for (formati
= 0; formati
< format_count
; formati
++)
4867 SKIP_ULEB (data
, end
);
4868 SKIP_ULEB (data
, end
);
4871 READ_ULEB (n_directories
, data
, end
);
4874 warn (_("Corrupt directories list\n"));
4878 if (n_directories
== 0)
4879 directory_table
= NULL
;
4881 directory_table
= (unsigned char **)
4882 xmalloc (n_directories
* sizeof (unsigned char *));
4884 for (entryi
= 0; entryi
< n_directories
; entryi
++)
4886 unsigned char **pathp
= &directory_table
[entryi
];
4888 format
= format_start
;
4889 for (formati
= 0; formati
< format_count
; formati
++)
4891 dwarf_vma content_type
, form
;
4894 READ_ULEB (content_type
, format
, end
);
4895 READ_ULEB (form
, format
, end
);
4898 warn (_("Corrupt directories list\n"));
4901 switch (content_type
)
4906 case DW_FORM_string
:
4909 case DW_FORM_line_strp
:
4910 SAFE_BYTE_GET (uvalue
, data
, linfo
.li_offset_size
,
4912 /* Remove const by the cast. */
4913 *pathp
= (unsigned char *)
4914 fetch_indirect_line_string (uvalue
);
4919 data
= read_and_display_attr_value (0, form
, 0, start
,
4921 linfo
.li_offset_size
,
4928 warn (_("Corrupt directories list\n"));
4933 /* Skip files format. */
4934 SAFE_BYTE_GET_AND_INC (format_count
, data
, 1, end
);
4935 if (do_checks
&& format_count
> 5)
4936 warn (_("Unexpectedly large number of columns in the file name table (%u)\n"),
4938 format_start
= data
;
4939 for (formati
= 0; formati
< format_count
; formati
++)
4941 SKIP_ULEB (data
, end
);
4942 SKIP_ULEB (data
, end
);
4945 READ_ULEB (n_files
, data
, end
);
4946 if (data
>= end
&& n_files
> 0)
4948 warn (_("Corrupt file name list\n"));
4955 file_table
= (File_Entry
*) xcalloc (1, n_files
4956 * sizeof (File_Entry
));
4958 for (entryi
= 0; entryi
< n_files
; entryi
++)
4960 File_Entry
*file
= &file_table
[entryi
];
4962 format
= format_start
;
4963 for (formati
= 0; formati
< format_count
; formati
++)
4965 dwarf_vma content_type
, form
;
4969 READ_ULEB (content_type
, format
, end
);
4970 READ_ULEB (form
, format
, end
);
4973 warn (_("Corrupt file name list\n"));
4976 switch (content_type
)
4981 case DW_FORM_string
:
4984 case DW_FORM_line_strp
:
4985 SAFE_BYTE_GET (uvalue
, data
, linfo
.li_offset_size
,
4987 /* Remove const by the cast. */
4988 file
->name
= (unsigned char *)
4989 fetch_indirect_line_string (uvalue
);
4993 case DW_LNCT_directory_index
:
4997 SAFE_BYTE_GET (file
->directory_index
, data
, 1,
5001 SAFE_BYTE_GET (file
->directory_index
, data
, 2,
5006 READ_ULEB (file
->directory_index
, tmp
, end
);
5011 data
= read_and_display_attr_value (0, form
, 0, start
,
5013 linfo
.li_offset_size
,
5020 warn (_("Corrupt file name list\n"));
5029 unsigned char *ptr_directory_table
= data
;
5031 while (data
< end
&& *data
!= 0)
5033 data
+= strnlen ((char *) data
, end
- data
);
5042 warn (_("directory table ends unexpectedly\n"));
5047 /* Go through the directory table again to save the directories. */
5048 directory_table
= (unsigned char **)
5049 xmalloc (n_directories
* sizeof (unsigned char *));
5052 while (*ptr_directory_table
!= 0)
5054 directory_table
[i
] = ptr_directory_table
;
5056 += strlen ((char *) ptr_directory_table
) + 1;
5060 /* Skip the NUL at the end of the table. */
5063 /* Traverse the File Name table just to count the entries. */
5064 if (data
< end
&& *data
!= 0)
5066 unsigned char *ptr_file_name_table
= data
;
5068 while (data
< end
&& *data
!= 0)
5070 /* Skip Name, directory index, last modification
5071 time and length of file. */
5072 data
+= strnlen ((char *) data
, end
- data
);
5075 SKIP_ULEB (data
, end
);
5076 SKIP_ULEB (data
, end
);
5077 SKIP_ULEB (data
, end
);
5083 warn (_("file table ends unexpectedly\n"));
5088 /* Go through the file table again to save the strings. */
5089 file_table
= (File_Entry
*) xmalloc (n_files
* sizeof (File_Entry
));
5092 while (*ptr_file_name_table
!= 0)
5094 file_table
[i
].name
= ptr_file_name_table
;
5096 += strlen ((char *) ptr_file_name_table
) + 1;
5098 /* We are not interested in directory, time or size. */
5099 READ_ULEB (file_table
[i
].directory_index
,
5100 ptr_file_name_table
, end
);
5101 READ_ULEB (file_table
[i
].modification_date
,
5102 ptr_file_name_table
, end
);
5103 READ_ULEB (file_table
[i
].length
,
5104 ptr_file_name_table
, end
);
5110 /* Skip the NUL at the end of the table. */
5114 /* Print the Compilation Unit's name and a header. */
5115 if (file_table
== NULL
)
5116 printf (_("CU: No directory table\n"));
5117 else if (directory_table
== NULL
)
5118 printf (_("CU: %s:\n"), file_table
[0].name
);
5121 unsigned int ix
= file_table
[0].directory_index
;
5122 const char *directory
;
5127 else if (n_directories
== 0)
5128 directory
= _("<unknown>");
5129 else if (ix
> n_directories
)
5131 warn (_("directory index %u > number of directories %s\n"),
5132 ix
, dwarf_vmatoa ("u", n_directories
));
5133 directory
= _("<corrupt>");
5136 directory
= (char *) directory_table
[ix
- 1];
5138 if (do_wide
|| strlen (directory
) < 76)
5139 printf (_("CU: %s/%s:\n"), directory
, file_table
[0].name
);
5141 printf ("%s:\n", file_table
[0].name
);
5145 printf (_("File name Line number Starting address View Stmt\n"));
5147 printf (_("CU: Empty file name table\n"));
5148 saved_linfo
= linfo
;
5151 /* This loop iterates through the Dwarf Line Number Program. */
5152 while (data
< end_of_sequence
)
5154 unsigned char op_code
;
5157 unsigned long int uladv
;
5158 int is_special_opcode
= 0;
5163 if (op_code
>= linfo
.li_opcode_base
)
5165 op_code
-= linfo
.li_opcode_base
;
5166 uladv
= (op_code
/ linfo
.li_line_range
);
5167 if (linfo
.li_max_ops_per_insn
== 1)
5169 uladv
*= linfo
.li_min_insn_length
;
5170 state_machine_regs
.address
+= uladv
;
5172 state_machine_regs
.view
= 0;
5177 = ((state_machine_regs
.op_index
+ uladv
)
5178 / linfo
.li_max_ops_per_insn
)
5179 * linfo
.li_min_insn_length
;
5180 state_machine_regs
.address
5182 state_machine_regs
.op_index
5183 = (state_machine_regs
.op_index
+ uladv
)
5184 % linfo
.li_max_ops_per_insn
;
5186 state_machine_regs
.view
= 0;
5189 adv
= (op_code
% linfo
.li_line_range
) + linfo
.li_line_base
;
5190 state_machine_regs
.line
+= adv
;
5191 is_special_opcode
= 1;
5192 /* Increment view after printing this row. */
5197 case DW_LNS_extended_op
:
5199 unsigned int ext_op_code_len
;
5200 unsigned char ext_op_code
;
5201 unsigned char *op_code_end
;
5202 unsigned char *op_code_data
= data
;
5204 READ_ULEB (ext_op_code_len
, op_code_data
, end_of_sequence
);
5205 op_code_end
= op_code_data
+ ext_op_code_len
;
5206 if (ext_op_code_len
== 0 || op_code_end
> end_of_sequence
)
5208 warn (_("Badly formed extended line op encountered!\n"));
5211 ext_op_code
= *op_code_data
++;
5215 switch (ext_op_code
)
5217 case DW_LNE_end_sequence
:
5218 /* Reset stuff after printing this row. */
5220 case DW_LNE_set_address
:
5221 SAFE_BYTE_GET_AND_INC (state_machine_regs
.address
,
5223 op_code_end
- op_code_data
,
5225 state_machine_regs
.op_index
= 0;
5226 state_machine_regs
.view
= 0;
5228 case DW_LNE_define_file
:
5229 file_table
= (File_Entry
*) xrealloc
5230 (file_table
, (n_files
+ 1) * sizeof (File_Entry
));
5232 ++state_machine_regs
.last_file_entry
;
5233 /* Source file name. */
5234 file_table
[n_files
].name
= op_code_data
;
5235 op_code_data
+= strlen ((char *) op_code_data
) + 1;
5236 /* Directory index. */
5237 READ_ULEB (file_table
[n_files
].directory_index
,
5238 op_code_data
, op_code_end
);
5239 /* Last modification time. */
5240 READ_ULEB (file_table
[n_files
].modification_date
,
5241 op_code_data
, op_code_end
);
5243 READ_ULEB (file_table
[n_files
].length
,
5244 op_code_data
, op_code_end
);
5248 case DW_LNE_set_discriminator
:
5249 case DW_LNE_HP_set_sequence
:
5250 /* Simply ignored. */
5254 printf (_("UNKNOWN (%u): length %ld\n"),
5255 ext_op_code
, (long int) (op_code_data
- data
));
5262 /* Increment view after printing this row. */
5265 case DW_LNS_advance_pc
:
5266 READ_ULEB (uladv
, data
, end
);
5267 if (linfo
.li_max_ops_per_insn
== 1)
5269 uladv
*= linfo
.li_min_insn_length
;
5270 state_machine_regs
.address
+= uladv
;
5272 state_machine_regs
.view
= 0;
5277 = ((state_machine_regs
.op_index
+ uladv
)
5278 / linfo
.li_max_ops_per_insn
)
5279 * linfo
.li_min_insn_length
;
5280 state_machine_regs
.address
5282 state_machine_regs
.op_index
5283 = (state_machine_regs
.op_index
+ uladv
)
5284 % linfo
.li_max_ops_per_insn
;
5286 state_machine_regs
.view
= 0;
5290 case DW_LNS_advance_line
:
5291 READ_SLEB (adv
, data
, end
);
5292 state_machine_regs
.line
+= adv
;
5295 case DW_LNS_set_file
:
5296 READ_ULEB (uladv
, data
, end
);
5297 state_machine_regs
.file
= uladv
;
5300 unsigned file
= state_machine_regs
.file
;
5303 if (linfo
.li_version
< 5)
5305 if (file_table
== NULL
|| n_files
== 0)
5306 printf (_("\n [Use file table entry %d]\n"), file
);
5308 else if (file
>= n_files
)
5310 warn (_("file index %u > number of files %u\n"), file
, n_files
);
5311 printf (_("\n <over large file table index %u>"), file
);
5313 else if ((dir
= file_table
[file
].directory_index
) == 0)
5314 /* If directory index is 0, that means current directory. */
5315 printf ("\n./%s:[++]\n", file_table
[file
].name
);
5316 else if (directory_table
== NULL
|| n_directories
== 0)
5317 printf (_("\n [Use file %s in directory table entry %d]\n"),
5318 file_table
[file
].name
, dir
);
5320 else if (dir
> n_directories
)
5322 warn (_("directory index %u > number of directories %s\n"),
5323 dir
, dwarf_vmatoa ("u", n_directories
));
5324 printf (_("\n <over large directory table entry %u>\n"), dir
);
5327 printf ("\n%s/%s:\n",
5328 /* The directory index starts counting at 1. */
5329 directory_table
[dir
- 1], file_table
[file
].name
);
5333 case DW_LNS_set_column
:
5334 READ_ULEB (uladv
, data
, end
);
5335 state_machine_regs
.column
= uladv
;
5338 case DW_LNS_negate_stmt
:
5339 adv
= state_machine_regs
.is_stmt
;
5341 state_machine_regs
.is_stmt
= adv
;
5344 case DW_LNS_set_basic_block
:
5345 state_machine_regs
.basic_block
= 1;
5348 case DW_LNS_const_add_pc
:
5349 uladv
= ((255 - linfo
.li_opcode_base
) / linfo
.li_line_range
);
5350 if (linfo
.li_max_ops_per_insn
== 1)
5352 uladv
*= linfo
.li_min_insn_length
;
5353 state_machine_regs
.address
+= uladv
;
5355 state_machine_regs
.view
= 0;
5360 = ((state_machine_regs
.op_index
+ uladv
)
5361 / linfo
.li_max_ops_per_insn
)
5362 * linfo
.li_min_insn_length
;
5363 state_machine_regs
.address
5365 state_machine_regs
.op_index
5366 = (state_machine_regs
.op_index
+ uladv
)
5367 % linfo
.li_max_ops_per_insn
;
5369 state_machine_regs
.view
= 0;
5373 case DW_LNS_fixed_advance_pc
:
5374 SAFE_BYTE_GET_AND_INC (uladv
, data
, 2, end
);
5375 state_machine_regs
.address
+= uladv
;
5376 state_machine_regs
.op_index
= 0;
5377 /* Do NOT reset view. */
5380 case DW_LNS_set_prologue_end
:
5383 case DW_LNS_set_epilogue_begin
:
5386 case DW_LNS_set_isa
:
5387 READ_ULEB (uladv
, data
, end
);
5388 printf (_(" Set ISA to %lu\n"), uladv
);
5392 printf (_(" Unknown opcode %d with operands: "), op_code
);
5394 if (standard_opcodes
!= NULL
)
5395 for (i
= standard_opcodes
[op_code
- 1]; i
> 0 ; --i
)
5399 READ_ULEB (val
, data
, end
);
5400 printf ("0x%s%s", dwarf_vmatoa ("x", val
),
5401 i
== 1 ? "" : ", ");
5407 /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row
5408 to the DWARF address/line matrix. */
5409 if ((is_special_opcode
) || (xop
== -DW_LNE_end_sequence
)
5410 || (xop
== DW_LNS_copy
))
5412 const unsigned int MAX_FILENAME_LENGTH
= 35;
5414 char *newFileName
= NULL
;
5415 size_t fileNameLength
;
5419 unsigned indx
= state_machine_regs
.file
;
5421 if (linfo
.li_version
< 5)
5424 if (indx
>= n_files
)
5426 warn (_("corrupt file index %u encountered\n"), indx
);
5427 fileName
= _("<corrupt>");
5430 fileName
= (char *) file_table
[indx
].name
;
5433 fileName
= _("<unknown>");
5435 fileNameLength
= strlen (fileName
);
5436 newFileName
= fileName
;
5437 if (fileNameLength
> MAX_FILENAME_LENGTH
&& !do_wide
)
5439 newFileName
= (char *) xmalloc (MAX_FILENAME_LENGTH
+ 1);
5440 /* Truncate file name */
5441 memcpy (newFileName
,
5442 fileName
+ fileNameLength
- MAX_FILENAME_LENGTH
,
5443 MAX_FILENAME_LENGTH
);
5444 newFileName
[MAX_FILENAME_LENGTH
] = 0;
5447 /* A row with end_seq set to true has a meaningful address, but
5448 the other information in the same row is not significant.
5449 In such a row, print line as "-", and don't print
5451 if (!do_wide
|| fileNameLength
<= MAX_FILENAME_LENGTH
)
5453 if (linfo
.li_max_ops_per_insn
== 1)
5455 if (xop
== -DW_LNE_end_sequence
)
5456 printf ("%-35s %11s %#18" DWARF_VMA_FMT
"x",
5458 state_machine_regs
.address
);
5460 printf ("%-35s %11d %#18" DWARF_VMA_FMT
"x",
5461 newFileName
, state_machine_regs
.line
,
5462 state_machine_regs
.address
);
5466 if (xop
== -DW_LNE_end_sequence
)
5467 printf ("%-35s %11s %#18" DWARF_VMA_FMT
"x[%d]",
5469 state_machine_regs
.address
,
5470 state_machine_regs
.op_index
);
5472 printf ("%-35s %11d %#18" DWARF_VMA_FMT
"x[%d]",
5473 newFileName
, state_machine_regs
.line
,
5474 state_machine_regs
.address
,
5475 state_machine_regs
.op_index
);
5480 if (linfo
.li_max_ops_per_insn
== 1)
5482 if (xop
== -DW_LNE_end_sequence
)
5483 printf ("%s %11s %#18" DWARF_VMA_FMT
"x",
5485 state_machine_regs
.address
);
5487 printf ("%s %11d %#18" DWARF_VMA_FMT
"x",
5488 newFileName
, state_machine_regs
.line
,
5489 state_machine_regs
.address
);
5493 if (xop
== -DW_LNE_end_sequence
)
5494 printf ("%s %11s %#18" DWARF_VMA_FMT
"x[%d]",
5496 state_machine_regs
.address
,
5497 state_machine_regs
.op_index
);
5499 printf ("%s %11d %#18" DWARF_VMA_FMT
"x[%d]",
5500 newFileName
, state_machine_regs
.line
,
5501 state_machine_regs
.address
,
5502 state_machine_regs
.op_index
);
5506 if (xop
!= -DW_LNE_end_sequence
)
5508 if (state_machine_regs
.view
)
5509 printf (" %6u", state_machine_regs
.view
);
5513 if (state_machine_regs
.is_stmt
)
5518 state_machine_regs
.view
++;
5520 if (xop
== -DW_LNE_end_sequence
)
5522 reset_state_machine (linfo
.li_default_is_stmt
);
5526 if (newFileName
!= fileName
)
5538 if (directory_table
)
5540 free (directory_table
);
5541 directory_table
= NULL
;
5552 display_debug_lines (struct dwarf_section
*section
, void *file
)
5554 unsigned char *data
= section
->start
;
5555 unsigned char *end
= data
+ section
->size
;
5557 int retValDecoded
= 1;
5559 if (do_debug_lines
== 0)
5560 do_debug_lines
|= FLAG_DEBUG_LINES_RAW
;
5562 if (do_debug_lines
& FLAG_DEBUG_LINES_RAW
)
5563 retValRaw
= display_debug_lines_raw (section
, data
, end
, file
);
5565 if (do_debug_lines
& FLAG_DEBUG_LINES_DECODED
)
5566 retValDecoded
= display_debug_lines_decoded (section
, data
, data
, end
, file
);
5568 if (!retValRaw
|| !retValDecoded
)
5575 find_debug_info_for_offset (unsigned long offset
)
5579 if (num_debug_info_entries
== DEBUG_INFO_UNAVAILABLE
)
5582 for (i
= 0; i
< num_debug_info_entries
; i
++)
5583 if (debug_information
[i
].cu_offset
== offset
)
5584 return debug_information
+ i
;
5590 get_gdb_index_symbol_kind_name (gdb_index_symbol_kind kind
)
5592 /* See gdb/gdb-index.h. */
5593 static const char * const kinds
[] =
5605 return _ (kinds
[kind
]);
5609 display_debug_pubnames_worker (struct dwarf_section
*section
,
5610 void *file ATTRIBUTE_UNUSED
,
5613 DWARF2_Internal_PubNames names
;
5614 unsigned char *start
= section
->start
;
5615 unsigned char *end
= start
+ section
->size
;
5617 /* It does not matter if this load fails,
5618 we test for that later on. */
5619 load_debug_info (file
);
5621 introduce (section
, false);
5625 unsigned char *data
;
5626 unsigned long sec_off
= start
- section
->start
;
5627 unsigned int offset_size
;
5629 SAFE_BYTE_GET_AND_INC (names
.pn_length
, start
, 4, end
);
5630 if (names
.pn_length
== 0xffffffff)
5632 SAFE_BYTE_GET_AND_INC (names
.pn_length
, start
, 8, end
);
5638 if (names
.pn_length
> (size_t) (end
- start
))
5640 warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
5643 dwarf_vmatoa ("x", names
.pn_length
));
5648 start
+= names
.pn_length
;
5650 SAFE_BYTE_GET_AND_INC (names
.pn_version
, data
, 2, start
);
5651 SAFE_BYTE_GET_AND_INC (names
.pn_offset
, data
, offset_size
, start
);
5653 if (num_debug_info_entries
!= DEBUG_INFO_UNAVAILABLE
5654 && num_debug_info_entries
> 0
5655 && find_debug_info_for_offset (names
.pn_offset
) == NULL
)
5656 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
5657 (unsigned long) names
.pn_offset
, section
->name
);
5659 SAFE_BYTE_GET_AND_INC (names
.pn_size
, data
, offset_size
, start
);
5661 printf (_(" Length: %ld\n"),
5662 (long) names
.pn_length
);
5663 printf (_(" Version: %d\n"),
5665 printf (_(" Offset into .debug_info section: 0x%lx\n"),
5666 (unsigned long) names
.pn_offset
);
5667 printf (_(" Size of area in .debug_info section: %ld\n"),
5668 (long) names
.pn_size
);
5670 if (names
.pn_version
!= 2 && names
.pn_version
!= 3)
5672 static int warned
= 0;
5676 warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
5684 printf (_("\n Offset Kind Name\n"));
5686 printf (_("\n Offset\tName\n"));
5690 bfd_size_type maxprint
;
5693 SAFE_BYTE_GET_AND_INC (offset
, data
, offset_size
, start
);
5700 maxprint
= (start
- data
) - 1;
5704 unsigned int kind_data
;
5705 gdb_index_symbol_kind kind
;
5706 const char *kind_name
;
5709 SAFE_BYTE_GET_AND_INC (kind_data
, data
, 1, start
);
5711 /* GCC computes the kind as the upper byte in the CU index
5712 word, and then right shifts it by the CU index size.
5713 Left shift KIND to where the gdb-index.h accessor macros
5715 kind_data
<<= GDB_INDEX_CU_BITSIZE
;
5716 kind
= GDB_INDEX_SYMBOL_KIND_VALUE (kind_data
);
5717 kind_name
= get_gdb_index_symbol_kind_name (kind
);
5718 is_static
= GDB_INDEX_SYMBOL_STATIC_VALUE (kind_data
);
5719 printf (" %-6lx %s,%-10s %.*s\n",
5720 (unsigned long) offset
, is_static
? _("s") : _("g"),
5721 kind_name
, (int) maxprint
, data
);
5724 printf (" %-6lx\t%.*s\n",
5725 (unsigned long) offset
, (int) maxprint
, data
);
5727 data
+= strnlen ((char *) data
, maxprint
);
5740 display_debug_pubnames (struct dwarf_section
*section
, void *file
)
5742 return display_debug_pubnames_worker (section
, file
, 0);
5746 display_debug_gnu_pubnames (struct dwarf_section
*section
, void *file
)
5748 return display_debug_pubnames_worker (section
, file
, 1);
5752 display_debug_macinfo (struct dwarf_section
*section
,
5753 void *file ATTRIBUTE_UNUSED
)
5755 unsigned char *start
= section
->start
;
5756 unsigned char *end
= start
+ section
->size
;
5757 unsigned char *curr
= start
;
5758 enum dwarf_macinfo_record_type op
;
5760 introduce (section
, false);
5764 unsigned int lineno
;
5765 const unsigned char *string
;
5767 op
= (enum dwarf_macinfo_record_type
) *curr
;
5772 case DW_MACINFO_start_file
:
5774 unsigned int filenum
;
5776 READ_ULEB (lineno
, curr
, end
);
5777 READ_ULEB (filenum
, curr
, end
);
5778 printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"),
5783 case DW_MACINFO_end_file
:
5784 printf (_(" DW_MACINFO_end_file\n"));
5787 case DW_MACINFO_define
:
5788 READ_ULEB (lineno
, curr
, end
);
5790 curr
+= strnlen ((char *) string
, end
- string
);
5791 printf (_(" DW_MACINFO_define - lineno : %d macro : %*s\n"),
5792 lineno
, (int) (curr
- string
), string
);
5797 case DW_MACINFO_undef
:
5798 READ_ULEB (lineno
, curr
, end
);
5800 curr
+= strnlen ((char *) string
, end
- string
);
5801 printf (_(" DW_MACINFO_undef - lineno : %d macro : %*s\n"),
5802 lineno
, (int) (curr
- string
), string
);
5807 case DW_MACINFO_vendor_ext
:
5809 unsigned int constant
;
5811 READ_ULEB (constant
, curr
, end
);
5813 curr
+= strnlen ((char *) string
, end
- string
);
5814 printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %*s\n"),
5815 constant
, (int) (curr
- string
), string
);
5826 /* Given LINE_OFFSET into the .debug_line section, attempt to return
5827 filename and dirname corresponding to file name table entry with index
5828 FILEIDX. Return NULL on failure. */
5830 static unsigned char *
5831 get_line_filename_and_dirname (dwarf_vma line_offset
,
5833 unsigned char **dir_name
)
5835 struct dwarf_section
*section
= &debug_displays
[line
].section
;
5836 unsigned char *hdrptr
, *dirtable
, *file_name
;
5837 unsigned int offset_size
;
5838 unsigned int version
, opcode_base
;
5839 dwarf_vma length
, diridx
;
5840 const unsigned char * end
;
5843 if (section
->start
== NULL
5844 || line_offset
>= section
->size
5848 hdrptr
= section
->start
+ line_offset
;
5849 end
= section
->start
+ section
->size
;
5851 SAFE_BYTE_GET_AND_INC (length
, hdrptr
, 4, end
);
5852 if (length
== 0xffffffff)
5854 /* This section is 64-bit DWARF 3. */
5855 SAFE_BYTE_GET_AND_INC (length
, hdrptr
, 8, end
);
5861 if (length
> (size_t) (end
- hdrptr
)
5862 || length
< 2 + offset_size
+ 1 + 3 + 1)
5864 end
= hdrptr
+ length
;
5866 SAFE_BYTE_GET_AND_INC (version
, hdrptr
, 2, end
);
5867 if (version
!= 2 && version
!= 3 && version
!= 4)
5869 hdrptr
+= offset_size
+ 1;/* Skip prologue_length and min_insn_length. */
5871 hdrptr
++; /* Skip max_ops_per_insn. */
5872 hdrptr
+= 3; /* Skip default_is_stmt, line_base, line_range. */
5874 SAFE_BYTE_GET_AND_INC (opcode_base
, hdrptr
, 1, end
);
5875 if (opcode_base
== 0
5876 || opcode_base
- 1 >= (size_t) (end
- hdrptr
))
5879 hdrptr
+= opcode_base
- 1;
5882 /* Skip over dirname table. */
5883 while (*hdrptr
!= '\0')
5885 hdrptr
+= strnlen ((char *) hdrptr
, end
- hdrptr
);
5891 hdrptr
++; /* Skip the NUL at the end of the table. */
5893 /* Now skip over preceding filename table entries. */
5894 for (; hdrptr
< end
&& *hdrptr
!= '\0' && fileidx
> 1; fileidx
--)
5896 hdrptr
+= strnlen ((char *) hdrptr
, end
- hdrptr
);
5899 SKIP_ULEB (hdrptr
, end
);
5900 SKIP_ULEB (hdrptr
, end
);
5901 SKIP_ULEB (hdrptr
, end
);
5903 if (hdrptr
>= end
|| *hdrptr
== '\0')
5907 hdrptr
+= strnlen ((char *) hdrptr
, end
- hdrptr
);
5912 READ_ULEB (diridx
, hdrptr
, end
);
5915 for (; dirtable
< end
&& *dirtable
!= '\0' && diridx
> 1; diridx
--)
5917 dirtable
+= strnlen ((char *) dirtable
, end
- dirtable
);
5921 if (dirtable
>= end
|| *dirtable
== '\0')
5923 *dir_name
= dirtable
;
5928 display_debug_macro (struct dwarf_section
*section
,
5931 unsigned char *start
= section
->start
;
5932 unsigned char *end
= start
+ section
->size
;
5933 unsigned char *curr
= start
;
5934 unsigned char *extended_op_buf
[256];
5935 bool is_dwo
= false;
5936 const char *suffix
= strrchr (section
->name
, '.');
5938 if (suffix
&& strcmp (suffix
, ".dwo") == 0)
5941 load_debug_section_with_follow (str
, file
);
5942 load_debug_section_with_follow (line
, file
);
5943 load_debug_section_with_follow (str_index
, file
);
5945 introduce (section
, false);
5949 unsigned int lineno
, version
, flags
;
5950 unsigned int offset_size
;
5951 const unsigned char *string
;
5952 dwarf_vma line_offset
= 0, sec_offset
= curr
- start
, offset
;
5953 unsigned char **extended_ops
= NULL
;
5955 SAFE_BYTE_GET_AND_INC (version
, curr
, 2, end
);
5956 if (version
!= 4 && version
!= 5)
5958 error (_("Expected to find a version number of 4 or 5 in section %s but found %d instead\n"),
5959 section
->name
, version
);
5963 SAFE_BYTE_GET_AND_INC (flags
, curr
, 1, end
);
5964 offset_size
= (flags
& 1) ? 8 : 4;
5965 printf (_(" Offset: 0x%lx\n"),
5966 (unsigned long) sec_offset
);
5967 printf (_(" Version: %d\n"), version
);
5968 printf (_(" Offset size: %d\n"), offset_size
);
5971 SAFE_BYTE_GET_AND_INC (line_offset
, curr
, offset_size
, end
);
5972 printf (_(" Offset into .debug_line: 0x%lx\n"),
5973 (unsigned long) line_offset
);
5977 unsigned int i
, count
, op
;
5980 SAFE_BYTE_GET_AND_INC (count
, curr
, 1, end
);
5982 memset (extended_op_buf
, 0, sizeof (extended_op_buf
));
5983 extended_ops
= extended_op_buf
;
5986 printf (_(" Extension opcode arguments:\n"));
5987 for (i
= 0; i
< count
; i
++)
5989 SAFE_BYTE_GET_AND_INC (op
, curr
, 1, end
);
5990 extended_ops
[op
] = curr
;
5991 READ_ULEB (nargs
, curr
, end
);
5993 printf (_(" DW_MACRO_%02x has no arguments\n"), op
);
5996 printf (_(" DW_MACRO_%02x arguments: "), op
);
5997 for (n
= 0; n
< nargs
; n
++)
6001 SAFE_BYTE_GET_AND_INC (form
, curr
, 1, end
);
6002 printf ("%s%s", get_FORM_name (form
),
6003 n
== nargs
- 1 ? "\n" : ", ");
6013 case DW_FORM_block1
:
6014 case DW_FORM_block2
:
6015 case DW_FORM_block4
:
6017 case DW_FORM_string
:
6019 case DW_FORM_sec_offset
:
6022 error (_("Invalid extension opcode form %s\n"),
6023 get_FORM_name (form
));
6039 error (_(".debug_macro section not zero terminated\n"));
6043 SAFE_BYTE_GET_AND_INC (op
, curr
, 1, end
);
6049 case DW_MACRO_define
:
6050 READ_ULEB (lineno
, curr
, end
);
6052 curr
+= strnlen ((char *) string
, end
- string
);
6053 printf (_(" DW_MACRO_define - lineno : %d macro : %*s\n"),
6054 lineno
, (int) (curr
- string
), string
);
6059 case DW_MACRO_undef
:
6060 READ_ULEB (lineno
, curr
, end
);
6062 curr
+= strnlen ((char *) string
, end
- string
);
6063 printf (_(" DW_MACRO_undef - lineno : %d macro : %*s\n"),
6064 lineno
, (int) (curr
- string
), string
);
6069 case DW_MACRO_start_file
:
6071 unsigned int filenum
;
6072 unsigned char *file_name
= NULL
, *dir_name
= NULL
;
6074 READ_ULEB (lineno
, curr
, end
);
6075 READ_ULEB (filenum
, curr
, end
);
6077 if ((flags
& 2) == 0)
6078 error (_("DW_MACRO_start_file used, but no .debug_line offset provided.\n"));
6081 = get_line_filename_and_dirname (line_offset
, filenum
,
6083 if (file_name
== NULL
)
6084 printf (_(" DW_MACRO_start_file - lineno: %d filenum: %d\n"),
6087 printf (_(" DW_MACRO_start_file - lineno: %d filenum: %d filename: %s%s%s\n"),
6089 dir_name
!= NULL
? (const char *) dir_name
: "",
6090 dir_name
!= NULL
? "/" : "", file_name
);
6094 case DW_MACRO_end_file
:
6095 printf (_(" DW_MACRO_end_file\n"));
6098 case DW_MACRO_define_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_define_strp - lineno : %d macro : %s\n"),
6109 case DW_MACRO_undef_strp
:
6110 READ_ULEB (lineno
, curr
, end
);
6111 if (version
== 4 && is_dwo
)
6112 READ_ULEB (offset
, curr
, end
);
6114 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6115 string
= fetch_indirect_string (offset
);
6116 printf (_(" DW_MACRO_undef_strp - lineno : %d macro : %s\n"),
6120 case DW_MACRO_import
:
6121 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6122 printf (_(" DW_MACRO_import - offset : 0x%lx\n"),
6123 (unsigned long) offset
);
6126 case DW_MACRO_define_sup
:
6127 READ_ULEB (lineno
, curr
, end
);
6128 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6129 printf (_(" DW_MACRO_define_sup - lineno : %d macro offset : 0x%lx\n"),
6130 lineno
, (unsigned long) offset
);
6133 case DW_MACRO_undef_sup
:
6134 READ_ULEB (lineno
, curr
, end
);
6135 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6136 printf (_(" DW_MACRO_undef_sup - lineno : %d macro offset : 0x%lx\n"),
6137 lineno
, (unsigned long) offset
);
6140 case DW_MACRO_import_sup
:
6141 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6142 printf (_(" DW_MACRO_import_sup - offset : 0x%lx\n"),
6143 (unsigned long) offset
);
6146 case DW_MACRO_define_strx
:
6147 case DW_MACRO_undef_strx
:
6148 READ_ULEB (lineno
, curr
, end
);
6149 READ_ULEB (offset
, curr
, end
);
6150 string
= (const unsigned char *)
6151 fetch_indexed_string (offset
, NULL
, offset_size
, false);
6152 if (op
== DW_MACRO_define_strx
)
6153 printf (" DW_MACRO_define_strx ");
6155 printf (" DW_MACRO_undef_strx ");
6157 printf (_("(with offset %s) "), dwarf_vmatoa ("x", offset
));
6158 printf (_("lineno : %d macro : %s\n"),
6163 if (op
>= DW_MACRO_lo_user
&& op
<= DW_MACRO_hi_user
)
6165 printf (_(" <Target Specific macro op: %#x - UNHANDLED"), op
);
6169 if (extended_ops
== NULL
|| extended_ops
[op
] == NULL
)
6171 error (_(" Unknown macro opcode %02x seen\n"), op
);
6176 /* Skip over unhandled opcodes. */
6178 unsigned char *desc
= extended_ops
[op
];
6179 READ_ULEB (nargs
, desc
, end
);
6182 printf (_(" DW_MACRO_%02x\n"), op
);
6185 printf (_(" DW_MACRO_%02x -"), op
);
6186 for (n
= 0; n
< nargs
; n
++)
6190 /* DW_FORM_implicit_const is not expected here. */
6191 SAFE_BYTE_GET_AND_INC (val
, desc
, 1, end
);
6193 = read_and_display_attr_value (0, val
, 0,
6194 start
, curr
, end
, 0, 0, offset_size
,
6195 version
, NULL
, 0, NULL
,
6213 display_debug_abbrev (struct dwarf_section
*section
,
6214 void *file ATTRIBUTE_UNUSED
)
6216 abbrev_entry
*entry
;
6217 unsigned char *start
= section
->start
;
6219 introduce (section
, false);
6226 offset
= start
- section
->start
;
6227 list
= find_abbrev_list_by_abbrev_offset (0, offset
);
6230 list
= new_abbrev_list (0, offset
);
6231 start
= process_abbrev_set (section
, 0, section
->size
, offset
, list
);
6232 list
->start_of_next_abbrevs
= start
;
6235 start
= list
->start_of_next_abbrevs
;
6237 if (list
->first_abbrev
== NULL
)
6240 printf (_(" Number TAG (0x%lx)\n"), (long) offset
);
6242 for (entry
= list
->first_abbrev
; entry
; entry
= entry
->next
)
6246 printf (" %ld %s [%s]\n",
6248 get_TAG_name (entry
->tag
),
6249 entry
->children
? _("has children") : _("no children"));
6251 for (attr
= entry
->first_attr
; attr
; attr
= attr
->next
)
6253 printf (" %-18s %s",
6254 get_AT_name (attr
->attribute
),
6255 get_FORM_name (attr
->form
));
6256 if (attr
->form
== DW_FORM_implicit_const
)
6257 printf (": %s", dwarf_vmatoa ("d", attr
->implicit_const
));
6269 /* Return true when ADDR is the maximum address, when addresses are
6270 POINTER_SIZE bytes long. */
6273 is_max_address (dwarf_vma addr
, unsigned int pointer_size
)
6275 dwarf_vma mask
= ~(~(dwarf_vma
) 1 << (pointer_size
* 8 - 1));
6276 return ((addr
& mask
) == mask
);
6279 /* Display a view pair list starting at *VSTART_PTR and ending at
6280 VLISTEND within SECTION. */
6283 display_view_pair_list (struct dwarf_section
*section
,
6284 unsigned char **vstart_ptr
,
6285 unsigned int debug_info_entry
,
6286 unsigned char *vlistend
)
6288 unsigned char *vstart
= *vstart_ptr
;
6289 unsigned char *section_end
= section
->start
+ section
->size
;
6290 unsigned int pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6292 if (vlistend
< section_end
)
6293 section_end
= vlistend
;
6297 while (vstart
< section_end
)
6299 dwarf_vma off
= vstart
- section
->start
;
6300 dwarf_vma vbegin
, vend
;
6302 READ_ULEB (vbegin
, vstart
, section_end
);
6303 if (vstart
== section_end
)
6306 READ_ULEB (vend
, vstart
, section_end
);
6307 printf (" %8.8lx ", (unsigned long) off
);
6309 print_dwarf_view (vbegin
, pointer_size
, 1);
6310 print_dwarf_view (vend
, pointer_size
, 1);
6311 printf (_("location view pair\n"));
6315 *vstart_ptr
= vstart
;
6318 /* Display a location list from a normal (ie, non-dwo) .debug_loc section. */
6321 display_loc_list (struct dwarf_section
*section
,
6322 unsigned char **start_ptr
,
6323 unsigned int debug_info_entry
,
6325 dwarf_vma base_address
,
6326 unsigned char **vstart_ptr
,
6329 unsigned char *start
= *start_ptr
, *vstart
= *vstart_ptr
;
6330 unsigned char *section_end
= section
->start
+ section
->size
;
6331 unsigned long cu_offset
;
6332 unsigned int pointer_size
;
6333 unsigned int offset_size
;
6338 unsigned short length
;
6339 int need_frame_base
;
6341 if (debug_info_entry
>= num_debug_info_entries
)
6343 warn (_("No debug information available for loc lists of entry: %u\n"),
6348 cu_offset
= debug_information
[debug_info_entry
].cu_offset
;
6349 pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6350 offset_size
= debug_information
[debug_info_entry
].offset_size
;
6351 dwarf_version
= debug_information
[debug_info_entry
].dwarf_version
;
6353 if (pointer_size
< 2 || pointer_size
> 8)
6355 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
6356 pointer_size
, debug_info_entry
);
6362 dwarf_vma off
= offset
+ (start
- *start_ptr
);
6363 dwarf_vma vbegin
= vm1
, vend
= vm1
;
6365 if (2 * pointer_size
> (size_t) (section_end
- start
))
6367 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6368 (unsigned long) offset
);
6372 printf (" %8.8lx ", (unsigned long) off
);
6374 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, section_end
);
6375 SAFE_BYTE_GET_AND_INC (end
, start
, pointer_size
, section_end
);
6377 if (begin
== 0 && end
== 0)
6379 /* PR 18374: In a object file we can have a location list that
6380 starts with a begin and end of 0 because there are relocations
6381 that need to be applied to the addresses. Actually applying
6382 the relocations now does not help as they will probably resolve
6383 to 0, since the object file has not been fully linked. Real
6384 end of list markers will not have any relocations against them. */
6385 if (! reloc_at (section
, off
)
6386 && ! reloc_at (section
, off
+ pointer_size
))
6388 printf (_("<End of list>\n"));
6393 /* Check base address specifiers. */
6394 if (is_max_address (begin
, pointer_size
)
6395 && !is_max_address (end
, pointer_size
))
6398 print_dwarf_vma (begin
, pointer_size
);
6399 print_dwarf_vma (end
, pointer_size
);
6400 printf (_("(base address)\n"));
6406 off
= offset
+ (vstart
- *start_ptr
);
6408 READ_ULEB (vbegin
, vstart
, section_end
);
6409 print_dwarf_view (vbegin
, pointer_size
, 1);
6411 READ_ULEB (vend
, vstart
, section_end
);
6412 print_dwarf_view (vend
, pointer_size
, 1);
6414 printf (_("views at %8.8lx for:\n %*s "),
6415 (unsigned long) off
, 8, "");
6418 if (2 > (size_t) (section_end
- start
))
6420 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6421 (unsigned long) offset
);
6425 SAFE_BYTE_GET_AND_INC (length
, start
, 2, section_end
);
6427 if (length
> (size_t) (section_end
- start
))
6429 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6430 (unsigned long) offset
);
6434 print_dwarf_vma (begin
+ base_address
, pointer_size
);
6435 print_dwarf_vma (end
+ base_address
, pointer_size
);
6438 need_frame_base
= decode_location_expression (start
,
6443 cu_offset
, section
);
6446 if (need_frame_base
&& !has_frame_base
)
6447 printf (_(" [without DW_AT_frame_base]"));
6449 if (begin
== end
&& vbegin
== vend
)
6450 fputs (_(" (start == end)"), stdout
);
6451 else if (begin
> end
|| (begin
== end
&& vbegin
> vend
))
6452 fputs (_(" (start > end)"), stdout
);
6460 *vstart_ptr
= vstart
;
6463 /* Display a location list from a normal (ie, non-dwo) .debug_loclists section. */
6466 display_loclists_list (struct dwarf_section
*section
,
6467 unsigned char **start_ptr
,
6468 unsigned int debug_info_entry
,
6470 dwarf_vma base_address
,
6471 unsigned char **vstart_ptr
,
6474 unsigned char *start
= *start_ptr
, *vstart
= *vstart_ptr
;
6475 unsigned char *section_end
= section
->start
+ section
->size
;
6476 unsigned long cu_offset
;
6477 unsigned int pointer_size
;
6478 unsigned int offset_size
;
6481 /* Initialize it due to a false compiler warning. */
6482 dwarf_vma begin
= -1, vbegin
= -1;
6483 dwarf_vma end
= -1, vend
= -1;
6485 int need_frame_base
;
6487 if (debug_info_entry
>= num_debug_info_entries
)
6489 warn (_("No debug information available for "
6490 "loclists lists of entry: %u\n"),
6495 cu_offset
= debug_information
[debug_info_entry
].cu_offset
;
6496 pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6497 offset_size
= debug_information
[debug_info_entry
].offset_size
;
6498 dwarf_version
= debug_information
[debug_info_entry
].dwarf_version
;
6500 if (pointer_size
< 2 || pointer_size
> 8)
6502 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
6503 pointer_size
, debug_info_entry
);
6509 dwarf_vma off
= offset
+ (start
- *start_ptr
);
6510 enum dwarf_location_list_entry_type llet
;
6512 if (start
+ 1 > section_end
)
6514 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6515 (unsigned long) offset
);
6519 printf (" %8.8lx ", (unsigned long) off
);
6521 SAFE_BYTE_GET_AND_INC (llet
, start
, 1, section_end
);
6523 if (vstart
&& (llet
== DW_LLE_offset_pair
6524 || llet
== DW_LLE_start_end
6525 || llet
== DW_LLE_start_length
))
6527 off
= offset
+ (vstart
- *start_ptr
);
6529 READ_ULEB (vbegin
, vstart
, section_end
);
6530 print_dwarf_view (vbegin
, pointer_size
, 1);
6532 READ_ULEB (vend
, vstart
, section_end
);
6533 print_dwarf_view (vend
, pointer_size
, 1);
6535 printf (_("views at %8.8lx for:\n %*s "),
6536 (unsigned long) off
, 8, "");
6541 case DW_LLE_end_of_list
:
6542 printf (_("<End of list>\n"));
6544 case DW_LLE_offset_pair
:
6545 READ_ULEB (begin
, start
, section_end
);
6546 begin
+= base_address
;
6547 READ_ULEB (end
, start
, section_end
);
6548 end
+= base_address
;
6550 case DW_LLE_start_end
:
6551 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, section_end
);
6552 SAFE_BYTE_GET_AND_INC (end
, start
, pointer_size
, section_end
);
6554 case DW_LLE_start_length
:
6555 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, section_end
);
6556 READ_ULEB (end
, start
, section_end
);
6559 case DW_LLE_base_address
:
6560 SAFE_BYTE_GET_AND_INC (base_address
, start
, pointer_size
,
6562 print_dwarf_vma (base_address
, pointer_size
);
6563 printf (_("(base address)\n"));
6565 #ifdef DW_LLE_view_pair
6566 case DW_LLE_view_pair
:
6568 printf (_("View pair entry in loclist with locviews attribute\n"));
6569 READ_ULEB (vbegin
, start
, section_end
);
6570 print_dwarf_view (vbegin
, pointer_size
, 1);
6572 READ_ULEB (vend
, start
, section_end
);
6573 print_dwarf_view (vend
, pointer_size
, 1);
6575 printf (_("views for:\n"));
6579 error (_("Invalid location list entry type %d\n"), llet
);
6582 if (llet
== DW_LLE_end_of_list
)
6584 if (llet
!= DW_LLE_offset_pair
6585 && llet
!= DW_LLE_start_end
6586 && llet
!= DW_LLE_start_length
)
6589 if (start
== section_end
)
6591 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6592 (unsigned long) offset
);
6595 READ_ULEB (length
, start
, section_end
);
6597 if (length
> (size_t) (section_end
- start
))
6599 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6600 (unsigned long) offset
);
6604 print_dwarf_vma (begin
, pointer_size
);
6605 print_dwarf_vma (end
, pointer_size
);
6608 need_frame_base
= decode_location_expression (start
,
6613 cu_offset
, section
);
6616 if (need_frame_base
&& !has_frame_base
)
6617 printf (_(" [without DW_AT_frame_base]"));
6619 if (begin
== end
&& vbegin
== vend
)
6620 fputs (_(" (start == end)"), stdout
);
6621 else if (begin
> end
|| (begin
== end
&& vbegin
> vend
))
6622 fputs (_(" (start > end)"), stdout
);
6630 if (vbegin
!= vm1
|| vend
!= vm1
)
6631 printf (_("Trailing view pair not used in a range"));
6634 *vstart_ptr
= vstart
;
6637 /* Print a .debug_addr table index in decimal, surrounded by square brackets,
6638 right-adjusted in a field of length LEN, and followed by a space. */
6641 print_addr_index (unsigned int idx
, unsigned int len
)
6643 static char buf
[15];
6644 snprintf (buf
, sizeof (buf
), "[%d]", idx
);
6645 printf ("%*s ", len
, buf
);
6648 /* Display a location list from a .dwo section. It uses address indexes rather
6649 than embedded addresses. This code closely follows display_loc_list, but the
6650 two are sufficiently different that combining things is very ugly. */
6653 display_loc_list_dwo (struct dwarf_section
*section
,
6654 unsigned char **start_ptr
,
6655 unsigned int debug_info_entry
,
6657 unsigned char **vstart_ptr
,
6660 unsigned char *start
= *start_ptr
, *vstart
= *vstart_ptr
;
6661 unsigned char *section_end
= section
->start
+ section
->size
;
6662 unsigned long cu_offset
;
6663 unsigned int pointer_size
;
6664 unsigned int offset_size
;
6667 unsigned short length
;
6668 int need_frame_base
;
6671 if (debug_info_entry
>= num_debug_info_entries
)
6673 warn (_("No debug information for loc lists of entry: %u\n"),
6678 cu_offset
= debug_information
[debug_info_entry
].cu_offset
;
6679 pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6680 offset_size
= debug_information
[debug_info_entry
].offset_size
;
6681 dwarf_version
= debug_information
[debug_info_entry
].dwarf_version
;
6683 if (pointer_size
< 2 || pointer_size
> 8)
6685 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
6686 pointer_size
, debug_info_entry
);
6692 printf (" %8.8lx ", (unsigned long) (offset
+ (start
- *start_ptr
)));
6694 if (start
>= section_end
)
6696 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6697 (unsigned long) offset
);
6701 SAFE_BYTE_GET_AND_INC (entry_type
, start
, 1, section_end
);
6714 dwarf_vma off
= offset
+ (vstart
- *start_ptr
);
6716 READ_ULEB (view
, vstart
, section_end
);
6717 print_dwarf_view (view
, 8, 1);
6719 READ_ULEB (view
, vstart
, section_end
);
6720 print_dwarf_view (view
, 8, 1);
6722 printf (_("views at %8.8lx for:\n %*s "),
6723 (unsigned long) off
, 8, "");
6731 case 0: /* A terminating entry. */
6733 *vstart_ptr
= vstart
;
6734 printf (_("<End of list>\n"));
6736 case 1: /* A base-address entry. */
6737 READ_ULEB (idx
, start
, section_end
);
6738 print_addr_index (idx
, 8);
6739 printf ("%*s", 9 + (vstart
? 2 * 6 : 0), "");
6740 printf (_("(base address selection entry)\n"));
6742 case 2: /* A start/end entry. */
6743 READ_ULEB (idx
, start
, section_end
);
6744 print_addr_index (idx
, 8);
6745 READ_ULEB (idx
, start
, section_end
);
6746 print_addr_index (idx
, 8);
6748 case 3: /* A start/length entry. */
6749 READ_ULEB (idx
, start
, section_end
);
6750 print_addr_index (idx
, 8);
6751 SAFE_BYTE_GET_AND_INC (idx
, start
, 4, section_end
);
6752 printf ("%08x ", idx
);
6754 case 4: /* An offset pair entry. */
6755 SAFE_BYTE_GET_AND_INC (idx
, start
, 4, section_end
);
6756 printf ("%08x ", idx
);
6757 SAFE_BYTE_GET_AND_INC (idx
, start
, 4, section_end
);
6758 printf ("%08x ", idx
);
6761 warn (_("Unknown location list entry type 0x%x.\n"), entry_type
);
6763 *vstart_ptr
= vstart
;
6767 if (2 > (size_t) (section_end
- start
))
6769 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6770 (unsigned long) offset
);
6774 SAFE_BYTE_GET_AND_INC (length
, start
, 2, section_end
);
6775 if (length
> (size_t) (section_end
- start
))
6777 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6778 (unsigned long) offset
);
6783 need_frame_base
= decode_location_expression (start
,
6788 cu_offset
, section
);
6791 if (need_frame_base
&& !has_frame_base
)
6792 printf (_(" [without DW_AT_frame_base]"));
6800 *vstart_ptr
= vstart
;
6803 /* Sort array of indexes in ascending order of loc_offsets[idx] and
6806 static dwarf_vma
*loc_offsets
, *loc_views
;
6809 loc_offsets_compar (const void *ap
, const void *bp
)
6811 dwarf_vma a
= loc_offsets
[*(const unsigned int *) ap
];
6812 dwarf_vma b
= loc_offsets
[*(const unsigned int *) bp
];
6814 int ret
= (a
> b
) - (b
> a
);
6818 a
= loc_views
[*(const unsigned int *) ap
];
6819 b
= loc_views
[*(const unsigned int *) bp
];
6821 ret
= (a
> b
) - (b
> a
);
6827 display_debug_loc (struct dwarf_section
*section
, void *file
)
6829 unsigned char *start
= section
->start
, *vstart
= NULL
;
6830 unsigned long bytes
;
6831 unsigned char *section_begin
= start
;
6832 unsigned int num_loc_list
= 0;
6833 unsigned long last_offset
= 0;
6834 unsigned long last_view
= 0;
6835 unsigned int first
= 0;
6838 int seen_first_offset
= 0;
6839 int locs_sorted
= 1;
6840 unsigned char *next
= start
, *vnext
= vstart
;
6841 unsigned int *array
= NULL
;
6842 const char *suffix
= strrchr (section
->name
, '.');
6843 bool is_dwo
= false;
6844 int is_loclists
= strstr (section
->name
, "debug_loclists") != NULL
;
6845 dwarf_vma expected_start
= 0;
6847 if (suffix
&& strcmp (suffix
, ".dwo") == 0)
6850 bytes
= section
->size
;
6854 printf (_("\nThe %s section is empty.\n"), section
->name
);
6860 unsigned char *hdrptr
= section_begin
;
6861 dwarf_vma ll_length
;
6862 unsigned short ll_version
;
6863 unsigned char *end
= section_begin
+ section
->size
;
6864 unsigned char address_size
, segment_selector_size
;
6865 uint32_t offset_entry_count
;
6867 SAFE_BYTE_GET_AND_INC (ll_length
, hdrptr
, 4, end
);
6868 if (ll_length
== 0xffffffff)
6869 SAFE_BYTE_GET_AND_INC (ll_length
, hdrptr
, 8, end
);
6871 SAFE_BYTE_GET_AND_INC (ll_version
, hdrptr
, 2, end
);
6872 if (ll_version
!= 5)
6874 warn (_("The %s section contains corrupt or "
6875 "unsupported version number: %d.\n"),
6876 section
->name
, ll_version
);
6880 SAFE_BYTE_GET_AND_INC (address_size
, hdrptr
, 1, end
);
6882 SAFE_BYTE_GET_AND_INC (segment_selector_size
, hdrptr
, 1, end
);
6883 if (segment_selector_size
!= 0)
6885 warn (_("The %s section contains "
6886 "unsupported segment selector size: %d.\n"),
6887 section
->name
, segment_selector_size
);
6891 SAFE_BYTE_GET_AND_INC (offset_entry_count
, hdrptr
, 4, end
);
6892 if (offset_entry_count
!= 0)
6894 warn (_("The %s section contains "
6895 "unsupported offset entry count: %d.\n"),
6896 section
->name
, offset_entry_count
);
6900 expected_start
= hdrptr
- section_begin
;
6903 if (load_debug_info (file
) == 0)
6905 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
6910 /* Check the order of location list in .debug_info section. If
6911 offsets of location lists are in the ascending order, we can
6912 use `debug_information' directly. */
6913 for (i
= 0; i
< num_debug_info_entries
; i
++)
6917 num
= debug_information
[i
].num_loc_offsets
;
6918 if (num
> num_loc_list
)
6921 /* Check if we can use `debug_information' directly. */
6922 if (locs_sorted
&& num
!= 0)
6924 if (!seen_first_offset
)
6926 /* This is the first location list. */
6927 last_offset
= debug_information
[i
].loc_offsets
[0];
6928 last_view
= debug_information
[i
].loc_views
[0];
6930 seen_first_offset
= 1;
6936 for (; j
< num
; j
++)
6939 debug_information
[i
].loc_offsets
[j
]
6940 || (last_offset
== debug_information
[i
].loc_offsets
[j
]
6941 && last_view
> debug_information
[i
].loc_views
[j
]))
6946 last_offset
= debug_information
[i
].loc_offsets
[j
];
6947 last_view
= debug_information
[i
].loc_views
[j
];
6952 if (!seen_first_offset
)
6953 error (_("No location lists in .debug_info section!\n"));
6955 if (debug_information
[first
].num_loc_offsets
> 0
6956 && debug_information
[first
].loc_offsets
[0] != expected_start
6957 && debug_information
[first
].loc_views
[0] != expected_start
)
6958 warn (_("Location lists in %s section start at 0x%s\n"),
6960 dwarf_vmatoa ("x", debug_information
[first
].loc_offsets
[0]));
6963 array
= (unsigned int *) xcmalloc (num_loc_list
, sizeof (unsigned int));
6965 introduce (section
, false);
6967 if (reloc_at (section
, 0))
6968 printf (_(" Warning: This section has relocations - addresses seen here may not be accurate.\n\n"));
6970 printf (_(" Offset Begin End Expression\n"));
6972 seen_first_offset
= 0;
6973 for (i
= first
; i
< num_debug_info_entries
; i
++)
6975 dwarf_vma offset
, voffset
;
6976 dwarf_vma base_address
;
6982 for (k
= 0; k
< debug_information
[i
].num_loc_offsets
; k
++)
6984 loc_offsets
= debug_information
[i
].loc_offsets
;
6985 loc_views
= debug_information
[i
].loc_views
;
6986 qsort (array
, debug_information
[i
].num_loc_offsets
,
6987 sizeof (*array
), loc_offsets_compar
);
6990 int adjacent_view_loclists
= 1;
6991 for (k
= 0; k
< debug_information
[i
].num_loc_offsets
; k
++)
6993 j
= locs_sorted
? k
: array
[k
];
6995 && (debug_information
[i
].loc_offsets
[locs_sorted
6996 ? k
- 1 : array
[k
- 1]]
6997 == debug_information
[i
].loc_offsets
[j
])
6998 && (debug_information
[i
].loc_views
[locs_sorted
6999 ? k
- 1 : array
[k
- 1]]
7000 == debug_information
[i
].loc_views
[j
]))
7002 has_frame_base
= debug_information
[i
].have_frame_base
[j
];
7003 offset
= debug_information
[i
].loc_offsets
[j
];
7004 next
= section_begin
+ offset
;
7005 voffset
= debug_information
[i
].loc_views
[j
];
7007 vnext
= section_begin
+ voffset
;
7010 base_address
= debug_information
[i
].base_address
;
7012 if (vnext
&& vnext
< next
)
7015 display_view_pair_list (section
, &vstart
, i
, next
);
7020 if (!seen_first_offset
|| !adjacent_view_loclists
)
7021 seen_first_offset
= 1;
7025 warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
7026 (unsigned long) (start
- section_begin
),
7027 (unsigned long) offset
,
7029 else if (start
> next
)
7030 warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
7031 (unsigned long) (start
- section_begin
),
7032 (unsigned long) offset
,
7038 if (offset
>= bytes
)
7040 warn (_("Offset 0x%lx is bigger than %s section size.\n"),
7041 (unsigned long) offset
,
7046 if (vnext
&& voffset
>= bytes
)
7048 warn (_("View Offset 0x%lx is bigger than %s section size.\n"),
7049 (unsigned long) voffset
,
7057 display_loc_list_dwo (section
, &start
, i
, offset
,
7058 &vstart
, has_frame_base
);
7060 display_loc_list (section
, &start
, i
, offset
, base_address
,
7061 &vstart
, has_frame_base
);
7066 warn (_("DWO is not yet supported.\n"));
7068 display_loclists_list (section
, &start
, i
, offset
, base_address
,
7069 &vstart
, has_frame_base
);
7072 /* FIXME: this arrangement is quite simplistic. Nothing
7073 requires locview lists to be adjacent to corresponding
7074 loclists, and a single loclist could be augmented by
7075 different locview lists, and vice-versa, unlikely as it
7076 is that it would make sense to do so. Hopefully we'll
7077 have view pair support built into loclists before we ever
7078 need to address all these possibilities. */
7079 if (adjacent_view_loclists
&& vnext
7080 && vnext
!= start
&& vstart
!= next
)
7082 adjacent_view_loclists
= 0;
7083 warn (_("Hole and overlap detection requires adjacent view lists and loclists.\n"));
7086 if (vnext
&& vnext
== start
)
7087 display_view_pair_list (section
, &start
, i
, vstart
);
7091 if (start
< section
->start
+ section
->size
)
7092 warn (ngettext ("There is %ld unused byte at the end of section %s\n",
7093 "There are %ld unused bytes at the end of section %s\n",
7094 (long) (section
->start
+ section
->size
- start
)),
7095 (long) (section
->start
+ section
->size
- start
), section
->name
);
7102 display_debug_str (struct dwarf_section
*section
,
7103 void *file ATTRIBUTE_UNUSED
)
7105 unsigned char *start
= section
->start
;
7106 unsigned long bytes
= section
->size
;
7107 dwarf_vma addr
= section
->address
;
7111 printf (_("\nThe %s section is empty.\n"), section
->name
);
7115 introduce (section
, false);
7123 lbytes
= (bytes
> 16 ? 16 : bytes
);
7125 printf (" 0x%8.8lx ", (unsigned long) addr
);
7127 for (j
= 0; j
< 16; j
++)
7130 printf ("%2.2x", start
[j
]);
7138 for (j
= 0; j
< lbytes
; j
++)
7141 if (k
>= ' ' && k
< 0x80)
7160 display_debug_info (struct dwarf_section
*section
, void *file
)
7162 return process_debug_info (section
, file
, section
->abbrev_sec
, false, false);
7166 display_debug_types (struct dwarf_section
*section
, void *file
)
7168 return process_debug_info (section
, file
, section
->abbrev_sec
, false, true);
7172 display_trace_info (struct dwarf_section
*section
, void *file
)
7174 return process_debug_info (section
, file
, section
->abbrev_sec
, false, true);
7178 display_debug_aranges (struct dwarf_section
*section
,
7179 void *file ATTRIBUTE_UNUSED
)
7181 unsigned char *start
= section
->start
;
7182 unsigned char *end
= start
+ section
->size
;
7184 introduce (section
, false);
7186 /* It does not matter if this load fails,
7187 we test for that later on. */
7188 load_debug_info (file
);
7192 unsigned char *hdrptr
;
7193 DWARF2_Internal_ARange arange
;
7194 unsigned char *addr_ranges
;
7197 unsigned long sec_off
;
7198 unsigned char address_size
;
7199 unsigned int offset_size
;
7200 unsigned char *end_ranges
;
7203 sec_off
= hdrptr
- section
->start
;
7205 SAFE_BYTE_GET_AND_INC (arange
.ar_length
, hdrptr
, 4, end
);
7206 if (arange
.ar_length
== 0xffffffff)
7208 SAFE_BYTE_GET_AND_INC (arange
.ar_length
, hdrptr
, 8, end
);
7214 if (arange
.ar_length
> (size_t) (end
- hdrptr
))
7216 warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
7219 dwarf_vmatoa ("x", arange
.ar_length
));
7222 end_ranges
= hdrptr
+ arange
.ar_length
;
7224 SAFE_BYTE_GET_AND_INC (arange
.ar_version
, hdrptr
, 2, end_ranges
);
7225 SAFE_BYTE_GET_AND_INC (arange
.ar_info_offset
, hdrptr
, offset_size
,
7228 if (num_debug_info_entries
!= DEBUG_INFO_UNAVAILABLE
7229 && num_debug_info_entries
> 0
7230 && find_debug_info_for_offset (arange
.ar_info_offset
) == NULL
)
7231 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
7232 (unsigned long) arange
.ar_info_offset
, section
->name
);
7234 SAFE_BYTE_GET_AND_INC (arange
.ar_pointer_size
, hdrptr
, 1, end_ranges
);
7235 SAFE_BYTE_GET_AND_INC (arange
.ar_segment_size
, hdrptr
, 1, end_ranges
);
7237 if (arange
.ar_version
!= 2 && arange
.ar_version
!= 3)
7239 /* PR 19872: A version number of 0 probably means that there is
7240 padding at the end of the .debug_aranges section. Gold puts
7241 it there when performing an incremental link, for example.
7242 So do not generate a warning in this case. */
7243 if (arange
.ar_version
)
7244 warn (_("Only DWARF 2 and 3 aranges are currently supported.\n"));
7248 printf (_(" Length: %ld\n"),
7249 (long) arange
.ar_length
);
7250 printf (_(" Version: %d\n"), arange
.ar_version
);
7251 printf (_(" Offset into .debug_info: 0x%lx\n"),
7252 (unsigned long) arange
.ar_info_offset
);
7253 printf (_(" Pointer Size: %d\n"), arange
.ar_pointer_size
);
7254 printf (_(" Segment Size: %d\n"), arange
.ar_segment_size
);
7256 address_size
= arange
.ar_pointer_size
+ arange
.ar_segment_size
;
7258 /* PR 17512: file: 001-108546-0.001:0.1. */
7259 if (address_size
== 0 || address_size
> 8)
7261 error (_("Invalid address size in %s section!\n"),
7266 /* The DWARF spec does not require that the address size be a power
7267 of two, but we do. This will have to change if we ever encounter
7268 an uneven architecture. */
7269 if ((address_size
& (address_size
- 1)) != 0)
7271 warn (_("Pointer size + Segment size is not a power of two.\n"));
7275 if (address_size
> 4)
7276 printf (_("\n Address Length\n"));
7278 printf (_("\n Address Length\n"));
7280 addr_ranges
= hdrptr
;
7282 /* Must pad to an alignment boundary that is twice the address size. */
7283 addr_ranges
+= (2 * address_size
- 1
7284 - (hdrptr
- start
- 1) % (2 * address_size
));
7286 while (2 * address_size
<= end_ranges
- addr_ranges
)
7288 SAFE_BYTE_GET_AND_INC (address
, addr_ranges
, address_size
,
7290 SAFE_BYTE_GET_AND_INC (length
, addr_ranges
, address_size
,
7293 print_dwarf_vma (address
, address_size
);
7294 print_dwarf_vma (length
, address_size
);
7306 /* Comparison function for qsort. */
7308 comp_addr_base (const void * v0
, const void * v1
)
7310 debug_info
*info0
= *(debug_info
**) v0
;
7311 debug_info
*info1
= *(debug_info
**) v1
;
7312 return info0
->addr_base
- info1
->addr_base
;
7315 /* Display the debug_addr section. */
7317 display_debug_addr (struct dwarf_section
*section
,
7320 debug_info
**debug_addr_info
;
7321 unsigned char *entry
;
7325 unsigned char * header
;
7327 if (section
->size
== 0)
7329 printf (_("\nThe %s section is empty.\n"), section
->name
);
7333 if (load_debug_info (file
) == 0)
7335 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
7340 introduce (section
, false);
7342 /* PR 17531: file: cf38d01b.
7343 We use xcalloc because a corrupt file may not have initialised all of the
7344 fields in the debug_info structure, which means that the sort below might
7345 try to move uninitialised data. */
7346 debug_addr_info
= (debug_info
**) xcalloc ((num_debug_info_entries
+ 1),
7347 sizeof (debug_info
*));
7350 for (i
= 0; i
< num_debug_info_entries
; i
++)
7351 if (debug_information
[i
].addr_base
!= DEBUG_INFO_UNAVAILABLE
)
7353 /* PR 17531: file: cf38d01b. */
7354 if (debug_information
[i
].addr_base
>= section
->size
)
7355 warn (_("Corrupt address base (%lx) found in debug section %u\n"),
7356 (unsigned long) debug_information
[i
].addr_base
, i
);
7358 debug_addr_info
[count
++] = debug_information
+ i
;
7361 /* Add a sentinel to make iteration convenient. */
7362 debug_addr_info
[count
] = (debug_info
*) xmalloc (sizeof (debug_info
));
7363 debug_addr_info
[count
]->addr_base
= section
->size
;
7364 qsort (debug_addr_info
, count
, sizeof (debug_info
*), comp_addr_base
);
7366 header
= section
->start
;
7367 for (i
= 0; i
< count
; i
++)
7370 unsigned int address_size
= debug_addr_info
[i
]->pointer_size
;
7372 printf (_(" For compilation unit at offset 0x%s:\n"),
7373 dwarf_vmatoa ("x", debug_addr_info
[i
]->cu_offset
));
7375 printf (_("\tIndex\tAddress\n"));
7376 entry
= section
->start
+ debug_addr_info
[i
]->addr_base
;
7377 if (debug_addr_info
[i
]->dwarf_version
>= 5)
7379 size_t header_size
= entry
- header
;
7380 unsigned char * curr_header
= header
;
7383 int segment_selector_size
;
7385 if (header_size
!= 8 && header_size
!= 16)
7387 warn (_("Corrupt %s section: expecting header size of 8 or 16, but found %ld instead\n"),
7388 section
->name
, (long) header_size
);
7392 SAFE_BYTE_GET_AND_INC (length
, curr_header
, 4, entry
);
7393 if (length
== 0xffffffff)
7394 SAFE_BYTE_GET_AND_INC (length
, curr_header
, 8, entry
);
7395 end
= curr_header
+ length
;
7397 SAFE_BYTE_GET_AND_INC (version
, curr_header
, 2, entry
);
7399 warn (_("Corrupt %s section: expecting version number 5 in header but found %d instead\n"),
7400 section
->name
, version
);
7402 SAFE_BYTE_GET_AND_INC (address_size
, curr_header
, 1, entry
);
7403 SAFE_BYTE_GET_AND_INC (segment_selector_size
, curr_header
, 1, entry
);
7404 address_size
+= segment_selector_size
;
7407 end
= section
->start
+ debug_addr_info
[i
+ 1]->addr_base
;
7412 dwarf_vma base
= byte_get (entry
, address_size
);
7413 printf (_("\t%d:\t"), idx
);
7414 print_dwarf_vma (base
, address_size
);
7416 entry
+= address_size
;
7422 free (debug_addr_info
);
7426 /* Display the .debug_str_offsets and .debug_str_offsets.dwo sections. */
7429 display_debug_str_offsets (struct dwarf_section
*section
,
7430 void *file ATTRIBUTE_UNUSED
)
7434 if (section
->size
== 0)
7436 printf (_("\nThe %s section is empty.\n"), section
->name
);
7440 unsigned char *start
= section
->start
;
7441 unsigned char *end
= start
+ section
->size
;
7442 unsigned char *curr
= start
;
7444 const char *suffix
= strrchr (section
->name
, '.');
7445 bool dwo
= suffix
&& strcmp (suffix
, ".dwo") == 0;
7448 load_debug_section_with_follow (str_dwo
, file
);
7450 load_debug_section_with_follow (str
, file
);
7452 introduce (section
, false);
7457 dwarf_vma entry_length
;
7459 SAFE_BYTE_GET_AND_INC (length
, curr
, 4, end
);
7460 /* FIXME: We assume that this means 64-bit DWARF is being used. */
7461 if (length
== 0xffffffff)
7463 SAFE_BYTE_GET_AND_INC (length
, curr
, 8, end
);
7469 unsigned char *entries_end
;
7472 /* This is probably an old style .debug_str_offset section which
7473 just contains offsets and no header (and the first offset is 0). */
7474 length
= section
->size
;
7475 curr
= section
->start
;
7478 printf (_(" Length: %#lx\n"), (unsigned long) length
);
7479 printf (_(" Index Offset [String]\n"));
7483 if (length
<= (dwarf_vma
) (end
- curr
))
7484 entries_end
= curr
+ length
;
7487 warn (_("Section %s is too small %#lx\n"),
7488 section
->name
, (unsigned long) section
->size
);
7493 SAFE_BYTE_GET_AND_INC (version
, curr
, 2, entries_end
);
7495 warn (_("Unexpected version number in str_offset header: %#x\n"), version
);
7498 SAFE_BYTE_GET_AND_INC (padding
, curr
, 2, entries_end
);
7500 warn (_("Unexpected value in str_offset header's padding field: %#x\n"), padding
);
7502 printf (_(" Length: %#lx\n"), (unsigned long) length
);
7503 printf (_(" Version: %#lx\n"), (unsigned long) version
);
7504 printf (_(" Index Offset [String]\n"));
7507 for (idx
= 0; curr
< entries_end
; idx
++)
7510 const unsigned char * string
;
7512 if ((dwarf_vma
) (entries_end
- curr
) < entry_length
)
7513 /* Not enough space to read one entry_length, give up. */
7516 SAFE_BYTE_GET_AND_INC (offset
, curr
, entry_length
, entries_end
);
7518 string
= (const unsigned char *)
7519 fetch_indexed_string (idx
, NULL
, entry_length
, dwo
);
7521 string
= fetch_indirect_string (offset
);
7523 printf (" %8lu %8s %s\n", idx
, dwarf_vmatoa ("x", offset
),
7531 /* Each debug_information[x].range_lists[y] gets this representation for
7532 sorting purposes. */
7536 /* The debug_information[x].range_lists[y] value. */
7537 dwarf_vma ranges_offset
;
7539 /* Original debug_information to find parameters of the data. */
7540 debug_info
*debug_info_p
;
7543 /* Sort struct range_entry in ascending order of its RANGES_OFFSET. */
7546 range_entry_compar (const void *ap
, const void *bp
)
7548 const struct range_entry
*a_re
= (const struct range_entry
*) ap
;
7549 const struct range_entry
*b_re
= (const struct range_entry
*) bp
;
7550 const dwarf_vma a
= a_re
->ranges_offset
;
7551 const dwarf_vma b
= b_re
->ranges_offset
;
7553 return (a
> b
) - (b
> a
);
7557 display_debug_ranges_list (unsigned char *start
, unsigned char *finish
,
7558 unsigned int pointer_size
, unsigned long offset
,
7559 unsigned long base_address
)
7561 while (start
< finish
)
7566 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, finish
);
7567 if (start
>= finish
)
7569 SAFE_SIGNED_BYTE_GET_AND_INC (end
, start
, pointer_size
, finish
);
7571 printf (" %8.8lx ", offset
);
7573 if (begin
== 0 && end
== 0)
7575 printf (_("<End of list>\n"));
7579 /* Check base address specifiers. */
7580 if (is_max_address (begin
, pointer_size
)
7581 && !is_max_address (end
, pointer_size
))
7584 print_dwarf_vma (begin
, pointer_size
);
7585 print_dwarf_vma (end
, pointer_size
);
7586 printf ("(base address)\n");
7590 print_dwarf_vma (begin
+ base_address
, pointer_size
);
7591 print_dwarf_vma (end
+ base_address
, pointer_size
);
7594 fputs (_("(start == end)"), stdout
);
7595 else if (begin
> end
)
7596 fputs (_("(start > end)"), stdout
);
7603 display_debug_rnglists_list (unsigned char *start
, unsigned char *finish
,
7604 unsigned int pointer_size
, unsigned long offset
,
7605 unsigned long base_address
)
7607 unsigned char *next
= start
;
7611 unsigned long off
= offset
+ (start
- next
);
7612 enum dwarf_range_list_entry rlet
;
7613 /* Initialize it due to a false compiler warning. */
7614 dwarf_vma begin
= -1, length
, end
= -1;
7616 if (start
>= finish
)
7618 warn (_("Range list starting at offset 0x%lx is not terminated.\n"),
7623 printf (" %8.8lx ", off
);
7625 SAFE_BYTE_GET_AND_INC (rlet
, start
, 1, finish
);
7629 case DW_RLE_end_of_list
:
7630 printf (_("<End of list>\n"));
7632 case DW_RLE_base_address
:
7633 SAFE_BYTE_GET_AND_INC (base_address
, start
, pointer_size
, finish
);
7634 print_dwarf_vma (base_address
, pointer_size
);
7635 printf (_("(base address)\n"));
7637 case DW_RLE_start_length
:
7638 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, finish
);
7639 READ_ULEB (length
, start
, finish
);
7640 end
= begin
+ length
;
7642 case DW_RLE_offset_pair
:
7643 READ_ULEB (begin
, start
, finish
);
7644 READ_ULEB (end
, start
, finish
);
7646 case DW_RLE_start_end
:
7647 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, finish
);
7648 SAFE_BYTE_GET_AND_INC (end
, start
, pointer_size
, finish
);
7651 error (_("Invalid range list entry type %d\n"), rlet
);
7652 rlet
= DW_RLE_end_of_list
;
7655 if (rlet
== DW_RLE_end_of_list
)
7657 if (rlet
== DW_RLE_base_address
)
7660 /* Only a DW_RLE_offset_pair needs the base address added. */
7661 if (rlet
== DW_RLE_offset_pair
)
7663 begin
+= base_address
;
7664 end
+= base_address
;
7667 print_dwarf_vma (begin
, pointer_size
);
7668 print_dwarf_vma (end
, pointer_size
);
7671 fputs (_("(start == end)"), stdout
);
7672 else if (begin
> end
)
7673 fputs (_("(start > end)"), stdout
);
7680 display_debug_ranges (struct dwarf_section
*section
,
7681 void *file ATTRIBUTE_UNUSED
)
7683 unsigned char *start
= section
->start
;
7684 unsigned char *last_start
= start
;
7685 unsigned long bytes
= section
->size
;
7686 unsigned char *section_begin
= start
;
7687 unsigned char *finish
= start
+ bytes
;
7688 unsigned int num_range_list
, i
;
7689 struct range_entry
*range_entries
, *range_entry_fill
;
7690 int is_rnglists
= strstr (section
->name
, "debug_rnglists") != NULL
;
7691 /* Initialize it due to a false compiler warning. */
7692 unsigned char address_size
= 0;
7693 dwarf_vma last_offset
= 0;
7697 printf (_("\nThe %s section is empty.\n"), section
->name
);
7703 dwarf_vma initial_length
;
7704 unsigned char segment_selector_size
;
7705 unsigned int offset_size
, offset_entry_count
;
7706 unsigned short version
;
7708 /* Get and check the length of the block. */
7709 SAFE_BYTE_GET_AND_INC (initial_length
, start
, 4, finish
);
7711 if (initial_length
== 0xffffffff)
7713 /* This section is 64-bit DWARF 3. */
7714 SAFE_BYTE_GET_AND_INC (initial_length
, start
, 8, finish
);
7720 if (initial_length
> (size_t) (finish
- start
))
7722 /* If the length field has a relocation against it, then we should
7723 not complain if it is inaccurate (and probably negative).
7724 It is copied from .debug_line handling code. */
7725 if (reloc_at (section
, (start
- section
->start
) - offset_size
))
7727 initial_length
= finish
- start
;
7731 warn (_("The length field (0x%lx) in the debug_rnglists header is wrong - the section is too small\n"),
7732 (long) initial_length
);
7737 /* Get and check the version number. */
7738 SAFE_BYTE_GET_AND_INC (version
, start
, 2, finish
);
7742 warn (_("Only DWARF version 5 debug_rnglists info "
7743 "is currently supported.\n"));
7747 SAFE_BYTE_GET_AND_INC (address_size
, start
, 1, finish
);
7749 SAFE_BYTE_GET_AND_INC (segment_selector_size
, start
, 1, finish
);
7750 if (segment_selector_size
!= 0)
7752 warn (_("The %s section contains "
7753 "unsupported segment selector size: %d.\n"),
7754 section
->name
, segment_selector_size
);
7758 SAFE_BYTE_GET_AND_INC (offset_entry_count
, start
, 4, finish
);
7759 if (offset_entry_count
!= 0)
7761 warn (_("The %s section contains "
7762 "unsupported offset entry count: %u.\n"),
7763 section
->name
, offset_entry_count
);
7768 if (load_debug_info (file
) == 0)
7770 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
7776 for (i
= 0; i
< num_debug_info_entries
; i
++)
7778 if (debug_information
[i
].dwarf_version
< 5 && is_rnglists
)
7779 /* Skip .debug_rnglists reference. */
7781 if (debug_information
[i
].dwarf_version
>= 5 && !is_rnglists
)
7782 /* Skip .debug_range reference. */
7784 num_range_list
+= debug_information
[i
].num_range_lists
;
7787 if (num_range_list
== 0)
7789 /* This can happen when the file was compiled with -gsplit-debug
7790 which removes references to range lists from the primary .o file. */
7791 printf (_("No range lists in .debug_info section.\n"));
7795 range_entries
= (struct range_entry
*)
7796 xmalloc (sizeof (*range_entries
) * num_range_list
);
7797 range_entry_fill
= range_entries
;
7799 for (i
= 0; i
< num_debug_info_entries
; i
++)
7801 debug_info
*debug_info_p
= &debug_information
[i
];
7804 if (debug_information
[i
].dwarf_version
< 5 && is_rnglists
)
7805 /* Skip .debug_rnglists reference. */
7807 if (debug_information
[i
].dwarf_version
>= 5 && !is_rnglists
)
7808 /* Skip .debug_range reference. */
7811 for (j
= 0; j
< debug_info_p
->num_range_lists
; j
++)
7813 range_entry_fill
->ranges_offset
= debug_info_p
->range_lists
[j
];
7814 range_entry_fill
->debug_info_p
= debug_info_p
;
7819 qsort (range_entries
, num_range_list
, sizeof (*range_entries
),
7820 range_entry_compar
);
7822 if (dwarf_check
!= 0 && range_entries
[0].ranges_offset
!= 0)
7823 warn (_("Range lists in %s section start at 0x%lx\n"),
7824 section
->name
, (unsigned long) range_entries
[0].ranges_offset
);
7826 introduce (section
, false);
7828 printf (_(" Offset Begin End\n"));
7830 for (i
= 0; i
< num_range_list
; i
++)
7832 struct range_entry
*range_entry
= &range_entries
[i
];
7833 debug_info
*debug_info_p
= range_entry
->debug_info_p
;
7834 unsigned int pointer_size
;
7836 unsigned char *next
;
7837 dwarf_vma base_address
;
7839 pointer_size
= (is_rnglists
? address_size
: debug_info_p
->pointer_size
);
7840 offset
= range_entry
->ranges_offset
;
7841 base_address
= debug_info_p
->base_address
;
7843 /* PR 17512: file: 001-101485-0.001:0.1. */
7844 if (pointer_size
< 2 || pointer_size
> 8)
7846 warn (_("Corrupt pointer size (%d) in debug entry at offset %8.8lx\n"),
7847 pointer_size
, (unsigned long) offset
);
7851 if (offset
> (size_t) (finish
- section_begin
))
7853 warn (_("Corrupt offset (%#8.8lx) in range entry %u\n"),
7854 (unsigned long) offset
, i
);
7857 next
= section_begin
+ offset
;
7859 /* If multiple DWARF entities reference the same range then we will
7860 have multiple entries in the `range_entries' list for the same
7861 offset. Thanks to the sort above these will all be consecutive in
7862 the `range_entries' list, so we can easily ignore duplicates
7864 if (i
> 0 && last_offset
== offset
)
7866 last_offset
= offset
;
7868 if (dwarf_check
!= 0 && i
> 0)
7871 warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
7872 (unsigned long) (start
- section_begin
),
7873 (unsigned long) (next
- section_begin
), section
->name
);
7874 else if (start
> next
)
7876 if (next
== last_start
)
7878 warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
7879 (unsigned long) (start
- section_begin
),
7880 (unsigned long) (next
- section_begin
), section
->name
);
7887 (is_rnglists
? display_debug_rnglists_list
: display_debug_ranges_list
)
7888 (start
, finish
, pointer_size
, offset
, base_address
);
7892 free (range_entries
);
7897 typedef struct Frame_Chunk
7899 struct Frame_Chunk
*next
;
7900 unsigned char *chunk_start
;
7902 /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */
7903 short int *col_type
;
7906 unsigned int code_factor
;
7910 unsigned int cfa_reg
;
7911 dwarf_vma cfa_offset
;
7913 unsigned char fde_encoding
;
7914 unsigned char cfa_exp
;
7915 unsigned char ptr_size
;
7916 unsigned char segment_size
;
7920 typedef const char *(*dwarf_regname_lookup_ftype
) (unsigned int);
7921 static dwarf_regname_lookup_ftype dwarf_regnames_lookup_func
;
7922 static const char *const *dwarf_regnames
;
7923 static unsigned int dwarf_regnames_count
;
7926 /* A marker for a col_type that means this column was never referenced
7927 in the frame info. */
7928 #define DW_CFA_unreferenced (-1)
7930 /* Return 0 if no more space is needed, 1 if more space is needed,
7931 -1 for invalid reg. */
7934 frame_need_space (Frame_Chunk
*fc
, unsigned int reg
)
7936 unsigned int prev
= fc
->ncols
;
7938 if (reg
< (unsigned int) fc
->ncols
)
7941 if (dwarf_regnames_count
> 0
7942 && reg
> dwarf_regnames_count
)
7945 fc
->ncols
= reg
+ 1;
7946 /* PR 17512: file: 10450-2643-0.004.
7947 If reg == -1 then this can happen... */
7951 /* PR 17512: file: 2844a11d. */
7952 if (fc
->ncols
> 1024 && dwarf_regnames_count
== 0)
7954 error (_("Unfeasibly large register number: %u\n"), reg
);
7956 /* FIXME: 1024 is an arbitrary limit. Increase it if
7957 we ever encounter a valid binary that exceeds it. */
7961 fc
->col_type
= (short int *) xcrealloc (fc
->col_type
, fc
->ncols
,
7962 sizeof (short int));
7963 fc
->col_offset
= (int *) xcrealloc (fc
->col_offset
, fc
->ncols
, sizeof (int));
7964 /* PR 17512: file:002-10025-0.005. */
7965 if (fc
->col_type
== NULL
|| fc
->col_offset
== NULL
)
7967 error (_("Out of memory allocating %u columns in dwarf frame arrays\n"),
7973 while (prev
< fc
->ncols
)
7975 fc
->col_type
[prev
] = DW_CFA_unreferenced
;
7976 fc
->col_offset
[prev
] = 0;
7982 static const char *const dwarf_regnames_i386
[] =
7984 "eax", "ecx", "edx", "ebx", /* 0 - 3 */
7985 "esp", "ebp", "esi", "edi", /* 4 - 7 */
7986 "eip", "eflags", NULL
, /* 8 - 10 */
7987 "st0", "st1", "st2", "st3", /* 11 - 14 */
7988 "st4", "st5", "st6", "st7", /* 15 - 18 */
7989 NULL
, NULL
, /* 19 - 20 */
7990 "xmm0", "xmm1", "xmm2", "xmm3", /* 21 - 24 */
7991 "xmm4", "xmm5", "xmm6", "xmm7", /* 25 - 28 */
7992 "mm0", "mm1", "mm2", "mm3", /* 29 - 32 */
7993 "mm4", "mm5", "mm6", "mm7", /* 33 - 36 */
7994 "fcw", "fsw", "mxcsr", /* 37 - 39 */
7995 "es", "cs", "ss", "ds", "fs", "gs", NULL
, NULL
, /* 40 - 47 */
7996 "tr", "ldtr", /* 48 - 49 */
7997 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 50 - 57 */
7998 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 58 - 65 */
7999 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 66 - 73 */
8000 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 74 - 81 */
8001 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 82 - 89 */
8002 NULL
, NULL
, NULL
, /* 90 - 92 */
8003 "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" /* 93 - 100 */
8006 static const char *const dwarf_regnames_iamcu
[] =
8008 "eax", "ecx", "edx", "ebx", /* 0 - 3 */
8009 "esp", "ebp", "esi", "edi", /* 4 - 7 */
8010 "eip", "eflags", NULL
, /* 8 - 10 */
8011 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 11 - 18 */
8012 NULL
, NULL
, /* 19 - 20 */
8013 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 21 - 28 */
8014 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 29 - 36 */
8015 NULL
, NULL
, NULL
, /* 37 - 39 */
8016 "es", "cs", "ss", "ds", "fs", "gs", NULL
, NULL
, /* 40 - 47 */
8017 "tr", "ldtr", /* 48 - 49 */
8018 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 50 - 57 */
8019 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 58 - 65 */
8020 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 66 - 73 */
8021 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 74 - 81 */
8022 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 82 - 89 */
8023 NULL
, NULL
, NULL
, /* 90 - 92 */
8024 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
/* 93 - 100 */
8028 init_dwarf_regnames_i386 (void)
8030 dwarf_regnames
= dwarf_regnames_i386
;
8031 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_i386
);
8032 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8036 init_dwarf_regnames_iamcu (void)
8038 dwarf_regnames
= dwarf_regnames_iamcu
;
8039 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_iamcu
);
8040 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8043 static const char *const dwarf_regnames_x86_64
[] =
8045 "rax", "rdx", "rcx", "rbx",
8046 "rsi", "rdi", "rbp", "rsp",
8047 "r8", "r9", "r10", "r11",
8048 "r12", "r13", "r14", "r15",
8050 "xmm0", "xmm1", "xmm2", "xmm3",
8051 "xmm4", "xmm5", "xmm6", "xmm7",
8052 "xmm8", "xmm9", "xmm10", "xmm11",
8053 "xmm12", "xmm13", "xmm14", "xmm15",
8054 "st0", "st1", "st2", "st3",
8055 "st4", "st5", "st6", "st7",
8056 "mm0", "mm1", "mm2", "mm3",
8057 "mm4", "mm5", "mm6", "mm7",
8059 "es", "cs", "ss", "ds", "fs", "gs", NULL
, NULL
,
8060 "fs.base", "gs.base", NULL
, NULL
,
8062 "mxcsr", "fcw", "fsw",
8063 "xmm16", "xmm17", "xmm18", "xmm19",
8064 "xmm20", "xmm21", "xmm22", "xmm23",
8065 "xmm24", "xmm25", "xmm26", "xmm27",
8066 "xmm28", "xmm29", "xmm30", "xmm31",
8067 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 83 - 90 */
8068 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 91 - 98 */
8069 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 99 - 106 */
8070 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 107 - 114 */
8071 NULL
, NULL
, NULL
, /* 115 - 117 */
8072 "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7"
8076 init_dwarf_regnames_x86_64 (void)
8078 dwarf_regnames
= dwarf_regnames_x86_64
;
8079 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_x86_64
);
8080 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8083 static const char *const dwarf_regnames_aarch64
[] =
8085 "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7",
8086 "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15",
8087 "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23",
8088 "x24", "x25", "x26", "x27", "x28", "x29", "x30", "sp",
8089 NULL
, "elr", NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
8090 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, "vg", "ffr",
8091 "p0", "p1", "p2", "p3", "p4", "p5", "p6", "p7",
8092 "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15",
8093 "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7",
8094 "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15",
8095 "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23",
8096 "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31",
8097 "z0", "z1", "z2", "z3", "z4", "z5", "z6", "z7",
8098 "z8", "z9", "z10", "z11", "z12", "z13", "z14", "z15",
8099 "z16", "z17", "z18", "z19", "z20", "z21", "z22", "z23",
8100 "z24", "z25", "z26", "z27", "z28", "z29", "z30", "z31",
8104 init_dwarf_regnames_aarch64 (void)
8106 dwarf_regnames
= dwarf_regnames_aarch64
;
8107 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_aarch64
);
8108 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8111 static const char *const dwarf_regnames_s390
[] =
8113 /* Avoid saying "r5 (r5)", so omit the names of r0-r15. */
8114 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
8115 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
8116 "f0", "f2", "f4", "f6", "f1", "f3", "f5", "f7",
8117 "f8", "f10", "f12", "f14", "f9", "f11", "f13", "f15",
8118 "cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7",
8119 "cr8", "cr9", "cr10", "cr11", "cr12", "cr13", "cr14", "cr15",
8120 "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7",
8121 "a8", "a9", "a10", "a11", "a12", "a13", "a14", "a15",
8124 "v16", "v18", "v20", "v22", "v17", "v19", "v21", "v23",
8125 "v24", "v26", "v28", "v30", "v25", "v27", "v29", "v31",
8129 init_dwarf_regnames_s390 (void)
8131 dwarf_regnames
= dwarf_regnames_s390
;
8132 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_s390
);
8133 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8136 static const char *const dwarf_regnames_riscv
[] =
8138 "zero", "ra", "sp", "gp", "tp", "t0", "t1", "t2", /* 0 - 7 */
8139 "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5", /* 8 - 15 */
8140 "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7", /* 16 - 23 */
8141 "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6", /* 24 - 31 */
8142 "ft0", "ft1", "ft2", "ft3", "ft4", "ft5", "ft6", "ft7", /* 32 - 39 */
8143 "fs0", "fs1", /* 40 - 41 */
8144 "fa0", "fa1", "fa2", "fa3", "fa4", "fa5", "fa6", "fa7", /* 42 - 49 */
8145 "fs2", "fs3", "fs4", "fs5", "fs6", "fs7", "fs8", "fs9", /* 50 - 57 */
8146 "fs10", "fs11", /* 58 - 59 */
8147 "ft8", "ft9", "ft10", "ft11" /* 60 - 63 */
8150 /* A RISC-V replacement for REGNAME_INTERNAL_BY_TABLE_ONLY which handles
8151 the large number of CSRs. */
8154 regname_internal_riscv (unsigned int regno
)
8156 const char *name
= NULL
;
8158 /* Lookup in the table first, this covers GPR and FPR. */
8159 if (regno
< ARRAY_SIZE (dwarf_regnames_riscv
))
8160 name
= dwarf_regnames_riscv
[regno
];
8161 else if (regno
>= 4096 && regno
<= 8191)
8163 /* This might be a CSR, these live in a sparse number space from 4096
8164 to 8191 These numbers are defined in the RISC-V ELF ABI
8168 #define DECLARE_CSR(NAME,VALUE,CLASS,DEFINE_VER,ABORT_VER) \
8169 case VALUE + 4096: name = #NAME; break;
8170 #include "opcode/riscv-opc.h"
8175 static char csr_name
[10];
8176 snprintf (csr_name
, sizeof (csr_name
), "csr%d", (regno
- 4096));
8187 init_dwarf_regnames_riscv (void)
8189 dwarf_regnames
= NULL
;
8190 dwarf_regnames_count
= 8192;
8191 dwarf_regnames_lookup_func
= regname_internal_riscv
;
8195 init_dwarf_regnames_by_elf_machine_code (unsigned int e_machine
)
8197 dwarf_regnames_lookup_func
= NULL
;
8202 init_dwarf_regnames_i386 ();
8206 init_dwarf_regnames_iamcu ();
8212 init_dwarf_regnames_x86_64 ();
8216 init_dwarf_regnames_aarch64 ();
8220 init_dwarf_regnames_s390 ();
8224 init_dwarf_regnames_riscv ();
8232 /* Initialize the DWARF register name lookup state based on the
8233 architecture and specific machine type of a BFD. */
8236 init_dwarf_regnames_by_bfd_arch_and_mach (enum bfd_architecture arch
,
8239 dwarf_regnames_lookup_func
= NULL
;
8246 case bfd_mach_x86_64
:
8247 case bfd_mach_x86_64_intel_syntax
:
8248 case bfd_mach_x64_32
:
8249 case bfd_mach_x64_32_intel_syntax
:
8250 init_dwarf_regnames_x86_64 ();
8254 init_dwarf_regnames_i386 ();
8259 case bfd_arch_iamcu
:
8260 init_dwarf_regnames_iamcu ();
8263 case bfd_arch_aarch64
:
8264 init_dwarf_regnames_aarch64();
8268 init_dwarf_regnames_s390 ();
8271 case bfd_arch_riscv
:
8272 init_dwarf_regnames_riscv ();
8281 regname_internal_by_table_only (unsigned int regno
)
8283 if (dwarf_regnames
!= NULL
8284 && regno
< dwarf_regnames_count
8285 && dwarf_regnames
[regno
] != NULL
)
8286 return dwarf_regnames
[regno
];
8292 regname (unsigned int regno
, int name_only_p
)
8294 static char reg
[64];
8296 const char *name
= NULL
;
8298 if (dwarf_regnames_lookup_func
!= NULL
)
8299 name
= dwarf_regnames_lookup_func (regno
);
8305 snprintf (reg
, sizeof (reg
), "r%d (%s)", regno
, name
);
8308 snprintf (reg
, sizeof (reg
), "r%d", regno
);
8313 frame_display_row (Frame_Chunk
*fc
, int *need_col_headers
, unsigned int *max_regs
)
8318 if (*max_regs
!= fc
->ncols
)
8319 *max_regs
= fc
->ncols
;
8321 if (*need_col_headers
)
8323 *need_col_headers
= 0;
8325 printf ("%-*s CFA ", eh_addr_size
* 2, " LOC");
8327 for (r
= 0; r
< *max_regs
; r
++)
8328 if (fc
->col_type
[r
] != DW_CFA_unreferenced
)
8333 printf ("%-5s ", regname (r
, 1));
8339 print_dwarf_vma (fc
->pc_begin
, eh_addr_size
);
8341 strcpy (tmp
, "exp");
8343 sprintf (tmp
, "%s%+d", regname (fc
->cfa_reg
, 1), (int) fc
->cfa_offset
);
8344 printf ("%-8s ", tmp
);
8346 for (r
= 0; r
< fc
->ncols
; r
++)
8348 if (fc
->col_type
[r
] != DW_CFA_unreferenced
)
8350 switch (fc
->col_type
[r
])
8352 case DW_CFA_undefined
:
8355 case DW_CFA_same_value
:
8359 sprintf (tmp
, "c%+d", fc
->col_offset
[r
]);
8361 case DW_CFA_val_offset
:
8362 sprintf (tmp
, "v%+d", fc
->col_offset
[r
]);
8364 case DW_CFA_register
:
8365 sprintf (tmp
, "%s", regname (fc
->col_offset
[r
], 0));
8367 case DW_CFA_expression
:
8368 strcpy (tmp
, "exp");
8370 case DW_CFA_val_expression
:
8371 strcpy (tmp
, "vexp");
8374 strcpy (tmp
, "n/a");
8377 printf ("%-5s ", tmp
);
8383 #define GET(VAR, N) SAFE_BYTE_GET_AND_INC (VAR, start, N, end)
8385 static unsigned char *
8386 read_cie (unsigned char *start
, unsigned char *end
,
8387 Frame_Chunk
**p_cie
, int *p_version
,
8388 bfd_size_type
*p_aug_len
, unsigned char **p_aug
)
8392 unsigned char *augmentation_data
= NULL
;
8393 bfd_size_type augmentation_data_len
= 0;
8396 /* PR 17512: file: 001-228113-0.004. */
8400 fc
= (Frame_Chunk
*) xmalloc (sizeof (Frame_Chunk
));
8401 memset (fc
, 0, sizeof (Frame_Chunk
));
8403 fc
->col_type
= (short int *) xmalloc (sizeof (short int));
8404 fc
->col_offset
= (int *) xmalloc (sizeof (int));
8408 fc
->augmentation
= (char *) start
;
8409 /* PR 17512: file: 001-228113-0.004.
8410 Skip past augmentation name, but avoid running off the end of the data. */
8412 if (* start
++ == '\0')
8416 warn (_("No terminator for augmentation name\n"));
8420 if (strcmp (fc
->augmentation
, "eh") == 0)
8422 if (eh_addr_size
> (size_t) (end
- start
))
8424 start
+= eh_addr_size
;
8429 if (2 > (size_t) (end
- start
))
8431 GET (fc
->ptr_size
, 1);
8432 if (fc
->ptr_size
< 1 || fc
->ptr_size
> 8)
8434 warn (_("Invalid pointer size (%d) in CIE data\n"), fc
->ptr_size
);
8438 GET (fc
->segment_size
, 1);
8439 /* PR 17512: file: e99d2804. */
8440 if (fc
->segment_size
> 8 || fc
->segment_size
+ fc
->ptr_size
> 8)
8442 warn (_("Invalid segment size (%d) in CIE data\n"), fc
->segment_size
);
8446 eh_addr_size
= fc
->ptr_size
;
8450 fc
->ptr_size
= eh_addr_size
;
8451 fc
->segment_size
= 0;
8454 READ_ULEB (fc
->code_factor
, start
, end
);
8455 READ_SLEB (fc
->data_factor
, start
, end
);
8466 READ_ULEB (fc
->ra
, start
, end
);
8469 if (fc
->augmentation
[0] == 'z')
8473 READ_ULEB (augmentation_data_len
, start
, end
);
8474 augmentation_data
= start
;
8475 /* PR 17512: file: 11042-2589-0.004. */
8476 if (augmentation_data_len
> (bfd_size_type
) (end
- start
))
8478 warn (_("Augmentation data too long: 0x%s, expected at most %#lx\n"),
8479 dwarf_vmatoa ("x", augmentation_data_len
),
8480 (unsigned long) (end
- start
));
8483 start
+= augmentation_data_len
;
8486 if (augmentation_data_len
)
8490 unsigned char *qend
;
8492 p
= (unsigned char *) fc
->augmentation
+ 1;
8493 q
= augmentation_data
;
8494 qend
= q
+ augmentation_data_len
;
8496 while (p
< end
&& q
< qend
)
8501 q
+= 1 + size_of_encoded_value (*q
);
8503 fc
->fde_encoding
= *q
++;
8512 /* Note - it is OK if this loop terminates with q < qend.
8513 Padding may have been inserted to align the end of the CIE. */
8518 *p_version
= version
;
8521 *p_aug_len
= augmentation_data_len
;
8522 *p_aug
= augmentation_data
;
8527 free (fc
->col_offset
);
8528 free (fc
->col_type
);
8533 /* Prints out the contents on the DATA array formatted as unsigned bytes.
8534 If do_wide is not enabled, then formats the output to fit into 80 columns.
8535 PRINTED contains the number of characters already written to the current
8539 display_data (bfd_size_type printed
,
8540 const unsigned char * data
,
8541 const bfd_size_type len
)
8543 if (do_wide
|| len
< ((80 - printed
) / 3))
8544 for (printed
= 0; printed
< len
; ++printed
)
8545 printf (" %02x", data
[printed
]);
8548 for (printed
= 0; printed
< len
; ++printed
)
8550 if (printed
% (80 / 3) == 0)
8552 printf (" %02x", data
[printed
]);
8557 /* Prints out the contents on the augmentation data array.
8558 If do_wide is not enabled, then formats the output to fit into 80 columns. */
8561 display_augmentation_data (const unsigned char * data
, const bfd_size_type len
)
8565 i
= printf (_(" Augmentation data: "));
8566 display_data (i
, data
, len
);
8570 display_debug_frames (struct dwarf_section
*section
,
8571 void *file ATTRIBUTE_UNUSED
)
8573 unsigned char *start
= section
->start
;
8574 unsigned char *end
= start
+ section
->size
;
8575 unsigned char *section_start
= start
;
8576 Frame_Chunk
*chunks
= NULL
, *forward_refs
= NULL
;
8577 Frame_Chunk
*remembered_state
= NULL
;
8579 bool is_eh
= strcmp (section
->name
, ".eh_frame") == 0;
8580 unsigned int max_regs
= 0;
8581 const char *bad_reg
= _("bad register: ");
8582 unsigned int saved_eh_addr_size
= eh_addr_size
;
8584 introduce (section
, false);
8588 unsigned char *saved_start
;
8589 unsigned char *block_end
;
8594 int need_col_headers
= 1;
8595 unsigned char *augmentation_data
= NULL
;
8596 bfd_size_type augmentation_data_len
= 0;
8597 unsigned int encoded_ptr_size
= saved_eh_addr_size
;
8598 unsigned int offset_size
;
8600 static Frame_Chunk fde_fc
;
8602 saved_start
= start
;
8604 SAFE_BYTE_GET_AND_INC (length
, start
, 4, end
);
8608 printf ("\n%08lx ZERO terminator\n\n",
8609 (unsigned long)(saved_start
- section_start
));
8610 /* Skip any zero terminators that directly follow.
8611 A corrupt section size could have loaded a whole
8612 slew of zero filled memory bytes. eg
8613 PR 17512: file: 070-19381-0.004. */
8614 while (start
< end
&& * start
== 0)
8619 if (length
== 0xffffffff)
8621 SAFE_BYTE_GET_AND_INC (length
, start
, 8, end
);
8627 if (length
> (size_t) (end
- start
))
8629 warn ("Invalid length 0x%s in FDE at %#08lx\n",
8630 dwarf_vmatoa_1 (NULL
, length
, offset_size
),
8631 (unsigned long) (saved_start
- section_start
));
8635 block_end
= start
+ length
;
8637 SAFE_BYTE_GET_AND_INC (cie_id
, start
, offset_size
, block_end
);
8639 if (is_eh
? (cie_id
== 0) : ((offset_size
== 4 && cie_id
== DW_CIE_ID
)
8640 || (offset_size
== 8 && cie_id
== DW64_CIE_ID
)))
8645 start
= read_cie (start
, block_end
, &cie
, &version
,
8646 &augmentation_data_len
, &augmentation_data
);
8647 /* PR 17512: file: 027-135133-0.005. */
8654 fc
->chunk_start
= saved_start
;
8655 mreg
= max_regs
> 0 ? max_regs
- 1 : 0;
8658 if (frame_need_space (fc
, mreg
) < 0)
8660 if (fc
->fde_encoding
)
8661 encoded_ptr_size
= size_of_encoded_value (fc
->fde_encoding
);
8663 printf ("\n%08lx ", (unsigned long) (saved_start
- section_start
));
8664 print_dwarf_vma (length
, fc
->ptr_size
);
8665 print_dwarf_vma (cie_id
, offset_size
);
8667 if (do_debug_frames_interp
)
8669 printf ("CIE \"%s\" cf=%d df=%d ra=%d\n", fc
->augmentation
,
8670 fc
->code_factor
, fc
->data_factor
, fc
->ra
);
8675 printf (" Version: %d\n", version
);
8676 printf (" Augmentation: \"%s\"\n", fc
->augmentation
);
8679 printf (" Pointer Size: %u\n", fc
->ptr_size
);
8680 printf (" Segment Size: %u\n", fc
->segment_size
);
8682 printf (" Code alignment factor: %u\n", fc
->code_factor
);
8683 printf (" Data alignment factor: %d\n", fc
->data_factor
);
8684 printf (" Return address column: %d\n", fc
->ra
);
8686 if (augmentation_data_len
)
8687 display_augmentation_data (augmentation_data
, augmentation_data_len
);
8694 unsigned char *look_for
;
8695 unsigned long segment_selector
;
8701 dwarf_vma sign
= (dwarf_vma
) 1 << (offset_size
* 8 - 1);
8702 cie_off
= (cie_off
^ sign
) - sign
;
8703 cie_off
= start
- 4 - section_start
- cie_off
;
8706 look_for
= section_start
+ cie_off
;
8707 if (cie_off
<= (dwarf_vma
) (saved_start
- section_start
))
8709 for (cie
= chunks
; cie
; cie
= cie
->next
)
8710 if (cie
->chunk_start
== look_for
)
8713 else if (cie_off
>= section
->size
)
8717 for (cie
= forward_refs
; cie
; cie
= cie
->next
)
8718 if (cie
->chunk_start
== look_for
)
8722 unsigned int off_size
;
8723 unsigned char *cie_scan
;
8725 cie_scan
= look_for
;
8727 SAFE_BYTE_GET_AND_INC (length
, cie_scan
, 4, end
);
8728 if (length
== 0xffffffff)
8730 SAFE_BYTE_GET_AND_INC (length
, cie_scan
, 8, end
);
8733 if (length
!= 0 && length
<= (size_t) (end
- cie_scan
))
8736 unsigned char *cie_end
= cie_scan
+ length
;
8738 SAFE_BYTE_GET_AND_INC (c_id
, cie_scan
, off_size
,
8742 : ((off_size
== 4 && c_id
== DW_CIE_ID
)
8743 || (off_size
== 8 && c_id
== DW64_CIE_ID
)))
8748 read_cie (cie_scan
, cie_end
, &cie
, &version
,
8749 &augmentation_data_len
, &augmentation_data
);
8750 /* PR 17512: file: 3450-2098-0.004. */
8753 warn (_("Failed to read CIE information\n"));
8756 cie
->next
= forward_refs
;
8758 cie
->chunk_start
= look_for
;
8759 mreg
= max_regs
> 0 ? max_regs
- 1 : 0;
8762 if (frame_need_space (cie
, mreg
) < 0)
8764 warn (_("Invalid max register\n"));
8767 if (cie
->fde_encoding
)
8769 = size_of_encoded_value (cie
->fde_encoding
);
8776 memset (fc
, 0, sizeof (Frame_Chunk
));
8781 fc
->col_type
= (short int *) xmalloc (sizeof (short int));
8782 fc
->col_offset
= (int *) xmalloc (sizeof (int));
8783 if (frame_need_space (fc
, max_regs
> 0 ? max_regs
- 1 : 0) < 0)
8785 warn (_("Invalid max register\n"));
8789 fc
->augmentation
= "";
8790 fc
->fde_encoding
= 0;
8791 fc
->ptr_size
= eh_addr_size
;
8792 fc
->segment_size
= 0;
8796 fc
->ncols
= cie
->ncols
;
8797 fc
->col_type
= (short int *) xcmalloc (fc
->ncols
, sizeof (short int));
8798 fc
->col_offset
= (int *) xcmalloc (fc
->ncols
, sizeof (int));
8799 memcpy (fc
->col_type
, cie
->col_type
, fc
->ncols
* sizeof (short int));
8800 memcpy (fc
->col_offset
, cie
->col_offset
, fc
->ncols
* sizeof (int));
8801 fc
->augmentation
= cie
->augmentation
;
8802 fc
->ptr_size
= cie
->ptr_size
;
8803 eh_addr_size
= cie
->ptr_size
;
8804 fc
->segment_size
= cie
->segment_size
;
8805 fc
->code_factor
= cie
->code_factor
;
8806 fc
->data_factor
= cie
->data_factor
;
8807 fc
->cfa_reg
= cie
->cfa_reg
;
8808 fc
->cfa_offset
= cie
->cfa_offset
;
8810 if (frame_need_space (fc
, max_regs
> 0 ? max_regs
- 1: 0) < 0)
8812 warn (_("Invalid max register\n"));
8815 fc
->fde_encoding
= cie
->fde_encoding
;
8818 if (fc
->fde_encoding
)
8819 encoded_ptr_size
= size_of_encoded_value (fc
->fde_encoding
);
8821 segment_selector
= 0;
8822 if (fc
->segment_size
)
8824 if (fc
->segment_size
> sizeof (segment_selector
))
8826 /* PR 17512: file: 9e196b3e. */
8827 warn (_("Probably corrupt segment size: %d - using 4 instead\n"), fc
->segment_size
);
8828 fc
->segment_size
= 4;
8830 SAFE_BYTE_GET_AND_INC (segment_selector
, start
,
8831 fc
->segment_size
, block_end
);
8834 fc
->pc_begin
= get_encoded_value (&start
, fc
->fde_encoding
, section
,
8837 /* FIXME: It appears that sometimes the final pc_range value is
8838 encoded in less than encoded_ptr_size bytes. See the x86_64
8839 run of the "objcopy on compressed debug sections" test for an
8841 SAFE_BYTE_GET_AND_INC (fc
->pc_range
, start
, encoded_ptr_size
,
8844 if (cie
->augmentation
[0] == 'z')
8846 READ_ULEB (augmentation_data_len
, start
, block_end
);
8847 augmentation_data
= start
;
8848 /* PR 17512 file: 722-8446-0.004 and PR 22386. */
8849 if (augmentation_data_len
> (bfd_size_type
) (block_end
- start
))
8851 warn (_("Augmentation data too long: 0x%s, "
8852 "expected at most %#lx\n"),
8853 dwarf_vmatoa ("x", augmentation_data_len
),
8854 (unsigned long) (block_end
- start
));
8856 augmentation_data
= NULL
;
8857 augmentation_data_len
= 0;
8859 start
+= augmentation_data_len
;
8862 printf ("\n%08lx %s %s FDE ",
8863 (unsigned long)(saved_start
- section_start
),
8864 dwarf_vmatoa_1 (NULL
, length
, fc
->ptr_size
),
8865 dwarf_vmatoa_1 (NULL
, cie_id
, offset_size
));
8867 if (cie
->chunk_start
)
8868 printf ("cie=%08lx",
8869 (unsigned long) (cie
->chunk_start
- section_start
));
8871 /* Ideally translate "invalid " to 8 chars, trailing space
8873 printf (_("cie=invalid "));
8876 if (fc
->segment_size
)
8877 printf ("%04lx:", segment_selector
);
8880 dwarf_vmatoa_1 (NULL
, fc
->pc_begin
, fc
->ptr_size
),
8881 dwarf_vmatoa_1 (NULL
, fc
->pc_begin
+ fc
->pc_range
, fc
->ptr_size
));
8883 if (! do_debug_frames_interp
&& augmentation_data_len
)
8885 display_augmentation_data (augmentation_data
, augmentation_data_len
);
8890 /* At this point, fc is the current chunk, cie (if any) is set, and
8891 we're about to interpret instructions for the chunk. */
8892 /* ??? At present we need to do this always, since this sizes the
8893 fc->col_type and fc->col_offset arrays, which we write into always.
8894 We should probably split the interpreted and non-interpreted bits
8895 into two different routines, since there's so much that doesn't
8896 really overlap between them. */
8897 if (1 || do_debug_frames_interp
)
8899 /* Start by making a pass over the chunk, allocating storage
8900 and taking note of what registers are used. */
8901 unsigned char *tmp
= start
;
8903 while (start
< block_end
)
8905 unsigned int reg
, op
, opa
;
8913 /* Warning: if you add any more cases to this switch, be
8914 sure to add them to the corresponding switch below. */
8917 case DW_CFA_advance_loc
:
8920 SKIP_ULEB (start
, block_end
);
8921 if (frame_need_space (fc
, opa
) >= 0)
8922 fc
->col_type
[opa
] = DW_CFA_undefined
;
8924 case DW_CFA_restore
:
8925 if (frame_need_space (fc
, opa
) >= 0)
8926 fc
->col_type
[opa
] = DW_CFA_undefined
;
8928 case DW_CFA_set_loc
:
8929 if ((size_t) (block_end
- start
) < encoded_ptr_size
)
8932 start
+= encoded_ptr_size
;
8934 case DW_CFA_advance_loc1
:
8935 if ((size_t) (block_end
- start
) < 1)
8940 case DW_CFA_advance_loc2
:
8941 if ((size_t) (block_end
- start
) < 2)
8946 case DW_CFA_advance_loc4
:
8947 if ((size_t) (block_end
- start
) < 4)
8952 case DW_CFA_offset_extended
:
8953 case DW_CFA_val_offset
:
8954 READ_ULEB (reg
, start
, block_end
);
8955 SKIP_ULEB (start
, block_end
);
8956 if (frame_need_space (fc
, reg
) >= 0)
8957 fc
->col_type
[reg
] = DW_CFA_undefined
;
8959 case DW_CFA_restore_extended
:
8960 READ_ULEB (reg
, start
, block_end
);
8961 if (frame_need_space (fc
, reg
) >= 0)
8962 fc
->col_type
[reg
] = DW_CFA_undefined
;
8964 case DW_CFA_undefined
:
8965 READ_ULEB (reg
, start
, block_end
);
8966 if (frame_need_space (fc
, reg
) >= 0)
8967 fc
->col_type
[reg
] = DW_CFA_undefined
;
8969 case DW_CFA_same_value
:
8970 READ_ULEB (reg
, start
, block_end
);
8971 if (frame_need_space (fc
, reg
) >= 0)
8972 fc
->col_type
[reg
] = DW_CFA_undefined
;
8974 case DW_CFA_register
:
8975 READ_ULEB (reg
, start
, block_end
);
8976 SKIP_ULEB (start
, block_end
);
8977 if (frame_need_space (fc
, reg
) >= 0)
8978 fc
->col_type
[reg
] = DW_CFA_undefined
;
8980 case DW_CFA_def_cfa
:
8981 SKIP_ULEB (start
, block_end
);
8982 SKIP_ULEB (start
, block_end
);
8984 case DW_CFA_def_cfa_register
:
8985 SKIP_ULEB (start
, block_end
);
8987 case DW_CFA_def_cfa_offset
:
8988 SKIP_ULEB (start
, block_end
);
8990 case DW_CFA_def_cfa_expression
:
8991 READ_ULEB (temp
, start
, block_end
);
8992 if ((size_t) (block_end
- start
) < temp
)
8997 case DW_CFA_expression
:
8998 case DW_CFA_val_expression
:
8999 READ_ULEB (reg
, start
, block_end
);
9000 READ_ULEB (temp
, start
, block_end
);
9001 if ((size_t) (block_end
- start
) < temp
)
9005 if (frame_need_space (fc
, reg
) >= 0)
9006 fc
->col_type
[reg
] = DW_CFA_undefined
;
9008 case DW_CFA_offset_extended_sf
:
9009 case DW_CFA_val_offset_sf
:
9010 READ_ULEB (reg
, start
, block_end
);
9011 SKIP_SLEB (start
, block_end
);
9012 if (frame_need_space (fc
, reg
) >= 0)
9013 fc
->col_type
[reg
] = DW_CFA_undefined
;
9015 case DW_CFA_def_cfa_sf
:
9016 SKIP_ULEB (start
, block_end
);
9017 SKIP_SLEB (start
, block_end
);
9019 case DW_CFA_def_cfa_offset_sf
:
9020 SKIP_SLEB (start
, block_end
);
9022 case DW_CFA_MIPS_advance_loc8
:
9023 if ((size_t) (block_end
- start
) < 8)
9028 case DW_CFA_GNU_args_size
:
9029 SKIP_ULEB (start
, block_end
);
9031 case DW_CFA_GNU_negative_offset_extended
:
9032 READ_ULEB (reg
, start
, block_end
);
9033 SKIP_ULEB (start
, block_end
);
9034 if (frame_need_space (fc
, reg
) >= 0)
9035 fc
->col_type
[reg
] = DW_CFA_undefined
;
9046 /* Now we know what registers are used, make a second pass over
9047 the chunk, this time actually printing out the info. */
9049 while (start
< block_end
)
9052 unsigned long ul
, roffs
;
9053 /* Note: It is tempting to use an unsigned long for 'reg' but there
9054 are various functions, notably frame_space_needed() that assume that
9055 reg is an unsigned int. */
9060 const char *reg_prefix
= "";
9067 /* Make a note if something other than DW_CFA_nop happens. */
9068 if (op
!= DW_CFA_nop
)
9071 /* Warning: if you add any more cases to this switch, be
9072 sure to add them to the corresponding switch above. */
9075 case DW_CFA_advance_loc
:
9076 if (do_debug_frames_interp
)
9077 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9079 printf (" DW_CFA_advance_loc: %d to %s\n",
9080 opa
* fc
->code_factor
,
9081 dwarf_vmatoa_1 (NULL
,
9082 fc
->pc_begin
+ opa
* fc
->code_factor
,
9084 fc
->pc_begin
+= opa
* fc
->code_factor
;
9088 READ_ULEB (roffs
, start
, block_end
);
9089 if (opa
>= (unsigned int) fc
->ncols
)
9090 reg_prefix
= bad_reg
;
9091 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9092 printf (" DW_CFA_offset: %s%s at cfa%+ld\n",
9093 reg_prefix
, regname (opa
, 0),
9094 roffs
* fc
->data_factor
);
9095 if (*reg_prefix
== '\0')
9097 fc
->col_type
[opa
] = DW_CFA_offset
;
9098 fc
->col_offset
[opa
] = roffs
* fc
->data_factor
;
9102 case DW_CFA_restore
:
9103 if (opa
>= (unsigned int) fc
->ncols
)
9104 reg_prefix
= bad_reg
;
9105 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9106 printf (" DW_CFA_restore: %s%s\n",
9107 reg_prefix
, regname (opa
, 0));
9108 if (*reg_prefix
!= '\0')
9111 if (opa
>= (unsigned int) cie
->ncols
9112 || (do_debug_frames_interp
9113 && cie
->col_type
[opa
] == DW_CFA_unreferenced
))
9115 fc
->col_type
[opa
] = DW_CFA_undefined
;
9116 fc
->col_offset
[opa
] = 0;
9120 fc
->col_type
[opa
] = cie
->col_type
[opa
];
9121 fc
->col_offset
[opa
] = cie
->col_offset
[opa
];
9125 case DW_CFA_set_loc
:
9126 vma
= get_encoded_value (&start
, fc
->fde_encoding
, section
,
9128 if (do_debug_frames_interp
)
9129 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9131 printf (" DW_CFA_set_loc: %s\n",
9132 dwarf_vmatoa_1 (NULL
, vma
, fc
->ptr_size
));
9136 case DW_CFA_advance_loc1
:
9137 SAFE_BYTE_GET_AND_INC (ofs
, start
, 1, block_end
);
9138 if (do_debug_frames_interp
)
9139 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9141 printf (" DW_CFA_advance_loc1: %ld to %s\n",
9142 (unsigned long) (ofs
* fc
->code_factor
),
9143 dwarf_vmatoa_1 (NULL
,
9144 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9146 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9149 case DW_CFA_advance_loc2
:
9150 SAFE_BYTE_GET_AND_INC (ofs
, start
, 2, block_end
);
9151 if (do_debug_frames_interp
)
9152 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9154 printf (" DW_CFA_advance_loc2: %ld to %s\n",
9155 (unsigned long) (ofs
* fc
->code_factor
),
9156 dwarf_vmatoa_1 (NULL
,
9157 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9159 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9162 case DW_CFA_advance_loc4
:
9163 SAFE_BYTE_GET_AND_INC (ofs
, start
, 4, block_end
);
9164 if (do_debug_frames_interp
)
9165 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9167 printf (" DW_CFA_advance_loc4: %ld to %s\n",
9168 (unsigned long) (ofs
* fc
->code_factor
),
9169 dwarf_vmatoa_1 (NULL
,
9170 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9172 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9175 case DW_CFA_offset_extended
:
9176 READ_ULEB (reg
, start
, block_end
);
9177 READ_ULEB (roffs
, start
, block_end
);
9178 if (reg
>= (unsigned int) fc
->ncols
)
9179 reg_prefix
= bad_reg
;
9180 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9181 printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n",
9182 reg_prefix
, regname (reg
, 0),
9183 roffs
* fc
->data_factor
);
9184 if (*reg_prefix
== '\0')
9186 fc
->col_type
[reg
] = DW_CFA_offset
;
9187 fc
->col_offset
[reg
] = roffs
* fc
->data_factor
;
9191 case DW_CFA_val_offset
:
9192 READ_ULEB (reg
, start
, block_end
);
9193 READ_ULEB (roffs
, start
, block_end
);
9194 if (reg
>= (unsigned int) fc
->ncols
)
9195 reg_prefix
= bad_reg
;
9196 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9197 printf (" DW_CFA_val_offset: %s%s is cfa%+ld\n",
9198 reg_prefix
, regname (reg
, 0),
9199 roffs
* fc
->data_factor
);
9200 if (*reg_prefix
== '\0')
9202 fc
->col_type
[reg
] = DW_CFA_val_offset
;
9203 fc
->col_offset
[reg
] = roffs
* fc
->data_factor
;
9207 case DW_CFA_restore_extended
:
9208 READ_ULEB (reg
, start
, block_end
);
9209 if (reg
>= (unsigned int) fc
->ncols
)
9210 reg_prefix
= bad_reg
;
9211 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9212 printf (" DW_CFA_restore_extended: %s%s\n",
9213 reg_prefix
, regname (reg
, 0));
9214 if (*reg_prefix
!= '\0')
9217 if (reg
>= (unsigned int) cie
->ncols
)
9219 fc
->col_type
[reg
] = DW_CFA_undefined
;
9220 fc
->col_offset
[reg
] = 0;
9224 fc
->col_type
[reg
] = cie
->col_type
[reg
];
9225 fc
->col_offset
[reg
] = cie
->col_offset
[reg
];
9229 case DW_CFA_undefined
:
9230 READ_ULEB (reg
, start
, block_end
);
9231 if (reg
>= (unsigned int) fc
->ncols
)
9232 reg_prefix
= bad_reg
;
9233 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9234 printf (" DW_CFA_undefined: %s%s\n",
9235 reg_prefix
, regname (reg
, 0));
9236 if (*reg_prefix
== '\0')
9238 fc
->col_type
[reg
] = DW_CFA_undefined
;
9239 fc
->col_offset
[reg
] = 0;
9243 case DW_CFA_same_value
:
9244 READ_ULEB (reg
, start
, block_end
);
9245 if (reg
>= (unsigned int) fc
->ncols
)
9246 reg_prefix
= bad_reg
;
9247 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9248 printf (" DW_CFA_same_value: %s%s\n",
9249 reg_prefix
, regname (reg
, 0));
9250 if (*reg_prefix
== '\0')
9252 fc
->col_type
[reg
] = DW_CFA_same_value
;
9253 fc
->col_offset
[reg
] = 0;
9257 case DW_CFA_register
:
9258 READ_ULEB (reg
, start
, block_end
);
9259 READ_ULEB (roffs
, start
, block_end
);
9260 if (reg
>= (unsigned int) fc
->ncols
)
9261 reg_prefix
= bad_reg
;
9262 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9264 printf (" DW_CFA_register: %s%s in ",
9265 reg_prefix
, regname (reg
, 0));
9266 puts (regname (roffs
, 0));
9268 if (*reg_prefix
== '\0')
9270 fc
->col_type
[reg
] = DW_CFA_register
;
9271 fc
->col_offset
[reg
] = roffs
;
9275 case DW_CFA_remember_state
:
9276 if (! do_debug_frames_interp
)
9277 printf (" DW_CFA_remember_state\n");
9278 rs
= (Frame_Chunk
*) xmalloc (sizeof (Frame_Chunk
));
9279 rs
->cfa_offset
= fc
->cfa_offset
;
9280 rs
->cfa_reg
= fc
->cfa_reg
;
9282 rs
->cfa_exp
= fc
->cfa_exp
;
9283 rs
->ncols
= fc
->ncols
;
9284 rs
->col_type
= (short int *) xcmalloc (rs
->ncols
,
9285 sizeof (* rs
->col_type
));
9286 rs
->col_offset
= (int *) xcmalloc (rs
->ncols
, sizeof (* rs
->col_offset
));
9287 memcpy (rs
->col_type
, fc
->col_type
, rs
->ncols
* sizeof (* fc
->col_type
));
9288 memcpy (rs
->col_offset
, fc
->col_offset
, rs
->ncols
* sizeof (* fc
->col_offset
));
9289 rs
->next
= remembered_state
;
9290 remembered_state
= rs
;
9293 case DW_CFA_restore_state
:
9294 if (! do_debug_frames_interp
)
9295 printf (" DW_CFA_restore_state\n");
9296 rs
= remembered_state
;
9299 remembered_state
= rs
->next
;
9300 fc
->cfa_offset
= rs
->cfa_offset
;
9301 fc
->cfa_reg
= rs
->cfa_reg
;
9303 fc
->cfa_exp
= rs
->cfa_exp
;
9304 if (frame_need_space (fc
, rs
->ncols
- 1) < 0)
9306 warn (_("Invalid column number in saved frame state\n"));
9310 memcpy (fc
->col_type
, rs
->col_type
, rs
->ncols
* sizeof (* rs
->col_type
));
9311 memcpy (fc
->col_offset
, rs
->col_offset
,
9312 rs
->ncols
* sizeof (* rs
->col_offset
));
9313 free (rs
->col_type
);
9314 free (rs
->col_offset
);
9317 else if (do_debug_frames_interp
)
9318 printf ("Mismatched DW_CFA_restore_state\n");
9321 case DW_CFA_def_cfa
:
9322 READ_ULEB (fc
->cfa_reg
, start
, block_end
);
9323 READ_ULEB (fc
->cfa_offset
, start
, block_end
);
9325 if (! do_debug_frames_interp
)
9326 printf (" DW_CFA_def_cfa: %s ofs %d\n",
9327 regname (fc
->cfa_reg
, 0), (int) fc
->cfa_offset
);
9330 case DW_CFA_def_cfa_register
:
9331 READ_ULEB (fc
->cfa_reg
, start
, block_end
);
9333 if (! do_debug_frames_interp
)
9334 printf (" DW_CFA_def_cfa_register: %s\n",
9335 regname (fc
->cfa_reg
, 0));
9338 case DW_CFA_def_cfa_offset
:
9339 READ_ULEB (fc
->cfa_offset
, start
, block_end
);
9340 if (! do_debug_frames_interp
)
9341 printf (" DW_CFA_def_cfa_offset: %d\n", (int) fc
->cfa_offset
);
9345 if (! do_debug_frames_interp
)
9346 printf (" DW_CFA_nop\n");
9349 case DW_CFA_def_cfa_expression
:
9350 READ_ULEB (ul
, start
, block_end
);
9351 if (ul
> (size_t) (block_end
- start
))
9353 printf (_(" DW_CFA_def_cfa_expression: <corrupt len %lu>\n"), ul
);
9356 if (! do_debug_frames_interp
)
9358 printf (" DW_CFA_def_cfa_expression (");
9359 decode_location_expression (start
, eh_addr_size
, 0, -1,
9367 case DW_CFA_expression
:
9368 READ_ULEB (reg
, start
, block_end
);
9369 READ_ULEB (ul
, start
, block_end
);
9370 if (reg
>= (unsigned int) fc
->ncols
)
9371 reg_prefix
= bad_reg
;
9372 /* PR 17512: file: 069-133014-0.006. */
9373 /* PR 17512: file: 98c02eb4. */
9374 if (ul
> (size_t) (block_end
- start
))
9376 printf (_(" DW_CFA_expression: <corrupt len %lu>\n"), ul
);
9379 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9381 printf (" DW_CFA_expression: %s%s (",
9382 reg_prefix
, regname (reg
, 0));
9383 decode_location_expression (start
, eh_addr_size
, 0, -1,
9387 if (*reg_prefix
== '\0')
9388 fc
->col_type
[reg
] = DW_CFA_expression
;
9392 case DW_CFA_val_expression
:
9393 READ_ULEB (reg
, start
, block_end
);
9394 READ_ULEB (ul
, start
, block_end
);
9395 if (reg
>= (unsigned int) fc
->ncols
)
9396 reg_prefix
= bad_reg
;
9397 if (ul
> (size_t) (block_end
- start
))
9399 printf (" DW_CFA_val_expression: <corrupt len %lu>\n", ul
);
9402 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9404 printf (" DW_CFA_val_expression: %s%s (",
9405 reg_prefix
, regname (reg
, 0));
9406 decode_location_expression (start
, eh_addr_size
, 0, -1,
9410 if (*reg_prefix
== '\0')
9411 fc
->col_type
[reg
] = DW_CFA_val_expression
;
9415 case DW_CFA_offset_extended_sf
:
9416 READ_ULEB (reg
, start
, block_end
);
9417 READ_SLEB (l
, start
, block_end
);
9418 if (frame_need_space (fc
, reg
) < 0)
9419 reg_prefix
= bad_reg
;
9420 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9421 printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n",
9422 reg_prefix
, regname (reg
, 0),
9423 (long)(l
* fc
->data_factor
));
9424 if (*reg_prefix
== '\0')
9426 fc
->col_type
[reg
] = DW_CFA_offset
;
9427 fc
->col_offset
[reg
] = l
* fc
->data_factor
;
9431 case DW_CFA_val_offset_sf
:
9432 READ_ULEB (reg
, start
, block_end
);
9433 READ_SLEB (l
, start
, block_end
);
9434 if (frame_need_space (fc
, reg
) < 0)
9435 reg_prefix
= bad_reg
;
9436 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9437 printf (" DW_CFA_val_offset_sf: %s%s is cfa%+ld\n",
9438 reg_prefix
, regname (reg
, 0),
9439 (long)(l
* fc
->data_factor
));
9440 if (*reg_prefix
== '\0')
9442 fc
->col_type
[reg
] = DW_CFA_val_offset
;
9443 fc
->col_offset
[reg
] = l
* fc
->data_factor
;
9447 case DW_CFA_def_cfa_sf
:
9448 READ_ULEB (fc
->cfa_reg
, start
, block_end
);
9449 READ_SLEB (l
, start
, block_end
);
9450 l
*= fc
->data_factor
;
9453 if (! do_debug_frames_interp
)
9454 printf (" DW_CFA_def_cfa_sf: %s ofs %ld\n",
9455 regname (fc
->cfa_reg
, 0), (long) l
);
9458 case DW_CFA_def_cfa_offset_sf
:
9459 READ_SLEB (l
, start
, block_end
);
9460 l
*= fc
->data_factor
;
9462 if (! do_debug_frames_interp
)
9463 printf (" DW_CFA_def_cfa_offset_sf: %ld\n", (long) l
);
9466 case DW_CFA_MIPS_advance_loc8
:
9467 SAFE_BYTE_GET_AND_INC (ofs
, start
, 8, block_end
);
9468 if (do_debug_frames_interp
)
9469 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9471 printf (" DW_CFA_MIPS_advance_loc8: %ld to %s\n",
9472 (unsigned long) (ofs
* fc
->code_factor
),
9473 dwarf_vmatoa_1 (NULL
,
9474 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9476 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9479 case DW_CFA_GNU_window_save
:
9480 if (! do_debug_frames_interp
)
9481 printf (" DW_CFA_GNU_window_save\n");
9484 case DW_CFA_GNU_args_size
:
9485 READ_ULEB (ul
, start
, block_end
);
9486 if (! do_debug_frames_interp
)
9487 printf (" DW_CFA_GNU_args_size: %ld\n", ul
);
9490 case DW_CFA_GNU_negative_offset_extended
:
9491 READ_ULEB (reg
, start
, block_end
);
9492 READ_SLEB (l
, start
, block_end
);
9494 if (frame_need_space (fc
, reg
) < 0)
9495 reg_prefix
= bad_reg
;
9496 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9497 printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n",
9498 reg_prefix
, regname (reg
, 0),
9499 (long)(l
* fc
->data_factor
));
9500 if (*reg_prefix
== '\0')
9502 fc
->col_type
[reg
] = DW_CFA_offset
;
9503 fc
->col_offset
[reg
] = l
* fc
->data_factor
;
9508 if (op
>= DW_CFA_lo_user
&& op
<= DW_CFA_hi_user
)
9509 printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op
);
9511 warn (_("Unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op
);
9516 /* Interpret the CFA - as long as it is not completely full of NOPs. */
9517 if (do_debug_frames_interp
&& ! all_nops
)
9518 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9520 if (fde_fc
.col_type
!= NULL
)
9522 free (fde_fc
.col_type
);
9523 fde_fc
.col_type
= NULL
;
9525 if (fde_fc
.col_offset
!= NULL
)
9527 free (fde_fc
.col_offset
);
9528 fde_fc
.col_offset
= NULL
;
9532 eh_addr_size
= saved_eh_addr_size
;
9537 while (remembered_state
!= NULL
)
9539 rs
= remembered_state
;
9540 remembered_state
= rs
->next
;
9541 free (rs
->col_type
);
9542 free (rs
->col_offset
);
9543 rs
->next
= NULL
; /* Paranoia. */
9547 while (chunks
!= NULL
)
9551 free (rs
->col_type
);
9552 free (rs
->col_offset
);
9553 rs
->next
= NULL
; /* Paranoia. */
9557 while (forward_refs
!= NULL
)
9560 forward_refs
= rs
->next
;
9561 free (rs
->col_type
);
9562 free (rs
->col_offset
);
9563 rs
->next
= NULL
; /* Paranoia. */
9573 display_debug_names (struct dwarf_section
*section
, void *file
)
9575 unsigned char *hdrptr
= section
->start
;
9576 dwarf_vma unit_length
;
9577 unsigned char *unit_start
;
9578 const unsigned char *const section_end
= section
->start
+ section
->size
;
9579 unsigned char *unit_end
;
9581 introduce (section
, false);
9583 load_debug_section_with_follow (str
, file
);
9585 for (; hdrptr
< section_end
; hdrptr
= unit_end
)
9587 unsigned int offset_size
;
9588 uint16_t dwarf_version
, padding
;
9589 uint32_t comp_unit_count
, local_type_unit_count
, foreign_type_unit_count
;
9590 uint64_t bucket_count
, name_count
, abbrev_table_size
;
9591 uint32_t augmentation_string_size
;
9593 bool augmentation_printable
;
9594 const char *augmentation_string
;
9597 unit_start
= hdrptr
;
9599 /* Get and check the length of the block. */
9600 SAFE_BYTE_GET_AND_INC (unit_length
, hdrptr
, 4, section_end
);
9602 if (unit_length
== 0xffffffff)
9604 /* This section is 64-bit DWARF. */
9605 SAFE_BYTE_GET_AND_INC (unit_length
, hdrptr
, 8, section_end
);
9611 if (unit_length
> (size_t) (section_end
- hdrptr
)
9612 || unit_length
< 2 + 2 + 4 * 7)
9615 warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
9617 (unsigned long) (unit_start
- section
->start
),
9618 dwarf_vmatoa ("x", unit_length
));
9621 unit_end
= hdrptr
+ unit_length
;
9623 /* Get and check the version number. */
9624 SAFE_BYTE_GET_AND_INC (dwarf_version
, hdrptr
, 2, unit_end
);
9625 printf (_("Version %ld\n"), (long) dwarf_version
);
9627 /* Prior versions did not exist, and future versions may not be
9628 backwards compatible. */
9629 if (dwarf_version
!= 5)
9631 warn (_("Only DWARF version 5 .debug_names "
9632 "is currently supported.\n"));
9636 SAFE_BYTE_GET_AND_INC (padding
, hdrptr
, 2, unit_end
);
9638 warn (_("Padding field of .debug_names must be 0 (found 0x%x)\n"),
9641 SAFE_BYTE_GET_AND_INC (comp_unit_count
, hdrptr
, 4, unit_end
);
9642 if (comp_unit_count
== 0)
9643 warn (_("Compilation unit count must be >= 1 in .debug_names\n"));
9645 SAFE_BYTE_GET_AND_INC (local_type_unit_count
, hdrptr
, 4, unit_end
);
9646 SAFE_BYTE_GET_AND_INC (foreign_type_unit_count
, hdrptr
, 4, unit_end
);
9647 SAFE_BYTE_GET_AND_INC (bucket_count
, hdrptr
, 4, unit_end
);
9648 SAFE_BYTE_GET_AND_INC (name_count
, hdrptr
, 4, unit_end
);
9649 SAFE_BYTE_GET_AND_INC (abbrev_table_size
, hdrptr
, 4, unit_end
);
9651 SAFE_BYTE_GET_AND_INC (augmentation_string_size
, hdrptr
, 4, unit_end
);
9652 if (augmentation_string_size
% 4 != 0)
9654 warn (_("Augmentation string length %u must be rounded up "
9655 "to a multiple of 4 in .debug_names.\n"),
9656 augmentation_string_size
);
9657 augmentation_string_size
+= (-augmentation_string_size
) & 3;
9659 if (augmentation_string_size
> (size_t) (unit_end
- hdrptr
))
9662 printf (_("Augmentation string:"));
9664 augmentation_printable
= true;
9665 augmentation_string
= (const char *) hdrptr
;
9667 for (i
= 0; i
< augmentation_string_size
; i
++)
9671 SAFE_BYTE_GET_AND_INC (uc
, hdrptr
, 1, unit_end
);
9672 printf (" %02x", uc
);
9674 if (uc
!= 0 && !ISPRINT (uc
))
9675 augmentation_printable
= false;
9678 if (augmentation_printable
)
9682 i
< augmentation_string_size
&& augmentation_string
[i
];
9684 putchar (augmentation_string
[i
]);
9689 printf (_("CU table:\n"));
9690 if (_mul_overflow (comp_unit_count
, offset_size
, &total
)
9691 || total
> (size_t) (unit_end
- hdrptr
))
9693 for (i
= 0; i
< comp_unit_count
; i
++)
9697 SAFE_BYTE_GET_AND_INC (cu_offset
, hdrptr
, offset_size
, unit_end
);
9698 printf (_("[%3u] 0x%lx\n"), i
, (unsigned long) cu_offset
);
9702 printf (_("TU table:\n"));
9703 if (_mul_overflow (local_type_unit_count
, offset_size
, &total
)
9704 || total
> (size_t) (unit_end
- hdrptr
))
9706 for (i
= 0; i
< local_type_unit_count
; i
++)
9710 SAFE_BYTE_GET_AND_INC (tu_offset
, hdrptr
, offset_size
, unit_end
);
9711 printf (_("[%3u] 0x%lx\n"), i
, (unsigned long) tu_offset
);
9715 printf (_("Foreign TU table:\n"));
9716 if (_mul_overflow (foreign_type_unit_count
, 8, &total
)
9717 || total
> (size_t) (unit_end
- hdrptr
))
9719 for (i
= 0; i
< foreign_type_unit_count
; i
++)
9723 SAFE_BYTE_GET_AND_INC (signature
, hdrptr
, 8, unit_end
);
9724 printf (_("[%3u] "), i
);
9725 print_dwarf_vma (signature
, 8);
9730 uint64_t xtra
= (bucket_count
* sizeof (uint32_t)
9731 + name_count
* (sizeof (uint32_t) + 2 * offset_size
)
9732 + abbrev_table_size
);
9733 if (xtra
> (size_t) (unit_end
- hdrptr
))
9735 warn (_("Entry pool offset (0x%lx) exceeds unit size 0x%lx "
9736 "for unit 0x%lx in the debug_names\n"),
9738 (long) (unit_end
- unit_start
),
9739 (long) (unit_start
- section
->start
));
9742 const uint32_t *const hash_table_buckets
= (uint32_t *) hdrptr
;
9743 hdrptr
+= bucket_count
* sizeof (uint32_t);
9744 const uint32_t *const hash_table_hashes
= (uint32_t *) hdrptr
;
9745 hdrptr
+= name_count
* sizeof (uint32_t);
9746 unsigned char *const name_table_string_offsets
= hdrptr
;
9747 hdrptr
+= name_count
* offset_size
;
9748 unsigned char *const name_table_entry_offsets
= hdrptr
;
9749 hdrptr
+= name_count
* offset_size
;
9750 unsigned char *const abbrev_table
= hdrptr
;
9751 hdrptr
+= abbrev_table_size
;
9752 const unsigned char *const abbrev_table_end
= hdrptr
;
9753 unsigned char *const entry_pool
= hdrptr
;
9755 size_t buckets_filled
= 0;
9757 for (bucketi
= 0; bucketi
< bucket_count
; bucketi
++)
9759 const uint32_t bucket
= hash_table_buckets
[bucketi
];
9764 printf (ngettext ("Used %zu of %lu bucket.\n",
9765 "Used %zu of %lu buckets.\n",
9767 buckets_filled
, (unsigned long) bucket_count
);
9769 uint32_t hash_prev
= 0;
9770 size_t hash_clash_count
= 0;
9771 size_t longest_clash
= 0;
9772 size_t this_length
= 0;
9774 for (hashi
= 0; hashi
< name_count
; hashi
++)
9776 const uint32_t hash_this
= hash_table_hashes
[hashi
];
9780 if (hash_prev
% bucket_count
== hash_this
% bucket_count
)
9784 longest_clash
= MAX (longest_clash
, this_length
);
9789 hash_prev
= hash_this
;
9791 printf (_("Out of %lu items there are %zu bucket clashes"
9792 " (longest of %zu entries).\n"),
9793 (unsigned long) name_count
, hash_clash_count
, longest_clash
);
9794 assert (name_count
== buckets_filled
+ hash_clash_count
);
9796 struct abbrev_lookup_entry
9798 dwarf_vma abbrev_tag
;
9799 unsigned char *abbrev_lookup_ptr
;
9801 struct abbrev_lookup_entry
*abbrev_lookup
= NULL
;
9802 size_t abbrev_lookup_used
= 0;
9803 size_t abbrev_lookup_allocated
= 0;
9805 unsigned char *abbrevptr
= abbrev_table
;
9808 dwarf_vma abbrev_tag
;
9810 READ_ULEB (abbrev_tag
, abbrevptr
, abbrev_table_end
);
9811 if (abbrev_tag
== 0)
9813 if (abbrev_lookup_used
== abbrev_lookup_allocated
)
9815 abbrev_lookup_allocated
= MAX (0x100,
9816 abbrev_lookup_allocated
* 2);
9817 abbrev_lookup
= xrealloc (abbrev_lookup
,
9818 (abbrev_lookup_allocated
9819 * sizeof (*abbrev_lookup
)));
9821 assert (abbrev_lookup_used
< abbrev_lookup_allocated
);
9822 struct abbrev_lookup_entry
*entry
;
9823 for (entry
= abbrev_lookup
;
9824 entry
< abbrev_lookup
+ abbrev_lookup_used
;
9826 if (entry
->abbrev_tag
== abbrev_tag
)
9828 warn (_("Duplicate abbreviation tag %lu "
9829 "in unit 0x%lx in the debug_names\n"),
9830 (long) abbrev_tag
, (long) (unit_start
- section
->start
));
9833 entry
= &abbrev_lookup
[abbrev_lookup_used
++];
9834 entry
->abbrev_tag
= abbrev_tag
;
9835 entry
->abbrev_lookup_ptr
= abbrevptr
;
9837 /* Skip DWARF tag. */
9838 SKIP_ULEB (abbrevptr
, abbrev_table_end
);
9841 dwarf_vma xindex
, form
;
9843 READ_ULEB (xindex
, abbrevptr
, abbrev_table_end
);
9844 READ_ULEB (form
, abbrevptr
, abbrev_table_end
);
9845 if (xindex
== 0 && form
== 0)
9850 printf (_("\nSymbol table:\n"));
9852 for (namei
= 0; namei
< name_count
; ++namei
)
9854 uint64_t string_offset
, entry_offset
;
9857 p
= name_table_string_offsets
+ namei
* offset_size
;
9858 SAFE_BYTE_GET (string_offset
, p
, offset_size
, unit_end
);
9859 p
= name_table_entry_offsets
+ namei
* offset_size
;
9860 SAFE_BYTE_GET (entry_offset
, p
, offset_size
, unit_end
);
9862 printf ("[%3u] #%08x %s:", namei
, hash_table_hashes
[namei
],
9863 fetch_indirect_string (string_offset
));
9865 unsigned char *entryptr
= entry_pool
+ entry_offset
;
9867 /* We need to scan first whether there is a single or multiple
9868 entries. TAGNO is -2 for the first entry, it is -1 for the
9869 initial tag read of the second entry, then it becomes 0 for the
9870 first entry for real printing etc. */
9872 /* Initialize it due to a false compiler warning. */
9873 dwarf_vma second_abbrev_tag
= -1;
9876 dwarf_vma abbrev_tag
;
9877 dwarf_vma dwarf_tag
;
9878 const struct abbrev_lookup_entry
*entry
;
9880 READ_ULEB (abbrev_tag
, entryptr
, unit_end
);
9883 second_abbrev_tag
= abbrev_tag
;
9885 entryptr
= entry_pool
+ entry_offset
;
9888 if (abbrev_tag
== 0)
9892 (tagno
== 0 && second_abbrev_tag
== 0 ? " " : "\n\t"),
9893 (unsigned long) abbrev_tag
);
9895 for (entry
= abbrev_lookup
;
9896 entry
< abbrev_lookup
+ abbrev_lookup_used
;
9898 if (entry
->abbrev_tag
== abbrev_tag
)
9900 if (entry
>= abbrev_lookup
+ abbrev_lookup_used
)
9902 warn (_("Undefined abbreviation tag %lu "
9903 "in unit 0x%lx in the debug_names\n"),
9905 (long) (unit_start
- section
->start
));
9908 abbrevptr
= entry
->abbrev_lookup_ptr
;
9909 READ_ULEB (dwarf_tag
, abbrevptr
, abbrev_table_end
);
9911 printf (" %s", get_TAG_name (dwarf_tag
));
9914 dwarf_vma xindex
, form
;
9916 READ_ULEB (xindex
, abbrevptr
, abbrev_table_end
);
9917 READ_ULEB (form
, abbrevptr
, abbrev_table_end
);
9918 if (xindex
== 0 && form
== 0)
9922 printf (" %s", get_IDX_name (xindex
));
9923 entryptr
= read_and_display_attr_value (0, form
, 0,
9924 unit_start
, entryptr
, unit_end
,
9926 dwarf_version
, NULL
,
9933 printf (_(" <no entries>"));
9937 free (abbrev_lookup
);
9944 display_debug_links (struct dwarf_section
* section
,
9945 void * file ATTRIBUTE_UNUSED
)
9947 const unsigned char * filename
;
9948 unsigned int filelen
;
9950 introduce (section
, false);
9952 /* The .gnu_debuglink section is formatted as:
9953 (c-string) Filename.
9954 (padding) If needed to reach a 4 byte boundary.
9955 (uint32_t) CRC32 value.
9957 The .gun_debugaltlink section is formatted as:
9958 (c-string) Filename.
9959 (binary) Build-ID. */
9961 filename
= section
->start
;
9962 filelen
= strnlen ((const char *) filename
, section
->size
);
9963 if (filelen
== section
->size
)
9965 warn (_("The debuglink filename is corrupt/missing\n"));
9969 printf (_(" Separate debug info file: %s\n"), filename
);
9971 if (startswith (section
->name
, ".gnu_debuglink"))
9974 unsigned int crc_offset
;
9976 crc_offset
= filelen
+ 1;
9977 crc_offset
= (crc_offset
+ 3) & ~3;
9978 if (crc_offset
+ 4 > section
->size
)
9980 warn (_("CRC offset missing/truncated\n"));
9984 crc32
= byte_get (filename
+ crc_offset
, 4);
9986 printf (_(" CRC value: %#x\n"), crc32
);
9988 if (crc_offset
+ 4 < section
->size
)
9990 warn (_("There are %#lx extraneous bytes at the end of the section\n"),
9991 (long)(section
->size
- (crc_offset
+ 4)));
9995 else /* startswith (section->name, ".gnu_debugaltlink") */
9997 const unsigned char * build_id
= section
->start
+ filelen
+ 1;
9998 bfd_size_type build_id_len
= section
->size
- (filelen
+ 1);
9999 bfd_size_type printed
;
10001 /* FIXME: Should we support smaller build-id notes ? */
10002 if (build_id_len
< 0x14)
10004 warn (_("Build-ID is too short (%#lx bytes)\n"), (long) build_id_len
);
10008 printed
= printf (_(" Build-ID (%#lx bytes):"), (long) build_id_len
);
10009 display_data (printed
, build_id
, build_id_len
);
10018 display_gdb_index (struct dwarf_section
*section
,
10019 void *file ATTRIBUTE_UNUSED
)
10021 unsigned char *start
= section
->start
;
10023 uint32_t cu_list_offset
, tu_list_offset
;
10024 uint32_t address_table_offset
, symbol_table_offset
, constant_pool_offset
;
10025 unsigned int cu_list_elements
, tu_list_elements
;
10026 unsigned int address_table_size
, symbol_table_slots
;
10027 unsigned char *cu_list
, *tu_list
;
10028 unsigned char *address_table
, *symbol_table
, *constant_pool
;
10031 /* The documentation for the format of this file is in gdb/dwarf2read.c. */
10033 introduce (section
, false);
10035 if (section
->size
< 6 * sizeof (uint32_t))
10037 warn (_("Truncated header in the %s section.\n"), section
->name
);
10041 version
= byte_get_little_endian (start
, 4);
10042 printf (_("Version %ld\n"), (long) version
);
10044 /* Prior versions are obsolete, and future versions may not be
10045 backwards compatible. */
10046 if (version
< 3 || version
> 8)
10048 warn (_("Unsupported version %lu.\n"), (unsigned long) version
);
10052 warn (_("The address table data in version 3 may be wrong.\n"));
10054 warn (_("Version 4 does not support case insensitive lookups.\n"));
10056 warn (_("Version 5 does not include inlined functions.\n"));
10058 warn (_("Version 6 does not include symbol attributes.\n"));
10059 /* Version 7 indices generated by Gold have bad type unit references,
10060 PR binutils/15021. But we don't know if the index was generated by
10061 Gold or not, so to avoid worrying users with gdb-generated indices
10062 we say nothing for version 7 here. */
10064 cu_list_offset
= byte_get_little_endian (start
+ 4, 4);
10065 tu_list_offset
= byte_get_little_endian (start
+ 8, 4);
10066 address_table_offset
= byte_get_little_endian (start
+ 12, 4);
10067 symbol_table_offset
= byte_get_little_endian (start
+ 16, 4);
10068 constant_pool_offset
= byte_get_little_endian (start
+ 20, 4);
10070 if (cu_list_offset
> section
->size
10071 || tu_list_offset
> section
->size
10072 || address_table_offset
> section
->size
10073 || symbol_table_offset
> section
->size
10074 || constant_pool_offset
> section
->size
)
10076 warn (_("Corrupt header in the %s section.\n"), section
->name
);
10080 /* PR 17531: file: 418d0a8a. */
10081 if (tu_list_offset
< cu_list_offset
)
10083 warn (_("TU offset (%x) is less than CU offset (%x)\n"),
10084 tu_list_offset
, cu_list_offset
);
10088 cu_list_elements
= (tu_list_offset
- cu_list_offset
) / 8;
10090 if (address_table_offset
< tu_list_offset
)
10092 warn (_("Address table offset (%x) is less than TU offset (%x)\n"),
10093 address_table_offset
, tu_list_offset
);
10097 tu_list_elements
= (address_table_offset
- tu_list_offset
) / 8;
10099 /* PR 17531: file: 18a47d3d. */
10100 if (symbol_table_offset
< address_table_offset
)
10102 warn (_("Symbol table offset (%x) is less then Address table offset (%x)\n"),
10103 symbol_table_offset
, address_table_offset
);
10107 address_table_size
= symbol_table_offset
- address_table_offset
;
10109 if (constant_pool_offset
< symbol_table_offset
)
10111 warn (_("Constant pool offset (%x) is less than symbol table offset (%x)\n"),
10112 constant_pool_offset
, symbol_table_offset
);
10116 symbol_table_slots
= (constant_pool_offset
- symbol_table_offset
) / 8;
10118 cu_list
= start
+ cu_list_offset
;
10119 tu_list
= start
+ tu_list_offset
;
10120 address_table
= start
+ address_table_offset
;
10121 symbol_table
= start
+ symbol_table_offset
;
10122 constant_pool
= start
+ constant_pool_offset
;
10124 if (address_table_offset
+ address_table_size
> section
->size
)
10126 warn (_("Address table extends beyond end of section.\n"));
10130 printf (_("\nCU table:\n"));
10131 for (i
= 0; i
< cu_list_elements
; i
+= 2)
10133 uint64_t cu_offset
= byte_get_little_endian (cu_list
+ i
* 8, 8);
10134 uint64_t cu_length
= byte_get_little_endian (cu_list
+ i
* 8 + 8, 8);
10136 printf (_("[%3u] 0x%lx - 0x%lx\n"), i
/ 2,
10137 (unsigned long) cu_offset
,
10138 (unsigned long) (cu_offset
+ cu_length
- 1));
10141 printf (_("\nTU table:\n"));
10142 for (i
= 0; i
< tu_list_elements
; i
+= 3)
10144 uint64_t tu_offset
= byte_get_little_endian (tu_list
+ i
* 8, 8);
10145 uint64_t type_offset
= byte_get_little_endian (tu_list
+ i
* 8 + 8, 8);
10146 uint64_t signature
= byte_get_little_endian (tu_list
+ i
* 8 + 16, 8);
10148 printf (_("[%3u] 0x%lx 0x%lx "), i
/ 3,
10149 (unsigned long) tu_offset
,
10150 (unsigned long) type_offset
);
10151 print_dwarf_vma (signature
, 8);
10155 printf (_("\nAddress table:\n"));
10156 for (i
= 0; i
< address_table_size
&& i
<= address_table_size
- (2 * 8 + 4);
10159 uint64_t low
= byte_get_little_endian (address_table
+ i
, 8);
10160 uint64_t high
= byte_get_little_endian (address_table
+ i
+ 8, 8);
10161 uint32_t cu_index
= byte_get_little_endian (address_table
+ i
+ 16, 4);
10163 print_dwarf_vma (low
, 8);
10164 print_dwarf_vma (high
, 8);
10165 printf (_("%lu\n"), (unsigned long) cu_index
);
10168 printf (_("\nSymbol table:\n"));
10169 for (i
= 0; i
< symbol_table_slots
; ++i
)
10171 uint32_t name_offset
= byte_get_little_endian (symbol_table
+ i
* 8, 4);
10172 uint32_t cu_vector_offset
= byte_get_little_endian (symbol_table
+ i
* 8 + 4, 4);
10173 uint32_t num_cus
, cu
;
10175 if (name_offset
!= 0
10176 || cu_vector_offset
!= 0)
10180 /* PR 17531: file: 5b7b07ad. */
10181 if (name_offset
>= section
->size
- constant_pool_offset
)
10183 printf (_("[%3u] <corrupt offset: %x>"), i
, name_offset
);
10184 warn (_("Corrupt name offset of 0x%x found for symbol table slot %d\n"),
10188 printf ("[%3u] %.*s:", i
,
10189 (int) (section
->size
- (constant_pool_offset
+ name_offset
)),
10190 constant_pool
+ name_offset
);
10192 if (section
->size
- constant_pool_offset
< 4
10193 || cu_vector_offset
> section
->size
- constant_pool_offset
- 4)
10195 printf (_("<invalid CU vector offset: %x>\n"), cu_vector_offset
);
10196 warn (_("Corrupt CU vector offset of 0x%x found for symbol table slot %d\n"),
10197 cu_vector_offset
, i
);
10201 num_cus
= byte_get_little_endian (constant_pool
+ cu_vector_offset
, 4);
10203 if ((uint64_t) num_cus
* 4 > section
->size
- (constant_pool_offset
10204 + cu_vector_offset
+ 4))
10206 printf ("<invalid number of CUs: %d>\n", num_cus
);
10207 warn (_("Invalid number of CUs (0x%x) for symbol table slot %d\n"),
10215 for (j
= 0; j
< num_cus
; ++j
)
10218 gdb_index_symbol_kind kind
;
10220 cu
= byte_get_little_endian (constant_pool
+ cu_vector_offset
+ 4 + j
* 4, 4);
10221 is_static
= GDB_INDEX_SYMBOL_STATIC_VALUE (cu
);
10222 kind
= GDB_INDEX_SYMBOL_KIND_VALUE (cu
);
10223 cu
= GDB_INDEX_CU_VALUE (cu
);
10224 /* Convert to TU number if it's for a type unit. */
10225 if (cu
>= cu_list_elements
/ 2)
10226 printf ("%cT%lu", num_cus
> 1 ? '\t' : ' ',
10227 (unsigned long) (cu
- cu_list_elements
/ 2));
10229 printf ("%c%lu", num_cus
> 1 ? '\t' : ' ', (unsigned long) cu
);
10231 printf (" [%s, %s]",
10232 is_static
? _("static") : _("global"),
10233 get_gdb_index_symbol_kind_name (kind
));
10245 /* Pre-allocate enough space for the CU/TU sets needed. */
10248 prealloc_cu_tu_list (unsigned int nshndx
)
10250 if (shndx_pool
== NULL
)
10252 shndx_pool_size
= nshndx
;
10253 shndx_pool_used
= 0;
10254 shndx_pool
= (unsigned int *) xcmalloc (shndx_pool_size
,
10255 sizeof (unsigned int));
10259 shndx_pool_size
= shndx_pool_used
+ nshndx
;
10260 shndx_pool
= (unsigned int *) xcrealloc (shndx_pool
, shndx_pool_size
,
10261 sizeof (unsigned int));
10266 add_shndx_to_cu_tu_entry (unsigned int shndx
)
10268 if (shndx_pool_used
>= shndx_pool_size
)
10270 error (_("Internal error: out of space in the shndx pool.\n"));
10273 shndx_pool
[shndx_pool_used
++] = shndx
;
10277 end_cu_tu_entry (void)
10279 if (shndx_pool_used
>= shndx_pool_size
)
10281 error (_("Internal error: out of space in the shndx pool.\n"));
10284 shndx_pool
[shndx_pool_used
++] = 0;
10287 /* Return the short name of a DWARF section given by a DW_SECT enumerator. */
10289 static const char *
10290 get_DW_SECT_short_name (unsigned int dw_sect
)
10292 static char buf
[16];
10298 case DW_SECT_TYPES
:
10300 case DW_SECT_ABBREV
:
10306 case DW_SECT_STR_OFFSETS
:
10308 case DW_SECT_MACINFO
:
10310 case DW_SECT_MACRO
:
10316 snprintf (buf
, sizeof (buf
), "%d", dw_sect
);
10320 /* Process a CU or TU index. If DO_DISPLAY is true, print the contents.
10321 These sections are extensions for Fission.
10322 See http://gcc.gnu.org/wiki/DebugFissionDWP. */
10325 process_cu_tu_index (struct dwarf_section
*section
, int do_display
)
10327 unsigned char *phdr
= section
->start
;
10328 unsigned char *limit
= phdr
+ section
->size
;
10329 unsigned char *phash
;
10330 unsigned char *pindex
;
10331 unsigned char *ppool
;
10332 unsigned int version
;
10333 unsigned int ncols
= 0;
10334 unsigned int nused
;
10335 unsigned int nslots
;
10338 dwarf_vma signature
;
10341 /* PR 17512: file: 002-168123-0.004. */
10344 warn (_("Section %s is empty\n"), section
->name
);
10347 /* PR 17512: file: 002-376-0.004. */
10348 if (section
->size
< 24)
10350 warn (_("Section %s is too small to contain a CU/TU header\n"),
10356 SAFE_BYTE_GET_AND_INC (version
, phash
, 4, limit
);
10358 SAFE_BYTE_GET_AND_INC (ncols
, phash
, 4, limit
);
10359 SAFE_BYTE_GET_AND_INC (nused
, phash
, 4, limit
);
10360 SAFE_BYTE_GET_AND_INC (nslots
, phash
, 4, limit
);
10362 pindex
= phash
+ (size_t) nslots
* 8;
10363 ppool
= pindex
+ (size_t) nslots
* 4;
10367 introduce (section
, false);
10369 printf (_(" Version: %u\n"), version
);
10371 printf (_(" Number of columns: %u\n"), ncols
);
10372 printf (_(" Number of used entries: %u\n"), nused
);
10373 printf (_(" Number of slots: %u\n\n"), nslots
);
10376 /* PR 17531: file: 45d69832. */
10377 if (_mul_overflow ((size_t) nslots
, 12, &total
)
10378 || total
> (size_t) (limit
- phash
))
10380 warn (ngettext ("Section %s is too small for %u slot\n",
10381 "Section %s is too small for %u slots\n",
10383 section
->name
, nslots
);
10390 prealloc_cu_tu_list ((limit
- ppool
) / 4);
10391 for (i
= 0; i
< nslots
; i
++)
10393 unsigned char *shndx_list
;
10394 unsigned int shndx
;
10396 SAFE_BYTE_GET (signature
, phash
, 8, limit
);
10397 if (signature
!= 0)
10399 SAFE_BYTE_GET (j
, pindex
, 4, limit
);
10400 shndx_list
= ppool
+ j
* 4;
10401 /* PR 17531: file: 705e010d. */
10402 if (shndx_list
< ppool
)
10404 warn (_("Section index pool located before start of section\n"));
10409 printf (_(" [%3d] Signature: 0x%s Sections: "),
10410 i
, dwarf_vmatoa ("x", signature
));
10413 if (shndx_list
>= limit
)
10415 warn (_("Section %s too small for shndx pool\n"),
10419 SAFE_BYTE_GET (shndx
, shndx_list
, 4, limit
);
10423 printf (" %d", shndx
);
10425 add_shndx_to_cu_tu_entry (shndx
);
10431 end_cu_tu_entry ();
10437 else if (version
== 2)
10440 unsigned int dw_sect
;
10441 unsigned char *ph
= phash
;
10442 unsigned char *pi
= pindex
;
10443 unsigned char *poffsets
= ppool
+ (size_t) ncols
* 4;
10444 unsigned char *psizes
= poffsets
+ (size_t) nused
* ncols
* 4;
10446 struct cu_tu_set
*this_set
= NULL
;
10448 unsigned char *prow
;
10451 is_tu_index
= strcmp (section
->name
, ".debug_tu_index") == 0;
10453 /* PR 17531: file: 0dd159bf.
10454 Check for integer overflow (can occur when size_t is 32-bit)
10455 with overlarge ncols or nused values. */
10457 || _mul_overflow ((size_t) ncols
, 4, &temp
)
10458 || _mul_overflow ((size_t) nused
+ 1, temp
, &total
)
10459 || total
> (size_t) (limit
- ppool
))
10461 warn (_("Section %s too small for offset and size tables\n"),
10468 printf (_(" Offset table\n"));
10469 printf (" slot %-16s ",
10470 is_tu_index
? _("signature") : _("dwo_id"));
10477 tu_sets
= xcalloc2 (nused
, sizeof (struct cu_tu_set
));
10478 this_set
= tu_sets
;
10483 cu_sets
= xcalloc2 (nused
, sizeof (struct cu_tu_set
));
10484 this_set
= cu_sets
;
10490 for (j
= 0; j
< ncols
; j
++)
10492 unsigned char *p
= ppool
+ j
* 4;
10493 SAFE_BYTE_GET (dw_sect
, p
, 4, limit
);
10494 printf (" %8s", get_DW_SECT_short_name (dw_sect
));
10499 for (i
= 0; i
< nslots
; i
++)
10501 SAFE_BYTE_GET (signature
, ph
, 8, limit
);
10503 SAFE_BYTE_GET (row
, pi
, 4, limit
);
10506 /* PR 17531: file: a05f6ab3. */
10509 warn (_("Row index (%u) is larger than number of used entries (%u)\n"),
10516 size_t num_copy
= sizeof (uint64_t);
10518 memcpy (&this_set
[row
- 1].signature
, ph
, num_copy
);
10521 prow
= poffsets
+ (row
- 1) * ncols
* 4;
10523 printf (_(" [%3d] 0x%s"),
10524 i
, dwarf_vmatoa ("x", signature
));
10525 for (j
= 0; j
< ncols
; j
++)
10527 unsigned char *p
= prow
+ j
* 4;
10528 SAFE_BYTE_GET (val
, p
, 4, limit
);
10530 printf (" %8d", val
);
10534 SAFE_BYTE_GET (dw_sect
, p
, 4, limit
);
10536 /* PR 17531: file: 10796eb3. */
10537 if (dw_sect
>= DW_SECT_MAX
)
10538 warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect
);
10540 this_set
[row
- 1].section_offsets
[dw_sect
] = val
;
10556 printf (_(" Size table\n"));
10557 printf (" slot %-16s ",
10558 is_tu_index
? _("signature") : _("dwo_id"));
10561 for (j
= 0; j
< ncols
; j
++)
10563 unsigned char *p
= ppool
+ j
* 4;
10564 SAFE_BYTE_GET (val
, p
, 4, limit
);
10566 printf (" %8s", get_DW_SECT_short_name (val
));
10572 for (i
= 0; i
< nslots
; i
++)
10574 SAFE_BYTE_GET (signature
, ph
, 8, limit
);
10576 SAFE_BYTE_GET (row
, pi
, 4, limit
);
10579 prow
= psizes
+ (row
- 1) * ncols
* 4;
10582 printf (_(" [%3d] 0x%s"),
10583 i
, dwarf_vmatoa ("x", signature
));
10585 for (j
= 0; j
< ncols
; j
++)
10587 unsigned char *p
= prow
+ j
* 4;
10588 SAFE_BYTE_GET (val
, p
, 4, limit
);
10590 printf (" %8d", val
);
10594 SAFE_BYTE_GET (dw_sect
, p
, 4, limit
);
10595 if (dw_sect
>= DW_SECT_MAX
)
10596 warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect
);
10598 this_set
[row
- 1].section_sizes
[dw_sect
] = val
;
10610 else if (do_display
)
10611 printf (_(" Unsupported version (%d)\n"), version
);
10619 static int cu_tu_indexes_read
= -1; /* Tri-state variable. */
10621 /* Load the CU and TU indexes if present. This will build a list of
10622 section sets that we can use to associate a .debug_info.dwo section
10623 with its associated .debug_abbrev.dwo section in a .dwp file. */
10626 load_cu_tu_indexes (void *file
)
10628 /* If we have already loaded (or tried to load) the CU and TU indexes
10629 then do not bother to repeat the task. */
10630 if (cu_tu_indexes_read
== -1)
10632 cu_tu_indexes_read
= true;
10634 if (load_debug_section_with_follow (dwp_cu_index
, file
))
10635 if (! process_cu_tu_index (&debug_displays
[dwp_cu_index
].section
, 0))
10636 cu_tu_indexes_read
= false;
10638 if (load_debug_section_with_follow (dwp_tu_index
, file
))
10639 if (! process_cu_tu_index (&debug_displays
[dwp_tu_index
].section
, 0))
10640 cu_tu_indexes_read
= false;
10643 return (bool) cu_tu_indexes_read
;
10646 /* Find the set of sections that includes section SHNDX. */
10649 find_cu_tu_set (void *file
, unsigned int shndx
)
10653 if (! load_cu_tu_indexes (file
))
10656 /* Find SHNDX in the shndx pool. */
10657 for (i
= 0; i
< shndx_pool_used
; i
++)
10658 if (shndx_pool
[i
] == shndx
)
10661 if (i
>= shndx_pool_used
)
10664 /* Now backup to find the first entry in the set. */
10665 while (i
> 0 && shndx_pool
[i
- 1] != 0)
10668 return shndx_pool
+ i
;
10671 /* Display a .debug_cu_index or .debug_tu_index section. */
10674 display_cu_index (struct dwarf_section
*section
, void *file ATTRIBUTE_UNUSED
)
10676 return process_cu_tu_index (section
, 1);
10680 display_debug_not_supported (struct dwarf_section
*section
,
10681 void *file ATTRIBUTE_UNUSED
)
10683 printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
10689 /* Like malloc, but takes two parameters like calloc.
10690 Verifies that the first parameter is not too large.
10691 Note: does *not* initialise the allocated memory to zero. */
10694 cmalloc (size_t nmemb
, size_t size
)
10696 /* Check for overflow. */
10697 if (nmemb
>= ~(size_t) 0 / size
)
10700 return xmalloc (nmemb
* size
);
10703 /* Like xmalloc, but takes two parameters like calloc.
10704 Verifies that the first parameter is not too large.
10705 Note: does *not* initialise the allocated memory to zero. */
10708 xcmalloc (size_t nmemb
, size_t size
)
10710 /* Check for overflow. */
10711 if (nmemb
>= ~(size_t) 0 / size
)
10714 _("Attempt to allocate an array with an excessive number of elements: 0x%lx\n"),
10719 return xmalloc (nmemb
* size
);
10722 /* Like xrealloc, but takes three parameters.
10723 Verifies that the second parameter is not too large.
10724 Note: does *not* initialise any new memory to zero. */
10727 xcrealloc (void *ptr
, size_t nmemb
, size_t size
)
10729 /* Check for overflow. */
10730 if (nmemb
>= ~(size_t) 0 / size
)
10732 error (_("Attempt to re-allocate an array with an excessive number of elements: 0x%lx\n"),
10737 return xrealloc (ptr
, nmemb
* size
);
10740 /* Like xcalloc, but verifies that the first parameter is not too large. */
10743 xcalloc2 (size_t nmemb
, size_t size
)
10745 /* Check for overflow. */
10746 if (nmemb
>= ~(size_t) 0 / size
)
10748 error (_("Attempt to allocate a zero'ed array with an excessive number of elements: 0x%lx\n"),
10753 return xcalloc (nmemb
, size
);
10756 static unsigned long
10757 calc_gnu_debuglink_crc32 (unsigned long crc
,
10758 const unsigned char * buf
,
10761 static const unsigned long crc32_table
[256] =
10763 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
10764 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
10765 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
10766 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
10767 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
10768 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
10769 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
10770 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
10771 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
10772 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
10773 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
10774 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
10775 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
10776 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
10777 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
10778 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
10779 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
10780 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
10781 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
10782 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
10783 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
10784 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
10785 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
10786 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
10787 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
10788 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
10789 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
10790 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
10791 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
10792 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
10793 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
10794 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
10795 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
10796 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
10797 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
10798 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
10799 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
10800 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
10801 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
10802 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
10803 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
10804 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
10805 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
10806 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
10807 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
10808 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
10809 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
10810 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
10811 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
10812 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
10813 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
10816 const unsigned char *end
;
10818 crc
= ~crc
& 0xffffffff;
10819 for (end
= buf
+ len
; buf
< end
; ++ buf
)
10820 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
10821 return ~crc
& 0xffffffff;
10824 typedef bool (*check_func_type
) (const char *, void *);
10825 typedef const char *(* parse_func_type
) (struct dwarf_section
*, void *);
10828 check_gnu_debuglink (const char * pathname
, void * crc_pointer
)
10830 static unsigned char buffer
[8 * 1024];
10832 bfd_size_type count
;
10833 unsigned long crc
= 0;
10836 sep_data
= open_debug_file (pathname
);
10837 if (sep_data
== NULL
)
10840 /* Yes - we are opening the file twice... */
10841 f
= fopen (pathname
, "rb");
10844 /* Paranoia: This should never happen. */
10845 close_debug_file (sep_data
);
10846 warn (_("Unable to reopen separate debug info file: %s\n"), pathname
);
10850 while ((count
= fread (buffer
, 1, sizeof (buffer
), f
)) > 0)
10851 crc
= calc_gnu_debuglink_crc32 (crc
, buffer
, count
);
10855 if (crc
!= * (unsigned long *) crc_pointer
)
10857 close_debug_file (sep_data
);
10858 warn (_("Separate debug info file %s found, but CRC does not match - ignoring\n"),
10866 static const char *
10867 parse_gnu_debuglink (struct dwarf_section
* section
, void * data
)
10870 unsigned int crc_offset
;
10871 unsigned long * crc32
= (unsigned long *) data
;
10873 /* The name is first.
10874 The CRC value is stored after the filename, aligned up to 4 bytes. */
10875 name
= (const char *) section
->start
;
10877 crc_offset
= strnlen (name
, section
->size
) + 1;
10878 if (crc_offset
== 1)
10880 crc_offset
= (crc_offset
+ 3) & ~3;
10881 if (crc_offset
+ 4 > section
->size
)
10884 * crc32
= byte_get (section
->start
+ crc_offset
, 4);
10889 check_gnu_debugaltlink (const char * filename
, void * data ATTRIBUTE_UNUSED
)
10891 void * sep_data
= open_debug_file (filename
);
10893 if (sep_data
== NULL
)
10896 /* FIXME: We should now extract the build-id in the separate file
10902 typedef struct build_id_data
10905 const unsigned char * data
;
10908 static const char *
10909 parse_gnu_debugaltlink (struct dwarf_section
* section
, void * data
)
10912 bfd_size_type namelen
;
10913 bfd_size_type id_len
;
10914 Build_id_data
* build_id_data
;
10916 /* The name is first.
10917 The build-id follows immediately, with no padding, up to the section's end. */
10919 name
= (const char *) section
->start
;
10920 namelen
= strnlen (name
, section
->size
) + 1;
10923 if (namelen
>= section
->size
)
10926 id_len
= section
->size
- namelen
;
10930 build_id_data
= (Build_id_data
*) data
;
10931 build_id_data
->len
= id_len
;
10932 build_id_data
->data
= section
->start
+ namelen
;
10938 add_separate_debug_file (const char * filename
, void * handle
)
10940 separate_info
* i
= xmalloc (sizeof * i
);
10942 i
->filename
= filename
;
10943 i
->handle
= handle
;
10944 i
->next
= first_separate_info
;
10945 first_separate_info
= i
;
10948 #if HAVE_LIBDEBUGINFOD
10949 /* Query debuginfod servers for the target debuglink or debugaltlink
10950 file. If successful, store the path of the file in filename and
10951 return TRUE, otherwise return FALSE. */
10954 debuginfod_fetch_separate_debug_info (struct dwarf_section
* section
,
10958 size_t build_id_len
;
10959 unsigned char * build_id
;
10961 if (strcmp (section
->uncompressed_name
, ".gnu_debuglink") == 0)
10963 /* Get the build-id of file. */
10964 build_id
= get_build_id (file
);
10967 else if (strcmp (section
->uncompressed_name
, ".gnu_debugaltlink") == 0)
10969 /* Get the build-id of the debugaltlink file. */
10970 unsigned int filelen
;
10972 filelen
= strnlen ((const char *)section
->start
, section
->size
);
10973 if (filelen
== section
->size
)
10974 /* Corrupt debugaltlink. */
10977 build_id
= section
->start
+ filelen
+ 1;
10978 build_id_len
= section
->size
- (filelen
+ 1);
10980 if (build_id_len
== 0)
10989 debuginfod_client
* client
;
10991 client
= debuginfod_begin ();
10992 if (client
== NULL
)
10995 /* Query debuginfod servers for the target file. If found its path
10996 will be stored in filename. */
10997 fd
= debuginfod_find_debuginfo (client
, build_id
, build_id_len
, filename
);
10998 debuginfod_end (client
);
11000 /* Only free build_id if we allocated space for a hex string
11001 in get_build_id (). */
11002 if (build_id_len
== 0)
11007 /* File successfully retrieved. Close fd since we want to
11008 use open_debug_file () on filename instead. */
11019 load_separate_debug_info (const char * main_filename
,
11020 struct dwarf_section
* xlink
,
11021 parse_func_type parse_func
,
11022 check_func_type check_func
,
11024 void * file ATTRIBUTE_UNUSED
)
11026 const char * separate_filename
;
11027 char * debug_filename
;
11029 size_t canon_dirlen
;
11032 if ((separate_filename
= parse_func (xlink
, func_data
)) == NULL
)
11034 warn (_("Corrupt debuglink section: %s\n"),
11035 xlink
->name
? xlink
->name
: xlink
->uncompressed_name
);
11039 /* Attempt to locate the separate file.
11040 This should duplicate the logic in bfd/opncls.c:find_separate_debug_file(). */
11042 canon_dir
= lrealpath (main_filename
);
11044 for (canon_dirlen
= strlen (canon_dir
); canon_dirlen
> 0; canon_dirlen
--)
11045 if (IS_DIR_SEPARATOR (canon_dir
[canon_dirlen
- 1]))
11047 canon_dir
[canon_dirlen
] = '\0';
11050 #define DEBUGDIR "/lib/debug"
11052 #ifndef EXTRA_DEBUG_ROOT1
11053 #define EXTRA_DEBUG_ROOT1 "/usr/lib/debug"
11055 #ifndef EXTRA_DEBUG_ROOT2
11056 #define EXTRA_DEBUG_ROOT2 "/usr/lib/debug/usr"
11059 debug_filename
= (char *) malloc (strlen (DEBUGDIR
) + 1
11061 + strlen (".debug/")
11062 #ifdef EXTRA_DEBUG_ROOT1
11063 + strlen (EXTRA_DEBUG_ROOT1
)
11065 #ifdef EXTRA_DEBUG_ROOT2
11066 + strlen (EXTRA_DEBUG_ROOT2
)
11068 + strlen (separate_filename
)
11070 if (debug_filename
== NULL
)
11072 warn (_("Out of memory"));
11077 /* First try in the current directory. */
11078 sprintf (debug_filename
, "%s", separate_filename
);
11079 if (check_func (debug_filename
, func_data
))
11082 /* Then try in a subdirectory called .debug. */
11083 sprintf (debug_filename
, ".debug/%s", separate_filename
);
11084 if (check_func (debug_filename
, func_data
))
11087 /* Then try in the same directory as the original file. */
11088 sprintf (debug_filename
, "%s%s", canon_dir
, separate_filename
);
11089 if (check_func (debug_filename
, func_data
))
11092 /* And the .debug subdirectory of that directory. */
11093 sprintf (debug_filename
, "%s.debug/%s", canon_dir
, separate_filename
);
11094 if (check_func (debug_filename
, func_data
))
11097 #ifdef EXTRA_DEBUG_ROOT1
11098 /* Try the first extra debug file root. */
11099 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT1
, separate_filename
);
11100 if (check_func (debug_filename
, func_data
))
11103 /* Try the first extra debug file root. */
11104 sprintf (debug_filename
, "%s/%s/%s", EXTRA_DEBUG_ROOT1
, canon_dir
, separate_filename
);
11105 if (check_func (debug_filename
, func_data
))
11109 #ifdef EXTRA_DEBUG_ROOT2
11110 /* Try the second extra debug file root. */
11111 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT2
, separate_filename
);
11112 if (check_func (debug_filename
, func_data
))
11116 /* Then try in the global debug_filename directory. */
11117 strcpy (debug_filename
, DEBUGDIR
);
11118 dirlen
= strlen (DEBUGDIR
) - 1;
11119 if (dirlen
> 0 && DEBUGDIR
[dirlen
] != '/')
11120 strcat (debug_filename
, "/");
11121 strcat (debug_filename
, (const char *) separate_filename
);
11123 if (check_func (debug_filename
, func_data
))
11126 #if HAVE_LIBDEBUGINFOD
11128 char * tmp_filename
;
11130 if (debuginfod_fetch_separate_debug_info (xlink
,
11134 /* File successfully downloaded from server, replace
11135 debug_filename with the file's path. */
11136 free (debug_filename
);
11137 debug_filename
= tmp_filename
;
11143 if (do_debug_links
)
11145 /* Failed to find the file. */
11146 warn (_("could not find separate debug file '%s'\n"),
11147 separate_filename
);
11148 warn (_("tried: %s\n"), debug_filename
);
11150 #ifdef EXTRA_DEBUG_ROOT2
11151 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT2
,
11152 separate_filename
);
11153 warn (_("tried: %s\n"), debug_filename
);
11156 #ifdef EXTRA_DEBUG_ROOT1
11157 sprintf (debug_filename
, "%s/%s/%s", EXTRA_DEBUG_ROOT1
,
11158 canon_dir
, separate_filename
);
11159 warn (_("tried: %s\n"), debug_filename
);
11161 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT1
,
11162 separate_filename
);
11163 warn (_("tried: %s\n"), debug_filename
);
11166 sprintf (debug_filename
, "%s.debug/%s", canon_dir
,
11167 separate_filename
);
11168 warn (_("tried: %s\n"), debug_filename
);
11170 sprintf (debug_filename
, "%s%s", canon_dir
, separate_filename
);
11171 warn (_("tried: %s\n"), debug_filename
);
11173 sprintf (debug_filename
, ".debug/%s", separate_filename
);
11174 warn (_("tried: %s\n"), debug_filename
);
11176 sprintf (debug_filename
, "%s", separate_filename
);
11177 warn (_("tried: %s\n"), debug_filename
);
11179 #if HAVE_LIBDEBUGINFOD
11181 char *urls
= getenv (DEBUGINFOD_URLS_ENV_VAR
);
11185 warn (_("tried: DEBUGINFOD_URLS=%s\n"), urls
);
11191 free (debug_filename
);
11197 void * debug_handle
;
11199 /* Now open the file.... */
11200 if ((debug_handle
= open_debug_file (debug_filename
)) == NULL
)
11202 warn (_("failed to open separate debug file: %s\n"), debug_filename
);
11203 free (debug_filename
);
11207 /* FIXME: We do not check to see if there are any other separate debug info
11208 files that would also match. */
11210 if (do_debug_links
)
11211 printf (_("\n%s: Found separate debug info file: %s\n"), main_filename
, debug_filename
);
11212 add_separate_debug_file (debug_filename
, debug_handle
);
11214 /* Do not free debug_filename - it might be referenced inside
11215 the structure returned by open_debug_file(). */
11216 return debug_handle
;
11219 /* Attempt to load a separate dwarf object file. */
11222 load_dwo_file (const char * main_filename
, const char * name
, const char * dir
, const char * id ATTRIBUTE_UNUSED
)
11224 char * separate_filename
;
11225 void * separate_handle
;
11227 if (IS_ABSOLUTE_PATH (name
))
11228 separate_filename
= strdup (name
);
11230 /* FIXME: Skip adding / if dwo_dir ends in /. */
11231 separate_filename
= concat (dir
, "/", name
, NULL
);
11232 if (separate_filename
== NULL
)
11234 warn (_("Out of memory allocating dwo filename\n"));
11238 if ((separate_handle
= open_debug_file (separate_filename
)) == NULL
)
11240 warn (_("Unable to load dwo file: %s\n"), separate_filename
);
11241 free (separate_filename
);
11245 /* FIXME: We should check the dwo_id. */
11247 printf (_("%s: Found separate debug object file: %s\n\n"), main_filename
, separate_filename
);
11249 add_separate_debug_file (separate_filename
, separate_handle
);
11250 /* Note - separate_filename will be freed in free_debug_memory(). */
11251 return separate_handle
;
11255 load_debug_sup_file (const char * main_filename
, void * file
)
11257 if (! load_debug_section (debug_sup
, file
))
11258 return; /* No .debug_sup section. */
11260 struct dwarf_section
* section
;
11261 section
= & debug_displays
[debug_sup
].section
;
11262 assert (section
!= NULL
);
11264 if (section
->start
== NULL
|| section
->size
< 5)
11266 warn (_(".debug_sup section is corrupt/empty\n"));
11270 if (section
->start
[2] != 0)
11271 return; /* This is a supplementary file. */
11273 const char * filename
= (const char *) section
->start
+ 3;
11274 if (strnlen (filename
, section
->size
- 3) == section
->size
- 3)
11276 warn (_("filename in .debug_sup section is corrupt\n"));
11280 if (filename
[0] != '/' && strchr (main_filename
, '/'))
11285 new_len
= asprintf (& new_name
, "%.*s/%s",
11286 (int) (strrchr (main_filename
, '/') - main_filename
),
11291 warn (_("unable to construct path for supplementary debug file"));
11296 filename
= new_name
;
11300 /* PR 27796: Make sure that we pass a filename that can be free'd to
11301 add_separate_debug_file(). */
11302 filename
= strdup (filename
);
11303 if (filename
== NULL
)
11305 warn (_("out of memory constructing filename for .debug_sup link\n"));
11310 void * handle
= open_debug_file (filename
);
11311 if (handle
== NULL
)
11313 warn (_("unable to open file '%s' referenced from .debug_sup section\n"), filename
);
11314 free ((void *) filename
);
11318 printf (_("%s: Found supplementary debug file: %s\n\n"), main_filename
, filename
);
11320 /* FIXME: Compare the checksums, if present. */
11321 add_separate_debug_file (filename
, handle
);
11324 /* Load a debuglink section and/or a debugaltlink section, if either are present.
11325 Recursively check the loaded files for more of these sections.
11326 Also follow any links in .debug_sup sections.
11327 FIXME: Should also check for DWO_* entries in the newly loaded files. */
11330 check_for_and_load_links (void * file
, const char * filename
)
11332 void * handle
= NULL
;
11334 if (load_debug_section (gnu_debugaltlink
, file
))
11336 Build_id_data build_id_data
;
11338 handle
= load_separate_debug_info (filename
,
11339 & debug_displays
[gnu_debugaltlink
].section
,
11340 parse_gnu_debugaltlink
,
11341 check_gnu_debugaltlink
,
11346 assert (handle
== first_separate_info
->handle
);
11347 check_for_and_load_links (first_separate_info
->handle
,
11348 first_separate_info
->filename
);
11352 if (load_debug_section (gnu_debuglink
, file
))
11354 unsigned long crc32
;
11356 handle
= load_separate_debug_info (filename
,
11357 & debug_displays
[gnu_debuglink
].section
,
11358 parse_gnu_debuglink
,
11359 check_gnu_debuglink
,
11364 assert (handle
== first_separate_info
->handle
);
11365 check_for_and_load_links (first_separate_info
->handle
,
11366 first_separate_info
->filename
);
11370 load_debug_sup_file (filename
, file
);
11373 /* Load the separate debug info file(s) attached to FILE, if any exist.
11374 Returns TRUE if any were found, FALSE otherwise.
11375 If TRUE is returned then the linked list starting at first_separate_info
11376 will be populated with open file handles. */
11379 load_separate_debug_files (void * file
, const char * filename
)
11381 /* Skip this operation if we are not interested in debug links. */
11382 if (! do_follow_links
&& ! do_debug_links
)
11385 /* See if there are any dwo links. */
11386 if (load_debug_section (str
, file
)
11387 && load_debug_section (abbrev
, file
)
11388 && load_debug_section (info
, file
))
11392 if (process_debug_info (& debug_displays
[info
].section
, file
, abbrev
,
11395 bool introduced
= false;
11397 const char *dir
= NULL
;
11398 const char *id
= NULL
;
11399 const char *name
= NULL
;
11401 for (dwinfo
= first_dwo_info
; dwinfo
!= NULL
; dwinfo
= dwinfo
->next
)
11403 /* Accumulate NAME, DIR and ID fields. */
11404 switch (dwinfo
->type
)
11408 warn (_("Multiple DWO_NAMEs encountered for the same CU\n"));
11409 name
= dwinfo
->value
;
11413 /* There can be multiple DW_AT_comp_dir entries in a CU,
11414 so do not complain. */
11415 dir
= dwinfo
->value
;
11420 warn (_("multiple DWO_IDs encountered for the same CU\n"));
11421 id
= dwinfo
->value
;
11425 error (_("Unexpected DWO INFO type"));
11429 /* If we have reached the end of our list, or we are changing
11430 CUs, then display the information that we have accumulated
11433 && (dwinfo
->next
== NULL
11434 || dwinfo
->next
->cu_offset
!= dwinfo
->cu_offset
))
11436 if (do_debug_links
)
11440 printf (_("The %s section contains link(s) to dwo file(s):\n\n"),
11441 debug_displays
[info
].section
.uncompressed_name
);
11445 printf (_(" Name: %s\n"), name
);
11446 printf (_(" Directory: %s\n"), dir
? dir
: _("<not-found>"));
11448 display_data (printf (_(" ID: ")), (unsigned char *) id
, 8);
11450 printf (_(" ID: <not specified>\n"));
11454 if (do_follow_links
)
11455 load_dwo_file (filename
, name
, dir
, id
);
11457 name
= dir
= id
= NULL
;
11463 if (! do_follow_links
)
11464 /* The other debug links will be displayed by display_debug_links()
11465 so we do not need to do any further processing here. */
11468 /* FIXME: We do not check for the presence of both link sections in the same file. */
11469 /* FIXME: We do not check for the presence of multiple, same-name debuglink sections. */
11470 /* FIXME: We do not check for the presence of a dwo link as well as a debuglink. */
11472 check_for_and_load_links (file
, filename
);
11473 if (first_separate_info
!= NULL
)
11476 do_follow_links
= 0;
11481 free_debug_memory (void)
11485 free_all_abbrevs ();
11487 free (cu_abbrev_map
);
11488 cu_abbrev_map
= NULL
;
11489 next_free_abbrev_map_entry
= 0;
11493 shndx_pool_size
= 0;
11494 shndx_pool_used
= 0;
11502 memset (level_type_signed
, 0, sizeof level_type_signed
);
11503 cu_tu_indexes_read
= -1;
11505 for (i
= 0; i
< max
; i
++)
11506 free_debug_section ((enum dwarf_section_display_enum
) i
);
11508 if (debug_information
!= NULL
)
11510 for (i
= 0; i
< alloc_num_debug_info_entries
; i
++)
11512 if (debug_information
[i
].max_loc_offsets
)
11514 free (debug_information
[i
].loc_offsets
);
11515 free (debug_information
[i
].have_frame_base
);
11517 if (debug_information
[i
].max_range_lists
)
11518 free (debug_information
[i
].range_lists
);
11520 free (debug_information
);
11521 debug_information
= NULL
;
11522 alloc_num_debug_info_entries
= num_debug_info_entries
= 0;
11526 separate_info
* next
;
11528 for (d
= first_separate_info
; d
!= NULL
; d
= next
)
11530 close_debug_file (d
->handle
);
11531 free ((void *) d
->filename
);
11535 first_separate_info
= NULL
;
11541 dwarf_select_sections_by_names (const char *names
)
11545 const char * option
;
11549 debug_dump_long_opts
;
11551 static const debug_dump_long_opts opts_table
[] =
11553 /* Please keep this table alpha- sorted. */
11554 { "Ranges", & do_debug_ranges
, 1 },
11555 { "abbrev", & do_debug_abbrevs
, 1 },
11556 { "addr", & do_debug_addr
, 1 },
11557 { "aranges", & do_debug_aranges
, 1 },
11558 { "cu_index", & do_debug_cu_index
, 1 },
11559 { "decodedline", & do_debug_lines
, FLAG_DEBUG_LINES_DECODED
},
11560 { "follow-links", & do_follow_links
, 1 },
11561 { "frames", & do_debug_frames
, 1 },
11562 { "frames-interp", & do_debug_frames_interp
, 1 },
11563 /* The special .gdb_index section. */
11564 { "gdb_index", & do_gdb_index
, 1 },
11565 { "info", & do_debug_info
, 1 },
11566 { "line", & do_debug_lines
, FLAG_DEBUG_LINES_RAW
}, /* For backwards compatibility. */
11567 { "links", & do_debug_links
, 1 },
11568 { "loc", & do_debug_loc
, 1 },
11569 { "macro", & do_debug_macinfo
, 1 },
11570 { "no-follow-links", & do_follow_links
, 0 },
11571 { "pubnames", & do_debug_pubnames
, 1 },
11572 { "pubtypes", & do_debug_pubtypes
, 1 },
11573 /* This entry is for compatibility
11574 with earlier versions of readelf. */
11575 { "ranges", & do_debug_aranges
, 1 },
11576 { "rawline", & do_debug_lines
, FLAG_DEBUG_LINES_RAW
},
11577 { "str", & do_debug_str
, 1 },
11578 { "str-offsets", & do_debug_str_offsets
, 1 },
11579 /* These trace_* sections are used by Itanium VMS. */
11580 { "trace_abbrev", & do_trace_abbrevs
, 1 },
11581 { "trace_aranges", & do_trace_aranges
, 1 },
11582 { "trace_info", & do_trace_info
, 1 },
11591 const debug_dump_long_opts
* entry
;
11593 for (entry
= opts_table
; entry
->option
; entry
++)
11595 size_t len
= strlen (entry
->option
);
11597 if (strncmp (p
, entry
->option
, len
) == 0
11598 && (p
[len
] == ',' || p
[len
] == '\0'))
11600 * entry
->variable
= entry
->val
;
11602 /* The --debug-dump=frames-interp option also
11603 enables the --debug-dump=frames option. */
11604 if (do_debug_frames_interp
)
11605 do_debug_frames
= 1;
11612 if (entry
->option
== NULL
)
11614 warn (_("Unrecognized debug option '%s'\n"), p
);
11615 p
= strchr (p
, ',');
11626 dwarf_select_sections_by_letters (const char *letters
)
11628 unsigned int lindex
= 0;
11630 while (letters
[lindex
])
11631 switch (letters
[lindex
++])
11633 case 'A': do_debug_addr
= 1; break;
11634 case 'a': do_debug_abbrevs
= 1; break;
11635 case 'c': do_debug_cu_index
= 1; break;
11636 case 'F': do_debug_frames_interp
= 1; /* Fall through. */
11637 case 'f': do_debug_frames
= 1; break;
11638 case 'g': do_gdb_index
= 1; break;
11639 case 'i': do_debug_info
= 1; break;
11640 case 'K': do_follow_links
= 1; break;
11641 case 'N': do_follow_links
= 0; break;
11642 case 'k': do_debug_links
= 1; break;
11643 case 'l': do_debug_lines
|= FLAG_DEBUG_LINES_RAW
; break;
11644 case 'L': do_debug_lines
|= FLAG_DEBUG_LINES_DECODED
; break;
11645 case 'm': do_debug_macinfo
= 1; break;
11646 case 'O': do_debug_str_offsets
= 1; break;
11647 case 'o': do_debug_loc
= 1; break;
11648 case 'p': do_debug_pubnames
= 1; break;
11649 case 'R': do_debug_ranges
= 1; break;
11650 case 'r': do_debug_aranges
= 1; break;
11651 case 's': do_debug_str
= 1; break;
11652 case 'T': do_trace_aranges
= 1; break;
11653 case 't': do_debug_pubtypes
= 1; break;
11654 case 'U': do_trace_info
= 1; break;
11655 case 'u': do_trace_abbrevs
= 1; break;
11658 warn (_("Unrecognized debug option '%s'\n"), letters
);
11664 dwarf_select_sections_all (void)
11667 do_debug_abbrevs
= 1;
11668 do_debug_lines
= FLAG_DEBUG_LINES_RAW
;
11669 do_debug_pubnames
= 1;
11670 do_debug_pubtypes
= 1;
11671 do_debug_aranges
= 1;
11672 do_debug_ranges
= 1;
11673 do_debug_frames
= 1;
11674 do_debug_macinfo
= 1;
11679 do_trace_abbrevs
= 1;
11680 do_trace_aranges
= 1;
11682 do_debug_cu_index
= 1;
11683 do_follow_links
= 1;
11684 do_debug_links
= 1;
11685 do_debug_str_offsets
= 1;
11688 #define NO_ABBREVS NULL, NULL, NULL, 0, 0, 0, NULL, 0
11689 #define ABBREV(N) NULL, NULL, NULL, 0, 0, N, NULL, 0
11691 /* N.B. The order here must match the order in section_display_enum. */
11693 struct dwarf_section_display debug_displays
[] =
11695 { { ".debug_abbrev", ".zdebug_abbrev", ".dwabrev", NO_ABBREVS
}, display_debug_abbrev
, &do_debug_abbrevs
, false },
11696 { { ".debug_aranges", ".zdebug_aranges", ".dwarnge", NO_ABBREVS
}, display_debug_aranges
, &do_debug_aranges
, true },
11697 { { ".debug_frame", ".zdebug_frame", ".dwframe", NO_ABBREVS
}, display_debug_frames
, &do_debug_frames
, true },
11698 { { ".debug_info", ".zdebug_info", ".dwinfo", ABBREV (abbrev
)}, display_debug_info
, &do_debug_info
, true },
11699 { { ".debug_line", ".zdebug_line", ".dwline", NO_ABBREVS
}, display_debug_lines
, &do_debug_lines
, true },
11700 { { ".debug_pubnames", ".zdebug_pubnames", ".dwpbnms", NO_ABBREVS
}, display_debug_pubnames
, &do_debug_pubnames
, false },
11701 { { ".debug_gnu_pubnames", ".zdebug_gnu_pubnames", "", NO_ABBREVS
}, display_debug_gnu_pubnames
, &do_debug_pubnames
, false },
11702 { { ".eh_frame", "", "", NO_ABBREVS
}, display_debug_frames
, &do_debug_frames
, true },
11703 { { ".debug_macinfo", ".zdebug_macinfo", "", NO_ABBREVS
}, display_debug_macinfo
, &do_debug_macinfo
, false },
11704 { { ".debug_macro", ".zdebug_macro", ".dwmac", NO_ABBREVS
}, display_debug_macro
, &do_debug_macinfo
, true },
11705 { { ".debug_str", ".zdebug_str", ".dwstr", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, false },
11706 { { ".debug_line_str", ".zdebug_line_str", "", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, false },
11707 { { ".debug_loc", ".zdebug_loc", ".dwloc", NO_ABBREVS
}, display_debug_loc
, &do_debug_loc
, true },
11708 { { ".debug_loclists", ".zdebug_loclists", "", NO_ABBREVS
}, display_debug_loc
, &do_debug_loc
, true },
11709 { { ".debug_pubtypes", ".zdebug_pubtypes", ".dwpbtyp", NO_ABBREVS
}, display_debug_pubnames
, &do_debug_pubtypes
, false },
11710 { { ".debug_gnu_pubtypes", ".zdebug_gnu_pubtypes", "", NO_ABBREVS
}, display_debug_gnu_pubnames
, &do_debug_pubtypes
, false },
11711 { { ".debug_ranges", ".zdebug_ranges", ".dwrnges", NO_ABBREVS
}, display_debug_ranges
, &do_debug_ranges
, true },
11712 { { ".debug_rnglists", ".zdebug_rnglists", "", NO_ABBREVS
}, display_debug_ranges
, &do_debug_ranges
, true },
11713 { { ".debug_static_func", ".zdebug_static_func", "", NO_ABBREVS
}, display_debug_not_supported
, NULL
, false },
11714 { { ".debug_static_vars", ".zdebug_static_vars", "", NO_ABBREVS
}, display_debug_not_supported
, NULL
, false },
11715 { { ".debug_types", ".zdebug_types", "", ABBREV (abbrev
) }, display_debug_types
, &do_debug_info
, true },
11716 { { ".debug_weaknames", ".zdebug_weaknames", "", NO_ABBREVS
}, display_debug_not_supported
, NULL
, false },
11717 { { ".gdb_index", "", "", NO_ABBREVS
}, display_gdb_index
, &do_gdb_index
, false },
11718 { { ".debug_names", "", "", NO_ABBREVS
}, display_debug_names
, &do_gdb_index
, false },
11719 { { ".trace_info", "", "", ABBREV (trace_abbrev
) }, display_trace_info
, &do_trace_info
, true },
11720 { { ".trace_abbrev", "", "", NO_ABBREVS
}, display_debug_abbrev
, &do_trace_abbrevs
, false },
11721 { { ".trace_aranges", "", "", NO_ABBREVS
}, display_debug_aranges
, &do_trace_aranges
, false },
11722 { { ".debug_info.dwo", ".zdebug_info.dwo", "", ABBREV (abbrev_dwo
) }, display_debug_info
, &do_debug_info
, true },
11723 { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", "", NO_ABBREVS
}, display_debug_abbrev
, &do_debug_abbrevs
, false },
11724 { { ".debug_types.dwo", ".zdebug_types.dwo", "", ABBREV (abbrev_dwo
) }, display_debug_types
, &do_debug_info
, true },
11725 { { ".debug_line.dwo", ".zdebug_line.dwo", "", NO_ABBREVS
}, display_debug_lines
, &do_debug_lines
, true },
11726 { { ".debug_loc.dwo", ".zdebug_loc.dwo", "", NO_ABBREVS
}, display_debug_loc
, &do_debug_loc
, true },
11727 { { ".debug_macro.dwo", ".zdebug_macro.dwo", "", NO_ABBREVS
}, display_debug_macro
, &do_debug_macinfo
, true },
11728 { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", "", NO_ABBREVS
}, display_debug_macinfo
, &do_debug_macinfo
, false },
11729 { { ".debug_str.dwo", ".zdebug_str.dwo", "", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, true },
11730 { { ".debug_str_offsets", ".zdebug_str_offsets", "", NO_ABBREVS
}, display_debug_str_offsets
, &do_debug_str_offsets
, true },
11731 { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", "", NO_ABBREVS
}, display_debug_str_offsets
, &do_debug_str_offsets
, true },
11732 { { ".debug_addr", ".zdebug_addr", "", NO_ABBREVS
}, display_debug_addr
, &do_debug_addr
, true },
11733 { { ".debug_cu_index", "", "", NO_ABBREVS
}, display_cu_index
, &do_debug_cu_index
, false },
11734 { { ".debug_tu_index", "", "", NO_ABBREVS
}, display_cu_index
, &do_debug_cu_index
, false },
11735 { { ".gnu_debuglink", "", "", NO_ABBREVS
}, display_debug_links
, &do_debug_links
, false },
11736 { { ".gnu_debugaltlink", "", "", NO_ABBREVS
}, display_debug_links
, &do_debug_links
, false },
11737 { { ".debug_sup", "", "", NO_ABBREVS
}, display_debug_sup
, &do_debug_links
, false },
11738 /* Separate debug info files can containt their own .debug_str section,
11739 and this might be in *addition* to a .debug_str section already present
11740 in the main file. Hence we need to have two entries for .debug_str. */
11741 { { ".debug_str", ".zdebug_str", "", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, false },
11744 /* A static assertion. */
11745 extern int debug_displays_assert
[ARRAY_SIZE (debug_displays
) == max
? 1 : -1];