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 const struct dwarf_section
*section
,
2070 unsigned long *abbrev_num_return
,
2071 unsigned char **data_return
,
2072 abbrev_map
**map_return
)
2074 unsigned long abbrev_number
;
2076 abbrev_entry
* entry
;
2077 unsigned char * data
;
2079 if (abbrev_num_return
!= NULL
)
2080 * abbrev_num_return
= 0;
2081 if (data_return
!= NULL
)
2082 * data_return
= NULL
;
2086 case DW_FORM_GNU_ref_alt
:
2087 case DW_FORM_ref_sig8
:
2088 /* FIXME: We are unable to handle this form at the moment. */
2091 case DW_FORM_ref_addr
:
2092 if (uvalue
>= section
->size
)
2094 warn (_("Unable to resolve ref_addr form: uvalue %lx > section size %lx (%s)\n"),
2095 uvalue
, (long) section
->size
, section
->name
);
2100 case DW_FORM_ref_sup4
:
2101 case DW_FORM_ref_sup8
:
2108 case DW_FORM_ref_udata
:
2109 if (uvalue
+ cu_offset
> section
->size
)
2111 warn (_("Unable to resolve ref form: uvalue %lx + cu_offset %lx > section size %lx\n"),
2112 uvalue
, (long) cu_offset
, (long) section
->size
);
2115 uvalue
+= cu_offset
;
2118 /* FIXME: Are there other DW_FORMs that can be used by types ? */
2121 warn (_("Unexpected form %lx encountered whilst finding abbreviation for type\n"), form
);
2125 data
= (unsigned char *) section
->start
+ uvalue
;
2126 map
= find_abbrev_map_by_offset (uvalue
);
2130 warn (_("Unable to find abbreviations for CU offset %#lx\n"), uvalue
);
2133 if (map
->list
== NULL
)
2135 warn (_("Empty abbreviation list encountered for CU offset %lx\n"), uvalue
);
2139 if (map_return
!= NULL
)
2141 if (form
== DW_FORM_ref_addr
)
2147 READ_ULEB (abbrev_number
, data
, section
->start
+ section
->size
);
2149 for (entry
= map
->list
->first_abbrev
; entry
!= NULL
; entry
= entry
->next
)
2150 if (entry
->number
== abbrev_number
)
2153 if (abbrev_num_return
!= NULL
)
2154 * abbrev_num_return
= abbrev_number
;
2156 if (data_return
!= NULL
)
2157 * data_return
= data
;
2160 warn (_("Unable to find entry for abbreviation %lu\n"), abbrev_number
);
2165 /* Return IS_SIGNED set to TRUE if the type using abbreviation ENTRY
2166 can be determined to be a signed type. The data for ENTRY can be
2167 found starting at DATA. */
2170 get_type_signedness (abbrev_entry
*entry
,
2171 const struct dwarf_section
*section
,
2172 unsigned char *data
,
2174 dwarf_vma cu_offset
,
2175 dwarf_vma pointer_size
,
2176 dwarf_vma offset_size
,
2179 unsigned int nesting
)
2183 * is_signed
= false;
2185 #define MAX_NESTING 20
2186 if (nesting
> MAX_NESTING
)
2188 /* FIXME: Warn - or is this expected ?
2189 NB/ We need to avoid infinite recursion. */
2193 for (attr
= entry
->first_attr
;
2194 attr
!= NULL
&& attr
->attribute
;
2197 unsigned char * orig_data
= data
;
2198 dwarf_vma uvalue
= 0;
2200 data
= skip_attr_bytes (attr
->form
, data
, end
, pointer_size
,
2201 offset_size
, dwarf_version
, & uvalue
);
2205 switch (attr
->attribute
)
2207 case DW_AT_linkage_name
:
2211 if (attr
->form
== DW_FORM_strp
)
2212 printf (", %s", fetch_indirect_string (uvalue
));
2213 else if (attr
->form
== DW_FORM_string
)
2214 printf (", %s", orig_data
);
2221 abbrev_entry
*type_abbrev
;
2222 unsigned char *type_data
;
2225 type_abbrev
= get_type_abbrev_from_form (attr
->form
,
2229 NULL
/* abbrev num return */,
2232 if (type_abbrev
== NULL
)
2235 get_type_signedness (type_abbrev
, section
, type_data
,
2236 map
? section
->start
+ map
->end
: end
,
2237 map
? map
->start
: cu_offset
,
2238 pointer_size
, offset_size
, dwarf_version
,
2239 is_signed
, nesting
+ 1);
2243 case DW_AT_encoding
:
2244 /* Determine signness. */
2247 case DW_ATE_address
:
2248 /* FIXME - some architectures have signed addresses. */
2249 case DW_ATE_boolean
:
2250 case DW_ATE_unsigned
:
2251 case DW_ATE_unsigned_char
:
2252 case DW_ATE_unsigned_fixed
:
2253 * is_signed
= false;
2257 case DW_ATE_complex_float
:
2260 case DW_ATE_signed_char
:
2261 case DW_ATE_imaginary_float
:
2262 case DW_ATE_decimal_float
:
2263 case DW_ATE_signed_fixed
:
2273 read_and_print_leb128 (unsigned char *data
,
2274 unsigned int *bytes_read
,
2275 unsigned const char *end
,
2279 dwarf_vma val
= read_leb128 (data
, end
, is_signed
, bytes_read
, &status
);
2281 report_leb_status (status
, __FILE__
, __LINE__
);
2283 printf ("%s", dwarf_vmatoa (is_signed
? "d" : "u", val
));
2287 display_discr_list (unsigned long form
,
2289 unsigned char * data
,
2290 unsigned const char * end
,
2295 printf ("[default]");
2302 case DW_FORM_block1
:
2303 case DW_FORM_block2
:
2304 case DW_FORM_block4
:
2305 /* Move data pointer back to the start of the byte array. */
2309 printf ("<corrupt>\n");
2310 warn (_("corrupt discr_list - not using a block form\n"));
2316 printf ("<corrupt>\n");
2317 warn (_("corrupt discr_list - block not long enough\n"));
2322 (level
> 0 && level
<= MAX_CU_NESTING
)
2323 ? level_type_signed
[level
- 1] : false;
2328 unsigned char discriminant
;
2329 unsigned int bytes_read
;
2331 SAFE_BYTE_GET_AND_INC (discriminant
, data
, 1, end
);
2334 assert (uvalue
> 0);
2335 switch (discriminant
)
2339 read_and_print_leb128 (data
, & bytes_read
, end
, is_signed
);
2340 assert (bytes_read
<= uvalue
&& bytes_read
> 0);
2341 uvalue
-= bytes_read
;
2347 read_and_print_leb128 (data
, & bytes_read
, end
, is_signed
);
2348 assert (bytes_read
<= uvalue
&& bytes_read
> 0);
2349 uvalue
-= bytes_read
;
2353 read_and_print_leb128 (data
, & bytes_read
, end
, is_signed
);
2354 assert (bytes_read
<= uvalue
&& bytes_read
> 0);
2355 uvalue
-= bytes_read
;
2360 printf ("<corrupt>\n");
2361 warn (_("corrupt discr_list - unrecognized discriminant byte %#x\n"),
2371 printf (")(signed)");
2373 printf (")(unsigned)");
2376 static unsigned char *
2377 read_and_display_attr_value (unsigned long attribute
,
2379 dwarf_signed_vma implicit_const
,
2380 unsigned char * start
,
2381 unsigned char * data
,
2382 unsigned char * end
,
2383 dwarf_vma cu_offset
,
2384 dwarf_vma pointer_size
,
2385 dwarf_vma offset_size
,
2387 debug_info
* debug_info_p
,
2389 struct dwarf_section
* section
,
2390 struct cu_tu_set
* this_set
,
2394 dwarf_signed_vma svalue
;
2395 dwarf_vma uvalue
= 0;
2396 dwarf_vma uvalue_hi
= 0;
2397 unsigned char *block_start
= NULL
;
2398 unsigned char *orig_data
= data
;
2400 if (data
> end
|| (data
== end
&& form
!= DW_FORM_flag_present
))
2402 warn (_("Corrupt attribute\n"));
2406 if (do_wide
&& ! do_loc
)
2408 /* PR 26847: Display the name of the form. */
2409 const char * name
= get_FORM_name (form
);
2411 /* For convenience we skip the DW_FORM_ prefix to the name. */
2413 name
+= 8; /* strlen ("DW_FORM_") */
2414 printf ("%c(%s)", delimiter
, name
);
2422 case DW_FORM_ref_addr
:
2423 if (dwarf_version
== 2)
2424 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
2425 else if (dwarf_version
> 2)
2426 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
2428 error (_("Internal error: DW_FORM_ref_addr is not supported in DWARF version 1.\n"));
2432 SAFE_BYTE_GET_AND_INC (uvalue
, data
, pointer_size
, end
);
2435 case DW_FORM_strp_sup
:
2437 case DW_FORM_line_strp
:
2438 case DW_FORM_sec_offset
:
2439 case DW_FORM_GNU_ref_alt
:
2440 case DW_FORM_GNU_strp_alt
:
2441 SAFE_BYTE_GET_AND_INC (uvalue
, data
, offset_size
, end
);
2444 case DW_FORM_flag_present
:
2452 case DW_FORM_addrx1
:
2453 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
2459 case DW_FORM_addrx2
:
2460 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 2, end
);
2464 case DW_FORM_addrx3
:
2465 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 3, end
);
2468 case DW_FORM_ref_sup4
:
2472 case DW_FORM_addrx4
:
2473 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
2476 case DW_FORM_ref_sup8
:
2479 case DW_FORM_ref_sig8
:
2480 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 8, end
);
2483 case DW_FORM_data16
:
2484 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 8, end
);
2485 SAFE_BYTE_GET_AND_INC (uvalue_hi
, data
, 8, end
);
2486 if (byte_get
!= byte_get_little_endian
)
2488 dwarf_vma utmp
= uvalue
;
2495 READ_SLEB (svalue
, data
, end
);
2499 case DW_FORM_GNU_str_index
:
2501 case DW_FORM_ref_udata
:
2503 case DW_FORM_GNU_addr_index
:
2505 READ_ULEB (uvalue
, data
, end
);
2508 case DW_FORM_indirect
:
2509 READ_ULEB (form
, data
, end
);
2511 printf ("%c%s", delimiter
, get_FORM_name (form
));
2512 if (form
== DW_FORM_implicit_const
)
2513 READ_SLEB (implicit_const
, data
, end
);
2514 return read_and_display_attr_value (attribute
, form
, implicit_const
,
2516 cu_offset
, pointer_size
,
2517 offset_size
, dwarf_version
,
2518 debug_info_p
, do_loc
,
2519 section
, this_set
, delimiter
, level
);
2524 case DW_FORM_ref_addr
:
2526 printf ("%c<0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
));
2529 case DW_FORM_GNU_ref_alt
:
2533 /* We have already printed the form name. */
2534 printf ("%c<0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
));
2536 printf ("%c<alt 0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
));
2538 /* FIXME: Follow the reference... */
2544 case DW_FORM_ref_sup4
:
2545 case DW_FORM_ref_udata
:
2547 printf ("%c<0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
+ cu_offset
));
2552 case DW_FORM_sec_offset
:
2554 printf ("%c0x%s", delimiter
, dwarf_vmatoa ("x", uvalue
));
2557 case DW_FORM_flag_present
:
2564 printf ("%c%s", delimiter
, dwarf_vmatoa ("d", uvalue
));
2567 case DW_FORM_implicit_const
:
2569 printf ("%c%s", delimiter
, dwarf_vmatoa ("d", implicit_const
));
2572 case DW_FORM_ref_sup8
:
2577 dwarf_vma utmp
= uvalue
;
2578 if (form
== DW_FORM_ref8
)
2580 printf ("%c0x%s", delimiter
, dwarf_vmatoa ("x", utmp
));
2584 case DW_FORM_data16
:
2587 uvalue_hi
== 0 ? "" : dwarf_vmatoa ("x", uvalue_hi
),
2588 dwarf_vmatoa_1 ("x", uvalue
, uvalue_hi
== 0 ? 0 : 8));
2591 case DW_FORM_string
:
2593 printf ("%c%.*s", delimiter
, (int) (end
- data
), data
);
2594 data
+= strnlen ((char *) data
, end
- data
);
2600 case DW_FORM_exprloc
:
2601 READ_ULEB (uvalue
, data
, end
);
2604 if (block_start
>= end
)
2606 warn (_("Block ends prematurely\n"));
2611 uvalue
= check_uvalue (block_start
, uvalue
, end
);
2614 data
= block_start
+ uvalue
;
2616 data
= display_block (block_start
, uvalue
, end
, delimiter
);
2619 case DW_FORM_block1
:
2620 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 1, end
);
2623 case DW_FORM_block2
:
2624 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 2, end
);
2627 case DW_FORM_block4
:
2628 SAFE_BYTE_GET_AND_INC (uvalue
, data
, 4, end
);
2635 /* We have already displayed the form name. */
2636 printf (_("%c(offset: 0x%s): %s"), delimiter
,
2637 dwarf_vmatoa ("x", uvalue
),
2638 fetch_indirect_string (uvalue
));
2640 printf (_("%c(indirect string, offset: 0x%s): %s"), delimiter
,
2641 dwarf_vmatoa ("x", uvalue
),
2642 fetch_indirect_string (uvalue
));
2646 case DW_FORM_line_strp
:
2650 /* We have already displayed the form name. */
2651 printf (_("%c(offset: 0x%s): %s"), delimiter
,
2652 dwarf_vmatoa ("x", uvalue
),
2653 fetch_indirect_line_string (uvalue
));
2655 printf (_("%c(indirect line string, offset: 0x%s): %s"), delimiter
,
2656 dwarf_vmatoa ("x", uvalue
),
2657 fetch_indirect_line_string (uvalue
));
2661 case DW_FORM_GNU_str_index
:
2669 const char *suffix
= strrchr (section
->name
, '.');
2670 bool dwo
= suffix
&& strcmp (suffix
, ".dwo") == 0;
2673 /* We have already displayed the form name. */
2674 printf (_("%c(offset: 0x%s): %s"), delimiter
,
2675 dwarf_vmatoa ("x", uvalue
),
2676 fetch_indexed_string (uvalue
, this_set
, offset_size
, dwo
));
2678 printf (_("%c(indexed string: 0x%s): %s"), delimiter
,
2679 dwarf_vmatoa ("x", uvalue
),
2680 fetch_indexed_string (uvalue
, this_set
, offset_size
, dwo
));
2684 case DW_FORM_GNU_strp_alt
:
2688 /* We have already displayed the form name. */
2689 printf (_("%c(offset: 0x%s) %s"), delimiter
,
2690 dwarf_vmatoa ("x", uvalue
),
2691 fetch_alt_indirect_string (uvalue
));
2693 printf (_("%c(alt indirect string, offset: 0x%s) %s"), delimiter
,
2694 dwarf_vmatoa ("x", uvalue
),
2695 fetch_alt_indirect_string (uvalue
));
2699 case DW_FORM_indirect
:
2700 /* Handled above. */
2703 case DW_FORM_ref_sig8
:
2705 printf ("%c%s: 0x%s", delimiter
, do_wide
? "" : "signature",
2706 dwarf_vmatoa ("x", uvalue
));
2709 case DW_FORM_GNU_addr_index
:
2711 case DW_FORM_addrx1
:
2712 case DW_FORM_addrx2
:
2713 case DW_FORM_addrx3
:
2714 case DW_FORM_addrx4
:
2720 if (debug_info_p
== NULL
)
2722 else if (debug_info_p
->addr_base
== DEBUG_INFO_UNAVAILABLE
)
2725 base
= debug_info_p
->addr_base
;
2727 offset
= base
+ uvalue
* pointer_size
;
2730 /* We have already displayed the form name. */
2731 printf (_("%c(index: 0x%s): %s"), delimiter
,
2732 dwarf_vmatoa ("x", uvalue
),
2733 fetch_indexed_value (offset
, pointer_size
));
2735 printf (_("%c(addr_index: 0x%s): %s"), delimiter
,
2736 dwarf_vmatoa ("x", uvalue
),
2737 fetch_indexed_value (offset
, pointer_size
));
2741 case DW_FORM_strp_sup
:
2743 printf ("%c<0x%s>", delimiter
, dwarf_vmatoa ("x", uvalue
+ cu_offset
));
2747 warn (_("Unrecognized form: 0x%lx\n"), form
);
2751 if ((do_loc
|| do_debug_loc
|| do_debug_ranges
)
2752 && num_debug_info_entries
== 0
2753 && debug_info_p
!= NULL
)
2757 case DW_AT_frame_base
:
2758 have_frame_base
= 1;
2760 case DW_AT_location
:
2761 case DW_AT_GNU_locviews
:
2762 case DW_AT_string_length
:
2763 case DW_AT_return_addr
:
2764 case DW_AT_data_member_location
:
2765 case DW_AT_vtable_elem_location
:
2767 case DW_AT_static_link
:
2768 case DW_AT_use_location
:
2769 case DW_AT_call_value
:
2770 case DW_AT_GNU_call_site_value
:
2771 case DW_AT_call_data_value
:
2772 case DW_AT_GNU_call_site_data_value
:
2773 case DW_AT_call_target
:
2774 case DW_AT_GNU_call_site_target
:
2775 case DW_AT_call_target_clobbered
:
2776 case DW_AT_GNU_call_site_target_clobbered
:
2777 if ((dwarf_version
< 4
2778 && (form
== DW_FORM_data4
|| form
== DW_FORM_data8
))
2779 || form
== DW_FORM_sec_offset
)
2781 /* Process location list. */
2782 unsigned int lmax
= debug_info_p
->max_loc_offsets
;
2783 unsigned int num
= debug_info_p
->num_loc_offsets
;
2785 if (lmax
== 0 || num
>= lmax
)
2788 debug_info_p
->loc_offsets
= (dwarf_vma
*)
2789 xcrealloc (debug_info_p
->loc_offsets
,
2790 lmax
, sizeof (*debug_info_p
->loc_offsets
));
2791 debug_info_p
->loc_views
= (dwarf_vma
*)
2792 xcrealloc (debug_info_p
->loc_views
,
2793 lmax
, sizeof (*debug_info_p
->loc_views
));
2794 debug_info_p
->have_frame_base
= (int *)
2795 xcrealloc (debug_info_p
->have_frame_base
,
2796 lmax
, sizeof (*debug_info_p
->have_frame_base
));
2797 debug_info_p
->max_loc_offsets
= lmax
;
2799 if (this_set
!= NULL
)
2800 uvalue
+= this_set
->section_offsets
[DW_SECT_LOC
];
2801 debug_info_p
->have_frame_base
[num
] = have_frame_base
;
2802 if (attribute
!= DW_AT_GNU_locviews
)
2804 /* Corrupt DWARF info can produce more offsets than views.
2805 See PR 23062 for an example. */
2806 if (debug_info_p
->num_loc_offsets
2807 > debug_info_p
->num_loc_views
)
2808 warn (_("More location offset attributes than DW_AT_GNU_locview attributes\n"));
2811 debug_info_p
->loc_offsets
[num
] = uvalue
;
2812 debug_info_p
->num_loc_offsets
++;
2817 assert (debug_info_p
->num_loc_views
<= num
);
2818 num
= debug_info_p
->num_loc_views
;
2819 if (num
> debug_info_p
->num_loc_offsets
)
2820 warn (_("More DW_AT_GNU_locview attributes than location offset attributes\n"));
2823 debug_info_p
->loc_views
[num
] = uvalue
;
2824 debug_info_p
->num_loc_views
++;
2831 if (need_base_address
)
2832 debug_info_p
->base_address
= uvalue
;
2835 case DW_AT_GNU_addr_base
:
2836 case DW_AT_addr_base
:
2837 debug_info_p
->addr_base
= uvalue
;
2840 case DW_AT_GNU_ranges_base
:
2841 debug_info_p
->ranges_base
= uvalue
;
2845 if ((dwarf_version
< 4
2846 && (form
== DW_FORM_data4
|| form
== DW_FORM_data8
))
2847 || form
== DW_FORM_sec_offset
)
2849 /* Process range list. */
2850 unsigned int lmax
= debug_info_p
->max_range_lists
;
2851 unsigned int num
= debug_info_p
->num_range_lists
;
2853 if (lmax
== 0 || num
>= lmax
)
2856 debug_info_p
->range_lists
= (dwarf_vma
*)
2857 xcrealloc (debug_info_p
->range_lists
,
2858 lmax
, sizeof (*debug_info_p
->range_lists
));
2859 debug_info_p
->max_range_lists
= lmax
;
2861 debug_info_p
->range_lists
[num
] = uvalue
;
2862 debug_info_p
->num_range_lists
++;
2866 case DW_AT_GNU_dwo_name
:
2867 case DW_AT_dwo_name
:
2872 add_dwo_name ((const char *) fetch_indirect_string (uvalue
), cu_offset
);
2874 case DW_FORM_GNU_strp_alt
:
2875 add_dwo_name ((const char *) fetch_alt_indirect_string (uvalue
), cu_offset
);
2877 case DW_FORM_GNU_str_index
:
2883 add_dwo_name (fetch_indexed_string (uvalue
, this_set
, offset_size
, false), cu_offset
);
2885 case DW_FORM_string
:
2886 add_dwo_name ((const char *) orig_data
, cu_offset
);
2889 warn (_("Unsupported form (%s) for attribute %s\n"),
2890 get_FORM_name (form
), get_AT_name (attribute
));
2895 case DW_AT_comp_dir
:
2896 /* FIXME: Also extract a build-id in a CU/TU. */
2901 add_dwo_dir ((const char *) fetch_indirect_string (uvalue
), cu_offset
);
2903 case DW_FORM_GNU_strp_alt
:
2904 add_dwo_dir (fetch_alt_indirect_string (uvalue
), cu_offset
);
2906 case DW_FORM_line_strp
:
2907 add_dwo_dir ((const char *) fetch_indirect_line_string (uvalue
), cu_offset
);
2909 case DW_FORM_GNU_str_index
:
2915 add_dwo_dir (fetch_indexed_string (uvalue
, this_set
, offset_size
, false), cu_offset
);
2917 case DW_FORM_string
:
2918 add_dwo_dir ((const char *) orig_data
, cu_offset
);
2921 warn (_("Unsupported form (%s) for attribute %s\n"),
2922 get_FORM_name (form
), get_AT_name (attribute
));
2927 case DW_AT_GNU_dwo_id
:
2932 /* FIXME: Record the length of the ID as well ? */
2933 add_dwo_id ((const char *) (data
- 8), cu_offset
);
2936 warn (_("Unsupported form (%s) for attribute %s\n"),
2937 get_FORM_name (form
), get_AT_name (attribute
));
2947 if (do_loc
|| attribute
== 0)
2950 /* For some attributes we can display further information. */
2954 if (level
>= 0 && level
< MAX_CU_NESTING
2955 && uvalue
< (size_t) (end
- start
))
2957 bool is_signed
= false;
2958 abbrev_entry
*type_abbrev
;
2959 unsigned char *type_data
;
2962 type_abbrev
= get_type_abbrev_from_form (form
, uvalue
, cu_offset
,
2963 section
, NULL
, &type_data
, &map
);
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
, end
, 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
,
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 (0x%s) found in section %s\n"),
3467 dwarf_vmatoa ("x", length
), section
->name
);
3470 section_begin
+= length
;
3475 error (_("No comp units in %s section ?\n"), section
->name
);
3479 if ((do_loc
|| do_debug_loc
|| do_debug_ranges
)
3480 && num_debug_info_entries
== 0
3484 /* Then allocate an array to hold the information. */
3485 debug_information
= (debug_info
*) cmalloc (num_units
,
3486 sizeof (* debug_information
));
3487 if (debug_information
== NULL
)
3489 error (_("Not enough memory for a debug info array of %u entries\n"),
3491 alloc_num_debug_info_entries
= num_debug_info_entries
= 0;
3495 /* PR 17531: file: 92ca3797.
3496 We cannot rely upon the debug_information array being initialised
3497 before it is used. A corrupt file could easily contain references
3498 to a unit for which information has not been made available. So
3499 we ensure that the array is zeroed here. */
3500 memset (debug_information
, 0, num_units
* sizeof (*debug_information
));
3502 alloc_num_debug_info_entries
= num_units
;
3507 load_debug_section_with_follow (str
, file
);
3508 load_debug_section_with_follow (line_str
, file
);
3509 load_debug_section_with_follow (str_dwo
, file
);
3510 load_debug_section_with_follow (str_index
, file
);
3511 load_debug_section_with_follow (str_index_dwo
, file
);
3512 load_debug_section_with_follow (debug_addr
, file
);
3515 load_debug_section_with_follow (abbrev_sec
, file
);
3516 if (debug_displays
[abbrev_sec
].section
.start
== NULL
)
3518 warn (_("Unable to locate %s section!\n"),
3519 debug_displays
[abbrev_sec
].section
.uncompressed_name
);
3523 if (!do_loc
&& dwarf_start_die
== 0)
3524 introduce (section
, false);
3526 free_all_abbrevs ();
3527 free (cu_abbrev_map
);
3528 cu_abbrev_map
= NULL
;
3529 next_free_abbrev_map_entry
= 0;
3531 /* In order to be able to resolve DW_FORM_ref_attr forms we need
3532 to load *all* of the abbrevs for all CUs in this .debug_info
3533 section. This does effectively mean that we (partially) read
3534 every CU header twice. */
3535 for (section_begin
= start
; start
< end
;)
3537 DWARF2_Internal_CompUnit compunit
;
3538 unsigned char * hdrptr
;
3539 dwarf_vma abbrev_base
;
3541 dwarf_vma cu_offset
;
3542 unsigned int offset_size
;
3543 struct cu_tu_set
* this_set
;
3545 unsigned char *end_cu
;
3548 cu_offset
= start
- section_begin
;
3550 SAFE_BYTE_GET_AND_INC (compunit
.cu_length
, hdrptr
, 4, end
);
3552 if (compunit
.cu_length
== 0xffffffff)
3554 SAFE_BYTE_GET_AND_INC (compunit
.cu_length
, hdrptr
, 8, end
);
3559 end_cu
= hdrptr
+ compunit
.cu_length
;
3561 SAFE_BYTE_GET_AND_INC (compunit
.cu_version
, hdrptr
, 2, end_cu
);
3563 this_set
= find_cu_tu_set_v2 (cu_offset
, do_types
);
3565 if (compunit
.cu_version
< 5)
3567 compunit
.cu_unit_type
= DW_UT_compile
;
3568 /* Initialize it due to a false compiler warning. */
3569 compunit
.cu_pointer_size
= -1;
3573 SAFE_BYTE_GET_AND_INC (compunit
.cu_unit_type
, hdrptr
, 1, end_cu
);
3574 do_types
= (compunit
.cu_unit_type
== DW_UT_type
);
3576 SAFE_BYTE_GET_AND_INC (compunit
.cu_pointer_size
, hdrptr
, 1, end_cu
);
3579 SAFE_BYTE_GET_AND_INC (compunit
.cu_abbrev_offset
, hdrptr
, offset_size
,
3582 if (compunit
.cu_unit_type
== DW_UT_split_compile
3583 || compunit
.cu_unit_type
== DW_UT_skeleton
)
3586 SAFE_BYTE_GET_AND_INC (dwo_id
, hdrptr
, 8, end_cu
);
3589 if (this_set
== NULL
)
3592 abbrev_size
= debug_displays
[abbrev_sec
].section
.size
;
3596 abbrev_base
= this_set
->section_offsets
[DW_SECT_ABBREV
];
3597 abbrev_size
= this_set
->section_sizes
[DW_SECT_ABBREV
];
3600 list
= find_abbrev_list_by_abbrev_offset (abbrev_base
,
3601 compunit
.cu_abbrev_offset
);
3604 unsigned char * next
;
3606 list
= new_abbrev_list (abbrev_base
,
3607 compunit
.cu_abbrev_offset
);
3608 next
= process_abbrev_set (&debug_displays
[abbrev_sec
].section
,
3609 abbrev_base
, abbrev_size
,
3610 compunit
.cu_abbrev_offset
, list
);
3611 list
->start_of_next_abbrevs
= next
;
3615 record_abbrev_list_for_cu (cu_offset
, start
- section_begin
, list
);
3618 for (start
= section_begin
, unit
= 0; start
< end
; unit
++)
3620 DWARF2_Internal_CompUnit compunit
;
3621 unsigned char *hdrptr
;
3622 unsigned char *tags
;
3623 int level
, last_level
, saved_level
;
3624 dwarf_vma cu_offset
;
3625 unsigned int offset_size
;
3626 dwarf_vma signature
= 0;
3627 dwarf_vma type_offset
= 0;
3628 struct cu_tu_set
*this_set
;
3629 dwarf_vma abbrev_base
;
3631 abbrev_list
* list
= NULL
;
3632 unsigned char *end_cu
;
3635 cu_offset
= start
- section_begin
;
3637 SAFE_BYTE_GET_AND_INC (compunit
.cu_length
, hdrptr
, 4, end
);
3639 if (compunit
.cu_length
== 0xffffffff)
3641 SAFE_BYTE_GET_AND_INC (compunit
.cu_length
, hdrptr
, 8, end
);
3646 end_cu
= hdrptr
+ compunit
.cu_length
;
3648 SAFE_BYTE_GET_AND_INC (compunit
.cu_version
, hdrptr
, 2, end_cu
);
3650 this_set
= find_cu_tu_set_v2 (cu_offset
, do_types
);
3652 if (compunit
.cu_version
< 5)
3654 compunit
.cu_unit_type
= DW_UT_compile
;
3655 /* Initialize it due to a false compiler warning. */
3656 compunit
.cu_pointer_size
= -1;
3660 SAFE_BYTE_GET_AND_INC (compunit
.cu_unit_type
, hdrptr
, 1, end_cu
);
3661 do_types
= (compunit
.cu_unit_type
== DW_UT_type
);
3663 SAFE_BYTE_GET_AND_INC (compunit
.cu_pointer_size
, hdrptr
, 1, end_cu
);
3666 SAFE_BYTE_GET_AND_INC (compunit
.cu_abbrev_offset
, hdrptr
, offset_size
, end_cu
);
3668 if (this_set
== NULL
)
3671 abbrev_size
= debug_displays
[abbrev_sec
].section
.size
;
3675 abbrev_base
= this_set
->section_offsets
[DW_SECT_ABBREV
];
3676 abbrev_size
= this_set
->section_sizes
[DW_SECT_ABBREV
];
3679 if (compunit
.cu_version
< 5)
3680 SAFE_BYTE_GET_AND_INC (compunit
.cu_pointer_size
, hdrptr
, 1, end_cu
);
3682 bool do_dwo_id
= false;
3683 uint64_t dwo_id
= 0;
3684 if (compunit
.cu_unit_type
== DW_UT_split_compile
3685 || compunit
.cu_unit_type
== DW_UT_skeleton
)
3687 SAFE_BYTE_GET_AND_INC (dwo_id
, hdrptr
, 8, end_cu
);
3691 /* PR 17512: file: 001-108546-0.001:0.1. */
3692 if (compunit
.cu_pointer_size
< 2 || compunit
.cu_pointer_size
> 8)
3694 warn (_("Invalid pointer size (%d) in compunit header, using %d instead\n"),
3695 compunit
.cu_pointer_size
, offset_size
);
3696 compunit
.cu_pointer_size
= offset_size
;
3701 SAFE_BYTE_GET_AND_INC (signature
, hdrptr
, 8, end_cu
);
3702 SAFE_BYTE_GET_AND_INC (type_offset
, hdrptr
, offset_size
, end_cu
);
3705 if (dwarf_start_die
>= (size_t) (end_cu
- section_begin
))
3711 if ((do_loc
|| do_debug_loc
|| do_debug_ranges
)
3712 && num_debug_info_entries
== 0
3713 && alloc_num_debug_info_entries
> unit
3716 debug_information
[unit
].cu_offset
= cu_offset
;
3717 debug_information
[unit
].pointer_size
3718 = compunit
.cu_pointer_size
;
3719 debug_information
[unit
].offset_size
= offset_size
;
3720 debug_information
[unit
].dwarf_version
= compunit
.cu_version
;
3721 debug_information
[unit
].base_address
= 0;
3722 debug_information
[unit
].addr_base
= DEBUG_INFO_UNAVAILABLE
;
3723 debug_information
[unit
].ranges_base
= DEBUG_INFO_UNAVAILABLE
;
3724 debug_information
[unit
].loc_offsets
= NULL
;
3725 debug_information
[unit
].have_frame_base
= NULL
;
3726 debug_information
[unit
].max_loc_offsets
= 0;
3727 debug_information
[unit
].num_loc_offsets
= 0;
3728 debug_information
[unit
].range_lists
= NULL
;
3729 debug_information
[unit
].max_range_lists
= 0;
3730 debug_information
[unit
].num_range_lists
= 0;
3733 if (!do_loc
&& dwarf_start_die
== 0)
3735 printf (_(" Compilation Unit @ offset 0x%s:\n"),
3736 dwarf_vmatoa ("x", cu_offset
));
3737 printf (_(" Length: 0x%s (%s)\n"),
3738 dwarf_vmatoa ("x", compunit
.cu_length
),
3739 offset_size
== 8 ? "64-bit" : "32-bit");
3740 printf (_(" Version: %d\n"), compunit
.cu_version
);
3741 if (compunit
.cu_version
>= 5)
3743 const char *name
= get_DW_UT_name (compunit
.cu_unit_type
);
3745 printf (_(" Unit Type: %s (%x)\n"),
3746 name
? name
: "???",
3747 compunit
.cu_unit_type
);
3749 printf (_(" Abbrev Offset: 0x%s\n"),
3750 dwarf_vmatoa ("x", compunit
.cu_abbrev_offset
));
3751 printf (_(" Pointer Size: %d\n"), compunit
.cu_pointer_size
);
3754 printf (_(" Signature: 0x%s\n"),
3755 dwarf_vmatoa ("x", signature
));
3756 printf (_(" Type Offset: 0x%s\n"),
3757 dwarf_vmatoa ("x", type_offset
));
3760 printf (_(" DWO ID: 0x%s\n"), dwarf_vmatoa ("x", dwo_id
));
3761 if (this_set
!= NULL
)
3763 dwarf_vma
*offsets
= this_set
->section_offsets
;
3764 size_t *sizes
= this_set
->section_sizes
;
3766 printf (_(" Section contributions:\n"));
3767 printf (_(" .debug_abbrev.dwo: 0x%s 0x%s\n"),
3768 dwarf_vmatoa ("x", offsets
[DW_SECT_ABBREV
]),
3769 dwarf_vmatoa ("x", sizes
[DW_SECT_ABBREV
]));
3770 printf (_(" .debug_line.dwo: 0x%s 0x%s\n"),
3771 dwarf_vmatoa ("x", offsets
[DW_SECT_LINE
]),
3772 dwarf_vmatoa ("x", sizes
[DW_SECT_LINE
]));
3773 printf (_(" .debug_loc.dwo: 0x%s 0x%s\n"),
3774 dwarf_vmatoa ("x", offsets
[DW_SECT_LOC
]),
3775 dwarf_vmatoa ("x", sizes
[DW_SECT_LOC
]));
3776 printf (_(" .debug_str_offsets.dwo: 0x%s 0x%s\n"),
3777 dwarf_vmatoa ("x", offsets
[DW_SECT_STR_OFFSETS
]),
3778 dwarf_vmatoa ("x", sizes
[DW_SECT_STR_OFFSETS
]));
3785 if (compunit
.cu_version
< 2 || compunit
.cu_version
> 5)
3787 warn (_("CU at offset %s contains corrupt or "
3788 "unsupported version number: %d.\n"),
3789 dwarf_vmatoa ("x", cu_offset
), compunit
.cu_version
);
3793 if (compunit
.cu_unit_type
!= DW_UT_compile
3794 && compunit
.cu_unit_type
!= DW_UT_partial
3795 && compunit
.cu_unit_type
!= DW_UT_type
3796 && compunit
.cu_unit_type
!= DW_UT_split_compile
3797 && compunit
.cu_unit_type
!= DW_UT_skeleton
)
3799 warn (_("CU at offset %s contains corrupt or "
3800 "unsupported unit type: %d.\n"),
3801 dwarf_vmatoa ("x", cu_offset
), compunit
.cu_unit_type
);
3805 /* Process the abbrevs used by this compilation unit. */
3806 list
= find_abbrev_list_by_abbrev_offset (abbrev_base
,
3807 compunit
.cu_abbrev_offset
);
3810 unsigned char *next
;
3812 list
= new_abbrev_list (abbrev_base
,
3813 compunit
.cu_abbrev_offset
);
3814 next
= process_abbrev_set (&debug_displays
[abbrev_sec
].section
,
3815 abbrev_base
, abbrev_size
,
3816 compunit
.cu_abbrev_offset
, list
);
3817 list
->start_of_next_abbrevs
= next
;
3823 while (tags
< start
)
3825 unsigned long abbrev_number
;
3826 unsigned long die_offset
;
3827 abbrev_entry
*entry
;
3829 int do_printing
= 1;
3831 die_offset
= tags
- section_begin
;
3833 READ_ULEB (abbrev_number
, tags
, start
);
3835 /* A null DIE marks the end of a list of siblings or it may also be
3836 a section padding. */
3837 if (abbrev_number
== 0)
3839 /* Check if it can be a section padding for the last CU. */
3840 if (level
== 0 && start
== end
)
3844 for (chk
= tags
; chk
< start
; chk
++)
3851 if (!do_loc
&& die_offset
>= dwarf_start_die
3852 && (dwarf_cutoff_level
== -1
3853 || level
< dwarf_cutoff_level
))
3854 printf (_(" <%d><%lx>: Abbrev Number: 0\n"),
3860 static unsigned num_bogus_warns
= 0;
3862 if (num_bogus_warns
< 3)
3864 warn (_("Bogus end-of-siblings marker detected at offset %lx in %s section\n"),
3865 die_offset
, section
->name
);
3867 if (num_bogus_warns
== 3)
3868 warn (_("Further warnings about bogus end-of-sibling markers suppressed\n"));
3871 if (dwarf_start_die
!= 0 && level
< saved_level
)
3878 if (dwarf_start_die
!= 0 && die_offset
< dwarf_start_die
)
3882 if (dwarf_start_die
!= 0 && die_offset
== dwarf_start_die
)
3883 saved_level
= level
;
3884 do_printing
= (dwarf_cutoff_level
== -1
3885 || level
< dwarf_cutoff_level
);
3887 printf (_(" <%d><%lx>: Abbrev Number: %lu"),
3888 level
, die_offset
, abbrev_number
);
3889 else if (dwarf_cutoff_level
== -1
3890 || last_level
< dwarf_cutoff_level
)
3891 printf (_(" <%d><%lx>: ...\n"), level
, die_offset
);
3896 /* Scan through the abbreviation list until we reach the
3901 for (entry
= list
->first_abbrev
; entry
!= NULL
; entry
= entry
->next
)
3902 if (entry
->number
== abbrev_number
)
3907 if (!do_loc
&& do_printing
)
3912 warn (_("DIE at offset 0x%lx refers to abbreviation number %lu which does not exist\n"),
3913 die_offset
, abbrev_number
);
3917 if (!do_loc
&& do_printing
)
3918 printf (" (%s)\n", get_TAG_name (entry
->tag
));
3923 need_base_address
= 0;
3925 case DW_TAG_compile_unit
:
3926 need_base_address
= 1;
3927 need_dwo_info
= do_loc
;
3929 case DW_TAG_entry_point
:
3930 case DW_TAG_subprogram
:
3931 need_base_address
= 0;
3932 /* Assuming that there is no DW_AT_frame_base. */
3933 have_frame_base
= 0;
3937 debug_info
*debug_info_p
=
3938 (debug_information
&& unit
< alloc_num_debug_info_entries
)
3939 ? debug_information
+ unit
: NULL
;
3941 assert (!debug_info_p
3942 || (debug_info_p
->num_loc_offsets
3943 == debug_info_p
->num_loc_views
));
3945 for (attr
= entry
->first_attr
;
3946 attr
&& attr
->attribute
;
3949 if (! do_loc
&& do_printing
)
3950 /* Show the offset from where the tag was extracted. */
3951 printf (" <%lx>", (unsigned long)(tags
- section_begin
));
3952 tags
= read_and_display_attr (attr
->attribute
,
3954 attr
->implicit_const
,
3959 compunit
.cu_pointer_size
,
3961 compunit
.cu_version
,
3963 do_loc
|| ! do_printing
,
3969 /* If a locview attribute appears before a location one,
3970 make sure we don't associate it with an earlier
3973 switch (debug_info_p
->num_loc_offsets
- debug_info_p
->num_loc_views
)
3976 debug_info_p
->loc_views
[debug_info_p
->num_loc_views
] = vm1
;
3977 debug_info_p
->num_loc_views
++;
3978 assert (debug_info_p
->num_loc_views
3979 == debug_info_p
->num_loc_offsets
);
3986 warn(_("DIE has locviews without loclist\n"));
3987 debug_info_p
->num_loc_views
--;
3994 if (entry
->children
)
3999 /* Set num_debug_info_entries here so that it can be used to check if
4000 we need to process .debug_loc and .debug_ranges sections. */
4001 if ((do_loc
|| do_debug_loc
|| do_debug_ranges
)
4002 && num_debug_info_entries
== 0
4005 if (num_units
> alloc_num_debug_info_entries
)
4006 num_debug_info_entries
= alloc_num_debug_info_entries
;
4008 num_debug_info_entries
= num_units
;
4017 /* Locate and scan the .debug_info section in the file and record the pointer
4018 sizes and offsets for the compilation units in it. Usually an executable
4019 will have just one pointer size, but this is not guaranteed, and so we try
4020 not to make any assumptions. Returns zero upon failure, or the number of
4021 compilation units upon success. */
4024 load_debug_info (void * file
)
4026 /* If we have already tried and failed to load the .debug_info
4027 section then do not bother to repeat the task. */
4028 if (num_debug_info_entries
== DEBUG_INFO_UNAVAILABLE
)
4031 /* If we already have the information there is nothing else to do. */
4032 if (num_debug_info_entries
> 0)
4033 return num_debug_info_entries
;
4035 /* If this is a DWARF package file, load the CU and TU indexes. */
4036 (void) load_cu_tu_indexes (file
);
4038 if (load_debug_section_with_follow (info
, file
)
4039 && process_debug_info (&debug_displays
[info
].section
, file
, abbrev
, true, false))
4040 return num_debug_info_entries
;
4042 if (load_debug_section_with_follow (info_dwo
, file
)
4043 && process_debug_info (&debug_displays
[info_dwo
].section
, file
,
4044 abbrev_dwo
, true, false))
4045 return num_debug_info_entries
;
4047 num_debug_info_entries
= DEBUG_INFO_UNAVAILABLE
;
4051 /* Read a DWARF .debug_line section header starting at DATA.
4052 Upon success returns an updated DATA pointer and the LINFO
4053 structure and the END_OF_SEQUENCE pointer will be filled in.
4054 Otherwise returns NULL. */
4056 static unsigned char *
4057 read_debug_line_header (struct dwarf_section
* section
,
4058 unsigned char * data
,
4059 unsigned char * end
,
4060 DWARF2_Internal_LineInfo
* linfo
,
4061 unsigned char ** end_of_sequence
)
4063 unsigned char *hdrptr
;
4065 /* Extract information from the Line Number Program Header.
4066 (section 6.2.4 in the Dwarf3 doc). */
4069 /* Get and check the length of the block. */
4070 SAFE_BYTE_GET_AND_INC (linfo
->li_length
, hdrptr
, 4, end
);
4072 if (linfo
->li_length
== 0xffffffff)
4074 /* This section is 64-bit DWARF 3. */
4075 SAFE_BYTE_GET_AND_INC (linfo
->li_length
, hdrptr
, 8, end
);
4076 linfo
->li_offset_size
= 8;
4079 linfo
->li_offset_size
= 4;
4081 if (linfo
->li_length
> (size_t) (end
- hdrptr
))
4083 /* If the length field has a relocation against it, then we should
4084 not complain if it is inaccurate (and probably negative). This
4085 happens in object files when the .debug_line section is actually
4086 comprised of several different .debug_line.* sections, (some of
4087 which may be removed by linker garbage collection), and a relocation
4088 is used to compute the correct length once that is done. */
4089 if (reloc_at (section
, (hdrptr
- section
->start
) - linfo
->li_offset_size
))
4091 linfo
->li_length
= end
- hdrptr
;
4095 warn (_("The length field (0x%lx) in the debug_line header is wrong - the section is too small\n"),
4096 (long) linfo
->li_length
);
4100 end
= hdrptr
+ linfo
->li_length
;
4102 /* Get and check the version number. */
4103 SAFE_BYTE_GET_AND_INC (linfo
->li_version
, hdrptr
, 2, end
);
4105 if (linfo
->li_version
!= 2
4106 && linfo
->li_version
!= 3
4107 && linfo
->li_version
!= 4
4108 && linfo
->li_version
!= 5)
4110 warn (_("Only DWARF version 2, 3, 4 and 5 line info "
4111 "is currently supported.\n"));
4115 if (linfo
->li_version
>= 5)
4117 SAFE_BYTE_GET_AND_INC (linfo
->li_address_size
, hdrptr
, 1, end
);
4119 SAFE_BYTE_GET_AND_INC (linfo
->li_segment_size
, hdrptr
, 1, end
);
4120 if (linfo
->li_segment_size
!= 0)
4122 warn (_("The %s section contains "
4123 "unsupported segment selector size: %d.\n"),
4124 section
->name
, linfo
->li_segment_size
);
4129 SAFE_BYTE_GET_AND_INC (linfo
->li_prologue_length
, hdrptr
,
4130 linfo
->li_offset_size
, end
);
4131 SAFE_BYTE_GET_AND_INC (linfo
->li_min_insn_length
, hdrptr
, 1, end
);
4133 if (linfo
->li_version
>= 4)
4135 SAFE_BYTE_GET_AND_INC (linfo
->li_max_ops_per_insn
, hdrptr
, 1, end
);
4137 if (linfo
->li_max_ops_per_insn
== 0)
4139 warn (_("Invalid maximum operations per insn.\n"));
4144 linfo
->li_max_ops_per_insn
= 1;
4146 SAFE_BYTE_GET_AND_INC (linfo
->li_default_is_stmt
, hdrptr
, 1, end
);
4147 SAFE_SIGNED_BYTE_GET_AND_INC (linfo
->li_line_base
, hdrptr
, 1, end
);
4148 SAFE_BYTE_GET_AND_INC (linfo
->li_line_range
, hdrptr
, 1, end
);
4149 SAFE_BYTE_GET_AND_INC (linfo
->li_opcode_base
, hdrptr
, 1, end
);
4151 *end_of_sequence
= end
;
4155 static unsigned char *
4156 display_formatted_table (unsigned char *data
,
4157 unsigned char *start
,
4159 const DWARF2_Internal_LineInfo
*linfo
,
4160 struct dwarf_section
*section
,
4163 unsigned char *format_start
, format_count
, *format
, formati
;
4164 dwarf_vma data_count
, datai
;
4165 unsigned int namepass
, last_entry
= 0;
4166 const char * table_name
= is_dir
? N_("Directory Table") : N_("File Name Table");
4168 SAFE_BYTE_GET_AND_INC (format_count
, data
, 1, end
);
4169 if (do_checks
&& format_count
> 5)
4170 warn (_("Unexpectedly large number of columns in the %s (%u)\n"),
4171 table_name
, format_count
);
4173 format_start
= data
;
4174 for (formati
= 0; formati
< format_count
; formati
++)
4176 SKIP_ULEB (data
, end
);
4177 SKIP_ULEB (data
, end
);
4180 warn (_("%s: Corrupt format description entry\n"), table_name
);
4185 READ_ULEB (data_count
, data
, end
);
4186 if (data_count
== 0)
4188 printf (_("\n The %s is empty.\n"), table_name
);
4191 else if (data
>= end
)
4193 warn (_("%s: Corrupt entry count - expected %s but none found\n"),
4194 table_name
, dwarf_vmatoa ("x", data_count
));
4198 else if (format_count
== 0)
4200 warn (_("%s: format count is zero, but the table is not empty\n"),
4205 printf (_("\n The %s (offset 0x%lx, lines %s, columns %u):\n"),
4206 table_name
, (long) (data
- start
), dwarf_vmatoa ("u", data_count
),
4209 printf (_(" Entry"));
4210 /* Delay displaying name as the last entry for better screen layout. */
4211 for (namepass
= 0; namepass
< 2; namepass
++)
4213 format
= format_start
;
4214 for (formati
= 0; formati
< format_count
; formati
++)
4216 dwarf_vma content_type
;
4218 READ_ULEB (content_type
, format
, end
);
4219 if ((content_type
== DW_LNCT_path
) == (namepass
== 1))
4220 switch (content_type
)
4223 printf (_("\tName"));
4225 case DW_LNCT_directory_index
:
4226 printf (_("\tDir"));
4228 case DW_LNCT_timestamp
:
4229 printf (_("\tTime"));
4232 printf (_("\tSize"));
4235 printf (_("\tMD5\t\t\t"));
4238 printf (_("\t(Unknown format content type %s)"),
4239 dwarf_vmatoa ("u", content_type
));
4241 SKIP_ULEB (format
, end
);
4246 for (datai
= 0; datai
< data_count
; datai
++)
4248 unsigned char *datapass
= data
;
4250 printf (" %d", last_entry
++);
4251 /* Delay displaying name as the last entry for better screen layout. */
4252 for (namepass
= 0; namepass
< 2; namepass
++)
4254 format
= format_start
;
4256 for (formati
= 0; formati
< format_count
; formati
++)
4258 dwarf_vma content_type
, form
;
4260 READ_ULEB (content_type
, format
, end
);
4261 READ_ULEB (form
, format
, end
);
4262 data
= read_and_display_attr_value (0, form
, 0, start
, data
, end
,
4263 0, 0, linfo
->li_offset_size
,
4264 linfo
->li_version
, NULL
,
4265 ((content_type
== DW_LNCT_path
) != (namepass
== 1)),
4266 section
, NULL
, '\t', -1);
4270 if (data
>= end
&& (datai
< data_count
- 1))
4272 warn (_("\n%s: Corrupt entries list\n"), table_name
);
4281 display_debug_sup (struct dwarf_section
* section
,
4282 void * file ATTRIBUTE_UNUSED
)
4284 unsigned char * start
= section
->start
;
4285 unsigned char * end
= section
->start
+ section
->size
;
4286 unsigned int version
;
4287 char is_supplementary
;
4288 const unsigned char * sup_filename
;
4289 size_t sup_filename_len
;
4290 unsigned int num_read
;
4292 dwarf_vma checksum_len
;
4295 introduce (section
, true);
4296 if (section
->size
< 4)
4298 error (_("corrupt .debug_sup section: size is too small\n"));
4302 /* Read the data. */
4303 SAFE_BYTE_GET_AND_INC (version
, start
, 2, end
);
4305 warn (_("corrupt .debug_sup section: version < 5"));
4307 SAFE_BYTE_GET_AND_INC (is_supplementary
, start
, 1, end
);
4308 if (is_supplementary
!= 0 && is_supplementary
!= 1)
4309 warn (_("corrupt .debug_sup section: is_supplementary not 0 or 1\n"));
4311 sup_filename
= start
;
4312 if (is_supplementary
&& sup_filename
[0] != 0)
4313 warn (_("corrupt .debug_sup section: filename not empty in supplementary section\n"));
4315 sup_filename_len
= strnlen ((const char *) start
, end
- start
);
4316 if (sup_filename_len
== (size_t) (end
- start
))
4318 error (_("corrupt .debug_sup section: filename is not NUL terminated\n"));
4321 start
+= sup_filename_len
+ 1;
4323 checksum_len
= read_leb128 (start
, end
, false /* unsigned */, & num_read
, & status
);
4326 error (_("corrupt .debug_sup section: bad LEB128 field for checksum length\n"));
4330 if (checksum_len
> (dwarf_vma
) (end
- start
))
4332 error (_("corrupt .debug_sup section: checksum length is longer than the remaining section length\n"));
4333 checksum_len
= end
- start
;
4335 else if (checksum_len
< (dwarf_vma
) (end
- start
))
4337 warn (_("corrupt .debug_sup section: there are 0x%lx extra, unused bytes at the end of the section\n"),
4338 (long) ((end
- start
) - checksum_len
));
4341 printf (_(" Version: %u\n"), version
);
4342 printf (_(" Is Supp: %u\n"), is_supplementary
);
4343 printf (_(" Filename: %s\n"), sup_filename
);
4344 printf (_(" Checksum Len: %lu\n"), (long) checksum_len
);
4345 if (checksum_len
> 0)
4347 printf (_(" Checksum: "));
4348 while (checksum_len
--)
4349 printf ("0x%x ", * start
++ );
4356 display_debug_lines_raw (struct dwarf_section
* section
,
4357 unsigned char * data
,
4358 unsigned char * end
,
4361 unsigned char *start
= section
->start
;
4362 int verbose_view
= 0;
4364 introduce (section
, true);
4368 static DWARF2_Internal_LineInfo saved_linfo
;
4369 DWARF2_Internal_LineInfo linfo
;
4370 unsigned char *standard_opcodes
;
4371 unsigned char *end_of_sequence
;
4374 if (startswith (section
->name
, ".debug_line.")
4375 /* Note: the following does not apply to .debug_line.dwo sections.
4376 These are full debug_line sections. */
4377 && strcmp (section
->name
, ".debug_line.dwo") != 0)
4379 /* Sections named .debug_line.<foo> are fragments of a .debug_line
4380 section containing just the Line Number Statements. They are
4381 created by the assembler and intended to be used alongside gcc's
4382 -ffunction-sections command line option. When the linker's
4383 garbage collection decides to discard a .text.<foo> section it
4384 can then also discard the line number information in .debug_line.<foo>.
4386 Since the section is a fragment it does not have the details
4387 needed to fill out a LineInfo structure, so instead we use the
4388 details from the last full debug_line section that we processed. */
4389 end_of_sequence
= end
;
4390 standard_opcodes
= NULL
;
4391 linfo
= saved_linfo
;
4392 /* PR 17531: file: 0522b371. */
4393 if (linfo
.li_line_range
== 0)
4395 warn (_("Partial .debug_line. section encountered without a prior full .debug_line section\n"));
4398 reset_state_machine (linfo
.li_default_is_stmt
);
4402 unsigned char * hdrptr
;
4404 if ((hdrptr
= read_debug_line_header (section
, data
, end
, & linfo
,
4405 & end_of_sequence
)) == NULL
)
4408 printf (_(" Offset: 0x%lx\n"), (long)(data
- start
));
4409 printf (_(" Length: %ld\n"), (long) linfo
.li_length
);
4410 printf (_(" DWARF Version: %d\n"), linfo
.li_version
);
4411 if (linfo
.li_version
>= 5)
4413 printf (_(" Address size (bytes): %d\n"), linfo
.li_address_size
);
4414 printf (_(" Segment selector (bytes): %d\n"), linfo
.li_segment_size
);
4416 printf (_(" Prologue Length: %d\n"), (int) linfo
.li_prologue_length
);
4417 printf (_(" Minimum Instruction Length: %d\n"), linfo
.li_min_insn_length
);
4418 if (linfo
.li_version
>= 4)
4419 printf (_(" Maximum Ops per Instruction: %d\n"), linfo
.li_max_ops_per_insn
);
4420 printf (_(" Initial value of 'is_stmt': %d\n"), linfo
.li_default_is_stmt
);
4421 printf (_(" Line Base: %d\n"), linfo
.li_line_base
);
4422 printf (_(" Line Range: %d\n"), linfo
.li_line_range
);
4423 printf (_(" Opcode Base: %d\n"), linfo
.li_opcode_base
);
4425 /* PR 17512: file: 1665-6428-0.004. */
4426 if (linfo
.li_line_range
== 0)
4428 warn (_("Line range of 0 is invalid, using 1 instead\n"));
4429 linfo
.li_line_range
= 1;
4432 reset_state_machine (linfo
.li_default_is_stmt
);
4434 /* Display the contents of the Opcodes table. */
4435 standard_opcodes
= hdrptr
;
4437 /* PR 17512: file: 002-417945-0.004. */
4438 if (standard_opcodes
+ linfo
.li_opcode_base
>= end
)
4440 warn (_("Line Base extends beyond end of section\n"));
4444 printf (_("\n Opcodes:\n"));
4446 for (i
= 1; i
< linfo
.li_opcode_base
; i
++)
4447 printf (ngettext (" Opcode %d has %d arg\n",
4448 " Opcode %d has %d args\n",
4449 standard_opcodes
[i
- 1]),
4450 i
, standard_opcodes
[i
- 1]);
4452 /* Display the contents of the Directory table. */
4453 data
= standard_opcodes
+ linfo
.li_opcode_base
- 1;
4455 if (linfo
.li_version
>= 5)
4457 load_debug_section_with_follow (line_str
, file
);
4459 data
= display_formatted_table (data
, start
, end
, &linfo
, section
,
4461 data
= display_formatted_table (data
, start
, end
, &linfo
, section
,
4467 printf (_("\n The Directory Table is empty.\n"));
4470 unsigned int last_dir_entry
= 0;
4472 printf (_("\n The Directory Table (offset 0x%lx):\n"),
4473 (long)(data
- start
));
4475 while (data
< end
&& *data
!= 0)
4477 printf (" %d\t%.*s\n", ++last_dir_entry
, (int) (end
- data
), data
);
4479 data
+= strnlen ((char *) data
, end
- data
);
4484 /* PR 17512: file: 002-132094-0.004. */
4485 if (data
>= end
- 1)
4489 /* Skip the NUL at the end of the table. */
4493 /* Display the contents of the File Name table. */
4494 if (data
>= end
|| *data
== 0)
4495 printf (_("\n The File Name Table is empty.\n"));
4498 printf (_("\n The File Name Table (offset 0x%lx):\n"),
4499 (long)(data
- start
));
4500 printf (_(" Entry\tDir\tTime\tSize\tName\n"));
4502 while (data
< end
&& *data
!= 0)
4504 unsigned char *name
;
4507 printf (" %d\t", ++state_machine_regs
.last_file_entry
);
4509 data
+= strnlen ((char *) data
, end
- data
);
4513 READ_ULEB (val
, data
, end
);
4514 printf ("%s\t", dwarf_vmatoa ("u", val
));
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 printf ("%.*s\n", (int)(end
- name
), name
);
4523 warn (_("Corrupt file name table entry\n"));
4529 /* Skip the NUL at the end of the table. */
4535 saved_linfo
= linfo
;
4538 /* Now display the statements. */
4539 if (data
>= end_of_sequence
)
4540 printf (_(" No Line Number Statements.\n"));
4543 printf (_(" Line Number Statements:\n"));
4545 while (data
< end_of_sequence
)
4547 unsigned char op_code
;
4548 dwarf_signed_vma adv
;
4551 printf (" [0x%08lx]", (long)(data
- start
));
4555 if (op_code
>= linfo
.li_opcode_base
)
4557 op_code
-= linfo
.li_opcode_base
;
4558 uladv
= (op_code
/ linfo
.li_line_range
);
4559 if (linfo
.li_max_ops_per_insn
== 1)
4561 uladv
*= linfo
.li_min_insn_length
;
4562 state_machine_regs
.address
+= uladv
;
4564 state_machine_regs
.view
= 0;
4565 printf (_(" Special opcode %d: "
4566 "advance Address by %s to 0x%s%s"),
4567 op_code
, dwarf_vmatoa ("u", uladv
),
4568 dwarf_vmatoa ("x", state_machine_regs
.address
),
4569 verbose_view
&& uladv
4570 ? _(" (reset view)") : "");
4575 = ((state_machine_regs
.op_index
+ uladv
)
4576 / linfo
.li_max_ops_per_insn
)
4577 * linfo
.li_min_insn_length
;
4579 state_machine_regs
.address
+= addrdelta
;
4580 state_machine_regs
.op_index
4581 = (state_machine_regs
.op_index
+ uladv
)
4582 % linfo
.li_max_ops_per_insn
;
4584 state_machine_regs
.view
= 0;
4585 printf (_(" Special opcode %d: "
4586 "advance Address by %s to 0x%s[%d]%s"),
4587 op_code
, dwarf_vmatoa ("u", uladv
),
4588 dwarf_vmatoa ("x", state_machine_regs
.address
),
4589 state_machine_regs
.op_index
,
4590 verbose_view
&& addrdelta
4591 ? _(" (reset view)") : "");
4593 adv
= (op_code
% linfo
.li_line_range
) + linfo
.li_line_base
;
4594 state_machine_regs
.line
+= adv
;
4595 printf (_(" and Line by %s to %d"),
4596 dwarf_vmatoa ("d", adv
), state_machine_regs
.line
);
4597 if (verbose_view
|| state_machine_regs
.view
)
4598 printf (_(" (view %u)\n"), state_machine_regs
.view
);
4601 state_machine_regs
.view
++;
4606 case DW_LNS_extended_op
:
4607 data
+= process_extended_line_op (data
,
4608 linfo
.li_default_is_stmt
,
4613 printf (_(" Copy"));
4614 if (verbose_view
|| state_machine_regs
.view
)
4615 printf (_(" (view %u)\n"), state_machine_regs
.view
);
4618 state_machine_regs
.view
++;
4621 case DW_LNS_advance_pc
:
4622 READ_ULEB (uladv
, data
, end
);
4623 if (linfo
.li_max_ops_per_insn
== 1)
4625 uladv
*= linfo
.li_min_insn_length
;
4626 state_machine_regs
.address
+= uladv
;
4628 state_machine_regs
.view
= 0;
4629 printf (_(" Advance PC by %s to 0x%s%s\n"),
4630 dwarf_vmatoa ("u", uladv
),
4631 dwarf_vmatoa ("x", state_machine_regs
.address
),
4632 verbose_view
&& uladv
4633 ? _(" (reset view)") : "");
4638 = ((state_machine_regs
.op_index
+ uladv
)
4639 / linfo
.li_max_ops_per_insn
)
4640 * linfo
.li_min_insn_length
;
4641 state_machine_regs
.address
4643 state_machine_regs
.op_index
4644 = (state_machine_regs
.op_index
+ uladv
)
4645 % linfo
.li_max_ops_per_insn
;
4647 state_machine_regs
.view
= 0;
4648 printf (_(" Advance PC by %s to 0x%s[%d]%s\n"),
4649 dwarf_vmatoa ("u", uladv
),
4650 dwarf_vmatoa ("x", state_machine_regs
.address
),
4651 state_machine_regs
.op_index
,
4652 verbose_view
&& addrdelta
4653 ? _(" (reset view)") : "");
4657 case DW_LNS_advance_line
:
4658 READ_SLEB (adv
, data
, end
);
4659 state_machine_regs
.line
+= adv
;
4660 printf (_(" Advance Line by %s to %d\n"),
4661 dwarf_vmatoa ("d", adv
),
4662 state_machine_regs
.line
);
4665 case DW_LNS_set_file
:
4666 READ_ULEB (uladv
, data
, end
);
4667 printf (_(" Set File Name to entry %s in the File Name Table\n"),
4668 dwarf_vmatoa ("u", uladv
));
4669 state_machine_regs
.file
= uladv
;
4672 case DW_LNS_set_column
:
4673 READ_ULEB (uladv
, data
, end
);
4674 printf (_(" Set column to %s\n"),
4675 dwarf_vmatoa ("u", uladv
));
4676 state_machine_regs
.column
= uladv
;
4679 case DW_LNS_negate_stmt
:
4680 adv
= state_machine_regs
.is_stmt
;
4682 printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv
));
4683 state_machine_regs
.is_stmt
= adv
;
4686 case DW_LNS_set_basic_block
:
4687 printf (_(" Set basic block\n"));
4688 state_machine_regs
.basic_block
= 1;
4691 case DW_LNS_const_add_pc
:
4692 uladv
= ((255 - linfo
.li_opcode_base
) / linfo
.li_line_range
);
4693 if (linfo
.li_max_ops_per_insn
)
4695 uladv
*= linfo
.li_min_insn_length
;
4696 state_machine_regs
.address
+= uladv
;
4698 state_machine_regs
.view
= 0;
4699 printf (_(" Advance PC by constant %s to 0x%s%s\n"),
4700 dwarf_vmatoa ("u", uladv
),
4701 dwarf_vmatoa ("x", state_machine_regs
.address
),
4702 verbose_view
&& uladv
4703 ? _(" (reset view)") : "");
4708 = ((state_machine_regs
.op_index
+ uladv
)
4709 / linfo
.li_max_ops_per_insn
)
4710 * linfo
.li_min_insn_length
;
4711 state_machine_regs
.address
4713 state_machine_regs
.op_index
4714 = (state_machine_regs
.op_index
+ uladv
)
4715 % linfo
.li_max_ops_per_insn
;
4717 state_machine_regs
.view
= 0;
4718 printf (_(" Advance PC by constant %s to 0x%s[%d]%s\n"),
4719 dwarf_vmatoa ("u", uladv
),
4720 dwarf_vmatoa ("x", state_machine_regs
.address
),
4721 state_machine_regs
.op_index
,
4722 verbose_view
&& addrdelta
4723 ? _(" (reset view)") : "");
4727 case DW_LNS_fixed_advance_pc
:
4728 SAFE_BYTE_GET_AND_INC (uladv
, data
, 2, end
);
4729 state_machine_regs
.address
+= uladv
;
4730 state_machine_regs
.op_index
= 0;
4731 printf (_(" Advance PC by fixed size amount %s to 0x%s\n"),
4732 dwarf_vmatoa ("u", uladv
),
4733 dwarf_vmatoa ("x", state_machine_regs
.address
));
4734 /* Do NOT reset view. */
4737 case DW_LNS_set_prologue_end
:
4738 printf (_(" Set prologue_end to true\n"));
4741 case DW_LNS_set_epilogue_begin
:
4742 printf (_(" Set epilogue_begin to true\n"));
4745 case DW_LNS_set_isa
:
4746 READ_ULEB (uladv
, data
, end
);
4747 printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv
));
4751 printf (_(" Unknown opcode %d with operands: "), op_code
);
4753 if (standard_opcodes
!= NULL
)
4754 for (i
= standard_opcodes
[op_code
- 1]; i
> 0 ; --i
)
4756 READ_ULEB (uladv
, data
, end
);
4757 printf ("0x%s%s", dwarf_vmatoa ("x", uladv
),
4758 i
== 1 ? "" : ", ");
4773 unsigned char *name
;
4774 unsigned int directory_index
;
4775 unsigned int modification_date
;
4776 unsigned int length
;
4779 /* Output a decoded representation of the .debug_line section. */
4782 display_debug_lines_decoded (struct dwarf_section
* section
,
4783 unsigned char * start
,
4784 unsigned char * data
,
4785 unsigned char * end
,
4788 static DWARF2_Internal_LineInfo saved_linfo
;
4790 introduce (section
, false);
4794 /* This loop amounts to one iteration per compilation unit. */
4795 DWARF2_Internal_LineInfo linfo
;
4796 unsigned char *standard_opcodes
;
4797 unsigned char *end_of_sequence
;
4799 File_Entry
*file_table
= NULL
;
4800 unsigned int n_files
= 0;
4801 unsigned char **directory_table
= NULL
;
4802 dwarf_vma n_directories
= 0;
4804 if (startswith (section
->name
, ".debug_line.")
4805 /* Note: the following does not apply to .debug_line.dwo sections.
4806 These are full debug_line sections. */
4807 && strcmp (section
->name
, ".debug_line.dwo") != 0)
4809 /* See comment in display_debug_lines_raw(). */
4810 end_of_sequence
= end
;
4811 standard_opcodes
= NULL
;
4812 linfo
= saved_linfo
;
4813 /* PR 17531: file: 0522b371. */
4814 if (linfo
.li_line_range
== 0)
4816 warn (_("Partial .debug_line. section encountered without a prior full .debug_line section\n"));
4819 reset_state_machine (linfo
.li_default_is_stmt
);
4823 unsigned char *hdrptr
;
4825 if ((hdrptr
= read_debug_line_header (section
, data
, end
, & linfo
,
4826 & end_of_sequence
)) == NULL
)
4829 /* PR 17531: file: 0522b371. */
4830 if (linfo
.li_line_range
== 0)
4832 warn (_("Line range of 0 is invalid, using 1 instead\n"));
4833 linfo
.li_line_range
= 1;
4835 reset_state_machine (linfo
.li_default_is_stmt
);
4837 /* Save a pointer to the contents of the Opcodes table. */
4838 standard_opcodes
= hdrptr
;
4840 /* Traverse the Directory table just to count entries. */
4841 data
= standard_opcodes
+ linfo
.li_opcode_base
- 1;
4845 warn (_("opcode base of %d extends beyond end of section\n"),
4846 linfo
.li_opcode_base
);
4850 if (linfo
.li_version
>= 5)
4852 unsigned char *format_start
, format_count
, *format
;
4853 dwarf_vma formati
, entryi
;
4855 load_debug_section_with_follow (line_str
, fileptr
);
4857 /* Skip directories format. */
4858 SAFE_BYTE_GET_AND_INC (format_count
, data
, 1, end
);
4859 if (do_checks
&& format_count
> 1)
4860 warn (_("Unexpectedly large number of columns in the directory name table (%u)\n"),
4862 format_start
= data
;
4863 for (formati
= 0; formati
< format_count
; formati
++)
4865 SKIP_ULEB (data
, end
);
4866 SKIP_ULEB (data
, end
);
4869 READ_ULEB (n_directories
, data
, end
);
4872 warn (_("Corrupt directories list\n"));
4876 if (n_directories
== 0)
4877 directory_table
= NULL
;
4879 directory_table
= (unsigned char **)
4880 xmalloc (n_directories
* sizeof (unsigned char *));
4882 for (entryi
= 0; entryi
< n_directories
; entryi
++)
4884 unsigned char **pathp
= &directory_table
[entryi
];
4886 format
= format_start
;
4887 for (formati
= 0; formati
< format_count
; formati
++)
4889 dwarf_vma content_type
, form
;
4892 READ_ULEB (content_type
, format
, end
);
4893 READ_ULEB (form
, format
, end
);
4896 warn (_("Corrupt directories list\n"));
4899 switch (content_type
)
4904 case DW_FORM_string
:
4907 case DW_FORM_line_strp
:
4908 SAFE_BYTE_GET (uvalue
, data
, linfo
.li_offset_size
,
4910 /* Remove const by the cast. */
4911 *pathp
= (unsigned char *)
4912 fetch_indirect_line_string (uvalue
);
4917 data
= read_and_display_attr_value (0, form
, 0, start
,
4919 linfo
.li_offset_size
,
4926 warn (_("Corrupt directories list\n"));
4931 /* Skip files format. */
4932 SAFE_BYTE_GET_AND_INC (format_count
, data
, 1, end
);
4933 if (do_checks
&& format_count
> 5)
4934 warn (_("Unexpectedly large number of columns in the file name table (%u)\n"),
4936 format_start
= data
;
4937 for (formati
= 0; formati
< format_count
; formati
++)
4939 SKIP_ULEB (data
, end
);
4940 SKIP_ULEB (data
, end
);
4943 READ_ULEB (n_files
, data
, end
);
4944 if (data
>= end
&& n_files
> 0)
4946 warn (_("Corrupt file name list\n"));
4953 file_table
= (File_Entry
*) xcalloc (1, n_files
4954 * sizeof (File_Entry
));
4956 for (entryi
= 0; entryi
< n_files
; entryi
++)
4958 File_Entry
*file
= &file_table
[entryi
];
4960 format
= format_start
;
4961 for (formati
= 0; formati
< format_count
; formati
++)
4963 dwarf_vma content_type
, form
;
4967 READ_ULEB (content_type
, format
, end
);
4968 READ_ULEB (form
, format
, end
);
4971 warn (_("Corrupt file name list\n"));
4974 switch (content_type
)
4979 case DW_FORM_string
:
4982 case DW_FORM_line_strp
:
4983 SAFE_BYTE_GET (uvalue
, data
, linfo
.li_offset_size
,
4985 /* Remove const by the cast. */
4986 file
->name
= (unsigned char *)
4987 fetch_indirect_line_string (uvalue
);
4991 case DW_LNCT_directory_index
:
4995 SAFE_BYTE_GET (file
->directory_index
, data
, 1,
4999 SAFE_BYTE_GET (file
->directory_index
, data
, 2,
5004 READ_ULEB (file
->directory_index
, tmp
, end
);
5009 data
= read_and_display_attr_value (0, form
, 0, start
,
5011 linfo
.li_offset_size
,
5018 warn (_("Corrupt file name list\n"));
5027 unsigned char *ptr_directory_table
= data
;
5029 while (data
< end
&& *data
!= 0)
5031 data
+= strnlen ((char *) data
, end
- data
);
5040 warn (_("directory table ends unexpectedly\n"));
5045 /* Go through the directory table again to save the directories. */
5046 directory_table
= (unsigned char **)
5047 xmalloc (n_directories
* sizeof (unsigned char *));
5050 while (*ptr_directory_table
!= 0)
5052 directory_table
[i
] = ptr_directory_table
;
5054 += strlen ((char *) ptr_directory_table
) + 1;
5058 /* Skip the NUL at the end of the table. */
5061 /* Traverse the File Name table just to count the entries. */
5062 if (data
< end
&& *data
!= 0)
5064 unsigned char *ptr_file_name_table
= data
;
5066 while (data
< end
&& *data
!= 0)
5068 /* Skip Name, directory index, last modification
5069 time and length of file. */
5070 data
+= strnlen ((char *) data
, end
- data
);
5073 SKIP_ULEB (data
, end
);
5074 SKIP_ULEB (data
, end
);
5075 SKIP_ULEB (data
, end
);
5081 warn (_("file table ends unexpectedly\n"));
5086 /* Go through the file table again to save the strings. */
5087 file_table
= (File_Entry
*) xmalloc (n_files
* sizeof (File_Entry
));
5090 while (*ptr_file_name_table
!= 0)
5092 file_table
[i
].name
= ptr_file_name_table
;
5094 += strlen ((char *) ptr_file_name_table
) + 1;
5096 /* We are not interested in directory, time or size. */
5097 READ_ULEB (file_table
[i
].directory_index
,
5098 ptr_file_name_table
, end
);
5099 READ_ULEB (file_table
[i
].modification_date
,
5100 ptr_file_name_table
, end
);
5101 READ_ULEB (file_table
[i
].length
,
5102 ptr_file_name_table
, end
);
5108 /* Skip the NUL at the end of the table. */
5112 /* Print the Compilation Unit's name and a header. */
5113 if (file_table
== NULL
)
5114 printf (_("CU: No directory table\n"));
5115 else if (directory_table
== NULL
)
5116 printf (_("CU: %s:\n"), file_table
[0].name
);
5119 unsigned int ix
= file_table
[0].directory_index
;
5120 const char *directory
;
5125 else if (n_directories
== 0)
5126 directory
= _("<unknown>");
5127 else if (ix
> n_directories
)
5129 warn (_("directory index %u > number of directories %s\n"),
5130 ix
, dwarf_vmatoa ("u", n_directories
));
5131 directory
= _("<corrupt>");
5134 directory
= (char *) directory_table
[ix
- 1];
5136 if (do_wide
|| strlen (directory
) < 76)
5137 printf (_("CU: %s/%s:\n"), directory
, file_table
[0].name
);
5139 printf ("%s:\n", file_table
[0].name
);
5143 printf (_("File name Line number Starting address View Stmt\n"));
5145 printf (_("CU: Empty file name table\n"));
5146 saved_linfo
= linfo
;
5149 /* This loop iterates through the Dwarf Line Number Program. */
5150 while (data
< end_of_sequence
)
5152 unsigned char op_code
;
5155 unsigned long int uladv
;
5156 int is_special_opcode
= 0;
5161 if (op_code
>= linfo
.li_opcode_base
)
5163 op_code
-= linfo
.li_opcode_base
;
5164 uladv
= (op_code
/ linfo
.li_line_range
);
5165 if (linfo
.li_max_ops_per_insn
== 1)
5167 uladv
*= linfo
.li_min_insn_length
;
5168 state_machine_regs
.address
+= uladv
;
5170 state_machine_regs
.view
= 0;
5175 = ((state_machine_regs
.op_index
+ uladv
)
5176 / linfo
.li_max_ops_per_insn
)
5177 * linfo
.li_min_insn_length
;
5178 state_machine_regs
.address
5180 state_machine_regs
.op_index
5181 = (state_machine_regs
.op_index
+ uladv
)
5182 % linfo
.li_max_ops_per_insn
;
5184 state_machine_regs
.view
= 0;
5187 adv
= (op_code
% linfo
.li_line_range
) + linfo
.li_line_base
;
5188 state_machine_regs
.line
+= adv
;
5189 is_special_opcode
= 1;
5190 /* Increment view after printing this row. */
5195 case DW_LNS_extended_op
:
5197 unsigned int ext_op_code_len
;
5198 unsigned char ext_op_code
;
5199 unsigned char *op_code_end
;
5200 unsigned char *op_code_data
= data
;
5202 READ_ULEB (ext_op_code_len
, op_code_data
, end_of_sequence
);
5203 op_code_end
= op_code_data
+ ext_op_code_len
;
5204 if (ext_op_code_len
== 0 || op_code_end
> end_of_sequence
)
5206 warn (_("Badly formed extended line op encountered!\n"));
5209 ext_op_code
= *op_code_data
++;
5213 switch (ext_op_code
)
5215 case DW_LNE_end_sequence
:
5216 /* Reset stuff after printing this row. */
5218 case DW_LNE_set_address
:
5219 SAFE_BYTE_GET_AND_INC (state_machine_regs
.address
,
5221 op_code_end
- op_code_data
,
5223 state_machine_regs
.op_index
= 0;
5224 state_machine_regs
.view
= 0;
5226 case DW_LNE_define_file
:
5227 file_table
= (File_Entry
*) xrealloc
5228 (file_table
, (n_files
+ 1) * sizeof (File_Entry
));
5230 ++state_machine_regs
.last_file_entry
;
5231 /* Source file name. */
5232 file_table
[n_files
].name
= op_code_data
;
5233 op_code_data
+= strlen ((char *) op_code_data
) + 1;
5234 /* Directory index. */
5235 READ_ULEB (file_table
[n_files
].directory_index
,
5236 op_code_data
, op_code_end
);
5237 /* Last modification time. */
5238 READ_ULEB (file_table
[n_files
].modification_date
,
5239 op_code_data
, op_code_end
);
5241 READ_ULEB (file_table
[n_files
].length
,
5242 op_code_data
, op_code_end
);
5246 case DW_LNE_set_discriminator
:
5247 case DW_LNE_HP_set_sequence
:
5248 /* Simply ignored. */
5252 printf (_("UNKNOWN (%u): length %ld\n"),
5253 ext_op_code
, (long int) (op_code_data
- data
));
5260 /* Increment view after printing this row. */
5263 case DW_LNS_advance_pc
:
5264 READ_ULEB (uladv
, data
, end
);
5265 if (linfo
.li_max_ops_per_insn
== 1)
5267 uladv
*= linfo
.li_min_insn_length
;
5268 state_machine_regs
.address
+= uladv
;
5270 state_machine_regs
.view
= 0;
5275 = ((state_machine_regs
.op_index
+ uladv
)
5276 / linfo
.li_max_ops_per_insn
)
5277 * linfo
.li_min_insn_length
;
5278 state_machine_regs
.address
5280 state_machine_regs
.op_index
5281 = (state_machine_regs
.op_index
+ uladv
)
5282 % linfo
.li_max_ops_per_insn
;
5284 state_machine_regs
.view
= 0;
5288 case DW_LNS_advance_line
:
5289 READ_SLEB (adv
, data
, end
);
5290 state_machine_regs
.line
+= adv
;
5293 case DW_LNS_set_file
:
5294 READ_ULEB (uladv
, data
, end
);
5295 state_machine_regs
.file
= uladv
;
5298 unsigned file
= state_machine_regs
.file
- 1;
5301 if (file_table
== NULL
|| n_files
== 0)
5302 printf (_("\n [Use file table entry %d]\n"), file
);
5304 else if (file
>= n_files
)
5306 warn (_("file index %u > number of files %u\n"), file
+ 1, n_files
);
5307 printf (_("\n <over large file table index %u>"), file
);
5309 else if ((dir
= file_table
[file
].directory_index
) == 0)
5310 /* If directory index is 0, that means current directory. */
5311 printf ("\n./%s:[++]\n", file_table
[file
].name
);
5312 else if (directory_table
== NULL
|| n_directories
== 0)
5313 printf (_("\n [Use file %s in directory table entry %d]\n"),
5314 file_table
[file
].name
, dir
);
5316 else if (dir
> n_directories
)
5318 warn (_("directory index %u > number of directories %s\n"),
5319 dir
, dwarf_vmatoa ("u", n_directories
));
5320 printf (_("\n <over large directory table entry %u>\n"), dir
);
5323 printf ("\n%s/%s:\n",
5324 /* The directory index starts counting at 1. */
5325 directory_table
[dir
- 1], file_table
[file
].name
);
5329 case DW_LNS_set_column
:
5330 READ_ULEB (uladv
, data
, end
);
5331 state_machine_regs
.column
= uladv
;
5334 case DW_LNS_negate_stmt
:
5335 adv
= state_machine_regs
.is_stmt
;
5337 state_machine_regs
.is_stmt
= adv
;
5340 case DW_LNS_set_basic_block
:
5341 state_machine_regs
.basic_block
= 1;
5344 case DW_LNS_const_add_pc
:
5345 uladv
= ((255 - linfo
.li_opcode_base
) / linfo
.li_line_range
);
5346 if (linfo
.li_max_ops_per_insn
== 1)
5348 uladv
*= linfo
.li_min_insn_length
;
5349 state_machine_regs
.address
+= uladv
;
5351 state_machine_regs
.view
= 0;
5356 = ((state_machine_regs
.op_index
+ uladv
)
5357 / linfo
.li_max_ops_per_insn
)
5358 * linfo
.li_min_insn_length
;
5359 state_machine_regs
.address
5361 state_machine_regs
.op_index
5362 = (state_machine_regs
.op_index
+ uladv
)
5363 % linfo
.li_max_ops_per_insn
;
5365 state_machine_regs
.view
= 0;
5369 case DW_LNS_fixed_advance_pc
:
5370 SAFE_BYTE_GET_AND_INC (uladv
, data
, 2, end
);
5371 state_machine_regs
.address
+= uladv
;
5372 state_machine_regs
.op_index
= 0;
5373 /* Do NOT reset view. */
5376 case DW_LNS_set_prologue_end
:
5379 case DW_LNS_set_epilogue_begin
:
5382 case DW_LNS_set_isa
:
5383 READ_ULEB (uladv
, data
, end
);
5384 printf (_(" Set ISA to %lu\n"), uladv
);
5388 printf (_(" Unknown opcode %d with operands: "), op_code
);
5390 if (standard_opcodes
!= NULL
)
5391 for (i
= standard_opcodes
[op_code
- 1]; i
> 0 ; --i
)
5395 READ_ULEB (val
, data
, end
);
5396 printf ("0x%s%s", dwarf_vmatoa ("x", val
),
5397 i
== 1 ? "" : ", ");
5403 /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row
5404 to the DWARF address/line matrix. */
5405 if ((is_special_opcode
) || (xop
== -DW_LNE_end_sequence
)
5406 || (xop
== DW_LNS_copy
))
5408 const unsigned int MAX_FILENAME_LENGTH
= 35;
5410 char *newFileName
= NULL
;
5411 size_t fileNameLength
;
5415 unsigned indx
= state_machine_regs
.file
- 1;
5417 if (indx
>= n_files
)
5419 warn (_("corrupt file index %u encountered\n"), indx
);
5420 fileName
= _("<corrupt>");
5423 fileName
= (char *) file_table
[indx
].name
;
5426 fileName
= _("<unknown>");
5428 fileNameLength
= strlen (fileName
);
5429 newFileName
= fileName
;
5430 if (fileNameLength
> MAX_FILENAME_LENGTH
&& !do_wide
)
5432 newFileName
= (char *) xmalloc (MAX_FILENAME_LENGTH
+ 1);
5433 /* Truncate file name */
5434 memcpy (newFileName
,
5435 fileName
+ fileNameLength
- MAX_FILENAME_LENGTH
,
5436 MAX_FILENAME_LENGTH
);
5437 newFileName
[MAX_FILENAME_LENGTH
] = 0;
5440 /* A row with end_seq set to true has a meaningful address, but
5441 the other information in the same row is not significant.
5442 In such a row, print line as "-", and don't print
5444 if (!do_wide
|| fileNameLength
<= MAX_FILENAME_LENGTH
)
5446 if (linfo
.li_max_ops_per_insn
== 1)
5448 if (xop
== -DW_LNE_end_sequence
)
5449 printf ("%-35s %11s %#18" DWARF_VMA_FMT
"x",
5451 state_machine_regs
.address
);
5453 printf ("%-35s %11d %#18" DWARF_VMA_FMT
"x",
5454 newFileName
, state_machine_regs
.line
,
5455 state_machine_regs
.address
);
5459 if (xop
== -DW_LNE_end_sequence
)
5460 printf ("%-35s %11s %#18" DWARF_VMA_FMT
"x[%d]",
5462 state_machine_regs
.address
,
5463 state_machine_regs
.op_index
);
5465 printf ("%-35s %11d %#18" DWARF_VMA_FMT
"x[%d]",
5466 newFileName
, state_machine_regs
.line
,
5467 state_machine_regs
.address
,
5468 state_machine_regs
.op_index
);
5473 if (linfo
.li_max_ops_per_insn
== 1)
5475 if (xop
== -DW_LNE_end_sequence
)
5476 printf ("%s %11s %#18" DWARF_VMA_FMT
"x",
5478 state_machine_regs
.address
);
5480 printf ("%s %11d %#18" DWARF_VMA_FMT
"x",
5481 newFileName
, state_machine_regs
.line
,
5482 state_machine_regs
.address
);
5486 if (xop
== -DW_LNE_end_sequence
)
5487 printf ("%s %11s %#18" DWARF_VMA_FMT
"x[%d]",
5489 state_machine_regs
.address
,
5490 state_machine_regs
.op_index
);
5492 printf ("%s %11d %#18" DWARF_VMA_FMT
"x[%d]",
5493 newFileName
, state_machine_regs
.line
,
5494 state_machine_regs
.address
,
5495 state_machine_regs
.op_index
);
5499 if (xop
!= -DW_LNE_end_sequence
)
5501 if (state_machine_regs
.view
)
5502 printf (" %6u", state_machine_regs
.view
);
5506 if (state_machine_regs
.is_stmt
)
5511 state_machine_regs
.view
++;
5513 if (xop
== -DW_LNE_end_sequence
)
5515 reset_state_machine (linfo
.li_default_is_stmt
);
5519 if (newFileName
!= fileName
)
5531 if (directory_table
)
5533 free (directory_table
);
5534 directory_table
= NULL
;
5545 display_debug_lines (struct dwarf_section
*section
, void *file
)
5547 unsigned char *data
= section
->start
;
5548 unsigned char *end
= data
+ section
->size
;
5550 int retValDecoded
= 1;
5552 if (do_debug_lines
== 0)
5553 do_debug_lines
|= FLAG_DEBUG_LINES_RAW
;
5555 if (do_debug_lines
& FLAG_DEBUG_LINES_RAW
)
5556 retValRaw
= display_debug_lines_raw (section
, data
, end
, file
);
5558 if (do_debug_lines
& FLAG_DEBUG_LINES_DECODED
)
5559 retValDecoded
= display_debug_lines_decoded (section
, data
, data
, end
, file
);
5561 if (!retValRaw
|| !retValDecoded
)
5568 find_debug_info_for_offset (unsigned long offset
)
5572 if (num_debug_info_entries
== DEBUG_INFO_UNAVAILABLE
)
5575 for (i
= 0; i
< num_debug_info_entries
; i
++)
5576 if (debug_information
[i
].cu_offset
== offset
)
5577 return debug_information
+ i
;
5583 get_gdb_index_symbol_kind_name (gdb_index_symbol_kind kind
)
5585 /* See gdb/gdb-index.h. */
5586 static const char * const kinds
[] =
5598 return _ (kinds
[kind
]);
5602 display_debug_pubnames_worker (struct dwarf_section
*section
,
5603 void *file ATTRIBUTE_UNUSED
,
5606 DWARF2_Internal_PubNames names
;
5607 unsigned char *start
= section
->start
;
5608 unsigned char *end
= start
+ section
->size
;
5610 /* It does not matter if this load fails,
5611 we test for that later on. */
5612 load_debug_info (file
);
5614 introduce (section
, false);
5618 unsigned char *data
;
5619 unsigned long sec_off
= start
- section
->start
;
5620 unsigned int offset_size
;
5622 SAFE_BYTE_GET_AND_INC (names
.pn_length
, start
, 4, end
);
5623 if (names
.pn_length
== 0xffffffff)
5625 SAFE_BYTE_GET_AND_INC (names
.pn_length
, start
, 8, end
);
5631 if (names
.pn_length
> (size_t) (end
- start
))
5633 warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
5636 dwarf_vmatoa ("x", names
.pn_length
));
5641 start
+= names
.pn_length
;
5643 SAFE_BYTE_GET_AND_INC (names
.pn_version
, data
, 2, start
);
5644 SAFE_BYTE_GET_AND_INC (names
.pn_offset
, data
, offset_size
, start
);
5646 if (num_debug_info_entries
!= DEBUG_INFO_UNAVAILABLE
5647 && num_debug_info_entries
> 0
5648 && find_debug_info_for_offset (names
.pn_offset
) == NULL
)
5649 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
5650 (unsigned long) names
.pn_offset
, section
->name
);
5652 SAFE_BYTE_GET_AND_INC (names
.pn_size
, data
, offset_size
, start
);
5654 printf (_(" Length: %ld\n"),
5655 (long) names
.pn_length
);
5656 printf (_(" Version: %d\n"),
5658 printf (_(" Offset into .debug_info section: 0x%lx\n"),
5659 (unsigned long) names
.pn_offset
);
5660 printf (_(" Size of area in .debug_info section: %ld\n"),
5661 (long) names
.pn_size
);
5663 if (names
.pn_version
!= 2 && names
.pn_version
!= 3)
5665 static int warned
= 0;
5669 warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
5677 printf (_("\n Offset Kind Name\n"));
5679 printf (_("\n Offset\tName\n"));
5683 bfd_size_type maxprint
;
5686 SAFE_BYTE_GET_AND_INC (offset
, data
, offset_size
, start
);
5693 maxprint
= (start
- data
) - 1;
5697 unsigned int kind_data
;
5698 gdb_index_symbol_kind kind
;
5699 const char *kind_name
;
5702 SAFE_BYTE_GET_AND_INC (kind_data
, data
, 1, start
);
5704 /* GCC computes the kind as the upper byte in the CU index
5705 word, and then right shifts it by the CU index size.
5706 Left shift KIND to where the gdb-index.h accessor macros
5708 kind_data
<<= GDB_INDEX_CU_BITSIZE
;
5709 kind
= GDB_INDEX_SYMBOL_KIND_VALUE (kind_data
);
5710 kind_name
= get_gdb_index_symbol_kind_name (kind
);
5711 is_static
= GDB_INDEX_SYMBOL_STATIC_VALUE (kind_data
);
5712 printf (" %-6lx %s,%-10s %.*s\n",
5713 (unsigned long) offset
, is_static
? _("s") : _("g"),
5714 kind_name
, (int) maxprint
, data
);
5717 printf (" %-6lx\t%.*s\n",
5718 (unsigned long) offset
, (int) maxprint
, data
);
5720 data
+= strnlen ((char *) data
, maxprint
);
5733 display_debug_pubnames (struct dwarf_section
*section
, void *file
)
5735 return display_debug_pubnames_worker (section
, file
, 0);
5739 display_debug_gnu_pubnames (struct dwarf_section
*section
, void *file
)
5741 return display_debug_pubnames_worker (section
, file
, 1);
5745 display_debug_macinfo (struct dwarf_section
*section
,
5746 void *file ATTRIBUTE_UNUSED
)
5748 unsigned char *start
= section
->start
;
5749 unsigned char *end
= start
+ section
->size
;
5750 unsigned char *curr
= start
;
5751 enum dwarf_macinfo_record_type op
;
5753 introduce (section
, false);
5757 unsigned int lineno
;
5758 const unsigned char *string
;
5760 op
= (enum dwarf_macinfo_record_type
) *curr
;
5765 case DW_MACINFO_start_file
:
5767 unsigned int filenum
;
5769 READ_ULEB (lineno
, curr
, end
);
5770 READ_ULEB (filenum
, curr
, end
);
5771 printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"),
5776 case DW_MACINFO_end_file
:
5777 printf (_(" DW_MACINFO_end_file\n"));
5780 case DW_MACINFO_define
:
5781 READ_ULEB (lineno
, curr
, end
);
5783 curr
+= strnlen ((char *) string
, end
- string
);
5784 printf (_(" DW_MACINFO_define - lineno : %d macro : %*s\n"),
5785 lineno
, (int) (curr
- string
), string
);
5790 case DW_MACINFO_undef
:
5791 READ_ULEB (lineno
, curr
, end
);
5793 curr
+= strnlen ((char *) string
, end
- string
);
5794 printf (_(" DW_MACINFO_undef - lineno : %d macro : %*s\n"),
5795 lineno
, (int) (curr
- string
), string
);
5800 case DW_MACINFO_vendor_ext
:
5802 unsigned int constant
;
5804 READ_ULEB (constant
, curr
, end
);
5806 curr
+= strnlen ((char *) string
, end
- string
);
5807 printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %*s\n"),
5808 constant
, (int) (curr
- string
), string
);
5819 /* Given LINE_OFFSET into the .debug_line section, attempt to return
5820 filename and dirname corresponding to file name table entry with index
5821 FILEIDX. Return NULL on failure. */
5823 static unsigned char *
5824 get_line_filename_and_dirname (dwarf_vma line_offset
,
5826 unsigned char **dir_name
)
5828 struct dwarf_section
*section
= &debug_displays
[line
].section
;
5829 unsigned char *hdrptr
, *dirtable
, *file_name
;
5830 unsigned int offset_size
;
5831 unsigned int version
, opcode_base
;
5832 dwarf_vma length
, diridx
;
5833 const unsigned char * end
;
5836 if (section
->start
== NULL
5837 || line_offset
>= section
->size
5841 hdrptr
= section
->start
+ line_offset
;
5842 end
= section
->start
+ section
->size
;
5844 SAFE_BYTE_GET_AND_INC (length
, hdrptr
, 4, end
);
5845 if (length
== 0xffffffff)
5847 /* This section is 64-bit DWARF 3. */
5848 SAFE_BYTE_GET_AND_INC (length
, hdrptr
, 8, end
);
5854 if (length
> (size_t) (end
- hdrptr
)
5855 || length
< 2 + offset_size
+ 1 + 3 + 1)
5857 end
= hdrptr
+ length
;
5859 SAFE_BYTE_GET_AND_INC (version
, hdrptr
, 2, end
);
5860 if (version
!= 2 && version
!= 3 && version
!= 4)
5862 hdrptr
+= offset_size
+ 1;/* Skip prologue_length and min_insn_length. */
5864 hdrptr
++; /* Skip max_ops_per_insn. */
5865 hdrptr
+= 3; /* Skip default_is_stmt, line_base, line_range. */
5867 SAFE_BYTE_GET_AND_INC (opcode_base
, hdrptr
, 1, end
);
5868 if (opcode_base
== 0
5869 || opcode_base
- 1 >= (size_t) (end
- hdrptr
))
5872 hdrptr
+= opcode_base
- 1;
5875 /* Skip over dirname table. */
5876 while (*hdrptr
!= '\0')
5878 hdrptr
+= strnlen ((char *) hdrptr
, end
- hdrptr
);
5884 hdrptr
++; /* Skip the NUL at the end of the table. */
5886 /* Now skip over preceding filename table entries. */
5887 for (; hdrptr
< end
&& *hdrptr
!= '\0' && fileidx
> 1; fileidx
--)
5889 hdrptr
+= strnlen ((char *) hdrptr
, end
- hdrptr
);
5892 SKIP_ULEB (hdrptr
, end
);
5893 SKIP_ULEB (hdrptr
, end
);
5894 SKIP_ULEB (hdrptr
, end
);
5896 if (hdrptr
>= end
|| *hdrptr
== '\0')
5900 hdrptr
+= strnlen ((char *) hdrptr
, end
- hdrptr
);
5905 READ_ULEB (diridx
, hdrptr
, end
);
5908 for (; dirtable
< end
&& *dirtable
!= '\0' && diridx
> 1; diridx
--)
5910 dirtable
+= strnlen ((char *) dirtable
, end
- dirtable
);
5914 if (dirtable
>= end
|| *dirtable
== '\0')
5916 *dir_name
= dirtable
;
5921 display_debug_macro (struct dwarf_section
*section
,
5924 unsigned char *start
= section
->start
;
5925 unsigned char *end
= start
+ section
->size
;
5926 unsigned char *curr
= start
;
5927 unsigned char *extended_op_buf
[256];
5928 bool is_dwo
= false;
5929 const char *suffix
= strrchr (section
->name
, '.');
5931 if (suffix
&& strcmp (suffix
, ".dwo") == 0)
5934 load_debug_section_with_follow (str
, file
);
5935 load_debug_section_with_follow (line
, file
);
5936 load_debug_section_with_follow (str_index
, file
);
5938 introduce (section
, false);
5942 unsigned int lineno
, version
, flags
;
5943 unsigned int offset_size
;
5944 const unsigned char *string
;
5945 dwarf_vma line_offset
= 0, sec_offset
= curr
- start
, offset
;
5946 unsigned char **extended_ops
= NULL
;
5948 SAFE_BYTE_GET_AND_INC (version
, curr
, 2, end
);
5949 if (version
!= 4 && version
!= 5)
5951 error (_("Expected to find a version number of 4 or 5 in section %s but found %d instead\n"),
5952 section
->name
, version
);
5956 SAFE_BYTE_GET_AND_INC (flags
, curr
, 1, end
);
5957 offset_size
= (flags
& 1) ? 8 : 4;
5958 printf (_(" Offset: 0x%lx\n"),
5959 (unsigned long) sec_offset
);
5960 printf (_(" Version: %d\n"), version
);
5961 printf (_(" Offset size: %d\n"), offset_size
);
5964 SAFE_BYTE_GET_AND_INC (line_offset
, curr
, offset_size
, end
);
5965 printf (_(" Offset into .debug_line: 0x%lx\n"),
5966 (unsigned long) line_offset
);
5970 unsigned int i
, count
, op
;
5973 SAFE_BYTE_GET_AND_INC (count
, curr
, 1, end
);
5975 memset (extended_op_buf
, 0, sizeof (extended_op_buf
));
5976 extended_ops
= extended_op_buf
;
5979 printf (_(" Extension opcode arguments:\n"));
5980 for (i
= 0; i
< count
; i
++)
5982 SAFE_BYTE_GET_AND_INC (op
, curr
, 1, end
);
5983 extended_ops
[op
] = curr
;
5984 READ_ULEB (nargs
, curr
, end
);
5986 printf (_(" DW_MACRO_%02x has no arguments\n"), op
);
5989 printf (_(" DW_MACRO_%02x arguments: "), op
);
5990 for (n
= 0; n
< nargs
; n
++)
5994 SAFE_BYTE_GET_AND_INC (form
, curr
, 1, end
);
5995 printf ("%s%s", get_FORM_name (form
),
5996 n
== nargs
- 1 ? "\n" : ", ");
6006 case DW_FORM_block1
:
6007 case DW_FORM_block2
:
6008 case DW_FORM_block4
:
6010 case DW_FORM_string
:
6012 case DW_FORM_sec_offset
:
6015 error (_("Invalid extension opcode form %s\n"),
6016 get_FORM_name (form
));
6032 error (_(".debug_macro section not zero terminated\n"));
6036 SAFE_BYTE_GET_AND_INC (op
, curr
, 1, end
);
6042 case DW_MACRO_define
:
6043 READ_ULEB (lineno
, curr
, end
);
6045 curr
+= strnlen ((char *) string
, end
- string
);
6046 printf (_(" DW_MACRO_define - lineno : %d macro : %*s\n"),
6047 lineno
, (int) (curr
- string
), string
);
6052 case DW_MACRO_undef
:
6053 READ_ULEB (lineno
, curr
, end
);
6055 curr
+= strnlen ((char *) string
, end
- string
);
6056 printf (_(" DW_MACRO_undef - lineno : %d macro : %*s\n"),
6057 lineno
, (int) (curr
- string
), string
);
6062 case DW_MACRO_start_file
:
6064 unsigned int filenum
;
6065 unsigned char *file_name
= NULL
, *dir_name
= NULL
;
6067 READ_ULEB (lineno
, curr
, end
);
6068 READ_ULEB (filenum
, curr
, end
);
6070 if ((flags
& 2) == 0)
6071 error (_("DW_MACRO_start_file used, but no .debug_line offset provided.\n"));
6074 = get_line_filename_and_dirname (line_offset
, filenum
,
6076 if (file_name
== NULL
)
6077 printf (_(" DW_MACRO_start_file - lineno: %d filenum: %d\n"),
6080 printf (_(" DW_MACRO_start_file - lineno: %d filenum: %d filename: %s%s%s\n"),
6082 dir_name
!= NULL
? (const char *) dir_name
: "",
6083 dir_name
!= NULL
? "/" : "", file_name
);
6087 case DW_MACRO_end_file
:
6088 printf (_(" DW_MACRO_end_file\n"));
6091 case DW_MACRO_define_strp
:
6092 READ_ULEB (lineno
, curr
, end
);
6093 if (version
== 4 && is_dwo
)
6094 READ_ULEB (offset
, curr
, end
);
6096 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6097 string
= fetch_indirect_string (offset
);
6098 printf (_(" DW_MACRO_define_strp - lineno : %d macro : %s\n"),
6102 case DW_MACRO_undef_strp
:
6103 READ_ULEB (lineno
, curr
, end
);
6104 if (version
== 4 && is_dwo
)
6105 READ_ULEB (offset
, curr
, end
);
6107 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6108 string
= fetch_indirect_string (offset
);
6109 printf (_(" DW_MACRO_undef_strp - lineno : %d macro : %s\n"),
6113 case DW_MACRO_import
:
6114 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6115 printf (_(" DW_MACRO_import - offset : 0x%lx\n"),
6116 (unsigned long) offset
);
6119 case DW_MACRO_define_sup
:
6120 READ_ULEB (lineno
, curr
, end
);
6121 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6122 printf (_(" DW_MACRO_define_sup - lineno : %d macro offset : 0x%lx\n"),
6123 lineno
, (unsigned long) offset
);
6126 case DW_MACRO_undef_sup
:
6127 READ_ULEB (lineno
, curr
, end
);
6128 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6129 printf (_(" DW_MACRO_undef_sup - lineno : %d macro offset : 0x%lx\n"),
6130 lineno
, (unsigned long) offset
);
6133 case DW_MACRO_import_sup
:
6134 SAFE_BYTE_GET_AND_INC (offset
, curr
, offset_size
, end
);
6135 printf (_(" DW_MACRO_import_sup - offset : 0x%lx\n"),
6136 (unsigned long) offset
);
6139 case DW_MACRO_define_strx
:
6140 case DW_MACRO_undef_strx
:
6141 READ_ULEB (lineno
, curr
, end
);
6142 READ_ULEB (offset
, curr
, end
);
6143 string
= (const unsigned char *)
6144 fetch_indexed_string (offset
, NULL
, offset_size
, false);
6145 if (op
== DW_MACRO_define_strx
)
6146 printf (" DW_MACRO_define_strx ");
6148 printf (" DW_MACRO_undef_strx ");
6150 printf (_("(with offset %s) "), dwarf_vmatoa ("x", offset
));
6151 printf (_("lineno : %d macro : %s\n"),
6156 if (op
>= DW_MACRO_lo_user
&& op
<= DW_MACRO_hi_user
)
6158 printf (_(" <Target Specific macro op: %#x - UNHANDLED"), op
);
6162 if (extended_ops
== NULL
|| extended_ops
[op
] == NULL
)
6164 error (_(" Unknown macro opcode %02x seen\n"), op
);
6169 /* Skip over unhandled opcodes. */
6171 unsigned char *desc
= extended_ops
[op
];
6172 READ_ULEB (nargs
, desc
, end
);
6175 printf (_(" DW_MACRO_%02x\n"), op
);
6178 printf (_(" DW_MACRO_%02x -"), op
);
6179 for (n
= 0; n
< nargs
; n
++)
6183 /* DW_FORM_implicit_const is not expected here. */
6184 SAFE_BYTE_GET_AND_INC (val
, desc
, 1, end
);
6186 = read_and_display_attr_value (0, val
, 0,
6187 start
, curr
, end
, 0, 0, offset_size
,
6188 version
, NULL
, 0, NULL
,
6206 display_debug_abbrev (struct dwarf_section
*section
,
6207 void *file ATTRIBUTE_UNUSED
)
6209 abbrev_entry
*entry
;
6210 unsigned char *start
= section
->start
;
6212 introduce (section
, false);
6219 offset
= start
- section
->start
;
6220 list
= find_abbrev_list_by_abbrev_offset (0, offset
);
6223 list
= new_abbrev_list (0, offset
);
6224 start
= process_abbrev_set (section
, 0, section
->size
, offset
, list
);
6225 list
->start_of_next_abbrevs
= start
;
6228 start
= list
->start_of_next_abbrevs
;
6230 if (list
->first_abbrev
== NULL
)
6233 printf (_(" Number TAG (0x%lx)\n"), (long) offset
);
6235 for (entry
= list
->first_abbrev
; entry
; entry
= entry
->next
)
6239 printf (" %ld %s [%s]\n",
6241 get_TAG_name (entry
->tag
),
6242 entry
->children
? _("has children") : _("no children"));
6244 for (attr
= entry
->first_attr
; attr
; attr
= attr
->next
)
6246 printf (" %-18s %s",
6247 get_AT_name (attr
->attribute
),
6248 get_FORM_name (attr
->form
));
6249 if (attr
->form
== DW_FORM_implicit_const
)
6250 printf (": %s", dwarf_vmatoa ("d", attr
->implicit_const
));
6262 /* Return true when ADDR is the maximum address, when addresses are
6263 POINTER_SIZE bytes long. */
6266 is_max_address (dwarf_vma addr
, unsigned int pointer_size
)
6268 dwarf_vma mask
= ~(~(dwarf_vma
) 1 << (pointer_size
* 8 - 1));
6269 return ((addr
& mask
) == mask
);
6272 /* Display a view pair list starting at *VSTART_PTR and ending at
6273 VLISTEND within SECTION. */
6276 display_view_pair_list (struct dwarf_section
*section
,
6277 unsigned char **vstart_ptr
,
6278 unsigned int debug_info_entry
,
6279 unsigned char *vlistend
)
6281 unsigned char *vstart
= *vstart_ptr
;
6282 unsigned char *section_end
= section
->start
+ section
->size
;
6283 unsigned int pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6285 if (vlistend
< section_end
)
6286 section_end
= vlistend
;
6290 while (vstart
< section_end
)
6292 dwarf_vma off
= vstart
- section
->start
;
6293 dwarf_vma vbegin
, vend
;
6295 READ_ULEB (vbegin
, vstart
, section_end
);
6296 if (vstart
== section_end
)
6299 READ_ULEB (vend
, vstart
, section_end
);
6300 printf (" %8.8lx ", (unsigned long) off
);
6302 print_dwarf_view (vbegin
, pointer_size
, 1);
6303 print_dwarf_view (vend
, pointer_size
, 1);
6304 printf (_("location view pair\n"));
6308 *vstart_ptr
= vstart
;
6311 /* Display a location list from a normal (ie, non-dwo) .debug_loc section. */
6314 display_loc_list (struct dwarf_section
*section
,
6315 unsigned char **start_ptr
,
6316 unsigned int debug_info_entry
,
6318 dwarf_vma base_address
,
6319 unsigned char **vstart_ptr
,
6322 unsigned char *start
= *start_ptr
, *vstart
= *vstart_ptr
;
6323 unsigned char *section_end
= section
->start
+ section
->size
;
6324 unsigned long cu_offset
;
6325 unsigned int pointer_size
;
6326 unsigned int offset_size
;
6331 unsigned short length
;
6332 int need_frame_base
;
6334 if (debug_info_entry
>= num_debug_info_entries
)
6336 warn (_("No debug information available for loc lists of entry: %u\n"),
6341 cu_offset
= debug_information
[debug_info_entry
].cu_offset
;
6342 pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6343 offset_size
= debug_information
[debug_info_entry
].offset_size
;
6344 dwarf_version
= debug_information
[debug_info_entry
].dwarf_version
;
6346 if (pointer_size
< 2 || pointer_size
> 8)
6348 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
6349 pointer_size
, debug_info_entry
);
6355 dwarf_vma off
= offset
+ (start
- *start_ptr
);
6356 dwarf_vma vbegin
= vm1
, vend
= vm1
;
6358 if (2 * pointer_size
> (size_t) (section_end
- start
))
6360 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6361 (unsigned long) offset
);
6365 printf (" %8.8lx ", (unsigned long) off
);
6367 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, section_end
);
6368 SAFE_BYTE_GET_AND_INC (end
, start
, pointer_size
, section_end
);
6370 if (begin
== 0 && end
== 0)
6372 /* PR 18374: In a object file we can have a location list that
6373 starts with a begin and end of 0 because there are relocations
6374 that need to be applied to the addresses. Actually applying
6375 the relocations now does not help as they will probably resolve
6376 to 0, since the object file has not been fully linked. Real
6377 end of list markers will not have any relocations against them. */
6378 if (! reloc_at (section
, off
)
6379 && ! reloc_at (section
, off
+ pointer_size
))
6381 printf (_("<End of list>\n"));
6386 /* Check base address specifiers. */
6387 if (is_max_address (begin
, pointer_size
)
6388 && !is_max_address (end
, pointer_size
))
6391 print_dwarf_vma (begin
, pointer_size
);
6392 print_dwarf_vma (end
, pointer_size
);
6393 printf (_("(base address)\n"));
6399 off
= offset
+ (vstart
- *start_ptr
);
6401 READ_ULEB (vbegin
, vstart
, section_end
);
6402 print_dwarf_view (vbegin
, pointer_size
, 1);
6404 READ_ULEB (vend
, vstart
, section_end
);
6405 print_dwarf_view (vend
, pointer_size
, 1);
6407 printf (_("views at %8.8lx for:\n %*s "),
6408 (unsigned long) off
, 8, "");
6411 if (2 > (size_t) (section_end
- start
))
6413 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6414 (unsigned long) offset
);
6418 SAFE_BYTE_GET_AND_INC (length
, start
, 2, section_end
);
6420 if (length
> (size_t) (section_end
- start
))
6422 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6423 (unsigned long) offset
);
6427 print_dwarf_vma (begin
+ base_address
, pointer_size
);
6428 print_dwarf_vma (end
+ base_address
, pointer_size
);
6431 need_frame_base
= decode_location_expression (start
,
6436 cu_offset
, section
);
6439 if (need_frame_base
&& !has_frame_base
)
6440 printf (_(" [without DW_AT_frame_base]"));
6442 if (begin
== end
&& vbegin
== vend
)
6443 fputs (_(" (start == end)"), stdout
);
6444 else if (begin
> end
|| (begin
== end
&& vbegin
> vend
))
6445 fputs (_(" (start > end)"), stdout
);
6453 *vstart_ptr
= vstart
;
6456 /* Display a location list from a normal (ie, non-dwo) .debug_loclists section. */
6459 display_loclists_list (struct dwarf_section
*section
,
6460 unsigned char **start_ptr
,
6461 unsigned int debug_info_entry
,
6463 dwarf_vma base_address
,
6464 unsigned char **vstart_ptr
,
6467 unsigned char *start
= *start_ptr
, *vstart
= *vstart_ptr
;
6468 unsigned char *section_end
= section
->start
+ section
->size
;
6469 unsigned long cu_offset
;
6470 unsigned int pointer_size
;
6471 unsigned int offset_size
;
6474 /* Initialize it due to a false compiler warning. */
6475 dwarf_vma begin
= -1, vbegin
= -1;
6476 dwarf_vma end
= -1, vend
= -1;
6478 int need_frame_base
;
6480 if (debug_info_entry
>= num_debug_info_entries
)
6482 warn (_("No debug information available for "
6483 "loclists lists of entry: %u\n"),
6488 cu_offset
= debug_information
[debug_info_entry
].cu_offset
;
6489 pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6490 offset_size
= debug_information
[debug_info_entry
].offset_size
;
6491 dwarf_version
= debug_information
[debug_info_entry
].dwarf_version
;
6493 if (pointer_size
< 2 || pointer_size
> 8)
6495 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
6496 pointer_size
, debug_info_entry
);
6502 dwarf_vma off
= offset
+ (start
- *start_ptr
);
6503 enum dwarf_location_list_entry_type llet
;
6505 if (start
+ 1 > section_end
)
6507 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6508 (unsigned long) offset
);
6512 printf (" %8.8lx ", (unsigned long) off
);
6514 SAFE_BYTE_GET_AND_INC (llet
, start
, 1, section_end
);
6516 if (vstart
&& (llet
== DW_LLE_offset_pair
6517 || llet
== DW_LLE_start_end
6518 || llet
== DW_LLE_start_length
))
6520 off
= offset
+ (vstart
- *start_ptr
);
6522 READ_ULEB (vbegin
, vstart
, section_end
);
6523 print_dwarf_view (vbegin
, pointer_size
, 1);
6525 READ_ULEB (vend
, vstart
, section_end
);
6526 print_dwarf_view (vend
, pointer_size
, 1);
6528 printf (_("views at %8.8lx for:\n %*s "),
6529 (unsigned long) off
, 8, "");
6534 case DW_LLE_end_of_list
:
6535 printf (_("<End of list>\n"));
6537 case DW_LLE_offset_pair
:
6538 READ_ULEB (begin
, start
, section_end
);
6539 begin
+= base_address
;
6540 READ_ULEB (end
, start
, section_end
);
6541 end
+= base_address
;
6543 case DW_LLE_start_end
:
6544 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, section_end
);
6545 SAFE_BYTE_GET_AND_INC (end
, start
, pointer_size
, section_end
);
6547 case DW_LLE_start_length
:
6548 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, section_end
);
6549 READ_ULEB (end
, start
, section_end
);
6552 case DW_LLE_base_address
:
6553 SAFE_BYTE_GET_AND_INC (base_address
, start
, pointer_size
,
6555 print_dwarf_vma (base_address
, pointer_size
);
6556 printf (_("(base address)\n"));
6558 #ifdef DW_LLE_view_pair
6559 case DW_LLE_view_pair
:
6561 printf (_("View pair entry in loclist with locviews attribute\n"));
6562 READ_ULEB (vbegin
, start
, section_end
);
6563 print_dwarf_view (vbegin
, pointer_size
, 1);
6565 READ_ULEB (vend
, start
, section_end
);
6566 print_dwarf_view (vend
, pointer_size
, 1);
6568 printf (_("views for:\n"));
6572 error (_("Invalid location list entry type %d\n"), llet
);
6575 if (llet
== DW_LLE_end_of_list
)
6577 if (llet
!= DW_LLE_offset_pair
6578 && llet
!= DW_LLE_start_end
6579 && llet
!= DW_LLE_start_length
)
6582 if (start
== section_end
)
6584 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6585 (unsigned long) offset
);
6588 READ_ULEB (length
, start
, section_end
);
6590 if (length
> (size_t) (section_end
- start
))
6592 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6593 (unsigned long) offset
);
6597 print_dwarf_vma (begin
, pointer_size
);
6598 print_dwarf_vma (end
, pointer_size
);
6601 need_frame_base
= decode_location_expression (start
,
6606 cu_offset
, section
);
6609 if (need_frame_base
&& !has_frame_base
)
6610 printf (_(" [without DW_AT_frame_base]"));
6612 if (begin
== end
&& vbegin
== vend
)
6613 fputs (_(" (start == end)"), stdout
);
6614 else if (begin
> end
|| (begin
== end
&& vbegin
> vend
))
6615 fputs (_(" (start > end)"), stdout
);
6623 if (vbegin
!= vm1
|| vend
!= vm1
)
6624 printf (_("Trailing view pair not used in a range"));
6627 *vstart_ptr
= vstart
;
6630 /* Print a .debug_addr table index in decimal, surrounded by square brackets,
6631 right-adjusted in a field of length LEN, and followed by a space. */
6634 print_addr_index (unsigned int idx
, unsigned int len
)
6636 static char buf
[15];
6637 snprintf (buf
, sizeof (buf
), "[%d]", idx
);
6638 printf ("%*s ", len
, buf
);
6641 /* Display a location list from a .dwo section. It uses address indexes rather
6642 than embedded addresses. This code closely follows display_loc_list, but the
6643 two are sufficiently different that combining things is very ugly. */
6646 display_loc_list_dwo (struct dwarf_section
*section
,
6647 unsigned char **start_ptr
,
6648 unsigned int debug_info_entry
,
6650 unsigned char **vstart_ptr
,
6653 unsigned char *start
= *start_ptr
, *vstart
= *vstart_ptr
;
6654 unsigned char *section_end
= section
->start
+ section
->size
;
6655 unsigned long cu_offset
;
6656 unsigned int pointer_size
;
6657 unsigned int offset_size
;
6660 unsigned short length
;
6661 int need_frame_base
;
6664 if (debug_info_entry
>= num_debug_info_entries
)
6666 warn (_("No debug information for loc lists of entry: %u\n"),
6671 cu_offset
= debug_information
[debug_info_entry
].cu_offset
;
6672 pointer_size
= debug_information
[debug_info_entry
].pointer_size
;
6673 offset_size
= debug_information
[debug_info_entry
].offset_size
;
6674 dwarf_version
= debug_information
[debug_info_entry
].dwarf_version
;
6676 if (pointer_size
< 2 || pointer_size
> 8)
6678 warn (_("Invalid pointer size (%d) in debug info for entry %d\n"),
6679 pointer_size
, debug_info_entry
);
6685 printf (" %8.8lx ", (unsigned long) (offset
+ (start
- *start_ptr
)));
6687 if (start
>= section_end
)
6689 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6690 (unsigned long) offset
);
6694 SAFE_BYTE_GET_AND_INC (entry_type
, start
, 1, section_end
);
6707 dwarf_vma off
= offset
+ (vstart
- *start_ptr
);
6709 READ_ULEB (view
, vstart
, section_end
);
6710 print_dwarf_view (view
, 8, 1);
6712 READ_ULEB (view
, vstart
, section_end
);
6713 print_dwarf_view (view
, 8, 1);
6715 printf (_("views at %8.8lx for:\n %*s "),
6716 (unsigned long) off
, 8, "");
6724 case 0: /* A terminating entry. */
6726 *vstart_ptr
= vstart
;
6727 printf (_("<End of list>\n"));
6729 case 1: /* A base-address entry. */
6730 READ_ULEB (idx
, start
, section_end
);
6731 print_addr_index (idx
, 8);
6732 printf ("%*s", 9 + (vstart
? 2 * 6 : 0), "");
6733 printf (_("(base address selection entry)\n"));
6735 case 2: /* A start/end entry. */
6736 READ_ULEB (idx
, start
, section_end
);
6737 print_addr_index (idx
, 8);
6738 READ_ULEB (idx
, start
, section_end
);
6739 print_addr_index (idx
, 8);
6741 case 3: /* A start/length entry. */
6742 READ_ULEB (idx
, start
, section_end
);
6743 print_addr_index (idx
, 8);
6744 SAFE_BYTE_GET_AND_INC (idx
, start
, 4, section_end
);
6745 printf ("%08x ", idx
);
6747 case 4: /* An offset pair entry. */
6748 SAFE_BYTE_GET_AND_INC (idx
, start
, 4, section_end
);
6749 printf ("%08x ", idx
);
6750 SAFE_BYTE_GET_AND_INC (idx
, start
, 4, section_end
);
6751 printf ("%08x ", idx
);
6754 warn (_("Unknown location list entry type 0x%x.\n"), entry_type
);
6756 *vstart_ptr
= vstart
;
6760 if (2 > (size_t) (section_end
- start
))
6762 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6763 (unsigned long) offset
);
6767 SAFE_BYTE_GET_AND_INC (length
, start
, 2, section_end
);
6768 if (length
> (size_t) (section_end
- start
))
6770 warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
6771 (unsigned long) offset
);
6776 need_frame_base
= decode_location_expression (start
,
6781 cu_offset
, section
);
6784 if (need_frame_base
&& !has_frame_base
)
6785 printf (_(" [without DW_AT_frame_base]"));
6793 *vstart_ptr
= vstart
;
6796 /* Sort array of indexes in ascending order of loc_offsets[idx] and
6799 static dwarf_vma
*loc_offsets
, *loc_views
;
6802 loc_offsets_compar (const void *ap
, const void *bp
)
6804 dwarf_vma a
= loc_offsets
[*(const unsigned int *) ap
];
6805 dwarf_vma b
= loc_offsets
[*(const unsigned int *) bp
];
6807 int ret
= (a
> b
) - (b
> a
);
6811 a
= loc_views
[*(const unsigned int *) ap
];
6812 b
= loc_views
[*(const unsigned int *) bp
];
6814 ret
= (a
> b
) - (b
> a
);
6820 display_debug_loc (struct dwarf_section
*section
, void *file
)
6822 unsigned char *start
= section
->start
, *vstart
= NULL
;
6823 unsigned long bytes
;
6824 unsigned char *section_begin
= start
;
6825 unsigned int num_loc_list
= 0;
6826 unsigned long last_offset
= 0;
6827 unsigned long last_view
= 0;
6828 unsigned int first
= 0;
6831 int seen_first_offset
= 0;
6832 int locs_sorted
= 1;
6833 unsigned char *next
= start
, *vnext
= vstart
;
6834 unsigned int *array
= NULL
;
6835 const char *suffix
= strrchr (section
->name
, '.');
6836 bool is_dwo
= false;
6837 int is_loclists
= strstr (section
->name
, "debug_loclists") != NULL
;
6838 dwarf_vma expected_start
= 0;
6840 if (suffix
&& strcmp (suffix
, ".dwo") == 0)
6843 bytes
= section
->size
;
6847 printf (_("\nThe %s section is empty.\n"), section
->name
);
6853 unsigned char *hdrptr
= section_begin
;
6854 dwarf_vma ll_length
;
6855 unsigned short ll_version
;
6856 unsigned char *end
= section_begin
+ section
->size
;
6857 unsigned char address_size
, segment_selector_size
;
6858 uint32_t offset_entry_count
;
6860 SAFE_BYTE_GET_AND_INC (ll_length
, hdrptr
, 4, end
);
6861 if (ll_length
== 0xffffffff)
6862 SAFE_BYTE_GET_AND_INC (ll_length
, hdrptr
, 8, end
);
6864 SAFE_BYTE_GET_AND_INC (ll_version
, hdrptr
, 2, end
);
6865 if (ll_version
!= 5)
6867 warn (_("The %s section contains corrupt or "
6868 "unsupported version number: %d.\n"),
6869 section
->name
, ll_version
);
6873 SAFE_BYTE_GET_AND_INC (address_size
, hdrptr
, 1, end
);
6875 SAFE_BYTE_GET_AND_INC (segment_selector_size
, hdrptr
, 1, end
);
6876 if (segment_selector_size
!= 0)
6878 warn (_("The %s section contains "
6879 "unsupported segment selector size: %d.\n"),
6880 section
->name
, segment_selector_size
);
6884 SAFE_BYTE_GET_AND_INC (offset_entry_count
, hdrptr
, 4, end
);
6885 if (offset_entry_count
!= 0)
6887 warn (_("The %s section contains "
6888 "unsupported offset entry count: %d.\n"),
6889 section
->name
, offset_entry_count
);
6893 expected_start
= hdrptr
- section_begin
;
6896 if (load_debug_info (file
) == 0)
6898 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
6903 /* Check the order of location list in .debug_info section. If
6904 offsets of location lists are in the ascending order, we can
6905 use `debug_information' directly. */
6906 for (i
= 0; i
< num_debug_info_entries
; i
++)
6910 num
= debug_information
[i
].num_loc_offsets
;
6911 if (num
> num_loc_list
)
6914 /* Check if we can use `debug_information' directly. */
6915 if (locs_sorted
&& num
!= 0)
6917 if (!seen_first_offset
)
6919 /* This is the first location list. */
6920 last_offset
= debug_information
[i
].loc_offsets
[0];
6921 last_view
= debug_information
[i
].loc_views
[0];
6923 seen_first_offset
= 1;
6929 for (; j
< num
; j
++)
6932 debug_information
[i
].loc_offsets
[j
]
6933 || (last_offset
== debug_information
[i
].loc_offsets
[j
]
6934 && last_view
> debug_information
[i
].loc_views
[j
]))
6939 last_offset
= debug_information
[i
].loc_offsets
[j
];
6940 last_view
= debug_information
[i
].loc_views
[j
];
6945 if (!seen_first_offset
)
6946 error (_("No location lists in .debug_info section!\n"));
6948 if (debug_information
[first
].num_loc_offsets
> 0
6949 && debug_information
[first
].loc_offsets
[0] != expected_start
6950 && debug_information
[first
].loc_views
[0] != expected_start
)
6951 warn (_("Location lists in %s section start at 0x%s\n"),
6953 dwarf_vmatoa ("x", debug_information
[first
].loc_offsets
[0]));
6956 array
= (unsigned int *) xcmalloc (num_loc_list
, sizeof (unsigned int));
6958 introduce (section
, false);
6960 if (reloc_at (section
, 0))
6961 printf (_(" Warning: This section has relocations - addresses seen here may not be accurate.\n\n"));
6963 printf (_(" Offset Begin End Expression\n"));
6965 seen_first_offset
= 0;
6966 for (i
= first
; i
< num_debug_info_entries
; i
++)
6968 dwarf_vma offset
, voffset
;
6969 dwarf_vma base_address
;
6975 for (k
= 0; k
< debug_information
[i
].num_loc_offsets
; k
++)
6977 loc_offsets
= debug_information
[i
].loc_offsets
;
6978 loc_views
= debug_information
[i
].loc_views
;
6979 qsort (array
, debug_information
[i
].num_loc_offsets
,
6980 sizeof (*array
), loc_offsets_compar
);
6983 int adjacent_view_loclists
= 1;
6984 for (k
= 0; k
< debug_information
[i
].num_loc_offsets
; k
++)
6986 j
= locs_sorted
? k
: array
[k
];
6988 && (debug_information
[i
].loc_offsets
[locs_sorted
6989 ? k
- 1 : array
[k
- 1]]
6990 == debug_information
[i
].loc_offsets
[j
])
6991 && (debug_information
[i
].loc_views
[locs_sorted
6992 ? k
- 1 : array
[k
- 1]]
6993 == debug_information
[i
].loc_views
[j
]))
6995 has_frame_base
= debug_information
[i
].have_frame_base
[j
];
6996 offset
= debug_information
[i
].loc_offsets
[j
];
6997 next
= section_begin
+ offset
;
6998 voffset
= debug_information
[i
].loc_views
[j
];
7000 vnext
= section_begin
+ voffset
;
7003 base_address
= debug_information
[i
].base_address
;
7005 if (vnext
&& vnext
< next
)
7008 display_view_pair_list (section
, &vstart
, i
, next
);
7013 if (!seen_first_offset
|| !adjacent_view_loclists
)
7014 seen_first_offset
= 1;
7018 warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
7019 (unsigned long) (start
- section_begin
),
7020 (unsigned long) offset
);
7021 else if (start
> next
)
7022 warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
7023 (unsigned long) (start
- section_begin
),
7024 (unsigned long) offset
);
7029 if (offset
>= bytes
)
7031 warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"),
7032 (unsigned long) offset
);
7036 if (vnext
&& voffset
>= bytes
)
7038 warn (_("View Offset 0x%lx is bigger than .debug_loc section size.\n"),
7039 (unsigned long) voffset
);
7046 display_loc_list_dwo (section
, &start
, i
, offset
,
7047 &vstart
, has_frame_base
);
7049 display_loc_list (section
, &start
, i
, offset
, base_address
,
7050 &vstart
, has_frame_base
);
7055 warn (_("DWO is not yet supported.\n"));
7057 display_loclists_list (section
, &start
, i
, offset
, base_address
,
7058 &vstart
, has_frame_base
);
7061 /* FIXME: this arrangement is quite simplistic. Nothing
7062 requires locview lists to be adjacent to corresponding
7063 loclists, and a single loclist could be augmented by
7064 different locview lists, and vice-versa, unlikely as it
7065 is that it would make sense to do so. Hopefully we'll
7066 have view pair support built into loclists before we ever
7067 need to address all these possibilities. */
7068 if (adjacent_view_loclists
&& vnext
7069 && vnext
!= start
&& vstart
!= next
)
7071 adjacent_view_loclists
= 0;
7072 warn (_("Hole and overlap detection requires adjacent view lists and loclists.\n"));
7075 if (vnext
&& vnext
== start
)
7076 display_view_pair_list (section
, &start
, i
, vstart
);
7080 if (start
< section
->start
+ section
->size
)
7081 warn (ngettext ("There is %ld unused byte at the end of section %s\n",
7082 "There are %ld unused bytes at the end of section %s\n",
7083 (long) (section
->start
+ section
->size
- start
)),
7084 (long) (section
->start
+ section
->size
- start
), section
->name
);
7091 display_debug_str (struct dwarf_section
*section
,
7092 void *file ATTRIBUTE_UNUSED
)
7094 unsigned char *start
= section
->start
;
7095 unsigned long bytes
= section
->size
;
7096 dwarf_vma addr
= section
->address
;
7100 printf (_("\nThe %s section is empty.\n"), section
->name
);
7104 introduce (section
, false);
7112 lbytes
= (bytes
> 16 ? 16 : bytes
);
7114 printf (" 0x%8.8lx ", (unsigned long) addr
);
7116 for (j
= 0; j
< 16; j
++)
7119 printf ("%2.2x", start
[j
]);
7127 for (j
= 0; j
< lbytes
; j
++)
7130 if (k
>= ' ' && k
< 0x80)
7149 display_debug_info (struct dwarf_section
*section
, void *file
)
7151 return process_debug_info (section
, file
, section
->abbrev_sec
, false, false);
7155 display_debug_types (struct dwarf_section
*section
, void *file
)
7157 return process_debug_info (section
, file
, section
->abbrev_sec
, false, true);
7161 display_trace_info (struct dwarf_section
*section
, void *file
)
7163 return process_debug_info (section
, file
, section
->abbrev_sec
, false, true);
7167 display_debug_aranges (struct dwarf_section
*section
,
7168 void *file ATTRIBUTE_UNUSED
)
7170 unsigned char *start
= section
->start
;
7171 unsigned char *end
= start
+ section
->size
;
7173 introduce (section
, false);
7175 /* It does not matter if this load fails,
7176 we test for that later on. */
7177 load_debug_info (file
);
7181 unsigned char *hdrptr
;
7182 DWARF2_Internal_ARange arange
;
7183 unsigned char *addr_ranges
;
7186 unsigned long sec_off
;
7187 unsigned char address_size
;
7189 unsigned int offset_size
;
7190 unsigned char *end_ranges
;
7193 sec_off
= hdrptr
- section
->start
;
7195 SAFE_BYTE_GET_AND_INC (arange
.ar_length
, hdrptr
, 4, end
);
7196 if (arange
.ar_length
== 0xffffffff)
7198 SAFE_BYTE_GET_AND_INC (arange
.ar_length
, hdrptr
, 8, end
);
7204 if (arange
.ar_length
> (size_t) (end
- hdrptr
))
7206 warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
7209 dwarf_vmatoa ("x", arange
.ar_length
));
7212 end_ranges
= hdrptr
+ arange
.ar_length
;
7214 SAFE_BYTE_GET_AND_INC (arange
.ar_version
, hdrptr
, 2, end_ranges
);
7215 SAFE_BYTE_GET_AND_INC (arange
.ar_info_offset
, hdrptr
, offset_size
,
7218 if (num_debug_info_entries
!= DEBUG_INFO_UNAVAILABLE
7219 && num_debug_info_entries
> 0
7220 && find_debug_info_for_offset (arange
.ar_info_offset
) == NULL
)
7221 warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"),
7222 (unsigned long) arange
.ar_info_offset
, section
->name
);
7224 SAFE_BYTE_GET_AND_INC (arange
.ar_pointer_size
, hdrptr
, 1, end_ranges
);
7225 SAFE_BYTE_GET_AND_INC (arange
.ar_segment_size
, hdrptr
, 1, end_ranges
);
7227 if (arange
.ar_version
!= 2 && arange
.ar_version
!= 3)
7229 /* PR 19872: A version number of 0 probably means that there is
7230 padding at the end of the .debug_aranges section. Gold puts
7231 it there when performing an incremental link, for example.
7232 So do not generate a warning in this case. */
7233 if (arange
.ar_version
)
7234 warn (_("Only DWARF 2 and 3 aranges are currently supported.\n"));
7238 printf (_(" Length: %ld\n"),
7239 (long) arange
.ar_length
);
7240 printf (_(" Version: %d\n"), arange
.ar_version
);
7241 printf (_(" Offset into .debug_info: 0x%lx\n"),
7242 (unsigned long) arange
.ar_info_offset
);
7243 printf (_(" Pointer Size: %d\n"), arange
.ar_pointer_size
);
7244 printf (_(" Segment Size: %d\n"), arange
.ar_segment_size
);
7246 address_size
= arange
.ar_pointer_size
+ arange
.ar_segment_size
;
7248 /* PR 17512: file: 001-108546-0.001:0.1. */
7249 if (address_size
== 0 || address_size
> 8)
7251 error (_("Invalid address size in %s section!\n"),
7256 /* The DWARF spec does not require that the address size be a power
7257 of two, but we do. This will have to change if we ever encounter
7258 an uneven architecture. */
7259 if ((address_size
& (address_size
- 1)) != 0)
7261 warn (_("Pointer size + Segment size is not a power of two.\n"));
7265 if (address_size
> 4)
7266 printf (_("\n Address Length\n"));
7268 printf (_("\n Address Length\n"));
7270 addr_ranges
= hdrptr
;
7272 /* Must pad to an alignment boundary that is twice the address size. */
7273 excess
= (hdrptr
- start
) % (2 * address_size
);
7275 addr_ranges
+= (2 * address_size
) - excess
;
7279 while (2u * address_size
<= (size_t) (start
- addr_ranges
))
7281 SAFE_BYTE_GET_AND_INC (address
, addr_ranges
, address_size
, start
);
7282 SAFE_BYTE_GET_AND_INC (length
, addr_ranges
, address_size
, start
);
7285 print_dwarf_vma (address
, address_size
);
7286 print_dwarf_vma (length
, address_size
);
7296 /* Comparison function for qsort. */
7298 comp_addr_base (const void * v0
, const void * v1
)
7300 debug_info
*info0
= *(debug_info
**) v0
;
7301 debug_info
*info1
= *(debug_info
**) v1
;
7302 return info0
->addr_base
- info1
->addr_base
;
7305 /* Display the debug_addr section. */
7307 display_debug_addr (struct dwarf_section
*section
,
7310 debug_info
**debug_addr_info
;
7311 unsigned char *entry
;
7315 unsigned char * header
;
7317 if (section
->size
== 0)
7319 printf (_("\nThe %s section is empty.\n"), section
->name
);
7323 if (load_debug_info (file
) == 0)
7325 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
7330 introduce (section
, false);
7332 /* PR 17531: file: cf38d01b.
7333 We use xcalloc because a corrupt file may not have initialised all of the
7334 fields in the debug_info structure, which means that the sort below might
7335 try to move uninitialised data. */
7336 debug_addr_info
= (debug_info
**) xcalloc ((num_debug_info_entries
+ 1),
7337 sizeof (debug_info
*));
7340 for (i
= 0; i
< num_debug_info_entries
; i
++)
7341 if (debug_information
[i
].addr_base
!= DEBUG_INFO_UNAVAILABLE
)
7343 /* PR 17531: file: cf38d01b. */
7344 if (debug_information
[i
].addr_base
>= section
->size
)
7345 warn (_("Corrupt address base (%lx) found in debug section %u\n"),
7346 (unsigned long) debug_information
[i
].addr_base
, i
);
7348 debug_addr_info
[count
++] = debug_information
+ i
;
7351 /* Add a sentinel to make iteration convenient. */
7352 debug_addr_info
[count
] = (debug_info
*) xmalloc (sizeof (debug_info
));
7353 debug_addr_info
[count
]->addr_base
= section
->size
;
7354 qsort (debug_addr_info
, count
, sizeof (debug_info
*), comp_addr_base
);
7356 header
= section
->start
;
7357 for (i
= 0; i
< count
; i
++)
7360 unsigned int address_size
= debug_addr_info
[i
]->pointer_size
;
7362 printf (_(" For compilation unit at offset 0x%s:\n"),
7363 dwarf_vmatoa ("x", debug_addr_info
[i
]->cu_offset
));
7365 printf (_("\tIndex\tAddress\n"));
7366 entry
= section
->start
+ debug_addr_info
[i
]->addr_base
;
7367 if (debug_addr_info
[i
]->dwarf_version
>= 5)
7369 size_t header_size
= entry
- header
;
7370 unsigned char * curr_header
= header
;
7373 int segment_selector_size
;
7375 if (header_size
!= 8 && header_size
!= 16)
7377 warn (_("Corrupt %s section: expecting header size of 8 or 16, but found %ld instead\n"),
7378 section
->name
, (long) header_size
);
7382 SAFE_BYTE_GET_AND_INC (length
, curr_header
, 4, entry
);
7383 if (length
== 0xffffffff)
7384 SAFE_BYTE_GET_AND_INC (length
, curr_header
, 8, entry
);
7385 end
= curr_header
+ length
;
7387 SAFE_BYTE_GET_AND_INC (version
, curr_header
, 2, entry
);
7389 warn (_("Corrupt %s section: expecting version number 5 in header but found %d instead\n"),
7390 section
->name
, version
);
7392 SAFE_BYTE_GET_AND_INC (address_size
, curr_header
, 1, entry
);
7393 SAFE_BYTE_GET_AND_INC (segment_selector_size
, curr_header
, 1, entry
);
7394 address_size
+= segment_selector_size
;
7397 end
= section
->start
+ debug_addr_info
[i
+ 1]->addr_base
;
7402 dwarf_vma base
= byte_get (entry
, address_size
);
7403 printf (_("\t%d:\t"), idx
);
7404 print_dwarf_vma (base
, address_size
);
7406 entry
+= address_size
;
7412 free (debug_addr_info
);
7416 /* Display the .debug_str_offsets and .debug_str_offsets.dwo sections. */
7419 display_debug_str_offsets (struct dwarf_section
*section
,
7420 void *file ATTRIBUTE_UNUSED
)
7424 if (section
->size
== 0)
7426 printf (_("\nThe %s section is empty.\n"), section
->name
);
7430 unsigned char *start
= section
->start
;
7431 unsigned char *end
= start
+ section
->size
;
7432 unsigned char *curr
= start
;
7434 const char *suffix
= strrchr (section
->name
, '.');
7435 bool dwo
= suffix
&& strcmp (suffix
, ".dwo") == 0;
7438 load_debug_section_with_follow (str_dwo
, file
);
7440 load_debug_section_with_follow (str
, file
);
7442 introduce (section
, false);
7447 dwarf_vma entry_length
;
7449 SAFE_BYTE_GET_AND_INC (length
, curr
, 4, end
);
7450 /* FIXME: We assume that this means 64-bit DWARF is being used. */
7451 if (length
== 0xffffffff)
7453 SAFE_BYTE_GET_AND_INC (length
, curr
, 8, end
);
7459 unsigned char *entries_end
;
7462 /* This is probably an old style .debug_str_offset section which
7463 just contains offsets and no header (and the first offset is 0). */
7464 length
= section
->size
;
7465 curr
= section
->start
;
7468 printf (_(" Length: %#lx\n"), (unsigned long) length
);
7469 printf (_(" Index Offset [String]\n"));
7473 if (length
<= (dwarf_vma
) (end
- curr
))
7474 entries_end
= curr
+ length
;
7477 warn (_("Section %s is too small %#lx\n"),
7478 section
->name
, (unsigned long) section
->size
);
7483 SAFE_BYTE_GET_AND_INC (version
, curr
, 2, entries_end
);
7485 warn (_("Unexpected version number in str_offset header: %#x\n"), version
);
7488 SAFE_BYTE_GET_AND_INC (padding
, curr
, 2, entries_end
);
7490 warn (_("Unexpected value in str_offset header's padding field: %#x\n"), padding
);
7492 printf (_(" Length: %#lx\n"), (unsigned long) length
);
7493 printf (_(" Version: %#lx\n"), (unsigned long) version
);
7494 printf (_(" Index Offset [String]\n"));
7497 for (idx
= 0; curr
< entries_end
; idx
++)
7500 const unsigned char * string
;
7502 if ((dwarf_vma
) (entries_end
- curr
) < entry_length
)
7503 /* Not enough space to read one entry_length, give up. */
7506 SAFE_BYTE_GET_AND_INC (offset
, curr
, entry_length
, entries_end
);
7508 string
= (const unsigned char *)
7509 fetch_indexed_string (idx
, NULL
, entry_length
, dwo
);
7511 string
= fetch_indirect_string (offset
);
7513 printf (" %8lu %8s %s\n", idx
, dwarf_vmatoa ("x", offset
),
7521 /* Each debug_information[x].range_lists[y] gets this representation for
7522 sorting purposes. */
7526 /* The debug_information[x].range_lists[y] value. */
7527 dwarf_vma ranges_offset
;
7529 /* Original debug_information to find parameters of the data. */
7530 debug_info
*debug_info_p
;
7533 /* Sort struct range_entry in ascending order of its RANGES_OFFSET. */
7536 range_entry_compar (const void *ap
, const void *bp
)
7538 const struct range_entry
*a_re
= (const struct range_entry
*) ap
;
7539 const struct range_entry
*b_re
= (const struct range_entry
*) bp
;
7540 const dwarf_vma a
= a_re
->ranges_offset
;
7541 const dwarf_vma b
= b_re
->ranges_offset
;
7543 return (a
> b
) - (b
> a
);
7547 display_debug_ranges_list (unsigned char *start
, unsigned char *finish
,
7548 unsigned int pointer_size
, unsigned long offset
,
7549 unsigned long base_address
)
7551 while (start
< finish
)
7556 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, finish
);
7557 if (start
>= finish
)
7559 SAFE_SIGNED_BYTE_GET_AND_INC (end
, start
, pointer_size
, finish
);
7561 printf (" %8.8lx ", offset
);
7563 if (begin
== 0 && end
== 0)
7565 printf (_("<End of list>\n"));
7569 /* Check base address specifiers. */
7570 if (is_max_address (begin
, pointer_size
)
7571 && !is_max_address (end
, pointer_size
))
7574 print_dwarf_vma (begin
, pointer_size
);
7575 print_dwarf_vma (end
, pointer_size
);
7576 printf ("(base address)\n");
7580 print_dwarf_vma (begin
+ base_address
, pointer_size
);
7581 print_dwarf_vma (end
+ base_address
, pointer_size
);
7584 fputs (_("(start == end)"), stdout
);
7585 else if (begin
> end
)
7586 fputs (_("(start > end)"), stdout
);
7593 display_debug_rnglists_list (unsigned char *start
, unsigned char *finish
,
7594 unsigned int pointer_size
, unsigned long offset
,
7595 unsigned long base_address
)
7597 unsigned char *next
= start
;
7601 unsigned long off
= offset
+ (start
- next
);
7602 enum dwarf_range_list_entry rlet
;
7603 /* Initialize it due to a false compiler warning. */
7604 dwarf_vma begin
= -1, length
, end
= -1;
7606 if (start
>= finish
)
7608 warn (_("Range list starting at offset 0x%lx is not terminated.\n"),
7613 printf (" %8.8lx ", off
);
7615 SAFE_BYTE_GET_AND_INC (rlet
, start
, 1, finish
);
7619 case DW_RLE_end_of_list
:
7620 printf (_("<End of list>\n"));
7622 case DW_RLE_base_address
:
7623 SAFE_BYTE_GET_AND_INC (base_address
, start
, pointer_size
, finish
);
7624 print_dwarf_vma (base_address
, pointer_size
);
7625 printf (_("(base address)\n"));
7627 case DW_RLE_start_length
:
7628 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, finish
);
7629 READ_ULEB (length
, start
, finish
);
7630 end
= begin
+ length
;
7632 case DW_RLE_offset_pair
:
7633 READ_ULEB (begin
, start
, finish
);
7634 READ_ULEB (end
, start
, finish
);
7636 case DW_RLE_start_end
:
7637 SAFE_BYTE_GET_AND_INC (begin
, start
, pointer_size
, finish
);
7638 SAFE_BYTE_GET_AND_INC (end
, start
, pointer_size
, finish
);
7641 error (_("Invalid range list entry type %d\n"), rlet
);
7642 rlet
= DW_RLE_end_of_list
;
7645 if (rlet
== DW_RLE_end_of_list
)
7647 if (rlet
== DW_RLE_base_address
)
7650 /* Only a DW_RLE_offset_pair needs the base address added. */
7651 if (rlet
== DW_RLE_offset_pair
)
7653 begin
+= base_address
;
7654 end
+= base_address
;
7657 print_dwarf_vma (begin
, pointer_size
);
7658 print_dwarf_vma (end
, pointer_size
);
7661 fputs (_("(start == end)"), stdout
);
7662 else if (begin
> end
)
7663 fputs (_("(start > end)"), stdout
);
7670 display_debug_ranges (struct dwarf_section
*section
,
7671 void *file ATTRIBUTE_UNUSED
)
7673 unsigned char *start
= section
->start
;
7674 unsigned char *last_start
= start
;
7675 unsigned long bytes
= section
->size
;
7676 unsigned char *section_begin
= start
;
7677 unsigned char *finish
= start
+ bytes
;
7678 unsigned int num_range_list
, i
;
7679 struct range_entry
*range_entries
, *range_entry_fill
;
7680 int is_rnglists
= strstr (section
->name
, "debug_rnglists") != NULL
;
7681 /* Initialize it due to a false compiler warning. */
7682 unsigned char address_size
= 0;
7683 dwarf_vma last_offset
= 0;
7687 printf (_("\nThe %s section is empty.\n"), section
->name
);
7693 dwarf_vma initial_length
;
7694 unsigned char segment_selector_size
;
7695 unsigned int offset_size
, offset_entry_count
;
7696 unsigned short version
;
7698 /* Get and check the length of the block. */
7699 SAFE_BYTE_GET_AND_INC (initial_length
, start
, 4, finish
);
7701 if (initial_length
== 0xffffffff)
7703 /* This section is 64-bit DWARF 3. */
7704 SAFE_BYTE_GET_AND_INC (initial_length
, start
, 8, finish
);
7710 if (initial_length
> (size_t) (finish
- start
))
7712 /* If the length field has a relocation against it, then we should
7713 not complain if it is inaccurate (and probably negative).
7714 It is copied from .debug_line handling code. */
7715 if (reloc_at (section
, (start
- section
->start
) - offset_size
))
7717 initial_length
= finish
- start
;
7721 warn (_("The length field (0x%lx) in the debug_rnglists header is wrong - the section is too small\n"),
7722 (long) initial_length
);
7726 finish
= start
+ initial_length
;
7728 /* Get and check the version number. */
7729 SAFE_BYTE_GET_AND_INC (version
, start
, 2, finish
);
7733 warn (_("Only DWARF version 5 debug_rnglists info "
7734 "is currently supported.\n"));
7738 SAFE_BYTE_GET_AND_INC (address_size
, start
, 1, finish
);
7740 SAFE_BYTE_GET_AND_INC (segment_selector_size
, start
, 1, finish
);
7741 if (segment_selector_size
!= 0)
7743 warn (_("The %s section contains "
7744 "unsupported segment selector size: %d.\n"),
7745 section
->name
, segment_selector_size
);
7749 SAFE_BYTE_GET_AND_INC (offset_entry_count
, start
, 4, finish
);
7750 if (offset_entry_count
!= 0)
7752 warn (_("The %s section contains "
7753 "unsupported offset entry count: %u.\n"),
7754 section
->name
, offset_entry_count
);
7759 if (load_debug_info (file
) == 0)
7761 warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"),
7767 for (i
= 0; i
< num_debug_info_entries
; i
++)
7769 if (debug_information
[i
].dwarf_version
< 5 && is_rnglists
)
7770 /* Skip .debug_rnglists reference. */
7772 if (debug_information
[i
].dwarf_version
>= 5 && !is_rnglists
)
7773 /* Skip .debug_range reference. */
7775 num_range_list
+= debug_information
[i
].num_range_lists
;
7778 if (num_range_list
== 0)
7780 /* This can happen when the file was compiled with -gsplit-debug
7781 which removes references to range lists from the primary .o file. */
7782 printf (_("No range lists in .debug_info section.\n"));
7786 range_entries
= (struct range_entry
*)
7787 xmalloc (sizeof (*range_entries
) * num_range_list
);
7788 range_entry_fill
= range_entries
;
7790 for (i
= 0; i
< num_debug_info_entries
; i
++)
7792 debug_info
*debug_info_p
= &debug_information
[i
];
7795 if (debug_information
[i
].dwarf_version
< 5 && is_rnglists
)
7796 /* Skip .debug_rnglists reference. */
7798 if (debug_information
[i
].dwarf_version
>= 5 && !is_rnglists
)
7799 /* Skip .debug_range reference. */
7802 for (j
= 0; j
< debug_info_p
->num_range_lists
; j
++)
7804 range_entry_fill
->ranges_offset
= debug_info_p
->range_lists
[j
];
7805 range_entry_fill
->debug_info_p
= debug_info_p
;
7810 qsort (range_entries
, num_range_list
, sizeof (*range_entries
),
7811 range_entry_compar
);
7813 if (dwarf_check
!= 0 && range_entries
[0].ranges_offset
!= 0)
7814 warn (_("Range lists in %s section start at 0x%lx\n"),
7815 section
->name
, (unsigned long) range_entries
[0].ranges_offset
);
7817 introduce (section
, false);
7819 printf (_(" Offset Begin End\n"));
7821 for (i
= 0; i
< num_range_list
; i
++)
7823 struct range_entry
*range_entry
= &range_entries
[i
];
7824 debug_info
*debug_info_p
= range_entry
->debug_info_p
;
7825 unsigned int pointer_size
;
7827 unsigned char *next
;
7828 dwarf_vma base_address
;
7830 pointer_size
= (is_rnglists
? address_size
: debug_info_p
->pointer_size
);
7831 offset
= range_entry
->ranges_offset
;
7832 base_address
= debug_info_p
->base_address
;
7834 /* PR 17512: file: 001-101485-0.001:0.1. */
7835 if (pointer_size
< 2 || pointer_size
> 8)
7837 warn (_("Corrupt pointer size (%d) in debug entry at offset %8.8lx\n"),
7838 pointer_size
, (unsigned long) offset
);
7842 if (offset
> (size_t) (finish
- section_begin
))
7844 warn (_("Corrupt offset (%#8.8lx) in range entry %u\n"),
7845 (unsigned long) offset
, i
);
7848 next
= section_begin
+ offset
;
7850 /* If multiple DWARF entities reference the same range then we will
7851 have multiple entries in the `range_entries' list for the same
7852 offset. Thanks to the sort above these will all be consecutive in
7853 the `range_entries' list, so we can easily ignore duplicates
7855 if (i
> 0 && last_offset
== offset
)
7857 last_offset
= offset
;
7859 if (dwarf_check
!= 0 && i
> 0)
7862 warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
7863 (unsigned long) (start
- section_begin
),
7864 (unsigned long) (next
- section_begin
), section
->name
);
7865 else if (start
> next
)
7867 if (next
== last_start
)
7869 warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
7870 (unsigned long) (start
- section_begin
),
7871 (unsigned long) (next
- section_begin
), section
->name
);
7878 (is_rnglists
? display_debug_rnglists_list
: display_debug_ranges_list
)
7879 (start
, finish
, pointer_size
, offset
, base_address
);
7883 free (range_entries
);
7888 typedef struct Frame_Chunk
7890 struct Frame_Chunk
*next
;
7891 unsigned char *chunk_start
;
7893 /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */
7894 short int *col_type
;
7897 unsigned int code_factor
;
7901 unsigned int cfa_reg
;
7902 dwarf_vma cfa_offset
;
7904 unsigned char fde_encoding
;
7905 unsigned char cfa_exp
;
7906 unsigned char ptr_size
;
7907 unsigned char segment_size
;
7911 typedef const char *(*dwarf_regname_lookup_ftype
) (unsigned int);
7912 static dwarf_regname_lookup_ftype dwarf_regnames_lookup_func
;
7913 static const char *const *dwarf_regnames
;
7914 static unsigned int dwarf_regnames_count
;
7917 /* A marker for a col_type that means this column was never referenced
7918 in the frame info. */
7919 #define DW_CFA_unreferenced (-1)
7921 /* Return 0 if no more space is needed, 1 if more space is needed,
7922 -1 for invalid reg. */
7925 frame_need_space (Frame_Chunk
*fc
, unsigned int reg
)
7927 unsigned int prev
= fc
->ncols
;
7929 if (reg
< (unsigned int) fc
->ncols
)
7932 if (dwarf_regnames_count
> 0
7933 && reg
> dwarf_regnames_count
)
7936 fc
->ncols
= reg
+ 1;
7937 /* PR 17512: file: 10450-2643-0.004.
7938 If reg == -1 then this can happen... */
7942 /* PR 17512: file: 2844a11d. */
7943 if (fc
->ncols
> 1024 && dwarf_regnames_count
== 0)
7945 error (_("Unfeasibly large register number: %u\n"), reg
);
7947 /* FIXME: 1024 is an arbitrary limit. Increase it if
7948 we ever encounter a valid binary that exceeds it. */
7952 fc
->col_type
= (short int *) xcrealloc (fc
->col_type
, fc
->ncols
,
7953 sizeof (short int));
7954 fc
->col_offset
= (int *) xcrealloc (fc
->col_offset
, fc
->ncols
, sizeof (int));
7955 /* PR 17512: file:002-10025-0.005. */
7956 if (fc
->col_type
== NULL
|| fc
->col_offset
== NULL
)
7958 error (_("Out of memory allocating %u columns in dwarf frame arrays\n"),
7964 while (prev
< fc
->ncols
)
7966 fc
->col_type
[prev
] = DW_CFA_unreferenced
;
7967 fc
->col_offset
[prev
] = 0;
7973 static const char *const dwarf_regnames_i386
[] =
7975 "eax", "ecx", "edx", "ebx", /* 0 - 3 */
7976 "esp", "ebp", "esi", "edi", /* 4 - 7 */
7977 "eip", "eflags", NULL
, /* 8 - 10 */
7978 "st0", "st1", "st2", "st3", /* 11 - 14 */
7979 "st4", "st5", "st6", "st7", /* 15 - 18 */
7980 NULL
, NULL
, /* 19 - 20 */
7981 "xmm0", "xmm1", "xmm2", "xmm3", /* 21 - 24 */
7982 "xmm4", "xmm5", "xmm6", "xmm7", /* 25 - 28 */
7983 "mm0", "mm1", "mm2", "mm3", /* 29 - 32 */
7984 "mm4", "mm5", "mm6", "mm7", /* 33 - 36 */
7985 "fcw", "fsw", "mxcsr", /* 37 - 39 */
7986 "es", "cs", "ss", "ds", "fs", "gs", NULL
, NULL
, /* 40 - 47 */
7987 "tr", "ldtr", /* 48 - 49 */
7988 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 50 - 57 */
7989 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 58 - 65 */
7990 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 66 - 73 */
7991 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 74 - 81 */
7992 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 82 - 89 */
7993 NULL
, NULL
, NULL
, /* 90 - 92 */
7994 "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" /* 93 - 100 */
7997 static const char *const dwarf_regnames_iamcu
[] =
7999 "eax", "ecx", "edx", "ebx", /* 0 - 3 */
8000 "esp", "ebp", "esi", "edi", /* 4 - 7 */
8001 "eip", "eflags", NULL
, /* 8 - 10 */
8002 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 11 - 18 */
8003 NULL
, NULL
, /* 19 - 20 */
8004 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 21 - 28 */
8005 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 29 - 36 */
8006 NULL
, NULL
, NULL
, /* 37 - 39 */
8007 "es", "cs", "ss", "ds", "fs", "gs", NULL
, NULL
, /* 40 - 47 */
8008 "tr", "ldtr", /* 48 - 49 */
8009 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 50 - 57 */
8010 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 58 - 65 */
8011 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 66 - 73 */
8012 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 74 - 81 */
8013 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 82 - 89 */
8014 NULL
, NULL
, NULL
, /* 90 - 92 */
8015 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
/* 93 - 100 */
8019 init_dwarf_regnames_i386 (void)
8021 dwarf_regnames
= dwarf_regnames_i386
;
8022 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_i386
);
8023 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8027 init_dwarf_regnames_iamcu (void)
8029 dwarf_regnames
= dwarf_regnames_iamcu
;
8030 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_iamcu
);
8031 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8034 static const char *const dwarf_regnames_x86_64
[] =
8036 "rax", "rdx", "rcx", "rbx",
8037 "rsi", "rdi", "rbp", "rsp",
8038 "r8", "r9", "r10", "r11",
8039 "r12", "r13", "r14", "r15",
8041 "xmm0", "xmm1", "xmm2", "xmm3",
8042 "xmm4", "xmm5", "xmm6", "xmm7",
8043 "xmm8", "xmm9", "xmm10", "xmm11",
8044 "xmm12", "xmm13", "xmm14", "xmm15",
8045 "st0", "st1", "st2", "st3",
8046 "st4", "st5", "st6", "st7",
8047 "mm0", "mm1", "mm2", "mm3",
8048 "mm4", "mm5", "mm6", "mm7",
8050 "es", "cs", "ss", "ds", "fs", "gs", NULL
, NULL
,
8051 "fs.base", "gs.base", NULL
, NULL
,
8053 "mxcsr", "fcw", "fsw",
8054 "xmm16", "xmm17", "xmm18", "xmm19",
8055 "xmm20", "xmm21", "xmm22", "xmm23",
8056 "xmm24", "xmm25", "xmm26", "xmm27",
8057 "xmm28", "xmm29", "xmm30", "xmm31",
8058 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 83 - 90 */
8059 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 91 - 98 */
8060 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 99 - 106 */
8061 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, /* 107 - 114 */
8062 NULL
, NULL
, NULL
, /* 115 - 117 */
8063 "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7"
8067 init_dwarf_regnames_x86_64 (void)
8069 dwarf_regnames
= dwarf_regnames_x86_64
;
8070 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_x86_64
);
8071 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8074 static const char *const dwarf_regnames_aarch64
[] =
8076 "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7",
8077 "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15",
8078 "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23",
8079 "x24", "x25", "x26", "x27", "x28", "x29", "x30", "sp",
8080 NULL
, "elr", NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
8081 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, "vg", "ffr",
8082 "p0", "p1", "p2", "p3", "p4", "p5", "p6", "p7",
8083 "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15",
8084 "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7",
8085 "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15",
8086 "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23",
8087 "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31",
8088 "z0", "z1", "z2", "z3", "z4", "z5", "z6", "z7",
8089 "z8", "z9", "z10", "z11", "z12", "z13", "z14", "z15",
8090 "z16", "z17", "z18", "z19", "z20", "z21", "z22", "z23",
8091 "z24", "z25", "z26", "z27", "z28", "z29", "z30", "z31",
8095 init_dwarf_regnames_aarch64 (void)
8097 dwarf_regnames
= dwarf_regnames_aarch64
;
8098 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_aarch64
);
8099 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8102 static const char *const dwarf_regnames_s390
[] =
8104 /* Avoid saying "r5 (r5)", so omit the names of r0-r15. */
8105 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
8106 NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
, NULL
,
8107 "f0", "f2", "f4", "f6", "f1", "f3", "f5", "f7",
8108 "f8", "f10", "f12", "f14", "f9", "f11", "f13", "f15",
8109 "cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7",
8110 "cr8", "cr9", "cr10", "cr11", "cr12", "cr13", "cr14", "cr15",
8111 "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7",
8112 "a8", "a9", "a10", "a11", "a12", "a13", "a14", "a15",
8115 "v16", "v18", "v20", "v22", "v17", "v19", "v21", "v23",
8116 "v24", "v26", "v28", "v30", "v25", "v27", "v29", "v31",
8120 init_dwarf_regnames_s390 (void)
8122 dwarf_regnames
= dwarf_regnames_s390
;
8123 dwarf_regnames_count
= ARRAY_SIZE (dwarf_regnames_s390
);
8124 dwarf_regnames_lookup_func
= regname_internal_by_table_only
;
8127 static const char *const dwarf_regnames_riscv
[] =
8129 "zero", "ra", "sp", "gp", "tp", "t0", "t1", "t2", /* 0 - 7 */
8130 "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5", /* 8 - 15 */
8131 "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7", /* 16 - 23 */
8132 "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6", /* 24 - 31 */
8133 "ft0", "ft1", "ft2", "ft3", "ft4", "ft5", "ft6", "ft7", /* 32 - 39 */
8134 "fs0", "fs1", /* 40 - 41 */
8135 "fa0", "fa1", "fa2", "fa3", "fa4", "fa5", "fa6", "fa7", /* 42 - 49 */
8136 "fs2", "fs3", "fs4", "fs5", "fs6", "fs7", "fs8", "fs9", /* 50 - 57 */
8137 "fs10", "fs11", /* 58 - 59 */
8138 "ft8", "ft9", "ft10", "ft11" /* 60 - 63 */
8141 /* A RISC-V replacement for REGNAME_INTERNAL_BY_TABLE_ONLY which handles
8142 the large number of CSRs. */
8145 regname_internal_riscv (unsigned int regno
)
8147 const char *name
= NULL
;
8149 /* Lookup in the table first, this covers GPR and FPR. */
8150 if (regno
< ARRAY_SIZE (dwarf_regnames_riscv
))
8151 name
= dwarf_regnames_riscv
[regno
];
8152 else if (regno
>= 4096 && regno
<= 8191)
8154 /* This might be a CSR, these live in a sparse number space from 4096
8155 to 8191 These numbers are defined in the RISC-V ELF ABI
8159 #define DECLARE_CSR(NAME,VALUE,CLASS,DEFINE_VER,ABORT_VER) \
8160 case VALUE + 4096: name = #NAME; break;
8161 #include "opcode/riscv-opc.h"
8166 static char csr_name
[10];
8167 snprintf (csr_name
, sizeof (csr_name
), "csr%d", (regno
- 4096));
8178 init_dwarf_regnames_riscv (void)
8180 dwarf_regnames
= NULL
;
8181 dwarf_regnames_count
= 8192;
8182 dwarf_regnames_lookup_func
= regname_internal_riscv
;
8186 init_dwarf_regnames_by_elf_machine_code (unsigned int e_machine
)
8188 dwarf_regnames_lookup_func
= NULL
;
8193 init_dwarf_regnames_i386 ();
8197 init_dwarf_regnames_iamcu ();
8203 init_dwarf_regnames_x86_64 ();
8207 init_dwarf_regnames_aarch64 ();
8211 init_dwarf_regnames_s390 ();
8215 init_dwarf_regnames_riscv ();
8223 /* Initialize the DWARF register name lookup state based on the
8224 architecture and specific machine type of a BFD. */
8227 init_dwarf_regnames_by_bfd_arch_and_mach (enum bfd_architecture arch
,
8230 dwarf_regnames_lookup_func
= NULL
;
8237 case bfd_mach_x86_64
:
8238 case bfd_mach_x86_64_intel_syntax
:
8239 case bfd_mach_x64_32
:
8240 case bfd_mach_x64_32_intel_syntax
:
8241 init_dwarf_regnames_x86_64 ();
8245 init_dwarf_regnames_i386 ();
8250 case bfd_arch_iamcu
:
8251 init_dwarf_regnames_iamcu ();
8254 case bfd_arch_aarch64
:
8255 init_dwarf_regnames_aarch64();
8259 init_dwarf_regnames_s390 ();
8262 case bfd_arch_riscv
:
8263 init_dwarf_regnames_riscv ();
8272 regname_internal_by_table_only (unsigned int regno
)
8274 if (dwarf_regnames
!= NULL
8275 && regno
< dwarf_regnames_count
8276 && dwarf_regnames
[regno
] != NULL
)
8277 return dwarf_regnames
[regno
];
8283 regname (unsigned int regno
, int name_only_p
)
8285 static char reg
[64];
8287 const char *name
= NULL
;
8289 if (dwarf_regnames_lookup_func
!= NULL
)
8290 name
= dwarf_regnames_lookup_func (regno
);
8296 snprintf (reg
, sizeof (reg
), "r%d (%s)", regno
, name
);
8299 snprintf (reg
, sizeof (reg
), "r%d", regno
);
8304 frame_display_row (Frame_Chunk
*fc
, int *need_col_headers
, unsigned int *max_regs
)
8309 if (*max_regs
!= fc
->ncols
)
8310 *max_regs
= fc
->ncols
;
8312 if (*need_col_headers
)
8314 *need_col_headers
= 0;
8316 printf ("%-*s CFA ", eh_addr_size
* 2, " LOC");
8318 for (r
= 0; r
< *max_regs
; r
++)
8319 if (fc
->col_type
[r
] != DW_CFA_unreferenced
)
8324 printf ("%-5s ", regname (r
, 1));
8330 print_dwarf_vma (fc
->pc_begin
, eh_addr_size
);
8332 strcpy (tmp
, "exp");
8334 sprintf (tmp
, "%s%+d", regname (fc
->cfa_reg
, 1), (int) fc
->cfa_offset
);
8335 printf ("%-8s ", tmp
);
8337 for (r
= 0; r
< fc
->ncols
; r
++)
8339 if (fc
->col_type
[r
] != DW_CFA_unreferenced
)
8341 switch (fc
->col_type
[r
])
8343 case DW_CFA_undefined
:
8346 case DW_CFA_same_value
:
8350 sprintf (tmp
, "c%+d", fc
->col_offset
[r
]);
8352 case DW_CFA_val_offset
:
8353 sprintf (tmp
, "v%+d", fc
->col_offset
[r
]);
8355 case DW_CFA_register
:
8356 sprintf (tmp
, "%s", regname (fc
->col_offset
[r
], 0));
8358 case DW_CFA_expression
:
8359 strcpy (tmp
, "exp");
8361 case DW_CFA_val_expression
:
8362 strcpy (tmp
, "vexp");
8365 strcpy (tmp
, "n/a");
8368 printf ("%-5s ", tmp
);
8374 #define GET(VAR, N) SAFE_BYTE_GET_AND_INC (VAR, start, N, end)
8376 static unsigned char *
8377 read_cie (unsigned char *start
, unsigned char *end
,
8378 Frame_Chunk
**p_cie
, int *p_version
,
8379 bfd_size_type
*p_aug_len
, unsigned char **p_aug
)
8383 unsigned char *augmentation_data
= NULL
;
8384 bfd_size_type augmentation_data_len
= 0;
8387 /* PR 17512: file: 001-228113-0.004. */
8391 fc
= (Frame_Chunk
*) xmalloc (sizeof (Frame_Chunk
));
8392 memset (fc
, 0, sizeof (Frame_Chunk
));
8394 fc
->col_type
= (short int *) xmalloc (sizeof (short int));
8395 fc
->col_offset
= (int *) xmalloc (sizeof (int));
8399 fc
->augmentation
= (char *) start
;
8400 /* PR 17512: file: 001-228113-0.004.
8401 Skip past augmentation name, but avoid running off the end of the data. */
8403 if (* start
++ == '\0')
8407 warn (_("No terminator for augmentation name\n"));
8411 if (strcmp (fc
->augmentation
, "eh") == 0)
8413 if (eh_addr_size
> (size_t) (end
- start
))
8415 start
+= eh_addr_size
;
8420 if (2 > (size_t) (end
- start
))
8422 GET (fc
->ptr_size
, 1);
8423 if (fc
->ptr_size
< 1 || fc
->ptr_size
> 8)
8425 warn (_("Invalid pointer size (%d) in CIE data\n"), fc
->ptr_size
);
8429 GET (fc
->segment_size
, 1);
8430 /* PR 17512: file: e99d2804. */
8431 if (fc
->segment_size
> 8 || fc
->segment_size
+ fc
->ptr_size
> 8)
8433 warn (_("Invalid segment size (%d) in CIE data\n"), fc
->segment_size
);
8437 eh_addr_size
= fc
->ptr_size
;
8441 fc
->ptr_size
= eh_addr_size
;
8442 fc
->segment_size
= 0;
8445 READ_ULEB (fc
->code_factor
, start
, end
);
8446 READ_SLEB (fc
->data_factor
, start
, end
);
8457 READ_ULEB (fc
->ra
, start
, end
);
8460 if (fc
->augmentation
[0] == 'z')
8464 READ_ULEB (augmentation_data_len
, start
, end
);
8465 augmentation_data
= start
;
8466 /* PR 17512: file: 11042-2589-0.004. */
8467 if (augmentation_data_len
> (bfd_size_type
) (end
- start
))
8469 warn (_("Augmentation data too long: 0x%s, expected at most %#lx\n"),
8470 dwarf_vmatoa ("x", augmentation_data_len
),
8471 (unsigned long) (end
- start
));
8474 start
+= augmentation_data_len
;
8477 if (augmentation_data_len
)
8481 unsigned char *qend
;
8483 p
= (unsigned char *) fc
->augmentation
+ 1;
8484 q
= augmentation_data
;
8485 qend
= q
+ augmentation_data_len
;
8487 while (p
< end
&& q
< qend
)
8492 q
+= 1 + size_of_encoded_value (*q
);
8494 fc
->fde_encoding
= *q
++;
8503 /* Note - it is OK if this loop terminates with q < qend.
8504 Padding may have been inserted to align the end of the CIE. */
8509 *p_version
= version
;
8512 *p_aug_len
= augmentation_data_len
;
8513 *p_aug
= augmentation_data
;
8518 free (fc
->col_offset
);
8519 free (fc
->col_type
);
8524 /* Prints out the contents on the DATA array formatted as unsigned bytes.
8525 If do_wide is not enabled, then formats the output to fit into 80 columns.
8526 PRINTED contains the number of characters already written to the current
8530 display_data (bfd_size_type printed
,
8531 const unsigned char * data
,
8532 const bfd_size_type len
)
8534 if (do_wide
|| len
< ((80 - printed
) / 3))
8535 for (printed
= 0; printed
< len
; ++printed
)
8536 printf (" %02x", data
[printed
]);
8539 for (printed
= 0; printed
< len
; ++printed
)
8541 if (printed
% (80 / 3) == 0)
8543 printf (" %02x", data
[printed
]);
8548 /* Prints out the contents on the augmentation data array.
8549 If do_wide is not enabled, then formats the output to fit into 80 columns. */
8552 display_augmentation_data (const unsigned char * data
, const bfd_size_type len
)
8556 i
= printf (_(" Augmentation data: "));
8557 display_data (i
, data
, len
);
8561 display_debug_frames (struct dwarf_section
*section
,
8562 void *file ATTRIBUTE_UNUSED
)
8564 unsigned char *start
= section
->start
;
8565 unsigned char *end
= start
+ section
->size
;
8566 unsigned char *section_start
= start
;
8567 Frame_Chunk
*chunks
= NULL
, *forward_refs
= NULL
;
8568 Frame_Chunk
*remembered_state
= NULL
;
8570 bool is_eh
= strcmp (section
->name
, ".eh_frame") == 0;
8571 unsigned int max_regs
= 0;
8572 const char *bad_reg
= _("bad register: ");
8573 unsigned int saved_eh_addr_size
= eh_addr_size
;
8575 introduce (section
, false);
8579 unsigned char *saved_start
;
8580 unsigned char *block_end
;
8585 int need_col_headers
= 1;
8586 unsigned char *augmentation_data
= NULL
;
8587 bfd_size_type augmentation_data_len
= 0;
8588 unsigned int encoded_ptr_size
= saved_eh_addr_size
;
8589 unsigned int offset_size
;
8591 static Frame_Chunk fde_fc
;
8593 saved_start
= start
;
8595 SAFE_BYTE_GET_AND_INC (length
, start
, 4, end
);
8599 printf ("\n%08lx ZERO terminator\n\n",
8600 (unsigned long)(saved_start
- section_start
));
8601 /* Skip any zero terminators that directly follow.
8602 A corrupt section size could have loaded a whole
8603 slew of zero filled memory bytes. eg
8604 PR 17512: file: 070-19381-0.004. */
8605 while (start
< end
&& * start
== 0)
8610 if (length
== 0xffffffff)
8612 SAFE_BYTE_GET_AND_INC (length
, start
, 8, end
);
8618 if (length
> (size_t) (end
- start
))
8620 warn ("Invalid length 0x%s in FDE at %#08lx\n",
8621 dwarf_vmatoa_1 (NULL
, length
, offset_size
),
8622 (unsigned long) (saved_start
- section_start
));
8626 block_end
= start
+ length
;
8628 SAFE_BYTE_GET_AND_INC (cie_id
, start
, offset_size
, block_end
);
8630 if (is_eh
? (cie_id
== 0) : ((offset_size
== 4 && cie_id
== DW_CIE_ID
)
8631 || (offset_size
== 8 && cie_id
== DW64_CIE_ID
)))
8636 start
= read_cie (start
, block_end
, &cie
, &version
,
8637 &augmentation_data_len
, &augmentation_data
);
8638 /* PR 17512: file: 027-135133-0.005. */
8645 fc
->chunk_start
= saved_start
;
8646 mreg
= max_regs
> 0 ? max_regs
- 1 : 0;
8649 if (frame_need_space (fc
, mreg
) < 0)
8651 if (fc
->fde_encoding
)
8652 encoded_ptr_size
= size_of_encoded_value (fc
->fde_encoding
);
8654 printf ("\n%08lx ", (unsigned long) (saved_start
- section_start
));
8655 print_dwarf_vma (length
, fc
->ptr_size
);
8656 print_dwarf_vma (cie_id
, offset_size
);
8658 if (do_debug_frames_interp
)
8660 printf ("CIE \"%s\" cf=%d df=%d ra=%d\n", fc
->augmentation
,
8661 fc
->code_factor
, fc
->data_factor
, fc
->ra
);
8666 printf (" Version: %d\n", version
);
8667 printf (" Augmentation: \"%s\"\n", fc
->augmentation
);
8670 printf (" Pointer Size: %u\n", fc
->ptr_size
);
8671 printf (" Segment Size: %u\n", fc
->segment_size
);
8673 printf (" Code alignment factor: %u\n", fc
->code_factor
);
8674 printf (" Data alignment factor: %d\n", fc
->data_factor
);
8675 printf (" Return address column: %d\n", fc
->ra
);
8677 if (augmentation_data_len
)
8678 display_augmentation_data (augmentation_data
, augmentation_data_len
);
8685 unsigned char *look_for
;
8686 unsigned long segment_selector
;
8692 dwarf_vma sign
= (dwarf_vma
) 1 << (offset_size
* 8 - 1);
8693 cie_off
= (cie_off
^ sign
) - sign
;
8694 cie_off
= start
- 4 - section_start
- cie_off
;
8697 look_for
= section_start
+ cie_off
;
8698 if (cie_off
<= (dwarf_vma
) (saved_start
- section_start
))
8700 for (cie
= chunks
; cie
; cie
= cie
->next
)
8701 if (cie
->chunk_start
== look_for
)
8704 else if (cie_off
>= section
->size
)
8708 for (cie
= forward_refs
; cie
; cie
= cie
->next
)
8709 if (cie
->chunk_start
== look_for
)
8713 unsigned int off_size
;
8714 unsigned char *cie_scan
;
8716 cie_scan
= look_for
;
8718 SAFE_BYTE_GET_AND_INC (length
, cie_scan
, 4, end
);
8719 if (length
== 0xffffffff)
8721 SAFE_BYTE_GET_AND_INC (length
, cie_scan
, 8, end
);
8724 if (length
!= 0 && length
<= (size_t) (end
- cie_scan
))
8727 unsigned char *cie_end
= cie_scan
+ length
;
8729 SAFE_BYTE_GET_AND_INC (c_id
, cie_scan
, off_size
,
8733 : ((off_size
== 4 && c_id
== DW_CIE_ID
)
8734 || (off_size
== 8 && c_id
== DW64_CIE_ID
)))
8739 read_cie (cie_scan
, cie_end
, &cie
, &version
,
8740 &augmentation_data_len
, &augmentation_data
);
8741 /* PR 17512: file: 3450-2098-0.004. */
8744 warn (_("Failed to read CIE information\n"));
8747 cie
->next
= forward_refs
;
8749 cie
->chunk_start
= look_for
;
8750 mreg
= max_regs
> 0 ? max_regs
- 1 : 0;
8753 if (frame_need_space (cie
, mreg
) < 0)
8755 warn (_("Invalid max register\n"));
8758 if (cie
->fde_encoding
)
8760 = size_of_encoded_value (cie
->fde_encoding
);
8767 memset (fc
, 0, sizeof (Frame_Chunk
));
8771 warn ("Invalid CIE pointer 0x%s in FDE at %#08lx\n",
8772 dwarf_vmatoa_1 (NULL
, cie_id
, offset_size
),
8773 (unsigned long) (saved_start
- section_start
));
8775 fc
->col_type
= (short int *) xmalloc (sizeof (short int));
8776 fc
->col_offset
= (int *) xmalloc (sizeof (int));
8777 if (frame_need_space (fc
, max_regs
> 0 ? max_regs
- 1 : 0) < 0)
8779 warn (_("Invalid max register\n"));
8783 fc
->augmentation
= "";
8784 fc
->fde_encoding
= 0;
8785 fc
->ptr_size
= eh_addr_size
;
8786 fc
->segment_size
= 0;
8790 fc
->ncols
= cie
->ncols
;
8791 fc
->col_type
= (short int *) xcmalloc (fc
->ncols
, sizeof (short int));
8792 fc
->col_offset
= (int *) xcmalloc (fc
->ncols
, sizeof (int));
8793 memcpy (fc
->col_type
, cie
->col_type
, fc
->ncols
* sizeof (short int));
8794 memcpy (fc
->col_offset
, cie
->col_offset
, fc
->ncols
* sizeof (int));
8795 fc
->augmentation
= cie
->augmentation
;
8796 fc
->ptr_size
= cie
->ptr_size
;
8797 eh_addr_size
= cie
->ptr_size
;
8798 fc
->segment_size
= cie
->segment_size
;
8799 fc
->code_factor
= cie
->code_factor
;
8800 fc
->data_factor
= cie
->data_factor
;
8801 fc
->cfa_reg
= cie
->cfa_reg
;
8802 fc
->cfa_offset
= cie
->cfa_offset
;
8804 if (frame_need_space (fc
, max_regs
> 0 ? max_regs
- 1: 0) < 0)
8806 warn (_("Invalid max register\n"));
8809 fc
->fde_encoding
= cie
->fde_encoding
;
8812 if (fc
->fde_encoding
)
8813 encoded_ptr_size
= size_of_encoded_value (fc
->fde_encoding
);
8815 segment_selector
= 0;
8816 if (fc
->segment_size
)
8818 if (fc
->segment_size
> sizeof (segment_selector
))
8820 /* PR 17512: file: 9e196b3e. */
8821 warn (_("Probably corrupt segment size: %d - using 4 instead\n"), fc
->segment_size
);
8822 fc
->segment_size
= 4;
8824 SAFE_BYTE_GET_AND_INC (segment_selector
, start
,
8825 fc
->segment_size
, block_end
);
8828 fc
->pc_begin
= get_encoded_value (&start
, fc
->fde_encoding
, section
,
8831 /* FIXME: It appears that sometimes the final pc_range value is
8832 encoded in less than encoded_ptr_size bytes. See the x86_64
8833 run of the "objcopy on compressed debug sections" test for an
8835 SAFE_BYTE_GET_AND_INC (fc
->pc_range
, start
, encoded_ptr_size
,
8838 if (cie
->augmentation
[0] == 'z')
8840 READ_ULEB (augmentation_data_len
, start
, block_end
);
8841 augmentation_data
= start
;
8842 /* PR 17512 file: 722-8446-0.004 and PR 22386. */
8843 if (augmentation_data_len
> (bfd_size_type
) (block_end
- start
))
8845 warn (_("Augmentation data too long: 0x%s, "
8846 "expected at most %#lx\n"),
8847 dwarf_vmatoa ("x", augmentation_data_len
),
8848 (unsigned long) (block_end
- start
));
8850 augmentation_data
= NULL
;
8851 augmentation_data_len
= 0;
8853 start
+= augmentation_data_len
;
8856 printf ("\n%08lx %s %s FDE cie=%08lx pc=",
8857 (unsigned long)(saved_start
- section_start
),
8858 dwarf_vmatoa_1 (NULL
, length
, fc
->ptr_size
),
8859 dwarf_vmatoa_1 (NULL
, cie_id
, offset_size
),
8860 (unsigned long)(cie
->chunk_start
- section_start
));
8862 if (fc
->segment_size
)
8863 printf ("%04lx:", segment_selector
);
8866 dwarf_vmatoa_1 (NULL
, fc
->pc_begin
, fc
->ptr_size
),
8867 dwarf_vmatoa_1 (NULL
, fc
->pc_begin
+ fc
->pc_range
, fc
->ptr_size
));
8869 if (! do_debug_frames_interp
&& augmentation_data_len
)
8871 display_augmentation_data (augmentation_data
, augmentation_data_len
);
8876 /* At this point, fc is the current chunk, cie (if any) is set, and
8877 we're about to interpret instructions for the chunk. */
8878 /* ??? At present we need to do this always, since this sizes the
8879 fc->col_type and fc->col_offset arrays, which we write into always.
8880 We should probably split the interpreted and non-interpreted bits
8881 into two different routines, since there's so much that doesn't
8882 really overlap between them. */
8883 if (1 || do_debug_frames_interp
)
8885 /* Start by making a pass over the chunk, allocating storage
8886 and taking note of what registers are used. */
8887 unsigned char *tmp
= start
;
8889 while (start
< block_end
)
8891 unsigned int reg
, op
, opa
;
8899 /* Warning: if you add any more cases to this switch, be
8900 sure to add them to the corresponding switch below. */
8903 case DW_CFA_advance_loc
:
8906 SKIP_ULEB (start
, block_end
);
8907 if (frame_need_space (fc
, opa
) >= 0)
8908 fc
->col_type
[opa
] = DW_CFA_undefined
;
8910 case DW_CFA_restore
:
8911 if (frame_need_space (fc
, opa
) >= 0)
8912 fc
->col_type
[opa
] = DW_CFA_undefined
;
8914 case DW_CFA_set_loc
:
8915 if ((size_t) (block_end
- start
) < encoded_ptr_size
)
8918 start
+= encoded_ptr_size
;
8920 case DW_CFA_advance_loc1
:
8921 if ((size_t) (block_end
- start
) < 1)
8926 case DW_CFA_advance_loc2
:
8927 if ((size_t) (block_end
- start
) < 2)
8932 case DW_CFA_advance_loc4
:
8933 if ((size_t) (block_end
- start
) < 4)
8938 case DW_CFA_offset_extended
:
8939 case DW_CFA_val_offset
:
8940 READ_ULEB (reg
, start
, block_end
);
8941 SKIP_ULEB (start
, block_end
);
8942 if (frame_need_space (fc
, reg
) >= 0)
8943 fc
->col_type
[reg
] = DW_CFA_undefined
;
8945 case DW_CFA_restore_extended
:
8946 READ_ULEB (reg
, start
, block_end
);
8947 if (frame_need_space (fc
, reg
) >= 0)
8948 fc
->col_type
[reg
] = DW_CFA_undefined
;
8950 case DW_CFA_undefined
:
8951 READ_ULEB (reg
, start
, block_end
);
8952 if (frame_need_space (fc
, reg
) >= 0)
8953 fc
->col_type
[reg
] = DW_CFA_undefined
;
8955 case DW_CFA_same_value
:
8956 READ_ULEB (reg
, start
, block_end
);
8957 if (frame_need_space (fc
, reg
) >= 0)
8958 fc
->col_type
[reg
] = DW_CFA_undefined
;
8960 case DW_CFA_register
:
8961 READ_ULEB (reg
, start
, block_end
);
8962 SKIP_ULEB (start
, block_end
);
8963 if (frame_need_space (fc
, reg
) >= 0)
8964 fc
->col_type
[reg
] = DW_CFA_undefined
;
8966 case DW_CFA_def_cfa
:
8967 SKIP_ULEB (start
, block_end
);
8968 SKIP_ULEB (start
, block_end
);
8970 case DW_CFA_def_cfa_register
:
8971 SKIP_ULEB (start
, block_end
);
8973 case DW_CFA_def_cfa_offset
:
8974 SKIP_ULEB (start
, block_end
);
8976 case DW_CFA_def_cfa_expression
:
8977 READ_ULEB (temp
, start
, block_end
);
8978 if ((size_t) (block_end
- start
) < temp
)
8983 case DW_CFA_expression
:
8984 case DW_CFA_val_expression
:
8985 READ_ULEB (reg
, start
, block_end
);
8986 READ_ULEB (temp
, start
, block_end
);
8987 if ((size_t) (block_end
- start
) < temp
)
8991 if (frame_need_space (fc
, reg
) >= 0)
8992 fc
->col_type
[reg
] = DW_CFA_undefined
;
8994 case DW_CFA_offset_extended_sf
:
8995 case DW_CFA_val_offset_sf
:
8996 READ_ULEB (reg
, start
, block_end
);
8997 SKIP_SLEB (start
, block_end
);
8998 if (frame_need_space (fc
, reg
) >= 0)
8999 fc
->col_type
[reg
] = DW_CFA_undefined
;
9001 case DW_CFA_def_cfa_sf
:
9002 SKIP_ULEB (start
, block_end
);
9003 SKIP_SLEB (start
, block_end
);
9005 case DW_CFA_def_cfa_offset_sf
:
9006 SKIP_SLEB (start
, block_end
);
9008 case DW_CFA_MIPS_advance_loc8
:
9009 if ((size_t) (block_end
- start
) < 8)
9014 case DW_CFA_GNU_args_size
:
9015 SKIP_ULEB (start
, block_end
);
9017 case DW_CFA_GNU_negative_offset_extended
:
9018 READ_ULEB (reg
, start
, block_end
);
9019 SKIP_ULEB (start
, block_end
);
9020 if (frame_need_space (fc
, reg
) >= 0)
9021 fc
->col_type
[reg
] = DW_CFA_undefined
;
9032 /* Now we know what registers are used, make a second pass over
9033 the chunk, this time actually printing out the info. */
9035 while (start
< block_end
)
9038 unsigned long ul
, roffs
;
9039 /* Note: It is tempting to use an unsigned long for 'reg' but there
9040 are various functions, notably frame_space_needed() that assume that
9041 reg is an unsigned int. */
9046 const char *reg_prefix
= "";
9053 /* Make a note if something other than DW_CFA_nop happens. */
9054 if (op
!= DW_CFA_nop
)
9057 /* Warning: if you add any more cases to this switch, be
9058 sure to add them to the corresponding switch above. */
9061 case DW_CFA_advance_loc
:
9062 if (do_debug_frames_interp
)
9063 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9065 printf (" DW_CFA_advance_loc: %d to %s\n",
9066 opa
* fc
->code_factor
,
9067 dwarf_vmatoa_1 (NULL
,
9068 fc
->pc_begin
+ opa
* fc
->code_factor
,
9070 fc
->pc_begin
+= opa
* fc
->code_factor
;
9074 READ_ULEB (roffs
, start
, block_end
);
9075 if (opa
>= (unsigned int) fc
->ncols
)
9076 reg_prefix
= bad_reg
;
9077 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9078 printf (" DW_CFA_offset: %s%s at cfa%+ld\n",
9079 reg_prefix
, regname (opa
, 0),
9080 roffs
* fc
->data_factor
);
9081 if (*reg_prefix
== '\0')
9083 fc
->col_type
[opa
] = DW_CFA_offset
;
9084 fc
->col_offset
[opa
] = roffs
* fc
->data_factor
;
9088 case DW_CFA_restore
:
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_restore: %s%s\n",
9093 reg_prefix
, regname (opa
, 0));
9094 if (*reg_prefix
!= '\0')
9097 if (opa
>= (unsigned int) cie
->ncols
9098 || (do_debug_frames_interp
9099 && cie
->col_type
[opa
] == DW_CFA_unreferenced
))
9101 fc
->col_type
[opa
] = DW_CFA_undefined
;
9102 fc
->col_offset
[opa
] = 0;
9106 fc
->col_type
[opa
] = cie
->col_type
[opa
];
9107 fc
->col_offset
[opa
] = cie
->col_offset
[opa
];
9111 case DW_CFA_set_loc
:
9112 vma
= get_encoded_value (&start
, fc
->fde_encoding
, section
,
9114 if (do_debug_frames_interp
)
9115 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9117 printf (" DW_CFA_set_loc: %s\n",
9118 dwarf_vmatoa_1 (NULL
, vma
, fc
->ptr_size
));
9122 case DW_CFA_advance_loc1
:
9123 SAFE_BYTE_GET_AND_INC (ofs
, start
, 1, block_end
);
9124 if (do_debug_frames_interp
)
9125 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9127 printf (" DW_CFA_advance_loc1: %ld to %s\n",
9128 (unsigned long) (ofs
* fc
->code_factor
),
9129 dwarf_vmatoa_1 (NULL
,
9130 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9132 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9135 case DW_CFA_advance_loc2
:
9136 SAFE_BYTE_GET_AND_INC (ofs
, start
, 2, block_end
);
9137 if (do_debug_frames_interp
)
9138 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9140 printf (" DW_CFA_advance_loc2: %ld to %s\n",
9141 (unsigned long) (ofs
* fc
->code_factor
),
9142 dwarf_vmatoa_1 (NULL
,
9143 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9145 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9148 case DW_CFA_advance_loc4
:
9149 SAFE_BYTE_GET_AND_INC (ofs
, start
, 4, block_end
);
9150 if (do_debug_frames_interp
)
9151 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9153 printf (" DW_CFA_advance_loc4: %ld to %s\n",
9154 (unsigned long) (ofs
* fc
->code_factor
),
9155 dwarf_vmatoa_1 (NULL
,
9156 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9158 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9161 case DW_CFA_offset_extended
:
9162 READ_ULEB (reg
, start
, block_end
);
9163 READ_ULEB (roffs
, start
, block_end
);
9164 if (reg
>= (unsigned int) fc
->ncols
)
9165 reg_prefix
= bad_reg
;
9166 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9167 printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n",
9168 reg_prefix
, regname (reg
, 0),
9169 roffs
* fc
->data_factor
);
9170 if (*reg_prefix
== '\0')
9172 fc
->col_type
[reg
] = DW_CFA_offset
;
9173 fc
->col_offset
[reg
] = roffs
* fc
->data_factor
;
9177 case DW_CFA_val_offset
:
9178 READ_ULEB (reg
, start
, block_end
);
9179 READ_ULEB (roffs
, start
, block_end
);
9180 if (reg
>= (unsigned int) fc
->ncols
)
9181 reg_prefix
= bad_reg
;
9182 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9183 printf (" DW_CFA_val_offset: %s%s is cfa%+ld\n",
9184 reg_prefix
, regname (reg
, 0),
9185 roffs
* fc
->data_factor
);
9186 if (*reg_prefix
== '\0')
9188 fc
->col_type
[reg
] = DW_CFA_val_offset
;
9189 fc
->col_offset
[reg
] = roffs
* fc
->data_factor
;
9193 case DW_CFA_restore_extended
:
9194 READ_ULEB (reg
, start
, block_end
);
9195 if (reg
>= (unsigned int) fc
->ncols
)
9196 reg_prefix
= bad_reg
;
9197 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9198 printf (" DW_CFA_restore_extended: %s%s\n",
9199 reg_prefix
, regname (reg
, 0));
9200 if (*reg_prefix
!= '\0')
9203 if (reg
>= (unsigned int) cie
->ncols
)
9205 fc
->col_type
[reg
] = DW_CFA_undefined
;
9206 fc
->col_offset
[reg
] = 0;
9210 fc
->col_type
[reg
] = cie
->col_type
[reg
];
9211 fc
->col_offset
[reg
] = cie
->col_offset
[reg
];
9215 case DW_CFA_undefined
:
9216 READ_ULEB (reg
, start
, block_end
);
9217 if (reg
>= (unsigned int) fc
->ncols
)
9218 reg_prefix
= bad_reg
;
9219 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9220 printf (" DW_CFA_undefined: %s%s\n",
9221 reg_prefix
, regname (reg
, 0));
9222 if (*reg_prefix
== '\0')
9224 fc
->col_type
[reg
] = DW_CFA_undefined
;
9225 fc
->col_offset
[reg
] = 0;
9229 case DW_CFA_same_value
:
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_same_value: %s%s\n",
9235 reg_prefix
, regname (reg
, 0));
9236 if (*reg_prefix
== '\0')
9238 fc
->col_type
[reg
] = DW_CFA_same_value
;
9239 fc
->col_offset
[reg
] = 0;
9243 case DW_CFA_register
:
9244 READ_ULEB (reg
, start
, block_end
);
9245 READ_ULEB (roffs
, start
, block_end
);
9246 if (reg
>= (unsigned int) fc
->ncols
)
9247 reg_prefix
= bad_reg
;
9248 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9250 printf (" DW_CFA_register: %s%s in ",
9251 reg_prefix
, regname (reg
, 0));
9252 puts (regname (roffs
, 0));
9254 if (*reg_prefix
== '\0')
9256 fc
->col_type
[reg
] = DW_CFA_register
;
9257 fc
->col_offset
[reg
] = roffs
;
9261 case DW_CFA_remember_state
:
9262 if (! do_debug_frames_interp
)
9263 printf (" DW_CFA_remember_state\n");
9264 rs
= (Frame_Chunk
*) xmalloc (sizeof (Frame_Chunk
));
9265 rs
->cfa_offset
= fc
->cfa_offset
;
9266 rs
->cfa_reg
= fc
->cfa_reg
;
9268 rs
->cfa_exp
= fc
->cfa_exp
;
9269 rs
->ncols
= fc
->ncols
;
9270 rs
->col_type
= (short int *) xcmalloc (rs
->ncols
,
9271 sizeof (* rs
->col_type
));
9272 rs
->col_offset
= (int *) xcmalloc (rs
->ncols
, sizeof (* rs
->col_offset
));
9273 memcpy (rs
->col_type
, fc
->col_type
, rs
->ncols
* sizeof (* fc
->col_type
));
9274 memcpy (rs
->col_offset
, fc
->col_offset
, rs
->ncols
* sizeof (* fc
->col_offset
));
9275 rs
->next
= remembered_state
;
9276 remembered_state
= rs
;
9279 case DW_CFA_restore_state
:
9280 if (! do_debug_frames_interp
)
9281 printf (" DW_CFA_restore_state\n");
9282 rs
= remembered_state
;
9285 remembered_state
= rs
->next
;
9286 fc
->cfa_offset
= rs
->cfa_offset
;
9287 fc
->cfa_reg
= rs
->cfa_reg
;
9289 fc
->cfa_exp
= rs
->cfa_exp
;
9290 if (frame_need_space (fc
, rs
->ncols
- 1) < 0)
9292 warn (_("Invalid column number in saved frame state\n"));
9296 memcpy (fc
->col_type
, rs
->col_type
, rs
->ncols
* sizeof (* rs
->col_type
));
9297 memcpy (fc
->col_offset
, rs
->col_offset
,
9298 rs
->ncols
* sizeof (* rs
->col_offset
));
9299 free (rs
->col_type
);
9300 free (rs
->col_offset
);
9303 else if (do_debug_frames_interp
)
9304 printf ("Mismatched DW_CFA_restore_state\n");
9307 case DW_CFA_def_cfa
:
9308 READ_ULEB (fc
->cfa_reg
, start
, block_end
);
9309 READ_ULEB (fc
->cfa_offset
, start
, block_end
);
9311 if (! do_debug_frames_interp
)
9312 printf (" DW_CFA_def_cfa: %s ofs %d\n",
9313 regname (fc
->cfa_reg
, 0), (int) fc
->cfa_offset
);
9316 case DW_CFA_def_cfa_register
:
9317 READ_ULEB (fc
->cfa_reg
, start
, block_end
);
9319 if (! do_debug_frames_interp
)
9320 printf (" DW_CFA_def_cfa_register: %s\n",
9321 regname (fc
->cfa_reg
, 0));
9324 case DW_CFA_def_cfa_offset
:
9325 READ_ULEB (fc
->cfa_offset
, start
, block_end
);
9326 if (! do_debug_frames_interp
)
9327 printf (" DW_CFA_def_cfa_offset: %d\n", (int) fc
->cfa_offset
);
9331 if (! do_debug_frames_interp
)
9332 printf (" DW_CFA_nop\n");
9335 case DW_CFA_def_cfa_expression
:
9336 READ_ULEB (ul
, start
, block_end
);
9337 if (ul
> (size_t) (block_end
- start
))
9339 printf (_(" DW_CFA_def_cfa_expression: <corrupt len %lu>\n"), ul
);
9342 if (! do_debug_frames_interp
)
9344 printf (" DW_CFA_def_cfa_expression (");
9345 decode_location_expression (start
, eh_addr_size
, 0, -1,
9353 case DW_CFA_expression
:
9354 READ_ULEB (reg
, start
, block_end
);
9355 READ_ULEB (ul
, start
, block_end
);
9356 if (reg
>= (unsigned int) fc
->ncols
)
9357 reg_prefix
= bad_reg
;
9358 /* PR 17512: file: 069-133014-0.006. */
9359 /* PR 17512: file: 98c02eb4. */
9360 if (ul
> (size_t) (block_end
- start
))
9362 printf (_(" DW_CFA_expression: <corrupt len %lu>\n"), ul
);
9365 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9367 printf (" DW_CFA_expression: %s%s (",
9368 reg_prefix
, regname (reg
, 0));
9369 decode_location_expression (start
, eh_addr_size
, 0, -1,
9373 if (*reg_prefix
== '\0')
9374 fc
->col_type
[reg
] = DW_CFA_expression
;
9378 case DW_CFA_val_expression
:
9379 READ_ULEB (reg
, start
, block_end
);
9380 READ_ULEB (ul
, start
, block_end
);
9381 if (reg
>= (unsigned int) fc
->ncols
)
9382 reg_prefix
= bad_reg
;
9383 if (ul
> (size_t) (block_end
- start
))
9385 printf (" DW_CFA_val_expression: <corrupt len %lu>\n", ul
);
9388 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9390 printf (" DW_CFA_val_expression: %s%s (",
9391 reg_prefix
, regname (reg
, 0));
9392 decode_location_expression (start
, eh_addr_size
, 0, -1,
9396 if (*reg_prefix
== '\0')
9397 fc
->col_type
[reg
] = DW_CFA_val_expression
;
9401 case DW_CFA_offset_extended_sf
:
9402 READ_ULEB (reg
, start
, block_end
);
9403 READ_SLEB (l
, start
, block_end
);
9404 if (frame_need_space (fc
, reg
) < 0)
9405 reg_prefix
= bad_reg
;
9406 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9407 printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n",
9408 reg_prefix
, regname (reg
, 0),
9409 (long)(l
* fc
->data_factor
));
9410 if (*reg_prefix
== '\0')
9412 fc
->col_type
[reg
] = DW_CFA_offset
;
9413 fc
->col_offset
[reg
] = l
* fc
->data_factor
;
9417 case DW_CFA_val_offset_sf
:
9418 READ_ULEB (reg
, start
, block_end
);
9419 READ_SLEB (l
, start
, block_end
);
9420 if (frame_need_space (fc
, reg
) < 0)
9421 reg_prefix
= bad_reg
;
9422 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9423 printf (" DW_CFA_val_offset_sf: %s%s is cfa%+ld\n",
9424 reg_prefix
, regname (reg
, 0),
9425 (long)(l
* fc
->data_factor
));
9426 if (*reg_prefix
== '\0')
9428 fc
->col_type
[reg
] = DW_CFA_val_offset
;
9429 fc
->col_offset
[reg
] = l
* fc
->data_factor
;
9433 case DW_CFA_def_cfa_sf
:
9434 READ_ULEB (fc
->cfa_reg
, start
, block_end
);
9435 READ_ULEB (fc
->cfa_offset
, start
, block_end
);
9436 fc
->cfa_offset
= fc
->cfa_offset
* fc
->data_factor
;
9438 if (! do_debug_frames_interp
)
9439 printf (" DW_CFA_def_cfa_sf: %s ofs %d\n",
9440 regname (fc
->cfa_reg
, 0), (int) fc
->cfa_offset
);
9443 case DW_CFA_def_cfa_offset_sf
:
9444 READ_ULEB (fc
->cfa_offset
, start
, block_end
);
9445 fc
->cfa_offset
*= fc
->data_factor
;
9446 if (! do_debug_frames_interp
)
9447 printf (" DW_CFA_def_cfa_offset_sf: %d\n", (int) fc
->cfa_offset
);
9450 case DW_CFA_MIPS_advance_loc8
:
9451 SAFE_BYTE_GET_AND_INC (ofs
, start
, 8, block_end
);
9452 if (do_debug_frames_interp
)
9453 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9455 printf (" DW_CFA_MIPS_advance_loc8: %ld to %s\n",
9456 (unsigned long) (ofs
* fc
->code_factor
),
9457 dwarf_vmatoa_1 (NULL
,
9458 fc
->pc_begin
+ ofs
* fc
->code_factor
,
9460 fc
->pc_begin
+= ofs
* fc
->code_factor
;
9463 case DW_CFA_GNU_window_save
:
9464 if (! do_debug_frames_interp
)
9465 printf (" DW_CFA_GNU_window_save\n");
9468 case DW_CFA_GNU_args_size
:
9469 READ_ULEB (ul
, start
, block_end
);
9470 if (! do_debug_frames_interp
)
9471 printf (" DW_CFA_GNU_args_size: %ld\n", ul
);
9474 case DW_CFA_GNU_negative_offset_extended
:
9475 READ_ULEB (reg
, start
, block_end
);
9476 READ_SLEB (l
, start
, block_end
);
9478 if (frame_need_space (fc
, reg
) < 0)
9479 reg_prefix
= bad_reg
;
9480 if (! do_debug_frames_interp
|| *reg_prefix
!= '\0')
9481 printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n",
9482 reg_prefix
, regname (reg
, 0),
9483 (long)(l
* fc
->data_factor
));
9484 if (*reg_prefix
== '\0')
9486 fc
->col_type
[reg
] = DW_CFA_offset
;
9487 fc
->col_offset
[reg
] = l
* fc
->data_factor
;
9492 if (op
>= DW_CFA_lo_user
&& op
<= DW_CFA_hi_user
)
9493 printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op
);
9495 warn (_("Unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op
);
9500 /* Interpret the CFA - as long as it is not completely full of NOPs. */
9501 if (do_debug_frames_interp
&& ! all_nops
)
9502 frame_display_row (fc
, &need_col_headers
, &max_regs
);
9504 if (fde_fc
.col_type
!= NULL
)
9506 free (fde_fc
.col_type
);
9507 fde_fc
.col_type
= NULL
;
9509 if (fde_fc
.col_offset
!= NULL
)
9511 free (fde_fc
.col_offset
);
9512 fde_fc
.col_offset
= NULL
;
9516 eh_addr_size
= saved_eh_addr_size
;
9521 while (remembered_state
!= NULL
)
9523 rs
= remembered_state
;
9524 remembered_state
= rs
->next
;
9525 free (rs
->col_type
);
9526 free (rs
->col_offset
);
9527 rs
->next
= NULL
; /* Paranoia. */
9531 while (chunks
!= NULL
)
9535 free (rs
->col_type
);
9536 free (rs
->col_offset
);
9537 rs
->next
= NULL
; /* Paranoia. */
9541 while (forward_refs
!= NULL
)
9544 forward_refs
= rs
->next
;
9545 free (rs
->col_type
);
9546 free (rs
->col_offset
);
9547 rs
->next
= NULL
; /* Paranoia. */
9557 display_debug_names (struct dwarf_section
*section
, void *file
)
9559 unsigned char *hdrptr
= section
->start
;
9560 dwarf_vma unit_length
;
9561 unsigned char *unit_start
;
9562 const unsigned char *const section_end
= section
->start
+ section
->size
;
9563 unsigned char *unit_end
;
9565 introduce (section
, false);
9567 load_debug_section_with_follow (str
, file
);
9569 for (; hdrptr
< section_end
; hdrptr
= unit_end
)
9571 unsigned int offset_size
;
9572 uint16_t dwarf_version
, padding
;
9573 uint32_t comp_unit_count
, local_type_unit_count
, foreign_type_unit_count
;
9574 uint64_t bucket_count
, name_count
, abbrev_table_size
;
9575 uint32_t augmentation_string_size
;
9577 bool augmentation_printable
;
9578 const char *augmentation_string
;
9581 unit_start
= hdrptr
;
9583 /* Get and check the length of the block. */
9584 SAFE_BYTE_GET_AND_INC (unit_length
, hdrptr
, 4, section_end
);
9586 if (unit_length
== 0xffffffff)
9588 /* This section is 64-bit DWARF. */
9589 SAFE_BYTE_GET_AND_INC (unit_length
, hdrptr
, 8, section_end
);
9595 if (unit_length
> (size_t) (section_end
- hdrptr
)
9596 || unit_length
< 2 + 2 + 4 * 7)
9599 warn (_("Debug info is corrupted, %s header at %#lx has length %s\n"),
9601 (unsigned long) (unit_start
- section
->start
),
9602 dwarf_vmatoa ("x", unit_length
));
9605 unit_end
= hdrptr
+ unit_length
;
9607 /* Get and check the version number. */
9608 SAFE_BYTE_GET_AND_INC (dwarf_version
, hdrptr
, 2, unit_end
);
9609 printf (_("Version %ld\n"), (long) dwarf_version
);
9611 /* Prior versions did not exist, and future versions may not be
9612 backwards compatible. */
9613 if (dwarf_version
!= 5)
9615 warn (_("Only DWARF version 5 .debug_names "
9616 "is currently supported.\n"));
9620 SAFE_BYTE_GET_AND_INC (padding
, hdrptr
, 2, unit_end
);
9622 warn (_("Padding field of .debug_names must be 0 (found 0x%x)\n"),
9625 SAFE_BYTE_GET_AND_INC (comp_unit_count
, hdrptr
, 4, unit_end
);
9626 if (comp_unit_count
== 0)
9627 warn (_("Compilation unit count must be >= 1 in .debug_names\n"));
9629 SAFE_BYTE_GET_AND_INC (local_type_unit_count
, hdrptr
, 4, unit_end
);
9630 SAFE_BYTE_GET_AND_INC (foreign_type_unit_count
, hdrptr
, 4, unit_end
);
9631 SAFE_BYTE_GET_AND_INC (bucket_count
, hdrptr
, 4, unit_end
);
9632 SAFE_BYTE_GET_AND_INC (name_count
, hdrptr
, 4, unit_end
);
9633 SAFE_BYTE_GET_AND_INC (abbrev_table_size
, hdrptr
, 4, unit_end
);
9635 SAFE_BYTE_GET_AND_INC (augmentation_string_size
, hdrptr
, 4, unit_end
);
9636 if (augmentation_string_size
% 4 != 0)
9638 warn (_("Augmentation string length %u must be rounded up "
9639 "to a multiple of 4 in .debug_names.\n"),
9640 augmentation_string_size
);
9641 augmentation_string_size
+= (-augmentation_string_size
) & 3;
9643 if (augmentation_string_size
> (size_t) (unit_end
- hdrptr
))
9646 printf (_("Augmentation string:"));
9648 augmentation_printable
= true;
9649 augmentation_string
= (const char *) hdrptr
;
9651 for (i
= 0; i
< augmentation_string_size
; i
++)
9655 SAFE_BYTE_GET_AND_INC (uc
, hdrptr
, 1, unit_end
);
9656 printf (" %02x", uc
);
9658 if (uc
!= 0 && !ISPRINT (uc
))
9659 augmentation_printable
= false;
9662 if (augmentation_printable
)
9666 i
< augmentation_string_size
&& augmentation_string
[i
];
9668 putchar (augmentation_string
[i
]);
9673 printf (_("CU table:\n"));
9674 if (_mul_overflow (comp_unit_count
, offset_size
, &total
)
9675 || total
> (size_t) (unit_end
- hdrptr
))
9677 for (i
= 0; i
< comp_unit_count
; i
++)
9681 SAFE_BYTE_GET_AND_INC (cu_offset
, hdrptr
, offset_size
, unit_end
);
9682 printf (_("[%3u] 0x%lx\n"), i
, (unsigned long) cu_offset
);
9686 printf (_("TU table:\n"));
9687 if (_mul_overflow (local_type_unit_count
, offset_size
, &total
)
9688 || total
> (size_t) (unit_end
- hdrptr
))
9690 for (i
= 0; i
< local_type_unit_count
; i
++)
9694 SAFE_BYTE_GET_AND_INC (tu_offset
, hdrptr
, offset_size
, unit_end
);
9695 printf (_("[%3u] 0x%lx\n"), i
, (unsigned long) tu_offset
);
9699 printf (_("Foreign TU table:\n"));
9700 if (_mul_overflow (foreign_type_unit_count
, 8, &total
)
9701 || total
> (size_t) (unit_end
- hdrptr
))
9703 for (i
= 0; i
< foreign_type_unit_count
; i
++)
9707 SAFE_BYTE_GET_AND_INC (signature
, hdrptr
, 8, unit_end
);
9708 printf (_("[%3u] "), i
);
9709 print_dwarf_vma (signature
, 8);
9714 uint64_t xtra
= (bucket_count
* sizeof (uint32_t)
9715 + name_count
* (sizeof (uint32_t) + 2 * offset_size
)
9716 + abbrev_table_size
);
9717 if (xtra
> (size_t) (unit_end
- hdrptr
))
9719 warn (_("Entry pool offset (0x%lx) exceeds unit size 0x%lx "
9720 "for unit 0x%lx in the debug_names\n"),
9722 (long) (unit_end
- unit_start
),
9723 (long) (unit_start
- section
->start
));
9726 const uint32_t *const hash_table_buckets
= (uint32_t *) hdrptr
;
9727 hdrptr
+= bucket_count
* sizeof (uint32_t);
9728 const uint32_t *const hash_table_hashes
= (uint32_t *) hdrptr
;
9729 hdrptr
+= name_count
* sizeof (uint32_t);
9730 unsigned char *const name_table_string_offsets
= hdrptr
;
9731 hdrptr
+= name_count
* offset_size
;
9732 unsigned char *const name_table_entry_offsets
= hdrptr
;
9733 hdrptr
+= name_count
* offset_size
;
9734 unsigned char *const abbrev_table
= hdrptr
;
9735 hdrptr
+= abbrev_table_size
;
9736 const unsigned char *const abbrev_table_end
= hdrptr
;
9737 unsigned char *const entry_pool
= hdrptr
;
9739 size_t buckets_filled
= 0;
9741 for (bucketi
= 0; bucketi
< bucket_count
; bucketi
++)
9743 const uint32_t bucket
= hash_table_buckets
[bucketi
];
9748 printf (ngettext ("Used %zu of %lu bucket.\n",
9749 "Used %zu of %lu buckets.\n",
9751 buckets_filled
, (unsigned long) bucket_count
);
9753 uint32_t hash_prev
= 0;
9754 size_t hash_clash_count
= 0;
9755 size_t longest_clash
= 0;
9756 size_t this_length
= 0;
9758 for (hashi
= 0; hashi
< name_count
; hashi
++)
9760 const uint32_t hash_this
= hash_table_hashes
[hashi
];
9764 if (hash_prev
% bucket_count
== hash_this
% bucket_count
)
9768 longest_clash
= MAX (longest_clash
, this_length
);
9773 hash_prev
= hash_this
;
9775 printf (_("Out of %lu items there are %zu bucket clashes"
9776 " (longest of %zu entries).\n"),
9777 (unsigned long) name_count
, hash_clash_count
, longest_clash
);
9778 assert (name_count
== buckets_filled
+ hash_clash_count
);
9780 struct abbrev_lookup_entry
9782 dwarf_vma abbrev_tag
;
9783 unsigned char *abbrev_lookup_ptr
;
9785 struct abbrev_lookup_entry
*abbrev_lookup
= NULL
;
9786 size_t abbrev_lookup_used
= 0;
9787 size_t abbrev_lookup_allocated
= 0;
9789 unsigned char *abbrevptr
= abbrev_table
;
9792 dwarf_vma abbrev_tag
;
9794 READ_ULEB (abbrev_tag
, abbrevptr
, abbrev_table_end
);
9795 if (abbrev_tag
== 0)
9797 if (abbrev_lookup_used
== abbrev_lookup_allocated
)
9799 abbrev_lookup_allocated
= MAX (0x100,
9800 abbrev_lookup_allocated
* 2);
9801 abbrev_lookup
= xrealloc (abbrev_lookup
,
9802 (abbrev_lookup_allocated
9803 * sizeof (*abbrev_lookup
)));
9805 assert (abbrev_lookup_used
< abbrev_lookup_allocated
);
9806 struct abbrev_lookup_entry
*entry
;
9807 for (entry
= abbrev_lookup
;
9808 entry
< abbrev_lookup
+ abbrev_lookup_used
;
9810 if (entry
->abbrev_tag
== abbrev_tag
)
9812 warn (_("Duplicate abbreviation tag %lu "
9813 "in unit 0x%lx in the debug_names\n"),
9814 (long) abbrev_tag
, (long) (unit_start
- section
->start
));
9817 entry
= &abbrev_lookup
[abbrev_lookup_used
++];
9818 entry
->abbrev_tag
= abbrev_tag
;
9819 entry
->abbrev_lookup_ptr
= abbrevptr
;
9821 /* Skip DWARF tag. */
9822 SKIP_ULEB (abbrevptr
, abbrev_table_end
);
9825 dwarf_vma xindex
, form
;
9827 READ_ULEB (xindex
, abbrevptr
, abbrev_table_end
);
9828 READ_ULEB (form
, abbrevptr
, abbrev_table_end
);
9829 if (xindex
== 0 && form
== 0)
9834 printf (_("\nSymbol table:\n"));
9836 for (namei
= 0; namei
< name_count
; ++namei
)
9838 uint64_t string_offset
, entry_offset
;
9841 p
= name_table_string_offsets
+ namei
* offset_size
;
9842 SAFE_BYTE_GET (string_offset
, p
, offset_size
, unit_end
);
9843 p
= name_table_entry_offsets
+ namei
* offset_size
;
9844 SAFE_BYTE_GET (entry_offset
, p
, offset_size
, unit_end
);
9846 printf ("[%3u] #%08x %s:", namei
, hash_table_hashes
[namei
],
9847 fetch_indirect_string (string_offset
));
9849 unsigned char *entryptr
= entry_pool
+ entry_offset
;
9851 /* We need to scan first whether there is a single or multiple
9852 entries. TAGNO is -2 for the first entry, it is -1 for the
9853 initial tag read of the second entry, then it becomes 0 for the
9854 first entry for real printing etc. */
9856 /* Initialize it due to a false compiler warning. */
9857 dwarf_vma second_abbrev_tag
= -1;
9860 dwarf_vma abbrev_tag
;
9861 dwarf_vma dwarf_tag
;
9862 const struct abbrev_lookup_entry
*entry
;
9864 READ_ULEB (abbrev_tag
, entryptr
, unit_end
);
9867 second_abbrev_tag
= abbrev_tag
;
9869 entryptr
= entry_pool
+ entry_offset
;
9872 if (abbrev_tag
== 0)
9876 (tagno
== 0 && second_abbrev_tag
== 0 ? " " : "\n\t"),
9877 (unsigned long) abbrev_tag
);
9879 for (entry
= abbrev_lookup
;
9880 entry
< abbrev_lookup
+ abbrev_lookup_used
;
9882 if (entry
->abbrev_tag
== abbrev_tag
)
9884 if (entry
>= abbrev_lookup
+ abbrev_lookup_used
)
9886 warn (_("Undefined abbreviation tag %lu "
9887 "in unit 0x%lx in the debug_names\n"),
9889 (long) (unit_start
- section
->start
));
9892 abbrevptr
= entry
->abbrev_lookup_ptr
;
9893 READ_ULEB (dwarf_tag
, abbrevptr
, abbrev_table_end
);
9895 printf (" %s", get_TAG_name (dwarf_tag
));
9898 dwarf_vma xindex
, form
;
9900 READ_ULEB (xindex
, abbrevptr
, abbrev_table_end
);
9901 READ_ULEB (form
, abbrevptr
, abbrev_table_end
);
9902 if (xindex
== 0 && form
== 0)
9906 printf (" %s", get_IDX_name (xindex
));
9907 entryptr
= read_and_display_attr_value (0, form
, 0,
9908 unit_start
, entryptr
, unit_end
,
9910 dwarf_version
, NULL
,
9917 printf (_(" <no entries>"));
9921 free (abbrev_lookup
);
9928 display_debug_links (struct dwarf_section
* section
,
9929 void * file ATTRIBUTE_UNUSED
)
9931 const unsigned char * filename
;
9932 unsigned int filelen
;
9934 introduce (section
, false);
9936 /* The .gnu_debuglink section is formatted as:
9937 (c-string) Filename.
9938 (padding) If needed to reach a 4 byte boundary.
9939 (uint32_t) CRC32 value.
9941 The .gun_debugaltlink section is formatted as:
9942 (c-string) Filename.
9943 (binary) Build-ID. */
9945 filename
= section
->start
;
9946 filelen
= strnlen ((const char *) filename
, section
->size
);
9947 if (filelen
== section
->size
)
9949 warn (_("The debuglink filename is corrupt/missing\n"));
9953 printf (_(" Separate debug info file: %s\n"), filename
);
9955 if (startswith (section
->name
, ".gnu_debuglink"))
9958 unsigned int crc_offset
;
9960 crc_offset
= filelen
+ 1;
9961 crc_offset
= (crc_offset
+ 3) & ~3;
9962 if (crc_offset
+ 4 > section
->size
)
9964 warn (_("CRC offset missing/truncated\n"));
9968 crc32
= byte_get (filename
+ crc_offset
, 4);
9970 printf (_(" CRC value: %#x\n"), crc32
);
9972 if (crc_offset
+ 4 < section
->size
)
9974 warn (_("There are %#lx extraneous bytes at the end of the section\n"),
9975 (long)(section
->size
- (crc_offset
+ 4)));
9979 else /* startswith (section->name, ".gnu_debugaltlink") */
9981 const unsigned char * build_id
= section
->start
+ filelen
+ 1;
9982 bfd_size_type build_id_len
= section
->size
- (filelen
+ 1);
9983 bfd_size_type printed
;
9985 /* FIXME: Should we support smaller build-id notes ? */
9986 if (build_id_len
< 0x14)
9988 warn (_("Build-ID is too short (%#lx bytes)\n"), (long) build_id_len
);
9992 printed
= printf (_(" Build-ID (%#lx bytes):"), (long) build_id_len
);
9993 display_data (printed
, build_id
, build_id_len
);
10002 display_gdb_index (struct dwarf_section
*section
,
10003 void *file ATTRIBUTE_UNUSED
)
10005 unsigned char *start
= section
->start
;
10007 uint32_t cu_list_offset
, tu_list_offset
;
10008 uint32_t address_table_offset
, symbol_table_offset
, constant_pool_offset
;
10009 unsigned int cu_list_elements
, tu_list_elements
;
10010 unsigned int address_table_size
, symbol_table_slots
;
10011 unsigned char *cu_list
, *tu_list
;
10012 unsigned char *address_table
, *symbol_table
, *constant_pool
;
10015 /* The documentation for the format of this file is in gdb/dwarf2read.c. */
10017 introduce (section
, false);
10019 if (section
->size
< 6 * sizeof (uint32_t))
10021 warn (_("Truncated header in the %s section.\n"), section
->name
);
10025 version
= byte_get_little_endian (start
, 4);
10026 printf (_("Version %ld\n"), (long) version
);
10028 /* Prior versions are obsolete, and future versions may not be
10029 backwards compatible. */
10030 if (version
< 3 || version
> 8)
10032 warn (_("Unsupported version %lu.\n"), (unsigned long) version
);
10036 warn (_("The address table data in version 3 may be wrong.\n"));
10038 warn (_("Version 4 does not support case insensitive lookups.\n"));
10040 warn (_("Version 5 does not include inlined functions.\n"));
10042 warn (_("Version 6 does not include symbol attributes.\n"));
10043 /* Version 7 indices generated by Gold have bad type unit references,
10044 PR binutils/15021. But we don't know if the index was generated by
10045 Gold or not, so to avoid worrying users with gdb-generated indices
10046 we say nothing for version 7 here. */
10048 cu_list_offset
= byte_get_little_endian (start
+ 4, 4);
10049 tu_list_offset
= byte_get_little_endian (start
+ 8, 4);
10050 address_table_offset
= byte_get_little_endian (start
+ 12, 4);
10051 symbol_table_offset
= byte_get_little_endian (start
+ 16, 4);
10052 constant_pool_offset
= byte_get_little_endian (start
+ 20, 4);
10054 if (cu_list_offset
> section
->size
10055 || tu_list_offset
> section
->size
10056 || address_table_offset
> section
->size
10057 || symbol_table_offset
> section
->size
10058 || constant_pool_offset
> section
->size
)
10060 warn (_("Corrupt header in the %s section.\n"), section
->name
);
10064 /* PR 17531: file: 418d0a8a. */
10065 if (tu_list_offset
< cu_list_offset
)
10067 warn (_("TU offset (%x) is less than CU offset (%x)\n"),
10068 tu_list_offset
, cu_list_offset
);
10072 cu_list_elements
= (tu_list_offset
- cu_list_offset
) / 8;
10074 if (address_table_offset
< tu_list_offset
)
10076 warn (_("Address table offset (%x) is less than TU offset (%x)\n"),
10077 address_table_offset
, tu_list_offset
);
10081 tu_list_elements
= (address_table_offset
- tu_list_offset
) / 8;
10083 /* PR 17531: file: 18a47d3d. */
10084 if (symbol_table_offset
< address_table_offset
)
10086 warn (_("Symbol table offset (%x) is less then Address table offset (%x)\n"),
10087 symbol_table_offset
, address_table_offset
);
10091 address_table_size
= symbol_table_offset
- address_table_offset
;
10093 if (constant_pool_offset
< symbol_table_offset
)
10095 warn (_("Constant pool offset (%x) is less than symbol table offset (%x)\n"),
10096 constant_pool_offset
, symbol_table_offset
);
10100 symbol_table_slots
= (constant_pool_offset
- symbol_table_offset
) / 8;
10102 cu_list
= start
+ cu_list_offset
;
10103 tu_list
= start
+ tu_list_offset
;
10104 address_table
= start
+ address_table_offset
;
10105 symbol_table
= start
+ symbol_table_offset
;
10106 constant_pool
= start
+ constant_pool_offset
;
10108 if (address_table_offset
+ address_table_size
> section
->size
)
10110 warn (_("Address table extends beyond end of section.\n"));
10114 printf (_("\nCU table:\n"));
10115 for (i
= 0; i
< cu_list_elements
; i
+= 2)
10117 uint64_t cu_offset
= byte_get_little_endian (cu_list
+ i
* 8, 8);
10118 uint64_t cu_length
= byte_get_little_endian (cu_list
+ i
* 8 + 8, 8);
10120 printf (_("[%3u] 0x%lx - 0x%lx\n"), i
/ 2,
10121 (unsigned long) cu_offset
,
10122 (unsigned long) (cu_offset
+ cu_length
- 1));
10125 printf (_("\nTU table:\n"));
10126 for (i
= 0; i
< tu_list_elements
; i
+= 3)
10128 uint64_t tu_offset
= byte_get_little_endian (tu_list
+ i
* 8, 8);
10129 uint64_t type_offset
= byte_get_little_endian (tu_list
+ i
* 8 + 8, 8);
10130 uint64_t signature
= byte_get_little_endian (tu_list
+ i
* 8 + 16, 8);
10132 printf (_("[%3u] 0x%lx 0x%lx "), i
/ 3,
10133 (unsigned long) tu_offset
,
10134 (unsigned long) type_offset
);
10135 print_dwarf_vma (signature
, 8);
10139 printf (_("\nAddress table:\n"));
10140 for (i
= 0; i
< address_table_size
&& i
<= address_table_size
- (2 * 8 + 4);
10143 uint64_t low
= byte_get_little_endian (address_table
+ i
, 8);
10144 uint64_t high
= byte_get_little_endian (address_table
+ i
+ 8, 8);
10145 uint32_t cu_index
= byte_get_little_endian (address_table
+ i
+ 16, 4);
10147 print_dwarf_vma (low
, 8);
10148 print_dwarf_vma (high
, 8);
10149 printf (_("%lu\n"), (unsigned long) cu_index
);
10152 printf (_("\nSymbol table:\n"));
10153 for (i
= 0; i
< symbol_table_slots
; ++i
)
10155 uint32_t name_offset
= byte_get_little_endian (symbol_table
+ i
* 8, 4);
10156 uint32_t cu_vector_offset
= byte_get_little_endian (symbol_table
+ i
* 8 + 4, 4);
10157 uint32_t num_cus
, cu
;
10159 if (name_offset
!= 0
10160 || cu_vector_offset
!= 0)
10164 /* PR 17531: file: 5b7b07ad. */
10165 if (name_offset
>= section
->size
- constant_pool_offset
)
10167 printf (_("[%3u] <corrupt offset: %x>"), i
, name_offset
);
10168 warn (_("Corrupt name offset of 0x%x found for symbol table slot %d\n"),
10172 printf ("[%3u] %.*s:", i
,
10173 (int) (section
->size
- (constant_pool_offset
+ name_offset
)),
10174 constant_pool
+ name_offset
);
10176 if (section
->size
- constant_pool_offset
< 4
10177 || cu_vector_offset
> section
->size
- constant_pool_offset
- 4)
10179 printf (_("<invalid CU vector offset: %x>\n"), cu_vector_offset
);
10180 warn (_("Corrupt CU vector offset of 0x%x found for symbol table slot %d\n"),
10181 cu_vector_offset
, i
);
10185 num_cus
= byte_get_little_endian (constant_pool
+ cu_vector_offset
, 4);
10187 if ((uint64_t) num_cus
* 4 > section
->size
- (constant_pool_offset
10188 + cu_vector_offset
+ 4))
10190 printf ("<invalid number of CUs: %d>\n", num_cus
);
10191 warn (_("Invalid number of CUs (0x%x) for symbol table slot %d\n"),
10199 for (j
= 0; j
< num_cus
; ++j
)
10202 gdb_index_symbol_kind kind
;
10204 cu
= byte_get_little_endian (constant_pool
+ cu_vector_offset
+ 4 + j
* 4, 4);
10205 is_static
= GDB_INDEX_SYMBOL_STATIC_VALUE (cu
);
10206 kind
= GDB_INDEX_SYMBOL_KIND_VALUE (cu
);
10207 cu
= GDB_INDEX_CU_VALUE (cu
);
10208 /* Convert to TU number if it's for a type unit. */
10209 if (cu
>= cu_list_elements
/ 2)
10210 printf ("%cT%lu", num_cus
> 1 ? '\t' : ' ',
10211 (unsigned long) (cu
- cu_list_elements
/ 2));
10213 printf ("%c%lu", num_cus
> 1 ? '\t' : ' ', (unsigned long) cu
);
10215 printf (" [%s, %s]",
10216 is_static
? _("static") : _("global"),
10217 get_gdb_index_symbol_kind_name (kind
));
10229 /* Pre-allocate enough space for the CU/TU sets needed. */
10232 prealloc_cu_tu_list (unsigned int nshndx
)
10234 if (shndx_pool
== NULL
)
10236 shndx_pool_size
= nshndx
;
10237 shndx_pool_used
= 0;
10238 shndx_pool
= (unsigned int *) xcmalloc (shndx_pool_size
,
10239 sizeof (unsigned int));
10243 shndx_pool_size
= shndx_pool_used
+ nshndx
;
10244 shndx_pool
= (unsigned int *) xcrealloc (shndx_pool
, shndx_pool_size
,
10245 sizeof (unsigned int));
10250 add_shndx_to_cu_tu_entry (unsigned int shndx
)
10252 if (shndx_pool_used
>= shndx_pool_size
)
10254 error (_("Internal error: out of space in the shndx pool.\n"));
10257 shndx_pool
[shndx_pool_used
++] = shndx
;
10261 end_cu_tu_entry (void)
10263 if (shndx_pool_used
>= shndx_pool_size
)
10265 error (_("Internal error: out of space in the shndx pool.\n"));
10268 shndx_pool
[shndx_pool_used
++] = 0;
10271 /* Return the short name of a DWARF section given by a DW_SECT enumerator. */
10273 static const char *
10274 get_DW_SECT_short_name (unsigned int dw_sect
)
10276 static char buf
[16];
10282 case DW_SECT_TYPES
:
10284 case DW_SECT_ABBREV
:
10290 case DW_SECT_STR_OFFSETS
:
10292 case DW_SECT_MACINFO
:
10294 case DW_SECT_MACRO
:
10300 snprintf (buf
, sizeof (buf
), "%d", dw_sect
);
10304 /* Process a CU or TU index. If DO_DISPLAY is true, print the contents.
10305 These sections are extensions for Fission.
10306 See http://gcc.gnu.org/wiki/DebugFissionDWP. */
10309 process_cu_tu_index (struct dwarf_section
*section
, int do_display
)
10311 unsigned char *phdr
= section
->start
;
10312 unsigned char *limit
= phdr
+ section
->size
;
10313 unsigned char *phash
;
10314 unsigned char *pindex
;
10315 unsigned char *ppool
;
10316 unsigned int version
;
10317 unsigned int ncols
= 0;
10318 unsigned int nused
;
10319 unsigned int nslots
;
10322 dwarf_vma signature
;
10325 /* PR 17512: file: 002-168123-0.004. */
10328 warn (_("Section %s is empty\n"), section
->name
);
10331 /* PR 17512: file: 002-376-0.004. */
10332 if (section
->size
< 24)
10334 warn (_("Section %s is too small to contain a CU/TU header\n"),
10340 SAFE_BYTE_GET_AND_INC (version
, phash
, 4, limit
);
10342 SAFE_BYTE_GET_AND_INC (ncols
, phash
, 4, limit
);
10343 SAFE_BYTE_GET_AND_INC (nused
, phash
, 4, limit
);
10344 SAFE_BYTE_GET_AND_INC (nslots
, phash
, 4, limit
);
10346 pindex
= phash
+ (size_t) nslots
* 8;
10347 ppool
= pindex
+ (size_t) nslots
* 4;
10351 introduce (section
, false);
10353 printf (_(" Version: %u\n"), version
);
10355 printf (_(" Number of columns: %u\n"), ncols
);
10356 printf (_(" Number of used entries: %u\n"), nused
);
10357 printf (_(" Number of slots: %u\n\n"), nslots
);
10360 /* PR 17531: file: 45d69832. */
10361 if (_mul_overflow ((size_t) nslots
, 12, &total
)
10362 || total
> (size_t) (limit
- phash
))
10364 warn (ngettext ("Section %s is too small for %u slot\n",
10365 "Section %s is too small for %u slots\n",
10367 section
->name
, nslots
);
10374 prealloc_cu_tu_list ((limit
- ppool
) / 4);
10375 for (i
= 0; i
< nslots
; i
++)
10377 unsigned char *shndx_list
;
10378 unsigned int shndx
;
10380 SAFE_BYTE_GET (signature
, phash
, 8, limit
);
10381 if (signature
!= 0)
10383 SAFE_BYTE_GET (j
, pindex
, 4, limit
);
10384 shndx_list
= ppool
+ j
* 4;
10385 /* PR 17531: file: 705e010d. */
10386 if (shndx_list
< ppool
)
10388 warn (_("Section index pool located before start of section\n"));
10393 printf (_(" [%3d] Signature: 0x%s Sections: "),
10394 i
, dwarf_vmatoa ("x", signature
));
10397 if (shndx_list
>= limit
)
10399 warn (_("Section %s too small for shndx pool\n"),
10403 SAFE_BYTE_GET (shndx
, shndx_list
, 4, limit
);
10407 printf (" %d", shndx
);
10409 add_shndx_to_cu_tu_entry (shndx
);
10415 end_cu_tu_entry ();
10421 else if (version
== 2)
10424 unsigned int dw_sect
;
10425 unsigned char *ph
= phash
;
10426 unsigned char *pi
= pindex
;
10427 unsigned char *poffsets
= ppool
+ (size_t) ncols
* 4;
10428 unsigned char *psizes
= poffsets
+ (size_t) nused
* ncols
* 4;
10430 struct cu_tu_set
*this_set
= NULL
;
10432 unsigned char *prow
;
10435 is_tu_index
= strcmp (section
->name
, ".debug_tu_index") == 0;
10437 /* PR 17531: file: 0dd159bf.
10438 Check for integer overflow (can occur when size_t is 32-bit)
10439 with overlarge ncols or nused values. */
10441 || _mul_overflow ((size_t) ncols
, 4, &temp
)
10442 || _mul_overflow ((size_t) nused
+ 1, temp
, &total
)
10443 || total
> (size_t) (limit
- ppool
))
10445 warn (_("Section %s too small for offset and size tables\n"),
10452 printf (_(" Offset table\n"));
10453 printf (" slot %-16s ",
10454 is_tu_index
? _("signature") : _("dwo_id"));
10461 tu_sets
= xcalloc2 (nused
, sizeof (struct cu_tu_set
));
10462 this_set
= tu_sets
;
10467 cu_sets
= xcalloc2 (nused
, sizeof (struct cu_tu_set
));
10468 this_set
= cu_sets
;
10474 for (j
= 0; j
< ncols
; j
++)
10476 unsigned char *p
= ppool
+ j
* 4;
10477 SAFE_BYTE_GET (dw_sect
, p
, 4, limit
);
10478 printf (" %8s", get_DW_SECT_short_name (dw_sect
));
10483 for (i
= 0; i
< nslots
; i
++)
10485 SAFE_BYTE_GET (signature
, ph
, 8, limit
);
10487 SAFE_BYTE_GET (row
, pi
, 4, limit
);
10490 /* PR 17531: file: a05f6ab3. */
10493 warn (_("Row index (%u) is larger than number of used entries (%u)\n"),
10500 size_t num_copy
= sizeof (uint64_t);
10502 memcpy (&this_set
[row
- 1].signature
, ph
, num_copy
);
10505 prow
= poffsets
+ (row
- 1) * ncols
* 4;
10507 printf (_(" [%3d] 0x%s"),
10508 i
, dwarf_vmatoa ("x", signature
));
10509 for (j
= 0; j
< ncols
; j
++)
10511 unsigned char *p
= prow
+ j
* 4;
10512 SAFE_BYTE_GET (val
, p
, 4, limit
);
10514 printf (" %8d", val
);
10518 SAFE_BYTE_GET (dw_sect
, p
, 4, limit
);
10520 /* PR 17531: file: 10796eb3. */
10521 if (dw_sect
>= DW_SECT_MAX
)
10522 warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect
);
10524 this_set
[row
- 1].section_offsets
[dw_sect
] = val
;
10540 printf (_(" Size table\n"));
10541 printf (" slot %-16s ",
10542 is_tu_index
? _("signature") : _("dwo_id"));
10545 for (j
= 0; j
< ncols
; j
++)
10547 unsigned char *p
= ppool
+ j
* 4;
10548 SAFE_BYTE_GET (val
, p
, 4, limit
);
10550 printf (" %8s", get_DW_SECT_short_name (val
));
10556 for (i
= 0; i
< nslots
; i
++)
10558 SAFE_BYTE_GET (signature
, ph
, 8, limit
);
10560 SAFE_BYTE_GET (row
, pi
, 4, limit
);
10563 prow
= psizes
+ (row
- 1) * ncols
* 4;
10566 printf (_(" [%3d] 0x%s"),
10567 i
, dwarf_vmatoa ("x", signature
));
10569 for (j
= 0; j
< ncols
; j
++)
10571 unsigned char *p
= prow
+ j
* 4;
10572 SAFE_BYTE_GET (val
, p
, 4, limit
);
10574 printf (" %8d", val
);
10578 SAFE_BYTE_GET (dw_sect
, p
, 4, limit
);
10579 if (dw_sect
>= DW_SECT_MAX
)
10580 warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect
);
10582 this_set
[row
- 1].section_sizes
[dw_sect
] = val
;
10594 else if (do_display
)
10595 printf (_(" Unsupported version (%d)\n"), version
);
10603 static int cu_tu_indexes_read
= -1; /* Tri-state variable. */
10605 /* Load the CU and TU indexes if present. This will build a list of
10606 section sets that we can use to associate a .debug_info.dwo section
10607 with its associated .debug_abbrev.dwo section in a .dwp file. */
10610 load_cu_tu_indexes (void *file
)
10612 /* If we have already loaded (or tried to load) the CU and TU indexes
10613 then do not bother to repeat the task. */
10614 if (cu_tu_indexes_read
== -1)
10616 cu_tu_indexes_read
= true;
10618 if (load_debug_section_with_follow (dwp_cu_index
, file
))
10619 if (! process_cu_tu_index (&debug_displays
[dwp_cu_index
].section
, 0))
10620 cu_tu_indexes_read
= false;
10622 if (load_debug_section_with_follow (dwp_tu_index
, file
))
10623 if (! process_cu_tu_index (&debug_displays
[dwp_tu_index
].section
, 0))
10624 cu_tu_indexes_read
= false;
10627 return (bool) cu_tu_indexes_read
;
10630 /* Find the set of sections that includes section SHNDX. */
10633 find_cu_tu_set (void *file
, unsigned int shndx
)
10637 if (! load_cu_tu_indexes (file
))
10640 /* Find SHNDX in the shndx pool. */
10641 for (i
= 0; i
< shndx_pool_used
; i
++)
10642 if (shndx_pool
[i
] == shndx
)
10645 if (i
>= shndx_pool_used
)
10648 /* Now backup to find the first entry in the set. */
10649 while (i
> 0 && shndx_pool
[i
- 1] != 0)
10652 return shndx_pool
+ i
;
10655 /* Display a .debug_cu_index or .debug_tu_index section. */
10658 display_cu_index (struct dwarf_section
*section
, void *file ATTRIBUTE_UNUSED
)
10660 return process_cu_tu_index (section
, 1);
10664 display_debug_not_supported (struct dwarf_section
*section
,
10665 void *file ATTRIBUTE_UNUSED
)
10667 printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
10673 /* Like malloc, but takes two parameters like calloc.
10674 Verifies that the first parameter is not too large.
10675 Note: does *not* initialise the allocated memory to zero. */
10678 cmalloc (size_t nmemb
, size_t size
)
10680 /* Check for overflow. */
10681 if (nmemb
>= ~(size_t) 0 / size
)
10684 return xmalloc (nmemb
* size
);
10687 /* Like xmalloc, but takes two parameters like calloc.
10688 Verifies that the first parameter is not too large.
10689 Note: does *not* initialise the allocated memory to zero. */
10692 xcmalloc (size_t nmemb
, size_t size
)
10694 /* Check for overflow. */
10695 if (nmemb
>= ~(size_t) 0 / size
)
10698 _("Attempt to allocate an array with an excessive number of elements: 0x%lx\n"),
10703 return xmalloc (nmemb
* size
);
10706 /* Like xrealloc, but takes three parameters.
10707 Verifies that the second parameter is not too large.
10708 Note: does *not* initialise any new memory to zero. */
10711 xcrealloc (void *ptr
, size_t nmemb
, size_t size
)
10713 /* Check for overflow. */
10714 if (nmemb
>= ~(size_t) 0 / size
)
10716 error (_("Attempt to re-allocate an array with an excessive number of elements: 0x%lx\n"),
10721 return xrealloc (ptr
, nmemb
* size
);
10724 /* Like xcalloc, but verifies that the first parameter is not too large. */
10727 xcalloc2 (size_t nmemb
, size_t size
)
10729 /* Check for overflow. */
10730 if (nmemb
>= ~(size_t) 0 / size
)
10732 error (_("Attempt to allocate a zero'ed array with an excessive number of elements: 0x%lx\n"),
10737 return xcalloc (nmemb
, size
);
10740 static unsigned long
10741 calc_gnu_debuglink_crc32 (unsigned long crc
,
10742 const unsigned char * buf
,
10745 static const unsigned long crc32_table
[256] =
10747 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
10748 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
10749 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
10750 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
10751 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
10752 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
10753 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
10754 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
10755 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
10756 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
10757 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
10758 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
10759 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
10760 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
10761 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
10762 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
10763 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
10764 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
10765 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
10766 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
10767 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
10768 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
10769 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
10770 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
10771 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
10772 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
10773 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
10774 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
10775 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
10776 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
10777 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
10778 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
10779 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
10780 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
10781 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
10782 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
10783 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
10784 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
10785 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
10786 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
10787 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
10788 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
10789 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
10790 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
10791 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
10792 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
10793 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
10794 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
10795 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
10796 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
10797 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
10800 const unsigned char *end
;
10802 crc
= ~crc
& 0xffffffff;
10803 for (end
= buf
+ len
; buf
< end
; ++ buf
)
10804 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
10805 return ~crc
& 0xffffffff;
10808 typedef bool (*check_func_type
) (const char *, void *);
10809 typedef const char *(* parse_func_type
) (struct dwarf_section
*, void *);
10812 check_gnu_debuglink (const char * pathname
, void * crc_pointer
)
10814 static unsigned char buffer
[8 * 1024];
10816 bfd_size_type count
;
10817 unsigned long crc
= 0;
10820 sep_data
= open_debug_file (pathname
);
10821 if (sep_data
== NULL
)
10824 /* Yes - we are opening the file twice... */
10825 f
= fopen (pathname
, "rb");
10828 /* Paranoia: This should never happen. */
10829 close_debug_file (sep_data
);
10830 warn (_("Unable to reopen separate debug info file: %s\n"), pathname
);
10834 while ((count
= fread (buffer
, 1, sizeof (buffer
), f
)) > 0)
10835 crc
= calc_gnu_debuglink_crc32 (crc
, buffer
, count
);
10839 if (crc
!= * (unsigned long *) crc_pointer
)
10841 close_debug_file (sep_data
);
10842 warn (_("Separate debug info file %s found, but CRC does not match - ignoring\n"),
10850 static const char *
10851 parse_gnu_debuglink (struct dwarf_section
* section
, void * data
)
10854 unsigned int crc_offset
;
10855 unsigned long * crc32
= (unsigned long *) data
;
10857 /* The name is first.
10858 The CRC value is stored after the filename, aligned up to 4 bytes. */
10859 name
= (const char *) section
->start
;
10861 crc_offset
= strnlen (name
, section
->size
) + 1;
10862 if (crc_offset
== 1)
10864 crc_offset
= (crc_offset
+ 3) & ~3;
10865 if (crc_offset
+ 4 > section
->size
)
10868 * crc32
= byte_get (section
->start
+ crc_offset
, 4);
10873 check_gnu_debugaltlink (const char * filename
, void * data ATTRIBUTE_UNUSED
)
10875 void * sep_data
= open_debug_file (filename
);
10877 if (sep_data
== NULL
)
10880 /* FIXME: We should now extract the build-id in the separate file
10886 typedef struct build_id_data
10889 const unsigned char * data
;
10892 static const char *
10893 parse_gnu_debugaltlink (struct dwarf_section
* section
, void * data
)
10896 bfd_size_type namelen
;
10897 bfd_size_type id_len
;
10898 Build_id_data
* build_id_data
;
10900 /* The name is first.
10901 The build-id follows immediately, with no padding, up to the section's end. */
10903 name
= (const char *) section
->start
;
10904 namelen
= strnlen (name
, section
->size
) + 1;
10907 if (namelen
>= section
->size
)
10910 id_len
= section
->size
- namelen
;
10914 build_id_data
= (Build_id_data
*) data
;
10915 build_id_data
->len
= id_len
;
10916 build_id_data
->data
= section
->start
+ namelen
;
10922 add_separate_debug_file (const char * filename
, void * handle
)
10924 separate_info
* i
= xmalloc (sizeof * i
);
10926 i
->filename
= filename
;
10927 i
->handle
= handle
;
10928 i
->next
= first_separate_info
;
10929 first_separate_info
= i
;
10932 #if HAVE_LIBDEBUGINFOD
10933 /* Query debuginfod servers for the target debuglink or debugaltlink
10934 file. If successful, store the path of the file in filename and
10935 return TRUE, otherwise return FALSE. */
10938 debuginfod_fetch_separate_debug_info (struct dwarf_section
* section
,
10942 size_t build_id_len
;
10943 unsigned char * build_id
;
10945 if (strcmp (section
->uncompressed_name
, ".gnu_debuglink") == 0)
10947 /* Get the build-id of file. */
10948 build_id
= get_build_id (file
);
10951 else if (strcmp (section
->uncompressed_name
, ".gnu_debugaltlink") == 0)
10953 /* Get the build-id of the debugaltlink file. */
10954 unsigned int filelen
;
10956 filelen
= strnlen ((const char *)section
->start
, section
->size
);
10957 if (filelen
== section
->size
)
10958 /* Corrupt debugaltlink. */
10961 build_id
= section
->start
+ filelen
+ 1;
10962 build_id_len
= section
->size
- (filelen
+ 1);
10964 if (build_id_len
== 0)
10973 debuginfod_client
* client
;
10975 client
= debuginfod_begin ();
10976 if (client
== NULL
)
10979 /* Query debuginfod servers for the target file. If found its path
10980 will be stored in filename. */
10981 fd
= debuginfod_find_debuginfo (client
, build_id
, build_id_len
, filename
);
10982 debuginfod_end (client
);
10984 /* Only free build_id if we allocated space for a hex string
10985 in get_build_id (). */
10986 if (build_id_len
== 0)
10991 /* File successfully retrieved. Close fd since we want to
10992 use open_debug_file () on filename instead. */
11003 load_separate_debug_info (const char * main_filename
,
11004 struct dwarf_section
* xlink
,
11005 parse_func_type parse_func
,
11006 check_func_type check_func
,
11008 void * file ATTRIBUTE_UNUSED
)
11010 const char * separate_filename
;
11011 char * debug_filename
;
11013 size_t canon_dirlen
;
11016 if ((separate_filename
= parse_func (xlink
, func_data
)) == NULL
)
11018 warn (_("Corrupt debuglink section: %s\n"),
11019 xlink
->name
? xlink
->name
: xlink
->uncompressed_name
);
11023 /* Attempt to locate the separate file.
11024 This should duplicate the logic in bfd/opncls.c:find_separate_debug_file(). */
11026 canon_dir
= lrealpath (main_filename
);
11028 for (canon_dirlen
= strlen (canon_dir
); canon_dirlen
> 0; canon_dirlen
--)
11029 if (IS_DIR_SEPARATOR (canon_dir
[canon_dirlen
- 1]))
11031 canon_dir
[canon_dirlen
] = '\0';
11034 #define DEBUGDIR "/lib/debug"
11036 #ifndef EXTRA_DEBUG_ROOT1
11037 #define EXTRA_DEBUG_ROOT1 "/usr/lib/debug"
11039 #ifndef EXTRA_DEBUG_ROOT2
11040 #define EXTRA_DEBUG_ROOT2 "/usr/lib/debug/usr"
11043 debug_filename
= (char *) malloc (strlen (DEBUGDIR
) + 1
11045 + strlen (".debug/")
11046 #ifdef EXTRA_DEBUG_ROOT1
11047 + strlen (EXTRA_DEBUG_ROOT1
)
11049 #ifdef EXTRA_DEBUG_ROOT2
11050 + strlen (EXTRA_DEBUG_ROOT2
)
11052 + strlen (separate_filename
)
11054 if (debug_filename
== NULL
)
11056 warn (_("Out of memory"));
11061 /* First try in the current directory. */
11062 sprintf (debug_filename
, "%s", separate_filename
);
11063 if (check_func (debug_filename
, func_data
))
11066 /* Then try in a subdirectory called .debug. */
11067 sprintf (debug_filename
, ".debug/%s", separate_filename
);
11068 if (check_func (debug_filename
, func_data
))
11071 /* Then try in the same directory as the original file. */
11072 sprintf (debug_filename
, "%s%s", canon_dir
, separate_filename
);
11073 if (check_func (debug_filename
, func_data
))
11076 /* And the .debug subdirectory of that directory. */
11077 sprintf (debug_filename
, "%s.debug/%s", canon_dir
, separate_filename
);
11078 if (check_func (debug_filename
, func_data
))
11081 #ifdef EXTRA_DEBUG_ROOT1
11082 /* Try the first extra debug file root. */
11083 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT1
, separate_filename
);
11084 if (check_func (debug_filename
, func_data
))
11087 /* Try the first extra debug file root. */
11088 sprintf (debug_filename
, "%s/%s/%s", EXTRA_DEBUG_ROOT1
, canon_dir
, separate_filename
);
11089 if (check_func (debug_filename
, func_data
))
11093 #ifdef EXTRA_DEBUG_ROOT2
11094 /* Try the second extra debug file root. */
11095 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT2
, separate_filename
);
11096 if (check_func (debug_filename
, func_data
))
11100 /* Then try in the global debug_filename directory. */
11101 strcpy (debug_filename
, DEBUGDIR
);
11102 dirlen
= strlen (DEBUGDIR
) - 1;
11103 if (dirlen
> 0 && DEBUGDIR
[dirlen
] != '/')
11104 strcat (debug_filename
, "/");
11105 strcat (debug_filename
, (const char *) separate_filename
);
11107 if (check_func (debug_filename
, func_data
))
11110 #if HAVE_LIBDEBUGINFOD
11112 char * tmp_filename
;
11114 if (debuginfod_fetch_separate_debug_info (xlink
,
11118 /* File successfully downloaded from server, replace
11119 debug_filename with the file's path. */
11120 free (debug_filename
);
11121 debug_filename
= tmp_filename
;
11127 if (do_debug_links
)
11129 /* Failed to find the file. */
11130 warn (_("could not find separate debug file '%s'\n"),
11131 separate_filename
);
11132 warn (_("tried: %s\n"), debug_filename
);
11134 #ifdef EXTRA_DEBUG_ROOT2
11135 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT2
,
11136 separate_filename
);
11137 warn (_("tried: %s\n"), debug_filename
);
11140 #ifdef EXTRA_DEBUG_ROOT1
11141 sprintf (debug_filename
, "%s/%s/%s", EXTRA_DEBUG_ROOT1
,
11142 canon_dir
, separate_filename
);
11143 warn (_("tried: %s\n"), debug_filename
);
11145 sprintf (debug_filename
, "%s/%s", EXTRA_DEBUG_ROOT1
,
11146 separate_filename
);
11147 warn (_("tried: %s\n"), debug_filename
);
11150 sprintf (debug_filename
, "%s.debug/%s", canon_dir
,
11151 separate_filename
);
11152 warn (_("tried: %s\n"), debug_filename
);
11154 sprintf (debug_filename
, "%s%s", canon_dir
, separate_filename
);
11155 warn (_("tried: %s\n"), debug_filename
);
11157 sprintf (debug_filename
, ".debug/%s", separate_filename
);
11158 warn (_("tried: %s\n"), debug_filename
);
11160 sprintf (debug_filename
, "%s", separate_filename
);
11161 warn (_("tried: %s\n"), debug_filename
);
11163 #if HAVE_LIBDEBUGINFOD
11165 char *urls
= getenv (DEBUGINFOD_URLS_ENV_VAR
);
11169 warn (_("tried: DEBUGINFOD_URLS=%s\n"), urls
);
11175 free (debug_filename
);
11181 void * debug_handle
;
11183 /* Now open the file.... */
11184 if ((debug_handle
= open_debug_file (debug_filename
)) == NULL
)
11186 warn (_("failed to open separate debug file: %s\n"), debug_filename
);
11187 free (debug_filename
);
11191 /* FIXME: We do not check to see if there are any other separate debug info
11192 files that would also match. */
11194 if (do_debug_links
)
11195 printf (_("\n%s: Found separate debug info file: %s\n"), main_filename
, debug_filename
);
11196 add_separate_debug_file (debug_filename
, debug_handle
);
11198 /* Do not free debug_filename - it might be referenced inside
11199 the structure returned by open_debug_file(). */
11200 return debug_handle
;
11203 /* Attempt to load a separate dwarf object file. */
11206 load_dwo_file (const char * main_filename
, const char * name
, const char * dir
, const char * id ATTRIBUTE_UNUSED
)
11208 char * separate_filename
;
11209 void * separate_handle
;
11211 if (IS_ABSOLUTE_PATH (name
))
11212 separate_filename
= strdup (name
);
11214 /* FIXME: Skip adding / if dwo_dir ends in /. */
11215 separate_filename
= concat (dir
, "/", name
, NULL
);
11216 if (separate_filename
== NULL
)
11218 warn (_("Out of memory allocating dwo filename\n"));
11222 if ((separate_handle
= open_debug_file (separate_filename
)) == NULL
)
11224 warn (_("Unable to load dwo file: %s\n"), separate_filename
);
11225 free (separate_filename
);
11229 /* FIXME: We should check the dwo_id. */
11231 printf (_("%s: Found separate debug object file: %s\n\n"), main_filename
, separate_filename
);
11233 add_separate_debug_file (separate_filename
, separate_handle
);
11234 /* Note - separate_filename will be freed in free_debug_memory(). */
11235 return separate_handle
;
11239 load_debug_sup_file (const char * main_filename
, void * file
)
11241 if (! load_debug_section (debug_sup
, file
))
11242 return; /* No .debug_sup section. */
11244 struct dwarf_section
* section
;
11245 section
= & debug_displays
[debug_sup
].section
;
11246 assert (section
!= NULL
);
11248 if (section
->start
== NULL
|| section
->size
< 5)
11250 warn (_(".debug_sup section is corrupt/empty\n"));
11254 if (section
->start
[2] != 0)
11255 return; /* This is a supplementary file. */
11257 const char * filename
= (const char *) section
->start
+ 3;
11258 if (strnlen (filename
, section
->size
- 3) == section
->size
- 3)
11260 warn (_("filename in .debug_sup section is corrupt\n"));
11264 if (filename
[0] != '/' && strchr (main_filename
, '/'))
11269 new_len
= asprintf (& new_name
, "%.*s/%s",
11270 (int) (strrchr (main_filename
, '/') - main_filename
),
11275 warn (_("unable to construct path for supplementary debug file"));
11280 filename
= new_name
;
11284 /* PR 27796: Make sure that we pass a filename that can be free'd to
11285 add_separate_debug_file(). */
11286 filename
= strdup (filename
);
11287 if (filename
== NULL
)
11289 warn (_("out of memory constructing filename for .debug_sup link\n"));
11294 void * handle
= open_debug_file (filename
);
11295 if (handle
== NULL
)
11297 warn (_("unable to open file '%s' referenced from .debug_sup section\n"), filename
);
11298 free ((void *) filename
);
11302 printf (_("%s: Found supplementary debug file: %s\n\n"), main_filename
, filename
);
11304 /* FIXME: Compare the checksums, if present. */
11305 add_separate_debug_file (filename
, handle
);
11308 /* Load a debuglink section and/or a debugaltlink section, if either are present.
11309 Recursively check the loaded files for more of these sections.
11310 Also follow any links in .debug_sup sections.
11311 FIXME: Should also check for DWO_* entries in the newly loaded files. */
11314 check_for_and_load_links (void * file
, const char * filename
)
11316 void * handle
= NULL
;
11318 if (load_debug_section (gnu_debugaltlink
, file
))
11320 Build_id_data build_id_data
;
11322 handle
= load_separate_debug_info (filename
,
11323 & debug_displays
[gnu_debugaltlink
].section
,
11324 parse_gnu_debugaltlink
,
11325 check_gnu_debugaltlink
,
11330 assert (handle
== first_separate_info
->handle
);
11331 check_for_and_load_links (first_separate_info
->handle
,
11332 first_separate_info
->filename
);
11336 if (load_debug_section (gnu_debuglink
, file
))
11338 unsigned long crc32
;
11340 handle
= load_separate_debug_info (filename
,
11341 & debug_displays
[gnu_debuglink
].section
,
11342 parse_gnu_debuglink
,
11343 check_gnu_debuglink
,
11348 assert (handle
== first_separate_info
->handle
);
11349 check_for_and_load_links (first_separate_info
->handle
,
11350 first_separate_info
->filename
);
11354 load_debug_sup_file (filename
, file
);
11357 /* Load the separate debug info file(s) attached to FILE, if any exist.
11358 Returns TRUE if any were found, FALSE otherwise.
11359 If TRUE is returned then the linked list starting at first_separate_info
11360 will be populated with open file handles. */
11363 load_separate_debug_files (void * file
, const char * filename
)
11365 /* Skip this operation if we are not interested in debug links. */
11366 if (! do_follow_links
&& ! do_debug_links
)
11369 /* See if there are any dwo links. */
11370 if (load_debug_section (str
, file
)
11371 && load_debug_section (abbrev
, file
)
11372 && load_debug_section (info
, file
))
11376 if (process_debug_info (& debug_displays
[info
].section
, file
, abbrev
,
11379 bool introduced
= false;
11381 const char *dir
= NULL
;
11382 const char *id
= NULL
;
11383 const char *name
= NULL
;
11385 for (dwinfo
= first_dwo_info
; dwinfo
!= NULL
; dwinfo
= dwinfo
->next
)
11387 /* Accumulate NAME, DIR and ID fields. */
11388 switch (dwinfo
->type
)
11392 warn (_("Multiple DWO_NAMEs encountered for the same CU\n"));
11393 name
= dwinfo
->value
;
11397 /* There can be multiple DW_AT_comp_dir entries in a CU,
11398 so do not complain. */
11399 dir
= dwinfo
->value
;
11404 warn (_("multiple DWO_IDs encountered for the same CU\n"));
11405 id
= dwinfo
->value
;
11409 error (_("Unexpected DWO INFO type"));
11413 /* If we have reached the end of our list, or we are changing
11414 CUs, then display the information that we have accumulated
11417 && (dwinfo
->next
== NULL
11418 || dwinfo
->next
->cu_offset
!= dwinfo
->cu_offset
))
11420 if (do_debug_links
)
11424 printf (_("The %s section contains link(s) to dwo file(s):\n\n"),
11425 debug_displays
[info
].section
.uncompressed_name
);
11429 printf (_(" Name: %s\n"), name
);
11430 printf (_(" Directory: %s\n"), dir
? dir
: _("<not-found>"));
11432 display_data (printf (_(" ID: ")), (unsigned char *) id
, 8);
11434 printf (_(" ID: <not specified>\n"));
11438 if (do_follow_links
)
11439 load_dwo_file (filename
, name
, dir
, id
);
11441 name
= dir
= id
= NULL
;
11447 if (! do_follow_links
)
11448 /* The other debug links will be displayed by display_debug_links()
11449 so we do not need to do any further processing here. */
11452 /* FIXME: We do not check for the presence of both link sections in the same file. */
11453 /* FIXME: We do not check for the presence of multiple, same-name debuglink sections. */
11454 /* FIXME: We do not check for the presence of a dwo link as well as a debuglink. */
11456 check_for_and_load_links (file
, filename
);
11457 if (first_separate_info
!= NULL
)
11460 do_follow_links
= 0;
11465 free_debug_memory (void)
11469 free_all_abbrevs ();
11471 free (cu_abbrev_map
);
11472 cu_abbrev_map
= NULL
;
11473 next_free_abbrev_map_entry
= 0;
11477 shndx_pool_size
= 0;
11478 shndx_pool_used
= 0;
11486 memset (level_type_signed
, 0, sizeof level_type_signed
);
11487 cu_tu_indexes_read
= -1;
11489 for (i
= 0; i
< max
; i
++)
11490 free_debug_section ((enum dwarf_section_display_enum
) i
);
11492 if (debug_information
!= NULL
)
11494 for (i
= 0; i
< alloc_num_debug_info_entries
; i
++)
11496 if (debug_information
[i
].max_loc_offsets
)
11498 free (debug_information
[i
].loc_offsets
);
11499 free (debug_information
[i
].have_frame_base
);
11501 if (debug_information
[i
].max_range_lists
)
11502 free (debug_information
[i
].range_lists
);
11504 free (debug_information
);
11505 debug_information
= NULL
;
11506 alloc_num_debug_info_entries
= num_debug_info_entries
= 0;
11510 separate_info
* next
;
11512 for (d
= first_separate_info
; d
!= NULL
; d
= next
)
11514 close_debug_file (d
->handle
);
11515 free ((void *) d
->filename
);
11519 first_separate_info
= NULL
;
11525 dwarf_select_sections_by_names (const char *names
)
11529 const char * option
;
11533 debug_dump_long_opts
;
11535 static const debug_dump_long_opts opts_table
[] =
11537 /* Please keep this table alpha- sorted. */
11538 { "Ranges", & do_debug_ranges
, 1 },
11539 { "abbrev", & do_debug_abbrevs
, 1 },
11540 { "addr", & do_debug_addr
, 1 },
11541 { "aranges", & do_debug_aranges
, 1 },
11542 { "cu_index", & do_debug_cu_index
, 1 },
11543 { "decodedline", & do_debug_lines
, FLAG_DEBUG_LINES_DECODED
},
11544 { "follow-links", & do_follow_links
, 1 },
11545 { "frames", & do_debug_frames
, 1 },
11546 { "frames-interp", & do_debug_frames_interp
, 1 },
11547 /* The special .gdb_index section. */
11548 { "gdb_index", & do_gdb_index
, 1 },
11549 { "info", & do_debug_info
, 1 },
11550 { "line", & do_debug_lines
, FLAG_DEBUG_LINES_RAW
}, /* For backwards compatibility. */
11551 { "links", & do_debug_links
, 1 },
11552 { "loc", & do_debug_loc
, 1 },
11553 { "macro", & do_debug_macinfo
, 1 },
11554 { "no-follow-links", & do_follow_links
, 0 },
11555 { "pubnames", & do_debug_pubnames
, 1 },
11556 { "pubtypes", & do_debug_pubtypes
, 1 },
11557 /* This entry is for compatibility
11558 with earlier versions of readelf. */
11559 { "ranges", & do_debug_aranges
, 1 },
11560 { "rawline", & do_debug_lines
, FLAG_DEBUG_LINES_RAW
},
11561 { "str", & do_debug_str
, 1 },
11562 { "str-offsets", & do_debug_str_offsets
, 1 },
11563 /* These trace_* sections are used by Itanium VMS. */
11564 { "trace_abbrev", & do_trace_abbrevs
, 1 },
11565 { "trace_aranges", & do_trace_aranges
, 1 },
11566 { "trace_info", & do_trace_info
, 1 },
11575 const debug_dump_long_opts
* entry
;
11577 for (entry
= opts_table
; entry
->option
; entry
++)
11579 size_t len
= strlen (entry
->option
);
11581 if (strncmp (p
, entry
->option
, len
) == 0
11582 && (p
[len
] == ',' || p
[len
] == '\0'))
11584 * entry
->variable
= entry
->val
;
11586 /* The --debug-dump=frames-interp option also
11587 enables the --debug-dump=frames option. */
11588 if (do_debug_frames_interp
)
11589 do_debug_frames
= 1;
11596 if (entry
->option
== NULL
)
11598 warn (_("Unrecognized debug option '%s'\n"), p
);
11599 p
= strchr (p
, ',');
11610 dwarf_select_sections_by_letters (const char *letters
)
11612 unsigned int lindex
= 0;
11614 while (letters
[lindex
])
11615 switch (letters
[lindex
++])
11617 case 'A': do_debug_addr
= 1; break;
11618 case 'a': do_debug_abbrevs
= 1; break;
11619 case 'c': do_debug_cu_index
= 1; break;
11620 case 'F': do_debug_frames_interp
= 1; /* Fall through. */
11621 case 'f': do_debug_frames
= 1; break;
11622 case 'g': do_gdb_index
= 1; break;
11623 case 'i': do_debug_info
= 1; break;
11624 case 'K': do_follow_links
= 1; break;
11625 case 'N': do_follow_links
= 0; break;
11626 case 'k': do_debug_links
= 1; break;
11627 case 'l': do_debug_lines
|= FLAG_DEBUG_LINES_RAW
; break;
11628 case 'L': do_debug_lines
|= FLAG_DEBUG_LINES_DECODED
; break;
11629 case 'm': do_debug_macinfo
= 1; break;
11630 case 'O': do_debug_str_offsets
= 1; break;
11631 case 'o': do_debug_loc
= 1; break;
11632 case 'p': do_debug_pubnames
= 1; break;
11633 case 'R': do_debug_ranges
= 1; break;
11634 case 'r': do_debug_aranges
= 1; break;
11635 case 's': do_debug_str
= 1; break;
11636 case 'T': do_trace_aranges
= 1; break;
11637 case 't': do_debug_pubtypes
= 1; break;
11638 case 'U': do_trace_info
= 1; break;
11639 case 'u': do_trace_abbrevs
= 1; break;
11642 warn (_("Unrecognized debug option '%s'\n"), letters
);
11648 dwarf_select_sections_all (void)
11651 do_debug_abbrevs
= 1;
11652 do_debug_lines
= FLAG_DEBUG_LINES_RAW
;
11653 do_debug_pubnames
= 1;
11654 do_debug_pubtypes
= 1;
11655 do_debug_aranges
= 1;
11656 do_debug_ranges
= 1;
11657 do_debug_frames
= 1;
11658 do_debug_macinfo
= 1;
11663 do_trace_abbrevs
= 1;
11664 do_trace_aranges
= 1;
11666 do_debug_cu_index
= 1;
11667 do_follow_links
= 1;
11668 do_debug_links
= 1;
11669 do_debug_str_offsets
= 1;
11672 #define NO_ABBREVS NULL, NULL, NULL, 0, 0, 0, NULL, 0
11673 #define ABBREV(N) NULL, NULL, NULL, 0, 0, N, NULL, 0
11675 /* N.B. The order here must match the order in section_display_enum. */
11677 struct dwarf_section_display debug_displays
[] =
11679 { { ".debug_abbrev", ".zdebug_abbrev", NO_ABBREVS
}, display_debug_abbrev
, &do_debug_abbrevs
, false },
11680 { { ".debug_aranges", ".zdebug_aranges", NO_ABBREVS
}, display_debug_aranges
, &do_debug_aranges
, true },
11681 { { ".debug_frame", ".zdebug_frame", NO_ABBREVS
}, display_debug_frames
, &do_debug_frames
, true },
11682 { { ".debug_info", ".zdebug_info", ABBREV (abbrev
)}, display_debug_info
, &do_debug_info
, true },
11683 { { ".debug_line", ".zdebug_line", NO_ABBREVS
}, display_debug_lines
, &do_debug_lines
, true },
11684 { { ".debug_pubnames", ".zdebug_pubnames", NO_ABBREVS
}, display_debug_pubnames
, &do_debug_pubnames
, false },
11685 { { ".debug_gnu_pubnames", ".zdebug_gnu_pubnames", NO_ABBREVS
}, display_debug_gnu_pubnames
, &do_debug_pubnames
, false },
11686 { { ".eh_frame", "", NO_ABBREVS
}, display_debug_frames
, &do_debug_frames
, true },
11687 { { ".debug_macinfo", ".zdebug_macinfo", NO_ABBREVS
}, display_debug_macinfo
, &do_debug_macinfo
, false },
11688 { { ".debug_macro", ".zdebug_macro", NO_ABBREVS
}, display_debug_macro
, &do_debug_macinfo
, true },
11689 { { ".debug_str", ".zdebug_str", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, false },
11690 { { ".debug_line_str", ".zdebug_line_str", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, false },
11691 { { ".debug_loc", ".zdebug_loc", NO_ABBREVS
}, display_debug_loc
, &do_debug_loc
, true },
11692 { { ".debug_loclists", ".zdebug_loclists", NO_ABBREVS
}, display_debug_loc
, &do_debug_loc
, true },
11693 { { ".debug_pubtypes", ".zdebug_pubtypes", NO_ABBREVS
}, display_debug_pubnames
, &do_debug_pubtypes
, false },
11694 { { ".debug_gnu_pubtypes", ".zdebug_gnu_pubtypes", NO_ABBREVS
}, display_debug_gnu_pubnames
, &do_debug_pubtypes
, false },
11695 { { ".debug_ranges", ".zdebug_ranges", NO_ABBREVS
}, display_debug_ranges
, &do_debug_ranges
, true },
11696 { { ".debug_rnglists", ".zdebug_rnglists", NO_ABBREVS
}, display_debug_ranges
, &do_debug_ranges
, true },
11697 { { ".debug_static_func", ".zdebug_static_func", NO_ABBREVS
}, display_debug_not_supported
, NULL
, false },
11698 { { ".debug_static_vars", ".zdebug_static_vars", NO_ABBREVS
}, display_debug_not_supported
, NULL
, false },
11699 { { ".debug_types", ".zdebug_types", ABBREV (abbrev
) }, display_debug_types
, &do_debug_info
, true },
11700 { { ".debug_weaknames", ".zdebug_weaknames", NO_ABBREVS
}, display_debug_not_supported
, NULL
, false },
11701 { { ".gdb_index", "", NO_ABBREVS
}, display_gdb_index
, &do_gdb_index
, false },
11702 { { ".debug_names", "", NO_ABBREVS
}, display_debug_names
, &do_gdb_index
, false },
11703 { { ".trace_info", "", ABBREV (trace_abbrev
) }, display_trace_info
, &do_trace_info
, true },
11704 { { ".trace_abbrev", "", NO_ABBREVS
}, display_debug_abbrev
, &do_trace_abbrevs
, false },
11705 { { ".trace_aranges", "", NO_ABBREVS
}, display_debug_aranges
, &do_trace_aranges
, false },
11706 { { ".debug_info.dwo", ".zdebug_info.dwo", ABBREV (abbrev_dwo
) }, display_debug_info
, &do_debug_info
, true },
11707 { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NO_ABBREVS
}, display_debug_abbrev
, &do_debug_abbrevs
, false },
11708 { { ".debug_types.dwo", ".zdebug_types.dwo", ABBREV (abbrev_dwo
) }, display_debug_types
, &do_debug_info
, true },
11709 { { ".debug_line.dwo", ".zdebug_line.dwo", NO_ABBREVS
}, display_debug_lines
, &do_debug_lines
, true },
11710 { { ".debug_loc.dwo", ".zdebug_loc.dwo", NO_ABBREVS
}, display_debug_loc
, &do_debug_loc
, true },
11711 { { ".debug_macro.dwo", ".zdebug_macro.dwo", NO_ABBREVS
}, display_debug_macro
, &do_debug_macinfo
, true },
11712 { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NO_ABBREVS
}, display_debug_macinfo
, &do_debug_macinfo
, false },
11713 { { ".debug_str.dwo", ".zdebug_str.dwo", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, true },
11714 { { ".debug_str_offsets", ".zdebug_str_offsets", NO_ABBREVS
}, display_debug_str_offsets
, &do_debug_str_offsets
, true },
11715 { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NO_ABBREVS
}, display_debug_str_offsets
, &do_debug_str_offsets
, true },
11716 { { ".debug_addr", ".zdebug_addr", NO_ABBREVS
}, display_debug_addr
, &do_debug_addr
, true },
11717 { { ".debug_cu_index", "", NO_ABBREVS
}, display_cu_index
, &do_debug_cu_index
, false },
11718 { { ".debug_tu_index", "", NO_ABBREVS
}, display_cu_index
, &do_debug_cu_index
, false },
11719 { { ".gnu_debuglink", "", NO_ABBREVS
}, display_debug_links
, &do_debug_links
, false },
11720 { { ".gnu_debugaltlink", "", NO_ABBREVS
}, display_debug_links
, &do_debug_links
, false },
11721 { { ".debug_sup", "", NO_ABBREVS
}, display_debug_sup
, &do_debug_links
, false },
11722 /* Separate debug info files can containt their own .debug_str section,
11723 and this might be in *addition* to a .debug_str section already present
11724 in the main file. Hence we need to have two entries for .debug_str. */
11725 { { ".debug_str", ".zdebug_str", NO_ABBREVS
}, display_debug_str
, &do_debug_str
, false },
11728 /* A static assertion. */
11729 extern int debug_displays_assert
[ARRAY_SIZE (debug_displays
) == max
? 1 : -1];