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Fix PR18374 by making readelf and objdump ignore end-of-list markers in the .debug_loc section if there are relocations against them.

Browse Source 
PR binutils/18374
bin	* dwarf.h (struct dwarf_section): Add reloc_info and num_relocs
	fields.
	(struct dwarf_section_display): Change bitfield to boolean.
	(reloc_at): Add prototype.
	* dwarf.c (display_loc_list): Ignore list terminators if there are
	relocs against them.
	(display_debug_loc): Issue a warning if there are relocs against
	the .debug_loc section.
	(display_displays): Initialise reloc_info and num_relocs fields.
	* objdump.c (load_specific_debug_section): Initialise reloc_info
	and num_relocs fields.
	(reloc_at): New function.
	* readelf.c (is_32bit_abs_reloc): Add IA64's R_IA64_DIS32LSB
	reloc.
	(reloc_at): New function.
	(apply_relocations): Add relocs_return and num_relocs_return
	parameters.  Fill them in with the loaded relocs if non-NULL.
	(dump_section_as_bytes): Update call to apply_relocations.
	(load_specific_debug_section): Initialise reloc_info and
	num_relocs fields.

tests	* binutils-all/pr18374.s: New test file.
	* binutils-all/readelf.exp: Assemble and run the new test.
	* binutils-all/readelf.pr18374: Expected output from readelf.
This commit is contained in:
Nick Clifton 2015-05-15 11:21:38 +01:00
parent 4bc0608a8b
commit d1c4b12b9d
9 changed files with 492 additions and 86 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
binutils/ChangeLog
View File

@ -8,6 +8,30 @@
uncompressed size. Don't check the zlib header.
(load_specific_debug_section): Updated.
2015-05-15 Nick Clifton <nickc@redhat.com>
PR binutils/18374
* dwarf.h (struct dwarf_section): Add reloc_info and num_relocs
fields.
(struct dwarf_section_display): Change bitfield to boolean.
(reloc_at): Add prototype.
* dwarf.c (display_loc_list): Ignore list terminators if there are
relocs against them.
(display_debug_loc): Issue a warning if there are relocs against
the .debug_loc section.
(display_displays): Initialise reloc_info and num_relocs fields.
* objdump.c (load_specific_debug_section): Initialise reloc_info
and num_relocs fields.
(reloc_at): New function.
* readelf.c (is_32bit_abs_reloc): Add IA64's R_IA64_DIS32LSB
reloc.
(reloc_at): New function.
(apply_relocations): Add relocs_return and num_relocs_return
parameters. Fill them in with the loaded relocs if non-NULL.
(dump_section_as_bytes): Update call to apply_relocations.
(load_specific_debug_section): Initialise reloc_info and
num_relocs fields.
2015-05-13 H.J. Lu <hongjiu.lu@intel.com>
* elfedit.c (elf_class): Return ELF_CLASS_BOTH by default.

168
binutils/dwarf.c
View File

@ -4367,6 +4367,8 @@ display_loc_list (struct dwarf_section *section,
while (1)
{
unsigned long off = offset + (start - *start_ptr);
if (start + 2 * pointer_size > section_end)
{
warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
@ -4374,7 +4376,7 @@ display_loc_list (struct dwarf_section *section,
break;
}
printf (" %8.8lx ", offset + (start - *start_ptr));
printf (" %8.8lx ", off);
/* Note: we use sign extension here in order to be sure that we can detect
the -1 escape value. Sign extension into the top 32 bits of a 32-bit
@ -4385,8 +4387,18 @@ display_loc_list (struct dwarf_section *section,
if (begin == 0 && end == 0)
{
printf (_("<End of list>\n"));
break;
/* PR 18374: In a object file we can have a location list that
starts with a begin and end of 0 because there are relocations
that need to be applied to the addresses. Actually applying
the relocations now does not help as they will probably resolve
to 0, since the object file has not been fully linked. Real
end of list markers will not have any relocations against them. */
if (! reloc_at (section, off)
&& ! reloc_at (section, off + pointer_size))
{
printf (_("<End of list>\n"));
break;
}
}
/* Check base address specifiers. */
@ -4607,7 +4619,6 @@ display_debug_loc (struct dwarf_section *section, void *file)
unsigned int first = 0;
unsigned int i;
unsigned int j;
unsigned int k;
int seen_first_offset = 0;
int locs_sorted = 1;
unsigned char *next;
@ -4683,13 +4694,16 @@ display_debug_loc (struct dwarf_section *section, void *file)
if (!locs_sorted)
array = (unsigned int *) xcmalloc (num_loc_list, sizeof (unsigned int));
printf (_("Contents of the %s section:\n\n"), section->name);
printf (_(" Offset Begin End Expression\n"));
if (reloc_at (section, 0))
printf (_(" Warning: This section has relocations - addresses seen here may not be accurate.\n\n"));
printf (_(" Offset Begin End Expression\n"));
seen_first_offset = 0;
for (i = first; i < num_debug_info_entries; i++)
{
unsigned long offset;
unsigned long base_address;
unsigned int k;
int has_frame_base;
if (!locs_sorted)
@ -7561,76 +7575,76 @@ dwarf_select_sections_all (void)
struct dwarf_section_display debug_displays[] =
{
{ { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0, 0, NULL },
display_debug_abbrev, &do_debug_abbrevs, 0 },
{ { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0, 0, NULL },
display_debug_aranges, &do_debug_aranges, 1 },
{ { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0, 0, NULL },
display_debug_frames, &do_debug_frames, 1 },
{ { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0, abbrev, NULL },
display_debug_info, &do_debug_info, 1 },
{ { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0, 0, NULL },
display_debug_lines, &do_debug_lines, 1 },
{ { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0, 0, NULL },
display_debug_pubnames, &do_debug_pubnames, 0 },
{ { ".debug_gnu_pubnames", ".zdebug_gnu_pubnames", NULL, NULL, 0, 0, 0, NULL },
display_debug_gnu_pubnames, &do_debug_pubnames, 0 },
{ { ".eh_frame", "", NULL, NULL, 0, 0, 0, NULL },
display_debug_frames, &do_debug_frames, 1 },
{ { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0, 0, NULL },
display_debug_macinfo, &do_debug_macinfo, 0 },
{ { ".debug_macro", ".zdebug_macro", NULL, NULL, 0, 0, 0, NULL },
display_debug_macro, &do_debug_macinfo, 1 },
{ { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0, 0, NULL },
display_debug_str, &do_debug_str, 0 },
{ { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0, 0, NULL },
display_debug_loc, &do_debug_loc, 1 },
{ { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0, 0, NULL },
display_debug_pubnames, &do_debug_pubtypes, 0 },
{ { ".debug_gnu_pubtypes", ".zdebug_gnu_pubtypes", NULL, NULL, 0, 0, 0, NULL },
display_debug_gnu_pubnames, &do_debug_pubtypes, 0 },
{ { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0, 0, NULL },
display_debug_ranges, &do_debug_ranges, 1 },
{ { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0, 0, NULL },
display_debug_not_supported, NULL, 0 },
{ { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0, 0, NULL },
display_debug_not_supported, NULL, 0 },
{ { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0, abbrev, NULL },
display_debug_types, &do_debug_info, 1 },
{ { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0, 0, NULL },
display_debug_not_supported, NULL, 0 },
{ { ".gdb_index", "", NULL, NULL, 0, 0, 0, NULL },
display_gdb_index, &do_gdb_index, 0 },
{ { ".trace_info", "", NULL, NULL, 0, 0, trace_abbrev, NULL },
display_trace_info, &do_trace_info, 1 },
{ { ".trace_abbrev", "", NULL, NULL, 0, 0, 0, NULL },
display_debug_abbrev, &do_trace_abbrevs, 0 },
{ { ".trace_aranges", "", NULL, NULL, 0, 0, 0, NULL },
display_debug_aranges, &do_trace_aranges, 0 },
{ { ".debug_info.dwo", ".zdebug_info.dwo", NULL, NULL, 0, 0, abbrev_dwo, NULL },
display_debug_info, &do_debug_info, 1 },
{ { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NULL, NULL, 0, 0, 0, NULL },
display_debug_abbrev, &do_debug_abbrevs, 0 },
{ { ".debug_types.dwo", ".zdebug_types.dwo", NULL, NULL, 0, 0, abbrev_dwo, NULL },
display_debug_types, &do_debug_info, 1 },
{ { ".debug_line.dwo", ".zdebug_line.dwo", NULL, NULL, 0, 0, 0, NULL },
display_debug_lines, &do_debug_lines, 1 },
{ { ".debug_loc.dwo", ".zdebug_loc.dwo", NULL, NULL, 0, 0, 0, NULL },
display_debug_loc, &do_debug_loc, 1 },
{ { ".debug_macro.dwo", ".zdebug_macro.dwo", NULL, NULL, 0, 0, 0, NULL },
display_debug_macro, &do_debug_macinfo, 1 },
{ { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NULL, NULL, 0, 0, 0, NULL },
display_debug_macinfo, &do_debug_macinfo, 0 },
{ { ".debug_str.dwo", ".zdebug_str.dwo", NULL, NULL, 0, 0, 0, NULL },
display_debug_str, &do_debug_str, 1 },
{ { ".debug_str_offsets", ".zdebug_str_offsets", NULL, NULL, 0, 0, 0, NULL },
display_debug_str_offsets, NULL, 0 },
{ { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NULL, NULL, 0, 0, 0, NULL },
display_debug_str_offsets, NULL, 0 },
{ { ".debug_addr", ".zdebug_addr", NULL, NULL, 0, 0, 0, NULL },
display_debug_addr, &do_debug_addr, 1 },
{ { ".debug_cu_index", "", NULL, NULL, 0, 0, 0, NULL },
display_cu_index, &do_debug_cu_index, 0 },
{ { ".debug_tu_index", "", NULL, NULL, 0, 0, 0, NULL },
display_cu_index, &do_debug_cu_index, 0 },
{ { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_abbrev, &do_debug_abbrevs, FALSE },
{ { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_aranges, &do_debug_aranges, TRUE },
{ { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_frames, &do_debug_frames, TRUE },
{ { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0, abbrev, NULL, 0, NULL },
display_debug_info, &do_debug_info, TRUE },
{ { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_lines, &do_debug_lines, TRUE },
{ { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_pubnames, &do_debug_pubnames, FALSE },
{ { ".debug_gnu_pubnames", ".zdebug_gnu_pubnames", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_gnu_pubnames, &do_debug_pubnames, FALSE },
{ { ".eh_frame", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_frames, &do_debug_frames, TRUE },
{ { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_macinfo, &do_debug_macinfo, FALSE },
{ { ".debug_macro", ".zdebug_macro", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_macro, &do_debug_macinfo, TRUE },
{ { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_str, &do_debug_str, FALSE },
{ { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_loc, &do_debug_loc, TRUE },
{ { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_pubnames, &do_debug_pubtypes, FALSE },
{ { ".debug_gnu_pubtypes", ".zdebug_gnu_pubtypes", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_gnu_pubnames, &do_debug_pubtypes, FALSE },
{ { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_ranges, &do_debug_ranges, TRUE },
{ { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_not_supported, NULL, FALSE },
{ { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_not_supported, NULL, FALSE },
{ { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0, abbrev, NULL, 0, NULL },
display_debug_types, &do_debug_info, TRUE },
{ { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_not_supported, NULL, FALSE },
{ { ".gdb_index", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_gdb_index, &do_gdb_index, FALSE },
{ { ".trace_info", "", NULL, NULL, 0, 0, trace_abbrev, NULL, 0, NULL },
display_trace_info, &do_trace_info, TRUE },
{ { ".trace_abbrev", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_abbrev, &do_trace_abbrevs, FALSE },
{ { ".trace_aranges", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_aranges, &do_trace_aranges, FALSE },
{ { ".debug_info.dwo", ".zdebug_info.dwo", NULL, NULL, 0, 0, abbrev_dwo, NULL, 0, NULL },
display_debug_info, &do_debug_info, TRUE },
{ { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_abbrev, &do_debug_abbrevs, FALSE },
{ { ".debug_types.dwo", ".zdebug_types.dwo", NULL, NULL, 0, 0, abbrev_dwo, NULL, 0, NULL },
display_debug_types, &do_debug_info, TRUE },
{ { ".debug_line.dwo", ".zdebug_line.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_lines, &do_debug_lines, TRUE },
{ { ".debug_loc.dwo", ".zdebug_loc.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_loc, &do_debug_loc, TRUE },
{ { ".debug_macro.dwo", ".zdebug_macro.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_macro, &do_debug_macinfo, TRUE },
{ { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_macinfo, &do_debug_macinfo, FALSE },
{ { ".debug_str.dwo", ".zdebug_str.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_str, &do_debug_str, TRUE },
{ { ".debug_str_offsets", ".zdebug_str_offsets", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_str_offsets, NULL, FALSE },
{ { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_str_offsets, NULL, FALSE },
{ { ".debug_addr", ".zdebug_addr", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_debug_addr, &do_debug_addr, TRUE },
{ { ".debug_cu_index", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_cu_index, &do_debug_cu_index, FALSE },
{ { ".debug_tu_index", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL },
display_cu_index, &do_debug_cu_index, FALSE },
};

12
binutils/dwarf.h
View File

@ -124,6 +124,11 @@ struct dwarf_section
dwarf_vma address;
dwarf_size_type size;
enum dwarf_section_display_enum abbrev_sec;
/* Used by clients to help them implement the reloc_at callback. */
void * reloc_info;
unsigned long num_relocs;
/* A spare field for random use. */
void *user_data;
};
@ -135,7 +140,7 @@ struct dwarf_section_display
struct dwarf_section section;
int (*display) (struct dwarf_section *, void *);
int *enabled;
unsigned int relocate : 1;
bfd_boolean relocate;
};
extern struct dwarf_section_display debug_displays [];
@ -217,3 +222,8 @@ extern void * xcmalloc (size_t, size_t);
extern void * xcrealloc (void *, size_t, size_t);
extern dwarf_vma read_leb128 (unsigned char *, unsigned int *, bfd_boolean, const unsigned char * const);
/* A callback into the client. Retuns TRUE if there is a
relocation against the given debug section at the given
offset. */
extern bfd_boolean reloc_at (struct dwarf_section *, dwarf_vma);

42
binutils/objdump.c
View File

@ -2278,6 +2278,8 @@ load_specific_debug_section (enum dwarf_section_display_enum debug,
if (section->start != NULL)
return 1;
section->reloc_info = NULL;
section->num_relocs = 0;
section->address = bfd_get_section_vma (abfd, sec);
section->size = bfd_get_section_size (sec);
section->start = NULL;
@ -2308,11 +2310,49 @@ load_specific_debug_section (enum dwarf_section_display_enum debug,
section->name);
return 0;
}
}
long reloc_size;
reloc_size = bfd_get_reloc_upper_bound (abfd, sec);
if (reloc_size > 0)
{
unsigned long reloc_count;
arelent **relocs;
relocs = (arelent **) xmalloc (reloc_size);
reloc_count = bfd_canonicalize_reloc (abfd, sec, relocs, NULL);
if (reloc_count == 0)
free (relocs);
else
{
section->reloc_info = relocs;
section->num_relocs = reloc_count;
}
}
}
return 1;
}
bfd_boolean
reloc_at (struct dwarf_section * dsec, dwarf_vma offset)
{
arelent ** relocs;
arelent * rp;
if (dsec == NULL || dsec->reloc_info == NULL)
return FALSE;
relocs = (arelent **) dsec->reloc_info;
for (; (rp = * relocs) != NULL; ++ relocs)
if (rp->address == offset)
return TRUE;
return FALSE;
}
int
load_debug_section (enum dwarf_section_display_enum debug, void *file)
{

61
binutils/readelf.c
View File

@ -11302,7 +11302,8 @@ is_32bit_abs_reloc (unsigned int reloc_type)
case EM_H8_300H:
return reloc_type == 1; /* R_H8_DIR32. */
case EM_IA_64:
return reloc_type == 0x65; /* R_IA64_SECREL32LSB. */
return reloc_type == 0x65 /* R_IA64_SECREL32LSB. */
|| reloc_type == 0x25; /* R_IA64_DIR32LSB. */
case EM_IP2K_OLD:
case EM_IP2K:
return reloc_type == 2; /* R_IP2K_32. */
@ -11696,19 +11697,51 @@ is_none_reloc (unsigned int reloc_type)
return FALSE;
}
/* Returns TRUE if there is a relocation against
section NAME at OFFSET bytes. */
bfd_boolean
reloc_at (struct dwarf_section * dsec, dwarf_vma offset)
{
Elf_Internal_Rela * relocs;
Elf_Internal_Rela * rp;
if (dsec == NULL || dsec->reloc_info == NULL)
return FALSE;
relocs = (Elf_Internal_Rela *) dsec->reloc_info;
for (rp = relocs; rp < relocs + dsec->num_relocs; ++rp)
if (rp->r_offset == offset)
return TRUE;
return FALSE;
}
/* Apply relocations to a section.
Note: So far support has been added only for those relocations
which can be found in debug sections.
If RELOCS_RETURN is non-NULL then returns in it a pointer to the
loaded relocs. It is then the caller's responsibility to free them.
FIXME: Add support for more relocations ? */
static void
apply_relocations (void * file,
const Elf_Internal_Shdr * section,
unsigned char * start, bfd_size_type size)
apply_relocations (void * file,
const Elf_Internal_Shdr * section,
unsigned char * start,
bfd_size_type size,
void ** relocs_return,
unsigned long * num_relocs_return)
{
Elf_Internal_Shdr * relsec;
unsigned char * end = start + size;
if (relocs_return != NULL)
{
* (Elf_Internal_Rela **) relocs_return = NULL;
* num_relocs_return = 0;
}
if (elf_header.e_type != ET_REL)
return;
@ -11860,7 +11893,15 @@ apply_relocations (void * file,
}
free (symtab);
free (relocs);
if (relocs_return)
{
* (Elf_Internal_Rela **) relocs_return = relocs;
* num_relocs_return = num_relocs;
}
else
free (relocs);
break;
}
}
@ -11999,7 +12040,7 @@ dump_section_as_bytes (Elf_Internal_Shdr * section,
if (relocate)
{
apply_relocations (file, section, start, section->sh_size);
apply_relocations (file, section, start, section->sh_size, NULL, NULL);
}
else
{
@ -12194,7 +12235,13 @@ load_specific_debug_section (enum dwarf_section_display_enum debug,
return 0;
if (debug_displays [debug].relocate)
apply_relocations ((FILE *) file, sec, section->start, section->size);
apply_relocations ((FILE *) file, sec, section->start, section->size,
& section->reloc_info, & section->num_relocs);
else
{
section->reloc_info = NULL;
section->num_relocs = 0;
}
return 1;
}

7
binutils/testsuite/ChangeLog
View File

@ -4,6 +4,13 @@
with "$OBJDUMP -W".
* binutils-all/libdw2-compressedgabi.out: Updated.
2015-05-15 Nick Clifton <nickc@redhat.com>
PR binutils/18374
* binutils-all/pr18374.s: New test file.
* binutils-all/readelf.exp: Assemble and run the new test.
* binutils-all/readelf.pr18374: Expected output from readelf.
2015-05-12 H.J. Lu <hongjiu.lu@intel.com>
* binutils-all/elfedit-1.d: Also skip x86_64-*-nacl*.

234
binutils/testsuite/binutils-all/pr18374.s Normal file
View File

@ -0,0 +1,234 @@
.section .debug_info,"",%progbits
.4byte 0x77
.2byte 0x4
.4byte .Ldebug_abbrev0
.byte 0x4
.uleb128 0x1
.4byte .LASF3
.byte 0xc
.ascii "x.c\000"
.4byte .LASF4
.4byte .Ltext0
.4byte .Letext0
.4byte .Ldebug_line0
.uleb128 0x2
.ascii "foo\000"
.byte 0x1
.byte 0x2
.4byte .LFB0
.4byte .LFE0
.uleb128 0x1
.byte 0x9c
.4byte 0x64
.uleb128 0x3
.ascii "b\000"
.byte 0x1
.byte 0x2
.4byte 0x64
.4byte .LLST0
.uleb128 0x4
.4byte .LASF0
.byte 0x1
.byte 0x2
.4byte 0x66
.4byte .LLST1
.uleb128 0x5
.ascii "ptr\000"
.byte 0x1
.byte 0x4
.4byte 0x6d
.uleb128 0x1
.byte 0x50
.byte 0
.uleb128 0x6
.byte 0x4
.uleb128 0x7
.byte 0x4
.byte 0x7
.4byte .LASF1
.uleb128 0x8
.byte 0x4
.4byte 0x73
.uleb128 0x7
.byte 0x1
.byte 0x8
.4byte .LASF2
.byte 0
.section .debug_abbrev,"",%progbits
.Ldebug_abbrev0:
.uleb128 0x1
.uleb128 0x11
.byte 0x1
.uleb128 0x25
.uleb128 0xe
.uleb128 0x13
.uleb128 0xb
.uleb128 0x3
.uleb128 0x8
.uleb128 0x1b
.uleb128 0xe
.uleb128 0x11
.uleb128 0x1
.uleb128 0x12
.uleb128 0x6
.uleb128 0x10
.uleb128 0x17
.byte 0
.byte 0
.uleb128 0x2
.uleb128 0x2e
.byte 0x1
.uleb128 0x3f
.uleb128 0x19
.uleb128 0x3
.uleb128 0x8
.uleb128 0x3a
.uleb128 0xb
.uleb128 0x3b
.uleb128 0xb
.uleb128 0x27
.uleb128 0x19
.uleb128 0x11
.uleb128 0x1
.uleb128 0x12
.uleb128 0x6
.uleb128 0x40
.uleb128 0x18
.uleb128 0x2117
.uleb128 0x19
.uleb128 0x1
.uleb128 0x13
.byte 0
.byte 0
.uleb128 0x3
.uleb128 0x5
.byte 0
.uleb128 0x3
.uleb128 0x8
.uleb128 0x3a
.uleb128 0xb
.uleb128 0x3b
.uleb128 0xb
.uleb128 0x49
.uleb128 0x13
.uleb128 0x2
.uleb128 0x17
.byte 0
.byte 0
.uleb128 0x4
.uleb128 0x5
.byte 0
.uleb128 0x3
.uleb128 0xe
.uleb128 0x3a
.uleb128 0xb
.uleb128 0x3b
.uleb128 0xb
.uleb128 0x49
.uleb128 0x13
.uleb128 0x2
.uleb128 0x17
.byte 0
.byte 0
.uleb128 0x5
.uleb128 0x34
.byte 0
.uleb128 0x3
.uleb128 0x8
.uleb128 0x3a
.uleb128 0xb
.uleb128 0x3b
.uleb128 0xb
.uleb128 0x49
.uleb128 0x13
.uleb128 0x2
.uleb128 0x18
.byte 0
.byte 0
.uleb128 0x6
.uleb128 0xf
.byte 0
.uleb128 0xb
.uleb128 0xb
.byte 0
.byte 0
.uleb128 0x7
.uleb128 0x24
.byte 0
.uleb128 0xb
.uleb128 0xb
.uleb128 0x3e
.uleb128 0xb
.uleb128 0x3
.uleb128 0xe
.byte 0
.byte 0
.uleb128 0x8
.uleb128 0xf
.byte 0
.uleb128 0xb
.uleb128 0xb
.uleb128 0x49
.uleb128 0x13
.byte 0
.byte 0
.byte 0
.section .debug_loc,"",%progbits
.Ldebug_loc0:
.LLST0:
.4byte .LVL0
.4byte .LVL2
.2byte 0x1
.byte 0x50
.4byte .LVL2
.4byte .LFE0
.2byte 0x4
.byte 0xf3
.uleb128 0x1
.byte 0x50
.byte 0x9f
.4byte 0
.4byte 0
.LLST1:
.4byte .LVL0
.4byte .LVL1
.2byte 0x1
.byte 0x51
.4byte .LVL1
.4byte .LVL2
.2byte 0x3
.byte 0x71
.sleb128 -1
.byte 0x9f
.4byte .LVL2
.4byte .LVL3
.2byte 0xb
.byte 0x70
.sleb128 0
.byte 0x20
.byte 0xf3
.uleb128 0x1
.byte 0x51
.byte 0x22
.byte 0x70
.sleb128 0
.byte 0x22
.byte 0x9f
.4byte .LVL3
.4byte .LFE0
.2byte 0xb
.byte 0x70
.sleb128 0
.byte 0x20
.byte 0x70
.sleb128 0
.byte 0x22
.byte 0xf3
.uleb128 0x1
.byte 0x51
.byte 0x22
.byte 0x9f
.4byte 0
.4byte 0

16
binutils/testsuite/binutils-all/readelf.exp
View File

@ -356,3 +356,19 @@ if ![is_remote host] {
}
readelf_test -n $tempfile readelf.n {}
# PR 18374 - Check that relocations against the .debug_loc section
# do not prevent readelf from displaying all the location lists.
if {![binutils_assemble $srcdir/$subdir/pr18374.s tmpdir/pr18374.o]} then {
perror "could not assemble PR18374 test file"
unresolved "readelf - failed to assemble"
return
}
if ![is_remote host] {
set tempfile tmpdir/pr18374.o
} else {
set tempfile [remote_download host tmpdir/pr18374.o]
}
readelf_test --debug-dump=loc $tempfile readelf.pr18374 {}

14
binutils/testsuite/binutils-all/readelf.pr18374 Normal file
View File

@ -0,0 +1,14 @@
Contents of the .*ebug_loc section:
Warning: This section has relocations - addresses seen here may not be accurate.
Offset Begin End Expression
0+0 0+0 0+0 .*
0000000b 0+0 0+0 .*
00000019 <End of list>
00000021 0+0 0+0 .*
0000002c 0+0 0+0 .*
00000039 0+0 0+0 .*
0000004e 0+0 0+0 .*
00000063 <End of list>
#pass