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Stop readelf from reporting gaps in the gnu build notes if the gap crosses a section boundary.

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* readelf.c (same_section): New function.
	(print_gnu_build_attribute_description): Do not complain about
	gaps that cross a section boundary.
This commit is contained in:
Nick Clifton
2018-07-06 13:52:59 +01:00
parent 2e48456f02
commit d20e98ab59
2 changed files with 28 additions and 2 deletions
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6
binutils/ChangeLog
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@ -1,3 +1,9 @@
2018-07-06 Nick Clifton <nickc@redhat.com>
* readelf.c (same_section): New function.
(print_gnu_build_attribute_description): Do not complain about
gaps that cross a section boundary.
2018-07-05 Nick Clifton <nickc@redhat.com> 2018-07-05 Nick Clifton <nickc@redhat.com>
* po/bg.po: Updated Bulgarian translation. * po/bg.po: Updated Bulgarian translation.

24
binutils/readelf.c
View File

@ -17705,6 +17705,20 @@ get_symbol_for_build_attribute (Filedata * filedata,
return saved_sym; return saved_sym;
} }
/* Returns true iff addr1 and addr2 are in the same section. */
static bfd_boolean
same_section (Filedata * filedata, unsigned long addr1, unsigned long addr2)
{
Elf_Internal_Shdr * a1;
Elf_Internal_Shdr * a2;
a1 = find_section_by_address (filedata, addr1);
a2 = find_section_by_address (filedata, addr2);
return a1 == a2 && a1 != NULL;
}
static bfd_boolean static bfd_boolean
print_gnu_build_attribute_description (Elf_Internal_Note * pnote, print_gnu_build_attribute_description (Elf_Internal_Note * pnote,
Filedata * filedata) Filedata * filedata)
@ -17786,8 +17800,14 @@ print_gnu_build_attribute_description (Elf_Internal_Note * pnote,
if (is_open_attr) if (is_open_attr)
{ {
/* FIXME: Need to properly allow for section alignment. 16 is just the alignment used on x86_64. */ /* FIXME: Need to properly allow for section alignment.
if (global_end > 0 && start > BFD_ALIGN (global_end, 16)) 16 is just the alignment used on x86_64. */
if (global_end > 0
&& start > BFD_ALIGN (global_end, 16)
/* Build notes are not guaranteed to be organised in order of
increasing address, but we should find the all of the notes
for one section in the same place. */
&& same_section (filedata, start, global_end))
warn (_("Gap in build notes detected from %#lx to %#lx\n"), warn (_("Gap in build notes detected from %#lx to %#lx\n"),
global_end + 1, start - 1); global_end + 1, start - 1);