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ELF: Discard non-alloc sections without section header

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Discard non-alloc sections when section headers are stripped.

bfd/

	PR ld/25617
	* elf.c (_bfd_elf_assign_file_positions_for_non_load): Skip
	non-load sections without section header.
	(_bfd_elf_write_object_contents): Don't set the sh_name field
	without section header.  Write out the .shstrtab section only
	if its sh_offset field isn't -1.

binutils/

	PR ld/25617
	* objcopy.c (is_strip_section_1): Remove non-alloc sections for
	--strip-section-headers.

ld/

	PR ld/25617
	* ldlang.c (lang_discard_section_p): Discard non-alloc sections
	if we are stripping section headers.
This commit is contained in:
H.J. Lu
2023-05-31 12:36:49 -07:00
parent 96cc7918c1
commit 02c1ba6c94
3 changed files with 20 additions and 4 deletions
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7
binutils/objcopy.c
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@@ -1377,6 +1377,11 @@ is_strip_section_1 (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
return true;
}
/* Remove non-alloc sections for --strip-section-headers. */
if (strip_section_headers
&& (bfd_section_flags (sec) & SEC_ALLOC) == 0)
return true;
if ((bfd_section_flags (sec) & SEC_DEBUGGING) != 0)
{
if (strip_symbols == STRIP_DEBUG
@@ -2730,7 +2735,7 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch)
if (strip_section_headers)
{
non_fatal (_("--strip_section_headers is unsupported on `%s'"),
non_fatal (_("--strip-section-headers is unsupported on `%s'"),
bfd_get_archive_filename (ibfd));
return false;
}