FreeChainXenon/binutils-gdb
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objcopy --only-keep-debug

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From: Peilin Ye <peilin.ye@bytedance.com>
objcopy's --only-keep-debug option has been broken for ELF files since
commit 8c803a2dd7.

  1. binutils/objcopy.c:setup_section() marks non-debug sections as
     SHT_NOBITS, then calls bfd_copy_private_section_data();
  2. If ISEC and OSEC share the same section flags,
     bfd/elf.c:_bfd_elf_init_private_section_data() restores OSEC's
     section type back to ISEC's section type, effectively undoing
     "make_nobits".

	* objcopy.c (setup_section): Act on make_nobits after calling
	bfd_copy_private_section_data.
This commit is contained in:
Alan Modra 2022-01-28 23:08:27 +10:30
parent 5800c9abd0
commit 7c4643efe7
1 changed files with 3 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

6
binutils/objcopy.c
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@ -4085,9 +4085,6 @@ setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
goto loser;
}
if (make_nobits)
elf_section_type (osection) = SHT_NOBITS;
size = bfd_section_size (isection);
size = bfd_convert_section_size (ibfd, isection, obfd, size);
if (copy_byte >= 0)
@ -4181,6 +4178,9 @@ setup_section (bfd *ibfd, sec_ptr isection, void *obfdarg)
goto loser;
}
if (make_nobits)
elf_section_type (osection) = SHT_NOBITS;
/* All went well. */
return;