[PATCH] D76482: [lld][ELF] Provide optional hidden symbols for build ID

[Fangrui Song via Phabricator via llvm-commits]

MaskRay added a comment.

In D76482#2182368 <https://reviews.llvm.org/D76482#2182368>, @phosek wrote:

> I have updated the patch to introduce a pair of `__build_id_start` and `__build_id_end` which point at the beginning and the end of the payload so users of these symbols don't need to parse the note headers which simplifies usage.

@mcgrathr's comment https://reviews.llvm.org/D76482#1934097 has not been addressed. I think you can achieve your goal without any new code:

  SECTIONS {
    .note.gnu.build-id : {
      __start_note_gnu_build_id = .;
      *(.note.gnu.build-id)
      __stop_note_gnu_build_id = .;
    }
  } INSERT BEFORE .dynsym;

INSERT BEFORE|AFTER is special. They are not considered an external linker script (ld.bfd -T a.x --verbose).


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https://reviews.llvm.org/D76482