[PATCH v2] elf: Don't set its DT_VERSYM entry for unversioned symbol

[H.J. Lu]

On Wed, Oct 29, 2025 at 9:54 AM H.J. Lu <hjl.tools@gmail.com> wrote:
>
> Undefined symbol without version shouldn't have the BASE version in its
> DT_VERSYM entry.  Instead its DT_VERSYM entry should be all zero to
> indicate that the symbol doesn't have a version.
>
> bfd/
>
> PR ld/33577
> * elflink.c (elf_link_output_extsym): Don't set its DT_VERSYM
> entry for unversioned symbol.
>
> ld/
>
> PR ld/33577
> * testsuite/ld-elf/undefined.d: New file.
> * testsuite/ld-elf/undefined.map: Likewise.
> * testsuite/ld-elf/undefined.s: Likewise.
>
> OK for master?
>

Here is the v2 patch to only check undefined symbols.

-- 
H.J.
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