[PATCH] elf: Add glibc version dependency only if needed

[H.J. Lu]

On Tue, Jul 9, 2024, 5:30 PM Andreas Schwab <schwab@suse.de> wrote:

> On Jul 09 2024, H.J. Lu wrote:
>
> > There is no need to add a needed glibc version if the glibc base version
> > includes the needed glibc version.
> >
> >       PR ld/31966
> >       * elflink.c (elf_link_add_glibc_verneed): Add glibc_minor_base.
> >       Skip if the glibc base version includes the needed glibc version.
> >       (_bfd_elf_link_add_glibc_version_dependency): Initialize
> >       glibc_minor_base to INT_MAX and pass it to
> >       elf_link_add_glibc_verneed.
>
> Why was this not handled by a special version symbol like
> GLIBC_ABI_DT_RELR?
>

It is because the relevant change was
done in glibc 2.36 well before mark-plt
change was added to binutils.


> --
> Andreas Schwab, SUSE Labs, schwab@suse.de
> GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
> "And now for something completely different."
>
>
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