[PATCH] Add check-symbol-verion.awk

[Sam James]

"H.J. Lu" <hjl.tools@gmail.com> writes:

> commit 6deadd4eb6ab4f59d116b2d7ad97be0d0848cb7f
> Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
> Date:   Wed Oct 8 10:55:05 2025 -0300
>
> didn't remove sysdeps/m68k/m680x0/fpu/w_fmod_compat.c.  As the result,
> due to a linker bug:
>
> https://sourceware.org/bugzilla/show_bug.cgi?id=34550
>
> there were 2 default versions of fmod in m68k libm:
>
>    996: 0001433c   174 FUNC    WEAK   DEFAULT   12 fmod@@GLIBC_2.0
>    997: 000307d4   214 FUNC    GLOBAL DEFAULT   12 fmod@@GLIBC_2.43
>
> Add check-symbol-verion.awk to verify that versioned symbols only have
> one default version in dynamic symbol table.

Good idea.

Reviewed-by: Sam James <sam@gentoo.org>
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