[Bug sanitizer/71445] libsanitizer build failure on aarch64-linux-gnu with recent glibc

[carlos at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71445

Carlos O'Donell <carlos at redhat dot com> changed:

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                 CC|                            |carlos at redhat dot com

--- Comment #13 from Carlos O'Donell <carlos at redhat dot com> ---
(In reply to Adhemerval Zanella from comment #12)
> After checking the work required for enable symbol versioning wrapper on
> libsanitizer I am more inclined to go with always ignore the high bits (at
> least for backports). The versioning enablement will require some changes
> and I foresee it will generate some discussion in sanitizer side before a
> settle solution is used. Any suggestions?

+1

That sounds like the most sensible course of action.

The real solution IMO is for the interposer to provide all the various versions
of a function and sanitize them each as needs be. There is no other way around
this and this was a problem that was going to happen some day, we are just
having it happen today because of the changes in glibc.