Re: [PATCH 1/5] glibc: Perform rseq(2) registration at C startup and thread creation (v10)

[Florian Weimer]

* Mathieu Desnoyers:

> +  /* Publicize rseq registration ownership.  This must be performed
> +     after rtld re-relocation, before invoking constructors of
> +     preloaded libraries.  */
> +  rseq_init ();

Please add a comment that IFUNC resolvers do not see the initialized
value.  I think this is okay because we currently do not support access
to extern variables in IFUNC resolvers.

>    /* Do any necessary cleanups for the startup OS interface code.
>       We do these now so that no calls are made after rtld re-relocation
>       which might be resolved to different functions than we expect.
>
> It works fine now!

Great.

Thanks,
Florian