Re: Bug#1113864: Replace -fcf-protection=full with -fcf-protection=return

[Florian Weimer <fw@deneb.enyo.de>]

* Guillem Jover:

> But, if the current IBT approach seems undesirable, I'd still be open to
> switch to -fcf-protection=return for now, and revisit how to handle IBT
> later. CCing Florian for potentially more context and opinion.

I'm not aware of any current public activities to enable userspace
IBT.  I haven't see any recent attempt to define a userspace/kernel ABI,
or to test (and port where necessary) userspace.