libffi libnettle transitions request

[Dimitri John Ledkov]

On Wed, 1 Jul 2020 at 01:31, Steve Langasek <steve.langasek at ubuntu.com> wrote:
>
> On Tue, Jun 30, 2020 at 05:28:17PM -0700, Steve Langasek wrote:
> > On Mon, Jun 29, 2020 at 10:20:14AM +0100, Dimitri John Ledkov wrote:
> > > To enable control flow protection (Intel CET) we need to kick of ABI
> > > transition for libffi and libnettle, because trampolines / shadow
> > > stack changes there change abi along with other changes that happened.
>
> > > libffi transition means rebuild of ruby python php haskell
> > > llvm-toolchains guile....
>
> > > I guess we should have opened with libffi transition, but oh well.
>
> > > Is it ok to proceed with libffi transition? It will be disruptive, due
> > > to rebuilds triggering autopkgtests of all languages with bindings
> > > effectively.
>
> > And there's already a libnettle transition ongoing in -proposed.  Is that
> > this one, or is it an unrelated one we should dump?
>
> Well, the nettle transition is entangled with the haskell transition, so
> maybe not.

The current libnettle transition has CET enabled, which i got going
anyway. It looked small.

-- 
Regards,

Dimitri.