> >> Hi Jan,
> >> https://gcc.gnu.org/ml/gcc-patches/2018-01/msg02233.html
> >> Is OK for trunk?
> > I see that using register makes the problem go away and pushing address to
> > stack
> > seemed bit odd anyway. However how does this work on other types of thunk?
> Kernel only uses -mindirect-branch=thunk-extern. I am working on a proposal
> to use -mindirect-branch=thunk-extern in user space to support CET in a single
> binary. So at the end of the day, only
> -mindirect-branch=thunk-extern will be used.
OK, so it is about the fact that we do not really want to support all
-mindirect-branch options in the future? If we don't want to support the
I wonder why we are including them at all. Shall we at least output
when user tries other thunk type with stack unwinding enabled?
(does Kernel use it?)