On Mon, 2018-01-22 at 12:25 -0800, Guenter Roeck wrote:
> 
> It uses "-mindirect-branch=thunk -mindirect-branch-loop=pause
> -fno-jump-tables", though I don't know if that even exists in
> upstream gcc (it is the gcc use for Chrome OS builds). I'll pass
> your feedback to our compiler team.

We moved on from that and the upstream retpoline support in the kernel
won't recognise it.

> Either case, I think it is less than optimal that objtool crashes
> with _any_ object code.

Yeah, I'll give you that one :)