Re: [PATCH 4/7] objtool: Add support for return trampoline call

From: Peter Zijlstra
Date: Sat Apr 04 2020 - 09:32:47 EST


On Fri, Apr 03, 2020 at 05:46:20PM +0200, Peter Zijlstra wrote:
> On Fri, Apr 03, 2020 at 10:17:57AM -0500, Josh Poimboeuf wrote:
> > Peter, I think my previous idea for UNWIND_HINT_ADJUST stack_add=8 would
> > work here?
>
> Yes, it would.

Sorry, I have reconsidered. While it will shut up objtool, it will not
'work'. That is, the ORC data generated will not correctly unwind.

I'll try and write a longer email tonight.