Messages in this thread |  | | Date | Sat, 4 Apr 2020 09:22:32 -0500 | From | Josh Poimboeuf <> | Subject | Re: [PATCH 4/7] objtool: Add support for return trampoline call |
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On Sat, Apr 04, 2020 at 03:32:18PM +0200, Peter Zijlstra wrote: > 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.
Right, that's what I've been trying to say. The ORC data will be non-deterministic unless we unroll the loop. Or did you mean something else?
-- Josh
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