Re: [PATCH 1/3] x86: Separate out x86_regset for 32 and 64 bit

[Kees Cook]

On Tue, Mar 15, 2022 at 09:53:13PM +0000, Edgecombe, Rick P wrote:
> On Tue, 2022-03-15 at 13:41 -0700, Kees Cook wrote:
> > Have you verified there's no binary difference in machine code
> > output?
> 
> There actually was a different in the binaries. I investigated a bit,
> and it seemed at least part of it was due to the line numbers changing
> the WARN_ON()s. But otherwise, I assumed some compiler optimization
> must have been bumped.

Right, you can ignore all the debugging line number changes.
"diffoscope" should help see the difference by section. As long as the
actual object code isn't changing, you should be good.

-- 
Kees Cook