On Tue, Nov 05, 2024 at 05:56:09PM +0100, Uros Bizjak wrote:
> > Maybe never make functions having any volatile asm() "leaf"? Thus
> > require 'volatile' to be present - aka the asm has side-effects that
> > are not fully encoded in the constraints.
>
> I think this would work!
>
> Although this *might* be somehow a big hammer approach, disabling a
I think it will unnecessarily punish lots of code in the wild.
Most asm volatile doesn't do calls in it, or if they do, they have learned
in the past 20 years that on x86_64 there is a red zone and they need to
first subtract red zone size from sp and restore it at the end.
Jakub
