Re: [PATCH] x86: fix early boot crash on gcc-10

[Borislav Petkov]

On Tue, Mar 17, 2020 at 03:49:42PM +0100, Borislav Petkov wrote:
> On Tue, Mar 17, 2020 at 03:39:14PM +0100, Jakub Jelinek wrote:
> > That is because the option is called -fno-stack-protector, so one needs to
> > use __attribute__((optimize("no-stack-protector")))
> 
> Ha, that works even! :-)
> 
> And my guest boots.
> 
> I guess we can do that then. Looks like the optimal solution to me.
> 
> Also, I'm assuming older gccs will simply ignore unknown optimize
> options?

Sergei,

wanna send v2 where you add the function attribute to start_secondary()
only instead?

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette