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Date: Tue, 17 Mar 2020 15:49:42 +0100 From: Borislav Petkov <bp@...en8.de> To: Jakub Jelinek <jakub@...hat.com> Cc: Peter Zijlstra <peterz@...radead.org>, Sergei Trofimovich <slyfox@...too.org>, linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, Andy Lutomirski <luto@...nel.org>, x86@...nel.org, Michael Matz <matz@...e.de> Subject: Re: [PATCH] x86: fix early boot crash on gcc-10 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? Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette
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