From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753982AbeCVMKt (ORCPT ); Thu, 22 Mar 2018 08:10:49 -0400 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:50941 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752874AbeCVMKp (ORCPT ); Thu, 22 Mar 2018 08:10:45 -0400 Date: Thu, 22 Mar 2018 13:10:44 +0100 From: Pavel Machek To: Peter Zijlstra Cc: Jonathan Corbet , mingo@kernel.org, tglx@linutronix.de, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org Subject: Re: [PATCH 1/2] x86: Force asm-goto Message-ID: <20180322121043.GB12518@amd> References: <20180319154124.337947038@infradead.org> <20180319154717.652679334@infradead.org> <20180320094554.2bc49dea@lwn.net> <20180320155036.GU4043@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="A6N2fC+uXW/VQSAv" Content-Disposition: inline In-Reply-To: <20180320155036.GU4043@hirez.programming.kicks-ass.net> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --A6N2fC+uXW/VQSAv Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue 2018-03-20 16:50:36, Peter Zijlstra wrote: > On Tue, Mar 20, 2018 at 09:45:54AM -0600, Jonathan Corbet wrote: > > On Mon, 19 Mar 2018 16:41:25 +0100 > > Peter Zijlstra wrote: > >=20 > > > A primary prerequisite for this is of course that the compiler > > > supports asm-goto. This effecively lifts the minimum GCC version to > > > build an x86 kernel to gcc-4.5. > >=20 > > Given that, how about a patch to Documentation/Changes to reflect the n= ew > > reality? It's not in RST yet, so you should be able to go there without > > ill effect :) >=20 >=20 > That thing says: >=20 > GCC > --- >=20 > The gcc version requirements may vary depending on the type of CPU in y= our > computer. jon >=20 > Which is still entirely accurate. And afaik the 3.2 minimum listed there > still works for !x86. Maybe accurate, but pretty user hostile :-(. Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --A6N2fC+uXW/VQSAv Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlqznUMACgkQMOfwapXb+vLEPgCfbAGhFnaihiqpafa//lb+oBDS r6oAnA6UD9NcB9hwOR3YI4G2r8ERXEoL =0ynj -----END PGP SIGNATURE----- --A6N2fC+uXW/VQSAv--