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From: Pavel Machek <pavel@ucw.cz>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>,
	mingo@kernel.org, tglx@linutronix.de,
	linux-kernel@vger.kernel.org, torvalds@linux-foundation.org
Subject: Re: [PATCH 1/2] x86: Force asm-goto
Date: Thu, 22 Mar 2018 13:10:44 +0100	[thread overview]
Message-ID: <20180322121043.GB12518@amd> (raw)
In-Reply-To: <20180320155036.GU4043@hirez.programming.kicks-ass.net>

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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 <peterz@infradead.org> wrote:
> > 
> > > 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.
> > 
> > Given that, how about a patch to Documentation/Changes to reflect the new
> > reality?  It's not in RST yet, so you should be able to go there without
> > ill effect :)
> 
> 
> That thing says:
> 
>   GCC
>   ---
> 
>   The gcc version requirements may vary depending on the type of CPU in your
>   computer. jon
> 
> Which is still entirely accurate. And afaik the 3.2 minimum listed there
> still works for !x86.

Maybe accurate, but pretty user hostile :-(.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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  parent reply	other threads:[~2018-03-22 12:10 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-19 15:41 [PATCH 0/2] x86: Mandate asm-goto support Peter Zijlstra
2018-03-19 15:41 ` [PATCH 1/2] x86: Force asm-goto Peter Zijlstra
2018-03-19 19:57   ` Thomas Gleixner
2018-03-19 20:13     ` Peter Zijlstra
2018-03-20 10:00       ` [tip:x86/build] " tip-bot for Peter Zijlstra
2018-03-27 16:43       ` [PATCH 1/2] " Anders Roxell
2018-03-20 15:45   ` Jonathan Corbet
2018-03-20 15:50     ` Peter Zijlstra
2018-03-20 18:44       ` Jonathan Corbet
2018-03-22 12:10       ` Pavel Machek [this message]
2018-03-19 15:41 ` [PATCH 2/2] x86: Remove FAST_FEATURE_TESTS Peter Zijlstra
2018-03-20 10:01   ` [tip:x86/build] " tip-bot for Peter Zijlstra

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