linux-kernel - Re: new binutils needed for arm in 3.12-rc1

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Date:	Thu, 26 Sep 2013 17:50:19 -0500
From:	Rob Landley <rob@...dley.net>
To:	Måns Rullgård <mans@...sr.com>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	Nicolas Pitre <nico@...xnic.net>,
	Måns Rullgård <mans@...sr.com>,
	Andrew Morton <akpm@...l.org>,
	Trivial patch monkey <trivial@...nel.org>,
	Catalin Marinas <Catalin.Marinas@....com>,
	Will Deacon <will.deacon@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Pavel Machek <pavel@....cz>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: new binutils needed for arm in 3.12-rc1

On 09/25/2013 03:49:07 PM, Måns Rullgård wrote:
> Russell King - ARM Linux <linux@....linux.org.uk> writes:
> 
> > On Wed, Sep 25, 2013 at 10:23:06AM -0500, Rob Landley wrote:
> >> On 09/24/2013 09:07:57 PM, Nicolas Pitre wrote:
> >>> It could be as simple as making gas accept an extra argument for
> >>> instructions like dsb and just ignoring it.
> >>
> >> So you prefer I come up with the reversion patches locally and  
> _not_
> >> send them upstream?
> >
> > This is a silly attitude.  What you're effectively saying is that we
> > are never allowed to use any future ARM instructions in any Linux
> > kernel because that might break your precious assembler.
> >
> > I've got news for you.  We're *not* going to listen to that  
> argument.
> >
> > END OF DISCUSSION (everything else is just a waste of time.)

Who am I to argue with capital letters?

> I fully agree.

Actually, I thought this was an armv5l regression. (My objection was to  
requiring a newer toolchain for architectures that built fine under the  
old one. My attention was attracted by the proposed patch to  
Documentation/changes with a global updated for required binutils  
version.)

I've since had a chance to confirm the armv5 build break I saw was just  
normal mid-rc1 noise (since fixed) and this set of patches just applies  
to armv7, which already required a newer binutils, so objection  
withdrawn.

Rob--
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