linux-kernel - Re: [PATCH 1/3] x86/hash: fix build failure with older binutils

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Message-ID: <530B3398.5080308@zytor.com>
Date:	Mon, 24 Feb 2014 03:57:12 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Jan Beulich <JBeulich@...e.com>
CC:	davem@...emloft.net, Ingo Molnar <mingo@...nel.org>,
	tglx@...utronix.de, dborkman@...hat.com, ffusco@...hat.com,
	tgraf@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] x86/hash: fix build failure with older binutils

On 02/23/2014 11:56 PM, Jan Beulich wrote:
>
> 2.17 doesn't have support for it either, yet has support for fxsaveq
> (which you can see in the patch context we check for too). Apart
> from that Documentation/Changes continues to state binutils 2.12
> to be the minimum requirement...
>

Documentation/Changes (maybe) reflects the minimums across all 
architectures, which really has never applied to any single architecture 
for a long time.  x86 requires gcc 3.4 at a minimum, for example, and it 
is not clear that that is sufficient anymore, either.

We don't really have good documentation about what the requirements for 
various specific arches are...

That being said, it sounds like this one is justified.

	-hpa

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