linux-kernel - Re: [PATCH -v5] kbuild: Add extra gcc checks

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Message-ID: <20110309150618.GA2368@aftab>
Date:	Wed, 9 Mar 2011 16:06:18 +0100
From:	Borislav Petkov <bp@...64.org>
To:	Michal Marek <mmarek@...e.cz>
Cc:	Borislav Petkov <bp@...en8.de>, Arnd Bergmann <arnd@...db.de>,
	Sam Ravnborg <sam@...nborg.org>,
	"torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>,
	"linux-kbuild@...r.kernel.org" <linux-kbuild@...r.kernel.org>,
	"bp@...64.org" <bp@...64.org>
Subject: Re: [PATCH -v5] kbuild: Add extra gcc checks

On Wed, Mar 09, 2011 at 09:45:04AM -0500, Michal Marek wrote:
> On Tue, Mar 01, 2011 at 09:35:29AM +0100, Borislav Petkov wrote:
> > Add a 'W=1' Makefile switch which adds additional checking per build
> > object.
> > 
> > The idea behind this option is targeted at developers who, in the
> > process of writing their code, want to do the occasional
> > 
> > make W=1 [target.o]
> > 
> > and let gcc do more extensive code checking for them. Then, they
> > could eyeball the output for valid gcc warnings about various
> > bugs/discrepancies which are not reported during the normal build
> > process.
> > 
> > For more background information and a use case, read through this
> > thread: http://marc.info/?l=kernel-janitors&m=129802065918147&w=2
> > 
> > -v5: Document internal kbuild variable which is introduced by this.
> > Simplify assignment.
> 
> Thanks, applied to kbuild-2.6.git#packaging. If someone comes up with a
> good selection of warnings for W=1 and W=2, we can change it later.

Yeah, I was going to do that but am terribly busy at the moment. I'll do
an initial proposal against your kbuild branch when I get a chance.

Thanks.

-- 
Regards/Gruss,
Boris.

Advanced Micro Devices GmbH
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