linux-kernel - Re: Minimum toolchain requirements?

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Message-Id: <1356665727.31232.15@driftwood>
Date:	Thu, 27 Dec 2012 21:35:27 -0600
From:	Rob Landley <rob@...dley.net>
To:	Shaun Ruffell <sruffell@...ium.com>
Cc:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: Minimum toolchain requirements?

On 12/27/2012 02:09:33 PM, Shaun Ruffell wrote:
> Hi Rob,
> 
> On Fri, Dec 14, 2012 at 04:25:10PM -0600, Rob Landley wrote:
> > Although the README and Documentation/Changes both say the kernel
> > builds with gcc 3.2, this is no loner the case. In reality the new
> > 3.7 kernel no longer builds under unpatched gcc 4.2.1 (the last
> > GPLv2 release).
> >
> > Building for i686 breaks with
> > "arch/x86/kernel/cpu/perf_event_p6.c:22: error:
> > p6_hw_cache_event_ids causes a section type conflict" (trivial
> > workaround: patch kernel so CONFIG_BROKEN_RODATA defaults to y).
> 
> I came across your email while searching for a solution to the above
> build error.
> 
> In addition to setting CONFIG_BROKEN_RODATA=y, Jan Beulich sent a
> patch [1] to LKML that also fixes this build problem for me.
> 
> [1] https://lkml.org/lkml/2012/11/23/308
> 
> It doesn't appear to have hit Linus' tree yet though, but with luck
> someone will pick it up before 3.8 final.
> 
> Cheers,
> Shaun

Having it in 3.7.x would be nice too. Copying stable.

Thanks,

Rob--
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