Re: Minimum toolchain requirements?

From: Rob Landley
Date: Thu Dec 27 2012 - 22:39:26 EST


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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