linux-kernel - Re: 3.9-rc1: hz.bc compilation breakage

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Date:	Thu, 07 Mar 2013 16:55:08 +0100
From:	Maxime Ripard <maxime.ripard@...e-electrons.com>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	linux-kernel@...r.kernel.org,
	linux-kbuild <linux-kbuild@...r.kernel.org>
Subject: Re: 3.9-rc1: hz.bc compilation breakage

Le 07/03/2013 16:06, H. Peter Anvin a écrit :
> On 03/07/2013 02:42 AM, Maxime Ripard wrote:
>>
>> I triggered this issue when switching to 3.9-rc1, and oldconfig runs at
>> that time, and now, running menuconfig doesn't generates it either.
>>
>>> I am not sure what you mean with "clean out-of-tree", however.
>>
>> make O=$(pwd) -C /path/to/linux/source some_configs
>> make
>>
> 
> Can you give the exact set of commands you are running when you see
> this?  I cannot reproduce this no matter what I do, and it doesn't seem
> like it is being a common problem.
> 
> In the example above the first "make" command does indeed not create any
> files in include/config, but they get created immediately on the second
> "make"...

Hmmm, It looks indeed that it can happen only on already existing
directories, I can't reproduce neither with a new build, and not
everyone seems to be impacted by that bug neither, since some colleagues
did the same thing without any trouble (with a completely different
architecture though).

So it's not that bad.

However, when I do:

In my source dir
git checkout v3.9-rc1

In my build dir
ARCH=arm make clean
ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make zImage

And then it breaks.

So I suspect it's something not cleaned properly, or not generated
properly. Here is what's left after the make clean

http://code.bulix.org/eh1e6c-83108?raw

Thanks,
Maxime

-- 
Maxime Ripard, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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