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Date: Wed, 18 Aug 2010 11:06:41 +0200
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai-help] kernel 2.6.32.11 with xenomai 2.5.3 fails to
 boot on ubuntu lucid system
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To: Paul <paul_c@domain.hid>
Cc: xenomai@xenomai.org

Paul wrote:
> On Wednesday 18 August 2010, Gilles Chanteperdrix wrote:
>> Stefan Kisdaroczi wrote:
>>> On 17.08.2010 15:51, Hemal C.Bavishi wrote:
>>>> When I tried to compile it with the latest version of kernel with
>>>> xenomai 2.5.4, I am getting following errors in Xenomai (disable
>>>> CONFIG_SMP, enable CONFIG_X86_UP_APIC and CONFIG_X86_UP_IOAPIC
>>>> (*).)
>>> Just tested, got the same build error with 2.6.34.
>>> If I patch 2.6.34 with prepare-kernel [1] it compiles,
>>> if I use the debian packaged patch generated with prepare-patch [2]
>>> it fails.
>>>
>>> I guess a fix is needed in prepare-patch for 2.6.34, but no time to
>>> look closer now.
>>>
>>> Stefan
>>>
>>> [1] xenomai-2.5.4/scripts/prepare-kernel.sh
>>> [2] xenomai-2.5.4/debian/prepare-patch.sh
>> prepare-kernel.sh has a "--outpatch" option, which seems to be able
>> to generate patches, so, would not it be possible to modify
>> prepare-patch to simply call prepare-kernel.sh with the --outpatch
>> option?
>>
>> This way, we will not have to duplicate into prepare-patch.sh the
>> modifications we make to prepare-kernel.sh.
> 
> The debian/prepare-patch.sh does not require a kernel source tree and 
> generates patches for multiple kernels & arches - It is a fudge, but it 
> works for the most part and does not impose dependencies of multiple 
> kernel source trees on package build systems.

Ok. Understood. The thing is that prepare-patch.sh is broken, so now may
be a good occasion to merge its functionality in prepare-kernel.sh, so
that we do not duplicate the code in these two really non-trivial scripts.

-- 
					    Gilles.