Re: [Xenomai] Building BeagleBone kernel from git

[Charles Steinkuehler <charles@steinkuehler.net>]

On 8/20/2013 1:39 PM, Gilles Chanteperdrix wrote:
> On 08/20/2013 04:58 PM, Charles Steinkuehler wrote:
>> I am currently working with LinuxCNC in a xenomai real-time environment
>> on the BeagleBone:
>>
>> http://bb-lcnc.blogspot.com/p/machinekit_16.html
>>
>> Everything is working well, but the kernel is being built using an
>> out-of-tree patch set obtained by Michael Haberler.
>>
>> I would like to switch to using a more 'official' xenomai build from
>> git, but am unclear how to proceed.
>>
>> Which git repository/branch would be the most appropriate for use in
>> building a xenomai kernel for the BeagleBone / AM335x SoC?
>>
>> Are there any 'gotchas' when using xenomai from git, or do the
>> instructions and procedures for using a released version apply?
> 
> You can use kernel from the I-pipe git at:
> git://git.xenomai.org/ipipe.git branch ipipe-3.8

Thanks!  I wasn't sure if I could use one of the ipipe branches or if I
still needed to use one of the personal branches.

> And xenomai from the xenomai 2.6 git at:
> git://git.xenomai.org/xenomai-2.6.git branch master
> 
> The only difference in the installation procedure when using this kernel
> with this version of Xenomai is that the "prepare-kernel.sh" script will
> not apply the I-pipe patch to the kernel, since the kernel is already
> patched, so the argument to the "--adeos" parameter of prepare-kernel.sh
> is ignored.

OK, stupid question:

I see the ipipe branch has the kernel source, but I need to apply the
patches to a non-stock kernel (ie: a mainline 3.8.13 kernel patched with
the BeagleBone patch set).  Is there a way to get the prepare-kernel.sh
script and/or a patch set to apply to a mainline kernel out of the ipipe
git branch?

Sorry if this is a total newbie question, but I see instructions for
using the prepare-kernel.sh script on a kernel directory, and
instructions for using the ipipe kernel source directly, but not how to
get from one to the other.

-- 
Charles Steinkuehler
charles@steinkuehler.net

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