Re: [Xenomai-help] Questions porting existing rtai-24.1.12 app to xenomai (PART II)

[Philippe Gerum <rpm@xenomai.org>]

Randy Smith wrote:
> 
> 
> Philippe Gerum wrote:
> 
>>
>> Ok, just to be 100% sure, I've just tried the following on a stock 
>> 2.1.0 grabbed from the mirror:
>>
>> ../somewhere/xenomai-2.1.0/configure --build=i686-linux 
>> --host=ppc-linux --prefix=$HOME/xenomai-install  CC=ppc_82xx-gcc 
>> CXX=ppc_82xx-gcc AR=ppc_82xx-ar LD=ppc_82xx-ld
>>
>> The resulting tree builds and install fine under $HOME/xenomai-install 
>> afterwards. There is no kernel dependency whatsoever since the 
>> user-space support does not even know about the kernel version which 
>> is going to be used in the first place, so we should be able to get 
>> the same user-space setup. Could you try rebuilding in a clean build 
>> tree using equivalent switches at config time, and let me know of the 
>> outcome? TIA,
>>
> Philippe,
> 
> Thanks for your patient help.  I did what you asked and it works fine 
> for the user side.
> 
> The kernel side is what is screwed up.  I am using the ELDK 3.1 from the 
> DENX CD and when I try applying the Adeos patch, it fails in several 
> places.  I ended up applying the patch by hand and I only had a few 
> places where I was scratching my head as to where to apply the changes 
> so that might be what I screwed up.  Is the 
> xenomai-2.1.0/ksrc/arch/powerpc/patches/adeos-ipipe-2.4.25-ppc-denx-1.0-03.patch 
> supposed to apply to the develop tree for ELDK 3.1 instead??  I couldn't 
> make heads or tails of the numbering scheme used on the patch wrt the 
> "denx-1.0-03" part.

Wrt 2.4 kernels, the project provides patches against snapshots of 
Denx's development tree, accessible from 
http://www.denx.de/en/Software/CVS. The date of the snapshot was missing 
in the patch filenames, which introduced a fair amount of confusion; 
this has been fixed in the repository. All 2.4-based Adeos patches for 
ppc have been built against Denx's devel tree as of 2005-11-09 so far. 
The Adeos version is always given by the trailing rev. number of any 
patch filename, e.g. 1.0-04 is the latest Adeos rev. for 2.4/ppc kernels.

For 2.6/ppc kernels, we provide patches against vanilla kernel trees as 
released by kernel.org.

> I'm so close...and I really want to figure this out.
> 

Ok, it's a bit early for Xmas gifts, but anyway, try this patch on 
2.4.25-11 as shipped with the ELDK 3.1:

http://download.gna.org/adeos/patches/v2.4/ppc/adeos-ipipe-2.4.25-11-ppc-denx-1.0-04.patch

-- 

Philippe.