Re: [PATCH v3 0/7] Isar cross-compilation support

[Jan Kiszka <jan.kiszka@siemens.com>]

Hi Alex,

On 2018-07-19 22:59, Alexander Smirnov wrote:
> Hi Jan,
> 
> [...]
> 
>>> Just an observation, you use here buster but I didn't test it.
>>
>> Yes, but only for the pre-built u-boot package, and only for the Orange
>> Pi. See conf/multiconfig/preferences.orangepi-zero.conf.
> 
> I've found several issue with v3 regarding kernel and modules 
> cross-compilation. I've fixed them and pushed asmirnov/devel branch.
> 
> Now I'm able to cross-build orangepi kernel and example-module for it, 
> huh! :-)

That's good news, and I can confirm that at least the linux-headers 
packages looks good now. It's also clear now that there can be no 
mixed-mode when building kernel modules because this package with its 
host tools is generated for the build host, not the target arch.

However, I'm still stuck on the Python dependency problems. I bet you 
can also reproduce them by declaring the hello package to build-depend 
on "python". Same for "python-pip".

> 
> I've tried to make commits on the top small just to demonstrate my 
> findings.
> 
> Could you please try this branch with your use-case? Unfortunately I 
> wasn't able to quickly run clean jailhoust build, I have fedora as host 
> OS and use debian in chroot. I've tried to run build scripts but docker 
> fails with tons of errors :-(

Can you share your error dump? That would be interesting as the whole 
docker story is about removing the host-side dependency on a particular 
distribution with a particular package set pre-installed, not to speak 
of the sudo config hack.

If you have a Debian 9 build host, you can also leave out the docker 
wrapping, just installing kas via pip and then doing

mkdir -p out
cd out
kas build /path/to/jailhouse-images/kas.yml

Jan

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