This is my first message, and actually first contact with microkernel world.

I beg your patience in this first time.

I am on the application development & integration deployment side. 

I have been thinking long ago about the possibility of tailoring a software environment with the very basic stuff (code) demanded by specific application domain.

I work with mission safe-critical automation domain, and the applications are basically regarded algorithms / computation / networking. GUI can be splitted ou very basic.

Using Linux as base OS provide what is needed, but together with a bunch of unecessary code / packages that increase the unrealiability of the overall final system.

Now, having learn the important concept of isolating security-critical functions, in order to avoid security breach from the very ground,

I got excited about the idea to bring the applications I work with in such scenario.

And particularly to explore virtualization with the least possible software overhead.

I did a survey on microkernel, microhypervisor. Found L4-based Fiasco-OC and then NOVA.

I was still a little skeptical because of the low level knowledge required.

Genode gave me the light I was looking for.

Specially when I saw the porting of Qt5, which actually I use long time.

With Qt5 integration I am very close to my objective.

However, I still demand to integrate a 3-rd party software, namely, to port OpenDDS to Genode.

I dig into the manual:

and genode site.

I did the manual hello world example, built some environments (NOVA, Fiasco.OC), run the demo.

Everything worked fine with QEMU.

With Qt5 examples I was not successful yet, though.

But before I can move on, I need to integrate an external library.

Specifically, OpenDDS3.6 which relies on ACE-TAO2.2a:

http://download.ociweb.com/TAO-2.2a/ACE+TAO-2.2a_with_latest_patches_NO_makefiles.tar.gz

http://download.ociweb.com/OpenDDS/OpenDDS-3.6.tar.gz

I create a specific repo inside repos, and did the port files.

The make prepare worked with no problems.

But then come the challenging part: 

1) Adapting Makefiles /Config files to Genode specific platform.

     ACE-TAO need a specific config and platform files. 

     There are examples for linux, free and openbsd, vxworks, qnx, vxworks, lynxos.

     From which should I start from?

2) Creation of the patches. How to create the patches? Just with diff -crNb?

3) Building specific tools.

     ACE-TAO and OpenDDS rely on specific tools for IDL files.

     I saw the Qt example with the host_tools.mk approach, but not tested yet.

4) Creation of the run file. What should be a first trial?

Where can I can get better insight of how to do that?

I have digged through the Genode code, particularly the Qt5 porting, but it is quite hard.

Is there any specific guide, or there is no easy way. Is a try and test process?

Thanks for your attention.

Best regards and congratulations for the Genode project,

        Roger