[okl4-developer] Getting started with OKL4 - Problems to compile source

[Geoffrey Lee]

On Wed, Oct 15, 2008 at 11:12:27AM +0200, Lutz Schönemann wrote:
> Sorry to ask this question again but I need some information how to use 
> OKL4. I need to know how to switch between processes running on top the 
> L4 and how to control these (start / restart / stop).  Maybe you know 
> papers documenting this.
>

You can place Linux binaries into the provided root filesystem 
image in linux/rootfs-*.  Then, edit the SConscript to install
it.  Normally for userspace to interact with the rest of the OKL4
system we write a custom driver to let OK Linux call out to
the system to do the specific request - OK Linux applications 
should not become aware that they are running on L4.

it should be relatively easy to add a application to OKL4, take
a look at the trace server for an example of how to add the
application, in projects/iguana/SConstruct.

	-gl

> For more information what I plan to do here is the content of my last  
> mail:
>
>
>> I plan to use the System with 2 applications. The first one should be 
>> inside a OK Linux and provide a little user interface. The job of the 
>> second application is to install / uninstall applications on that 
>> system and to start / stop them. This one should be directly on top the 
>> L4 kernel. I want these 2 applications communicate over IPC or other 
>> ways.
>>
>> So what I am looking for in the first place is how to get startet with 
>> the system it self. How switch between running processes, how to start 
>> new processes and so on to get an idea how the system works.
>> In the next step I need some information how to get started to  
>> implement two simple application sending a "hello world" or something 
>> like that from one to the other app. There seems to be some good 
>> documents on the web but I haven't read all of them because I need to 
>> get familiar with the system.
>>
>> Would be nice if you can point me to some documents describing this  
>> subject for newbies like me ;-)
>>
>> Thanks,
>> Lutz
>
> Thanks again for your help
> Lutz



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