Client/Server Application, Noux and the rest

[jack at ...358...]

Hi Josef,

thank you very much!
I got it up and running.
Had a little struggle with the configuration of the ram_fs with the policies.
So I copy my config setup here, perhaps it will help someone.

<start name="ram_fs">
<resource name="RAM" quantum="32M"/>
<provides> <service name="File_system"/> </provides>
<config verbose="yes">
<content>
<dir name="dev"> </dir>
<dir name="tmp"> </dir>
</content>
<policy label="root" root="/" writable="yes"/>
<policy label="own_server -> dev" root="/dev" writable="yes"/>
<policy label="own_server -> tmp" root="/tmp" writable="yes"/>
<policy label="own_client -> dev" root="/dev" writable="yes"/>
<policy label="own_client -> tmp" root="/tmp" writable="yes"/>
</config>
</start>

<start name="own_server">
<resource name="RAM" quantum="32M"/>
<provides>
<service name="First_Service"/>
<service name="Second_Service"/>
</provides>
<config verbose="yes">
<libc stdout="/dev/log" stderr="/dev/log">
<vfs>
<dir name="dev">
<fs label="dev"/>
<jitterentropy name="random"/>
<log/>
</dir>
<dir name="tmp"> <fs label="tmp"/> </dir>
</vfs>
</libc>
</config>
</start>

<start name="own_client">
<resource name="RAM" quantum="16M"/>
<config verbose="yes">
<libc stdout="/dev/log" stderr="/dev/log">
<vfs>
<dir name="dev">
<fs label="dev"/>
<jitterentropy name="random"/>
<log/>
</dir>
<dir name="tmp"> <fs label="tmp"/> </dir>
</vfs>
</libc>
</config>
</start>

Kind regards
Jack

On 22 October 2015 12:59:16 +02:00, Josef Söntgen <josef.soentgen at ...106......> wrote:

> Hello Jack,
> 
> * <jack at ...358...> <<jack at ...358...>> [2015-10-22 12:11:17 +0200]:
> 
> > I am facing a problem with the Server/Client Application.
> > But first a short summary, what happend:
> > With the help from Johannes I am able to use Genode on the ZedBoard.
> > So the hello_tutorial is working fine and after that I am now trying to build my own Server/Client Application.
> > 
> > […]
> > init -> own_server -> own_server: undefined instruction at ip=3983cc
> > init -> own_client -> own_client: undefined instruction at ip=3743cc
> > 
> > My assumption on what is going wrong is the following:
> > The server and the client needs to access the jitterentropy node at /dev/random and needs to write in the /tmp folder.
> > […]
> > 
> Our jitterentropy port on ARM depends on the performance counters. To
> use them on base-hw/ARM you have to explicitly enable user space access
> to the performance counters by setting 'SPECS += perf_counter' in your
> <build>/etc/specs.conf file.
> 
> 
> > I have no initramfs and linux kernel included which could provide the path to the folders.
> > So how do I provide the server and client to access the file/folder?
> > Can I use the server/ram_fs or should I use the Noux Runtime Environment?
> > Or is it something else?
> > 
> The easiest way would be to use the ram_fs component indeed.
> 
> 
> Regards
> Josef
>
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