<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>

On 22 October 2015 12:59:16 +02:00, Josef Söntgen <josef.soentgen@...1...> wrote:

Hello Jack,

* jack@...358... <jack@...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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