Question about hello tutorial

[Stefan Kalkowski]

Hi Ruchith

On Tuesday, 14. September 2010 22:25:22 Ruchith Fernando wrote:
> Hi,
>
> I'm very new to Genode :-).
>

that's fine, you're welcome!

> First I tried the quick start [1] and then I tried to setup the hello
> tutorial with the instructions available with the distribution (10.08)
> [2].
> I ran into an issue when adding the entry to the /bin/config file
> where the given config entry seems to be incorrect in syntax.

You are totally right, we changed the configuration syntax of init in the last 
release to something mightier, which is also a little bit more sophisticated.
The documentation of the hello_world example hasn't been fixed yet, thank you 
for that hint! We will change that immediatly.

Now, if a child wants to announce its services, this has to be stated within 
the start entry of that child. In the hello world example change the start 
entry to:

<start name="hello_server">
  <resource name="RAM" quantum="1M"/>
  <provides><service name="Hello"/></provides>
</start>

regards
stefan

> I added the following :
>
> 	<start name="hello_server">
> 		<resource name="RAM" quantum="1M"/>
> 	</start>
>
> Now when I run ./core I get the following output :
>
> [init -> hello_server]
> Hello::Root_component::Root_component(Genode::Server_entrypoint*,
> Genode::Allocator*): Creating root component.
> [init] virtual bool Child::announce_service(const char*,
> Genode::Root_capability, Genode::Allocator*): hello_server: illegal
> announcement of service "Hello"
>
> Is it possible that I have missed something?
>
> Thanks,
> Ruchith
>
> p.s.
> I did look into the os/src/init/main.cc file (announce_service() )
> that reports the error and I found that after execution of :
>             Genode::Service *s = _child_services->find(service_name,
> &_server); s is null.
>
> 1. http://genode.org/documentation/developer-resources/getting_started
> 2. hello_tutorial/doc/hello_tutorial.txt
>
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-- 
Stefan Kalkowski
Genode Labs

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