Thanks Norman. I have some more to chew on now. ;)
On Wed, Mar 30, 2016 at 11:14 PM, Norman Feske <norman.feske@...1...
wrote:
Hi Daniel,
Does anyone have a small code sample in the vain of http://genode.org/documentation/architecture/process ?
admittedly, the text on the website is not the most current description. Please better take Section 3.5. "Component creation" of the book as reference. It is more elaborate and more precise.
Have you already had a look at the 'Process' constructor? It contains the steps described in the document in an almost verbatim way:
https://github.com/genodelabs/genode/blob/master/repos/base/src/base/process...
Note that this code is used on all kernels except for Linux. The component creation on Linux is special because we have to bootstrap new components via execve and use the kernel's built-in virtual-memory management instead of the RM service of core. You can find the implementation of the 'Process' class for Linux here:
https://github.com/genodelabs/genode/blob/master/repos/base-linux/src/base/p...
As a heads up warning, we may eventually merge the 'Process' class into the 'Child' class in the near future. Unless you have a pressing need to do the low-level creation steps manually (e.g., if you want to load non-ELF binaries), I recommend you to stay with the 'Child' class.
When it comes to the creation of additional threads within the new component, please follow Alex' advise as this procedure largely depends on the underlying kernel.
Cheers Norman
-- Dr.-Ing. Norman Feske Genode Labs
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