layer priorities?

layer priorities?

[Steffen Sledz]

Just a few short questions about the layer priorities. May be there is an faq answering them, but i could not find it.

What is the policy assigning a priority to a layer?

Do multiple layers with the same priority are allowed? How is this handled?

Would it make sense to add an *Layer prio* column to <http://www.openembedded.org/wiki/LayerIndex>?

Steffen

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Re: layer priorities?

[Phil Blundell]

On Thu, 2011-12-01 at 13:17 +0100, Steffen Sledz wrote:
> Just a few short questions about the layer priorities. May be there is an faq answering them, but i could not find it.
> 
> What is the policy assigning a priority to a layer?
> 
> Do multiple layers with the same priority are allowed? How is this handled?
> 
> Would it make sense to add an *Layer prio* column to <http://www.openembedded.org/wiki/LayerIndex>?

We had a bit of discussion around this a few months ago.  See the
longish thread at:

http://lists.linuxtogo.org/pipermail/openembedded-core/2011-August/007387.html

My view remains that the right place to be setting the priority is in
bblayers.conf rather than in the layer itself, but there didn't seem to
be any clear consensus last time it was discussed.

Multiple layers with the same priority will have undefined results if
they overlap.  You probably don't want to allow that situation to occur.

p.