[OE-core] Questions about the layer structure in OpenEmbedded-Core

[Koen Kooi]

Op 12 aug. 2011, om 09:30 heeft Samuel Stirtzel het volgende geschreven:

> 2011/8/12 Denys Dmytriyenko <denis at denix.org>:
>> On Fri, Aug 12, 2011 at 08:17:52AM +0200, Samuel Stirtzel wrote:
>>> Hi,
>>> lately I looked a bit into the structure of OE-Core and found pages
>>> like: http://www.yoctoproject.org/projects/openembedded-core, and
>>> http://openembedded.org/index.php/LayerIndex
>>> 
>>> 1. question: Are these informations reliable (the layer index page
>>> seems outdated). From the information I found, this graphic was
>>> created as conclusion:
>>> http://imageshack.us/photo/my-images/155/openembeddedlayers.png/
>>> 
>>> 2.: Currently the "UI layer" seems to be contained in
>>> meta-openembedded, so is this _the_ layer for UI and windowmanager
>>> recipes or is this a subject to change?
>>> 
>>> 3.: The commercial layer is nowhere found, what are the plans for this
>>> layer, or was this just an idea?
>> 
>> Commercial layers are what envisioned to be provided by OSVs, such as Mentor,
>> MontaVista, TimeSys etc...
>> 
> Missed out that OSV means Open Source Vendor.
> Would recipes for software like the Qt framework or Java fit in this

Qt is already in OE-core

> layer, or is it more for additional recipes to these packages like
> mysql or postgresql plugins for Qt?

And those plugins are already in meta-oe


>>> 4.: In which layer would distributions fit in the graphic?
>> 
>> In one of the earlier discussions it was said that distribution layer is
>> rather vertical and can span across multiple other layers by modifying and
>> adjusting different aspects through config files and .bbappends
>> 
> Thanks for pointing this out.
> I thought that it would be something similar like this, now I got the
> graphic adjusted properly:
> http://imageshack.us/photo/my-images/99/openembeddedlayers.png/
> 
>>> 5.: Is something important missing / wrong in my graphic (other than
>>> the distro stuff)?
>> 
>> --
>> Denys
> 
> 
> Regards
> Samuel
> 
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