[OE-core] SRC_URI computing order

[Eric Bénard]

Hi,

Le Mon, 28 Oct 2013 15:10:04 +0100,
Eric Bénard <eric at eukrea.com> a écrit :
> I saw your patch fixing FILESPATH's and Kergoth's one fixing
> PACKAGECONFIG processing order and I think I'm also facing an order
> problem when SRC_URI is computed.
> 
> So when building SRC_URI when two layers have bbappend which apply
> patches : the SRC_URI seems to be built using an order I fail to
> understand somewhere instead of priority or the overrides' order.
> 
> The use case is a System on Module and its custom motherboard :
> - meta-fsl-arm :
> * linux-imx_xyz.bb :
> SRC_URI = "patchgeneric1 ..."
> 
> - meta-som-support :
> * conf/machine/mysom.conf
> 
> * linux-imx_xyz.bbappend :
> SRC_URI_append_mysom = "patchsom1 patchsom2 ..."
> 
> - meta-custommotherboard (SOM + Cunstom Motherboard) :
> * conf/machine/myproduct.conf
> MACHINEOVERRIDES_prepend = "mysom:"
> include conf/machine/mysom.conf
> 
> * linux-imx_xyz.bbappend :
> SRC_URI_append_myproduct = "patchproduct1 patchproduct2 ..."
> 
> in the end I get :
> SRC_URI = "patchgeneric1 ... patchsoc1 ... patchproduct1 ...
> patchsom1 ..."
> 
> and of course as patchproduct* are supposed to apply on top of
> patchsoc* the patch fail to apply.
> 
> I didn't found a way to build SRC_URI in the order I would like (I
> tested : changing MACHINEOVERRIDES 's order, changing layers' priority,
> changing machine's name to see if that was an alphabetical order ...).
> 
> In the end the only thing which worked was to add an (empty by default)
> variable in som's SRC_URI and filling this variables from the
> custommotherboard's bbappend.
> 
> Is the behaviour I'm seeing expected or is there something wrong in my
> setup ?
> 
do you need more details concerning this problem ?

Thanks
Eric