Re: multi MACHINE build for same DISTRO_ARCH

[Henning Schild <henning.schild@siemens.com>]

Am Wed, 10 Jul 2019 21:09:21 +0200
schrieb "[ext] Jan Kiszka" <jan.kiszka@siemens.com>:

> On 10.07.19 20:52, benbrenson89 via isar-users wrote:
> >> Where does it fail?  
> > It fails on different points within the build. In my custom layer
> > configuration it fails when building the u-boot-script recipe.
> > 
> > IMHO the problem appears due to running those recipes in parallel
> > (for each multiconfig) and  some races appear
> > when mounting/unmounting the WORKDIR into the rootfs.
> >   
> 
> Vanilla u-boot-script is only built once per target arch. All normal
> specifics are in the u-boot env. Or in /etc/default/u-boot-script
> that can be adjusted by a machine-specific customization package. If
> you do the adjustment via u-boot-script directly, you need to make
> that package in your overlay machine-specific:
> 
> PN .= "-${MACHINE}"
> 
> > The next problem may appear if created packages of one MACHINE will
> > overwritten by the same package of another MACHINE.
> > Packages must contain a machine specific suffix in order to fix
> > that. 
>
> See above if you are deviating from the default.

And only for those that actually can not be shared. If you do that for
all your packages you might as well not use multiconfig because your
sharing goes down to nothing but buildchroot.

Henning

> Again, please study jailhouse-images carefully. It contains working
> pattern and
> - to my best knowledge - has no multiconfig issues.
> 
> Jan
>