[yocto] Building only the app and not the Linux core

[Paul Barker]

On Tue, 12 Nov 2019, at 15:33, gholhakiii at yahoo.com wrote:
> Hi all,
> 
> I would like to build my yocto project, but only my applications. I 
> mean, I would like to separate my Linux build and the application build.
> I want to just have my meta-layer which contains my application being 
> build by calling the bitbake command.
> Can anyone give me a pointer? Using the multiconfig is the way to do it?
> 
> Best
> Em
> 
> P.S. If I want to be more specific, I just want to use Yocto as a 
> cross-compilation tool for baremetal applications.

You could start by looking at how meta-freertos (https://github.com/aehs29/meta-freertos) achieves this. It has support for running the resulting bare-metal app under qemu which you might not need, but the rest of freertos-image.bbclass is probably a good reference.

-- 
Paul Barker