Hi Haim,
On 11/7/24 12:32 PM, Haimbach via Lists.Yoctoproject.Org wrote:
Hi,
I have layer which I add into it some patches and configuration files for the
RT PATCH.
So I need for an example the RT patch for "Image-A", and for "Image-B" I don't
need it.
You probably want a DISTRO here.
The issue is the image cannot decide which kernel to build for example.
So if you have two kernel recipes, one RT and the other one non-RT, then
you need a different mechanism. The selection is usually made via
PREFERRED_PROVIDER_virtual/kernel = "<your-recipe-name>" and since
recipes cannot impact other recipes and that an image recipe is a
recipe, that variable needs to be set in a conf file (distro, machine,
local, bblayers, etc...).
By having it in a distro conf file (let's say mydistro and mydistro-rt),
you can then build your image-A without RT by using DISTRO=mydistro and
image-B with RT by using DISTRO=mydistro-rt.
Additionally, your recipes can now decide to apply the patches only for
the mydistro-rt by using the OVERRIDES mechanism:
SRC_URI:append:mydistro-rt = " file://rt.patch"
If you can provide the recipes, layers and content of the patches, we
may be able to guide you better.
Cheers,
Quentin
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