Hi Osama,
On 11/24/25 7:04 PM, Alexander Kanavin via lists.openembedded.org wrote:
On Mon, 24 Nov 2025 at 18:24, Osama Abdelkader via
lists.openembedded.org
<[email protected]> wrote:
Should the tool:
cover only DEPENDS (build-time)?
include RDEPENDS with pkgdata?
resolve virtual/ providers?
Any prior work I may have missed?
If the idea is acceptable, I will prepare a proper implementation and send a
patchset to the appropriate mailing list.
Thank you for your feedback!
Hello Osama,
DEPENDS is a somewhat unfortunate variable name that we're stuck with.
It does not actually specify a recipe dependency, it specifies
something more specific:
- run A.do_populate_sysroot before B.do_prepare_recipe_sysroot (a task
dependency)
- within B.do_prepare_recipe_sysroot task, take the output that
A.do_populate_sysroot produced and place that into B's sysroot (a hint
for sysroot creation)
So I feel that any tool that aims to make things easier should
continue to present particular tasks; there's really no such thing as
'recipe-level dependency'.
In addition to that RDEPENDS is not specifying recipes. It is
specifying packages that the recipes produce (which sometimes match
the recipe names, but are otherwise distinct). You really should not
mix them together.
In addition to what Alex said, you also have RRECOMMENDS, PACKAGECONFIG,
anonymous python functions, dynamic packaging, etc. that allow to
specify build or runtime dependencies outside of the more common
DEPENDS/RDEPENDS, so you'd need to interface with the internals of
bitbake and not simply checking those variables.
Finally, there are other ways to do dependencies than those variables,
as highlighted by Alex already. DEPENDS does A.do_populate_sysroot
before B.do_prepare_recipe_sysroot, but you also have other ways to have
dependencies, see the u-boot recipe for Rockchip boards here
https://git.yoctoproject.org/meta-rockchip/tree/recipes-bsp/u-boot/u-boot-rockchip.inc.
We depend on 1+ binary (TF-A/BL31 and OP-TEE OS/BL32) that needs to be
available in the deploy directory before building the u-boot recipe.
Cheers,
Quentin
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