Re: [PATCH v11 0/3] Move kernel artifacts deployment from image recipe

[Zhihang Wei <wzh@ilbers.de>]

On 6/9/26 10:44, Anton Mikanovich wrote:
> Image task "do_copy_boot_files" is used to deploy kernel, initrd and
> devicetree binaries to deploy directory.
>
> When different images for the same target are built (e.g., "-base" and
> "-debug") in parallel, this causes issues with DTB deployment since
> they have no any image_name-specific stuff in the path, unlike kernel
> and initrd.
>
> Here we move DTB deployment to the kernel recipe (for both distro and
> custom kernel recipes), where DTBs and kernel image are extracted from
> the kernel package.
> For the distro kernels it means we install its deb into the schroot to
> obtain the real artifacts from the filesystem.
>
> To keep the same artifacts path as before "do_copy_boot_files" task is
> now searching for the artifacts and create per-image symlinks.
> In case any naming conflicts (like dtbs with the same name from
> different kernels) the latest built dtb will be pointing by the
> symlink, while both will be deployed to different subdirs without
> conflicting and stay untouched.
> This symlink creation is done in the same way as artifacts conficts are
> handled by Yocto.
>
> The case when different distros (e.g., bullseye/bookworm) are using the
> same name for DTB binaries is covered by the patch 2. It also covers
> the case when image uses different kernel suffix (e.g., "realtime"
> option for the kernel in some downstreams).
>
> Related topics on maillist:
>
> https://groups.google.com/g/isar-users/c/ht3YmKZcJlM
> https://groups.google.com/g/isar-users/c/4BRDM02xC40
> https://groups.google.com/g/isar-users/c/qAnjahjjfsw
> https://groups.google.com/g/isar-users/c/ZMD4XY4dKWQ
> https://groups.google.com/g/isar-users/c/PSGU_AcdPZ8
> https://groups.google.com/g/isar-users/c/Va0Ue-ISYeA
> https://groups.google.com/g/isar-users/c/ixzytHYnTmI
>
> Changes since v10:
> - Rebase on next.
> - Use the same deploy dir with per-kernel subdirs.
> - Allow using different kernels for one machine.
> - Restore paths for downstreams in Yocto way (symlinks).
>
> Changes since v9:
> - Base on v6.
> - Rebase on next.
> - Move also kernel deployment from image recipe.
>
> Changes since v8:
> - Rebase on next.
> - Document how this approach differs from OpenEmbedded.
>
> Changes since v7:
> - Fix SOB.
>
> Changes since v6:
> - Fix isoimage-isohybrid-isar WIC plugin.
> - Split testcases.
> - Update wording.
>
> Changes since v4:
> - Rebase on next.
> - Squash latest patch to first one.
> - Fix deploy paths in initrd tests.
>
> Changes since v3:
> - Rebase on next.
> - Fix target deploy dir path for installer.
>
> Changes since v2:
> - Patch 1: Consider also kernel suffix.
> - Patch 2: Use separate testcase for possible dtb clashes.
> - Minor cosmetic fixes.
>
> Changes since v1:
> - Separate `dtb-files` recipe used instead of linux one
> - Included older "[PATCH] Fix do_copy_boot_files error" into the
> series ( https://groups.google.com/g/isar-users/c/Va0Ue-ISYeA )
>
> Anton Mikanovich (3):
>    meta: Fix do_copy_boot_files error for different distros of same
>      machine
>    meta: Move kernel artifacts deployment from image recipe
>    CI: Check kernel artifacts deployment
>
>   RECIPE-API-CHANGELOG.md                       | 28 +++++++++++
>   .../installer-add-rootfs.bbclass              |  2 +-
>   meta/classes-recipe/image.bbclass             | 39 ++++++++--------
>   meta/classes-recipe/linux-deploy.bbclass      | 46 +++++++++++++++++++
>   meta/classes-recipe/linux-kernel.bbclass      |  3 ++
>   meta/conf/bitbake.conf                        |  2 +-
>   meta/recipes-kernel/linux/files/getkernel.sh  | 40 ++++++++++++++++
>   meta/recipes-kernel/linux/files/rules.tmpl    | 12 +++++
>   meta/recipes-kernel/linux/linux-distro.bb     | 27 +++++++++++
>   testsuite/citest.py                           | 30 ++++++++----
>   10 files changed, 199 insertions(+), 30 deletions(-)
>   create mode 100644 meta/classes-recipe/linux-deploy.bbclass
>   create mode 100755 meta/recipes-kernel/linux/files/getkernel.sh
>   create mode 100644 meta/recipes-kernel/linux/files/rules.tmpl
>
Hi all,

Any feedback or downstream testing results for this version? Thanks.

Zhihang

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