On Wed Feb 11, 2026 at 5:19 PM CET, Harish Sadineni wrote: > > On 1/29/2026 10:09 PM, Sadineni, Harish via lists.openembedded.org wrote: >> From: Yoann Congal <[email protected]> >> >> Publish artifacts from kernel compilation to allow out-of-tree Rust >> compilation: >> * scripts/target.json: target definition: architecture, ABI, compiler >> options, ... >> * rust/: the crates compiled by the kernel available to >> out-of-tree-modules > Hi Yoann, > > I am dropping this patch “kernel.bbclass: Export artifacts needed for > out-of-tree Rust compilation” from my v6 patch series. > > Without this patch, target.json and the rust/ directory were already > getting published for x86_64. On arm64, target.json will not be created, > yet the module is still generated and works fine. > > When building rust-out-f-tree-module for arm64 with this patch applied, > it emits a warning that Out-of-tree rust modules build will fail due to > a missing target.json in kernel. However, in practice, the build > completes successfully. > > I have tested without this patch on both arm64 and x86_64, both tests > were successful. > > So, this patch does not appear to be necessary. Are you OK with dropping > this patch?
Yes, as long as it builds without warnings and test succesfully, I'm fine with it. > I have pushed the updated changes to the below oe-contrib branch: > https://git.openembedded.org/openembedded-core-contrib/log/?h=deepesh/rust-in-kernel-v6 > > Additionally, I have extended the ccache disabling to make-mod-scripts > (as part of "kernel: Disable ccache when kernel rust support is enabled" > patch) and updated "meta-skeleton: Add rust-out-of-tree-module recipe" > to align with the new changes. Shouldn't the KERNEL_RUST_SUPPORT check in rust-out-of-tree-module_git.bb be moved to the module-rust class? Generally, If you think that you rewrote some patches, I'm OK with you taking authorship (leaving me as Co-developed-by). That should allow you to edit patches more freely. Regards, > Thanks, > Harish >> Signed-off-by: Yoann Congal <[email protected]> >> Signed-off-by: Harish Sadineni <[email protected]> >> --- >> meta/classes-recipe/kernel.bbclass | 18 ++++++++++++++++++ >> 1 file changed, 18 insertions(+) >> >> diff --git a/meta/classes-recipe/kernel.bbclass >> b/meta/classes-recipe/kernel.bbclass >> index 30a10b0801..dfb8604a68 100644 >> --- a/meta/classes-recipe/kernel.bbclass >> +++ b/meta/classes-recipe/kernel.bbclass >> @@ -632,6 +632,24 @@ do_shared_workdir () { >> cp -r scripts/gcc-plugins ${kerneldir}/scripts >> fi >> >> + if ${@bb.utils.contains("DISTRO_FEATURES", "rust-kernel", "true", >> "false", d)}; then >> + # Copy target.json file needed for out-of-tree rust modules >> + if [ -e scripts/target.json ]; then >> + bbnote "Copying scripts/target.json" >> + mkdir -p ${kerneldir}/scripts >> + cp scripts/target.json ${kerneldir}/scripts >> + else >> + bbwarn "scripts/target.json not found in compiled >> kernel. Out-of-tree rust modules will fail to build." >> + fi >> + >> + # Copy rust/ needed by out-of-tree module (firstly for the core >> rust crate) >> + if [ -e rust/ ]; then >> + bbnote "Copying rust/" >> + cp -r rust ${kerneldir}/ >> + else >> + bbwarn "rust/ not found in compiled kernel. Out-of-tree >> rust modules will fail to build." >> + fi >> + fi >> } >> >> # We don't need to stage anything, not the modules/firmware since those >> would clash with linux-firmware >> >> >> -- Yoann Congal Smile ECS
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#231023): https://lists.openembedded.org/g/openembedded-core/message/231023 Mute This Topic: https://lists.openembedded.org/mt/117759084/21656 Group Owner: [email protected] Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
