From: Harish Sadineni <[email protected]> v2: - combined [PATCH 05/16][0] & [PATCH 06/16][1] from v1. - updated commit message and added in code comments for patch "[PATCH 09/15] kernel-devsrc: copying rust-kernel source to $kerneldir/build"
[0] https://lists.openembedded.org/g/openembedded-core/message/228559 [1] https://lists.openembedded.org/g/openembedded-core/message/228560 v1: The previous series was RFC v4, "Enable Rust support for Linux kernel" (https://lists.openembedded.org/g/openembedded-core/message/226623). In addition, Yoann Congal posted RFC v2, "Kernel Rust out-of-tree module support" (https://lists.openembedded.org/g/openembedded-core/message/227281), which builds on top of RFC v4. The current patch series is a unified version that combines both efforts. Compared to the earlier series, the main changes are: -Kernel configuration fragments have been moved to yocto-kernel-cache. -The kernel fragments have been removed from SRC_URI and from the files directory previously stored under recipes-kernel/linux/files. -Updated the "[PATCH 11/16] selftest/cases/runtime_test: Add test for Linux Rust sample" by appending KERNEL_EXTRA_FEATURES:append = ' features/kernel-sample/kernel-rust-sample.scc' instead of adding this directly in the linux-yocto recipe. This patch series introduces Rust support into the linux-yocto kernel recipe and related build infrastructure in the Yocto Project. The goal is to enable building the Linux kernel with Rust components and provide support for building kernel module which is written in rust and also provide support to build rust kernel modules in sdk. And this series adds test for Linux Rust sample and also added support for out-of-tree kernel module written in Rust as well as associated test. Summary of patches: - Patch 01: Extend 'bindgen-cli' to support 'nativesdk', allowing it to be available in the SDK environment. - Patch 02: Add required dependencies ('clang-native', 'rust-native', 'bindgen-cli-native') to the kernel to support Rust binding generation. - Patch 03: Install the Rust standard library source ('library/') into `work-shared` and which will be later copied to linux-yocto recipe-sysroot-native. - Patch 04: Added 'rust-kernel' to DISTRO_FEATURES_FILTER_NATIVE and DISTRO_FEATURES_FILTER_NATIVESDK, the 'rust-kernel' feature automatically propagates from target DISTRO_FEATURES to native/nativesdk builds - Patch 05: Stage the Rust sources into `recipe-sysroot-native` for kernel build compatibility, making them visible during native builds and Updated `kernel-yocto.bbclass` to invoke `make rustavailable` during 'do_kernel_configme', ensuring Rust readiness. - Patch 06: Add kernel configuration support for Rust (via 'kernel-rust.scc'), enabling the Rust build options in kernel config. - Patch 07: Fixed buildpaths errors when rust is enabled for kernel by appending --remap-path-prefix to RUST_DEBUG_REMAP - Patch 08: Disabling ccache when rust-kernel is enabled for linux-yocto. - Patch 09: Copy Rust kernel sources into kernel-devsrc build directory which will be required while running 'make prepare' in sdk. - Patch 10: Added oe-selftest case for the Linux Rust sample. - patch 11: Copying include/config/auto.conf in STAGING_KERNEL_BUILDDIR - patch 12: Export artifacts needed for out-of-tree Rust compilation - patch 13: Prepare out-of-tree rust module compilation - patch 14: Added rust-out-of-tree-module recipe in meta-skeleton layer - patch 15: Added rust-out-of-tree selftest Patches have been build-tested successfully on: - qemuarm64 - qemux86-64 Benchmark test-result for x86-64: +-------------------------------+------------+-----------+-----------+-----------+ | DISTRO_FEATURES | real | user | sys | FS usage | +-------------------------------+------------+-----------+-----------+-----------+ | rust-kernel (enabled) | 46m1.720s | 0m28.864s | 0m3.696s | 58 GB | | rust-kernel (disabled) | 30m1.053s | 0m20.091s | 0m2.748s | 33 GB | +-------------------------------+------------+-----------+-----------+-----------+ The increased in time & fs is due to kernel rust dependencies in linux-yocto. Harish Sadineni (8): bindgen-cli: extend BBCLASSEXTEND to include nativesdk linux-yocto: conditionally add clang/rust/bindgen-cli-native to DEPENDS rust: install Rust library sources for 'make rustavailable' support bitbake.conf: Include "rust-kernel" in native/nativesdk feature filters kernel-yocto: enable Rust kernel support via rustavailable and staged rustlib sources linux-yocto: enable Rust support in kernel configuration kernel-yocto: Fix for buildpaths errors when rust is enabled for kernel kernel-devsrc: copying rust-kernel source to $kerneldir/build Yoann Congal (7): kernel-yocto.bbclass: Disable ccache when rust-kernel is enabled selftest/cases/runtime_test: Add test for Linux Rust sample kernel.bbclass: Copy include/config/auto.conf in STAGING_KERNEL_BUILDDIR kernel.bbclass: Export artifacts needed for out-of-tree Rust compilation module.bbclass: Prepare out-of-tree rust module compilation meta-skeleton: Add rust-out-of-tree-module recipe runtime_test: Add rust-out-of-tree selftest .../rust-out-of-tree-module_git.bb | 18 ++++++++++ meta/classes-recipe/kernel-yocto.bbclass | 28 +++++++++++++++ meta/classes-recipe/kernel.bbclass | 19 ++++++++++ meta/classes-recipe/module.bbclass | 8 +++++ meta/conf/bitbake.conf | 4 +-- meta/lib/oeqa/selftest/cases/runtime_test.py | 35 +++++++++++++++++++ .../bindgen-cli/bindgen-cli_0.72.1.bb | 2 +- meta/recipes-devtools/rust/rust_1.91.1.bb | 17 +++++++++ meta/recipes-kernel/linux/kernel-devsrc.bb | 9 +++++ meta/recipes-kernel/linux/linux-yocto.inc | 2 ++ meta/recipes-kernel/linux/linux-yocto_6.16.bb | 1 + meta/recipes-kernel/linux/linux-yocto_6.18.bb | 1 + 12 files changed, 141 insertions(+), 3 deletions(-) create mode 100644 meta-skeleton/recipes-kernel/rust-out-of-tree-module/rust-out-of-tree-module_git.bb -- 2.49.0
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