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[2a01:cb00:1331:aa00:a2e4:fb7b:d88:7544]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49fc471b9a2sm8984075e9.0.2026.09.17.15.07.51 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Sep 2026 15:07:52 -0700 (PDT) From: Yoann Congal To: openembedded-core@lists.openembedded.org Subject: [OE-core][wrynose 06/79] kernel-yocto-rust: Add clang toolchain check for riscv64 Date: Fri, 18 Sep 2026 00:05:51 +0200 Message-ID: <8256d2c19680fb8111471cdefc99fb89839d23ab.1789681419.git.yoann.congal@smile.fr> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: MIME-Version: 1.0 List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Thu, 17 Sep 2026 22:08:04 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/246101 From: Harish Sadineni Kernel Rust support on riscv64 requires Clang. Wrynose doesn't provide a Clang toolchain for kernel builds, but downstream layers may add this support via a linux-yocto_%.bbappend. Rather than unconditionally skipping riscv64, check whether a Clang toolchain is available and only error out with a clear message when it isn't, so that users with Clang-enabled downstream configurations aren't broken. Signed-off-by: Harish Sadineni Signed-off-by: Yoann Congal [YC: fixed a typo in message. This matches master commit 2b228490b7ef] --- meta/classes-recipe/kernel-yocto-rust.bbclass | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/meta/classes-recipe/kernel-yocto-rust.bbclass b/meta/classes-recipe/kernel-yocto-rust.bbclass index 49f2bfc1ae8..4c0b7231e6a 100644 --- a/meta/classes-recipe/kernel-yocto-rust.bbclass +++ b/meta/classes-recipe/kernel-yocto-rust.bbclass @@ -25,3 +25,13 @@ do_kernel_configme:append () { # More details in: https://lists.openembedded.org/g/openembedded-core/message/229336 # Disable ccache for kernel build if kernel rust support is enabled to workaround this. CCACHE_DISABLE ?= "1" + +python () { + if d.getVar('TARGET_ARCH') == 'riscv64' and d.getVar('TOOLCHAIN') != 'clang': + raise bb.parse.SkipRecipe( + "Rust support in the kernel on riscv64 requires kernel to be build with clang " + "toolchain, but the kernel is built with toolchain '%s'. See " + "https://docs.kernel.org/rust/arch-support.html for details." + % d.getVar('TOOLCHAIN') + ) +}