From patchwork Fri Jul 24 04:59:17 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "mark.yang" X-Patchwork-Id: 93410 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 96AD3C531C9 for ; Fri, 24 Jul 2026 04:59:22 +0000 (UTC) Received: from lgeamrelo11.lge.com (lgeamrelo11.lge.com [156.147.23.51]) by mx.groups.io with SMTP id smtpd.msgproc02-g2.13166.1784869161721137172 for ; Thu, 23 Jul 2026 21:59:22 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: lge.com, ip: 156.147.23.51, mailfrom: mark.yang@lge.com) Received: from unknown (HELO lgeamrelo01.lge.com) (156.147.1.125) by 156.147.23.51 with ESMTP; 24 Jul 2026 13:59:19 +0900 X-Original-SENDERIP: 156.147.1.125 X-Original-MAILFROM: mark.yang@lge.com Received: from unknown (HELO markyang..) (10.177.127.86) by 156.147.1.125 with ESMTP; 24 Jul 2026 13:59:19 +0900 X-Original-SENDERIP: 10.177.127.86 X-Original-MAILFROM: mark.yang@lge.com From: mark.yang@lge.com To: openembedded-core@lists.openembedded.org Cc: "mark.yang" Subject: [PATCH v2] kernel-arch: limit KERNEL_TOOLCHAIN to the kbuild recipes Date: Fri, 24 Jul 2026 13:59:17 +0900 Message-ID: <20260724045917.3595374-1-mark.yang@lge.com> X-Mailer: git-send-email 2.43.0 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 ; Fri, 24 Jul 2026 04:59:22 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/241888 From: "mark.yang" u-boot and barebox inherit kernel-arch for the ARCH mapping, so since 0e3756efe0 ("kernel-arch: add KERNEL_TOOLCHAIN to switch the whole kernel toolchain") KERNEL_TOOLCHAIN = "clang" switches them too. That swaps u-boot's gcc-cross dependency for clang-cross, but its kbuild hardcodes ${CROSS_COMPILE}gcc: /bin/sh: 1: x86_64-oe-linux-gcc: not found Full log: https://errors.yoctoproject.org/Errors/Build/242654/ Pin TOOLCHAIN back to gcc in kernel-arch and set it from KERNEL_TOOLCHAIN in kernel.bbclass, module-base and make-mod-scripts. Signed-off-by: mark.yang --- v2: add a comment explaining why kernel-arch keeps TOOLCHAIN pinned to gcc The v2 series was merged, so this carries the remaining v3 3/3 delta (<20260720231714.1631366-1-mark.yang@lge.com>) as a follow-up fix. meta/classes-recipe/kernel-arch.bbclass | 5 ++++- meta/classes-recipe/kernel.bbclass | 1 + meta/classes-recipe/module-base.bbclass | 1 + meta/recipes-kernel/make-mod-scripts/make-mod-scripts_1.0.bb | 1 + 4 files changed, 7 insertions(+), 1 deletion(-) diff --git a/meta/classes-recipe/kernel-arch.bbclass b/meta/classes-recipe/kernel-arch.bbclass index 5f8dbacc0c..72780940f1 100644 --- a/meta/classes-recipe/kernel-arch.bbclass +++ b/meta/classes-recipe/kernel-arch.bbclass @@ -92,5 +92,8 @@ KERNEL_LD:toolchain-clang = "${@bb.utils.contains('DISTRO_FEATURES', 'ld-is-lld' KERNEL_AR:toolchain-clang = "llvm-ar ${HOST_AR_KERNEL_ARCH}" KERNEL_OBJCOPY:toolchain-clang = "llvm-objcopy ${HOST_OBJCOPY_KERNEL_ARCH}" KERNEL_STRIP:toolchain-clang = "llvm-strip" +# The kbuild recipes (kernel, modules, make-mod-scripts) set TOOLCHAIN +# from KERNEL_TOOLCHAIN; other inheritors like u-boot and barebox only +# use kernel-arch for the ARCH mapping and must stay on gcc. KERNEL_TOOLCHAIN ?= "gcc" -TOOLCHAIN = "${KERNEL_TOOLCHAIN}" +TOOLCHAIN = "gcc" diff --git a/meta/classes-recipe/kernel.bbclass b/meta/classes-recipe/kernel.bbclass index 91248467be..619359fb7d 100644 --- a/meta/classes-recipe/kernel.bbclass +++ b/meta/classes-recipe/kernel.bbclass @@ -214,6 +214,7 @@ python do_symlink_kernsrc () { addtask symlink_kernsrc before do_patch do_configure after do_unpack inherit kernel-arch deploy +TOOLCHAIN = "${KERNEL_TOOLCHAIN}" PACKAGES_DYNAMIC += "^${KERNEL_PACKAGE_NAME}-module-.*" PACKAGES_DYNAMIC += "^${KERNEL_PACKAGE_NAME}-image-.*" diff --git a/meta/classes-recipe/module-base.bbclass b/meta/classes-recipe/module-base.bbclass index 2a225881ba..cae71a9b15 100644 --- a/meta/classes-recipe/module-base.bbclass +++ b/meta/classes-recipe/module-base.bbclass @@ -5,6 +5,7 @@ # inherit kernel-arch +TOOLCHAIN = "${KERNEL_TOOLCHAIN}" # We do the dependency this way because the output is not preserved # in sstate, so we must force do_compile to run (once). diff --git a/meta/recipes-kernel/make-mod-scripts/make-mod-scripts_1.0.bb b/meta/recipes-kernel/make-mod-scripts/make-mod-scripts_1.0.bb index 338a50de91..d11afa86a1 100644 --- a/meta/recipes-kernel/make-mod-scripts/make-mod-scripts_1.0.bb +++ b/meta/recipes-kernel/make-mod-scripts/make-mod-scripts_1.0.bb @@ -4,6 +4,7 @@ LICENSE = "GPL-2.0-only" LIC_FILES_CHKSUM = "file://${COREBASE}/meta/files/common-licenses/GPL-2.0-only;md5=801f80980d171dd6425610833a22dbe6" inherit kernel-arch linux-kernel-base +TOOLCHAIN = "${KERNEL_TOOLCHAIN}" inherit pkgconfig PACKAGE_ARCH = "${MACHINE_ARCH}"