From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F1AE62580CF for ; Thu, 21 Aug 2025 18:31:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755801067; cv=none; b=Uj1/gn6YipJn31sVAaZJiMGLpb3UMTnz48GbWUd1S/ciJibtGiXqLnuz16fFxXy3bdFKflZHQjPtzyz35p6AY8XTWPdMUGIBMWxquca9z46gWTconsaXjNBKISg3wohULPhjDsTu9ZI3izvxfQG3nAjMtLCaBFEBZRXaPNkr17Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755801067; c=relaxed/simple; bh=jW9psQDYGSGucDdWKd0ZMvCQCOy4hrOSEgQoNjfJMzY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=FZYD/Uphbjk15+5oAxrGxNlB6w7kgTXc/s4N3t8ZPDqdRlXTuQxUwxqE7xQqmU/u4KXBGusHuR48lKcaouPAV5L/CSoqyqh0byH2kUoAfiuhQiQ8hx19iz+eRNQeV/aYkkw1ckG140Cts1E4/Q6sUy+5sC3C3FfJDRDD6tvZ+8I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hZ8uVqpG; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hZ8uVqpG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3379CC4CEEB; Thu, 21 Aug 2025 18:31:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755801065; bh=jW9psQDYGSGucDdWKd0ZMvCQCOy4hrOSEgQoNjfJMzY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hZ8uVqpGSidjHqt8xpyHF1KzEfJv5QEitUsQj6OyNjM71QvUgn3mbbf5H0FI+p2No yPJPB9tIkNuWRkKXDcTKOhTIAzF1bP9EeVys2laIHXNytQMSPRdO1CgpHnnykGwytZ tXhvKZkn/x3a/sVIQ35CdchXduJri0Jy6lBVvdxsHOCCcREV7CNB4/vPbp4QkpZSAD CN4bfXwTSEPcuHv9kJcdFNP4hRVHATxTyOFZLC/BCXZevjsGM3PAGKvuX685tzcrPX 82rRlCcGFejmzO0LeIn1OMjQ6EJve/JV7Vw6m4l6tg2zMEV+mGaA0E2WqgrltxVrQh nDuV/fAhfZ/9Q== From: Nathan Chancellor To: gregkh@linuxfoundation.org, sashal@kernel.org Cc: stable@vger.kernel.org, nathan@kernel.org, thomas.weissschuh@linutronix.de Subject: [PATCH 5.15] kbuild: userprogs: use correct linker when mixing clang and GNU ld Date: Thu, 21 Aug 2025 11:30:58 -0700 Message-ID: <20250821183058.1264091-1-nathan@kernel.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <2025082105-sessions-superhero-9a5f@gregkh> References: <2025082105-sessions-superhero-9a5f@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Thomas Weißschuh commit 936599ca514973d44a766b7376c6bbdc96b6a8cc upstream. The userprogs infrastructure does not expect clang being used with GNU ld and in that case uses /usr/bin/ld for linking, not the configured $(LD). This fallback is problematic as it will break when cross-compiling. Mixing clang and GNU ld is used for example when building for SPARC64, as ld.lld is not sufficient; see Documentation/kbuild/llvm.rst. Relax the check around --ld-path so it gets used for all linkers. Fixes: dfc1b168a8c4 ("kbuild: userprogs: use correct lld when linking through clang") Cc: stable@vger.kernel.org Signed-off-by: Thomas Weißschuh Reviewed-by: Nathan Chancellor Signed-off-by: Masahiro Yamada [nathan: Work around wrapping '--ld-path' in cc-option in older stable branches due to older minimum LLVM version] Signed-off-by: Nathan Chancellor --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 6bc80f4cfd7e..8658e402988c 100644 --- a/Makefile +++ b/Makefile @@ -1130,7 +1130,7 @@ KBUILD_USERCFLAGS += $(filter -m32 -m64 --target=%, $(KBUILD_CPPFLAGS) $(KBUILD KBUILD_USERLDFLAGS += $(filter -m32 -m64 --target=%, $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)) # userspace programs are linked via the compiler, use the correct linker -ifeq ($(CONFIG_CC_IS_CLANG)$(CONFIG_LD_IS_LLD),yy) +ifdef CONFIG_CC_IS_CLANG KBUILD_USERLDFLAGS += $(call cc-option, --ld-path=$(LD)) endif base-commit: c79648372d02944bf4a54d87e3901db05d0ac82e -- 2.50.1