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 A148D20F07C for ; Thu, 21 Aug 2025 18:30:51 +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=1755801051; cv=none; b=kAHxZYEZ/UJVRoXSiE9lEdpzQ8vWDBrWYjcWntXKbabn1MNPLNoF2cTrqf9fNftIZhYIUumTZPf1B9V9khxv5xUarRtYQshL655yBNb1t8yvwKRn1D4GekTJRY5MwQxoHsiHOs+yEX9dt4PBvsxNIxwNkj3EJRoCpNVJ6DY22uY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755801051; c=relaxed/simple; bh=U3jb9iv5x2ZG1pm8ucegnwEyHvReeDLm/Bwku8ijtNI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=bcpt1m8Uv460KEW/ZjG9/DGbqWp8hwbW7ju0JdBzmV+vr+E7VchVYO5q2VHDi8LjM4FPkT8DUoib9GYEApJ7ynkxAUMKLVFZ/XQb9TgaYdsiVVuEguTi+WPQeJTp9/uakESkZWZVYRcjzFeQT2hE/1p99oLQY0aR0oKdniQDYP4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=G6OMP8Ht; 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="G6OMP8Ht" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E090BC4CEEB; Thu, 21 Aug 2025 18:30:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755801051; bh=U3jb9iv5x2ZG1pm8ucegnwEyHvReeDLm/Bwku8ijtNI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G6OMP8HtkPGkVsfftVudb06XDwhkDr2Cn9M/eQlfacO1Z8pn4RadeehszH2jYleS3 7qkIcbYbuL3mfU5wFJPC6DM5igvWSOJswgXWcHXoCgvSsarqOexbeokf8cePvRcHJJ /gGy5sXsRrAl/ltBs4Hf38ceR0pnkOCl8VxOv6f1tjb0+yvM1QUrgwzA/vI5lVkiz0 aYv/2YSeNfK4NK+ULG3bPVQ57kewF8s37hyoIcFJdJ+As4MbU82xUuYvuwoW/gzArz sgGFcDdcz6b6yn7vIgNF+pwM6QBFl+PxFGgFL+c2hyGXkfuPbjRaeCkYG90DZpiR1e goJoidbYcrllA== From: Nathan Chancellor To: gregkh@linuxfoundation.org, sashal@kernel.org Cc: stable@vger.kernel.org, nathan@kernel.org, thomas.weissschuh@linutronix.de Subject: [PATCH 6.6] kbuild: userprogs: use correct linker when mixing clang and GNU ld Date: Thu, 21 Aug 2025 11:29:49 -0700 Message-ID: <20250821182949.1216551-1-nathan@kernel.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <2025082104-shadow-nutlike-7f81@gregkh> References: <2025082104-shadow-nutlike-7f81@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 685a65992449..59e31545b35c 100644 --- a/Makefile +++ b/Makefile @@ -1061,7 +1061,7 @@ 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: bb9c90ab9c5a1a933a0dfd302a3fde73642b2b06 -- 2.50.1