From patchwork Tue Oct 22 18:16:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 13846022 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 005347E0E4; Tue, 22 Oct 2024 18:17:12 +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=1729621033; cv=none; b=pJm6Zi/2MNm1QEeQohrdbW7Q3iEgRfo6qOS/2Af+eEei4Rh206PSfSIXzA1bHfsbdpCfCQ/y06MClXHg8ExbdQPmBbmEwsZEldedwuClfwy5iu3dI3qvSZzjWc6oRzIc28MQ6Nz/yf8chLWLXLKPgNkGLuvEO+nh9WTg8lHI3UA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729621033; c=relaxed/simple; bh=JMgdeQnGRehG99SRHtxuoUhtRAJRg6fbbjqiwoh9kEs=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=HwGR6YIGbl++16PdHBYZd3w59xQIMcpOfxr30slpaJRPGF8ptngge8ZL0QwJ7xJHQqUuYlDEk8UoeI8mQspP/WbhkF8VqWsDyUCZ1X9k97AH+6dMsJSpsS93vPhqK0KNVWUZGdjM32vgpGBflA1qSAWrmZEZY9WviRiuWXkeqGM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nBRu9kRa; 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="nBRu9kRa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1E625C4CEC3; Tue, 22 Oct 2024 18:17:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729621032; bh=JMgdeQnGRehG99SRHtxuoUhtRAJRg6fbbjqiwoh9kEs=; h=From:To:Cc:Subject:Date:From; b=nBRu9kRake9fewgSVPXm+8NtGEFhgLvPKAlPCrofyzhzgKBCj2ifwBf8ZxlFf+hgO TGZPQQ0qjQ+YfMSan1TfIeyULdEQKgaortO0i5eL1nuucRtL8GQPHXAQ4L8CWA/AHs 1bgBfQE1FnycSlh+5jOWzzFlnYCXdmFFt0ozdOxGa3HNzsWZpBYWw4TBTNyfRviSiB YVFvCIDr2BXIWG0C9mnb4G6T6rQuTD1eErQefB0c0YUDg6kkmlx/WylBqvy+Pq5uA3 UYh1PfbZr9MyPjA66xgkdfziuN09delxLSekX8MeIo1mGbqBdfknBtu+Jq+kCFcrs+ ZpdBd1gWG1rIQ== From: Masahiro Yamada To: linux-kbuild@vger.kernel.org Cc: Ben Hutchings , Ron Economos , Masahiro Yamada , Nathan Chancellor , Nicolas Schier , linux-kernel@vger.kernel.org Subject: [PATCH 1/3] kbuild: rpm-pkg: disable kernel-devel package when cross-compiling Date: Wed, 23 Oct 2024 03:16:57 +0900 Message-ID: <20241022181703.1710116-1-masahiroy@kernel.org> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kbuild@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Since commit f1d87664b82a ("kbuild: cross-compile linux-headers package when possible"), 'make binrpm-pkg' may attempt to cross-compile the kernel-devel package, but it fails under certain circumstances. For example, when CONFIG_MODULE_SIG_FORMAT is enabled on openSUSE Tumbleweed, the following command fails: $ make ARCH=arm64 CROSS_COMPILE=aarch64-suse-linux- binrpm-pkg [ snip ] Rebuilding host programs with aarch64-suse-linux-gcc... HOSTCC /home/masahiro/ref/linux/rpmbuild/BUILDROOT/kernel-6.12.0_rc4-1.aarch64/usr/src/kernels/6.12.0-rc4/scripts/kallsyms HOSTCC /home/masahiro/ref/linux/rpmbuild/BUILDROOT/kernel-6.12.0_rc4-1.aarch64/usr/src/kernels/6.12.0-rc4/scripts/sorttable HOSTCC /home/masahiro/ref/linux/rpmbuild/BUILDROOT/kernel-6.12.0_rc4-1.aarch64/usr/src/kernels/6.12.0-rc4/scripts/asn1_compiler HOSTCC /home/masahiro/ref/linux/rpmbuild/BUILDROOT/kernel-6.12.0_rc4-1.aarch64/usr/src/kernels/6.12.0-rc4/scripts/sign-file /home/masahiro/ref/linux/rpmbuild/BUILDROOT/kernel-6.12.0_rc4-1.aarch64/usr/src/kernels/6.12.0-rc4/scripts/sign-file.c:25:10: fatal error: openssl/opensslv.h: No such file or directory 25 | #include | ^~~~~~~~~~~~~~~~~~~~ compilation terminated. I believe this issue is less common on Fedora because cross-compiling user-space programs is not possible, even if the gcc-aarch64-linux-gnu package is installed. In other words, CONFIG_CC_CAN_LINK is unset. On Fedora 40, the package information explains this limitation clearly: $ dnf info gcc-aarch64-linux-gnu [ snip ] Description : Cross-build GNU C compiler. : : Only building kernels is currently supported. Support for cross-building : user space programs is not currently provided as that would massively multiply : the number of packages. This commit disables the kernel-devel package when cross-compiling because cross-compiling RPM packages is somewhat challenging, and I did not come up with a better solution. Fixes: f1d87664b82a ("kbuild: cross-compile linux-headers package when possible") Signed-off-by: Masahiro Yamada --- scripts/Makefile.package | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/scripts/Makefile.package b/scripts/Makefile.package index 11d53f240a2b..b9a4b0c8b8a0 100644 --- a/scripts/Makefile.package +++ b/scripts/Makefile.package @@ -72,7 +72,8 @@ rpm-pkg srcrpm-pkg binrpm-pkg: rpmbuild/SPECS/kernel.spec --define='_topdir $(abspath rpmbuild)' \ $(if $(filter a b, $(build-type)), \ --target $(UTS_MACHINE)-linux --build-in-place --noprep --define='_smp_mflags %{nil}' \ - $$(rpm -q rpm >/dev/null 2>&1 || echo --nodeps)) \ + $$(rpm -q rpm >/dev/null 2>&1 || echo --nodeps) \ + $(if $(cross_compiling), --without=devel)) \ $(RPMOPTS)) # deb-pkg srcdeb-pkg bindeb-pkg