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 From patchwork Tue Oct 22 18:16:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 13846023 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 5772E1C9DF7; Tue, 22 Oct 2024 18:17:15 +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=1729621035; cv=none; b=hZjv9ln5pPrGvxfTAGym6eCzFVKq0Fb9ZGMqFQ6Y9D9KecBjcVCtR2qn8cVjR7PYnQdOesuK7ctSna3o3lhr519FokRfro8v9u/eGvk7qNMhwMZ2z4Gu/5rFq/lDmncOg593+aB2uEAeKRU+qQKNur10A6heuJaCaI7vvWZo1OA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729621035; c=relaxed/simple; bh=KFiqW/PK+TnSLdlqReYk2ROuLx7NKnxMPV0s5WlupcU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nhErXZWknTxtowr/p5yg9YZd2dgPpv6WhSvV1qUWwbhoATyk6bUEaNWSH/1/C1hB+VNc+xwDZV6SRXox9hjiInmWlT+UE4ZxHwPkaWl2bdRUW5AWQSnz4gmZB06Med0+eccPBni78QJpCilw5YwZJjof6MmA3O9B/RnKaWjn7zw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Zuu2o6jo; 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="Zuu2o6jo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 07A9AC4CEE3; Tue, 22 Oct 2024 18:17:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729621034; bh=KFiqW/PK+TnSLdlqReYk2ROuLx7NKnxMPV0s5WlupcU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Zuu2o6joqh+8WWdvZrJ8g1VhuXdPILsiXpFWiWqdfp1Z9/HDluBGDkS+BHmLx47YI PlfXaG9lznzdAcmznNoVPtt1wMoOXphRPwIznOzpb0FpsUMzBxQVRzkANXhQfQT0Np VpMS0xXKb4sBTjRZYGkcSxGNhv4KJDxRYkBZsBOAsmpV12f/xXij8mi46wqEiFp1DN fGQxJMlG7hEDj5snHjlHs7AasTQDOq6RmtVOLQnXrL+Wwoow8JHwOQVexv0KA+mEPW WoafnEGebBfz9XM6NztQ89ApYP1o0hh1OOZ3zg5ieYqlYnqXxbGF0lySKQz+gCr8oO Ep/Sk91gZgW/A== From: Masahiro Yamada To: linux-kbuild@vger.kernel.org Cc: Ben Hutchings , Ron Economos , Masahiro Yamada , Bill Wendling , Justin Stitt , Nathan Chancellor , Nick Desaulniers , Nicolas Schier , linux-kernel@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH 2/3] kbuild: deb-pkg: add pkg.linux-upstream.nokernelheaders build profile Date: Wed, 23 Oct 2024 03:16:58 +0900 Message-ID: <20241022181703.1710116-2-masahiroy@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241022181703.1710116-1-masahiroy@kernel.org> References: <20241022181703.1710116-1-masahiroy@kernel.org> 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 bindeb-pkg' may attempt to cross-compile the linux-headers package, but it fails under certain circumstances. For example, when CONFIG_MODULE_SIG_FORMAT is enabled on Debian, the following command fails: $ make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- bindeb-pkg [ snip ] Rebuilding host programs with aarch64-linux-gnu-gcc... HOSTCC debian/linux-headers-6.12.0-rc4/usr/src/linux-headers-6.12.0-rc4/scripts/kallsyms HOSTCC debian/linux-headers-6.12.0-rc4/usr/src/linux-headers-6.12.0-rc4/scripts/sorttable HOSTCC debian/linux-headers-6.12.0-rc4/usr/src/linux-headers-6.12.0-rc4/scripts/asn1_compiler HOSTCC debian/linux-headers-6.12.0-rc4/usr/src/linux-headers-6.12.0-rc4/scripts/sign-file In file included from /usr/include/openssl/opensslv.h:109, from debian/linux-headers-6.12.0-rc4/usr/src/linux-headers-6.12.0-rc4/scripts/sign-file.c:25: /usr/include/openssl/macros.h:14:10: fatal error: openssl/opensslconf.h: No such file or directory 14 | #include | ^~~~~~~~~~~~~~~~~~~~~~~ compilation terminated. This commit adds a new profile, pkg.linux-upstream.nokernelheaders, to guard the linux-headers package. There are two options to fix the above issue. [option 1] Set the pkg.linux-upstream.nokernelheaders build profile $ DEB_BUILD_PROFILES=pkg.linux-upstream.nokernelheaders \ make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- bindeb-pkg This skips the building of the linux-headers package. [option 2] Install the necessary build dependencies If you want to cross-compile the linux-headers package, you need to install additional packages. This is a one-time installation step. For example, on Debian, the packages necessary for cross-compiling it to arm64 can be installed with the following commands: # dpkg --add-architecture arm64 # apt update # apt install gcc-aarch64-linux-gnu libssl-dev:arm64 Fixes: f1d87664b82a ("kbuild: cross-compile linux-headers package when possible") Reported-by: Ron Economos Closes: https://lore.kernel.org/all/b3d4f49e-7ddb-29ba-0967-689232329b53@w6rz.net/ Signed-off-by: Masahiro Yamada Tested-by: Ron Economos Reviewed-by: Nicolas Schier --- scripts/package/builddeb | 2 +- scripts/package/install-extmod-build | 6 ++---- scripts/package/mkdebian | 9 ++++++++- 3 files changed, 11 insertions(+), 6 deletions(-) diff --git a/scripts/package/builddeb b/scripts/package/builddeb index 404587fc71fe..441b0bb66e0d 100755 --- a/scripts/package/builddeb +++ b/scripts/package/builddeb @@ -123,7 +123,7 @@ install_kernel_headers () { pdir=debian/$1 version=${1#linux-headers-} - "${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}" + CC="${DEB_HOST_GNU_TYPE}-gcc" "${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}" mkdir -p $pdir/lib/modules/$version/ ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build diff --git a/scripts/package/install-extmod-build b/scripts/package/install-extmod-build index d2c9cacecc0c..7ec1f061a519 100755 --- a/scripts/package/install-extmod-build +++ b/scripts/package/install-extmod-build @@ -44,13 +44,11 @@ mkdir -p "${destdir}" fi } | tar -c -f - -T - | tar -xf - -C "${destdir}" -# When ${CC} and ${HOSTCC} differ, we are likely cross-compiling. Rebuild host -# programs using ${CC}. This assumes CC=${CROSS_COMPILE}gcc, which is usually -# the case for package building. It does not cross-compile when CC=clang. +# When ${CC} and ${HOSTCC} differ, rebuild host programs using ${CC}. # # This caters to host programs that participate in Kbuild. objtool and # resolve_btfids are out of scope. -if [ "${CC}" != "${HOSTCC}" ] && is_enabled CONFIG_CC_CAN_LINK; then +if [ "${CC}" != "${HOSTCC}" ]; then echo "Rebuilding host programs with ${CC}..." cat <<-'EOF' > "${destdir}/Kbuild" diff --git a/scripts/package/mkdebian b/scripts/package/mkdebian index 10637d403777..93eb50356ddb 100755 --- a/scripts/package/mkdebian +++ b/scripts/package/mkdebian @@ -179,6 +179,8 @@ fi echo $debarch > debian/arch +host_gnu=$(dpkg-architecture -a "${debarch}" -q DEB_HOST_GNU_TYPE | sed 's/_/-/g') + # Generate a simple changelog template cat < debian/changelog $sourcename ($packageversion) $distribution; urgency=low @@ -196,7 +198,11 @@ Priority: optional Maintainer: $maintainer Rules-Requires-Root: no Build-Depends: debhelper-compat (= 12) -Build-Depends-Arch: bc, bison, cpio, flex, kmod, libelf-dev:native, libssl-dev:native, rsync +Build-Depends-Arch: bc, bison, cpio, flex, + gcc-${host_gnu} , + kmod, libelf-dev:native, + libssl-dev:native, libssl-dev , + rsync Homepage: https://www.kernel.org/ Package: $packagename-$version @@ -224,6 +230,7 @@ cat <> debian/control Package: linux-headers-$version Architecture: $debarch +Build-Profiles: Description: Linux kernel headers for $version on $debarch This package provides kernel header files for $version on $debarch . From patchwork Tue Oct 22 18:16:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 13846024 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 1EC841CB30E; Tue, 22 Oct 2024 18:17:16 +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=1729621038; cv=none; b=nQSwYlGzs50nY2MuItIEj/lX3yhcqM3LLbXVuq26NOpSdDp05e8Belj/4+LgNO6/3qe+bFJA0C0vrXAhkGp3PRHXH3Txgvp42VH0pfhxX5hlsv9xBmKfSu0xJZZZTbGGH00W1Fo+S071U6lMx0ALeqtTj892G17R1CgtegnU17M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729621038; c=relaxed/simple; bh=69MTF+FDcDqGCmtUQUj1fxrLiwjJ7KwdB47gZ9JlPJI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=kHkDZoUckvlj4ZHzGVfWLGcctz+M0yly6b0bDgTHMeiO6webw7aAZbUK81NbAOc7c9+xHJIf8hqyXERed7zjZXjjVzmp9qiqfOeZSU+atEyzIfVBrIFl+7Vy90l0Lo0unDi5SlEc+1oz66BXJ/RaZR1Na0PI/YqJQD7rqPSixo0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mXHeViGC; 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="mXHeViGC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 59C0CC4CEC3; Tue, 22 Oct 2024 18:17:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729621036; bh=69MTF+FDcDqGCmtUQUj1fxrLiwjJ7KwdB47gZ9JlPJI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mXHeViGCbfEl+dX3CLXe5RyitzGYKYERLNlTNfcYZUrh95yo8+KIACen6vMagiDU6 7TlX1XK43WZMl+m2D35pCM13wAzGF6PmtnH4uUi5o0XKPaDYci1n49Ow9vK2m7AkKD Vh+lJ6gc88Z4IsNY6ROyXugjI8gCyPb0of6FkFcgEPZ+AuGCYQznFZ5ehq+hrCaVaK ZPH14wo54eLmL2Cl2lwsUU4UYsnpvi6FlxuvRnOHi+6y01K7GR6ECAtGuZ+8CGguvZ wChG5OeFxOxj+/yj8LH/7OJGy/jDpe0xK0Oyy75h68NJt18x8NKzBhTVRL+//Cfw9M e+UBRnaAh2HXw== 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 3/3] kbuild: deb-pkg: add pkg.linux-upstream.nokerneldbg build profile Date: Wed, 23 Oct 2024 03:16:59 +0900 Message-ID: <20241022181703.1710116-3-masahiroy@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241022181703.1710116-1-masahiroy@kernel.org> References: <20241022181703.1710116-1-masahiroy@kernel.org> Precedence: bulk X-Mailing-List: linux-kbuild@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The Debian kernel supports the pkg.linux.nokerneldbg build profile. The debug package tends to be huge, and you may not want to build it even when CONFIG_DEBUG_INFO is enabled. This commit introduces a similar profile for the upstream kernel. Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier --- scripts/package/mkdebian | 1 + 1 file changed, 1 insertion(+) diff --git a/scripts/package/mkdebian b/scripts/package/mkdebian index 93eb50356ddb..fc3b7fa709fc 100755 --- a/scripts/package/mkdebian +++ b/scripts/package/mkdebian @@ -245,6 +245,7 @@ cat <> debian/control Package: linux-image-$version-dbg Section: debug Architecture: $debarch +Build-Profiles: Description: Linux kernel debugging symbols for $version This package will come in handy if you need to debug the kernel. It provides all the necessary debug symbols for the kernel and its modules.