kbuild: add script and target to generate pacman package
pacman is the package manager used by Arch Linux and its derivates. Creating native packages from the kernel tree has multiple advantages: * The package triggers the correct hooks for initramfs generation and bootloader configuration * Uninstallation is complete and also invokes the relevant hooks * New UAPI headers can be installed without any manual bookkeeping The PKGBUILD file is a modified version of the one used for the downstream Arch Linux "linux" package. Extra steps that should not be necessary for a development kernel have been removed and an UAPI header package has been added. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Tested-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Thomas Weißschuh
Masahiro Yamada
parent
3554a45297
commit
c8578539de
6
.gitignore
vendored
6
.gitignore
vendored
@ -92,6 +92,12 @@ modules.order
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#
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/tar-install/
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#
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# pacman files (make pacman-pkg)
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#
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/PKGBUILD
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/pacman/
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#
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# We don't want to ignore the following even if they are dot-files
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#
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@ -11998,6 +11998,13 @@ F: include/uapi/linux/nfsd/
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F: include/uapi/linux/sunrpc/
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F: net/sunrpc/
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KERNEL PACMAN PACKAGING (in addition to generic KERNEL BUILD)
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M: Thomas Weißschuh <linux@weissschuh.net>
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R: Christian Heusel <christian@heusel.eu>
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R: Nathan Chancellor <nathan@kernel.org>
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S: Maintained
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F: scripts/package/PKGBUILD
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KERNEL REGRESSIONS
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M: Thorsten Leemhuis <linux@leemhuis.info>
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L: regressions@lists.linux.dev
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2
Makefile
2
Makefile
@ -1489,7 +1489,7 @@ CLEAN_FILES += vmlinux.symvers modules-only.symvers \
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# Directories & files removed with 'make mrproper'
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MRPROPER_FILES += include/config include/generated \
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arch/$(SRCARCH)/include/generated .objdiff \
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debian snap tar-install \
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debian snap tar-install PKGBUILD pacman \
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.config .config.old .version \
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Module.symvers \
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certs/signing_key.pem \
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@ -141,6 +141,19 @@ snap-pkg:
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cd $(objtree)/snap && \
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snapcraft --target-arch=$(UTS_MACHINE)
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# pacman-pkg
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# ---------------------------------------------------------------------------
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PHONY += pacman-pkg
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pacman-pkg:
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@ln -srf $(srctree)/scripts/package/PKGBUILD $(objtree)/PKGBUILD
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+objtree="$(realpath $(objtree))" \
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BUILDDIR="$(realpath $(objtree))/pacman" \
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CARCH="$(UTS_MACHINE)" \
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KBUILD_MAKEFLAGS="$(MAKEFLAGS)" \
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KBUILD_REVISION="$(shell $(srctree)/scripts/build-version)" \
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makepkg $(MAKEPKGOPTS)
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# dir-pkg tar*-pkg - tarball targets
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# ---------------------------------------------------------------------------
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@ -221,6 +234,7 @@ help:
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@echo ' bindeb-pkg - Build only the binary kernel deb package'
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@echo ' snap-pkg - Build only the binary kernel snap package'
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@echo ' (will connect to external hosts)'
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@echo ' pacman-pkg - Build only the binary kernel pacman package'
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@echo ' dir-pkg - Build the kernel as a plain directory structure'
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@echo ' tar-pkg - Build the kernel as an uncompressed tarball'
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@echo ' targz-pkg - Build the kernel as a gzip compressed tarball'
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108
scripts/package/PKGBUILD
Normal file
108
scripts/package/PKGBUILD
Normal file
@ -0,0 +1,108 @@
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# SPDX-License-Identifier: GPL-2.0-only
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# Maintainer: Thomas Weißschuh <linux@weissschuh.net>
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# Contributor: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
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pkgbase=${PACMAN_PKGBASE:-linux-upstream}
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pkgname=("${pkgbase}" "${pkgbase}-api-headers")
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if grep -q CONFIG_MODULES=y include/config/auto.conf; then
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pkgname+=("${pkgbase}-headers")
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fi
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pkgver="${KERNELRELEASE//-/_}"
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# The PKGBUILD is evaluated multiple times.
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# Running scripts/build-version from here would introduce inconsistencies.
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pkgrel="${KBUILD_REVISION}"
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pkgdesc='Upstream Linux'
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url='https://www.kernel.org/'
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# Enable flexible cross-compilation
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arch=(${CARCH})
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license=(GPL-2.0-only)
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makedepends=(
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bc
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bison
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cpio
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flex
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gettext
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kmod
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libelf
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openssl
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pahole
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perl
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python
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rsync
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tar
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)
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options=(!debug !strip !buildflags !makeflags)
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build() {
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# MAKEFLAGS from makepkg.conf override the ones inherited from kbuild.
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# Bypass this override with a custom variable.
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export MAKEFLAGS="${KBUILD_MAKEFLAGS}"
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cd "${objtree}"
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${MAKE} KERNELRELEASE="${KERNELRELEASE}" KBUILD_BUILD_VERSION="${pkgrel}"
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}
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_package() {
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pkgdesc="The ${pkgdesc} kernel and modules"
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export MAKEFLAGS="${KBUILD_MAKEFLAGS}"
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cd "${objtree}"
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local modulesdir="${pkgdir}/usr/${MODLIB}"
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echo "Installing boot image..."
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# systemd expects to find the kernel here to allow hibernation
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# https://github.com/systemd/systemd/commit/edda44605f06a41fb86b7ab8128dcf99161d2344
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install -Dm644 "$(${MAKE} -s image_name)" "${modulesdir}/vmlinuz"
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# Used by mkinitcpio to name the kernel
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echo "${pkgbase}" > "${modulesdir}/pkgbase"
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echo "Installing modules..."
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${MAKE} INSTALL_MOD_PATH="${pkgdir}/usr" INSTALL_MOD_STRIP=1 \
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DEPMOD=true modules_install
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if [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then
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echo "Installing dtbs..."
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${MAKE} INSTALL_DTBS_PATH="${modulesdir}/dtb" dtbs_install
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fi
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# remove build link, will be part of -headers package
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rm -f "${modulesdir}/build"
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}
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_package-headers() {
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pkgdesc="Headers and scripts for building modules for the ${pkgdesc} kernel"
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export MAKEFLAGS="${KBUILD_MAKEFLAGS}"
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cd "${objtree}"
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local builddir="${pkgdir}/usr/${MODLIB}/build"
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echo "Installing build files..."
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"${srctree}/scripts/package/install-extmod-build" "${builddir}"
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echo "Installing System.map and config..."
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cp System.map "${builddir}/System.map"
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cp .config "${builddir}/.config"
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echo "Adding symlink..."
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mkdir -p "${pkgdir}/usr/src"
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ln -sr "${builddir}" "${pkgdir}/usr/src/${pkgbase}"
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}
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_package-api-headers() {
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pkgdesc="Kernel headers sanitized for use in userspace"
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provides=(linux-api-headers)
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conflicts=(linux-api-headers)
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export MAKEFLAGS="${KBUILD_MAKEFLAGS}"
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cd "${objtree}"
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${MAKE} headers_install INSTALL_HDR_PATH="${pkgdir}/usr"
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}
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for _p in "${pkgname[@]}"; do
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eval "package_$_p() {
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$(declare -f "_package${_p#$pkgbase}")
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_package${_p#$pkgbase}
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}"
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done
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