Commit c8578539 authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Masahiro Yamada
Browse files

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: default avatarThomas Weißschuh <linux@weissschuh.net>
Reviewed-by: default avatarNathan Chancellor <nathan@kernel.org>
Tested-by: default avatarNathan Chancellor <nathan@kernel.org>
Signed-off-by: default avatarMasahiro Yamada <masahiroy@kernel.org>
parent 3554a452

.gitignore

+6 −0
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@@ -92,6 +92,12 @@ modules.order 
#

/tar-install/



#

# pacman files (make pacman-pkg)

#

/PKGBUILD

/pacman/



#

# We don't want to ignore the following even if they are dot-files

#

MAINTAINERS

+7 −0
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@@ -11998,6 +11998,13 @@ F: include/uapi/linux/nfsd/ 
F:	include/uapi/linux/sunrpc/

F:	net/sunrpc/









KERNEL PACMAN PACKAGING (in addition to generic KERNEL BUILD)









M:	Thomas Weißschuh <linux@weissschuh.net>









R:	Christian Heusel <christian@heusel.eu>









R:	Nathan Chancellor <nathan@kernel.org>









S:	Maintained









F:	scripts/package/PKGBUILD

















KERNEL REGRESSIONS









M:	Thorsten Leemhuis <linux@leemhuis.info>









L:	regressions@lists.linux.dev
































Makefile



+1
−1






























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@@ -1489,7 +1489,7 @@ CLEAN_FILES += vmlinux.symvers modules-only.symvers \







# Directories & files removed with 'make mrproper'









MRPROPER_FILES += include/config include/generated          \









		  arch/$(SRCARCH)/include/generated .objdiff \









		  debian snap tar-install \









		  debian snap tar-install PKGBUILD pacman \









		  .config .config.old .version \









		  Module.symvers \









		  certs/signing_key.pem \
































scripts/Makefile.package



+14
−0






























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@@ -141,6 +141,19 @@ snap-pkg:







	cd $(objtree)/snap && \









	snapcraft --target-arch=$(UTS_MACHINE)



















# pacman-pkg









# ---------------------------------------------------------------------------



















PHONY += pacman-pkg









pacman-pkg:









	@ln -srf $(srctree)/scripts/package/PKGBUILD $(objtree)/PKGBUILD









	+objtree="$(realpath $(objtree))" \









		BUILDDIR="$(realpath $(objtree))/pacman" \









		CARCH="$(UTS_MACHINE)" \









		KBUILD_MAKEFLAGS="$(MAKEFLAGS)" \









		KBUILD_REVISION="$(shell $(srctree)/scripts/build-version)" \









		makepkg $(MAKEPKGOPTS)



















# dir-pkg tar*-pkg - tarball targets









# ---------------------------------------------------------------------------


















@@ -221,6 +234,7 @@ help:







	@echo '  bindeb-pkg          - Build only the binary kernel deb package'









	@echo '  snap-pkg            - Build only the binary kernel snap package'









	@echo '                        (will connect to external hosts)'









	@echo '  pacman-pkg          - Build only the binary kernel pacman package'









	@echo '  dir-pkg             - Build the kernel as a plain directory structure'









	@echo '  tar-pkg             - Build the kernel as an uncompressed tarball'









	@echo '  targz-pkg           - Build the kernel as a gzip compressed tarball'
































scripts/package/PKGBUILD
0 → 100644



+108
−0






























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# SPDX-License-Identifier: GPL-2.0-only









# Maintainer: Thomas Weißschuh <linux@weissschuh.net>









# Contributor: Jan Alexander Steffens (heftig) <heftig@archlinux.org>



















pkgbase=${PACMAN_PKGBASE:-linux-upstream}









pkgname=("${pkgbase}" "${pkgbase}-api-headers")









if grep -q CONFIG_MODULES=y include/config/auto.conf; then









	pkgname+=("${pkgbase}-headers")









fi









pkgver="${KERNELRELEASE//-/_}"









# The PKGBUILD is evaluated multiple times.









# Running scripts/build-version from here would introduce inconsistencies.









pkgrel="${KBUILD_REVISION}"









pkgdesc='Upstream Linux'









url='https://www.kernel.org/'









# Enable flexible cross-compilation









arch=(${CARCH})









license=(GPL-2.0-only)









makedepends=(









	bc









	bison









	cpio









	flex









	gettext









	kmod









	libelf









	openssl









	pahole









	perl









	python









	rsync









	tar









)









options=(!debug !strip !buildflags !makeflags)



















build() {









	# MAKEFLAGS from makepkg.conf override the ones inherited from kbuild.









	# Bypass this override with a custom variable.









	export MAKEFLAGS="${KBUILD_MAKEFLAGS}"









	cd "${objtree}"



















	${MAKE} KERNELRELEASE="${KERNELRELEASE}" KBUILD_BUILD_VERSION="${pkgrel}"









}



















_package() {









	pkgdesc="The ${pkgdesc} kernel and modules"



















	export MAKEFLAGS="${KBUILD_MAKEFLAGS}"









	cd "${objtree}"









	local modulesdir="${pkgdir}/usr/${MODLIB}"



















	echo "Installing boot image..."









	# systemd expects to find the kernel here to allow hibernation









	# https://github.com/systemd/systemd/commit/edda44605f06a41fb86b7ab8128dcf99161d2344









	install -Dm644 "$(${MAKE} -s image_name)" "${modulesdir}/vmlinuz"



















	# Used by mkinitcpio to name the kernel









	echo "${pkgbase}" > "${modulesdir}/pkgbase"



















	echo "Installing modules..."









	${MAKE} INSTALL_MOD_PATH="${pkgdir}/usr" INSTALL_MOD_STRIP=1 \









		DEPMOD=true modules_install



















	if [ -d "${srctree}/arch/${SRCARCH}/boot/dts" ]; then









		echo "Installing dtbs..."









		${MAKE} INSTALL_DTBS_PATH="${modulesdir}/dtb" dtbs_install









	fi



















	# remove build link, will be part of -headers package









	rm -f "${modulesdir}/build"









}



















_package-headers() {









	pkgdesc="Headers and scripts for building modules for the ${pkgdesc} kernel"



















	export MAKEFLAGS="${KBUILD_MAKEFLAGS}"









	cd "${objtree}"









	local builddir="${pkgdir}/usr/${MODLIB}/build"



















	echo "Installing build files..."









	"${srctree}/scripts/package/install-extmod-build" "${builddir}"



















	echo "Installing System.map and config..."









	cp System.map "${builddir}/System.map"









	cp .config "${builddir}/.config"



















	echo "Adding symlink..."









	mkdir -p "${pkgdir}/usr/src"









	ln -sr "${builddir}" "${pkgdir}/usr/src/${pkgbase}"









}



















_package-api-headers() {









	pkgdesc="Kernel headers sanitized for use in userspace"









	provides=(linux-api-headers)









	conflicts=(linux-api-headers)



















	export MAKEFLAGS="${KBUILD_MAKEFLAGS}"









	cd "${objtree}"



















	${MAKE} headers_install INSTALL_HDR_PATH="${pkgdir}/usr"









}



















for _p in "${pkgname[@]}"; do









	eval "package_$_p() {









		$(declare -f "_package${_p#$pkgbase}")









		_package${_p#$pkgbase}









	}"









done