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 simplified 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@xxxxxxxxxxxxxx> Reviewed-by: Nathan Chancellor <nathan@xxxxxxxxxx> Tested-by: Nathan Chancellor <nathan@xxxxxxxxxx> Reviewed-by: Nicolas Schier <nicolas@xxxxxxxxx> --- Changes in v6: - Drop reference to srctree/Makefile - Drop $(realpath $(srctree)) - Make use of the fact that $(objtree) is always "." - Align coding style to kernel and drop vim config line - Drop indirection through `$MAKE run-command` - Unify shell variable syntax to "${var}" - Add explanations to custom variables - Add makedepends - Link to v5: https://lore.kernel.org/r/20240714-kbuild-pacman-pkg-v5-1-0598460bc918@xxxxxxxxxxxxxx Changes in v5: - Rebase onto kbuild/for-next - Use new path to build-version script (from kbuild/for-next) - Ensure submake jobserver delegation works - Simplify $modulesdir/pkgbase file creation - Add Reviewed-by from Nicolas - Link to v4: https://lore.kernel.org/r/20240710-kbuild-pacman-pkg-v4-1-507bb5b79b2a@xxxxxxxxxxxxxx Changes in v4: - Update MRPROPER_FILES - Unify shell variable syntax - Link to v3: https://lore.kernel.org/r/20240708-kbuild-pacman-pkg-v3-1-885df3cbc740@xxxxxxxxxxxxxx Changes in v3: - Enforce matching architectures for installation - Add Reviewed-by and Tested-by from Nathan - Link to v2: https://lore.kernel.org/r/20240706-kbuild-pacman-pkg-v2-1-613422a03a7a@xxxxxxxxxxxxxx Changes in v2: - Replace ${MAKE} with $MAKE for consistency with other variables - Use $MAKE for "-s image_name" - Avoid permission warnings from build directory - Clarify reason for /build symlink removal - Install System.map and config - Install dtbs where available - Allow cross-build through arch=any - Sort Contributor/Maintainer chronologically - Disable some unneeded makepkg options - Use DEPMOD=true for consistency with rpm-package - Link to v1: https://lore.kernel.org/r/20240704-kbuild-pacman-pkg-v1-1-ac2f63f5fa7b@xxxxxxxxxxxxxx --- .gitignore | 6 +++ Makefile | 2 +- scripts/Makefile.package | 14 +++++++ scripts/package/PKGBUILD | 99 ++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 120 insertions(+), 1 deletion(-) diff --git a/.gitignore b/.gitignore index c59dc60ba62e..7902adf4f7f1 100644 --- a/.gitignore +++ b/.gitignore @@ -92,6 +92,12 @@ modules.order # /tar-install/ +# +# pacman files (make pacman-pkg) +# +/PKGBUILD +/pacman/ + # # We don't want to ignore the following even if they are dot-files # diff --git a/Makefile b/Makefile index 7372ea45ed3f..768d3dc107f8 100644 --- a/Makefile +++ b/Makefile @@ -1481,7 +1481,7 @@ CLEAN_FILES += vmlinux.symvers modules-only.symvers \ # Directories & files removed with 'make mrproper' MRPROPER_FILES += include/config include/generated \ arch/$(SRCARCH)/include/generated .objdiff \ - debian snap tar-install \ + debian snap tar-install PKGBUILD pacman \ .config .config.old .version \ Module.symvers \ certs/signing_key.pem \ diff --git a/scripts/Makefile.package b/scripts/Makefile.package index bf016af8bf8a..0aaa0832279c 100644 --- a/scripts/Makefile.package +++ b/scripts/Makefile.package @@ -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 $(objtree))" \ + BUILDDIR=pacman \ + CARCH="$(UTS_MACHINE)" \ + KBUILD_MAKEFLAGS="$(MAKEFLAGS)" \ + KBUILD_REVISION="$(shell $(srctree)/scripts/build-version)" \ + makepkg + # dir-pkg tar*-pkg - tarball targets # --------------------------------------------------------------------------- @@ -221,6 +234,7 @@ help: @echo ' bindeb-pkg - Build only the binary kernel deb package' @echo ' snap-pkg - Build only the binary kernel snap package' @echo ' (will connect to external hosts)' + @echo ' pacman-pkg - Build only the binary kernel pacman package' @echo ' dir-pkg - Build the kernel as a plain directory structure' @echo ' tar-pkg - Build the kernel as an uncompressed tarball' @echo ' targz-pkg - Build the kernel as a gzip compressed tarball' diff --git a/scripts/package/PKGBUILD b/scripts/package/PKGBUILD new file mode 100644 index 000000000000..eb3957fad915 --- /dev/null +++ b/scripts/package/PKGBUILD @@ -0,0 +1,99 @@ +# SPDX-License-Identifier: GPL-2.0-only +# Maintainer: Thomas Weißschuh <linux@xxxxxxxxxxxxxx> +# Contributor: Jan Alexander Steffens (heftig) <heftig@xxxxxxxxxxxxx> + +pkgbase=linux-upstream +pkgname=("${pkgbase}" "${pkgbase}-headers" "${pkgbase}-api-headers") +pkgver="${KERNELRELEASE//-/_}" +# The PKGBUILD is evaluated multiple times. +# Running scripts/build-version from here would introduce inconsistencies. +pkgrel="${KBUILD_REVISION}" +pkgdesc='Linux' +url='https://www.kernel.org/' +# Enable flexible cross-compilation +arch=(${CARCH}) +license=(GPL-2.0-only) +makedepends=( + base-devel + bc + cpio + gettext + libelf + openssl + pahole + perl + python + rsync + tar +) +options=(!debug !strip !buildflags !makeflags) + +build() { + # MAKEFLAGS from makepkg.conf override the ones inherited from kbuild. + # Bypass this override with a custom variable. + export MAKEFLAGS="${KBUILD_MAKEFLAGS}" + cd "${objtree}" + + # makepkg does a "chmod a-srw", triggering warnings during kbuild + chmod 0755 "${pkgdirbase}" || true + + ${MAKE} +} + +package_linux-upstream() { + 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_linux-upstream-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/${pkgbase}" +} + +package_linux-upstream-api-headers() { + pkgdesc="Kernel headers sanitized for use in userspace" + provides=(linux-api-headers) + conflicts=(linux-api-headers) + + export MAKEFLAGS="${KBUILD_MAKEFLAGS}" + cd "${objtree}" + + ${MAKE} headers_install INSTALL_HDR_PATH="${pkgdir}/usr" +} --- base-commit: 818e9c998b04d6c69a510d5255a93d0e3b8d4993 change-id: 20240625-kbuild-pacman-pkg-b4f87e19d036 Best regards, -- Thomas Weißschuh <linux@xxxxxxxxxxxxxx>