similarity index 99%
copy from meta/recipes-kernel/linux/linux-custom.inc
copy to meta/classes/linux-kernel.bbclass
@@ -51,7 +51,7 @@ KERNEL_DEFCONFIG ??= ""
HEADERS_INSTALL_EXTRA ??= ""
# Add our template meta-data to the sources
-FILESPATH:append := ":${FILE_DIRNAME}/files"
+FILESPATH:append = ":${LAYERDIR_core}/recipes-kernel/linux/files"
SRC_URI += "file://debian"
# Variables and files that make our templates
@@ -1,318 +1,13 @@
-# Custom kernel build
+# Transitional include for linux-kernel.bbclass
#
# This software is a part of ISAR.
-# Copyright (c) Siemens AG, 2022
-# Copyright (c) Mentor Graphics, a Siemens business, 2022
+# Copyright (c) Siemens AG, 2025
#
# SPDX-License-Identifier: MIT
-# Settings that would typically be done from the custom kernel recipe
-# -------------------------------------------------------------------
+inherit linux-kernel
-CHANGELOG_V = "${PV}+${PR}"
-DESCRIPTION ?= "Custom kernel"
-MAINTAINER ?= "isar-users <isar-users@googlegroups.com>"
-DISTRIBUTOR ?= "ISAR"
-
-# pinned due to known or possible issues with compat 12
-DEBIAN_COMPAT:buster = "10"
-
-KBUILD_DEPENDS ?= "build-essential:native, \
- libelf-dev:native, \
- libncurses-dev:native, \
- libssl-dev:native, \
- bc, \
- bison, \
- cpio, \
- dwarves, \
- flex, \
- git, \
- kmod, \
- linux-image-${KERNEL_NAME_PROVIDED}:${DISTRO_ARCH} <kbuild !kernel>, \
- rsync,"
-
-KERNEL_DEBIAN_DEPENDS ?= "initramfs-tools | linux-initramfs-tool, \
- kmod, \
- linux-base (>= 4.3~),"
-
-KERNEL_HEADERS_DEBIAN_DEPENDS ?= ""
-
-KERNEL_LIBC_DEV_ARCH_ALL = "0"
-KERNEL_LIBC_DEV_ARCH_ALL:trixie = "1"
-KERNEL_LIBC_DEV_DEPLOY ?= "0"
-
-# Settings that may be changed on a per distro, machine or layer basis
-# --------------------------------------------------------------------
-
-LINUX_VERSION_EXTENSION ?= ""
-
-KERNEL_DEFCONFIG ??= ""
-
-HEADERS_INSTALL_EXTRA ??= ""
-
-# Add our template meta-data to the sources
-FILESPATH:append := ":${FILE_DIRNAME}/files"
-SRC_URI += "file://debian"
-
-# Variables and files that make our templates
-# -------------------------------------------
-
-TEMPLATE_FILES += " \
- debian/control.tmpl \
- debian/isar/build.tmpl \
- debian/isar/clean.tmpl \
- debian/isar/common.tmpl \
- debian/isar/configure.tmpl \
- debian/isar/install.tmpl \
- debian/isar/version.cfg.tmpl \
- debian/linux-image.postinst.tmpl \
- debian/linux-image.postrm.tmpl \
- debian/linux-image.preinst.tmpl \
- debian/linux-image.prerm.tmpl \
- debian/rules.tmpl \
-"
-
-TEMPLATE_VARS += " \
- KBUILD_DEPENDS \
- KERNEL_ARCH \
- KERNEL_DEBIAN_DEPENDS \
- KERNEL_BUILD_DIR \
- KERNEL_FILE \
- KERNEL_HEADERS_DEBIAN_DEPENDS \
- KERNEL_LIBC_DEV_ARCH \
- LINUX_VERSION_EXTENSION \
- KERNEL_NAME_PROVIDED \
- KERNEL_CONFIG_FRAGMENTS \
- KCFLAGS \
- KAFLAGS \
- DISTRIBUTOR \
- KERNEL_EXTRA_BUILDARGS \
- HEADERS_INSTALL_EXTRA \
- ISAR_ENABLE_COMPAT_ARCH \
- COMPAT_DISTRO_ARCH \
- DEBIAN_COMPAT \
-"
-
-inherit dpkg
-inherit template
-inherit kbuildtarget
-
-# Add custom cflags to the kernel build
-KCFLAGS ?= "-fdebug-prefix-map=${CURDIR}=."
-KAFLAGS ?= "-fdebug-prefix-map=${CURDIR}=."
-
-# Add extra arguments to the kernel build
-KERNEL_EXTRA_BUILDARGS ??= ""
-
-# Derive name of the kernel packages from the name of this recipe
-KERNEL_NAME_PROVIDED ?= "${@ d.getVar('BPN').partition('linux-')[2]}"
-
-# Determine cross-profile override
-python() {
- if d.getVar("DISTRO_ARCH") != d.getVar("HOST_ARCH") and bb.utils.to_boolean(d.getVar("ISAR_CROSS_COMPILE")) and "class-native" not in d.getVar("OVERRIDES").split(":"):
- d.appendVar("OVERRIDES", ":cross-profile")
-}
-
-# Default profiles and provides
-BUILD_PROFILES = "kernel kbuild"
-
-# We only offer the -kbuildtarget variant when actually cross compiling
-BBCLASSEXTEND:append:cross-profile = " kbuildtarget"
-
-# When cross-profile is active:
-# build only kernel (including config) with the default variant of the recipe
-BUILD_PROFILES:cross-profile = "kernel"
-
-# -native: kbuild package for host
-BUILD_PROFILES:class-native = "kbuild"
-RECIPE_PROVIDES:class-native = " \
- linux-headers-${KERNEL_NAME_PROVIDED} \
- linux-kbuild-${KERNEL_NAME_PROVIDED}"
-# Use pseudo target to pull in the base variant of the recipe.
-# Will be auto-extended with -native by multiarch.bbclass.
-# Using DEPENDS instead of RDEPENDS to ensure creation of kernel including
-# pregenerated kernel config before host specific linux-kbuild package build
-DEPENDS:class-native += "${BPN}-pseudo"
-
-# -kbuildtarget: kbuild package for target, enforcing non-cross-build
-BUILD_PROFILES:class-kbuildtarget = "kbuild"
-RECIPE_PROVIDES:class-kbuildtarget = " \
- linux-headers-${KERNEL_NAME_PROVIDED} \
- linux-kbuild-${KERNEL_NAME_PROVIDED}"
-# Using DEPENDS instead of RDEPENDS to ensure creation of kernel including
-# pregenerated kernel config before target specific linux-kbuild package build
-DEPENDS:class-kbuildtarget = "${BPN}"
-ISAR_CROSS_COMPILE:class-kbuildtarget = "0"
-
-# Make bitbake know we will be producing linux-image and linux-headers packages
-# Also make it know about other packages from control
-RECIPE_PROVIDES = " \
- linux-image-${KERNEL_NAME_PROVIDED} \
- linux-headers-${KERNEL_NAME_PROVIDED} \
- linux-libc-dev \
- linux-libc-dev-${DISTRO_ARCH}-cross \
- linux-image-${KERNEL_NAME_PROVIDED}-dbg \
- linux-kbuild-${KERNEL_NAME_PROVIDED} \
- ${BPN}-pseudo-native \
-"
-# When cross-profile is active:
-# kbuild package is provided by -native or -kbuildtarget variant. Also headers
-# provisioning moves over to ensure those variants are pulled, although the
-# package itself is still built by the base recipe.
-RECIPE_PROVIDES:remove:cross-profile = " \
- linux-headers-${KERNEL_NAME_PROVIDED} \
- linux-kbuild-${KERNEL_NAME_PROVIDED}"
-
-# As the multiarch class will not append -compat to -pseudo-native, we end up
-# with two providers of it. Remove the wrong one.
-RECIPE_PROVIDES:remove:class-compat = "${BPN}-pseudo-native"
-
-# Append headers depends
-HEADERS_DEPENDS = ", linux-kbuild-${KERNEL_NAME_PROVIDED} | linux-kbuild-${KERNEL_NAME_PROVIDED}-${DISTRO_ARCH}-cross"
-KERNEL_HEADERS_DEBIAN_DEPENDS:append = "${HEADERS_DEPENDS}"
-
-# Append provides
-PROVIDES += "${RECIPE_PROVIDES}"
-
-# Append build profiles
-DEB_BUILD_PROFILES += "${BUILD_PROFILES}"
-
-def get_kernel_arch(d):
- distro_arch = d.getVar("DISTRO_ARCH")
- if distro_arch in ["amd64", "i386"]:
- kernel_arch = "x86"
- elif distro_arch == "arm64":
- kernel_arch = "arm64"
- elif distro_arch == "armhf":
- kernel_arch = "arm"
- elif distro_arch == "mipsel":
- kernel_arch = "mips"
- elif distro_arch == "riscv64":
- kernel_arch = "riscv"
- else:
- kernel_arch = ""
- return kernel_arch
-
-KERNEL_ARCH ??= "${@get_kernel_arch(d)}"
-
-# set KERNEL_FILE without depending on package arch used in bitbake.conf
-KERNEL_FILE:forcevariable = "${@ 'vmlinux' if d.getVar('KERNEL_ARCH') in ['mipsel', 'riscv', 'arm64'] else 'vmlinuz'}"
-
-def config_fragments(d):
- fragments = []
- sources = d.getVar("SRC_URI").split()
- for s in sources:
- _, _, local, _, _, parm = bb.fetch.decodeurl(s)
- apply = parm.get("apply")
- if apply == "no":
- continue
- base, ext = os.path.splitext(os.path.basename(local))
- if ext and ext in (".cfg"):
- fragments.append(local)
- return fragments
-
-def get_additional_build_profiles(d):
- profiles = d.getVar('BASE_DISTRO')
- if not bb.utils.to_boolean(d.getVar('KERNEL_LIBC_DEV_DEPLOY')):
- profiles += ' nolibcdev'
- elif bb.utils.to_boolean(d.getVar('KERNEL_LIBC_DEV_ARCH_ALL')):
- profiles += ' libcdev-arch-all'
- return profiles
-
-KERNEL_LIBC_DEV_ARCH = "${@ bb.utils.contains('DEB_BUILD_PROFILES', 'libcdev-arch-all', 'all\nMulti-Arch: foreign', 'any', d) }"
-DEB_BUILD_PROFILES += "${@get_additional_build_profiles(d)}"
-
-do_prepare_build:prepend() {
- # copy meta-data over to source tree
- rm -rf ${S}/debian
- cp -r ${WORKDIR}/debian ${S}/
-
- # remove templates from the source tree
- find ${S}/debian -name *.tmpl | xargs rm -f
-
- # rename install/remove hooks to match user-specified name for our linux-image package
- mv ${S}/debian/linux-image.postinst ${S}/debian/linux-image-${KERNEL_NAME_PROVIDED}.postinst
- mv ${S}/debian/linux-image.postrm ${S}/debian/linux-image-${KERNEL_NAME_PROVIDED}.postrm
- mv ${S}/debian/linux-image.preinst ${S}/debian/linux-image-${KERNEL_NAME_PROVIDED}.preinst
- mv ${S}/debian/linux-image.prerm ${S}/debian/linux-image-${KERNEL_NAME_PROVIDED}.prerm
-
- # produce a changelog for our kernel build
- deb_add_changelog
-
- # make sure user-specified directories do exist in ${S}
- if [ -n "${HEADERS_INSTALL_EXTRA}" ]; then
- for d in ${HEADERS_INSTALL_EXTRA}; do
- [ -d ${S}/${d} ] || {
- bbfatal "HEADERS_INSTALL_EXTRA: '${d}' not found in \${S}!"
- }
- done
- fi
-}
-
-# build directory for our "full" kernel build
-KERNEL_BUILD_DIR = "build-full"
-
-def get_kernel_config_target(d):
- kernel_defconfig = d.getVar('KERNEL_DEFCONFIG')
-
- config_target = kernel_defconfig
-
- if kernel_defconfig:
- workdir=d.getVar('WORKDIR')
- if os.path.isfile(workdir + "/" + kernel_defconfig):
- config_target = "olddefconfig"
- else:
- config_target = "defconfig KBUILD_DEFCONFIG=" + kernel_defconfig
- else:
- config_target = "defconfig"
-
- return config_target
-
-def get_kernel_config_fragments(d):
- src_frags = " ".join(config_fragments(d))
- out_frags = " ".join(map(lambda frag: 'debian/fragments/' + frag, config_fragments(d)))
-
- linux_version_extension = d.getVar('LINUX_VERSION_EXTENSION')
- if linux_version_extension:
- out_frags += " debian/isar/version.cfg"
-
- return out_frags
-
-KERNEL_CONFIG_FRAGMENTS = "${@get_kernel_config_fragments(d)}"
-
-dpkg_configure_kernel() {
- grep -q "KERNEL_CONFIG_TARGET=" ${S}/debian/isar/configure ||
- cat << EOF | sed -i '/^do_configure() {/ r /dev/stdin' ${S}/debian/isar/configure
- KERNEL_CONFIG_TARGET="${@get_kernel_config_target(d)}"
-EOF
-
- rm -rf ${S}/${KERNEL_BUILD_DIR} && mkdir -p ${S}/${KERNEL_BUILD_DIR}
- if [ -n "${KERNEL_DEFCONFIG}" ]; then
- if [ -e "${WORKDIR}/${KERNEL_DEFCONFIG}" ]; then
- cp ${WORKDIR}/${KERNEL_DEFCONFIG} ${S}/${KERNEL_BUILD_DIR}/.config
- fi
- fi
-
- # copy config fragments over to the kernel tree
- src_frags="${@ " ".join(config_fragments(d)) }"
- rm -rf ${S}/debian/fragments
- for frag in ${src_frags}; do
- basedir=$(dirname ${frag})
- mkdir -p ${S}/debian/fragments/${basedir}
- cp ${WORKDIR}/${frag} ${S}/debian/fragments/${basedir}/
- done
-}
-
-get_localversion_auto() {
- if grep -q "^CONFIG_LOCALVERSION_AUTO=y" ${S}/${KERNEL_BUILD_DIR}/.config; then
- cd ${S}
- if head=$(git rev-parse --verify --short HEAD 2>/dev/null); then
- echo "-g${head}" >${S}/.scmversion
- fi
- fi
-}
-
-do_dpkg_source:prepend() {
- dpkg_configure_kernel
- get_localversion_auto
+do_warn_custom_inc() {
+ bbwarn "Please migrate from \"require recipes-kernel/linux/linux-custom.inc\" to \"inherit linux-kernel\""
}
+addtask warn_custom_inc before do_unpack