inherit linux-kernel-base module_strip kernel-module-split PROVIDES += "virtual/kernel" DEPENDS += "virtual/${TARGET_PREFIX}binutils virtual/${TARGET_PREFIX}gcc kmod-native depmodwrapper-cross" # we include gcc above, we dont need virtual/libc INHIBIT_DEFAULT_DEPS = "1" KERNEL_IMAGETYPE ?= "zImage" INITRAMFS_IMAGE ?= "" INITRAMFS_TASK ?= "" INITRAMFS_IMAGE_BUNDLE ?= "" python __anonymous () { kerneltype = d.getVar('KERNEL_IMAGETYPE', True) or '' if kerneltype == 'uImage': depends = d.getVar("DEPENDS", True) depends = "%s u-boot-mkimage-native" % depends d.setVar("DEPENDS", depends) image = d.getVar('INITRAMFS_IMAGE', True) if image: d.appendVarFlag('do_bundle_initramfs', 'depends', ' ${INITRAMFS_IMAGE}:do_rootfs') # NOTE: setting INITRAMFS_TASK is for backward compatibility # The preferred method is to set INITRAMFS_IMAGE, because # this INITRAMFS_TASK has circular dependency problems # if the initramfs requires kernel modules image_task = d.getVar('INITRAMFS_TASK', True) if image_task: d.appendVarFlag('do_configure', 'depends', ' ${INITRAMFS_TASK}') } inherit kernel-arch deploy PACKAGES_DYNAMIC += "^kernel-module-.*" PACKAGES_DYNAMIC += "^kernel-image-.*" PACKAGES_DYNAMIC += "^kernel-firmware-.*" export OS = "${TARGET_OS}" export CROSS_COMPILE = "${TARGET_PREFIX}" KERNEL_PRIORITY ?= "${@int(d.getVar('PV',1).split('-')[0].split('+')[0].split('.')[0]) * 10000 + \ int(d.getVar('PV',1).split('-')[0].split('+')[0].split('.')[1]) * 100 + \ int(d.getVar('PV',1).split('-')[0].split('+')[0].split('.')[-1])}" KERNEL_RELEASE ?= "${KERNEL_VERSION}" # Where built kernel lies in the kernel tree KERNEL_OUTPUT ?= "arch/${ARCH}/boot/${KERNEL_IMAGETYPE}" KERNEL_IMAGEDEST = "boot" # # configuration # export CMDLINE_CONSOLE = "console=${@d.getVar("KERNEL_CONSOLE",1) or "ttyS0"}" KERNEL_VERSION = "${@get_kernelversion('${B}')}" KERNEL_LOCALVERSION ?= "" # kernels are generally machine specific PACKAGE_ARCH = "${MACHINE_ARCH}" # U-Boot support UBOOT_ENTRYPOINT ?= "20008000" UBOOT_LOADADDRESS ?= "${UBOOT_ENTRYPOINT}" # Some Linux kernel configurations need additional parameters on the command line KERNEL_EXTRA_ARGS ?= "" # For the kernel, we don't want the '-e MAKEFLAGS=' in EXTRA_OEMAKE. # We don't want to override kernel Makefile variables from the environment EXTRA_OEMAKE = "" KERNEL_ALT_IMAGETYPE ??= "" # Define where the kernel headers are installed on the target as well as where # they are staged. KERNEL_SRC_PATH = "/usr/src/kernel" KERNEL_IMAGETYPE_FOR_MAKE = "${@(lambda s: s[:-3] if s[-3:] == ".gz" else s)(d.getVar('KERNEL_IMAGETYPE', True))}" copy_initramfs() { echo "Copying initramfs into ./usr ..." # In case the directory is not created yet from the first pass compile: mkdir -p ${B}/usr # Find and use the first initramfs image archive type we find rm -f ${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.cpio for img in cpio.gz cpio.lzo cpio.lzma cpio.xz; do if [ -e "${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE}-${MACHINE}.$img" ]; then cp ${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE}-${MACHINE}.$img ${B}/usr/. case $img in *gz) echo "gzip decompressing image" gunzip -f ${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.$img break ;; *lzo) echo "lzo decompressing image" lzop -df ${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.$img break ;; *lzma) echo "lzma decompressing image" lzmash -df ${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.$img break ;; *xz) echo "xz decompressing image" xz -df ${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.$img break ;; esac fi done echo "Finished copy of initramfs into ./usr" } INITRAMFS_BASE_NAME = "${KERNEL_IMAGETYPE}-initramfs-${PV}-${PR}-${MACHINE}-${DATETIME}" INITRAMFS_BASE_NAME[vardepsexclude] = "DATETIME" do_bundle_initramfs () { if [ ! -z "${INITRAMFS_IMAGE}" -a x"${INITRAMFS_IMAGE_BUNDLE}" = x1 ]; then echo "Creating a kernel image with a bundled initramfs..." copy_initramfs if [ -e ${KERNEL_OUTPUT} ] ; then mv -f ${KERNEL_OUTPUT} ${KERNEL_OUTPUT}.bak fi use_alternate_initrd=CONFIG_INITRAMFS_SOURCE=${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.cpio kernel_do_compile mv -f ${KERNEL_OUTPUT} ${KERNEL_OUTPUT}.initramfs mv -f ${KERNEL_OUTPUT}.bak ${KERNEL_OUTPUT} # Update install area echo "There is kernel image bundled with initramfs: ${B}/${KERNEL_OUTPUT}.initramfs" install -m 0644 ${B}/${KERNEL_OUTPUT}.initramfs ${D}/boot/${KERNEL_IMAGETYPE}-initramfs-${MACHINE}.bin echo "${B}/${KERNEL_OUTPUT}.initramfs" cd ${B} # Update deploy directory if [ -e "${KERNEL_OUTPUT}.initramfs" ]; then echo "Copying deploy kernel-initramfs image and setting up links..." initramfs_base_name=${INITRAMFS_BASE_NAME} initramfs_symlink_name=${KERNEL_IMAGETYPE}-initramfs-${MACHINE} install -m 0644 ${KERNEL_OUTPUT}.initramfs ${DEPLOY_DIR_IMAGE}/${initramfs_base_name}.bin cd ${DEPLOY_DIR_IMAGE} ln -sf ${initramfs_base_name}.bin ${initramfs_symlink_name}.bin fi fi } do_bundle_initramfs[nostamp] = "1" python do_devshell_prepend () { os.environ["LDFLAGS"] = '' } addtask bundle_initramfs after do_compile before do_build kernel_do_compile() { unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE # The $use_alternate_initrd is only set from # do_bundle_initramfs() This variable is specifically for the # case where we are making a second pass at the kernel # compilation and we want to force the kernel build to use a # different initramfs image. The way to do that in the kernel # is to specify: # make ...args... CONFIG_INITRAMFS_SOURCE=some_other_initramfs.cpio if [ "$use_alternate_initrd" = "" ] && [ "${INITRAMFS_TASK}" != "" ] ; then # The old style way of copying an prebuilt image and building it # is turned on via INTIRAMFS_TASK != "" copy_initramfs use_alternate_initrd=CONFIG_INITRAMFS_SOURCE=${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.cpio fi oe_runmake ${KERNEL_IMAGETYPE_FOR_MAKE} ${KERNEL_ALT_IMAGETYPE} CC="${KERNEL_CC}" LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS} $use_alternate_initrd if test "${KERNEL_IMAGETYPE_FOR_MAKE}.gz" = "${KERNEL_IMAGETYPE}"; then gzip -9c < "${KERNEL_IMAGETYPE_FOR_MAKE}" > "${KERNEL_OUTPUT}" fi } do_compile_kernelmodules() { unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE if (grep -q -i -e '^CONFIG_MODULES=y$' .config); then oe_runmake ${PARALLEL_MAKE} modules CC="${KERNEL_CC}" LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS} else bbnote "no modules to compile" fi } addtask compile_kernelmodules after do_compile before do_strip kernel_do_install() { # # First install the modules # unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE if (grep -q -i -e '^CONFIG_MODULES=y$' .config); then oe_runmake DEPMOD=echo INSTALL_MOD_PATH="${D}" modules_install rm "${D}/lib/modules/${KERNEL_VERSION}/build" rm "${D}/lib/modules/${KERNEL_VERSION}/source" else bbnote "no modules to install" fi # # Install various kernel output (zImage, map file, config, module support files) # install -d ${D}/${KERNEL_IMAGEDEST} install -d ${D}/boot install -m 0644 ${KERNEL_OUTPUT} ${D}/${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE}-${KERNEL_VERSION} install -m 0644 System.map ${D}/boot/System.map-${KERNEL_VERSION} install -m 0644 .config ${D}/boot/config-${KERNEL_VERSION} install -m 0644 vmlinux ${D}/boot/vmlinux-${KERNEL_VERSION} [ -e Module.symvers ] && install -m 0644 Module.symvers ${D}/boot/Module.symvers-${KERNEL_VERSION} install -d ${D}${sysconfdir}/modules-load.d install -d ${D}${sysconfdir}/modprobe.d # # Support for external module building - create a minimal copy of the # kernel source tree. # kerneldir=${D}${KERNEL_SRC_PATH} install -d $kerneldir # # Store the kernel version in sysroots for module-base.bbclass # echo "${KERNEL_VERSION}" > $kerneldir/kernel-abiversion # # Store kernel image name to allow use during image generation # echo "${KERNEL_IMAGE_BASE_NAME}" >$kerneldir/kernel-image-name # # Copy the entire source tree. In case an external build directory is # used, copy the build directory over first, then copy over the source # dir. This ensures the original Makefiles are used and not the # redirecting Makefiles in the build directory. # # work and sysroots can be on different partitions, so we can't rely on # hardlinking, unfortunately. # find . -depth -not -name "*.cmd" -not -name "*.o" -not -path "./.*" -print0 | cpio --null -pdu $kerneldir cp .config $kerneldir if [ "${S}" != "${B}" ]; then pwd="$PWD" cd "${S}" find . -depth -not -path "./.*" -print0 | cpio --null -pdu $kerneldir cd "$pwd" fi install -m 0644 ${KERNEL_OUTPUT} $kerneldir/${KERNEL_IMAGETYPE} install -m 0644 System.map $kerneldir/System.map-${KERNEL_VERSION} # # Clean and remove files not needed for building modules. # Some distributions go through a lot more trouble to strip out # unecessary headers, for now, we just prune the obvious bits. # # We don't want to leave host-arch binaries in /sysroots, so # we clean the scripts dir while leaving the generated config # and include files. # oe_runmake -C $kerneldir CC="${KERNEL_CC}" LD="${KERNEL_LD}" clean make -C $kerneldir _mrproper_scripts find $kerneldir -path $kerneldir/lib -prune -o -path $kerneldir/tools -prune -o -path $kerneldir/scripts -prune -o -name "*.[csS]" -exec rm '{}' \; find $kerneldir/Documentation -name "*.txt" -exec rm '{}' \; # As of Linux kernel version 3.0.1, the clean target removes # arch/powerpc/lib/crtsavres.o which is present in # KBUILD_LDFLAGS_MODULE, making it required to build external modules. if [ ${ARCH} = "powerpc" ]; then cp arch/powerpc/lib/crtsavres.o $kerneldir/arch/powerpc/lib/crtsavres.o fi # Necessary for building modules like compat-wireless. if [ -f include/generated/bounds.h ]; then cp include/generated/bounds.h $kerneldir/include/generated/bounds.h fi if [ -d arch/${ARCH}/include/generated ]; then mkdir -p $kerneldir/arch/${ARCH}/include/generated/ cp -fR arch/${ARCH}/include/generated/* $kerneldir/arch/${ARCH}/include/generated/ fi # Remove the following binaries which cause strip or arch QA errors # during do_package for cross-compiled platforms bin_files="arch/powerpc/boot/addnote arch/powerpc/boot/hack-coff \ arch/powerpc/boot/mktree scripts/kconfig/zconf.tab.o \ scripts/kconfig/conf.o scripts/kconfig/kxgettext.o" for entry in $bin_files; do rm -f $kerneldir/$entry done # kernels <2.6.30 don't have $kerneldir/tools directory so we check if it exists before calling sed if [ -f $kerneldir/tools/perf/Makefile ]; then # Fix SLANG_INC for slang.h sed -i 's#-I/usr/include/slang#-I=/usr/include/slang#g' $kerneldir/tools/perf/Makefile fi } do_install[prefuncs] += "package_get_auto_pr" SSTATEPOSTINSTFUNCS += "kernelscripts_sstate_postinst" kernelscripts_sstate_postinst () { if [ "${BB_CURRENTTASK}" = "populate_sysroot" -o "${BB_CURRENTTASK}" = "populate_sysroot_setscene" ]; then ( cd ${STAGING_KERNEL_DIR} oe_runmake scripts ) fi } sysroot_stage_all_append() { sysroot_stage_dir ${D}${KERNEL_SRC_PATH} ${SYSROOT_DESTDIR}${KERNEL_SRC_PATH} } kernel_do_configure() { # fixes extra + in /lib/modules/2.6.37+ # $ scripts/setlocalversion . => + # $ make kernelversion => 2.6.37 # $ make kernelrelease => 2.6.37+ touch ${B}/.scmversion ${S}/.scmversion # Copy defconfig to .config if .config does not exist. This allows # recipes to manage the .config themselves in do_configure_prepend(). if [ -f "${WORKDIR}/defconfig" ] && [ ! -f "${B}/.config" ]; then cp "${WORKDIR}/defconfig" "${B}/.config" fi yes '' | oe_runmake oldconfig } do_savedefconfig() { oe_runmake savedefconfig } do_savedefconfig[nostamp] = "1" addtask savedefconfig after do_configure inherit cml1 EXPORT_FUNCTIONS do_compile do_install do_configure # kernel-base becomes kernel-${KERNEL_VERSION} # kernel-image becomes kernel-image-${KERNEL_VERISON} PACKAGES = "kernel kernel-base kernel-vmlinux kernel-image kernel-dev kernel-modules" FILES_${PN} = "" FILES_kernel-base = "/lib/modules/${KERNEL_VERSION}/modules.order /lib/modules/${KERNEL_VERSION}/modules.builtin" FILES_kernel-image = "/boot/${KERNEL_IMAGETYPE}*" FILES_kernel-dev = "/boot/System.map* /boot/Module.symvers* /boot/config* ${KERNEL_SRC_PATH}" FILES_kernel-vmlinux = "/boot/vmlinux*" FILES_kernel-modules = "" RDEPENDS_kernel = "kernel-base" # Allow machines to override this dependency if kernel image files are # not wanted in images as standard RDEPENDS_kernel-base ?= "kernel-image" PKG_kernel-image = "kernel-image-${@legitimize_package_name('${KERNEL_VERSION}')}" PKG_kernel-base = "kernel-${@legitimize_package_name('${KERNEL_VERSION}')}" RPROVIDES_kernel-base += "kernel-${KERNEL_VERSION}" ALLOW_EMPTY_kernel = "1" ALLOW_EMPTY_kernel-base = "1" ALLOW_EMPTY_kernel-image = "1" ALLOW_EMPTY_kernel-modules = "1" DESCRIPTION_kernel-modules = "Kernel modules meta package" pkg_postinst_kernel-image () { update-alternatives --install /${KERNEL_IMAGEDEST}/${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE}-${KERNEL_VERSION} ${KERNEL_PRIORITY} || true if [ ! -e "$D/lib/modules/${KERNEL_VERSION}" ]; then mkdir -p $D/lib/modules/${KERNEL_VERSION} fi if [ -n "$D" ]; then depmodwrapper -a -b $D ${KERNEL_VERSION} else depmod -a ${KERNEL_VERSION} fi } pkg_postrm_kernel-image () { update-alternatives --remove ${KERNEL_IMAGETYPE} ${KERNEL_IMAGETYPE}-${KERNEL_VERSION} || true } PACKAGESPLITFUNCS_prepend = "split_kernel_packages " python split_kernel_packages () { do_split_packages(d, root='/lib/firmware', file_regex='^(.*)\.bin$', output_pattern='kernel-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='') do_split_packages(d, root='/lib/firmware', file_regex='^(.*)\.fw$', output_pattern='kernel-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='') do_split_packages(d, root='/lib/firmware', file_regex='^(.*)\.cis$', output_pattern='kernel-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='') } do_strip() { if [ -n "${KERNEL_IMAGE_STRIP_EXTRA_SECTIONS}" ]; then if [[ "${KERNEL_IMAGETYPE}" != "vmlinux" ]]; then bbwarn "image type will not be stripped (not supported): ${KERNEL_IMAGETYPE}" return fi cd ${B} headers=`"$CROSS_COMPILE"readelf -S ${KERNEL_OUTPUT} | \ grep "^ \{1,\}\[[0-9 ]\{1,\}\] [^ ]" | \ sed "s/^ \{1,\}\[[0-9 ]\{1,\}\] //" | \ gawk '{print $1}'` for str in ${KERNEL_IMAGE_STRIP_EXTRA_SECTIONS}; do { if [[ "$headers" != *"$str"* ]]; then bbwarn "Section not found: $str"; fi "$CROSS_COMPILE"strip -s -R $str ${KERNEL_OUTPUT} }; done bbnote "KERNEL_IMAGE_STRIP_EXTRA_SECTIONS is set, stripping sections:" \ "${KERNEL_IMAGE_STRIP_EXTRA_SECTIONS}" fi; } do_strip[dirs] = "${B}" addtask do_strip before do_sizecheck after do_kernel_link_vmlinux # Support checking the kernel size since some kernels need to reside in partitions # with a fixed length or there is a limit in transferring the kernel to memory do_sizecheck() { if [ ! -z "${KERNEL_IMAGE_MAXSIZE}" ]; then cd ${B} size=`ls -lL ${KERNEL_OUTPUT} | awk '{ print $5}'` if [ $size -ge ${KERNEL_IMAGE_MAXSIZE} ]; then die "This kernel (size=$size > ${KERNEL_IMAGE_MAXSIZE}) is too big for your device. Please reduce the size of the kernel by making more of it modular." fi fi } do_sizecheck[dirs] = "${B}" addtask sizecheck before do_install after do_strip KERNEL_IMAGE_BASE_NAME ?= "${KERNEL_IMAGETYPE}-${PKGE}-${PKGV}-${PKGR}-${MACHINE}-${DATETIME}" # Don't include the DATETIME variable in the sstate package signatures KERNEL_IMAGE_BASE_NAME[vardepsexclude] = "DATETIME" KERNEL_IMAGE_SYMLINK_NAME ?= "${KERNEL_IMAGETYPE}-${MACHINE}" MODULE_IMAGE_BASE_NAME ?= "modules-${PKGE}-${PKGV}-${PKGR}-${MACHINE}-${DATETIME}" MODULE_IMAGE_BASE_NAME[vardepsexclude] = "DATETIME" MODULE_TARBALL_BASE_NAME ?= "${MODULE_IMAGE_BASE_NAME}.tgz" # Don't include the DATETIME variable in the sstate package signatures MODULE_TARBALL_SYMLINK_NAME ?= "modules-${MACHINE}.tgz" MODULE_TARBALL_DEPLOY ?= "1" do_uboot_mkimage() { if test "x${KERNEL_IMAGETYPE}" = "xuImage" ; then if test "x${KEEPUIMAGE}" != "xyes" ; then ENTRYPOINT=${UBOOT_ENTRYPOINT} if test -n "${UBOOT_ENTRYSYMBOL}"; then ENTRYPOINT=`${HOST_PREFIX}nm ${S}/vmlinux | \ awk '$3=="${UBOOT_ENTRYSYMBOL}" {print $1}'` fi if test -e arch/${ARCH}/boot/compressed/vmlinux ; then ${OBJCOPY} -O binary -R .note -R .comment -S arch/${ARCH}/boot/compressed/vmlinux linux.bin uboot-mkimage -A ${UBOOT_ARCH} -O linux -T kernel -C none -a ${UBOOT_LOADADDRESS} -e $ENTRYPOINT -n "${DISTRO_NAME}/${PV}/${MACHINE}" -d linux.bin arch/${ARCH}/boot/uImage rm -f linux.bin else ${OBJCOPY} -O binary -R .note -R .comment -S vmlinux linux.bin rm -f linux.bin.gz gzip -9 linux.bin uboot-mkimage -A ${UBOOT_ARCH} -O linux -T kernel -C gzip -a ${UBOOT_LOADADDRESS} -e $ENTRYPOINT -n "${DISTRO_NAME}/${PV}/${MACHINE}" -d linux.bin.gz arch/${ARCH}/boot/uImage rm -f linux.bin.gz fi fi fi } addtask uboot_mkimage before do_install after do_compile kernel_do_deploy() { install -m 0644 ${KERNEL_OUTPUT} ${DEPLOYDIR}/${KERNEL_IMAGE_BASE_NAME}.bin if [ ${MODULE_TARBALL_DEPLOY} = "1" ] && (grep -q -i -e '^CONFIG_MODULES=y$' .config); then mkdir -p ${D}/lib tar -cvzf ${DEPLOYDIR}/${MODULE_TARBALL_BASE_NAME} -C ${D} lib ln -sf ${MODULE_TARBALL_BASE_NAME} ${DEPLOYDIR}/${MODULE_TARBALL_SYMLINK_NAME} fi ln -sf ${KERNEL_IMAGE_BASE_NAME}.bin ${DEPLOYDIR}/${KERNEL_IMAGE_SYMLINK_NAME}.bin ln -sf ${KERNEL_IMAGE_BASE_NAME}.bin ${DEPLOYDIR}/${KERNEL_IMAGETYPE} cp ${COREBASE}/meta/files/deploydir_readme.txt ${DEPLOYDIR}/README_-_DO_NOT_DELETE_FILES_IN_THIS_DIRECTORY.txt } do_deploy[dirs] = "${DEPLOYDIR} ${B}" do_deploy[prefuncs] += "package_get_auto_pr" addtask deploy before do_build after do_install EXPORT_FUNCTIONS do_deploy