inherit linux-kernel-base 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) 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}-${MACHINE}.cpio for img in cpio.gz cpio.lz4 cpio.lzo cpio.lzma cpio.xz; do if [ -e "${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 ;; *lz4) echo "lz4 decompressing image" lz4 -df ${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.$img break ;; *lzo) echo "lzo decompressing image" lzop -df ${B}/usr/${INITRAMFS_IMAGE}-${MACHINE}.$img break ;; *lzma) echo "lzma decompressing image" lzma -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" fi } python do_devshell_prepend () { os.environ["LDFLAGS"] = '' } addtask bundle_initramfs after do_install before do_deploy 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/${KERNEL_VERSION}/source" # If the kernel/ directory is empty remove it to prevent QA issues rmdir --ignore-fail-on-non-empty "${D}/lib/modules/${KERNEL_VERSION}/kernel" 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. # find . -depth -not -name "*.cmd" -not -name "*.o" -not -name "*.so.dbg" -not -name "*.so" -not -path "./Documentation*" -not -path "./source*" -not -path "./.*" -print0 | cpio --null -pdlu $kerneldir cp .config $kerneldir if [ "${S}" != "${B}" ]; then pwd="$PWD" cd "${S}" find . -depth -not -path "./Documentation*" -not -path "./.*" -print0 | cpio --null -pdlu $kerneldir cd "$pwd" fi # Test to ensure that the output file and image type are not actually # the same file. If hardlinking is used, they will be the same, and there's # no need to install. ! [ ${KERNEL_OUTPUT} -ef $kerneldir/${KERNEL_IMAGETYPE} ] && install -m 0644 ${KERNEL_OUTPUT} $kerneldir/${KERNEL_IMAGETYPE} install -m 0644 System.map $kerneldir/System.map-${KERNEL_VERSION} # Dummy Makefile so the clean below works mkdir $kerneldir/Documentation touch $kerneldir/Documentation/Makefile # # 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 _mrproper_scripts # hide directories that shouldn't have their .c, s and S files deleted for d in tools scripts lib; do mv $kerneldir/$d $kerneldir/.$d done # delete .c, .s and .S files, unless we hid a directory as .