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