| inherit linux-kernel-base kernel-module-split |
| |
| KERNEL_PACKAGE_NAME ??= "kernel" |
| KERNEL_DEPLOYSUBDIR ??= "${@ "" if (d.getVar("KERNEL_PACKAGE_NAME") == "kernel") else d.getVar("KERNEL_PACKAGE_NAME") }" |
| |
| PROVIDES += "${@ "virtual/kernel" if (d.getVar("KERNEL_PACKAGE_NAME") == "kernel") else "" }" |
| DEPENDS += "virtual/${TARGET_PREFIX}binutils virtual/${TARGET_PREFIX}gcc kmod-native bc-native bison-native" |
| DEPENDS += "${@bb.utils.contains("INITRAMFS_FSTYPES", "cpio.lzo", "lzop-native", "", d)}" |
| DEPENDS += "${@bb.utils.contains("INITRAMFS_FSTYPES", "cpio.lz4", "lz4-native", "", d)}" |
| PACKAGE_WRITE_DEPS += "depmodwrapper-cross" |
| |
| do_deploy[depends] += "depmodwrapper-cross:do_populate_sysroot gzip-native:do_populate_sysroot" |
| do_clean[depends] += "make-mod-scripts:do_clean" |
| |
| CVE_PRODUCT ?= "linux_kernel" |
| |
| S = "${STAGING_KERNEL_DIR}" |
| B = "${WORKDIR}/build" |
| KBUILD_OUTPUT = "${B}" |
| OE_TERMINAL_EXPORTS += "KBUILD_OUTPUT" |
| |
| # we include gcc above, we dont need virtual/libc |
| INHIBIT_DEFAULT_DEPS = "1" |
| |
| KERNEL_IMAGETYPE ?= "zImage" |
| INITRAMFS_IMAGE ?= "" |
| INITRAMFS_IMAGE_NAME ?= "${@['${INITRAMFS_IMAGE}-${MACHINE}', ''][d.getVar('INITRAMFS_IMAGE') == '']}" |
| INITRAMFS_TASK ?= "" |
| INITRAMFS_IMAGE_BUNDLE ?= "" |
| |
| # KERNEL_VERSION is extracted from source code. It is evaluated as |
| # None for the first parsing, since the code has not been fetched. |
| # After the code is fetched, it will be evaluated as real version |
| # number and cause kernel to be rebuilt. To avoid this, make |
| # KERNEL_VERSION_NAME and KERNEL_VERSION_PKG_NAME depend on |
| # LINUX_VERSION which is a constant. |
| KERNEL_VERSION_NAME = "${@d.getVar('KERNEL_VERSION') or ""}" |
| KERNEL_VERSION_NAME[vardepvalue] = "${LINUX_VERSION}" |
| KERNEL_VERSION_PKG_NAME = "${@legitimize_package_name(d.getVar('KERNEL_VERSION'))}" |
| KERNEL_VERSION_PKG_NAME[vardepvalue] = "${LINUX_VERSION}" |
| |
| python __anonymous () { |
| pn = d.getVar("PN") |
| kpn = d.getVar("KERNEL_PACKAGE_NAME") |
| |
| # XXX Remove this after bug 11905 is resolved |
| # FILES_${KERNEL_PACKAGE_NAME}-dev doesn't expand correctly |
| if kpn == pn: |
| bb.warn("Some packages (E.g. *-dev) might be missing due to " |
| "bug 11905 (variable KERNEL_PACKAGE_NAME == PN)") |
| |
| # The default kernel recipe builds in a shared location defined by |
| # bitbake/distro confs: STAGING_KERNEL_DIR and STAGING_KERNEL_BUILDDIR. |
| # Set these variables to directories under ${WORKDIR} in alternate |
| # kernel recipes (I.e. where KERNEL_PACKAGE_NAME != kernel) so that they |
| # may build in parallel with the default kernel without clobbering. |
| if kpn != "kernel": |
| workdir = d.getVar("WORKDIR") |
| sourceDir = os.path.join(workdir, 'kernel-source') |
| artifactsDir = os.path.join(workdir, 'kernel-build-artifacts') |
| d.setVar("STAGING_KERNEL_DIR", sourceDir) |
| d.setVar("STAGING_KERNEL_BUILDDIR", artifactsDir) |
| |
| # Merge KERNEL_IMAGETYPE and KERNEL_ALT_IMAGETYPE into KERNEL_IMAGETYPES |
| type = d.getVar('KERNEL_IMAGETYPE') or "" |
| alttype = d.getVar('KERNEL_ALT_IMAGETYPE') or "" |
| types = d.getVar('KERNEL_IMAGETYPES') or "" |
| if type not in types.split(): |
| types = (type + ' ' + types).strip() |
| if alttype not in types.split(): |
| types = (alttype + ' ' + types).strip() |
| d.setVar('KERNEL_IMAGETYPES', types) |
| |
| # KERNEL_IMAGETYPES may contain a mixture of image types supported directly |
| # by the kernel build system and types which are created by post-processing |
| # the output of the kernel build system (e.g. compressing vmlinux -> |
| # vmlinux.gz in kernel_do_compile()). |
| # KERNEL_IMAGETYPE_FOR_MAKE should contain only image types supported |
| # directly by the kernel build system. |
| if not d.getVar('KERNEL_IMAGETYPE_FOR_MAKE'): |
| typeformake = set() |
| for type in types.split(): |
| if type == 'vmlinux.gz': |
| type = 'vmlinux' |
| typeformake.add(type) |
| |
| d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', ' '.join(sorted(typeformake))) |
| |
| kname = d.getVar('KERNEL_PACKAGE_NAME') or "kernel" |
| imagedest = d.getVar('KERNEL_IMAGEDEST') |
| |
| for type in types.split(): |
| typelower = type.lower() |
| d.appendVar('PACKAGES', ' %s-image-%s' % (kname, typelower)) |
| d.setVar('FILES_' + kname + '-image-' + typelower, '/' + imagedest + '/' + type + '-${KERNEL_VERSION_NAME}' + ' /' + imagedest + '/' + type) |
| d.appendVar('RDEPENDS_%s-image' % kname, ' %s-image-%s' % (kname, typelower)) |
| d.setVar('PKG_%s-image-%s' % (kname,typelower), '%s-image-%s-${KERNEL_VERSION_PKG_NAME}' % (kname, typelower)) |
| d.setVar('ALLOW_EMPTY_%s-image-%s' % (kname, typelower), '1') |
| d.setVar('pkg_postinst_%s-image-%s' % (kname,typelower), """set +e |
| if [ -n "$D" ]; then |
| ln -sf %s-${KERNEL_VERSION} $D/${KERNEL_IMAGEDEST}/%s > /dev/null 2>&1 |
| else |
| ln -sf %s-${KERNEL_VERSION} ${KERNEL_IMAGEDEST}/%s > /dev/null 2>&1 |
| if [ $? -ne 0 ]; then |
| echo "Filesystem on ${KERNEL_IMAGEDEST}/ doesn't support symlinks, falling back to copied image (%s)." |
| install -m 0644 ${KERNEL_IMAGEDEST}/%s-${KERNEL_VERSION} ${KERNEL_IMAGEDEST}/%s |
| fi |
| fi |
| set -e |
| """ % (type, type, type, type, type, type, type)) |
| d.setVar('pkg_postrm_%s-image-%s' % (kname,typelower), """set +e |
| if [ -f "${KERNEL_IMAGEDEST}/%s" -o -L "${KERNEL_IMAGEDEST}/%s" ]; then |
| rm -f ${KERNEL_IMAGEDEST}/%s > /dev/null 2>&1 |
| fi |
| set -e |
| """ % (type, type, type)) |
| |
| |
| image = d.getVar('INITRAMFS_IMAGE') |
| # If the INTIRAMFS_IMAGE is set but the INITRAMFS_IMAGE_BUNDLE is set to 0, |
| # the do_bundle_initramfs does nothing, but the INITRAMFS_IMAGE is built |
| # standalone for use by wic and other tools. |
| if image: |
| d.appendVarFlag('do_bundle_initramfs', 'depends', ' ${INITRAMFS_IMAGE}:do_image_complete') |
| |
| # 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') |
| if image_task: |
| d.appendVarFlag('do_configure', 'depends', ' ${INITRAMFS_TASK}') |
| } |
| |
| # Here we pull in all various kernel image types which we support. |
| # |
| # In case you're wondering why kernel.bbclass inherits the other image |
| # types instead of the other way around, the reason for that is to |
| # maintain compatibility with various currently existing meta-layers. |
| # By pulling in the various kernel image types here, we retain the |
| # original behavior of kernel.bbclass, so no meta-layers should get |
| # broken. |
| # |
| # KERNEL_CLASSES by default pulls in kernel-uimage.bbclass, since this |
| # used to be the default behavior when only uImage was supported. This |
| # variable can be appended by users who implement support for new kernel |
| # image types. |
| |
| KERNEL_CLASSES ?= " kernel-uimage " |
| inherit ${KERNEL_CLASSES} |
| |
| # Old style kernels may set ${S} = ${WORKDIR}/git for example |
| # We need to move these over to STAGING_KERNEL_DIR. We can't just |
| # create the symlink in advance as the git fetcher can't cope with |
| # the symlink. |
| do_unpack[cleandirs] += " ${S} ${STAGING_KERNEL_DIR} ${B} ${STAGING_KERNEL_BUILDDIR}" |
| do_clean[cleandirs] += " ${S} ${STAGING_KERNEL_DIR} ${B} ${STAGING_KERNEL_BUILDDIR}" |
| python do_symlink_kernsrc () { |
| s = d.getVar("S") |
| if s[-1] == '/': |
| # drop trailing slash, so that os.symlink(kernsrc, s) doesn't use s as directory name and fail |
| s=s[:-1] |
| kernsrc = d.getVar("STAGING_KERNEL_DIR") |
| if s != kernsrc: |
| bb.utils.mkdirhier(kernsrc) |
| bb.utils.remove(kernsrc, recurse=True) |
| if d.getVar("EXTERNALSRC"): |
| # With EXTERNALSRC S will not be wiped so we can symlink to it |
| os.symlink(s, kernsrc) |
| else: |
| import shutil |
| shutil.move(s, kernsrc) |
| os.symlink(kernsrc, s) |
| } |
| addtask symlink_kernsrc before do_patch after do_unpack |
| |
| inherit kernel-arch deploy |
| |
| PACKAGES_DYNAMIC += "^${KERNEL_PACKAGE_NAME}-module-.*" |
| PACKAGES_DYNAMIC += "^${KERNEL_PACKAGE_NAME}-image-.*" |
| PACKAGES_DYNAMIC += "^${KERNEL_PACKAGE_NAME}-firmware-.*" |
| |
| export OS = "${TARGET_OS}" |
| export CROSS_COMPILE = "${TARGET_PREFIX}" |
| export KBUILD_BUILD_VERSION = "1" |
| export KBUILD_BUILD_USER ?= "oe-user" |
| export KBUILD_BUILD_HOST ?= "oe-host" |
| |
| KERNEL_RELEASE ?= "${KERNEL_VERSION}" |
| |
| # The directory where built kernel lies in the kernel tree |
| KERNEL_OUTPUT_DIR ?= "arch/${ARCH}/boot" |
| KERNEL_IMAGEDEST ?= "boot" |
| |
| # |
| # configuration |
| # |
| export CMDLINE_CONSOLE = "console=${@d.getVar("KERNEL_CONSOLE") or "ttyS0"}" |
| |
| KERNEL_VERSION = "${@get_kernelversion_headers('${B}')}" |
| |
| KERNEL_LOCALVERSION ?= "" |
| |
| # kernels are generally machine specific |
| PACKAGE_ARCH = "${MACHINE_ARCH}" |
| |
| # U-Boot support |
| UBOOT_ENTRYPOINT ?= "20008000" |
| UBOOT_LOADADDRESS ?= "${UBOOT_ENTRYPOINT}" |
| |
| # Some Linux kernel configurations need additional parameters on the command line |
| KERNEL_EXTRA_ARGS ?= "" |
| |
| EXTRA_OEMAKE = " HOSTCC="${BUILD_CC} ${BUILD_CFLAGS} ${BUILD_LDFLAGS}" HOSTCPP="${BUILD_CPP}"" |
| EXTRA_OEMAKE += " HOSTCXX="${BUILD_CXX} ${BUILD_CXXFLAGS} ${BUILD_LDFLAGS}"" |
| |
| KERNEL_ALT_IMAGETYPE ??= "" |
| |
| 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_NAME}.cpio |
| for img in cpio cpio.gz cpio.lz4 cpio.lzo cpio.lzma cpio.xz; do |
| if [ -e "${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.$img" ]; then |
| cp ${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.$img ${B}/usr/. |
| case $img in |
| *gz) |
| echo "gzip decompressing image" |
| gunzip -f ${B}/usr/${INITRAMFS_IMAGE_NAME}.$img |
| break |
| ;; |
| *lz4) |
| echo "lz4 decompressing image" |
| lz4 -df ${B}/usr/${INITRAMFS_IMAGE_NAME}.$img ${B}/usr/${INITRAMFS_IMAGE_NAME}.cpio |
| break |
| ;; |
| *lzo) |
| echo "lzo decompressing image" |
| lzop -df ${B}/usr/${INITRAMFS_IMAGE_NAME}.$img |
| break |
| ;; |
| *lzma) |
| echo "lzma decompressing image" |
| lzma -df ${B}/usr/${INITRAMFS_IMAGE_NAME}.$img |
| break |
| ;; |
| *xz) |
| echo "xz decompressing image" |
| xz -df ${B}/usr/${INITRAMFS_IMAGE_NAME}.$img |
| break |
| ;; |
| esac |
| break |
| fi |
| done |
| # Verify that the above loop found a initramfs, fail otherwise |
| [ -f ${B}/usr/${INITRAMFS_IMAGE_NAME}.cpio ] && echo "Finished copy of initramfs into ./usr" || die "Could not find any ${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_NAME}.cpio{.gz|.lz4|.lzo|.lzma|.xz) for bundling; INITRAMFS_IMAGE_NAME might be wrong." |
| } |
| |
| 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 |
| # Backing up kernel image relies on its type(regular file or symbolic link) |
| tmp_path="" |
| for imageType in ${KERNEL_IMAGETYPE_FOR_MAKE} ; do |
| if [ -h ${KERNEL_OUTPUT_DIR}/$imageType ] ; then |
| linkpath=`readlink -n ${KERNEL_OUTPUT_DIR}/$imageType` |
| realpath=`readlink -fn ${KERNEL_OUTPUT_DIR}/$imageType` |
| mv -f $realpath $realpath.bak |
| tmp_path=$tmp_path" "$imageType"#"$linkpath"#"$realpath |
| elif [ -f ${KERNEL_OUTPUT_DIR}/$imageType ]; then |
| mv -f ${KERNEL_OUTPUT_DIR}/$imageType ${KERNEL_OUTPUT_DIR}/$imageType.bak |
| tmp_path=$tmp_path" "$imageType"##" |
| fi |
| done |
| use_alternate_initrd=CONFIG_INITRAMFS_SOURCE=${B}/usr/${INITRAMFS_IMAGE_NAME}.cpio |
| kernel_do_compile |
| # Restoring kernel image |
| for tp in $tmp_path ; do |
| imageType=`echo $tp|cut -d "#" -f 1` |
| linkpath=`echo $tp|cut -d "#" -f 2` |
| realpath=`echo $tp|cut -d "#" -f 3` |
| if [ -n "$realpath" ]; then |
| mv -f $realpath $realpath.initramfs |
| mv -f $realpath.bak $realpath |
| ln -sf $linkpath.initramfs ${B}/${KERNEL_OUTPUT_DIR}/$imageType.initramfs |
| else |
| mv -f ${KERNEL_OUTPUT_DIR}/$imageType ${KERNEL_OUTPUT_DIR}/$imageType.initramfs |
| mv -f ${KERNEL_OUTPUT_DIR}/$imageType.bak ${KERNEL_OUTPUT_DIR}/$imageType |
| fi |
| done |
| fi |
| } |
| do_bundle_initramfs[dirs] = "${B}" |
| |
| python do_devshell_prepend () { |
| os.environ["LDFLAGS"] = '' |
| } |
| |
| addtask bundle_initramfs after do_install before do_deploy |
| |
| get_cc_option () { |
| # Check if KERNEL_CC supports the option "file-prefix-map". |
| # This option allows us to build images with __FILE__ values that do not |
| # contain the host build path. |
| if ${KERNEL_CC} -Q --help=joined | grep -q "\-ffile-prefix-map=<old=new>"; then |
| echo "-ffile-prefix-map=${S}=/kernel-source/" |
| fi |
| } |
| |
| kernel_do_compile() { |
| unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE |
| if [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then |
| # kernel sources do not use do_unpack, so SOURCE_DATE_EPOCH may not |
| # be set.... |
| if [ "${SOURCE_DATE_EPOCH}" = "" -o "${SOURCE_DATE_EPOCH}" = "0" ]; then |
| # The source directory is not necessarily a git repository, so we |
| # specify the git-dir to ensure that git does not query a |
| # repository in any parent directory. |
| SOURCE_DATE_EPOCH=`git --git-dir="${S}/.git" log -1 --pretty=%ct 2>/dev/null || echo "${REPRODUCIBLE_TIMESTAMP_ROOTFS}"` |
| fi |
| |
| ts=`LC_ALL=C date -d @$SOURCE_DATE_EPOCH` |
| export KBUILD_BUILD_TIMESTAMP="$ts" |
| export KCONFIG_NOTIMESTAMP=1 |
| bbnote "KBUILD_BUILD_TIMESTAMP: $ts" |
| fi |
| # 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/${INITRAMFS_IMAGE_NAME}.cpio |
| fi |
| cc_extra=$(get_cc_option) |
| for typeformake in ${KERNEL_IMAGETYPE_FOR_MAKE} ; do |
| oe_runmake ${typeformake} CC="${KERNEL_CC} $cc_extra " LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS} $use_alternate_initrd |
| done |
| # vmlinux.gz is not built by kernel |
| if (echo "${KERNEL_IMAGETYPES}" | grep -wq "vmlinux\.gz"); then |
| mkdir -p "${KERNEL_OUTPUT_DIR}" |
| gzip -9cn < ${B}/vmlinux > "${KERNEL_OUTPUT_DIR}/vmlinux.gz" |
| fi |
| } |
| |
| do_compile_kernelmodules() { |
| unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE |
| if [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then |
| # kernel sources do not use do_unpack, so SOURCE_DATE_EPOCH may not |
| # be set.... |
| if [ "${SOURCE_DATE_EPOCH}" = "" -o "${SOURCE_DATE_EPOCH}" = "0" ]; then |
| # The source directory is not necessarily a git repository, so we |
| # specify the git-dir to ensure that git does not query a |
| # repository in any parent directory. |
| SOURCE_DATE_EPOCH=`git --git-dir="${S}/.git" log -1 --pretty=%ct 2>/dev/null || echo "${REPRODUCIBLE_TIMESTAMP_ROOTFS}"` |
| fi |
| |
| ts=`LC_ALL=C date -d @$SOURCE_DATE_EPOCH` |
| export KBUILD_BUILD_TIMESTAMP="$ts" |
| export KCONFIG_NOTIMESTAMP=1 |
| bbnote "KBUILD_BUILD_TIMESTAMP: $ts" |
| fi |
| if (grep -q -i -e '^CONFIG_MODULES=y$' ${B}/.config); then |
| cc_extra=$(get_cc_option) |
| oe_runmake -C ${B} ${PARALLEL_MAKE} modules CC="${KERNEL_CC} $cc_extra " LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS} |
| |
| # Module.symvers gets updated during the |
| # building of the kernel modules. We need to |
| # update this in the shared workdir since some |
| # external kernel modules has a dependency on |
| # other kernel modules and will look at this |
| # file to do symbol lookups |
| cp ${B}/Module.symvers ${STAGING_KERNEL_BUILDDIR}/ |
| else |
| bbnote "no modules to compile" |
| fi |
| } |
| addtask compile_kernelmodules after do_compile before do_strip |
| |
| kernel_do_install() { |
| # |
| # First install the modules |
| # |
| unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE |
| if (grep -q -i -e '^CONFIG_MODULES=y$' .config); then |
| oe_runmake DEPMOD=echo MODLIB=${D}${nonarch_base_libdir}/modules/${KERNEL_VERSION} INSTALL_FW_PATH=${D}${nonarch_base_libdir}/firmware modules_install |
| rm "${D}${nonarch_base_libdir}/modules/${KERNEL_VERSION}/build" |
| rm "${D}${nonarch_base_libdir}/modules/${KERNEL_VERSION}/source" |
| # If the kernel/ directory is empty remove it to prevent QA issues |
| rmdir --ignore-fail-on-non-empty "${D}${nonarch_base_libdir}/modules/${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 |
| for imageType in ${KERNEL_IMAGETYPES} ; do |
| install -m 0644 ${KERNEL_OUTPUT_DIR}/$imageType ${D}/${KERNEL_IMAGEDEST}/$imageType-${KERNEL_VERSION} |
| done |
| 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 |
| } |
| |
| # Must be ran no earlier than after do_kernel_checkout or else Makefile won't be in ${S}/Makefile |
| do_kernel_version_sanity_check() { |
| if [ "x${KERNEL_VERSION_SANITY_SKIP}" = "x1" ]; then |
| exit 0 |
| fi |
| |
| # The Makefile determines the kernel version shown at runtime |
| # Don't use KERNEL_VERSION because the headers it grabs the version from aren't generated until do_compile |
| VERSION=$(grep "^VERSION =" ${S}/Makefile | sed s/.*=\ *//) |
| PATCHLEVEL=$(grep "^PATCHLEVEL =" ${S}/Makefile | sed s/.*=\ *//) |
| SUBLEVEL=$(grep "^SUBLEVEL =" ${S}/Makefile | sed s/.*=\ *//) |
| EXTRAVERSION=$(grep "^EXTRAVERSION =" ${S}/Makefile | sed s/.*=\ *//) |
| |
| # Build a string for regex and a plain version string |
| reg="^${VERSION}\.${PATCHLEVEL}" |
| vers="${VERSION}.${PATCHLEVEL}" |
| if [ -n "${SUBLEVEL}" ]; then |
| # Ignoring a SUBLEVEL of zero is fine |
| if [ "${SUBLEVEL}" = "0" ]; then |
| reg="${reg}(\.${SUBLEVEL})?" |
| else |
| reg="${reg}\.${SUBLEVEL}" |
| vers="${vers}.${SUBLEVEL}" |
| fi |
| fi |
| vers="${vers}${EXTRAVERSION}" |
| reg="${reg}${EXTRAVERSION}" |
| |
| if [ -z `echo ${PV} | grep -E "${reg}"` ]; then |
| bbfatal "Package Version (${PV}) does not match of kernel being built (${vers}). Please update the PV variable to match the kernel source or set KERNEL_VERSION_SANITY_SKIP=\"1\" in your recipe." |
| fi |
| exit 0 |
| } |
| |
| addtask shared_workdir after do_compile before do_compile_kernelmodules |
| addtask shared_workdir_setscene |
| |
| do_shared_workdir_setscene () { |
| exit 1 |
| } |
| |
| emit_depmod_pkgdata() { |
| # Stash data for depmod |
| install -d ${PKGDESTWORK}/${KERNEL_PACKAGE_NAME}-depmod/ |
| echo "${KERNEL_VERSION}" > ${PKGDESTWORK}/${KERNEL_PACKAGE_NAME}-depmod/${KERNEL_PACKAGE_NAME}-abiversion |
| cp ${B}/System.map ${PKGDESTWORK}/${KERNEL_PACKAGE_NAME}-depmod/System.map-${KERNEL_VERSION} |
| } |
| |
| PACKAGEFUNCS += "emit_depmod_pkgdata" |
| |
| do_shared_workdir[cleandirs] += " ${STAGING_KERNEL_BUILDDIR}" |
| do_shared_workdir () { |
| cd ${B} |
| |
| kerneldir=${STAGING_KERNEL_BUILDDIR} |
| install -d $kerneldir |
| |
| # |
| # Store the kernel version in sysroots for module-base.bbclass |
| # |
| |
| echo "${KERNEL_VERSION}" > $kerneldir/${KERNEL_PACKAGE_NAME}-abiversion |
| |
| # Copy files required for module builds |
| cp System.map $kerneldir/System.map-${KERNEL_VERSION} |
| [ -e Module.symvers ] && cp Module.symvers $kerneldir/ |
| cp .config $kerneldir/ |
| mkdir -p $kerneldir/include/config |
| cp include/config/kernel.release $kerneldir/include/config/kernel.release |
| if [ -e certs/signing_key.x509 ]; then |
| # The signing_key.* files are stored in the certs/ dir in |
| # newer Linux kernels |
| mkdir -p $kerneldir/certs |
| cp certs/signing_key.* $kerneldir/certs/ |
| elif [ -e signing_key.priv ]; then |
| cp signing_key.* $kerneldir/ |
| fi |
| |
| # We can also copy over all the generated files and avoid special cases |
| # like version.h, but we've opted to keep this small until file creep starts |
| # to happen |
| if [ -e include/linux/version.h ]; then |
| mkdir -p $kerneldir/include/linux |
| cp include/linux/version.h $kerneldir/include/linux/version.h |
| fi |
| |
| # 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 |
| if [ -e arch/powerpc/lib/crtsavres.o ]; then |
| mkdir -p $kerneldir/arch/powerpc/lib/ |
| cp arch/powerpc/lib/crtsavres.o $kerneldir/arch/powerpc/lib/crtsavres.o |
| fi |
| fi |
| |
| if [ -d include/generated ]; then |
| mkdir -p $kerneldir/include/generated/ |
| cp -fR include/generated/* $kerneldir/include/generated/ |
| fi |
| |
| if [ -d arch/${ARCH}/include/generated ]; then |
| mkdir -p $kerneldir/arch/${ARCH}/include/generated/ |
| cp -fR arch/${ARCH}/include/generated/* $kerneldir/arch/${ARCH}/include/generated/ |
| fi |
| |
| if (grep -q -i -e '^CONFIG_UNWINDER_ORC=y$' $kerneldir/.config); then |
| # With CONFIG_UNWINDER_ORC (the default in 4.14), objtool is required for |
| # out-of-tree modules to be able to generate object files. |
| if [ -x tools/objtool/objtool ]; then |
| mkdir -p ${kerneldir}/tools/objtool |
| cp tools/objtool/objtool ${kerneldir}/tools/objtool/ |
| fi |
| fi |
| } |
| |
| # We don't need to stage anything, not the modules/firmware since those would clash with linux-firmware |
| sysroot_stage_all () { |
| : |
| } |
| |
| KERNEL_CONFIG_COMMAND ?= "oe_runmake_call -C ${S} CC="${KERNEL_CC}" LD="${KERNEL_LD}" O=${B} olddefconfig || oe_runmake -C ${S} O=${B} CC="${KERNEL_CC}" LD="${KERNEL_LD}" oldnoconfig" |
| |
| python check_oldest_kernel() { |
| oldest_kernel = d.getVar('OLDEST_KERNEL') |
| kernel_version = d.getVar('KERNEL_VERSION') |
| tclibc = d.getVar('TCLIBC') |
| if tclibc == 'glibc': |
| kernel_version = kernel_version.split('-', 1)[0] |
| if oldest_kernel and kernel_version: |
| if bb.utils.vercmp_string(kernel_version, oldest_kernel) < 0: |
| bb.warn('%s: OLDEST_KERNEL is "%s" but the version of the kernel you are building is "%s" - therefore %s as built may not be compatible with this kernel. Either set OLDEST_KERNEL to an older version, or build a newer kernel.' % (d.getVar('PN'), oldest_kernel, kernel_version, tclibc)) |
| } |
| |
| check_oldest_kernel[vardepsexclude] += "OLDEST_KERNEL KERNEL_VERSION" |
| do_configure[prefuncs] += "check_oldest_kernel" |
| |
| 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 ${S}/.scmversion |
| |
| if [ "${S}" != "${B}" ] && [ -f "${S}/.config" ] && [ ! -f "${B}/.config" ]; then |
| mv "${S}/.config" "${B}/.config" |
| fi |
| |
| # Copy defconfig to .config if .config does not exist. This allows |
| # recipes to manage the .config themselves in do_configure_prepend(). |
| if [ -f "${WORKDIR}/defconfig" ] && [ ! -f "${B}/.config" ]; then |
| cp "${WORKDIR}/defconfig" "${B}/.config" |
| fi |
| |
| ${KERNEL_CONFIG_COMMAND} |
| } |
| |
| do_savedefconfig() { |
| bbplain "Saving defconfig to:\n${B}/defconfig" |
| oe_runmake -C ${B} savedefconfig |
| } |
| do_savedefconfig[nostamp] = "1" |
| addtask savedefconfig after do_configure |
| |
| inherit cml1 |
| |
| KCONFIG_CONFIG_COMMAND_append = " HOSTLDFLAGS='${BUILD_LDFLAGS}'" |
| |
| EXPORT_FUNCTIONS do_compile do_install do_configure |
| |
| # kernel-base becomes kernel-${KERNEL_VERSION} |
| # kernel-image becomes kernel-image-${KERNEL_VERSION} |
| PACKAGES = "${KERNEL_PACKAGE_NAME} ${KERNEL_PACKAGE_NAME}-base ${KERNEL_PACKAGE_NAME}-vmlinux ${KERNEL_PACKAGE_NAME}-image ${KERNEL_PACKAGE_NAME}-dev ${KERNEL_PACKAGE_NAME}-modules" |
| FILES_${PN} = "" |
| FILES_${KERNEL_PACKAGE_NAME}-base = "${nonarch_base_libdir}/modules/${KERNEL_VERSION}/modules.order ${nonarch_base_libdir}/modules/${KERNEL_VERSION}/modules.builtin ${nonarch_base_libdir}/modules/${KERNEL_VERSION}/modules.builtin.modinfo" |
| FILES_${KERNEL_PACKAGE_NAME}-image = "" |
| FILES_${KERNEL_PACKAGE_NAME}-dev = "/boot/System.map* /boot/Module.symvers* /boot/config* ${KERNEL_SRC_PATH} ${nonarch_base_libdir}/modules/${KERNEL_VERSION}/build" |
| FILES_${KERNEL_PACKAGE_NAME}-vmlinux = "/boot/vmlinux-${KERNEL_VERSION_NAME}" |
| FILES_${KERNEL_PACKAGE_NAME}-modules = "" |
| RDEPENDS_${KERNEL_PACKAGE_NAME} = "${KERNEL_PACKAGE_NAME}-base" |
| # Allow machines to override this dependency if kernel image files are |
| # not wanted in images as standard |
| RDEPENDS_${KERNEL_PACKAGE_NAME}-base ?= "${KERNEL_PACKAGE_NAME}-image" |
| PKG_${KERNEL_PACKAGE_NAME}-image = "${KERNEL_PACKAGE_NAME}-image-${@legitimize_package_name(d.getVar('KERNEL_VERSION'))}" |
| RDEPENDS_${KERNEL_PACKAGE_NAME}-image += "${@oe.utils.conditional('KERNEL_IMAGETYPE', 'vmlinux', '${KERNEL_PACKAGE_NAME}-vmlinux', '', d)}" |
| PKG_${KERNEL_PACKAGE_NAME}-base = "${KERNEL_PACKAGE_NAME}-${@legitimize_package_name(d.getVar('KERNEL_VERSION'))}" |
| RPROVIDES_${KERNEL_PACKAGE_NAME}-base += "${KERNEL_PACKAGE_NAME}-${KERNEL_VERSION}" |
| ALLOW_EMPTY_${KERNEL_PACKAGE_NAME} = "1" |
| ALLOW_EMPTY_${KERNEL_PACKAGE_NAME}-base = "1" |
| ALLOW_EMPTY_${KERNEL_PACKAGE_NAME}-image = "1" |
| ALLOW_EMPTY_${KERNEL_PACKAGE_NAME}-modules = "1" |
| DESCRIPTION_${KERNEL_PACKAGE_NAME}-modules = "Kernel modules meta package" |
| |
| pkg_postinst_${KERNEL_PACKAGE_NAME}-base () { |
| if [ ! -e "$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 ${KERNEL_VERSION} |
| fi |
| } |
| |
| PACKAGESPLITFUNCS_prepend = "split_kernel_packages " |
| |
| python split_kernel_packages () { |
| do_split_packages(d, root='${nonarch_base_libdir}/firmware', file_regex=r'^(.*)\.(bin|fw|cis|csp|dsp)$', output_pattern='${KERNEL_PACKAGE_NAME}-firmware-%s', description='Firmware for %s', recursive=True, extra_depends='') |
| } |
| |
| # Many scripts want to look in arch/$arch/boot for the bootable |
| # image. This poses a problem for vmlinux and vmlinuz based |
| # booting. This task arranges to have vmlinux and vmlinuz appear |
| # in the normalized directory location. |
| do_kernel_link_images() { |
| if [ ! -d "${B}/arch/${ARCH}/boot" ]; then |
| mkdir ${B}/arch/${ARCH}/boot |
| fi |
| cd ${B}/arch/${ARCH}/boot |
| ln -sf ../../../vmlinux |
| if [ -f ../../../vmlinuz ]; then |
| ln -sf ../../../vmlinuz |
| fi |
| if [ -f ../../../vmlinuz.bin ]; then |
| ln -sf ../../../vmlinuz.bin |
| fi |
| if [ -f ../../../vmlinux.64 ]; then |
| ln -sf ../../../vmlinux.64 |
| fi |
| } |
| addtask kernel_link_images after do_compile before do_strip |
| |
| do_strip() { |
| if [ -n "${KERNEL_IMAGE_STRIP_EXTRA_SECTIONS}" ]; then |
| if ! (echo "${KERNEL_IMAGETYPES}" | grep -wq "vmlinux"); then |
| bbwarn "image type(s) will not be stripped (not supported): ${KERNEL_IMAGETYPES}" |
| return |
| fi |
| |
| cd ${B} |
| headers=`"$CROSS_COMPILE"readelf -S ${KERNEL_OUTPUT_DIR}/vmlinux | \ |
| grep "^ \{1,\}\[[0-9 ]\{1,\}\] [^ ]" | \ |
| sed "s/^ \{1,\}\[[0-9 ]\{1,\}\] //" | \ |
| gawk '{print $1}'` |
| |
| for str in ${KERNEL_IMAGE_STRIP_EXTRA_SECTIONS}; do { |
| if ! (echo "$headers" | grep -q "^$str$"); then |
| bbwarn "Section not found: $str"; |
| fi |
| |
| "$CROSS_COMPILE"strip -s -R $str ${KERNEL_OUTPUT_DIR}/vmlinux |
| }; done |
| |
| bbnote "KERNEL_IMAGE_STRIP_EXTRA_SECTIONS is set, stripping sections:" \ |
| "${KERNEL_IMAGE_STRIP_EXTRA_SECTIONS}" |
| fi; |
| } |
| do_strip[dirs] = "${B}" |
| |
| addtask strip before do_sizecheck after do_kernel_link_images |
| |
| # Support checking the kernel size since some kernels need to reside in partitions |
| # with a fixed length or there is a limit in transferring the kernel to memory. |
| # If more than one image type is enabled, warn on any that don't fit but only fail |
| # if none fit. |
| do_sizecheck() { |
| if [ ! -z "${KERNEL_IMAGE_MAXSIZE}" ]; then |
| invalid=`echo ${KERNEL_IMAGE_MAXSIZE} | sed 's/[0-9]//g'` |
| if [ -n "$invalid" ]; then |
| die "Invalid KERNEL_IMAGE_MAXSIZE: ${KERNEL_IMAGE_MAXSIZE}, should be an integer (The unit is Kbytes)" |
| fi |
| at_least_one_fits= |
| for imageType in ${KERNEL_IMAGETYPES} ; do |
| size=`du -ks ${B}/${KERNEL_OUTPUT_DIR}/$imageType | awk '{print $1}'` |
| if [ $size -ge ${KERNEL_IMAGE_MAXSIZE} ]; then |
| bbwarn "This kernel $imageType (size=$size(K) > ${KERNEL_IMAGE_MAXSIZE}(K)) is too big for your device." |
| else |
| at_least_one_fits=y |
| fi |
| done |
| if [ -z "$at_least_one_fits" ]; then |
| die "All kernel images are too big for your device. Please reduce the size of the kernel by making more of it modular." |
| fi |
| fi |
| } |
| do_sizecheck[dirs] = "${B}" |
| |
| addtask sizecheck before do_install after do_strip |
| |
| inherit kernel-artifact-names |
| |
| kernel_do_deploy() { |
| deployDir="${DEPLOYDIR}" |
| if [ -n "${KERNEL_DEPLOYSUBDIR}" ]; then |
| deployDir="${DEPLOYDIR}/${KERNEL_DEPLOYSUBDIR}" |
| mkdir "$deployDir" |
| fi |
| |
| for imageType in ${KERNEL_IMAGETYPES} ; do |
| baseName=$imageType-${KERNEL_IMAGE_NAME} |
| install -m 0644 ${KERNEL_OUTPUT_DIR}/$imageType $deployDir/$baseName.bin |
| ln -sf $baseName.bin $deployDir/$imageType-${KERNEL_IMAGE_LINK_NAME}.bin |
| ln -sf $baseName.bin $deployDir/$imageType |
| done |
| |
| if [ ${MODULE_TARBALL_DEPLOY} = "1" ] && (grep -q -i -e '^CONFIG_MODULES=y$' .config); then |
| mkdir -p ${D}${root_prefix}/lib |
| if [ -n "${SOURCE_DATE_EPOCH}" ]; then |
| TAR_ARGS="--sort=name --clamp-mtime --mtime=@${SOURCE_DATE_EPOCH}" |
| else |
| TAR_ARGS="" |
| fi |
| TAR_ARGS="$TAR_ARGS --owner=0 --group=0" |
| tar $TAR_ARGS -cv -C ${D}${root_prefix} lib | gzip -9n > $deployDir/modules-${MODULE_TARBALL_NAME}.tgz |
| |
| ln -sf modules-${MODULE_TARBALL_NAME}.tgz $deployDir/modules-${MODULE_TARBALL_LINK_NAME}.tgz |
| fi |
| |
| if [ ! -z "${INITRAMFS_IMAGE}" -a x"${INITRAMFS_IMAGE_BUNDLE}" = x1 ]; then |
| for imageType in ${KERNEL_IMAGETYPES} ; do |
| if [ "$imageType" = "fitImage" ] ; then |
| continue |
| fi |
| initramfsBaseName=$imageType-${INITRAMFS_NAME} |
| install -m 0644 ${KERNEL_OUTPUT_DIR}/$imageType.initramfs $deployDir/$initramfsBaseName.bin |
| ln -sf $initramfsBaseName.bin $deployDir/$imageType-${INITRAMFS_LINK_NAME}.bin |
| done |
| fi |
| } |
| |
| # We deploy to filenames that include PKGV and PKGR, read the saved data to |
| # ensure we get the right values for both |
| do_deploy[prefuncs] += "read_subpackage_metadata" |
| |
| addtask deploy after do_populate_sysroot do_packagedata |
| |
| EXPORT_FUNCTIONS do_deploy |
| |
| # Add using Device Tree support |
| inherit kernel-devicetree |