inherit linux-kernel-base kernel-module-split
|
|
COMPATIBLE_HOST = ".*-linux"
|
|
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)}"
|
DEPENDS += "${@bb.utils.contains("INITRAMFS_FSTYPES", "cpio.zst", "zstd-native", "", d)}"
|
PACKAGE_WRITE_DEPS += "depmodwrapper-cross"
|
|
do_deploy[depends] += "depmodwrapper-cross:do_populate_sysroot gzip-native:do_populate_sysroot"
|
do_clean[depends] += "make-mod-scripts:do_clean"
|
|
CVE_PRODUCT ?= "linux_kernel"
|
|
S = "${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 ${WORKDIR} in alternate
|
# kernel recipes (I.e. where KERNEL_PACKAGE_NAME != kernel) so that they
|
# may build in parallel with the default kernel without clobbering.
|
if kpn != "kernel":
|
workdir = d.getVar("WORKDIR")
|
sourceDir = os.path.join(workdir, 'kernel-source')
|
artifactsDir = os.path.join(workdir, 'kernel-build-artifacts')
|
d.setVar("STAGING_KERNEL_DIR", sourceDir)
|
d.setVar("STAGING_KERNEL_BUILDDIR", artifactsDir)
|
|
# Merge KERNEL_IMAGETYPE and KERNEL_ALT_IMAGETYPE into KERNEL_IMAGETYPES
|
type = d.getVar('KERNEL_IMAGETYPE') or ""
|
alttype = d.getVar('KERNEL_ALT_IMAGETYPE') or ""
|
types = d.getVar('KERNEL_IMAGETYPES') or ""
|
if type not in types.split():
|
types = (type + ' ' + types).strip()
|
if alttype not in types.split():
|
types = (alttype + ' ' + types).strip()
|
d.setVar('KERNEL_IMAGETYPES', types)
|
|
# KERNEL_IMAGETYPES may contain a mixture of image types supported directly
|
# by the kernel build system and types which are created by post-processing
|
# the output of the kernel build system (e.g. compressing vmlinux ->
|
# vmlinux.gz in kernel_do_compile()).
|
# KERNEL_IMAGETYPE_FOR_MAKE should contain only image types supported
|
# directly by the kernel build system.
|
if not d.getVar('KERNEL_IMAGETYPE_FOR_MAKE'):
|
typeformake = set()
|
for type in types.split():
|
if type == 'vmlinux.gz':
|
type = 'vmlinux'
|
typeformake.add(type)
|
|
d.setVar('KERNEL_IMAGETYPE_FOR_MAKE', ' '.join(sorted(typeformake)))
|
|
kname = d.getVar('KERNEL_PACKAGE_NAME') or "kernel"
|
imagedest = d.getVar('KERNEL_IMAGEDEST')
|
|
for type in types.split():
|
if bb.data.inherits_class('nopackages', d):
|
continue
|
typelower = type.lower()
|
d.appendVar('PACKAGES', ' %s-image-%s' % (kname, typelower))
|
d.setVar('FILES:' + kname + '-image-' + typelower, '/' + imagedest + '/' + type + '-${KERNEL_VERSION_NAME}' + ' /' + imagedest + '/' + type)
|
d.appendVar('RDEPENDS:%s-image' % kname, ' %s-image-%s (= ${EXTENDPKGV})' % (kname, typelower))
|
splitmods = d.getVar("KERNEL_SPLIT_MODULES")
|
if splitmods != '1':
|
d.appendVar('RDEPENDS:%s-image' % kname, ' %s-modules (= ${EXTENDPKGV})' % kname)
|
d.appendVar('RDEPENDS:%s-image-%s' % (kname, typelower), ' %s-modules-${KERNEL_VERSION_PKG_NAME} (= ${EXTENDPKGV})' % kname)
|
d.setVar('PKG:%s-modules' % kname, '%s-modules-${KERNEL_VERSION_PKG_NAME}' % kname)
|
d.appendVar('RPROVIDES:%s-modules' % kname, '%s-modules-${KERNEL_VERSION_PKG_NAME}' % kname)
|
|
d.setVar('PKG:%s-image-%s' % (kname,typelower), '%s-image-%s-${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} ${STAGING_KERNEL_BUILDDIR}"
|
python do_symlink_kernsrc () {
|
s = d.getVar("S")
|
if s[-1] == '/':
|
# drop trailing slash, so that os.symlink(kernsrc, s) doesn't use s as directory name and fail
|
s=s[:-1]
|
kernsrc = d.getVar("STAGING_KERNEL_DIR")
|
if s != kernsrc:
|
bb.utils.mkdirhier(kernsrc)
|
bb.utils.remove(kernsrc, recurse=True)
|
if d.getVar("EXTERNALSRC"):
|
# With EXTERNALSRC S will not be wiped so we can symlink to it
|
os.symlink(s, kernsrc)
|
else:
|
import shutil
|
shutil.move(s, kernsrc)
|
os.symlink(kernsrc, s)
|
}
|
# do_patch is normally ordered before do_configure, but
|
# externalsrc.bbclass deletes do_patch, breaking the dependency of
|
# do_configure on do_symlink_kernsrc.
|
addtask symlink_kernsrc before do_patch do_configure after do_unpack
|
|
inherit kernel-arch deploy
|
|
PACKAGES_DYNAMIC += "^${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 cpio.zst; 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
|
;;
|
*zst)
|
echo "zst decompressing image"
|
zstd -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|.zst) 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] = "${B}"
|
|
python do_devshell:prepend () {
|
os.environ["LDFLAGS"] = ''
|
}
|
|
addtask bundle_initramfs after do_install before do_deploy
|
|
kernel_do_compile() {
|
unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
|
if [ "${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
|
for typeformake in ${KERNEL_IMAGETYPE_FOR_MAKE} ; do
|
oe_runmake ${typeformake} CC="${KERNEL_CC}" 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
|
oe_runmake -C ${B} ${PARALLEL_MAKE} modules CC="${KERNEL_CC}" 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 ${STAGING_KERNEL_BUILDDIR}/
|
# 5.10+ kernels have module.lds that we need to copy for external module builds
|
if [ -e "${B}/scripts/module.lds" ]; then
|
install -Dm 0644 ${B}/scripts/module.lds ${STAGING_KERNEL_BUILDDIR}/scripts/module.lds
|
fi
|
else
|
bbnote "no modules to compile"
|
fi
|
}
|
addtask compile_kernelmodules after do_compile before do_strip
|
|
kernel_do_install() {
|
#
|
# First install the modules
|
#
|
unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
|
if (grep -q -i -e '^CONFIG_MODULES=y$' .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
|
|
#
|
# When including an initramfs bundle inside a FIT image, the fitImage is created after the install task
|
# by do_assemble_fitimage_initramfs.
|
# This happens after the generation of the initramfs bundle (done by do_bundle_initramfs).
|
# So, at the level of the install task we should not try to install the fitImage. fitImage is still not
|
# generated yet.
|
# After the generation of the fitImage, the deploy task copies the fitImage from the build directory to
|
# the deploy folder.
|
#
|
|
for imageType in ${KERNEL_IMAGETYPES} ; do
|
if [ $imageType != "fitImage" ] || [ "${INITRAMFS_IMAGE_BUNDLE}" != "1" ] ; then
|
install -m 0644 ${KERNEL_OUTPUT_DIR}/$imageType ${D}/${KERNEL_IMAGEDEST}/$imageType-${KERNEL_VERSION}
|
fi
|
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 ${B} savedefconfig
|
}
|
do_savedefconfig[nostamp] = "1"
|
addtask savedefconfig after do_configure
|
|
inherit cml1
|
|
KCONFIG_CONFIG_COMMAND:append = " LD='${KERNEL_LD}' 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 (= ${EXTENDPKGV})"
|
# Allow machines to override this dependency if kernel image files are
|
# not wanted in images as standard
|
RDEPENDS:${KERNEL_PACKAGE_NAME}-base ?= "${KERNEL_PACKAGE_NAME}-image (= ${EXTENDPKGV})"
|
PKG:${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 (= ${EXTENDPKGV})', '', d)}"
|
PKG:${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 -gt ${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 ${KERNEL_IMAGETYPE_FOR_MAKE} ; do
|
if [ "$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
|
