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SUMMARY = "Linux kernel Development Source"
DESCRIPTION = "Development source linux kernel. When built, this recipe packages the \
source of the preferred virtual/kernel provider and makes it available for full kernel \
development or external module builds"
SECTION = "kernel"
LICENSE = "GPLv2"
inherit linux-kernel-base
# Whilst not a module, this ensures we don't get multilib extended (which would make no sense)
inherit module-base
# We need the kernel to be staged (unpacked, patched and configured) before
# we can grab the source and make the source package. We also need the bits from
# ${B} not to change while we install, so virtual/kernel must finish do_compile.
do_install[depends] += "virtual/kernel:do_shared_workdir"
# Need the source, not just the output of populate_sysroot
do_install[depends] += "virtual/kernel:do_install"
# There's nothing to do here, except install the source where we can package it
do_fetch[noexec] = "1"
do_unpack[noexec] = "1"
do_patch[noexec] = "1"
do_configure[noexec] = "1"
do_compile[noexec] = "1"
do_populate_sysroot[noexec] = "1"
S = "${STAGING_KERNEL_DIR}"
B = "${STAGING_KERNEL_BUILDDIR}"
KERNEL_VERSION = "${@get_kernelversion_headers('${S}')}"
PACKAGE_ARCH = "${MACHINE_ARCH}"
do_install() {
kerneldir=${D}${KERNEL_SRC_PATH}
install -d $kerneldir
#
# Copy the staging dir source (and module build support) into the devsrc structure.
# We can keep this copy simple and take everything, since a we'll clean up any build
# artifacts afterwards, and the extra i/o is not significant
#
cd ${B}
find . -type d -name '.git*' -prune -o -path '.debug' -prune -o -type f -print0 | cpio --null -pdlu $kerneldir
cd ${S}
find . -type d -name '.git*' -prune -o -type f -print0 | cpio --null -pdlu $kerneldir
# Explicitly set KBUILD_OUTPUT to ensure that the image directory is cleaned and not
# The main build artifacts. We clean the directory to avoid QA errors on mismatched
# architecture (since scripts and helpers are native format).
KBUILD_OUTPUT="$kerneldir"
oe_runmake -C $kerneldir CC="${KERNEL_CC}" LD="${KERNEL_LD}" clean _mrproper_scripts
# make clean generates an absolute path symlink called "source"
# in $kerneldir points to $kerneldir, which doesn't make any
# sense, so remove it.
if [ -L $kerneldir/source ]; then
bbnote "Removing $kerneldir/source symlink"
rm -f $kerneldir/source
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
mkdir -p $kerneldir/arch/powerpc/lib/
cp ${B}/arch/powerpc/lib/crtsavres.o $kerneldir/arch/powerpc/lib/crtsavres.o
fi
chown -R root:root ${D}
}
# Ensure we don't race against "make scripts" during cpio
do_install[lockfiles] = "${TMPDIR}/kernel-scripts.lock"
PACKAGES = "kernel-devsrc"
FILES_${PN} = "${KERNEL_SRC_PATH}"
RDEPENDS_${PN} = "bc"
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