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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
# ${B} not to change while we install, so virtual/kernel must finish do_compile.
do_install[depends] += "virtual/kernel:do_shared_workdir"
# Need the source, not just the output of populate_sysroot
do_install[depends] += "virtual/kernel:do_install"
# There's nothing to do here, except install the source where we can package it
do_fetch[noexec] = "1"
do_unpack[noexec] = "1"
do_patch[noexec] = "1"
do_configure[noexec] = "1"
do_compile[noexec] = "1"
deltask do_populate_sysroot
S = "${STAGING_KERNEL_DIR}"
B = "${STAGING_KERNEL_BUILDDIR}"
PACKAGE_ARCH = "${MACHINE_ARCH}"
KERNEL_BUILD_ROOT="${nonarch_base_libdir}/modules/"
do_install() {
kerneldir=${D}${KERNEL_BUILD_ROOT}${KERNEL_VERSION}
install -d $kerneldir
# create the directory structure
rm -f $kerneldir/build
rm -f $kerneldir/source
mkdir -p $kerneldir/build
# for compatibility with some older variants of this package, we
# create a /usr/src/kernel symlink to /lib/modules/<version>/source
mkdir -p ${D}/usr/src
(
cd ${D}/usr/src
lnr ${D}${KERNEL_BUILD_ROOT}${KERNEL_VERSION}/source kernel
)
# for on target purposes, we unify build and source
(
cd $kerneldir
ln -s build source
)
# first copy everything
(
cd ${S}
cp --parents $(find -type f -name "Makefile*" -o -name "Kconfig*") $kerneldir/build
cp --parents $(find -type f -name "Build" -o -name "Build.include") $kerneldir/build
)
# then drop all but the needed Makefiles/Kconfig files
rm -rf $kerneldir/build/scripts
rm -rf $kerneldir/build/include
# now copy in parts from the build that we'll need later
(
cd ${B}
cp Module.symvers $kerneldir/build
cp System.map* $kerneldir/build
if [ -s Module.markers ]; then
cp Module.markers $kerneldir/build
fi
cp -a .config $kerneldir/build
# This scripts copy blow up QA, so for now, we require a more
# complex 'make scripts' to restore these, versus copying them
# here. Left as a reference to indicate that we know the scripts must
# be dealt with.
# cp -a scripts $kerneldir/build
# although module.lds can be regenerated on target via 'make modules_prepare'
# there are several places where 'makes scripts prepare' is done, and that won't
# regenerate the file. So we copy it onto the target as a migration to using
# modules_prepare
cp -a --parents scripts/module.lds $kerneldir/build/ 2>/dev/null || :
if [ -d arch/${ARCH}/scripts ]; then
cp -a arch/${ARCH}/scripts $kerneldir/build/arch/${ARCH}
fi
if [ -f arch/${ARCH}/*lds ]; then
cp -a arch/${ARCH}/*lds $kerneldir/build/arch/${ARCH}
fi
rm -f $kerneldir/build/scripts/*.o
rm -f $kerneldir/build/scripts/*/*.o
if [ "${ARCH}" = "powerpc" ]; then
if [ -e arch/powerpc/lib/crtsavres.S ] ||
[ -e arch/powerpc/lib/crtsavres.o ]; then
cp -a --parents arch/powerpc/lib/crtsavres.[So] $kerneldir/build/
fi
fi
if [ "${ARCH}" = "arm64" ]; then
cp -a --parents arch/arm64/kernel/vdso/vdso.lds $kerneldir/build/
fi
cp -a include $kerneldir/build/include
)
# now grab the chunks from the source tree that we need
(
cd ${S}
cp -a scripts $kerneldir/build
# if our build dir had objtool, it will also be rebuilt on target, so
# we copy what is required for that build
if [ -f ${B}/tools/objtool/objtool ]; then
# these are a few files associated with objtool, since we'll need to
# rebuild it
cp -a --parents tools/build/Build.include $kerneldir/build/
cp -a --parents tools/build/Build $kerneldir/build/
cp -a --parents tools/build/fixdep.c $kerneldir/build/
cp -a --parents tools/scripts/utilities.mak $kerneldir/build/
# extra files, just in case
cp -a --parents tools/objtool/* $kerneldir/build/
cp -a --parents tools/lib/* $kerneldir/build/
cp -a --parents tools/lib/subcmd/* $kerneldir/build/
cp -a --parents tools/include/* $kerneldir/build/
cp -a --parents $(find tools/arch/${ARCH}/ -type f) $kerneldir/build/
fi
if [ "${ARCH}" = "arm64" ]; then
# arch/arm64/include/asm/xen references arch/arm
cp -a --parents arch/arm/include/asm/xen $kerneldir/build/
# arch/arm64/include/asm/opcodes.h references arch/arm
cp -a --parents arch/arm/include/asm/opcodes.h $kerneldir/build/
cp -a --parents arch/arm64/kernel/vdso/*gettimeofday.* $kerneldir/build/
cp -a --parents arch/arm64/kernel/vdso/sigreturn.S $kerneldir/build/
cp -a --parents arch/arm64/kernel/vdso/note.S $kerneldir/build/
cp -a --parents arch/arm64/kernel/vdso/gen_vdso_offsets.sh $kerneldir/build/
cp -a --parents arch/arm64/kernel/module.lds $kerneldir/build/ 2>/dev/null || :
fi
if [ "${ARCH}" = "powerpc" ]; then
# 5.0 needs these files, but don't error if they aren't present in the source
cp -a --parents arch/${ARCH}/kernel/syscalls/syscall.tbl $kerneldir/build/ 2>/dev/null || :
cp -a --parents arch/${ARCH}/kernel/syscalls/syscalltbl.sh $kerneldir/build/ 2>/dev/null || :
cp -a --parents arch/${ARCH}/kernel/syscalls/syscallhdr.sh $kerneldir/build/ 2>/dev/null || :
fi
# include the machine specific headers for ARM variants, if available.
if [ "${ARCH}" = "arm" ]; then
cp -a --parents arch/${ARCH}/mach-*/include $kerneldir/build/
# include a few files for 'make prepare'
cp -a --parents arch/arm/tools/gen-mach-types $kerneldir/build/
cp -a --parents arch/arm/tools/mach-types $kerneldir/build/
# ARM syscall table tools only exist for kernels v4.10 or later
SYSCALL_TOOLS=$(find arch/arm/tools -name "syscall*")
if [ -n "$SYSCALL_TOOLS" ] ; then
cp -a --parents $SYSCALL_TOOLS $kerneldir/build/
fi
cp -a --parents arch/arm/kernel/module.lds $kerneldir/build/
fi
if [ -d arch/${ARCH}/include ]; then
cp -a --parents arch/${ARCH}/include $kerneldir/build/
fi
cp -a include $kerneldir/build
cp -a --parents lib/vdso/* $kerneldir/build/ 2>/dev/null || :
cp -a --parents tools/include/tools/le_byteshift.h $kerneldir/build/
cp -a --parents tools/include/tools/be_byteshift.h $kerneldir/build/
# required for generate missing syscalls prepare phase
cp -a --parents $(find arch/x86 -type f -name "syscall_32.tbl") $kerneldir/build
cp -a --parents $(find arch/arm -type f -name "*.tbl") $kerneldir/build 2>/dev/null || :
if [ "${ARCH}" = "x86" ]; then
# files for 'make prepare' to succeed with kernel-devel
cp -a --parents $(find arch/x86 -type f -name "syscall_32.tbl") $kerneldir/build/
cp -a --parents $(find scripts -type f -name "syscalltbl.sh") $kerneldir/build/
cp -a --parents $(find scripts -type f -name "syscallhdr.sh") $kerneldir/build/
cp -a --parents $(find arch/x86 -type f -name "syscall_64.tbl") $kerneldir/build/
cp -a --parents arch/x86/tools/relocs_32.c $kerneldir/build/
cp -a --parents arch/x86/tools/relocs_64.c $kerneldir/build/
cp -a --parents arch/x86/tools/relocs.c $kerneldir/build/
cp -a --parents arch/x86/tools/relocs_common.c $kerneldir/build/
cp -a --parents arch/x86/tools/relocs.h $kerneldir/build/
cp -a --parents arch/x86/tools/gen-insn-attr-x86.awk $kerneldir/build/ 2>/dev/null || :
cp -a --parents arch/x86/purgatory/purgatory.c $kerneldir/build/
# 4.18 + have unified the purgatory files, so we ignore any errors if
# these files are not present
cp -a --parents arch/x86/purgatory/sha256.h $kerneldir/build/ 2>/dev/null || :
cp -a --parents arch/x86/purgatory/sha256.c $kerneldir/build/ 2>/dev/null || :
cp -a --parents arch/x86/purgatory/stack.S $kerneldir/build/
cp -a --parents arch/x86/purgatory/string.c $kerneldir/build/ 2>/dev/null || :
cp -a --parents arch/x86/purgatory/setup-x86_64.S $kerneldir/build/
cp -a --parents arch/x86/purgatory/entry64.S $kerneldir/build/
cp -a --parents arch/x86/boot/string.h $kerneldir/build/
cp -a --parents arch/x86/boot/string.c $kerneldir/build/
cp -a --parents arch/x86/boot/compressed/string.c $kerneldir/build/ 2>/dev/null || :
cp -a --parents arch/x86/boot/ctype.h $kerneldir/build/
# objtool requires these files
cp -a --parents arch/x86/lib/inat.c $kerneldir/build/ 2>/dev/null || :
cp -a --parents arch/x86/lib/insn.c $kerneldir/build/ 2>/dev/null || :
fi
if [ "${ARCH}" = "mips" ]; then
cp -a --parents arch/mips/Kbuild.platforms $kerneldir/build/
cp --parents $(find -type f -name "Platform") $kerneldir/build
cp --parents arch/mips/boot/tools/relocs* $kerneldir/build
cp -a --parents arch/mips/kernel/asm-offsets.c $kerneldir/build
cp -a --parents kernel/time/timeconst.bc $kerneldir/build
cp -a --parents kernel/bounds.c $kerneldir/build
cp -a --parents Kbuild $kerneldir/build
cp -a --parents arch/mips/kernel/syscalls/*.sh $kerneldir/build 2>/dev/null || :
cp -a --parents arch/mips/kernel/syscalls/*.tbl $kerneldir/build 2>/dev/null || :
cp -a --parents arch/mips/tools/elf-entry.c $kerneldir/build 2>/dev/null || :
fi
# required to build scripts/selinux/genheaders/genheaders
cp -a --parents security/selinux/include/* $kerneldir/build/
# copy any localversion files
cp -a localversion* $kerneldir/build/ 2>/dev/null || :
)
# Make sure the Makefile and version.h have a matching timestamp so that
# external modules can be built
touch -r $kerneldir/build/Makefile $kerneldir/build/include/generated/uapi/linux/version.h
# Copy .config to include/config/auto.conf so "make prepare" is unnecessary.
cp $kerneldir/build/.config $kerneldir/build/include/config/auto.conf
# make the scripts python3 safe. We won't be running these, and if they are
# left as /usr/bin/python rootfs assembly will fail, since we only have python3
# in the RDEPENDS (and the python3 package does not include /usr/bin/python)
for ss in $(find $kerneldir/build/scripts -type f -name '*'); do
sed -i 's,/usr/bin/python2,/usr/bin/env python3,' "$ss"
sed -i 's,/usr/bin/env python2,/usr/bin/env python3,' "$ss"
sed -i 's,/usr/bin/python,/usr/bin/env python3,' "$ss"
done
chown -R root:root ${D}
}
# Ensure we don't race against "make scripts" during cpio
do_install[lockfiles] = "${TMPDIR}/kernel-scripts.lock"
FILES:${PN} = "${KERNEL_BUILD_ROOT} ${KERNEL_SRC_PATH}"
FILES:${PN}-dbg += "${KERNEL_BUILD_ROOT}*/build/scripts/*/.debug/*"
RDEPENDS:${PN} = "bc python3 flex bison ${TCLIBC}-utils"
# 4.15+ needs these next two RDEPENDS
RDEPENDS:${PN} += "openssl-dev util-linux"
# and x86 needs a bit more for 4.15+
RDEPENDS:${PN} += "${@bb.utils.contains('ARCH', 'x86', 'elfutils', '', d)}"
|
