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//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)}"