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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 $kerneldir/build
- if [ -d arch/${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
- # we don't usually copy generated files, since they can be rebuilt on the target,
- # but without this file, we get a forced syncconfig run in v5.8+, which prompts and
- # breaks workflows.
- cp -a --parents include/generated/autoconf.h $kerneldir/build 2>/dev/null || :
- )
- # 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 arch/x86 -type f -name "syscalltbl.sh") $kerneldir/build/
- cp -a --parents $(find arch/x86 -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 sure these are at least as old as the .config, or rebuilds will trigger
- touch -r $kerneldir/build/.config $kerneldir/build/include/generated/autoconf.h 2>/dev/null || :
- touch -r $kerneldir/build/.config $kerneldir/build/include/config/auto.conf* 2>/dev/null || :
- if [ -e "$kerneldir/build/include/config/auto.conf.cmd" ]; then
- sed -i 's/ifneq "$(CC)" ".*-linux-.*gcc.*$/ifneq "$(CC)" "gcc"/' "$kerneldir/build/include/config/auto.conf.cmd"
- sed -i 's/ifneq "$(LD)" ".*-linux-.*ld.bfd.*$/ifneq "$(LD)" "ld"/' "$kerneldir/build/include/config/auto.conf.cmd"
- sed -i 's/ifneq "$(HOSTCXX)" ".*$/ifneq "$(HOSTCXX)" "g++"/' "$kerneldir/build/include/config/auto.conf.cmd"
- sed -i 's/ifneq "$(HOSTCC)" ".*$/ifneq "$(HOSTCC)" "gcc"/' "$kerneldir/build/include/config/auto.conf.cmd"
- sed -i 's/ifneq "$(CC_VERSION_TEXT)".*\(gcc.*\)"/ifneq "$(CC_VERSION_TEXT)" "\1"/' "$kerneldir/build/include/config/auto.conf.cmd"
- sed -i 's/ifneq "$(srctree)" ".*"/ifneq "$(srctree)" "."/' "$kerneldir/build/include/config/auto.conf.cmd"
- # we don't build against the defconfig, so make sure it isn't the trigger for syncconfig
- sed -i 's/ifneq "$(KBUILD_DEFCONFIG)".*"\(.*\)"/ifneq "\1" "\1"/' "$kerneldir/build/include/config/auto.conf.cmd"
- fi
- # 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)}"
- # 5.8+ needs gcc-plugins libmpc-dev
- RDEPENDS_${PN} += "gcc-plugins libmpc-dev"
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