Files
poky/meta/recipes-kernel/linux/kernel-devsrc.bb
Bruce Ashfield 4c62122ecb kernel-devsrc: remove python2 dependency
Witht the approaching EOL of python2, the kernel packages need to
be updated to depend on python3.

The core kernel scripts are now python3 safe, making the RDEPENDS
change relatively simple.

but

There are some scripts that are captured in the devsrc files that
are not used, but reference /usr/bin/python. The python3 package
does not provide /usr/bin/python so any package managers with
automatic dependency detection will fail to assemble a rootfs due
to the missing intepreter.

We could drop the scripts from the source capture, but that
risks dropping something that we need in certain operations and
we'd miss when they are updated in tree to explicitly call python3
(since they won't be revisited often). Light testing shows that the
scripts do run with python3, so rather than removing them, we change
the interpreter once they are copied, and automatic dependency
detection won't cause us rootfs assembly issues.

(From OE-Core rev: 6745088b6c9e5c70df59d667347ede470df9a91d)

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2019-08-30 17:10:28 +01:00

266 lines
10 KiB
BlitzBasic

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 .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
)
# 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/str_error_r.c $kerneldir/build/
cp -a --parents tools/lib/string.c $kerneldir/build/
cp -a --parents tools/lib/subcmd/* $kerneldir/build/
cp -a --parents tools/include/* $kerneldir/build/
fi
if [ "${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.S $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 $kerneldir/build/
fi
if [ "${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 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 arch/x86/entry/syscalls/syscall_32.tbl $kerneldir/build
if [ "${ARCH}" = "x86" ]; then
# files for 'make prepare' to succeed with kernel-devel
cp -a --parents arch/x86/entry/syscalls/syscall_32.tbl $kerneldir/build/
cp -a --parents arch/x86/entry/syscalls/syscalltbl.sh $kerneldir/build/
cp -a --parents arch/x86/entry/syscalls/syscallhdr.sh $kerneldir/build/
cp -a --parents arch/x86/entry/syscalls/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/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 $kerneldir/build/
fi
if [ "${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)}"