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#!/usr/bin/env bash
# -*- coding: utf-8 -*-
# shellcheck source=./rebash/core.sh
declare -rg _mainmoddir="$(dirname "${BASH_SOURCE[0]}")/.." 2> /dev/null
declare -rg _supported_qcow_handlers=("xmount" "kernel")
# NOTE: expects 'qcow_handler' to be set in the environment, else
# will only build support for xmount
build_initialize_components() {
_deps_base_dir="${_mainmoddir}/binaries"
# We might want to move the "binaries" repos from the dnbd3-rootfs module to main repo one day...
# TODO check for its existence using modinfo -k <kernel_version>
if [[ ! -f "${_deps_base_dir}/dnbd3/build/dnbd3.ko" ]] || \
[[ ! -f "${_deps_base_dir}/dnbd3/build/dnbd3-client" ]]; then
logging.info "Could not find dnbd3, building it..."
if ! CMAKE_FLAGS="-DKERNEL_DIR=${kernel_headers}" \
build_compile_dnbd3 "${_deps_base_dir}/dnbd3/"; then
logging.error "Failed to build dnbd3."
return 1
fi
fi
# process qcow handler
logging.info "Supported handlers: ${_supported_qcow_handlers[*]}"
IFS='|' _pattern="^(${_supported_qcow_handlers[*]})$" export _pattern
if [ -z "$qcow_handler" ]; then
logging.info "No qcow handler specified, will use xmount."
elif [[ ! "$qcow_handler" =~ $_pattern ]] ; then
logging.warn "Unknown qcow handler '$qcow_handler' - will use xmount"
fi
if [ -z "$qcow_handler" ] || [ "$qcow_handler" = "xmount" ]; then
if [[ ! -f "${_deps_base_dir}/xmount/trunk/build/src/xmount" ]]; then
logging.info "Could not find xmount binary, building it..."
if ! build_compile_xmount "${_deps_base_dir}/xmount/"; then
logging.error "Failed to build xmount binary."
return 1
fi
fi
if [[ ! -f "${_deps_base_dir}/qemu-xmount/libxmount_input_qemu.so" ]]; then
logging.info "Could not find xmount qemu library, building it..."
if ! build_compile_qemu_xmount "${_deps_base_dir}/qemu-xmount/"; then
logging error "Failed to build xmount qemu library."
return 1
fi
fi
fi
if [ "$qcow_handler" = "kernel" ]; then
if [ ! -f "${_deps_base_dir}/kernel-qcow2-linux/drivers/block/loop/loop.ko" ] \
|| [ ! -f "${_deps_base_dir}/kernel-qcow2-linux/drivers/block/loop/loop_file_fmt_qcow.ko" ] \
|| [ ! -f "${_deps_base_dir}/kernel-qcow2-linux/drivers/block/loop/loop_file_fmt_raw.ko" ]; then
logging.info "Could not find loop kernel modules, building them..."
if ! build_compile_kernel_qcow "${_deps_base_dir}/kernel-qcow2-linux"; then
logging.error "Failed to build qcow loop kernel modules."
return 1
fi
fi
if [ ! -f "${_deps_base_dir}/kernel-qcow2-util-linux/losetup" ]; then
logging.info "Could not find losetup with qcow2 support, building it..."
if ! build_compile_losetup_qcow "${_deps_base_dir}/kernel-qcow2-util-linux"; then
logging.error "Failed to build losetup with qcow support."
return 1
fi
fi
fi
# always compile this helper since it does not cost much to do so
if [[ ! -f "${_deps_base_dir}/systemd-preserve-process-marker/systemd-preserve-process-marker" ]]; then
logging.info "Could not find systemd-preserve-process-marker binary, building it ..."
if ! build_compile_systemd_preserve_process_marker \
"${_deps_base_dir}/systemd-preserve-process-marker/"; then
logging.error "Failed to build systemd-preserve-process-marker"
return 1
fi
fi
logging.info "Compilation of dnbd3-rootfs dependencies succeeded."
return 0
}
clean_components() {
local __doc__='
Removes all compiled kernel specific files.
NOTE: This method is triggered manually and not supported by dracut itself.
Example:
`clean`
'
local _submoddir="${_mainmoddir}/binaries"
build_clean_xmount "${_submoddir}/xmount/"
build_clean_qemu_xmount "${_submoddir}/qemu-xmount/"
build_clean_dnbd3 "${_submoddir}/dnbd3/"
build_clean_losetup_qcow "${_submoddir}/kernel-qcow2-util-linux"
build_clean_dnbd3 "${_submoddir}/dnbd3/"
build_clean_systemd_preserve_process_marker \
"${_submoddir}/systemd-preserve-process-marker/"
return 0
}
# endregion
build_compile_qemu_xmount() {
local __doc__='
Compiles qemu libxmount.
NOTE: expects xmount installation under
$1/../xmount/trunk/build/release_build/
Provides the following file:
"$1/libxmount_input_qemu.so"
Example:
`build_compile_qemu_xmount /qemu_source /xmount/installation`
'
pushd "$1"
local xmount_installation="../xmount/trunk/build/release_build/usr"
[ ! -z "$2" ] && xmount_installation="$2"
./configure --enable-xmount-input --python="$(which python2)" \
--extra-cflags="-std=gnu99" \
--disable-werror \
--extra-cflags="-fPIC" \
--extra-cflags="-I${xmount_installation}/include" \
--extra-cflags="-I${xmount_installation}/include/xmount" \
--disable-fdt --target-list=""
make -j libxmount_input_qemu.so
local ret=$?
popd
return $ret
}
build_clean_qemu_xmount() {
local __doc__='Clean the build of `build_compile_qemu_xmount`.'
pushd "$1"
make clean
local ret=$?
popd
return $ret
}
build_compile_xmount() {
local __doc__='
Compiles xmount.
Provides the xmount installation under:
"$1/trunk/build/release_build/"
Example:
`build_compile_xmount /xmount_source /xmount_source/build /usr`
'
pushd "$1"
local destination_directory="./release_build"
[ ! -z "$2" ] && destination_directory="$2"
local install_prefix="/usr"
[ ! -z "$3" ] && install_prefix="$3"
mkdir --parents trunk/build
cd trunk/build || return 1
cmake -DCMAKE_BUILD_TYPE=Release \
-DCMAKE_INSTALL_PREFIX="$install_prefix" ..
make -j
make install DESTDIR="$destination_directory"
local ret=$?
popd
return $ret
}
build_clean_xmount() {
local __doc__='Clean the build of `build_compile_xmount`.'
rm --recursive --force "$1/trunk/build"
}
build_compile_dnbd3() {
local __doc__='
Compiles dnbd3 kernel module and client.
Provides the following file:
"$1/build/dnbd3.ko"
"$1/build/dnbd3-client"
Examples:
`build_compile_dnbd3 path/to/dnbd3/source/`
Passing the kernel version to cmake:
`CMAKE_FLAGS="-DKERNEL_VERSION=4.14.6-openslx+" \
build_compile_dnbd3 path/to/dnbd3/source/`
'
pushd "$1"
# NOTE: The generic way would be: "./build.sh" but this tries to build
# more than we really need and takes more time.
mkdir --parents build
cd build
# Inject CMAKE_FLAGS as a way to control how cmake is called,
# e.g. to pass the kernel version
cmake ${CMAKE_FLAGS} \
-DBUILD_FUSE_CLIENT=OFF \
-DBUILD_KERNEL_MODULE=ON \
-DBUILD_SERVER=OFF \
-DBUILD_STRESSTEST=OFF \
../
make -j dnbd3 dnbd3-client
local ret=$?
popd
return $ret
}
build_clean_dnbd3() {
local __doc__='Clean the build of `build_compile_dnbd3`.'
rm --recursive --force "$1/build"
return $?
}
build_compile_kernel_qcow() {
pushd "$1"
# https://lab.ks.uni-freiburg.de/projects/kernel-qcow2/wiki
if [ -z "$kernel_headers" ]; then
logging.error "Kernel header directory not set, ignoring."
return 1
fi
mkdir -p "${kernel_headers}/drivers/block/loop"
for _file in \
include/uapi/linux/loop.h \
drivers/block/Kconfig \
drivers/block/loop/loop_main.h \
drivers/block/loop/loop_file_fmt.h \
drivers/block/loop/Kconfig; do
cp -f "${_file}" "${kernel_headers}/${_file}"
done
(
set -o errexit
make -C "$kernel_headers" CONFIG_BLK_DEV_LOOP=m \
M=$(pwd)/drivers/block/loop loop.ko
make -C "$kernel_headers" CONFIG_BLK_DEV_LOOP_FILE_FMT_RAW=m \
M=$(pwd)/drivers/block/loop loop_file_fmt_raw.ko
make -C "$kernel_headers" CONFIG_BLK_DEV_LOOP_FILE_FMT_QCOW=m \
M=$(pwd)/drivers/block/loop loop_file_fmt_qcow.ko
)
local ret=$?
popd
return $ret
}
build_clean_kernel_qcow() {
if [ -z "$kernel_headers" ]; then
logging.error "Kernel header directory not set, ignoring."
return 1
fi
pushd "$kernel_headers"
make -C "$kernel_headers" M=$(pwd)/drivers/block/loop clean
local ret=$?
popd
return $ret
}
build_compile_losetup_qcow() {
pushd "$1"
(
set -o errexit
./autogen.sh
./configure
make -j losetup
)
local ret=$?
popd
return $ret
}
build_clean_losetup_qcow() {
pushd "$1"
make clean
local ret=$?
popd
return $ret
}
build_compile_systemd_preserve_process_marker() {
local __doc__='
Compiles simple c program.
Examples:
`build_compile_systemd_preserve_process_marker path/to/program/folder`
'
pushd "$1"
make
local ret=$?
popd
return $ret
}
build_clean_systemd_preserve_process_marker() {
local __doc__='
Clean the build of
`build_compile_systemd_preserve_process_marker`.
'
pushd "$1"
make clean
local ret=$?
popd
return $ret
}
# region vim modline
# vim: set tabstop=4 shiftwidth=4 expandtab:
# vim: foldmethod=marker foldmarker=region,endregion:
# endregion
|
