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cmake_minimum_required(VERSION 3.10)
# set the project name
project(xloop-kernel)
set (CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${CMAKE_CURRENT_SOURCE_DIR}/cmake")
include(kernel)
# set C flags for a Linux kernel module
set(KERNEL_C_FLAGS "-DCONFIG_BLK_DEV_XLOOP_MIN_COUNT=${BLK_DEV_XLOOP_MIN_COUNT} -DXLOOP_MAJOR=${XLOOP_MAJOR} -DXLOOP_CTRL_MINOR=${XLOOP_CTRL_MINOR} -DVERSION=${VERSION}"
CACHE STRING "C flags to be used for building the kernel module")
# set C flags for the debug mode of a Linux kernel module
set(KERNEL_C_FLAGS_DEBUG "-g -DDEBUG"
CACHE STRING "Additional C flags to be used for building the kernel module in debug mode")
# append debug C flags if debug mode is enabled
if(CMAKE_BUILD_TYPE MATCHES Debug)
set(KERNEL_C_FLAGS "${KERNEL_C_FLAGS} ${KERNEL_C_FLAGS_DEBUG}")
endif(CMAKE_BUILD_TYPE MATCHES Debug)
# xloop main Linux kernel module
set(KERNEL_MODULE_XLOOP_SOURCE_FILES ${CMAKE_CURRENT_SOURCE_DIR}/xloop_file_fmt.c
${CMAKE_CURRENT_SOURCE_DIR}/xloop_main.c)
set(KERNEL_MODULE_XLOOP_HEADER_FILES ${CMAKE_CURRENT_SOURCE_DIR}/xloop_file_fmt.h
${CMAKE_CURRENT_SOURCE_DIR}/xloop_main.h
${CMAKE_CURRENT_SOURCE_DIR}/uapi_xloop.h)
add_kernel_module(xloop "${KERNEL_BUILD_DIR}"
"${KERNEL_INSTALL_DIR}"
"CONFIG_BLK_DEV_XLOOP=m"
"${KERNEL_MODULE_XLOOP_SOURCE_FILES}"
"${KERNEL_MODULE_XLOOP_HEADER_FILES}"
${CMAKE_CURRENT_SOURCE_DIR}/Kbuild)
# xloop_file_fmt_raw Linux kernel module
set(KERNEL_MODULE_XLOOP_RAW_SOURCE_FILES ${CMAKE_CURRENT_SOURCE_DIR}/xloop_file_fmt_raw.c)
set(KERNEL_MODULE_XLOOP_RAW_HEADER_FILES ${CMAKE_CURRENT_SOURCE_DIR}/xloop_file_fmt.h
${CMAKE_CURRENT_SOURCE_DIR}/xloop_main.h
${CMAKE_CURRENT_SOURCE_DIR}/uapi_xloop.h)
add_kernel_module(xloop_file_fmt_raw "${KERNEL_BUILD_DIR}"
"${KERNEL_INSTALL_DIR}"
"CONFIG_BLK_DEV_XLOOP_FILE_FMT_RAW=m"
"${KERNEL_MODULE_XLOOP_RAW_SOURCE_FILES}"
"${KERNEL_MODULE_XLOOP_RAW_HEADER_FILES}"
${CMAKE_CURRENT_SOURCE_DIR}/Kbuild
xloop)
# xloop_file_fmt_qcow Linux kernel module
set(KERNEL_MODULE_XLOOP_QCOW_SOURCE_FILES ${CMAKE_CURRENT_SOURCE_DIR}/xloop_file_fmt_qcow_cache.c
${CMAKE_CURRENT_SOURCE_DIR}/xloop_file_fmt_qcow_cluster.c
${CMAKE_CURRENT_SOURCE_DIR}/xloop_file_fmt_qcow_main.c)
set(KERNEL_MODULE_XLOOP_QCOW_HEADER_FILES ${CMAKE_CURRENT_SOURCE_DIR}/xloop_file_fmt_qcow_cache.h
${CMAKE_CURRENT_SOURCE_DIR}/xloop_file_fmt_qcow_cluster.h
${CMAKE_CURRENT_SOURCE_DIR}/xloop_file_fmt_qcow_main.h
${CMAKE_CURRENT_SOURCE_DIR}/xloop_file_fmt.h
${CMAKE_CURRENT_SOURCE_DIR}/xloop_main.h
${CMAKE_CURRENT_SOURCE_DIR}/uapi_xloop.h)
add_kernel_module(xloop_file_fmt_qcow "${KERNEL_BUILD_DIR}"
"${KERNEL_INSTALL_DIR}"
"CONFIG_BLK_DEV_XLOOP_FILE_FMT_QCOW=m"
"${KERNEL_MODULE_XLOOP_QCOW_SOURCE_FILES}"
"${KERNEL_MODULE_XLOOP_QCOW_HEADER_FILES}"
${CMAKE_CURRENT_SOURCE_DIR}/Kbuild
xloop)
if(${CMAKE_BUILD_TYPE} MATCHES Debug)
add_subdirectory(tests)
endif()
# install udev rules for xloop devices exposed by the xloop kernel module
install(PROGRAMS ${CMAKE_CURRENT_SOURCE_DIR}/udev/50-xloop.rules
DESTINATION /lib/udev/rules.d
PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
COMPONENT main)
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