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| author | Manuel Bentele | 2020-10-13 16:19:21 +0200 |
|---|---|---|
| committer | Manuel Bentele | 2020-10-13 16:19:21 +0200 |
| commit | 111a2350ac1967b62ffa3024371819c812c46844 (patch) | |
| tree | e31808a39291fe3bfa53e921a51dc74be36468ae /kernel/cmake/kernel.cmake | |
| parent | Added separate Linux kernel install directory and added version to kernel mod... (diff) | |
| download | xloop-111a2350ac1967b62ffa3024371819c812c46844.tar.gz xloop-111a2350ac1967b62ffa3024371819c812c46844.tar.xz xloop-111a2350ac1967b62ffa3024371819c812c46844.zip | |
Added support to keep track of kernel file changes in CMake
With this patch, CMake keeps track of changes to original xloop Linux
kernel source files. CMake will copy each file if a change is detected
without rebuiling the CMake build and cache files.
Futhrmore, changed default paths of udev rules and xloop kernel modules
to be installed.
Diffstat (limited to 'kernel/cmake/kernel.cmake')
| -rw-r--r-- | kernel/cmake/kernel.cmake | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/kernel/cmake/kernel.cmake b/kernel/cmake/kernel.cmake index 0d843e6..811ce86 100644 --- a/kernel/cmake/kernel.cmake +++ b/kernel/cmake/kernel.cmake @@ -6,15 +6,31 @@ # macro to define kernel module targets macro(add_kernel_module MODULE_NAME KERNEL_BUILD_DIR KERNEL_INSTALL_DIR MODULE_MACRO MODULE_SOURCE_FILES MODULE_HEADER_FILES BUILD_SOURCE_FILE) + # create directory for kernel module + file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME}) # copy build source file - file(COPY ${BUILD_SOURCE_FILE} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME}) + get_filename_component(BUILD_SOURCE_FILENAME ${BUILD_SOURCE_FILE} NAME) + add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME}/${BUILD_SOURCE_FILENAME} + COMMAND ${CMAKE_COMMAND} -E copy_if_different ${BUILD_SOURCE_FILE} ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME} + DEPENDS ${BUILD_SOURCE_FILE}) + set(BUILD_SOURCE_FILE_PREPARED ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME}/${BUILD_SOURCE_FILENAME}) # copy source files foreach(MODULE_SOURCE_FILE ${MODULE_SOURCE_FILES}) - file(COPY ${MODULE_SOURCE_FILE} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME}) + get_filename_component(MODULE_SOURCE_FILENAME ${MODULE_SOURCE_FILE} NAME) + add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME}/${MODULE_SOURCE_FILENAME} + COMMAND ${CMAKE_COMMAND} -E copy_if_different ${MODULE_SOURCE_FILE} ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME} + DEPENDS ${MODULE_SOURCE_FILE}) + set(MODULE_SOURCE_FILES_PREPARED ${MODULE_SOURCE_FILES_PREPARED} + ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME}/${MODULE_SOURCE_FILENAME}) endforeach() # copy header files foreach(MODULE_HEADER_FILE ${MODULE_HEADER_FILES}) - file(COPY ${MODULE_HEADER_FILE} DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME}) + get_filename_component(MODULE_HEADER_FILENAME ${MODULE_HEADER_FILE} NAME) + add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME}/${MODULE_HEADER_FILENAME} + COMMAND ${CMAKE_COMMAND} -E copy_if_different ${MODULE_HEADER_FILE} ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME} + DEPENDS ${MODULE_HEADER_FILE}) + set(MODULE_HEADER_FILES_PREPARED ${MODULE_HEADER_FILES_PREPARED} + ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME}/${MODULE_HEADER_FILENAME}) endforeach() # check if module depends on another module if(NOT ${ARGV7} STREQUAL "") @@ -28,9 +44,10 @@ macro(add_kernel_module MODULE_NAME KERNEL_BUILD_DIR KERNEL_INSTALL_DIR MODULE_M KBUILD_EXTRA_SYMBOLS=${MODULE_EXTRA_SYMBOLS}) add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME}/${MODULE_NAME}.ko COMMAND ${MODULE_BUILD_COMMAND} - WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME} - DEPENDS ${MODULE_SOURCE_FILES} ${MODULE_HEADER_FILES} ${BUILD_SOURCE_FILE} - VERBATIM) + WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME} + COMMENT "Build kernel module ${MODULE_NAME}" + DEPENDS ${BUILD_SOURCE_FILE_PREPARED} ${MODULE_HEADER_FILES_PREPARED} ${MODULE_SOURCE_FILES_PREPARED} + VERBATIM) add_custom_target(${MODULE_NAME} ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME}/${MODULE_NAME}.ko ${ARGV7}) install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${MODULE_NAME}/${MODULE_NAME}.ko DESTINATION ${KERNEL_INSTALL_DIR} |