zephyr/cmake/kconfig.cmake

138 lines
4.2 KiB
CMake

# Folders needed for conf/mconf files (kconfig has no method of redirecting all output files).
# conf/mconf needs to be run from a different directory because of: GH-3408
file(MAKE_DIRECTORY ${PROJECT_BINARY_DIR}/kconfig/include/generated)
file(MAKE_DIRECTORY ${PROJECT_BINARY_DIR}/kconfig/include/config)
file(MAKE_DIRECTORY ${PROJECT_BINARY_DIR}/include/generated)
set_ifndef(KCONFIG_ROOT ${ZEPHYR_BASE}/Kconfig)
set(BOARD_DEFCONFIG ${BOARD_DIR}/${BOARD}_defconfig)
set(DOTCONFIG ${PROJECT_BINARY_DIR}/.config)
if(CONF_FILE)
string(REPLACE " " ";" CONF_FILE_AS_LIST "${CONF_FILE}")
endif()
set(ENV{srctree} ${ZEPHYR_BASE})
set(ENV{KERNELVERSION} ${PROJECT_VERSION})
set(ENV{KCONFIG_CONFIG} ${DOTCONFIG})
set(ENV{KCONFIG_AUTOHEADER} ${AUTOCONF_H})
# Set environment variables so that Kconfig can prune Kconfig source
# files for other architectures
set(ENV{ENV_VAR_ARCH} ${ARCH})
set(ENV{ENV_VAR_BOARD_DIR} ${BOARD_DIR})
add_custom_target(
menuconfig
${CMAKE_COMMAND} -E env
srctree=${ZEPHYR_BASE}
KERNELVERSION=${PROJECT_VERSION}
KCONFIG_CONFIG=${DOTCONFIG}
ENV_VAR_ARCH=$ENV{ENV_VAR_ARCH}
ENV_VAR_BOARD_DIR=$ENV{ENV_VAR_BOARD_DIR}
${PYTHON_EXECUTABLE} ${ZEPHYR_BASE}/scripts/kconfig/menuconfig.py ${KCONFIG_ROOT}
WORKING_DIRECTORY ${PROJECT_BINARY_DIR}/kconfig
USES_TERMINAL
)
# Bring in extra configuration files dropped in by the user or anyone else;
# make sure they are set at the end so we can override any other setting
file(GLOB config_files ${APPLICATION_BINARY_DIR}/*.conf)
list(SORT config_files)
set(
merge_config_files
${BOARD_DEFCONFIG}
${CONF_FILE_AS_LIST}
${OVERLAY_CONFIG}
${config_files}
)
# Create a list of absolute paths to the .config sources from
# merge_config_files, which is a mix of absolute and relative paths.
set(merge_config_files_with_absolute_paths "")
foreach(f ${merge_config_files})
if(IS_ABSOLUTE ${f})
set(path ${f})
else()
set(path ${APPLICATION_SOURCE_DIR}/${f})
endif()
list(APPEND merge_config_files_with_absolute_paths ${path})
endforeach()
foreach(f ${merge_config_files_with_absolute_paths})
if(NOT EXISTS ${f} OR IS_DIRECTORY ${f})
message(FATAL_ERROR "File not found: ${f}")
endif()
endforeach()
# Calculate a checksum of merge_config_files to determine if we need
# to re-generate .config
set(merge_config_files_checksum "")
foreach(f ${merge_config_files_with_absolute_paths})
file(MD5 ${f} checksum)
set(merge_config_files_checksum "${merge_config_files_checksum}${checksum}")
endforeach()
# Create a new .config if it does not exists, or if the checksum of
# the dependencies has changed
set(merge_config_files_checksum_file ${PROJECT_BINARY_DIR}/.cmake.dotconfig.checksum)
set(CREATE_NEW_DOTCONFIG "")
if(NOT EXISTS ${DOTCONFIG})
set(CREATE_NEW_DOTCONFIG 1)
else()
# Read out what the checksum was previously
file(READ
${merge_config_files_checksum_file}
merge_config_files_checksum_prev
)
set(CREATE_NEW_DOTCONFIG 1)
if(
${merge_config_files_checksum} STREQUAL
${merge_config_files_checksum_prev}
)
set(CREATE_NEW_DOTCONFIG 0)
endif()
endif()
if(CREATE_NEW_DOTCONFIG)
set(merge_fragments ${merge_config_files})
else()
set(merge_fragments ${DOTCONFIG})
endif()
execute_process(
COMMAND
${PYTHON_EXECUTABLE}
${ZEPHYR_BASE}/scripts/kconfig/kconfig.py
${KCONFIG_ROOT}
${PROJECT_BINARY_DIR}/.config
${PROJECT_BINARY_DIR}/include/generated/autoconf.h
${merge_fragments}
WORKING_DIRECTORY ${APPLICATION_SOURCE_DIR}
# The working directory is set to the app dir such that the user
# can use relative paths in CONF_FILE, e.g. CONF_FILE=nrf5.conf
RESULT_VARIABLE ret
)
if(NOT "${ret}" STREQUAL "0")
message(FATAL_ERROR "command failed with return code: ${ret}")
endif()
if(CREATE_NEW_DOTCONFIG)
file(WRITE
${merge_config_files_checksum_file}
${merge_config_files_checksum}
)
endif()
# Force CMAKE configure when the configuration files changes.
foreach(merge_config_input ${merge_config_files} ${DOTCONFIG})
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${merge_config_input})
endforeach()
add_custom_target(config-sanitycheck DEPENDS ${DOTCONFIG})
# Parse the lines prefixed with CONFIG_ in the .config file from Kconfig
import_kconfig(${DOTCONFIG})