OVMS3-idf/tools/cmake/kconfig.cmake

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include(ExternalProject)
macro(kconfig_set_variables)
set(MCONF kconfig_bin/mconf)
set_default(SDKCONFIG ${PROJECT_PATH}/sdkconfig)
set(SDKCONFIG_HEADER ${CMAKE_BINARY_DIR}/sdkconfig.h)
set(SDKCONFIG_CMAKE ${CMAKE_BINARY_DIR}/sdkconfig.cmake)
set(SDKCONFIG_JSON ${CMAKE_BINARY_DIR}/sdkconfig.json)
set(ROOT_KCONFIG ${IDF_PATH}/Kconfig)
set_default(SDKCONFIG_DEFAULTS "${SDKCONFIG}.defaults")
endmacro()
# Use the existing Makefile to build mconf (out of tree) when needed
#
# TODO: Download(?) a prebuilt mingw mconf on Windows
externalproject_add(mconf
SOURCE_DIR ${IDF_PATH}/tools/kconfig
CONFIGURE_COMMAND ""
BINARY_DIR "kconfig_bin"
BUILD_COMMAND make -f ${IDF_PATH}/tools/kconfig/Makefile mconf
BUILD_BYPRODUCTS ${MCONF}
INSTALL_COMMAND ""
EXCLUDE_FROM_ALL 1
)
# Find all Kconfig files for all components
function(kconfig_process_config)
file(MAKE_DIRECTORY "${CMAKE_BINARY_DIR}/include/config")
set(kconfigs)
set(kconfigs_projbuild)
# Find Kconfig and Kconfig.projbuild for each component as applicable
# if any of these change, cmake should rerun
foreach(dir ${COMPONENT_PATHS} "${CMAKE_SOURCE_DIR}/main")
file(GLOB kconfig "${dir}/Kconfig")
if(kconfig)
set(kconfigs "${kconfigs} ${kconfig}")
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${kconfig})
endif()
file(GLOB kconfig ${dir}/Kconfig.projbuild)
if(kconfig)
set(kconfigs_projbuild "${kconfigs_projbuild} ${kconfig}")
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${kconfig})
endif()
endforeach()
if(EXISTS ${SDKCONFIG_DEFAULTS})
set(defaults_arg --defaults "${SDKCONFIG_DEFAULTS}")
endif()
set(confgen_basecommand
${PYTHON} ${IDF_PATH}/tools/kconfig_new/confgen.py
--kconfig ${ROOT_KCONFIG}
--config ${SDKCONFIG}
${defaults_arg}
--create-config-if-missing
--env "COMPONENT_KCONFIGS=${kconfigs}"
--env "COMPONENT_KCONFIGS_PROJBUILD=${kconfigs_projbuild}")
# Generate the menuconfig target (uses C-based mconf tool)
add_custom_target(menuconfig
DEPENDS mconf
# create any missing config file, with defaults if necessary
COMMAND ${confgen_basecommand} --output config ${SDKCONFIG}
COMMAND ${CMAKE_COMMAND} -E env
"COMPONENT_KCONFIGS=${kconfigs}"
"COMPONENT_KCONFIGS_PROJBUILD=${kconfigs_projbuild}"
"KCONFIG_CONFIG=${SDKCONFIG}"
${MCONF} ${ROOT_KCONFIG}
VERBATIM
USES_TERMINAL)
# Generate configuration output via confgen.py
# makes sdkconfig.h and skdconfig.cmake
#
# This happens during the cmake run not during the build
execute_process(COMMAND ${confgen_basecommand}
--output header ${SDKCONFIG_HEADER}
--output cmake ${SDKCONFIG_CMAKE}
--output json ${SDKCONFIG_JSON}
RESULT_VARIABLE config_result)
if(config_result)
message(FATAL_ERROR "Failed to run confgen.py (${confgen_basecommand}). Error ${config_result}")
endif()
# When sdkconfig file changes in the future, trigger a cmake run
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS "${SDKCONFIG}")
# Ditto if either of the generated files are missing/modified (this is a bit irritating as it means
# you can't edit these manually without them being regenerated, but I don't know of a better way...)
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS "${SDKCONFIG_HEADER}")
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS "${SDKCONFIG_CMAKE}")
# Or if the config generation tool changes
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS "${IDF_PATH}/tools/kconfig_new/confgen.py")
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS "${IDF_PATH}/tools/kconfig_new/kconfiglib.py")
set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" APPEND PROPERTY
ADDITIONAL_MAKE_CLEAN_FILES
"${SDKCONFIG_HEADER}" "${SDKCONFIG_CMAKE}")
endfunction()