esp-idf/tools/cmake/kconfig.cmake
2018-11-11 21:46:02 +08:00

175 lines
6.6 KiB
CMake

include(ExternalProject)
macro(kconfig_set_variables)
set(CONFIG_DIR ${CMAKE_BINARY_DIR}/config)
set_default(SDKCONFIG ${PROJECT_PATH}/sdkconfig)
set(SDKCONFIG_HEADER ${CONFIG_DIR}/sdkconfig.h)
set(SDKCONFIG_CMAKE ${CONFIG_DIR}/sdkconfig.cmake)
set(SDKCONFIG_JSON ${CONFIG_DIR}/sdkconfig.json)
set(KCONFIG_JSON_MENUS ${CONFIG_DIR}/kconfig_menus.json)
set(ROOT_KCONFIG ${IDF_PATH}/Kconfig)
set_default(SDKCONFIG_DEFAULTS "${SDKCONFIG}.defaults")
# ensure all source files can include sdkconfig.h
include_directories("${CONFIG_DIR}")
endmacro()
if(CMAKE_HOST_WIN32)
# Prefer a prebuilt mconf-idf on Windows
if(DEFINED ENV{MSYSTEM})
find_program(WINPTY winpty)
else()
unset(WINPTY CACHE) # in case previous CMake run was in a tty and this one is not
endif()
find_program(MCONF mconf-idf)
# Fall back to the old binary which was called 'mconf' not 'mconf-idf'
if(NOT MCONF)
find_program(MCONF mconf)
if(MCONF)
message(WARNING "Falling back to mconf binary '${MCONF}' not mconf-idf. "
"This is probably because an old version of IDF mconf is installed and this is fine. "
"However if there are config problems please check the Getting Started guide for your platform.")
endif()
endif()
if(NOT MCONF)
find_program(NATIVE_GCC gcc)
if(NOT NATIVE_GCC)
message(FATAL_ERROR
"Windows requires a prebuilt mconf-idf for your platform "
"on the PATH, or an MSYS2 version of gcc on the PATH to build mconf-idf. "
"Consult the setup docs for ESP-IDF on Windows.")
endif()
elseif(WINPTY)
set(MCONF "${WINPTY}" "${MCONF}")
endif()
endif()
if(NOT MCONF)
# Use the existing Makefile to build mconf (out of tree) when needed
#
set(MCONF kconfig_bin/mconf-idf)
externalproject_add(mconf-idf
SOURCE_DIR ${IDF_PATH}/tools/kconfig
CONFIGURE_COMMAND ""
BINARY_DIR "kconfig_bin"
BUILD_COMMAND make -f ${IDF_PATH}/tools/kconfig/Makefile mconf-idf
BUILD_BYPRODUCTS ${MCONF}
INSTALL_COMMAND ""
EXCLUDE_FROM_ALL 1
)
file(GLOB mconf_srcfiles ${IDF_PATH}/tools/kconfig/*.c)
externalproject_add_stepdependencies(mconf-idf build
${mconf_srcfiles}
${IDF_PATH}/tools/kconfig/Makefile
${CMAKE_CURRENT_LIST_FILE})
unset(mconf_srcfiles)
set(menuconfig_depends DEPENDS mconf-idf)
endif()
# Find all Kconfig files for all components
function(kconfig_process_config)
file(MAKE_DIRECTORY "${CONFIG_DIR}")
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 ${BUILD_COMPONENT_PATHS})
file(GLOB kconfig "${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()
if(EXISTS "${SDKCONFIG_DEFAULTS}.${IDF_TARGET}")
list(APPEND defaults_arg --defaults "${SDKCONFIG_DEFAULTS}.${IDF_TARGET}")
endif()
# Set these in the parent scope, so that they can be written to project_description.json
set(kconfigs "${kconfigs}")
set(COMPONENT_KCONFIGS "${kconfigs}" PARENT_SCOPE)
set(COMPONENT_KCONFIGS_PROJBUILD "${kconfigs_projbuild}" PARENT_SCOPE)
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}"
--env "IDF_CMAKE=y")
# Generate the menuconfig target (uses C-based mconf-idf tool, either prebuilt or via mconf-idf target above)
add_custom_target(menuconfig
${menuconfig_depends}
# 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=${kconfigs_projbuild}"
"IDF_CMAKE=y"
"KCONFIG_CONFIG=${SDKCONFIG}"
${MCONF} ${ROOT_KCONFIG}
VERBATIM
USES_TERMINAL)
# Custom target to run confserver.py from the build tool
add_custom_target(confserver
COMMAND ${CMAKE_COMMAND} -E env
"COMPONENT_KCONFIGS=${kconfigs}"
"COMPONENT_KCONFIGS_PROJBUILD=${kconfigs_projbuild}"
${IDF_PATH}/tools/kconfig_new/confserver.py --kconfig ${IDF_PATH}/Kconfig --config ${SDKCONFIG}
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}
--output json_menus ${KCONFIG_JSON_MENUS}
RESULT_VARIABLE config_result)
if(config_result)
message(FATAL_ERROR "Failed to run confgen.py (${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()