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esp-idf/tools/cmake/kconfig.cmake

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CMake
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include(ExternalProject)
function(__kconfig_init)
if(${CMAKE_HOST_SYSTEM_NAME} MATCHES "FreeBSD")
set(MAKE_COMMMAND "gmake")
else()
set(MAKE_COMMMAND "make")
endif()
idf_build_get_property(idf_path IDF_PATH)
if(CMAKE_HOST_WIN32 AND DEFINED ENV{MSYSTEM})
# Prefer a prebuilt mconf-idf on Windows
find_program(WINPTY winpty)
unset(MCONF CACHE) # needed when MSYS and CMD is intermixed (cache could contain an incompatible path)
find_program(MCONF mconf-idf)
# Fall back to the old binary which was called 'mconf' not 'mconf-idf'
if(NOT MCONF)
find_program(MCONF mconf)
if(MCONF)
message(WARNING "Falling back to mconf binary '${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 an MSYS2 version of gcc on the PATH to build mconf-idf. "
"Consult the setup docs for ESP-IDF on Windows.")
else()
# Use the existing Makefile to build mconf (out of tree) when needed
#
set(MCONF ${CMAKE_BINARY_DIR}/kconfig_bin/mconf-idf)
set(src_path ${idf_path}/tools/kconfig)
# note: we preemptively remove any build files from the src dir
# as we're building out of tree, but don't want build system to
# #include any from there that were previously build with/for make
externalproject_add(mconf-idf
SOURCE_DIR ${src_path}
CONFIGURE_COMMAND ""
BINARY_DIR "${CMAKE_BINARY_DIR}/kconfig_bin"
BUILD_COMMAND rm -f ${src_path}/zconf.lex.c ${src_path}/zconf.hash.c
COMMAND ${MAKE_COMMMAND} -f ${src_path}/Makefile mconf-idf
BUILD_BYPRODUCTS ${MCONF}
INSTALL_COMMAND ""
EXCLUDE_FROM_ALL 1
)
file(GLOB mconf_srcfiles ${src_path}/*.c)
list(REMOVE_ITEM mconf_srcfiles "${src_path}/zconf.lex.c" "${src_path}/zconf.hash.c")
externalproject_add_stepdependencies(mconf-idf build
${mconf_srcfiles}
${src_path}/Makefile
${CMAKE_CURRENT_LIST_FILE})
unset(mconf_srcfiles)
unset(src_path)
set(menuconfig_depends DEPENDS mconf-idf)
endif()
else()
execute_process(COMMAND "${MCONF}" -v
RESULT_VARIABLE mconf_res
OUTPUT_VARIABLE mconf_out
ERROR_VARIABLE mconf_err)
if(${mconf_res})
message(WARNING "Failed to detect version of mconf-idf. Return code was ${mconf_res}.")
else()
string(STRIP "${mconf_out}" mconf_out)
set(mconf_expected_ver "mconf-v4.6.0.0-idf-20190628-win32")
if(NOT ${mconf_out} STREQUAL "mconf-idf version ${mconf_expected_ver}")
message(WARNING "Unexpected ${mconf_out}. Expected ${mconf_expected_ver}. "
"Please check the ESP-IDF Getting Started guide for version "
"${IDF_VERSION_MAJOR}.${IDF_VERSION_MINOR}.${IDF_VERSION_PATCH} "
"to correct this issue")
else()
message(STATUS "${mconf_out}") # prints: mconf-idf version ....
endif()
endif()
if(WINPTY)
set(MCONF "\"${WINPTY}\" \"${MCONF}\"")
endif()
endif()
idf_build_set_property(__MCONF ${MCONF})
idf_build_set_property(__MENUCONFIG_DEPENDS "${menuconfig_depends}")
endif()
idf_build_get_property(idf_path IDF_PATH)
idf_build_set_property(__ROOT_KCONFIG ${idf_path}/Kconfig)
idf_build_set_property(__ROOT_SDKCONFIG_RENAME ${idf_path}/sdkconfig.rename)
idf_build_set_property(__OUTPUT_SDKCONFIG 1)
endfunction()
#
# Initialize Kconfig-related properties for components.
# This function assumes that all basic properties of the components have been
# set prior to calling it.
#
function(__kconfig_component_init component_target)
__component_get_property(component_dir ${component_target} COMPONENT_DIR)
file(GLOB kconfig "${component_dir}/Kconfig")
__component_set_property(${component_target} KCONFIG "${kconfig}")
file(GLOB kconfig "${component_dir}/Kconfig.projbuild")
__component_set_property(${component_target} KCONFIG_PROJBUILD "${kconfig}")
file(GLOB sdkconfig_rename "${component_dir}/sdkconfig.rename")
__component_set_property(${component_target} SDKCONFIG_RENAME "${sdkconfig_rename}")
endfunction()
#
# Generate the config files and create config related targets and configure
# dependencies.
#
function(__kconfig_generate_config sdkconfig sdkconfig_defaults)
# List all Kconfig and Kconfig.projbuild in known components
idf_build_get_property(component_targets __COMPONENT_TARGETS)
idf_build_get_property(build_component_targets __BUILD_COMPONENT_TARGETS)
foreach(component_target ${component_targets})
if(component_target IN_LIST build_component_targets)
__component_get_property(kconfig ${component_target} KCONFIG)
__component_get_property(kconfig_projbuild ${component_target} KCONFIG_PROJBUILD)
__component_get_property(sdkconfig_rename ${component_target} SDKCONFIG_RENAME)
if(kconfig)
list(APPEND kconfigs ${kconfig})
endif()
if(kconfig_projbuild)
list(APPEND kconfig_projbuilds ${kconfig_projbuild})
endif()
if(sdkconfig_rename)
list(APPEND sdkconfig_renames ${sdkconfig_rename})
endif()
endif()
endforeach()
# Store the list version of kconfigs and kconfig_projbuilds
idf_build_set_property(KCONFIGS "${kconfigs}")
idf_build_set_property(KCONFIG_PROJBUILDS "${kconfig_projbuilds}")
idf_build_get_property(idf_target IDF_TARGET)
idf_build_get_property(idf_path IDF_PATH)
idf_build_get_property(idf_env_fpga __IDF_ENV_FPGA)
string(REPLACE ";" " " kconfigs "${kconfigs}")
string(REPLACE ";" " " kconfig_projbuilds "${kconfig_projbuilds}")
string(REPLACE ";" " " sdkconfig_renames "${sdkconfig_renames}")
# These are the paths for files which will contain the generated "source" lines for COMPONENT_KCONFIGS and
# COMPONENT_KCONFIGS_PROJBUILD
set(kconfigs_projbuild_path "${CMAKE_CURRENT_BINARY_DIR}/kconfigs_projbuild.in")
set(kconfigs_path "${CMAKE_CURRENT_BINARY_DIR}/kconfigs.in")
# Place config-related environment arguments into config.env file
# to work around command line length limits for execute_process
# on Windows & CMake < 3.11
set(config_env_path "${CMAKE_CURRENT_BINARY_DIR}/config.env")
configure_file("${idf_path}/tools/kconfig_new/config.env.in" ${config_env_path})
idf_build_set_property(CONFIG_ENV_PATH ${config_env_path})
if(sdkconfig_defaults)
foreach(sdkconfig_default ${sdkconfig_defaults})
list(APPEND defaults_arg --defaults "${sdkconfig_default}")
endforeach()
endif()
if(sdkconfig_defaults)
foreach(sdkconfig_default ${sdkconfig_defaults})
if(EXISTS "${sdkconfig_default}.${idf_target}")
list(APPEND defaults_arg --defaults "${sdkconfig_default}.${idf_target}")
endif()
endforeach()
endif()
idf_build_get_property(root_kconfig __ROOT_KCONFIG)
idf_build_get_property(root_sdkconfig_rename __ROOT_SDKCONFIG_RENAME)
idf_build_get_property(python PYTHON)
set(prepare_kconfig_files_command
${python} ${idf_path}/tools/kconfig_new/prepare_kconfig_files.py
--env-file ${config_env_path})
set(confgen_basecommand
${python} ${idf_path}/tools/kconfig_new/confgen.py
--kconfig ${root_kconfig}
--sdkconfig-rename ${root_sdkconfig_rename}
--config ${sdkconfig}
${defaults_arg}
--env-file ${config_env_path})
idf_build_get_property(build_dir BUILD_DIR)
set(config_dir ${build_dir}/config)
file(MAKE_DIRECTORY "${config_dir}")
message(STATUS "Project sdkconfig file ${sdkconfig}")
# Generate the config outputs
set(sdkconfig_cmake ${config_dir}/sdkconfig.cmake)
set(sdkconfig_header ${config_dir}/sdkconfig.h)
set(sdkconfig_json ${config_dir}/sdkconfig.json)
set(sdkconfig_json_menus ${config_dir}/kconfig_menus.json)
idf_build_get_property(output_sdkconfig __OUTPUT_SDKCONFIG)
if(output_sdkconfig)
execute_process(
COMMAND ${prepare_kconfig_files_command})
execute_process(
COMMAND ${confgen_basecommand}
--output header ${sdkconfig_header}
--output cmake ${sdkconfig_cmake}
--output json ${sdkconfig_json}
--output json_menus ${sdkconfig_json_menus}
--output config ${sdkconfig}
RESULT_VARIABLE config_result)
else()
execute_process(
COMMAND ${prepare_kconfig_files_command})
execute_process(
COMMAND ${confgen_basecommand}
--output header ${sdkconfig_header}
--output cmake ${sdkconfig_cmake}
--output json ${sdkconfig_json}
--output json_menus ${sdkconfig_json_menus}
RESULT_VARIABLE config_result)
endif()
if(config_result)
message(FATAL_ERROR "Failed to run confgen.py (${confgen_basecommand}). Error ${config_result}")
endif()
# Add the generated config header to build specifications.
idf_build_set_property(INCLUDE_DIRECTORIES ${config_dir} APPEND)
# When sdkconfig file changes in the future, trigger a cmake run
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS "${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 "${idf_path}/tools/kconfig_new/confgen.py")
set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" APPEND PROPERTY
ADDITIONAL_MAKE_CLEAN_FILES "${sdkconfig_header}" "${sdkconfig_cmake}")
idf_build_set_property(SDKCONFIG_HEADER ${sdkconfig_header})
idf_build_set_property(SDKCONFIG_JSON ${sdkconfig_json})
idf_build_set_property(SDKCONFIG_CMAKE ${sdkconfig_cmake})
idf_build_set_property(SDKCONFIG_JSON_MENUS ${sdkconfig_json_menus})
idf_build_set_property(CONFIG_DIR ${config_dir})
if(CMAKE_HOST_WIN32 AND DEFINED ENV{MSYSTEM})
idf_build_get_property(menuconfig_depends __MENUCONFIG_DEPENDS)
idf_build_get_property(mconf __MCONF)
set(MENUCONFIG_CMD ${mconf})
else()
set(MENUCONFIG_CMD ${python} -m menuconfig)
set(TERM_CHECK_CMD ${python} ${idf_path}/tools/check_term.py)
endif()
# Generate the menuconfig target
add_custom_target(menuconfig
${menuconfig_depends}
# create any missing config file, with defaults if necessary
COMMAND ${prepare_kconfig_files_command}
COMMAND ${confgen_basecommand}
--env "IDF_TARGET=${idf_target}"
--env "IDF_ENV_FPGA=${idf_env_fpga}"
--dont-write-deprecated
--output config ${sdkconfig}
COMMAND ${TERM_CHECK_CMD}
COMMAND ${CMAKE_COMMAND} -E env
"COMPONENT_KCONFIGS_SOURCE_FILE=${kconfigs_path}"
"COMPONENT_KCONFIGS_PROJBUILD_SOURCE_FILE=${kconfigs_projbuild_path}"
"IDF_CMAKE=y"
"KCONFIG_CONFIG=${sdkconfig}"
"IDF_TARGET=${idf_target}"
"IDF_ENV_FPGA=${idf_env_fpga}"
${MENUCONFIG_CMD} ${root_kconfig}
# VERBATIM cannot be used here because it cannot handle ${mconf}="winpty mconf-idf" and the escaping must be
# done manually
USES_TERMINAL
# additional run of confgen esures that the deprecated options will be inserted into sdkconfig (for backward
# compatibility)
COMMAND ${confgen_basecommand}
--env "IDF_TARGET=${idf_target}"
--env "IDF_ENV_FPGA=${idf_env_fpga}"
--output config ${sdkconfig}
)
# Custom target to run confserver.py from the build tool
add_custom_target(confserver
COMMAND ${prepare_kconfig_files_command}
COMMAND ${PYTHON} ${IDF_PATH}/tools/kconfig_new/confserver.py
--env-file ${config_env_path}
--kconfig ${IDF_PATH}/Kconfig
--sdkconfig-rename ${root_sdkconfig_rename}
--config ${sdkconfig}
VERBATIM
USES_TERMINAL)
endfunction()
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