zephyr/cmake/zephyr_module.cmake

55 lines
1.5 KiB
CMake

# SPDX-License-Identifier: Apache-2.0
# This cmake file provides functionality to import additional out-of-tree, OoT
# CMakeLists.txt and Kconfig files into Zephyr build system.
# It uses -DZEPHYR_MODULES=<oot-path-to-module>[;<additional-oot-module(s)>]
# given to CMake for a list of folders to search.
# It looks for: <oot-module>/zephyr/module.yml or
# <oot-module>/zephyr/CMakeLists.txt
# to load the oot-module into Zephyr build system.
# If west is available, it uses `west list` to obtain a list of projects to
# search for zephyr/module.yml
if(ZEPHYR_MODULES)
set(ZEPHYR_MODULES_ARG "--modules" ${ZEPHYR_MODULES})
endif()
if(ZEPHYR_EXTRA_MODULES)
set(ZEPHYR_EXTRA_MODULES_ARG "--extra-modules" ${ZEPHYR_EXTRA_MODULES})
endif()
set(KCONFIG_MODULES_FILE ${CMAKE_BINARY_DIR}/Kconfig.modules)
if(WEST)
set(WEST_ARG "--west-path" ${WEST})
endif()
if(WEST OR ZEPHYR_MODULES)
# Zephyr module uses west, so only call it if west is installed or
# ZEPHYR_MODULES was provided as argument to CMake.
execute_process(
COMMAND
${PYTHON_EXECUTABLE} ${ZEPHYR_BASE}/scripts/zephyr_module.py
${WEST_ARG}
${ZEPHYR_MODULES_ARG}
${ZEPHYR_EXTRA_MODULES_ARG}
--kconfig-out ${KCONFIG_MODULES_FILE}
--cmake-out ${CMAKE_BINARY_DIR}/zephyr_modules.txt
ERROR_VARIABLE
zephyr_module_error_text
RESULT_VARIABLE
zephyr_module_return
)
if(${zephyr_module_return})
message(FATAL_ERROR "${zephyr_module_error_text}")
endif()
else()
file(WRITE ${KCONFIG_MODULES_FILE}
"# No west and no modules\n"
)
endif()