6ed5ac7111
Adds support for SoC overlay files which go in a ``socs`` folder in application folders and functions similar to the ``boards`` folder, but works for SoCs instead of boards Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
109 lines
4.7 KiB
CMake
109 lines
4.7 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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#
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# Copyright (c) 2021, Nordic Semiconductor ASA
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# Zephyr build system configuration files.
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#
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# Locate the Kconfig and DT config files that are to be used.
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# Also, locate the appropriate application config directory.
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#
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# Outcome:
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# The following variables will be defined when this CMake module completes:
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#
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# - CONF_FILE: List of Kconfig fragments
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# - EXTRA_CONF_FILE: List of additional Kconfig fragments
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# - DTC_OVERLAY_FILE: List of devicetree overlay files
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# - EXTRA_DTC_OVERLAY_FILE List of additional devicetree overlay files
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# - DTS_EXTRA_CPPFLAGS List of additional devicetree preprocessor defines
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# - APPLICATION_CONFIG_DIR: Root folder for application configuration
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#
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# If any of the above variables are already set when this CMake module is
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# loaded, then no changes to the variable will happen.
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#
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# Variables set by this module and not mentioned above are considered internal
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# use only and may be removed, renamed, or re-purposed without prior notice.
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include_guard(GLOBAL)
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include(extensions)
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# Merge in variables from other sources (e.g. sysbuild)
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zephyr_get(FILE_SUFFIX SYSBUILD GLOBAL)
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zephyr_get(APPLICATION_CONFIG_DIR)
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if(DEFINED APPLICATION_CONFIG_DIR)
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string(CONFIGURE ${APPLICATION_CONFIG_DIR} APPLICATION_CONFIG_DIR)
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if(NOT IS_ABSOLUTE ${APPLICATION_CONFIG_DIR})
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get_filename_component(APPLICATION_CONFIG_DIR ${APPLICATION_CONFIG_DIR} ABSOLUTE)
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endif()
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else()
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# Application config dir is not set, so we default to the application
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# source directory as configuration directory.
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set(APPLICATION_CONFIG_DIR ${APPLICATION_SOURCE_DIR})
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endif()
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zephyr_get(CONF_FILE SYSBUILD LOCAL)
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if(NOT DEFINED CONF_FILE)
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zephyr_file(CONF_FILES ${APPLICATION_CONFIG_DIR} KCONF CONF_FILE NAMES "prj.conf" SUFFIX ${FILE_SUFFIX} REQUIRED)
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zephyr_file(CONF_FILES ${APPLICATION_CONFIG_DIR}/socs KCONF CONF_FILE QUALIFIERS SUFFIX ${FILE_SUFFIX})
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zephyr_file(CONF_FILES ${APPLICATION_CONFIG_DIR}/boards KCONF CONF_FILE SUFFIX ${FILE_SUFFIX})
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else()
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string(CONFIGURE "${CONF_FILE}" CONF_FILE_EXPANDED)
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string(REPLACE " " ";" CONF_FILE_AS_LIST "${CONF_FILE_EXPANDED}")
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list(LENGTH CONF_FILE_AS_LIST CONF_FILE_LENGTH)
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if(${CONF_FILE_LENGTH} EQUAL 1)
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get_filename_component(CONF_FILE_NAME ${CONF_FILE} NAME)
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if(${CONF_FILE_NAME} MATCHES "prj_(.*).conf")
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set(CONF_FILE_BUILD_TYPE ${CMAKE_MATCH_1})
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zephyr_file(CONF_FILES ${APPLICATION_CONFIG_DIR}/boards KCONF CONF_FILE
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BUILD ${CONF_FILE_BUILD_TYPE}
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)
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set(CONF_FILE_FORCE_CACHE FORCE)
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endif()
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endif()
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endif()
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set(APPLICATION_CONFIG_DIR ${APPLICATION_CONFIG_DIR} CACHE INTERNAL "The application configuration folder" FORCE)
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set(CONF_FILE ${CONF_FILE} CACHE STRING "If desired, you can build the application using\
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the configuration settings specified in an alternate .conf file using this parameter. \
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These settings will override the settings in the application’s .config file or its default .conf file.\
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Multiple files may be listed, e.g. CONF_FILE=\"prj1.conf;prj2.conf\" \
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The CACHED_CONF_FILE is internal Zephyr variable used between CMake runs. \
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To change CONF_FILE, use the CONF_FILE variable." ${CONF_FILE_FORCE_CACHE})
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# The CONF_FILE variable is now set to its final value.
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zephyr_boilerplate_watch(CONF_FILE)
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zephyr_get(DTC_OVERLAY_FILE SYSBUILD LOCAL)
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# If DTC_OVERLAY_FILE is not set by the user, look for SoC and board-specific overlays
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# in the 'boards' and `soc` configuration subdirectories.
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if(NOT DEFINED DTC_OVERLAY_FILE)
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zephyr_file(CONF_FILES ${APPLICATION_CONFIG_DIR}/socs DTS DTC_OVERLAY_FILE QUALIFIERS SUFFIX ${FILE_SUFFIX})
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zephyr_file(CONF_FILES ${APPLICATION_CONFIG_DIR}/boards DTS DTC_OVERLAY_FILE SUFFIX ${FILE_SUFFIX})
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endif()
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# If still not found, search for other overlays in the configuration directory.
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if(NOT DEFINED DTC_OVERLAY_FILE)
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zephyr_file(CONF_FILES ${APPLICATION_CONFIG_DIR} DTS DTC_OVERLAY_FILE)
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if(NOT DEFINED DTC_OVERLAY_FILE)
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zephyr_file(CONF_FILES ${APPLICATION_CONFIG_DIR} DTS DTC_OVERLAY_FILE
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NAMES "app.overlay" SUFFIX ${FILE_SUFFIX}
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)
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endif()
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endif()
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set(DTC_OVERLAY_FILE ${DTC_OVERLAY_FILE} CACHE STRING "If desired, you can \
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build the application using the DT configuration settings specified in an \
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alternate .overlay file using this parameter. These settings will override the \
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settings in the board's .dts file. Multiple files may be listed, e.g. \
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DTC_OVERLAY_FILE=\"dts1.overlay dts2.overlay\"")
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# The DTC_OVERLAY_FILE variable is now set to its final value.
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zephyr_boilerplate_watch(DTC_OVERLAY_FILE)
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zephyr_get(EXTRA_CONF_FILE SYSBUILD LOCAL VAR EXTRA_CONF_FILE OVERLAY_CONFIG MERGE REVERSE)
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zephyr_get(EXTRA_DTC_OVERLAY_FILE SYSBUILD LOCAL MERGE REVERSE)
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zephyr_get(DTS_EXTRA_CPPFLAGS SYSBUILD LOCAL MERGE REVERSE)
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