mirror of
https://github.com/espressif/esp-idf.git
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feat(cmakev2/kconfig): Added __init_kconfig() and initial Kconfig properties
This commit adds the tools/cmakev2/kconfig.cmake file for Kconfig processing. The file provides the following functions: - __init_kconfig(): Placeholder to initialize Kconfig build properties, collect kconfig files and generate the initial sdkconfig. - __generate_sdkconfig(): Placeholder to generate sdkconfig output files.
This commit is contained in:
Sudeep Mohanty
committed by
Frantisek Hrbata
Frantisek Hrbata
parent
c657466c78
commit
9e90c05d4d
+27
-37
@@ -15,6 +15,7 @@ include(${CMAKE_CURRENT_LIST_DIR}/../cmake/version.cmake)
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include(component)
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include(build)
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include(kconfig)
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#[[
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__init_idf_path()
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@@ -92,41 +93,6 @@ function(__init_python)
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endif()
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endfunction()
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#[[
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__init_sdkconfig_files()
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Set the SDKCONFIG and SDKCONFIG_DEFAULTS build properties using environment
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variables, CMake cache variables, or default values.
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#]]
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function(__init_sdkconfig_files)
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if(EXISTS "${CMAKE_SOURCE_DIR}/sdkconfig.defaults")
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set(sdkconfig_defaults "${CMAKE_SOURCE_DIR}/sdkconfig.defaults")
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else()
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set(sdkconfig_defaults "")
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endif()
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__get_default_value(VARIABLE SDKCONFIG
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DEFAULT "${CMAKE_SOURCE_DIR}/sdkconfig"
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OUTPUT sdkconfig)
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__get_default_value(VARIABLE SDKCONFIG_DEFAULTS
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DEFAULT "${sdkconfig_defaults}"
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OUTPUT sdkconfig_defaults)
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__get_absolute_paths(PATHS "${sdkconfig}" OUTPUT sdkconfig)
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__get_absolute_paths(PATHS "${sdkconfig_defaults}" OUTPUT sdkconfig_defaults)
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set(sdkconfig_defaults_checked "")
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foreach(sdkconfig_default ${sdkconfig_defaults})
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if(NOT EXISTS "${sdkconfig_default}")
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idf_die("SDKCONFIG_DEFAULTS '${sdkconfig_default}' does not exist.")
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endif()
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list(APPEND sdkconfig_defaults_checked ${sdkconfig_default})
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endforeach()
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idf_build_set_property(SDKCONFIG "${sdkconfig}")
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idf_build_set_property(SDKCONFIG_DEFAULTS "${sdkconfig_defaults_checked}")
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endfunction()
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#[[
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__init_idf_target()
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@@ -356,6 +322,12 @@ add_library(idf_build_properties INTERFACE)
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# Set build system prefix for component targets.
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idf_build_set_property(PREFIX "idf")
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# Set project directory property.
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idf_build_set_property(PROJECT_DIR "${CMAKE_CURRENT_SOURCE_DIR}")
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# Set build directory property.
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idf_build_set_property(BUILD_DIR "${CMAKE_BINARY_DIR}")
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# Initialize IDF_PATH and set it as a global and environmental variable, as
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# well as a build property.
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__init_idf_path()
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@@ -363,8 +335,8 @@ __init_idf_path()
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# Determine the Python interpreter and check package dependencies if necessary.
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__init_python()
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# Set SDKCONFIG and SDKCONFIG_DEFAULTS build properties.
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__init_sdkconfig_files()
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# Initialize Kconfig system infrastructure.
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__init_kconfig()
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# Set IDF_TARGET.
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__init_idf_target()
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@@ -375,6 +347,24 @@ __init_toolchain()
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# Discover and initialize components.
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__init_components()
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# Generate initial sdkconfig with discovered components.
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__generate_sdkconfig()
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# TODO: Invoke component manager with initial sdkconfig.
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# We need to re-collect and re-generate sdkconfig with managed components.
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# This will be done iteratively until the component manager resolves all sdkconfig
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# related dependencies.
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# Create Kconfig targets
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__create_kconfig_targets()
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# Include sdkconfig.cmake
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idf_build_get_property(sdkconfig_cmake __SDKCONFIG_CMAKE)
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if(NOT EXISTS "${sdkconfig_cmake}")
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idf_die("sdkconfig.cmake file not found.")
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endif()
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include("${sdkconfig_cmake}")
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#[[ TODO
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Many of the following things are already implemented in PoC !38337, but they
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@@ -0,0 +1,93 @@
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# SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
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# SPDX-License-Identifier: Apache-2.0
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# Kconfig utilities for ESP-IDF CMake build system v2
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# This module provides functions for Kconfig processing and sdkconfig generation
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include_guard(GLOBAL)
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include(utilities)
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include(build)
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include(component)
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#[[
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__init_kconfig()
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Initialize the Kconfig system infrastructure for the build.
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This function performs the Kconfig initialization and setup by:
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1. Setting up SDKCONFIG and SDKCONFIG_DEFAULTS build properties
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2. Setting up ESP-IDF root Kconfig files and config directory
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3. Creating the default config directory
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This should be called after component discovery but before component manager.
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Note: Regular component Kconfig files are collected during component discovery.
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#]]
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function(__init_kconfig)
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idf_build_get_property(idf_path IDF_PATH)
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# Initialize SDKCONFIG and SDKCONFIG_DEFAULTS build properties using environment
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# variables, CMake cache variables, or default values.
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if(EXISTS "${CMAKE_SOURCE_DIR}/sdkconfig.defaults")
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set(sdkconfig_defaults "${CMAKE_SOURCE_DIR}/sdkconfig.defaults")
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else()
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set(sdkconfig_defaults "")
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endif()
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__get_default_value(VARIABLE SDKCONFIG
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DEFAULT "${CMAKE_SOURCE_DIR}/sdkconfig"
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OUTPUT sdkconfig)
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__get_default_value(VARIABLE SDKCONFIG_DEFAULTS
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DEFAULT "${sdkconfig_defaults}"
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OUTPUT sdkconfig_defaults)
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__get_absolute_paths(PATHS "${sdkconfig}" OUTPUT sdkconfig)
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__get_absolute_paths(PATHS "${sdkconfig_defaults}" OUTPUT sdkconfig_defaults)
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set(sdkconfig_defaults_checked "")
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foreach(sdkconfig_default ${sdkconfig_defaults})
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if(NOT EXISTS "${sdkconfig_default}")
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idf_die("SDKCONFIG_DEFAULTS '${sdkconfig_default}' does not exist.")
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endif()
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list(APPEND sdkconfig_defaults_checked ${sdkconfig_default})
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endforeach()
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idf_build_set_property(SDKCONFIG "${sdkconfig}")
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idf_build_set_property(SDKCONFIG_DEFAULTS "${sdkconfig_defaults_checked}")
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# Setup ESP-IDF root Kconfig and sdkconfig.rename files.
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idf_build_set_property(__ROOT_KCONFIG "${idf_path}/Kconfig")
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idf_build_set_property(__ROOT_SDKCONFIG_RENAME "${idf_path}/sdkconfig.rename")
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# Setup and create the default config directory.
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idf_build_get_property(build_dir BUILD_DIR)
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set(config_dir "${build_dir}/config")
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file(MAKE_DIRECTORY "${config_dir}")
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idf_build_set_property(CONFIG_DIR "${config_dir}")
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endfunction()
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#[[
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__generate_sdkconfig()
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This function performs the complete Kconfig generation process:
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1. Collect Kconfig files from discovered components
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2. Collect Kconfig files from bootloader components
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3. Set up the Kconfig environment with all collected files
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4. Generate all output files (sdkconfig.h, sdkconfig.cmake, etc.)
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#]]
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function(__generate_sdkconfig)
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idf_msg("Generating sdkconfig configuration...")
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# Collect Kconfig files from discovered components
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__consolidate_component_kconfig_files()
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# Collect Kconfig files from bootloader components
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__collect_kconfig_files_from_bootloader_components()
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# Prepare Kconfig environment using collected files
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__setup_kconfig_environment()
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# Generate Kconfig outputs
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__generate_kconfig_outputs()
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idf_msg("Generated sdkconfig configuration")
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endfunction()
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