120 lines
3.7 KiB
CMake
120 lines
3.7 KiB
CMake
# Designed to be included from an IDF app's CMakeLists.txt file
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#
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cmake_minimum_required(VERSION 3.5)
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# Set IDF_PATH, as nothing else will work without this
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set(IDF_PATH "$ENV{IDF_PATH}")
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if(NOT IDF_PATH)
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# Documentation says you should set IDF_PATH in your environment, but we
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# can infer it here if it's not set.
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set(IDF_PATH ${CMAKE_CURRENT_LIST_DIR})
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set($ENV{IDF_PATH} "${IDF_PATH}")
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endif()
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#
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# Load cmake modules
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#
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set(CMAKE_MODULE_PATH
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"${IDF_PATH}/tools/cmake"
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"${IDF_PATH}/tools/cmake/third_party"
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${CMAKE_MODULE_PATH})
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include(GetGitRevisionDescription)
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include(utilities)
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include(components)
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include(kconfig)
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include(git_submodules)
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include(idf_functions)
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set_default(PYTHON "python")
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# project
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#
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# This macro wraps the cmake 'project' command to add
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# all of the IDF-specific functionality required
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#
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# Implementation Note: This macro wraps 'project' on purpose, because cmake has
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# some backwards-compatible magic where if you don't call "project" in the
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# top-level CMakeLists file, it will call it implicitly. However, the implicit
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# project will not have CMAKE_TOOLCHAIN_FILE set and therefore tries to
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# create a native build project.
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#
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# Therefore, to keep all the IDF "build magic", the cleanest way is to keep the
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# top-level "project" call but customize it to do what we want in the IDF build.
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#
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macro(project name)
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# Set global variables used by rest of the build
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idf_set_global_variables()
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# Search COMPONENT_DIRS for COMPONENTS, make a list of full paths to each
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# component in COMPONENT_PATHS
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components_find_all("${COMPONENT_DIRS}" "${COMPONENTS}"
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COMPONENT_PATHS COMPONENTS)
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# Print list of components
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string(REPLACE ";" " " COMPONENTS_SPACES "${COMPONENTS}")
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message(STATUS "Component names: ${COMPONENTS_SPACES}")
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unset(COMPONENTS_SPACES)
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message(STATUS "Component paths: ${COMPONENT_PATHS}")
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kconfig_set_variables()
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kconfig_process_config()
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# Include sdkconfig.cmake so rest of the build knows the configuration
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include(${SDKCONFIG_CMAKE})
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# Now the configuration is loaded, set the toolchain appropriately
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#
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# TODO: support more toolchains than just ESP32
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set(CMAKE_TOOLCHAIN_FILE $ENV{IDF_PATH}/tools/cmake/toolchain-esp32.cmake)
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# Declare the actual cmake-level project
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_project(${name} ASM C CXX)
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# generate compile_commands.json (needs to come after project)
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set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
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# Verify the environment is configured correctly
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idf_verify_environment()
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# Add some idf-wide definitions
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idf_set_global_compiler_options()
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# Check git revision (may trigger reruns of cmake)
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## sets IDF_VER to IDF git revision
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idf_get_git_revision()
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## if project uses git, retrieve revision
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git_describe(PROJECT_VER "${CMAKE_CURRENT_SOURCE_DIR}")
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# Include any top-level project_include.cmake files from components
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foreach(component ${COMPONENT_PATHS})
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include_if_exists("${component}/project_include.cmake")
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endforeach()
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#
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# Add each component to the build as a library
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#
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foreach(COMPONENT_PATH ${COMPONENT_PATHS})
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get_filename_component(COMPONENT_NAME ${COMPONENT_PATH} NAME)
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add_subdirectory(${COMPONENT_PATH} ${COMPONENT_NAME})
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endforeach()
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unset(COMPONENT_NAME)
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unset(COMPONENT_PATH)
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#
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# Add the app executable to the build (has name of PROJECT.elf)
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#
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idf_add_executable()
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# Write project description JSON file
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configure_file("${IDF_PATH}/tools/cmake/project_description.json.in"
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"${CMAKE_BINARY_DIR}/project_description.json")
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#
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# Finish component registration (add cross-dependencies, make
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# executable dependent on all components)
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#
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components_finish_registration()
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endmacro()
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