131 lines
4.5 KiB
CMake
131 lines
4.5 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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# This CMake module will load all Zephyr CMake modules in correct order for
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# default Zephyr build system.
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#
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# Outcome:
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# See individual CMake module descriptions
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include_guard(GLOBAL)
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# The code line below defines the real minimum supported CMake version.
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#
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# Unfortunately CMake requires the toplevel CMakeLists.txt file to define the
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# required version, not even invoking it from a CMake module is sufficient.
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# It is however permitted to have multiple invocations of cmake_minimum_required.
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cmake_minimum_required(VERSION 3.20.0)
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message(STATUS "Application: ${APPLICATION_SOURCE_DIR}")
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find_package(ZephyrBuildConfiguration
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QUIET NO_POLICY_SCOPE
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NAMES ZephyrBuild
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PATHS ${ZEPHYR_BASE}/../*
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NO_CMAKE_PATH
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NO_CMAKE_ENVIRONMENT_PATH
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NO_SYSTEM_ENVIRONMENT_PATH
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NO_CMAKE_PACKAGE_REGISTRY
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NO_CMAKE_SYSTEM_PATH
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NO_CMAKE_SYSTEM_PACKAGE_REGISTRY
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)
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# Test and error-out if we are affected by the PyPI CMake 3.22.1 / 3.22.2 bug
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if(${CMAKE_VERSION} VERSION_EQUAL 3.22.1 OR ${CMAKE_VERSION} VERSION_EQUAL 3.22.2)
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# It seems only pip-installed builds are affected so we test to see if we are affected
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cmake_path(GET ZEPHYR_BASE PARENT_PATH test_cmake_path)
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if(ZEPHYR_BASE STREQUAL test_cmake_path)
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message(FATAL_ERROR "The CMake version ${CMAKE_VERSION} installed suffers"
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" the \n 'cmake_path(... PARENT_PATH)' bug, see: \n"
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"https://gitlab.kitware.com/cmake/cmake/-/issues/23187\n"
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"https://github.com/scikit-build/cmake-python-distributions/issues/221\n"
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"Please install another CMake version or use a build of CMake that"
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" does not come from PyPI."
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)
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endif()
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endif()
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# Prepare user cache
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list(APPEND zephyr_cmake_modules python)
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list(APPEND zephyr_cmake_modules user_cache)
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# Load Zephyr extensions
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list(APPEND zephyr_cmake_modules extensions)
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list(APPEND zephyr_cmake_modules version)
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#
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# Find tools
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#
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list(APPEND zephyr_cmake_modules west)
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list(APPEND zephyr_cmake_modules ccache)
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# Load default root settings
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list(APPEND zephyr_cmake_modules root)
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#
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# Find Zephyr modules.
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# Those may contain additional DTS, BOARD, SOC, ARCH ROOTs.
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# Also create the Kconfig binary dir for generated Kconf files.
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#
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list(APPEND zephyr_cmake_modules zephyr_module)
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list(APPEND zephyr_cmake_modules boards)
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list(APPEND zephyr_cmake_modules shields)
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list(APPEND zephyr_cmake_modules arch)
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list(APPEND zephyr_cmake_modules configuration_files)
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list(APPEND zephyr_cmake_modules verify-toolchain)
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list(APPEND zephyr_cmake_modules host-tools)
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# Include board specific device-tree flags before parsing.
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set(pre_dt_board "\${BOARD_DIR}/pre_dt_board.cmake" OPTIONAL)
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list(APPEND zephyr_cmake_modules "\${pre_dt_board}")
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# DTS should be close to kconfig because CONFIG_ variables from
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# kconfig and dts should be available at the same time.
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#
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# The DT system uses a C preprocessor for it's code generation needs.
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# This creates an awkward chicken-and-egg problem, because we don't
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# always know exactly which toolchain the user needs until we know
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# more about the target, e.g. after DT and Kconfig.
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#
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# To resolve this we find "some" C toolchain, configure it generically
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# with the minimal amount of configuration needed to have it
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# preprocess DT sources, and then, after we have finished processing
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# both DT and Kconfig we complete the target-specific configuration,
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# and possibly change the toolchain.
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list(APPEND zephyr_cmake_modules generic_toolchain)
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list(APPEND zephyr_cmake_modules dts)
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list(APPEND zephyr_cmake_modules kconfig)
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list(APPEND zephyr_cmake_modules soc)
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list(APPEND zephyr_cmake_modules target_toolchain)
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foreach(component ${SUB_COMPONENTS})
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if(NOT ${component} IN_LIST zephyr_cmake_modules)
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message(FATAL_ERROR
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"Subcomponent '${component}' not default module for Zephyr CMake build system.\n"
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"Please choose one or more valid components: ${zephyr_cmake_modules}"
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)
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endif()
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endforeach()
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foreach(module IN LISTS zephyr_cmake_modules)
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# Ensures any module of type `${module}` are properly expanded to list before
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# passed on the `include(${module})`.
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# This is done twice to support cases where the content of `${module}` itself
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# contains a variable, like `${BOARD_DIR}`.
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string(CONFIGURE "${module}" module)
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string(CONFIGURE "${module}" module)
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include(${module})
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list(REMOVE_ITEM SUB_COMPONENTS ${module})
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if(DEFINED SUB_COMPONENTS AND NOT SUB_COMPONENTS)
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# All requested Zephyr CMake modules have been loaded, so let's return.
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return()
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endif()
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endforeach()
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include(kernel)
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