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# SPDX-License-Identifier: Apache-2.0
#
# Copyright (c) 2021, Nordic Semiconductor ASA
# This CMake module will load all Zephyr CMake modules in correct order for
# default Zephyr build system.
#
# Outcome:
# See individual CMake module descriptions
include_guard(GLOBAL)
# The code line below defines the real minimum supported CMake version.
#
# Unfortunately CMake requires the toplevel CMakeLists.txt file to define the
# required version, not even invoking it from a CMake module is sufficient.
# It is however permitted to have multiple invocations of cmake_minimum_required.
cmake_minimum_required(VERSION 3.20.0)
message(STATUS "Application: ${APPLICATION_SOURCE_DIR}")
find_package(ZephyrBuildConfiguration
QUIET NO_POLICY_SCOPE
NAMES ZephyrBuild
PATHS ${ZEPHYR_BASE}/../*
NO_CMAKE_PATH
NO_CMAKE_ENVIRONMENT_PATH
NO_SYSTEM_ENVIRONMENT_PATH
NO_CMAKE_PACKAGE_REGISTRY
NO_CMAKE_SYSTEM_PATH
NO_CMAKE_SYSTEM_PACKAGE_REGISTRY
)
# Test and error-out if we are affected by the PyPI CMake 3.22.1 / 3.22.2 bug
if(${CMAKE_VERSION} VERSION_EQUAL 3.22.1 OR ${CMAKE_VERSION} VERSION_EQUAL 3.22.2)
# It seems only pip-installed builds are affected so we test to see if we are affected
cmake_path(GET ZEPHYR_BASE PARENT_PATH test_cmake_path)
if(ZEPHYR_BASE STREQUAL test_cmake_path)
message(FATAL_ERROR "The CMake version ${CMAKE_VERSION} installed suffers"
" the \n 'cmake_path(... PARENT_PATH)' bug, see: \n"
"https://gitlab.kitware.com/cmake/cmake/-/issues/23187\n"
"https://github.com/scikit-build/cmake-python-distributions/issues/221\n"
"Please install another CMake version or use a build of CMake that"
" does not come from PyPI."
)
endif()
endif()
# Prepare user cache
list(APPEND zephyr_cmake_modules python)
list(APPEND zephyr_cmake_modules user_cache)
# Load Zephyr extensions
list(APPEND zephyr_cmake_modules extensions)
list(APPEND zephyr_cmake_modules version)
#
# Find tools
#
list(APPEND zephyr_cmake_modules west)
list(APPEND zephyr_cmake_modules ccache)
# Load default root settings
list(APPEND zephyr_cmake_modules root)
#
# Find Zephyr modules.
# Those may contain additional DTS, BOARD, SOC, ARCH ROOTs.
# Also create the Kconfig binary dir for generated Kconf files.
#
list(APPEND zephyr_cmake_modules zephyr_module)
list(APPEND zephyr_cmake_modules boards)
list(APPEND zephyr_cmake_modules shields)
list(APPEND zephyr_cmake_modules arch)
list(APPEND zephyr_cmake_modules configuration_files)
list(APPEND zephyr_cmake_modules verify-toolchain)
list(APPEND zephyr_cmake_modules host-tools)
# Include board specific device-tree flags before parsing.
set(pre_dt_board "\${BOARD_DIR}/pre_dt_board.cmake" OPTIONAL)
list(APPEND zephyr_cmake_modules "\${pre_dt_board}")
# DTS should be close to kconfig because CONFIG_ variables from
# kconfig and dts should be available at the same time.
#
# The DT system uses a C preprocessor for it's code generation needs.
# This creates an awkward chicken-and-egg problem, because we don't
# always know exactly which toolchain the user needs until we know
# more about the target, e.g. after DT and Kconfig.
#
# To resolve this we find "some" C toolchain, configure it generically
# with the minimal amount of configuration needed to have it
# preprocess DT sources, and then, after we have finished processing
# both DT and Kconfig we complete the target-specific configuration,
# and possibly change the toolchain.
list(APPEND zephyr_cmake_modules generic_toolchain)
list(APPEND zephyr_cmake_modules dts)
list(APPEND zephyr_cmake_modules kconfig)
list(APPEND zephyr_cmake_modules soc)
list(APPEND zephyr_cmake_modules target_toolchain)
foreach(component ${SUB_COMPONENTS})
if(NOT ${component} IN_LIST zephyr_cmake_modules)
message(FATAL_ERROR
"Subcomponent '${component}' not default module for Zephyr CMake build system.\n"
"Please choose one or more valid components: ${zephyr_cmake_modules}"
)
endif()
endforeach()
foreach(module IN LISTS zephyr_cmake_modules)
# Ensures any module of type `${module}` are properly expanded to list before
# passed on the `include(${module})`.
# This is done twice to support cases where the content of `${module}` itself
# contains a variable, like `${BOARD_DIR}`.
string(CONFIGURE "${module}" module)
string(CONFIGURE "${module}" module)
include(${module})
list(REMOVE_ITEM SUB_COMPONENTS ${module})
if(DEFINED SUB_COMPONENTS AND NOT SUB_COMPONENTS)
# All requested Zephyr CMake modules have been loaded, so let's return.
return()
endif()
endforeach()
include(kernel)