esp-idf/CMakeLists.txt

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CMake
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cmake_minimum_required(VERSION 3.5)
project(esp-idf C CXX ASM)
if(NOT IDF_PATH)
set(IDF_PATH ${CMAKE_CURRENT_LIST_DIR})
endif()
include(tools/cmake/idf_functions.cmake)
#
# Set variables that control the build configuration and the build itself
#
idf_set_variables()
kconfig_set_variables()
#
# Generate a component dependencies file, enumerating components to be included in the build
# as well as their dependencies.
#
execute_process(COMMAND "${CMAKE_COMMAND}"
-D "COMPONENTS=${IDF_COMPONENTS}"
-D "COMPONENT_REQUIRES_COMMON=${IDF_COMPONENT_REQUIRES_COMMON}"
-D "EXCLUDE_COMPONENTS=${IDF_EXCLUDE_COMPONENTS}"
-D "TEST_COMPONENTS=${IDF_TEST_COMPONENTS}"
-D "TEST_EXCLUDE_COMPONENTS=${IDF_TEST_EXCLUDE_COMPONENTS}"
-D "BUILD_TESTS=${IDF_BUILD_TESTS}"
-D "DEPENDENCIES_FILE=${CMAKE_BINARY_DIR}/component_depends.cmake"
-D "COMPONENT_DIRS=${IDF_COMPONENT_DIRS}"
-D "BOOTLOADER_BUILD=${BOOTLOADER_BUILD}"
-D "IDF_TARGET=${IDF_TARGET}"
-D "IDF_PATH=${IDF_PATH}"
-D "DEBUG=${DEBUG}"
-P "${IDF_PATH}/tools/cmake/scripts/expand_requirements.cmake"
WORKING_DIRECTORY "${PROJECT_PATH}")
include("${CMAKE_BINARY_DIR}/component_depends.cmake")
#
# We now have the following component-related variables:
#
# IDF_COMPONENTS is the list of initial components set by the user
# (or empty to include all components in the build).
# BUILD_COMPONENTS is the list of components to include in the build.
# BUILD_COMPONENT_PATHS is the paths to all of these components, obtained from the component dependencies file.
#
# Print the list of found components and test components
#
string(REPLACE ";" " " BUILD_COMPONENTS_SPACES "${BUILD_COMPONENTS}")
message(STATUS "Component names: ${BUILD_COMPONENTS_SPACES}")
unset(BUILD_COMPONENTS_SPACES)
message(STATUS "Component paths: ${BUILD_COMPONENT_PATHS}")
# Print list of test components
if(TESTS_ALL EQUAL 1 OR TEST_COMPONENTS)
string(REPLACE ";" " " BUILD_TEST_COMPONENTS_SPACES "${BUILD_TEST_COMPONENTS}")
message(STATUS "Test component names: ${BUILD_TEST_COMPONENTS_SPACES}")
unset(BUILD_TEST_COMPONENTS_SPACES)
message(STATUS "Test component paths: ${BUILD_TEST_COMPONENT_PATHS}")
endif()
# Generate project configuration
kconfig_process_config()
# Include sdkconfig.cmake so rest of the build knows the configuration
include(${SDKCONFIG_CMAKE})
# Verify the environment is configured correctly
idf_verify_environment()
# Check git revision (may trigger reruns of cmake)
## sets IDF_VER to IDF git revision
idf_get_git_revision()
# Check that the targets set in cache, sdkconfig, and in environment all match
idf_check_config_target()
## if project uses git, retrieve revision
git_describe(PROJECT_VER "${CMAKE_CURRENT_SOURCE_DIR}")
# Add some idf-wide definitions
idf_set_global_compile_options()
# generate compile_commands.json (needs to come after project)
set(CMAKE_EXPORT_COMPILE_COMMANDS 1)
#
# Setup variables for linker script generation
#
ldgen_set_variables()
# Include any top-level project_include.cmake files from components
foreach(component ${BUILD_COMPONENT_PATHS})
set(COMPONENT_PATH "${component}")
include_if_exists("${component}/project_include.cmake")
unset(COMPONENT_PATH)
endforeach()
#
# Add each component to the build as a library
#
foreach(COMPONENT_PATH ${BUILD_COMPONENT_PATHS})
get_filename_component(COMPONENT_NAME ${COMPONENT_PATH} NAME)
list(FIND BUILD_TEST_COMPONENT_PATHS ${COMPONENT_PATH} idx)
if(NOT idx EQUAL -1)
list(GET BUILD_TEST_COMPONENTS ${idx} test_component)
set(COMPONENT_NAME ${test_component})
endif()
component_get_target(COMPONENT_TARGET ${COMPONENT_NAME})
add_subdirectory(${COMPONENT_PATH} ${COMPONENT_NAME})
endforeach()
unset(COMPONENT_NAME)
unset(COMPONENT_PATH)
# each component should see the include directories of its requirements
#
# (we can't do this until all components are registered and targets exist in cmake, as we have
# a circular requirements graph...)
foreach(component ${BUILD_COMPONENTS})
component_get_target(component_target ${component})
if(TARGET ${component_target})
get_component_requirements(${component} deps priv_deps)
list(APPEND priv_deps ${IDF_COMPONENT_REQUIRES_COMMON})
foreach(dep ${deps})
component_get_target(dep_target ${dep})
add_component_dependencies(${component_target} ${dep_target} PUBLIC)
endforeach()
foreach(dep ${priv_deps})
component_get_target(dep_target ${dep})
add_component_dependencies(${component_target} ${dep_target} PRIVATE)
endforeach()
endif()
endforeach()
if(IDF_BUILD_ARTIFACTS)
# Write project description JSON file
make_json_list("${BUILD_COMPONENTS}" build_components_json)
make_json_list("${BUILD_COMPONENT_PATHS}" build_component_paths_json)
configure_file("${IDF_PATH}/tools/cmake/project_description.json.in"
"${IDF_BUILD_ARTIFACTS_DIR}/project_description.json")
unset(build_components_json)
unset(build_component_paths_json)
endif()
set(BUILD_COMPONENTS ${BUILD_COMPONENTS} PARENT_SCOPE)
ldgen_add_dependencies()