541 lines
No EOL
23 KiB
CMake
541 lines
No EOL
23 KiB
CMake
#
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# Internal function for retrieving component properties from a component target.
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#
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function(__component_get_property var component_target property)
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get_property(val TARGET ${component_target} PROPERTY ${property})
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set(${var} "${val}" PARENT_SCOPE)
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endfunction()
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#
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# Internal function for setting component properties on a component target. As with build properties,
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# set properties are also keeped track of.
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#
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function(__component_set_property component_target property val)
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cmake_parse_arguments(_ "APPEND" "" "" ${ARGN})
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if(__APPEND)
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set_property(TARGET ${component_target} APPEND PROPERTY ${property} "${val}")
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else()
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set_property(TARGET ${component_target} PROPERTY ${property} "${val}")
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endif()
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# Keep track of set component properties
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__component_get_property(properties ${component_target} __COMPONENT_PROPERTIES)
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if(NOT property IN_LIST properties)
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__component_set_property(${component_target} __COMPONENT_PROPERTIES ${property} APPEND)
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endif()
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endfunction()
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#
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# Given a component name or alias, get the corresponding component target.
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#
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function(__component_get_target var name_or_alias)
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# Look at previously resolved names or aliases
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idf_build_get_property(component_names_resolved __COMPONENT_NAMES_RESOLVED)
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list(FIND component_names_resolved ${name_or_alias} result)
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if(NOT result EQUAL -1)
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# If it has been resolved before, return that value. The index is the same
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# as in __COMPONENT_NAMES_RESOLVED as these are parallel lists.
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idf_build_get_property(component_targets_resolved __COMPONENT_TARGETS_RESOLVED)
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list(GET component_targets_resolved ${result} target)
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set(${var} ${target} PARENT_SCOPE)
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return()
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endif()
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idf_build_get_property(component_targets __COMPONENT_TARGETS)
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# Assume first that the paramters is an alias.
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string(REPLACE "::" "_" name_or_alias "${name_or_alias}")
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set(component_target ___${name_or_alias})
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if(component_target IN_LIST component_targets)
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set(${var} ${component_target} PARENT_SCOPE)
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set(target ${component_target})
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else() # assumption is wrong, try to look for it manually
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unset(target)
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foreach(component_target ${component_targets})
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__component_get_property(_component_name ${component_target} COMPONENT_NAME)
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if(name_or_alias STREQUAL _component_name)
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# There should only be one component of the same name
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if(NOT target)
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set(target ${component_target})
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else()
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message(FATAL_ERROR "Multiple components with name '${name_or_alias}' found.")
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return()
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endif()
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endif()
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endforeach()
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set(${var} ${target} PARENT_SCOPE)
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endif()
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# Save the resolved name or alias
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if(target)
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idf_build_set_property(__COMPONENT_NAMES_RESOLVED ${name_or_alias} APPEND)
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idf_build_set_property(__COMPONENT_TARGETS_RESOLVED ${target} APPEND)
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endif()
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endfunction()
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#
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# Called during component registration, sets basic properties of the current component.
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#
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macro(__component_set_properties)
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__component_get_property(type ${component_target} COMPONENT_TYPE)
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# Fill in the rest of component property
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__component_set_property(${component_target} SRCS "${sources}")
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__component_set_property(${component_target} INCLUDE_DIRS "${__INCLUDE_DIRS}")
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if(type STREQUAL LIBRARY)
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__component_set_property(${component_target} PRIV_INCLUDE_DIRS "${__PRIV_INCLUDE_DIRS}")
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endif()
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__component_set_property(${component_target} LDFRAGMENTS "${__LDFRAGMENTS}")
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__component_set_property(${component_target} EMBED_FILES "${__EMBED_FILES}")
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__component_set_property(${component_target} EMBED_TXTFILES "${__EMBED_TXTFILES}")
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__component_set_property(${component_target} REQUIRED_IDF_TARGETS "${__REQUIRED_IDF_TARGETS}")
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endmacro()
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#
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# Perform a quick check if given component dir satisfies basic requirements.
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#
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function(__component_dir_quick_check var component_dir)
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set(res 1)
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get_filename_component(abs_dir ${component_dir} ABSOLUTE)
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# Check this is really a directory and that a CMakeLists.txt file for this component exists
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# - warn and skip anything which isn't valid looking (probably cruft)
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if(NOT IS_DIRECTORY "${abs_dir}")
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message(STATUS "Unexpected file in components directory: ${abs_dir}")
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set(res 0)
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endif()
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get_filename_component(base_dir ${abs_dir} NAME)
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string(SUBSTRING "${base_dir}" 0 1 first_char)
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if(NOT first_char STREQUAL ".")
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if(NOT EXISTS "${abs_dir}/CMakeLists.txt")
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message(STATUS "Component directory ${abs_dir} does not contain a CMakeLists.txt file. "
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"No component will be added")
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set(res 0)
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endif()
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else()
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set(res 0) # quietly ignore dot-folders
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endif()
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set(${var} ${res} PARENT_SCOPE)
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endfunction()
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#
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# Write a CMake file containing all component and their properties. This is possible because each component
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# keeps a list of all its properties.
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#
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function(__component_write_properties output_file)
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idf_build_get_property(component_targets __COMPONENT_TARGETS)
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foreach(component_target ${component_targets})
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__component_get_property(component_properties ${component_target} __COMPONENT_PROPERTIES)
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foreach(property ${component_properties})
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__component_get_property(val ${component_target} ${property})
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set(component_properties_text
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"${component_properties_text}\nset(__component_${component_target}_${property} ${val})")
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endforeach()
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file(WRITE ${output_file} "${component_properties_text}")
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endforeach()
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endfunction()
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#
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# Add a component to process in the build. The components are keeped tracked of in property
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# __COMPONENT_TARGETS in component target form.
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#
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function(__component_add component_dir prefix)
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# For each component, two entities are created: a component target and a component library. The
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# component library is created during component registration (the actual static/interface library).
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# On the other hand, component targets are created early in the build
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# (during adding component as this function suggests).
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# This is so that we still have a target to attach properties to up until the component registration.
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# Plus, interface libraries have limitations on the types of properties that can be set on them,
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# so later in the build, these component targets actually contain the properties meant for the
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# corresponding component library.
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idf_build_get_property(component_targets __COMPONENT_TARGETS)
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get_filename_component(abs_dir ${component_dir} ABSOLUTE)
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get_filename_component(base_dir ${abs_dir} NAME)
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if(NOT EXISTS "${abs_dir}/CMakeLists.txt")
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message(FATAL_ERROR "Directory '${component_dir}' does not contain a component.")
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endif()
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set(component_name ${base_dir})
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# The component target has three underscores as a prefix. The corresponding component library
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# only has two.
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set(component_target ___${prefix}_${component_name})
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# If a component of the same name has not been added before If it has been added
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# before just override the properties. As a side effect, components added later
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# 'override' components added earlier.
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if(NOT component_target IN_LIST component_targets)
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if(NOT TARGET ${component_target})
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add_custom_target(${component_target} EXCLUDE_FROM_ALL)
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endif()
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idf_build_set_property(__COMPONENT_TARGETS ${component_target} APPEND)
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endif()
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set(component_lib __${prefix}_${component_name})
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set(component_dir ${abs_dir})
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set(component_alias ${prefix}::${component_name}) # The 'alias' of the component library,
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# used to refer to the component outside
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# the build system. Users can use this name
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# to resolve ambiguity with component names
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# and to link IDF components to external targets.
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# Set the basic properties of the component
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__component_set_property(${component_target} COMPONENT_LIB ${component_lib})
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__component_set_property(${component_target} COMPONENT_NAME ${component_name})
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__component_set_property(${component_target} COMPONENT_DIR ${component_dir})
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__component_set_property(${component_target} COMPONENT_ALIAS ${component_alias})
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__component_set_property(${component_target} __PREFIX ${prefix})
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# Set Kconfig related properties on the component
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__kconfig_component_init(${component_target})
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endfunction()
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#
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# Given a component directory, get the requirements by expanding it early. The expansion is performed
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# using a separate CMake script (the expansion is performed in a separate instance of CMake in scripting mode).
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#
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function(__component_get_requirements)
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idf_build_get_property(idf_path IDF_PATH)
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idf_build_get_property(build_dir BUILD_DIR)
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set(build_properties_file ${build_dir}/build_properties.temp.cmake)
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set(component_properties_file ${build_dir}/component_properties.temp.cmake)
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set(component_requires_file ${build_dir}/component_requires.temp.cmake)
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__build_write_properties(${build_properties_file})
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__component_write_properties(${component_properties_file})
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execute_process(COMMAND "${CMAKE_COMMAND}"
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-D "BUILD_PROPERTIES_FILE=${build_properties_file}"
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-D "COMPONENT_PROPERTIES_FILE=${component_properties_file}"
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-D "COMPONENT_REQUIRES_FILE=${component_requires_file}"
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-P "${idf_path}/tools/cmake/scripts/component_get_requirements.cmake"
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RESULT_VARIABLE result
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ERROR_VARIABLE error
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)
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if(NOT result EQUAL 0)
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message(FATAL_ERROR "${error}")
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endif()
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include(${component_requires_file})
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file(REMOVE ${build_properties_file})
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file(REMOVE ${component_properties_file})
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file(REMOVE ${component_requires_file})
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endfunction()
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# __component_add_sources, __component_check_target
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#
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# Utility macros for component registration. Adds source files and checks target requirements
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# respectively.
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macro(__component_add_sources sources)
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set(sources "")
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if(__SRCS)
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if(__SRC_DIRS)
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message(WARNING "SRCS and SRC_DIRS are both specified; ignoring SRC_DIRS.")
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endif()
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foreach(src ${__SRCS})
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get_filename_component(src "${src}" ABSOLUTE BASE_DIR ${COMPONENT_DIR})
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list(APPEND sources ${src})
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endforeach()
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else()
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if(__SRC_DIRS)
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foreach(dir ${__SRC_DIRS})
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get_filename_component(abs_dir ${dir} ABSOLUTE BASE_DIR ${COMPONENT_DIR})
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if(NOT IS_DIRECTORY ${abs_dir})
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message(FATAL_ERROR "SRC_DIRS entry '${dir}' does not exist.")
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endif()
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file(GLOB dir_sources "${abs_dir}/*.c" "${abs_dir}/*.cpp" "${abs_dir}/*.S")
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if(dir_sources)
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foreach(src ${dir_sources})
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get_filename_component(src "${src}" ABSOLUTE BASE_DIR ${COMPONENT_DIR})
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list(APPEND sources "${src}")
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endforeach()
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else()
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message(WARNING "No source files found for SRC_DIRS entry '${dir}'.")
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endif()
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endforeach()
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endif()
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if(__EXCLUDE_SRCS)
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foreach(src ${__EXCLUDE_SRCS})
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get_filename_component(src "${src}" ABSOLUTE)
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list(REMOVE_ITEM source "${src}")
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endforeach()
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endif()
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endif()
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list(REMOVE_DUPLICATES sources)
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endmacro()
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macro(__component_check_target)
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if(__REQUIRED_IDF_TARGETS)
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idf_build_get_property(idf_target IDF_TARGET)
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if(NOT idf_target IN_LIST __REQUIRED_IDF_TARGETS)
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message(FATAL_ERROR "Component ${COMPONENT_NAME} only supports targets: ${__REQUIRED_IDF_TARGETS}")
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endif()
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endif()
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endmacro()
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# __component_set_dependencies, __component_set_all_dependencies
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#
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# Links public and private requirements for the currently processed component
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macro(__component_set_dependencies reqs type)
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foreach(req ${reqs})
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if(req IN_LIST build_component_targets)
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__component_get_property(req_lib ${req} COMPONENT_LIB)
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if("${type}" STREQUAL "PRIVATE")
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set_property(TARGET ${component_lib} APPEND PROPERTY LINK_LIBRARIES ${req_lib})
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set_property(TARGET ${component_lib} APPEND PROPERTY INTERFACE_LINK_LIBRARIES $<LINK_ONLY:${req_lib}>)
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elseif("${type}" STREQUAL "PUBLIC")
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set_property(TARGET ${component_lib} APPEND PROPERTY LINK_LIBRARIES ${req_lib})
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set_property(TARGET ${component_lib} APPEND PROPERTY INTERFACE_LINK_LIBRARIES ${req_lib})
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else() # INTERFACE
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set_property(TARGET ${component_lib} APPEND PROPERTY INTERFACE_LINK_LIBRARIES ${req_lib})
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endif()
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endif()
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endforeach()
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endmacro()
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macro(__component_set_all_dependencies)
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__component_get_property(type ${component_target} COMPONENT_TYPE)
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idf_build_get_property(build_component_targets __BUILD_COMPONENT_TARGETS)
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if(NOT type STREQUAL CONFIG_ONLY)
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__component_get_property(reqs ${component_target} __REQUIRES)
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__component_set_dependencies("${reqs}" PUBLIC)
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__component_get_property(priv_reqs ${component_target} __PRIV_REQUIRES)
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__component_set_dependencies("${priv_reqs}" PRIVATE)
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else()
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__component_get_property(reqs ${component_target} __REQUIRES)
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__component_set_dependencies("${reqs}" INTERFACE)
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endif()
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endmacro()
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# idf_component_get_property
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#
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# @brief Retrieve the value of the specified component property
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#
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# @param[out] var the variable to store the value of the property in
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# @param[in] component the component name or alias to get the value of the property of
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# @param[in] property the property to get the value of
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#
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# @param[in, optional] GENERATOR_EXPRESSION (option) retrieve the generator expression for the property
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# instead of actual value
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function(idf_component_get_property var component property)
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cmake_parse_arguments(_ "GENERATOR_EXPRESSION" "" "" ${ARGN})
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__component_get_target(component_target ${component})
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if(__GENERATOR_EXPRESSION)
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set(val "$<TARGET_PROPERTY:${component_target},${property}>")
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else()
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__component_get_property(val ${component_target} ${property})
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endif()
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set(${var} "${val}" PARENT_SCOPE)
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endfunction()
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# idf_component_set_property
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#
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# @brief Set the value of the specified component property related. The property is
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# also added to the internal list of component properties if it isn't there already.
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#
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# @param[in] component component name or alias of the component to set the property of
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# @param[in] property the property to set the value of
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# @param[out] value value of the property to set to
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#
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# @param[in, optional] APPEND (option) append the value to the current value of the
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# property instead of replacing it
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function(idf_component_set_property component property val)
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cmake_parse_arguments(_ "APPEND" "" "" ${ARGN})
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__component_get_target(component_target ${component})
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if(__APPEND)
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__component_set_property(${component_target} ${property} "${val}" APPEND)
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else()
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__component_set_property(${component_target} ${property} "${val}")
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endif()
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endfunction()
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|
|
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# idf_component_register
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#
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# @brief Register a component to the build, creating component library targets etc.
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#
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# @param[in, optional] SRCS (multivalue) list of source files for the component
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# @param[in, optional] SRC_DIRS (multivalue) list of source directories to look for source files
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# in (.c, .cpp. .S); ignored when SRCS is specified.
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# @param[in, optional] EXCLUDE_SRCS (multivalue) used to exclude source files for the specified
|
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# SRC_DIRS
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# @param[in, optional] INCLUDE_DIRS (multivalue) public include directories for the created component library
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# @param[in, optional] PRIV_INCLUDE_DIRS (multivalue) private include directories for the created component library
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# @param[in, optional] LDFRAGMENTS (multivalue) linker script fragments for the component
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# @param[in, optional] REQUIRES (multivalue) publicly required components in terms of usage requirements
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# @param[in, optional] PRIV_REQUIRES (multivalue) privately required components in terms of usage requirements
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# or components only needed for functions/values defined in its project_include.cmake
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# @param[in, optional] REQUIRED_IDF_TARGETS (multivalue) the list of IDF build targets that the component only supports
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# @param[in, optional] EMBED_FILES (multivalue) list of binary files to embed with the component
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# @param[in, optional] EMBED_TXTFILES (multivalue) list of text files to embed with the component
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function(idf_component_register)
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set(options)
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set(single_value)
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set(multi_value SRCS SRC_DIRS EXCLUDE_SRCS
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INCLUDE_DIRS PRIV_INCLUDE_DIRS LDFRAGMENTS REQUIRES
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PRIV_REQUIRES REQUIRED_IDF_TARGETS EMBED_FILES EMBED_TXTFILES)
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cmake_parse_arguments(_ "${options}" "${single_value}" "${multi_value}" ${ARGN})
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if(NOT __idf_component_context)
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message(FATAL_ERROR "Called idf_component_register from a non-component directory.")
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endif()
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__component_check_target()
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__component_add_sources(sources)
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# Create the final target for the component. This target is the target that is
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# visible outside the build system.
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__component_get_target(component_target ${COMPONENT_ALIAS})
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__component_get_property(component_lib ${component_target} COMPONENT_LIB)
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# Use generator expression so that users can append/override flags even after call to
|
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# idf_build_process
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idf_build_get_property(include_directories INCLUDE_DIRECTORIES GENERATOR_EXPRESSION)
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idf_build_get_property(compile_options COMPILE_OPTIONS GENERATOR_EXPRESSION)
|
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idf_build_get_property(c_compile_options C_COMPILE_OPTIONS GENERATOR_EXPRESSION)
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idf_build_get_property(cxx_compile_options CXX_COMPILE_OPTIONS GENERATOR_EXPRESSION)
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idf_build_get_property(common_reqs ___COMPONENT_REQUIRES_COMMON)
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include_directories("${include_directories}")
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add_compile_options("${compile_options}")
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add_c_compile_options("${c_compile_options}")
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|
add_cxx_compile_options("${cxx_compile_options}")
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# Unfortunately add_definitions() does not support generator expressions. A new command
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|
# add_compile_definition() does but is only available on CMake 3.12 or newer. This uses
|
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# add_compile_options(), which can add any option as the workaround.
|
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#
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# TODO: Use add_compile_definitions() once minimum supported version is 3.12 or newer.
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|
idf_build_get_property(compile_definitions COMPILE_DEFINITIONS GENERATOR_EXPRESSION)
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|
add_compile_options("${compile_definitions}")
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|
list(REMOVE_ITEM common_reqs ${component_lib})
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|
link_libraries(${common_reqs})
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|
idf_build_get_property(config_dir CONFIG_DIR)
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|
# The contents of 'sources' is from the __component_add_sources call
|
|
if(sources OR __EMBED_FILES OR __EMBED_TXTFILES)
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|
add_library(${component_lib} STATIC ${sources})
|
|
__component_set_property(${component_target} COMPONENT_TYPE LIBRARY)
|
|
target_include_directories(${component_lib} PUBLIC ${__INCLUDE_DIRS})
|
|
target_include_directories(${component_lib} PRIVATE ${__PRIV_INCLUDE_DIRS})
|
|
target_include_directories(${component_lib} PUBLIC ${config_dir})
|
|
set_target_properties(${component_lib} PROPERTIES OUTPUT_NAME ${COMPONENT_NAME})
|
|
__ldgen_add_component(${component_lib})
|
|
else()
|
|
add_library(${component_lib} INTERFACE)
|
|
__component_set_property(${component_target} COMPONENT_TYPE CONFIG_ONLY)
|
|
target_include_directories(${component_lib} INTERFACE ${__INCLUDE_DIRS})
|
|
target_include_directories(${component_lib} INTERFACE ${config_dir})
|
|
endif()
|
|
|
|
# Alias the static/interface library created for linking to external targets.
|
|
# The alias is the <prefix>::<component name> name.
|
|
__component_get_property(component_alias ${component_target} COMPONENT_ALIAS)
|
|
add_library(${component_alias} ALIAS ${component_lib})
|
|
|
|
# Perform other component processing, such as embedding binaries and processing linker
|
|
# script fragments
|
|
foreach(file ${__EMBED_FILES})
|
|
target_add_binary_data(${component_lib} "${file}" "BINARY")
|
|
endforeach()
|
|
|
|
foreach(file ${__EMBED_TXTFILES})
|
|
target_add_binary_data(${component_lib} "${file}" "TEXT")
|
|
endforeach()
|
|
|
|
if(__LDFRAGMENTS)
|
|
__ldgen_add_fragment_files("${__LDFRAGMENTS}")
|
|
endif()
|
|
|
|
# Set dependencies
|
|
__component_set_all_dependencies()
|
|
|
|
# Add the component to built components
|
|
idf_build_set_property(__BUILD_COMPONENTS ${component_lib} APPEND)
|
|
idf_build_set_property(BUILD_COMPONENTS ${component_alias} APPEND)
|
|
|
|
# Make the COMPONENT_LIB variable available in the component CMakeLists.txt
|
|
set(COMPONENT_LIB ${component_lib} PARENT_SCOPE)
|
|
# COMPONENT_TARGET is deprecated but is made available with same function
|
|
# as COMPONENT_LIB for compatibility.
|
|
set(COMPONENT_TARGET ${component_lib} PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
#
|
|
# Deprecated functions
|
|
#
|
|
|
|
# register_component
|
|
#
|
|
# Compatibility function for registering 3.xx style components.
|
|
macro(register_component)
|
|
spaces2list(COMPONENT_SRCS)
|
|
spaces2list(COMPONENT_SRCDIRS)
|
|
spaces2list(COMPONENT_ADD_INCLUDEDIRS)
|
|
spaces2list(COMPONENT_PRIV_INCLUDEDIRS)
|
|
spaces2list(COMPONENT_REQUIRES)
|
|
spaces2list(COMPONENT_PRIV_REQUIRES)
|
|
spaces2list(COMPONENT_ADD_LDFRAGMENTS)
|
|
spaces2list(COMPONENT_EMBED_FILES)
|
|
spaces2list(COMPONENT_EMBED_TXTFILES)
|
|
spaces2list(COMPONENT_SRCEXCLUDE)
|
|
idf_component_register(SRCS "${COMPONENT_SRCS}"
|
|
SRC_DIRS "${COMPONENT_SRCDIRS}"
|
|
INCLUDE_DIRS "${COMPONENT_ADD_INCLUDEDIRS}"
|
|
PRIV_INCLUDE_DIRS "${COMPONENT_PRIV_INCLUDEDIRS}"
|
|
REQUIRES "${COMPONENT_REQUIRES}"
|
|
PRIV_REQUIRES "${COMPONENT_PRIV_REQUIRES}"
|
|
LDFRAGMENTS "${COMPONENT_ADD_LDFRAGMENTS}"
|
|
EMBED_FILES "${COMPONENT_EMBED_FILES}"
|
|
EMBED_TXTFILES "${COMPONENT_EMBED_TXTFILES}"
|
|
EXCLUDE_SRCS "${COMPONENT_SRCEXCLUDE}")
|
|
endmacro()
|
|
|
|
# require_idf_targets
|
|
#
|
|
# Compatibility function for requiring IDF build targets for 3.xx style components.
|
|
function(require_idf_targets)
|
|
set(__REQUIRED_IDF_TARGETS "${ARGN}")
|
|
__component_check_target()
|
|
endfunction()
|
|
|
|
# register_config_only_component
|
|
#
|
|
# Compatibility function for registering 3.xx style config components.
|
|
macro(register_config_only_component)
|
|
register_component()
|
|
endmacro()
|
|
|
|
# component_compile_options
|
|
#
|
|
# Wrapper around target_compile_options that passes the component name
|
|
function(component_compile_options)
|
|
target_compile_options(${COMPONENT_LIB} PRIVATE ${ARGV})
|
|
endfunction()
|
|
|
|
# component_compile_definitions
|
|
#
|
|
# Wrapper around target_compile_definitions that passes the component name
|
|
function(component_compile_definitions)
|
|
target_compile_definitions(${COMPONENT_LIB} PRIVATE ${ARGV})
|
|
endfunction() |