3882e48e8a
!4452 used setting LINK_LIBRARIES and INTERFACE_LINK_LIBRARIES to link components built under ESP-IDF build system. However, LINK_LIBRARIES does not produce behavior same as linking PRIVATE. This MR uses the new signature for target_link_libraries directly instead. This also moves setting dependencies during component registration rather than after all components have been processed. The consequence is that internally, components have to use the new signature form as well. This does not affect linking the components to external targets, such as with idf_as_lib example. This only affects linking additional libraries to ESP-IDF libraries outside component processing (after idf_build_process), which is not even possible for CMake<v3.13 as target_link_libraries is not valid for targets not created in current directory. See https://cmake.org/cmake/help/v3.13/policy/CMP0079.html#policy:CMP0079
463 lines
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19 KiB
CMake
463 lines
No EOL
19 KiB
CMake
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# idf_build_get_property
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#
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# @brief Retrieve the value of the specified property related to ESP-IDF build.
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#
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# @param[out] var the variable to store the value in
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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_build_get_property var property)
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cmake_parse_arguments(_ "GENERATOR_EXPRESSION" "" "" ${ARGN})
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if(__GENERATOR_EXPRESSION)
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set(val "$<TARGET_PROPERTY:__idf_build_target,${property}>")
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else()
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get_property(val TARGET __idf_build_target PROPERTY ${property})
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endif()
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set(${var} ${val} PARENT_SCOPE)
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endfunction()
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# idf_build_set_property
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#
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# @brief Set the value of the specified property related to ESP-IDF build. The property is
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# also added to the internal list of build properties if it isn't there already.
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#
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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
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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_build_set_property property value)
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cmake_parse_arguments(_ "APPEND" "" "" ${ARGN})
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if(__APPEND)
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set_property(TARGET __idf_build_target APPEND PROPERTY ${property} ${value})
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else()
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set_property(TARGET __idf_build_target PROPERTY ${property} ${value})
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endif()
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# Keep track of set build properties so that they can be exported to a file that
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# will be included in early expansion script.
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idf_build_get_property(build_properties __BUILD_PROPERTIES)
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if(NOT property IN_LIST build_properties)
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idf_build_set_property(__BUILD_PROPERTIES "${property}" APPEND)
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endif()
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endfunction()
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# idf_build_unset_property
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#
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# @brief Unset the value of the specified property related to ESP-IDF build. Equivalent
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# to setting the property to an empty string; though it also removes the property
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# from the internal list of build properties.
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#
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# @param[in] property the property to unset the value of
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function(idf_build_unset_property property)
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idf_build_set_property(${property} "") # set to an empty value
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idf_build_get_property(build_properties __BUILD_PROPERTIES) # remove from tracked properties
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list(REMOVE_ITEM build_properties ${property})
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idf_build_set_property(__BUILD_PROPERTIES "${build_properties}")
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endfunction()
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#
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# Retrieve the IDF_PATH repository's version, either using a version
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# file or Git revision. Sets the IDF_VER build property.
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#
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function(__build_get_idf_git_revision)
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idf_build_get_property(idf_path IDF_PATH)
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git_describe(idf_ver_git "${idf_path}")
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if(EXISTS "${idf_path}/version.txt")
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file(STRINGS "${idf_path}/version.txt" idf_ver_t)
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set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS "${idf_path}/version.txt")
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else()
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set(idf_ver_t ${idf_ver_git})
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endif()
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# cut IDF_VER to required 32 characters.
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string(SUBSTRING "${idf_ver_t}" 0 31 idf_ver)
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idf_build_set_property(COMPILE_DEFINITIONS "-DIDF_VER=\"${idf_ver}\"" APPEND)
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git_submodule_check("${idf_path}")
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idf_build_set_property(IDF_VER ${idf_ver})
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endfunction()
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#
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# Sets initial list of build specifications (compile options, definitions, etc.) common across
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# all library targets built under the ESP-IDF build system. These build specifications are added
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# privately using the directory-level CMake commands (add_compile_options, include_directories, etc.)
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# during component registration.
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#
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function(__build_set_default_build_specifications)
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unset(compile_definitions)
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unset(compile_options)
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unset(c_compile_options)
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unset(cxx_compile_options)
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list(APPEND compile_definitions "-D_GNU_SOURCE")
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list(APPEND compile_options "-ffunction-sections"
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"-fdata-sections"
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"-fstrict-volatile-bitfields"
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"-nostdlib"
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# warning-related flags
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"-Wall"
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"-Werror=all"
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"-Wno-error=unused-function"
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"-Wno-error=unused-but-set-variable"
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"-Wno-error=unused-variable"
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"-Wno-error=deprecated-declarations"
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"-Wextra"
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"-Wno-unused-parameter"
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"-Wno-sign-compare"
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# always generate debug symbols (even in release mode, these don't
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# go into the final binary so have no impact on size
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"-ggdb")
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list(APPEND c_compile_options "-std=gnu99"
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"-Wno-old-style-declaration")
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list(APPEND cxx_compile_options "-std=gnu++11"
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"-fno-rtti")
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idf_build_set_property(COMPILE_DEFINITIONS "${compile_definitions}" APPEND)
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idf_build_set_property(COMPILE_OPTIONS "${compile_options}" APPEND)
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idf_build_set_property(C_COMPILE_OPTIONS "${c_compile_options}" APPEND)
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idf_build_set_property(CXX_COMPILE_OPTIONS "${cxx_compile_options}" APPEND)
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endfunction()
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#
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# Initialize the build. This gets called upon inclusion of idf.cmake to set internal
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# properties used for the processing phase of the build.
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#
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function(__build_init idf_path)
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# Create the build target, to which the ESP-IDF build properties, dependencies are attached to
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add_custom_target(__idf_build_target)
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set_default(python "python")
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idf_build_set_property(PYTHON ${python})
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idf_build_set_property(IDF_PATH ${idf_path})
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idf_build_set_property(__PREFIX idf)
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idf_build_set_property(__CHECK_PYTHON 1)
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__build_set_default_build_specifications()
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# Add internal components to the build
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idf_build_get_property(idf_path IDF_PATH)
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idf_build_get_property(prefix __PREFIX)
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file(GLOB component_dirs ${idf_path}/components/*)
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foreach(component_dir ${component_dirs})
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get_filename_component(component_dir ${component_dir} ABSOLUTE)
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__component_dir_quick_check(is_component ${component_dir})
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if(is_component)
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__component_add(${component_dir} ${prefix})
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endif()
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endforeach()
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# Set components required by all other components in the build
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set(requires_common cxx newlib freertos heap log soc esp_rom esp_common xtensa)
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idf_build_set_property(__COMPONENT_REQUIRES_COMMON "${requires_common}")
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__build_get_idf_git_revision()
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__kconfig_init()
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endfunction()
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# idf_build_component
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#
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# @brief Specify component directory for the build system to process.
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# Relative paths are converted to absolute paths with respect to current directory.
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# Any component that needs to be processed has to be specified using this
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# command before calling idf_build_process.
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#
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# @param[in] component_dir directory of the component to process
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function(idf_build_component component_dir)
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idf_build_get_property(prefix __PREFIX)
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__component_add(${component_dir} ${prefix} 0)
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endfunction()
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#
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# Resolve the requirement component to the component target created for that component.
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#
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function(__build_resolve_and_add_req var component_target req type)
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__component_get_target(_component_target ${req})
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if(NOT _component_target)
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message(FATAL_ERROR "Failed to resolve component '${req}'.")
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endif()
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__component_set_property(${component_target} ${type} ${_component_target} APPEND)
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set(${var} ${_component_target} PARENT_SCOPE)
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endfunction()
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#
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# Build a list of components (in the form of component targets) to be added to the build
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# based on public and private requirements. This list is saved in an internal property,
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# __BUILD_COMPONENT_TARGETS.
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#
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function(__build_expand_requirements component_target)
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# Since there are circular dependencies, make sure that we do not infinitely
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# expand requirements for each component.
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idf_build_get_property(component_targets_seen __COMPONENT_TARGETS_SEEN)
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__component_get_property(component_registered ${component_target} __COMPONENT_REGISTERED)
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if(component_target IN_LIST component_targets_seen OR NOT component_registered)
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return()
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endif()
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idf_build_set_property(__COMPONENT_TARGETS_SEEN ${component_target} APPEND)
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get_property(reqs TARGET ${component_target} PROPERTY REQUIRES)
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get_property(priv_reqs TARGET ${component_target} PROPERTY PRIV_REQUIRES)
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foreach(req ${reqs})
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__build_resolve_and_add_req(_component_target ${component_target} ${req} __REQUIRES)
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__build_expand_requirements(${_component_target})
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endforeach()
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foreach(req ${priv_reqs})
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__build_resolve_and_add_req(_component_target ${component_target} ${req} __PRIV_REQUIRES)
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__build_expand_requirements(${_component_target})
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endforeach()
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idf_build_get_property(build_component_targets __BUILD_COMPONENT_TARGETS)
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if(NOT component_target IN_LIST build_component_targets)
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idf_build_set_property(__BUILD_COMPONENT_TARGETS ${component_target} APPEND)
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endif()
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endfunction()
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#
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# Write a CMake file containing set build properties, owing to the fact that an internal
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# list of properties is maintained in idf_build_set_property() call. This is used to convert
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# those set properties to variables in the scope the output file is included in.
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#
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function(__build_write_properties output_file)
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idf_build_get_property(build_properties __BUILD_PROPERTIES)
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foreach(property ${build_properties})
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idf_build_get_property(val ${property})
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set(build_properties_text "${build_properties_text}\nset(${property} ${val})")
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endforeach()
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file(WRITE ${output_file} "${build_properties_text}")
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endfunction()
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#
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# Check if the Python interpreter used for the build has all the required modules.
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#
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function(__build_check_python)
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idf_build_get_property(check __CHECK_PYTHON)
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if(check)
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idf_build_get_property(python PYTHON)
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idf_build_get_property(idf_path IDF_PATH)
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message(STATUS "Checking Python dependencies...")
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execute_process(COMMAND "${python}" "${idf_path}/tools/check_python_dependencies.py"
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RESULT_VARIABLE result)
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if(NOT result EQUAL 0)
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message(FATAL_ERROR "Some Python dependencies must be installed. Check above message for details.")
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endif()
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endif()
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endfunction()
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#
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# Prepare for component processing expanding each component's project include
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#
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macro(__build_process_project_includes)
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# Include the sdkconfig cmake file, since the following operations require
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# knowledge of config values.
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idf_build_get_property(sdkconfig_cmake SDKCONFIG_CMAKE)
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include(${sdkconfig_cmake})
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# Make each build property available as a read-only variable
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idf_build_get_property(build_properties __BUILD_PROPERTIES)
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foreach(build_property ${build_properties})
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idf_build_get_property(val ${build_property})
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set(${build_property} "${val}")
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endforeach()
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# Check that the CMake target value matches the Kconfig target value.
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__target_check()
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idf_build_get_property(build_component_targets __BUILD_COMPONENT_TARGETS)
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# Include each component's project_include.cmake
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foreach(component_target ${build_component_targets})
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__component_get_property(dir ${component_target} COMPONENT_DIR)
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__component_get_property(_name ${component_target} COMPONENT_NAME)
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set(COMPONENT_NAME ${_name})
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set(COMPONENT_DIR ${dir})
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set(COMPONENT_PATH ${dir}) # this is deprecated, users are encouraged to use COMPONENT_DIR;
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# retained for compatibility
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if(EXISTS ${COMPONENT_DIR}/project_include.cmake)
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include(${COMPONENT_DIR}/project_include.cmake)
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endif()
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endforeach()
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endmacro()
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#
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# Utility macro for setting default property value if argument is not specified
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# for idf_build_process().
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#
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macro(__build_set_default var default)
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set(_var __${var})
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if(${_var})
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idf_build_set_property(${var} "${${_var}}")
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else()
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idf_build_set_property(${var} "${default}")
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endif()
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unset(_var)
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endmacro()
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#
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# Import configs as build instance properties so that they are accessible
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# using idf_build_get_config(). Config has to have been generated before calling
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# this command.
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#
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function(__build_import_configs)
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# Include the sdkconfig cmake file, since the following operations require
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# knowledge of config values.
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idf_build_get_property(sdkconfig_cmake SDKCONFIG_CMAKE)
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include(${sdkconfig_cmake})
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idf_build_set_property(__CONFIG_VARIABLES "${CONFIGS_LIST}")
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foreach(config ${CONFIGS_LIST})
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set_property(TARGET __idf_build_target PROPERTY ${config} "${${config}}")
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endforeach()
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endfunction()
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# idf_build_process
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#
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# @brief Main processing step for ESP-IDF build: config generation, adding components to the build,
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# dependency resolution, etc.
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#
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# @param[in] target ESP-IDF target
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#
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# @param[in, optional] PROJECT_DIR (single value) directory of the main project the buildsystem
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# is processed for; defaults to CMAKE_SOURCE_DIR
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# @param[in, optional] PROJECT_VER (single value) version string of the main project; defaults
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# to 0.0.0
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# @param[in, optional] PROJECT_NAME (single value) main project name, defaults to CMAKE_PROJECT_NAME
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# @param[in, optional] SDKCONFIG (single value) sdkconfig output path, defaults to PROJECT_DIR/sdkconfig
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# if PROJECT_DIR is set and CMAKE_SOURCE_DIR/sdkconfig if not
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# @param[in, optional] SDKCONFIG_DEFAULTS (single value) config defaults file to use for the build; defaults
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# to none (Kconfig defaults or previously generated config are used)
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# @param[in, optional] BUILD_DIR (single value) directory for build artifacts; defautls to CMAKE_BINARY_DIR
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# @param[in, optional] COMPONENTS (multivalue) starting components for trimming build
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macro(idf_build_process target)
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set(options)
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set(single_value PROJECT_DIR PROJECT_VER PROJECT_NAME BUILD_DIR SDKCONFIG SDKCONFIG_DEFAULTS)
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set(multi_value COMPONENTS)
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cmake_parse_arguments(_ "${options}" "${single_value}" "${multi_value}" ${ARGN})
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idf_build_set_property(BOOTLOADER_BUILD "${BOOTLOADER_BUILD}")
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# Check build target is specified. Since this target corresponds to a component
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# name, the target component is automatically added to the list of common component
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# requirements.
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if(target STREQUAL "")
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message(FATAL_ERROR "Build target not specified.")
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endif()
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idf_build_set_property(IDF_TARGET ${target})
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__build_set_default(PROJECT_DIR ${CMAKE_SOURCE_DIR})
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__build_set_default(PROJECT_NAME ${CMAKE_PROJECT_NAME})
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__build_set_default(PROJECT_VER "0.0.0")
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__build_set_default(BUILD_DIR ${CMAKE_BINARY_DIR})
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idf_build_get_property(project_dir PROJECT_DIR)
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__build_set_default(SDKCONFIG "${project_dir}/sdkconfig")
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__build_set_default(SDKCONFIG_DEFAULTS "")
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# Check for required Python modules
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__build_check_python()
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idf_build_set_property(__COMPONENT_REQUIRES_COMMON ${target} APPEND)
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__component_get_requirements()
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# Perform early expansion of component CMakeLists.txt in CMake scripting mode.
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# It is here we retrieve the public and private requirements of each component.
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# It is also here we add the common component requirements to each component's
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# own requirements.
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# Finally, do component expansion. In this case it simply means getting a final list
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# of build component targets given the requirements set by each component.
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if(__COMPONENTS)
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unset(component_targets)
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foreach(component ${__COMPONENTS})
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__component_get_target(component_target ${component})
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if(NOT component_target)
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message(FATAL_ERROR "Failed to resolve component '${component}'.")
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endif()
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list(APPEND component_targets ${component_target})
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endforeach()
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endif()
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foreach(component_target ${component_targets})
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__build_expand_requirements(${component_target})
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endforeach()
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unset(__COMPONENT_TARGETS_SEEN)
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# Get a list of common component requirements in component targets form (previously
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# we just have a list of component names)
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idf_build_get_property(common_reqs __COMPONENT_REQUIRES_COMMON)
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foreach(common_req ${common_reqs})
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__component_get_target(component_target ${common_req})
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__component_get_property(lib ${component_target} COMPONENT_LIB)
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idf_build_set_property(___COMPONENT_REQUIRES_COMMON ${lib} APPEND)
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endforeach()
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# Generate config values in different formats
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idf_build_get_property(sdkconfig SDKCONFIG)
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idf_build_get_property(sdkconfig_defaults SDKCONFIG_DEFAULTS)
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__kconfig_generate_config("${sdkconfig}" "${sdkconfig_defaults}")
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__build_import_configs()
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# Temporary trick to support both gcc5 and gcc8 builds
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if(CMAKE_C_COMPILER_VERSION VERSION_EQUAL 5.2.0)
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set(GCC_NOT_5_2_0 0 CACHE STRING "GCC is 5.2.0 version")
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else()
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set(GCC_NOT_5_2_0 1 CACHE STRING "GCC is not 5.2.0 version")
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endif()
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idf_build_set_property(COMPILE_DEFINITIONS "-DGCC_NOT_5_2_0" APPEND)
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# All targets built under this scope is with the ESP-IDF build system
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set(ESP_PLATFORM 1)
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idf_build_set_property(COMPILE_DEFINITIONS "-DESP_PLATFORM" APPEND)
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# Perform component processing (inclusion of project_include.cmake, adding component
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# subdirectories, creating library targets, linking libraries, etc.)
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__build_process_project_includes()
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idf_build_get_property(idf_path IDF_PATH)
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add_subdirectory(${idf_path} ${build_dir}/esp-idf)
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unset(ESP_PLATFORM)
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endmacro()
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# idf_build_executable
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#
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# @brief Specify the executable the build system can attach dependencies to (for generating
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# files used for linking, targets which should execute before creating the specified executable,
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# generating additional binary files, generating files related to flashing, etc.)
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function(idf_build_executable elf)
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# Propagate link dependencies from component library targets to the executable
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idf_build_get_property(link_depends __LINK_DEPENDS)
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set_property(TARGET ${elf} APPEND PROPERTY LINK_DEPENDS "${link_depends}")
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|
|
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# Set the EXECUTABLE_NAME and EXECUTABLE properties since there are generator expression
|
|
# from components that depend on it
|
|
get_filename_component(elf_name ${elf} NAME_WE)
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|
idf_build_set_property(EXECUTABLE_NAME ${elf_name})
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|
idf_build_set_property(EXECUTABLE ${elf})
|
|
|
|
# Add dependency of the build target to the executable
|
|
add_dependencies(${elf} __idf_build_target)
|
|
endfunction()
|
|
|
|
# idf_build_get_config
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|
#
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|
# @brief Get value of specified config variable
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|
function(idf_build_get_config var config)
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|
cmake_parse_arguments(_ "GENERATOR_EXPRESSION" "" "" ${ARGN})
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|
if(__GENERATOR_EXPRESSION)
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|
set(val "$<TARGET_PROPERTY:__idf_build_target,${config}>")
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|
else()
|
|
get_property(val TARGET __idf_build_target PROPERTY ${config})
|
|
endif()
|
|
set(${var} ${val} PARENT_SCOPE)
|
|
endfunction() |