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https://github.com/espressif/esp-idf.git
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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
79 lines
3.2 KiB
CMake
79 lines
3.2 KiB
CMake
# Utilities for supporting linker script generation in the build system
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# __ldgen_add_fragment_files
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#
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# Add one or more linker fragment files, and append it to the list of fragment
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# files found so far.
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function(__ldgen_add_fragment_files fragment_files)
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spaces2list(fragment_files)
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foreach(fragment_file ${fragment_files})
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get_filename_component(abs_path ${fragment_file} ABSOLUTE)
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list(APPEND _fragment_files ${abs_path})
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endforeach()
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idf_build_set_property(__LDGEN_FRAGMENT_FILES "${_fragment_files}" APPEND)
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endfunction()
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# __ldgen_add_component
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#
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# Generate sections info for specified target to be used in linker script generation
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function(__ldgen_add_component component_lib)
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idf_build_set_property(__LDGEN_LIBRARIES "$<TARGET_FILE:${component_lib}>" APPEND)
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idf_build_set_property(__LDGEN_DEPENDS ${component_lib} APPEND)
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endfunction()
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# __ldgen_process_template
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#
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# Passes a linker script template to the linker script generation tool for
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# processing
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function(__ldgen_process_template template output)
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idf_build_get_property(idf_target IDF_TARGET)
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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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idf_build_get_property(ldgen_libraries __LDGEN_LIBRARIES GENERATOR_EXPRESSION)
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file(GENERATE OUTPUT ${build_dir}/ldgen_libraries.in CONTENT $<JOIN:${ldgen_libraries},\n>)
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file(GENERATE OUTPUT ${build_dir}/ldgen_libraries INPUT ${build_dir}/ldgen_libraries.in)
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set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
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APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES
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"${build_dir}/ldgen_libraries.in"
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"${build_dir}/ldgen_libraries")
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idf_build_get_property(ldgen_fragment_files __LDGEN_FRAGMENT_FILES GENERATOR_EXPRESSION)
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idf_build_get_property(ldgen_depends __LDGEN_DEPENDS GENERATOR_EXPRESSION)
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# Create command to invoke the linker script generator tool.
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idf_build_get_property(sdkconfig SDKCONFIG)
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idf_build_get_property(root_kconfig __ROOT_KCONFIG)
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idf_build_get_property(kconfigs KCONFIGS)
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idf_build_get_property(kconfig_projbuilds KCONFIG_PROJBUILDS)
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idf_build_get_property(python PYTHON)
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string(REPLACE ";" " " kconfigs "${kconfigs}")
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string(REPLACE ";" " " kconfig_projbuilds "${kconfig_projbuilds}")
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add_custom_command(
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OUTPUT ${output}
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COMMAND ${python} ${idf_path}/tools/ldgen/ldgen.py
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--config ${sdkconfig}
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--fragments "$<JOIN:${ldgen_fragment_files},\t>"
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--input ${template}
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--output ${output}
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--kconfig ${root_kconfig}
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--env "COMPONENT_KCONFIGS=${kconfigs}"
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--env "COMPONENT_KCONFIGS_PROJBUILD=${kconfig_projbuilds}"
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--env "IDF_CMAKE=y"
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--env "IDF_PATH=${idf_path}"
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--env "IDF_TARGET=${idf_target}"
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--libraries-file ${build_dir}/ldgen_libraries
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--objdump ${CMAKE_OBJDUMP}
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DEPENDS ${template} ${ldgen_fragment_files} ${ldgen_depends} ${SDKCONFIG}
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)
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get_filename_component(_name ${output} NAME)
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add_custom_target(__ldgen_output_${_name} DEPENDS ${output})
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add_dependencies(__idf_build_target __ldgen_output_${_name})
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idf_build_set_property(__LINK_DEPENDS ${output} APPEND)
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endfunction() |