96 lines
3.7 KiB
CMake
96 lines
3.7 KiB
CMake
# Utilities for supporting linker script generation in the build system
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# ldgen_create_target
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#
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# Create the custom target to attach the fragment files and template files
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# for the build to.
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function(ldgen_set_variables)
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add_custom_target(ldgen_section_infos)
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add_custom_target(ldgen DEPENDS ldgen_section_infos)
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endfunction()
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# ldgen_add_fragment_file
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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 target 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(fragment_file_abs_dir ${fragment_file} ABSOLUTE BASE_DIR ${component_dir})
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list(APPEND fragment_files_full_path ${fragment_file_abs_dir})
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endforeach()
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set_property(TARGET ldgen APPEND PROPERTY FRAGMENT_FILES ${fragment_files_full_path})
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endfunction()
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# ldgen_generate_sections_info
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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_generate_sections_info target)
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get_filename_component(target_sections_info ${CMAKE_CURRENT_BINARY_DIR}/${target}.sections_info ABSOLUTE)
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add_custom_command(
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OUTPUT ${target_sections_info}
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COMMAND ${CMAKE_OBJDUMP} $<TARGET_FILE:${target}> -h > ${target_sections_info}
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DEPENDS ${target}
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)
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add_custom_target(${target}_sections_info DEPENDS ${target_sections_info})
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add_dependencies(ldgen_section_infos ${target}_sections_info)
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set_property(TARGET ldgen_section_infos APPEND PROPERTY SECTIONS_INFO_FILES ${target_sections_info})
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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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get_filename_component(template ${template} ABSOLUTE BASE_DIR ${CMAKE_CURRENT_LIST_DIR})
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execute_process(COMMAND ${PYTHON} ${IDF_PATH}/tools/ldgen/lddeps.py ${template}
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OUTPUT_VARIABLE template_includes
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ERROR_VARIABLE template_includes_err
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)
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if(template_includes_err)
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message(FATAL_ERROR "Unable to parse linker script template for INCLUDEs\n" ${template_includes_err})
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endif()
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spaces2list(template_includes)
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file(GENERATE OUTPUT ${CMAKE_BINARY_DIR}/ldgen.section_infos
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CONTENT "$<JOIN:$<TARGET_PROPERTY:ldgen_section_infos,SECTIONS_INFO_FILES>,\n>")
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# Create command to invoke the linker script generator tool.
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add_custom_command(
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OUTPUT ${output}
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COMMAND ${IDF_PATH}/tools/ldgen/ldgen.py
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--config ${SDKCONFIG}
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--fragments "$<JOIN:$<TARGET_PROPERTY:ldgen,FRAGMENT_FILES>,\t>"
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--input ${template}
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--output ${output}
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--sections ${CMAKE_BINARY_DIR}/ldgen.section_infos
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--kconfig ${IDF_PATH}/Kconfig
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--env "COMPONENT_KCONFIGS=${COMPONENT_KCONFIGS}"
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--env "COMPONENT_KCONFIGS_PROJBUILD=${COMPONENT_KCONFIGS_PROJBUILD}"
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--env "IDF_CMAKE=y"
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--env "IDF_PATH=${IDF_PATH}"
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--env "IDF_TARGET=${IDF_TARGET}"
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DEPENDS ${template} $<TARGET_PROPERTY:ldgen,FRAGMENT_FILES> ${SDKCONFIG}
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ldgen_section_infos ${template_includes}
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)
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get_filename_component(output_name ${output} NAME)
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add_custom_target(ldgen_${output_name}_script DEPENDS ${output})
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add_dependencies(ldgen ldgen_${output_name}_script)
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endfunction()
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# ldgen_create_commands
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#
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# Create the command to generate the output scripts from templates presented.
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function(ldgen_add_dependencies)
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if(IDF_PROJECT_EXECUTABLE)
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add_dependencies(${IDF_PROJECT_EXECUTABLE} ldgen)
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endif()
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endfunction()
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