OVMS3-idf/tools/cmake/ldgen.cmake

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# Utilities for supporting linker script generation in the build system
# ldgen_set_variables
#
# Create the custom target to attach the fragment files and template files
# for the build to.
function(ldgen_set_variables)
add_custom_target(ldgen)
endfunction()
# ldgen_add_fragment_files
#
# Add one or more linker fragment files, and append it to the list of fragment
# files found so far.
function(ldgen_add_fragment_files component fragment_files)
spaces2list(fragment_files)
foreach(fragment_file ${fragment_files})
get_filename_component(_fragment_file ${fragment_file} ABSOLUTE)
list(APPEND _fragment_files ${_fragment_file})
endforeach()
set_property(TARGET ldgen APPEND PROPERTY FRAGMENT_FILES ${_fragment_files})
endfunction()
# ldgen_component_add
#
# Add component to known libraries for linker script generation
function(ldgen_component_add component_lib)
set_property(TARGET ldgen APPEND PROPERTY OUTPUT_LIBRARIES "$<TARGET_FILE:${component_lib}>")
set_property(TARGET ldgen APPEND PROPERTY LIBRARIES ${component_lib})
endfunction()
# ldgen_process_template
#
# Passes a linker script template to the linker script generation tool for
# processing
function(ldgen_process_template template output)
get_property(output_libraries TARGET ldgen PROPERTY OUTPUT_LIBRARIES)
file(GENERATE OUTPUT ${CMAKE_BINARY_DIR}/ldgen_libraries.in CONTENT "$<JOIN:${output_libraries},\n>")
file(GENERATE OUTPUT ${CMAKE_BINARY_DIR}/ldgen_libraries INPUT ${CMAKE_BINARY_DIR}/ldgen_libraries.in)
get_filename_component(filename "${template}" NAME_WE)
set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES
"${CMAKE_BINARY_DIR}/ldgen_libraries.in"
"${CMAKE_BINARY_DIR}/ldgen_libraries")
add_custom_command(
OUTPUT ${output}
COMMAND ${PYTHON} ${IDF_PATH}/tools/ldgen/ldgen.py
--config ${SDKCONFIG}
--fragments "$<JOIN:$<TARGET_PROPERTY:ldgen,FRAGMENT_FILES>,\t>"
--input ${template}
--output ${output}
--kconfig ${ROOT_KCONFIG}
--env "COMPONENT_KCONFIGS=${COMPONENT_KCONFIGS}"
--env "COMPONENT_KCONFIGS_PROJBUILD=${COMPONENT_KCONFIGS_PROJBUILD}"
--env "IDF_CMAKE=y"
--env "IDF_PATH=${IDF_PATH}"
--env "IDF_TARGET=${IDF_TARGET}"
--libraries-file ${CMAKE_BINARY_DIR}/ldgen_libraries
--objdump ${CMAKE_OBJDUMP}
DEPENDS ${template} $<TARGET_PROPERTY:ldgen,FRAGMENT_FILES>
$<TARGET_PROPERTY:ldgen,LIBRARIES> ${SDKCONFIG}
)
get_filename_component(output_name ${output} NAME)
add_custom_target(ldgen_${output_name}_script DEPENDS ${output})
add_dependencies(ldgen ldgen_${output_name}_script)
endfunction()
# ldgen_add_dependencies
#
# Add dependency of project executable to ldgen custom target.
function(ldgen_add_dependencies)
if(IDF_PROJECT_EXECUTABLE)
add_dependencies(${IDF_PROJECT_EXECUTABLE} ldgen)
endif()
endfunction()