esp-idf/tools/cmake/ldgen.cmake

81 wiersze
3.1 KiB
CMake

# Utilities for supporting linker script generation in the build system
# __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 fragment_files)
spaces2list(fragment_files)
foreach(fragment_file ${fragment_files})
get_filename_component(abs_path ${fragment_file} ABSOLUTE)
list(APPEND _fragment_files ${abs_path})
endforeach()
idf_build_set_property(__LDGEN_FRAGMENT_FILES "${_fragment_files}" APPEND)
endfunction()
# __ldgen_add_component
#
# Generate sections info for specified target to be used in linker script generation
function(__ldgen_add_component component_lib)
idf_build_set_property(__LDGEN_LIBRARIES "$<TARGET_FILE:${component_lib}>" APPEND)
idf_build_set_property(__LDGEN_DEPENDS ${component_lib} APPEND)
endfunction()
# __ldgen_process_template
#
# Passes a linker script template to the linker script generation tool for
# processing
function(__ldgen_process_template template output)
idf_build_get_property(idf_target IDF_TARGET)
idf_build_get_property(idf_path IDF_PATH)
idf_build_get_property(build_dir BUILD_DIR)
idf_build_get_property(ldgen_libraries __LDGEN_LIBRARIES GENERATOR_EXPRESSION)
file(GENERATE OUTPUT ${build_dir}/ldgen_libraries.in CONTENT $<JOIN:${ldgen_libraries},\n>)
file(GENERATE OUTPUT ${build_dir}/ldgen_libraries INPUT ${build_dir}/ldgen_libraries.in)
set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES
"${build_dir}/ldgen_libraries.in"
"${build_dir}/ldgen_libraries")
idf_build_get_property(ldgen_fragment_files __LDGEN_FRAGMENT_FILES GENERATOR_EXPRESSION)
idf_build_get_property(ldgen_depends __LDGEN_DEPENDS GENERATOR_EXPRESSION)
# Create command to invoke the linker script generator tool.
idf_build_get_property(sdkconfig SDKCONFIG)
idf_build_get_property(root_kconfig __ROOT_KCONFIG)
idf_build_get_property(python PYTHON)
idf_build_get_property(config_env_path CONFIG_ENV_PATH)
if($ENV{LDGEN_CHECK_MAPPING})
set(ldgen_check "--check-mapping"
"--check-mapping-exceptions" "${idf_path}/tools/ci/check_ldgen_mapping_exceptions.txt")
message(STATUS "Mapping check enabled in ldgen")
endif()
add_custom_command(
OUTPUT ${output}
COMMAND ${python} "${idf_path}/tools/ldgen/ldgen.py"
--config "${sdkconfig}"
--fragments-list "${ldgen_fragment_files}"
--input "${template}"
--output "${output}"
--kconfig "${root_kconfig}"
--env-file "${config_env_path}"
--libraries-file "${build_dir}/ldgen_libraries"
--objdump "${CMAKE_OBJDUMP}"
${ldgen_check}
DEPENDS ${template} ${ldgen_fragment_files} ${ldgen_depends} ${SDKCONFIG}
VERBATIM
)
get_filename_component(_name ${output} NAME)
add_custom_target(__ldgen_output_${_name} DEPENDS ${output})
add_dependencies(__idf_build_target __ldgen_output_${_name})
idf_build_set_property(__LINK_DEPENDS ${output} APPEND)
endfunction()