67 lines
2.1 KiB
CMake
67 lines
2.1 KiB
CMake
#
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# Functions and utilities for build reproducibility
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#
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# Set a target to be reproducible
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function(set_reproducible_target target)
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# properties for static libraries
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set_target_properties(${target} PROPERTIES STATIC_LIBRARY_OPTIONS "-D")
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# properties on executables
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target_link_options(${target} PRIVATE -fdebug-prefix-map=${CMAKE_SOURCE_DIR}=)
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target_link_options(${target} PRIVATE -fdebug-prefix-map=${CMAKE_BINARY_DIR}=)
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if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "8")
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target_compile_options(${target} PRIVATE -ffile-prefix-map=${CMAKE_SOURCE_DIR}=)
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endif()
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# properties on sources
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get_target_property(sources ${target} SOURCES)
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get_target_property(source_dir ${target} SOURCE_DIR)
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foreach(file IN LISTS sources)
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cmake_path(ABSOLUTE_PATH file BASE_DIRECTORY ${source_dir})
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cmake_path(RELATIVE_PATH file BASE_DIRECTORY ${CMAKE_SOURCE_DIR} OUTPUT_VARIABLE rpath)
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set_property(
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SOURCE ${file}
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DIRECTORY ${source_dir}
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APPEND
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PROPERTY COMPILE_OPTIONS "-frandom-seed=${rpath}"
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)
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endforeach()
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endfunction()
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# Get the list of targets for all directories
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function(get_all_targets _result _dir)
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get_property(
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_subdirs
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DIRECTORY "${_dir}"
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PROPERTY SUBDIRECTORIES
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)
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foreach(_subdir IN LISTS _subdirs)
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get_all_targets(${_result} "${_subdir}")
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endforeach()
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get_directory_property(_sub_targets DIRECTORY "${_dir}" BUILDSYSTEM_TARGETS)
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set(${_result}
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${${_result}} ${_sub_targets}
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PARENT_SCOPE
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)
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endfunction()
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# Make every target reproducible
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function(set_all_targets_reproducible)
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get_all_targets(targets ${CMAKE_SOURCE_DIR})
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foreach(target IN LISTS targets)
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set_reproducible_target(${target})
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endforeach()
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endfunction()
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# Set source epoch
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function(set_source_epoch epoch)
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set(ENV{SOURCE_DATE_EPOCH} ${epoch})
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if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "8")
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string(TIMESTAMP SOURCE_DATE_EPOCH "%Y-%m-%d")
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add_compile_definitions(SOURCE_DATE_EPOCH="${SOURCE_DATE_EPOCH}")
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string(TIMESTAMP SOURCE_TIME_EPOCH "%H:%M:%S")
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add_compile_definitions(SOURCE_TIME_EPOCH="${SOURCE_TIME_EPOCH}")
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endif()
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endfunction()
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