119 строки
3.2 KiB
CMake
119 строки
3.2 KiB
CMake
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# Copyright (c) 2018 Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
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#
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# Redistribution and use is allowed according to the terms of the New
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# BSD license.
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# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
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#
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#.rst:
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# GenerateMap
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# -----------
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#
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# This is a helper script for FindABImap.cmake.
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#
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# Generates a symbols version script using the abimap tool.
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# This script is run in build time to use the correct command depending on the
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# existence of the file provided ``CURRENT_MAP``.
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#
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# If the file exists, the ``abimap update`` subcommand is used to update the
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# existing map. Otherwise, the ``abimap new`` subcommand is used to create a new
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# map file.
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#
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# If the file provided in ``CURRENT_MAP`` exists, it is copied to the
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# ``OUTPUT_PATH`` before updating.
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# This is required because ``abimap`` do not generate output if no symbols were
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# changed when updating an existing file.
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#
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# Expected defined variables
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# --------------------------
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#
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# ``SYMBOLS``:
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# Required file containing the symbols to be used as input. Usually this is
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# the ``OUTPUT`` generated by ``extract_symbols()`` function provided in
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# FindABImap.cmake
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#
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# ``RELEASE_NAME_VERSION``:
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# Required, expects the library name and version information to be added to
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# the symbols in the format ``library_name_1_2_3``
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#
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# ``CURRENT_MAP``:
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# Required, expects the path to the current map file (or the path were it
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# should be)
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#
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# ``OUTPUT_PATH``:
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# Required, expects the output file path.
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#
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# ``ABIMAP_EXECUTABLE``:
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# Required, expects the path to the ``abimap`` tool.
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#
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# Optionally defined variables
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# ----------------------------
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#
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# ``FINAL``:
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# If defined, will mark the modified set of symbols in the symbol version
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# script as final, preventing later changes using ``abimap``.
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#
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# ``BREAK_ABI``:
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# If defined, the build will not fail if symbols were removed.
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# If defined and a symbol is removed, a new release is created containing
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# all symbols from all released versions. This makes an incompatible release.
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#
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if (NOT DEFINED RELEASE_NAME_VERSION)
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message(SEND_ERROR "RELEASE_NAME_VERSION not defined")
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endif()
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if (NOT DEFINED SYMBOLS)
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message(SEND_ERROR "SYMBOLS not defined")
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endif()
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if (NOT DEFINED CURRENT_MAP)
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message(SEND_ERROR "CURRENT_MAP not defined")
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endif()
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if (NOT DEFINED OUTPUT_PATH)
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message(SEND_ERROR "OUTPUT_PATH not defined")
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endif()
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if (NOT ABIMAP_EXECUTABLE)
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message(SEND_ERROR "ABIMAP_EXECUTABLE not defined")
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endif()
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set(ARGS_LIST)
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if (FINAL)
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list(APPEND ARGS_LIST "--final")
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endif()
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if (EXISTS ${CURRENT_MAP})
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if (BREAK_ABI)
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list(APPEND ARGS_LIST "--allow-abi-break")
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endif()
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execute_process(
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COMMAND
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${CMAKE_COMMAND} -E copy_if_different ${CURRENT_MAP} ${OUTPUT_PATH}
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COMMAND
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${ABIMAP_EXECUTABLE} update ${ARGS_LIST}
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-r ${RELEASE_NAME_VERSION}
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-i ${SYMBOLS}
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-o ${OUTPUT_PATH}
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${CURRENT_MAP}
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RESULT_VARIABLE result
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)
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else ()
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execute_process(
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COMMAND
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${ABIMAP_EXECUTABLE} new ${ARGS_LIST}
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-r ${RELEASE_NAME_VERSION}
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-i ${SYMBOLS}
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-o ${OUTPUT_PATH}
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RESULT_VARIABLE result
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)
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endif()
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if (NOT "${result}" STREQUAL "0")
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message(SEND_ERROR "Map generation failed")
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endif()
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