50 lines
2.3 KiB
CMake
50 lines
2.3 KiB
CMake
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# Function to compile a source file to identify the compiler ABI.
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# This is used internally by CMake and should not be included by user
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# code.
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FUNCTION(CMAKE_DETERMINE_COMPILER_ABI lang src)
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IF(NOT DEFINED CMAKE_DETERMINE_${lang}_ABI_COMPILED)
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MESSAGE(STATUS "Detecting ${lang} compiler info")
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# Compile the ABI identification source.
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SET(BIN "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeDetermineCompilerABI_${lang}.bin")
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TRY_COMPILE(CMAKE_DETERMINE_${lang}_ABI_COMPILED
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${CMAKE_BINARY_DIR} ${src}
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OUTPUT_VARIABLE OUTPUT
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COPY_FILE "${BIN}"
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)
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# Load the resulting information strings.
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IF(CMAKE_DETERMINE_${lang}_ABI_COMPILED)
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MESSAGE(STATUS "Detecting ${lang} compiler info - done")
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
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"Detecting ${lang} compiler info compiled with the following output:\n${OUTPUT}\n\n")
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FILE(STRINGS "${BIN}" ABI_STRINGS LIMIT_COUNT 2 REGEX "INFO:[^[]*\\[")
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FOREACH(info ${ABI_STRINGS})
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IF("${info}" MATCHES ".*INFO:sizeof_dptr\\[0*([^]]*)\\].*")
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STRING(REGEX REPLACE ".*INFO:sizeof_dptr\\[0*([^]]*)\\].*" "\\1" ABI_SIZEOF_DPTR "${info}")
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ENDIF("${info}" MATCHES ".*INFO:sizeof_dptr\\[0*([^]]*)\\].*")
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IF("${info}" MATCHES ".*INFO:abi\\[([^]]*)\\].*")
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STRING(REGEX REPLACE ".*INFO:abi\\[([^]]*)\\].*" "\\1" ABI_NAME "${info}")
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ENDIF("${info}" MATCHES ".*INFO:abi\\[([^]]*)\\].*")
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ENDFOREACH(info)
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IF(ABI_SIZEOF_DPTR)
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SET(CMAKE_${lang}_SIZEOF_DATA_PTR "${ABI_SIZEOF_DPTR}" PARENT_SCOPE)
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SET(CMAKE_SIZEOF_VOID_P "${ABI_SIZEOF_DPTR}" PARENT_SCOPE)
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ENDIF(ABI_SIZEOF_DPTR)
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IF(ABI_NAME)
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SET(CMAKE_${lang}_COMPILER_ABI "${ABI_NAME}" PARENT_SCOPE)
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SET(CMAKE_INTERNAL_PLATFORM_ABI "${ABI_NAME}" PARENT_SCOPE)
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ENDIF(ABI_NAME)
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ELSE(CMAKE_DETERMINE_${lang}_ABI_COMPILED)
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MESSAGE(STATUS "Detecting ${lang} compiler info - failed")
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FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
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"Detecting ${lang} compiler info failed to compile with the following output:\n${OUTPUT}\n\n")
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ENDIF(CMAKE_DETERMINE_${lang}_ABI_COMPILED)
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ENDIF(NOT DEFINED CMAKE_DETERMINE_${lang}_ABI_COMPILED)
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ENDFUNCTION(CMAKE_DETERMINE_COMPILER_ABI)
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