kc3-lang/libressl/cmake_export_symbol.cmake

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• Hash : 3625c50f
  Author :
  Date : 2018-03-16T12:15:30
  

  Use binary directory for symbol exports generation
  
  Currently the CMake files generate symbols into the source tree when they should go into the build tree.
  

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• cmake_export_symbol.cmake

• macro(export_symbol TARGET SYMBOLS_PATH)
  
  	set(FLAG "")
  	get_filename_component(FILENAME ${SYMBOLS_PATH} NAME)
  
  	if(WIN32)
  		string(REPLACE ".sym" ".def" DEF_FILENAME ${FILENAME})
  		file(TO_CMAKE_PATH "${CMAKE_CURRENT_BINARY_DIR}/${DEF_FILENAME}" DEF_PATH)
  		file(WRITE ${DEF_PATH} "EXPORTS\n")
  		file(READ ${SYMBOLS_PATH} SYMBOLS)
  		file(APPEND ${DEF_PATH} "${SYMBOLS}")
  		target_sources(${TARGET} PRIVATE ${DEF_PATH})
  
  	elseif(APPLE)
  		file(READ ${SYMBOLS_PATH} SYMBOLS)
  		string(REGEX REPLACE "\n$" "" SYMBOLS ${SYMBOLS})
  		string(REPLACE "\n" "\n_" SYMBOLS ${SYMBOLS})
  		string(REGEX REPLACE "(.)$" "\\1\\n" SYMBOLS ${SYMBOLS})
  		string(REPLACE ".sym" ".exp" EXP_FILENAME ${FILENAME})
  		file(TO_CMAKE_PATH "${CMAKE_CURRENT_BINARY_DIR}/${EXP_FILENAME}" EXP_PATH)
  		file(WRITE ${EXP_PATH} "_${SYMBOLS}")
  		set(FLAG "-exported_symbols_list ${EXP_PATH}")
  		set_target_properties(${TARGET} PROPERTIES LINK_FLAGS ${FLAG})
  
  	elseif(CMAKE_SYSTEM_NAME MATCHES "HP-UX")
  		file(READ ${SYMBOLS_PATH} SYMBOLS)
  		string(REGEX REPLACE "\n$" "" SYMBOLS ${SYMBOLS})
  		string(REPLACE "\n" "\n+e " SYMBOLS ${SYMBOLS})
  		string(REPLACE ".sym" ".opt" OPT_FILENAME ${FILENAME})
  		file(TO_CMAKE_PATH "${CMAKE_CURRENT_BINARY_DIR}/${OPT_FILENAME}" OPT_PATH)
  		file(WRITE ${OPT_PATH} "+e ${SYMBOLS}")
  		set(FLAG "-Wl,-c,${OPT_PATH}")
  		set_target_properties(${TARGET} PROPERTIES LINK_FLAGS ${FLAG})
  
  	elseif(CMAKE_SYSTEM_NAME MATCHES "SunOS")
  		file(READ ${SYMBOLS_PATH} SYMBOLS)
  		string(REPLACE "\n" ";\n" SYMBOLS ${SYMBOLS})
  		string(REPLACE ".sym" ".ver" VER_FILENAME ${FILENAME})
  		file(TO_CMAKE_PATH "${CMAKE_CURRENT_BINARY_DIR}/${VER_FILENAME}" VER_PATH)
  		file(WRITE ${VER_PATH}
  			"{\nglobal:\n${SYMBOLS}\nlocal:\n*;\n};\n")
  		set(FLAG "-Wl,-M${VER_PATH}")
  		set_target_properties(${TARGET} PROPERTIES LINK_FLAGS ${FLAG})
  
  	elseif(CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
  		file(READ ${SYMBOLS_PATH} SYMBOLS)
  		string(REPLACE "\n" ";\n" SYMBOLS ${SYMBOLS})
  		string(REPLACE ".sym" ".ver" VER_FILENAME ${FILENAME})
  		file(TO_CMAKE_PATH "${CMAKE_CURRENT_BINARY_DIR}/${VER_FILENAME}" VER_PATH)
  		file(WRITE ${VER_PATH}
  			"{\nglobal:\n${SYMBOLS}\nlocal:\n*;\n};\n")
  		set(FLAG "-Wl,--version-script,\"${VER_PATH}\"")
  		set_target_properties(${TARGET} PROPERTIES LINK_FLAGS ${FLAG})
  	endif()
  
  endmacro()
  

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