# This tool creates a shared library from the LLVM libraries. Generating this # library is enabled by setting LLVM_BUILD_LLVM_DYLIB=yes on the CMake # commandline. By default the shared library only exports the LLVM C API. # You can configure which libraries from LLVM you want to include in the shared # library by setting LLVM_DYLIB_COMPONENTS to a semi-colon delimited list of # LLVM components. All compoenent names handled by llvm-config are valid. if(NOT DEFINED LLVM_DYLIB_COMPONENTS) set(LLVM_DYLIB_COMPONENTS ${LLVM_TARGETS_TO_BUILD} Analysis BitReader BitWriter CodeGen Core ExecutionEngine IPA IPO IRReader InstCombine Instrumentation Interpreter Linker MCDisassembler MCJIT ObjCARCOpts Object ScalarOpts Support Target TransformUtils Vectorize native ) endif() add_definitions( -DLLVM_VERSION_INFO=\"${PACKAGE_VERSION}\" ) set(SOURCES libllvm.cpp ) llvm_map_components_to_libnames(LIB_NAMES ${LLVM_DYLIB_COMPONENTS}) if(NOT DEFINED LLVM_DYLIB_EXPORTED_SYMBOL_FILE) if( WIN32 AND NOT CYGWIN ) message(FATAL_ERROR "Auto-generation not implemented for Win32 without GNU utils. Please specify LLVM_EXPORTED_SYMBOL_FILE.") endif() # To get the export list for a single llvm library: # nm ${LIB_PATH} | awk "/T _LLVM/ { print $3 }" | sort -u | sed -e "s/^_//g" > ${LIB_PATH}.exports set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_BINARY_DIR}/libllvm.exports) if (NOT LLVM_DYLIB_EXPORT_ALL) foreach (lib ${LIB_NAMES}) set(LIB_DIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX}) set(LIB_NAME ${LIB_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}${lib}) set(LIB_PATH ${LIB_NAME}${CMAKE_STATIC_LIBRARY_SUFFIX}) set(LIB_EXPORTS_PATH ${LIB_NAME}.exports) list(APPEND LLVM_DYLIB_REQUIRED_EXPORTS ${LIB_EXPORTS_PATH}) add_custom_command(OUTPUT ${LIB_EXPORTS_PATH} COMMAND nm ${LIB_PATH} | awk "/T _LLVM/ || /T LLVM/ { print $3 }" | sort -u | sed -e "s/^_//g" > ${LIB_EXPORTS_PATH} WORKING_DIRECTORY ${LIB_DIR} DEPENDS ${lib} COMMENT "Generating Export list for ${lib}..." VERBATIM ) endforeach () endif() if (LLVM_DYLIB_EXPORT_ALL) add_custom_command(OUTPUT ${LLVM_EXPORTED_SYMBOL_FILE} COMMAND echo "LLVM*" > ${LLVM_EXPORTED_SYMBOL_FILE} && echo "_ZN4llvm*" >> ${LLVM_EXPORTED_SYMBOL_FILE} WORKING_DIRECTORY ${LIB_DIR} DEPENDS ${LLVM_DYLIB_REQUIRED_EXPORTS} COMMENT "Generating combined export list...") else() add_custom_command(OUTPUT ${LLVM_EXPORTED_SYMBOL_FILE} COMMAND cat ${LLVM_DYLIB_REQUIRED_EXPORTS} > ${LLVM_EXPORTED_SYMBOL_FILE} WORKING_DIRECTORY ${LIB_DIR} DEPENDS ${LLVM_DYLIB_REQUIRED_EXPORTS} COMMENT "Generating combined export list...") endif() add_custom_target(libLLVMExports DEPENDS ${LLVM_EXPORTED_SYMBOL_FILE}) else() set(LLVM_EXPORTED_SYMBOL_FILE ${LLVM_DYLIB_EXPORTED_SYMBOL_FILE}) add_custom_target(libLLVMExports DEPENDS ${LLVM_EXPORTED_SYMBOL_FILE}) endif() add_llvm_library(LLVM SHARED ${SOURCES}) list(REMOVE_DUPLICATES LIB_NAMES) if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux") # FIXME: It should be "GNU ld for elf" # GNU ld doesn't resolve symbols in the version script. set(LIB_NAMES -Wl,--whole-archive ${LIB_NAMES} -Wl,--no-whole-archive) elseif("${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin") set(LIB_NAMES -Wl,-all_load ${LIB_NAMES}) endif() target_link_libraries(LLVM PRIVATE ${LIB_NAMES}) add_dependencies(LLVM libLLVMExports) if (APPLE) set_property(TARGET LLVM APPEND_STRING PROPERTY LINK_FLAGS " -compatibility_version ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR} -current_version ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}") endif()