1 function(find_compiler_rt_library name dest) 2 if (NOT DEFINED LIBUNWIND_COMPILE_FLAGS) 3 message(FATAL_ERROR "LIBUNWIND_COMPILE_FLAGS must be defined when using this function") 4 endif() 5 set(dest "" PARENT_SCOPE) 6 set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${LIBUNWIND_COMPILE_FLAGS} 7 "--rtlib=compiler-rt" "--print-libgcc-file-name") 8 if (CMAKE_CXX_COMPILER_ID MATCHES Clang AND CMAKE_CXX_COMPILER_TARGET) 9 list(APPEND CLANG_COMMAND "--target=${CMAKE_CXX_COMPILER_TARGET}") 10 endif() 11 get_property(LIBUNWIND_CXX_FLAGS CACHE CMAKE_CXX_FLAGS PROPERTY VALUE) 12 string(REPLACE " " ";" LIBUNWIND_CXX_FLAGS "${LIBUNWIND_CXX_FLAGS}") 13 list(APPEND CLANG_COMMAND ${LIBUNWIND_CXX_FLAGS}) 14 execute_process( 15 COMMAND ${CLANG_COMMAND} 16 RESULT_VARIABLE HAD_ERROR 17 OUTPUT_VARIABLE LIBRARY_FILE 18 ) 19 string(STRIP "${LIBRARY_FILE}" LIBRARY_FILE) 20 file(TO_CMAKE_PATH "${LIBRARY_FILE}" LIBRARY_FILE) 21 string(REPLACE "builtins" "${name}" LIBRARY_FILE "${LIBRARY_FILE}") 22 if (NOT HAD_ERROR AND EXISTS "${LIBRARY_FILE}") 23 message(STATUS "Found compiler-rt library: ${LIBRARY_FILE}") 24 set(${dest} "${LIBRARY_FILE}" PARENT_SCOPE) 25 else() 26 message(STATUS "Failed to find compiler-rt library") 27 endif() 28 endfunction() 29 30 function(find_compiler_rt_dir dest) 31 if (NOT DEFINED LIBUNWIND_COMPILE_FLAGS) 32 message(FATAL_ERROR "LIBUNWIND_COMPILE_FLAGS must be defined when using this function") 33 endif() 34 set(dest "" PARENT_SCOPE) 35 if (APPLE) 36 set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${LIBUNWIND_COMPILE_FLAGS} 37 "-print-file-name=lib") 38 execute_process( 39 COMMAND ${CLANG_COMMAND} 40 RESULT_VARIABLE HAD_ERROR 41 OUTPUT_VARIABLE LIBRARY_DIR 42 ) 43 string(STRIP "${LIBRARY_DIR}" LIBRARY_DIR) 44 file(TO_CMAKE_PATH "${LIBRARY_DIR}" LIBRARY_DIR) 45 set(LIBRARY_DIR "${LIBRARY_DIR}/darwin") 46 else() 47 set(CLANG_COMMAND ${CMAKE_CXX_COMPILER} ${LIBUNWIND_COMPILE_FLAGS} 48 "--rtlib=compiler-rt" "--print-libgcc-file-name") 49 execute_process( 50 COMMAND ${CLANG_COMMAND} 51 RESULT_VARIABLE HAD_ERROR 52 OUTPUT_VARIABLE LIBRARY_FILE 53 ) 54 string(STRIP "${LIBRARY_FILE}" LIBRARY_FILE) 55 file(TO_CMAKE_PATH "${LIBRARY_FILE}" LIBRARY_FILE) 56 get_filename_component(LIBRARY_DIR "${LIBRARY_FILE}" DIRECTORY) 57 endif() 58 if (NOT HAD_ERROR AND EXISTS "${LIBRARY_DIR}") 59 message(STATUS "Found compiler-rt directory: ${LIBRARY_DIR}") 60 set(${dest} "${LIBRARY_DIR}" PARENT_SCOPE) 61 else() 62 message(STATUS "Failed to find compiler-rt directory") 63 endif() 64 endfunction() 65
