def METHOD_NAME():
    print("Usage: %s [option]" % sys.argv[0])
    print("Search used-but-defined and defined-but-not-used trace_XXX macros")
    print("")
    print("  --help:")
    print("        Show this help")
    print("")
    print("  --src-dirs=dir1:dir2:...")
    print("        Specify the directories of C source files to be checked")
    print("        Default is %s" % ":".join(SRC_FILE_DIRS))
    print("")
    print("  --def-files=file1:file2:...")
    print("        Specify the header files including FT_TRACE_DEF()")
    print("        Default is %s" % ":".join(TRACE_DEF_FILES))
    print("")