1from xnu import * 2import logging 3_usertaskdebugging_availabe = False 4try: 5 from usertaskdebugging import userprocess 6 from usertaskdebugging import gdbserver 7 _usertaskdebugging_availabe = True 8except ImportError: 9 pass 10 11def setupLogging(debug_level): 12 log_level = debug_level 13 log_filename = "/tmp/kdbserver.log" 14 logging.basicConfig(level=log_level, 15 format='%(asctime)s %(module)s %(levelname)s: %(message)s', 16 datefmt='%Y-%m-%d %H:%M:%S') 17 18 19@lldb_command('beginusertaskdebugging', 'DW') 20def DoUserTaskDebuggingServer(cmd_args = [], cmd_options ={}): 21 """ starts a gdb protocol server that is backed by <task_t> in kernel debugging session. 22 Usage: (lldb) beginusertaskdebugging <task_t> 23 options: -D for debug level logging 24 -W for warning level logging. 25 default is error level logging 26 """ 27 if not _usertaskdebugging_availabe: 28 print("You do not have the usertask debugging files available. ") 29 return 30 log_level = logging.INFO 31 if '-D' in cmd_options: 32 log_level = logging.DEBUG 33 elif '-W' in cmd_options: 34 log_level = logging.WARNING 35 36 setupLogging(debug_level=log_level) 37 if not cmd_args: 38 raise ArgumentError("Please provide valid task argument.") 39 40 t = kern.GetValueFromAddress(cmd_args[0], 'task_t') 41 42 up = userprocess.UserProcess(t) 43 gbs = gdbserver.GDBServer(up) 44 print("Starting debug session for %s at localhost:%d." % (GetProcNameForTask(t), gbs.portnum)) 45 gbs.run() 46 print("stopped the debug session") 47