Device: make add_arguments optional

Author: none

device.py

@@ -42,7 +42,7 @@ def __init__(self, args, name, required_options=None, **options):
         self._asserted_ipl = 0
 
     @classmethod
-    def add_arguments(cls, parser):
+    def add_global_arguments(cls, parser):
         """Common arguments applying to all devices"""
         parser.add_argument('--debug-device',
                             action='append',
@@ -52,6 +52,10 @@ def add_arguments(cls, parser):
                             ' to trace device framework.')
         Register.add_arguments(parser)
 
+    @classmethod
+    def add_arguments(cls, parser):
+        pass
+
     ########################################
     # Devices
 

py68k.py

@@ -59,7 +59,7 @@
     target = importlib.import_module('targets.' + args.target)
     Emulator.add_arguments(parser)
     Trace.add_arguments(parser)
-    Device.add_arguments(parser)
+    Device.add_global_arguments(parser)
     RootDevice.add_arguments(parser)
     target.add_arguments(parser)