Fix wdticks command

- Type is Chain_Control
 - chain.node.next -> null

tools/gdb/python/objects.py

@@ -14,6 +14,7 @@ class infotables:
 
     tables_types = {
         'internal/time'          : ('TOD_Control',           '_TOD'),
+        'internal/wdticks'       : ('Chain_Control',        '_Watchdog_Ticks_chain'),
 
         'classic/tasks'          : ('Thread_Control',        '_RTEMS_tasks_Information'),
         'classic/timers'         : ('Timer_Control',         '_Timer_Information'),

tools/gdb/python/rtems.py

@@ -11,6 +11,7 @@ import re
 import objects
 import threads
 import chains
+import watchdog
 import supercore
 import classic
 
@@ -227,10 +228,14 @@ class rtems_watchdog_chain(gdb.Command):
             return
 
         nd = inst.first()
+        i = 0
+        print '  Ticks Chain'
         while not nd.null():
             wd = watchdog.control(nd.cast('Watchdog_Control'))
-            wd.show()
-            nd = nd.next()
+            print ' #'+str(i)
+            print wd.to_string()
+            nd.next()
+            i += 1
 
 class rtems_wdt(rtems_watchdog_chain):
 

tools/gdb/python/watchdog.py

@@ -52,10 +52,15 @@ class control:
         addr = self.ctrl['routine']
         return str(addr)
 
+    def to_string(self):
+        val = ""
+        val += "     State:" + str(self.state())
+        val += "\n     Intial Interval:" + str(self.initial())
+        val += "\n     Delta Interval:"+ str(self.delta_interval())
+        val += "\n     Start time:" + str(self.start_time())
+        val += "\n     Stop time:" + str(self.stop_time())
+        val += "\n     WD Routine:" + str(self.routine())
+        return val
+
     def show(self):
-        print "     State:", self.state()
-        print "     Intial Interval:", self.initial()
-        print "     Delta Interval:", self.delta_interval()
-        print "     Start time:", self.start_time()
-        print "     Stop time:", self.stop_time()
-        print "     WD Routine:", self.routine()
+        print self.to_string()