gem5: restore works now

The function restore(PATH) can now be used to restore a checkpoint.

Change-Id: I25faf9f6335261d2b3ade4185eae93983ece9f97

simulators/gem5/src/sim/serialize.cc

@@ -512,6 +512,13 @@ Serializable::unserializeGlobals(Checkpoint *cp)
   globals.unserialize(cp, globals.name());
 }
 
+//DanceOS
+void
+Serializable::loadStateAll(Checkpoint *cp)
+{
+    SimObject::loadStateAll(cp);
+}
+
 void
 debug_serialize(const string &cpt_dir)
 {

simulators/gem5/src/sim/serialize.hh

@@ -170,6 +170,7 @@ class Serializable
     static int ckptPrevCount;
     static void serializeAll(const std::string &cpt_dir);
     static void unserializeGlobals(Checkpoint *cp);
+    static void loadStateAll(Checkpoint *cp); //DanceOS
 };
 
 //

simulators/gem5/src/sim/sim_object.cc

@@ -130,6 +130,21 @@ SimObject::serializeAll(ostream &os)
    }
 }
 
+//DanceOS
+// static function: loadState all SimObjects.
+//
+void
+SimObject::loadStateAll(Checkpoint *cp)
+{
+    SimObjectList::iterator ri = simObjectList.begin();
+    SimObjectList::iterator rend = simObjectList.end();
+
+    for (; ri != rend; ++ri) {
+        SimObject *obj = *ri;
+        obj->loadState(cp);
+    }
+}
+
 
 #ifdef DEBUG
 //

simulators/gem5/src/sim/sim_object.hh

@@ -139,6 +139,7 @@ class SimObject : public EventManager, public Serializable
 
     // static: call nameOut() & serialize() on all SimObjects
     static void serializeAll(std::ostream &);
+    static void loadStateAll(Checkpoint *cp); //DanceOS
 
     // Methods to drain objects in order to take checkpoints
     // Or switch from timing -> atomic memory model