2 files changed, 23 insertions, 6 deletions
diff --git a/src/sim/serialize.cc b/src/sim/serialize.cc
index a4851d3f6..ee9b04236 100644
--- a/src/sim/serialize.cc
+++ b/src/sim/serialize.cc
@@ -394,6 +394,24 @@ Globals::unserialize(Checkpoint *cp)
     mainEventQueue.unserialize(cp, "MainEventQueue");
 }
 
+Serializable::Serializable()
+{
+}
+
+Serializable::~Serializable()
+{
+}
+
+void
+Serializable::serialize(std::ostream &os)
+{
+}
+
+void
+Serializable::unserialize(Checkpoint *cp, const std::string &section)
+{
+}
+
 void
 Serializable::serializeAll(const std::string &cpt_dir)
 {
diff --git a/src/sim/serialize.hh b/src/sim/serialize.hh
index 4c5f399e6..c33633065 100644
--- a/src/sim/serialize.hh
+++ b/src/sim/serialize.hh
@@ -121,17 +121,16 @@ class Serializable
     void nameOut(std::ostream &os, const std::string &_name);
 
   public:
-    Serializable() {}
-    virtual ~Serializable() {}
+    Serializable();
+    virtual ~Serializable();
 
     // manditory virtual function, so objects must provide names
     virtual const std::string name() const = 0;
 
-    virtual void serialize(std::ostream &os) {}
-    virtual void unserialize(Checkpoint *cp, const std::string &section) {}
+    virtual void serialize(std::ostream &os);
+    virtual void unserialize(Checkpoint *cp, const std::string &section);
 
-    static Serializable *create(Checkpoint *cp,
-                                 const std::string &section);
+    static Serializable *create(Checkpoint *cp, const std::string &section);
 
     static int ckptCount;
     static int ckptMaxCount;