Add functional PrintReq command for memory-system debugging.

--HG--
extra : convert_revision : 73b753e57c355b7e6873f047ddc8cb371c3136b7

src/sim/sim_object.cc

@@ -264,3 +264,19 @@ SimObject::takeOverFrom(BaseCPU *cpu)
 {
     panic("Unimplemented!");
 }
+
+
+SimObject *
+SimObject::find(const char *name)
+{
+    SimObjectList::const_iterator i = simObjectList.begin();
+    SimObjectList::const_iterator end = simObjectList.end();
+
+    for (; i != end; ++i) {
+        SimObject *obj = *i;
+        if (obj->name() == name)
+            return obj;
+    }
+
+    return NULL;
+}

src/sim/sim_object.hh

@@ -131,6 +131,13 @@ class SimObject : public Serializable, protected StartupCallback
     static void debugObjectBreak(const std::string &objs);
 #endif
 
+    /**
+     * Find the SimObject with the given name and return a pointer to
+     * it.  Priarily used for interactive debugging.  Argument is
+     * char* rather than std::string to make it callable from gdb.
+     */
+    static SimObject *find(const char *name);
+
   public:
     void recordEvent(const std::string &stat);
 };