1 files changed, 95 insertions, 18 deletions

diff --git a/src/sim/main.cc b/src/sim/main.cc
index f3b74489d..f63aec9cc 100644
--- a/src/sim/main.cc
+++ b/src/sim/main.cc
@@ -57,9 +57,10 @@
 #include "base/time.hh"
 #include "cpu/base.hh"
 #include "cpu/smt.hh"
+#include "mem/mem_object.hh"
+#include "mem/port.hh"
 #include "sim/async.hh"
 #include "sim/builder.hh"
-#include "sim/configfile.hh"
 #include "sim/host.hh"
 #include "sim/sim_events.hh"
 #include "sim/sim_exit.hh"
@@ -296,26 +297,109 @@ main(int argc, char **argv)
     Py_Finalize();
 }
 
+IniFile inifile;
 
-/// Initialize C++ configuration.  Exported to Python via SWIG; invoked
-/// from m5.instantiate().
+SimObject *
+createSimObject(const string &name)
+{
+    return SimObjectClass::createObject(inifile, name);
+}
+
+
+/**
+ * Pointer to the Python function that maps names to SimObjects.
+ */
+PyObject *resolveFunc = NULL;
+
+/**
+ * Convert a pointer to the Python object that SWIG wraps around a C++
+ * SimObject pointer back to the actual C++ pointer.  See main.i.
+ */
+extern "C" SimObject *convertSwigSimObjectPtr(PyObject *);
+
+
+SimObject *
+resolveSimObject(const string &name)
+{
+    PyObject *pyPtr = PyEval_CallFunction(resolveFunc, "(s)", name.c_str());
+    if (pyPtr == NULL) {
+        PyErr_Print();
+        panic("resolveSimObject: failure on call to Python for %s", name);
+    }
+
+    SimObject *simObj = convertSwigSimObjectPtr(pyPtr);
+    if (simObj == NULL)
+        panic("resolveSimObject: failure on pointer conversion for %s", name);
+
+    return simObj;
+}
+
+
+/**
+ * Load config.ini into C++ database.  Exported to Python via SWIG;
+ * invoked from m5.instantiate().
+ */
 void
-initialize()
+loadIniFile(PyObject *_resolveFunc)
 {
+    resolveFunc = _resolveFunc;
     configStream = simout.find("config.out");
 
     // The configuration database is now complete; start processing it.
-    IniFile inifile;
     inifile.load("config.ini");
 
     // Initialize statistics database
     Stats::InitSimStats();
+}
+
+
+/**
+ * Look up a MemObject port.  Helper function for connectPorts().
+ */
+Port *
+lookupPort(SimObject *so, const std::string &name, int i)
+{
+    MemObject *mo = dynamic_cast<MemObject *>(so);
+    if (mo == NULL) {
+        warn("error casting SimObject %s to MemObject", so->name());
+        return NULL;
+    }
+
+    Port *p = mo->getPort(name, i);
+    if (p == NULL)
+        warn("error looking up port %s on object %s", name, so->name());
+    return p;
+}
 
-    // Now process the configuration hierarchy and create the SimObjects.
-    ConfigHierarchy configHierarchy(inifile);
-    configHierarchy.build();
-    configHierarchy.createSimObjects();
 
+/**
+ * Connect the described MemObject ports.  Called from Python via SWIG.
+ */
+int
+connectPorts(SimObject *o1, const std::string &name1, int i1,
+             SimObject *o2, const std::string &name2, int i2)
+{
+    Port *p1 = lookupPort(o1, name1, i1);
+    Port *p2 = lookupPort(o2, name2, i2);
+
+    if (p1 == NULL || p2 == NULL) {
+        warn("connectPorts: port lookup error");
+        return 0;
+    }
+
+    p1->setPeer(p2);
+    p2->setPeer(p1);
+
+    return 1;
+}
+
+/**
+ * Do final initialization steps after object construction but before
+ * start of simulation.
+ */
+void
+finalInit()
+{
     // Parse and check all non-config-hierarchy parameters.
     ParamContext::parseAllContexts(inifile);
     ParamContext::checkAllContexts();
@@ -323,20 +407,13 @@ initialize()
     // Echo all parameter settings to stats file as well.
     ParamContext::showAllContexts(*configStream);
 
-    // Any objects that can't connect themselves until after construction should
-    // do so now
-    SimObject::connectAll();
-
     // Do a second pass to finish initializing the sim objects
     SimObject::initAll();
 
     // Restore checkpointed state, if any.
+#if 0
     configHierarchy.unserializeSimObjects();
-
-    // Done processing the configuration database.
-    // Check for unreferenced entries.
-    if (inifile.printUnreferenced())
-        panic("unreferenced sections/entries in the intermediate ini file");
+#endif
 
     SimObject::regAllStats();