config: Add a --without-python option to build process

Add the ability to build libgem5 without embedded Python or the
ability to configure with Python.

This is a prelude to a patch to allow config.ini files to be loaded
into libgem5 using only C++ which would make embedding gem5 within
other simulation systems easier.

This adds a few registration interfaces to things which cross
between Python and C++.  Namely: stats dumping and SimObject resolving

1 files changed, 8 insertions, 6 deletions

diff --git a/src/python/swig/pyobject.hh b/src/python/swig/pyobject.hh
index 8debcc82c..a4f06555e 100644
--- a/src/python/swig/pyobject.hh
+++ b/src/python/swig/pyobject.hh
@@ -36,7 +36,12 @@
 #include "sim/sim_object.hh"
 
 extern "C" SimObject *convertSwigSimObjectPtr(PyObject *);
-SimObject *resolveSimObject(const std::string &name);
+
+/** Resolve a SimObject name using the Python configuration */
+class PythonSimObjectResolver : public SimObjectResolver
+{
+    SimObject *resolveSimObject(const std::string &name);
+};
 
 EtherInt * lookupEthPort(SimObject *so, const std::string &name, int i);
 
@@ -53,11 +58,8 @@ serializeAll(const std::string &cpt_dir)
     Serializable::serializeAll(cpt_dir);
 }
 
-inline Checkpoint *
-getCheckpoint(const std::string &cpt_dir)
-{
-    return new Checkpoint(cpt_dir);
-}
+Checkpoint *
+getCheckpoint(const std::string &cpt_dir);
 
 inline void
 unserializeGlobals(Checkpoint *cp)