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, 40 insertions, 0 deletions

diff --git a/src/base/statistics.cc b/src/base/statistics.cc
index 2bd34d3db..5ab837410 100644
--- a/src/base/statistics.cc
+++ b/src/base/statistics.cc
@@ -462,10 +462,32 @@ Formula::str() const
     return root ? root->str() : "";
 }
 
+Handler resetHandler = NULL;
+Handler dumpHandler = NULL;
+
+void
+registerHandlers(Handler reset_handler, Handler dump_handler)
+{
+    resetHandler = reset_handler;
+    dumpHandler = dump_handler;
+}
+
 CallbackQueue dumpQueue;
 CallbackQueue resetQueue;
 
 void
+processResetQueue()
+{
+    resetQueue.process();
+}
+
+void
+processDumpQueue()
+{
+    dumpQueue.process();
+}
+
+void
 registerResetCallback(Callback *cb)
 {
     resetQueue.add(cb);
@@ -489,6 +511,24 @@ enable()
 }
 
 void
+dump()
+{
+    if (dumpHandler)
+        dumpHandler();
+    else
+        fatal("No registered Stats::dump handler");
+}
+
+void
+reset()
+{
+    if (resetHandler)
+        resetHandler();
+    else
+        fatal("No registered Stats::reset handler");
+}
+
+void
 registerDumpCallback(Callback *cb)
 {
     dumpQueue.add(cb);