ext: Include SystemC 2.3.1 into gem5

In the past it happened several times that some changes in gem5 broke the
SystemC coupling. Recently Accelera has changed the licence for SystemC
from their own licence to Apache2.0, which is compatible with gem5.
However, SystemC usually relies on the Boost library, but I was able to
exchange the boost calls by c++11 alternatives. The recent SystemC version
is placed into /ext and is integrated into gem5's build system. The goal is
to integrate some SystemC tests for the CI in some following patches.

Change-Id: I4b66ec806b5e3cffc1d7c85d3735ff4fa5b31fd0
Reviewed-on: https://gem5-review.googlesource.com/2240
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>

1 files changed, 100 insertions, 0 deletions

diff --git a/ext/systemc/src/sysc/communication/sc_interface.cpp b/ext/systemc/src/sysc/communication/sc_interface.cpp
new file mode 100644
index 000000000..eabe870e9
--- /dev/null
+++ b/ext/systemc/src/sysc/communication/sc_interface.cpp
@@ -0,0 +1,100 @@
+/*****************************************************************************
+
+  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
+  more contributor license agreements.  See the NOTICE file distributed
+  with this work for additional information regarding copyright ownership.
+  Accellera licenses this file to you under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with the
+  License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+  implied.  See the License for the specific language governing
+  permissions and limitations under the License.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  sc_interface.cpp -- Abstract base class of all interface classes.
+
+  Original Author: Martin Janssen, Synopsys, Inc., 2001-05-21
+
+  CHANGE LOG IS AT THE END OF THE FILE
+ *****************************************************************************/
+
+#include "sysc/communication/sc_interface.h"
+#include "sysc/communication/sc_communication_ids.h"
+#include "sysc/kernel/sc_event.h"
+
+
+namespace sc_core {
+
+// ----------------------------------------------------------------------------
+//  CLASS : sc_interface
+//
+//  Abstract base class of all interface classes.
+//  BEWARE: Direct inheritance from this class must be done virtual.
+// ----------------------------------------------------------------------------
+
+// register a port with this interface (does nothing by default)
+
+void
+sc_interface::register_port( sc_port_base&, const char* )
+{}
+
+
+// get the default event
+
+const sc_event&
+sc_interface::default_event() const
+{
+    SC_REPORT_WARNING( SC_ID_NO_DEFAULT_EVENT_, 0 );
+    return m_never_notified;
+}
+
+
+// destructor (does nothing)
+
+sc_interface::~sc_interface()
+{}
+
+
+// constructor (does nothing)
+
+sc_interface::sc_interface()
+{}
+
+
+// special event for never notified cases, note the special name to keep
+// it out of the named event structures.
+
+sc_event sc_interface::m_never_notified(SC_KERNEL_EVENT_PREFIX);
+
+} // namespace sc_core
+
+// $Log: sc_interface.cpp,v $
+// Revision 1.5  2011/08/26 20:45:40  acg
+//  Andy Goodrich: moved the modification log to the end of the file to
+//  eliminate source line number skew when check-ins are done.
+//
+// Revision 1.4  2011/03/12 21:07:42  acg
+//  Andy Goodrich: changes to kernel generated event support.
+//
+// Revision 1.3  2011/03/06 15:55:08  acg
+//  Andy Goodrich: Changes for named events.
+//
+// Revision 1.2  2011/02/18 20:23:45  acg
+//  Andy Goodrich: Copyright update.
+//
+// Revision 1.1.1.1  2006/12/15 20:20:04  acg
+// SystemC 2.3
+//
+// Revision 1.3  2006/01/13 18:47:42  acg
+// Added $Log command so that CVS comments are reproduced in the source.
+//
+
+// Taf!