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, 191 insertions, 0 deletions

diff --git a/ext/systemc/src/sysc/kernel/sc_attribute.cpp b/ext/systemc/src/sysc/kernel/sc_attribute.cpp
new file mode 100644
index 000000000..de89c6adf
--- /dev/null
+++ b/ext/systemc/src/sysc/kernel/sc_attribute.cpp
@@ -0,0 +1,191 @@
+/*****************************************************************************
+
+  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_attribute.cpp -- Attribute classes.
+
+  Original Author: Martin Janssen, Synopsys, Inc., 2001-05-21
+
+ CHANGE LOG APPEARS AT THE END OF THE FILE
+ *****************************************************************************/
+
+#include "sysc/kernel/sc_attribute.h"
+
+namespace sc_core {
+
+// ----------------------------------------------------------------------------
+//  CLASS : sc_attr_base
+//
+//  Attribute base class.
+// ----------------------------------------------------------------------------
+
+// constructors
+
+sc_attr_base::sc_attr_base( const std::string& name_ )
+: m_name( name_ )
+{}
+
+sc_attr_base::sc_attr_base( const sc_attr_base& a )
+: m_name( a.m_name )
+{}
+
+
+// destructor (does nothing)
+
+sc_attr_base::~sc_attr_base()
+{}
+
+
+// get the name
+const std::string&
+sc_attr_base::name() const
+{
+    return m_name;
+}
+
+
+// ----------------------------------------------------------------------------
+//  CLASS : sc_attr_cltn
+//
+//  Attribute collection class. Stores pointers to attributes.
+//  Note: iterate over the collection by using iterators.
+// ----------------------------------------------------------------------------
+
+// constructors
+
+sc_attr_cltn::sc_attr_cltn() : m_cltn()
+{}
+
+sc_attr_cltn::sc_attr_cltn( const sc_attr_cltn& a )
+: m_cltn( a.m_cltn )
+{}
+
+
+// destructor
+sc_attr_cltn::~sc_attr_cltn()
+{
+    remove_all();
+}
+
+
+// add attribute to the collection.
+// returns 'true' if the name of the attribute is unique,
+// returns 'false' otherwise (attribute is not added).
+
+bool
+sc_attr_cltn::push_back( sc_attr_base* attribute_ )
+{
+    if( attribute_ == 0 ) {
+	return false;
+    }
+    for( int i = m_cltn.size() - 1; i >= 0; -- i ) {
+	if( attribute_->name() == m_cltn[i]->name() ) {
+	    return false;
+	}
+    }
+    m_cltn.push_back( attribute_ );
+    return true;
+}
+
+
+// get attribute by name.
+// returns pointer to attribute, or 0 if name does not exist.
+
+sc_attr_base*
+sc_attr_cltn::operator [] ( const std::string& name_ )
+{
+    for( int i = m_cltn.size() - 1; i >= 0; -- i ) {
+	if( name_ == m_cltn[i]->name() ) {
+	    return m_cltn[i];
+	}
+    }
+    return 0;
+}
+
+const sc_attr_base*
+sc_attr_cltn::operator [] ( const std::string& name_ ) const
+{
+    for( int i = m_cltn.size() - 1; i >= 0; -- i ) {
+	if( name_ == m_cltn[i]->name() ) {
+	    return m_cltn[i];
+	}
+    }
+    return 0;
+}
+
+
+// remove attribute by name.
+// returns pointer to attribute, or 0 if name does not exist.
+
+sc_attr_base*
+sc_attr_cltn::remove( const std::string& name_ )
+{
+    for( int i = m_cltn.size() - 1; i >= 0; -- i ) {
+	if( name_ == m_cltn[i]->name() ) {
+	    sc_attr_base* attribute = m_cltn[i];
+	    std::swap( m_cltn[i], m_cltn.back() );
+	    m_cltn.pop_back();
+	    return attribute;
+	}
+    }
+    return 0;
+}
+
+
+// remove all attributes
+
+void
+sc_attr_cltn::remove_all()
+{
+    m_cltn.clear();
+}
+
+} // namespace sc_core
+
+// $Log: sc_attribute.cpp,v $
+// Revision 1.7  2011/08/26 20:46:08  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 1.6  2011/08/24 22:05:50  acg
+//  Torsten Maehne: initialization changes to remove warnings.
+//
+// Revision 1.5  2011/02/18 20:27:14  acg
+//  Andy Goodrich: Updated Copyrights.
+//
+// Revision 1.4  2011/02/13 21:47:37  acg
+//  Andy Goodrich: update copyright notice.
+//
+// Revision 1.3  2010/07/22 20:02:33  acg
+//  Andy Goodrich: bug fixes.
+//
+// Revision 1.2  2008/05/22 17:06:24  acg
+//  Andy Goodrich: updated copyright notice to include 2008.
+//
+// Revision 1.1.1.1  2006/12/15 20:20:05  acg
+// SystemC 2.3
+//
+// Revision 1.4  2006/01/16 22:27:08  acg
+// Test of $Log comment.
+//
+// Revision 1.3  2006/01/13 18:44:29  acg
+// Added $Log to record CVS changes into the source.
+
+// Taf!