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, 308 insertions, 0 deletions

diff --git a/ext/systemc/src/sysc/datatypes/fx/sc_fxdefs.h b/ext/systemc/src/sysc/datatypes/fx/sc_fxdefs.h
new file mode 100644
index 000000000..1ac1bb707
--- /dev/null
+++ b/ext/systemc/src/sysc/datatypes/fx/sc_fxdefs.h
@@ -0,0 +1,308 @@
+/*****************************************************************************
+
+  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_fxdefs.h - 
+
+  Original Author: Martin Janssen, Synopsys, Inc.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
+  changes you are making here.
+
+      Name, Affiliation, Date:
+  Description of Modification:
+
+ *****************************************************************************/
+
+// $Log: sc_fxdefs.h,v $
+// Revision 1.1.1.1  2006/12/15 20:20:04  acg
+// SystemC 2.3
+//
+// Revision 1.3  2006/01/13 18:53:57  acg
+// Andy Goodrich: added $Log command so that CVS comments are reproduced in
+// the source.
+//
+
+#ifndef SC_FXDEFS_H
+#define SC_FXDEFS_H
+
+
+#include "sysc/utils/sc_machine.h"
+#include "sysc/datatypes/fx/sc_fx_ids.h"
+#include "sysc/datatypes/int/sc_nbutils.h"
+
+
+namespace sc_dt
+{
+
+// ----------------------------------------------------------------------------
+//  ENUM : sc_enc
+//
+//  Enumeration of sign encodings.
+// ----------------------------------------------------------------------------
+
+enum sc_enc
+{
+    SC_TC_,	// two's complement
+    SC_US_	// unsigned
+};
+
+
+const std::string to_string( sc_enc );
+
+
+inline
+::std::ostream&
+operator << ( ::std::ostream& os, sc_enc enc )
+{
+    return os << to_string( enc );
+}
+
+
+// ----------------------------------------------------------------------------
+//  ENUM : sc_q_mode
+//
+//  Enumeration of quantization modes.
+// ----------------------------------------------------------------------------
+
+enum sc_q_mode
+{
+    SC_RND,		// rounding to plus infinity
+    SC_RND_ZERO,	// rounding to zero
+    SC_RND_MIN_INF,	// rounding to minus infinity
+    SC_RND_INF,		// rounding to infinity
+    SC_RND_CONV,	// convergent rounding
+    SC_TRN,		// truncation
+    SC_TRN_ZERO		// truncation to zero
+};
+
+
+const std::string to_string( sc_q_mode );
+
+
+inline
+::std::ostream&
+operator << ( ::std::ostream& os, sc_q_mode q_mode )
+{
+    return os << to_string( q_mode );
+}
+
+
+// ----------------------------------------------------------------------------
+//  ENUM : sc_o_mode
+//
+//  Enumeration of overflow modes.
+// ----------------------------------------------------------------------------
+
+enum sc_o_mode
+{
+    SC_SAT,		// saturation
+    SC_SAT_ZERO,	// saturation to zero
+    SC_SAT_SYM,		// symmetrical saturation
+    SC_WRAP,		// wrap-around (*)
+    SC_WRAP_SM		// sign magnitude wrap-around (*)
+};
+
+// (*) uses the number of saturated bits argument, see the documentation.
+
+
+const std::string to_string( sc_o_mode );
+
+
+inline
+::std::ostream&
+operator << ( ::std::ostream& os, sc_o_mode o_mode )
+{
+    return os << to_string( o_mode );
+}
+
+
+// ----------------------------------------------------------------------------
+//  ENUM : sc_switch
+//
+//  Enumeration of switch states.
+// ----------------------------------------------------------------------------
+
+enum sc_switch
+{
+    SC_OFF,
+    SC_ON
+};
+
+
+const std::string to_string( sc_switch );
+
+
+inline
+::std::ostream&
+operator << ( ::std::ostream& os, sc_switch sw )
+{
+    return os << to_string( sw );
+}
+
+
+// ----------------------------------------------------------------------------
+//  ENUM : sc_fmt
+//
+//  Enumeration of formats for character string conversion.
+// ----------------------------------------------------------------------------
+
+enum sc_fmt
+{
+    SC_F,	// fixed
+    SC_E	// scientific
+};
+
+
+const std::string to_string( sc_fmt );
+
+
+inline
+::std::ostream&
+operator << ( ::std::ostream& os, sc_fmt fmt )
+{
+    return os << to_string( fmt );
+}
+
+
+// ----------------------------------------------------------------------------
+//  Built-in & default fixed-point type parameter values.
+// ----------------------------------------------------------------------------
+
+const int       SC_BUILTIN_WL_     = 32;
+const int       SC_BUILTIN_IWL_    = 32;
+const sc_q_mode SC_BUILTIN_Q_MODE_ = SC_TRN;
+const sc_o_mode SC_BUILTIN_O_MODE_ = SC_WRAP;
+const int       SC_BUILTIN_N_BITS_ = 0;
+
+
+const int       SC_DEFAULT_WL_     = SC_BUILTIN_WL_;
+const int       SC_DEFAULT_IWL_    = SC_BUILTIN_IWL_;
+const sc_q_mode SC_DEFAULT_Q_MODE_ = SC_BUILTIN_Q_MODE_;
+const sc_o_mode SC_DEFAULT_O_MODE_ = SC_BUILTIN_O_MODE_;
+const int       SC_DEFAULT_N_BITS_ = SC_BUILTIN_N_BITS_;
+
+
+// ----------------------------------------------------------------------------
+//  Built-in & default fixed-point cast switch parameter values.
+// ----------------------------------------------------------------------------
+
+const sc_switch SC_BUILTIN_CAST_SWITCH_ = SC_ON;
+
+
+const sc_switch SC_DEFAULT_CAST_SWITCH_ = SC_BUILTIN_CAST_SWITCH_;
+
+
+// ----------------------------------------------------------------------------
+//  Built-in & default fixed-point value type parameter values.
+// ----------------------------------------------------------------------------
+
+const int SC_BUILTIN_DIV_WL_ = 64;
+const int SC_BUILTIN_CTE_WL_ = 64;
+const int SC_BUILTIN_MAX_WL_ = 1024;
+
+
+#if defined( SC_FXDIV_WL ) && ( SC_FXDIV_WL > 0 )
+const int SC_DEFAULT_DIV_WL_ = SC_FXDIV_WL;
+#else
+const int SC_DEFAULT_DIV_WL_ = SC_BUILTIN_DIV_WL_;
+#endif
+
+#if defined( SC_FXCTE_WL ) && ( SC_FXCTE_WL > 0 )
+const int SC_DEFAULT_CTE_WL_ = SC_FXCTE_WL;
+#else
+const int SC_DEFAULT_CTE_WL_ = SC_BUILTIN_CTE_WL_;
+#endif
+
+#if defined( SC_FXMAX_WL ) && ( SC_FXMAX_WL > 0 || SC_FXMAX_WL == -1 )
+const int SC_DEFAULT_MAX_WL_ = SC_FXMAX_WL;
+#else
+const int SC_DEFAULT_MAX_WL_ = SC_BUILTIN_MAX_WL_;
+#endif
+
+
+// ----------------------------------------------------------------------------
+//  Dedicated error reporting and checking.
+// ----------------------------------------------------------------------------
+
+#ifdef DEBUG_SYSTEMC
+#define SC_ASSERT_(cnd,msg)                                                   \
+{                                                                             \
+    if( ! (cnd) )                                                             \
+        SC_REPORT_ERROR( sc_core::SC_ID_INTERNAL_ERROR_, msg );                        \
+}
+#else
+#define SC_ASSERT_(cnd,msg)
+#endif
+
+#define SC_ERROR_IF_(cnd,id)                                                  \
+{                                                                             \
+    if( cnd )                                                                 \
+        SC_REPORT_ERROR( id, 0 );                                             \
+}
+
+
+#define SC_CHECK_WL_(wl)                                                      \
+    SC_ERROR_IF_( (wl) <= 0, sc_core::SC_ID_INVALID_WL_ )
+
+#define SC_CHECK_N_BITS_(n_bits)                                              \
+    SC_ERROR_IF_( (n_bits) < 0, sc_core::SC_ID_INVALID_N_BITS_ )
+
+#define SC_CHECK_DIV_WL_(div_wl)                                              \
+    SC_ERROR_IF_( (div_wl) <= 0, sc_core::SC_ID_INVALID_DIV_WL_ )
+
+#define SC_CHECK_CTE_WL_(cte_wl)                                              \
+    SC_ERROR_IF_( (cte_wl) <= 0, sc_core::SC_ID_INVALID_CTE_WL_ )
+
+#define SC_CHECK_MAX_WL_(max_wl)                                              \
+    SC_ERROR_IF_( (max_wl) <= 0 && (max_wl) != -1,                            \
+	    sc_core::SC_ID_INVALID_MAX_WL_ )
+
+
+// ----------------------------------------------------------------------------
+//  Generic observer macros.
+// ----------------------------------------------------------------------------
+
+#define SC_OBSERVER_(object,observer_type,event)                              \
+{                                                                             \
+    if( (object).observer() != 0 )                                            \
+    {                                                                         \
+	observer_type observer = (object).lock_observer();                    \
+	observer->event( (object) );                                          \
+	(object).unlock_observer( observer );                                 \
+    }                                                                         \
+}
+
+#define SC_OBSERVER_DEFAULT_(observer_type)                                   \
+{                                                                             \
+    if( m_observer == 0 && observer_type ## ::default_observer != 0 )         \
+        m_observer = (* ## observer_type ## ::default_observer)();            \
+}
+
+} // namespace sc_dt
+
+
+#endif
+
+// Taf!