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, 348 insertions, 0 deletions

diff --git a/ext/systemc/src/systemc.h b/ext/systemc/src/systemc.h
new file mode 100644
index 000000000..ccc1285eb
--- /dev/null
+++ b/ext/systemc/src/systemc.h
@@ -0,0 +1,348 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  systemc.h - Top-level include file for the SystemC library with usings.
+
+  Original Author: Stan Y. Liao, Synopsys, Inc.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
+  changes you are making here.
+
+      Name, Affiliation, Date: Andy Goodrich, Forte Design Systems, 31 Mar 2005
+  Description of Modification: Changes for namespace support.
+
+ *****************************************************************************/
+
+#ifndef SYSTEMC_H
+#define SYSTEMC_H
+
+// INCLUDE SYSTEM (std) DEFINITIONS:
+
+#include <cassert>
+#include <climits>
+#include <cmath> // math.h?
+#include <cstddef>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <exception>
+#include <fstream>
+#include <iostream>
+#include <memory>
+#include <string>
+#if defined(__sun) || defined(__sun__)
+#   include <inttypes.h>
+#elif !defined(WIN32) && !defined(_WIN32)
+#   include <stdint.h>
+#endif
+#include <typeinfo>
+#include <utility>
+#include <vector>
+
+// USINGS FOR I/O STREAM SUPPORT:
+
+    using std::ios;
+    using std::streambuf;
+    using std::streampos;
+    using std::streamsize;
+    using std::iostream;
+    using std::istream;
+    using std::ostream;
+    using std::cin;
+    using std::cout;
+    using std::cerr;
+    using std::endl;
+    using std::flush;
+    using std::dec;
+    using std::hex;
+    using std::oct;
+    using std::noshowbase;
+    using std::showbase;
+
+    using std::fstream;
+    using std::ifstream;
+    using std::ofstream;
+
+//  from <cstdio>:
+
+    using std::size_t;
+    using std::FILE;
+    using std::fpos_t;
+    using std::fclose;
+    using std::clearerr;
+
+    using std::remove;
+    using std::rename;
+    using std::tmpfile;
+    using std::tmpnam;
+    using std::fflush;
+    using std::fopen;
+    using std::freopen;
+    using std::setbuf;
+    using std::setvbuf;
+    using std::fprintf;
+    using std::fscanf;
+    using std::printf;
+    using std::scanf;
+    using std::sprintf;
+    using std::sscanf;
+    using std::vfprintf;
+    using std::vprintf;
+    using std::vsprintf;
+    using std::fgetc;
+    using std::fgets;
+    using std::fputc;
+    using std::fputs;
+    using std::getc;
+    using std::getchar;
+    using std::gets;
+    using std::putc;
+    using std::putchar;
+    using std::puts;
+    using std::ungetc;
+    using std::fread;
+    using std::fwrite;
+    using std::fgetpos;
+    using std::fseek;
+    using std::fsetpos;
+    using std::ftell;
+    using std::rewind;
+    using std::feof;
+    using std::ferror;
+    using std::perror;
+
+//  from <cstdlib>:
+
+    using std::div_t;
+    using std::ldiv_t;
+
+    using std::atof;
+    using std::atoi;
+    using std::atol;
+    using std::strtod;
+    using std::strtol;
+    using std::strtoul;
+    using std::rand;
+    using std::srand;
+    using std::calloc;
+    using std::free;
+    using std::malloc;
+    using std::realloc;
+    using std::abort;
+    using std::atexit;
+    using std::exit;
+    using std::getenv;
+    using std::system;
+    using std::bsearch;
+    using std::qsort;
+    using std::abs;
+    using std::div;
+    using std::labs;
+    using std::ldiv;
+    using std::mblen;
+    using std::mbtowc;
+    using std::mbstowcs;
+#if !defined(__CYGWIN__) && !defined(__CYGWIN32)
+    using std::wctomb;
+    using std::wcstombs;
+#endif
+
+//  from <cstring>:
+
+    using std::memcpy;
+    using std::memmove;
+    using std::strcpy;
+    using std::strncpy;
+    using std::strcat;
+    using std::strncat;
+    using std::memcmp;
+    using std::strcmp;
+    using std::strcoll;
+    using std::strncmp;
+    using std::strxfrm;
+    using std::memchr;
+    using std::strchr;
+    using std::strcspn;
+    using std::strpbrk;
+    using std::strrchr;
+    using std::strspn;
+    using std::strstr;
+    using std::strtok;
+    using std::memset;
+    using std::strerror;
+    using std::strlen;
+
+// deprecated strstream support
+#if defined( SC_INCLUDE_STRSTREAM )
+#include <strstream>
+
+    using std::strstream;
+    using std::strstreambuf;
+    using std::istrstream;
+    using std::ostrstream;
+
+#endif // SC_INCLUDE_STRSTREAM
+
+// INCLUDE SYSTEMC DEFINITIONS for sc_dt AND sc_core NAMESPACES:
+
+#include "systemc"
+
+// USINGS FOR THE sc_dt NAMESPACE:
+
+using sc_dt::SC_BIN;
+using sc_dt::SC_BIN_SM;
+using sc_dt::SC_BIN_US;
+using sc_dt::SC_CSD;
+using sc_dt::SC_DEC;
+using sc_dt::SC_HEX;
+using sc_dt::SC_HEX_SM;
+using sc_dt::SC_HEX_US;
+using sc_dt::SC_LOGIC_0;
+using sc_dt::SC_LOGIC_1;
+using sc_dt::SC_LOGIC_X;
+using sc_dt::SC_LOGIC_Z;
+using sc_dt::SC_NOBASE;
+using sc_dt::SC_OCT;
+using sc_dt::SC_OCT_SM;
+using sc_dt::SC_OCT_US;
+using sc_dt::int64;
+using sc_dt::sc_abs;
+using sc_dt::sc_bigint;
+using sc_dt::sc_biguint;
+using sc_dt::sc_bit;
+using sc_dt::sc_bv;
+using sc_dt::sc_bv_base;
+using sc_dt::sc_digit;
+using sc_dt::sc_int;
+using sc_dt::sc_int_base;
+using sc_dt::sc_io_show_base;
+using sc_dt::sc_length_context;
+using sc_dt::sc_length_param;
+using sc_dt::sc_logic;
+using sc_dt::sc_lv;
+using sc_dt::sc_lv_base;
+using sc_dt::sc_max;
+using sc_dt::sc_min;
+using sc_dt::sc_numrep;
+using sc_dt::sc_signed;
+using sc_dt::sc_uint;
+using sc_dt::sc_uint_base;
+using sc_dt::sc_unsigned;
+using sc_dt::uint64;
+// #ifdef SC_DT_DEPRECATED
+using sc_dt::sc_logic_0;
+using sc_dt::sc_logic_1;
+using sc_dt::sc_logic_Z;
+using sc_dt::sc_logic_X;
+// #endif
+
+#ifdef SC_INCLUDE_FX
+    using sc_dt::sc_fxnum;
+    using sc_dt::sc_fxnum_bitref;
+    using sc_dt::sc_fxnum_fast;
+    using sc_dt::sc_fix;
+    using sc_dt::sc_fix_fast;
+    using sc_dt::sc_ufix;
+    using sc_dt::sc_ufix_fast;
+    using sc_dt::sc_fixed;
+    using sc_dt::sc_fixed_fast;
+    using sc_dt::sc_ufixed;
+    using sc_dt::sc_ufixed_fast;
+    using sc_dt::sc_fxval;
+    using sc_dt::sc_fxval_fast;
+    using sc_dt::sc_fxcast_switch;
+    using sc_dt::sc_fxcast_context;
+    using sc_dt::sc_fxtype_params;
+    using sc_dt::sc_fxtype_context;
+    using sc_dt::sc_q_mode;
+    using sc_dt::SC_RND;
+    using sc_dt::SC_RND_ZERO;
+    using sc_dt::SC_RND_MIN_INF;
+    using sc_dt::SC_RND_INF;
+    using sc_dt::SC_RND_CONV;
+    using sc_dt::SC_TRN;
+    using sc_dt::SC_TRN_ZERO;
+    using sc_dt::sc_o_mode;
+    using sc_dt::SC_SAT;
+    using sc_dt::SC_SAT_ZERO;
+    using sc_dt::SC_SAT_SYM;
+    using sc_dt::SC_WRAP;
+    using sc_dt::SC_WRAP_SM;
+    using sc_dt::sc_switch;
+    using sc_dt::SC_OFF;
+    using sc_dt::SC_ON;
+    using sc_dt::sc_fmt;
+    using sc_dt::SC_F;
+    using sc_dt::SC_E;
+    using sc_dt::sc_context_begin;
+    using sc_dt::SC_NOW;
+    using sc_dt::SC_LATER;
+#endif // SC_INCLUDE_FX
+
+#if 0 // defined( _MSC_VER ) // supported versions of MSVC should support ADL
+
+    using sc_dt::equal;
+    using sc_dt::not_equal;
+    using sc_dt::b_not;
+    using sc_dt::b_and;
+    using sc_dt::b_or;
+    using sc_dt::b_xor;
+    using sc_dt::lrotate;
+    using sc_dt::rrotate;
+    using sc_dt::reverse;
+    using sc_dt::concat;
+    using sc_dt::and_reduce;
+    using sc_dt::or_reduce;
+    using sc_dt::xor_reduce;
+    using sc_dt::nand_reduce;
+    using sc_dt::nor_reduce;
+    using sc_dt::xnor_reduce;
+
+#endif // defined( _MSC_VER )
+
+
+// USINGS FOR sc_core:
+//
+// The explicit using for ::sc_core::wait is to remove an ambiguity with
+// the constructor for the system's union wait on Unix and Linux. This
+// causes problems with aCC, so users of aCC should explicitly select
+// the SystemC wait functions using ::sc_core::wait(...). This is actually
+// a good idea for SystemC programmers in general.
+
+using namespace sc_core;
+
+#if !defined( __HP_aCC )
+    using ::sc_core::wait;
+#endif // !defined( __HP_aCC )
+
+#ifdef SC_USE_SC_STRING_OLD
+	using   sc_dt::sc_string_old;
+	typedef sc_dt::sc_string_old sc_string;
+#endif
+#ifdef SC_USE_STD_STRING
+	typedef ::std::string sc_string;
+#endif
+
+#endif