SystemC

Introduction

Instructions are provided in the SystemC installation on how to build it for several environments:

• several UNIX flavours
• Visual C++ 7.0

As a Windows user trying to avoid dependency to tools, I wanted to try to compile it with Cygwin GCC distribution.

Details

It was tested with:

• systemc-2.2.0.tgz
• gcc 3.4.4 for Cygwin:

 gcc (GCC) 3.4.4 (cygming special, gdc 0.12, using dmd 0.125)
 Copyright (C) 2004 Free Software Foundation, Inc.
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

After going through the hassle of sorting out all the problems by myself, I found that someone else had already written a webpage on how to complete this (http://www.ht-lab.com/howto/sccygwin/sccygwin.html).

Anyway, here it goes, with my own comments about optimizing:

• add gcc, g++ and make to your cygwin installation (from cygwin setup)
• download systemc-2.2.0.tgz and untar it to a <your_dir> (be careful to use the cygwin tar and not a windows tool)
• go to <your_dir>/systemc-2.2.0
• create a subdirectory called "objdir" (<your_dir>/systemc-2.2.0/objdir)
• edit the file <your_dir>/systemc-2.2.0/src/sysc/kernel/sc_constants.h and change:

 Line 57: const int SC_DEFAULT_STACK_SIZE   = 0x10000;

to

 Line 57: const int SC_DEFAULT_STACK_SIZE   = 0x50000;

• edit the file <your_dir>/systemc-2.2.0/src/systemc.h and change:

 Line 175:       using std::wctomb;
 Line 176:       using std::mbstowcs;
 Line 177:       using std::wcstombs;

to

 Line 175:       //using std::wctomb;
 Line 176:       using std::mbstowcs;
 Line 177:       //using std::wcstombs;

• run the following command:

 ../configure --prefix=<your_installdir>

In my case, I never install SystemC globally but rather install a version for every project that requires it. Therefore, my <your_installdir> corresponds to a project and when I need it, I add TLM in the same <your_installdir>.

• finally, compile (not using pthreads as suggested by the other webpage, as it slows down by a factor 10 the simulation):

 make opt

• run the tests

 make check