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[/] [openrisc/] [trunk/] [or1ksim/] [toplevel.c] - Blame information for rev 581

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1 19 jeremybenn
/* toplevel.c -- Top level simulator source file
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   Copyright (C) 1999 Damjan Lampret, lampret@opencores.org
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   Copyright (C) 2008 Embecosm Limited
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   Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
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   This file is part of Or1ksim, the OpenRISC 1000 Architectural Simulator.
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   This program is free software; you can redistribute it and/or modify it
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   under the terms of the GNU General Public License as published by the Free
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   Software Foundation; either version 3 of the License, or (at your option)
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   any later version.
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   This program is distributed in the hope that it will be useful, but WITHOUT
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   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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   more details.
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   You should have received a copy of the GNU General Public License along
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   with this program.  If not, see <http://www.gnu.org/licenses/>.  */
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/* This program is commented throughout in a fashion suitable for processing
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   with Doxygen. */
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/* Autoconf and/or portability configuration */
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#include "config.h"
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/* System includes */
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#include <stdlib.h>
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#include <unistd.h>
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#include <signal.h>
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/* Package includes */
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#include "sim-config.h"
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#include "toplevel-support.h"
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#include "execute.h"
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/*---------------------------------------------------------------------------*/
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/*!Main function
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   Set up the standalone simulation. Initialize the default configuration and
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   register all the sections that may appear in a user configuration.
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   Then attempt to parse the args, configure the system from any configuration
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   file specified and print out the configuration used.
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   Add a signal hander, so ctrl-C will drop the user into the CLI.
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   The initialize the simulator, call the appropriate main simulator function
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   and when it returns tidy up.
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   @param[in] argc  The number of arguments to the command
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   @param[in] argv  The vector of argument strings
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   @return  The return code required from the simulator. This is actually
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            achieved by calling exit() with the return code, rather than
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            returning an explict value.                                      */
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/*---------------------------------------------------------------------------*/
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int
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main (int   argc,
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      char *argv[])
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{
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  init_randomness ();
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  init_defconfig ();
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  reg_config_secs ();
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  if (parse_args (argc, argv))
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    {
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      exit (-1);                /* Parse args will have printed any messages */
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    }
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  print_config ();
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  signal (SIGINT, ctrl_c);
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  signal (SIGUSR1, toggle_trace);
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  do_stats         = config.cpu.superscalar ||
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                     config.cpu.dependstats ||
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                     config.sim.history     ||
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                     config.sim.exe_log     ||
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                     config.sim.exe_bin_insn_log;
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  sim_init ();
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#if DYNAMIC_EXECUTION
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  dyn_main ();
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#else
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  exec_main ();
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#endif
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  sim_done ();
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  exit (0);
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}

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