/* toplevel.c -- Top level simulator source file
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/* 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) 1999 Damjan Lampret, lampret@opencores.org
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Copyright (C) 2008 Embecosm Limited
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Copyright (C) 2008 Embecosm Limited
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Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
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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 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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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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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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Software Foundation; either version 3 of the License, or (at your option)
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any later version.
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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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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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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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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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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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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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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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/* This program is commented throughout in a fashion suitable for processing
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with Doxygen. */
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with Doxygen. */
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/* Autoconf and/or portability configuration */
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/* Autoconf and/or portability configuration */
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#include "config.h"
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#include "config.h"
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/* System includes */
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/* System includes */
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#include <stdlib.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <unistd.h>
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#include <signal.h>
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#include <signal.h>
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/* Package includes */
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/* Package includes */
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#include "sim-config.h"
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#include "sim-config.h"
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#include "toplevel-support.h"
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#include "toplevel-support.h"
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#include "execute.h"
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#include "execute.h"
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/*---------------------------------------------------------------------------*/
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/*---------------------------------------------------------------------------*/
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/*!Main function
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/*!Main function
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Set up the standalone simulation. Initialize the default configuration and
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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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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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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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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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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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The initialize the simulator, call the appropriate main simulator function
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and when it returns tidy up.
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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] argc The number of arguments to the command
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@param[in] argv The vector of argument strings
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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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@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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achieved by calling exit() with the return code, rather than
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returning an explict value. */
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returning an explict value. */
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/*---------------------------------------------------------------------------*/
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/*---------------------------------------------------------------------------*/
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int
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int
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main (int argc,
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main (int argc,
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char *argv[])
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char *argv[])
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{
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{
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srand (getpid ());
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init_randomness ();
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init_defconfig ();
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init_defconfig ();
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reg_config_secs ();
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reg_config_secs ();
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if (parse_args (argc, argv))
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if (parse_args (argc, argv))
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{
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{
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exit (-1); /* Parse args will have printed any messages */
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exit (-1); /* Parse args will have printed any messages */
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}
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}
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print_config ();
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print_config ();
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signal (SIGINT, ctrl_c);
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signal (SIGINT, ctrl_c);
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signal (SIGUSR1, toggle_trace);
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signal (SIGUSR1, toggle_trace);
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do_stats = config.cpu.superscalar ||
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do_stats = config.cpu.superscalar ||
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config.cpu.dependstats ||
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config.cpu.dependstats ||
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config.sim.history ||
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config.sim.history ||
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config.sim.exe_log ||
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config.sim.exe_log ||
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config.sim.exe_bin_insn_log;
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config.sim.exe_bin_insn_log;
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sim_init ();
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sim_init ();
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#if DYNAMIC_EXECUTION
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#if DYNAMIC_EXECUTION
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dyn_main ();
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dyn_main ();
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#else
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#else
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exec_main ();
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exec_main ();
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#endif
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#endif
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sim_done ();
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sim_done ();
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exit (0);
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exit (0);
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}
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}
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