/* Header for GDB Simulator wrapper for Or1ksim
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/* Header for GDB Simulator wrapper for Or1ksim
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Copyright 1988-2008, Free Software Foundation, Inc.
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Copyright 1988-2008, Free Software Foundation, Inc.
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Copyright (C) 2010 Embecosm Limited
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Copyright (C) 2010 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 GDB.
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This file is part of GDB.
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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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/*---------------------------------------------------------------------------*/
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/*---------------------------------------------------------------------------*/
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/* This is a wrapper for Or1ksim, suitable for use as a GDB simulator.
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/* This is a wrapper for Or1ksim, suitable for use as a GDB simulator.
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The code tries to follow the GDB coding style.
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The code tries to follow the GDB coding style.
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Commenting is Doxygen compatible. */
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Commenting is Doxygen compatible. */
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/*---------------------------------------------------------------------------*/
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/*---------------------------------------------------------------------------*/
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/*! GDB signal indiating breakpoint hit */
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/*! GDB signal indiating breakpoint hit */
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#define TARGET_SIGNAL_TRAP 5
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#define TARGET_SIGNAL_TRAP 5
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/*! Number of registers */
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/*! Number of registers */
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#define OR32_MAX_GPRS 32
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#define OR32_MAX_GPRS 32
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/* Particular registers */
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/* Particular registers */
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#define OR32_FIRST_ARG_REGNUM 3 /*!< First arg reg */
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#define OR32_FIRST_ARG_REGNUM 3 /*!< First arg reg */
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#define OR32_PPC_REGNUM (OR32_MAX_GPRS + 0) /*!< Previous PC */
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#define OR32_PPC_REGNUM (OR32_MAX_GPRS + 0) /*!< Previous PC */
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#define OR32_NPC_REGNUM (OR32_MAX_GPRS + 1) /*!< Next PC */
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#define OR32_NPC_REGNUM (OR32_MAX_GPRS + 1) /*!< Next PC */
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#define OR32_SR_REGNUM (OR32_MAX_GPRS + 2) /*!< Supervision Reg */
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#define OR32_SR_REGNUM (OR32_MAX_GPRS + 2) /*!< Supervision Reg */
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/* ------------------------------------------------------------------------- */
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/* ------------------------------------------------------------------------- */
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/*!A structure to hold the state of a simulation instance.
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/*!A structure to hold the state of a simulation instance.
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This is the typedef SIM_DESC.
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This is the typedef SIM_DESC.
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The entries are
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The entries are
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- the socket descriptor for reading/writing from/to the model process
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- the socket descriptor for reading/writing from/to the model process
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- a flag which is true if we are used for debug rather than standalone
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- a flag which is true if we are used for debug rather than standalone
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- the callback function supplied to the sim_open () function
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- the callback function supplied to the sim_open () function
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- this simulator's name (argv[0] supplied to sim_open ()
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- this simulator's name (argv[0] supplied to sim_open ()
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- the PID of the child process running the model (0 if we are the child) */
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- the PID of the child process running the model (0 if we are the child) */
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/* ------------------------------------------------------------------------- */
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/* ------------------------------------------------------------------------- */
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struct sim_state
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struct sim_state
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{
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{
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int sockd;
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int sockd;
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int is_debug;
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int is_debug;
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struct host_callback_struct *callback;
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struct host_callback_struct *callback;
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char *myname;
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char *myname;
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int pid;
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int pid;
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};
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};
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