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[binutils.git] / gdb / sim-regno.h

/* Generic remote debugging interface for simulators.

   Copyright (C) 2002, 2007, 2008, 2009, 2010, 2011
   Free Software Foundation, Inc.

   Contributed by Red Hat, Inc.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#ifndef SIM_REGNO_H
#define SIM_REGNO_H

/* The gdbarch_register_sim_regno (REGNUM) method, when there is a
   corresponding simulator register, returns that register number as a
   cardinal.  When there is no corresponding register, it returns a
   negative value.  */

enum sim_regno {
  /* Normal sane architecture.  The simulator is known to not model
     this register.  */
  SIM_REGNO_DOES_NOT_EXIST = -1,
  /* For possible backward compatibility.  The register cache doesn't
     have a corresponding name.  Skip the register entirely.  */
  LEGACY_SIM_REGNO_IGNORE = -2
};

/* Treat all raw registers as valid.  */

extern int one2one_register_sim_regno (struct gdbarch *gdbarch, int regnum);

#endif