opcodes/arc-ext.h

/* ARC target-dependent stuff.  Extension data structures.
   Copyright (C) 1995-2015 Free Software Foundation, Inc.

   This file is part of libopcodes.

   This library 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, or (at your option)
   any later version.

   It 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, write to the Free Software
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */

/*This header file defines a table of extensions to the ARC processor
  architecture.  These extensions are read from the '.arcextmap' or
  '.gnu.linkonce.arcextmap.<type>.<N>' sections in the ELF file which
  is identified by the bfd parameter to the build_ARC_extmap function.

  These extensions may include:
	 core registers
	 auxiliary registers
	 instructions
	 condition codes

  Once the table has been constructed, accessor functions may be used
  to retrieve information from it.

  The build_ARC_extmap constructor function build_ARC_extmap may be
  called as many times as required; it will re-initialize the table
  each time.  */

#ifndef ARC_EXTENSIONS_H
#define ARC_EXTENSIONS_H

#define IGNORE_FIRST_OPD 1

/* Define this if we do not want to encode instructions based on the
   ARCompact Programmer's Reference.  */
#define UNMANGLED


/* This defines the kinds of extensions which may be read from the
   ections in the executable files.  */
enum ExtOperType
{
  EXT_INSTRUCTION	     = 0,
  EXT_CORE_REGISTER	     = 1,
  EXT_AUX_REGISTER	     = 2,
  EXT_COND_CODE		     = 3,
  EXT_INSTRUCTION32	     = 4,
  EXT_AC_INSTRUCTION	     = 4,
  EXT_REMOVE_CORE_REG	     = 5,
  EXT_LONG_CORE_REGISTER     = 6,
  EXT_AUX_REGISTER_EXTENDED  = 7,
  EXT_INSTRUCTION32_EXTENDED = 8,
  EXT_CORE_REGISTER_CLASS    = 9
};


enum ExtReadWrite
{
  REG_INVALID,
  REG_READ,
  REG_WRITE,
  REG_READWRITE
};


/* Constructor function.  */
extern void build_ARC_extmap (bfd *);

/* Accessor functions.  */
extern enum ExtReadWrite arcExtMap_coreReadWrite (int);
extern const char * arcExtMap_coreRegName (int);
extern const char * arcExtMap_auxRegName (long);
extern const char * arcExtMap_condCodeName (int);
extern const char * arcExtMap_instName (int, int, int *);

/* Dump function (for debugging).  */
extern void dump_ARC_extmap (void);

#endif /* ARC_EXTENSIONS_H */