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/* Auxiliary vector support for GDB, the GNU debugger.
 
   Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
   Free Software Foundation, 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 AUXV_H
#define AUXV_H
 
#include "target.h"
 
/* See "include/elf/common.h" for the definition of valid AT_* values.  */
 
/* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
   Return 0 if *READPTR is already at the end of the buffer.
   Return -1 if there is insufficient buffer for a whole entry.
   Return 1 if an entry was read into *TYPEP and *VALP.  */
extern int target_auxv_parse (struct target_ops *ops,
			      gdb_byte **readptr, gdb_byte *endptr,
			      CORE_ADDR *typep, CORE_ADDR *valp);
 
/* Extract the auxiliary vector entry with a_type matching MATCH.
   Return zero if no such entry was found, or -1 if there was
   an error getting the information.  On success, return 1 after
   storing the entry's value field in *VALP.  */
extern int target_auxv_search (struct target_ops *ops,
			       CORE_ADDR match, CORE_ADDR *valp);
 
/* Print the contents of the target's AUXV on the specified file. */
extern int fprint_target_auxv (struct ui_file *file, struct target_ops *ops);
 
extern LONGEST memory_xfer_auxv (struct target_ops *ops,
				 enum target_object object,
				 const char *annex,
				 gdb_byte *readbuf,
				 const gdb_byte *writebuf,
				 ULONGEST offset,
				 LONGEST len);
 
 
#endif