/* RTL buffer overflow protection function for GNU C compiler
   Copyright (C) 1987, 88, 89, 92-7, 1998 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC 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 2, or (at your option)
any later version.

GNU CC 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 GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */


/* declaration of GUARD variable */
#define GUARD_m		Pmode
#define UNITS_PER_GUARD MAX(BIGGEST_ALIGNMENT / BITS_PER_UNIT, GET_MODE_SIZE (GUARD_m))

#ifndef L_stack_smash_handler

/* insert a guard variable before a character buffer and change the order
 of pointer variables, character buffers and pointer arguments */

extern void prepare_stack_protection  PARAMS ((int inlinable));

#ifdef TREE_CODE
/* search a character array from the specified type tree */

extern int search_string_def PARAMS ((tree names));
#endif

/* examine whether the input contains frame pointer addressing */

extern int contains_fp PARAMS ((rtx op));

/* allocate a local variable in the stack area before character buffers
   to avoid the corruption of it */

extern rtx assign_stack_local_for_pseudo_reg PARAMS ((enum machine_mode, HOST_WIDE_INT, int));

#endif