/* Copyright (C) 1999-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

/* This file contains a bit of information about the stack allocation

   of the processor.  */

#ifndef _STACKINFO_H

#define _STACKINFO_H	1

#include <elf.h>

/* On PPC the stack grows down.  */

#define _STACK_GROWS_DOWN	1

#if __WORDSIZE == 64

/* PPC64 doesn't need an executable stack and doesn't need PT_GNU_STACK

 * to make the stack nonexecutable.  */

# define DEFAULT_STACK_PERMS (PF_R|PF_W)

#else

/* PF_X can be overridden if PT_GNU_STACK is present but is presumed absent.  */

# define DEFAULT_STACK_PERMS (PF_R|PF_W|PF_X)

#endif

#endif	/* stackinfo.h */