[thirdparty/glibc.git] / sysdeps / powerpc / stackinfo.h

/* 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 */
Commit	Line	Data
688903eb	1	/* Copyright (C) 1999-2018 Free Software Foundation, Inc.
8ba4e594 UD	2	This file is part of the GNU C Library.
	3
	4	The GNU C Library is free software; you can redistribute it and/or
41bdb6e2 AJ	5	modify it under the terms of the GNU Lesser General Public
	6	License as published by the Free Software Foundation; either
	7	version 2.1 of the License, or (at your option) any later version.
8ba4e594 UD	8
	9	The GNU C Library is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41bdb6e2	12	Lesser General Public License for more details.
8ba4e594	13
41bdb6e2	14	You should have received a copy of the GNU Lesser General Public
59ba27a6 PE	15	License along with the GNU C Library; if not, see
59ba27a6 PE	16	<http://www.gnu.org/licenses/>. */
8ba4e594 UD	17
	18	/* This file contains a bit of information about the stack allocation
	19	of the processor. */
	20
	21	#ifndef _STACKINFO_H
	22	#define _STACKINFO_H 1
	23
30950a5f RA	24	#include <elf.h>
30950a5f RA	25
8ba4e594 UD	26	/* On PPC the stack grows down. */
	27	#define _STACK_GROWS_DOWN 1
	28
30950a5f RA	29	#if __WORDSIZE == 64
	30	/* PPC64 doesn't need an executable stack and doesn't need PT_GNU_STACK
	31	* to make the stack nonexecutable. */
	32	# define DEFAULT_STACK_PERMS (PF_R\|PF_W)
	33	#else
	34	/* PF_X can be overridden if PT_GNU_STACK is present but is presumed absent. */
	35	# define DEFAULT_STACK_PERMS (PF_R\|PF_W\|PF_X)
	36	#endif
	37
8ba4e594	38	#endif /* stackinfo.h */