/* Copyright (C) 1997-2018 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/>.  */

/* Define the machine-dependent type `jmp_buf'.  PowerPC version.  */

#ifndef _BITS_SETJMP_H

#define _BITS_SETJMP_H  1

#if !defined _SETJMP_H && !defined _PTHREAD_H

# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."

#endif

/* The previous bits/setjmp.h had __jmp_buf defined as a structure.

   We use an array of 'long int' instead, to make writing the

   assembler easier. Naturally, user code should not depend on

   either representation. */

#include <bits/wordsize.h>

/* The current powerpc 32-bit Altivec ABI specifies for SVR4 ABI and EABI

   the vrsave must be at byte 248 & v20 at byte 256.  So we must pad this

   correctly on 32 bit.  It also insists that vecregs are only gauranteed

   4 byte alignment so we need to use vperm in the setjmp/longjmp routines.

   We have to version the code because members like  int __mask_was_saved

   in the jmp_buf will move as jmp_buf is now larger than 248 bytes.  We

   cannot keep the altivec jmp_buf backward compatible with the jmp_buf.  */

#ifndef	_ASM

# if __WORDSIZE == 64

typedef long int __jmp_buf[64] __attribute__ ((__aligned__ (16)));

# else

/* The alignment is not essential, i.e.the buffer can be copied to a 4 byte

   aligned buffer as per the ABI it is just added for performance reasons.  */

typedef long int __jmp_buf[64 + (12 * 4)] __attribute__ ((__aligned__ (16)));

# endif

#endif

#endif  /* bits/setjmp.h */