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/* 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 */
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