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53 lines
2.0 KiB
C
53 lines
2.0 KiB
C
/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* Define the machine-dependent type `jmp_buf'. ARM version. */
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#ifndef _BITS_SETJMP_H
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#define _BITS_SETJMP_H 1
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#if !defined _SETJMP_H && !defined _PTHREAD_H
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# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
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#endif
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#ifndef _ASM
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/* Jump buffer contains v1-v6, sl, fp, sp and pc. Other registers are not
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saved. */
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#ifdef __ARM_EABI__
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/* The exact set of registers saved may depend on the particular core
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in use, as some coprocessor registers may need to be saved. The C
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Library ABI requires that the buffer be 8-byte aligned, and
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recommends that the buffer contain 64 words. The first 28 words
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are occupied by v1-v6, sl, fp, sp, pc, d8-d15, and fpscr. (Note
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that d8-15 require 17 words, due to the use of fstmx.) */
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typedef int __jmp_buf[64] __attribute__((aligned (8)));
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#elif defined __MAVERICK__ || defined __IWMMXT__
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typedef int __jmp_buf[34];
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#else
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typedef int __jmp_buf[22];
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#endif
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#endif
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#define __JMP_BUF_SP 8
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/* Test if longjmp to JMPBUF would unwind the frame
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containing a local variable at ADDRESS. */
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#define _JMPBUF_UNWINDS(jmpbuf, address) \
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((void *) (address) < (void *) (jmpbuf[__JMP_BUF_SP]))
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#endif /* bits/setjmp.h */
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