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Wed Apr 22 11:06:09 1998 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/bits/setjmp.h (_JMPBUF_UNWINDS): Added.
47 lines
1.7 KiB
C
47 lines
1.7 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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Define the machine-dependent type `jmp_buf'. m68k version. */
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#ifndef _SETJMP_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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typedef struct
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{
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/* There are eight 4-byte data registers, but D0 is not saved. */
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long int __dregs[7];
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/* There are six 4-byte address registers, plus the FP and SP. */
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int *__aregs[6];
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int *__fp;
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int *__sp;
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#if defined __HAVE_68881__ || defined __HAVE_FPU__
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/* There are eight floating point registers which
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are saved in IEEE 96-bit extended format. */
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char __fpregs[8 * (96 / 8)];
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#endif
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} __jmp_buf[1];
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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)->__sp)
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