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/*
* Mach Operating System
* Copyright (c) 1993 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* Setjmp/longjmp buffer for i386.
*/
#ifndef _MACH_SETJMP_H_PROCESSED_
#define _MACH_SETJMP_H_PROCESSED_ 1
/* XXX prefix these with mach_ so they don't interfere with higher layers?
This stuff is included by cthreads.h. */
/* XXX The original definition of jmp_buf[] causes problems using
* libthreads when linked against NetBSD and FreeBSD's libc because
* it's too small. When cthreads calls _setjmp, it gets the libc
* version which saves more state than it's expecting and overwrites
* important cthread data. =( This definition is big enough for all
* known systems so far (Linux's is 6, FreeBSD's is 9 and NetBSD's is
* 10). This file really shouldn't even be here, since we should be
* using libc's setjmp.h.
*/
#if 0
#define _JBLEN 6
#else
#define _JBLEN 10
#endif
typedef int jmp_buf[_JBLEN]; /* ebx, esi, edi, ebp, esp, eip */
extern int setjmp (jmp_buf);
extern void longjmp (jmp_buf, int);
extern int _setjmp (jmp_buf);
extern void _longjmp (jmp_buf, int);
#endif /* _MACH_SETJMP_H_PROCESSED_ */
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