www.pudn.com > tcpipsim.rar > frame.h

/*- 
 * Copyright (c) 1990, 1993 
 *	The Regents of the University of California.  All rights reserved. 
 * 
 * This code is derived from software contributed to Berkeley by 
 * William Jolitz. 
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions 
 * are met: 
 * 1. Redistributions of source code must retain the above copyright 
 *    notice, this list of conditions and the following disclaimer. 
 * 2. Redistributions in binary form must reproduce the above copyright 
 *    notice, this list of conditions and the following disclaimer in the 
 *    documentation and/or other materials provided with the distribution. 
 * 3. All advertising materials mentioning features or use of this software 
 *    must display the following acknowledgement: 
 *	This product includes software developed by the University of 
 *	California, Berkeley and its contributors. 
 * 4. Neither the name of the University nor the names of its contributors 
 *    may be used to endorse or promote products derived from this software 
 *    without specific prior written permission. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
 * SUCH DAMAGE. 
 * 
 *	@(#)frame.h	8.1 (Berkeley) 6/11/93 
 */ 
 
/* 
 * System stack frames. 
 */ 
 
/* 
 * Exception/Trap Stack Frame 
 */ 
 
struct trapframe { 
	int	tf_es; 
	int	tf_ds; 
	int	tf_edi; 
	int	tf_esi; 
	int	tf_ebp; 
	int	tf_isp; 
	int	tf_ebx; 
	int	tf_edx; 
	int	tf_ecx; 
	int	tf_eax; 
	int	tf_trapno; 
	/* below portion defined in 386 hardware */ 
	int	tf_err; 
	int	tf_eip; 
	int	tf_cs; 
	int	tf_eflags; 
	/* below only when transitting rings (e.g. user to kernel) */ 
	int	tf_esp; 
	int	tf_ss; 
}; 
 
/* Interrupt stack frame */ 
 
struct intrframe { 
	int	if_vec; 
	int	if_ppl; 
	int	if_es; 
	int	if_ds; 
	int	if_edi; 
	int	if_esi; 
	int	if_ebp; 
	int	:32; 
	int	if_ebx; 
	int	if_edx; 
	int	if_ecx; 
	int	if_eax; 
	int	:32;		/* for compat with trap frame - trapno */ 
	int	:32;		/* for compat with trap frame - err */ 
	/* below portion defined in 386 hardware */ 
	int	if_eip; 
	int	if_cs; 
	int	if_eflags; 
	/* below only when transitting rings (e.g. user to kernel) */ 
	int	if_esp; 
	int	if_ss; 
}; 
 
/* 
 * Call Gate/System Call Stack Frame 
 */ 
 
struct syscframe { 
	int	sf_edi; 
	int	sf_esi; 
	int	sf_ebp; 
	int	:32;		/* redundant save of isp */ 
	int	sf_ebx; 
	int	sf_edx; 
	int	sf_ecx; 
	int	sf_eax; 
	int	sf_eflags; 
	/* below portion defined in 386 hardware */ 
/*	int	sf_args[N]; 	/* if call gate copy args enabled!*/ 
	int	sf_eip; 
	int	sf_cs; 
	/* below only when transitting rings (e.g. user to kernel) */ 
	int	sf_esp; 
	int	sf_ss; 
};