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frame.h revision 1.2 
      1 /*-
      2  * Copyright (c) 1990 The Regents of the University of California.
      3  * All rights reserved.
      4  *
      5  * This code is derived from software contributed to Berkeley by
      6  * William Jolitz.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This product includes software developed by the University of
     19  *	California, Berkeley and its contributors.
     20  * 4. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  *	from: @(#)frame.h	5.2 (Berkeley) 1/18/91
     37  *	$Id: frame.h,v 1.2 1993/05/22 08:00:19 cgd Exp $
     38  */
     39 
     40 /*
     41  * System stack frames.
     42  */
     43 
     44 /*
     45  * Exception/Trap Stack Frame
     46  */
     47 
     48 struct trapframe {
     49 	int	tf_es;
     50 	int	tf_ds;
     51 	int	tf_edi;
     52 	int	tf_esi;
     53 	int	tf_ebp;
     54 	int	tf_isp;
     55 	int	tf_ebx;
     56 	int	tf_edx;
     57 	int	tf_ecx;
     58 	int	tf_eax;
     59 	int	tf_trapno;
     60 	/* below portion defined in 386 hardware */
     61 	int	tf_err;
     62 	int	tf_eip;
     63 	int	tf_cs;
     64 	int	tf_eflags;
     65 	/* below only when transitting rings (e.g. user to kernel) */
     66 	int	tf_esp;
     67 	int	tf_ss;
     68 };
     69 
     70 /* Interrupt stack frame */
     71 
     72 struct intrframe {
     73 	int	if_vec;
     74 	int	if_ppl;
     75 	int	if_es;
     76 	int	if_ds;
     77 	int	if_edi;
     78 	int	if_esi;
     79 	int	if_ebp;
     80 	int	:32;
     81 	int	if_ebx;
     82 	int	if_edx;
     83 	int	if_ecx;
     84 	int	if_eax;
     85 	int	:32;		/* for compat with trap frame - trapno */
     86 	int	:32;		/* for compat with trap frame - err */
     87 	/* below portion defined in 386 hardware */
     88 	int	if_eip;
     89 	int	if_cs;
     90 	int	if_eflags;
     91 	/* below only when transitting rings (e.g. user to kernel) */
     92 	int	if_esp;
     93 	int	if_ss;
     94 };
     95 
     96 /*
     97  * Call Gate/System Call Stack Frame
     98  */
     99 
    100 struct syscframe {
    101 	int	sf_edi;
    102 	int	sf_esi;
    103 	int	sf_ebp;
    104 	int	:32;		/* redundant save of isp */
    105 	int	sf_ebx;
    106 	int	sf_edx;
    107 	int	sf_ecx;
    108 	int	sf_eax;
    109 	int	sf_eflags;
    110 	/* below portion defined in 386 hardware */
    111 /*	int	sf_args[N]; 	/* if call gate copy args enabled!*/
    112 	int	sf_eip;
    113 	int	sf_cs;
    114 	/* below only when transitting rings (e.g. user to kernel) */
    115 	int	sf_esp;
    116 	int	sf_ss;
    117 };
    118