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frame.h revision 1.16
      1 /*	$NetBSD: frame.h,v 1.16 2001/06/17 21:01:38 sommerfeld Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Charles M. Hannum.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*-
     40  * Copyright (c) 1990 The Regents of the University of California.
     41  * All rights reserved.
     42  *
     43  * This code is derived from software contributed to Berkeley by
     44  * William Jolitz.
     45  *
     46  * Redistribution and use in source and binary forms, with or without
     47  * modification, are permitted provided that the following conditions
     48  * are met:
     49  * 1. Redistributions of source code must retain the above copyright
     50  *    notice, this list of conditions and the following disclaimer.
     51  * 2. Redistributions in binary form must reproduce the above copyright
     52  *    notice, this list of conditions and the following disclaimer in the
     53  *    documentation and/or other materials provided with the distribution.
     54  * 3. All advertising materials mentioning features or use of this software
     55  *    must display the following acknowledgement:
     56  *	This product includes software developed by the University of
     57  *	California, Berkeley and its contributors.
     58  * 4. Neither the name of the University nor the names of its contributors
     59  *    may be used to endorse or promote products derived from this software
     60  *    without specific prior written permission.
     61  *
     62  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     63  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     64  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     65  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     66  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     67  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     68  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     69  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     70  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     71  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     72  * SUCH DAMAGE.
     73  *
     74  *	@(#)frame.h	5.2 (Berkeley) 1/18/91
     75  */
     76 
     77 #ifndef _I386_FRAME_H_
     78 #define _I386_FRAME_H_
     79 
     80 #include <sys/signal.h>
     81 
     82 /*
     83  * System stack frames.
     84  */
     85 
     86 /*
     87  * Exception/Trap Stack Frame
     88  */
     89 struct trapframe {
     90 	int	tf_gs;
     91 	int	tf_fs;
     92 	int	tf_es;
     93 	int	tf_ds;
     94 	int	tf_edi;
     95 	int	tf_esi;
     96 	int	tf_ebp;
     97 	int	tf_ebx;
     98 	int	tf_edx;
     99 	int	tf_ecx;
    100 	int	tf_eax;
    101 	int	tf_trapno;
    102 	/* below portion defined in 386 hardware */
    103 	int	tf_err;
    104 	int	tf_eip;
    105 	int	tf_cs;
    106 	int	tf_eflags;
    107 	/* below used when transitting rings (e.g. user to kernel) */
    108 	int	tf_esp;
    109 	int	tf_ss;
    110 	/* below used when switching out of VM86 mode */
    111 	int	tf_vm86_es;
    112 	int	tf_vm86_ds;
    113 	int	tf_vm86_fs;
    114 	int	tf_vm86_gs;
    115 };
    116 
    117 /*
    118  * Interrupt stack frame
    119  */
    120 struct intrframe {
    121 	int	if_ppl;
    122 	int	if_gs;
    123 	int	if_fs;
    124 	int	if_es;
    125 	int	if_ds;
    126 	int	if_edi;
    127 	int	if_esi;
    128 	int	if_ebp;
    129 	int	if_ebx;
    130 	int	if_edx;
    131 	int	if_ecx;
    132 	int	if_eax;
    133 	u_int32_t __if_trapno:32; /* for compat with trap frame - trapno */
    134 	u_int32_t __if_err:32;	/* for compat with trap frame - err */
    135 	/* below portion defined in 386 hardware */
    136 	int	if_eip;
    137 	int	if_cs;
    138 	int	if_eflags;
    139 	/* below only when transitting rings (e.g. user to kernel) */
    140 	int	if_esp;
    141 	int	if_ss;
    142 };
    143 
    144 /*
    145  * Stack frame inside cpu_switch()
    146  */
    147 struct switchframe {
    148 	int	sf_ppl;
    149 	int	sf_edi;
    150 	int	sf_esi;
    151 	int	sf_ebx;
    152 	int	sf_eip;
    153 };
    154 
    155 /*
    156  * Signal frame
    157  */
    158 struct sigframe {
    159 	int	sf_signum;
    160 	int	sf_code;
    161 	struct	sigcontext *sf_scp;
    162 	sig_t	sf_handler;
    163 	struct	sigcontext sf_sc;
    164 };
    165 
    166 #endif  /* _I386_FRAME_H_ */
    167