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frame.h revision 1.11 
      1 /*	$NetBSD: frame.h,v 1.11 1995/05/01 14:13:26 mycroft Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1990 The Regents of the University of California.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to Berkeley by
      8  * William Jolitz.
      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 University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  *
     38  *	@(#)frame.h	5.2 (Berkeley) 1/18/91
     39  */
     40 
     41 #include <sys/signal.h>
     42 
     43 /*
     44  * System stack frames.
     45  */
     46 
     47 /*
     48  * Exception/Trap Stack Frame
     49  */
     50 struct trapframe {
     51 	int	tf_es;
     52 	int	tf_ds;
     53 	int	tf_edi;
     54 	int	tf_esi;
     55 	int	tf_ebp;
     56 	int	tf_ebx;
     57 	int	tf_edx;
     58 	int	tf_ecx;
     59 	int	tf_eax;
     60 	int	tf_trapno;
     61 	/* below portion defined in 386 hardware */
     62 	int	tf_err;
     63 	int	tf_eip;
     64 	int	tf_cs;
     65 	int	tf_eflags;
     66 	/* below used when transitting rings (e.g. user to kernel) */
     67 	int	tf_esp;
     68 	int	tf_ss;
     69 	/* below used when switching out of VM86 mode */
     70 	int	tf_vm86_es;
     71 	int	tf_vm86_ds;
     72 	int	tf_vm86_fs;
     73 	int	tf_vm86_gs;
     74 };
     75 
     76 /* Interrupt stack frame */
     77 struct intrframe {
     78 	int	if_ppl;
     79 	int	if_es;
     80 	int	if_ds;
     81 	int	if_edi;
     82 	int	if_esi;
     83 	int	if_ebp;
     84 	int	if_ebx;
     85 	int	if_edx;
     86 	int	if_ecx;
     87 	int	if_eax;
     88 	int	:32;		/* for compat with trap frame - trapno */
     89 	int	:32;		/* for compat with trap frame - err */
     90 	/* below portion defined in 386 hardware */
     91 	int	if_eip;
     92 	int	if_cs;
     93 	int	if_eflags;
     94 	/* below only when transitting rings (e.g. user to kernel) */
     95 	int	if_esp;
     96 	int	if_ss;
     97 };
     98 
     99 /*
    100  * Signal frame
    101  */
    102 struct sigframe {
    103 	int	sf_signum;
    104 	int	sf_code;
    105 	struct	sigcontext *sf_scp;
    106 	sig_t	sf_handler;
    107 	struct	sigcontext sf_sc;
    108 };
    109