The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i386/include/frame.h

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    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  * 4. Neither the name of the University nor the names of its contributors
   17  *    may be used to endorse or promote products derived from this software
   18  *    without specific prior written permission.
   19  *
   20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   30  * SUCH DAMAGE.
   31  *
   32  *      from: @(#)frame.h       5.2 (Berkeley) 1/18/91
   33  * $FreeBSD: releng/9.0/sys/i386/include/frame.h 153666 2005-12-22 22:16:09Z jhb $
   34  */
   35 
   36 #ifndef _MACHINE_FRAME_H_
   37 #define _MACHINE_FRAME_H_ 1
   38 
   39 /*
   40  * System stack frames.
   41  */
   42 
   43 /*
   44  * Exception/Trap Stack Frame
   45  */
   46 
   47 struct trapframe {
   48         int     tf_fs;
   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 crossing rings (e.g. user to kernel) */
   66         int     tf_esp;
   67         int     tf_ss;
   68 };
   69 
   70 /* Superset of trap frame, for traps from virtual-8086 mode */
   71 
   72 struct trapframe_vm86 {
   73         int     tf_fs;
   74         int     tf_es;
   75         int     tf_ds;
   76         int     tf_edi;
   77         int     tf_esi;
   78         int     tf_ebp;
   79         int     tf_isp;
   80         int     tf_ebx;
   81         int     tf_edx;
   82         int     tf_ecx;
   83         int     tf_eax;
   84         int     tf_trapno;
   85         /* below portion defined in 386 hardware */
   86         int     tf_err;
   87         int     tf_eip;
   88         int     tf_cs;
   89         int     tf_eflags;
   90         /* below only when crossing rings (e.g. user to kernel) */
   91         int     tf_esp;
   92         int     tf_ss;
   93         /* below only when switching out of VM86 mode */
   94         int     tf_vm86_es;
   95         int     tf_vm86_ds;
   96         int     tf_vm86_fs;
   97         int     tf_vm86_gs;
   98 };
   99 
  100 #endif /* _MACHINE_FRAME_H_ */

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