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  * 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  * $FreeBSD: releng/5.1/sys/i386/include/frame.h 92761 2002-03-20 05:48:58Z alfred $
   38  */
   39 
   40 #ifndef _MACHINE_FRAME_H_
   41 #define _MACHINE_FRAME_H_ 1
   42 
   43 /*
   44  * System stack frames.
   45  */
   46 
   47 /*
   48  * Exception/Trap Stack Frame
   49  */
   50 
   51 struct trapframe {
   52         int     tf_fs;
   53         int     tf_es;
   54         int     tf_ds;
   55         int     tf_edi;
   56         int     tf_esi;
   57         int     tf_ebp;
   58         int     tf_isp;
   59         int     tf_ebx;
   60         int     tf_edx;
   61         int     tf_ecx;
   62         int     tf_eax;
   63         int     tf_trapno;
   64         /* below portion defined in 386 hardware */
   65         int     tf_err;
   66         int     tf_eip;
   67         int     tf_cs;
   68         int     tf_eflags;
   69         /* below only when crossing rings (e.g. user to kernel) */
   70         int     tf_esp;
   71         int     tf_ss;
   72 };
   73 
   74 /* Superset of trap frame, for traps from virtual-8086 mode */
   75 
   76 struct trapframe_vm86 {
   77         int     tf_fs;
   78         int     tf_es;
   79         int     tf_ds;
   80         int     tf_edi;
   81         int     tf_esi;
   82         int     tf_ebp;
   83         int     tf_isp;
   84         int     tf_ebx;
   85         int     tf_edx;
   86         int     tf_ecx;
   87         int     tf_eax;
   88         int     tf_trapno;
   89         /* below portion defined in 386 hardware */
   90         int     tf_err;
   91         int     tf_eip;
   92         int     tf_cs;
   93         int     tf_eflags;
   94         /* below only when crossing rings (e.g. user to kernel) */
   95         int     tf_esp;
   96         int     tf_ss;
   97         /* below only when switching out of VM86 mode */
   98         int     tf_vm86_es;
   99         int     tf_vm86_ds;
  100         int     tf_vm86_fs;
  101         int     tf_vm86_gs;
  102 };
  103 
  104 /* Interrupt stack frame */
  105 
  106 struct intrframe {
  107         int     if_vec;
  108         int     if_fs;
  109         int     if_es;
  110         int     if_ds;
  111         int     if_edi;
  112         int     if_esi;
  113         int     if_ebp;
  114         int     :32;
  115         int     if_ebx;
  116         int     if_edx;
  117         int     if_ecx;
  118         int     if_eax;
  119         int     :32;            /* for compat with trap frame - trapno */
  120         int     :32;            /* for compat with trap frame - err */
  121         /* below portion defined in 386 hardware */
  122         int     if_eip;
  123         int     if_cs;
  124         int     if_eflags;
  125         /* below only when crossing rings (e.g. user to kernel) */
  126         int     if_esp;
  127         int     if_ss;
  128 };
  129 
  130 /* frame of clock (same as interrupt frame) */
  131 
  132 struct clockframe {
  133         int     cf_vec;
  134         int     cf_fs;
  135         int     cf_es;
  136         int     cf_ds;
  137         int     cf_edi;
  138         int     cf_esi;
  139         int     cf_ebp;
  140         int     :32;
  141         int     cf_ebx;
  142         int     cf_edx;
  143         int     cf_ecx;
  144         int     cf_eax;
  145         int     :32;            /* for compat with trap frame - trapno */
  146         int     :32;            /* for compat with trap frame - err */
  147         /* below portion defined in 386 hardware */
  148         int     cf_eip;
  149         int     cf_cs;
  150         int     cf_eflags;
  151         /* below only when crossing rings (e.g. user to kernel) */
  152         int     cf_esp;
  153         int     cf_ss;
  154 };
  155 
  156 int     kdb_trap(int, int, struct trapframe *);
  157 extern  int (*pmath_emulate)(struct trapframe *);
  158 
  159 #define INTR_TO_TRAPFRAME(frame) ((struct trapframe *)&(frame)->if_fs)
  160 
  161 #endif /* _MACHINE_FRAME_H_ */

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