sys/arch/i386/include/reg.h

   1 /*      $NetBSD: reg.h,v 1.19 2008/01/16 09:37:08 ad 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. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  *      @(#)reg.h       5.5 (Berkeley) 1/18/91
  35  */
  36
  37 #ifndef _I386_REG_H_
  38 #define _I386_REG_H_
  39
  40 #include <machine/frame.h>
  41
  42 /*
  43  * Location of the users' stored
  44  * registers within appropriate frame of 'trap' and 'syscall', relative to
  45  * base of stack frame.
  46  *
  47  * XXX these should be nuked. They used to be used in the NetBSD/i386 bits
  48  * of gdb, but no more.
  49  */
  50
  51 /* When referenced during a trap/exception, registers are at these offsets */
  52
  53 #define tES     (offsetof(struct trapframe, tf_es) / sizeof (int))
  54 #define tDS     (offsetof(struct trapframe, tf_ds) / sizeof (int))
  55 #define tEDI    (offsetof(struct trapframe, tf_edi) / sizeof (int))
  56 #define tESI    (offsetof(struct trapframe, tf_esi) / sizeof (int))
  57 #define tEBP    (offsetof(struct trapframe, tf_ebp) / sizeof (int))
  58 #define tEBX    (offsetof(struct trapframe, tf_ebx) / sizeof (int))
  59 #define tEDX    (offsetof(struct trapframe, tf_edx) / sizeof (int))
  60 #define tECX    (offsetof(struct trapframe, tf_ecx) / sizeof (int))
  61 #define tEAX    (offsetof(struct trapframe, tf_eax) / sizeof (int))
  62
  63 #define tEIP    (offsetof(struct trapframe, tf_eip) / sizeof (int))
  64 #define tCS     (offsetof(struct trapframe, tf_cs) / sizeof (int))
  65 #define tEFLAGS (offsetof(struct trapframe, tf_eflags) / sizeof (int))
  66 #define tESP    (offsetof(struct trapframe, tf_esp) / sizeof (int))
  67 #define tSS     (offsetof(struct trapframe, tf_ss) / sizeof (int))
  68
  69 /*
  70  * Registers accessible to ptrace(2) syscall for debugger
  71  * The machine-dependent code for PT_{SET,GET}REGS needs to
  72  * use whichver order, defined above, is correct, so that it
  73  * is all invisible to the user.
  74  */
  75 struct reg {
  76         int     r_eax;
  77         int     r_ecx;
  78         int     r_edx;
  79         int     r_ebx;
  80         int     r_esp;
  81         int     r_ebp;
  82         int     r_esi;
  83         int     r_edi;
  84         int     r_eip;
  85         int     r_eflags;
  86         int     r_cs;
  87         int     r_ss;
  88         int     r_ds;
  89         int     r_es;
  90         int     r_fs;
  91         int     r_gs;
  92 };
  93
  94 struct fpreg {
  95         /*
  96          * XXX
  97          * Fill this in with real info.
  98          */
  99         char    __data[108];
 100 };
 101
 102 struct xmmregs {
 103         /*
 104          * XXX
 105          * Fill this in with real info.
 106          */
 107         char    __data[512];
 108 };
 109
 110 #endif /* !_I386_REG_H_ */