1 /* $NetBSD: reg.h,v 1.15 1997/10/16 02:31:32 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 * @(#)reg.h 5.5 (Berkeley) 1/18/91 39 */ 40 41 #ifndef _I386_REG_H_ 42 #define _I386_REG_H_ 43 44 /* 45 * Location of the users' stored 46 * registers within appropriate frame of 'trap' and 'syscall', relative to 47 * base of stack frame. 48 * 49 * XXX 50 * The #defines aren't used in the kernel, but some user-level code still 51 * expects them. 52 */ 53 54 /* When referenced during a trap/exception, registers are at these offsets */ 55 56 #define tES (0) 57 #define tDS (1) 58 #define tEDI (2) 59 #define tESI (3) 60 #define tEBP (4) 61 #define tEBX (5) 62 #define tEDX (6) 63 #define tECX (7) 64 #define tEAX (8) 65 66 #define tEIP (11) 67 #define tCS (12) 68 #define tEFLAGS (13) 69 #define tESP (14) 70 #define tSS (15) 71 72 /* 73 * Registers accessible to ptrace(2) syscall for debugger 74 * The machine-dependent code for PT_{SET,GET}REGS needs to 75 * use whichver order, defined above, is correct, so that it 76 * is all invisible to the user. 77 */ 78 struct reg { 79 int r_eax; 80 int r_ecx; 81 int r_edx; 82 int r_ebx; 83 int r_esp; 84 int r_ebp; 85 int r_esi; 86 int r_edi; 87 int r_eip; 88 int r_eflags; 89 int r_cs; 90 int r_ss; 91 int r_ds; 92 int r_es; 93 int r_fs; 94 int r_gs; 95 }; 96 97 struct fpreg { 98 /* 99 * XXX 100 * Fill this in with real info. 101 */ 102 char __data[108]; 103 }; 104 105 #endif /* !_I386_REG_H_ */ 106