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: @(#)reg.h 5.5 (Berkeley) 1/18/91 37 * $Id: reg.h,v 1.6 1994/01/03 07:55:34 davidg Exp $ 38 */ 39 40 #ifndef _MACHINE_REG_H_ 41 #define _MACHINE_REG_H_ 1 42 43 /* 44 * Location of the users' stored 45 * registers within appropriate frame of 'trap' and 'syscall', relative to 46 * base of stack frame. 47 * Normal usage is u.u_ar0[XX] in kernel. 48 */ 49 50 /* When referenced during a trap/exception, registers are at these offsets */ 51 52 #define tES (0) 53 #define tDS (1) 54 #define tEDI (2) 55 #define tESI (3) 56 #define tEBP (4) 57 #define tISP (5) 58 #define tEBX (6) 59 #define tEDX (7) 60 #define tECX (8) 61 #define tEAX (9) 62 63 #define tERR (11) 64 65 #define tEIP (12) 66 #define tCS (13) 67 #define tEFLAGS (14) 68 #define tESP (15) 69 #define tSS (16) 70 71 /* 72 * Registers accessible to ptrace(2) syscall for debugger 73 * The machine-dependent code for PT_{SET,GET}REGS needs to 74 * use whichver order, defined above, is correct, so that it 75 * is all invisible to the user. 76 */ 77 struct reg { 78 unsigned int r_es; 79 unsigned int r_ds; 80 unsigned int r_edi; 81 unsigned int r_esi; 82 unsigned int r_ebp; 83 unsigned int r_isp; 84 unsigned int r_ebx; 85 unsigned int r_edx; 86 unsigned int r_ecx; 87 unsigned int r_eax; 88 unsigned int r_trapno; 89 unsigned int r_err; 90 unsigned int r_eip; 91 unsigned int r_cs; 92 unsigned int r_eflags; 93 unsigned int r_esp; 94 unsigned int r_ss; 95 }; 96 97 /* 98 * Register set accessible via /proc/$pid/fpreg 99 */ 100 struct fpreg { 101 #if 0 102 int fpr_xxx; /* not implemented */ 103 #endif 104 }; 105 106 #endif /* _MACHINE_REG_H_ */ 107