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 1.3 1993/05/24 11:37:21 cgd Exp $ 38 */ 39 40 /* 41 * Location of the users' stored 42 * registers within appropriate frame of 'trap' and 'syscall', relative to 43 * base of stack frame. 44 * Normal usage is u.u_ar0[XX] in kernel. 45 */ 46 47 /* When referenced during a trap/exception, registers are at these offsets */ 48 49 #define tES (0) 50 #define tDS (1) 51 #define tEDI (2) 52 #define tESI (3) 53 #define tEBP (4) 54 55 #define tEBX (6) 56 #define tEDX (7) 57 #define tECX (8) 58 #define tEAX (9) 59 60 #define tEIP (12) 61 #define tCS (13) 62 #define tEFLAGS (14) 63 #define tESP (15) 64 #define tSS (16) 65 66 /* During a system call, registers are at these offsets instead of above. */ 67 68 #define sEDI (0) 69 #define sESI (1) 70 #define sEBP (2) 71 72 #define sEBX (4) 73 #define sEDX (5) 74 #define sECX (6) 75 #define sEAX (7) 76 #define sEFLAGS (8) 77 #define sEIP (9) 78 #define sCS (10) 79 #define sESP (11) 80 #define sSS (12) 81 82 #define PC sEIP 83 #define SP sESP 84 #define PS sEFLAGS 85 #define R0 sEDX 86 #define R1 sECX 87 /* 88 * Registers accessible to ptrace(2) syscall for debugger 89 */ 90 #ifdef IPCREG 91 #define NIPCREG 14 92 int ipcreg[NIPCREG] = 93 { tES,tDS,tEDI,tESI,tEBP,tEBX,tEDX,tECX,tEAX,tEIP,tCS,tEFLAGS,tESP,tSS }; 94 int sipcreg[NIPCREG] = /* Should we define a structure with all regs? XXX */ 95 { 0, 0, sEDI,sESI,sEBP,sEBX,sEDX,sECX,sEAX,sEIP,sCS,sEFLAGS,sESP,sSS }; 96 #endif 97