reg.h revision 5
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 * @(#)reg.h 5.5 (Berkeley) 1/18/91 37 */ 38 39/* 40 * Location of the users' stored 41 * registers within appropriate frame of 'trap' and 'syscall', relative to 42 * base of stack frame. 43 * Normal usage is u.u_ar0[XX] in kernel. 44 */ 45 46/* When referenced during a trap/exception, registers are at these offsets */ 47 48#define tES (0) 49#define tDS (1) 50#define tEDI (2) 51#define tESI (3) 52#define tEBP (4) 53 54#define tEBX (6) 55#define tEDX (7) 56#define tECX (8) 57#define tEAX (9) 58 59#define tEIP (12) 60#define tCS (13) 61#define tEFLAGS (14) 62#define tESP (15) 63#define tSS (16) 64 65/* During a system call, registers are at these offsets instead of above. */ 66 67#define sEDI (0) 68#define sESI (1) 69#define sEBP (2) 70 71#define sEBX (4) 72#define sEDX (5) 73#define sECX (6) 74#define sEAX (7) 75#define sEFLAGS (8) 76#define sEIP (9) 77#define sCS (10) 78#define sESP (11) 79#define sSS (12) 80 81#define PC sEIP 82#define SP sESP 83#define PS sEFLAGS 84#define R0 sEDX 85#define R1 sECX 86/* 87 * Registers accessible to ptrace(2) syscall for debugger 88 */ 89#ifdef IPCREG 90#define NIPCREG 14 91int ipcreg[NIPCREG] = 92 { tES,tDS,tEDI,tESI,tEBP,tEBX,tEDX,tECX,tEAX,tEIP,tCS,tEFLAGS,tESP,tSS }; 93#endif 94