reg.h revision 4
14Srgrimes/*- 24Srgrimes * Copyright (c) 1990 The Regents of the University of California. 34Srgrimes * All rights reserved. 44Srgrimes * 54Srgrimes * This code is derived from software contributed to Berkeley by 64Srgrimes * William Jolitz. 74Srgrimes * 84Srgrimes * Redistribution and use in source and binary forms, with or without 94Srgrimes * modification, are permitted provided that the following conditions 104Srgrimes * are met: 114Srgrimes * 1. Redistributions of source code must retain the above copyright 124Srgrimes * notice, this list of conditions and the following disclaimer. 134Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 144Srgrimes * notice, this list of conditions and the following disclaimer in the 154Srgrimes * documentation and/or other materials provided with the distribution. 164Srgrimes * 3. All advertising materials mentioning features or use of this software 174Srgrimes * must display the following acknowledgement: 184Srgrimes * This product includes software developed by the University of 194Srgrimes * California, Berkeley and its contributors. 204Srgrimes * 4. Neither the name of the University nor the names of its contributors 214Srgrimes * may be used to endorse or promote products derived from this software 224Srgrimes * without specific prior written permission. 234Srgrimes * 244Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 254Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 264Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 274Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 284Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 294Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 304Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 314Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 324Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 334Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 344Srgrimes * SUCH DAMAGE. 354Srgrimes * 364Srgrimes * @(#)reg.h 5.5 (Berkeley) 1/18/91 374Srgrimes */ 384Srgrimes 394Srgrimes/* 404Srgrimes * Location of the users' stored 414Srgrimes * registers within appropriate frame of 'trap' and 'syscall', relative to 424Srgrimes * base of stack frame. 434Srgrimes * Normal usage is u.u_ar0[XX] in kernel. 444Srgrimes */ 454Srgrimes 464Srgrimes/* When referenced during a trap/exception, registers are at these offsets */ 474Srgrimes 484Srgrimes#define tES (0) 494Srgrimes#define tDS (1) 504Srgrimes#define tEDI (2) 514Srgrimes#define tESI (3) 524Srgrimes#define tEBP (4) 534Srgrimes 544Srgrimes#define tEBX (6) 554Srgrimes#define tEDX (7) 564Srgrimes#define tECX (8) 574Srgrimes#define tEAX (9) 584Srgrimes 594Srgrimes#define tEIP (12) 604Srgrimes#define tCS (13) 614Srgrimes#define tEFLAGS (14) 624Srgrimes#define tESP (15) 634Srgrimes#define tSS (16) 644Srgrimes 654Srgrimes/* During a system call, registers are at these offsets instead of above. */ 664Srgrimes 674Srgrimes#define sEDI (0) 684Srgrimes#define sESI (1) 694Srgrimes#define sEBP (2) 704Srgrimes 714Srgrimes#define sEBX (4) 724Srgrimes#define sEDX (5) 734Srgrimes#define sECX (6) 744Srgrimes#define sEAX (7) 754Srgrimes#define sEFLAGS (8) 764Srgrimes#define sEIP (9) 774Srgrimes#define sCS (10) 784Srgrimes#define sESP (11) 794Srgrimes#define sSS (12) 804Srgrimes 814Srgrimes#define PC sEIP 824Srgrimes#define SP sESP 834Srgrimes#define PS sEFLAGS 844Srgrimes#define R0 sEDX 854Srgrimes#define R1 sECX 864Srgrimes/* 874Srgrimes * Registers accessible to ptrace(2) syscall for debugger 884Srgrimes */ 894Srgrimes#ifdef IPCREG 904Srgrimes#define NIPCREG 14 914Srgrimesint ipcreg[NIPCREG] = 924Srgrimes { tES,tDS,tEDI,tESI,tEBP,tEBX,tEDX,tECX,tEAX,tEIP,tCS,tEFLAGS,tESP,tSS }; 934Srgrimes#endif 94