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Annotation of sys/arch/i386/include/reg.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: reg.h,v 1.6 2005/04/03 20:21:44 kettenis Exp $        */
        !             2: /*     $NetBSD: reg.h,v 1.14 1995/10/11 04:20:24 mycroft Exp $ */
        !             3:
        !             4: /*-
        !             5:  * Copyright (c) 1990 The Regents of the University of California.
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * This code is derived from software contributed to Berkeley by
        !             9:  * William Jolitz.
        !            10:  *
        !            11:  * Redistribution and use in source and binary forms, with or without
        !            12:  * modification, are permitted provided that the following conditions
        !            13:  * are met:
        !            14:  * 1. Redistributions of source code must retain the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer.
        !            16:  * 2. Redistributions in binary form must reproduce the above copyright
        !            17:  *    notice, this list of conditions and the following disclaimer in the
        !            18:  *    documentation and/or other materials provided with the distribution.
        !            19:  * 3. Neither the name of the University nor the names of its contributors
        !            20:  *    may be used to endorse or promote products derived from this software
        !            21:  *    without specific prior written permission.
        !            22:  *
        !            23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            33:  * SUCH DAMAGE.
        !            34:  *
        !            35:  *     @(#)reg.h       5.5 (Berkeley) 1/18/91
        !            36:  */
        !            37:
        !            38: #ifndef _I386_REG_H_
        !            39: #define _I386_REG_H_
        !            40:
        !            41: /*
        !            42:  * Location of the users' stored
        !            43:  * registers within appropriate frame of 'trap' and 'syscall', relative to
        !            44:  * base of stack frame.
        !            45:  * Normal usage is u.u_ar0[XX] in kernel.
        !            46:  */
        !            47:
        !            48: /* When referenced during a trap/exception, registers are at these offsets */
        !            49:
        !            50: #define        tES     (0)
        !            51: #define        tDS     (1)
        !            52: #define        tEDI    (2)
        !            53: #define        tESI    (3)
        !            54: #define        tEBP    (4)
        !            55: #define        tEBX    (5)
        !            56: #define        tEDX    (6)
        !            57: #define        tECX    (7)
        !            58: #define        tEAX    (8)
        !            59:
        !            60: #define        tEIP    (11)
        !            61: #define        tCS     (12)
        !            62: #define        tEFLAGS (13)
        !            63: #define        tESP    (14)
        !            64: #define        tSS     (15)
        !            65:
        !            66: /*
        !            67:  * Registers accessible to ptrace(2) syscall for debugger
        !            68:  * The machine-dependent code for PT_{SET,GET}REGS needs to
        !            69:  * use whichever order, defined above, is correct, so that it
        !            70:  * is all invisible to the user.
        !            71:  */
        !            72: struct reg {
        !            73:        int     r_eax;
        !            74:        int     r_ecx;
        !            75:        int     r_edx;
        !            76:        int     r_ebx;
        !            77:        int     r_esp;
        !            78:        int     r_ebp;
        !            79:        int     r_esi;
        !            80:        int     r_edi;
        !            81:        int     r_eip;
        !            82:        int     r_eflags;
        !            83:        int     r_cs;
        !            84:        int     r_ss;
        !            85:        int     r_ds;
        !            86:        int     r_es;
        !            87:        int     r_fs;
        !            88:        int     r_gs;
        !            89: };
        !            90:
        !            91: struct fpreg {
        !            92:        /*
        !            93:         * XXX
        !            94:         * Fill this in with real info.
        !            95:         */
        !            96:        char    __data[116];
        !            97: };
        !            98:
        !            99: struct xmmregs {
        !           100:        char    __data[512];
        !           101: };
        !           102:
        !           103: #endif /* !_I386_REG_H_ */