Return to exec.h CVS log

Up to [Apple Darwin 0.x] / kernel / bsd / i386

Annotation of kernel/bsd/i386/exec.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: 
        !            25: /*-
        !            26:  * Copyright (c) 1992, 1993
        !            27:  *     The Regents of the University of California.  All rights reserved.
        !            28:  *
        !            29:  * Redistribution and use in source and binary forms, with or without
        !            30:  * modification, are permitted provided that the following conditions
        !            31:  * are met:
        !            32:  * 1. Redistributions of source code must retain the above copyright
        !            33:  *    notice, this list of conditions and the following disclaimer.
        !            34:  * 2. Redistributions in binary form must reproduce the above copyright
        !            35:  *    notice, this list of conditions and the following disclaimer in the
        !            36:  *    documentation and/or other materials provided with the distribution.
        !            37:  * 3. All advertising materials mentioning features or use of this software
        !            38:  *    must display the following acknowledgement:
        !            39:  *     This product includes software developed by the University of
        !            40:  *     California, Berkeley and its contributors.
        !            41:  * 4. Neither the name of the University nor the names of its contributors
        !            42:  *    may be used to endorse or promote products derived from this software
        !            43:  *    without specific prior written permission.
        !            44:  *
        !            45:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            46:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            47:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            48:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            49:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            50:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            51:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            52:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            53:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            54:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            55:  * SUCH DAMAGE.
        !            56:  *
        !            57:  *     @(#)exec.h      8.1 (Berkeley) 6/11/93
        !            58:  */
        !            59: 
        !            60: /* Size of a page in an object file. */
        !            61: #define        __LDPGSZ        4096
        !            62: 
        !            63: /* Valid magic number check. */
        !            64: #define        N_BADMAG(ex) \
        !            65:        ((ex).a_magic != NMAGIC && (ex).a_magic != OMAGIC && \
        !            66:            (ex).a_magic != ZMAGIC)
        !            67: 
        !            68: /* Address of the bottom of the text segment. */
        !            69: #define N_TXTADDR(X)   0
        !            70: 
        !            71: /* Address of the bottom of the data segment. */
        !            72: #define N_DATADDR(ex) \
        !            73:        (N_TXTADDR(ex) + ((ex).a_magic == OMAGIC ? (ex).a_text \
        !            74:        : __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))
        !            75: 
        !            76: /* Text segment offset. */
        !            77: #define        N_TXTOFF(ex) \
        !            78:        ((ex).a_magic == ZMAGIC ? __LDPGSZ : sizeof(struct exec))
        !            79: 
        !            80: /* Data segment offset. */
        !            81: #define        N_DATOFF(ex) \
        !            82:        (N_TXTOFF(ex) + ((ex).a_magic != ZMAGIC ? (ex).a_text : \
        !            83:        __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))
        !            84: 
        !            85: /* Symbol table offset. */
        !            86: #define N_SYMOFF(ex) \
        !            87:        (N_TXTOFF(ex) + (ex).a_text + (ex).a_data + (ex).a_trsize + \
        !            88:            (ex).a_drsize)
        !            89: 
        !            90: /* String table offset. */
        !            91: #define        N_STROFF(ex)    (N_SYMOFF(ex) + (ex).a_syms)
        !            92: 
        !            93: /* Description of the object file header (a.out format). */
        !            94: struct exec {
        !            95: #define        OMAGIC  0407            /* old impure format */
        !            96: #define        NMAGIC  0410            /* read-only text */
        !            97: #define        ZMAGIC  0413            /* demand load format */
        !            98: #define QMAGIC 0314            /* demand load format. Header in text. */
        !            99:        unsigned int    a_magic;        /* magic number */
        !           100: 
        !           101:        unsigned int    a_text;         /* text segment size */
        !           102:        unsigned int    a_data;         /* initialized data size */
        !           103:        unsigned int    a_bss;          /* uninitialized data size */
        !           104:        unsigned int    a_syms;         /* symbol table size */
        !           105:        unsigned int    a_entry;        /* entry point */
        !           106:        unsigned int    a_trsize;       /* text relocation size */
        !           107:        unsigned int    a_drsize;       /* data relocation size */
        !           108: };
        !           109: 
        !           110: /*
        !           111:  * Address of ps_strings structure (in user space).
        !           112:  */
        !           113: #define        PS_STRINGS \
        !           114:        ((struct ps_strings *)(USRSTACK - sizeof(struct ps_strings)))

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.