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Annotation of GNUtools/cctools/include/gnu/exec.h, revision 1.1.1.1

1.1       root        1: /* 
                      2:  * Mach Operating System
                      3:  * Copyright (c) 1987 Carnegie-Mellon University
                      4:  * All rights reserved.  The CMU software License Agreement specifies
                      5:  * the terms and conditions for use and redistribution.
                      6:  */
                      7: /*
                      8:  **********************************************************************
                      9:  * HISTORY
                     10:  * 13-Feb-88  John Seamons (jks) at NeXT
                     11:  *     NeXT: use same hack as Sun for machine type.
                     12:  *
                     13:  * 12-Sep-86  Jonathan J. Chew (jjc) at Carnegie-Mellon University
                     14:  *     Changed first long word to two shorts for the Sun to give
                     15:  *     the machine type along with the magic number.
                     16:  *     Added machine types for Sun.
                     17:  *     Made file includable more than once.
                     18:  *
                     19:  **********************************************************************
                     20:  */
                     21:  
                     22: /*
                     23:  * Copyright (c) 1982, 1986 Regents of the University of California.
                     24:  * All rights reserved.  The Berkeley software License Agreement
                     25:  * specifies the terms and conditions for redistribution.
                     26:  *
                     27:  *     @(#)exec.h      7.1 (Berkeley) 6/4/86
                     28:  */
                     29: 
                     30: #ifndef        _EXEC_
                     31: #define        _EXEC_  1
                     32: 
                     33: /*
                     34:  * Header prepended to each a.out file.
                     35:  */
                     36: struct exec {
                     37: #if    sun || NeXT
                     38: unsigned short  a_machtype;     /* machine type */
                     39: unsigned short  a_magic;        /* magic number */
                     40: #else  sun || NeXT
                     41:        long    a_magic;        /* magic number */
                     42: #endif sun || NeXT
                     43: unsigned long  a_text;         /* size of text segment */
                     44: unsigned long  a_data;         /* size of initialized data */
                     45: unsigned long  a_bss;          /* size of uninitialized data */
                     46: unsigned long  a_syms;         /* size of symbol table */
                     47: unsigned long  a_entry;        /* entry point */
                     48: unsigned long  a_trsize;       /* size of text relocation */
                     49: unsigned long  a_drsize;       /* size of data relocation */
                     50: };
                     51: 
                     52: #define        OMAGIC  0407            /* old impure format */
                     53: #define        NMAGIC  0410            /* read-only text */
                     54: #define        ZMAGIC  0413            /* demand load format */
                     55: 
                     56: #ifdef sun
                     57: /* Sun machine types */
                     58: 
                     59: #define M_OLDSUN2      0       /* old sun-2 executable files */
                     60: #define M_68010                1       /* runs on either 68010 or 68020 */
                     61: #define M_68020                2       /* runs only on 68020 */
                     62: #endif sun
                     63: 
                     64: #endif _EXEC_

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