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- /*
- * Mach Operating System
- * Copyright (c) 1987 Carnegie-Mellon University
- * All rights reserved. The CMU software License Agreement specifies
- * the terms and conditions for use and redistribution.
- */
- /*
- **********************************************************************
- * HISTORY
- * 13-Feb-88 John Seamons (jks) at NeXT
- * NeXT: use same hack as Sun for machine type.
- *
- * 12-Sep-86 Jonathan J. Chew (jjc) at Carnegie-Mellon University
- * Changed first long word to two shorts for the Sun to give
- * the machine type along with the magic number.
- * Added machine types for Sun.
- * Made file includable more than once.
- *
- **********************************************************************
- */
-
- /*
- * Copyright (c) 1982, 1986 Regents of the University of California.
- * All rights reserved. The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
- *
- * @(#)exec.h 7.1 (Berkeley) 6/4/86
- */
-
- #ifndef _EXEC_
- #define _EXEC_ 1
-
- /*
- * Header prepended to each a.out file.
- */
- struct exec {
- #if sun || NeXT
- unsigned short a_machtype; /* machine type */
- unsigned short a_magic; /* magic number */
- #else sun || NeXT
- long a_magic; /* magic number */
- #endif sun || NeXT
- unsigned long a_text; /* size of text segment */
- unsigned long a_data; /* size of initialized data */
- unsigned long a_bss; /* size of uninitialized data */
- unsigned long a_syms; /* size of symbol table */
- unsigned long a_entry; /* entry point */
- unsigned long a_trsize; /* size of text relocation */
- unsigned long a_drsize; /* size of data relocation */
- };
-
- #define OMAGIC 0407 /* old impure format */
- #define NMAGIC 0410 /* read-only text */
- #define ZMAGIC 0413 /* demand load format */
-
- #ifdef sun
- /* Sun machine types */
-
- #define M_OLDSUN2 0 /* old sun-2 executable files */
- #define M_68010 1 /* runs on either 68010 or 68020 */
- #define M_68020 2 /* runs only on 68020 */
- #endif sun
-
- #endif _EXEC_
-