4.3BSD-UWisc/include/sys/exec.h

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/*
 * 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
 */
/*
 * RCS Info	
 *	$Header: exec.h,v 3.1 86/10/22 13:23:57 tadl Exp $
 *	$Locker:  $
 */

/*
 * Header prepended to each a.out file.
 */
struct exec {
	long	a_magic;	/* magic number */
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 */