[apple/xnu.git] / bsd / ppc / exec.h

/*
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/* 
 * Copyright (c) 1994, The University of Utah and
 * the Center for Software Science at the University of Utah (CSS).
 * All rights reserved.
 *
 * Permission to use, copy, modify and distribute this software and its
 * documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 *
 * THE UNIVERSITY OF UTAH AND CSS ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
 * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSS DISCLAIM ANY LIABILITY OF
 * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 *
 * CSS requests users of this software to return to css-dist@cs.utah.edu any
 * improvements that they make and grant CSS redistribution rights.
 *
 */

#ifndef _BSD_PPC_EXEC_H_
#define _BSD_PPC_EXEC_H_


#include <sys/appleapiopts.h>

#ifdef __APPLE_API_OBSOLETE
/* Size of a page in an object file. */
#define	__LDPGSZ	4096

/* Valid magic number check. */
#define	N_BADMAG(ex) \
	((ex).a_magic != NMAGIC && (ex).a_magic != OMAGIC && \
	    (ex).a_magic != ZMAGIC)

/* Address of the bottom of the text segment. */
#define N_TXTADDR(X)	0

/* Address of the bottom of the data segment. */
#define N_DATADDR(ex) \
	(N_TXTADDR(ex) + ((ex).a_magic == OMAGIC ? (ex).a_text \
	: __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))

/* Text segment offset. */
#define	N_TXTOFF(ex) \
	((ex).a_magic == ZMAGIC ? __LDPGSZ : sizeof(struct exec))

/* Data segment offset. */
#define	N_DATOFF(ex) \
	(N_TXTOFF(ex) + ((ex).a_magic != ZMAGIC ? (ex).a_text : \
	__LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))

/* Symbol table offset. */
#define N_SYMOFF(ex) \
	(N_TXTOFF(ex) + (ex).a_text + (ex).a_data + (ex).a_trsize + \
	    (ex).a_drsize)

/* String table offset. */
#define	N_STROFF(ex) 	(N_SYMOFF(ex) + (ex).a_syms)

/* Description of the object file header (a.out format). */
struct exec {
#define	OMAGIC	0407		/* old impure format */
#define	NMAGIC	0410		/* read-only text */
#define	ZMAGIC	0413		/* demand load format */
#define QMAGIC	0314		/* demand load format. Header in text. */
	unsigned int	a_magic;	/* magic number */

	unsigned int	a_text;		/* text segment size */
	unsigned int	a_data;		/* initialized data size */
	unsigned int	a_bss;		/* uninitialized data size */
	unsigned int	a_syms;		/* symbol table size */
	unsigned int	a_entry;	/* entry point */
	unsigned int	a_trsize;	/* text relocation size */
	unsigned int	a_drsize;	/* data relocation size */
};

/*
 * Address of ps_strings structure (in user space).
 */
#define	PS_STRINGS \
	((struct ps_strings *)(USRSTACK - sizeof(struct ps_strings)))

#endif /* __APPLE_API_OBSOLETE */

#endif /* _BSD_PPC_EXEC_H_ */
Commit	Line	Data
1c79356b	1	/*
9bccf70c	2	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
d7e50217	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
1c79356b	7	*
d7e50217 A	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
d7e50217 A	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
1c79356b A	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	24	*/
	25	/*
	26	* Copyright (c) 1994, The University of Utah and
	27	* the Center for Software Science at the University of Utah (CSS).
	28	* All rights reserved.
	29	*
	30	* Permission to use, copy, modify and distribute this software and its
	31	* documentation is hereby granted, provided that both the copyright
	32	* notice and this permission notice appear in all copies of the
	33	* software, derivative works or modified versions, and any portions
	34	* thereof, and that both notices appear in supporting documentation.
	35	*
	36	* THE UNIVERSITY OF UTAH AND CSS ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
	37	* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSS DISCLAIM ANY LIABILITY OF
	38	* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	39	*
	40	* CSS requests users of this software to return to css-dist@cs.utah.edu any
	41	* improvements that they make and grant CSS redistribution rights.
	42	*
	43	*/
	44
9bccf70c A	45	#ifndef _BSD_PPC_EXEC_H_
	46	#define _BSD_PPC_EXEC_H_
	47
	48
	49	#include <sys/appleapiopts.h>
	50
	51	#ifdef __APPLE_API_OBSOLETE
1c79356b A	52	/* Size of a page in an object file. */
	53	#define __LDPGSZ 4096
	54
	55	/* Valid magic number check. */
	56	#define N_BADMAG(ex) \
	57	((ex).a_magic != NMAGIC && (ex).a_magic != OMAGIC && \
	58	(ex).a_magic != ZMAGIC)
	59
	60	/* Address of the bottom of the text segment. */
	61	#define N_TXTADDR(X) 0
	62
	63	/* Address of the bottom of the data segment. */
	64	#define N_DATADDR(ex) \
	65	(N_TXTADDR(ex) + ((ex).a_magic == OMAGIC ? (ex).a_text \
	66	: __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))
	67
	68	/* Text segment offset. */
	69	#define N_TXTOFF(ex) \
	70	((ex).a_magic == ZMAGIC ? __LDPGSZ : sizeof(struct exec))
	71
	72	/* Data segment offset. */
	73	#define N_DATOFF(ex) \
	74	(N_TXTOFF(ex) + ((ex).a_magic != ZMAGIC ? (ex).a_text : \
	75	__LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))
	76
	77	/* Symbol table offset. */
	78	#define N_SYMOFF(ex) \
	79	(N_TXTOFF(ex) + (ex).a_text + (ex).a_data + (ex).a_trsize + \
	80	(ex).a_drsize)
	81
	82	/* String table offset. */
	83	#define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms)
	84
	85	/* Description of the object file header (a.out format). */
	86	struct exec {
	87	#define OMAGIC 0407 /* old impure format */
	88	#define NMAGIC 0410 /* read-only text */
	89	#define ZMAGIC 0413 /* demand load format */
	90	#define QMAGIC 0314 /* demand load format. Header in text. */
	91	unsigned int a_magic; /* magic number */
	92
	93	unsigned int a_text; /* text segment size */
	94	unsigned int a_data; /* initialized data size */
	95	unsigned int a_bss; /* uninitialized data size */
	96	unsigned int a_syms; /* symbol table size */
	97	unsigned int a_entry; /* entry point */
	98	unsigned int a_trsize; /* text relocation size */
	99	unsigned int a_drsize; /* data relocation size */
	100	};
	101
	102	/*
	103	* Address of ps_strings structure (in user space).
	104	*/
	105	#define PS_STRINGS \
	106	((struct ps_strings *)(USRSTACK - sizeof(struct ps_strings)))
	107
9bccf70c A	108	#endif /* __APPLE_API_OBSOLETE */
	109
	110	#endif /* _BSD_PPC_EXEC_H_ */
	111