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

/*
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This 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 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	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* Copyright (c) 1994, The University of Utah and
	24	* the Center for Software Science at the University of Utah (CSS).
	25	* All rights reserved.
	26	*
	27	* Permission to use, copy, modify and distribute this software and its
	28	* documentation is hereby granted, provided that both the copyright
	29	* notice and this permission notice appear in all copies of the
	30	* software, derivative works or modified versions, and any portions
	31	* thereof, and that both notices appear in supporting documentation.
	32	*
	33	* THE UNIVERSITY OF UTAH AND CSS ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
	34	* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSS DISCLAIM ANY LIABILITY OF
	35	* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
	36	*
	37	* CSS requests users of this software to return to css-dist@cs.utah.edu any
	38	* improvements that they make and grant CSS redistribution rights.
	39	*
	40	*/
	41
9bccf70c A	42	#ifndef _BSD_PPC_EXEC_H_
	43	#define _BSD_PPC_EXEC_H_
	44
	45
	46	#include <sys/appleapiopts.h>
	47
	48	#ifdef __APPLE_API_OBSOLETE
1c79356b A	49	/* Size of a page in an object file. */
	50	#define __LDPGSZ 4096
	51
	52	/* Valid magic number check. */
	53	#define N_BADMAG(ex) \
	54	((ex).a_magic != NMAGIC && (ex).a_magic != OMAGIC && \
	55	(ex).a_magic != ZMAGIC)
	56
	57	/* Address of the bottom of the text segment. */
	58	#define N_TXTADDR(X) 0
	59
	60	/* Address of the bottom of the data segment. */
	61	#define N_DATADDR(ex) \
	62	(N_TXTADDR(ex) + ((ex).a_magic == OMAGIC ? (ex).a_text \
	63	: __LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))
	64
	65	/* Text segment offset. */
	66	#define N_TXTOFF(ex) \
	67	((ex).a_magic == ZMAGIC ? __LDPGSZ : sizeof(struct exec))
	68
	69	/* Data segment offset. */
	70	#define N_DATOFF(ex) \
	71	(N_TXTOFF(ex) + ((ex).a_magic != ZMAGIC ? (ex).a_text : \
	72	__LDPGSZ + ((ex).a_text - 1 & ~(__LDPGSZ - 1))))
	73
	74	/* Symbol table offset. */
	75	#define N_SYMOFF(ex) \
	76	(N_TXTOFF(ex) + (ex).a_text + (ex).a_data + (ex).a_trsize + \
	77	(ex).a_drsize)
	78
	79	/* String table offset. */
	80	#define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms)
	81
	82	/* Description of the object file header (a.out format). */
	83	struct exec {
	84	#define OMAGIC 0407 /* old impure format */
	85	#define NMAGIC 0410 /* read-only text */
	86	#define ZMAGIC 0413 /* demand load format */
	87	#define QMAGIC 0314 /* demand load format. Header in text. */
	88	unsigned int a_magic; /* magic number */
	89
	90	unsigned int a_text; /* text segment size */
	91	unsigned int a_data; /* initialized data size */
	92	unsigned int a_bss; /* uninitialized data size */
	93	unsigned int a_syms; /* symbol table size */
	94	unsigned int a_entry; /* entry point */
	95	unsigned int a_trsize; /* text relocation size */
	96	unsigned int a_drsize; /* data relocation size */
	97	};
	98
	99	/*
	100	* Address of ps_strings structure (in user space).
	101	*/
	102	#define PS_STRINGS \
	103	((struct ps_strings *)(USRSTACK - sizeof(struct ps_strings)))
	104
9bccf70c A	105	#endif /* __APPLE_API_OBSOLETE */
	106
	107	#endif /* _BSD_PPC_EXEC_H_ */
	108