[unix-history] / include / a.out.h

/*-
 * Copyright (c) 1991 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)a.out.h	5.6 (Berkeley) 4/30/91
 */

#ifndef	_AOUT_H_
#define	_AOUT_H_

#include <sys/exec.h>

#if defined(hp300) || defined(i386)
#define	__LDPGSZ	4096
#endif
#if defined(tahoe) || defined(vax)
#define	__LDPGSZ	1024
#endif

#define N_GETMAGIC(ex) \
	( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : ((ex).a_midmag))
#define N_GETMAGIC2(ex) \
	( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : \
	(((ex).a_midmag) | 0x10000) )
#define N_GETMID(ex) \
	( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>16)&0x03ff) : MID_ZERO )
#define N_GETFLAG(ex) \
	( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>26)&0x3f) : 0 )
#define N_SETMAGIC(ex,mag,mid,flag) \
	( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \
	(((mag)&0xffff)) ) )

#define N_ALIGN(ex,x) \
	(N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC ? \
	 ((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) : (x))

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


/* Address of the bottom of the text segment. */
#define N_TXTADDR(ex)   (N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : __LDPGSZ)

/* Address of the bottom of the data segment. */
#define N_DATADDR(ex) \
	N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text)

/* Text segment offset. */
#define	N_TXTOFF(ex) \
	( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \
	0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? __LDPGSZ : sizeof(struct exec)) ) 


/* Data segment offset. */
#define	N_DATOFF(ex) \
	N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)

/* Relocation table offset. */
#define N_RELOFF(ex) \
	N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data)

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

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

/* Relocation format. */
struct relocation_info {
	int r_address;			  /* offset in text or data segment */
	unsigned int   r_symbolnum : 24,  /* ordinal number of add symbol */
			   r_pcrel :  1,  /* 1 if value should be pc-relative */
			  r_length :  2,  /* log base 2 of value's width */
			  r_extern :  1,  /* 1 if need to add symbol to value */
			 r_baserel :  1,  /* linkage table relative */
			r_jmptable :  1,  /* relocate to jump table */
			r_relative :  1,  /* load address relative */
			    r_copy :  1;  /* run time copy */
};

#define _AOUT_INCLUDE_
#include <nlist.h>

#endif /* !_AOUT_H_ */
Commit	Line	Data
15637ed4 RG	1	/*-
	2	* Copyright (c) 1991 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*
	33	* @(#)a.out.h 5.6 (Berkeley) 4/30/91
	34	*/
	35
	36	#ifndef _AOUT_H_
	37	#define _AOUT_H_
	38
	39	#include <sys/exec.h>
	40
	41	#if defined(hp300) \|\| defined(i386)
	42	#define __LDPGSZ 4096
	43	#endif
	44	#if defined(tahoe) \|\| defined(vax)
	45	#define __LDPGSZ 1024
	46	#endif
	47
79acc8c2 PR	48	#define N_GETMAGIC(ex) \
79acc8c2 PR	49	( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : ((ex).a_midmag))
27e5fa31 PR	50	#define N_GETMAGIC2(ex) \
	51	( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : \
	52	(((ex).a_midmag) \| 0x10000) )
79acc8c2 PR	53	#define N_GETMID(ex) \
	54	( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>16)&0x03ff) : MID_ZERO )
	55	#define N_GETFLAG(ex) \
	56	( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>26)&0x3f) : 0 )
	57	#define N_SETMAGIC(ex,mag,mid,flag) \
	58	( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) \| (((mid)&0x03ff)<<16) \| \
	59	(((mag)&0xffff)) ) )
	60
1d1b2c7e	61	#define N_ALIGN(ex,x) \
79acc8c2	62	(N_GETMAGIC(ex) == ZMAGIC \|\| N_GETMAGIC(ex) == QMAGIC ? \
1d1b2c7e RG	63	((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) : (x))
1d1b2c7e RG	64
15637ed4 RG	65	/* Valid magic number check. */
15637ed4 RG	66	#define N_BADMAG(ex) \
79acc8c2 PR	67	(N_GETMAGIC(ex) != NMAGIC && N_GETMAGIC(ex) != OMAGIC && \
	68	N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC)
	69
15637ed4 RG	70
15637ed4 RG	71	/* Address of the bottom of the text segment. */
27e5fa31	72	#define N_TXTADDR(ex) (N_GETMAGIC2(ex) == (ZMAGIC\|0x10000) ? 0 : __LDPGSZ)
15637ed4 RG	73
	74	/* Address of the bottom of the data segment. */
	75	#define N_DATADDR(ex) \
1d1b2c7e	76	N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text)
15637ed4 RG	77
	78	/* Text segment offset. */
	79	#define N_TXTOFF(ex) \
27e5fa31 PR	80	( N_GETMAGIC2(ex)==ZMAGIC \|\| N_GETMAGIC2(ex)==(QMAGIC\|0x10000) ? \
	81	0 : (N_GETMAGIC2(ex)==(ZMAGIC\|0x10000) ? __LDPGSZ : sizeof(struct exec)) )
	82
15637ed4 RG	83
	84	/* Data segment offset. */
	85	#define N_DATOFF(ex) \
1d1b2c7e RG	86	N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
	87
	88	/* Relocation table offset. */
	89	#define N_RELOFF(ex) \
	90	N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data)
15637ed4 RG	91
	92	/* Symbol table offset. */
	93	#define N_SYMOFF(ex) \
1d1b2c7e	94	(N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize)
15637ed4 RG	95
	96	/* String table offset. */
	97	#define N_STROFF(ex) (N_SYMOFF(ex) + (ex).a_syms)
	98
	99	/* Relocation format. */
	100	struct relocation_info {
79acc8c2 PR	101	int r_address; /* offset in text or data segment */
	102	unsigned int r_symbolnum : 24, /* ordinal number of add symbol */
	103	r_pcrel : 1, /* 1 if value should be pc-relative */
	104	r_length : 2, /* log base 2 of value's width */
	105	r_extern : 1, /* 1 if need to add symbol to value */
	106	r_baserel : 1, /* linkage table relative */
	107	r_jmptable : 1, /* relocate to jump table */
	108	r_relative : 1, /* load address relative */
	109	r_copy : 1; /* run time copy */
15637ed4 RG	110	};
	111
	112	#define _AOUT_INCLUDE_
	113	#include <nlist.h>
	114
	115	#endif /* !_AOUT_H_ */