usr/src/include/a.out.h

/*-
 * Copyright (c) 1991 The Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)a.out.h     5.9 (Berkeley) %G%
 */

#ifndef _AOUT_H_
#define _AOUT_H_

#include <sys/exec.h>

/* 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. */
#ifndef mips
#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)

/* 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 */
                                 :  4;  /* reserved */
};
#else /* mips */
#define N_TXTADDR(X)    0x400000
#endif /* mips */

#define _AOUT_INCLUDE_
#include <nlist.h>

#endif /* !_AOUT_H_ */