sys/arch/amiga/stand/binpatch/a.out.h

   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(amiga)
  42 #define __LDPGSZ        8192
  43 #endif
  44 #if defined(hp300) || defined(i386)
  45 #define __LDPGSZ        4096
  46 #endif
  47 #if defined(tahoe) || defined(vax)
  48 #define __LDPGSZ        1024
  49 #endif
  50
  51 #define N_GETMAGIC(ex) \
  52     ( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : ((ex).a_midmag))
  53 #define N_GETMAGIC2(ex) \
  54     ( (((ex).a_midmag)&0xffff0000) ? (ntohl(((ex).a_midmag))&0xffff) : \
  55     (((ex).a_midmag) | 0x10000) )
  56 #define N_GETMID(ex) \
  57     ( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>16)&0x03ff) : MID_ZERO )
  58 #define N_GETFLAG(ex) \
  59     ( (((ex).a_midmag)&0xffff0000) ? ((ntohl(((ex).a_midmag))>>26)&0x3f) : 0 )
  60 #define N_SETMAGIC(ex,mag,mid,flag) \
  61     ( (ex).a_midmag = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \
  62     (((mag)&0xffff)) ) )
  63
  64 #define N_ALIGN(ex,x) \
  65         (/*N_GETMAGIC(ex) == ZMAGIC || N_GETMAGIC(ex) == QMAGIC ?*/ \
  66          ((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) /*: (x)*/)
  67
  68 /* Valid magic number check. */
  69 #define N_BADMAG(ex) \
  70         (N_GETMAGIC(ex) != NMAGIC && N_GETMAGIC(ex) != OMAGIC && \
  71             N_GETMAGIC(ex) != ZMAGIC && N_GETMAGIC(ex) != QMAGIC)
  72
  73 /* Address of the bottom of the text segment. */
  74 #define N_TXTADDR(ex)   (((N_GETMAGIC2(ex) == (ZMAGIC|0x10000)) \
  75                           || (N_GETMAGIC(ex) == NMAGIC)        \
  76                           || (N_GETMAGIC(ex) == OMAGIC)) ? 0 : __LDPGSZ)
  77
  78 /* Address of the bottom of the data segment. */
  79 #define N_DATADDR(ex) \
  80         N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text)
  81
  82 /* Text segment offset. */
  83 #define N_TXTOFF(ex) \
  84         ( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \
  85         0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? __LDPGSZ : sizeof(struct exec)) )
  86
  87 /* Data segment offset. */
  88 #define N_DATOFF(ex) \
  89         N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
  90
  91 /* Relocation table offset. */
  92 #define N_RELOFF(ex) \
  93         N_ALIGN(ex, N_DATOFF(ex) + (ex).a_data)
  94
  95 /* Symbol table offset. */
  96 #define N_SYMOFF(ex) \
  97         (N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize)
  98
  99 /* String table offset. */
 100 #define N_STROFF(ex)    (N_SYMOFF(ex) + (ex).a_syms)
 101
 102 /* Relocation format. */
 103 struct relocation_info {
 104         int r_address;                  /* offset in text or data segment */
 105         unsigned int r_symbolnum : 24,  /* ordinal number of add symbol */
 106                          r_pcrel :  1,  /* 1 if value should be pc-relative */
 107                         r_length :  2,  /* log base 2 of value's width */
 108                         r_extern :  1,  /* 1 if need to add symbol to value */
 109                                  :  4;  /* reserved */
 110 };
 111
 112 /* the system macros are plain wrong.. sigh.. */
 113 #undef N_TXTOFF
 114 #undef N_DATOFF
 115 #define N_TXTOFF(x) /* text segment */ \
 116         (N_GETMAGIC(x)==ZMAGIC ? 0 : sizeof (struct exec))
 117 #define N_DATOFF(x)   /* data segment */        \
 118         (N_TXTOFF(x) + (x).a_text)
 119 #undef N_TRELOFF
 120 #undef N_DRELOFF
 121 #undef N_SYMOFF
 122 #undef N_STROFF
 123 #define N_TRELOFF(x)  /* text reloc'n */        \
 124         (N_DATOFF(x) + (x).a_data)
 125 #define N_DRELOFF(x) /* data relocation*/       \
 126         (N_TRELOFF(x) + (x).a_trsize)
 127 #define N_SYMOFF(x) \
 128         /* symbol table */ \
 129         (N_TXTOFF(x)+(x).a_text+(x).a_data+(x).a_trsize+(x).a_drsize)
 130 #define N_STROFF(x) \
 131         /* string table */ \
 132         (N_SYMOFF(x) + (x).a_syms)
 133
 134 #undef N_TXTADDR
 135 #undef N_DATADDR
 136 #define N_TXTADDR(x) (N_GETMAGIC(x)==ZMAGIC?__LDPGSZ:0)
 137 #define N_DATADDR(x) \
 138         ((N_GETMAGIC(x)==OMAGIC)? (N_TXTADDR(x)+(x).a_text) \
 139         : (__LDPGSZ+((N_TXTADDR(x)+(x).a_text-1) & ~(__LDPGSZ-1))))
 140
 141
 142
 143
 144 #define _AOUT_INCLUDE_
 145 #include <nlist.h>
 146
 147 #endif /* !_AOUT_H_ */