include/coff/m88k.h

   1 /* coff information for 88k bcs
   2
   3    Copyright (C) 2001-2017 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software
  17    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  18    MA 02110-1301, USA.  */
  19
  20 #define DO_NOT_DEFINE_SCNHDR
  21 #define L_LNNO_SIZE 4
  22 #define DO_NOT_DEFINE_SYMENT
  23 #define DO_NOT_DEFINE_AUXENT
  24 #include "coff/external.h"
  25
  26 #define MC88MAGIC  0540           /* 88k BCS executable */
  27 #define MC88DMAGIC 0541           /* DG/UX executable   */
  28 #define MC88OMAGIC 0555           /* Object file        */
  29
  30 #define MC88BADMAG(x) (((x).f_magic != MC88MAGIC) \
  31                     && ((x).f_magic != MC88DMAGIC) \
  32                     && ((x).f_magic != MC88OMAGIC))
  33
  34 #define PAGEMAGIC3   0414 /* Split i&d, zero mapped */
  35 #define PAGEMAGICBCS 0413
  36
  37 /********************** SECTION HEADER **********************/
  38
  39 struct external_scnhdr
  40 {
  41   char          s_name[8];      /* section name                 */
  42   char          s_paddr[4];     /* physical address, aliased s_nlib */
  43   char          s_vaddr[4];     /* virtual address              */
  44   char          s_size[4];      /* section size                 */
  45   char          s_scnptr[4];    /* file ptr to raw data for section */
  46   char          s_relptr[4];    /* file ptr to relocation       */
  47   char          s_lnnoptr[4];   /* file ptr to line numbers     */
  48   char          s_nreloc[4];    /* number of relocation entries */
  49   char          s_nlnno[4];     /* number of line number entries*/
  50   char          s_flags[4];     /* flags                        */
  51 };
  52
  53 #define SCNHDR  struct external_scnhdr
  54 #define SCNHSZ  44
  55
  56 /* Names of "special" sections.  */
  57 #define _TEXT   ".text"
  58 #define _DATA   ".data"
  59 #define _BSS    ".bss"
  60 #define _COMMENT ".comment"
  61
  62
  63 /********************** SYMBOLS **********************/
  64
  65 #define E_SYMNMLEN      8       /* # characters in a symbol name        */
  66 #define E_FILNMLEN      14      /* # characters in a file name          */
  67 #define E_DIMNUM        4       /* # array dimensions in auxiliary entry */
  68
  69 struct external_syment
  70 {
  71   union
  72   {
  73     char e_name[E_SYMNMLEN];
  74
  75     struct
  76     {
  77       char e_zeroes[4];
  78       char e_offset[4];
  79     } e;
  80
  81   } e;
  82
  83   char e_value[4];
  84   char e_scnum[2];
  85   char e_type[2];
  86   char e_sclass[1];
  87   char e_numaux[1];
  88   char pad2[2];
  89 };
  90
  91 #define N_BTMASK        017
  92 #define N_TMASK         060
  93 #define N_BTSHFT        4
  94 #define N_TSHIFT        2
  95
  96 /* Note that this isn't the same shape as other coffs */
  97 union external_auxent
  98 {
  99   struct
 100   {
 101     char x_tagndx[4];           /* str, un, or enum tag indx */
 102     /* 4 */
 103
 104     union
 105     {
 106       char x_fsize[4];          /* size of function */
 107
 108       struct
 109       {
 110         char  x_lnno[4];        /* declaration line number */
 111         char  x_size[4];        /* str/union/array size */
 112       } x_lnsz;
 113
 114     } x_misc;
 115
 116     /* 12 */
 117     union
 118     {
 119       struct                    /* if ISFCN, tag, or .bb */
 120       {
 121         char x_lnnoptr[4];      /* ptr to fcn line # */
 122         char x_endndx[4];               /* entry ndx past block end */
 123       } x_fcn;
 124
 125       struct                    /* if ISARY, up to 4 dimen. */
 126       {
 127         char x_dimen[E_DIMNUM][2];
 128       } x_ary;
 129
 130     } x_fcnary;
 131     /* 20 */
 132
 133   } x_sym;
 134
 135   union
 136   {
 137     char x_fname[E_FILNMLEN];
 138
 139     struct
 140     {
 141       char x_zeroes[4];
 142       char x_offset[4];
 143     } x_n;
 144
 145   } x_file;
 146
 147   struct
 148   {
 149     char x_scnlen[4];           /* section length */
 150     char x_nreloc[4];           /* # relocation entries */
 151     char x_nlinno[4];           /* # line numbers */
 152   } x_scn;
 153
 154   struct
 155   {
 156     char x_tvfill[4];           /* tv fill value */
 157     char x_tvlen[2];            /* length of .tv */
 158     char x_tvran[2][2];         /* tv range */
 159   } x_tv;                       /* info about .tv section (in auxent of symbol .tv)) */
 160 };
 161
 162 #define GET_LNSZ_SIZE(abfd, ext) \
 163   H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_size)
 164 #define GET_LNSZ_LNNO(abfd, ext) \
 165   H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno)
 166 #define PUT_LNSZ_LNNO(abfd, in, ext) \
 167   H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_lnno)
 168 #define PUT_LNSZ_SIZE(abfd, in, ext) \
 169   H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_size)
 170 #define GET_SCN_NRELOC(abfd, ext) \
 171   H_GET_32 (abfd, ext->x_scn.x_nreloc)
 172 #define GET_SCN_NLINNO(abfd, ext) \
 173   H_GET_32 (abfd, ext->x_scn.x_nlinno)
 174 #define PUT_SCN_NRELOC(abfd, in, ext) \
 175   H_PUT_32 (abfd, in, ext->x_scn.x_nreloc)
 176 #define PUT_SCN_NLINNO(abfd, in, ext) \
 177   H_PUT_32 (abfd,in, ext->x_scn.x_nlinno)
 178
 179 #define SYMENT  struct external_syment
 180 #define SYMESZ  20
 181 #define AUXENT  union external_auxent
 182 #define AUXESZ  20
 183
 184 /********************** RELOCATION DIRECTIVES **********************/
 185
 186 struct external_reloc
 187 {
 188   char r_vaddr[4];
 189   char r_symndx[4];
 190   char r_type[2];
 191   char r_offset[2];
 192 };
 193
 194 #define RELOC struct external_reloc
 195 #define RELSZ  12
 196
 197 #define NO_TVNDX