include/coff/m88k.h

   1 /* coff information for 88k bcs
   2
   3    Copyright 2001 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 2 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, MA 02110-1301, USA.  */
  18
  19 #define DO_NOT_DEFINE_SCNHDR
  20 #define L_LNNO_SIZE 4
  21 #define DO_NOT_DEFINE_SYMENT
  22 #define DO_NOT_DEFINE_AUXENT
  23 #include "coff/external.h"
  24
  25 #define MC88MAGIC  0540           /* 88k BCS executable */
  26 #define MC88DMAGIC 0541           /* DG/UX executable   */
  27 #define MC88OMAGIC 0555           /* Object file        */
  28
  29 #define MC88BADMAG(x) (((x).f_magic != MC88MAGIC) \
  30                     && ((x).f_magic != MC88DMAGIC) \
  31                     && ((x).f_magic != MC88OMAGIC))
  32
  33 #define PAGEMAGIC3   0414 /* Split i&d, zero mapped */
  34 #define PAGEMAGICBCS 0413
  35
  36 /********************** SECTION HEADER **********************/
  37
  38 struct external_scnhdr
  39 {
  40   char          s_name[8];      /* section name                 */
  41   char          s_paddr[4];     /* physical address, aliased s_nlib */
  42   char          s_vaddr[4];     /* virtual address              */
  43   char          s_size[4];      /* section size                 */
  44   char          s_scnptr[4];    /* file ptr to raw data for section */
  45   char          s_relptr[4];    /* file ptr to relocation       */
  46   char          s_lnnoptr[4];   /* file ptr to line numbers     */
  47   char          s_nreloc[4];    /* number of relocation entries */
  48   char          s_nlnno[4];     /* number of line number entries*/
  49   char          s_flags[4];     /* flags                        */
  50 };
  51
  52 #define SCNHDR  struct external_scnhdr
  53 #define SCNHSZ  44
  54
  55 /* Names of "special" sections.  */
  56 #define _TEXT   ".text"
  57 #define _DATA   ".data"
  58 #define _BSS    ".bss"
  59 #define _COMMENT ".comment"
  60
  61
  62 /********************** SYMBOLS **********************/
  63
  64 #define E_SYMNMLEN      8       /* # characters in a symbol name        */
  65 #define E_FILNMLEN      14      /* # characters in a file name          */
  66 #define E_DIMNUM        4       /* # array dimensions in auxiliary entry */
  67
  68 struct external_syment
  69 {
  70   union
  71   {
  72     char e_name[E_SYMNMLEN];
  73
  74     struct
  75     {
  76       char e_zeroes[4];
  77       char e_offset[4];
  78     } e;
  79
  80   } e;
  81
  82   char e_value[4];
  83   char e_scnum[2];
  84   char e_type[2];
  85   char e_sclass[1];
  86   char e_numaux[1];
  87   char pad2[2];
  88 };
  89
  90 #define N_BTMASK        017
  91 #define N_TMASK         060
  92 #define N_BTSHFT        4
  93 #define N_TSHIFT        2
  94
  95 /* Note that this isn't the same shape as other coffs */
  96 union external_auxent
  97 {
  98   struct
  99   {
 100     char x_tagndx[4];           /* str, un, or enum tag indx */
 101     /* 4 */
 102
 103     union
 104     {
 105       char x_fsize[4];          /* size of function */
 106
 107       struct
 108       {
 109         char  x_lnno[4];        /* declaration line number */
 110         char  x_size[4];        /* str/union/array size */
 111       } x_lnsz;
 112
 113     } x_misc;
 114
 115     /* 12 */
 116     union
 117     {
 118       struct                    /* if ISFCN, tag, or .bb */
 119       {
 120         char x_lnnoptr[4];      /* ptr to fcn line # */
 121         char x_endndx[4];               /* entry ndx past block end */
 122       } x_fcn;
 123
 124       struct                    /* if ISARY, up to 4 dimen. */
 125       {
 126         char x_dimen[E_DIMNUM][2];
 127       } x_ary;
 128
 129     } x_fcnary;
 130     /* 20 */
 131
 132   } x_sym;
 133
 134   union
 135   {
 136     char x_fname[E_FILNMLEN];
 137
 138     struct
 139     {
 140       char x_zeroes[4];
 141       char x_offset[4];
 142     } x_n;
 143
 144   } x_file;
 145
 146   struct
 147   {
 148     char x_scnlen[4];           /* section length */
 149     char x_nreloc[4];           /* # relocation entries */
 150     char x_nlinno[4];           /* # line numbers */
 151   } x_scn;
 152
 153   struct
 154   {
 155     char x_tvfill[4];           /* tv fill value */
 156     char x_tvlen[2];            /* length of .tv */
 157     char x_tvran[2][2];         /* tv range */
 158   } x_tv;                       /* info about .tv section (in auxent of symbol .tv)) */
 159 };
 160
 161 #define GET_LNSZ_SIZE(abfd, ext) \
 162   H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_size)
 163 #define GET_LNSZ_LNNO(abfd, ext) \
 164   H_GET_32 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno)
 165 #define PUT_LNSZ_LNNO(abfd, in, ext) \
 166   H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_lnno)
 167 #define PUT_LNSZ_SIZE(abfd, in, ext) \
 168   H_PUT_32 (abfd, in, ext->x_sym.x_misc.x_lnsz.x_size)
 169 #define GET_SCN_NRELOC(abfd, ext) \
 170   H_GET_32 (abfd, ext->x_scn.x_nreloc)
 171 #define GET_SCN_NLINNO(abfd, ext) \
 172   H_GET_32 (abfd, ext->x_scn.x_nlinno)
 173 #define PUT_SCN_NRELOC(abfd, in, ext) \
 174   H_PUT_32 (abfd, in, ext->x_scn.x_nreloc)
 175 #define PUT_SCN_NLINNO(abfd, in, ext) \
 176   H_PUT_32 (abfd,in, ext->x_scn.x_nlinno)
 177
 178 #define SYMENT  struct external_syment
 179 #define SYMESZ  20
 180 #define AUXENT  union external_auxent
 181 #define AUXESZ  20
 182
 183 /********************** RELOCATION DIRECTIVES **********************/
 184
 185 struct external_reloc
 186 {
 187   char r_vaddr[4];
 188   char r_symndx[4];
 189   char r_type[2];
 190   char r_offset[2];
 191 };
 192
 193 #define RELOC struct external_reloc
 194 #define RELSZ  12
 195
 196 #define NO_TVNDX