include/coff/mcore.h

   1 /* Motorolla MCore support for BFD.
   2    Copyright (C) 1999 Free Software Foundation, Inc.
   3
   4 This file is part of BFD, the Binary File Descriptor library.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 /* This file holds definitions specific to the MCore COFF/PE ABI. */
  21
  22 #ifndef _COFF_MORE_H
  23 #define _COFF_MORE_H
  24
  25
  26 #define E_DIMNUM        4       /* # array dimensions in auxiliary entry */
  27
  28 #define IMAGE_REL_MCORE_ABSOLUTE                0x0000
  29 #define IMAGE_REL_MCORE_ADDR32                  0x0001
  30 #define IMAGE_REL_MCORE_PCREL_IMM8BY4           0x0002
  31 #define IMAGE_REL_MCORE_PCREL_IMM11BY2          0x0003
  32 #define IMAGE_REL_MCORE_PCREL_IMM4BY2           0x0004
  33 #define IMAGE_REL_MCORE_PCREL_32                0x0005
  34 #define IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2      0x0006
  35
  36 #define PEMCORE
  37
  38 typedef struct
  39 {
  40   char  magic      [2];         /* type of file                         */
  41   char  vstamp     [2];         /* version stamp                        */
  42   char  tsize      [4];         /* text size in bytes, padded to FW bdry*/
  43   char  dsize      [4];         /* initialized data "  "                */
  44   char  bsize      [4];         /* uninitialized data "   "             */
  45   char  entry      [4];         /* entry pt.                            */
  46   char  text_start [4];         /* base of text used for this file */
  47   char  data_start [4];         /* base of data used for this file */
  48 }
  49 AOUTHDR;
  50
  51 #define AOUTSZ 28
  52 #define AOUTHDRSZ 28
  53
  54 #define OMAGIC          0404    /* object files, eg as output */
  55 #define ZMAGIC          0413    /* demand load format, eg normal ld output */
  56 #define STMAGIC         0401    /* target shlib */
  57 #define SHMAGIC         0443    /* host   shlib */
  58
  59 /* From winnt.h */
  60 #define IMAGE_NT_OPTIONAL_HDR_MAGIC        0x10b
  61
  62
  63 /* Define some NT default values. */
  64 #define NT_SECTION_ALIGNMENT 0x1000
  65 #define NT_FILE_ALIGNMENT    0x200
  66 #define NT_DEF_RESERVE       0x100000
  67 #define NT_DEF_COMMIT        0x1000
  68
  69
  70 struct external_reloc
  71 {
  72   char r_vaddr  [4];
  73   char r_symndx [4];
  74   char r_type   [2];
  75   char r_offset [4];
  76 };
  77
  78 #define RELOC struct external_reloc
  79 #define RELSZ 14
  80
  81 #define MCOREMAGIC      0xb00  /* I just made this up */
  82
  83 #define MCOREBADMAG(x) (((x).f_magic!= MCOREMAGIC))
  84
  85 struct external_filehdr
  86 {
  87   char f_magic  [2];    /* magic number                 */
  88   char f_nscns  [2];    /* number of sections           */
  89   char f_timdat [4];    /* time & date stamp            */
  90   char f_symptr [4];    /* file pointer to symtab       */
  91   char f_nsyms  [4];    /* number of symtab entries     */
  92   char f_opthdr [2];    /* sizeof(optional hdr)         */
  93   char f_flags  [2];    /* flags                        */
  94 };
  95
  96 #define FILHDR  struct external_filehdr
  97 #define FILHSZ  20
  98
  99
 100 #define E_SYMNMLEN      8       /* # characters in a symbol name        */
 101 #define E_FILNMLEN      14      /* # characters in a file name          */
 102 #define E_DIMNUM        4       /* # array dimensions in auxiliary entry */
 103
 104 struct external_syment
 105 {
 106   union
 107   {
 108     char e_name [E_SYMNMLEN];
 109     struct
 110     {
 111       char e_zeroes [4];
 112       char e_offset [4];
 113     } e;
 114   } e;
 115
 116   char e_value  [4];
 117   char e_scnum  [2];
 118   char e_type   [2];
 119   char e_sclass [1];
 120   char e_numaux [1];
 121 };
 122
 123 #define N_BTMASK        0xf
 124 #define N_TMASK         0x30
 125 #define N_BTSHFT        4
 126 #define N_TSHIFT        2
 127
 128 union external_auxent
 129 {
 130   struct
 131   {
 132     char x_tagndx [4];          /* str, un, or enum tag indx */
 133
 134     union
 135     {
 136       struct
 137       {
 138         char  x_lnno [2];       /* declaration line number */
 139         char  x_size [2];       /* str/union/array size */
 140       } x_lnsz;
 141
 142       char x_fsize [4];         /* size of function */
 143
 144     } x_misc;
 145
 146     union
 147     {
 148       struct                    /* if ISFCN, tag, or .bb */
 149       {
 150         char x_lnnoptr [4];     /* ptr to fcn line # */
 151         char x_endndx  [4];     /* entry ndx past block end */
 152       } x_fcn;
 153
 154       struct                    /* if ISARY, up to 4 dimen. */
 155       {
 156         char x_dimen [E_DIMNUM][2];
 157       } x_ary;
 158
 159     } x_fcnary;
 160
 161     char x_tvndx [2];           /* tv index */
 162
 163   } x_sym;
 164
 165   union
 166   {
 167     char x_fname [E_FILNMLEN];
 168
 169     struct
 170     {
 171       char x_zeroes [4];
 172       char x_offset [4];
 173     } x_n;
 174
 175   } x_file;
 176
 177   struct
 178   {
 179     char x_scnlen     [4];      /* section length */
 180     char x_nreloc     [2];      /* # relocation entries */
 181     char x_nlinno     [2];      /* # line numbers */
 182     char x_checksum   [4];      /* section COMDAT checksum */
 183     char x_associated [2];      /* COMDAT associated section index */
 184     char x_comdat     [1];      /* COMDAT selection number */
 185   } x_scn;
 186
 187   struct
 188   {
 189     char x_tvfill [4];          /* tv fill value */
 190     char x_tvlen  [2];          /* length of .tv */
 191     char x_tvran  [2][2];       /* tv range */
 192   } x_tv;                       /* info about .tv section (in auxent of symbol .tv)) */
 193 };
 194
 195 #define SYMENT  struct external_syment
 196 #define SYMESZ  18
 197 #define AUXENT  union external_auxent
 198 #define AUXESZ  18
 199
 200 /* 1 line number entry for every "breakpointable" source line in a section.
 201    Line numbers are grouped on a per function basis; first entry in a function
 202    grouping will have l_lnno = 0 and in place of physical address will be the
 203    symbol table index of the function name.  */
 204 struct external_lineno
 205 {
 206   union
 207   {
 208     char l_symndx [4];  /* function name symbol index, iff l_lnno == 0*/
 209     char l_paddr  [4];  /* (physical) address of line number    */
 210   } l_addr;
 211
 212   char l_lnno [2];      /* line number          */
 213 };
 214
 215 #define LINENO  struct external_lineno
 216 #define LINESZ  6
 217
 218 #define GET_LINENO_LNNO(abfd, ext)     bfd_h_get_32 (abfd, (bfd_byte *) (ext->l_lnno));
 219 #define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_32 (abfd, val, (bfd_byte *) (ext->l_lnno));
 220
 221 struct external_scnhdr
 222 {
 223   char  s_name    [8];  /* section name                 */
 224   char  s_paddr   [4];  /* physical address, aliased s_nlib */
 225   char  s_vaddr   [4];  /* virtual address              */
 226   char  s_size    [4];  /* section size                 */
 227   char  s_scnptr  [4];  /* file ptr to raw data for section */
 228   char  s_relptr  [4];  /* file ptr to relocation       */
 229   char  s_lnnoptr [4];  /* file ptr to line numbers     */
 230   char  s_nreloc  [2];  /* number of relocation entries */
 231   char  s_nlnno   [2];  /* number of line number entries*/
 232   char  s_flags   [4];  /* flags                        */
 233 };
 234
 235 #define SCNHDR  struct external_scnhdr
 236 #define SCNHSZ  40
 237
 238 /* Names of "special" sections.  */
 239 #define _TEXT   ".text"
 240 #define _DATA   ".data"
 241 #define _BSS    ".bss"
 242
 243
 244
 245 #endif /* __COFF_MCORE_H */