bfd/coff-mcore.c

   1 /* BFD back-end for Motorola MCore COFF/PE
   2    Copyright 1999, 2000, 2001, 2002, 2003 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, 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 #include "bfd.h"
  22 #include "sysdep.h"
  23 #include "libbfd.h"
  24 #include "coff/mcore.h"
  25 #include "coff/internal.h"
  26 #include "coff/pe.h"
  27 #include "libcoff.h"
  28
  29 #ifdef BADMAG
  30 #undef BADMAG
  31 #endif
  32 #define BADMAG(x) MCOREBADMAG(x)
  33
  34 #ifndef NUM_ELEM
  35 #define NUM_ELEM(A) (sizeof (A) / sizeof (A)[0])
  36 #endif
  37
  38 /* This file is compiled more than once, but we only compile the
  39    final_link routine once.  */
  40 extern bfd_boolean mcore_bfd_coff_final_link
  41   PARAMS ((bfd *, struct bfd_link_info *));
  42 #if 0
  43 static struct bfd_link_hash_table *coff_mcore_link_hash_table_create
  44   PARAMS ((bfd *));
  45 #endif
  46 static bfd_reloc_status_type mcore_coff_unsupported_reloc
  47   PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
  48 static bfd_boolean coff_mcore_relocate_section
  49   PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
  50            struct internal_reloc *, struct internal_syment *, asection **));
  51 static reloc_howto_type *mcore_coff_reloc_type_lookup
  52   PARAMS ((bfd *, bfd_reloc_code_real_type));
  53 static reloc_howto_type *coff_mcore_rtype_to_howto
  54   PARAMS ((bfd *, asection *, struct internal_reloc *,
  55            struct coff_link_hash_entry *, struct internal_syment *,
  56            bfd_vma *));
  57 static void mcore_emit_base_file_entry
  58   PARAMS ((struct bfd_link_info *, bfd *, asection *, bfd_vma));
  59 static bfd_boolean in_reloc_p PARAMS ((bfd *, reloc_howto_type *));
  60 \f
  61 /* The NT loader points the toc register to &toc + 32768, in order to
  62    use the complete range of a 16-bit displacement. We have to adjust
  63    for this when we fix up loads displaced off the toc reg.  */
  64 #define TOC_LOAD_ADJUSTMENT (-32768)
  65 #define TOC_SECTION_NAME ".private.toc"
  66
  67 /* The main body of code is in coffcode.h.  */
  68 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 2
  69
  70 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
  71    from smaller values.  Start with zero, widen, *then* decrement.  */
  72 #define MINUS_ONE       (((bfd_vma)0) - 1)
  73 \f
  74 static reloc_howto_type mcore_coff_howto_table[] =
  75 {
  76   /* Unused: */
  77   HOWTO (IMAGE_REL_MCORE_ABSOLUTE,/* type */
  78          0,                      /* rightshift */
  79          0,                      /* size (0 = byte, 1 = short, 2 = long) */
  80          0,                      /* bitsize */
  81          FALSE,                  /* pc_relative */
  82          0,                      /* bitpos */
  83          complain_overflow_dont, /* dont complain_on_overflow */
  84          NULL,                   /* special_function */
  85          "ABSOLUTE",             /* name */
  86          FALSE,                  /* partial_inplace */
  87          0x00,                   /* src_mask */
  88          0x00,                   /* dst_mask */
  89          FALSE),                 /* pcrel_offset */
  90
  91   HOWTO (IMAGE_REL_MCORE_ADDR32,/* type */
  92          0,                     /* rightshift */
  93          2,                     /* size (0 = byte, 1 = short, 2 = long) */
  94          32,                    /* bitsize */
  95          FALSE,                 /* pc_relative */
  96          0,                     /* bitpos */
  97          complain_overflow_bitfield, /* complain_on_overflow */
  98          NULL,                  /* special_function */
  99          "ADDR32",              /* name */
 100          TRUE,                  /* partial_inplace */
 101          0xffffffff,            /* src_mask */
 102          0xffffffff,            /* dst_mask */
 103          FALSE),                /* pcrel_offset */
 104
 105   /* 8 bits + 2 zero bits; jmpi/jsri/lrw instructions.
 106      Should not appear in object files.  */
 107   HOWTO (IMAGE_REL_MCORE_PCREL_IMM8BY4, /* type */
 108          2,                     /* rightshift */
 109          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 110          8,                     /* bitsize */
 111          TRUE,                  /* pc_relative */
 112          0,                     /* bitpos */
 113          complain_overflow_bitfield, /* complain_on_overflow */
 114          mcore_coff_unsupported_reloc, /* special_function */
 115          "IMM8BY4",             /* name */
 116          FALSE,                 /* partial_inplace */
 117          0,                     /* src_mask */
 118          0,                     /* dst_mask */
 119          TRUE),                 /* pcrel_offset */
 120
 121   /* bsr/bt/bf/br instructions; 11 bits + 1 zero bit
 122      Span 2k instructions == 4k bytes.
 123      Only useful pieces at the relocated address are the opcode (5 bits) */
 124   HOWTO (IMAGE_REL_MCORE_PCREL_IMM11BY2,/* type */
 125          1,                     /* rightshift */
 126          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 127          11,                    /* bitsize */
 128          TRUE,                  /* pc_relative */
 129          0,                     /* bitpos */
 130          complain_overflow_signed, /* complain_on_overflow */
 131          NULL,                  /* special_function */
 132          "IMM11BY2",            /* name */
 133          FALSE,                 /* partial_inplace */
 134          0x0,                   /* src_mask */
 135          0x7ff,                 /* dst_mask */
 136          TRUE),                 /* pcrel_offset */
 137
 138   /* 4 bits + 1 zero bit; 'loopt' instruction only; unsupported.  */
 139   HOWTO (IMAGE_REL_MCORE_PCREL_IMM4BY2, /* type */
 140          1,                     /* rightshift */
 141          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 142          4,                     /* bitsize */
 143          TRUE,                  /* pc_relative */
 144          0,                     /* bitpos */
 145          complain_overflow_bitfield, /* complain_on_overflow */
 146          mcore_coff_unsupported_reloc, /* special_function */
 147          "IMM4BY2",              /* name */
 148          FALSE,                 /* partial_inplace */
 149          0,                     /* src_mask */
 150          0,                     /* dst_mask */
 151          TRUE),                 /* pcrel_offset */
 152
 153   /* 32-bit pc-relative. Eventually this will help support PIC code.  */
 154   HOWTO (IMAGE_REL_MCORE_PCREL_32,/* type */
 155          0,                     /* rightshift */
 156          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 157          32,                    /* bitsize */
 158          TRUE,                  /* pc_relative */
 159          0,                     /* bitpos */
 160          complain_overflow_bitfield, /* complain_on_overflow */
 161          NULL,                  /* special_function */
 162          "PCREL_32",            /* name */
 163          FALSE,                 /* partial_inplace */
 164          0x0,                   /* src_mask */
 165          0xffffffff,            /* dst_mask */
 166          TRUE),                 /* pcrel_offset */
 167
 168   /* Like PCREL_IMM11BY2, this relocation indicates that there is a
 169      'jsri' at the specified address. There is a separate relocation
 170      entry for the literal pool entry that it references, but we
 171      might be able to change the jsri to a bsr if the target turns out
 172      to be close enough [even though we won't reclaim the literal pool
 173      entry, we'll get some runtime efficiency back]. Note that this
 174      is a relocation that we are allowed to safely ignore.  */
 175   HOWTO (IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2,/* type */
 176          1,                     /* rightshift */
 177          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 178          11,                    /* bitsize */
 179          TRUE,                  /* pc_relative */
 180          0,                     /* bitpos */
 181          complain_overflow_signed, /* complain_on_overflow */
 182          NULL,                  /* special_function */
 183          "JSR_IMM11BY2",        /* name */
 184          FALSE,                 /* partial_inplace */
 185          0x0,                   /* src_mask */
 186          0x7ff,                 /* dst_mask */
 187          TRUE),                 /* pcrel_offset */
 188
 189   HOWTO (IMAGE_REL_MCORE_RVA,   /* type */
 190          0,                     /* rightshift */
 191          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 192          32,                    /* bitsize */
 193          FALSE,                 /* pc_relative */
 194          0,                     /* bitpos */
 195          complain_overflow_signed, /* complain_on_overflow */
 196          NULL,                  /* special_function */
 197          "MCORE_RVA",           /* name */
 198          TRUE,                  /* partial_inplace */
 199          0xffffffff,            /* src_mask */
 200          0xffffffff,            /* dst_mask */
 201          TRUE)                  /* pcrel_offset */
 202 };
 203 \f
 204 /* Extend the coff_link_hash_table structure with a few M*Core specific fields.
 205    This allows us to store global data here without actually creating any
 206    global variables, which is a no-no in the BFD world.  */
 207 typedef struct coff_mcore_link_hash_table
 208 {
 209   /* The original coff_link_hash_table structure.  MUST be first field.  */
 210   struct coff_link_hash_table   root;
 211
 212   bfd *                         bfd_of_toc_owner;
 213   long int                      global_toc_size;
 214   long int                      import_table_size;
 215   long int                      first_thunk_address;
 216   long int                      thunk_size;
 217 }
 218 mcore_hash_table;
 219
 220 /* Get the MCore coff linker hash table from a link_info structure.  */
 221 #define coff_mcore_hash_table(info) \
 222   ((mcore_hash_table *) ((info)->hash))
 223
 224 #if 0
 225 /* Create an MCore coff linker hash table.  */
 226
 227 static struct bfd_link_hash_table *
 228 coff_mcore_link_hash_table_create (abfd)
 229      bfd * abfd;
 230 {
 231   mcore_hash_table * ret;
 232
 233   ret = (mcore_hash_table *) bfd_malloc ((bfd_size_type) sizeof (* ret));
 234   if (ret == (mcore_hash_table *) NULL)
 235     return NULL;
 236
 237   if (! _bfd_coff_link_hash_table_init
 238       (& ret->root, abfd, _bfd_coff_link_hash_newfunc))
 239     {
 240       free (ret);
 241       return (struct bfd_link_hash_table *) NULL;
 242     }
 243
 244   ret->bfd_of_toc_owner = NULL;
 245   ret->global_toc_size  = 0;
 246   ret->import_table_size = 0;
 247   ret->first_thunk_address = 0;
 248   ret->thunk_size = 0;
 249
 250   return & ret->root.root;
 251 }
 252 #endif
 253 \f
 254 /* Add an entry to the base file.  */
 255
 256 static void
 257 mcore_emit_base_file_entry (info, output_bfd, input_section, reloc_offset)
 258       struct bfd_link_info * info;
 259       bfd *                  output_bfd;
 260       asection *             input_section;
 261       bfd_vma                reloc_offset;
 262 {
 263   bfd_vma addr = reloc_offset
 264                  - input_section->vma
 265                  + input_section->output_offset
 266                  + input_section->output_section->vma;
 267
 268   if (coff_data (output_bfd)->pe)
 269      addr -= pe_data (output_bfd)->pe_opthdr.ImageBase;
 270
 271   fwrite (&addr, 1, sizeof (addr), (FILE *) info->base_file);
 272 }
 273 \f
 274 static bfd_reloc_status_type
 275 mcore_coff_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
 276                            output_bfd, error_message)
 277      bfd * abfd;
 278      arelent * reloc_entry;
 279      asymbol * symbol ATTRIBUTE_UNUSED;
 280      PTR data ATTRIBUTE_UNUSED;
 281      asection * input_section ATTRIBUTE_UNUSED;
 282      bfd * output_bfd ATTRIBUTE_UNUSED;
 283      char ** error_message ATTRIBUTE_UNUSED;
 284 {
 285   BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0);
 286
 287   _bfd_error_handler (_("%s: Relocation %s (%d) is not currently supported.\n"),
 288                       bfd_archive_filename (abfd),
 289                       reloc_entry->howto->name,
 290                       reloc_entry->howto->type);
 291
 292   return bfd_reloc_notsupported;
 293 }
 294 \f
 295 /* A cheesy little macro to make the code a little more readable.  */
 296 #define HOW2MAP(bfd_rtype, mcore_rtype)  \
 297  case bfd_rtype: return & mcore_coff_howto_table [mcore_rtype]
 298
 299 static reloc_howto_type *
 300 mcore_coff_reloc_type_lookup (abfd, code)
 301      bfd * abfd ATTRIBUTE_UNUSED;
 302      bfd_reloc_code_real_type code;
 303 {
 304   switch (code)
 305     {
 306       HOW2MAP (BFD_RELOC_32,                       IMAGE_REL_MCORE_ADDR32);
 307       HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM8BY4,      IMAGE_REL_MCORE_PCREL_IMM8BY4);
 308       HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM11BY2,     IMAGE_REL_MCORE_PCREL_IMM11BY2);
 309       HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM4BY2,      IMAGE_REL_MCORE_PCREL_IMM4BY2);
 310       HOW2MAP (BFD_RELOC_32_PCREL,                 IMAGE_REL_MCORE_PCREL_32);
 311       HOW2MAP (BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2, IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2);
 312       HOW2MAP (BFD_RELOC_RVA,                      IMAGE_REL_MCORE_RVA);
 313    default:
 314       return NULL;
 315     }
 316   /*NOTREACHED*/
 317 }
 318
 319 #undef HOW2MAP
 320
 321 #define RTYPE2HOWTO(cache_ptr, dst) \
 322   (cache_ptr)->howto = mcore_coff_howto_table + (dst)->r_type;
 323
 324 static reloc_howto_type *
 325 coff_mcore_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
 326      bfd * abfd ATTRIBUTE_UNUSED;
 327      asection * sec;
 328      struct internal_reloc * rel;
 329      struct coff_link_hash_entry * h ATTRIBUTE_UNUSED;
 330      struct internal_syment * sym;
 331      bfd_vma * addendp;
 332 {
 333   reloc_howto_type * howto;
 334
 335   if (rel->r_type >= NUM_ELEM (mcore_coff_howto_table))
 336     return NULL;
 337
 338   howto = mcore_coff_howto_table + rel->r_type;
 339
 340   if (rel->r_type == IMAGE_REL_MCORE_RVA)
 341     * addendp -= pe_data (sec->output_section->owner)->pe_opthdr.ImageBase;
 342
 343   else if (howto->pc_relative)
 344     {
 345       * addendp = sec->vma - 2; /* XXX guess - is this right ? */
 346
 347       /* If the symbol is defined, then the generic code is going to
 348          add back the symbol value in order to cancel out an
 349          adjustment it made to the addend.  However, we set the addend
 350          to 0 at the start of this function.  We need to adjust here,
 351          to avoid the adjustment the generic code will make.  FIXME:
 352          This is getting a bit hackish.  */
 353       if (sym != NULL && sym->n_scnum != 0)
 354         * addendp -= sym->n_value;
 355     }
 356   else
 357     * addendp = 0;
 358
 359   return howto;
 360 }
 361
 362 /* Return TRUE if this relocation should appear in the output .reloc section.
 363    This function is referenced in pe_mkobject in peicode.h.  */
 364
 365 static bfd_boolean
 366 in_reloc_p (abfd, howto)
 367      bfd * abfd ATTRIBUTE_UNUSED;
 368      reloc_howto_type * howto;
 369 {
 370   return ! howto->pc_relative && howto->type != IMAGE_REL_MCORE_RVA;
 371 }
 372 \f
 373 /* The reloc processing routine for the optimized COFF linker.  */
 374 static bfd_boolean
 375 coff_mcore_relocate_section (output_bfd, info, input_bfd, input_section,
 376                            contents, relocs, syms, sections)
 377      bfd * output_bfd;
 378      struct bfd_link_info * info;
 379      bfd * input_bfd;
 380      asection * input_section;
 381      bfd_byte * contents;
 382      struct internal_reloc * relocs;
 383      struct internal_syment * syms;
 384      asection ** sections;
 385 {
 386   struct internal_reloc * rel;
 387   struct internal_reloc * relend;
 388   bfd_boolean hihalf;
 389   bfd_vma hihalf_val;
 390
 391   /* If we are performing a relocatable link, we don't need to do a
 392      thing.  The caller will take care of adjusting the reloc
 393      addresses and symbol indices.  */
 394   if (info->relocatable)
 395     return TRUE;
 396
 397   /* Check if we have the same endianess */
 398   if (   input_bfd->xvec->byteorder != output_bfd->xvec->byteorder
 399       && output_bfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
 400     {
 401       (*_bfd_error_handler)
 402         (_("%s: compiled for a %s system and target is %s.\n"),
 403          bfd_archive_filename (input_bfd),
 404          bfd_big_endian (input_bfd) ? _("big endian") : _("little endian"),
 405          bfd_big_endian (output_bfd) ? _("big endian") : _("little endian"));
 406
 407       bfd_set_error (bfd_error_wrong_format);
 408       return FALSE;
 409     }
 410
 411   hihalf = FALSE;
 412   hihalf_val = 0;
 413
 414   rel = relocs;
 415   relend = rel + input_section->reloc_count;
 416
 417   for (; rel < relend; rel++)
 418     {
 419       long                           symndx;
 420       struct internal_syment *       sym;
 421       bfd_vma                        val;
 422       bfd_vma                        addend;
 423       bfd_reloc_status_type          rstat;
 424       bfd_byte *                     loc;
 425       unsigned short                 r_type = rel->r_type;
 426       reloc_howto_type *             howto = NULL;
 427       struct coff_link_hash_entry *  h;
 428       const char *                   my_name;
 429
 430       symndx = rel->r_symndx;
 431       loc = contents + rel->r_vaddr - input_section->vma;
 432
 433       if (symndx == -1)
 434         {
 435           h = NULL;
 436           sym = NULL;
 437         }
 438       else
 439         {
 440           h = obj_coff_sym_hashes (input_bfd)[symndx];
 441           sym = syms + symndx;
 442         }
 443
 444       addend = 0;
 445
 446       /* Get the howto and initialise the addend.  */
 447       howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
 448                                        sym, & addend);
 449       if (howto == NULL)
 450         return FALSE;
 451
 452       val = 0;
 453
 454       if (h == NULL)
 455         {
 456           if (symndx == -1)
 457             my_name = "*ABS*";
 458           else
 459             {
 460               asection * sec = sections[symndx];
 461
 462               val = (sym->n_value
 463                      + sec->output_section->vma
 464                      + sec->output_offset);
 465
 466               if (sym == NULL)
 467                 my_name = "*unknown*";
 468               else if (   sym->_n._n_n._n_zeroes == 0
 469                        && sym->_n._n_n._n_offset != 0)
 470                 my_name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
 471               else
 472                 {
 473                   static char buf [SYMNMLEN + 1];
 474
 475                   strncpy (buf, sym->_n._n_name, SYMNMLEN);
 476                   buf[SYMNMLEN] = '\0';
 477                   my_name = buf;
 478                 }
 479             }
 480         }
 481       else
 482         {
 483           if (   h->root.type == bfd_link_hash_defined
 484               || h->root.type == bfd_link_hash_defweak)
 485             {
 486               asection * sec = h->root.u.def.section;
 487
 488               val = (h->root.u.def.value
 489                      + sec->output_section->vma
 490                      + sec->output_offset);
 491             }
 492           else
 493             {
 494               if (! ((*info->callbacks->undefined_symbol)
 495                      (info, h->root.root.string, input_bfd, input_section,
 496                       rel->r_vaddr - input_section->vma, TRUE)))
 497                 return FALSE;
 498             }
 499
 500           my_name = h->root.root.string;
 501         }
 502
 503       rstat = bfd_reloc_ok;
 504
 505       /* Each case must do its own relocation, setting rstat appropriately.  */
 506       switch (r_type)
 507         {
 508         default:
 509           _bfd_error_handler (_("%s: unsupported relocation type 0x%02x"),
 510                               bfd_archive_filename (input_bfd), r_type);
 511           bfd_set_error (bfd_error_bad_value);
 512           return FALSE;
 513
 514         case IMAGE_REL_MCORE_ABSOLUTE:
 515           fprintf (stderr,
 516                    _("Warning: unsupported reloc %s <file %s, section %s>\n"),
 517                    howto->name,
 518                    bfd_archive_filename (input_bfd),
 519                    input_section->name);
 520
 521           fprintf (stderr,"sym %ld (%s), r_vaddr %ld (%lx)\n",
 522                    rel->r_symndx, my_name, (long) rel->r_vaddr,
 523                    (unsigned long) rel->r_vaddr);
 524           break;
 525
 526         case IMAGE_REL_MCORE_PCREL_IMM8BY4:
 527         case IMAGE_REL_MCORE_PCREL_IMM11BY2:
 528         case IMAGE_REL_MCORE_PCREL_IMM4BY2:
 529         case IMAGE_REL_MCORE_PCREL_32:
 530         case IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2:
 531         case IMAGE_REL_MCORE_ADDR32:
 532           /* XXX fixme - shouldn't this be like the code for the RVA reloc ? */
 533           rstat = _bfd_relocate_contents (howto, input_bfd, val, loc);
 534           break;
 535
 536         case IMAGE_REL_MCORE_RVA:
 537           rstat = _bfd_final_link_relocate
 538             (howto, input_bfd,
 539              input_section, contents, rel->r_vaddr - input_section->vma,
 540              val, addend);
 541           break;
 542         }
 543
 544       if (info->base_file)
 545         {
 546           /* Emit a reloc if the backend thinks it needs it.  */
 547           if (sym && pe_data (output_bfd)->in_reloc_p (output_bfd, howto))
 548             mcore_emit_base_file_entry (info, output_bfd, input_section, rel->r_vaddr);
 549         }
 550
 551       switch (rstat)
 552         {
 553         default:
 554           abort ();
 555
 556         case bfd_reloc_ok:
 557           break;
 558
 559         case bfd_reloc_overflow:
 560           if (! ((*info->callbacks->reloc_overflow)
 561                  (info, my_name, howto->name,
 562                   (bfd_vma) 0, input_bfd,
 563                   input_section, rel->r_vaddr - input_section->vma)))
 564             return FALSE;
 565         }
 566     }
 567
 568   return TRUE;
 569 }
 570 \f
 571 /* Tailor coffcode.h -- macro heaven.  */
 572
 573 /* We use the special COFF backend linker, with our own special touch.  */
 574
 575 #define coff_bfd_reloc_type_lookup   mcore_coff_reloc_type_lookup
 576 #define coff_relocate_section        coff_mcore_relocate_section
 577 #define coff_rtype_to_howto          coff_mcore_rtype_to_howto
 578
 579 #define SELECT_RELOC(internal, howto) {internal.r_type = howto->type;}
 580
 581 /* Make sure that the 'r_offset' field is copied properly
 582    so that identical binaries will compare the same.  */
 583 #define SWAP_IN_RELOC_OFFSET         H_GET_32
 584 #define SWAP_OUT_RELOC_OFFSET        H_PUT_32
 585
 586 #define COFF_PAGE_SIZE               0x1000
 587
 588 #include "coffcode.h"
 589 \f
 590 /* Forward declaration to initialise alternative_target field.  */
 591 extern const bfd_target TARGET_LITTLE_SYM;
 592
 593 /* The transfer vectors that lead the outside world to all of the above.  */
 594 CREATE_BIG_COFF_TARGET_VEC (TARGET_BIG_SYM, TARGET_BIG_NAME, D_PAGED,
 595                             (SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_READONLY | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
 596                             0, & TARGET_LITTLE_SYM, COFF_SWAP_TABLE)
 597 CREATE_LITTLE_COFF_TARGET_VEC (TARGET_LITTLE_SYM, TARGET_LITTLE_NAME, D_PAGED,
 598                                (SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_READONLY | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
 599                                0, & TARGET_BIG_SYM, COFF_SWAP_TABLE)