bfd/coff-mcore.c

   1 /* BFD back-end for Motorolla MCore COFF/PE
   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, 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 boolean mcore_bfd_coff_final_link
  41   PARAMS ((bfd *, struct bfd_link_info *));
  42
  43 static struct bfd_link_hash_table * coff_mcore_link_hash_table_create
  44   PARAMS ((bfd *));
  45 static bfd_reloc_status_type        mcore_coff_unsupported_reloc
  46   PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
  47 static boolean                      coff_mcore_relocate_section
  48   PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
  49            struct internal_reloc *, struct internal_syment *, asection **));
  50 static reloc_howto_type *           mcore_coff_reloc_type_lookup
  51   PARAMS ((bfd *, bfd_reloc_code_real_type));
  52 static reloc_howto_type *           coff_mcore_rtype_to_howto
  53   PARAMS ((bfd *, asection *, struct internal_reloc *,
  54            struct coff_link_hash_entry *, struct internal_syment *, bfd_vma *));
  55 static const bfd_target *           pe_object_p
  56   PARAMS ((bfd *));
  57
  58
  59 \f
  60 /* The NT loader points the toc register to &toc + 32768, in order to
  61    use the complete range of a 16-bit displacement. We have to adjust
  62    for this when we fix up loads displaced off the toc reg.  */
  63 #define TOC_LOAD_ADJUSTMENT (-32768)
  64 #define TOC_SECTION_NAME ".private.toc"
  65
  66 /* The main body of code is in coffcode.h.  */
  67 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3)
  68
  69 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
  70    from smaller values.  Start with zero, widen, *then* decrement.  */
  71 #define MINUS_ONE       (((bfd_vma)0) - 1)
  72
  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 /* Create an MCore coff linker hash table.  */
 225 static struct bfd_link_hash_table *
 226 coff_mcore_link_hash_table_create (abfd)
 227      bfd * abfd;
 228 {
 229   mcore_hash_table * ret;
 230
 231   ret = ((mcore_hash_table *) bfd_alloc (abfd, sizeof (* ret)));
 232   if (ret == (mcore_hash_table *) NULL)
 233     return NULL;
 234
 235   if (! _bfd_coff_link_hash_table_init
 236       (& ret->root, abfd, _bfd_coff_link_hash_newfunc))
 237     {
 238       bfd_release (abfd, ret);
 239       return (struct bfd_link_hash_table *) NULL;
 240     }
 241
 242   ret->bfd_of_toc_owner = NULL;
 243   ret->global_toc_size  = 0;
 244   ret->import_table_size = 0;
 245   ret->first_thunk_address = 0;
 246   ret->thunk_size = 0;
 247
 248   return & ret->root.root;
 249 }
 250 \f
 251 /* Add an entry to the base file.  */
 252 static void
 253 mcore_emit_base_file_entry (info, output_bfd, input_section, reloc_offset)
 254       struct bfd_link_info * info;
 255       bfd *                  output_bfd;
 256       asection *             input_section;
 257       bfd_vma                reloc_offset;
 258 {
 259   bfd_vma addr = reloc_offset
 260                  - input_section->vma
 261                  + input_section->output_offset
 262                  + input_section->output_section->vma;
 263
 264   if (coff_data (output_bfd)->pe)
 265      addr -= pe_data (output_bfd)->pe_opthdr.ImageBase;
 266
 267   fwrite (&addr, 1, sizeof (addr), (FILE *) info->base_file);
 268 }
 269 \f
 270 /*ARGSUSED*/
 271 static bfd_reloc_status_type
 272 mcore_coff_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
 273                            output_bfd, error_message)
 274      bfd * abfd;
 275      arelent * reloc_entry;
 276      asymbol * symbol ATTRIBUTE_UNUSED;
 277      PTR data ATTRIBUTE_UNUSED;
 278      asection * input_section ATTRIBUTE_UNUSED;
 279      bfd * output_bfd ATTRIBUTE_UNUSED;
 280      char ** error_message ATTRIBUTE_UNUSED;
 281 {
 282   BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0);
 283
 284   _bfd_error_handler (_("%s: Relocation %s (%d) is not currently supported.\n"),
 285                       bfd_get_filename (abfd),
 286                       reloc_entry->howto->name,
 287                       reloc_entry->howto->type);
 288
 289   return bfd_reloc_notsupported;
 290 }
 291
 292 \f
 293 /* A cheesy little macro to make the code a little more readable. */
 294 #define HOW2MAP(bfd_rtype, mcore_rtype)  \
 295  case bfd_rtype: return & mcore_coff_howto_table [mcore_rtype]
 296
 297 static reloc_howto_type *
 298 mcore_coff_reloc_type_lookup (abfd, code)
 299      bfd * abfd ATTRIBUTE_UNUSED;
 300      bfd_reloc_code_real_type code;
 301 {
 302   switch (code)
 303     {
 304       HOW2MAP (BFD_RELOC_32,                       IMAGE_REL_MCORE_ADDR32);
 305       HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM8BY4,      IMAGE_REL_MCORE_PCREL_IMM8BY4);
 306       HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM11BY2,     IMAGE_REL_MCORE_PCREL_IMM11BY2);
 307       HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM4BY2,      IMAGE_REL_MCORE_PCREL_IMM4BY2);
 308       HOW2MAP (BFD_RELOC_32_PCREL,                 IMAGE_REL_MCORE_PCREL_32);
 309       HOW2MAP (BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2, IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2);
 310       HOW2MAP (BFD_RELOC_RVA,                      IMAGE_REL_MCORE_RVA);
 311    default:
 312       return NULL;
 313     }
 314   /*NOTREACHED*/
 315 }
 316
 317 #undef HOW2MAP
 318
 319 #define RTYPE2HOWTO(cache_ptr, dst) \
 320   (cache_ptr)->howto = mcore_coff_howto_table + (dst)->r_type;
 321
 322 static reloc_howto_type *
 323 coff_mcore_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
 324      bfd * abfd ATTRIBUTE_UNUSED;
 325      asection * sec;
 326      struct internal_reloc * rel;
 327      struct coff_link_hash_entry * h ATTRIBUTE_UNUSED;
 328      struct internal_syment * sym;
 329      bfd_vma * addendp;
 330 {
 331   reloc_howto_type * howto;
 332
 333
 334   if (rel->r_type >= NUM_ELEM (mcore_coff_howto_table))
 335     return NULL;
 336
 337   howto = mcore_coff_howto_table + rel->r_type;
 338
 339   if (rel->r_type == IMAGE_REL_MCORE_RVA)
 340     * addendp -= pe_data (sec->output_section->owner)->pe_opthdr.ImageBase;
 341
 342   else if (howto->pc_relative)
 343     {
 344       * addendp = sec->vma - 2; /* XXX guess - is this right ? */
 345
 346       /* If the symbol is defined, then the generic code is going to
 347          add back the symbol value in order to cancel out an
 348          adjustment it made to the addend.  However, we set the addend
 349          to 0 at the start of this function.  We need to adjust here,
 350          to avoid the adjustment the generic code will make.  FIXME:
 351          This is getting a bit hackish.  */
 352       if (sym != NULL && sym->n_scnum != 0)
 353         * addendp -= sym->n_value;
 354     }
 355   else
 356     * addendp = 0;
 357
 358   return howto;
 359 }
 360
 361 /* Return true if this relocation should appear in the output .reloc section.
 362    This function is referenced in pe_mkobject in peicode.h.  */
 363 static boolean
 364 in_reloc_p (abfd, howto)
 365      bfd * abfd ATTRIBUTE_UNUSED;
 366      reloc_howto_type * howto;
 367 {
 368   return ! howto->pc_relative && howto->type != IMAGE_REL_MCORE_RVA;
 369 }
 370
 371 \f
 372 /* The reloc processing routine for the optimized COFF linker.  */
 373 static boolean
 374 coff_mcore_relocate_section (output_bfd, info, input_bfd, input_section,
 375                            contents, relocs, syms, sections)
 376      bfd * output_bfd;
 377      struct bfd_link_info * info;
 378      bfd * input_bfd;
 379      asection * input_section;
 380      bfd_byte * contents;
 381      struct internal_reloc * relocs;
 382      struct internal_syment * syms;
 383      asection ** sections;
 384 {
 385   struct internal_reloc * rel;
 386   struct internal_reloc * relend;
 387   boolean hihalf;
 388   bfd_vma hihalf_val;
 389
 390   /* If we are performing a relocateable link, we don't need to do a
 391      thing.  The caller will take care of adjusting the reloc
 392      addresses and symbol indices.  */
 393   if (info->relocateable)
 394     return true;
 395
 396   /* Check if we have the same endianess */
 397   if (   input_bfd->xvec->byteorder != output_bfd->xvec->byteorder
 398       && output_bfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
 399     {
 400       (*_bfd_error_handler)
 401         (_("%s: compiled for a %s endian system and target is %s endian.\n"),
 402          bfd_get_filename (input_bfd),
 403          bfd_big_endian (input_bfd) ? "big" : "little",
 404          bfd_big_endian (output_bfd) ? "big" : "little");
 405
 406       bfd_set_error (bfd_error_wrong_format);
 407       return false;
 408     }
 409
 410   hihalf = false;
 411   hihalf_val = 0;
 412
 413   rel = relocs;
 414   relend = rel + input_section->reloc_count;
 415
 416   for (; rel < relend; rel++)
 417     {
 418       long                           symndx;
 419       struct internal_syment *       sym;
 420       bfd_vma                        val;
 421       bfd_vma                        addend;
 422       bfd_reloc_status_type          rstat;
 423       bfd_byte *                     loc;
 424       unsigned short                 r_type = rel->r_type;
 425       reloc_howto_type *             howto = NULL;
 426       struct coff_link_hash_entry *  h;
 427       const char *                   my_name;
 428
 429       symndx = rel->r_symndx;
 430       loc = contents + rel->r_vaddr - input_section->vma;
 431
 432       if (symndx == -1)
 433         {
 434           h = NULL;
 435           sym = NULL;
 436         }
 437       else
 438         {
 439           h = obj_coff_sym_hashes (input_bfd)[symndx];
 440           sym = syms + symndx;
 441         }
 442
 443       addend = 0;
 444
 445       /* Get the howto and initialise the addend.  */
 446       howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
 447                                        sym, & addend);
 448       if (howto == NULL)
 449         return false;
 450
 451       val = 0;
 452
 453       if (h == NULL)
 454         {
 455           if (symndx == -1)
 456             my_name = "*ABS*";
 457           else
 458             {
 459               asection * sec = sections[symndx];
 460
 461               val = (sym->n_value
 462                      + sec->output_section->vma
 463                      + sec->output_offset);
 464
 465               if (sym == NULL)
 466                 my_name = "*unknown*";
 467               else if (   sym->_n._n_n._n_zeroes == 0
 468                        && sym->_n._n_n._n_offset != 0)
 469                 my_name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset;
 470               else
 471                 {
 472                   static char buf [SYMNMLEN + 1];
 473
 474                   strncpy (buf, sym->_n._n_name, SYMNMLEN);
 475                   buf[SYMNMLEN] = '\0';
 476                   my_name = buf;
 477                 }
 478             }
 479         }
 480       else
 481         {
 482           if (   h->root.type == bfd_link_hash_defined
 483               || h->root.type == bfd_link_hash_defweak)
 484             {
 485               asection * sec = h->root.u.def.section;
 486
 487               val = (h->root.u.def.value
 488                      + sec->output_section->vma
 489                      + sec->output_offset);
 490             }
 491           else
 492             {
 493               if (! ((*info->callbacks->undefined_symbol)
 494                      (info, h->root.root.string, input_bfd, input_section,
 495                       rel->r_vaddr - input_section->vma)))
 496                 return false;
 497             }
 498
 499           my_name = h->root.root.string;
 500         }
 501
 502       rstat = bfd_reloc_ok;
 503
 504       /* Each case must do its own relocation, setting rstat appropriately.  */
 505       switch (r_type)
 506         {
 507         default:
 508           _bfd_error_handler (_("%s: unsupported relocation type 0x%02x"),
 509                               bfd_get_filename (input_bfd), r_type);
 510           bfd_set_error (bfd_error_bad_value);
 511           return false;
 512
 513         case IMAGE_REL_MCORE_ABSOLUTE:
 514           fprintf (stderr,
 515                    _("Warning: unsupported reloc %s <file %s, section %s>\n"),
 516                    howto->name,
 517                    bfd_get_filename (input_bfd),
 518                    input_section->name);
 519
 520           fprintf (stderr,"sym %ld (%s), r_vaddr %ld (%lx)\n",
 521                    rel->r_symndx, my_name, (long) rel->r_vaddr,
 522                    (unsigned long) rel->r_vaddr);
 523           break;
 524
 525         case IMAGE_REL_MCORE_PCREL_IMM8BY4:
 526         case IMAGE_REL_MCORE_PCREL_IMM11BY2:
 527         case IMAGE_REL_MCORE_PCREL_IMM4BY2:
 528         case IMAGE_REL_MCORE_PCREL_32:
 529         case IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2:
 530         case IMAGE_REL_MCORE_ADDR32:
 531           /* XXX fixme - shouldn't this be like the code for the RVA reloc ? */
 532           rstat = _bfd_relocate_contents (howto, input_bfd, val, loc);
 533           break;
 534
 535         case IMAGE_REL_MCORE_RVA:
 536           rstat = _bfd_final_link_relocate
 537             (howto, input_bfd,
 538              input_section, contents, rel->r_vaddr - input_section->vma,
 539              val, addend);
 540           break;
 541         }
 542
 543       if (info->base_file)
 544         {
 545           /* Emit a reloc if the backend thinks it needs it.  */
 546           if (sym && pe_data (output_bfd)->in_reloc_p (output_bfd, howto))
 547             mcore_emit_base_file_entry (info, output_bfd, input_section, rel->r_vaddr);
 548         }
 549
 550       switch (rstat)
 551         {
 552         default:
 553           abort ();
 554
 555         case bfd_reloc_ok:
 556           break;
 557
 558         case bfd_reloc_overflow:
 559           if (! ((*info->callbacks->reloc_overflow)
 560                  (info, my_name, howto->name,
 561                   (bfd_vma) 0, input_bfd,
 562                   input_section, rel->r_vaddr - input_section->vma)))
 563             return false;
 564         }
 565     }
 566
 567   return true;
 568 }
 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 #define COFF_PAGE_SIZE               0x1000
 582
 583 #include "coffcode.h"
 584 \f
 585 /* Forward declaration to initialise alterbative_target field.  */
 586 extern const bfd_target TARGET_LITTLE_SYM;
 587
 588 /* The transfer vectors that lead the outside world to all of the above. */
 589 CREATE_BIG_COFF_TARGET_VEC (TARGET_BIG_SYM, TARGET_BIG_NAME, D_PAGED, (SEC_LINK_ONCE | SEC_LINK_DUPLICATES), 0, & TARGET_LITTLE_SYM)
 590 CREATE_LITTLE_COFF_TARGET_VEC (TARGET_LITTLE_SYM, TARGET_LITTLE_NAME, D_PAGED, (SEC_LINK_ONCE | SEC_LINK_DUPLICATES), 0, & TARGET_BIG_SYM)