bfd/coff-i386.c

   1 /* BFD back-end for Intel 386 COFF files.
   2    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   3    2000, 2001, 2002, 2003, 2004
   4    Free Software Foundation, Inc.
   5    Written by Cygnus Support.
   6
   7    This file is part of BFD, the Binary File Descriptor library.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  22
  23 #include "bfd.h"
  24 #include "sysdep.h"
  25 #include "libbfd.h"
  26
  27 #include "coff/i386.h"
  28
  29 #include "coff/internal.h"
  30
  31 #ifdef COFF_WITH_PE
  32 #include "coff/pe.h"
  33 #endif
  34
  35 #ifdef COFF_GO32_EXE
  36 #include "coff/go32exe.h"
  37 #endif
  38
  39 #include "libcoff.h"
  40
  41 static bfd_reloc_status_type coff_i386_reloc
  42   PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
  43 static reloc_howto_type *coff_i386_rtype_to_howto
  44   PARAMS ((bfd *, asection *, struct internal_reloc *,
  45            struct coff_link_hash_entry *, struct internal_syment *,
  46            bfd_vma *));
  47 static reloc_howto_type *coff_i386_reloc_type_lookup
  48   PARAMS ((bfd *, bfd_reloc_code_real_type));
  49
  50 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
  51 /* The page size is a guess based on ELF.  */
  52
  53 #define COFF_PAGE_SIZE 0x1000
  54
  55 /* For some reason when using i386 COFF the value stored in the .text
  56    section for a reference to a common symbol is the value itself plus
  57    any desired offset.  Ian Taylor, Cygnus Support.  */
  58
  59 /* If we are producing relocatable output, we need to do some
  60    adjustments to the object file that are not done by the
  61    bfd_perform_relocation function.  This function is called by every
  62    reloc type to make any required adjustments.  */
  63
  64 static bfd_reloc_status_type
  65 coff_i386_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd,
  66                  error_message)
  67      bfd *abfd;
  68      arelent *reloc_entry;
  69      asymbol *symbol;
  70      PTR data;
  71      asection *input_section ATTRIBUTE_UNUSED;
  72      bfd *output_bfd;
  73      char **error_message ATTRIBUTE_UNUSED;
  74 {
  75   symvalue diff;
  76
  77 #ifndef COFF_WITH_PE
  78   if (output_bfd == (bfd *) NULL)
  79     return bfd_reloc_continue;
  80 #endif
  81
  82   if (bfd_is_com_section (symbol->section))
  83     {
  84 #ifndef COFF_WITH_PE
  85       /* We are relocating a common symbol.  The current value in the
  86          object file is ORIG + OFFSET, where ORIG is the value of the
  87          common symbol as seen by the object file when it was compiled
  88          (this may be zero if the symbol was undefined) and OFFSET is
  89          the offset into the common symbol (normally zero, but may be
  90          non-zero when referring to a field in a common structure).
  91          ORIG is the negative of reloc_entry->addend, which is set by
  92          the CALC_ADDEND macro below.  We want to replace the value in
  93          the object file with NEW + OFFSET, where NEW is the value of
  94          the common symbol which we are going to put in the final
  95          object file.  NEW is symbol->value.  */
  96       diff = symbol->value + reloc_entry->addend;
  97 #else
  98       /* In PE mode, we do not offset the common symbol.  */
  99       diff = reloc_entry->addend;
 100 #endif
 101     }
 102   else
 103     {
 104       /* For some reason bfd_perform_relocation always effectively
 105          ignores the addend for a COFF target when producing
 106          relocatable output.  This seems to be always wrong for 386
 107          COFF, so we handle the addend here instead.  */
 108 #ifdef COFF_WITH_PE
 109       if (output_bfd == (bfd *) NULL)
 110         {
 111           reloc_howto_type *howto = reloc_entry->howto;
 112
 113           /* Although PC relative relocations are very similar between
 114              PE and non-PE formats, but they are off by 1 << howto->size
 115              bytes. For the external relocation, PE is very different
 116              from others. See md_apply_fix3 () in gas/config/tc-i386.c.
 117              When we link PE and non-PE object files together to
 118              generate a non-PE executable, we have to compensate it
 119              here.  */
 120           if (howto->pc_relative && howto->pcrel_offset)
 121             diff = -(1 << howto->size);
 122           else if (symbol->flags & BSF_WEAK)
 123             diff = reloc_entry->addend - symbol->value;
 124           else
 125             diff = -reloc_entry->addend;
 126         }
 127       else
 128 #endif
 129         diff = reloc_entry->addend;
 130     }
 131
 132 #ifdef COFF_WITH_PE
 133   /* FIXME: How should this case be handled?  */
 134   if (reloc_entry->howto->type == R_IMAGEBASE
 135       && output_bfd != NULL
 136       && bfd_get_flavour(output_bfd) == bfd_target_coff_flavour)
 137     diff -= pe_data (output_bfd)->pe_opthdr.ImageBase;
 138 #endif
 139
 140 #define DOIT(x) \
 141   x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask))
 142
 143     if (diff != 0)
 144       {
 145         reloc_howto_type *howto = reloc_entry->howto;
 146         unsigned char *addr = (unsigned char *) data + reloc_entry->address;
 147
 148         switch (howto->size)
 149           {
 150           case 0:
 151             {
 152               char x = bfd_get_8 (abfd, addr);
 153               DOIT (x);
 154               bfd_put_8 (abfd, x, addr);
 155             }
 156             break;
 157
 158           case 1:
 159             {
 160               short x = bfd_get_16 (abfd, addr);
 161               DOIT (x);
 162               bfd_put_16 (abfd, (bfd_vma) x, addr);
 163             }
 164             break;
 165
 166           case 2:
 167             {
 168               long x = bfd_get_32 (abfd, addr);
 169               DOIT (x);
 170               bfd_put_32 (abfd, (bfd_vma) x, addr);
 171             }
 172             break;
 173
 174           default:
 175             abort ();
 176           }
 177       }
 178
 179   /* Now let bfd_perform_relocation finish everything up.  */
 180   return bfd_reloc_continue;
 181 }
 182
 183 #ifdef COFF_WITH_PE
 184 /* Return TRUE if this relocation should appear in the output .reloc
 185    section.  */
 186
 187 static bfd_boolean in_reloc_p PARAMS ((bfd *, reloc_howto_type *));
 188
 189 static bfd_boolean in_reloc_p (abfd, howto)
 190      bfd * abfd ATTRIBUTE_UNUSED;
 191      reloc_howto_type *howto;
 192 {
 193   return ! howto->pc_relative && howto->type != R_IMAGEBASE;
 194 }
 195 #endif /* COFF_WITH_PE */
 196
 197 #ifndef PCRELOFFSET
 198 #define PCRELOFFSET FALSE
 199 #endif
 200
 201 static reloc_howto_type howto_table[] =
 202 {
 203   EMPTY_HOWTO (0),
 204   EMPTY_HOWTO (1),
 205   EMPTY_HOWTO (2),
 206   EMPTY_HOWTO (3),
 207   EMPTY_HOWTO (4),
 208   EMPTY_HOWTO (5),
 209   HOWTO (R_DIR32,               /* type */
 210          0,                     /* rightshift */
 211          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 212          32,                    /* bitsize */
 213          FALSE,                 /* pc_relative */
 214          0,                     /* bitpos */
 215          complain_overflow_bitfield, /* complain_on_overflow */
 216          coff_i386_reloc,       /* special_function */
 217          "dir32",               /* name */
 218          TRUE,                  /* partial_inplace */
 219          0xffffffff,            /* src_mask */
 220          0xffffffff,            /* dst_mask */
 221          TRUE),                 /* pcrel_offset */
 222   /* PE IMAGE_REL_I386_DIR32NB relocation (7).  */
 223   HOWTO (R_IMAGEBASE,           /* type */
 224          0,                     /* rightshift */
 225          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 226          32,                    /* bitsize */
 227          FALSE,                 /* pc_relative */
 228          0,                     /* bitpos */
 229          complain_overflow_bitfield, /* complain_on_overflow */
 230          coff_i386_reloc,       /* special_function */
 231          "rva32",               /* name */
 232          TRUE,                  /* partial_inplace */
 233          0xffffffff,            /* src_mask */
 234          0xffffffff,            /* dst_mask */
 235          FALSE),                /* pcrel_offset */
 236   EMPTY_HOWTO (010),
 237   EMPTY_HOWTO (011),
 238   EMPTY_HOWTO (012),
 239 #ifdef COFF_WITH_PE
 240   /* 32-bit longword section relative relocation (013).  */
 241   HOWTO (R_SECREL32,            /* type */
 242          0,                     /* rightshift */
 243          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 244          32,                    /* bitsize */
 245          FALSE,                 /* pc_relative */
 246          0,                     /* bitpos */
 247          complain_overflow_bitfield, /* complain_on_overflow */
 248          coff_i386_reloc,       /* special_function */
 249          "secrel32",            /* name */
 250          TRUE,                  /* partial_inplace */
 251          0xffffffff,            /* src_mask */
 252          0xffffffff,            /* dst_mask */
 253          TRUE),                 /* pcrel_offset */
 254 #else
 255   EMPTY_HOWTO (013),
 256 #endif
 257   EMPTY_HOWTO (014),
 258   EMPTY_HOWTO (015),
 259   EMPTY_HOWTO (016),
 260   /* Byte relocation (017).  */
 261   HOWTO (R_RELBYTE,             /* type */
 262          0,                     /* rightshift */
 263          0,                     /* size (0 = byte, 1 = short, 2 = long) */
 264          8,                     /* bitsize */
 265          FALSE,                 /* pc_relative */
 266          0,                     /* bitpos */
 267          complain_overflow_bitfield, /* complain_on_overflow */
 268          coff_i386_reloc,       /* special_function */
 269          "8",                   /* name */
 270          TRUE,                  /* partial_inplace */
 271          0x000000ff,            /* src_mask */
 272          0x000000ff,            /* dst_mask */
 273          PCRELOFFSET),          /* pcrel_offset */
 274   /* 16-bit word relocation (020).  */
 275   HOWTO (R_RELWORD,             /* type */
 276          0,                     /* rightshift */
 277          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 278          16,                    /* bitsize */
 279          FALSE,                 /* pc_relative */
 280          0,                     /* bitpos */
 281          complain_overflow_bitfield, /* complain_on_overflow */
 282          coff_i386_reloc,       /* special_function */
 283          "16",                  /* name */
 284          TRUE,                  /* partial_inplace */
 285          0x0000ffff,            /* src_mask */
 286          0x0000ffff,            /* dst_mask */
 287          PCRELOFFSET),          /* pcrel_offset */
 288   /* 32-bit longword relocation (021).  */
 289   HOWTO (R_RELLONG,             /* type */
 290          0,                     /* rightshift */
 291          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 292          32,                    /* bitsize */
 293          FALSE,                 /* pc_relative */
 294          0,                     /* bitpos */
 295          complain_overflow_bitfield, /* complain_on_overflow */
 296          coff_i386_reloc,       /* special_function */
 297          "32",                  /* name */
 298          TRUE,                  /* partial_inplace */
 299          0xffffffff,            /* src_mask */
 300          0xffffffff,            /* dst_mask */
 301          PCRELOFFSET),          /* pcrel_offset */
 302   /* Byte PC relative relocation (022).  */
 303   HOWTO (R_PCRBYTE,             /* type */
 304          0,                     /* rightshift */
 305          0,                     /* size (0 = byte, 1 = short, 2 = long) */
 306          8,                     /* bitsize */
 307          TRUE,                  /* pc_relative */
 308          0,                     /* bitpos */
 309          complain_overflow_signed, /* complain_on_overflow */
 310          coff_i386_reloc,       /* special_function */
 311          "DISP8",               /* name */
 312          TRUE,                  /* partial_inplace */
 313          0x000000ff,            /* src_mask */
 314          0x000000ff,            /* dst_mask */
 315          PCRELOFFSET),          /* pcrel_offset */
 316   /* 16-bit word PC relative relocation (023).  */
 317   HOWTO (R_PCRWORD,             /* type */
 318          0,                     /* rightshift */
 319          1,                     /* size (0 = byte, 1 = short, 2 = long) */
 320          16,                    /* bitsize */
 321          TRUE,                  /* pc_relative */
 322          0,                     /* bitpos */
 323          complain_overflow_signed, /* complain_on_overflow */
 324          coff_i386_reloc,       /* special_function */
 325          "DISP16",              /* name */
 326          TRUE,                  /* partial_inplace */
 327          0x0000ffff,            /* src_mask */
 328          0x0000ffff,            /* dst_mask */
 329          PCRELOFFSET),          /* pcrel_offset */
 330   /* 32-bit longword PC relative relocation (024).  */
 331   HOWTO (R_PCRLONG,             /* type */
 332          0,                     /* rightshift */
 333          2,                     /* size (0 = byte, 1 = short, 2 = long) */
 334          32,                    /* bitsize */
 335          TRUE,                  /* pc_relative */
 336          0,                     /* bitpos */
 337          complain_overflow_signed, /* complain_on_overflow */
 338          coff_i386_reloc,       /* special_function */
 339          "DISP32",              /* name */
 340          TRUE,                  /* partial_inplace */
 341          0xffffffff,            /* src_mask */
 342          0xffffffff,            /* dst_mask */
 343          PCRELOFFSET)           /* pcrel_offset */
 344 };
 345
 346 /* Turn a howto into a reloc  nunmber */
 347
 348 #define SELECT_RELOC(x,howto) { x.r_type = howto->type; }
 349 #define BADMAG(x) I386BADMAG(x)
 350 #define I386 1                  /* Customize coffcode.h */
 351
 352 #define RTYPE2HOWTO(cache_ptr, dst)                                     \
 353   ((cache_ptr)->howto =                                                 \
 354    ((dst)->r_type < sizeof (howto_table) / sizeof (howto_table[0])      \
 355     ? howto_table + (dst)->r_type                                       \
 356     : NULL))
 357
 358 /* For 386 COFF a STYP_NOLOAD | STYP_BSS section is part of a shared
 359    library.  On some other COFF targets STYP_BSS is normally
 360    STYP_NOLOAD.  */
 361 #define BSS_NOLOAD_IS_SHARED_LIBRARY
 362
 363 /* Compute the addend of a reloc.  If the reloc is to a common symbol,
 364    the object file contains the value of the common symbol.  By the
 365    time this is called, the linker may be using a different symbol
 366    from a different object file with a different value.  Therefore, we
 367    hack wildly to locate the original symbol from this file so that we
 368    can make the correct adjustment.  This macro sets coffsym to the
 369    symbol from the original file, and uses it to set the addend value
 370    correctly.  If this is not a common symbol, the usual addend
 371    calculation is done, except that an additional tweak is needed for
 372    PC relative relocs.
 373    FIXME: This macro refers to symbols and asect; these are from the
 374    calling function, not the macro arguments.  */
 375
 376 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr)                \
 377   {                                                             \
 378     coff_symbol_type *coffsym = (coff_symbol_type *) NULL;      \
 379     if (ptr && bfd_asymbol_bfd (ptr) != abfd)                   \
 380       coffsym = (obj_symbols (abfd)                             \
 381                  + (cache_ptr->sym_ptr_ptr - symbols));         \
 382     else if (ptr)                                               \
 383       coffsym = coff_symbol_from (abfd, ptr);                   \
 384     if (coffsym != (coff_symbol_type *) NULL                    \
 385         && coffsym->native->u.syment.n_scnum == 0)              \
 386       cache_ptr->addend = - coffsym->native->u.syment.n_value;  \
 387     else if (ptr && bfd_asymbol_bfd (ptr) == abfd               \
 388              && ptr->section != (asection *) NULL)              \
 389       cache_ptr->addend = - (ptr->section->vma + ptr->value);   \
 390     else                                                        \
 391       cache_ptr->addend = 0;                                    \
 392     if (ptr && howto_table[reloc.r_type].pc_relative)           \
 393       cache_ptr->addend += asect->vma;                          \
 394   }
 395
 396 /* We use the special COFF backend linker.  For normal i386 COFF, we
 397    can use the generic relocate_section routine.  For PE, we need our
 398    own routine.  */
 399
 400 #ifndef COFF_WITH_PE
 401
 402 #define coff_relocate_section _bfd_coff_generic_relocate_section
 403
 404 #else /* COFF_WITH_PE */
 405
 406 /* The PE relocate section routine.  The only difference between this
 407    and the regular routine is that we don't want to do anything for a
 408    relocatable link.  */
 409
 410 static bfd_boolean coff_pe_i386_relocate_section
 411   PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
 412            struct internal_reloc *, struct internal_syment *, asection **));
 413
 414 static bfd_boolean
 415 coff_pe_i386_relocate_section (output_bfd, info, input_bfd,
 416                                input_section, contents, relocs, syms,
 417                                sections)
 418      bfd *output_bfd;
 419      struct bfd_link_info *info;
 420      bfd *input_bfd;
 421      asection *input_section;
 422      bfd_byte *contents;
 423      struct internal_reloc *relocs;
 424      struct internal_syment *syms;
 425      asection **sections;
 426 {
 427   if (info->relocatable)
 428     return TRUE;
 429
 430   return _bfd_coff_generic_relocate_section (output_bfd, info, input_bfd,
 431                                              input_section, contents,
 432                                              relocs, syms, sections);
 433 }
 434
 435 #define coff_relocate_section coff_pe_i386_relocate_section
 436
 437 #endif /* COFF_WITH_PE */
 438
 439 /* Convert an rtype to howto for the COFF backend linker.  */
 440
 441 static reloc_howto_type *
 442 coff_i386_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
 443      bfd *abfd ATTRIBUTE_UNUSED;
 444      asection *sec;
 445      struct internal_reloc *rel;
 446      struct coff_link_hash_entry *h;
 447      struct internal_syment *sym;
 448      bfd_vma *addendp;
 449 {
 450   reloc_howto_type *howto;
 451
 452   if (rel->r_type > sizeof (howto_table) / sizeof (howto_table[0]))
 453     {
 454       bfd_set_error (bfd_error_bad_value);
 455       return NULL;
 456     }
 457
 458   howto = howto_table + rel->r_type;
 459
 460 #ifdef COFF_WITH_PE
 461   /* Cancel out code in _bfd_coff_generic_relocate_section.  */
 462   *addendp = 0;
 463 #endif
 464
 465   if (howto->pc_relative)
 466     *addendp += sec->vma;
 467
 468   if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0)
 469     {
 470       /* This is a common symbol.  The section contents include the
 471          size (sym->n_value) as an addend.  The relocate_section
 472          function will be adding in the final value of the symbol.  We
 473          need to subtract out the current size in order to get the
 474          correct result.  */
 475
 476       BFD_ASSERT (h != NULL);
 477
 478 #ifndef COFF_WITH_PE
 479       /* I think we *do* want to bypass this.  If we don't, I have
 480          seen some data parameters get the wrong relocation address.
 481          If I link two versions with and without this section bypassed
 482          and then do a binary comparison, the addresses which are
 483          different can be looked up in the map.  The case in which
 484          this section has been bypassed has addresses which correspond
 485          to values I can find in the map.  */
 486       *addendp -= sym->n_value;
 487 #endif
 488     }
 489
 490 #ifndef COFF_WITH_PE
 491   /* If the output symbol is common (in which case this must be a
 492      relocatable link), we need to add in the final size of the
 493      common symbol.  */
 494   if (h != NULL && h->root.type == bfd_link_hash_common)
 495     *addendp += h->root.u.c.size;
 496 #endif
 497
 498 #ifdef COFF_WITH_PE
 499   if (howto->pc_relative)
 500     {
 501       *addendp -= 4;
 502
 503       /* If the symbol is defined, then the generic code is going to
 504          add back the symbol value in order to cancel out an
 505          adjustment it made to the addend.  However, we set the addend
 506          to 0 at the start of this function.  We need to adjust here,
 507          to avoid the adjustment the generic code will make.  FIXME:
 508          This is getting a bit hackish.  */
 509       if (sym != NULL && sym->n_scnum != 0)
 510         *addendp -= sym->n_value;
 511     }
 512
 513   if (rel->r_type == R_IMAGEBASE
 514       && (bfd_get_flavour(sec->output_section->owner)
 515           == bfd_target_coff_flavour))
 516     {
 517       *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
 518     }
 519
 520   if (rel->r_type == R_SECREL32)
 521     {
 522       bfd_vma osect_vma;
 523
 524       if (h && (h->type == bfd_link_hash_defined
 525                 || h->type == bfd_link_hash_defweak))
 526         osect_vma = h->root.u.def.section->output_section->vma;
 527       else
 528         {
 529           asection *sec;
 530           int i;
 531
 532           /* Sigh, the only way to get the section to offset against
 533              is to find it the hard way.  */
 534
 535           for (sec = abfd->sections, i = 1; i < sym->n_scnum; i++)
 536             sec = sec->next;
 537
 538           osect_vma = sec->output_section->vma;
 539         }
 540
 541       *addendp -= osect_vma;
 542     }
 543 #endif
 544
 545   return howto;
 546 }
 547
 548 #define coff_bfd_reloc_type_lookup coff_i386_reloc_type_lookup
 549
 550 static reloc_howto_type *
 551 coff_i386_reloc_type_lookup (abfd, code)
 552      bfd *abfd ATTRIBUTE_UNUSED;
 553      bfd_reloc_code_real_type code;
 554 {
 555   switch (code)
 556     {
 557     case BFD_RELOC_RVA:
 558       return howto_table + R_IMAGEBASE;
 559     case BFD_RELOC_32:
 560       return howto_table + R_DIR32;
 561     case BFD_RELOC_32_PCREL:
 562       return howto_table + R_PCRLONG;
 563     case BFD_RELOC_16:
 564       return howto_table + R_RELWORD;
 565     case BFD_RELOC_16_PCREL:
 566       return howto_table + R_PCRWORD;
 567     case BFD_RELOC_8:
 568       return howto_table + R_RELBYTE;
 569     case BFD_RELOC_8_PCREL:
 570       return howto_table + R_PCRBYTE;
 571 #ifdef COFF_WITH_PE
 572     case BFD_RELOC_32_SECREL:
 573       return howto_table + R_SECREL32;
 574 #endif
 575     default:
 576       BFD_FAIL ();
 577       return 0;
 578     }
 579 }
 580
 581 #define coff_rtype_to_howto coff_i386_rtype_to_howto
 582
 583 #ifdef TARGET_UNDERSCORE
 584
 585 /* If i386 gcc uses underscores for symbol names, then it does not use
 586    a leading dot for local labels, so if TARGET_UNDERSCORE is defined
 587    we treat all symbols starting with L as local.  */
 588
 589 static bfd_boolean coff_i386_is_local_label_name
 590   PARAMS ((bfd *, const char *));
 591
 592 static bfd_boolean
 593 coff_i386_is_local_label_name (abfd, name)
 594      bfd *abfd;
 595      const char *name;
 596 {
 597   if (name[0] == 'L')
 598     return TRUE;
 599
 600   return _bfd_coff_is_local_label_name (abfd, name);
 601 }
 602
 603 #define coff_bfd_is_local_label_name coff_i386_is_local_label_name
 604
 605 #endif /* TARGET_UNDERSCORE */
 606
 607 #include "coffcode.h"
 608
 609 const bfd_target
 610 #ifdef TARGET_SYM
 611   TARGET_SYM =
 612 #else
 613   i386coff_vec =
 614 #endif
 615 {
 616 #ifdef TARGET_NAME
 617   TARGET_NAME,
 618 #else
 619   "coff-i386",                  /* name */
 620 #endif
 621   bfd_target_coff_flavour,
 622   BFD_ENDIAN_LITTLE,            /* data byte order is little */
 623   BFD_ENDIAN_LITTLE,            /* header byte order is little */
 624
 625   (HAS_RELOC | EXEC_P |         /* object flags */
 626    HAS_LINENO | HAS_DEBUG |
 627    HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
 628
 629   (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
 630 #ifdef COFF_WITH_PE
 631    | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY
 632 #endif
 633    | SEC_CODE | SEC_DATA),
 634
 635 #ifdef TARGET_UNDERSCORE
 636   TARGET_UNDERSCORE,            /* leading underscore */
 637 #else
 638   0,                            /* leading underscore */
 639 #endif
 640   '/',                          /* ar_pad_char */
 641   15,                           /* ar_max_namelen */
 642
 643   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 644      bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 645      bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
 646   bfd_getl64, bfd_getl_signed_64, bfd_putl64,
 647      bfd_getl32, bfd_getl_signed_32, bfd_putl32,
 648      bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
 649
 650 /* Note that we allow an object file to be treated as a core file as well.  */
 651     {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
 652        bfd_generic_archive_p, coff_object_p},
 653     {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
 654        bfd_false},
 655     {bfd_false, coff_write_object_contents, /* bfd_write_contents */
 656        _bfd_write_archive_contents, bfd_false},
 657
 658      BFD_JUMP_TABLE_GENERIC (coff),
 659      BFD_JUMP_TABLE_COPY (coff),
 660      BFD_JUMP_TABLE_CORE (_bfd_nocore),
 661      BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
 662      BFD_JUMP_TABLE_SYMBOLS (coff),
 663      BFD_JUMP_TABLE_RELOCS (coff),
 664      BFD_JUMP_TABLE_WRITE (coff),
 665      BFD_JUMP_TABLE_LINK (coff),
 666      BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
 667
 668   NULL,
 669
 670   COFF_SWAP_TABLE
 671 };