bfd/peicode.h

   1 /* Support for the generic parts of PE/PEI, for BFD.
   2    Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
   3    Free Software Foundation, Inc.
   4    Written by Cygnus Solutions.
   5
   6    This file is part of BFD, the Binary File Descriptor library.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  21
  22 /* Most of this hacked by  Steve Chamberlain,
  23                         sac@cygnus.com
  24
  25    PE/PEI rearrangement (and code added): Donn Terry
  26                                        Softway Systems, Inc.  */
  27
  28 /* Hey look, some documentation [and in a place you expect to find it]!
  29
  30    The main reference for the pei format is "Microsoft Portable Executable
  31    and Common Object File Format Specification 4.1".  Get it if you need to
  32    do some serious hacking on this code.
  33
  34    Another reference:
  35    "Peering Inside the PE: A Tour of the Win32 Portable Executable
  36    File Format", MSJ 1994, Volume 9.
  37
  38    The *sole* difference between the pe format and the pei format is that the
  39    latter has an MSDOS 2.0 .exe header on the front that prints the message
  40    "This app must be run under Windows." (or some such).
  41    (FIXME: Whether that statement is *really* true or not is unknown.
  42    Are there more subtle differences between pe and pei formats?
  43    For now assume there aren't.  If you find one, then for God sakes
  44    document it here!)
  45
  46    The Microsoft docs use the word "image" instead of "executable" because
  47    the former can also refer to a DLL (shared library).  Confusion can arise
  48    because the `i' in `pei' also refers to "image".  The `pe' format can
  49    also create images (i.e. executables), it's just that to run on a win32
  50    system you need to use the pei format.
  51
  52    FIXME: Please add more docs here so the next poor fool that has to hack
  53    on this code has a chance of getting something accomplished without
  54    wasting too much time.  */
  55
  56 #include "libpei.h"
  57
  58 static bfd_boolean (*pe_saved_coff_bfd_print_private_bfd_data)
  59     PARAMS ((bfd *, PTR)) =
  60 #ifndef coff_bfd_print_private_bfd_data
  61      NULL;
  62 #else
  63      coff_bfd_print_private_bfd_data;
  64 #undef coff_bfd_print_private_bfd_data
  65 #endif
  66
  67 static bfd_boolean pe_print_private_bfd_data PARAMS ((bfd *, PTR));
  68 #define coff_bfd_print_private_bfd_data pe_print_private_bfd_data
  69
  70 static bfd_boolean (*pe_saved_coff_bfd_copy_private_bfd_data)
  71     PARAMS ((bfd *, bfd *)) =
  72 #ifndef coff_bfd_copy_private_bfd_data
  73      NULL;
  74 #else
  75      coff_bfd_copy_private_bfd_data;
  76 #undef coff_bfd_copy_private_bfd_data
  77 #endif
  78
  79 static bfd_boolean pe_bfd_copy_private_bfd_data PARAMS ((bfd *, bfd *));
  80 #define coff_bfd_copy_private_bfd_data pe_bfd_copy_private_bfd_data
  81
  82 #define coff_mkobject      pe_mkobject
  83 #define coff_mkobject_hook pe_mkobject_hook
  84
  85 #ifndef NO_COFF_RELOCS
  86 static void coff_swap_reloc_in PARAMS ((bfd *, PTR, PTR));
  87 static unsigned int coff_swap_reloc_out PARAMS ((bfd *, PTR, PTR));
  88 #endif
  89 static void coff_swap_filehdr_in PARAMS ((bfd *, PTR, PTR));
  90 static void coff_swap_scnhdr_in PARAMS ((bfd *, PTR, PTR));
  91 static bfd_boolean pe_mkobject PARAMS ((bfd *));
  92 static PTR pe_mkobject_hook PARAMS ((bfd *, PTR, PTR));
  93
  94 #ifdef COFF_IMAGE_WITH_PE
  95 /* This structure contains static variables used by the ILF code.  */
  96 typedef asection * asection_ptr;
  97
  98 typedef struct
  99 {
 100   bfd *                 abfd;
 101   bfd_byte *            data;
 102   struct bfd_in_memory * bim;
 103   unsigned short        magic;
 104
 105   arelent *             reltab;
 106   unsigned int          relcount;
 107
 108   coff_symbol_type *    sym_cache;
 109   coff_symbol_type *    sym_ptr;
 110   unsigned int          sym_index;
 111
 112   unsigned int *        sym_table;
 113   unsigned int *        table_ptr;
 114
 115   combined_entry_type * native_syms;
 116   combined_entry_type * native_ptr;
 117
 118   coff_symbol_type **   sym_ptr_table;
 119   coff_symbol_type **   sym_ptr_ptr;
 120
 121   unsigned int          sec_index;
 122
 123   char *                string_table;
 124   char *                string_ptr;
 125   char *                end_string_ptr;
 126
 127   SYMENT *              esym_table;
 128   SYMENT *              esym_ptr;
 129
 130   struct internal_reloc * int_reltab;
 131 }
 132 pe_ILF_vars;
 133
 134 static asection_ptr       pe_ILF_make_a_section   PARAMS ((pe_ILF_vars *, const char *, unsigned int, flagword));
 135 static void               pe_ILF_make_a_reloc     PARAMS ((pe_ILF_vars *, bfd_vma, bfd_reloc_code_real_type, asection_ptr));
 136 static void               pe_ILF_make_a_symbol    PARAMS ((pe_ILF_vars *, const char *, const char *, asection_ptr, flagword));
 137 static void               pe_ILF_save_relocs      PARAMS ((pe_ILF_vars *, asection_ptr));
 138 static void               pe_ILF_make_a_symbol_reloc  PARAMS ((pe_ILF_vars *, bfd_vma, bfd_reloc_code_real_type, struct bfd_symbol **, unsigned int));
 139 static bfd_boolean        pe_ILF_build_a_bfd      PARAMS ((bfd *, unsigned int, bfd_byte *, bfd_byte *, unsigned int, unsigned int));
 140 static const bfd_target * pe_ILF_object_p         PARAMS ((bfd *));
 141 static const bfd_target * pe_bfd_object_p         PARAMS ((bfd *));
 142 #endif /* COFF_IMAGE_WITH_PE */
 143
 144 /**********************************************************************/
 145
 146 #ifndef NO_COFF_RELOCS
 147 static void
 148 coff_swap_reloc_in (abfd, src, dst)
 149      bfd *abfd;
 150      PTR src;
 151      PTR dst;
 152 {
 153   RELOC *reloc_src = (RELOC *) src;
 154   struct internal_reloc *reloc_dst = (struct internal_reloc *) dst;
 155
 156   reloc_dst->r_vaddr = H_GET_32 (abfd, reloc_src->r_vaddr);
 157   reloc_dst->r_symndx = H_GET_S32 (abfd, reloc_src->r_symndx);
 158
 159   reloc_dst->r_type = H_GET_16 (abfd, reloc_src->r_type);
 160
 161 #ifdef SWAP_IN_RELOC_OFFSET
 162   reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET (abfd, reloc_src->r_offset);
 163 #endif
 164 }
 165
 166 static unsigned int
 167 coff_swap_reloc_out (abfd, src, dst)
 168      bfd       *abfd;
 169      PTR        src;
 170      PTR        dst;
 171 {
 172   struct internal_reloc *reloc_src = (struct internal_reloc *)src;
 173   struct external_reloc *reloc_dst = (struct external_reloc *)dst;
 174   H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr);
 175   H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx);
 176
 177   H_PUT_16 (abfd, reloc_src->r_type, reloc_dst->r_type);
 178
 179 #ifdef SWAP_OUT_RELOC_OFFSET
 180   SWAP_OUT_RELOC_OFFSET (abfd, reloc_src->r_offset, reloc_dst->r_offset);
 181 #endif
 182 #ifdef SWAP_OUT_RELOC_EXTRA
 183   SWAP_OUT_RELOC_EXTRA(abfd, reloc_src, reloc_dst);
 184 #endif
 185   return RELSZ;
 186 }
 187 #endif /* not NO_COFF_RELOCS */
 188
 189 static void
 190 coff_swap_filehdr_in (abfd, src, dst)
 191      bfd            *abfd;
 192      PTR             src;
 193      PTR             dst;
 194 {
 195   FILHDR *filehdr_src = (FILHDR *) src;
 196   struct internal_filehdr *filehdr_dst = (struct internal_filehdr *) dst;
 197   filehdr_dst->f_magic = H_GET_16 (abfd, filehdr_src->f_magic);
 198   filehdr_dst->f_nscns = H_GET_16 (abfd, filehdr_src-> f_nscns);
 199   filehdr_dst->f_timdat = H_GET_32 (abfd, filehdr_src-> f_timdat);
 200
 201   filehdr_dst->f_nsyms = H_GET_32 (abfd, filehdr_src-> f_nsyms);
 202   filehdr_dst->f_flags = H_GET_16 (abfd, filehdr_src-> f_flags);
 203   filehdr_dst->f_symptr = H_GET_32 (abfd, filehdr_src->f_symptr);
 204
 205   /* Other people's tools sometimes generate headers with an nsyms but
 206      a zero symptr.  */
 207   if (filehdr_dst->f_nsyms != 0 && filehdr_dst->f_symptr == 0)
 208     {
 209       filehdr_dst->f_nsyms = 0;
 210       filehdr_dst->f_flags |= F_LSYMS;
 211     }
 212
 213   filehdr_dst->f_opthdr = H_GET_16 (abfd, filehdr_src-> f_opthdr);
 214 }
 215
 216 #ifdef COFF_IMAGE_WITH_PE
 217 # define coff_swap_filehdr_out _bfd_XXi_only_swap_filehdr_out
 218 #else
 219 # define coff_swap_filehdr_out _bfd_pe_only_swap_filehdr_out
 220 #endif
 221
 222 static void
 223 coff_swap_scnhdr_in (abfd, ext, in)
 224      bfd            *abfd;
 225      PTR             ext;
 226      PTR             in;
 227 {
 228   SCNHDR *scnhdr_ext = (SCNHDR *) ext;
 229   struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *) in;
 230
 231   memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof (scnhdr_int->s_name));
 232   scnhdr_int->s_vaddr = GET_SCNHDR_VADDR (abfd, scnhdr_ext->s_vaddr);
 233   scnhdr_int->s_paddr = GET_SCNHDR_PADDR (abfd, scnhdr_ext->s_paddr);
 234   scnhdr_int->s_size = GET_SCNHDR_SIZE (abfd, scnhdr_ext->s_size);
 235   scnhdr_int->s_scnptr = GET_SCNHDR_SCNPTR (abfd, scnhdr_ext->s_scnptr);
 236   scnhdr_int->s_relptr = GET_SCNHDR_RELPTR (abfd, scnhdr_ext->s_relptr);
 237   scnhdr_int->s_lnnoptr = GET_SCNHDR_LNNOPTR (abfd, scnhdr_ext->s_lnnoptr);
 238   scnhdr_int->s_flags = H_GET_32 (abfd, scnhdr_ext->s_flags);
 239
 240   /* MS handles overflow of line numbers by carrying into the reloc
 241      field (it appears).  Since it's supposed to be zero for PE
 242      *IMAGE* format, that's safe.  This is still a bit iffy.  */
 243 #ifdef COFF_IMAGE_WITH_PE
 244   scnhdr_int->s_nlnno = (H_GET_16 (abfd, scnhdr_ext->s_nlnno)
 245                          + (H_GET_16 (abfd, scnhdr_ext->s_nreloc) << 16));
 246   scnhdr_int->s_nreloc = 0;
 247 #else
 248   scnhdr_int->s_nreloc = H_GET_16 (abfd, scnhdr_ext->s_nreloc);
 249   scnhdr_int->s_nlnno = H_GET_16 (abfd, scnhdr_ext->s_nlnno);
 250 #endif
 251
 252   if (scnhdr_int->s_vaddr != 0)
 253     {
 254       scnhdr_int->s_vaddr += pe_data (abfd)->pe_opthdr.ImageBase;
 255       scnhdr_int->s_vaddr &= 0xffffffff;
 256     }
 257
 258 #ifndef COFF_NO_HACK_SCNHDR_SIZE
 259   /* If this section holds uninitialized data and is from an object file
 260      or from an executable image that has not initialized the field,
 261      or if the image is an executable file and the physical size is padded,
 262      use the virtual size (stored in s_paddr) instead.  */
 263   if (scnhdr_int->s_paddr > 0
 264       && (((scnhdr_int->s_flags & IMAGE_SCN_CNT_UNINITIALIZED_DATA) != 0
 265            && (! bfd_pe_executable_p (abfd) || scnhdr_int->s_size == 0))
 266           || (bfd_pe_executable_p (abfd) && scnhdr_int->s_size > scnhdr_int->s_paddr)))
 267     {
 268       scnhdr_int->s_size = scnhdr_int->s_paddr;
 269
 270       /* This code used to set scnhdr_int->s_paddr to 0.  However,
 271          coff_set_alignment_hook stores s_paddr in virt_size, which
 272          only works if it correctly holds the virtual size of the
 273          section.  */
 274     }
 275 #endif
 276 }
 277
 278 static bfd_boolean
 279 pe_mkobject (abfd)
 280      bfd * abfd;
 281 {
 282   pe_data_type *pe;
 283   bfd_size_type amt = sizeof (pe_data_type);
 284
 285   abfd->tdata.pe_obj_data = (struct pe_tdata *) bfd_zalloc (abfd, amt);
 286
 287   if (abfd->tdata.pe_obj_data == 0)
 288     return FALSE;
 289
 290   pe = pe_data (abfd);
 291
 292   pe->coff.pe = 1;
 293
 294   /* in_reloc_p is architecture dependent.  */
 295   pe->in_reloc_p = in_reloc_p;
 296
 297 #ifdef PEI_FORCE_MINIMUM_ALIGNMENT
 298   pe->force_minimum_alignment = 1;
 299 #endif
 300 #ifdef PEI_TARGET_SUBSYSTEM
 301   pe->target_subsystem = PEI_TARGET_SUBSYSTEM;
 302 #endif
 303
 304   return TRUE;
 305 }
 306
 307 /* Create the COFF backend specific information.  */
 308 static PTR
 309 pe_mkobject_hook (abfd, filehdr, aouthdr)
 310      bfd * abfd;
 311      PTR filehdr;
 312      PTR aouthdr ATTRIBUTE_UNUSED;
 313 {
 314   struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
 315   pe_data_type *pe;
 316
 317   if (! pe_mkobject (abfd))
 318     return NULL;
 319
 320   pe = pe_data (abfd);
 321   pe->coff.sym_filepos = internal_f->f_symptr;
 322   /* These members communicate important constants about the symbol
 323      table to GDB's symbol-reading code.  These `constants'
 324      unfortunately vary among coff implementations...  */
 325   pe->coff.local_n_btmask = N_BTMASK;
 326   pe->coff.local_n_btshft = N_BTSHFT;
 327   pe->coff.local_n_tmask = N_TMASK;
 328   pe->coff.local_n_tshift = N_TSHIFT;
 329   pe->coff.local_symesz = SYMESZ;
 330   pe->coff.local_auxesz = AUXESZ;
 331   pe->coff.local_linesz = LINESZ;
 332
 333   pe->coff.timestamp = internal_f->f_timdat;
 334
 335   obj_raw_syment_count (abfd) =
 336     obj_conv_table_size (abfd) =
 337       internal_f->f_nsyms;
 338
 339   pe->real_flags = internal_f->f_flags;
 340
 341   if ((internal_f->f_flags & F_DLL) != 0)
 342     pe->dll = 1;
 343
 344   if ((internal_f->f_flags & IMAGE_FILE_DEBUG_STRIPPED) == 0)
 345     abfd->flags |= HAS_DEBUG;
 346
 347 #ifdef COFF_IMAGE_WITH_PE
 348   if (aouthdr)
 349     pe->pe_opthdr = ((struct internal_aouthdr *)aouthdr)->pe;
 350 #endif
 351
 352 #ifdef ARM
 353   if (! _bfd_coff_arm_set_private_flags (abfd, internal_f->f_flags))
 354     coff_data (abfd) ->flags = 0;
 355 #endif
 356
 357   return (PTR) pe;
 358 }
 359
 360 static bfd_boolean
 361 pe_print_private_bfd_data (abfd, vfile)
 362      bfd *abfd;
 363      PTR vfile;
 364 {
 365   FILE *file = (FILE *) vfile;
 366
 367   if (!_bfd_XX_print_private_bfd_data_common (abfd, vfile))
 368     return FALSE;
 369
 370   if (pe_saved_coff_bfd_print_private_bfd_data != NULL)
 371     {
 372       fputc ('\n', file);
 373
 374       return pe_saved_coff_bfd_print_private_bfd_data (abfd, vfile);
 375     }
 376
 377   return TRUE;
 378 }
 379
 380 /* Copy any private info we understand from the input bfd
 381    to the output bfd.  */
 382
 383 static bfd_boolean
 384 pe_bfd_copy_private_bfd_data (ibfd, obfd)
 385      bfd *ibfd, *obfd;
 386 {
 387   /* PR binutils/716: Copy the large address aware flag.
 388      XXX: Should we be copying other flags or other fields in the pe_data()
 389      structure ?  */
 390   if (pe_data (obfd) != NULL
 391       && pe_data (ibfd) != NULL
 392       && pe_data (ibfd)->real_flags & IMAGE_FILE_LARGE_ADDRESS_AWARE)
 393     pe_data (obfd)->real_flags |= IMAGE_FILE_LARGE_ADDRESS_AWARE;
 394
 395   if (!_bfd_XX_bfd_copy_private_bfd_data_common (ibfd, obfd))
 396     return FALSE;
 397
 398   if (pe_saved_coff_bfd_copy_private_bfd_data)
 399     return pe_saved_coff_bfd_copy_private_bfd_data (ibfd, obfd);
 400
 401   return TRUE;
 402 }
 403
 404 #define coff_bfd_copy_private_section_data \
 405   _bfd_XX_bfd_copy_private_section_data
 406
 407 #define coff_get_symbol_info _bfd_XX_get_symbol_info
 408
 409 #ifdef COFF_IMAGE_WITH_PE
 410 \f
 411 /* Code to handle Microsoft's Image Library Format.
 412    Also known as LINK6 format.
 413    Documentation about this format can be found at:
 414
 415    http://msdn.microsoft.com/library/specs/pecoff_section8.htm  */
 416
 417 /* The following constants specify the sizes of the various data
 418    structures that we have to create in order to build a bfd describing
 419    an ILF object file.  The final "+ 1" in the definitions of SIZEOF_IDATA6
 420    and SIZEOF_IDATA7 below is to allow for the possibility that we might
 421    need a padding byte in order to ensure 16 bit alignment for the section's
 422    contents.
 423
 424    The value for SIZEOF_ILF_STRINGS is computed as follows:
 425
 426       There will be NUM_ILF_SECTIONS section symbols.  Allow 9 characters
 427       per symbol for their names (longest section name is .idata$x).
 428
 429       There will be two symbols for the imported value, one the symbol name
 430       and one with _imp__ prefixed.  Allowing for the terminating nul's this
 431       is strlen (symbol_name) * 2 + 8 + 21 + strlen (source_dll).
 432
 433       The strings in the string table must start STRING__SIZE_SIZE bytes into
 434       the table in order to for the string lookup code in coffgen/coffcode to
 435       work.  */
 436 #define NUM_ILF_RELOCS          8
 437 #define NUM_ILF_SECTIONS        6
 438 #define NUM_ILF_SYMS            (2 + NUM_ILF_SECTIONS)
 439
 440 #define SIZEOF_ILF_SYMS         (NUM_ILF_SYMS * sizeof (* vars.sym_cache))
 441 #define SIZEOF_ILF_SYM_TABLE    (NUM_ILF_SYMS * sizeof (* vars.sym_table))
 442 #define SIZEOF_ILF_NATIVE_SYMS  (NUM_ILF_SYMS * sizeof (* vars.native_syms))
 443 #define SIZEOF_ILF_SYM_PTR_TABLE (NUM_ILF_SYMS * sizeof (* vars.sym_ptr_table))
 444 #define SIZEOF_ILF_EXT_SYMS     (NUM_ILF_SYMS * sizeof (* vars.esym_table))
 445 #define SIZEOF_ILF_RELOCS       (NUM_ILF_RELOCS * sizeof (* vars.reltab))
 446 #define SIZEOF_ILF_INT_RELOCS   (NUM_ILF_RELOCS * sizeof (* vars.int_reltab))
 447 #define SIZEOF_ILF_STRINGS      (strlen (symbol_name) * 2 + 8 \
 448                                         + 21 + strlen (source_dll) \
 449                                         + NUM_ILF_SECTIONS * 9 \
 450                                         + STRING_SIZE_SIZE)
 451 #define SIZEOF_IDATA2           (5 * 4)
 452 #define SIZEOF_IDATA4           (1 * 4)
 453 #define SIZEOF_IDATA5           (1 * 4)
 454 #define SIZEOF_IDATA6           (2 + strlen (symbol_name) + 1 + 1)
 455 #define SIZEOF_IDATA7           (strlen (source_dll) + 1 + 1)
 456 #define SIZEOF_ILF_SECTIONS     (NUM_ILF_SECTIONS * sizeof (struct coff_section_tdata))
 457
 458 #define ILF_DATA_SIZE                           \
 459       sizeof (* vars.bim)                       \
 460     + SIZEOF_ILF_SYMS                           \
 461     + SIZEOF_ILF_SYM_TABLE                      \
 462     + SIZEOF_ILF_NATIVE_SYMS                    \
 463     + SIZEOF_ILF_SYM_PTR_TABLE                  \
 464     + SIZEOF_ILF_EXT_SYMS                       \
 465     + SIZEOF_ILF_RELOCS                         \
 466     + SIZEOF_ILF_INT_RELOCS                     \
 467     + SIZEOF_ILF_STRINGS                        \
 468     + SIZEOF_IDATA2                             \
 469     + SIZEOF_IDATA4                             \
 470     + SIZEOF_IDATA5                             \
 471     + SIZEOF_IDATA6                             \
 472     + SIZEOF_IDATA7                             \
 473     + SIZEOF_ILF_SECTIONS                       \
 474     + MAX_TEXT_SECTION_SIZE
 475
 476 /* Create an empty relocation against the given symbol.  */
 477 static void
 478 pe_ILF_make_a_symbol_reloc (pe_ILF_vars *                 vars,
 479                             bfd_vma                       address,
 480                             bfd_reloc_code_real_type      reloc,
 481                             struct bfd_symbol **  sym,
 482                             unsigned int                  sym_index)
 483 {
 484   arelent * entry;
 485   struct internal_reloc * internal;
 486
 487   entry = vars->reltab + vars->relcount;
 488   internal = vars->int_reltab + vars->relcount;
 489
 490   entry->address     = address;
 491   entry->addend      = 0;
 492   entry->howto       = bfd_reloc_type_lookup (vars->abfd, reloc);
 493   entry->sym_ptr_ptr = sym;
 494
 495   internal->r_vaddr  = address;
 496   internal->r_symndx = sym_index;
 497   internal->r_type   = entry->howto->type;
 498
 499   vars->relcount ++;
 500
 501   BFD_ASSERT (vars->relcount <= NUM_ILF_RELOCS);
 502 }
 503
 504 /* Create an empty relocation against the given section.  */
 505 static void
 506 pe_ILF_make_a_reloc (pe_ILF_vars *             vars,
 507                      bfd_vma                   address,
 508                      bfd_reloc_code_real_type  reloc,
 509                      asection_ptr              sec)
 510 {
 511   pe_ILF_make_a_symbol_reloc (vars, address, reloc, sec->symbol_ptr_ptr,
 512                               coff_section_data (vars->abfd, sec)->i);
 513 }
 514
 515 /* Move the queued relocs into the given section.  */
 516 static void
 517 pe_ILF_save_relocs (pe_ILF_vars * vars,
 518                     asection_ptr  sec)
 519 {
 520   /* Make sure that there is somewhere to store the internal relocs.  */
 521   if (coff_section_data (vars->abfd, sec) == NULL)
 522     /* We should probably return an error indication here.  */
 523     abort ();
 524
 525   coff_section_data (vars->abfd, sec)->relocs = vars->int_reltab;
 526   coff_section_data (vars->abfd, sec)->keep_relocs = TRUE;
 527
 528   sec->relocation  = vars->reltab;
 529   sec->reloc_count = vars->relcount;
 530   sec->flags      |= SEC_RELOC;
 531
 532   vars->reltab     += vars->relcount;
 533   vars->int_reltab += vars->relcount;
 534   vars->relcount   = 0;
 535
 536   BFD_ASSERT ((bfd_byte *) vars->int_reltab < (bfd_byte *) vars->string_table);
 537 }
 538
 539 /* Create a global symbol and add it to the relevant tables.  */
 540 static void
 541 pe_ILF_make_a_symbol (pe_ILF_vars *  vars,
 542                       const char *   prefix,
 543                       const char *   symbol_name,
 544                       asection_ptr   section,
 545                       flagword       extra_flags)
 546 {
 547   coff_symbol_type * sym;
 548   combined_entry_type * ent;
 549   SYMENT * esym;
 550   unsigned short sclass;
 551
 552   if (extra_flags & BSF_LOCAL)
 553     sclass = C_STAT;
 554   else
 555     sclass = C_EXT;
 556
 557 #ifdef THUMBPEMAGIC
 558   if (vars->magic == THUMBPEMAGIC)
 559     {
 560       if (extra_flags & BSF_FUNCTION)
 561         sclass = C_THUMBEXTFUNC;
 562       else if (extra_flags & BSF_LOCAL)
 563         sclass = C_THUMBSTAT;
 564       else
 565         sclass = C_THUMBEXT;
 566     }
 567 #endif
 568
 569   BFD_ASSERT (vars->sym_index < NUM_ILF_SYMS);
 570
 571   sym = vars->sym_ptr;
 572   ent = vars->native_ptr;
 573   esym = vars->esym_ptr;
 574
 575   /* Copy the symbol's name into the string table.  */
 576   sprintf (vars->string_ptr, "%s%s", prefix, symbol_name);
 577
 578   if (section == NULL)
 579     section = (asection_ptr) & bfd_und_section;
 580
 581   /* Initialise the external symbol.  */
 582   H_PUT_32 (vars->abfd, vars->string_ptr - vars->string_table,
 583             esym->e.e.e_offset);
 584   H_PUT_16 (vars->abfd, section->target_index, esym->e_scnum);
 585   esym->e_sclass[0] = sclass;
 586
 587   /* The following initialisations are unnecessary - the memory is
 588      zero initialised.  They are just kept here as reminders.  */
 589
 590   /* Initialise the internal symbol structure.  */
 591   ent->u.syment.n_sclass          = sclass;
 592   ent->u.syment.n_scnum           = section->target_index;
 593   ent->u.syment._n._n_n._n_offset = (long) sym;
 594
 595   sym->symbol.the_bfd = vars->abfd;
 596   sym->symbol.name    = vars->string_ptr;
 597   sym->symbol.flags   = BSF_EXPORT | BSF_GLOBAL | extra_flags;
 598   sym->symbol.section = section;
 599   sym->native         = ent;
 600
 601   * vars->table_ptr = vars->sym_index;
 602   * vars->sym_ptr_ptr = sym;
 603
 604   /* Adjust pointers for the next symbol.  */
 605   vars->sym_index ++;
 606   vars->sym_ptr ++;
 607   vars->sym_ptr_ptr ++;
 608   vars->table_ptr ++;
 609   vars->native_ptr ++;
 610   vars->esym_ptr ++;
 611   vars->string_ptr += strlen (symbol_name) + strlen (prefix) + 1;
 612
 613   BFD_ASSERT (vars->string_ptr < vars->end_string_ptr);
 614 }
 615
 616 /* Create a section.  */
 617 static asection_ptr
 618 pe_ILF_make_a_section (pe_ILF_vars * vars,
 619                        const char *  name,
 620                        unsigned int  size,
 621                        flagword      extra_flags)
 622 {
 623   asection_ptr sec;
 624   flagword     flags;
 625
 626   sec = bfd_make_section_old_way (vars->abfd, name);
 627   if (sec == NULL)
 628     return NULL;
 629
 630   flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_KEEP | SEC_IN_MEMORY;
 631
 632   bfd_set_section_flags (vars->abfd, sec, flags | extra_flags);
 633
 634   bfd_set_section_alignment (vars->abfd, sec, 2);
 635
 636   /* Check that we will not run out of space.  */
 637   BFD_ASSERT (vars->data + size < vars->bim->buffer + vars->bim->size);
 638
 639   /* Set the section size and contents.  The actual
 640      contents are filled in by our parent.  */
 641   bfd_set_section_size (vars->abfd, sec, (bfd_size_type) size);
 642   sec->contents = vars->data;
 643   sec->target_index = vars->sec_index ++;
 644
 645   /* Advance data pointer in the vars structure.  */
 646   vars->data += size;
 647
 648   /* Skip the padding byte if it was not needed.
 649      The logic here is that if the string length is odd,
 650      then the entire string length, including the null byte,
 651      is even and so the extra, padding byte, is not needed.  */
 652   if (size & 1)
 653     vars->data --;
 654
 655   /* Create a coff_section_tdata structure for our use.  */
 656   sec->used_by_bfd = (struct coff_section_tdata *) vars->data;
 657   vars->data += sizeof (struct coff_section_tdata);
 658
 659   BFD_ASSERT (vars->data <= vars->bim->buffer + vars->bim->size);
 660
 661   /* Create a symbol to refer to this section.  */
 662   pe_ILF_make_a_symbol (vars, "", name, sec, BSF_LOCAL);
 663
 664   /* Cache the index to the symbol in the coff_section_data structure.  */
 665   coff_section_data (vars->abfd, sec)->i = vars->sym_index - 1;
 666
 667   return sec;
 668 }
 669
 670 /* This structure contains the code that goes into the .text section
 671    in order to perform a jump into the DLL lookup table.  The entries
 672    in the table are index by the magic number used to represent the
 673    machine type in the PE file.  The contents of the data[] arrays in
 674    these entries are stolen from the jtab[] arrays in ld/pe-dll.c.
 675    The SIZE field says how many bytes in the DATA array are actually
 676    used.  The OFFSET field says where in the data array the address
 677    of the .idata$5 section should be placed.  */
 678 #define MAX_TEXT_SECTION_SIZE 32
 679
 680 typedef struct
 681 {
 682   unsigned short magic;
 683   unsigned char  data[MAX_TEXT_SECTION_SIZE];
 684   unsigned int   size;
 685   unsigned int   offset;
 686 }
 687 jump_table;
 688
 689 static jump_table jtab[] =
 690 {
 691 #ifdef I386MAGIC
 692   { I386MAGIC,
 693     { 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 },
 694     8, 2
 695   },
 696 #endif
 697
 698 #ifdef  MC68MAGIC
 699   { MC68MAGIC, { /* XXX fill me in */ }, 0, 0 },
 700 #endif
 701 #ifdef  MIPS_ARCH_MAGIC_WINCE
 702   { MIPS_ARCH_MAGIC_WINCE,
 703     { 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d,
 704       0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 },
 705     16, 0
 706   },
 707 #endif
 708
 709 #ifdef  SH_ARCH_MAGIC_WINCE
 710   { SH_ARCH_MAGIC_WINCE,
 711     { 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40,
 712       0x09, 0x00, 0x00, 0x00, 0x00, 0x00 },
 713     12, 8
 714   },
 715 #endif
 716
 717 #ifdef  ARMPEMAGIC
 718   { ARMPEMAGIC,
 719     { 0x00, 0xc0, 0x9f, 0xe5, 0x00, 0xf0,
 720       0x9c, 0xe5, 0x00, 0x00, 0x00, 0x00},
 721     12, 8
 722   },
 723 #endif
 724
 725 #ifdef  THUMBPEMAGIC
 726   { THUMBPEMAGIC,
 727     { 0x40, 0xb4, 0x02, 0x4e, 0x36, 0x68, 0xb4, 0x46,
 728       0x40, 0xbc, 0x60, 0x47, 0x00, 0x00, 0x00, 0x00 },
 729     16, 12
 730   },
 731 #endif
 732   { 0, { 0 }, 0, 0 }
 733 };
 734
 735 #ifndef NUM_ENTRIES
 736 #define NUM_ENTRIES(a) (sizeof (a) / sizeof (a)[0])
 737 #endif
 738
 739 /* Build a full BFD from the information supplied in a ILF object.  */
 740 static bfd_boolean
 741 pe_ILF_build_a_bfd (bfd *           abfd,
 742                     unsigned int    magic,
 743                     bfd_byte *      symbol_name,
 744                     bfd_byte *      source_dll,
 745                     unsigned int    ordinal,
 746                     unsigned int    types)
 747 {
 748   bfd_byte *               ptr;
 749   pe_ILF_vars              vars;
 750   struct internal_filehdr  internal_f;
 751   unsigned int             import_type;
 752   unsigned int             import_name_type;
 753   asection_ptr             id4, id5, id6 = NULL, text = NULL;
 754   coff_symbol_type **      imp_sym;
 755   unsigned int             imp_index;
 756
 757   /* Decode and verify the types field of the ILF structure.  */
 758   import_type = types & 0x3;
 759   import_name_type = (types & 0x1c) >> 2;
 760
 761   switch (import_type)
 762     {
 763     case IMPORT_CODE:
 764     case IMPORT_DATA:
 765       break;
 766
 767     case IMPORT_CONST:
 768       /* XXX code yet to be written.  */
 769       _bfd_error_handler (_("%B: Unhandled import type; %x"),
 770                           abfd, import_type);
 771       return FALSE;
 772
 773     default:
 774       _bfd_error_handler (_("%B: Unrecognised import type; %x"),
 775                           abfd, import_type);
 776       return FALSE;
 777     }
 778
 779   switch (import_name_type)
 780     {
 781     case IMPORT_ORDINAL:
 782     case IMPORT_NAME:
 783     case IMPORT_NAME_NOPREFIX:
 784     case IMPORT_NAME_UNDECORATE:
 785       break;
 786
 787     default:
 788       _bfd_error_handler (_("%B: Unrecognised import name type; %x"),
 789                           abfd, import_name_type);
 790       return FALSE;
 791     }
 792
 793   /* Initialise local variables.
 794
 795      Note these are kept in a structure rather than being
 796      declared as statics since bfd frowns on global variables.
 797
 798      We are going to construct the contents of the BFD in memory,
 799      so allocate all the space that we will need right now.  */
 800   ptr = bfd_zalloc (abfd, (bfd_size_type) ILF_DATA_SIZE);
 801   if (ptr == NULL)
 802     return FALSE;
 803
 804   /* Create a bfd_in_memory structure.  */
 805   vars.bim = (struct bfd_in_memory *) ptr;
 806   vars.bim->buffer = ptr;
 807   vars.bim->size   = ILF_DATA_SIZE;
 808   ptr += sizeof (* vars.bim);
 809
 810   /* Initialise the pointers to regions of the memory and the
 811      other contents of the pe_ILF_vars structure as well.  */
 812   vars.sym_cache = (coff_symbol_type *) ptr;
 813   vars.sym_ptr   = (coff_symbol_type *) ptr;
 814   vars.sym_index = 0;
 815   ptr += SIZEOF_ILF_SYMS;
 816
 817   vars.sym_table = (unsigned int *) ptr;
 818   vars.table_ptr = (unsigned int *) ptr;
 819   ptr += SIZEOF_ILF_SYM_TABLE;
 820
 821   vars.native_syms = (combined_entry_type *) ptr;
 822   vars.native_ptr  = (combined_entry_type *) ptr;
 823   ptr += SIZEOF_ILF_NATIVE_SYMS;
 824
 825   vars.sym_ptr_table = (coff_symbol_type **) ptr;
 826   vars.sym_ptr_ptr   = (coff_symbol_type **) ptr;
 827   ptr += SIZEOF_ILF_SYM_PTR_TABLE;
 828
 829   vars.esym_table = (SYMENT *) ptr;
 830   vars.esym_ptr   = (SYMENT *) ptr;
 831   ptr += SIZEOF_ILF_EXT_SYMS;
 832
 833   vars.reltab   = (arelent *) ptr;
 834   vars.relcount = 0;
 835   ptr += SIZEOF_ILF_RELOCS;
 836
 837   vars.int_reltab  = (struct internal_reloc *) ptr;
 838   ptr += SIZEOF_ILF_INT_RELOCS;
 839
 840   vars.string_table = ptr;
 841   vars.string_ptr   = ptr + STRING_SIZE_SIZE;
 842   ptr += SIZEOF_ILF_STRINGS;
 843   vars.end_string_ptr = ptr;
 844
 845   /* The remaining space in bim->buffer is used
 846      by the pe_ILF_make_a_section() function.  */
 847   vars.data = ptr;
 848   vars.abfd = abfd;
 849   vars.sec_index = 0;
 850   vars.magic = magic;
 851
 852   /* Create the initial .idata$<n> sections:
 853      [.idata$2:  Import Directory Table -- not needed]
 854      .idata$4:  Import Lookup Table
 855      .idata$5:  Import Address Table
 856
 857      Note we do not create a .idata$3 section as this is
 858      created for us by the linker script.  */
 859   id4 = pe_ILF_make_a_section (& vars, ".idata$4", SIZEOF_IDATA4, 0);
 860   id5 = pe_ILF_make_a_section (& vars, ".idata$5", SIZEOF_IDATA5, 0);
 861   if (id4 == NULL || id5 == NULL)
 862     return FALSE;
 863
 864   /* Fill in the contents of these sections.  */
 865   if (import_name_type == IMPORT_ORDINAL)
 866     {
 867       if (ordinal == 0)
 868         /* XXX - treat as IMPORT_NAME ??? */
 869         abort ();
 870
 871       * (unsigned int *) id4->contents = ordinal | 0x80000000;
 872       * (unsigned int *) id5->contents = ordinal | 0x80000000;
 873     }
 874   else
 875     {
 876       char * symbol;
 877
 878       /* Create .idata$6 - the Hint Name Table.  */
 879       id6 = pe_ILF_make_a_section (& vars, ".idata$6", SIZEOF_IDATA6, 0);
 880       if (id6 == NULL)
 881         return FALSE;
 882
 883       /* If necessary, trim the import symbol name.  */
 884       symbol = symbol_name;
 885
 886       if (import_name_type != IMPORT_NAME)
 887         {
 888           bfd_boolean skipped_leading_underscore = FALSE;
 889           bfd_boolean skipped_leading_at = FALSE;
 890           bfd_boolean skipped_leading_question_mark = FALSE;
 891           bfd_boolean check_again;
 892
 893           /* Skip any prefix in symbol_name.  */
 894           -- symbol;
 895           do
 896             {
 897               check_again = FALSE;
 898               ++ symbol;
 899
 900               switch (*symbol)
 901                 {
 902                 case '@':
 903                   if (! skipped_leading_at)
 904                     check_again = skipped_leading_at = TRUE;
 905                   break;
 906                 case '?':
 907                   if (! skipped_leading_question_mark)
 908                     check_again = skipped_leading_question_mark = TRUE;
 909                   break;
 910                 case '_':
 911                   if (! skipped_leading_underscore)
 912                     check_again = skipped_leading_underscore = TRUE;
 913                   break;
 914                 default:
 915                   break;
 916                 }
 917             }
 918           while (check_again);
 919         }
 920
 921       if (import_name_type == IMPORT_NAME_UNDECORATE)
 922         {
 923           /* Truncate at the first '@'  */
 924           while (* symbol != 0 && * symbol != '@')
 925             symbol ++;
 926
 927           * symbol = 0;
 928         }
 929
 930       id6->contents[0] = ordinal & 0xff;
 931       id6->contents[1] = ordinal >> 8;
 932
 933       strcpy (id6->contents + 2, symbol);
 934     }
 935
 936   if (import_name_type != IMPORT_ORDINAL)
 937     {
 938       pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6);
 939       pe_ILF_save_relocs (&vars, id4);
 940
 941       pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_RVA, id6);
 942       pe_ILF_save_relocs (&vars, id5);
 943     }
 944
 945   /* Create extra sections depending upon the type of import we are dealing with.  */
 946   switch (import_type)
 947     {
 948       int i;
 949
 950     case IMPORT_CODE:
 951       /* Create a .text section.
 952          First we need to look up its contents in the jump table.  */
 953       for (i = NUM_ENTRIES (jtab); i--;)
 954         {
 955           if (jtab[i].size == 0)
 956             continue;
 957           if (jtab[i].magic == magic)
 958             break;
 959         }
 960       /* If we did not find a matching entry something is wrong.  */
 961       if (i < 0)
 962         abort ();
 963
 964       /* Create the .text section.  */
 965       text = pe_ILF_make_a_section (& vars, ".text", jtab[i].size, SEC_CODE);
 966       if (text == NULL)
 967         return FALSE;
 968
 969       /* Copy in the jump code.  */
 970       memcpy (text->contents, jtab[i].data, jtab[i].size);
 971
 972       /* Create an import symbol.  */
 973       pe_ILF_make_a_symbol (& vars, "__imp_", symbol_name, id5, 0);
 974       imp_sym   = vars.sym_ptr_ptr - 1;
 975       imp_index = vars.sym_index - 1;
 976
 977       /* Create a reloc for the data in the text section.  */
 978 #ifdef MIPS_ARCH_MAGIC_WINCE
 979       if (magic == MIPS_ARCH_MAGIC_WINCE)
 980         {
 981           pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 0, BFD_RELOC_HI16_S,
 982                                       (struct bfd_symbol **) imp_sym,
 983                                       imp_index);
 984           pe_ILF_make_a_reloc (&vars, (bfd_vma) 0, BFD_RELOC_LO16, text);
 985           pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) 4, BFD_RELOC_LO16,
 986                                       (struct bfd_symbol **) imp_sym,
 987                                       imp_index);
 988         }
 989       else
 990 #endif
 991         pe_ILF_make_a_symbol_reloc (&vars, (bfd_vma) jtab[i].offset,
 992                                     BFD_RELOC_32, (asymbol **) imp_sym,
 993                                     imp_index);
 994
 995       pe_ILF_save_relocs (& vars, text);
 996       break;
 997
 998     case IMPORT_DATA:
 999       break;
1000
1001     default:
1002       /* XXX code not yet written.  */
1003       abort ();
1004     }
1005
1006   /* Initialise the bfd.  */
1007   memset (& internal_f, 0, sizeof (internal_f));
1008
1009   internal_f.f_magic  = magic;
1010   internal_f.f_symptr = 0;
1011   internal_f.f_nsyms  = 0;
1012   internal_f.f_flags  = F_AR32WR | F_LNNO; /* XXX is this correct ?  */
1013
1014   if (   ! bfd_set_start_address (abfd, (bfd_vma) 0)
1015       || ! bfd_coff_set_arch_mach_hook (abfd, & internal_f))
1016     return FALSE;
1017
1018   if (bfd_coff_mkobject_hook (abfd, (PTR) & internal_f, NULL) == NULL)
1019     return FALSE;
1020
1021   coff_data (abfd)->pe = 1;
1022 #ifdef THUMBPEMAGIC
1023   if (vars.magic == THUMBPEMAGIC)
1024     /* Stop some linker warnings about thumb code not supporting interworking.  */
1025     coff_data (abfd)->flags |= F_INTERWORK | F_INTERWORK_SET;
1026 #endif
1027
1028   /* Switch from file contents to memory contents.  */
1029   bfd_cache_close (abfd);
1030
1031   abfd->iostream = (PTR) vars.bim;
1032   abfd->flags |= BFD_IN_MEMORY /* | HAS_LOCALS */;
1033   abfd->where = 0;
1034   obj_sym_filepos (abfd) = 0;
1035
1036   /* Now create a symbol describing the imported value.  */
1037   switch (import_type)
1038     {
1039     case IMPORT_CODE:
1040       pe_ILF_make_a_symbol (& vars, "", symbol_name, text,
1041                             BSF_NOT_AT_END | BSF_FUNCTION);
1042
1043       /* Create an import symbol for the DLL, without the
1044        .dll suffix.  */
1045       ptr = strrchr (source_dll, '.');
1046       if (ptr)
1047         * ptr = 0;
1048       pe_ILF_make_a_symbol (& vars, "__IMPORT_DESCRIPTOR_", source_dll, NULL, 0);
1049       if (ptr)
1050         * ptr = '.';
1051       break;
1052
1053     case IMPORT_DATA:
1054       /* Nothing to do here.  */
1055       break;
1056
1057     default:
1058       /* XXX code not yet written.  */
1059       abort ();
1060     }
1061
1062   /* Point the bfd at the symbol table.  */
1063   obj_symbols (abfd) = vars.sym_cache;
1064   bfd_get_symcount (abfd) = vars.sym_index;
1065
1066   obj_raw_syments (abfd) = vars.native_syms;
1067   obj_raw_syment_count (abfd) = vars.sym_index;
1068
1069   obj_coff_external_syms (abfd) = (PTR) vars.esym_table;
1070   obj_coff_keep_syms (abfd) = TRUE;
1071
1072   obj_convert (abfd) = vars.sym_table;
1073   obj_conv_table_size (abfd) = vars.sym_index;
1074
1075   obj_coff_strings (abfd) = vars.string_table;
1076   obj_coff_keep_strings (abfd) = TRUE;
1077
1078   abfd->flags |= HAS_SYMS;
1079
1080   return TRUE;
1081 }
1082
1083 /* We have detected a Image Library Format archive element.
1084    Decode the element and return the appropriate target.  */
1085 static const bfd_target *
1086 pe_ILF_object_p (bfd * abfd)
1087 {
1088   bfd_byte        buffer[16];
1089   bfd_byte *      ptr;
1090   bfd_byte *      symbol_name;
1091   bfd_byte *      source_dll;
1092   unsigned int    machine;
1093   bfd_size_type   size;
1094   unsigned int    ordinal;
1095   unsigned int    types;
1096   unsigned int    magic;
1097
1098   /* Upon entry the first four buyes of the ILF header have
1099       already been read.  Now read the rest of the header.  */
1100   if (bfd_bread (buffer, (bfd_size_type) 16, abfd) != 16)
1101     return NULL;
1102
1103   ptr = buffer;
1104
1105   /*  We do not bother to check the version number.
1106       version = H_GET_16 (abfd, ptr);  */
1107   ptr += 2;
1108
1109   machine = H_GET_16 (abfd, ptr);
1110   ptr += 2;
1111
1112   /* Check that the machine type is recognised.  */
1113   magic = 0;
1114
1115   switch (machine)
1116     {
1117     case IMAGE_FILE_MACHINE_UNKNOWN:
1118     case IMAGE_FILE_MACHINE_ALPHA:
1119     case IMAGE_FILE_MACHINE_ALPHA64:
1120     case IMAGE_FILE_MACHINE_IA64:
1121       break;
1122
1123     case IMAGE_FILE_MACHINE_I386:
1124 #ifdef I386MAGIC
1125       magic = I386MAGIC;
1126 #endif
1127       break;
1128
1129     case IMAGE_FILE_MACHINE_M68K:
1130 #ifdef MC68AGIC
1131       magic = MC68MAGIC;
1132 #endif
1133       break;
1134
1135     case IMAGE_FILE_MACHINE_R3000:
1136     case IMAGE_FILE_MACHINE_R4000:
1137     case IMAGE_FILE_MACHINE_R10000:
1138
1139     case IMAGE_FILE_MACHINE_MIPS16:
1140     case IMAGE_FILE_MACHINE_MIPSFPU:
1141     case IMAGE_FILE_MACHINE_MIPSFPU16:
1142 #ifdef MIPS_ARCH_MAGIC_WINCE
1143       magic = MIPS_ARCH_MAGIC_WINCE;
1144 #endif
1145       break;
1146
1147     case IMAGE_FILE_MACHINE_SH3:
1148     case IMAGE_FILE_MACHINE_SH4:
1149 #ifdef SH_ARCH_MAGIC_WINCE
1150       magic = SH_ARCH_MAGIC_WINCE;
1151 #endif
1152       break;
1153
1154     case IMAGE_FILE_MACHINE_ARM:
1155 #ifdef ARMPEMAGIC
1156       magic = ARMPEMAGIC;
1157 #endif
1158       break;
1159
1160     case IMAGE_FILE_MACHINE_THUMB:
1161 #ifdef THUMBPEMAGIC
1162       {
1163         extern const bfd_target TARGET_LITTLE_SYM;
1164
1165         if (abfd->xvec == & TARGET_LITTLE_SYM)
1166           magic = THUMBPEMAGIC;
1167       }
1168 #endif
1169       break;
1170
1171     case IMAGE_FILE_MACHINE_POWERPC:
1172       /* We no longer support PowerPC.  */
1173     default:
1174       _bfd_error_handler
1175         (_("%B: Unrecognised machine type (0x%x)"
1176            " in Import Library Format archive"),
1177          abfd, machine);
1178       bfd_set_error (bfd_error_malformed_archive);
1179
1180       return NULL;
1181       break;
1182     }
1183
1184   if (magic == 0)
1185     {
1186       _bfd_error_handler
1187         (_("%B: Recognised but unhandled machine type (0x%x)"
1188            " in Import Library Format archive"),
1189          abfd, machine);
1190       bfd_set_error (bfd_error_wrong_format);
1191
1192       return NULL;
1193     }
1194
1195   /* We do not bother to check the date.
1196      date = H_GET_32 (abfd, ptr);  */
1197   ptr += 4;
1198
1199   size = H_GET_32 (abfd, ptr);
1200   ptr += 4;
1201
1202   if (size == 0)
1203     {
1204       _bfd_error_handler
1205         (_("%B: size field is zero in Import Library Format header"), abfd);
1206       bfd_set_error (bfd_error_malformed_archive);
1207
1208       return NULL;
1209     }
1210
1211   ordinal = H_GET_16 (abfd, ptr);
1212   ptr += 2;
1213
1214   types = H_GET_16 (abfd, ptr);
1215   /* ptr += 2; */
1216
1217   /* Now read in the two strings that follow.  */
1218   ptr = bfd_alloc (abfd, size);
1219   if (ptr == NULL)
1220     return NULL;
1221
1222   if (bfd_bread (ptr, size, abfd) != size)
1223     {
1224       bfd_release (abfd, ptr);
1225       return NULL;
1226     }
1227
1228   symbol_name = ptr;
1229   source_dll  = ptr + strlen (ptr) + 1;
1230
1231   /* Verify that the strings are null terminated.  */
1232   if (ptr[size - 1] != 0 || ((unsigned long) (source_dll - ptr) >= size))
1233     {
1234       _bfd_error_handler
1235         (_("%B: string not null terminated in ILF object file."), abfd);
1236       bfd_set_error (bfd_error_malformed_archive);
1237       bfd_release (abfd, ptr);
1238       return NULL;
1239     }
1240
1241   /* Now construct the bfd.  */
1242   if (! pe_ILF_build_a_bfd (abfd, magic, symbol_name,
1243                             source_dll, ordinal, types))
1244     {
1245       bfd_release (abfd, ptr);
1246       return NULL;
1247     }
1248
1249   return abfd->xvec;
1250 }
1251
1252 static const bfd_target *
1253 pe_bfd_object_p (bfd * abfd)
1254 {
1255   bfd_byte buffer[4];
1256   struct external_PEI_DOS_hdr dos_hdr;
1257   struct external_PEI_IMAGE_hdr image_hdr;
1258   file_ptr offset;
1259
1260   /* Detect if this a Microsoft Import Library Format element.  */
1261   if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
1262       || bfd_bread (buffer, (bfd_size_type) 4, abfd) != 4)
1263     {
1264       if (bfd_get_error () != bfd_error_system_call)
1265         bfd_set_error (bfd_error_wrong_format);
1266       return NULL;
1267     }
1268
1269   if (H_GET_32 (abfd, buffer) == 0xffff0000)
1270     return pe_ILF_object_p (abfd);
1271
1272   if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0
1273       || bfd_bread (&dos_hdr, (bfd_size_type) sizeof (dos_hdr), abfd)
1274          != sizeof (dos_hdr))
1275     {
1276       if (bfd_get_error () != bfd_error_system_call)
1277         bfd_set_error (bfd_error_wrong_format);
1278       return NULL;
1279     }
1280
1281   /* There are really two magic numbers involved; the magic number
1282      that says this is a NT executable (PEI) and the magic number that
1283      determines the architecture.  The former is DOSMAGIC, stored in
1284      the e_magic field.  The latter is stored in the f_magic field.
1285      If the NT magic number isn't valid, the architecture magic number
1286      could be mimicked by some other field (specifically, the number
1287      of relocs in section 3).  Since this routine can only be called
1288      correctly for a PEI file, check the e_magic number here, and, if
1289      it doesn't match, clobber the f_magic number so that we don't get
1290      a false match.  */
1291   if (H_GET_16 (abfd, dos_hdr.e_magic) != DOSMAGIC)
1292     {
1293       bfd_set_error (bfd_error_wrong_format);
1294       return NULL;
1295     }
1296
1297   offset = H_GET_32 (abfd, dos_hdr.e_lfanew);
1298   if (bfd_seek (abfd, offset, SEEK_SET) != 0
1299       || (bfd_bread (&image_hdr, (bfd_size_type) sizeof (image_hdr), abfd)
1300           != sizeof (image_hdr)))
1301     {
1302       if (bfd_get_error () != bfd_error_system_call)
1303         bfd_set_error (bfd_error_wrong_format);
1304       return NULL;
1305     }
1306
1307   if (H_GET_32 (abfd, image_hdr.nt_signature) != 0x4550)
1308     {
1309       bfd_set_error (bfd_error_wrong_format);
1310       return NULL;
1311     }
1312
1313   /* Here is the hack.  coff_object_p wants to read filhsz bytes to
1314      pick up the COFF header for PE, see "struct external_PEI_filehdr"
1315      in include/coff/pe.h.  We adjust so that that will work. */
1316   if (bfd_seek (abfd, (file_ptr) (offset - sizeof (dos_hdr)), SEEK_SET) != 0)
1317     {
1318       if (bfd_get_error () != bfd_error_system_call)
1319         bfd_set_error (bfd_error_wrong_format);
1320       return NULL;
1321     }
1322
1323   return coff_object_p (abfd);
1324 }
1325
1326 #define coff_object_p pe_bfd_object_p
1327 #endif /* COFF_IMAGE_WITH_PE */