bfd/libpei.h

   1 /* Support for the generic parts of PE/PEI; common header information.
   2    Copyright (C) 1995-2017 Free Software Foundation, Inc.
   3    Written by Cygnus Solutions.
   4
   5    This file is part of BFD, the Binary File Descriptor library.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20    MA 02110-1301, USA.  */
  21
  22
  23 /* Most of this hacked by  Steve Chamberlain,
  24                         sac@cygnus.com
  25
  26    PE/PEI rearrangement (and code added): Donn Terry
  27                                        Softway Systems, Inc.  */
  28
  29 /* Hey look, some documentation [and in a place you expect to find it]!
  30
  31    The main reference for the pei format is "Microsoft Portable Executable
  32    and Common Object File Format Specification 4.1".  Get it if you need to
  33    do some serious hacking on this code.
  34
  35    Another reference:
  36    "Peering Inside the PE: A Tour of the Win32 Portable Executable
  37    File Format", MSJ 1994, Volume 9.
  38
  39    The *sole* difference between the pe format and the pei format is that the
  40    latter has an MSDOS 2.0 .exe header on the front that prints the message
  41    "This app must be run under Windows." (or some such).
  42    (FIXME: Whether that statement is *really* true or not is unknown.
  43    Are there more subtle differences between pe and pei formats?
  44    For now assume there aren't.  If you find one, then for God sakes
  45    document it here!)
  46
  47    The Microsoft docs use the word "image" instead of "executable" because
  48    the former can also refer to a DLL (shared library).  Confusion can arise
  49    because the `i' in `pei' also refers to "image".  The `pe' format can
  50    also create images (i.e. executables), it's just that to run on a win32
  51    system you need to use the pei format.
  52
  53    FIXME: Please add more docs here so the next poor fool that has to hack
  54    on this code has a chance of getting something accomplished without
  55    wasting too much time.  */
  56
  57 #ifndef GET_FCN_LNNOPTR
  58 #define GET_FCN_LNNOPTR(abfd, ext) \
  59   H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
  60 #endif
  61
  62 #ifndef GET_FCN_ENDNDX
  63 #define GET_FCN_ENDNDX(abfd, ext) \
  64   H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_endndx)
  65 #endif
  66
  67 #ifndef PUT_FCN_LNNOPTR
  68 #define PUT_FCN_LNNOPTR(abfd, in, ext) \
  69   H_PUT_32(abfd, in, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
  70 #endif
  71 #ifndef PUT_FCN_ENDNDX
  72 #define PUT_FCN_ENDNDX(abfd, in, ext) \
  73   H_PUT_32(abfd, in, ext->x_sym.x_fcnary.x_fcn.x_endndx)
  74 #endif
  75 #ifndef GET_LNSZ_LNNO
  76 #define GET_LNSZ_LNNO(abfd, ext) \
  77   H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno)
  78 #endif
  79 #ifndef GET_LNSZ_SIZE
  80 #define GET_LNSZ_SIZE(abfd, ext) \
  81   H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_size)
  82 #endif
  83 #ifndef PUT_LNSZ_LNNO
  84 #define PUT_LNSZ_LNNO(abfd, in, ext) \
  85   H_PUT_16(abfd, in, ext->x_sym.x_misc.x_lnsz.x_lnno)
  86 #endif
  87 #ifndef PUT_LNSZ_SIZE
  88 #define PUT_LNSZ_SIZE(abfd, in, ext) \
  89   H_PUT_16(abfd, in, ext->x_sym.x_misc.x_lnsz.x_size)
  90 #endif
  91 #ifndef GET_SCN_SCNLEN
  92 #define GET_SCN_SCNLEN(abfd, ext) \
  93   H_GET_32 (abfd, ext->x_scn.x_scnlen)
  94 #endif
  95 #ifndef GET_SCN_NRELOC
  96 #define GET_SCN_NRELOC(abfd, ext) \
  97   H_GET_16 (abfd, ext->x_scn.x_nreloc)
  98 #endif
  99 #ifndef GET_SCN_NLINNO
 100 #define GET_SCN_NLINNO(abfd, ext) \
 101   H_GET_16 (abfd, ext->x_scn.x_nlinno)
 102 #endif
 103 #ifndef PUT_SCN_SCNLEN
 104 #define PUT_SCN_SCNLEN(abfd, in, ext) \
 105   H_PUT_32(abfd, in, ext->x_scn.x_scnlen)
 106 #endif
 107 #ifndef PUT_SCN_NRELOC
 108 #define PUT_SCN_NRELOC(abfd, in, ext) \
 109   H_PUT_16(abfd, in, ext->x_scn.x_nreloc)
 110 #endif
 111 #ifndef PUT_SCN_NLINNO
 112 #define PUT_SCN_NLINNO(abfd, in, ext) \
 113   H_PUT_16(abfd,in, ext->x_scn.x_nlinno)
 114 #endif
 115 #ifndef GET_LINENO_LNNO
 116 #define GET_LINENO_LNNO(abfd, ext) \
 117   H_GET_16 (abfd, ext->l_lnno);
 118 #endif
 119 #ifndef PUT_LINENO_LNNO
 120 #define PUT_LINENO_LNNO(abfd, val, ext) \
 121   H_PUT_16(abfd,val, ext->l_lnno);
 122 #endif
 123
 124 /* The f_symptr field in the filehdr is sometimes 64 bits.  */
 125 #ifndef GET_FILEHDR_SYMPTR
 126 #define GET_FILEHDR_SYMPTR H_GET_32
 127 #endif
 128 #ifndef PUT_FILEHDR_SYMPTR
 129 #define PUT_FILEHDR_SYMPTR H_PUT_32
 130 #endif
 131
 132 /* Some fields in the aouthdr are sometimes 64 bits.  */
 133 #ifndef GET_AOUTHDR_TSIZE
 134 #define GET_AOUTHDR_TSIZE H_GET_32
 135 #endif
 136 #ifndef PUT_AOUTHDR_TSIZE
 137 #define PUT_AOUTHDR_TSIZE H_PUT_32
 138 #endif
 139 #ifndef GET_AOUTHDR_DSIZE
 140 #define GET_AOUTHDR_DSIZE H_GET_32
 141 #endif
 142 #ifndef PUT_AOUTHDR_DSIZE
 143 #define PUT_AOUTHDR_DSIZE H_PUT_32
 144 #endif
 145 #ifndef GET_AOUTHDR_BSIZE
 146 #define GET_AOUTHDR_BSIZE H_GET_32
 147 #endif
 148 #ifndef PUT_AOUTHDR_BSIZE
 149 #define PUT_AOUTHDR_BSIZE H_PUT_32
 150 #endif
 151 #ifndef GET_AOUTHDR_ENTRY
 152 #define GET_AOUTHDR_ENTRY H_GET_32
 153 #endif
 154 #ifndef PUT_AOUTHDR_ENTRY
 155 #define PUT_AOUTHDR_ENTRY H_PUT_32
 156 #endif
 157 #ifndef GET_AOUTHDR_TEXT_START
 158 #define GET_AOUTHDR_TEXT_START H_GET_32
 159 #endif
 160 #ifndef PUT_AOUTHDR_TEXT_START
 161 #define PUT_AOUTHDR_TEXT_START H_PUT_32
 162 #endif
 163 #ifndef GET_AOUTHDR_DATA_START
 164 #define GET_AOUTHDR_DATA_START H_GET_32
 165 #endif
 166 #ifndef PUT_AOUTHDR_DATA_START
 167 #define PUT_AOUTHDR_DATA_START H_PUT_32
 168 #endif
 169
 170 /* Some fields in the scnhdr are sometimes 64 bits.  */
 171 #ifndef GET_SCNHDR_PADDR
 172 #define GET_SCNHDR_PADDR H_GET_32
 173 #endif
 174 #ifndef PUT_SCNHDR_PADDR
 175 #define PUT_SCNHDR_PADDR H_PUT_32
 176 #endif
 177 #ifndef GET_SCNHDR_VADDR
 178 #define GET_SCNHDR_VADDR H_GET_32
 179 #endif
 180 #ifndef PUT_SCNHDR_VADDR
 181 #define PUT_SCNHDR_VADDR H_PUT_32
 182 #endif
 183 #ifndef GET_SCNHDR_SIZE
 184 #define GET_SCNHDR_SIZE H_GET_32
 185 #endif
 186 #ifndef PUT_SCNHDR_SIZE
 187 #define PUT_SCNHDR_SIZE H_PUT_32
 188 #endif
 189 #ifndef GET_SCNHDR_SCNPTR
 190 #define GET_SCNHDR_SCNPTR H_GET_32
 191 #endif
 192 #ifndef PUT_SCNHDR_SCNPTR
 193 #define PUT_SCNHDR_SCNPTR H_PUT_32
 194 #endif
 195 #ifndef GET_SCNHDR_RELPTR
 196 #define GET_SCNHDR_RELPTR H_GET_32
 197 #endif
 198 #ifndef PUT_SCNHDR_RELPTR
 199 #define PUT_SCNHDR_RELPTR H_PUT_32
 200 #endif
 201 #ifndef GET_SCNHDR_LNNOPTR
 202 #define GET_SCNHDR_LNNOPTR H_GET_32
 203 #endif
 204 #ifndef PUT_SCNHDR_LNNOPTR
 205 #define PUT_SCNHDR_LNNOPTR H_PUT_32
 206 #endif
 207
 208 #ifdef COFF_WITH_pex64
 209
 210 #define GET_OPTHDR_IMAGE_BASE            H_GET_64
 211 #define PUT_OPTHDR_IMAGE_BASE            H_PUT_64
 212 #define GET_OPTHDR_SIZE_OF_STACK_RESERVE H_GET_64
 213 #define PUT_OPTHDR_SIZE_OF_STACK_RESERVE H_PUT_64
 214 #define GET_OPTHDR_SIZE_OF_STACK_COMMIT  H_GET_64
 215 #define PUT_OPTHDR_SIZE_OF_STACK_COMMIT  H_PUT_64
 216 #define GET_OPTHDR_SIZE_OF_HEAP_RESERVE  H_GET_64
 217 #define PUT_OPTHDR_SIZE_OF_HEAP_RESERVE  H_PUT_64
 218 #define GET_OPTHDR_SIZE_OF_HEAP_COMMIT   H_GET_64
 219 #define PUT_OPTHDR_SIZE_OF_HEAP_COMMIT   H_PUT_64
 220 #define GET_PDATA_ENTRY                  bfd_get_32
 221
 222 #define _bfd_XX_bfd_copy_private_bfd_data_common        _bfd_pex64_bfd_copy_private_bfd_data_common
 223 #define _bfd_XX_bfd_copy_private_section_data           _bfd_pex64_bfd_copy_private_section_data
 224 #define _bfd_XX_get_symbol_info                         _bfd_pex64_get_symbol_info
 225 #define _bfd_XX_only_swap_filehdr_out                   _bfd_pex64_only_swap_filehdr_out
 226 #define _bfd_XX_print_private_bfd_data_common           _bfd_pex64_print_private_bfd_data_common
 227 #define _bfd_XXi_final_link_postscript                  _bfd_pex64i_final_link_postscript
 228 #define _bfd_XXi_only_swap_filehdr_out                  _bfd_pex64i_only_swap_filehdr_out
 229 #define _bfd_XXi_swap_aouthdr_in                        _bfd_pex64i_swap_aouthdr_in
 230 #define _bfd_XXi_swap_aouthdr_out                       _bfd_pex64i_swap_aouthdr_out
 231 #define _bfd_XXi_swap_aux_in                            _bfd_pex64i_swap_aux_in
 232 #define _bfd_XXi_swap_aux_out                           _bfd_pex64i_swap_aux_out
 233 #define _bfd_XXi_swap_lineno_in                         _bfd_pex64i_swap_lineno_in
 234 #define _bfd_XXi_swap_lineno_out                        _bfd_pex64i_swap_lineno_out
 235 #define _bfd_XXi_swap_scnhdr_out                        _bfd_pex64i_swap_scnhdr_out
 236 #define _bfd_XXi_swap_sym_in                            _bfd_pex64i_swap_sym_in
 237 #define _bfd_XXi_swap_sym_out                           _bfd_pex64i_swap_sym_out
 238 #define _bfd_XXi_swap_debugdir_in                       _bfd_pex64i_swap_debugdir_in
 239 #define _bfd_XXi_swap_debugdir_out                      _bfd_pex64i_swap_debugdir_out
 240 #define _bfd_XXi_write_codeview_record                  _bfd_pex64i_write_codeview_record
 241 #define _bfd_XXi_slurp_codeview_record                  _bfd_pex64i_slurp_codeview_record
 242
 243 #elif defined COFF_WITH_pep
 244
 245 #define GET_OPTHDR_IMAGE_BASE H_GET_64
 246 #define PUT_OPTHDR_IMAGE_BASE H_PUT_64
 247 #define GET_OPTHDR_SIZE_OF_STACK_RESERVE H_GET_64
 248 #define PUT_OPTHDR_SIZE_OF_STACK_RESERVE H_PUT_64
 249 #define GET_OPTHDR_SIZE_OF_STACK_COMMIT H_GET_64
 250 #define PUT_OPTHDR_SIZE_OF_STACK_COMMIT H_PUT_64
 251 #define GET_OPTHDR_SIZE_OF_HEAP_RESERVE H_GET_64
 252 #define PUT_OPTHDR_SIZE_OF_HEAP_RESERVE H_PUT_64
 253 #define GET_OPTHDR_SIZE_OF_HEAP_COMMIT H_GET_64
 254 #define PUT_OPTHDR_SIZE_OF_HEAP_COMMIT H_PUT_64
 255 #define GET_PDATA_ENTRY bfd_get_64
 256
 257 #define _bfd_XX_bfd_copy_private_bfd_data_common        _bfd_pep_bfd_copy_private_bfd_data_common
 258 #define _bfd_XX_bfd_copy_private_section_data           _bfd_pep_bfd_copy_private_section_data
 259 #define _bfd_XX_get_symbol_info                         _bfd_pep_get_symbol_info
 260 #define _bfd_XX_only_swap_filehdr_out                   _bfd_pep_only_swap_filehdr_out
 261 #define _bfd_XX_print_private_bfd_data_common           _bfd_pep_print_private_bfd_data_common
 262 #define _bfd_XXi_final_link_postscript                  _bfd_pepi_final_link_postscript
 263 #define _bfd_XXi_only_swap_filehdr_out                  _bfd_pepi_only_swap_filehdr_out
 264 #define _bfd_XXi_swap_aouthdr_in                        _bfd_pepi_swap_aouthdr_in
 265 #define _bfd_XXi_swap_aouthdr_out                       _bfd_pepi_swap_aouthdr_out
 266 #define _bfd_XXi_swap_aux_in                            _bfd_pepi_swap_aux_in
 267 #define _bfd_XXi_swap_aux_out                           _bfd_pepi_swap_aux_out
 268 #define _bfd_XXi_swap_lineno_in                         _bfd_pepi_swap_lineno_in
 269 #define _bfd_XXi_swap_lineno_out                        _bfd_pepi_swap_lineno_out
 270 #define _bfd_XXi_swap_scnhdr_out                        _bfd_pepi_swap_scnhdr_out
 271 #define _bfd_XXi_swap_sym_in                            _bfd_pepi_swap_sym_in
 272 #define _bfd_XXi_swap_sym_out                           _bfd_pepi_swap_sym_out
 273 #define _bfd_XXi_swap_debugdir_in                       _bfd_pepi_swap_debugdir_in
 274 #define _bfd_XXi_swap_debugdir_out                      _bfd_pepi_swap_debugdir_out
 275 #define _bfd_XXi_write_codeview_record                  _bfd_pepi_write_codeview_record
 276 #define _bfd_XXi_slurp_codeview_record                  _bfd_pepi_slurp_codeview_record
 277
 278 #else /* !COFF_WITH_pep */
 279
 280 #define GET_OPTHDR_IMAGE_BASE H_GET_32
 281 #define PUT_OPTHDR_IMAGE_BASE H_PUT_32
 282 #define GET_OPTHDR_SIZE_OF_STACK_RESERVE H_GET_32
 283 #define PUT_OPTHDR_SIZE_OF_STACK_RESERVE H_PUT_32
 284 #define GET_OPTHDR_SIZE_OF_STACK_COMMIT H_GET_32
 285 #define PUT_OPTHDR_SIZE_OF_STACK_COMMIT H_PUT_32
 286 #define GET_OPTHDR_SIZE_OF_HEAP_RESERVE H_GET_32
 287 #define PUT_OPTHDR_SIZE_OF_HEAP_RESERVE H_PUT_32
 288 #define GET_OPTHDR_SIZE_OF_HEAP_COMMIT H_GET_32
 289 #define PUT_OPTHDR_SIZE_OF_HEAP_COMMIT H_PUT_32
 290 #define GET_PDATA_ENTRY bfd_get_32
 291
 292 #define _bfd_XX_bfd_copy_private_bfd_data_common        _bfd_pe_bfd_copy_private_bfd_data_common
 293 #define _bfd_XX_bfd_copy_private_section_data           _bfd_pe_bfd_copy_private_section_data
 294 #define _bfd_XX_get_symbol_info                         _bfd_pe_get_symbol_info
 295 #define _bfd_XX_only_swap_filehdr_out                   _bfd_pe_only_swap_filehdr_out
 296 #define _bfd_XX_print_private_bfd_data_common           _bfd_pe_print_private_bfd_data_common
 297 #define _bfd_XXi_final_link_postscript                  _bfd_pei_final_link_postscript
 298 #define _bfd_XXi_only_swap_filehdr_out                  _bfd_pei_only_swap_filehdr_out
 299 #define _bfd_XXi_swap_aouthdr_in                        _bfd_pei_swap_aouthdr_in
 300 #define _bfd_XXi_swap_aouthdr_out                       _bfd_pei_swap_aouthdr_out
 301 #define _bfd_XXi_swap_aux_in                            _bfd_pei_swap_aux_in
 302 #define _bfd_XXi_swap_aux_out                           _bfd_pei_swap_aux_out
 303 #define _bfd_XXi_swap_lineno_in                         _bfd_pei_swap_lineno_in
 304 #define _bfd_XXi_swap_lineno_out                        _bfd_pei_swap_lineno_out
 305 #define _bfd_XXi_swap_scnhdr_out                        _bfd_pei_swap_scnhdr_out
 306 #define _bfd_XXi_swap_sym_in                            _bfd_pei_swap_sym_in
 307 #define _bfd_XXi_swap_sym_out                           _bfd_pei_swap_sym_out
 308 #define _bfd_XXi_swap_debugdir_in                       _bfd_pei_swap_debugdir_in
 309 #define _bfd_XXi_swap_debugdir_out                      _bfd_pei_swap_debugdir_out
 310 #define _bfd_XXi_write_codeview_record                  _bfd_pei_write_codeview_record
 311 #define _bfd_XXi_slurp_codeview_record                  _bfd_pei_slurp_codeview_record
 312
 313 #endif /* !COFF_WITH_pep */
 314
 315 /* These functions are architecture dependent, and are in peicode.h:
 316    coff_swap_reloc_in
 317    int coff_swap_reloc_out
 318    coff_swap_filehdr_in
 319    coff_swap_scnhdr_in
 320    pe_mkobject
 321    pe_mkobject_hook  */
 322
 323 /* The functions described below are common across all PE/PEI
 324    implementations architecture types, and actually appear in
 325    peigen.c.  */
 326
 327 #define coff_swap_sym_in      _bfd_XXi_swap_sym_in
 328 #define coff_swap_sym_out     _bfd_XXi_swap_sym_out
 329 #define coff_swap_aux_in      _bfd_XXi_swap_aux_in
 330 #define coff_swap_aux_out     _bfd_XXi_swap_aux_out
 331 #define coff_swap_lineno_in   _bfd_XXi_swap_lineno_in
 332 #define coff_swap_lineno_out  _bfd_XXi_swap_lineno_out
 333 #define coff_swap_aouthdr_in  _bfd_XXi_swap_aouthdr_in
 334 #define coff_swap_aouthdr_out _bfd_XXi_swap_aouthdr_out
 335 #define coff_swap_scnhdr_out  _bfd_XXi_swap_scnhdr_out
 336
 337 #ifndef coff_final_link_postscript
 338 #define coff_final_link_postscript _bfd_XXi_final_link_postscript
 339 #endif
 340
 341 void        _bfd_XXi_swap_sym_in (bfd *, void *, void *);
 342 unsigned    _bfd_XXi_swap_sym_out (bfd *, void *, void *);
 343 void        _bfd_XXi_swap_aux_in (bfd *, void *, int, int, int, int, void *);
 344 unsigned    _bfd_XXi_swap_aux_out (bfd *, void *, int, int, int, int, void *);
 345 void        _bfd_XXi_swap_lineno_in (bfd *, void *, void *);
 346 unsigned    _bfd_XXi_swap_lineno_out (bfd *, void *, void *);
 347 void        _bfd_XXi_swap_aouthdr_in (bfd *, void *, void *);
 348 unsigned    _bfd_XXi_swap_aouthdr_out (bfd *, void *, void *);
 349 unsigned    _bfd_XXi_swap_scnhdr_out (bfd *, void *, void *);
 350 bfd_boolean _bfd_XX_print_private_bfd_data_common (bfd *, void *);
 351 bfd_boolean _bfd_XX_bfd_copy_private_bfd_data_common (bfd *, bfd *);
 352 void        _bfd_XX_get_symbol_info (bfd *, asymbol *, symbol_info *);
 353 bfd_boolean _bfd_XXi_final_link_postscript (bfd *, struct coff_final_link_info *);
 354 void        _bfd_XXi_swap_debugdir_in (bfd *, void *, void *);
 355 unsigned    _bfd_XXi_swap_debugdir_out (bfd *, void *, void *);
 356 unsigned    _bfd_XXi_write_codeview_record (bfd *, file_ptr, CODEVIEW_INFO *);
 357 CODEVIEW_INFO * _bfd_XXi_slurp_codeview_record (bfd * abfd, file_ptr where, unsigned long length, CODEVIEW_INFO *cvinfo);
 358
 359 /* The following are needed only for ONE of pe or pei, but don't
 360    otherwise vary; peicode.h fixes up ifdefs but we provide the
 361    prototype.  */
 362
 363 unsigned    _bfd_XX_only_swap_filehdr_out  (bfd *, void *, void *);
 364 unsigned    _bfd_XXi_only_swap_filehdr_out (bfd *, void *, void *);
 365 bfd_boolean _bfd_XX_bfd_copy_private_section_data (bfd *, asection *, bfd *, asection *);
 366
 367 bfd_boolean _bfd_pe_print_ce_compressed_pdata (bfd *, void *);
 368 bfd_boolean _bfd_pe64_print_ce_compressed_pdata (bfd *, void *);
 369 bfd_boolean _bfd_pex64_print_ce_compressed_pdata (bfd *, void *);
 370 bfd_boolean _bfd_pep_print_ce_compressed_pdata (bfd *, void *);
 371