bfd/libpei.h

   1 /* Support for the generic parts of PE/PEI; common header information.
   2    Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005
   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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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 #ifndef GET_FCN_LNNOPTR
  57 #define GET_FCN_LNNOPTR(abfd, ext) \
  58   H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
  59 #endif
  60
  61 #ifndef GET_FCN_ENDNDX
  62 #define GET_FCN_ENDNDX(abfd, ext) \
  63   H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_endndx)
  64 #endif
  65
  66 #ifndef PUT_FCN_LNNOPTR
  67 #define PUT_FCN_LNNOPTR(abfd, in, ext) \
  68   H_PUT_32(abfd, in, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
  69 #endif
  70 #ifndef PUT_FCN_ENDNDX
  71 #define PUT_FCN_ENDNDX(abfd, in, ext) \
  72   H_PUT_32(abfd, in, ext->x_sym.x_fcnary.x_fcn.x_endndx)
  73 #endif
  74 #ifndef GET_LNSZ_LNNO
  75 #define GET_LNSZ_LNNO(abfd, ext) \
  76   H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno)
  77 #endif
  78 #ifndef GET_LNSZ_SIZE
  79 #define GET_LNSZ_SIZE(abfd, ext) \
  80   H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_size)
  81 #endif
  82 #ifndef PUT_LNSZ_LNNO
  83 #define PUT_LNSZ_LNNO(abfd, in, ext) \
  84   H_PUT_16(abfd, in, ext->x_sym.x_misc.x_lnsz.x_lnno)
  85 #endif
  86 #ifndef PUT_LNSZ_SIZE
  87 #define PUT_LNSZ_SIZE(abfd, in, ext) \
  88   H_PUT_16(abfd, in, ext->x_sym.x_misc.x_lnsz.x_size)
  89 #endif
  90 #ifndef GET_SCN_SCNLEN
  91 #define GET_SCN_SCNLEN(abfd, ext) \
  92   H_GET_32 (abfd, ext->x_scn.x_scnlen)
  93 #endif
  94 #ifndef GET_SCN_NRELOC
  95 #define GET_SCN_NRELOC(abfd, ext) \
  96   H_GET_16 (abfd, ext->x_scn.x_nreloc)
  97 #endif
  98 #ifndef GET_SCN_NLINNO
  99 #define GET_SCN_NLINNO(abfd, ext) \
 100   H_GET_16 (abfd, ext->x_scn.x_nlinno)
 101 #endif
 102 #ifndef PUT_SCN_SCNLEN
 103 #define PUT_SCN_SCNLEN(abfd, in, ext) \
 104   H_PUT_32(abfd, in, ext->x_scn.x_scnlen)
 105 #endif
 106 #ifndef PUT_SCN_NRELOC
 107 #define PUT_SCN_NRELOC(abfd, in, ext) \
 108   H_PUT_16(abfd, in, ext->x_scn.x_nreloc)
 109 #endif
 110 #ifndef PUT_SCN_NLINNO
 111 #define PUT_SCN_NLINNO(abfd, in, ext) \
 112   H_PUT_16(abfd,in, ext->x_scn.x_nlinno)
 113 #endif
 114 #ifndef GET_LINENO_LNNO
 115 #define GET_LINENO_LNNO(abfd, ext) \
 116   H_GET_16 (abfd, ext->l_lnno);
 117 #endif
 118 #ifndef PUT_LINENO_LNNO
 119 #define PUT_LINENO_LNNO(abfd, val, ext) \
 120   H_PUT_16(abfd,val, ext->l_lnno);
 121 #endif
 122
 123 /* The f_symptr field in the filehdr is sometimes 64 bits.  */
 124 #ifndef GET_FILEHDR_SYMPTR
 125 #define GET_FILEHDR_SYMPTR H_GET_32
 126 #endif
 127 #ifndef PUT_FILEHDR_SYMPTR
 128 #define PUT_FILEHDR_SYMPTR H_PUT_32
 129 #endif
 130
 131 /* Some fields in the aouthdr are sometimes 64 bits.  */
 132 #ifndef GET_AOUTHDR_TSIZE
 133 #define GET_AOUTHDR_TSIZE H_GET_32
 134 #endif
 135 #ifndef PUT_AOUTHDR_TSIZE
 136 #define PUT_AOUTHDR_TSIZE H_PUT_32
 137 #endif
 138 #ifndef GET_AOUTHDR_DSIZE
 139 #define GET_AOUTHDR_DSIZE H_GET_32
 140 #endif
 141 #ifndef PUT_AOUTHDR_DSIZE
 142 #define PUT_AOUTHDR_DSIZE H_PUT_32
 143 #endif
 144 #ifndef GET_AOUTHDR_BSIZE
 145 #define GET_AOUTHDR_BSIZE H_GET_32
 146 #endif
 147 #ifndef PUT_AOUTHDR_BSIZE
 148 #define PUT_AOUTHDR_BSIZE H_PUT_32
 149 #endif
 150 #ifndef GET_AOUTHDR_ENTRY
 151 #define GET_AOUTHDR_ENTRY H_GET_32
 152 #endif
 153 #ifndef PUT_AOUTHDR_ENTRY
 154 #define PUT_AOUTHDR_ENTRY H_PUT_32
 155 #endif
 156 #ifndef GET_AOUTHDR_TEXT_START
 157 #define GET_AOUTHDR_TEXT_START H_GET_32
 158 #endif
 159 #ifndef PUT_AOUTHDR_TEXT_START
 160 #define PUT_AOUTHDR_TEXT_START H_PUT_32
 161 #endif
 162 #ifndef GET_AOUTHDR_DATA_START
 163 #define GET_AOUTHDR_DATA_START H_GET_32
 164 #endif
 165 #ifndef PUT_AOUTHDR_DATA_START
 166 #define PUT_AOUTHDR_DATA_START H_PUT_32
 167 #endif
 168
 169 /* Some fields in the scnhdr are sometimes 64 bits.  */
 170 #ifndef GET_SCNHDR_PADDR
 171 #define GET_SCNHDR_PADDR H_GET_32
 172 #endif
 173 #ifndef PUT_SCNHDR_PADDR
 174 #define PUT_SCNHDR_PADDR H_PUT_32
 175 #endif
 176 #ifndef GET_SCNHDR_VADDR
 177 #define GET_SCNHDR_VADDR H_GET_32
 178 #endif
 179 #ifndef PUT_SCNHDR_VADDR
 180 #define PUT_SCNHDR_VADDR H_PUT_32
 181 #endif
 182 #ifndef GET_SCNHDR_SIZE
 183 #define GET_SCNHDR_SIZE H_GET_32
 184 #endif
 185 #ifndef PUT_SCNHDR_SIZE
 186 #define PUT_SCNHDR_SIZE H_PUT_32
 187 #endif
 188 #ifndef GET_SCNHDR_SCNPTR
 189 #define GET_SCNHDR_SCNPTR H_GET_32
 190 #endif
 191 #ifndef PUT_SCNHDR_SCNPTR
 192 #define PUT_SCNHDR_SCNPTR H_PUT_32
 193 #endif
 194 #ifndef GET_SCNHDR_RELPTR
 195 #define GET_SCNHDR_RELPTR H_GET_32
 196 #endif
 197 #ifndef PUT_SCNHDR_RELPTR
 198 #define PUT_SCNHDR_RELPTR H_PUT_32
 199 #endif
 200 #ifndef GET_SCNHDR_LNNOPTR
 201 #define GET_SCNHDR_LNNOPTR H_GET_32
 202 #endif
 203 #ifndef PUT_SCNHDR_LNNOPTR
 204 #define PUT_SCNHDR_LNNOPTR H_PUT_32
 205 #endif
 206
 207 #ifdef COFF_WITH_pep
 208
 209 #define GET_OPTHDR_IMAGE_BASE H_GET_64
 210 #define PUT_OPTHDR_IMAGE_BASE H_PUT_64
 211 #define GET_OPTHDR_SIZE_OF_STACK_RESERVE H_GET_64
 212 #define PUT_OPTHDR_SIZE_OF_STACK_RESERVE H_PUT_64
 213 #define GET_OPTHDR_SIZE_OF_STACK_COMMIT H_GET_64
 214 #define PUT_OPTHDR_SIZE_OF_STACK_COMMIT H_PUT_64
 215 #define GET_OPTHDR_SIZE_OF_HEAP_RESERVE H_GET_64
 216 #define PUT_OPTHDR_SIZE_OF_HEAP_RESERVE H_PUT_64
 217 #define GET_OPTHDR_SIZE_OF_HEAP_COMMIT H_GET_64
 218 #define PUT_OPTHDR_SIZE_OF_HEAP_COMMIT H_PUT_64
 219 #define GET_PDATA_ENTRY bfd_get_64
 220
 221 #define _bfd_XX_bfd_copy_private_bfd_data_common        _bfd_pep_bfd_copy_private_bfd_data_common
 222 #define _bfd_XX_bfd_copy_private_section_data           _bfd_pep_bfd_copy_private_section_data
 223 #define _bfd_XX_get_symbol_info                         _bfd_pep_get_symbol_info
 224 #define _bfd_XX_only_swap_filehdr_out                   _bfd_pep_only_swap_filehdr_out
 225 #define _bfd_XX_print_private_bfd_data_common           _bfd_pep_print_private_bfd_data_common
 226 #define _bfd_XXi_final_link_postscript                  _bfd_pepi_final_link_postscript
 227 #define _bfd_XXi_final_link_postscript                  _bfd_pepi_final_link_postscript
 228 #define _bfd_XXi_only_swap_filehdr_out                  _bfd_pepi_only_swap_filehdr_out
 229 #define _bfd_XXi_swap_aouthdr_in                        _bfd_pepi_swap_aouthdr_in
 230 #define _bfd_XXi_swap_aouthdr_out                       _bfd_pepi_swap_aouthdr_out
 231 #define _bfd_XXi_swap_aux_in                            _bfd_pepi_swap_aux_in
 232 #define _bfd_XXi_swap_aux_out                           _bfd_pepi_swap_aux_out
 233 #define _bfd_XXi_swap_lineno_in                         _bfd_pepi_swap_lineno_in
 234 #define _bfd_XXi_swap_lineno_out                        _bfd_pepi_swap_lineno_out
 235 #define _bfd_XXi_swap_scnhdr_out                        _bfd_pepi_swap_scnhdr_out
 236 #define _bfd_XXi_swap_sym_in                            _bfd_pepi_swap_sym_in
 237 #define _bfd_XXi_swap_sym_out                           _bfd_pepi_swap_sym_out
 238
 239 #else /* !COFF_WITH_pep */
 240
 241 #define GET_OPTHDR_IMAGE_BASE H_GET_32
 242 #define PUT_OPTHDR_IMAGE_BASE H_PUT_32
 243 #define GET_OPTHDR_SIZE_OF_STACK_RESERVE H_GET_32
 244 #define PUT_OPTHDR_SIZE_OF_STACK_RESERVE H_PUT_32
 245 #define GET_OPTHDR_SIZE_OF_STACK_COMMIT H_GET_32
 246 #define PUT_OPTHDR_SIZE_OF_STACK_COMMIT H_PUT_32
 247 #define GET_OPTHDR_SIZE_OF_HEAP_RESERVE H_GET_32
 248 #define PUT_OPTHDR_SIZE_OF_HEAP_RESERVE H_PUT_32
 249 #define GET_OPTHDR_SIZE_OF_HEAP_COMMIT H_GET_32
 250 #define PUT_OPTHDR_SIZE_OF_HEAP_COMMIT H_PUT_32
 251 #define GET_PDATA_ENTRY bfd_get_32
 252
 253 #define _bfd_XX_bfd_copy_private_bfd_data_common        _bfd_pe_bfd_copy_private_bfd_data_common
 254 #define _bfd_XX_bfd_copy_private_section_data           _bfd_pe_bfd_copy_private_section_data
 255 #define _bfd_XX_get_symbol_info                         _bfd_pe_get_symbol_info
 256 #define _bfd_XX_only_swap_filehdr_out                   _bfd_pe_only_swap_filehdr_out
 257 #define _bfd_XX_print_private_bfd_data_common           _bfd_pe_print_private_bfd_data_common
 258 #define _bfd_XXi_final_link_postscript                  _bfd_pei_final_link_postscript
 259 #define _bfd_XXi_final_link_postscript                  _bfd_pei_final_link_postscript
 260 #define _bfd_XXi_only_swap_filehdr_out                  _bfd_pei_only_swap_filehdr_out
 261 #define _bfd_XXi_swap_aouthdr_in                        _bfd_pei_swap_aouthdr_in
 262 #define _bfd_XXi_swap_aouthdr_out                       _bfd_pei_swap_aouthdr_out
 263 #define _bfd_XXi_swap_aux_in                            _bfd_pei_swap_aux_in
 264 #define _bfd_XXi_swap_aux_out                           _bfd_pei_swap_aux_out
 265 #define _bfd_XXi_swap_lineno_in                         _bfd_pei_swap_lineno_in
 266 #define _bfd_XXi_swap_lineno_out                        _bfd_pei_swap_lineno_out
 267 #define _bfd_XXi_swap_scnhdr_out                        _bfd_pei_swap_scnhdr_out
 268 #define _bfd_XXi_swap_sym_in                            _bfd_pei_swap_sym_in
 269 #define _bfd_XXi_swap_sym_out                           _bfd_pei_swap_sym_out
 270
 271 #endif /* !COFF_WITH_pep */
 272
 273 /* Macro: Returns true if the bfd is a PE executable as opposed to a PE object file.  */
 274 #define bfd_pe_executable_p(abfd) \
 275   (strncmp ((abfd)->xvec->name, "pei-", 4) == 0         \
 276    || strncmp ((abfd)->xvec->name, "efi-app-", 8) == 0)
 277
 278 /* These functions are architecture dependent, and are in peicode.h:
 279    coff_swap_reloc_in
 280    int coff_swap_reloc_out
 281    coff_swap_filehdr_in
 282    coff_swap_scnhdr_in
 283    pe_mkobject
 284    pe_mkobject_hook  */
 285
 286 /* The functions described below are common across all PE/PEI
 287    implementations architecture types, and actually appear in
 288    peigen.c.  */
 289
 290 #define coff_swap_sym_in      _bfd_XXi_swap_sym_in
 291 #define coff_swap_sym_out     _bfd_XXi_swap_sym_out
 292 #define coff_swap_aux_in      _bfd_XXi_swap_aux_in
 293 #define coff_swap_aux_out     _bfd_XXi_swap_aux_out
 294 #define coff_swap_lineno_in   _bfd_XXi_swap_lineno_in
 295 #define coff_swap_lineno_out  _bfd_XXi_swap_lineno_out
 296 #define coff_swap_aouthdr_in  _bfd_XXi_swap_aouthdr_in
 297 #define coff_swap_aouthdr_out _bfd_XXi_swap_aouthdr_out
 298 #define coff_swap_scnhdr_out  _bfd_XXi_swap_scnhdr_out
 299
 300 #ifndef coff_final_link_postscript
 301 #define coff_final_link_postscript _bfd_XXi_final_link_postscript
 302 #endif
 303
 304 void        _bfd_XXi_swap_sym_in (bfd *, void *, void *);
 305 unsigned    _bfd_XXi_swap_sym_out (bfd *, void *, void *);
 306 void        _bfd_XXi_swap_aux_in (bfd *, void *, int, int, int, int, void *);
 307 unsigned    _bfd_XXi_swap_aux_out (bfd *, void *, int, int, int, int, void *);
 308 void        _bfd_XXi_swap_lineno_in (bfd *, void *, void *);
 309 unsigned    _bfd_XXi_swap_lineno_out (bfd *, void *, void *);
 310 void        _bfd_XXi_swap_aouthdr_in (bfd *, void *, void *);
 311 unsigned    _bfd_XXi_swap_aouthdr_out (bfd *, void *, void *);
 312 unsigned    _bfd_XXi_swap_scnhdr_out (bfd *, void *, void *);
 313 bfd_boolean _bfd_XX_print_private_bfd_data_common (bfd *, void *);
 314 bfd_boolean _bfd_XX_bfd_copy_private_bfd_data_common (bfd *, bfd *);
 315 void        _bfd_XX_get_symbol_info (bfd *, asymbol *, symbol_info *);
 316 bfd_boolean _bfd_XXi_final_link_postscript (bfd *, struct coff_final_link_info *);
 317
 318 /* The following are needed only for ONE of pe or pei, but don't
 319    otherwise vary; peicode.h fixes up ifdefs but we provide the
 320    prototype.  */
 321
 322 unsigned    _bfd_XX_only_swap_filehdr_out  (bfd *, void *, void *);
 323 unsigned    _bfd_XXi_only_swap_filehdr_out (bfd *, void *, void *);
 324 bfd_boolean _bfd_XX_bfd_copy_private_section_data (bfd *, asection *, bfd *, asection *);
 325