| 1 | /* rescoff.c -- read and write resources in Windows COFF files. |
| 2 | Copyright 1997, 1998, 1999, 2000, 2003, 2007 |
| 3 | Free Software Foundation, Inc. |
| 4 | Written by Ian Lance Taylor, Cygnus Support. |
| 5 | |
| 6 | This file is part of GNU Binutils. |
| 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 |
| 21 | 02110-1301, USA. */ |
| 22 | |
| 23 | /* This file contains function that read and write Windows resources |
| 24 | in COFF files. */ |
| 25 | |
| 26 | #include "sysdep.h" |
| 27 | #include "bfd.h" |
| 28 | #include "libiberty.h" |
| 29 | #include "bucomm.h" |
| 30 | #include "windres.h" |
| 31 | |
| 32 | #include <assert.h> |
| 33 | |
| 34 | /* In order to use the address of a resource data entry, we need to |
| 35 | get the image base of the file. Right now we extract it from |
| 36 | internal BFD information. FIXME. */ |
| 37 | |
| 38 | #include "coff/internal.h" |
| 39 | #include "libcoff.h" |
| 40 | |
| 41 | /* Information we extract from the file. */ |
| 42 | |
| 43 | struct coff_file_info |
| 44 | { |
| 45 | /* File name. */ |
| 46 | const char *filename; |
| 47 | /* Data read from the file. */ |
| 48 | const bfd_byte *data; |
| 49 | /* End of data read from file. */ |
| 50 | const bfd_byte *data_end; |
| 51 | /* Address of the resource section minus the image base of the file. */ |
| 52 | bfd_vma secaddr; |
| 53 | /* Non-zero if the file is big endian. */ |
| 54 | int big_endian; |
| 55 | }; |
| 56 | |
| 57 | /* A resource directory table in a COFF file. */ |
| 58 | |
| 59 | struct extern_res_directory |
| 60 | { |
| 61 | /* Characteristics. */ |
| 62 | bfd_byte characteristics[4]; |
| 63 | /* Time stamp. */ |
| 64 | bfd_byte time[4]; |
| 65 | /* Major version number. */ |
| 66 | bfd_byte major[2]; |
| 67 | /* Minor version number. */ |
| 68 | bfd_byte minor[2]; |
| 69 | /* Number of named directory entries. */ |
| 70 | bfd_byte name_count[2]; |
| 71 | /* Number of directory entries with IDs. */ |
| 72 | bfd_byte id_count[2]; |
| 73 | }; |
| 74 | |
| 75 | /* A resource directory entry in a COFF file. */ |
| 76 | |
| 77 | struct extern_res_entry |
| 78 | { |
| 79 | /* Name or ID. */ |
| 80 | bfd_byte name[4]; |
| 81 | /* Address of resource entry or subdirectory. */ |
| 82 | bfd_byte rva[4]; |
| 83 | }; |
| 84 | |
| 85 | /* A resource data entry in a COFF file. */ |
| 86 | |
| 87 | struct extern_res_data |
| 88 | { |
| 89 | /* Address of resource data. This is apparently a file relative |
| 90 | address, rather than a section offset. */ |
| 91 | bfd_byte rva[4]; |
| 92 | /* Size of resource data. */ |
| 93 | bfd_byte size[4]; |
| 94 | /* Code page. */ |
| 95 | bfd_byte codepage[4]; |
| 96 | /* Reserved. */ |
| 97 | bfd_byte reserved[4]; |
| 98 | }; |
| 99 | |
| 100 | /* Macros to swap in values. */ |
| 101 | |
| 102 | #define getfi_16(fi, s) ((fi)->big_endian ? bfd_getb16 (s) : bfd_getl16 (s)) |
| 103 | #define getfi_32(fi, s) ((fi)->big_endian ? bfd_getb32 (s) : bfd_getl32 (s)) |
| 104 | |
| 105 | /* Local functions. */ |
| 106 | |
| 107 | static void overrun (const struct coff_file_info *, const char *); |
| 108 | static struct res_directory *read_coff_res_dir |
| 109 | (const bfd_byte *, const struct coff_file_info *, |
| 110 | const struct res_id *, int); |
| 111 | static struct res_resource *read_coff_data_entry |
| 112 | (const bfd_byte *, const struct coff_file_info *, const struct res_id *); |
| 113 | \f |
| 114 | /* Read the resources in a COFF file. */ |
| 115 | |
| 116 | struct res_directory * |
| 117 | read_coff_rsrc (const char *filename, const char *target) |
| 118 | { |
| 119 | bfd *abfd; |
| 120 | char **matching; |
| 121 | asection *sec; |
| 122 | bfd_size_type size; |
| 123 | bfd_byte *data; |
| 124 | struct coff_file_info finfo; |
| 125 | |
| 126 | if (filename == NULL) |
| 127 | fatal (_("filename required for COFF input")); |
| 128 | |
| 129 | abfd = bfd_openr (filename, target); |
| 130 | if (abfd == NULL) |
| 131 | bfd_fatal (filename); |
| 132 | |
| 133 | if (! bfd_check_format_matches (abfd, bfd_object, &matching)) |
| 134 | { |
| 135 | bfd_nonfatal (bfd_get_filename (abfd)); |
| 136 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized) |
| 137 | list_matching_formats (matching); |
| 138 | xexit (1); |
| 139 | } |
| 140 | |
| 141 | sec = bfd_get_section_by_name (abfd, ".rsrc"); |
| 142 | if (sec == NULL) |
| 143 | { |
| 144 | fatal (_("%s: no resource section"), filename); |
| 145 | } |
| 146 | |
| 147 | size = bfd_section_size (abfd, sec); |
| 148 | data = (bfd_byte *) res_alloc (size); |
| 149 | |
| 150 | if (! bfd_get_section_contents (abfd, sec, data, 0, size)) |
| 151 | bfd_fatal (_("can't read resource section")); |
| 152 | |
| 153 | finfo.filename = filename; |
| 154 | finfo.data = data; |
| 155 | finfo.data_end = data + size; |
| 156 | finfo.secaddr = (bfd_get_section_vma (abfd, sec) |
| 157 | - pe_data (abfd)->pe_opthdr.ImageBase); |
| 158 | finfo.big_endian = bfd_big_endian (abfd); |
| 159 | |
| 160 | bfd_close (abfd); |
| 161 | |
| 162 | /* Now just read in the top level resource directory. Note that we |
| 163 | don't free data, since we create resource entries that point into |
| 164 | it. If we ever want to free up the resource information we read, |
| 165 | this will have to be cleaned up. */ |
| 166 | |
| 167 | return read_coff_res_dir (data, &finfo, (const struct res_id *) NULL, 0); |
| 168 | } |
| 169 | |
| 170 | /* Give an error if we are out of bounds. */ |
| 171 | |
| 172 | static void |
| 173 | overrun (const struct coff_file_info *finfo, const char *msg) |
| 174 | { |
| 175 | fatal (_("%s: %s: address out of bounds"), finfo->filename, msg); |
| 176 | } |
| 177 | |
| 178 | /* Read a resource directory. */ |
| 179 | |
| 180 | static struct res_directory * |
| 181 | read_coff_res_dir (const bfd_byte *data, const struct coff_file_info *finfo, |
| 182 | const struct res_id *type, int level) |
| 183 | { |
| 184 | const struct extern_res_directory *erd; |
| 185 | struct res_directory *rd; |
| 186 | int name_count, id_count, i; |
| 187 | struct res_entry **pp; |
| 188 | const struct extern_res_entry *ere; |
| 189 | |
| 190 | if ((size_t) (finfo->data_end - data) < sizeof (struct extern_res_directory)) |
| 191 | overrun (finfo, _("directory")); |
| 192 | |
| 193 | erd = (const struct extern_res_directory *) data; |
| 194 | |
| 195 | rd = (struct res_directory *) res_alloc (sizeof *rd); |
| 196 | rd->characteristics = getfi_32 (finfo, erd->characteristics); |
| 197 | rd->time = getfi_32 (finfo, erd->time); |
| 198 | rd->major = getfi_16 (finfo, erd->major); |
| 199 | rd->minor = getfi_16 (finfo, erd->minor); |
| 200 | rd->entries = NULL; |
| 201 | |
| 202 | name_count = getfi_16 (finfo, erd->name_count); |
| 203 | id_count = getfi_16 (finfo, erd->id_count); |
| 204 | |
| 205 | pp = &rd->entries; |
| 206 | |
| 207 | /* The resource directory entries immediately follow the directory |
| 208 | table. */ |
| 209 | ere = (const struct extern_res_entry *) (erd + 1); |
| 210 | |
| 211 | for (i = 0; i < name_count; i++, ere++) |
| 212 | { |
| 213 | unsigned long name, rva; |
| 214 | struct res_entry *re; |
| 215 | const bfd_byte *ers; |
| 216 | int length, j; |
| 217 | |
| 218 | if ((const bfd_byte *) ere >= finfo->data_end) |
| 219 | overrun (finfo, _("named directory entry")); |
| 220 | |
| 221 | name = getfi_32 (finfo, ere->name); |
| 222 | rva = getfi_32 (finfo, ere->rva); |
| 223 | |
| 224 | /* For some reason the high bit in NAME is set. */ |
| 225 | name &=~ 0x80000000; |
| 226 | |
| 227 | if (name > (size_t) (finfo->data_end - finfo->data)) |
| 228 | overrun (finfo, _("directory entry name")); |
| 229 | |
| 230 | ers = finfo->data + name; |
| 231 | |
| 232 | re = (struct res_entry *) res_alloc (sizeof *re); |
| 233 | re->next = NULL; |
| 234 | re->id.named = 1; |
| 235 | length = getfi_16 (finfo, ers); |
| 236 | re->id.u.n.length = length; |
| 237 | re->id.u.n.name = (unichar *) res_alloc (length * sizeof (unichar)); |
| 238 | for (j = 0; j < length; j++) |
| 239 | re->id.u.n.name[j] = getfi_16 (finfo, ers + j * 2 + 2); |
| 240 | |
| 241 | if (level == 0) |
| 242 | type = &re->id; |
| 243 | |
| 244 | if ((rva & 0x80000000) != 0) |
| 245 | { |
| 246 | rva &=~ 0x80000000; |
| 247 | if (rva >= (size_t) (finfo->data_end - finfo->data)) |
| 248 | overrun (finfo, _("named subdirectory")); |
| 249 | re->subdir = 1; |
| 250 | re->u.dir = read_coff_res_dir (finfo->data + rva, finfo, type, |
| 251 | level + 1); |
| 252 | } |
| 253 | else |
| 254 | { |
| 255 | if (rva >= (size_t) (finfo->data_end - finfo->data)) |
| 256 | overrun (finfo, _("named resource")); |
| 257 | re->subdir = 0; |
| 258 | re->u.res = read_coff_data_entry (finfo->data + rva, finfo, type); |
| 259 | } |
| 260 | |
| 261 | *pp = re; |
| 262 | pp = &re->next; |
| 263 | } |
| 264 | |
| 265 | for (i = 0; i < id_count; i++, ere++) |
| 266 | { |
| 267 | unsigned long name, rva; |
| 268 | struct res_entry *re; |
| 269 | |
| 270 | if ((const bfd_byte *) ere >= finfo->data_end) |
| 271 | overrun (finfo, _("ID directory entry")); |
| 272 | |
| 273 | name = getfi_32 (finfo, ere->name); |
| 274 | rva = getfi_32 (finfo, ere->rva); |
| 275 | |
| 276 | re = (struct res_entry *) res_alloc (sizeof *re); |
| 277 | re->next = NULL; |
| 278 | re->id.named = 0; |
| 279 | re->id.u.id = name; |
| 280 | |
| 281 | if (level == 0) |
| 282 | type = &re->id; |
| 283 | |
| 284 | if ((rva & 0x80000000) != 0) |
| 285 | { |
| 286 | rva &=~ 0x80000000; |
| 287 | if (rva >= (size_t) (finfo->data_end - finfo->data)) |
| 288 | overrun (finfo, _("ID subdirectory")); |
| 289 | re->subdir = 1; |
| 290 | re->u.dir = read_coff_res_dir (finfo->data + rva, finfo, type, |
| 291 | level + 1); |
| 292 | } |
| 293 | else |
| 294 | { |
| 295 | if (rva >= (size_t) (finfo->data_end - finfo->data)) |
| 296 | overrun (finfo, _("ID resource")); |
| 297 | re->subdir = 0; |
| 298 | re->u.res = read_coff_data_entry (finfo->data + rva, finfo, type); |
| 299 | } |
| 300 | |
| 301 | *pp = re; |
| 302 | pp = &re->next; |
| 303 | } |
| 304 | |
| 305 | return rd; |
| 306 | } |
| 307 | |
| 308 | /* Read a resource data entry. */ |
| 309 | |
| 310 | static struct res_resource * |
| 311 | read_coff_data_entry (const bfd_byte *data, const struct coff_file_info *finfo, const struct res_id *type) |
| 312 | { |
| 313 | const struct extern_res_data *erd; |
| 314 | struct res_resource *r; |
| 315 | unsigned long size, rva; |
| 316 | const bfd_byte *resdata; |
| 317 | |
| 318 | if (type == NULL) |
| 319 | fatal (_("resource type unknown")); |
| 320 | |
| 321 | if ((size_t) (finfo->data_end - data) < sizeof (struct extern_res_data)) |
| 322 | overrun (finfo, _("data entry")); |
| 323 | |
| 324 | erd = (const struct extern_res_data *) data; |
| 325 | |
| 326 | size = getfi_32 (finfo, erd->size); |
| 327 | rva = getfi_32 (finfo, erd->rva); |
| 328 | if (rva < finfo->secaddr |
| 329 | || rva - finfo->secaddr >= (size_t) (finfo->data_end - finfo->data)) |
| 330 | overrun (finfo, _("resource data")); |
| 331 | |
| 332 | resdata = finfo->data + (rva - finfo->secaddr); |
| 333 | |
| 334 | if (size > (size_t) (finfo->data_end - resdata)) |
| 335 | overrun (finfo, _("resource data size")); |
| 336 | |
| 337 | r = bin_to_res (*type, resdata, size, finfo->big_endian); |
| 338 | |
| 339 | memset (&r->res_info, 0, sizeof (struct res_res_info)); |
| 340 | r->coff_info.codepage = getfi_32 (finfo, erd->codepage); |
| 341 | r->coff_info.reserved = getfi_32 (finfo, erd->reserved); |
| 342 | |
| 343 | return r; |
| 344 | } |
| 345 | \f |
| 346 | /* This structure is used to build a list of bindata structures. */ |
| 347 | |
| 348 | struct bindata_build |
| 349 | { |
| 350 | /* The data. */ |
| 351 | struct bindata *d; |
| 352 | /* The last structure we have added to the list. */ |
| 353 | struct bindata *last; |
| 354 | /* The size of the list as a whole. */ |
| 355 | unsigned long length; |
| 356 | }; |
| 357 | |
| 358 | /* This structure keeps track of information as we build the directory |
| 359 | tree. */ |
| 360 | |
| 361 | struct coff_write_info |
| 362 | { |
| 363 | /* These fields are based on the BFD. */ |
| 364 | /* The BFD itself. */ |
| 365 | bfd *abfd; |
| 366 | /* Non-zero if the file is big endian. */ |
| 367 | int big_endian; |
| 368 | /* Pointer to section symbol used to build RVA relocs. */ |
| 369 | asymbol **sympp; |
| 370 | |
| 371 | /* These fields are computed initially, and then not changed. */ |
| 372 | /* Length of directory tables and entries. */ |
| 373 | unsigned long dirsize; |
| 374 | /* Length of directory entry strings. */ |
| 375 | unsigned long dirstrsize; |
| 376 | /* Length of resource data entries. */ |
| 377 | unsigned long dataentsize; |
| 378 | |
| 379 | /* These fields are updated as we add data. */ |
| 380 | /* Directory tables and entries. */ |
| 381 | struct bindata_build dirs; |
| 382 | /* Directory entry strings. */ |
| 383 | struct bindata_build dirstrs; |
| 384 | /* Resource data entries. */ |
| 385 | struct bindata_build dataents; |
| 386 | /* Actual resource data. */ |
| 387 | struct bindata_build resources; |
| 388 | /* Relocations. */ |
| 389 | arelent **relocs; |
| 390 | /* Number of relocations. */ |
| 391 | unsigned int reloc_count; |
| 392 | }; |
| 393 | |
| 394 | /* Macros to swap out values. */ |
| 395 | |
| 396 | #define putcwi_16(cwi, v, s) \ |
| 397 | ((cwi->big_endian) ? bfd_putb16 ((v), (s)) : bfd_putl16 ((v), (s))) |
| 398 | #define putcwi_32(cwi, v, s) \ |
| 399 | ((cwi->big_endian) ? bfd_putb32 ((v), (s)) : bfd_putl32 ((v), (s))) |
| 400 | |
| 401 | static void coff_bin_sizes |
| 402 | (const struct res_directory *, struct coff_write_info *); |
| 403 | static unsigned char *coff_alloc (struct bindata_build *, size_t); |
| 404 | static void coff_to_bin |
| 405 | (const struct res_directory *, struct coff_write_info *); |
| 406 | static void coff_res_to_bin |
| 407 | (const struct res_resource *, struct coff_write_info *); |
| 408 | |
| 409 | /* Write resources to a COFF file. RESOURCES should already be |
| 410 | sorted. |
| 411 | |
| 412 | Right now we always create a new file. Someday we should also |
| 413 | offer the ability to merge resources into an existing file. This |
| 414 | would require doing the basic work of objcopy, just modifying or |
| 415 | adding the .rsrc section. */ |
| 416 | |
| 417 | void |
| 418 | write_coff_file (const char *filename, const char *target, |
| 419 | const struct res_directory *resources) |
| 420 | { |
| 421 | bfd *abfd; |
| 422 | asection *sec; |
| 423 | struct coff_write_info cwi; |
| 424 | struct bindata *d; |
| 425 | unsigned long length, offset; |
| 426 | |
| 427 | if (filename == NULL) |
| 428 | fatal (_("filename required for COFF output")); |
| 429 | |
| 430 | abfd = bfd_openw (filename, target); |
| 431 | if (abfd == NULL) |
| 432 | bfd_fatal (filename); |
| 433 | |
| 434 | if (! bfd_set_format (abfd, bfd_object)) |
| 435 | bfd_fatal ("bfd_set_format"); |
| 436 | |
| 437 | #if defined DLLTOOL_SH |
| 438 | if (! bfd_set_arch_mach (abfd, bfd_arch_sh, 0)) |
| 439 | bfd_fatal ("bfd_set_arch_mach(sh)"); |
| 440 | #elif defined DLLTOOL_MIPS |
| 441 | if (! bfd_set_arch_mach (abfd, bfd_arch_mips, 0)) |
| 442 | bfd_fatal ("bfd_set_arch_mach(mips)"); |
| 443 | #elif defined DLLTOOL_ARM |
| 444 | if (! bfd_set_arch_mach (abfd, bfd_arch_arm, 0)) |
| 445 | bfd_fatal ("bfd_set_arch_mach(arm)"); |
| 446 | #else |
| 447 | /* FIXME: This is obviously i386 specific. */ |
| 448 | if (! bfd_set_arch_mach (abfd, bfd_arch_i386, 0)) |
| 449 | bfd_fatal ("bfd_set_arch_mach(i386)"); |
| 450 | #endif |
| 451 | |
| 452 | if (! bfd_set_file_flags (abfd, HAS_SYMS | HAS_RELOC)) |
| 453 | bfd_fatal ("bfd_set_file_flags"); |
| 454 | |
| 455 | sec = bfd_make_section (abfd, ".rsrc"); |
| 456 | if (sec == NULL) |
| 457 | bfd_fatal ("bfd_make_section"); |
| 458 | |
| 459 | if (! bfd_set_section_flags (abfd, sec, |
| 460 | (SEC_HAS_CONTENTS | SEC_ALLOC |
| 461 | | SEC_LOAD | SEC_DATA))) |
| 462 | bfd_fatal ("bfd_set_section_flags"); |
| 463 | |
| 464 | if (! bfd_set_symtab (abfd, sec->symbol_ptr_ptr, 1)) |
| 465 | bfd_fatal ("bfd_set_symtab"); |
| 466 | |
| 467 | /* Requiring this is probably a bug in BFD. */ |
| 468 | sec->output_section = sec; |
| 469 | |
| 470 | /* The order of data in the .rsrc section is |
| 471 | resource directory tables and entries |
| 472 | resource directory strings |
| 473 | resource data entries |
| 474 | actual resource data |
| 475 | |
| 476 | We build these different types of data in different lists. */ |
| 477 | |
| 478 | cwi.abfd = abfd; |
| 479 | cwi.big_endian = bfd_big_endian (abfd); |
| 480 | cwi.sympp = sec->symbol_ptr_ptr; |
| 481 | cwi.dirsize = 0; |
| 482 | cwi.dirstrsize = 0; |
| 483 | cwi.dataentsize = 0; |
| 484 | cwi.dirs.d = NULL; |
| 485 | cwi.dirs.last = NULL; |
| 486 | cwi.dirs.length = 0; |
| 487 | cwi.dirstrs.d = NULL; |
| 488 | cwi.dirstrs.last = NULL; |
| 489 | cwi.dirstrs.length = 0; |
| 490 | cwi.dataents.d = NULL; |
| 491 | cwi.dataents.last = NULL; |
| 492 | cwi.dataents.length = 0; |
| 493 | cwi.resources.d = NULL; |
| 494 | cwi.resources.last = NULL; |
| 495 | cwi.resources.length = 0; |
| 496 | cwi.relocs = NULL; |
| 497 | cwi.reloc_count = 0; |
| 498 | |
| 499 | /* Work out the sizes of the resource directory entries, so that we |
| 500 | know the various offsets we will need. */ |
| 501 | coff_bin_sizes (resources, &cwi); |
| 502 | |
| 503 | /* Force the directory strings to be 32 bit aligned. Every other |
| 504 | structure is 32 bit aligned anyhow. */ |
| 505 | cwi.dirstrsize = (cwi.dirstrsize + 3) &~ 3; |
| 506 | |
| 507 | /* Actually convert the resources to binary. */ |
| 508 | coff_to_bin (resources, &cwi); |
| 509 | |
| 510 | /* Add another 2 bytes to the directory strings if needed for |
| 511 | alignment. */ |
| 512 | if ((cwi.dirstrs.length & 3) != 0) |
| 513 | { |
| 514 | unsigned char *ex; |
| 515 | |
| 516 | ex = coff_alloc (&cwi.dirstrs, 2); |
| 517 | ex[0] = 0; |
| 518 | ex[1] = 0; |
| 519 | } |
| 520 | |
| 521 | /* Make sure that the data we built came out to the same size as we |
| 522 | calculated initially. */ |
| 523 | assert (cwi.dirs.length == cwi.dirsize); |
| 524 | assert (cwi.dirstrs.length == cwi.dirstrsize); |
| 525 | assert (cwi.dataents.length == cwi.dataentsize); |
| 526 | |
| 527 | length = (cwi.dirsize |
| 528 | + cwi.dirstrsize |
| 529 | + cwi.dataentsize |
| 530 | + cwi.resources.length); |
| 531 | |
| 532 | if (! bfd_set_section_size (abfd, sec, length)) |
| 533 | bfd_fatal ("bfd_set_section_size"); |
| 534 | |
| 535 | bfd_set_reloc (abfd, sec, cwi.relocs, cwi.reloc_count); |
| 536 | |
| 537 | offset = 0; |
| 538 | for (d = cwi.dirs.d; d != NULL; d = d->next) |
| 539 | { |
| 540 | if (! bfd_set_section_contents (abfd, sec, d->data, offset, d->length)) |
| 541 | bfd_fatal ("bfd_set_section_contents"); |
| 542 | offset += d->length; |
| 543 | } |
| 544 | for (d = cwi.dirstrs.d; d != NULL; d = d->next) |
| 545 | { |
| 546 | if (! bfd_set_section_contents (abfd, sec, d->data, offset, d->length)) |
| 547 | bfd_fatal ("bfd_set_section_contents"); |
| 548 | offset += d->length; |
| 549 | } |
| 550 | for (d = cwi.dataents.d; d != NULL; d = d->next) |
| 551 | { |
| 552 | if (! bfd_set_section_contents (abfd, sec, d->data, offset, d->length)) |
| 553 | bfd_fatal ("bfd_set_section_contents"); |
| 554 | offset += d->length; |
| 555 | } |
| 556 | for (d = cwi.resources.d; d != NULL; d = d->next) |
| 557 | { |
| 558 | if (! bfd_set_section_contents (abfd, sec, d->data, offset, d->length)) |
| 559 | bfd_fatal ("bfd_set_section_contents"); |
| 560 | offset += d->length; |
| 561 | } |
| 562 | |
| 563 | assert (offset == length); |
| 564 | |
| 565 | if (! bfd_close (abfd)) |
| 566 | bfd_fatal ("bfd_close"); |
| 567 | |
| 568 | /* We allocated the relocs array using malloc. */ |
| 569 | free (cwi.relocs); |
| 570 | } |
| 571 | |
| 572 | /* Work out the sizes of the various fixed size resource directory |
| 573 | entries. This updates fields in CWI. */ |
| 574 | |
| 575 | static void |
| 576 | coff_bin_sizes (const struct res_directory *resdir, |
| 577 | struct coff_write_info *cwi) |
| 578 | { |
| 579 | const struct res_entry *re; |
| 580 | |
| 581 | cwi->dirsize += sizeof (struct extern_res_directory); |
| 582 | |
| 583 | for (re = resdir->entries; re != NULL; re = re->next) |
| 584 | { |
| 585 | cwi->dirsize += sizeof (struct extern_res_entry); |
| 586 | |
| 587 | if (re->id.named) |
| 588 | cwi->dirstrsize += re->id.u.n.length * 2 + 2; |
| 589 | |
| 590 | if (re->subdir) |
| 591 | coff_bin_sizes (re->u.dir, cwi); |
| 592 | else |
| 593 | cwi->dataentsize += sizeof (struct extern_res_data); |
| 594 | } |
| 595 | } |
| 596 | |
| 597 | /* Allocate data for a particular list. */ |
| 598 | |
| 599 | static unsigned char * |
| 600 | coff_alloc (struct bindata_build *bb, size_t size) |
| 601 | { |
| 602 | struct bindata *d; |
| 603 | |
| 604 | d = (struct bindata *) reswr_alloc (sizeof *d); |
| 605 | |
| 606 | d->next = NULL; |
| 607 | d->data = (unsigned char *) reswr_alloc (size); |
| 608 | d->length = size; |
| 609 | |
| 610 | if (bb->d == NULL) |
| 611 | bb->d = d; |
| 612 | else |
| 613 | bb->last->next = d; |
| 614 | bb->last = d; |
| 615 | bb->length += size; |
| 616 | |
| 617 | return d->data; |
| 618 | } |
| 619 | |
| 620 | /* Convert the resource directory RESDIR to binary. */ |
| 621 | |
| 622 | static void |
| 623 | coff_to_bin (const struct res_directory *resdir, struct coff_write_info *cwi) |
| 624 | { |
| 625 | struct extern_res_directory *erd; |
| 626 | int ci, cn; |
| 627 | const struct res_entry *e; |
| 628 | struct extern_res_entry *ere; |
| 629 | |
| 630 | /* Write out the directory table. */ |
| 631 | |
| 632 | erd = ((struct extern_res_directory *) |
| 633 | coff_alloc (&cwi->dirs, sizeof (*erd))); |
| 634 | |
| 635 | putcwi_32 (cwi, resdir->characteristics, erd->characteristics); |
| 636 | putcwi_32 (cwi, resdir->time, erd->time); |
| 637 | putcwi_16 (cwi, resdir->major, erd->major); |
| 638 | putcwi_16 (cwi, resdir->minor, erd->minor); |
| 639 | |
| 640 | ci = 0; |
| 641 | cn = 0; |
| 642 | for (e = resdir->entries; e != NULL; e = e->next) |
| 643 | { |
| 644 | if (e->id.named) |
| 645 | ++cn; |
| 646 | else |
| 647 | ++ci; |
| 648 | } |
| 649 | |
| 650 | putcwi_16 (cwi, cn, erd->name_count); |
| 651 | putcwi_16 (cwi, ci, erd->id_count); |
| 652 | |
| 653 | /* Write out the data entries. Note that we allocate space for all |
| 654 | the entries before writing them out. That permits a recursive |
| 655 | call to work correctly when writing out subdirectories. */ |
| 656 | |
| 657 | ere = ((struct extern_res_entry *) |
| 658 | coff_alloc (&cwi->dirs, (ci + cn) * sizeof (*ere))); |
| 659 | for (e = resdir->entries; e != NULL; e = e->next, ere++) |
| 660 | { |
| 661 | if (! e->id.named) |
| 662 | putcwi_32 (cwi, e->id.u.id, ere->name); |
| 663 | else |
| 664 | { |
| 665 | unsigned char *str; |
| 666 | int i; |
| 667 | |
| 668 | /* For some reason existing files seem to have the high bit |
| 669 | set on the address of the name, although that is not |
| 670 | documented. */ |
| 671 | putcwi_32 (cwi, |
| 672 | 0x80000000 | (cwi->dirsize + cwi->dirstrs.length), |
| 673 | ere->name); |
| 674 | |
| 675 | str = coff_alloc (&cwi->dirstrs, e->id.u.n.length * 2 + 2); |
| 676 | putcwi_16 (cwi, e->id.u.n.length, str); |
| 677 | for (i = 0; i < e->id.u.n.length; i++) |
| 678 | putcwi_16 (cwi, e->id.u.n.name[i], str + i * 2 + 2); |
| 679 | } |
| 680 | |
| 681 | if (e->subdir) |
| 682 | { |
| 683 | putcwi_32 (cwi, 0x80000000 | cwi->dirs.length, ere->rva); |
| 684 | coff_to_bin (e->u.dir, cwi); |
| 685 | } |
| 686 | else |
| 687 | { |
| 688 | putcwi_32 (cwi, |
| 689 | cwi->dirsize + cwi->dirstrsize + cwi->dataents.length, |
| 690 | ere->rva); |
| 691 | |
| 692 | coff_res_to_bin (e->u.res, cwi); |
| 693 | } |
| 694 | } |
| 695 | } |
| 696 | |
| 697 | /* Convert the resource RES to binary. */ |
| 698 | |
| 699 | static void |
| 700 | coff_res_to_bin (const struct res_resource *res, struct coff_write_info *cwi) |
| 701 | { |
| 702 | arelent *r; |
| 703 | struct extern_res_data *erd; |
| 704 | struct bindata *d; |
| 705 | unsigned long length; |
| 706 | |
| 707 | /* For some reason, although every other address is a section |
| 708 | offset, the address of the resource data itself is an RVA. That |
| 709 | means that we need to generate a relocation for it. We allocate |
| 710 | the relocs array using malloc so that we can use realloc. FIXME: |
| 711 | This relocation handling is correct for the i386, but probably |
| 712 | not for any other target. */ |
| 713 | |
| 714 | r = (arelent *) reswr_alloc (sizeof (arelent)); |
| 715 | r->sym_ptr_ptr = cwi->sympp; |
| 716 | r->address = cwi->dirsize + cwi->dirstrsize + cwi->dataents.length; |
| 717 | r->addend = 0; |
| 718 | r->howto = bfd_reloc_type_lookup (cwi->abfd, BFD_RELOC_RVA); |
| 719 | if (r->howto == NULL) |
| 720 | bfd_fatal (_("can't get BFD_RELOC_RVA relocation type")); |
| 721 | |
| 722 | cwi->relocs = xrealloc (cwi->relocs, |
| 723 | (cwi->reloc_count + 2) * sizeof (arelent *)); |
| 724 | cwi->relocs[cwi->reloc_count] = r; |
| 725 | cwi->relocs[cwi->reloc_count + 1] = NULL; |
| 726 | ++cwi->reloc_count; |
| 727 | |
| 728 | erd = (struct extern_res_data *) coff_alloc (&cwi->dataents, sizeof (*erd)); |
| 729 | |
| 730 | putcwi_32 (cwi, |
| 731 | (cwi->dirsize |
| 732 | + cwi->dirstrsize |
| 733 | + cwi->dataentsize |
| 734 | + cwi->resources.length), |
| 735 | erd->rva); |
| 736 | putcwi_32 (cwi, res->coff_info.codepage, erd->codepage); |
| 737 | putcwi_32 (cwi, res->coff_info.reserved, erd->reserved); |
| 738 | |
| 739 | d = res_to_bin (res, cwi->big_endian); |
| 740 | |
| 741 | if (cwi->resources.d == NULL) |
| 742 | cwi->resources.d = d; |
| 743 | else |
| 744 | cwi->resources.last->next = d; |
| 745 | |
| 746 | length = 0; |
| 747 | for (; d->next != NULL; d = d->next) |
| 748 | length += d->length; |
| 749 | length += d->length; |
| 750 | cwi->resources.last = d; |
| 751 | cwi->resources.length += length; |
| 752 | |
| 753 | putcwi_32 (cwi, length, erd->size); |
| 754 | |
| 755 | /* Force the next resource to have 32 bit alignment. */ |
| 756 | |
| 757 | if ((length & 3) != 0) |
| 758 | { |
| 759 | int add; |
| 760 | unsigned char *ex; |
| 761 | |
| 762 | add = 4 - (length & 3); |
| 763 | |
| 764 | ex = coff_alloc (&cwi->resources, add); |
| 765 | memset (ex, 0, add); |
| 766 | } |
| 767 | } |