Commit | Line | Data |
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252b5132 | 1 | /* rescoff.c -- read and write resources in Windows COFF files. |
2da42df6 AJ |
2 | Copyright 1997, 1998, 1999, 2000, 2003 |
3 | Free Software Foundation, Inc. | |
252b5132 RH |
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., 59 Temple Place - Suite 330, Boston, MA | |
21 | 02111-1307, USA. */ | |
22 | ||
23 | /* This file contains function that read and write Windows resources | |
24 | in COFF files. */ | |
25 | ||
26 | #include "bfd.h" | |
27 | #include "bucomm.h" | |
28 | #include "libiberty.h" | |
29 | #include "windres.h" | |
30 | ||
31 | #include <assert.h> | |
32 | ||
33 | /* In order to use the address of a resource data entry, we need to | |
34 | get the image base of the file. Right now we extract it from | |
35 | internal BFD information. FIXME. */ | |
36 | ||
37 | #include "coff/internal.h" | |
38 | #include "libcoff.h" | |
39 | ||
40 | /* Information we extract from the file. */ | |
41 | ||
42 | struct coff_file_info | |
43 | { | |
44 | /* File name. */ | |
45 | const char *filename; | |
46 | /* Data read from the file. */ | |
47 | const bfd_byte *data; | |
48 | /* End of data read from file. */ | |
49 | const bfd_byte *data_end; | |
50 | /* Address of the resource section minus the image base of the file. */ | |
51 | bfd_vma secaddr; | |
52 | /* Non-zero if the file is big endian. */ | |
53 | int big_endian; | |
54 | }; | |
55 | ||
56 | /* A resource directory table in a COFF file. */ | |
57 | ||
58 | struct extern_res_directory | |
59 | { | |
60 | /* Characteristics. */ | |
61 | bfd_byte characteristics[4]; | |
62 | /* Time stamp. */ | |
63 | bfd_byte time[4]; | |
64 | /* Major version number. */ | |
65 | bfd_byte major[2]; | |
66 | /* Minor version number. */ | |
67 | bfd_byte minor[2]; | |
68 | /* Number of named directory entries. */ | |
69 | bfd_byte name_count[2]; | |
70 | /* Number of directory entries with IDs. */ | |
71 | bfd_byte id_count[2]; | |
72 | }; | |
73 | ||
74 | /* A resource directory entry in a COFF file. */ | |
75 | ||
76 | struct extern_res_entry | |
77 | { | |
78 | /* Name or ID. */ | |
79 | bfd_byte name[4]; | |
80 | /* Address of resource entry or subdirectory. */ | |
81 | bfd_byte rva[4]; | |
82 | }; | |
83 | ||
84 | /* A resource data entry in a COFF file. */ | |
85 | ||
86 | struct extern_res_data | |
87 | { | |
88 | /* Address of resource data. This is apparently a file relative | |
89 | address, rather than a section offset. */ | |
90 | bfd_byte rva[4]; | |
91 | /* Size of resource data. */ | |
92 | bfd_byte size[4]; | |
93 | /* Code page. */ | |
94 | bfd_byte codepage[4]; | |
95 | /* Reserved. */ | |
96 | bfd_byte reserved[4]; | |
97 | }; | |
98 | ||
99 | /* Macros to swap in values. */ | |
100 | ||
101 | #define getfi_16(fi, s) ((fi)->big_endian ? bfd_getb16 (s) : bfd_getl16 (s)) | |
102 | #define getfi_32(fi, s) ((fi)->big_endian ? bfd_getb32 (s) : bfd_getl32 (s)) | |
103 | ||
104 | /* Local functions. */ | |
105 | ||
2da42df6 | 106 | static void overrun (const struct coff_file_info *, const char *); |
252b5132 | 107 | static struct res_directory *read_coff_res_dir |
2da42df6 AJ |
108 | (const bfd_byte *, const struct coff_file_info *, |
109 | const struct res_id *, int); | |
252b5132 | 110 | static struct res_resource *read_coff_data_entry |
2da42df6 | 111 | (const bfd_byte *, const struct coff_file_info *, const struct res_id *); |
252b5132 RH |
112 | \f |
113 | /* Read the resources in a COFF file. */ | |
114 | ||
115 | struct res_directory * | |
2da42df6 | 116 | read_coff_rsrc (const char *filename, const char *target) |
252b5132 RH |
117 | { |
118 | bfd *abfd; | |
119 | char **matching; | |
120 | asection *sec; | |
121 | bfd_size_type size; | |
122 | bfd_byte *data; | |
123 | struct coff_file_info finfo; | |
124 | ||
125 | if (filename == NULL) | |
126 | fatal (_("filename required for COFF input")); | |
127 | ||
128 | abfd = bfd_openr (filename, target); | |
129 | if (abfd == NULL) | |
130 | bfd_fatal (filename); | |
131 | ||
132 | if (! bfd_check_format_matches (abfd, bfd_object, &matching)) | |
133 | { | |
134 | bfd_nonfatal (bfd_get_filename (abfd)); | |
135 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized) | |
136 | list_matching_formats (matching); | |
137 | xexit (1); | |
138 | } | |
139 | ||
140 | sec = bfd_get_section_by_name (abfd, ".rsrc"); | |
141 | if (sec == NULL) | |
142 | { | |
37cc8ec1 | 143 | fatal (_("%s: no resource section"), filename); |
252b5132 RH |
144 | } |
145 | ||
146 | size = bfd_section_size (abfd, sec); | |
147 | data = (bfd_byte *) res_alloc (size); | |
148 | ||
149 | if (! bfd_get_section_contents (abfd, sec, data, 0, size)) | |
150 | bfd_fatal (_("can't read resource section")); | |
151 | ||
152 | finfo.filename = filename; | |
153 | finfo.data = data; | |
154 | finfo.data_end = data + size; | |
155 | finfo.secaddr = (bfd_get_section_vma (abfd, sec) | |
156 | - pe_data (abfd)->pe_opthdr.ImageBase); | |
157 | finfo.big_endian = bfd_big_endian (abfd); | |
158 | ||
159 | bfd_close (abfd); | |
160 | ||
161 | /* Now just read in the top level resource directory. Note that we | |
162 | don't free data, since we create resource entries that point into | |
163 | it. If we ever want to free up the resource information we read, | |
164 | this will have to be cleaned up. */ | |
165 | ||
166 | return read_coff_res_dir (data, &finfo, (const struct res_id *) NULL, 0); | |
167 | } | |
168 | ||
169 | /* Give an error if we are out of bounds. */ | |
170 | ||
171 | static void | |
2da42df6 | 172 | overrun (const struct coff_file_info *finfo, const char *msg) |
252b5132 RH |
173 | { |
174 | fatal (_("%s: %s: address out of bounds"), finfo->filename, msg); | |
175 | } | |
176 | ||
177 | /* Read a resource directory. */ | |
178 | ||
179 | static struct res_directory * | |
2da42df6 AJ |
180 | read_coff_res_dir (const bfd_byte *data, const struct coff_file_info *finfo, |
181 | const struct res_id *type, int level) | |
252b5132 RH |
182 | { |
183 | const struct extern_res_directory *erd; | |
184 | struct res_directory *rd; | |
185 | int name_count, id_count, i; | |
186 | struct res_entry **pp; | |
187 | const struct extern_res_entry *ere; | |
188 | ||
189 | if ((size_t) (finfo->data_end - data) < sizeof (struct extern_res_directory)) | |
190 | overrun (finfo, _("directory")); | |
191 | ||
192 | erd = (const struct extern_res_directory *) data; | |
193 | ||
194 | rd = (struct res_directory *) res_alloc (sizeof *rd); | |
195 | rd->characteristics = getfi_32 (finfo, erd->characteristics); | |
196 | rd->time = getfi_32 (finfo, erd->time); | |
197 | rd->major = getfi_16 (finfo, erd->major); | |
198 | rd->minor = getfi_16 (finfo, erd->minor); | |
199 | rd->entries = NULL; | |
200 | ||
201 | name_count = getfi_16 (finfo, erd->name_count); | |
202 | id_count = getfi_16 (finfo, erd->id_count); | |
203 | ||
204 | pp = &rd->entries; | |
205 | ||
206 | /* The resource directory entries immediately follow the directory | |
207 | table. */ | |
208 | ere = (const struct extern_res_entry *) (erd + 1); | |
209 | ||
210 | for (i = 0; i < name_count; i++, ere++) | |
211 | { | |
212 | unsigned long name, rva; | |
213 | struct res_entry *re; | |
214 | const bfd_byte *ers; | |
215 | int length, j; | |
216 | ||
217 | if ((const bfd_byte *) ere >= finfo->data_end) | |
218 | overrun (finfo, _("named directory entry")); | |
219 | ||
220 | name = getfi_32 (finfo, ere->name); | |
221 | rva = getfi_32 (finfo, ere->rva); | |
222 | ||
223 | /* For some reason the high bit in NAME is set. */ | |
224 | name &=~ 0x80000000; | |
225 | ||
226 | if (name > (size_t) (finfo->data_end - finfo->data)) | |
227 | overrun (finfo, _("directory entry name")); | |
228 | ||
229 | ers = finfo->data + name; | |
230 | ||
231 | re = (struct res_entry *) res_alloc (sizeof *re); | |
232 | re->next = NULL; | |
233 | re->id.named = 1; | |
234 | length = getfi_16 (finfo, ers); | |
235 | re->id.u.n.length = length; | |
236 | re->id.u.n.name = (unichar *) res_alloc (length * sizeof (unichar)); | |
237 | for (j = 0; j < length; j++) | |
238 | re->id.u.n.name[j] = getfi_16 (finfo, ers + j * 2 + 2); | |
239 | ||
240 | if (level == 0) | |
241 | type = &re->id; | |
242 | ||
243 | if ((rva & 0x80000000) != 0) | |
244 | { | |
245 | rva &=~ 0x80000000; | |
246 | if (rva >= (size_t) (finfo->data_end - finfo->data)) | |
247 | overrun (finfo, _("named subdirectory")); | |
248 | re->subdir = 1; | |
249 | re->u.dir = read_coff_res_dir (finfo->data + rva, finfo, type, | |
250 | level + 1); | |
251 | } | |
252 | else | |
253 | { | |
254 | if (rva >= (size_t) (finfo->data_end - finfo->data)) | |
255 | overrun (finfo, _("named resource")); | |
256 | re->subdir = 0; | |
257 | re->u.res = read_coff_data_entry (finfo->data + rva, finfo, type); | |
258 | } | |
259 | ||
260 | *pp = re; | |
261 | pp = &re->next; | |
262 | } | |
263 | ||
264 | for (i = 0; i < id_count; i++, ere++) | |
265 | { | |
266 | unsigned long name, rva; | |
267 | struct res_entry *re; | |
268 | ||
269 | if ((const bfd_byte *) ere >= finfo->data_end) | |
270 | overrun (finfo, _("ID directory entry")); | |
271 | ||
272 | name = getfi_32 (finfo, ere->name); | |
273 | rva = getfi_32 (finfo, ere->rva); | |
274 | ||
275 | re = (struct res_entry *) res_alloc (sizeof *re); | |
276 | re->next = NULL; | |
277 | re->id.named = 0; | |
278 | re->id.u.id = name; | |
279 | ||
280 | if (level == 0) | |
281 | type = &re->id; | |
282 | ||
283 | if ((rva & 0x80000000) != 0) | |
284 | { | |
285 | rva &=~ 0x80000000; | |
286 | if (rva >= (size_t) (finfo->data_end - finfo->data)) | |
287 | overrun (finfo, _("ID subdirectory")); | |
288 | re->subdir = 1; | |
289 | re->u.dir = read_coff_res_dir (finfo->data + rva, finfo, type, | |
290 | level + 1); | |
291 | } | |
292 | else | |
293 | { | |
294 | if (rva >= (size_t) (finfo->data_end - finfo->data)) | |
295 | overrun (finfo, _("ID resource")); | |
296 | re->subdir = 0; | |
297 | re->u.res = read_coff_data_entry (finfo->data + rva, finfo, type); | |
298 | } | |
299 | ||
300 | *pp = re; | |
301 | pp = &re->next; | |
302 | } | |
303 | ||
304 | return rd; | |
305 | } | |
306 | ||
307 | /* Read a resource data entry. */ | |
308 | ||
309 | static struct res_resource * | |
2da42df6 | 310 | read_coff_data_entry (const bfd_byte *data, const struct coff_file_info *finfo, const struct res_id *type) |
252b5132 RH |
311 | { |
312 | const struct extern_res_data *erd; | |
313 | struct res_resource *r; | |
314 | unsigned long size, rva; | |
315 | const bfd_byte *resdata; | |
316 | ||
317 | if (type == NULL) | |
318 | fatal (_("resource type unknown")); | |
319 | ||
320 | if ((size_t) (finfo->data_end - data) < sizeof (struct extern_res_data)) | |
321 | overrun (finfo, _("data entry")); | |
322 | ||
323 | erd = (const struct extern_res_data *) data; | |
324 | ||
325 | size = getfi_32 (finfo, erd->size); | |
326 | rva = getfi_32 (finfo, erd->rva); | |
327 | if (rva < finfo->secaddr | |
328 | || rva - finfo->secaddr >= (size_t) (finfo->data_end - finfo->data)) | |
329 | overrun (finfo, _("resource data")); | |
330 | ||
331 | resdata = finfo->data + (rva - finfo->secaddr); | |
332 | ||
333 | if (size > (size_t) (finfo->data_end - resdata)) | |
334 | overrun (finfo, _("resource data size")); | |
335 | ||
336 | r = bin_to_res (*type, resdata, size, finfo->big_endian); | |
337 | ||
338 | memset (&r->res_info, 0, sizeof (struct res_res_info)); | |
339 | r->coff_info.codepage = getfi_32 (finfo, erd->codepage); | |
340 | r->coff_info.reserved = getfi_32 (finfo, erd->reserved); | |
341 | ||
342 | return r; | |
343 | } | |
344 | \f | |
345 | /* This structure is used to build a list of bindata structures. */ | |
346 | ||
347 | struct bindata_build | |
348 | { | |
349 | /* The data. */ | |
350 | struct bindata *d; | |
351 | /* The last structure we have added to the list. */ | |
352 | struct bindata *last; | |
353 | /* The size of the list as a whole. */ | |
354 | unsigned long length; | |
355 | }; | |
356 | ||
357 | /* This structure keeps track of information as we build the directory | |
358 | tree. */ | |
359 | ||
360 | struct coff_write_info | |
361 | { | |
362 | /* These fields are based on the BFD. */ | |
363 | /* The BFD itself. */ | |
364 | bfd *abfd; | |
365 | /* Non-zero if the file is big endian. */ | |
366 | int big_endian; | |
367 | /* Pointer to section symbol used to build RVA relocs. */ | |
368 | asymbol **sympp; | |
369 | ||
370 | /* These fields are computed initially, and then not changed. */ | |
371 | /* Length of directory tables and entries. */ | |
372 | unsigned long dirsize; | |
373 | /* Length of directory entry strings. */ | |
374 | unsigned long dirstrsize; | |
375 | /* Length of resource data entries. */ | |
376 | unsigned long dataentsize; | |
377 | ||
378 | /* These fields are updated as we add data. */ | |
379 | /* Directory tables and entries. */ | |
380 | struct bindata_build dirs; | |
381 | /* Directory entry strings. */ | |
382 | struct bindata_build dirstrs; | |
383 | /* Resource data entries. */ | |
384 | struct bindata_build dataents; | |
385 | /* Actual resource data. */ | |
386 | struct bindata_build resources; | |
387 | /* Relocations. */ | |
388 | arelent **relocs; | |
389 | /* Number of relocations. */ | |
390 | unsigned int reloc_count; | |
391 | }; | |
392 | ||
393 | /* Macros to swap out values. */ | |
394 | ||
395 | #define putcwi_16(cwi, v, s) \ | |
396 | ((cwi->big_endian) ? bfd_putb16 ((v), (s)) : bfd_putl16 ((v), (s))) | |
397 | #define putcwi_32(cwi, v, s) \ | |
398 | ((cwi->big_endian) ? bfd_putb32 ((v), (s)) : bfd_putl32 ((v), (s))) | |
399 | ||
400 | static void coff_bin_sizes | |
2da42df6 AJ |
401 | (const struct res_directory *, struct coff_write_info *); |
402 | static unsigned char *coff_alloc (struct bindata_build *, size_t); | |
252b5132 | 403 | static void coff_to_bin |
2da42df6 | 404 | (const struct res_directory *, struct coff_write_info *); |
252b5132 | 405 | static void coff_res_to_bin |
2da42df6 | 406 | (const struct res_resource *, struct coff_write_info *); |
252b5132 RH |
407 | |
408 | /* Write resources to a COFF file. RESOURCES should already be | |
409 | sorted. | |
410 | ||
411 | Right now we always create a new file. Someday we should also | |
412 | offer the ability to merge resources into an existing file. This | |
413 | would require doing the basic work of objcopy, just modifying or | |
414 | adding the .rsrc section. */ | |
415 | ||
416 | void | |
2da42df6 AJ |
417 | write_coff_file (const char *filename, const char *target, |
418 | const struct res_directory *resources) | |
252b5132 RH |
419 | { |
420 | bfd *abfd; | |
421 | asection *sec; | |
422 | struct coff_write_info cwi; | |
423 | struct bindata *d; | |
424 | unsigned long length, offset; | |
425 | ||
426 | if (filename == NULL) | |
427 | fatal (_("filename required for COFF output")); | |
428 | ||
429 | abfd = bfd_openw (filename, target); | |
430 | if (abfd == NULL) | |
431 | bfd_fatal (filename); | |
432 | ||
433 | if (! bfd_set_format (abfd, bfd_object)) | |
434 | bfd_fatal ("bfd_set_format"); | |
435 | ||
8a0e0f38 NC |
436 | #if defined DLLTOOL_SH |
437 | if (! bfd_set_arch_mach (abfd, bfd_arch_sh, 0)) | |
438 | bfd_fatal ("bfd_set_arch_mach(sh)"); | |
439 | #elif defined DLLTOOL_MIPS | |
440 | if (! bfd_set_arch_mach (abfd, bfd_arch_mips, 0)) | |
441 | bfd_fatal ("bfd_set_arch_mach(mips)"); | |
442 | #elif defined DLLTOOL_ARM | |
09cda596 DD |
443 | if (! bfd_set_arch_mach (abfd, bfd_arch_arm, 0)) |
444 | bfd_fatal ("bfd_set_arch_mach(arm)"); | |
445 | #else | |
252b5132 RH |
446 | /* FIXME: This is obviously i386 specific. */ |
447 | if (! bfd_set_arch_mach (abfd, bfd_arch_i386, 0)) | |
09cda596 | 448 | bfd_fatal ("bfd_set_arch_mach(i386)"); |
8a0e0f38 | 449 | #endif |
252b5132 RH |
450 | |
451 | if (! bfd_set_file_flags (abfd, HAS_SYMS | HAS_RELOC)) | |
452 | bfd_fatal ("bfd_set_file_flags"); | |
453 | ||
454 | sec = bfd_make_section (abfd, ".rsrc"); | |
455 | if (sec == NULL) | |
456 | bfd_fatal ("bfd_make_section"); | |
457 | ||
458 | if (! bfd_set_section_flags (abfd, sec, | |
459 | (SEC_HAS_CONTENTS | SEC_ALLOC | |
460 | | SEC_LOAD | SEC_DATA))) | |
461 | bfd_fatal ("bfd_set_section_flags"); | |
462 | ||
463 | if (! bfd_set_symtab (abfd, sec->symbol_ptr_ptr, 1)) | |
464 | bfd_fatal ("bfd_set_symtab"); | |
465 | ||
466 | /* Requiring this is probably a bug in BFD. */ | |
467 | sec->output_section = sec; | |
468 | ||
469 | /* The order of data in the .rsrc section is | |
470 | resource directory tables and entries | |
471 | resource directory strings | |
472 | resource data entries | |
473 | actual resource data | |
474 | ||
475 | We build these different types of data in different lists. */ | |
476 | ||
477 | cwi.abfd = abfd; | |
478 | cwi.big_endian = bfd_big_endian (abfd); | |
479 | cwi.sympp = sec->symbol_ptr_ptr; | |
480 | cwi.dirsize = 0; | |
481 | cwi.dirstrsize = 0; | |
482 | cwi.dataentsize = 0; | |
483 | cwi.dirs.d = NULL; | |
484 | cwi.dirs.last = NULL; | |
485 | cwi.dirs.length = 0; | |
486 | cwi.dirstrs.d = NULL; | |
487 | cwi.dirstrs.last = NULL; | |
488 | cwi.dirstrs.length = 0; | |
489 | cwi.dataents.d = NULL; | |
490 | cwi.dataents.last = NULL; | |
491 | cwi.dataents.length = 0; | |
492 | cwi.resources.d = NULL; | |
493 | cwi.resources.last = NULL; | |
494 | cwi.resources.length = 0; | |
495 | cwi.relocs = NULL; | |
496 | cwi.reloc_count = 0; | |
497 | ||
498 | /* Work out the sizes of the resource directory entries, so that we | |
499 | know the various offsets we will need. */ | |
500 | coff_bin_sizes (resources, &cwi); | |
501 | ||
502 | /* Force the directory strings to be 32 bit aligned. Every other | |
503 | structure is 32 bit aligned anyhow. */ | |
504 | cwi.dirstrsize = (cwi.dirstrsize + 3) &~ 3; | |
505 | ||
506 | /* Actually convert the resources to binary. */ | |
507 | coff_to_bin (resources, &cwi); | |
508 | ||
509 | /* Add another 2 bytes to the directory strings if needed for | |
510 | alignment. */ | |
511 | if ((cwi.dirstrs.length & 3) != 0) | |
512 | { | |
513 | unsigned char *ex; | |
514 | ||
515 | ex = coff_alloc (&cwi.dirstrs, 2); | |
516 | ex[0] = 0; | |
517 | ex[1] = 0; | |
518 | } | |
519 | ||
520 | /* Make sure that the data we built came out to the same size as we | |
521 | calculated initially. */ | |
522 | assert (cwi.dirs.length == cwi.dirsize); | |
523 | assert (cwi.dirstrs.length == cwi.dirstrsize); | |
524 | assert (cwi.dataents.length == cwi.dataentsize); | |
525 | ||
526 | length = (cwi.dirsize | |
527 | + cwi.dirstrsize | |
528 | + cwi.dataentsize | |
529 | + cwi.resources.length); | |
530 | ||
531 | if (! bfd_set_section_size (abfd, sec, length)) | |
532 | bfd_fatal ("bfd_set_section_size"); | |
533 | ||
534 | bfd_set_reloc (abfd, sec, cwi.relocs, cwi.reloc_count); | |
535 | ||
536 | offset = 0; | |
537 | for (d = cwi.dirs.d; d != NULL; d = d->next) | |
538 | { | |
539 | if (! bfd_set_section_contents (abfd, sec, d->data, offset, d->length)) | |
540 | bfd_fatal ("bfd_set_section_contents"); | |
541 | offset += d->length; | |
542 | } | |
543 | for (d = cwi.dirstrs.d; d != NULL; d = d->next) | |
544 | { | |
545 | if (! bfd_set_section_contents (abfd, sec, d->data, offset, d->length)) | |
546 | bfd_fatal ("bfd_set_section_contents"); | |
547 | offset += d->length; | |
548 | } | |
549 | for (d = cwi.dataents.d; d != NULL; d = d->next) | |
550 | { | |
551 | if (! bfd_set_section_contents (abfd, sec, d->data, offset, d->length)) | |
552 | bfd_fatal ("bfd_set_section_contents"); | |
553 | offset += d->length; | |
554 | } | |
555 | for (d = cwi.resources.d; d != NULL; d = d->next) | |
556 | { | |
557 | if (! bfd_set_section_contents (abfd, sec, d->data, offset, d->length)) | |
558 | bfd_fatal ("bfd_set_section_contents"); | |
559 | offset += d->length; | |
560 | } | |
561 | ||
562 | assert (offset == length); | |
563 | ||
564 | if (! bfd_close (abfd)) | |
565 | bfd_fatal ("bfd_close"); | |
566 | ||
567 | /* We allocated the relocs array using malloc. */ | |
568 | free (cwi.relocs); | |
569 | } | |
570 | ||
571 | /* Work out the sizes of the various fixed size resource directory | |
572 | entries. This updates fields in CWI. */ | |
573 | ||
574 | static void | |
2da42df6 AJ |
575 | coff_bin_sizes (const struct res_directory *resdir, |
576 | struct coff_write_info *cwi) | |
252b5132 RH |
577 | { |
578 | const struct res_entry *re; | |
579 | ||
580 | cwi->dirsize += sizeof (struct extern_res_directory); | |
581 | ||
582 | for (re = resdir->entries; re != NULL; re = re->next) | |
583 | { | |
584 | cwi->dirsize += sizeof (struct extern_res_entry); | |
585 | ||
586 | if (re->id.named) | |
587 | cwi->dirstrsize += re->id.u.n.length * 2 + 2; | |
588 | ||
589 | if (re->subdir) | |
590 | coff_bin_sizes (re->u.dir, cwi); | |
591 | else | |
592 | cwi->dataentsize += sizeof (struct extern_res_data); | |
593 | } | |
594 | } | |
595 | ||
596 | /* Allocate data for a particular list. */ | |
597 | ||
598 | static unsigned char * | |
2da42df6 | 599 | coff_alloc (struct bindata_build *bb, size_t size) |
252b5132 RH |
600 | { |
601 | struct bindata *d; | |
602 | ||
603 | d = (struct bindata *) reswr_alloc (sizeof *d); | |
604 | ||
605 | d->next = NULL; | |
606 | d->data = (unsigned char *) reswr_alloc (size); | |
607 | d->length = size; | |
608 | ||
609 | if (bb->d == NULL) | |
610 | bb->d = d; | |
611 | else | |
612 | bb->last->next = d; | |
613 | bb->last = d; | |
614 | bb->length += size; | |
615 | ||
616 | return d->data; | |
617 | } | |
618 | ||
619 | /* Convert the resource directory RESDIR to binary. */ | |
620 | ||
621 | static void | |
2da42df6 | 622 | coff_to_bin (const struct res_directory *resdir, struct coff_write_info *cwi) |
252b5132 RH |
623 | { |
624 | struct extern_res_directory *erd; | |
625 | int ci, cn; | |
626 | const struct res_entry *e; | |
627 | struct extern_res_entry *ere; | |
628 | ||
629 | /* Write out the directory table. */ | |
630 | ||
631 | erd = ((struct extern_res_directory *) | |
632 | coff_alloc (&cwi->dirs, sizeof (*erd))); | |
633 | ||
634 | putcwi_32 (cwi, resdir->characteristics, erd->characteristics); | |
635 | putcwi_32 (cwi, resdir->time, erd->time); | |
636 | putcwi_16 (cwi, resdir->major, erd->major); | |
637 | putcwi_16 (cwi, resdir->minor, erd->minor); | |
638 | ||
639 | ci = 0; | |
640 | cn = 0; | |
641 | for (e = resdir->entries; e != NULL; e = e->next) | |
642 | { | |
643 | if (e->id.named) | |
644 | ++cn; | |
645 | else | |
646 | ++ci; | |
647 | } | |
648 | ||
649 | putcwi_16 (cwi, cn, erd->name_count); | |
650 | putcwi_16 (cwi, ci, erd->id_count); | |
651 | ||
652 | /* Write out the data entries. Note that we allocate space for all | |
653 | the entries before writing them out. That permits a recursive | |
654 | call to work correctly when writing out subdirectories. */ | |
655 | ||
656 | ere = ((struct extern_res_entry *) | |
657 | coff_alloc (&cwi->dirs, (ci + cn) * sizeof (*ere))); | |
658 | for (e = resdir->entries; e != NULL; e = e->next, ere++) | |
659 | { | |
660 | if (! e->id.named) | |
661 | putcwi_32 (cwi, e->id.u.id, ere->name); | |
662 | else | |
663 | { | |
664 | unsigned char *str; | |
665 | int i; | |
666 | ||
667 | /* For some reason existing files seem to have the high bit | |
668 | set on the address of the name, although that is not | |
669 | documented. */ | |
670 | putcwi_32 (cwi, | |
671 | 0x80000000 | (cwi->dirsize + cwi->dirstrs.length), | |
672 | ere->name); | |
673 | ||
674 | str = coff_alloc (&cwi->dirstrs, e->id.u.n.length * 2 + 2); | |
675 | putcwi_16 (cwi, e->id.u.n.length, str); | |
676 | for (i = 0; i < e->id.u.n.length; i++) | |
677 | putcwi_16 (cwi, e->id.u.n.name[i], str + i * 2 + 2); | |
678 | } | |
679 | ||
680 | if (e->subdir) | |
681 | { | |
682 | putcwi_32 (cwi, 0x80000000 | cwi->dirs.length, ere->rva); | |
683 | coff_to_bin (e->u.dir, cwi); | |
684 | } | |
685 | else | |
686 | { | |
687 | putcwi_32 (cwi, | |
688 | cwi->dirsize + cwi->dirstrsize + cwi->dataents.length, | |
689 | ere->rva); | |
690 | ||
691 | coff_res_to_bin (e->u.res, cwi); | |
692 | } | |
693 | } | |
694 | } | |
695 | ||
696 | /* Convert the resource RES to binary. */ | |
697 | ||
698 | static void | |
2da42df6 | 699 | coff_res_to_bin (const struct res_resource *res, struct coff_write_info *cwi) |
252b5132 RH |
700 | { |
701 | arelent *r; | |
702 | struct extern_res_data *erd; | |
703 | struct bindata *d; | |
704 | unsigned long length; | |
705 | ||
706 | /* For some reason, although every other address is a section | |
707 | offset, the address of the resource data itself is an RVA. That | |
708 | means that we need to generate a relocation for it. We allocate | |
709 | the relocs array using malloc so that we can use realloc. FIXME: | |
710 | This relocation handling is correct for the i386, but probably | |
711 | not for any other target. */ | |
712 | ||
713 | r = (arelent *) reswr_alloc (sizeof (arelent)); | |
714 | r->sym_ptr_ptr = cwi->sympp; | |
715 | r->address = cwi->dirsize + cwi->dirstrsize + cwi->dataents.length; | |
716 | r->addend = 0; | |
717 | r->howto = bfd_reloc_type_lookup (cwi->abfd, BFD_RELOC_RVA); | |
718 | if (r->howto == NULL) | |
719 | bfd_fatal (_("can't get BFD_RELOC_RVA relocation type")); | |
720 | ||
721 | cwi->relocs = xrealloc (cwi->relocs, | |
722 | (cwi->reloc_count + 2) * sizeof (arelent *)); | |
723 | cwi->relocs[cwi->reloc_count] = r; | |
724 | cwi->relocs[cwi->reloc_count + 1] = NULL; | |
725 | ++cwi->reloc_count; | |
726 | ||
727 | erd = (struct extern_res_data *) coff_alloc (&cwi->dataents, sizeof (*erd)); | |
728 | ||
729 | putcwi_32 (cwi, | |
730 | (cwi->dirsize | |
731 | + cwi->dirstrsize | |
732 | + cwi->dataentsize | |
733 | + cwi->resources.length), | |
734 | erd->rva); | |
735 | putcwi_32 (cwi, res->coff_info.codepage, erd->codepage); | |
736 | putcwi_32 (cwi, res->coff_info.reserved, erd->reserved); | |
737 | ||
738 | d = res_to_bin (res, cwi->big_endian); | |
739 | ||
740 | if (cwi->resources.d == NULL) | |
741 | cwi->resources.d = d; | |
742 | else | |
743 | cwi->resources.last->next = d; | |
744 | ||
745 | length = 0; | |
746 | for (; d->next != NULL; d = d->next) | |
747 | length += d->length; | |
748 | length += d->length; | |
749 | cwi->resources.last = d; | |
750 | cwi->resources.length += length; | |
751 | ||
752 | putcwi_32 (cwi, length, erd->size); | |
753 | ||
754 | /* Force the next resource to have 32 bit alignment. */ | |
755 | ||
756 | if ((length & 3) != 0) | |
757 | { | |
758 | int add; | |
759 | unsigned char *ex; | |
760 | ||
761 | add = 4 - (length & 3); | |
762 | ||
763 | ex = coff_alloc (&cwi->resources, add); | |
764 | memset (ex, 0, add); | |
765 | } | |
766 | } |