Commit | Line | Data |
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252b5132 | 1 | /* Routines to help build PEI-format DLLs (Win32 etc) |
a6483292 | 2 | Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by DJ Delorie <dj@cygnus.com> |
4 | ||
5 | This file is part of GLD, the Gnu Linker. | |
6 | ||
7 | GLD 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 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GLD 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 GLD; see the file COPYING. If not, write to the Free | |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
21 | ||
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
24 | #include "bfdlink.h" | |
25 | #include "libiberty.h" | |
26 | ||
27 | #include <time.h> | |
28 | #include <ctype.h> | |
29 | ||
30 | #include "ld.h" | |
31 | #include "ldexp.h" | |
32 | #include "ldlang.h" | |
33 | #include "ldwrite.h" | |
34 | #include "ldmisc.h" | |
35 | #include "ldgram.h" | |
36 | #include "ldmain.h" | |
37 | #include "ldemul.h" | |
38 | #include "coff/internal.h" | |
39 | #include "../bfd/libcoff.h" | |
40 | #include "deffile.h" | |
1069dd8d | 41 | #include "pe-dll.h" |
252b5132 RH |
42 | |
43 | /************************************************************************ | |
44 | ||
45 | This file turns a regular Windows PE image into a DLL. Because of | |
46 | the complexity of this operation, it has been broken down into a | |
47 | number of separate modules which are all called by the main function | |
48 | at the end of this file. This function is not re-entrant and is | |
49 | normally only called once, so static variables are used to reduce | |
50 | the number of parameters and return values required. | |
51 | ||
52 | See also: ld/emultempl/pe.em | |
53 | ||
54 | ************************************************************************/ | |
55 | ||
56 | /* for emultempl/pe.em */ | |
57 | ||
58 | def_file *pe_def_file = 0; | |
59 | int pe_dll_export_everything = 0; | |
60 | int pe_dll_do_default_excludes = 1; | |
61 | int pe_dll_kill_ats = 0; | |
62 | int pe_dll_stdcall_aliases = 0; | |
870df5dc NC |
63 | int pe_dll_warn_dup_exports = 0; |
64 | int pe_dll_compat_implib = 0; | |
252b5132 RH |
65 | |
66 | /************************************************************************ | |
67 | ||
68 | static variables and types | |
69 | ||
70 | ************************************************************************/ | |
71 | ||
72 | static bfd_vma image_base; | |
73 | ||
74 | static bfd *filler_bfd; | |
75 | static struct sec *edata_s, *reloc_s; | |
76 | static unsigned char *edata_d, *reloc_d; | |
1069dd8d | 77 | static size_t edata_sz, reloc_sz; |
252b5132 | 78 | |
c6c37250 DD |
79 | typedef struct { |
80 | char *target_name; | |
81 | char *object_target; | |
1069dd8d | 82 | unsigned int imagebase_reloc; |
c6c37250 DD |
83 | int pe_arch; |
84 | int bfd_arch; | |
85 | int underscored; | |
86 | } pe_details_type; | |
87 | ||
88 | #define PE_ARCH_i386 1 | |
344a211f NC |
89 | #define PE_ARCH_sh 2 |
90 | #define PE_ARCH_mips 3 | |
91 | #define PE_ARCH_arm 4 | |
c6c37250 DD |
92 | |
93 | static pe_details_type pe_detail_list[] = { | |
94 | { | |
95 | "pei-i386", | |
96 | "pe-i386", | |
97 | 7 /* R_IMAGEBASE */, | |
98 | PE_ARCH_i386, | |
99 | bfd_arch_i386, | |
100 | 1 | |
101 | }, | |
344a211f NC |
102 | { |
103 | "pei-shl", | |
104 | "pe-shl", | |
105 | 16 /* R_SH_IMAGEBASE */, | |
106 | PE_ARCH_sh, | |
107 | bfd_arch_sh, | |
108 | 1 | |
109 | }, | |
110 | { | |
111 | "pei-mips", | |
112 | "pe-mips", | |
113 | 34 /* MIPS_R_RVA */, | |
114 | PE_ARCH_mips, | |
115 | bfd_arch_mips, | |
116 | 0 | |
117 | }, | |
118 | { | |
119 | "pei-arm-little", | |
120 | "pe-arm-little", | |
121 | 11 /* ARM_RVA32 */, | |
122 | PE_ARCH_arm, | |
123 | bfd_arch_arm, | |
124 | 0 | |
125 | }, | |
1069dd8d | 126 | { NULL, NULL, 0, 0, 0, 0 } |
c6c37250 DD |
127 | }; |
128 | ||
129 | static pe_details_type *pe_details; | |
130 | ||
131 | #define U(str) (pe_details->underscored ? "_" str : str) | |
132 | ||
133 | void | |
134 | pe_dll_id_target (target) | |
1069dd8d | 135 | const char *target; |
c6c37250 DD |
136 | { |
137 | int i; | |
138 | for (i=0; pe_detail_list[i].target_name; i++) | |
139 | if (strcmp (pe_detail_list[i].target_name, target) == 0) | |
140 | { | |
141 | pe_details = pe_detail_list+i; | |
142 | return; | |
143 | } | |
144 | einfo (_("%XUnsupported PEI architecture: %s\n"), target); | |
145 | exit (1); | |
146 | } | |
147 | ||
252b5132 RH |
148 | /************************************************************************ |
149 | ||
150 | Helper functions for qsort. Relocs must be sorted so that we can write | |
151 | them out by pages. | |
152 | ||
153 | ************************************************************************/ | |
154 | ||
c6c37250 DD |
155 | typedef struct { |
156 | bfd_vma vma; | |
157 | char type; | |
158 | short extra; | |
159 | } reloc_data_type; | |
160 | ||
252b5132 RH |
161 | static int |
162 | reloc_sort (va, vb) | |
163 | const void *va, *vb; | |
164 | { | |
c6c37250 DD |
165 | bfd_vma a = ((reloc_data_type *) va)->vma; |
166 | bfd_vma b = ((reloc_data_type *) vb)->vma; | |
167 | return (a > b) ? 1 : ((a < b) ? -1 : 0); | |
252b5132 RH |
168 | } |
169 | ||
170 | static int | |
171 | pe_export_sort (va, vb) | |
172 | const void *va, *vb; | |
173 | { | |
174 | def_file_export *a = (def_file_export *) va; | |
175 | def_file_export *b = (def_file_export *) vb; | |
176 | return strcmp (a->name, b->name); | |
177 | } | |
178 | ||
179 | /************************************************************************ | |
180 | ||
181 | Read and process the .DEF file | |
182 | ||
183 | ************************************************************************/ | |
184 | ||
185 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
186 | exported_symbol_sections[i] to tag whether or not the symbol was | |
187 | defined, since we can't export symbols we don't have. */ | |
188 | ||
189 | static bfd_vma *exported_symbol_offsets; | |
190 | static struct sec **exported_symbol_sections; | |
191 | ||
192 | static int export_table_size; | |
193 | static int count_exported; | |
194 | static int count_exported_byname; | |
195 | static int count_with_ordinals; | |
196 | static const char *dll_name; | |
197 | static int min_ordinal, max_ordinal; | |
198 | static int *exported_symbols; | |
199 | ||
200 | typedef struct exclude_list_struct | |
201 | { | |
202 | char *string; | |
203 | struct exclude_list_struct *next; | |
204 | } | |
205 | exclude_list_struct; | |
206 | static struct exclude_list_struct *excludes = 0; | |
207 | ||
208 | void | |
209 | pe_dll_add_excludes (new_excludes) | |
210 | const char *new_excludes; | |
211 | { | |
212 | char *local_copy; | |
213 | char *exclude_string; | |
214 | ||
215 | local_copy = xstrdup (new_excludes); | |
216 | ||
217 | exclude_string = strtok (local_copy, ",:"); | |
218 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
219 | { | |
220 | struct exclude_list_struct *new_exclude; | |
221 | ||
222 | new_exclude = ((struct exclude_list_struct *) | |
223 | xmalloc (sizeof (struct exclude_list_struct))); | |
224 | new_exclude->string = (char *) xmalloc (strlen (exclude_string) + 1); | |
225 | strcpy (new_exclude->string, exclude_string); | |
226 | new_exclude->next = excludes; | |
227 | excludes = new_exclude; | |
228 | } | |
229 | ||
230 | free (local_copy); | |
231 | } | |
232 | ||
233 | static int | |
234 | auto_export (d, n) | |
235 | def_file *d; | |
236 | const char *n; | |
237 | { | |
238 | int i; | |
239 | struct exclude_list_struct *ex; | |
240 | for (i = 0; i < d->num_exports; i++) | |
241 | if (strcmp (d->exports[i].name, n) == 0) | |
242 | return 0; | |
243 | if (pe_dll_do_default_excludes) | |
244 | { | |
245 | if (strcmp (n, "DllMain@12") == 0) | |
246 | return 0; | |
247 | if (strcmp (n, "DllEntryPoint@0") == 0) | |
248 | return 0; | |
249 | if (strcmp (n, "impure_ptr") == 0) | |
250 | return 0; | |
251 | } | |
252 | for (ex = excludes; ex; ex = ex->next) | |
253 | if (strcmp (n, ex->string) == 0) | |
254 | return 0; | |
255 | return 1; | |
256 | } | |
257 | ||
258 | static void | |
259 | process_def_file (abfd, info) | |
1069dd8d | 260 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
261 | struct bfd_link_info *info; |
262 | { | |
263 | int i, j; | |
264 | struct bfd_link_hash_entry *blhe; | |
265 | bfd *b; | |
266 | struct sec *s; | |
267 | def_file_export *e=0; | |
268 | ||
269 | if (!pe_def_file) | |
270 | pe_def_file = def_file_empty (); | |
271 | ||
272 | /* First, run around to all the objects looking for the .drectve | |
273 | sections, and push those into the def file too */ | |
274 | ||
275 | for (b = info->input_bfds; b; b = b->link_next) | |
276 | { | |
277 | s = bfd_get_section_by_name (b, ".drectve"); | |
278 | if (s) | |
279 | { | |
280 | int size = bfd_get_section_size_before_reloc (s); | |
281 | char *buf = xmalloc (size); | |
282 | bfd_get_section_contents (b, s, buf, 0, size); | |
283 | def_file_add_directive (pe_def_file, buf, size); | |
284 | free (buf); | |
285 | } | |
286 | } | |
287 | ||
288 | /* Now, maybe export everything else the default way */ | |
289 | ||
290 | if (pe_dll_export_everything || pe_def_file->num_exports == 0) | |
291 | { | |
292 | for (b = info->input_bfds; b; b = b->link_next) | |
293 | { | |
294 | asymbol **symbols; | |
295 | int nsyms, symsize; | |
296 | ||
297 | symsize = bfd_get_symtab_upper_bound (b); | |
298 | symbols = (asymbol **) xmalloc (symsize); | |
299 | nsyms = bfd_canonicalize_symtab (b, symbols); | |
300 | ||
301 | for (j = 0; j < nsyms; j++) | |
302 | { | |
303 | if ((symbols[j]->flags & (BSF_FUNCTION | BSF_GLOBAL)) | |
304 | == (BSF_FUNCTION | BSF_GLOBAL)) | |
305 | { | |
306 | const char *sn = symbols[j]->name; | |
307 | if (*sn == '_') | |
308 | sn++; | |
309 | if (auto_export (pe_def_file, sn)) | |
310 | def_file_add_export (pe_def_file, sn, 0, -1); | |
311 | } | |
312 | } | |
313 | } | |
314 | } | |
315 | ||
316 | #undef NE | |
317 | #define NE pe_def_file->num_exports | |
318 | ||
319 | /* Canonicalize the export list */ | |
320 | ||
321 | if (pe_dll_kill_ats) | |
322 | { | |
323 | for (i = 0; i < NE; i++) | |
324 | { | |
325 | if (strchr (pe_def_file->exports[i].name, '@')) | |
326 | { | |
327 | /* This will preserve internal_name, which may have been pointing | |
328 | to the same memory as name, or might not have */ | |
329 | char *tmp = xstrdup (pe_def_file->exports[i].name); | |
330 | *(strchr (tmp, '@')) = 0; | |
331 | pe_def_file->exports[i].name = tmp; | |
332 | } | |
333 | } | |
334 | } | |
335 | ||
336 | if (pe_dll_stdcall_aliases) | |
337 | { | |
338 | for (i = 0; i < NE; i++) | |
339 | { | |
340 | if (strchr (pe_def_file->exports[i].name, '@')) | |
341 | { | |
342 | char *tmp = xstrdup (pe_def_file->exports[i].name); | |
343 | *(strchr (tmp, '@')) = 0; | |
344 | if (auto_export (pe_def_file, tmp)) | |
345 | def_file_add_export (pe_def_file, tmp, | |
346 | pe_def_file->exports[i].internal_name, -1); | |
347 | else | |
348 | free (tmp); | |
349 | } | |
350 | } | |
351 | } | |
352 | ||
353 | e = pe_def_file->exports; /* convenience, but watch out for it changing */ | |
354 | ||
355 | exported_symbol_offsets = (bfd_vma *) xmalloc (NE * sizeof (bfd_vma)); | |
356 | exported_symbol_sections = (struct sec **) xmalloc (NE * sizeof (struct sec *)); | |
357 | ||
358 | memset (exported_symbol_sections, 0, NE * sizeof (struct sec *)); | |
359 | max_ordinal = 0; | |
360 | min_ordinal = 65536; | |
361 | count_exported = 0; | |
362 | count_exported_byname = 0; | |
363 | count_with_ordinals = 0; | |
364 | ||
365 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), pe_export_sort); | |
366 | for (i = 0, j = 0; i < NE; i++) | |
367 | { | |
368 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
369 | { | |
870df5dc | 370 | /* This is a duplicate. */ |
252b5132 RH |
371 | if (e[j - 1].ordinal != -1 |
372 | && e[i].ordinal != -1 | |
373 | && e[j - 1].ordinal != e[i].ordinal) | |
374 | { | |
870df5dc NC |
375 | if (pe_dll_warn_dup_exports) |
376 | /* xgettext:c-format */ | |
377 | einfo (_("%XError, duplicate EXPORT with oridinals: %s (%d vs %d)\n"), | |
378 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); | |
252b5132 RH |
379 | } |
380 | else | |
381 | { | |
870df5dc NC |
382 | if (pe_dll_warn_dup_exports) |
383 | /* xgettext:c-format */ | |
384 | einfo (_("Warning, duplicate EXPORT: %s\n"), | |
385 | e[j - 1].name); | |
252b5132 RH |
386 | } |
387 | if (e[i].ordinal) | |
388 | e[j - 1].ordinal = e[i].ordinal; | |
389 | e[j - 1].flag_private |= e[i].flag_private; | |
390 | e[j - 1].flag_constant |= e[i].flag_constant; | |
391 | e[j - 1].flag_noname |= e[i].flag_noname; | |
392 | e[j - 1].flag_data |= e[i].flag_data; | |
393 | } | |
394 | else | |
395 | { | |
396 | if (i != j) | |
397 | e[j] = e[i]; | |
398 | j++; | |
399 | } | |
400 | } | |
401 | pe_def_file->num_exports = j; /* == NE */ | |
402 | ||
403 | for (i = 0; i < NE; i++) | |
404 | { | |
405 | char *name = (char *) xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); | |
c6c37250 DD |
406 | if (pe_details->underscored) |
407 | { | |
408 | *name = '_'; | |
409 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
410 | } | |
411 | else | |
412 | strcpy (name, pe_def_file->exports[i].internal_name); | |
252b5132 RH |
413 | |
414 | blhe = bfd_link_hash_lookup (info->hash, | |
415 | name, | |
416 | false, false, true); | |
417 | ||
8a5b676c DD |
418 | if (blhe |
419 | && (blhe->type == bfd_link_hash_defined | |
420 | || (blhe->type == bfd_link_hash_common))) | |
252b5132 RH |
421 | { |
422 | count_exported++; | |
423 | if (!pe_def_file->exports[i].flag_noname) | |
424 | count_exported_byname++; | |
8a5b676c DD |
425 | |
426 | /* Only fill in the sections. The actual offsets are computed | |
427 | in fill_exported_offsets() after common symbols are laid | |
428 | out. */ | |
429 | if (blhe->type == bfd_link_hash_defined) | |
430 | exported_symbol_sections[i] = blhe->u.def.section; | |
431 | else | |
432 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
344a211f | 433 | |
252b5132 RH |
434 | if (pe_def_file->exports[i].ordinal != -1) |
435 | { | |
436 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
437 | max_ordinal = pe_def_file->exports[i].ordinal; | |
438 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
439 | min_ordinal = pe_def_file->exports[i].ordinal; | |
440 | count_with_ordinals++; | |
441 | } | |
442 | } | |
443 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
444 | { | |
445 | /* xgettext:c-format */ | |
446 | einfo (_("%XCannot export %s: symbol not defined\n"), | |
447 | pe_def_file->exports[i].internal_name); | |
448 | } | |
449 | else if (blhe) | |
450 | { | |
451 | /* xgettext:c-format */ | |
452 | einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"), | |
453 | pe_def_file->exports[i].internal_name, | |
454 | blhe->type, bfd_link_hash_defined); | |
455 | } | |
456 | else | |
457 | { | |
458 | /* xgettext:c-format */ | |
459 | einfo (_("%XCannot export %s: symbol not found\n"), | |
460 | pe_def_file->exports[i].internal_name); | |
461 | } | |
462 | free (name); | |
463 | } | |
464 | } | |
465 | ||
466 | /************************************************************************ | |
467 | ||
468 | Build the bfd that will contain .edata and .reloc sections | |
469 | ||
470 | ************************************************************************/ | |
471 | ||
472 | static void | |
c6c37250 DD |
473 | build_filler_bfd (include_edata) |
474 | int include_edata; | |
252b5132 RH |
475 | { |
476 | lang_input_statement_type *filler_file; | |
477 | filler_file = lang_add_input_file ("dll stuff", | |
478 | lang_input_file_is_fake_enum, | |
479 | NULL); | |
480 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", output_bfd); | |
481 | if (filler_bfd == NULL | |
482 | || !bfd_set_arch_mach (filler_bfd, | |
483 | bfd_get_arch (output_bfd), | |
484 | bfd_get_mach (output_bfd))) | |
485 | { | |
486 | einfo ("%X%P: can not create BFD %E\n"); | |
487 | return; | |
488 | } | |
489 | ||
c6c37250 | 490 | if (include_edata) |
252b5132 | 491 | { |
c6c37250 DD |
492 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
493 | if (edata_s == NULL | |
494 | || !bfd_set_section_flags (filler_bfd, edata_s, | |
495 | (SEC_HAS_CONTENTS | |
496 | | SEC_ALLOC | |
497 | | SEC_LOAD | |
498 | | SEC_KEEP | |
499 | | SEC_IN_MEMORY))) | |
500 | { | |
501 | einfo ("%X%P: can not create .edata section: %E\n"); | |
502 | return; | |
503 | } | |
504 | bfd_set_section_size (filler_bfd, edata_s, edata_sz); | |
252b5132 | 505 | } |
252b5132 RH |
506 | |
507 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
508 | if (reloc_s == NULL | |
509 | || !bfd_set_section_flags (filler_bfd, reloc_s, | |
510 | (SEC_HAS_CONTENTS | |
511 | | SEC_ALLOC | |
512 | | SEC_LOAD | |
513 | | SEC_KEEP | |
514 | | SEC_IN_MEMORY))) | |
515 | { | |
516 | einfo ("%X%P: can not create .reloc section: %E\n"); | |
517 | return; | |
518 | } | |
519 | bfd_set_section_size (filler_bfd, reloc_s, 0); | |
520 | ||
521 | ldlang_add_file (filler_file); | |
522 | } | |
523 | ||
524 | /************************************************************************ | |
525 | ||
526 | Gather all the exported symbols and build the .edata section | |
527 | ||
528 | ************************************************************************/ | |
529 | ||
530 | static void | |
531 | generate_edata (abfd, info) | |
532 | bfd *abfd; | |
1069dd8d | 533 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
534 | { |
535 | int i, next_ordinal; | |
536 | int name_table_size = 0; | |
537 | const char *dlnp; | |
538 | ||
539 | /* First, we need to know how many exported symbols there are, | |
540 | and what the range of ordinals is. */ | |
541 | ||
542 | if (pe_def_file->name) | |
543 | { | |
544 | dll_name = pe_def_file->name; | |
545 | } | |
546 | else | |
547 | { | |
548 | dll_name = abfd->filename; | |
549 | for (dlnp = dll_name; *dlnp; dlnp++) | |
550 | { | |
551 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') | |
552 | dll_name = dlnp + 1; | |
553 | } | |
554 | } | |
555 | ||
556 | if (count_with_ordinals && max_ordinal > count_exported) | |
557 | { | |
558 | if (min_ordinal > max_ordinal - count_exported + 1) | |
559 | min_ordinal = max_ordinal - count_exported + 1; | |
560 | } | |
561 | else | |
562 | { | |
563 | min_ordinal = 1; | |
564 | max_ordinal = count_exported; | |
565 | } | |
566 | export_table_size = max_ordinal - min_ordinal + 1; | |
567 | ||
568 | exported_symbols = (int *) xmalloc (export_table_size * sizeof (int)); | |
569 | for (i = 0; i < export_table_size; i++) | |
570 | exported_symbols[i] = -1; | |
571 | ||
572 | /* Now we need to assign ordinals to those that don't have them */ | |
573 | for (i = 0; i < NE; i++) | |
574 | { | |
575 | if (exported_symbol_sections[i]) | |
576 | { | |
577 | if (pe_def_file->exports[i].ordinal != -1) | |
578 | { | |
579 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
580 | int pi = exported_symbols[ei]; | |
581 | if (pi != -1) | |
582 | { | |
583 | /* xgettext:c-format */ | |
584 | einfo (_("%XError, oridinal used twice: %d (%s vs %s)\n"), | |
585 | pe_def_file->exports[i].ordinal, | |
586 | pe_def_file->exports[i].name, | |
587 | pe_def_file->exports[pi].name); | |
588 | } | |
589 | exported_symbols[ei] = i; | |
590 | } | |
591 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
592 | } | |
593 | } | |
594 | ||
595 | next_ordinal = min_ordinal; | |
596 | for (i = 0; i < NE; i++) | |
597 | if (exported_symbol_sections[i]) | |
598 | if (pe_def_file->exports[i].ordinal == -1) | |
599 | { | |
600 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
601 | next_ordinal++; | |
602 | exported_symbols[next_ordinal - min_ordinal] = i; | |
603 | pe_def_file->exports[i].ordinal = next_ordinal; | |
604 | } | |
605 | ||
606 | /* OK, now we can allocate some memory */ | |
607 | ||
608 | edata_sz = (40 /* directory */ | |
609 | + 4 * export_table_size /* addresses */ | |
610 | + 4 * count_exported_byname /* name ptrs */ | |
611 | + 2 * count_exported_byname /* ordinals */ | |
612 | + name_table_size + strlen (dll_name) + 1); | |
613 | } | |
614 | ||
8a5b676c DD |
615 | /* Fill the exported symbol offsets. The preliminary work has already |
616 | been done in process_def_file(). */ | |
617 | ||
618 | static void | |
619 | fill_exported_offsets (abfd, info) | |
620 | bfd *abfd; | |
621 | struct bfd_link_info *info; | |
622 | { | |
623 | int i, j; | |
624 | struct bfd_link_hash_entry *blhe; | |
625 | bfd *b; | |
626 | struct sec *s; | |
627 | def_file_export *e=0; | |
628 | ||
629 | for (i = 0; i < pe_def_file->num_exports; i++) | |
630 | { | |
631 | char *name = (char *) xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); | |
632 | if (pe_details->underscored) | |
633 | { | |
634 | *name = '_'; | |
635 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
636 | } | |
637 | else | |
638 | strcpy (name, pe_def_file->exports[i].internal_name); | |
639 | ||
640 | blhe = bfd_link_hash_lookup (info->hash, | |
641 | name, | |
642 | false, false, true); | |
643 | ||
644 | if (blhe && (blhe->type == bfd_link_hash_defined)) | |
645 | { | |
646 | exported_symbol_offsets[i] = blhe->u.def.value; | |
647 | } | |
648 | free (name); | |
649 | } | |
650 | } | |
651 | ||
252b5132 RH |
652 | static void |
653 | fill_edata (abfd, info) | |
654 | bfd *abfd; | |
1069dd8d | 655 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
656 | { |
657 | int i, hint; | |
658 | unsigned char *edirectory; | |
659 | unsigned long *eaddresses; | |
660 | unsigned long *enameptrs; | |
661 | unsigned short *eordinals; | |
662 | unsigned char *enamestr; | |
663 | time_t now; | |
664 | ||
665 | time (&now); | |
666 | ||
667 | edata_d = (unsigned char *) xmalloc (edata_sz); | |
668 | ||
669 | /* Note use of array pointer math here */ | |
670 | edirectory = edata_d; | |
671 | eaddresses = (unsigned long *) (edata_d + 40); | |
672 | enameptrs = eaddresses + export_table_size; | |
673 | eordinals = (unsigned short *) (enameptrs + count_exported_byname); | |
674 | enamestr = (char *) (eordinals + count_exported_byname); | |
675 | ||
676 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) + edata_s->output_section->vma - image_base) | |
677 | ||
678 | memset (edata_d, 0, 40); | |
679 | bfd_put_32 (abfd, now, edata_d + 4); | |
680 | if (pe_def_file->version_major != -1) | |
681 | { | |
682 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
683 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
684 | } | |
685 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); | |
686 | strcpy (enamestr, dll_name); | |
687 | enamestr += strlen (enamestr) + 1; | |
688 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
689 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
690 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
691 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
692 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
693 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
694 | ||
8a5b676c DD |
695 | fill_exported_offsets (abfd, info); |
696 | ||
252b5132 RH |
697 | /* Ok, now for the filling in part */ |
698 | hint = 0; | |
699 | for (i = 0; i < export_table_size; i++) | |
700 | { | |
701 | int s = exported_symbols[i]; | |
702 | if (s != -1) | |
703 | { | |
704 | struct sec *ssec = exported_symbol_sections[s]; | |
705 | unsigned long srva = (exported_symbol_offsets[s] | |
706 | + ssec->output_section->vma | |
707 | + ssec->output_offset); | |
708 | ||
709 | bfd_put_32 (abfd, srva - image_base, (void *) (eaddresses + i)); | |
710 | if (!pe_def_file->exports[s].flag_noname) | |
711 | { | |
712 | char *ename = pe_def_file->exports[s].name; | |
713 | bfd_put_32 (abfd, ERVA (enamestr), (void *) enameptrs); | |
714 | strcpy (enamestr, ename); | |
715 | enamestr += strlen (enamestr) + 1; | |
716 | bfd_put_16 (abfd, i, (void *) eordinals); | |
717 | enameptrs++; | |
718 | pe_def_file->exports[s].hint = hint++; | |
719 | } | |
720 | eordinals++; | |
721 | } | |
722 | } | |
723 | } | |
724 | ||
725 | /************************************************************************ | |
726 | ||
727 | Gather all the relocations and build the .reloc section | |
728 | ||
729 | ************************************************************************/ | |
730 | ||
731 | static void | |
732 | generate_reloc (abfd, info) | |
733 | bfd *abfd; | |
734 | struct bfd_link_info *info; | |
735 | { | |
736 | ||
737 | /* for .reloc stuff */ | |
c6c37250 | 738 | reloc_data_type *reloc_data; |
252b5132 RH |
739 | int total_relocs = 0; |
740 | int i; | |
741 | unsigned long sec_page = (unsigned long) (-1); | |
742 | unsigned long page_ptr, page_count; | |
743 | int bi; | |
744 | bfd *b; | |
745 | struct sec *s; | |
746 | ||
747 | total_relocs = 0; | |
748 | for (b = info->input_bfds; b; b = b->link_next) | |
749 | for (s = b->sections; s; s = s->next) | |
750 | total_relocs += s->reloc_count; | |
751 | ||
c6c37250 | 752 | reloc_data = (reloc_data_type *) xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
753 | |
754 | total_relocs = 0; | |
755 | bi = 0; | |
756 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next) | |
757 | { | |
758 | arelent **relocs; | |
759 | int relsize, nrelocs, i; | |
760 | ||
761 | for (s = b->sections; s; s = s->next) | |
762 | { | |
763 | unsigned long sec_vma = s->output_section->vma + s->output_offset; | |
764 | asymbol **symbols; | |
765 | int nsyms, symsize; | |
766 | ||
767 | /* if it's not loaded, we don't need to relocate it this way */ | |
768 | if (!(s->output_section->flags & SEC_LOAD)) | |
769 | continue; | |
770 | ||
771 | /* I don't know why there would be a reloc for these, but I've | |
772 | seen it happen - DJ */ | |
773 | if (s->output_section == &bfd_abs_section) | |
774 | continue; | |
775 | ||
776 | if (s->output_section->vma == 0) | |
777 | { | |
778 | /* Huh? Shouldn't happen, but punt if it does */ | |
779 | einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n", | |
780 | s->output_section->name, s->output_section->index, | |
781 | s->output_section->flags); | |
782 | continue; | |
783 | } | |
784 | ||
785 | symsize = bfd_get_symtab_upper_bound (b); | |
786 | symbols = (asymbol **) xmalloc (symsize); | |
787 | nsyms = bfd_canonicalize_symtab (b, symbols); | |
788 | ||
789 | relsize = bfd_get_reloc_upper_bound (b, s); | |
790 | relocs = (arelent **) xmalloc ((size_t) relsize); | |
791 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); | |
792 | ||
793 | for (i = 0; i < nrelocs; i++) | |
794 | { | |
795 | if (!relocs[i]->howto->pc_relative | |
c6c37250 | 796 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 797 | { |
c6c37250 DD |
798 | bfd_vma sym_vma; |
799 | struct symbol_cache_entry *sym = *relocs[i]->sym_ptr_ptr; | |
800 | sym_vma = (relocs[i]->addend | |
801 | + sym->value | |
802 | + sym->section->vma | |
803 | + sym->section->output_offset | |
804 | + sym->section->output_section->vma); | |
805 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; | |
344a211f NC |
806 | |
807 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) | |
808 | ||
809 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, | |
810 | relocs[i]->howto->rightshift) | |
252b5132 | 811 | { |
344a211f | 812 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
813 | reloc_data[total_relocs].type = 3; |
814 | total_relocs++; | |
252b5132 | 815 | break; |
344a211f NC |
816 | case BITS_AND_SHIFT (16, 0): |
817 | reloc_data[total_relocs].type = 2; | |
818 | total_relocs++; | |
819 | break; | |
820 | case BITS_AND_SHIFT (16, 16): | |
821 | reloc_data[total_relocs].type = 4; | |
822 | /* FIXME: we can't know the symbol's right value yet, | |
823 | but we probably can safely assume that CE will relocate | |
824 | us in 64k blocks, so leaving it zero is safe. */ | |
825 | reloc_data[total_relocs].extra = 0; | |
826 | total_relocs++; | |
827 | break; | |
828 | case BITS_AND_SHIFT (26, 2): | |
829 | reloc_data[total_relocs].type = 5; | |
830 | total_relocs++; | |
831 | break; | |
252b5132 RH |
832 | default: |
833 | /* xgettext:c-format */ | |
834 | einfo (_("%XError: %d-bit reloc in dll\n"), | |
835 | relocs[i]->howto->bitsize); | |
836 | break; | |
837 | } | |
838 | } | |
839 | } | |
840 | free (relocs); | |
841 | /* Warning: the allocated symbols are remembered in BFD and reused | |
842 | later, so don't free them! */ | |
843 | /* free (symbols); */ | |
844 | } | |
845 | } | |
846 | ||
847 | /* At this point, we have total_relocs relocation addresses in | |
848 | reloc_addresses, which are all suitable for the .reloc section. | |
849 | We must now create the new sections. */ | |
850 | ||
c6c37250 | 851 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
852 | |
853 | for (i = 0; i < total_relocs; i++) | |
854 | { | |
c6c37250 | 855 | unsigned long this_page = (reloc_data[i].vma >> 12); |
344a211f | 856 | |
252b5132 RH |
857 | if (this_page != sec_page) |
858 | { | |
859 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align */ | |
860 | reloc_sz += 8; | |
861 | sec_page = this_page; | |
862 | } | |
344a211f | 863 | |
252b5132 | 864 | reloc_sz += 2; |
344a211f NC |
865 | |
866 | if (reloc_data[i].type == 4) | |
867 | reloc_sz += 2; | |
252b5132 RH |
868 | } |
869 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align */ | |
870 | ||
871 | reloc_d = (unsigned char *) xmalloc (reloc_sz); | |
872 | ||
873 | sec_page = (unsigned long) (-1); | |
874 | reloc_sz = 0; | |
875 | page_ptr = (unsigned long) (-1); | |
876 | page_count = 0; | |
877 | for (i = 0; i < total_relocs; i++) | |
878 | { | |
c6c37250 | 879 | unsigned long rva = reloc_data[i].vma - image_base; |
252b5132 RH |
880 | unsigned long this_page = (rva & ~0xfff); |
881 | if (this_page != sec_page) | |
882 | { | |
883 | while (reloc_sz & 3) | |
884 | reloc_d[reloc_sz++] = 0; | |
885 | if (page_ptr != (unsigned long) (-1)) | |
886 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); | |
887 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); | |
888 | page_ptr = reloc_sz; | |
889 | reloc_sz += 8; | |
890 | sec_page = this_page; | |
891 | page_count = 0; | |
892 | } | |
c6c37250 DD |
893 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type<<12), |
894 | reloc_d + reloc_sz); | |
252b5132 | 895 | reloc_sz += 2; |
c6c37250 DD |
896 | if (reloc_data[i].type == 4) |
897 | { | |
898 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
899 | reloc_sz += 2; | |
900 | } | |
252b5132 RH |
901 | page_count++; |
902 | } | |
903 | while (reloc_sz & 3) | |
904 | reloc_d[reloc_sz++] = 0; | |
905 | if (page_ptr != (unsigned long) (-1)) | |
906 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); | |
907 | while (reloc_sz < reloc_s->_raw_size) | |
908 | reloc_d[reloc_sz++] = 0; | |
909 | } | |
910 | ||
911 | /************************************************************************ | |
912 | ||
913 | Given the exiting def_file structure, print out a .DEF file that | |
914 | corresponds to it. | |
915 | ||
916 | ************************************************************************/ | |
917 | ||
918 | static void | |
919 | quoteput (s, f, needs_quotes) | |
920 | char *s; | |
921 | FILE * f; | |
922 | int needs_quotes; | |
923 | { | |
924 | char *cp; | |
925 | for (cp = s; *cp; cp++) | |
926 | if (*cp == '\'' | |
927 | || *cp == '"' | |
928 | || *cp == '\\' | |
929 | || isspace ((unsigned char) *cp) | |
930 | || *cp == ',' | |
931 | || *cp == ';') | |
932 | needs_quotes = 1; | |
933 | if (needs_quotes) | |
934 | { | |
935 | putc ('"', f); | |
936 | while (*s) | |
937 | { | |
938 | if (*s == '"' || *s == '\\') | |
939 | putc ('\\', f); | |
940 | putc (*s, f); | |
941 | s++; | |
942 | } | |
943 | putc ('"', f); | |
944 | } | |
945 | else | |
946 | fputs (s, f); | |
947 | } | |
948 | ||
949 | void | |
950 | pe_dll_generate_def_file (pe_out_def_filename) | |
1069dd8d | 951 | const char *pe_out_def_filename; |
252b5132 RH |
952 | { |
953 | int i; | |
954 | FILE *out = fopen (pe_out_def_filename, "w"); | |
955 | if (out == NULL) | |
956 | { | |
957 | /* xgettext:c-format */ | |
958 | einfo (_("%s: Can't open output def file %s\n"), | |
959 | program_name, pe_out_def_filename); | |
960 | } | |
961 | ||
962 | if (pe_def_file) | |
963 | { | |
964 | if (pe_def_file->name) | |
965 | { | |
966 | if (pe_def_file->is_dll) | |
967 | fprintf (out, "LIBRARY "); | |
968 | else | |
969 | fprintf (out, "NAME "); | |
970 | quoteput (pe_def_file->name, out, 1); | |
971 | if (pe_data (output_bfd)->pe_opthdr.ImageBase) | |
972 | fprintf (out, " BASE=0x%lx", | |
973 | (unsigned long) pe_data (output_bfd)->pe_opthdr.ImageBase); | |
974 | fprintf (out, "\n"); | |
975 | } | |
976 | ||
977 | if (pe_def_file->description) | |
978 | { | |
979 | fprintf (out, "DESCRIPTION "); | |
980 | quoteput (pe_def_file->description, out, 1); | |
981 | fprintf (out, "\n"); | |
982 | } | |
983 | ||
984 | if (pe_def_file->version_minor != -1) | |
985 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
986 | pe_def_file->version_minor); | |
987 | else if (pe_def_file->version_major != -1) | |
988 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
989 | ||
990 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
991 | fprintf (out, "\n"); | |
992 | ||
993 | if (pe_def_file->stack_commit != -1) | |
994 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
995 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
996 | else if (pe_def_file->stack_reserve != -1) | |
997 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
998 | if (pe_def_file->heap_commit != -1) | |
999 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1000 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1001 | else if (pe_def_file->heap_reserve != -1) | |
1002 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1003 | ||
1004 | if (pe_def_file->num_section_defs > 0) | |
1005 | { | |
1006 | fprintf (out, "\nSECTIONS\n\n"); | |
1007 | for (i = 0; i < pe_def_file->num_section_defs; i++) | |
1008 | { | |
1009 | fprintf (out, " "); | |
1010 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
1011 | if (pe_def_file->section_defs[i].class) | |
1012 | { | |
1013 | fprintf (out, " CLASS "); | |
1014 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1015 | } | |
1016 | if (pe_def_file->section_defs[i].flag_read) | |
1017 | fprintf (out, " READ"); | |
1018 | if (pe_def_file->section_defs[i].flag_write) | |
1019 | fprintf (out, " WRITE"); | |
1020 | if (pe_def_file->section_defs[i].flag_execute) | |
1021 | fprintf (out, " EXECUTE"); | |
1022 | if (pe_def_file->section_defs[i].flag_shared) | |
1023 | fprintf (out, " SHARED"); | |
1024 | fprintf (out, "\n"); | |
1025 | } | |
1026 | } | |
1027 | ||
1028 | if (pe_def_file->num_exports > 0) | |
1029 | { | |
1030 | fprintf (out, "\nEXPORTS\n\n"); | |
1031 | for (i = 0; i < pe_def_file->num_exports; i++) | |
1032 | { | |
1033 | def_file_export *e = pe_def_file->exports + i; | |
1034 | fprintf (out, " "); | |
1035 | quoteput (e->name, out, 0); | |
1036 | if (e->internal_name && strcmp (e->internal_name, e->name)) | |
1037 | { | |
1038 | fprintf (out, " = "); | |
1039 | quoteput (e->internal_name, out, 0); | |
1040 | } | |
1041 | if (e->ordinal != -1) | |
1042 | fprintf (out, " @%d", e->ordinal); | |
1043 | if (e->flag_private) | |
1044 | fprintf (out, " PRIVATE"); | |
1045 | if (e->flag_constant) | |
1046 | fprintf (out, " CONSTANT"); | |
1047 | if (e->flag_noname) | |
1048 | fprintf (out, " NONAME"); | |
1049 | if (e->flag_data) | |
1050 | fprintf (out, " DATA"); | |
1051 | ||
1052 | fprintf (out, "\n"); | |
1053 | } | |
1054 | } | |
1055 | ||
1056 | if (pe_def_file->num_imports > 0) | |
1057 | { | |
1058 | fprintf (out, "\nIMPORTS\n\n"); | |
1059 | for (i = 0; i < pe_def_file->num_imports; i++) | |
1060 | { | |
1061 | def_file_import *im = pe_def_file->imports + i; | |
1062 | fprintf (out, " "); | |
1063 | if (im->internal_name | |
1064 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1065 | { | |
1066 | quoteput (im->internal_name, out, 0); | |
1067 | fprintf (out, " = "); | |
1068 | } | |
1069 | quoteput (im->module->name, out, 0); | |
1070 | fprintf (out, "."); | |
1071 | if (im->name) | |
1072 | quoteput (im->name, out, 0); | |
1073 | else | |
1074 | fprintf (out, "%d", im->ordinal); | |
1075 | fprintf (out, "\n"); | |
1076 | } | |
1077 | } | |
1078 | } | |
1079 | else | |
1080 | fprintf (out, _("; no contents available\n")); | |
1081 | ||
1082 | if (fclose (out) == EOF) | |
1083 | { | |
1084 | /* xgettext:c-format */ | |
1085 | einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename); | |
1086 | } | |
1087 | } | |
1088 | ||
1089 | /************************************************************************ | |
1090 | ||
1091 | Generate the import library | |
1092 | ||
1093 | ************************************************************************/ | |
1094 | ||
1095 | static asymbol **symtab; | |
1096 | static int symptr; | |
1097 | static int tmp_seq; | |
1098 | static const char *dll_filename; | |
1099 | static char *dll_symname; | |
1100 | ||
1101 | #define UNDSEC (asection *) &bfd_und_section | |
1102 | ||
1103 | static asection * | |
1104 | quick_section(abfd, name, flags, align) | |
1105 | bfd *abfd; | |
1106 | const char *name; | |
1107 | int flags; | |
1108 | int align; | |
1109 | { | |
1110 | asection *sec; | |
1111 | asymbol *sym; | |
1112 | ||
1113 | sec = bfd_make_section_old_way (abfd, name); | |
1114 | bfd_set_section_flags (abfd, sec, flags | |
1115 | | SEC_ALLOC | |
1116 | | SEC_LOAD | |
1117 | | SEC_KEEP | |
1118 | ); | |
1119 | bfd_set_section_alignment (abfd, sec, align); | |
1120 | /* remember to undo this before trying to link internally! */ | |
1121 | sec->output_section = sec; | |
1122 | ||
1123 | sym = bfd_make_empty_symbol (abfd); | |
1124 | symtab[symptr++] = sym; | |
1125 | sym->name = sec->name; | |
1126 | sym->section = sec; | |
1127 | sym->flags = BSF_LOCAL; | |
1128 | sym->value = 0; | |
1129 | ||
1130 | return sec; | |
1131 | } | |
1132 | ||
1133 | static void | |
1134 | quick_symbol (abfd, n1, n2, n3, sec, flags, addr) | |
1135 | bfd *abfd; | |
1136 | char *n1; | |
1137 | char *n2; | |
1138 | char *n3; | |
1139 | asection *sec; | |
1140 | int flags; | |
1141 | int addr; | |
1142 | { | |
1143 | asymbol *sym; | |
1144 | char *name = (char *) xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); | |
1145 | strcpy (name, n1); | |
1146 | strcat (name, n2); | |
1147 | strcat (name, n3); | |
1148 | sym = bfd_make_empty_symbol (abfd); | |
1149 | sym->name = name; | |
1150 | sym->section = sec; | |
1151 | sym->flags = flags; | |
1152 | sym->value = addr; | |
1153 | symtab[symptr++] = sym; | |
1154 | } | |
1155 | ||
1156 | static arelent *reltab = 0; | |
1157 | static int relcount = 0, relsize = 0; | |
1158 | ||
1159 | static void | |
1160 | quick_reloc (abfd, address, which_howto, symidx) | |
1161 | bfd *abfd; | |
1162 | int address; | |
1163 | int which_howto; | |
1164 | int symidx; | |
1165 | { | |
1166 | if (relcount >= (relsize-1)) | |
1167 | { | |
1168 | relsize += 10; | |
1169 | if (reltab) | |
1170 | reltab = (arelent *) xrealloc (reltab, relsize * sizeof (arelent)); | |
1171 | else | |
1172 | reltab = (arelent *) xmalloc (relsize * sizeof (arelent)); | |
1173 | } | |
1174 | reltab[relcount].address = address; | |
1175 | reltab[relcount].addend = 0; | |
1176 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
1177 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
1178 | relcount++; | |
1179 | } | |
1180 | ||
1181 | static void | |
1182 | save_relocs (asection *sec) | |
1183 | { | |
1184 | int i; | |
1185 | sec->relocation = reltab; | |
1186 | sec->reloc_count = relcount; | |
1187 | sec->orelocation = (arelent **) xmalloc ((relcount+1) * sizeof (arelent *)); | |
1188 | for (i=0; i<relcount; i++) | |
1189 | sec->orelocation[i] = sec->relocation + i; | |
1190 | sec->orelocation[relcount] = 0; | |
1191 | sec->flags |= SEC_RELOC; | |
1192 | reltab = 0; | |
1193 | relcount = relsize = 0; | |
1194 | } | |
1195 | ||
1196 | /* | |
1197 | * .section .idata$2 | |
1198 | * .global __head_my_dll | |
1199 | * __head_my_dll: | |
1200 | * .rva hname | |
1201 | * .long 0 | |
1202 | * .long 0 | |
1203 | * .rva __my_dll_iname | |
1204 | * .rva fthunk | |
1205 | * | |
1206 | * .section .idata$5 | |
1207 | * .long 0 | |
1208 | * fthunk: | |
1209 | * | |
1210 | * .section .idata$4 | |
1211 | * .long 0 | |
1212 | * hname: | |
1213 | */ | |
1214 | ||
1215 | static bfd * | |
1216 | make_head (parent) | |
1217 | bfd *parent; | |
1218 | { | |
1219 | asection *id2, *id5, *id4; | |
1220 | unsigned char *d2, *d5, *d4; | |
1221 | char *oname; | |
1222 | bfd *abfd; | |
1223 | ||
1224 | oname = (char *) xmalloc (20); | |
1225 | sprintf (oname, "d%06d.o", tmp_seq); | |
1226 | tmp_seq++; | |
1227 | ||
1228 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1229 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1230 | bfd_make_writable (abfd); |
1231 | ||
1232 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1233 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1234 | |
1235 | symptr = 0; | |
1236 | symtab = (asymbol **) xmalloc (6 * sizeof (asymbol *)); | |
1237 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); | |
1238 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1239 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
c6c37250 DD |
1240 | quick_symbol (abfd, U("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
1241 | quick_symbol (abfd, U(""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
1242 | ||
1243 | /* OK, pay attention here. I got confused myself looking back at | |
1244 | it. We create a four-byte section to mark the beginning of the | |
1245 | list, and we include an offset of 4 in the section, so that the | |
1246 | pointer to the list points to the *end* of this section, which is | |
1247 | the start of the list of sections from other objects. */ | |
252b5132 RH |
1248 | |
1249 | bfd_set_section_size (abfd, id2, 20); | |
1250 | d2 = (unsigned char *) xmalloc (20); | |
1251 | id2->contents = d2; | |
1252 | memset (d2, 0, 20); | |
1253 | d2[0] = d2[16] = 4; /* reloc addend */ | |
1254 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); | |
1255 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
1256 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
1257 | save_relocs (id2); | |
1258 | ||
1259 | bfd_set_section_size (abfd, id5, 4); | |
1260 | d5 = (unsigned char *) xmalloc (4); | |
1261 | id5->contents = d5; | |
1262 | memset (d5, 0, 4); | |
1263 | ||
1264 | bfd_set_section_size (abfd, id4, 4); | |
1265 | d4 = (unsigned char *) xmalloc (4); | |
1266 | id4->contents = d4; | |
1267 | memset (d4, 0, 4); | |
1268 | ||
1269 | bfd_set_symtab (abfd, symtab, symptr); | |
1270 | ||
1271 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
1272 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1273 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1274 | ||
1275 | bfd_make_readable (abfd); | |
1276 | return abfd; | |
1277 | } | |
1278 | ||
1279 | /* | |
1280 | * .section .idata$4 | |
1281 | * .long 0 | |
1282 | * .section .idata$5 | |
1283 | * .long 0 | |
1284 | * .section idata$7 | |
1285 | * .global __my_dll_iname | |
1286 | *__my_dll_iname: | |
1287 | * .asciz "my.dll" | |
1288 | */ | |
1289 | ||
1290 | static bfd * | |
1291 | make_tail (parent) | |
1292 | bfd *parent; | |
1293 | { | |
1294 | asection *id4, *id5, *id7; | |
1295 | unsigned char *d4, *d5, *d7; | |
1296 | int len; | |
1297 | char *oname; | |
1298 | bfd *abfd; | |
1299 | ||
1300 | oname = (char *) xmalloc (20); | |
1301 | sprintf (oname, "d%06d.o", tmp_seq); | |
1302 | tmp_seq++; | |
1303 | ||
1304 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1305 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1306 | bfd_make_writable (abfd); |
1307 | ||
1308 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1309 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1310 | |
1311 | symptr = 0; | |
1312 | symtab = (asymbol **) xmalloc (5 * sizeof (asymbol *)); | |
1313 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
1314 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1315 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
c6c37250 | 1316 | quick_symbol (abfd, U(""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 RH |
1317 | |
1318 | bfd_set_section_size (abfd, id4, 4); | |
1319 | d4 = (unsigned char *) xmalloc (4); | |
1320 | id4->contents = d4; | |
1321 | memset (d4, 0, 4); | |
1322 | ||
1323 | bfd_set_section_size (abfd, id5, 4); | |
1324 | d5 = (unsigned char *) xmalloc (4); | |
1325 | id5->contents = d5; | |
1326 | memset (d5, 0, 4); | |
1327 | ||
1328 | len = strlen (dll_filename)+1; | |
1329 | if (len & 1) | |
1330 | len ++; | |
1331 | bfd_set_section_size (abfd, id7, len); | |
1332 | d7 = (unsigned char *) xmalloc (len); | |
1333 | id7->contents = d7; | |
1334 | strcpy (d7, dll_filename); | |
1335 | ||
1336 | bfd_set_symtab (abfd, symtab, symptr); | |
1337 | ||
1338 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1339 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1340 | bfd_set_section_contents (abfd, id7, d7, 0, len); | |
1341 | ||
1342 | bfd_make_readable (abfd); | |
1343 | return abfd; | |
1344 | } | |
1345 | ||
1346 | /* | |
1347 | * .text | |
1348 | * .global _function | |
1349 | * .global ___imp_function | |
1350 | * .global __imp__function | |
1351 | *_function: | |
1352 | * jmp *__imp__function: | |
1353 | * | |
1354 | * .section idata$7 | |
1355 | * .long __head_my_dll | |
1356 | * | |
1357 | * .section .idata$5 | |
1358 | *___imp_function: | |
1359 | *__imp__function: | |
1360 | *iat? | |
1361 | * .section .idata$4 | |
1362 | *iat? | |
1363 | * .section .idata$6 | |
1364 | *ID<ordinal>: | |
1365 | * .short <hint> | |
1366 | * .asciz "function" xlate? (add underscore, kill at) | |
1367 | */ | |
1368 | ||
1369 | static unsigned char jmp_ix86_bytes[] = { | |
1370 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 | |
1371 | }; | |
1372 | ||
344a211f NC |
1373 | /* |
1374 | *_function: | |
1375 | * mov.l ip+8,r0 | |
1376 | * mov.l @r0,r0 | |
1377 | * jmp @r0 | |
1378 | * nop | |
1379 | * .dw __imp_function | |
1380 | */ | |
1381 | ||
1382 | static unsigned char jmp_sh_bytes[] = { | |
1383 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 | |
1384 | }; | |
1385 | ||
1386 | /* | |
1387 | *_function: | |
1388 | * lui $t0,<high:__imp_function> | |
1389 | * lw $t0,<low:__imp_function> | |
1390 | * jr $t0 | |
1391 | * nop | |
1392 | */ | |
1393 | ||
1394 | static unsigned char jmp_mips_bytes[] = { | |
1395 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, | |
1396 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
1397 | }; | |
252b5132 RH |
1398 | |
1399 | static bfd * | |
1400 | make_one (exp, parent) | |
1401 | def_file_export *exp; | |
1402 | bfd *parent; | |
1403 | { | |
1404 | asection *tx, *id7, *id5, *id4, *id6; | |
1405 | unsigned char *td, *d7, *d5, *d4, *d6; | |
1406 | int len; | |
1407 | char *oname; | |
1408 | bfd *abfd; | |
c6c37250 DD |
1409 | unsigned char *jmp_bytes; |
1410 | int jmp_byte_count; | |
1411 | ||
1412 | switch (pe_details->pe_arch) | |
1413 | { | |
1414 | case PE_ARCH_i386: | |
1415 | jmp_bytes = jmp_ix86_bytes; | |
1416 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
1417 | break; | |
344a211f NC |
1418 | case PE_ARCH_sh: |
1419 | jmp_bytes = jmp_sh_bytes; | |
1420 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
1421 | break; | |
1422 | case PE_ARCH_mips: | |
1423 | jmp_bytes = jmp_mips_bytes; | |
1424 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
1425 | break; | |
c6c37250 | 1426 | } |
252b5132 RH |
1427 | |
1428 | oname = (char *) xmalloc (20); | |
1429 | sprintf (oname, "d%06d.o", tmp_seq); | |
1430 | tmp_seq++; | |
1431 | ||
1432 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1433 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1434 | bfd_make_writable (abfd); |
1435 | ||
1436 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1437 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1438 | |
1439 | symptr = 0; | |
1440 | symtab = (asymbol **) xmalloc (10 * sizeof (asymbol *)); | |
1441 | tx = quick_section (abfd, ".text", SEC_CODE|SEC_HAS_CONTENTS, 2); | |
1442 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
1443 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1444 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
1445 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
7c9e78f8 DD |
1446 | if (! exp->flag_data) |
1447 | quick_symbol (abfd, U(""), exp->internal_name, "", tx, BSF_GLOBAL, 0); | |
c6c37250 DD |
1448 | quick_symbol (abfd, U("_head_"), dll_symname, "", UNDSEC, BSF_GLOBAL, 0); |
1449 | quick_symbol (abfd, U("__imp_"), exp->internal_name, "", id5, BSF_GLOBAL, 0); | |
870df5dc NC |
1450 | if (pe_dll_compat_implib) |
1451 | quick_symbol (abfd, U("__imp_"), exp->internal_name, "", | |
1452 | id5, BSF_GLOBAL, 0); | |
252b5132 | 1453 | |
c6c37250 DD |
1454 | bfd_set_section_size (abfd, tx, jmp_byte_count); |
1455 | td = (unsigned char *) xmalloc (jmp_byte_count); | |
252b5132 | 1456 | tx->contents = td; |
c6c37250 DD |
1457 | memcpy (td, jmp_bytes, jmp_byte_count); |
1458 | switch (pe_details->pe_arch) | |
1459 | { | |
1460 | case PE_ARCH_i386: | |
1461 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); | |
1462 | break; | |
344a211f NC |
1463 | case PE_ARCH_sh: |
1464 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
1465 | break; | |
1466 | case PE_ARCH_mips: | |
1467 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
1468 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
1469 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
1470 | break; | |
c6c37250 | 1471 | } |
252b5132 RH |
1472 | save_relocs (tx); |
1473 | ||
1474 | bfd_set_section_size (abfd, id7, 4); | |
1475 | d7 = (unsigned char *) xmalloc (4); | |
1476 | id7->contents = d7; | |
1477 | memset (d7, 0, 4); | |
1478 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 6); | |
1479 | save_relocs (id7); | |
1480 | ||
1481 | bfd_set_section_size (abfd, id5, 4); | |
1482 | d5 = (unsigned char *) xmalloc (4); | |
1483 | id5->contents = d5; | |
1484 | memset (d5, 0, 4); | |
1485 | if (exp->flag_noname) | |
1486 | { | |
1487 | d5[0] = exp->ordinal; | |
1488 | d5[1] = exp->ordinal >> 8; | |
1489 | d5[3] = 0x80; | |
1490 | } | |
1491 | else | |
1492 | { | |
1493 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
1494 | save_relocs (id5); | |
1495 | } | |
1496 | ||
1497 | bfd_set_section_size (abfd, id4, 4); | |
1498 | d4 = (unsigned char *) xmalloc (4); | |
1499 | id4->contents = d4; | |
1500 | memset (d4, 0, 4); | |
1501 | if (exp->flag_noname) | |
1502 | { | |
1503 | d5[0] = exp->ordinal; | |
1504 | d5[1] = exp->ordinal >> 8; | |
1505 | d5[3] = 0x80; | |
1506 | } | |
1507 | else | |
1508 | { | |
1509 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
1510 | save_relocs (id4); | |
1511 | } | |
1512 | ||
1513 | if (exp->flag_noname) | |
1514 | { | |
1515 | len = 0; | |
1516 | bfd_set_section_size (abfd, id6, 0); | |
1517 | } | |
1518 | else | |
1519 | { | |
1520 | len = strlen (exp->name) + 3; | |
1521 | if (len & 1) | |
1522 | len++; | |
1523 | bfd_set_section_size (abfd, id6, len); | |
1524 | d6 = (unsigned char *) xmalloc (len); | |
1525 | id6->contents = d6; | |
1526 | memset (d6, 0, len); | |
1527 | d6[0] = exp->hint & 0xff; | |
1528 | d6[1] = exp->hint >> 8; | |
1529 | strcpy (d6+2, exp->name); | |
1530 | } | |
1531 | ||
1532 | bfd_set_symtab (abfd, symtab, symptr); | |
1533 | ||
c6c37250 | 1534 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); |
252b5132 RH |
1535 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
1536 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1537 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1538 | if (!exp->flag_noname) | |
1539 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
1540 | ||
1541 | bfd_make_readable (abfd); | |
1542 | return abfd; | |
1543 | } | |
1544 | ||
1545 | void | |
1546 | pe_dll_generate_implib (def, impfilename) | |
1547 | def_file *def; | |
1069dd8d | 1548 | const char *impfilename; |
252b5132 RH |
1549 | { |
1550 | int i; | |
1551 | bfd *ar_head; | |
1552 | bfd *ar_tail; | |
1553 | bfd *outarch; | |
1554 | bfd *head = 0; | |
1555 | ||
5aaace27 | 1556 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 RH |
1557 | dll_symname = xstrdup (dll_filename); |
1558 | for (i=0; dll_symname[i]; i++) | |
1559 | if (!isalnum ((unsigned char) dll_symname[i])) | |
1560 | dll_symname[i] = '_'; | |
1561 | ||
1562 | unlink (impfilename); | |
1563 | ||
1564 | outarch = bfd_openw (impfilename, 0); | |
1565 | ||
1566 | if (!outarch) | |
1567 | { | |
1568 | /* xgettext:c-format */ | |
1569 | einfo (_("%XCan't open .lib file: %s\n"), impfilename); | |
1570 | return; | |
1571 | } | |
1572 | ||
1573 | /* xgettext:c-format */ | |
1574 | einfo (_("Creating library file: %s\n"), impfilename); | |
1575 | ||
1576 | bfd_set_format (outarch, bfd_archive); | |
1577 | outarch->has_armap = 1; | |
1578 | ||
1579 | /* Work out a reasonable size of things to put onto one line. */ | |
1580 | ||
1581 | ar_head = make_head (outarch); | |
252b5132 RH |
1582 | |
1583 | for (i = 0; i<def->num_exports; i++) | |
1584 | { | |
1585 | /* The import library doesn't know about the internal name */ | |
1586 | char *internal = def->exports[i].internal_name; | |
1587 | bfd *n; | |
1588 | def->exports[i].internal_name = def->exports[i].name; | |
1589 | n = make_one (def->exports+i, outarch); | |
1590 | n->next = head; | |
1591 | head = n; | |
1592 | def->exports[i].internal_name = internal; | |
1593 | } | |
1594 | ||
c6c37250 DD |
1595 | ar_tail = make_tail (outarch); |
1596 | ||
1597 | if (ar_head == NULL || ar_tail == NULL) | |
1598 | return; | |
1599 | ||
252b5132 RH |
1600 | /* Now stick them all into the archive */ |
1601 | ||
1602 | ar_head->next = head; | |
1603 | ar_tail->next = ar_head; | |
1604 | head = ar_tail; | |
1605 | ||
1606 | if (! bfd_set_archive_head (outarch, head)) | |
1607 | einfo ("%Xbfd_set_archive_head: %s\n", bfd_errmsg (bfd_get_error ())); | |
1608 | ||
1609 | if (! bfd_close (outarch)) | |
1610 | einfo ("%Xbfd_close %s: %s\n", impfilename, bfd_errmsg (bfd_get_error ())); | |
1611 | ||
1612 | while (head != NULL) | |
1613 | { | |
1614 | bfd *n = head->next; | |
1615 | bfd_close (head); | |
1616 | head = n; | |
1617 | } | |
1618 | } | |
1619 | ||
1620 | static void | |
1621 | add_bfd_to_link (abfd, name, link_info) | |
1622 | bfd *abfd; | |
1623 | char *name; | |
1624 | struct bfd_link_info *link_info; | |
1625 | { | |
1626 | lang_input_statement_type *fake_file; | |
1627 | fake_file = lang_add_input_file (name, | |
1628 | lang_input_file_is_fake_enum, | |
1629 | NULL); | |
1630 | fake_file->the_bfd = abfd; | |
1631 | ldlang_add_file (fake_file); | |
1632 | if (!bfd_link_add_symbols (abfd, link_info)) | |
1633 | einfo ("%Xaddsym %s: %s\n", name, bfd_errmsg (bfd_get_error ())); | |
1634 | } | |
1635 | ||
1636 | void | |
1637 | pe_process_import_defs (output_bfd, link_info) | |
1638 | bfd *output_bfd; | |
1639 | struct bfd_link_info *link_info; | |
1640 | { | |
1641 | def_file_module *module; | |
c6c37250 | 1642 | pe_dll_id_target(bfd_get_target (output_bfd)); |
252b5132 RH |
1643 | |
1644 | if (!pe_def_file) | |
1645 | return; | |
1646 | ||
1647 | for (module = pe_def_file->modules; module; module = module->next) | |
1648 | { | |
1649 | int i, do_this_dll; | |
1650 | ||
1651 | dll_filename = module->name; | |
1652 | dll_symname = xstrdup (module->name); | |
1653 | for (i=0; dll_symname[i]; i++) | |
1654 | if (!isalnum (dll_symname[i])) | |
1655 | dll_symname[i] = '_'; | |
1656 | ||
1657 | do_this_dll = 0; | |
1658 | ||
1659 | for (i=0; i<pe_def_file->num_imports; i++) | |
1660 | if (pe_def_file->imports[i].module == module) | |
1661 | { | |
1662 | def_file_export exp; | |
1663 | struct bfd_link_hash_entry *blhe; | |
1664 | ||
1665 | /* see if we need this import */ | |
1666 | char *name = (char *) xmalloc (strlen (pe_def_file->imports[i].internal_name) + 2); | |
c6c37250 | 1667 | sprintf (name, "%s%s", U(""), pe_def_file->imports[i].internal_name); |
252b5132 RH |
1668 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
1669 | false, false, false); | |
1670 | free (name); | |
1671 | if (blhe && blhe->type == bfd_link_hash_undefined) | |
1672 | { | |
1673 | bfd *one; | |
1674 | /* we do */ | |
1675 | if (!do_this_dll) | |
1676 | { | |
1677 | bfd *ar_head = make_head (output_bfd); | |
1678 | add_bfd_to_link (ar_head, ar_head->filename, link_info); | |
1679 | do_this_dll = 1; | |
1680 | } | |
1681 | exp.internal_name = pe_def_file->imports[i].internal_name; | |
1682 | exp.name = pe_def_file->imports[i].name; | |
1683 | exp.ordinal = pe_def_file->imports[i].ordinal; | |
1684 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
1685 | exp.flag_private = 0; | |
1686 | exp.flag_constant = 0; | |
1687 | exp.flag_data = 0; | |
1688 | exp.flag_noname = exp.name ? 0 : 1; | |
1689 | one = make_one (&exp, output_bfd); | |
1690 | add_bfd_to_link (one, one->filename, link_info); | |
1691 | } | |
1692 | } | |
1693 | if (do_this_dll) | |
1694 | { | |
1695 | bfd *ar_tail = make_tail (output_bfd); | |
1696 | add_bfd_to_link (ar_tail, ar_tail->filename, link_info); | |
1697 | } | |
1698 | ||
1699 | free (dll_symname); | |
1700 | } | |
1701 | } | |
1702 | ||
1703 | /************************************************************************ | |
1704 | ||
1705 | We were handed a *.DLL file. Parse it and turn it into a set of | |
1706 | IMPORTS directives in the def file. Return true if the file was | |
1707 | handled, false if not. | |
1708 | ||
1709 | ************************************************************************/ | |
1710 | ||
1711 | static unsigned int | |
1712 | pe_get16 (abfd, where) | |
1713 | bfd *abfd; | |
1714 | int where; | |
1715 | { | |
1716 | unsigned char b[2]; | |
1717 | bfd_seek (abfd, where, SEEK_SET); | |
1718 | bfd_read (b, 1, 2, abfd); | |
1719 | return b[0] + (b[1]<<8); | |
1720 | } | |
1721 | ||
1722 | static unsigned int | |
1723 | pe_get32 (abfd, where) | |
1724 | bfd *abfd; | |
1725 | int where; | |
1726 | { | |
1727 | unsigned char b[4]; | |
1728 | bfd_seek (abfd, where, SEEK_SET); | |
1729 | bfd_read (b, 1, 4, abfd); | |
1730 | return b[0] + (b[1]<<8) + (b[2]<<16) + (b[3]<<24); | |
1731 | } | |
1732 | ||
1733 | #if 0 /* This is not currently used. */ | |
1734 | ||
1735 | static unsigned int | |
1736 | pe_as16 (ptr) | |
1737 | void *ptr; | |
1738 | { | |
1739 | unsigned char *b = ptr; | |
1740 | return b[0] + (b[1]<<8); | |
1741 | } | |
1742 | ||
1743 | #endif | |
1744 | ||
1745 | static unsigned int | |
1746 | pe_as32 (ptr) | |
1747 | void *ptr; | |
1748 | { | |
1749 | unsigned char *b = ptr; | |
1750 | return b[0] + (b[1]<<8) + (b[2]<<16) + (b[3]<<24); | |
1751 | } | |
1752 | ||
1753 | boolean | |
1754 | pe_implied_import_dll (filename) | |
1069dd8d | 1755 | const char *filename; |
252b5132 RH |
1756 | { |
1757 | bfd *dll; | |
1758 | unsigned long pe_header_offset, opthdr_ofs, num_entries, i; | |
1759 | unsigned long export_rva, export_size, nsections, secptr, expptr; | |
1760 | unsigned char *expdata, *erva; | |
1761 | unsigned long name_rvas, ordinals, nexp, ordbase; | |
1069dd8d | 1762 | const char *dll_name; |
252b5132 RH |
1763 | |
1764 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
1765 | the middle of the .rdata section. */ | |
1766 | ||
c6c37250 | 1767 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
1768 | if (!dll) |
1769 | { | |
1770 | einfo ("%Xopen %s: %s\n", filename, bfd_errmsg (bfd_get_error ())); | |
1771 | return false; | |
1772 | } | |
1773 | /* PEI dlls seem to be bfd_objects */ | |
1774 | if (!bfd_check_format (dll, bfd_object)) | |
1775 | { | |
1776 | einfo ("%X%s: this doesn't appear to be a DLL\n", filename); | |
1777 | return false; | |
1778 | } | |
1779 | ||
1780 | dll_name = filename; | |
1781 | for (i=0; filename[i]; i++) | |
1782 | if (filename[i] == '/' || filename[i] == '\\' || filename[i] == ':') | |
1783 | dll_name = filename + i + 1; | |
1784 | ||
1785 | pe_header_offset = pe_get32 (dll, 0x3c); | |
1786 | opthdr_ofs = pe_header_offset + 4 + 20; | |
1787 | num_entries = pe_get32 (dll, opthdr_ofs + 92); | |
1788 | if (num_entries < 1) /* no exports */ | |
1789 | return false; | |
1790 | export_rva = pe_get32 (dll, opthdr_ofs + 96); | |
1791 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
1792 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); | |
1793 | secptr = (pe_header_offset + 4 + 20 + | |
1794 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
1795 | expptr = 0; | |
1796 | for (i=0; i<nsections; i++) | |
1797 | { | |
1798 | char sname[8]; | |
1799 | unsigned long secptr1 = secptr + 40 * i; | |
1800 | unsigned long vaddr = pe_get32 (dll, secptr1 + 12); | |
1801 | unsigned long vsize = pe_get32 (dll, secptr1 + 16); | |
1802 | unsigned long fptr = pe_get32 (dll, secptr1 + 20); | |
1803 | bfd_seek(dll, secptr1, SEEK_SET); | |
1804 | bfd_read(sname, 1, 8, dll); | |
1805 | if (vaddr <= export_rva && vaddr+vsize > export_rva) | |
1806 | { | |
1807 | expptr = fptr + (export_rva - vaddr); | |
1808 | if (export_rva + export_size > vaddr + vsize) | |
1809 | export_size = vsize - (export_rva - vaddr); | |
1810 | break; | |
1811 | } | |
1812 | } | |
1813 | ||
1814 | expdata = (unsigned char *) xmalloc (export_size); | |
1815 | bfd_seek (dll, expptr, SEEK_SET); | |
1816 | bfd_read (expdata, 1, export_size, dll); | |
1817 | erva = expdata - export_rva; | |
1818 | ||
1819 | if (pe_def_file == 0) | |
1820 | pe_def_file = def_file_empty(); | |
1821 | ||
1822 | nexp = pe_as32 (expdata+24); | |
1823 | name_rvas = pe_as32 (expdata+32); | |
1824 | ordinals = pe_as32 (expdata+36); | |
1825 | ordbase = pe_as32 (expdata+16); | |
1826 | for (i=0; i<nexp; i++) | |
1827 | { | |
1828 | unsigned long name_rva = pe_as32 (erva+name_rvas+i*4); | |
1829 | def_file_import *imp; | |
1830 | imp = def_file_add_import (pe_def_file, erva+name_rva, dll_name, | |
1831 | i, 0); | |
1832 | } | |
1833 | ||
1834 | return true; | |
1835 | } | |
1836 | ||
1837 | /************************************************************************ | |
1838 | ||
1839 | These are the main functions, called from the emulation. The first | |
1840 | is called after the bfds are read, so we can guess at how much space | |
1841 | we need. The second is called after everything is placed, so we | |
1842 | can put the right values in place. | |
1843 | ||
1844 | ************************************************************************/ | |
1845 | ||
1846 | void | |
1847 | pe_dll_build_sections (abfd, info) | |
1848 | bfd *abfd; | |
1849 | struct bfd_link_info *info; | |
1850 | { | |
c6c37250 | 1851 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
1852 | process_def_file (abfd, info); |
1853 | ||
1854 | generate_edata (abfd, info); | |
c6c37250 DD |
1855 | build_filler_bfd (1); |
1856 | } | |
1857 | ||
1858 | void | |
1859 | pe_exe_build_sections (abfd, info) | |
1860 | bfd *abfd; | |
1069dd8d | 1861 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
c6c37250 DD |
1862 | { |
1863 | pe_dll_id_target (bfd_get_target (abfd)); | |
1864 | build_filler_bfd (0); | |
252b5132 RH |
1865 | } |
1866 | ||
1867 | void | |
1868 | pe_dll_fill_sections (abfd, info) | |
1869 | bfd *abfd; | |
1870 | struct bfd_link_info *info; | |
1871 | { | |
c6c37250 | 1872 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
1873 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
1874 | ||
1875 | generate_reloc (abfd, info); | |
1876 | if (reloc_sz > 0) | |
1877 | { | |
1878 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
1879 | ||
1880 | /* Resize the sections. */ | |
1881 | lang_size_sections (stat_ptr->head, abs_output_section, | |
1882 | &stat_ptr->head, 0, (bfd_vma) 0, false); | |
1883 | ||
1884 | /* Redo special stuff. */ | |
1885 | ldemul_after_allocation (); | |
1886 | ||
1887 | /* Do the assignments again. */ | |
1888 | lang_do_assignments (stat_ptr->head, | |
1889 | abs_output_section, | |
1890 | (fill_type) 0, (bfd_vma) 0); | |
1891 | } | |
1892 | ||
1893 | fill_edata (abfd, info); | |
1894 | ||
1895 | pe_data (abfd)->dll = 1; | |
1896 | ||
1897 | edata_s->contents = edata_d; | |
1898 | reloc_s->contents = reloc_d; | |
1899 | } | |
c6c37250 DD |
1900 | |
1901 | void | |
1902 | pe_exe_fill_sections (abfd, info) | |
1903 | bfd *abfd; | |
1904 | struct bfd_link_info *info; | |
1905 | { | |
1906 | pe_dll_id_target (bfd_get_target (abfd)); | |
1907 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; | |
1908 | ||
1909 | generate_reloc (abfd, info); | |
1910 | if (reloc_sz > 0) | |
1911 | { | |
1912 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
1913 | ||
1914 | /* Resize the sections. */ | |
1915 | lang_size_sections (stat_ptr->head, abs_output_section, | |
1916 | &stat_ptr->head, 0, (bfd_vma) 0, false); | |
1917 | ||
1918 | /* Redo special stuff. */ | |
1919 | ldemul_after_allocation (); | |
1920 | ||
1921 | /* Do the assignments again. */ | |
1922 | lang_do_assignments (stat_ptr->head, | |
1923 | abs_output_section, | |
1924 | (fill_type) 0, (bfd_vma) 0); | |
1925 | } | |
1926 | reloc_s->contents = reloc_d; | |
1927 | } |