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" | |
b71e2778 | 37 | #include "ldfile.h" |
252b5132 RH |
38 | #include "ldemul.h" |
39 | #include "coff/internal.h" | |
40 | #include "../bfd/libcoff.h" | |
41 | #include "deffile.h" | |
1069dd8d | 42 | #include "pe-dll.h" |
252b5132 RH |
43 | |
44 | /************************************************************************ | |
45 | ||
46 | This file turns a regular Windows PE image into a DLL. Because of | |
47 | the complexity of this operation, it has been broken down into a | |
48 | number of separate modules which are all called by the main function | |
49 | at the end of this file. This function is not re-entrant and is | |
50 | normally only called once, so static variables are used to reduce | |
51 | the number of parameters and return values required. | |
52 | ||
53 | See also: ld/emultempl/pe.em | |
54 | ||
55 | ************************************************************************/ | |
56 | ||
57 | /* for emultempl/pe.em */ | |
58 | ||
59 | def_file *pe_def_file = 0; | |
60 | int pe_dll_export_everything = 0; | |
61 | int pe_dll_do_default_excludes = 1; | |
62 | int pe_dll_kill_ats = 0; | |
63 | int pe_dll_stdcall_aliases = 0; | |
870df5dc NC |
64 | int pe_dll_warn_dup_exports = 0; |
65 | int pe_dll_compat_implib = 0; | |
252b5132 RH |
66 | |
67 | /************************************************************************ | |
68 | ||
69 | static variables and types | |
70 | ||
71 | ************************************************************************/ | |
72 | ||
73 | static bfd_vma image_base; | |
74 | ||
75 | static bfd *filler_bfd; | |
76 | static struct sec *edata_s, *reloc_s; | |
77 | static unsigned char *edata_d, *reloc_d; | |
1069dd8d | 78 | static size_t edata_sz, reloc_sz; |
252b5132 | 79 | |
c6c37250 DD |
80 | typedef struct { |
81 | char *target_name; | |
82 | char *object_target; | |
1069dd8d | 83 | unsigned int imagebase_reloc; |
c6c37250 DD |
84 | int pe_arch; |
85 | int bfd_arch; | |
86 | int underscored; | |
87 | } pe_details_type; | |
88 | ||
89 | #define PE_ARCH_i386 1 | |
344a211f NC |
90 | #define PE_ARCH_sh 2 |
91 | #define PE_ARCH_mips 3 | |
92 | #define PE_ARCH_arm 4 | |
c6c37250 DD |
93 | |
94 | static pe_details_type pe_detail_list[] = { | |
95 | { | |
96 | "pei-i386", | |
97 | "pe-i386", | |
98 | 7 /* R_IMAGEBASE */, | |
99 | PE_ARCH_i386, | |
100 | bfd_arch_i386, | |
101 | 1 | |
102 | }, | |
344a211f NC |
103 | { |
104 | "pei-shl", | |
105 | "pe-shl", | |
106 | 16 /* R_SH_IMAGEBASE */, | |
107 | PE_ARCH_sh, | |
108 | bfd_arch_sh, | |
109 | 1 | |
110 | }, | |
111 | { | |
112 | "pei-mips", | |
113 | "pe-mips", | |
114 | 34 /* MIPS_R_RVA */, | |
115 | PE_ARCH_mips, | |
116 | bfd_arch_mips, | |
117 | 0 | |
118 | }, | |
119 | { | |
120 | "pei-arm-little", | |
121 | "pe-arm-little", | |
122 | 11 /* ARM_RVA32 */, | |
123 | PE_ARCH_arm, | |
124 | bfd_arch_arm, | |
125 | 0 | |
126 | }, | |
1069dd8d | 127 | { NULL, NULL, 0, 0, 0, 0 } |
c6c37250 DD |
128 | }; |
129 | ||
130 | static pe_details_type *pe_details; | |
131 | ||
132 | #define U(str) (pe_details->underscored ? "_" str : str) | |
133 | ||
134 | void | |
135 | pe_dll_id_target (target) | |
1069dd8d | 136 | const char *target; |
c6c37250 DD |
137 | { |
138 | int i; | |
139 | for (i=0; pe_detail_list[i].target_name; i++) | |
9d68bc82 DD |
140 | if (strcmp (pe_detail_list[i].target_name, target) == 0 |
141 | || strcmp (pe_detail_list[i].object_target, target) == 0) | |
c6c37250 DD |
142 | { |
143 | pe_details = pe_detail_list+i; | |
144 | return; | |
145 | } | |
146 | einfo (_("%XUnsupported PEI architecture: %s\n"), target); | |
147 | exit (1); | |
148 | } | |
149 | ||
252b5132 RH |
150 | /************************************************************************ |
151 | ||
152 | Helper functions for qsort. Relocs must be sorted so that we can write | |
153 | them out by pages. | |
154 | ||
155 | ************************************************************************/ | |
156 | ||
c6c37250 DD |
157 | typedef struct { |
158 | bfd_vma vma; | |
159 | char type; | |
160 | short extra; | |
161 | } reloc_data_type; | |
162 | ||
252b5132 RH |
163 | static int |
164 | reloc_sort (va, vb) | |
165 | const void *va, *vb; | |
166 | { | |
c6c37250 DD |
167 | bfd_vma a = ((reloc_data_type *) va)->vma; |
168 | bfd_vma b = ((reloc_data_type *) vb)->vma; | |
169 | return (a > b) ? 1 : ((a < b) ? -1 : 0); | |
252b5132 RH |
170 | } |
171 | ||
172 | static int | |
173 | pe_export_sort (va, vb) | |
174 | const void *va, *vb; | |
175 | { | |
176 | def_file_export *a = (def_file_export *) va; | |
177 | def_file_export *b = (def_file_export *) vb; | |
178 | return strcmp (a->name, b->name); | |
179 | } | |
180 | ||
181 | /************************************************************************ | |
182 | ||
183 | Read and process the .DEF file | |
184 | ||
185 | ************************************************************************/ | |
186 | ||
187 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
188 | exported_symbol_sections[i] to tag whether or not the symbol was | |
189 | defined, since we can't export symbols we don't have. */ | |
190 | ||
191 | static bfd_vma *exported_symbol_offsets; | |
192 | static struct sec **exported_symbol_sections; | |
193 | ||
194 | static int export_table_size; | |
195 | static int count_exported; | |
196 | static int count_exported_byname; | |
197 | static int count_with_ordinals; | |
198 | static const char *dll_name; | |
199 | static int min_ordinal, max_ordinal; | |
200 | static int *exported_symbols; | |
201 | ||
202 | typedef struct exclude_list_struct | |
203 | { | |
204 | char *string; | |
205 | struct exclude_list_struct *next; | |
206 | } | |
207 | exclude_list_struct; | |
208 | static struct exclude_list_struct *excludes = 0; | |
209 | ||
210 | void | |
211 | pe_dll_add_excludes (new_excludes) | |
212 | const char *new_excludes; | |
213 | { | |
214 | char *local_copy; | |
215 | char *exclude_string; | |
216 | ||
217 | local_copy = xstrdup (new_excludes); | |
218 | ||
219 | exclude_string = strtok (local_copy, ",:"); | |
220 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
221 | { | |
222 | struct exclude_list_struct *new_exclude; | |
223 | ||
224 | new_exclude = ((struct exclude_list_struct *) | |
225 | xmalloc (sizeof (struct exclude_list_struct))); | |
226 | new_exclude->string = (char *) xmalloc (strlen (exclude_string) + 1); | |
227 | strcpy (new_exclude->string, exclude_string); | |
228 | new_exclude->next = excludes; | |
229 | excludes = new_exclude; | |
230 | } | |
231 | ||
232 | free (local_copy); | |
233 | } | |
234 | ||
235 | static int | |
236 | auto_export (d, n) | |
237 | def_file *d; | |
238 | const char *n; | |
239 | { | |
240 | int i; | |
241 | struct exclude_list_struct *ex; | |
242 | for (i = 0; i < d->num_exports; i++) | |
243 | if (strcmp (d->exports[i].name, n) == 0) | |
244 | return 0; | |
245 | if (pe_dll_do_default_excludes) | |
246 | { | |
247 | if (strcmp (n, "DllMain@12") == 0) | |
248 | return 0; | |
249 | if (strcmp (n, "DllEntryPoint@0") == 0) | |
250 | return 0; | |
251 | if (strcmp (n, "impure_ptr") == 0) | |
252 | return 0; | |
253 | } | |
254 | for (ex = excludes; ex; ex = ex->next) | |
255 | if (strcmp (n, ex->string) == 0) | |
256 | return 0; | |
257 | return 1; | |
258 | } | |
259 | ||
260 | static void | |
261 | process_def_file (abfd, info) | |
1069dd8d | 262 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
263 | struct bfd_link_info *info; |
264 | { | |
265 | int i, j; | |
266 | struct bfd_link_hash_entry *blhe; | |
267 | bfd *b; | |
268 | struct sec *s; | |
269 | def_file_export *e=0; | |
270 | ||
271 | if (!pe_def_file) | |
272 | pe_def_file = def_file_empty (); | |
273 | ||
274 | /* First, run around to all the objects looking for the .drectve | |
275 | sections, and push those into the def file too */ | |
276 | ||
277 | for (b = info->input_bfds; b; b = b->link_next) | |
278 | { | |
279 | s = bfd_get_section_by_name (b, ".drectve"); | |
280 | if (s) | |
281 | { | |
282 | int size = bfd_get_section_size_before_reloc (s); | |
283 | char *buf = xmalloc (size); | |
284 | bfd_get_section_contents (b, s, buf, 0, size); | |
285 | def_file_add_directive (pe_def_file, buf, size); | |
286 | free (buf); | |
287 | } | |
288 | } | |
289 | ||
290 | /* Now, maybe export everything else the default way */ | |
291 | ||
292 | if (pe_dll_export_everything || pe_def_file->num_exports == 0) | |
293 | { | |
294 | for (b = info->input_bfds; b; b = b->link_next) | |
295 | { | |
296 | asymbol **symbols; | |
297 | int nsyms, symsize; | |
298 | ||
299 | symsize = bfd_get_symtab_upper_bound (b); | |
300 | symbols = (asymbol **) xmalloc (symsize); | |
301 | nsyms = bfd_canonicalize_symtab (b, symbols); | |
302 | ||
303 | for (j = 0; j < nsyms; j++) | |
304 | { | |
874c8c99 | 305 | if (symbols[j]->flags & BSF_GLOBAL) |
252b5132 RH |
306 | { |
307 | const char *sn = symbols[j]->name; | |
308 | if (*sn == '_') | |
309 | sn++; | |
310 | if (auto_export (pe_def_file, sn)) | |
311 | def_file_add_export (pe_def_file, sn, 0, -1); | |
312 | } | |
313 | } | |
314 | } | |
315 | } | |
316 | ||
317 | #undef NE | |
318 | #define NE pe_def_file->num_exports | |
319 | ||
320 | /* Canonicalize the export list */ | |
321 | ||
322 | if (pe_dll_kill_ats) | |
323 | { | |
324 | for (i = 0; i < NE; i++) | |
325 | { | |
326 | if (strchr (pe_def_file->exports[i].name, '@')) | |
327 | { | |
328 | /* This will preserve internal_name, which may have been pointing | |
329 | to the same memory as name, or might not have */ | |
330 | char *tmp = xstrdup (pe_def_file->exports[i].name); | |
331 | *(strchr (tmp, '@')) = 0; | |
332 | pe_def_file->exports[i].name = tmp; | |
333 | } | |
334 | } | |
335 | } | |
336 | ||
337 | if (pe_dll_stdcall_aliases) | |
338 | { | |
339 | for (i = 0; i < NE; i++) | |
340 | { | |
341 | if (strchr (pe_def_file->exports[i].name, '@')) | |
342 | { | |
343 | char *tmp = xstrdup (pe_def_file->exports[i].name); | |
344 | *(strchr (tmp, '@')) = 0; | |
345 | if (auto_export (pe_def_file, tmp)) | |
346 | def_file_add_export (pe_def_file, tmp, | |
347 | pe_def_file->exports[i].internal_name, -1); | |
348 | else | |
349 | free (tmp); | |
350 | } | |
351 | } | |
352 | } | |
353 | ||
354 | e = pe_def_file->exports; /* convenience, but watch out for it changing */ | |
355 | ||
356 | exported_symbol_offsets = (bfd_vma *) xmalloc (NE * sizeof (bfd_vma)); | |
357 | exported_symbol_sections = (struct sec **) xmalloc (NE * sizeof (struct sec *)); | |
358 | ||
359 | memset (exported_symbol_sections, 0, NE * sizeof (struct sec *)); | |
360 | max_ordinal = 0; | |
361 | min_ordinal = 65536; | |
362 | count_exported = 0; | |
363 | count_exported_byname = 0; | |
364 | count_with_ordinals = 0; | |
365 | ||
366 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), pe_export_sort); | |
367 | for (i = 0, j = 0; i < NE; i++) | |
368 | { | |
369 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
370 | { | |
870df5dc | 371 | /* This is a duplicate. */ |
252b5132 RH |
372 | if (e[j - 1].ordinal != -1 |
373 | && e[i].ordinal != -1 | |
374 | && e[j - 1].ordinal != e[i].ordinal) | |
375 | { | |
870df5dc NC |
376 | if (pe_dll_warn_dup_exports) |
377 | /* xgettext:c-format */ | |
378 | einfo (_("%XError, duplicate EXPORT with oridinals: %s (%d vs %d)\n"), | |
379 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); | |
252b5132 RH |
380 | } |
381 | else | |
382 | { | |
870df5dc NC |
383 | if (pe_dll_warn_dup_exports) |
384 | /* xgettext:c-format */ | |
385 | einfo (_("Warning, duplicate EXPORT: %s\n"), | |
386 | e[j - 1].name); | |
252b5132 RH |
387 | } |
388 | if (e[i].ordinal) | |
389 | e[j - 1].ordinal = e[i].ordinal; | |
390 | e[j - 1].flag_private |= e[i].flag_private; | |
391 | e[j - 1].flag_constant |= e[i].flag_constant; | |
392 | e[j - 1].flag_noname |= e[i].flag_noname; | |
393 | e[j - 1].flag_data |= e[i].flag_data; | |
394 | } | |
395 | else | |
396 | { | |
397 | if (i != j) | |
398 | e[j] = e[i]; | |
399 | j++; | |
400 | } | |
401 | } | |
402 | pe_def_file->num_exports = j; /* == NE */ | |
403 | ||
404 | for (i = 0; i < NE; i++) | |
405 | { | |
406 | char *name = (char *) xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); | |
c6c37250 DD |
407 | if (pe_details->underscored) |
408 | { | |
409 | *name = '_'; | |
410 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
411 | } | |
412 | else | |
413 | strcpy (name, pe_def_file->exports[i].internal_name); | |
252b5132 RH |
414 | |
415 | blhe = bfd_link_hash_lookup (info->hash, | |
416 | name, | |
417 | false, false, true); | |
418 | ||
8a5b676c DD |
419 | if (blhe |
420 | && (blhe->type == bfd_link_hash_defined | |
421 | || (blhe->type == bfd_link_hash_common))) | |
252b5132 RH |
422 | { |
423 | count_exported++; | |
424 | if (!pe_def_file->exports[i].flag_noname) | |
425 | count_exported_byname++; | |
8a5b676c DD |
426 | |
427 | /* Only fill in the sections. The actual offsets are computed | |
428 | in fill_exported_offsets() after common symbols are laid | |
429 | out. */ | |
430 | if (blhe->type == bfd_link_hash_defined) | |
431 | exported_symbol_sections[i] = blhe->u.def.section; | |
432 | else | |
433 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
344a211f | 434 | |
252b5132 RH |
435 | if (pe_def_file->exports[i].ordinal != -1) |
436 | { | |
437 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
438 | max_ordinal = pe_def_file->exports[i].ordinal; | |
439 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
440 | min_ordinal = pe_def_file->exports[i].ordinal; | |
441 | count_with_ordinals++; | |
442 | } | |
443 | } | |
444 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
445 | { | |
446 | /* xgettext:c-format */ | |
447 | einfo (_("%XCannot export %s: symbol not defined\n"), | |
448 | pe_def_file->exports[i].internal_name); | |
449 | } | |
450 | else if (blhe) | |
451 | { | |
452 | /* xgettext:c-format */ | |
453 | einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"), | |
454 | pe_def_file->exports[i].internal_name, | |
455 | blhe->type, bfd_link_hash_defined); | |
456 | } | |
457 | else | |
458 | { | |
459 | /* xgettext:c-format */ | |
460 | einfo (_("%XCannot export %s: symbol not found\n"), | |
461 | pe_def_file->exports[i].internal_name); | |
462 | } | |
463 | free (name); | |
464 | } | |
465 | } | |
466 | ||
467 | /************************************************************************ | |
468 | ||
469 | Build the bfd that will contain .edata and .reloc sections | |
470 | ||
471 | ************************************************************************/ | |
472 | ||
473 | static void | |
c6c37250 DD |
474 | build_filler_bfd (include_edata) |
475 | int include_edata; | |
252b5132 RH |
476 | { |
477 | lang_input_statement_type *filler_file; | |
478 | filler_file = lang_add_input_file ("dll stuff", | |
479 | lang_input_file_is_fake_enum, | |
480 | NULL); | |
481 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", output_bfd); | |
482 | if (filler_bfd == NULL | |
483 | || !bfd_set_arch_mach (filler_bfd, | |
484 | bfd_get_arch (output_bfd), | |
485 | bfd_get_mach (output_bfd))) | |
486 | { | |
487 | einfo ("%X%P: can not create BFD %E\n"); | |
488 | return; | |
489 | } | |
490 | ||
c6c37250 | 491 | if (include_edata) |
252b5132 | 492 | { |
c6c37250 DD |
493 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
494 | if (edata_s == NULL | |
495 | || !bfd_set_section_flags (filler_bfd, edata_s, | |
496 | (SEC_HAS_CONTENTS | |
497 | | SEC_ALLOC | |
498 | | SEC_LOAD | |
499 | | SEC_KEEP | |
500 | | SEC_IN_MEMORY))) | |
501 | { | |
502 | einfo ("%X%P: can not create .edata section: %E\n"); | |
503 | return; | |
504 | } | |
505 | bfd_set_section_size (filler_bfd, edata_s, edata_sz); | |
252b5132 | 506 | } |
252b5132 RH |
507 | |
508 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
509 | if (reloc_s == NULL | |
510 | || !bfd_set_section_flags (filler_bfd, reloc_s, | |
511 | (SEC_HAS_CONTENTS | |
512 | | SEC_ALLOC | |
513 | | SEC_LOAD | |
514 | | SEC_KEEP | |
515 | | SEC_IN_MEMORY))) | |
516 | { | |
517 | einfo ("%X%P: can not create .reloc section: %E\n"); | |
518 | return; | |
519 | } | |
520 | bfd_set_section_size (filler_bfd, reloc_s, 0); | |
521 | ||
522 | ldlang_add_file (filler_file); | |
523 | } | |
524 | ||
525 | /************************************************************************ | |
526 | ||
527 | Gather all the exported symbols and build the .edata section | |
528 | ||
529 | ************************************************************************/ | |
530 | ||
531 | static void | |
532 | generate_edata (abfd, info) | |
533 | bfd *abfd; | |
1069dd8d | 534 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
535 | { |
536 | int i, next_ordinal; | |
537 | int name_table_size = 0; | |
538 | const char *dlnp; | |
539 | ||
540 | /* First, we need to know how many exported symbols there are, | |
541 | and what the range of ordinals is. */ | |
542 | ||
543 | if (pe_def_file->name) | |
544 | { | |
545 | dll_name = pe_def_file->name; | |
546 | } | |
547 | else | |
548 | { | |
549 | dll_name = abfd->filename; | |
550 | for (dlnp = dll_name; *dlnp; dlnp++) | |
551 | { | |
552 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') | |
553 | dll_name = dlnp + 1; | |
554 | } | |
555 | } | |
556 | ||
557 | if (count_with_ordinals && max_ordinal > count_exported) | |
558 | { | |
559 | if (min_ordinal > max_ordinal - count_exported + 1) | |
560 | min_ordinal = max_ordinal - count_exported + 1; | |
561 | } | |
562 | else | |
563 | { | |
564 | min_ordinal = 1; | |
565 | max_ordinal = count_exported; | |
566 | } | |
567 | export_table_size = max_ordinal - min_ordinal + 1; | |
568 | ||
569 | exported_symbols = (int *) xmalloc (export_table_size * sizeof (int)); | |
570 | for (i = 0; i < export_table_size; i++) | |
571 | exported_symbols[i] = -1; | |
572 | ||
573 | /* Now we need to assign ordinals to those that don't have them */ | |
574 | for (i = 0; i < NE; i++) | |
575 | { | |
576 | if (exported_symbol_sections[i]) | |
577 | { | |
578 | if (pe_def_file->exports[i].ordinal != -1) | |
579 | { | |
580 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
581 | int pi = exported_symbols[ei]; | |
582 | if (pi != -1) | |
583 | { | |
584 | /* xgettext:c-format */ | |
585 | einfo (_("%XError, oridinal used twice: %d (%s vs %s)\n"), | |
586 | pe_def_file->exports[i].ordinal, | |
587 | pe_def_file->exports[i].name, | |
588 | pe_def_file->exports[pi].name); | |
589 | } | |
590 | exported_symbols[ei] = i; | |
591 | } | |
592 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
593 | } | |
594 | } | |
595 | ||
596 | next_ordinal = min_ordinal; | |
597 | for (i = 0; i < NE; i++) | |
598 | if (exported_symbol_sections[i]) | |
599 | if (pe_def_file->exports[i].ordinal == -1) | |
600 | { | |
601 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
602 | next_ordinal++; | |
603 | exported_symbols[next_ordinal - min_ordinal] = i; | |
604 | pe_def_file->exports[i].ordinal = next_ordinal; | |
605 | } | |
606 | ||
607 | /* OK, now we can allocate some memory */ | |
608 | ||
609 | edata_sz = (40 /* directory */ | |
610 | + 4 * export_table_size /* addresses */ | |
611 | + 4 * count_exported_byname /* name ptrs */ | |
612 | + 2 * count_exported_byname /* ordinals */ | |
613 | + name_table_size + strlen (dll_name) + 1); | |
614 | } | |
615 | ||
8a5b676c DD |
616 | /* Fill the exported symbol offsets. The preliminary work has already |
617 | been done in process_def_file(). */ | |
618 | ||
619 | static void | |
620 | fill_exported_offsets (abfd, info) | |
f0c87f88 | 621 | bfd *abfd ATTRIBUTE_UNUSED; |
8a5b676c DD |
622 | struct bfd_link_info *info; |
623 | { | |
f0c87f88 | 624 | int i; |
8a5b676c | 625 | struct bfd_link_hash_entry *blhe; |
f0c87f88 | 626 | |
8a5b676c DD |
627 | for (i = 0; i < pe_def_file->num_exports; i++) |
628 | { | |
629 | char *name = (char *) xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); | |
630 | if (pe_details->underscored) | |
631 | { | |
632 | *name = '_'; | |
633 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
634 | } | |
635 | else | |
636 | strcpy (name, pe_def_file->exports[i].internal_name); | |
637 | ||
638 | blhe = bfd_link_hash_lookup (info->hash, | |
639 | name, | |
640 | false, false, true); | |
641 | ||
642 | if (blhe && (blhe->type == bfd_link_hash_defined)) | |
643 | { | |
644 | exported_symbol_offsets[i] = blhe->u.def.value; | |
645 | } | |
646 | free (name); | |
647 | } | |
648 | } | |
649 | ||
252b5132 RH |
650 | static void |
651 | fill_edata (abfd, info) | |
652 | bfd *abfd; | |
1069dd8d | 653 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
654 | { |
655 | int i, hint; | |
656 | unsigned char *edirectory; | |
657 | unsigned long *eaddresses; | |
658 | unsigned long *enameptrs; | |
659 | unsigned short *eordinals; | |
660 | unsigned char *enamestr; | |
661 | time_t now; | |
662 | ||
663 | time (&now); | |
664 | ||
665 | edata_d = (unsigned char *) xmalloc (edata_sz); | |
666 | ||
667 | /* Note use of array pointer math here */ | |
668 | edirectory = edata_d; | |
669 | eaddresses = (unsigned long *) (edata_d + 40); | |
670 | enameptrs = eaddresses + export_table_size; | |
671 | eordinals = (unsigned short *) (enameptrs + count_exported_byname); | |
672 | enamestr = (char *) (eordinals + count_exported_byname); | |
673 | ||
674 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) + edata_s->output_section->vma - image_base) | |
675 | ||
676 | memset (edata_d, 0, 40); | |
677 | bfd_put_32 (abfd, now, edata_d + 4); | |
678 | if (pe_def_file->version_major != -1) | |
679 | { | |
680 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
681 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
682 | } | |
683 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); | |
684 | strcpy (enamestr, dll_name); | |
685 | enamestr += strlen (enamestr) + 1; | |
686 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
687 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
688 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
689 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
690 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
691 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
692 | ||
8a5b676c DD |
693 | fill_exported_offsets (abfd, info); |
694 | ||
252b5132 RH |
695 | /* Ok, now for the filling in part */ |
696 | hint = 0; | |
697 | for (i = 0; i < export_table_size; i++) | |
698 | { | |
699 | int s = exported_symbols[i]; | |
700 | if (s != -1) | |
701 | { | |
702 | struct sec *ssec = exported_symbol_sections[s]; | |
703 | unsigned long srva = (exported_symbol_offsets[s] | |
704 | + ssec->output_section->vma | |
705 | + ssec->output_offset); | |
706 | ||
707 | bfd_put_32 (abfd, srva - image_base, (void *) (eaddresses + i)); | |
708 | if (!pe_def_file->exports[s].flag_noname) | |
709 | { | |
710 | char *ename = pe_def_file->exports[s].name; | |
711 | bfd_put_32 (abfd, ERVA (enamestr), (void *) enameptrs); | |
712 | strcpy (enamestr, ename); | |
713 | enamestr += strlen (enamestr) + 1; | |
714 | bfd_put_16 (abfd, i, (void *) eordinals); | |
715 | enameptrs++; | |
716 | pe_def_file->exports[s].hint = hint++; | |
717 | } | |
718 | eordinals++; | |
719 | } | |
720 | } | |
721 | } | |
722 | ||
723 | /************************************************************************ | |
724 | ||
725 | Gather all the relocations and build the .reloc section | |
726 | ||
727 | ************************************************************************/ | |
728 | ||
729 | static void | |
730 | generate_reloc (abfd, info) | |
731 | bfd *abfd; | |
732 | struct bfd_link_info *info; | |
733 | { | |
734 | ||
735 | /* for .reloc stuff */ | |
c6c37250 | 736 | reloc_data_type *reloc_data; |
252b5132 RH |
737 | int total_relocs = 0; |
738 | int i; | |
739 | unsigned long sec_page = (unsigned long) (-1); | |
740 | unsigned long page_ptr, page_count; | |
741 | int bi; | |
742 | bfd *b; | |
743 | struct sec *s; | |
744 | ||
745 | total_relocs = 0; | |
746 | for (b = info->input_bfds; b; b = b->link_next) | |
747 | for (s = b->sections; s; s = s->next) | |
748 | total_relocs += s->reloc_count; | |
749 | ||
c6c37250 | 750 | reloc_data = (reloc_data_type *) xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
751 | |
752 | total_relocs = 0; | |
753 | bi = 0; | |
754 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next) | |
755 | { | |
756 | arelent **relocs; | |
757 | int relsize, nrelocs, i; | |
758 | ||
759 | for (s = b->sections; s; s = s->next) | |
760 | { | |
761 | unsigned long sec_vma = s->output_section->vma + s->output_offset; | |
762 | asymbol **symbols; | |
763 | int nsyms, symsize; | |
764 | ||
765 | /* if it's not loaded, we don't need to relocate it this way */ | |
766 | if (!(s->output_section->flags & SEC_LOAD)) | |
767 | continue; | |
768 | ||
769 | /* I don't know why there would be a reloc for these, but I've | |
770 | seen it happen - DJ */ | |
771 | if (s->output_section == &bfd_abs_section) | |
772 | continue; | |
773 | ||
774 | if (s->output_section->vma == 0) | |
775 | { | |
776 | /* Huh? Shouldn't happen, but punt if it does */ | |
777 | einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n", | |
778 | s->output_section->name, s->output_section->index, | |
779 | s->output_section->flags); | |
780 | continue; | |
781 | } | |
782 | ||
783 | symsize = bfd_get_symtab_upper_bound (b); | |
784 | symbols = (asymbol **) xmalloc (symsize); | |
785 | nsyms = bfd_canonicalize_symtab (b, symbols); | |
786 | ||
787 | relsize = bfd_get_reloc_upper_bound (b, s); | |
788 | relocs = (arelent **) xmalloc ((size_t) relsize); | |
789 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); | |
790 | ||
791 | for (i = 0; i < nrelocs; i++) | |
792 | { | |
793 | if (!relocs[i]->howto->pc_relative | |
c6c37250 | 794 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 795 | { |
c6c37250 DD |
796 | bfd_vma sym_vma; |
797 | struct symbol_cache_entry *sym = *relocs[i]->sym_ptr_ptr; | |
798 | sym_vma = (relocs[i]->addend | |
799 | + sym->value | |
800 | + sym->section->vma | |
801 | + sym->section->output_offset | |
802 | + sym->section->output_section->vma); | |
803 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; | |
344a211f NC |
804 | |
805 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) | |
806 | ||
807 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, | |
808 | relocs[i]->howto->rightshift) | |
252b5132 | 809 | { |
344a211f | 810 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
811 | reloc_data[total_relocs].type = 3; |
812 | total_relocs++; | |
252b5132 | 813 | break; |
344a211f NC |
814 | case BITS_AND_SHIFT (16, 0): |
815 | reloc_data[total_relocs].type = 2; | |
816 | total_relocs++; | |
817 | break; | |
818 | case BITS_AND_SHIFT (16, 16): | |
819 | reloc_data[total_relocs].type = 4; | |
820 | /* FIXME: we can't know the symbol's right value yet, | |
821 | but we probably can safely assume that CE will relocate | |
822 | us in 64k blocks, so leaving it zero is safe. */ | |
823 | reloc_data[total_relocs].extra = 0; | |
824 | total_relocs++; | |
825 | break; | |
826 | case BITS_AND_SHIFT (26, 2): | |
827 | reloc_data[total_relocs].type = 5; | |
828 | total_relocs++; | |
829 | break; | |
252b5132 RH |
830 | default: |
831 | /* xgettext:c-format */ | |
832 | einfo (_("%XError: %d-bit reloc in dll\n"), | |
833 | relocs[i]->howto->bitsize); | |
834 | break; | |
835 | } | |
836 | } | |
837 | } | |
838 | free (relocs); | |
839 | /* Warning: the allocated symbols are remembered in BFD and reused | |
840 | later, so don't free them! */ | |
841 | /* free (symbols); */ | |
842 | } | |
843 | } | |
844 | ||
845 | /* At this point, we have total_relocs relocation addresses in | |
846 | reloc_addresses, which are all suitable for the .reloc section. | |
847 | We must now create the new sections. */ | |
848 | ||
c6c37250 | 849 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
850 | |
851 | for (i = 0; i < total_relocs; i++) | |
852 | { | |
c6c37250 | 853 | unsigned long this_page = (reloc_data[i].vma >> 12); |
344a211f | 854 | |
252b5132 RH |
855 | if (this_page != sec_page) |
856 | { | |
857 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align */ | |
858 | reloc_sz += 8; | |
859 | sec_page = this_page; | |
860 | } | |
344a211f | 861 | |
252b5132 | 862 | reloc_sz += 2; |
344a211f NC |
863 | |
864 | if (reloc_data[i].type == 4) | |
865 | reloc_sz += 2; | |
252b5132 RH |
866 | } |
867 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align */ | |
868 | ||
869 | reloc_d = (unsigned char *) xmalloc (reloc_sz); | |
870 | ||
871 | sec_page = (unsigned long) (-1); | |
872 | reloc_sz = 0; | |
873 | page_ptr = (unsigned long) (-1); | |
874 | page_count = 0; | |
875 | for (i = 0; i < total_relocs; i++) | |
876 | { | |
c6c37250 | 877 | unsigned long rva = reloc_data[i].vma - image_base; |
252b5132 RH |
878 | unsigned long this_page = (rva & ~0xfff); |
879 | if (this_page != sec_page) | |
880 | { | |
881 | while (reloc_sz & 3) | |
882 | reloc_d[reloc_sz++] = 0; | |
883 | if (page_ptr != (unsigned long) (-1)) | |
884 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); | |
885 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); | |
886 | page_ptr = reloc_sz; | |
887 | reloc_sz += 8; | |
888 | sec_page = this_page; | |
889 | page_count = 0; | |
890 | } | |
c6c37250 DD |
891 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type<<12), |
892 | reloc_d + reloc_sz); | |
252b5132 | 893 | reloc_sz += 2; |
c6c37250 DD |
894 | if (reloc_data[i].type == 4) |
895 | { | |
896 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
897 | reloc_sz += 2; | |
898 | } | |
252b5132 RH |
899 | page_count++; |
900 | } | |
901 | while (reloc_sz & 3) | |
902 | reloc_d[reloc_sz++] = 0; | |
903 | if (page_ptr != (unsigned long) (-1)) | |
904 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); | |
905 | while (reloc_sz < reloc_s->_raw_size) | |
906 | reloc_d[reloc_sz++] = 0; | |
907 | } | |
908 | ||
909 | /************************************************************************ | |
910 | ||
911 | Given the exiting def_file structure, print out a .DEF file that | |
912 | corresponds to it. | |
913 | ||
914 | ************************************************************************/ | |
915 | ||
916 | static void | |
917 | quoteput (s, f, needs_quotes) | |
918 | char *s; | |
919 | FILE * f; | |
920 | int needs_quotes; | |
921 | { | |
922 | char *cp; | |
923 | for (cp = s; *cp; cp++) | |
924 | if (*cp == '\'' | |
925 | || *cp == '"' | |
926 | || *cp == '\\' | |
927 | || isspace ((unsigned char) *cp) | |
928 | || *cp == ',' | |
929 | || *cp == ';') | |
930 | needs_quotes = 1; | |
931 | if (needs_quotes) | |
932 | { | |
933 | putc ('"', f); | |
934 | while (*s) | |
935 | { | |
936 | if (*s == '"' || *s == '\\') | |
937 | putc ('\\', f); | |
938 | putc (*s, f); | |
939 | s++; | |
940 | } | |
941 | putc ('"', f); | |
942 | } | |
943 | else | |
944 | fputs (s, f); | |
945 | } | |
946 | ||
947 | void | |
948 | pe_dll_generate_def_file (pe_out_def_filename) | |
1069dd8d | 949 | const char *pe_out_def_filename; |
252b5132 RH |
950 | { |
951 | int i; | |
952 | FILE *out = fopen (pe_out_def_filename, "w"); | |
953 | if (out == NULL) | |
954 | { | |
955 | /* xgettext:c-format */ | |
956 | einfo (_("%s: Can't open output def file %s\n"), | |
957 | program_name, pe_out_def_filename); | |
958 | } | |
959 | ||
960 | if (pe_def_file) | |
961 | { | |
962 | if (pe_def_file->name) | |
963 | { | |
964 | if (pe_def_file->is_dll) | |
965 | fprintf (out, "LIBRARY "); | |
966 | else | |
967 | fprintf (out, "NAME "); | |
968 | quoteput (pe_def_file->name, out, 1); | |
969 | if (pe_data (output_bfd)->pe_opthdr.ImageBase) | |
970 | fprintf (out, " BASE=0x%lx", | |
971 | (unsigned long) pe_data (output_bfd)->pe_opthdr.ImageBase); | |
972 | fprintf (out, "\n"); | |
973 | } | |
974 | ||
975 | if (pe_def_file->description) | |
976 | { | |
977 | fprintf (out, "DESCRIPTION "); | |
978 | quoteput (pe_def_file->description, out, 1); | |
979 | fprintf (out, "\n"); | |
980 | } | |
981 | ||
982 | if (pe_def_file->version_minor != -1) | |
983 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
984 | pe_def_file->version_minor); | |
985 | else if (pe_def_file->version_major != -1) | |
986 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
987 | ||
988 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
989 | fprintf (out, "\n"); | |
990 | ||
991 | if (pe_def_file->stack_commit != -1) | |
992 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
993 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
994 | else if (pe_def_file->stack_reserve != -1) | |
995 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
996 | if (pe_def_file->heap_commit != -1) | |
997 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
998 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
999 | else if (pe_def_file->heap_reserve != -1) | |
1000 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1001 | ||
1002 | if (pe_def_file->num_section_defs > 0) | |
1003 | { | |
1004 | fprintf (out, "\nSECTIONS\n\n"); | |
1005 | for (i = 0; i < pe_def_file->num_section_defs; i++) | |
1006 | { | |
1007 | fprintf (out, " "); | |
1008 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
1009 | if (pe_def_file->section_defs[i].class) | |
1010 | { | |
1011 | fprintf (out, " CLASS "); | |
1012 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1013 | } | |
1014 | if (pe_def_file->section_defs[i].flag_read) | |
1015 | fprintf (out, " READ"); | |
1016 | if (pe_def_file->section_defs[i].flag_write) | |
1017 | fprintf (out, " WRITE"); | |
1018 | if (pe_def_file->section_defs[i].flag_execute) | |
1019 | fprintf (out, " EXECUTE"); | |
1020 | if (pe_def_file->section_defs[i].flag_shared) | |
1021 | fprintf (out, " SHARED"); | |
1022 | fprintf (out, "\n"); | |
1023 | } | |
1024 | } | |
1025 | ||
1026 | if (pe_def_file->num_exports > 0) | |
1027 | { | |
1028 | fprintf (out, "\nEXPORTS\n\n"); | |
1029 | for (i = 0; i < pe_def_file->num_exports; i++) | |
1030 | { | |
1031 | def_file_export *e = pe_def_file->exports + i; | |
1032 | fprintf (out, " "); | |
1033 | quoteput (e->name, out, 0); | |
1034 | if (e->internal_name && strcmp (e->internal_name, e->name)) | |
1035 | { | |
1036 | fprintf (out, " = "); | |
1037 | quoteput (e->internal_name, out, 0); | |
1038 | } | |
1039 | if (e->ordinal != -1) | |
1040 | fprintf (out, " @%d", e->ordinal); | |
1041 | if (e->flag_private) | |
1042 | fprintf (out, " PRIVATE"); | |
1043 | if (e->flag_constant) | |
1044 | fprintf (out, " CONSTANT"); | |
1045 | if (e->flag_noname) | |
1046 | fprintf (out, " NONAME"); | |
1047 | if (e->flag_data) | |
1048 | fprintf (out, " DATA"); | |
1049 | ||
1050 | fprintf (out, "\n"); | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | if (pe_def_file->num_imports > 0) | |
1055 | { | |
1056 | fprintf (out, "\nIMPORTS\n\n"); | |
1057 | for (i = 0; i < pe_def_file->num_imports; i++) | |
1058 | { | |
1059 | def_file_import *im = pe_def_file->imports + i; | |
1060 | fprintf (out, " "); | |
1061 | if (im->internal_name | |
1062 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1063 | { | |
1064 | quoteput (im->internal_name, out, 0); | |
1065 | fprintf (out, " = "); | |
1066 | } | |
1067 | quoteput (im->module->name, out, 0); | |
1068 | fprintf (out, "."); | |
1069 | if (im->name) | |
1070 | quoteput (im->name, out, 0); | |
1071 | else | |
1072 | fprintf (out, "%d", im->ordinal); | |
1073 | fprintf (out, "\n"); | |
1074 | } | |
1075 | } | |
1076 | } | |
1077 | else | |
1078 | fprintf (out, _("; no contents available\n")); | |
1079 | ||
1080 | if (fclose (out) == EOF) | |
1081 | { | |
1082 | /* xgettext:c-format */ | |
1083 | einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename); | |
1084 | } | |
1085 | } | |
1086 | ||
1087 | /************************************************************************ | |
1088 | ||
1089 | Generate the import library | |
1090 | ||
1091 | ************************************************************************/ | |
1092 | ||
1093 | static asymbol **symtab; | |
1094 | static int symptr; | |
1095 | static int tmp_seq; | |
1096 | static const char *dll_filename; | |
1097 | static char *dll_symname; | |
1098 | ||
1099 | #define UNDSEC (asection *) &bfd_und_section | |
1100 | ||
1101 | static asection * | |
1102 | quick_section(abfd, name, flags, align) | |
1103 | bfd *abfd; | |
1104 | const char *name; | |
1105 | int flags; | |
1106 | int align; | |
1107 | { | |
1108 | asection *sec; | |
1109 | asymbol *sym; | |
1110 | ||
1111 | sec = bfd_make_section_old_way (abfd, name); | |
1112 | bfd_set_section_flags (abfd, sec, flags | |
1113 | | SEC_ALLOC | |
1114 | | SEC_LOAD | |
1115 | | SEC_KEEP | |
1116 | ); | |
1117 | bfd_set_section_alignment (abfd, sec, align); | |
1118 | /* remember to undo this before trying to link internally! */ | |
1119 | sec->output_section = sec; | |
1120 | ||
1121 | sym = bfd_make_empty_symbol (abfd); | |
1122 | symtab[symptr++] = sym; | |
1123 | sym->name = sec->name; | |
1124 | sym->section = sec; | |
1125 | sym->flags = BSF_LOCAL; | |
1126 | sym->value = 0; | |
1127 | ||
1128 | return sec; | |
1129 | } | |
1130 | ||
1131 | static void | |
1132 | quick_symbol (abfd, n1, n2, n3, sec, flags, addr) | |
1133 | bfd *abfd; | |
1134 | char *n1; | |
1135 | char *n2; | |
1136 | char *n3; | |
1137 | asection *sec; | |
1138 | int flags; | |
1139 | int addr; | |
1140 | { | |
1141 | asymbol *sym; | |
1142 | char *name = (char *) xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); | |
1143 | strcpy (name, n1); | |
1144 | strcat (name, n2); | |
1145 | strcat (name, n3); | |
1146 | sym = bfd_make_empty_symbol (abfd); | |
1147 | sym->name = name; | |
1148 | sym->section = sec; | |
1149 | sym->flags = flags; | |
1150 | sym->value = addr; | |
1151 | symtab[symptr++] = sym; | |
1152 | } | |
1153 | ||
1154 | static arelent *reltab = 0; | |
1155 | static int relcount = 0, relsize = 0; | |
1156 | ||
1157 | static void | |
1158 | quick_reloc (abfd, address, which_howto, symidx) | |
1159 | bfd *abfd; | |
1160 | int address; | |
1161 | int which_howto; | |
1162 | int symidx; | |
1163 | { | |
1164 | if (relcount >= (relsize-1)) | |
1165 | { | |
1166 | relsize += 10; | |
1167 | if (reltab) | |
1168 | reltab = (arelent *) xrealloc (reltab, relsize * sizeof (arelent)); | |
1169 | else | |
1170 | reltab = (arelent *) xmalloc (relsize * sizeof (arelent)); | |
1171 | } | |
1172 | reltab[relcount].address = address; | |
1173 | reltab[relcount].addend = 0; | |
1174 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
1175 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
1176 | relcount++; | |
1177 | } | |
1178 | ||
1179 | static void | |
1180 | save_relocs (asection *sec) | |
1181 | { | |
1182 | int i; | |
1183 | sec->relocation = reltab; | |
1184 | sec->reloc_count = relcount; | |
1185 | sec->orelocation = (arelent **) xmalloc ((relcount+1) * sizeof (arelent *)); | |
1186 | for (i=0; i<relcount; i++) | |
1187 | sec->orelocation[i] = sec->relocation + i; | |
1188 | sec->orelocation[relcount] = 0; | |
1189 | sec->flags |= SEC_RELOC; | |
1190 | reltab = 0; | |
1191 | relcount = relsize = 0; | |
1192 | } | |
1193 | ||
1194 | /* | |
1195 | * .section .idata$2 | |
1196 | * .global __head_my_dll | |
1197 | * __head_my_dll: | |
1198 | * .rva hname | |
1199 | * .long 0 | |
1200 | * .long 0 | |
1201 | * .rva __my_dll_iname | |
1202 | * .rva fthunk | |
1203 | * | |
1204 | * .section .idata$5 | |
1205 | * .long 0 | |
1206 | * fthunk: | |
1207 | * | |
1208 | * .section .idata$4 | |
1209 | * .long 0 | |
1210 | * hname: | |
1211 | */ | |
1212 | ||
1213 | static bfd * | |
1214 | make_head (parent) | |
1215 | bfd *parent; | |
1216 | { | |
1217 | asection *id2, *id5, *id4; | |
1218 | unsigned char *d2, *d5, *d4; | |
1219 | char *oname; | |
1220 | bfd *abfd; | |
1221 | ||
1222 | oname = (char *) xmalloc (20); | |
1223 | sprintf (oname, "d%06d.o", tmp_seq); | |
1224 | tmp_seq++; | |
1225 | ||
1226 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1227 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1228 | bfd_make_writable (abfd); |
1229 | ||
1230 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1231 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1232 | |
1233 | symptr = 0; | |
1234 | symtab = (asymbol **) xmalloc (6 * sizeof (asymbol *)); | |
1235 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); | |
1236 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1237 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
c6c37250 DD |
1238 | quick_symbol (abfd, U("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
1239 | quick_symbol (abfd, U(""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
1240 | ||
1241 | /* OK, pay attention here. I got confused myself looking back at | |
1242 | it. We create a four-byte section to mark the beginning of the | |
1243 | list, and we include an offset of 4 in the section, so that the | |
1244 | pointer to the list points to the *end* of this section, which is | |
1245 | the start of the list of sections from other objects. */ | |
252b5132 RH |
1246 | |
1247 | bfd_set_section_size (abfd, id2, 20); | |
1248 | d2 = (unsigned char *) xmalloc (20); | |
1249 | id2->contents = d2; | |
1250 | memset (d2, 0, 20); | |
1251 | d2[0] = d2[16] = 4; /* reloc addend */ | |
1252 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); | |
1253 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
1254 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
1255 | save_relocs (id2); | |
1256 | ||
1257 | bfd_set_section_size (abfd, id5, 4); | |
1258 | d5 = (unsigned char *) xmalloc (4); | |
1259 | id5->contents = d5; | |
1260 | memset (d5, 0, 4); | |
1261 | ||
1262 | bfd_set_section_size (abfd, id4, 4); | |
1263 | d4 = (unsigned char *) xmalloc (4); | |
1264 | id4->contents = d4; | |
1265 | memset (d4, 0, 4); | |
1266 | ||
1267 | bfd_set_symtab (abfd, symtab, symptr); | |
1268 | ||
1269 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
1270 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1271 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1272 | ||
1273 | bfd_make_readable (abfd); | |
1274 | return abfd; | |
1275 | } | |
1276 | ||
1277 | /* | |
1278 | * .section .idata$4 | |
1279 | * .long 0 | |
1280 | * .section .idata$5 | |
1281 | * .long 0 | |
1282 | * .section idata$7 | |
1283 | * .global __my_dll_iname | |
1284 | *__my_dll_iname: | |
1285 | * .asciz "my.dll" | |
1286 | */ | |
1287 | ||
1288 | static bfd * | |
1289 | make_tail (parent) | |
1290 | bfd *parent; | |
1291 | { | |
1292 | asection *id4, *id5, *id7; | |
1293 | unsigned char *d4, *d5, *d7; | |
1294 | int len; | |
1295 | char *oname; | |
1296 | bfd *abfd; | |
1297 | ||
1298 | oname = (char *) xmalloc (20); | |
1299 | sprintf (oname, "d%06d.o", tmp_seq); | |
1300 | tmp_seq++; | |
1301 | ||
1302 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1303 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1304 | bfd_make_writable (abfd); |
1305 | ||
1306 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1307 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1308 | |
1309 | symptr = 0; | |
1310 | symtab = (asymbol **) xmalloc (5 * sizeof (asymbol *)); | |
1311 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
1312 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1313 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
c6c37250 | 1314 | quick_symbol (abfd, U(""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 RH |
1315 | |
1316 | bfd_set_section_size (abfd, id4, 4); | |
1317 | d4 = (unsigned char *) xmalloc (4); | |
1318 | id4->contents = d4; | |
1319 | memset (d4, 0, 4); | |
1320 | ||
1321 | bfd_set_section_size (abfd, id5, 4); | |
1322 | d5 = (unsigned char *) xmalloc (4); | |
1323 | id5->contents = d5; | |
1324 | memset (d5, 0, 4); | |
1325 | ||
1326 | len = strlen (dll_filename)+1; | |
1327 | if (len & 1) | |
1328 | len ++; | |
1329 | bfd_set_section_size (abfd, id7, len); | |
1330 | d7 = (unsigned char *) xmalloc (len); | |
1331 | id7->contents = d7; | |
1332 | strcpy (d7, dll_filename); | |
1333 | ||
1334 | bfd_set_symtab (abfd, symtab, symptr); | |
1335 | ||
1336 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1337 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1338 | bfd_set_section_contents (abfd, id7, d7, 0, len); | |
1339 | ||
1340 | bfd_make_readable (abfd); | |
1341 | return abfd; | |
1342 | } | |
1343 | ||
1344 | /* | |
1345 | * .text | |
1346 | * .global _function | |
1347 | * .global ___imp_function | |
1348 | * .global __imp__function | |
1349 | *_function: | |
1350 | * jmp *__imp__function: | |
1351 | * | |
1352 | * .section idata$7 | |
1353 | * .long __head_my_dll | |
1354 | * | |
1355 | * .section .idata$5 | |
1356 | *___imp_function: | |
1357 | *__imp__function: | |
1358 | *iat? | |
1359 | * .section .idata$4 | |
1360 | *iat? | |
1361 | * .section .idata$6 | |
1362 | *ID<ordinal>: | |
1363 | * .short <hint> | |
1364 | * .asciz "function" xlate? (add underscore, kill at) | |
1365 | */ | |
1366 | ||
1367 | static unsigned char jmp_ix86_bytes[] = { | |
1368 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 | |
1369 | }; | |
1370 | ||
344a211f NC |
1371 | /* |
1372 | *_function: | |
1373 | * mov.l ip+8,r0 | |
1374 | * mov.l @r0,r0 | |
1375 | * jmp @r0 | |
1376 | * nop | |
1377 | * .dw __imp_function | |
1378 | */ | |
1379 | ||
1380 | static unsigned char jmp_sh_bytes[] = { | |
1381 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 | |
1382 | }; | |
1383 | ||
1384 | /* | |
1385 | *_function: | |
1386 | * lui $t0,<high:__imp_function> | |
1387 | * lw $t0,<low:__imp_function> | |
1388 | * jr $t0 | |
1389 | * nop | |
1390 | */ | |
1391 | ||
1392 | static unsigned char jmp_mips_bytes[] = { | |
1393 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, | |
1394 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
1395 | }; | |
252b5132 RH |
1396 | |
1397 | static bfd * | |
1398 | make_one (exp, parent) | |
1399 | def_file_export *exp; | |
1400 | bfd *parent; | |
1401 | { | |
1402 | asection *tx, *id7, *id5, *id4, *id6; | |
f0c87f88 | 1403 | unsigned char *td, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
1404 | int len; |
1405 | char *oname; | |
1406 | bfd *abfd; | |
f0c87f88 NC |
1407 | unsigned char *jmp_bytes = NULL; |
1408 | int jmp_byte_count = 0; | |
c6c37250 DD |
1409 | |
1410 | switch (pe_details->pe_arch) | |
1411 | { | |
1412 | case PE_ARCH_i386: | |
1413 | jmp_bytes = jmp_ix86_bytes; | |
1414 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
1415 | break; | |
344a211f NC |
1416 | case PE_ARCH_sh: |
1417 | jmp_bytes = jmp_sh_bytes; | |
1418 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
1419 | break; | |
1420 | case PE_ARCH_mips: | |
1421 | jmp_bytes = jmp_mips_bytes; | |
1422 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
1423 | break; | |
c6c37250 | 1424 | } |
252b5132 RH |
1425 | |
1426 | oname = (char *) xmalloc (20); | |
1427 | sprintf (oname, "d%06d.o", tmp_seq); | |
1428 | tmp_seq++; | |
1429 | ||
1430 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1431 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1432 | bfd_make_writable (abfd); |
1433 | ||
1434 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1435 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1436 | |
1437 | symptr = 0; | |
1438 | symtab = (asymbol **) xmalloc (10 * sizeof (asymbol *)); | |
1439 | tx = quick_section (abfd, ".text", SEC_CODE|SEC_HAS_CONTENTS, 2); | |
1440 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
1441 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1442 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
1443 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
7c9e78f8 DD |
1444 | if (! exp->flag_data) |
1445 | quick_symbol (abfd, U(""), exp->internal_name, "", tx, BSF_GLOBAL, 0); | |
c6c37250 | 1446 | quick_symbol (abfd, U("_head_"), dll_symname, "", UNDSEC, BSF_GLOBAL, 0); |
5b4cf3f4 | 1447 | quick_symbol (abfd, U("_imp__"), exp->internal_name, "", id5, BSF_GLOBAL, 0); |
870df5dc NC |
1448 | if (pe_dll_compat_implib) |
1449 | quick_symbol (abfd, U("__imp_"), exp->internal_name, "", | |
1450 | id5, BSF_GLOBAL, 0); | |
252b5132 | 1451 | |
c6c37250 DD |
1452 | bfd_set_section_size (abfd, tx, jmp_byte_count); |
1453 | td = (unsigned char *) xmalloc (jmp_byte_count); | |
252b5132 | 1454 | tx->contents = td; |
c6c37250 DD |
1455 | memcpy (td, jmp_bytes, jmp_byte_count); |
1456 | switch (pe_details->pe_arch) | |
1457 | { | |
1458 | case PE_ARCH_i386: | |
1459 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); | |
1460 | break; | |
344a211f NC |
1461 | case PE_ARCH_sh: |
1462 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
1463 | break; | |
1464 | case PE_ARCH_mips: | |
1465 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
1466 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
1467 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
1468 | break; | |
c6c37250 | 1469 | } |
252b5132 RH |
1470 | save_relocs (tx); |
1471 | ||
1472 | bfd_set_section_size (abfd, id7, 4); | |
1473 | d7 = (unsigned char *) xmalloc (4); | |
1474 | id7->contents = d7; | |
1475 | memset (d7, 0, 4); | |
1476 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 6); | |
1477 | save_relocs (id7); | |
1478 | ||
1479 | bfd_set_section_size (abfd, id5, 4); | |
1480 | d5 = (unsigned char *) xmalloc (4); | |
1481 | id5->contents = d5; | |
1482 | memset (d5, 0, 4); | |
1483 | if (exp->flag_noname) | |
1484 | { | |
1485 | d5[0] = exp->ordinal; | |
1486 | d5[1] = exp->ordinal >> 8; | |
1487 | d5[3] = 0x80; | |
1488 | } | |
1489 | else | |
1490 | { | |
1491 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
1492 | save_relocs (id5); | |
1493 | } | |
1494 | ||
1495 | bfd_set_section_size (abfd, id4, 4); | |
1496 | d4 = (unsigned char *) xmalloc (4); | |
1497 | id4->contents = d4; | |
1498 | memset (d4, 0, 4); | |
1499 | if (exp->flag_noname) | |
1500 | { | |
1501 | d5[0] = exp->ordinal; | |
1502 | d5[1] = exp->ordinal >> 8; | |
1503 | d5[3] = 0x80; | |
1504 | } | |
1505 | else | |
1506 | { | |
1507 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
1508 | save_relocs (id4); | |
1509 | } | |
1510 | ||
1511 | if (exp->flag_noname) | |
1512 | { | |
1513 | len = 0; | |
1514 | bfd_set_section_size (abfd, id6, 0); | |
1515 | } | |
1516 | else | |
1517 | { | |
1518 | len = strlen (exp->name) + 3; | |
1519 | if (len & 1) | |
1520 | len++; | |
1521 | bfd_set_section_size (abfd, id6, len); | |
1522 | d6 = (unsigned char *) xmalloc (len); | |
1523 | id6->contents = d6; | |
1524 | memset (d6, 0, len); | |
1525 | d6[0] = exp->hint & 0xff; | |
1526 | d6[1] = exp->hint >> 8; | |
1527 | strcpy (d6+2, exp->name); | |
1528 | } | |
1529 | ||
1530 | bfd_set_symtab (abfd, symtab, symptr); | |
1531 | ||
c6c37250 | 1532 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); |
252b5132 RH |
1533 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
1534 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1535 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1536 | if (!exp->flag_noname) | |
1537 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
1538 | ||
1539 | bfd_make_readable (abfd); | |
1540 | return abfd; | |
1541 | } | |
1542 | ||
1543 | void | |
1544 | pe_dll_generate_implib (def, impfilename) | |
1545 | def_file *def; | |
1069dd8d | 1546 | const char *impfilename; |
252b5132 RH |
1547 | { |
1548 | int i; | |
1549 | bfd *ar_head; | |
1550 | bfd *ar_tail; | |
1551 | bfd *outarch; | |
1552 | bfd *head = 0; | |
1553 | ||
5aaace27 | 1554 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 RH |
1555 | dll_symname = xstrdup (dll_filename); |
1556 | for (i=0; dll_symname[i]; i++) | |
1557 | if (!isalnum ((unsigned char) dll_symname[i])) | |
1558 | dll_symname[i] = '_'; | |
1559 | ||
1560 | unlink (impfilename); | |
1561 | ||
1562 | outarch = bfd_openw (impfilename, 0); | |
1563 | ||
1564 | if (!outarch) | |
1565 | { | |
1566 | /* xgettext:c-format */ | |
1567 | einfo (_("%XCan't open .lib file: %s\n"), impfilename); | |
1568 | return; | |
1569 | } | |
1570 | ||
1571 | /* xgettext:c-format */ | |
1572 | einfo (_("Creating library file: %s\n"), impfilename); | |
1573 | ||
1574 | bfd_set_format (outarch, bfd_archive); | |
1575 | outarch->has_armap = 1; | |
1576 | ||
1577 | /* Work out a reasonable size of things to put onto one line. */ | |
1578 | ||
1579 | ar_head = make_head (outarch); | |
252b5132 RH |
1580 | |
1581 | for (i = 0; i<def->num_exports; i++) | |
1582 | { | |
1583 | /* The import library doesn't know about the internal name */ | |
1584 | char *internal = def->exports[i].internal_name; | |
1585 | bfd *n; | |
1586 | def->exports[i].internal_name = def->exports[i].name; | |
1587 | n = make_one (def->exports+i, outarch); | |
1588 | n->next = head; | |
1589 | head = n; | |
1590 | def->exports[i].internal_name = internal; | |
1591 | } | |
1592 | ||
c6c37250 DD |
1593 | ar_tail = make_tail (outarch); |
1594 | ||
1595 | if (ar_head == NULL || ar_tail == NULL) | |
1596 | return; | |
1597 | ||
252b5132 RH |
1598 | /* Now stick them all into the archive */ |
1599 | ||
1600 | ar_head->next = head; | |
1601 | ar_tail->next = ar_head; | |
1602 | head = ar_tail; | |
1603 | ||
1604 | if (! bfd_set_archive_head (outarch, head)) | |
1605 | einfo ("%Xbfd_set_archive_head: %s\n", bfd_errmsg (bfd_get_error ())); | |
1606 | ||
1607 | if (! bfd_close (outarch)) | |
1608 | einfo ("%Xbfd_close %s: %s\n", impfilename, bfd_errmsg (bfd_get_error ())); | |
1609 | ||
1610 | while (head != NULL) | |
1611 | { | |
1612 | bfd *n = head->next; | |
1613 | bfd_close (head); | |
1614 | head = n; | |
1615 | } | |
1616 | } | |
1617 | ||
1618 | static void | |
1619 | add_bfd_to_link (abfd, name, link_info) | |
1620 | bfd *abfd; | |
1621 | char *name; | |
1622 | struct bfd_link_info *link_info; | |
1623 | { | |
1624 | lang_input_statement_type *fake_file; | |
1625 | fake_file = lang_add_input_file (name, | |
1626 | lang_input_file_is_fake_enum, | |
1627 | NULL); | |
1628 | fake_file->the_bfd = abfd; | |
1629 | ldlang_add_file (fake_file); | |
1630 | if (!bfd_link_add_symbols (abfd, link_info)) | |
1631 | einfo ("%Xaddsym %s: %s\n", name, bfd_errmsg (bfd_get_error ())); | |
1632 | } | |
1633 | ||
1634 | void | |
1635 | pe_process_import_defs (output_bfd, link_info) | |
1636 | bfd *output_bfd; | |
1637 | struct bfd_link_info *link_info; | |
1638 | { | |
1639 | def_file_module *module; | |
c6c37250 | 1640 | pe_dll_id_target(bfd_get_target (output_bfd)); |
252b5132 RH |
1641 | |
1642 | if (!pe_def_file) | |
1643 | return; | |
1644 | ||
1645 | for (module = pe_def_file->modules; module; module = module->next) | |
1646 | { | |
1647 | int i, do_this_dll; | |
1648 | ||
1649 | dll_filename = module->name; | |
1650 | dll_symname = xstrdup (module->name); | |
1651 | for (i=0; dll_symname[i]; i++) | |
1652 | if (!isalnum (dll_symname[i])) | |
1653 | dll_symname[i] = '_'; | |
1654 | ||
1655 | do_this_dll = 0; | |
1656 | ||
1657 | for (i=0; i<pe_def_file->num_imports; i++) | |
1658 | if (pe_def_file->imports[i].module == module) | |
1659 | { | |
1660 | def_file_export exp; | |
1661 | struct bfd_link_hash_entry *blhe; | |
1662 | ||
1663 | /* see if we need this import */ | |
874c8c99 | 1664 | char *name = (char *) xmalloc (strlen (pe_def_file->imports[i].internal_name) + 2 + 6); |
c6c37250 | 1665 | sprintf (name, "%s%s", U(""), pe_def_file->imports[i].internal_name); |
252b5132 RH |
1666 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
1667 | false, false, false); | |
874c8c99 DD |
1668 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) |
1669 | { | |
1670 | sprintf (name, "%s%s", U("_imp__"), | |
1671 | pe_def_file->imports[i].internal_name); | |
1672 | blhe = bfd_link_hash_lookup (link_info->hash, name, | |
1673 | false, false, false); | |
1674 | } | |
252b5132 RH |
1675 | free (name); |
1676 | if (blhe && blhe->type == bfd_link_hash_undefined) | |
1677 | { | |
1678 | bfd *one; | |
1679 | /* we do */ | |
1680 | if (!do_this_dll) | |
1681 | { | |
1682 | bfd *ar_head = make_head (output_bfd); | |
1683 | add_bfd_to_link (ar_head, ar_head->filename, link_info); | |
1684 | do_this_dll = 1; | |
1685 | } | |
1686 | exp.internal_name = pe_def_file->imports[i].internal_name; | |
1687 | exp.name = pe_def_file->imports[i].name; | |
1688 | exp.ordinal = pe_def_file->imports[i].ordinal; | |
1689 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
1690 | exp.flag_private = 0; | |
1691 | exp.flag_constant = 0; | |
1692 | exp.flag_data = 0; | |
1693 | exp.flag_noname = exp.name ? 0 : 1; | |
1694 | one = make_one (&exp, output_bfd); | |
1695 | add_bfd_to_link (one, one->filename, link_info); | |
1696 | } | |
1697 | } | |
1698 | if (do_this_dll) | |
1699 | { | |
1700 | bfd *ar_tail = make_tail (output_bfd); | |
1701 | add_bfd_to_link (ar_tail, ar_tail->filename, link_info); | |
1702 | } | |
1703 | ||
1704 | free (dll_symname); | |
1705 | } | |
1706 | } | |
1707 | ||
1708 | /************************************************************************ | |
1709 | ||
1710 | We were handed a *.DLL file. Parse it and turn it into a set of | |
1711 | IMPORTS directives in the def file. Return true if the file was | |
1712 | handled, false if not. | |
1713 | ||
1714 | ************************************************************************/ | |
1715 | ||
1716 | static unsigned int | |
1717 | pe_get16 (abfd, where) | |
1718 | bfd *abfd; | |
1719 | int where; | |
1720 | { | |
1721 | unsigned char b[2]; | |
1722 | bfd_seek (abfd, where, SEEK_SET); | |
1723 | bfd_read (b, 1, 2, abfd); | |
1724 | return b[0] + (b[1]<<8); | |
1725 | } | |
1726 | ||
1727 | static unsigned int | |
1728 | pe_get32 (abfd, where) | |
1729 | bfd *abfd; | |
1730 | int where; | |
1731 | { | |
1732 | unsigned char b[4]; | |
1733 | bfd_seek (abfd, where, SEEK_SET); | |
1734 | bfd_read (b, 1, 4, abfd); | |
1735 | return b[0] + (b[1]<<8) + (b[2]<<16) + (b[3]<<24); | |
1736 | } | |
1737 | ||
1738 | #if 0 /* This is not currently used. */ | |
1739 | ||
1740 | static unsigned int | |
1741 | pe_as16 (ptr) | |
1742 | void *ptr; | |
1743 | { | |
1744 | unsigned char *b = ptr; | |
1745 | return b[0] + (b[1]<<8); | |
1746 | } | |
1747 | ||
1748 | #endif | |
1749 | ||
1750 | static unsigned int | |
1751 | pe_as32 (ptr) | |
1752 | void *ptr; | |
1753 | { | |
1754 | unsigned char *b = ptr; | |
1755 | return b[0] + (b[1]<<8) + (b[2]<<16) + (b[3]<<24); | |
1756 | } | |
1757 | ||
1758 | boolean | |
1759 | pe_implied_import_dll (filename) | |
1069dd8d | 1760 | const char *filename; |
252b5132 RH |
1761 | { |
1762 | bfd *dll; | |
1763 | unsigned long pe_header_offset, opthdr_ofs, num_entries, i; | |
1764 | unsigned long export_rva, export_size, nsections, secptr, expptr; | |
1765 | unsigned char *expdata, *erva; | |
1766 | unsigned long name_rvas, ordinals, nexp, ordbase; | |
1069dd8d | 1767 | const char *dll_name; |
252b5132 RH |
1768 | |
1769 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
1770 | the middle of the .rdata section. */ | |
1771 | ||
c6c37250 | 1772 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
1773 | if (!dll) |
1774 | { | |
1775 | einfo ("%Xopen %s: %s\n", filename, bfd_errmsg (bfd_get_error ())); | |
1776 | return false; | |
1777 | } | |
1778 | /* PEI dlls seem to be bfd_objects */ | |
1779 | if (!bfd_check_format (dll, bfd_object)) | |
1780 | { | |
1781 | einfo ("%X%s: this doesn't appear to be a DLL\n", filename); | |
1782 | return false; | |
1783 | } | |
1784 | ||
1785 | dll_name = filename; | |
1786 | for (i=0; filename[i]; i++) | |
1787 | if (filename[i] == '/' || filename[i] == '\\' || filename[i] == ':') | |
1788 | dll_name = filename + i + 1; | |
1789 | ||
1790 | pe_header_offset = pe_get32 (dll, 0x3c); | |
1791 | opthdr_ofs = pe_header_offset + 4 + 20; | |
1792 | num_entries = pe_get32 (dll, opthdr_ofs + 92); | |
1793 | if (num_entries < 1) /* no exports */ | |
1794 | return false; | |
1795 | export_rva = pe_get32 (dll, opthdr_ofs + 96); | |
1796 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
1797 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); | |
1798 | secptr = (pe_header_offset + 4 + 20 + | |
1799 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
1800 | expptr = 0; | |
1801 | for (i=0; i<nsections; i++) | |
1802 | { | |
1803 | char sname[8]; | |
1804 | unsigned long secptr1 = secptr + 40 * i; | |
1805 | unsigned long vaddr = pe_get32 (dll, secptr1 + 12); | |
1806 | unsigned long vsize = pe_get32 (dll, secptr1 + 16); | |
1807 | unsigned long fptr = pe_get32 (dll, secptr1 + 20); | |
1808 | bfd_seek(dll, secptr1, SEEK_SET); | |
1809 | bfd_read(sname, 1, 8, dll); | |
1810 | if (vaddr <= export_rva && vaddr+vsize > export_rva) | |
1811 | { | |
1812 | expptr = fptr + (export_rva - vaddr); | |
1813 | if (export_rva + export_size > vaddr + vsize) | |
1814 | export_size = vsize - (export_rva - vaddr); | |
1815 | break; | |
1816 | } | |
1817 | } | |
1818 | ||
1819 | expdata = (unsigned char *) xmalloc (export_size); | |
1820 | bfd_seek (dll, expptr, SEEK_SET); | |
1821 | bfd_read (expdata, 1, export_size, dll); | |
1822 | erva = expdata - export_rva; | |
1823 | ||
1824 | if (pe_def_file == 0) | |
1825 | pe_def_file = def_file_empty(); | |
1826 | ||
1827 | nexp = pe_as32 (expdata+24); | |
1828 | name_rvas = pe_as32 (expdata+32); | |
1829 | ordinals = pe_as32 (expdata+36); | |
1830 | ordbase = pe_as32 (expdata+16); | |
1831 | for (i=0; i<nexp; i++) | |
1832 | { | |
1833 | unsigned long name_rva = pe_as32 (erva+name_rvas+i*4); | |
1834 | def_file_import *imp; | |
1835 | imp = def_file_add_import (pe_def_file, erva+name_rva, dll_name, | |
1836 | i, 0); | |
1837 | } | |
1838 | ||
1839 | return true; | |
1840 | } | |
1841 | ||
1842 | /************************************************************************ | |
1843 | ||
1844 | These are the main functions, called from the emulation. The first | |
1845 | is called after the bfds are read, so we can guess at how much space | |
1846 | we need. The second is called after everything is placed, so we | |
1847 | can put the right values in place. | |
1848 | ||
1849 | ************************************************************************/ | |
1850 | ||
1851 | void | |
1852 | pe_dll_build_sections (abfd, info) | |
1853 | bfd *abfd; | |
1854 | struct bfd_link_info *info; | |
1855 | { | |
c6c37250 | 1856 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
1857 | process_def_file (abfd, info); |
1858 | ||
1859 | generate_edata (abfd, info); | |
c6c37250 DD |
1860 | build_filler_bfd (1); |
1861 | } | |
1862 | ||
1863 | void | |
1864 | pe_exe_build_sections (abfd, info) | |
1865 | bfd *abfd; | |
1069dd8d | 1866 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
c6c37250 DD |
1867 | { |
1868 | pe_dll_id_target (bfd_get_target (abfd)); | |
1869 | build_filler_bfd (0); | |
252b5132 RH |
1870 | } |
1871 | ||
1872 | void | |
1873 | pe_dll_fill_sections (abfd, info) | |
1874 | bfd *abfd; | |
1875 | struct bfd_link_info *info; | |
1876 | { | |
c6c37250 | 1877 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
1878 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
1879 | ||
1880 | generate_reloc (abfd, info); | |
1881 | if (reloc_sz > 0) | |
1882 | { | |
1883 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
1884 | ||
1885 | /* Resize the sections. */ | |
1886 | lang_size_sections (stat_ptr->head, abs_output_section, | |
1887 | &stat_ptr->head, 0, (bfd_vma) 0, false); | |
1888 | ||
1889 | /* Redo special stuff. */ | |
1890 | ldemul_after_allocation (); | |
1891 | ||
1892 | /* Do the assignments again. */ | |
1893 | lang_do_assignments (stat_ptr->head, | |
1894 | abs_output_section, | |
1895 | (fill_type) 0, (bfd_vma) 0); | |
1896 | } | |
1897 | ||
1898 | fill_edata (abfd, info); | |
1899 | ||
1900 | pe_data (abfd)->dll = 1; | |
1901 | ||
1902 | edata_s->contents = edata_d; | |
1903 | reloc_s->contents = reloc_d; | |
1904 | } | |
c6c37250 DD |
1905 | |
1906 | void | |
1907 | pe_exe_fill_sections (abfd, info) | |
1908 | bfd *abfd; | |
1909 | struct bfd_link_info *info; | |
1910 | { | |
1911 | pe_dll_id_target (bfd_get_target (abfd)); | |
1912 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; | |
1913 | ||
1914 | generate_reloc (abfd, info); | |
1915 | if (reloc_sz > 0) | |
1916 | { | |
1917 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
1918 | ||
1919 | /* Resize the sections. */ | |
1920 | lang_size_sections (stat_ptr->head, abs_output_section, | |
1921 | &stat_ptr->head, 0, (bfd_vma) 0, false); | |
1922 | ||
1923 | /* Redo special stuff. */ | |
1924 | ldemul_after_allocation (); | |
1925 | ||
1926 | /* Do the assignments again. */ | |
1927 | lang_do_assignments (stat_ptr->head, | |
1928 | abs_output_section, | |
1929 | (fill_type) 0, (bfd_vma) 0); | |
1930 | } | |
1931 | reloc_s->contents = reloc_d; | |
1932 | } |