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 | { | |
45b1f63c DD |
305 | /* We should export symbols which are either global or not |
306 | anything at all (.bss data is the latter) */ | |
307 | if ((symbols[j]->flags & BSF_GLOBAL) | |
308 | || (symbols[j]->flags == BSF_NO_FLAGS)) | |
252b5132 RH |
309 | { |
310 | const char *sn = symbols[j]->name; | |
311 | if (*sn == '_') | |
312 | sn++; | |
313 | if (auto_export (pe_def_file, sn)) | |
314 | def_file_add_export (pe_def_file, sn, 0, -1); | |
315 | } | |
316 | } | |
317 | } | |
318 | } | |
319 | ||
320 | #undef NE | |
321 | #define NE pe_def_file->num_exports | |
322 | ||
323 | /* Canonicalize the export list */ | |
324 | ||
325 | if (pe_dll_kill_ats) | |
326 | { | |
327 | for (i = 0; i < NE; i++) | |
328 | { | |
329 | if (strchr (pe_def_file->exports[i].name, '@')) | |
330 | { | |
331 | /* This will preserve internal_name, which may have been pointing | |
332 | to the same memory as name, or might not have */ | |
333 | char *tmp = xstrdup (pe_def_file->exports[i].name); | |
334 | *(strchr (tmp, '@')) = 0; | |
335 | pe_def_file->exports[i].name = tmp; | |
336 | } | |
337 | } | |
338 | } | |
339 | ||
340 | if (pe_dll_stdcall_aliases) | |
341 | { | |
342 | for (i = 0; i < NE; i++) | |
343 | { | |
344 | if (strchr (pe_def_file->exports[i].name, '@')) | |
345 | { | |
346 | char *tmp = xstrdup (pe_def_file->exports[i].name); | |
347 | *(strchr (tmp, '@')) = 0; | |
348 | if (auto_export (pe_def_file, tmp)) | |
349 | def_file_add_export (pe_def_file, tmp, | |
350 | pe_def_file->exports[i].internal_name, -1); | |
351 | else | |
352 | free (tmp); | |
353 | } | |
354 | } | |
355 | } | |
356 | ||
357 | e = pe_def_file->exports; /* convenience, but watch out for it changing */ | |
358 | ||
359 | exported_symbol_offsets = (bfd_vma *) xmalloc (NE * sizeof (bfd_vma)); | |
360 | exported_symbol_sections = (struct sec **) xmalloc (NE * sizeof (struct sec *)); | |
361 | ||
362 | memset (exported_symbol_sections, 0, NE * sizeof (struct sec *)); | |
363 | max_ordinal = 0; | |
364 | min_ordinal = 65536; | |
365 | count_exported = 0; | |
366 | count_exported_byname = 0; | |
367 | count_with_ordinals = 0; | |
368 | ||
369 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), pe_export_sort); | |
370 | for (i = 0, j = 0; i < NE; i++) | |
371 | { | |
372 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
373 | { | |
870df5dc | 374 | /* This is a duplicate. */ |
252b5132 RH |
375 | if (e[j - 1].ordinal != -1 |
376 | && e[i].ordinal != -1 | |
377 | && e[j - 1].ordinal != e[i].ordinal) | |
378 | { | |
870df5dc NC |
379 | if (pe_dll_warn_dup_exports) |
380 | /* xgettext:c-format */ | |
381 | einfo (_("%XError, duplicate EXPORT with oridinals: %s (%d vs %d)\n"), | |
382 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); | |
252b5132 RH |
383 | } |
384 | else | |
385 | { | |
870df5dc NC |
386 | if (pe_dll_warn_dup_exports) |
387 | /* xgettext:c-format */ | |
388 | einfo (_("Warning, duplicate EXPORT: %s\n"), | |
389 | e[j - 1].name); | |
252b5132 RH |
390 | } |
391 | if (e[i].ordinal) | |
392 | e[j - 1].ordinal = e[i].ordinal; | |
393 | e[j - 1].flag_private |= e[i].flag_private; | |
394 | e[j - 1].flag_constant |= e[i].flag_constant; | |
395 | e[j - 1].flag_noname |= e[i].flag_noname; | |
396 | e[j - 1].flag_data |= e[i].flag_data; | |
397 | } | |
398 | else | |
399 | { | |
400 | if (i != j) | |
401 | e[j] = e[i]; | |
402 | j++; | |
403 | } | |
404 | } | |
405 | pe_def_file->num_exports = j; /* == NE */ | |
406 | ||
407 | for (i = 0; i < NE; i++) | |
408 | { | |
409 | char *name = (char *) xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); | |
c6c37250 DD |
410 | if (pe_details->underscored) |
411 | { | |
412 | *name = '_'; | |
413 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
414 | } | |
415 | else | |
416 | strcpy (name, pe_def_file->exports[i].internal_name); | |
252b5132 RH |
417 | |
418 | blhe = bfd_link_hash_lookup (info->hash, | |
419 | name, | |
420 | false, false, true); | |
421 | ||
8a5b676c DD |
422 | if (blhe |
423 | && (blhe->type == bfd_link_hash_defined | |
424 | || (blhe->type == bfd_link_hash_common))) | |
252b5132 RH |
425 | { |
426 | count_exported++; | |
427 | if (!pe_def_file->exports[i].flag_noname) | |
428 | count_exported_byname++; | |
8a5b676c DD |
429 | |
430 | /* Only fill in the sections. The actual offsets are computed | |
431 | in fill_exported_offsets() after common symbols are laid | |
432 | out. */ | |
433 | if (blhe->type == bfd_link_hash_defined) | |
434 | exported_symbol_sections[i] = blhe->u.def.section; | |
435 | else | |
436 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
344a211f | 437 | |
252b5132 RH |
438 | if (pe_def_file->exports[i].ordinal != -1) |
439 | { | |
440 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
441 | max_ordinal = pe_def_file->exports[i].ordinal; | |
442 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
443 | min_ordinal = pe_def_file->exports[i].ordinal; | |
444 | count_with_ordinals++; | |
445 | } | |
446 | } | |
447 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
448 | { | |
449 | /* xgettext:c-format */ | |
450 | einfo (_("%XCannot export %s: symbol not defined\n"), | |
451 | pe_def_file->exports[i].internal_name); | |
452 | } | |
453 | else if (blhe) | |
454 | { | |
455 | /* xgettext:c-format */ | |
456 | einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"), | |
457 | pe_def_file->exports[i].internal_name, | |
458 | blhe->type, bfd_link_hash_defined); | |
459 | } | |
460 | else | |
461 | { | |
462 | /* xgettext:c-format */ | |
463 | einfo (_("%XCannot export %s: symbol not found\n"), | |
464 | pe_def_file->exports[i].internal_name); | |
465 | } | |
466 | free (name); | |
467 | } | |
468 | } | |
469 | ||
470 | /************************************************************************ | |
471 | ||
472 | Build the bfd that will contain .edata and .reloc sections | |
473 | ||
474 | ************************************************************************/ | |
475 | ||
476 | static void | |
c6c37250 DD |
477 | build_filler_bfd (include_edata) |
478 | int include_edata; | |
252b5132 RH |
479 | { |
480 | lang_input_statement_type *filler_file; | |
481 | filler_file = lang_add_input_file ("dll stuff", | |
482 | lang_input_file_is_fake_enum, | |
483 | NULL); | |
484 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", output_bfd); | |
485 | if (filler_bfd == NULL | |
486 | || !bfd_set_arch_mach (filler_bfd, | |
487 | bfd_get_arch (output_bfd), | |
488 | bfd_get_mach (output_bfd))) | |
489 | { | |
490 | einfo ("%X%P: can not create BFD %E\n"); | |
491 | return; | |
492 | } | |
493 | ||
c6c37250 | 494 | if (include_edata) |
252b5132 | 495 | { |
c6c37250 DD |
496 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
497 | if (edata_s == NULL | |
498 | || !bfd_set_section_flags (filler_bfd, edata_s, | |
499 | (SEC_HAS_CONTENTS | |
500 | | SEC_ALLOC | |
501 | | SEC_LOAD | |
502 | | SEC_KEEP | |
503 | | SEC_IN_MEMORY))) | |
504 | { | |
505 | einfo ("%X%P: can not create .edata section: %E\n"); | |
506 | return; | |
507 | } | |
508 | bfd_set_section_size (filler_bfd, edata_s, edata_sz); | |
252b5132 | 509 | } |
252b5132 RH |
510 | |
511 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
512 | if (reloc_s == NULL | |
513 | || !bfd_set_section_flags (filler_bfd, reloc_s, | |
514 | (SEC_HAS_CONTENTS | |
515 | | SEC_ALLOC | |
516 | | SEC_LOAD | |
517 | | SEC_KEEP | |
518 | | SEC_IN_MEMORY))) | |
519 | { | |
520 | einfo ("%X%P: can not create .reloc section: %E\n"); | |
521 | return; | |
522 | } | |
523 | bfd_set_section_size (filler_bfd, reloc_s, 0); | |
524 | ||
525 | ldlang_add_file (filler_file); | |
526 | } | |
527 | ||
528 | /************************************************************************ | |
529 | ||
530 | Gather all the exported symbols and build the .edata section | |
531 | ||
532 | ************************************************************************/ | |
533 | ||
534 | static void | |
535 | generate_edata (abfd, info) | |
536 | bfd *abfd; | |
1069dd8d | 537 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
538 | { |
539 | int i, next_ordinal; | |
540 | int name_table_size = 0; | |
541 | const char *dlnp; | |
542 | ||
543 | /* First, we need to know how many exported symbols there are, | |
544 | and what the range of ordinals is. */ | |
545 | ||
546 | if (pe_def_file->name) | |
547 | { | |
548 | dll_name = pe_def_file->name; | |
549 | } | |
550 | else | |
551 | { | |
552 | dll_name = abfd->filename; | |
553 | for (dlnp = dll_name; *dlnp; dlnp++) | |
554 | { | |
555 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') | |
556 | dll_name = dlnp + 1; | |
557 | } | |
558 | } | |
559 | ||
560 | if (count_with_ordinals && max_ordinal > count_exported) | |
561 | { | |
562 | if (min_ordinal > max_ordinal - count_exported + 1) | |
563 | min_ordinal = max_ordinal - count_exported + 1; | |
564 | } | |
565 | else | |
566 | { | |
567 | min_ordinal = 1; | |
568 | max_ordinal = count_exported; | |
569 | } | |
570 | export_table_size = max_ordinal - min_ordinal + 1; | |
571 | ||
572 | exported_symbols = (int *) xmalloc (export_table_size * sizeof (int)); | |
573 | for (i = 0; i < export_table_size; i++) | |
574 | exported_symbols[i] = -1; | |
575 | ||
576 | /* Now we need to assign ordinals to those that don't have them */ | |
577 | for (i = 0; i < NE; i++) | |
578 | { | |
579 | if (exported_symbol_sections[i]) | |
580 | { | |
581 | if (pe_def_file->exports[i].ordinal != -1) | |
582 | { | |
583 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
584 | int pi = exported_symbols[ei]; | |
585 | if (pi != -1) | |
586 | { | |
587 | /* xgettext:c-format */ | |
588 | einfo (_("%XError, oridinal used twice: %d (%s vs %s)\n"), | |
589 | pe_def_file->exports[i].ordinal, | |
590 | pe_def_file->exports[i].name, | |
591 | pe_def_file->exports[pi].name); | |
592 | } | |
593 | exported_symbols[ei] = i; | |
594 | } | |
595 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
596 | } | |
597 | } | |
598 | ||
599 | next_ordinal = min_ordinal; | |
600 | for (i = 0; i < NE; i++) | |
601 | if (exported_symbol_sections[i]) | |
602 | if (pe_def_file->exports[i].ordinal == -1) | |
603 | { | |
604 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
605 | next_ordinal++; | |
606 | exported_symbols[next_ordinal - min_ordinal] = i; | |
607 | pe_def_file->exports[i].ordinal = next_ordinal; | |
608 | } | |
609 | ||
610 | /* OK, now we can allocate some memory */ | |
611 | ||
612 | edata_sz = (40 /* directory */ | |
613 | + 4 * export_table_size /* addresses */ | |
614 | + 4 * count_exported_byname /* name ptrs */ | |
615 | + 2 * count_exported_byname /* ordinals */ | |
616 | + name_table_size + strlen (dll_name) + 1); | |
617 | } | |
618 | ||
8a5b676c DD |
619 | /* Fill the exported symbol offsets. The preliminary work has already |
620 | been done in process_def_file(). */ | |
621 | ||
622 | static void | |
623 | fill_exported_offsets (abfd, info) | |
f0c87f88 | 624 | bfd *abfd ATTRIBUTE_UNUSED; |
8a5b676c DD |
625 | struct bfd_link_info *info; |
626 | { | |
f0c87f88 | 627 | int i; |
8a5b676c | 628 | struct bfd_link_hash_entry *blhe; |
f0c87f88 | 629 | |
8a5b676c DD |
630 | for (i = 0; i < pe_def_file->num_exports; i++) |
631 | { | |
632 | char *name = (char *) xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); | |
633 | if (pe_details->underscored) | |
634 | { | |
635 | *name = '_'; | |
636 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
637 | } | |
638 | else | |
639 | strcpy (name, pe_def_file->exports[i].internal_name); | |
640 | ||
641 | blhe = bfd_link_hash_lookup (info->hash, | |
642 | name, | |
643 | false, false, true); | |
644 | ||
645 | if (blhe && (blhe->type == bfd_link_hash_defined)) | |
646 | { | |
647 | exported_symbol_offsets[i] = blhe->u.def.value; | |
648 | } | |
649 | free (name); | |
650 | } | |
651 | } | |
652 | ||
252b5132 RH |
653 | static void |
654 | fill_edata (abfd, info) | |
655 | bfd *abfd; | |
1069dd8d | 656 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
657 | { |
658 | int i, hint; | |
659 | unsigned char *edirectory; | |
660 | unsigned long *eaddresses; | |
661 | unsigned long *enameptrs; | |
662 | unsigned short *eordinals; | |
663 | unsigned char *enamestr; | |
664 | time_t now; | |
665 | ||
666 | time (&now); | |
667 | ||
668 | edata_d = (unsigned char *) xmalloc (edata_sz); | |
669 | ||
670 | /* Note use of array pointer math here */ | |
671 | edirectory = edata_d; | |
672 | eaddresses = (unsigned long *) (edata_d + 40); | |
673 | enameptrs = eaddresses + export_table_size; | |
674 | eordinals = (unsigned short *) (enameptrs + count_exported_byname); | |
675 | enamestr = (char *) (eordinals + count_exported_byname); | |
676 | ||
677 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) + edata_s->output_section->vma - image_base) | |
678 | ||
679 | memset (edata_d, 0, 40); | |
680 | bfd_put_32 (abfd, now, edata_d + 4); | |
681 | if (pe_def_file->version_major != -1) | |
682 | { | |
683 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
684 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
685 | } | |
686 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); | |
687 | strcpy (enamestr, dll_name); | |
688 | enamestr += strlen (enamestr) + 1; | |
689 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
690 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
691 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
692 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
693 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
694 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
695 | ||
8a5b676c DD |
696 | fill_exported_offsets (abfd, info); |
697 | ||
252b5132 RH |
698 | /* Ok, now for the filling in part */ |
699 | hint = 0; | |
700 | for (i = 0; i < export_table_size; i++) | |
701 | { | |
702 | int s = exported_symbols[i]; | |
703 | if (s != -1) | |
704 | { | |
705 | struct sec *ssec = exported_symbol_sections[s]; | |
706 | unsigned long srva = (exported_symbol_offsets[s] | |
707 | + ssec->output_section->vma | |
708 | + ssec->output_offset); | |
45b1f63c | 709 | int ord = pe_def_file->exports[s].ordinal; |
252b5132 | 710 | |
45b1f63c DD |
711 | bfd_put_32 (abfd, srva - image_base, |
712 | (void *) (eaddresses + ord - min_ordinal)); | |
252b5132 RH |
713 | if (!pe_def_file->exports[s].flag_noname) |
714 | { | |
715 | char *ename = pe_def_file->exports[s].name; | |
716 | bfd_put_32 (abfd, ERVA (enamestr), (void *) enameptrs); | |
45b1f63c | 717 | enameptrs++; |
252b5132 RH |
718 | strcpy (enamestr, ename); |
719 | enamestr += strlen (enamestr) + 1; | |
45b1f63c DD |
720 | bfd_put_16 (abfd, ord - min_ordinal, (void *) eordinals); |
721 | eordinals++; | |
252b5132 RH |
722 | pe_def_file->exports[s].hint = hint++; |
723 | } | |
252b5132 RH |
724 | } |
725 | } | |
726 | } | |
727 | ||
728 | /************************************************************************ | |
729 | ||
730 | Gather all the relocations and build the .reloc section | |
731 | ||
732 | ************************************************************************/ | |
733 | ||
734 | static void | |
735 | generate_reloc (abfd, info) | |
736 | bfd *abfd; | |
737 | struct bfd_link_info *info; | |
738 | { | |
739 | ||
740 | /* for .reloc stuff */ | |
c6c37250 | 741 | reloc_data_type *reloc_data; |
252b5132 RH |
742 | int total_relocs = 0; |
743 | int i; | |
744 | unsigned long sec_page = (unsigned long) (-1); | |
745 | unsigned long page_ptr, page_count; | |
746 | int bi; | |
747 | bfd *b; | |
748 | struct sec *s; | |
749 | ||
750 | total_relocs = 0; | |
751 | for (b = info->input_bfds; b; b = b->link_next) | |
752 | for (s = b->sections; s; s = s->next) | |
753 | total_relocs += s->reloc_count; | |
754 | ||
c6c37250 | 755 | reloc_data = (reloc_data_type *) xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
756 | |
757 | total_relocs = 0; | |
758 | bi = 0; | |
759 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next) | |
760 | { | |
761 | arelent **relocs; | |
762 | int relsize, nrelocs, i; | |
763 | ||
764 | for (s = b->sections; s; s = s->next) | |
765 | { | |
766 | unsigned long sec_vma = s->output_section->vma + s->output_offset; | |
767 | asymbol **symbols; | |
768 | int nsyms, symsize; | |
769 | ||
770 | /* if it's not loaded, we don't need to relocate it this way */ | |
771 | if (!(s->output_section->flags & SEC_LOAD)) | |
772 | continue; | |
773 | ||
774 | /* I don't know why there would be a reloc for these, but I've | |
775 | seen it happen - DJ */ | |
776 | if (s->output_section == &bfd_abs_section) | |
777 | continue; | |
778 | ||
779 | if (s->output_section->vma == 0) | |
780 | { | |
781 | /* Huh? Shouldn't happen, but punt if it does */ | |
782 | einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n", | |
783 | s->output_section->name, s->output_section->index, | |
784 | s->output_section->flags); | |
785 | continue; | |
786 | } | |
787 | ||
788 | symsize = bfd_get_symtab_upper_bound (b); | |
789 | symbols = (asymbol **) xmalloc (symsize); | |
790 | nsyms = bfd_canonicalize_symtab (b, symbols); | |
791 | ||
792 | relsize = bfd_get_reloc_upper_bound (b, s); | |
793 | relocs = (arelent **) xmalloc ((size_t) relsize); | |
794 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); | |
795 | ||
796 | for (i = 0; i < nrelocs; i++) | |
797 | { | |
798 | if (!relocs[i]->howto->pc_relative | |
c6c37250 | 799 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 800 | { |
c6c37250 DD |
801 | bfd_vma sym_vma; |
802 | struct symbol_cache_entry *sym = *relocs[i]->sym_ptr_ptr; | |
803 | sym_vma = (relocs[i]->addend | |
804 | + sym->value | |
805 | + sym->section->vma | |
806 | + sym->section->output_offset | |
807 | + sym->section->output_section->vma); | |
808 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; | |
344a211f NC |
809 | |
810 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) | |
811 | ||
812 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, | |
813 | relocs[i]->howto->rightshift) | |
252b5132 | 814 | { |
344a211f | 815 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
816 | reloc_data[total_relocs].type = 3; |
817 | total_relocs++; | |
252b5132 | 818 | break; |
344a211f NC |
819 | case BITS_AND_SHIFT (16, 0): |
820 | reloc_data[total_relocs].type = 2; | |
821 | total_relocs++; | |
822 | break; | |
823 | case BITS_AND_SHIFT (16, 16): | |
824 | reloc_data[total_relocs].type = 4; | |
825 | /* FIXME: we can't know the symbol's right value yet, | |
826 | but we probably can safely assume that CE will relocate | |
827 | us in 64k blocks, so leaving it zero is safe. */ | |
828 | reloc_data[total_relocs].extra = 0; | |
829 | total_relocs++; | |
830 | break; | |
831 | case BITS_AND_SHIFT (26, 2): | |
832 | reloc_data[total_relocs].type = 5; | |
833 | total_relocs++; | |
834 | break; | |
252b5132 RH |
835 | default: |
836 | /* xgettext:c-format */ | |
837 | einfo (_("%XError: %d-bit reloc in dll\n"), | |
838 | relocs[i]->howto->bitsize); | |
839 | break; | |
840 | } | |
841 | } | |
842 | } | |
843 | free (relocs); | |
844 | /* Warning: the allocated symbols are remembered in BFD and reused | |
845 | later, so don't free them! */ | |
846 | /* free (symbols); */ | |
847 | } | |
848 | } | |
849 | ||
850 | /* At this point, we have total_relocs relocation addresses in | |
851 | reloc_addresses, which are all suitable for the .reloc section. | |
852 | We must now create the new sections. */ | |
853 | ||
c6c37250 | 854 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
855 | |
856 | for (i = 0; i < total_relocs; i++) | |
857 | { | |
c6c37250 | 858 | unsigned long this_page = (reloc_data[i].vma >> 12); |
344a211f | 859 | |
252b5132 RH |
860 | if (this_page != sec_page) |
861 | { | |
862 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align */ | |
863 | reloc_sz += 8; | |
864 | sec_page = this_page; | |
865 | } | |
344a211f | 866 | |
252b5132 | 867 | reloc_sz += 2; |
344a211f NC |
868 | |
869 | if (reloc_data[i].type == 4) | |
870 | reloc_sz += 2; | |
252b5132 RH |
871 | } |
872 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align */ | |
873 | ||
874 | reloc_d = (unsigned char *) xmalloc (reloc_sz); | |
875 | ||
876 | sec_page = (unsigned long) (-1); | |
877 | reloc_sz = 0; | |
878 | page_ptr = (unsigned long) (-1); | |
879 | page_count = 0; | |
880 | for (i = 0; i < total_relocs; i++) | |
881 | { | |
c6c37250 | 882 | unsigned long rva = reloc_data[i].vma - image_base; |
252b5132 RH |
883 | unsigned long this_page = (rva & ~0xfff); |
884 | if (this_page != sec_page) | |
885 | { | |
886 | while (reloc_sz & 3) | |
887 | reloc_d[reloc_sz++] = 0; | |
888 | if (page_ptr != (unsigned long) (-1)) | |
889 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); | |
890 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); | |
891 | page_ptr = reloc_sz; | |
892 | reloc_sz += 8; | |
893 | sec_page = this_page; | |
894 | page_count = 0; | |
895 | } | |
c6c37250 DD |
896 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type<<12), |
897 | reloc_d + reloc_sz); | |
252b5132 | 898 | reloc_sz += 2; |
c6c37250 DD |
899 | if (reloc_data[i].type == 4) |
900 | { | |
901 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
902 | reloc_sz += 2; | |
903 | } | |
252b5132 RH |
904 | page_count++; |
905 | } | |
906 | while (reloc_sz & 3) | |
907 | reloc_d[reloc_sz++] = 0; | |
908 | if (page_ptr != (unsigned long) (-1)) | |
909 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); | |
910 | while (reloc_sz < reloc_s->_raw_size) | |
911 | reloc_d[reloc_sz++] = 0; | |
912 | } | |
913 | ||
914 | /************************************************************************ | |
915 | ||
916 | Given the exiting def_file structure, print out a .DEF file that | |
917 | corresponds to it. | |
918 | ||
919 | ************************************************************************/ | |
920 | ||
921 | static void | |
922 | quoteput (s, f, needs_quotes) | |
923 | char *s; | |
924 | FILE * f; | |
925 | int needs_quotes; | |
926 | { | |
927 | char *cp; | |
928 | for (cp = s; *cp; cp++) | |
929 | if (*cp == '\'' | |
930 | || *cp == '"' | |
931 | || *cp == '\\' | |
932 | || isspace ((unsigned char) *cp) | |
933 | || *cp == ',' | |
934 | || *cp == ';') | |
935 | needs_quotes = 1; | |
936 | if (needs_quotes) | |
937 | { | |
938 | putc ('"', f); | |
939 | while (*s) | |
940 | { | |
941 | if (*s == '"' || *s == '\\') | |
942 | putc ('\\', f); | |
943 | putc (*s, f); | |
944 | s++; | |
945 | } | |
946 | putc ('"', f); | |
947 | } | |
948 | else | |
949 | fputs (s, f); | |
950 | } | |
951 | ||
952 | void | |
953 | pe_dll_generate_def_file (pe_out_def_filename) | |
1069dd8d | 954 | const char *pe_out_def_filename; |
252b5132 RH |
955 | { |
956 | int i; | |
957 | FILE *out = fopen (pe_out_def_filename, "w"); | |
958 | if (out == NULL) | |
959 | { | |
960 | /* xgettext:c-format */ | |
961 | einfo (_("%s: Can't open output def file %s\n"), | |
962 | program_name, pe_out_def_filename); | |
963 | } | |
964 | ||
965 | if (pe_def_file) | |
966 | { | |
967 | if (pe_def_file->name) | |
968 | { | |
969 | if (pe_def_file->is_dll) | |
970 | fprintf (out, "LIBRARY "); | |
971 | else | |
972 | fprintf (out, "NAME "); | |
973 | quoteput (pe_def_file->name, out, 1); | |
974 | if (pe_data (output_bfd)->pe_opthdr.ImageBase) | |
975 | fprintf (out, " BASE=0x%lx", | |
976 | (unsigned long) pe_data (output_bfd)->pe_opthdr.ImageBase); | |
977 | fprintf (out, "\n"); | |
978 | } | |
979 | ||
980 | if (pe_def_file->description) | |
981 | { | |
982 | fprintf (out, "DESCRIPTION "); | |
983 | quoteput (pe_def_file->description, out, 1); | |
984 | fprintf (out, "\n"); | |
985 | } | |
986 | ||
987 | if (pe_def_file->version_minor != -1) | |
988 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
989 | pe_def_file->version_minor); | |
990 | else if (pe_def_file->version_major != -1) | |
991 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
992 | ||
993 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
994 | fprintf (out, "\n"); | |
995 | ||
996 | if (pe_def_file->stack_commit != -1) | |
997 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
998 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
999 | else if (pe_def_file->stack_reserve != -1) | |
1000 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
1001 | if (pe_def_file->heap_commit != -1) | |
1002 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1003 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1004 | else if (pe_def_file->heap_reserve != -1) | |
1005 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1006 | ||
1007 | if (pe_def_file->num_section_defs > 0) | |
1008 | { | |
1009 | fprintf (out, "\nSECTIONS\n\n"); | |
1010 | for (i = 0; i < pe_def_file->num_section_defs; i++) | |
1011 | { | |
1012 | fprintf (out, " "); | |
1013 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
1014 | if (pe_def_file->section_defs[i].class) | |
1015 | { | |
1016 | fprintf (out, " CLASS "); | |
1017 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1018 | } | |
1019 | if (pe_def_file->section_defs[i].flag_read) | |
1020 | fprintf (out, " READ"); | |
1021 | if (pe_def_file->section_defs[i].flag_write) | |
1022 | fprintf (out, " WRITE"); | |
1023 | if (pe_def_file->section_defs[i].flag_execute) | |
1024 | fprintf (out, " EXECUTE"); | |
1025 | if (pe_def_file->section_defs[i].flag_shared) | |
1026 | fprintf (out, " SHARED"); | |
1027 | fprintf (out, "\n"); | |
1028 | } | |
1029 | } | |
1030 | ||
1031 | if (pe_def_file->num_exports > 0) | |
1032 | { | |
1033 | fprintf (out, "\nEXPORTS\n\n"); | |
1034 | for (i = 0; i < pe_def_file->num_exports; i++) | |
1035 | { | |
1036 | def_file_export *e = pe_def_file->exports + i; | |
1037 | fprintf (out, " "); | |
1038 | quoteput (e->name, out, 0); | |
1039 | if (e->internal_name && strcmp (e->internal_name, e->name)) | |
1040 | { | |
1041 | fprintf (out, " = "); | |
1042 | quoteput (e->internal_name, out, 0); | |
1043 | } | |
1044 | if (e->ordinal != -1) | |
1045 | fprintf (out, " @%d", e->ordinal); | |
1046 | if (e->flag_private) | |
1047 | fprintf (out, " PRIVATE"); | |
1048 | if (e->flag_constant) | |
1049 | fprintf (out, " CONSTANT"); | |
1050 | if (e->flag_noname) | |
1051 | fprintf (out, " NONAME"); | |
1052 | if (e->flag_data) | |
1053 | fprintf (out, " DATA"); | |
1054 | ||
1055 | fprintf (out, "\n"); | |
1056 | } | |
1057 | } | |
1058 | ||
1059 | if (pe_def_file->num_imports > 0) | |
1060 | { | |
1061 | fprintf (out, "\nIMPORTS\n\n"); | |
1062 | for (i = 0; i < pe_def_file->num_imports; i++) | |
1063 | { | |
1064 | def_file_import *im = pe_def_file->imports + i; | |
1065 | fprintf (out, " "); | |
1066 | if (im->internal_name | |
1067 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1068 | { | |
1069 | quoteput (im->internal_name, out, 0); | |
1070 | fprintf (out, " = "); | |
1071 | } | |
1072 | quoteput (im->module->name, out, 0); | |
1073 | fprintf (out, "."); | |
1074 | if (im->name) | |
1075 | quoteput (im->name, out, 0); | |
1076 | else | |
1077 | fprintf (out, "%d", im->ordinal); | |
1078 | fprintf (out, "\n"); | |
1079 | } | |
1080 | } | |
1081 | } | |
1082 | else | |
1083 | fprintf (out, _("; no contents available\n")); | |
1084 | ||
1085 | if (fclose (out) == EOF) | |
1086 | { | |
1087 | /* xgettext:c-format */ | |
1088 | einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename); | |
1089 | } | |
1090 | } | |
1091 | ||
1092 | /************************************************************************ | |
1093 | ||
1094 | Generate the import library | |
1095 | ||
1096 | ************************************************************************/ | |
1097 | ||
1098 | static asymbol **symtab; | |
1099 | static int symptr; | |
1100 | static int tmp_seq; | |
1101 | static const char *dll_filename; | |
1102 | static char *dll_symname; | |
1103 | ||
1104 | #define UNDSEC (asection *) &bfd_und_section | |
1105 | ||
1106 | static asection * | |
1107 | quick_section(abfd, name, flags, align) | |
1108 | bfd *abfd; | |
1109 | const char *name; | |
1110 | int flags; | |
1111 | int align; | |
1112 | { | |
1113 | asection *sec; | |
1114 | asymbol *sym; | |
1115 | ||
1116 | sec = bfd_make_section_old_way (abfd, name); | |
1117 | bfd_set_section_flags (abfd, sec, flags | |
1118 | | SEC_ALLOC | |
1119 | | SEC_LOAD | |
1120 | | SEC_KEEP | |
1121 | ); | |
1122 | bfd_set_section_alignment (abfd, sec, align); | |
1123 | /* remember to undo this before trying to link internally! */ | |
1124 | sec->output_section = sec; | |
1125 | ||
1126 | sym = bfd_make_empty_symbol (abfd); | |
1127 | symtab[symptr++] = sym; | |
1128 | sym->name = sec->name; | |
1129 | sym->section = sec; | |
1130 | sym->flags = BSF_LOCAL; | |
1131 | sym->value = 0; | |
1132 | ||
1133 | return sec; | |
1134 | } | |
1135 | ||
1136 | static void | |
1137 | quick_symbol (abfd, n1, n2, n3, sec, flags, addr) | |
1138 | bfd *abfd; | |
1139 | char *n1; | |
1140 | char *n2; | |
1141 | char *n3; | |
1142 | asection *sec; | |
1143 | int flags; | |
1144 | int addr; | |
1145 | { | |
1146 | asymbol *sym; | |
1147 | char *name = (char *) xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); | |
1148 | strcpy (name, n1); | |
1149 | strcat (name, n2); | |
1150 | strcat (name, n3); | |
1151 | sym = bfd_make_empty_symbol (abfd); | |
1152 | sym->name = name; | |
1153 | sym->section = sec; | |
1154 | sym->flags = flags; | |
1155 | sym->value = addr; | |
1156 | symtab[symptr++] = sym; | |
1157 | } | |
1158 | ||
1159 | static arelent *reltab = 0; | |
1160 | static int relcount = 0, relsize = 0; | |
1161 | ||
1162 | static void | |
1163 | quick_reloc (abfd, address, which_howto, symidx) | |
1164 | bfd *abfd; | |
1165 | int address; | |
1166 | int which_howto; | |
1167 | int symidx; | |
1168 | { | |
1169 | if (relcount >= (relsize-1)) | |
1170 | { | |
1171 | relsize += 10; | |
1172 | if (reltab) | |
1173 | reltab = (arelent *) xrealloc (reltab, relsize * sizeof (arelent)); | |
1174 | else | |
1175 | reltab = (arelent *) xmalloc (relsize * sizeof (arelent)); | |
1176 | } | |
1177 | reltab[relcount].address = address; | |
1178 | reltab[relcount].addend = 0; | |
1179 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
1180 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
1181 | relcount++; | |
1182 | } | |
1183 | ||
1184 | static void | |
1185 | save_relocs (asection *sec) | |
1186 | { | |
1187 | int i; | |
1188 | sec->relocation = reltab; | |
1189 | sec->reloc_count = relcount; | |
1190 | sec->orelocation = (arelent **) xmalloc ((relcount+1) * sizeof (arelent *)); | |
1191 | for (i=0; i<relcount; i++) | |
1192 | sec->orelocation[i] = sec->relocation + i; | |
1193 | sec->orelocation[relcount] = 0; | |
1194 | sec->flags |= SEC_RELOC; | |
1195 | reltab = 0; | |
1196 | relcount = relsize = 0; | |
1197 | } | |
1198 | ||
1199 | /* | |
1200 | * .section .idata$2 | |
1201 | * .global __head_my_dll | |
1202 | * __head_my_dll: | |
1203 | * .rva hname | |
1204 | * .long 0 | |
1205 | * .long 0 | |
1206 | * .rva __my_dll_iname | |
1207 | * .rva fthunk | |
1208 | * | |
1209 | * .section .idata$5 | |
1210 | * .long 0 | |
1211 | * fthunk: | |
1212 | * | |
1213 | * .section .idata$4 | |
1214 | * .long 0 | |
1215 | * hname: | |
1216 | */ | |
1217 | ||
1218 | static bfd * | |
1219 | make_head (parent) | |
1220 | bfd *parent; | |
1221 | { | |
1222 | asection *id2, *id5, *id4; | |
1223 | unsigned char *d2, *d5, *d4; | |
1224 | char *oname; | |
1225 | bfd *abfd; | |
1226 | ||
1227 | oname = (char *) xmalloc (20); | |
1228 | sprintf (oname, "d%06d.o", tmp_seq); | |
1229 | tmp_seq++; | |
1230 | ||
1231 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1232 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1233 | bfd_make_writable (abfd); |
1234 | ||
1235 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1236 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1237 | |
1238 | symptr = 0; | |
1239 | symtab = (asymbol **) xmalloc (6 * sizeof (asymbol *)); | |
1240 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); | |
1241 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1242 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
c6c37250 DD |
1243 | quick_symbol (abfd, U("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
1244 | quick_symbol (abfd, U(""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
1245 | ||
1246 | /* OK, pay attention here. I got confused myself looking back at | |
1247 | it. We create a four-byte section to mark the beginning of the | |
1248 | list, and we include an offset of 4 in the section, so that the | |
1249 | pointer to the list points to the *end* of this section, which is | |
1250 | the start of the list of sections from other objects. */ | |
252b5132 RH |
1251 | |
1252 | bfd_set_section_size (abfd, id2, 20); | |
1253 | d2 = (unsigned char *) xmalloc (20); | |
1254 | id2->contents = d2; | |
1255 | memset (d2, 0, 20); | |
1256 | d2[0] = d2[16] = 4; /* reloc addend */ | |
1257 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); | |
1258 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
1259 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
1260 | save_relocs (id2); | |
1261 | ||
1262 | bfd_set_section_size (abfd, id5, 4); | |
1263 | d5 = (unsigned char *) xmalloc (4); | |
1264 | id5->contents = d5; | |
1265 | memset (d5, 0, 4); | |
1266 | ||
1267 | bfd_set_section_size (abfd, id4, 4); | |
1268 | d4 = (unsigned char *) xmalloc (4); | |
1269 | id4->contents = d4; | |
1270 | memset (d4, 0, 4); | |
1271 | ||
1272 | bfd_set_symtab (abfd, symtab, symptr); | |
1273 | ||
1274 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
1275 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1276 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1277 | ||
1278 | bfd_make_readable (abfd); | |
1279 | return abfd; | |
1280 | } | |
1281 | ||
1282 | /* | |
1283 | * .section .idata$4 | |
1284 | * .long 0 | |
1285 | * .section .idata$5 | |
1286 | * .long 0 | |
1287 | * .section idata$7 | |
1288 | * .global __my_dll_iname | |
1289 | *__my_dll_iname: | |
1290 | * .asciz "my.dll" | |
1291 | */ | |
1292 | ||
1293 | static bfd * | |
1294 | make_tail (parent) | |
1295 | bfd *parent; | |
1296 | { | |
1297 | asection *id4, *id5, *id7; | |
1298 | unsigned char *d4, *d5, *d7; | |
1299 | int len; | |
1300 | char *oname; | |
1301 | bfd *abfd; | |
1302 | ||
1303 | oname = (char *) xmalloc (20); | |
1304 | sprintf (oname, "d%06d.o", tmp_seq); | |
1305 | tmp_seq++; | |
1306 | ||
1307 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1308 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1309 | bfd_make_writable (abfd); |
1310 | ||
1311 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1312 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1313 | |
1314 | symptr = 0; | |
1315 | symtab = (asymbol **) xmalloc (5 * sizeof (asymbol *)); | |
1316 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
1317 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1318 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
c6c37250 | 1319 | quick_symbol (abfd, U(""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 RH |
1320 | |
1321 | bfd_set_section_size (abfd, id4, 4); | |
1322 | d4 = (unsigned char *) xmalloc (4); | |
1323 | id4->contents = d4; | |
1324 | memset (d4, 0, 4); | |
1325 | ||
1326 | bfd_set_section_size (abfd, id5, 4); | |
1327 | d5 = (unsigned char *) xmalloc (4); | |
1328 | id5->contents = d5; | |
1329 | memset (d5, 0, 4); | |
1330 | ||
1331 | len = strlen (dll_filename)+1; | |
1332 | if (len & 1) | |
1333 | len ++; | |
1334 | bfd_set_section_size (abfd, id7, len); | |
1335 | d7 = (unsigned char *) xmalloc (len); | |
1336 | id7->contents = d7; | |
1337 | strcpy (d7, dll_filename); | |
1338 | ||
1339 | bfd_set_symtab (abfd, symtab, symptr); | |
1340 | ||
1341 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1342 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1343 | bfd_set_section_contents (abfd, id7, d7, 0, len); | |
1344 | ||
1345 | bfd_make_readable (abfd); | |
1346 | return abfd; | |
1347 | } | |
1348 | ||
1349 | /* | |
1350 | * .text | |
1351 | * .global _function | |
1352 | * .global ___imp_function | |
1353 | * .global __imp__function | |
1354 | *_function: | |
1355 | * jmp *__imp__function: | |
1356 | * | |
1357 | * .section idata$7 | |
1358 | * .long __head_my_dll | |
1359 | * | |
1360 | * .section .idata$5 | |
1361 | *___imp_function: | |
1362 | *__imp__function: | |
1363 | *iat? | |
1364 | * .section .idata$4 | |
1365 | *iat? | |
1366 | * .section .idata$6 | |
1367 | *ID<ordinal>: | |
1368 | * .short <hint> | |
1369 | * .asciz "function" xlate? (add underscore, kill at) | |
1370 | */ | |
1371 | ||
1372 | static unsigned char jmp_ix86_bytes[] = { | |
1373 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 | |
1374 | }; | |
1375 | ||
344a211f NC |
1376 | /* |
1377 | *_function: | |
1378 | * mov.l ip+8,r0 | |
1379 | * mov.l @r0,r0 | |
1380 | * jmp @r0 | |
1381 | * nop | |
1382 | * .dw __imp_function | |
1383 | */ | |
1384 | ||
1385 | static unsigned char jmp_sh_bytes[] = { | |
1386 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 | |
1387 | }; | |
1388 | ||
1389 | /* | |
1390 | *_function: | |
1391 | * lui $t0,<high:__imp_function> | |
1392 | * lw $t0,<low:__imp_function> | |
1393 | * jr $t0 | |
1394 | * nop | |
1395 | */ | |
1396 | ||
1397 | static unsigned char jmp_mips_bytes[] = { | |
1398 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, | |
1399 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
1400 | }; | |
252b5132 RH |
1401 | |
1402 | static bfd * | |
1403 | make_one (exp, parent) | |
1404 | def_file_export *exp; | |
1405 | bfd *parent; | |
1406 | { | |
1407 | asection *tx, *id7, *id5, *id4, *id6; | |
f0c87f88 | 1408 | unsigned char *td, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
1409 | int len; |
1410 | char *oname; | |
1411 | bfd *abfd; | |
f0c87f88 NC |
1412 | unsigned char *jmp_bytes = NULL; |
1413 | int jmp_byte_count = 0; | |
c6c37250 DD |
1414 | |
1415 | switch (pe_details->pe_arch) | |
1416 | { | |
1417 | case PE_ARCH_i386: | |
1418 | jmp_bytes = jmp_ix86_bytes; | |
1419 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
1420 | break; | |
344a211f NC |
1421 | case PE_ARCH_sh: |
1422 | jmp_bytes = jmp_sh_bytes; | |
1423 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
1424 | break; | |
1425 | case PE_ARCH_mips: | |
1426 | jmp_bytes = jmp_mips_bytes; | |
1427 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
1428 | break; | |
c6c37250 | 1429 | } |
252b5132 RH |
1430 | |
1431 | oname = (char *) xmalloc (20); | |
1432 | sprintf (oname, "d%06d.o", tmp_seq); | |
1433 | tmp_seq++; | |
1434 | ||
1435 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1436 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1437 | bfd_make_writable (abfd); |
1438 | ||
1439 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1440 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1441 | |
1442 | symptr = 0; | |
1443 | symtab = (asymbol **) xmalloc (10 * sizeof (asymbol *)); | |
1444 | tx = quick_section (abfd, ".text", SEC_CODE|SEC_HAS_CONTENTS, 2); | |
1445 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
1446 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1447 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
1448 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
7c9e78f8 DD |
1449 | if (! exp->flag_data) |
1450 | quick_symbol (abfd, U(""), exp->internal_name, "", tx, BSF_GLOBAL, 0); | |
c6c37250 | 1451 | quick_symbol (abfd, U("_head_"), dll_symname, "", UNDSEC, BSF_GLOBAL, 0); |
5b4cf3f4 | 1452 | quick_symbol (abfd, U("_imp__"), exp->internal_name, "", id5, BSF_GLOBAL, 0); |
870df5dc NC |
1453 | if (pe_dll_compat_implib) |
1454 | quick_symbol (abfd, U("__imp_"), exp->internal_name, "", | |
1455 | id5, BSF_GLOBAL, 0); | |
252b5132 | 1456 | |
c6c37250 DD |
1457 | bfd_set_section_size (abfd, tx, jmp_byte_count); |
1458 | td = (unsigned char *) xmalloc (jmp_byte_count); | |
252b5132 | 1459 | tx->contents = td; |
c6c37250 DD |
1460 | memcpy (td, jmp_bytes, jmp_byte_count); |
1461 | switch (pe_details->pe_arch) | |
1462 | { | |
1463 | case PE_ARCH_i386: | |
1464 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); | |
1465 | break; | |
344a211f NC |
1466 | case PE_ARCH_sh: |
1467 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
1468 | break; | |
1469 | case PE_ARCH_mips: | |
1470 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
1471 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
1472 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
1473 | break; | |
c6c37250 | 1474 | } |
252b5132 RH |
1475 | save_relocs (tx); |
1476 | ||
1477 | bfd_set_section_size (abfd, id7, 4); | |
1478 | d7 = (unsigned char *) xmalloc (4); | |
1479 | id7->contents = d7; | |
1480 | memset (d7, 0, 4); | |
1481 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 6); | |
1482 | save_relocs (id7); | |
1483 | ||
1484 | bfd_set_section_size (abfd, id5, 4); | |
1485 | d5 = (unsigned char *) xmalloc (4); | |
1486 | id5->contents = d5; | |
1487 | memset (d5, 0, 4); | |
1488 | if (exp->flag_noname) | |
1489 | { | |
1490 | d5[0] = exp->ordinal; | |
1491 | d5[1] = exp->ordinal >> 8; | |
1492 | d5[3] = 0x80; | |
1493 | } | |
1494 | else | |
1495 | { | |
1496 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
1497 | save_relocs (id5); | |
1498 | } | |
1499 | ||
1500 | bfd_set_section_size (abfd, id4, 4); | |
1501 | d4 = (unsigned char *) xmalloc (4); | |
1502 | id4->contents = d4; | |
1503 | memset (d4, 0, 4); | |
1504 | if (exp->flag_noname) | |
1505 | { | |
1506 | d5[0] = exp->ordinal; | |
1507 | d5[1] = exp->ordinal >> 8; | |
1508 | d5[3] = 0x80; | |
1509 | } | |
1510 | else | |
1511 | { | |
1512 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
1513 | save_relocs (id4); | |
1514 | } | |
1515 | ||
1516 | if (exp->flag_noname) | |
1517 | { | |
1518 | len = 0; | |
1519 | bfd_set_section_size (abfd, id6, 0); | |
1520 | } | |
1521 | else | |
1522 | { | |
1523 | len = strlen (exp->name) + 3; | |
1524 | if (len & 1) | |
1525 | len++; | |
1526 | bfd_set_section_size (abfd, id6, len); | |
1527 | d6 = (unsigned char *) xmalloc (len); | |
1528 | id6->contents = d6; | |
1529 | memset (d6, 0, len); | |
1530 | d6[0] = exp->hint & 0xff; | |
1531 | d6[1] = exp->hint >> 8; | |
1532 | strcpy (d6+2, exp->name); | |
1533 | } | |
1534 | ||
1535 | bfd_set_symtab (abfd, symtab, symptr); | |
1536 | ||
c6c37250 | 1537 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); |
252b5132 RH |
1538 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
1539 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1540 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1541 | if (!exp->flag_noname) | |
1542 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
1543 | ||
1544 | bfd_make_readable (abfd); | |
1545 | return abfd; | |
1546 | } | |
1547 | ||
1548 | void | |
1549 | pe_dll_generate_implib (def, impfilename) | |
1550 | def_file *def; | |
1069dd8d | 1551 | const char *impfilename; |
252b5132 RH |
1552 | { |
1553 | int i; | |
1554 | bfd *ar_head; | |
1555 | bfd *ar_tail; | |
1556 | bfd *outarch; | |
1557 | bfd *head = 0; | |
1558 | ||
5aaace27 | 1559 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 RH |
1560 | dll_symname = xstrdup (dll_filename); |
1561 | for (i=0; dll_symname[i]; i++) | |
1562 | if (!isalnum ((unsigned char) dll_symname[i])) | |
1563 | dll_symname[i] = '_'; | |
1564 | ||
1565 | unlink (impfilename); | |
1566 | ||
1567 | outarch = bfd_openw (impfilename, 0); | |
1568 | ||
1569 | if (!outarch) | |
1570 | { | |
1571 | /* xgettext:c-format */ | |
1572 | einfo (_("%XCan't open .lib file: %s\n"), impfilename); | |
1573 | return; | |
1574 | } | |
1575 | ||
1576 | /* xgettext:c-format */ | |
1577 | einfo (_("Creating library file: %s\n"), impfilename); | |
1578 | ||
1579 | bfd_set_format (outarch, bfd_archive); | |
1580 | outarch->has_armap = 1; | |
1581 | ||
1582 | /* Work out a reasonable size of things to put onto one line. */ | |
1583 | ||
1584 | ar_head = make_head (outarch); | |
252b5132 RH |
1585 | |
1586 | for (i = 0; i<def->num_exports; i++) | |
1587 | { | |
1588 | /* The import library doesn't know about the internal name */ | |
1589 | char *internal = def->exports[i].internal_name; | |
1590 | bfd *n; | |
1591 | def->exports[i].internal_name = def->exports[i].name; | |
1592 | n = make_one (def->exports+i, outarch); | |
1593 | n->next = head; | |
1594 | head = n; | |
1595 | def->exports[i].internal_name = internal; | |
1596 | } | |
1597 | ||
c6c37250 DD |
1598 | ar_tail = make_tail (outarch); |
1599 | ||
1600 | if (ar_head == NULL || ar_tail == NULL) | |
1601 | return; | |
1602 | ||
252b5132 RH |
1603 | /* Now stick them all into the archive */ |
1604 | ||
1605 | ar_head->next = head; | |
1606 | ar_tail->next = ar_head; | |
1607 | head = ar_tail; | |
1608 | ||
1609 | if (! bfd_set_archive_head (outarch, head)) | |
1610 | einfo ("%Xbfd_set_archive_head: %s\n", bfd_errmsg (bfd_get_error ())); | |
1611 | ||
1612 | if (! bfd_close (outarch)) | |
1613 | einfo ("%Xbfd_close %s: %s\n", impfilename, bfd_errmsg (bfd_get_error ())); | |
1614 | ||
1615 | while (head != NULL) | |
1616 | { | |
1617 | bfd *n = head->next; | |
1618 | bfd_close (head); | |
1619 | head = n; | |
1620 | } | |
1621 | } | |
1622 | ||
1623 | static void | |
1624 | add_bfd_to_link (abfd, name, link_info) | |
1625 | bfd *abfd; | |
1626 | char *name; | |
1627 | struct bfd_link_info *link_info; | |
1628 | { | |
1629 | lang_input_statement_type *fake_file; | |
1630 | fake_file = lang_add_input_file (name, | |
1631 | lang_input_file_is_fake_enum, | |
1632 | NULL); | |
1633 | fake_file->the_bfd = abfd; | |
1634 | ldlang_add_file (fake_file); | |
1635 | if (!bfd_link_add_symbols (abfd, link_info)) | |
1636 | einfo ("%Xaddsym %s: %s\n", name, bfd_errmsg (bfd_get_error ())); | |
1637 | } | |
1638 | ||
1639 | void | |
1640 | pe_process_import_defs (output_bfd, link_info) | |
1641 | bfd *output_bfd; | |
1642 | struct bfd_link_info *link_info; | |
1643 | { | |
1644 | def_file_module *module; | |
c6c37250 | 1645 | pe_dll_id_target(bfd_get_target (output_bfd)); |
252b5132 RH |
1646 | |
1647 | if (!pe_def_file) | |
1648 | return; | |
1649 | ||
1650 | for (module = pe_def_file->modules; module; module = module->next) | |
1651 | { | |
1652 | int i, do_this_dll; | |
1653 | ||
1654 | dll_filename = module->name; | |
1655 | dll_symname = xstrdup (module->name); | |
1656 | for (i=0; dll_symname[i]; i++) | |
1657 | if (!isalnum (dll_symname[i])) | |
1658 | dll_symname[i] = '_'; | |
1659 | ||
1660 | do_this_dll = 0; | |
1661 | ||
1662 | for (i=0; i<pe_def_file->num_imports; i++) | |
1663 | if (pe_def_file->imports[i].module == module) | |
1664 | { | |
1665 | def_file_export exp; | |
1666 | struct bfd_link_hash_entry *blhe; | |
1667 | ||
1668 | /* see if we need this import */ | |
874c8c99 | 1669 | char *name = (char *) xmalloc (strlen (pe_def_file->imports[i].internal_name) + 2 + 6); |
c6c37250 | 1670 | sprintf (name, "%s%s", U(""), pe_def_file->imports[i].internal_name); |
252b5132 RH |
1671 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
1672 | false, false, false); | |
874c8c99 DD |
1673 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) |
1674 | { | |
1675 | sprintf (name, "%s%s", U("_imp__"), | |
1676 | pe_def_file->imports[i].internal_name); | |
1677 | blhe = bfd_link_hash_lookup (link_info->hash, name, | |
1678 | false, false, false); | |
1679 | } | |
252b5132 RH |
1680 | free (name); |
1681 | if (blhe && blhe->type == bfd_link_hash_undefined) | |
1682 | { | |
1683 | bfd *one; | |
1684 | /* we do */ | |
1685 | if (!do_this_dll) | |
1686 | { | |
1687 | bfd *ar_head = make_head (output_bfd); | |
1688 | add_bfd_to_link (ar_head, ar_head->filename, link_info); | |
1689 | do_this_dll = 1; | |
1690 | } | |
1691 | exp.internal_name = pe_def_file->imports[i].internal_name; | |
1692 | exp.name = pe_def_file->imports[i].name; | |
1693 | exp.ordinal = pe_def_file->imports[i].ordinal; | |
1694 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
1695 | exp.flag_private = 0; | |
1696 | exp.flag_constant = 0; | |
1697 | exp.flag_data = 0; | |
1698 | exp.flag_noname = exp.name ? 0 : 1; | |
1699 | one = make_one (&exp, output_bfd); | |
1700 | add_bfd_to_link (one, one->filename, link_info); | |
1701 | } | |
1702 | } | |
1703 | if (do_this_dll) | |
1704 | { | |
1705 | bfd *ar_tail = make_tail (output_bfd); | |
1706 | add_bfd_to_link (ar_tail, ar_tail->filename, link_info); | |
1707 | } | |
1708 | ||
1709 | free (dll_symname); | |
1710 | } | |
1711 | } | |
1712 | ||
1713 | /************************************************************************ | |
1714 | ||
1715 | We were handed a *.DLL file. Parse it and turn it into a set of | |
1716 | IMPORTS directives in the def file. Return true if the file was | |
1717 | handled, false if not. | |
1718 | ||
1719 | ************************************************************************/ | |
1720 | ||
1721 | static unsigned int | |
1722 | pe_get16 (abfd, where) | |
1723 | bfd *abfd; | |
1724 | int where; | |
1725 | { | |
1726 | unsigned char b[2]; | |
1727 | bfd_seek (abfd, where, SEEK_SET); | |
1728 | bfd_read (b, 1, 2, abfd); | |
1729 | return b[0] + (b[1]<<8); | |
1730 | } | |
1731 | ||
1732 | static unsigned int | |
1733 | pe_get32 (abfd, where) | |
1734 | bfd *abfd; | |
1735 | int where; | |
1736 | { | |
1737 | unsigned char b[4]; | |
1738 | bfd_seek (abfd, where, SEEK_SET); | |
1739 | bfd_read (b, 1, 4, abfd); | |
1740 | return b[0] + (b[1]<<8) + (b[2]<<16) + (b[3]<<24); | |
1741 | } | |
1742 | ||
1743 | #if 0 /* This is not currently used. */ | |
1744 | ||
1745 | static unsigned int | |
1746 | pe_as16 (ptr) | |
1747 | void *ptr; | |
1748 | { | |
1749 | unsigned char *b = ptr; | |
1750 | return b[0] + (b[1]<<8); | |
1751 | } | |
1752 | ||
1753 | #endif | |
1754 | ||
1755 | static unsigned int | |
1756 | pe_as32 (ptr) | |
1757 | void *ptr; | |
1758 | { | |
1759 | unsigned char *b = ptr; | |
1760 | return b[0] + (b[1]<<8) + (b[2]<<16) + (b[3]<<24); | |
1761 | } | |
1762 | ||
1763 | boolean | |
1764 | pe_implied_import_dll (filename) | |
1069dd8d | 1765 | const char *filename; |
252b5132 RH |
1766 | { |
1767 | bfd *dll; | |
1768 | unsigned long pe_header_offset, opthdr_ofs, num_entries, i; | |
1769 | unsigned long export_rva, export_size, nsections, secptr, expptr; | |
1770 | unsigned char *expdata, *erva; | |
1771 | unsigned long name_rvas, ordinals, nexp, ordbase; | |
1069dd8d | 1772 | const char *dll_name; |
252b5132 RH |
1773 | |
1774 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
1775 | the middle of the .rdata section. */ | |
1776 | ||
c6c37250 | 1777 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
1778 | if (!dll) |
1779 | { | |
1780 | einfo ("%Xopen %s: %s\n", filename, bfd_errmsg (bfd_get_error ())); | |
1781 | return false; | |
1782 | } | |
1783 | /* PEI dlls seem to be bfd_objects */ | |
1784 | if (!bfd_check_format (dll, bfd_object)) | |
1785 | { | |
1786 | einfo ("%X%s: this doesn't appear to be a DLL\n", filename); | |
1787 | return false; | |
1788 | } | |
1789 | ||
1790 | dll_name = filename; | |
1791 | for (i=0; filename[i]; i++) | |
1792 | if (filename[i] == '/' || filename[i] == '\\' || filename[i] == ':') | |
1793 | dll_name = filename + i + 1; | |
1794 | ||
1795 | pe_header_offset = pe_get32 (dll, 0x3c); | |
1796 | opthdr_ofs = pe_header_offset + 4 + 20; | |
1797 | num_entries = pe_get32 (dll, opthdr_ofs + 92); | |
1798 | if (num_entries < 1) /* no exports */ | |
1799 | return false; | |
1800 | export_rva = pe_get32 (dll, opthdr_ofs + 96); | |
1801 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
1802 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); | |
1803 | secptr = (pe_header_offset + 4 + 20 + | |
1804 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
1805 | expptr = 0; | |
1806 | for (i=0; i<nsections; i++) | |
1807 | { | |
1808 | char sname[8]; | |
1809 | unsigned long secptr1 = secptr + 40 * i; | |
1810 | unsigned long vaddr = pe_get32 (dll, secptr1 + 12); | |
1811 | unsigned long vsize = pe_get32 (dll, secptr1 + 16); | |
1812 | unsigned long fptr = pe_get32 (dll, secptr1 + 20); | |
1813 | bfd_seek(dll, secptr1, SEEK_SET); | |
1814 | bfd_read(sname, 1, 8, dll); | |
1815 | if (vaddr <= export_rva && vaddr+vsize > export_rva) | |
1816 | { | |
1817 | expptr = fptr + (export_rva - vaddr); | |
1818 | if (export_rva + export_size > vaddr + vsize) | |
1819 | export_size = vsize - (export_rva - vaddr); | |
1820 | break; | |
1821 | } | |
1822 | } | |
1823 | ||
1824 | expdata = (unsigned char *) xmalloc (export_size); | |
1825 | bfd_seek (dll, expptr, SEEK_SET); | |
1826 | bfd_read (expdata, 1, export_size, dll); | |
1827 | erva = expdata - export_rva; | |
1828 | ||
1829 | if (pe_def_file == 0) | |
1830 | pe_def_file = def_file_empty(); | |
1831 | ||
1832 | nexp = pe_as32 (expdata+24); | |
1833 | name_rvas = pe_as32 (expdata+32); | |
1834 | ordinals = pe_as32 (expdata+36); | |
1835 | ordbase = pe_as32 (expdata+16); | |
1836 | for (i=0; i<nexp; i++) | |
1837 | { | |
1838 | unsigned long name_rva = pe_as32 (erva+name_rvas+i*4); | |
1839 | def_file_import *imp; | |
1840 | imp = def_file_add_import (pe_def_file, erva+name_rva, dll_name, | |
1841 | i, 0); | |
1842 | } | |
1843 | ||
1844 | return true; | |
1845 | } | |
1846 | ||
1847 | /************************************************************************ | |
1848 | ||
1849 | These are the main functions, called from the emulation. The first | |
1850 | is called after the bfds are read, so we can guess at how much space | |
1851 | we need. The second is called after everything is placed, so we | |
1852 | can put the right values in place. | |
1853 | ||
1854 | ************************************************************************/ | |
1855 | ||
1856 | void | |
1857 | pe_dll_build_sections (abfd, info) | |
1858 | bfd *abfd; | |
1859 | struct bfd_link_info *info; | |
1860 | { | |
c6c37250 | 1861 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
1862 | process_def_file (abfd, info); |
1863 | ||
1864 | generate_edata (abfd, info); | |
c6c37250 DD |
1865 | build_filler_bfd (1); |
1866 | } | |
1867 | ||
1868 | void | |
1869 | pe_exe_build_sections (abfd, info) | |
1870 | bfd *abfd; | |
1069dd8d | 1871 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
c6c37250 DD |
1872 | { |
1873 | pe_dll_id_target (bfd_get_target (abfd)); | |
1874 | build_filler_bfd (0); | |
252b5132 RH |
1875 | } |
1876 | ||
1877 | void | |
1878 | pe_dll_fill_sections (abfd, info) | |
1879 | bfd *abfd; | |
1880 | struct bfd_link_info *info; | |
1881 | { | |
c6c37250 | 1882 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
1883 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
1884 | ||
1885 | generate_reloc (abfd, info); | |
1886 | if (reloc_sz > 0) | |
1887 | { | |
1888 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
1889 | ||
1890 | /* Resize the sections. */ | |
1891 | lang_size_sections (stat_ptr->head, abs_output_section, | |
1892 | &stat_ptr->head, 0, (bfd_vma) 0, false); | |
1893 | ||
1894 | /* Redo special stuff. */ | |
1895 | ldemul_after_allocation (); | |
1896 | ||
1897 | /* Do the assignments again. */ | |
1898 | lang_do_assignments (stat_ptr->head, | |
1899 | abs_output_section, | |
1900 | (fill_type) 0, (bfd_vma) 0); | |
1901 | } | |
1902 | ||
1903 | fill_edata (abfd, info); | |
1904 | ||
1905 | pe_data (abfd)->dll = 1; | |
1906 | ||
1907 | edata_s->contents = edata_d; | |
1908 | reloc_s->contents = reloc_d; | |
1909 | } | |
c6c37250 DD |
1910 | |
1911 | void | |
1912 | pe_exe_fill_sections (abfd, info) | |
1913 | bfd *abfd; | |
1914 | struct bfd_link_info *info; | |
1915 | { | |
1916 | pe_dll_id_target (bfd_get_target (abfd)); | |
1917 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; | |
1918 | ||
1919 | generate_reloc (abfd, info); | |
1920 | if (reloc_sz > 0) | |
1921 | { | |
1922 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
1923 | ||
1924 | /* Resize the sections. */ | |
1925 | lang_size_sections (stat_ptr->head, abs_output_section, | |
1926 | &stat_ptr->head, 0, (bfd_vma) 0, false); | |
1927 | ||
1928 | /* Redo special stuff. */ | |
1929 | ldemul_after_allocation (); | |
1930 | ||
1931 | /* Do the assignments again. */ | |
1932 | lang_do_assignments (stat_ptr->head, | |
1933 | abs_output_section, | |
1934 | (fill_type) 0, (bfd_vma) 0); | |
1935 | } | |
1936 | reloc_s->contents = reloc_d; | |
1937 | } |