Commit | Line | Data |
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252b5132 | 1 | /* Routines to help build PEI-format DLLs (Win32 etc) |
948f9114 | 2 | Copyright 1998, 1999, 2000, 2001 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" | |
3882b010 | 26 | #include "safe-ctype.h" |
252b5132 RH |
27 | |
28 | #include <time.h> | |
252b5132 RH |
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 | 43 | |
775cabad NC |
44 | /* This file turns a regular Windows PE image into a DLL. Because of |
45 | the complexity of this operation, it has been broken down into a | |
46 | number of separate modules which are all called by the main function | |
47 | at the end of this file. This function is not re-entrant and is | |
48 | normally only called once, so static variables are used to reduce | |
49 | the number of parameters and return values required. | |
50 | ||
51 | See also: ld/emultempl/pe.em. */ | |
52 | ||
53 | /* Auto-import feature by Paul Sokolovsky | |
54 | ||
55 | Quick facts: | |
56 | ||
57 | 1. With this feature on, DLL clients can import variables from DLL | |
58 | without any concern from their side (for example, without any source | |
59 | code modifications). | |
60 | ||
61 | 2. This is done completely in bounds of the PE specification (to be fair, | |
62 | there's a place where it pokes nose out of, but in practise it works). | |
63 | So, resulting module can be used with any other PE compiler/linker. | |
64 | ||
65 | 3. Auto-import is fully compatible with standard import method and they | |
66 | can be mixed together. | |
67 | ||
68 | 4. Overheads: space: 8 bytes per imported symbol, plus 20 for each | |
69 | reference to it; load time: negligible; virtual/physical memory: should be | |
70 | less than effect of DLL relocation, and I sincerely hope it doesn't affect | |
71 | DLL sharability (too much). | |
72 | ||
73 | Idea | |
74 | ||
75 | The obvious and only way to get rid of dllimport insanity is to make client | |
76 | access variable directly in the DLL, bypassing extra dereference. I.e., | |
77 | whenever client contains someting like | |
78 | ||
79 | mov dll_var,%eax, | |
80 | ||
81 | address of dll_var in the command should be relocated to point into loaded | |
82 | DLL. The aim is to make OS loader do so, and than make ld help with that. | |
83 | Import section of PE made following way: there's a vector of structures | |
84 | each describing imports from particular DLL. Each such structure points | |
85 | to two other parellel vectors: one holding imported names, and one which | |
86 | will hold address of corresponding imported name. So, the solution is | |
87 | de-vectorize these structures, making import locations be sparse and | |
88 | pointing directly into code. Before continuing, it is worth a note that, | |
89 | while authors strives to make PE act ELF-like, there're some other people | |
90 | make ELF act PE-like: elfvector, ;-) . | |
91 | ||
92 | Implementation | |
93 | ||
94 | For each reference of data symbol to be imported from DLL (to set of which | |
95 | belong symbols with name <sym>, if __imp_<sym> is found in implib), the | |
96 | import fixup entry is generated. That entry is of type | |
97 | IMAGE_IMPORT_DESCRIPTOR and stored in .idata$3 subsection. Each | |
98 | fixup entry contains pointer to symbol's address within .text section | |
99 | (marked with __fuN_<sym> symbol, where N is integer), pointer to DLL name | |
100 | (so, DLL name is referenced by multiple entries), and pointer to symbol | |
101 | name thunk. Symbol name thunk is singleton vector (__nm_th_<symbol>) | |
102 | pointing to IMAGE_IMPORT_BY_NAME structure (__nm_<symbol>) directly | |
103 | containing imported name. Here comes that "om the edge" problem mentioned | |
104 | above: PE specification rambles that name vector (OriginalFirstThunk) | |
105 | should run in parallel with addresses vector (FirstThunk), i.e. that they | |
106 | should have same number of elements and terminated with zero. We violate | |
107 | this, since FirstThunk points directly into machine code. But in practise, | |
108 | OS loader implemented the sane way: it goes thru OriginalFirstThunk and | |
109 | puts addresses to FirstThunk, not something else. It once again should be | |
110 | noted that dll and symbol name structures are reused across fixup entries | |
111 | and should be there anyway to support standard import stuff, so sustained | |
112 | overhead is 20 bytes per reference. Other question is whether having several | |
113 | IMAGE_IMPORT_DESCRIPTORS for the same DLL is possible. Answer is yes, it is | |
114 | done even by native compiler/linker (libth32's functions are in fact reside | |
115 | in windows9x kernel32.dll, so if you use it, you have two | |
116 | IMAGE_IMPORT_DESCRIPTORS for kernel32.dll). Yet other question is whether | |
117 | referencing the same PE structures several times is valid. The answer is why | |
118 | not, prohibitting that (detecting violation) would require more work on | |
119 | behalf of loader than not doing it. | |
120 | ||
121 | See also: ld/emultempl/pe.em. */ | |
b044cda1 CW |
122 | |
123 | static void | |
775cabad | 124 | add_bfd_to_link PARAMS ((bfd *, const char *, struct bfd_link_info *)); |
b044cda1 | 125 | |
775cabad | 126 | /* For emultempl/pe.em. */ |
252b5132 | 127 | |
775cabad | 128 | def_file * pe_def_file = 0; |
252b5132 RH |
129 | int pe_dll_export_everything = 0; |
130 | int pe_dll_do_default_excludes = 1; | |
131 | int pe_dll_kill_ats = 0; | |
132 | int pe_dll_stdcall_aliases = 0; | |
870df5dc NC |
133 | int pe_dll_warn_dup_exports = 0; |
134 | int pe_dll_compat_implib = 0; | |
b044cda1 | 135 | int pe_dll_extra_pe_debug = 0; |
252b5132 | 136 | |
775cabad | 137 | /* Static variables and types. */ |
252b5132 RH |
138 | |
139 | static bfd_vma image_base; | |
252b5132 RH |
140 | static bfd *filler_bfd; |
141 | static struct sec *edata_s, *reloc_s; | |
142 | static unsigned char *edata_d, *reloc_d; | |
1069dd8d | 143 | static size_t edata_sz, reloc_sz; |
252b5132 | 144 | |
775cabad NC |
145 | typedef struct |
146 | { | |
147 | char *target_name; | |
148 | char *object_target; | |
149 | unsigned int imagebase_reloc; | |
150 | int pe_arch; | |
151 | int bfd_arch; | |
152 | int underscored; | |
153 | } | |
154 | pe_details_type; | |
155 | ||
156 | typedef struct | |
157 | { | |
158 | char *name; | |
159 | int len; | |
160 | } | |
161 | autofilter_entry_type; | |
b044cda1 | 162 | |
c6c37250 | 163 | #define PE_ARCH_i386 1 |
344a211f NC |
164 | #define PE_ARCH_sh 2 |
165 | #define PE_ARCH_mips 3 | |
166 | #define PE_ARCH_arm 4 | |
775cabad | 167 | #define PE_ARCH_arm_epoc 5 |
c6c37250 | 168 | |
775cabad NC |
169 | static pe_details_type pe_detail_list[] = |
170 | { | |
c6c37250 DD |
171 | { |
172 | "pei-i386", | |
173 | "pe-i386", | |
174 | 7 /* R_IMAGEBASE */, | |
175 | PE_ARCH_i386, | |
176 | bfd_arch_i386, | |
177 | 1 | |
178 | }, | |
344a211f NC |
179 | { |
180 | "pei-shl", | |
181 | "pe-shl", | |
182 | 16 /* R_SH_IMAGEBASE */, | |
183 | PE_ARCH_sh, | |
184 | bfd_arch_sh, | |
185 | 1 | |
186 | }, | |
187 | { | |
188 | "pei-mips", | |
189 | "pe-mips", | |
190 | 34 /* MIPS_R_RVA */, | |
191 | PE_ARCH_mips, | |
192 | bfd_arch_mips, | |
193 | 0 | |
194 | }, | |
195 | { | |
196 | "pei-arm-little", | |
197 | "pe-arm-little", | |
198 | 11 /* ARM_RVA32 */, | |
199 | PE_ARCH_arm, | |
200 | bfd_arch_arm, | |
201 | 0 | |
202 | }, | |
775cabad NC |
203 | { |
204 | "epoc-pei-arm-little", | |
205 | "epoc-pe-arm-little", | |
206 | 11 /* ARM_RVA32 */, | |
207 | PE_ARCH_arm_epoc, | |
208 | bfd_arch_arm, | |
209 | 0 | |
210 | }, | |
1069dd8d | 211 | { NULL, NULL, 0, 0, 0, 0 } |
c6c37250 DD |
212 | }; |
213 | ||
214 | static pe_details_type *pe_details; | |
215 | ||
775cabad NC |
216 | static autofilter_entry_type autofilter_symbollist[] = |
217 | { | |
b044cda1 CW |
218 | { "DllMain@12", 10 }, |
219 | { "DllEntryPoint@0", 15 }, | |
220 | { "DllMainCRTStartup@12", 20 }, | |
221 | { "_cygwin_dll_entry@12", 20 }, | |
222 | { "_cygwin_crt0_common@8", 21 }, | |
223 | { "_cygwin_noncygwin_dll_entry@12", 30 }, | |
224 | { "impure_ptr", 10 }, | |
225 | { NULL, 0 } | |
226 | }; | |
775cabad NC |
227 | |
228 | /* Do not specify library suffix explicitly, to allow for dllized versions. */ | |
229 | static autofilter_entry_type autofilter_liblist[] = | |
230 | { | |
b044cda1 CW |
231 | { "libgcc.", 7 }, |
232 | { "libstdc++.", 10 }, | |
233 | { "libmingw32.", 11 }, | |
234 | { NULL, 0 } | |
235 | }; | |
775cabad NC |
236 | |
237 | static autofilter_entry_type autofilter_objlist[] = | |
238 | { | |
b044cda1 CW |
239 | { "crt0.o", 6 }, |
240 | { "crt1.o", 6 }, | |
241 | { "crt2.o", 6 }, | |
5b784096 DD |
242 | { "dllcrt1.o", 9 }, |
243 | { "dllcrt2.o", 9 }, | |
59d28a94 | 244 | { "gcrt0.o", 7 }, |
663dd378 DD |
245 | { "gcrt1.o", 7 }, |
246 | { "gcrt2.o", 7 }, | |
b044cda1 CW |
247 | { NULL, 0 } |
248 | }; | |
775cabad NC |
249 | |
250 | static autofilter_entry_type autofilter_symbolprefixlist[] = | |
251 | { | |
252 | /* { "__imp_", 6 }, */ | |
253 | /* Do __imp_ explicitly to save time. */ | |
b044cda1 CW |
254 | { "__rtti_", 7 }, |
255 | { "__builtin_", 10 }, | |
775cabad NC |
256 | /* Don't export symbols specifying internal DLL layout. */ |
257 | { "_head_", 6 }, | |
b044cda1 CW |
258 | { "_fmode", 6 }, |
259 | { "_impure_ptr", 11 }, | |
260 | { "cygwin_attach_dll", 17 }, | |
261 | { "cygwin_premain0", 15 }, | |
262 | { "cygwin_premain1", 15 }, | |
263 | { "cygwin_premain2", 15 }, | |
264 | { "cygwin_premain3", 15 }, | |
265 | { "environ", 7 }, | |
266 | { NULL, 0 } | |
267 | }; | |
775cabad NC |
268 | |
269 | static autofilter_entry_type autofilter_symbolsuffixlist[] = | |
270 | { | |
b044cda1 CW |
271 | { "_iname", 6 }, |
272 | { NULL, 0 } | |
273 | }; | |
274 | ||
c6c37250 DD |
275 | #define U(str) (pe_details->underscored ? "_" str : str) |
276 | ||
948f9114 AJ |
277 | static int reloc_sort PARAMS ((const void *, const void *)); |
278 | static int pe_export_sort PARAMS ((const void *, const void *)); | |
279 | static int auto_export PARAMS ((bfd *, def_file *, const char *)); | |
280 | static void process_def_file PARAMS ((bfd *, struct bfd_link_info *)); | |
281 | static void build_filler_bfd PARAMS ((int)); | |
282 | static void generate_edata PARAMS ((bfd *, struct bfd_link_info *)); | |
283 | static void fill_exported_offsets PARAMS ((bfd *, struct bfd_link_info *)); | |
284 | static void fill_edata PARAMS ((bfd *, struct bfd_link_info *)); | |
285 | static void generate_reloc PARAMS ((bfd *, struct bfd_link_info *)); | |
286 | static void quoteput PARAMS ((char *, FILE *, int)); | |
287 | static asection *quick_section PARAMS ((bfd *, const char *, int, int)); | |
288 | static void quick_symbol | |
db09f25b AM |
289 | PARAMS ((bfd *, const char *, const char *, const char *, |
290 | asection *, int, int)); | |
948f9114 AJ |
291 | static void quick_reloc PARAMS ((bfd *, int, int, int)); |
292 | static bfd *make_head PARAMS ((bfd *)); | |
293 | static bfd *make_tail PARAMS ((bfd *)); | |
294 | static bfd *make_one PARAMS ((def_file_export *, bfd *)); | |
db09f25b | 295 | static bfd *make_singleton_name_thunk PARAMS ((const char *, bfd *)); |
948f9114 | 296 | static char *make_import_fixup_mark PARAMS ((arelent *)); |
db09f25b AM |
297 | static bfd *make_import_fixup_entry |
298 | PARAMS ((const char *, const char *, const char *, bfd *)); | |
948f9114 AJ |
299 | static unsigned int pe_get16 PARAMS ((bfd *, int)); |
300 | static unsigned int pe_get32 PARAMS ((bfd *, int)); | |
301 | static unsigned int pe_as32 PARAMS ((void *)); | |
302 | ||
c6c37250 DD |
303 | void |
304 | pe_dll_id_target (target) | |
1069dd8d | 305 | const char *target; |
c6c37250 DD |
306 | { |
307 | int i; | |
775cabad | 308 | |
d643799d | 309 | for (i = 0; pe_detail_list[i].target_name; i++) |
9d68bc82 DD |
310 | if (strcmp (pe_detail_list[i].target_name, target) == 0 |
311 | || strcmp (pe_detail_list[i].object_target, target) == 0) | |
c6c37250 | 312 | { |
d643799d | 313 | pe_details = pe_detail_list + i; |
c6c37250 DD |
314 | return; |
315 | } | |
316 | einfo (_("%XUnsupported PEI architecture: %s\n"), target); | |
317 | exit (1); | |
318 | } | |
319 | ||
775cabad NC |
320 | /* Helper functions for qsort. Relocs must be sorted so that we can write |
321 | them out by pages. */ | |
252b5132 | 322 | |
775cabad NC |
323 | typedef struct |
324 | { | |
325 | bfd_vma vma; | |
326 | char type; | |
327 | short extra; | |
328 | } | |
329 | reloc_data_type; | |
c6c37250 | 330 | |
252b5132 RH |
331 | static int |
332 | reloc_sort (va, vb) | |
333 | const void *va, *vb; | |
334 | { | |
c6c37250 DD |
335 | bfd_vma a = ((reloc_data_type *) va)->vma; |
336 | bfd_vma b = ((reloc_data_type *) vb)->vma; | |
775cabad | 337 | |
c6c37250 | 338 | return (a > b) ? 1 : ((a < b) ? -1 : 0); |
252b5132 RH |
339 | } |
340 | ||
341 | static int | |
342 | pe_export_sort (va, vb) | |
343 | const void *va, *vb; | |
344 | { | |
345 | def_file_export *a = (def_file_export *) va; | |
346 | def_file_export *b = (def_file_export *) vb; | |
775cabad | 347 | |
252b5132 RH |
348 | return strcmp (a->name, b->name); |
349 | } | |
350 | ||
775cabad | 351 | /* Read and process the .DEF file. */ |
252b5132 RH |
352 | |
353 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
354 | exported_symbol_sections[i] to tag whether or not the symbol was | |
5cc18311 | 355 | defined, since we can't export symbols we don't have. */ |
252b5132 RH |
356 | |
357 | static bfd_vma *exported_symbol_offsets; | |
358 | static struct sec **exported_symbol_sections; | |
252b5132 RH |
359 | static int export_table_size; |
360 | static int count_exported; | |
361 | static int count_exported_byname; | |
362 | static int count_with_ordinals; | |
363 | static const char *dll_name; | |
364 | static int min_ordinal, max_ordinal; | |
365 | static int *exported_symbols; | |
366 | ||
775cabad NC |
367 | typedef struct exclude_list_struct |
368 | { | |
369 | char *string; | |
370 | struct exclude_list_struct *next; | |
371 | } | |
372 | exclude_list_struct; | |
86b1cc60 | 373 | |
252b5132 RH |
374 | static struct exclude_list_struct *excludes = 0; |
375 | ||
376 | void | |
377 | pe_dll_add_excludes (new_excludes) | |
378 | const char *new_excludes; | |
379 | { | |
380 | char *local_copy; | |
381 | char *exclude_string; | |
382 | ||
383 | local_copy = xstrdup (new_excludes); | |
384 | ||
385 | exclude_string = strtok (local_copy, ",:"); | |
386 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
387 | { | |
388 | struct exclude_list_struct *new_exclude; | |
389 | ||
390 | new_exclude = ((struct exclude_list_struct *) | |
391 | xmalloc (sizeof (struct exclude_list_struct))); | |
392 | new_exclude->string = (char *) xmalloc (strlen (exclude_string) + 1); | |
393 | strcpy (new_exclude->string, exclude_string); | |
394 | new_exclude->next = excludes; | |
395 | excludes = new_exclude; | |
396 | } | |
397 | ||
398 | free (local_copy); | |
399 | } | |
400 | ||
775cabad NC |
401 | /* abfd is a bfd containing n (or NULL) |
402 | It can be used for contextual checks. */ | |
403 | ||
252b5132 | 404 | static int |
b044cda1 CW |
405 | auto_export (abfd, d, n) |
406 | bfd *abfd; | |
252b5132 RH |
407 | def_file *d; |
408 | const char *n; | |
409 | { | |
410 | int i; | |
411 | struct exclude_list_struct *ex; | |
b044cda1 CW |
412 | autofilter_entry_type *afptr; |
413 | ||
775cabad | 414 | /* We should not re-export imported stuff. */ |
b044cda1 CW |
415 | if (strncmp (n, "_imp__", 6) == 0) |
416 | return 0; | |
417 | ||
252b5132 RH |
418 | for (i = 0; i < d->num_exports; i++) |
419 | if (strcmp (d->exports[i].name, n) == 0) | |
420 | return 0; | |
775cabad | 421 | |
252b5132 RH |
422 | if (pe_dll_do_default_excludes) |
423 | { | |
663dd378 | 424 | const char * p; |
775cabad NC |
425 | int len; |
426 | ||
b044cda1 | 427 | if (pe_dll_extra_pe_debug) |
775cabad NC |
428 | printf ("considering exporting: %s, abfd=%p, abfd->my_arc=%p\n", |
429 | n, abfd, abfd->my_archive); | |
b044cda1 CW |
430 | |
431 | /* First of all, make context checks: | |
775cabad | 432 | Don't export anything from libgcc. */ |
b044cda1 CW |
433 | if (abfd && abfd->my_archive) |
434 | { | |
435 | afptr = autofilter_liblist; | |
775cabad | 436 | |
b044cda1 CW |
437 | while (afptr->name) |
438 | { | |
439 | if (strstr (abfd->my_archive->filename, afptr->name)) | |
440 | return 0; | |
441 | afptr++; | |
442 | } | |
443 | } | |
444 | ||
775cabad | 445 | /* Next, exclude symbols from certain startup objects. */ |
775cabad | 446 | |
59d28a94 | 447 | if (abfd && (p = lbasename (abfd->filename))) |
663dd378 DD |
448 | { |
449 | afptr = autofilter_objlist; | |
59d28a94 DD |
450 | while (afptr->name) |
451 | { | |
663dd378 | 452 | if ( strcmp (p, afptr->name) == 0 ) |
59d28a94 DD |
453 | return 0; |
454 | afptr++; | |
663dd378 | 455 | } |
775cabad | 456 | } |
b044cda1 CW |
457 | |
458 | /* Don't try to blindly exclude all symbols | |
459 | that begin with '__'; this was tried and | |
775cabad | 460 | it is too restrictive. */ |
b044cda1 | 461 | |
775cabad | 462 | /* Then, exclude specific symbols. */ |
b044cda1 CW |
463 | afptr = autofilter_symbollist; |
464 | while (afptr->name) | |
465 | { | |
466 | if (strcmp (n, afptr->name) == 0) | |
467 | return 0; | |
775cabad NC |
468 | |
469 | afptr ++; | |
b044cda1 CW |
470 | } |
471 | ||
775cabad | 472 | /* Next, exclude symbols starting with ... */ |
b044cda1 CW |
473 | afptr = autofilter_symbolprefixlist; |
474 | while (afptr->name) | |
475 | { | |
476 | if (strncmp (n, afptr->name, afptr->len) == 0) | |
477 | return 0; | |
775cabad NC |
478 | |
479 | afptr ++; | |
b044cda1 CW |
480 | } |
481 | ||
775cabad NC |
482 | /* Finally, exclude symbols ending with ... */ |
483 | len = strlen (n); | |
484 | afptr = autofilter_symbolsuffixlist; | |
485 | while (afptr->name) | |
486 | { | |
487 | if ((len >= afptr->len) && | |
488 | /* Add 1 to insure match with trailing '\0'. */ | |
489 | strncmp (n + len - afptr->len, afptr->name, | |
490 | afptr->len + 1) == 0) | |
491 | return 0; | |
492 | ||
493 | afptr ++; | |
494 | } | |
252b5132 | 495 | } |
775cabad | 496 | |
252b5132 RH |
497 | for (ex = excludes; ex; ex = ex->next) |
498 | if (strcmp (n, ex->string) == 0) | |
499 | return 0; | |
775cabad | 500 | |
252b5132 RH |
501 | return 1; |
502 | } | |
503 | ||
504 | static void | |
505 | process_def_file (abfd, info) | |
1069dd8d | 506 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
507 | struct bfd_link_info *info; |
508 | { | |
509 | int i, j; | |
510 | struct bfd_link_hash_entry *blhe; | |
511 | bfd *b; | |
512 | struct sec *s; | |
d643799d | 513 | def_file_export *e = 0; |
252b5132 RH |
514 | |
515 | if (!pe_def_file) | |
516 | pe_def_file = def_file_empty (); | |
517 | ||
518 | /* First, run around to all the objects looking for the .drectve | |
86b1cc60 | 519 | sections, and push those into the def file too. */ |
252b5132 RH |
520 | for (b = info->input_bfds; b; b = b->link_next) |
521 | { | |
522 | s = bfd_get_section_by_name (b, ".drectve"); | |
523 | if (s) | |
524 | { | |
525 | int size = bfd_get_section_size_before_reloc (s); | |
526 | char *buf = xmalloc (size); | |
775cabad | 527 | |
252b5132 RH |
528 | bfd_get_section_contents (b, s, buf, 0, size); |
529 | def_file_add_directive (pe_def_file, buf, size); | |
530 | free (buf); | |
531 | } | |
532 | } | |
533 | ||
86b1cc60 | 534 | /* Now, maybe export everything else the default way. */ |
252b5132 RH |
535 | if (pe_dll_export_everything || pe_def_file->num_exports == 0) |
536 | { | |
537 | for (b = info->input_bfds; b; b = b->link_next) | |
538 | { | |
539 | asymbol **symbols; | |
540 | int nsyms, symsize; | |
541 | ||
542 | symsize = bfd_get_symtab_upper_bound (b); | |
543 | symbols = (asymbol **) xmalloc (symsize); | |
544 | nsyms = bfd_canonicalize_symtab (b, symbols); | |
545 | ||
546 | for (j = 0; j < nsyms; j++) | |
547 | { | |
d643799d | 548 | /* We should export symbols which are either global or not |
b044cda1 | 549 | anything at all. (.bss data is the latter) |
775cabad | 550 | We should not export undefined symbols. */ |
b044cda1 CW |
551 | if (symbols[j]->section != &bfd_und_section |
552 | && ((symbols[j]->flags & BSF_GLOBAL) | |
553 | || (symbols[j]->flags == BFD_FORT_COMM_DEFAULT_VALUE))) | |
252b5132 RH |
554 | { |
555 | const char *sn = symbols[j]->name; | |
b044cda1 | 556 | |
775cabad | 557 | /* We should not re-export imported stuff. */ |
b044cda1 CW |
558 | { |
559 | char *name = (char *) xmalloc (strlen (sn) + 2 + 6); | |
560 | sprintf (name, "%s%s", U("_imp_"), sn); | |
775cabad | 561 | |
b044cda1 CW |
562 | blhe = bfd_link_hash_lookup (info->hash, name, |
563 | false, false, false); | |
564 | free (name); | |
565 | ||
566 | if (blhe && blhe->type == bfd_link_hash_defined) | |
567 | continue; | |
568 | } | |
569 | ||
252b5132 RH |
570 | if (*sn == '_') |
571 | sn++; | |
775cabad | 572 | |
b044cda1 CW |
573 | if (auto_export (b, pe_def_file, sn)) |
574 | { | |
575 | def_file_export *p; | |
576 | p=def_file_add_export (pe_def_file, sn, 0, -1); | |
775cabad | 577 | /* Fill data flag properly, from dlltool.c. */ |
b044cda1 CW |
578 | p->flag_data = !(symbols[j]->flags & BSF_FUNCTION); |
579 | } | |
252b5132 RH |
580 | } |
581 | } | |
582 | } | |
583 | } | |
584 | ||
585 | #undef NE | |
586 | #define NE pe_def_file->num_exports | |
587 | ||
86b1cc60 | 588 | /* Canonicalize the export list. */ |
252b5132 RH |
589 | if (pe_dll_kill_ats) |
590 | { | |
591 | for (i = 0; i < NE; i++) | |
592 | { | |
593 | if (strchr (pe_def_file->exports[i].name, '@')) | |
594 | { | |
86b1cc60 KH |
595 | /* This will preserve internal_name, which may have been |
596 | pointing to the same memory as name, or might not | |
597 | have. */ | |
252b5132 | 598 | char *tmp = xstrdup (pe_def_file->exports[i].name); |
775cabad | 599 | |
252b5132 RH |
600 | *(strchr (tmp, '@')) = 0; |
601 | pe_def_file->exports[i].name = tmp; | |
602 | } | |
603 | } | |
604 | } | |
605 | ||
606 | if (pe_dll_stdcall_aliases) | |
607 | { | |
608 | for (i = 0; i < NE; i++) | |
609 | { | |
610 | if (strchr (pe_def_file->exports[i].name, '@')) | |
611 | { | |
612 | char *tmp = xstrdup (pe_def_file->exports[i].name); | |
775cabad | 613 | |
252b5132 | 614 | *(strchr (tmp, '@')) = 0; |
b044cda1 | 615 | if (auto_export (NULL, pe_def_file, tmp)) |
252b5132 | 616 | def_file_add_export (pe_def_file, tmp, |
b044cda1 CW |
617 | pe_def_file->exports[i].internal_name, |
618 | -1); | |
252b5132 RH |
619 | else |
620 | free (tmp); | |
621 | } | |
622 | } | |
623 | } | |
624 | ||
86b1cc60 KH |
625 | /* Convenience, but watch out for it changing. */ |
626 | e = pe_def_file->exports; | |
252b5132 RH |
627 | |
628 | exported_symbol_offsets = (bfd_vma *) xmalloc (NE * sizeof (bfd_vma)); | |
629 | exported_symbol_sections = (struct sec **) xmalloc (NE * sizeof (struct sec *)); | |
630 | ||
631 | memset (exported_symbol_sections, 0, NE * sizeof (struct sec *)); | |
632 | max_ordinal = 0; | |
633 | min_ordinal = 65536; | |
634 | count_exported = 0; | |
635 | count_exported_byname = 0; | |
636 | count_with_ordinals = 0; | |
637 | ||
638 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), pe_export_sort); | |
639 | for (i = 0, j = 0; i < NE; i++) | |
640 | { | |
641 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
642 | { | |
870df5dc | 643 | /* This is a duplicate. */ |
252b5132 RH |
644 | if (e[j - 1].ordinal != -1 |
645 | && e[i].ordinal != -1 | |
646 | && e[j - 1].ordinal != e[i].ordinal) | |
647 | { | |
870df5dc NC |
648 | if (pe_dll_warn_dup_exports) |
649 | /* xgettext:c-format */ | |
486e80e2 | 650 | einfo (_("%XError, duplicate EXPORT with ordinals: %s (%d vs %d)\n"), |
870df5dc | 651 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); |
252b5132 RH |
652 | } |
653 | else | |
654 | { | |
870df5dc NC |
655 | if (pe_dll_warn_dup_exports) |
656 | /* xgettext:c-format */ | |
657 | einfo (_("Warning, duplicate EXPORT: %s\n"), | |
658 | e[j - 1].name); | |
252b5132 | 659 | } |
775cabad | 660 | |
486e80e2 | 661 | if (e[i].ordinal != -1) |
252b5132 RH |
662 | e[j - 1].ordinal = e[i].ordinal; |
663 | e[j - 1].flag_private |= e[i].flag_private; | |
664 | e[j - 1].flag_constant |= e[i].flag_constant; | |
665 | e[j - 1].flag_noname |= e[i].flag_noname; | |
666 | e[j - 1].flag_data |= e[i].flag_data; | |
667 | } | |
668 | else | |
669 | { | |
670 | if (i != j) | |
671 | e[j] = e[i]; | |
672 | j++; | |
673 | } | |
674 | } | |
675 | pe_def_file->num_exports = j; /* == NE */ | |
676 | ||
677 | for (i = 0; i < NE; i++) | |
678 | { | |
679 | char *name = (char *) xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); | |
775cabad | 680 | |
c6c37250 DD |
681 | if (pe_details->underscored) |
682 | { | |
683 | *name = '_'; | |
684 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
685 | } | |
686 | else | |
687 | strcpy (name, pe_def_file->exports[i].internal_name); | |
252b5132 RH |
688 | |
689 | blhe = bfd_link_hash_lookup (info->hash, | |
690 | name, | |
691 | false, false, true); | |
692 | ||
8a5b676c | 693 | if (blhe |
d643799d | 694 | && (blhe->type == bfd_link_hash_defined |
8a5b676c | 695 | || (blhe->type == bfd_link_hash_common))) |
252b5132 RH |
696 | { |
697 | count_exported++; | |
698 | if (!pe_def_file->exports[i].flag_noname) | |
699 | count_exported_byname++; | |
8a5b676c DD |
700 | |
701 | /* Only fill in the sections. The actual offsets are computed | |
702 | in fill_exported_offsets() after common symbols are laid | |
703 | out. */ | |
d643799d | 704 | if (blhe->type == bfd_link_hash_defined) |
8a5b676c DD |
705 | exported_symbol_sections[i] = blhe->u.def.section; |
706 | else | |
707 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
5cc18311 | 708 | |
252b5132 RH |
709 | if (pe_def_file->exports[i].ordinal != -1) |
710 | { | |
711 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
712 | max_ordinal = pe_def_file->exports[i].ordinal; | |
713 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
714 | min_ordinal = pe_def_file->exports[i].ordinal; | |
715 | count_with_ordinals++; | |
716 | } | |
717 | } | |
718 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
719 | { | |
720 | /* xgettext:c-format */ | |
721 | einfo (_("%XCannot export %s: symbol not defined\n"), | |
722 | pe_def_file->exports[i].internal_name); | |
723 | } | |
724 | else if (blhe) | |
725 | { | |
726 | /* xgettext:c-format */ | |
727 | einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"), | |
728 | pe_def_file->exports[i].internal_name, | |
729 | blhe->type, bfd_link_hash_defined); | |
730 | } | |
731 | else | |
732 | { | |
733 | /* xgettext:c-format */ | |
734 | einfo (_("%XCannot export %s: symbol not found\n"), | |
735 | pe_def_file->exports[i].internal_name); | |
736 | } | |
737 | free (name); | |
738 | } | |
739 | } | |
740 | ||
775cabad | 741 | /* Build the bfd that will contain .edata and .reloc sections. */ |
252b5132 RH |
742 | |
743 | static void | |
c6c37250 DD |
744 | build_filler_bfd (include_edata) |
745 | int include_edata; | |
252b5132 RH |
746 | { |
747 | lang_input_statement_type *filler_file; | |
748 | filler_file = lang_add_input_file ("dll stuff", | |
749 | lang_input_file_is_fake_enum, | |
750 | NULL); | |
751 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", output_bfd); | |
752 | if (filler_bfd == NULL | |
753 | || !bfd_set_arch_mach (filler_bfd, | |
754 | bfd_get_arch (output_bfd), | |
755 | bfd_get_mach (output_bfd))) | |
756 | { | |
757 | einfo ("%X%P: can not create BFD %E\n"); | |
758 | return; | |
759 | } | |
760 | ||
c6c37250 | 761 | if (include_edata) |
252b5132 | 762 | { |
c6c37250 DD |
763 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
764 | if (edata_s == NULL | |
765 | || !bfd_set_section_flags (filler_bfd, edata_s, | |
766 | (SEC_HAS_CONTENTS | |
767 | | SEC_ALLOC | |
768 | | SEC_LOAD | |
769 | | SEC_KEEP | |
770 | | SEC_IN_MEMORY))) | |
771 | { | |
772 | einfo ("%X%P: can not create .edata section: %E\n"); | |
773 | return; | |
774 | } | |
775 | bfd_set_section_size (filler_bfd, edata_s, edata_sz); | |
252b5132 | 776 | } |
252b5132 RH |
777 | |
778 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
779 | if (reloc_s == NULL | |
780 | || !bfd_set_section_flags (filler_bfd, reloc_s, | |
781 | (SEC_HAS_CONTENTS | |
782 | | SEC_ALLOC | |
783 | | SEC_LOAD | |
784 | | SEC_KEEP | |
785 | | SEC_IN_MEMORY))) | |
786 | { | |
787 | einfo ("%X%P: can not create .reloc section: %E\n"); | |
788 | return; | |
789 | } | |
775cabad | 790 | |
252b5132 RH |
791 | bfd_set_section_size (filler_bfd, reloc_s, 0); |
792 | ||
793 | ldlang_add_file (filler_file); | |
794 | } | |
795 | ||
775cabad | 796 | /* Gather all the exported symbols and build the .edata section. */ |
252b5132 RH |
797 | |
798 | static void | |
799 | generate_edata (abfd, info) | |
800 | bfd *abfd; | |
1069dd8d | 801 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
802 | { |
803 | int i, next_ordinal; | |
804 | int name_table_size = 0; | |
805 | const char *dlnp; | |
806 | ||
807 | /* First, we need to know how many exported symbols there are, | |
5cc18311 | 808 | and what the range of ordinals is. */ |
252b5132 | 809 | if (pe_def_file->name) |
775cabad | 810 | dll_name = pe_def_file->name; |
252b5132 RH |
811 | else |
812 | { | |
813 | dll_name = abfd->filename; | |
775cabad | 814 | |
252b5132 | 815 | for (dlnp = dll_name; *dlnp; dlnp++) |
775cabad NC |
816 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') |
817 | dll_name = dlnp + 1; | |
252b5132 RH |
818 | } |
819 | ||
820 | if (count_with_ordinals && max_ordinal > count_exported) | |
821 | { | |
822 | if (min_ordinal > max_ordinal - count_exported + 1) | |
823 | min_ordinal = max_ordinal - count_exported + 1; | |
824 | } | |
825 | else | |
826 | { | |
827 | min_ordinal = 1; | |
828 | max_ordinal = count_exported; | |
829 | } | |
252b5132 | 830 | |
775cabad | 831 | export_table_size = max_ordinal - min_ordinal + 1; |
252b5132 RH |
832 | exported_symbols = (int *) xmalloc (export_table_size * sizeof (int)); |
833 | for (i = 0; i < export_table_size; i++) | |
834 | exported_symbols[i] = -1; | |
835 | ||
86b1cc60 | 836 | /* Now we need to assign ordinals to those that don't have them. */ |
252b5132 RH |
837 | for (i = 0; i < NE; i++) |
838 | { | |
839 | if (exported_symbol_sections[i]) | |
840 | { | |
841 | if (pe_def_file->exports[i].ordinal != -1) | |
842 | { | |
843 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
844 | int pi = exported_symbols[ei]; | |
775cabad | 845 | |
252b5132 RH |
846 | if (pi != -1) |
847 | { | |
848 | /* xgettext:c-format */ | |
486e80e2 | 849 | einfo (_("%XError, ordinal used twice: %d (%s vs %s)\n"), |
252b5132 RH |
850 | pe_def_file->exports[i].ordinal, |
851 | pe_def_file->exports[i].name, | |
852 | pe_def_file->exports[pi].name); | |
853 | } | |
854 | exported_symbols[ei] = i; | |
855 | } | |
856 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
857 | } | |
858 | } | |
859 | ||
860 | next_ordinal = min_ordinal; | |
861 | for (i = 0; i < NE; i++) | |
862 | if (exported_symbol_sections[i]) | |
863 | if (pe_def_file->exports[i].ordinal == -1) | |
864 | { | |
865 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
775cabad NC |
866 | next_ordinal ++; |
867 | ||
252b5132 RH |
868 | exported_symbols[next_ordinal - min_ordinal] = i; |
869 | pe_def_file->exports[i].ordinal = next_ordinal; | |
870 | } | |
871 | ||
86b1cc60 | 872 | /* OK, now we can allocate some memory. */ |
775cabad NC |
873 | edata_sz = (40 /* directory */ |
874 | + 4 * export_table_size /* addresses */ | |
252b5132 RH |
875 | + 4 * count_exported_byname /* name ptrs */ |
876 | + 2 * count_exported_byname /* ordinals */ | |
877 | + name_table_size + strlen (dll_name) + 1); | |
878 | } | |
879 | ||
8a5b676c DD |
880 | /* Fill the exported symbol offsets. The preliminary work has already |
881 | been done in process_def_file(). */ | |
882 | ||
883 | static void | |
884 | fill_exported_offsets (abfd, info) | |
f0c87f88 | 885 | bfd *abfd ATTRIBUTE_UNUSED; |
8a5b676c DD |
886 | struct bfd_link_info *info; |
887 | { | |
f0c87f88 | 888 | int i; |
8a5b676c | 889 | struct bfd_link_hash_entry *blhe; |
5cc18311 | 890 | |
8a5b676c DD |
891 | for (i = 0; i < pe_def_file->num_exports; i++) |
892 | { | |
893 | char *name = (char *) xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); | |
775cabad | 894 | |
8a5b676c DD |
895 | if (pe_details->underscored) |
896 | { | |
897 | *name = '_'; | |
898 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
899 | } | |
900 | else | |
901 | strcpy (name, pe_def_file->exports[i].internal_name); | |
902 | ||
903 | blhe = bfd_link_hash_lookup (info->hash, | |
904 | name, | |
905 | false, false, true); | |
906 | ||
907 | if (blhe && (blhe->type == bfd_link_hash_defined)) | |
775cabad NC |
908 | exported_symbol_offsets[i] = blhe->u.def.value; |
909 | ||
8a5b676c DD |
910 | free (name); |
911 | } | |
912 | } | |
913 | ||
252b5132 RH |
914 | static void |
915 | fill_edata (abfd, info) | |
916 | bfd *abfd; | |
1069dd8d | 917 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
252b5132 RH |
918 | { |
919 | int i, hint; | |
920 | unsigned char *edirectory; | |
921 | unsigned long *eaddresses; | |
922 | unsigned long *enameptrs; | |
923 | unsigned short *eordinals; | |
924 | unsigned char *enamestr; | |
925 | time_t now; | |
926 | ||
927 | time (&now); | |
928 | ||
929 | edata_d = (unsigned char *) xmalloc (edata_sz); | |
930 | ||
86b1cc60 | 931 | /* Note use of array pointer math here. */ |
252b5132 RH |
932 | edirectory = edata_d; |
933 | eaddresses = (unsigned long *) (edata_d + 40); | |
934 | enameptrs = eaddresses + export_table_size; | |
935 | eordinals = (unsigned short *) (enameptrs + count_exported_byname); | |
936 | enamestr = (char *) (eordinals + count_exported_byname); | |
937 | ||
938 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) + edata_s->output_section->vma - image_base) | |
939 | ||
c2a94a7a | 940 | memset (edata_d, 0, edata_sz); |
252b5132 RH |
941 | bfd_put_32 (abfd, now, edata_d + 4); |
942 | if (pe_def_file->version_major != -1) | |
943 | { | |
944 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
945 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
946 | } | |
775cabad | 947 | |
252b5132 RH |
948 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); |
949 | strcpy (enamestr, dll_name); | |
950 | enamestr += strlen (enamestr) + 1; | |
951 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
952 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
953 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
954 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
955 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
956 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
957 | ||
8a5b676c DD |
958 | fill_exported_offsets (abfd, info); |
959 | ||
86b1cc60 | 960 | /* Ok, now for the filling in part. */ |
252b5132 RH |
961 | hint = 0; |
962 | for (i = 0; i < export_table_size; i++) | |
963 | { | |
964 | int s = exported_symbols[i]; | |
775cabad | 965 | |
252b5132 RH |
966 | if (s != -1) |
967 | { | |
968 | struct sec *ssec = exported_symbol_sections[s]; | |
969 | unsigned long srva = (exported_symbol_offsets[s] | |
970 | + ssec->output_section->vma | |
971 | + ssec->output_offset); | |
45b1f63c | 972 | int ord = pe_def_file->exports[s].ordinal; |
252b5132 | 973 | |
45b1f63c DD |
974 | bfd_put_32 (abfd, srva - image_base, |
975 | (void *) (eaddresses + ord - min_ordinal)); | |
775cabad | 976 | |
252b5132 RH |
977 | if (!pe_def_file->exports[s].flag_noname) |
978 | { | |
979 | char *ename = pe_def_file->exports[s].name; | |
980 | bfd_put_32 (abfd, ERVA (enamestr), (void *) enameptrs); | |
45b1f63c | 981 | enameptrs++; |
252b5132 RH |
982 | strcpy (enamestr, ename); |
983 | enamestr += strlen (enamestr) + 1; | |
45b1f63c DD |
984 | bfd_put_16 (abfd, ord - min_ordinal, (void *) eordinals); |
985 | eordinals++; | |
252b5132 RH |
986 | pe_def_file->exports[s].hint = hint++; |
987 | } | |
252b5132 RH |
988 | } |
989 | } | |
990 | } | |
991 | ||
b044cda1 CW |
992 | |
993 | static struct sec *current_sec; | |
994 | ||
995 | void | |
996 | pe_walk_relocs_of_symbol (info, name, cb) | |
997 | struct bfd_link_info *info; | |
db09f25b | 998 | const char *name; |
0d888aac | 999 | int (*cb) (arelent *, asection *); |
b044cda1 CW |
1000 | { |
1001 | bfd *b; | |
0d888aac | 1002 | asection *s; |
b044cda1 CW |
1003 | |
1004 | for (b = info->input_bfds; b; b = b->link_next) | |
1005 | { | |
775cabad NC |
1006 | asymbol **symbols; |
1007 | int nsyms, symsize; | |
1008 | ||
1009 | symsize = bfd_get_symtab_upper_bound (b); | |
1010 | symbols = (asymbol **) xmalloc (symsize); | |
1011 | nsyms = bfd_canonicalize_symtab (b, symbols); | |
b044cda1 CW |
1012 | |
1013 | for (s = b->sections; s; s = s->next) | |
1014 | { | |
775cabad NC |
1015 | arelent **relocs; |
1016 | int relsize, nrelocs, i; | |
b044cda1 CW |
1017 | int flags = bfd_get_section_flags (b, s); |
1018 | ||
775cabad | 1019 | /* Skip discarded linkonce sections. */ |
b044cda1 CW |
1020 | if (flags & SEC_LINK_ONCE |
1021 | && s->output_section == bfd_abs_section_ptr) | |
1022 | continue; | |
1023 | ||
0d888aac | 1024 | current_sec = s; |
b044cda1 | 1025 | |
b044cda1 CW |
1026 | relsize = bfd_get_reloc_upper_bound (b, s); |
1027 | relocs = (arelent **) xmalloc ((size_t) relsize); | |
1028 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); | |
1029 | ||
1030 | for (i = 0; i < nrelocs; i++) | |
1031 | { | |
1032 | struct symbol_cache_entry *sym = *relocs[i]->sym_ptr_ptr; | |
775cabad NC |
1033 | |
1034 | if (!strcmp (name, sym->name)) | |
1035 | cb (relocs[i], s); | |
b044cda1 | 1036 | } |
775cabad | 1037 | |
b044cda1 | 1038 | free (relocs); |
775cabad | 1039 | |
b044cda1 CW |
1040 | /* Warning: the allocated symbols are remembered in BFD and reused |
1041 | later, so don't free them! */ | |
1042 | /* free (symbols); */ | |
1043 | } | |
1044 | } | |
1045 | } | |
1046 | ||
775cabad | 1047 | /* Gather all the relocations and build the .reloc section. */ |
252b5132 RH |
1048 | |
1049 | static void | |
1050 | generate_reloc (abfd, info) | |
1051 | bfd *abfd; | |
1052 | struct bfd_link_info *info; | |
1053 | { | |
1054 | ||
86b1cc60 | 1055 | /* For .reloc stuff. */ |
c6c37250 | 1056 | reloc_data_type *reloc_data; |
252b5132 RH |
1057 | int total_relocs = 0; |
1058 | int i; | |
1059 | unsigned long sec_page = (unsigned long) (-1); | |
1060 | unsigned long page_ptr, page_count; | |
1061 | int bi; | |
1062 | bfd *b; | |
1063 | struct sec *s; | |
1064 | ||
1065 | total_relocs = 0; | |
1066 | for (b = info->input_bfds; b; b = b->link_next) | |
1067 | for (s = b->sections; s; s = s->next) | |
1068 | total_relocs += s->reloc_count; | |
1069 | ||
b044cda1 CW |
1070 | reloc_data = |
1071 | (reloc_data_type *) xmalloc (total_relocs * sizeof (reloc_data_type)); | |
252b5132 RH |
1072 | |
1073 | total_relocs = 0; | |
1074 | bi = 0; | |
1075 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next) | |
1076 | { | |
1077 | arelent **relocs; | |
1078 | int relsize, nrelocs, i; | |
1079 | ||
1080 | for (s = b->sections; s; s = s->next) | |
1081 | { | |
1082 | unsigned long sec_vma = s->output_section->vma + s->output_offset; | |
1083 | asymbol **symbols; | |
1084 | int nsyms, symsize; | |
1085 | ||
86b1cc60 | 1086 | /* If it's not loaded, we don't need to relocate it this way. */ |
252b5132 RH |
1087 | if (!(s->output_section->flags & SEC_LOAD)) |
1088 | continue; | |
1089 | ||
1090 | /* I don't know why there would be a reloc for these, but I've | |
86b1cc60 | 1091 | seen it happen - DJ */ |
252b5132 RH |
1092 | if (s->output_section == &bfd_abs_section) |
1093 | continue; | |
1094 | ||
1095 | if (s->output_section->vma == 0) | |
1096 | { | |
86b1cc60 | 1097 | /* Huh? Shouldn't happen, but punt if it does. */ |
252b5132 RH |
1098 | einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n", |
1099 | s->output_section->name, s->output_section->index, | |
1100 | s->output_section->flags); | |
1101 | continue; | |
1102 | } | |
1103 | ||
1104 | symsize = bfd_get_symtab_upper_bound (b); | |
1105 | symbols = (asymbol **) xmalloc (symsize); | |
1106 | nsyms = bfd_canonicalize_symtab (b, symbols); | |
1107 | ||
1108 | relsize = bfd_get_reloc_upper_bound (b, s); | |
1109 | relocs = (arelent **) xmalloc ((size_t) relsize); | |
1110 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); | |
1111 | ||
1112 | for (i = 0; i < nrelocs; i++) | |
1113 | { | |
b044cda1 CW |
1114 | if (pe_dll_extra_pe_debug) |
1115 | { | |
1116 | struct symbol_cache_entry *sym = *relocs[i]->sym_ptr_ptr; | |
1117 | printf("rel: %s\n",sym->name); | |
1118 | } | |
252b5132 | 1119 | if (!relocs[i]->howto->pc_relative |
c6c37250 | 1120 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 1121 | { |
c6c37250 DD |
1122 | bfd_vma sym_vma; |
1123 | struct symbol_cache_entry *sym = *relocs[i]->sym_ptr_ptr; | |
775cabad | 1124 | |
c6c37250 DD |
1125 | sym_vma = (relocs[i]->addend |
1126 | + sym->value | |
1127 | + sym->section->vma | |
1128 | + sym->section->output_offset | |
1129 | + sym->section->output_section->vma); | |
1130 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; | |
5cc18311 | 1131 | |
344a211f | 1132 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) |
5cc18311 | 1133 | |
344a211f NC |
1134 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, |
1135 | relocs[i]->howto->rightshift) | |
252b5132 | 1136 | { |
344a211f | 1137 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
1138 | reloc_data[total_relocs].type = 3; |
1139 | total_relocs++; | |
252b5132 | 1140 | break; |
344a211f NC |
1141 | case BITS_AND_SHIFT (16, 0): |
1142 | reloc_data[total_relocs].type = 2; | |
1143 | total_relocs++; | |
1144 | break; | |
1145 | case BITS_AND_SHIFT (16, 16): | |
1146 | reloc_data[total_relocs].type = 4; | |
86b1cc60 KH |
1147 | /* FIXME: we can't know the symbol's right value |
1148 | yet, but we probably can safely assume that | |
1149 | CE will relocate us in 64k blocks, so leaving | |
1150 | it zero is safe. */ | |
344a211f NC |
1151 | reloc_data[total_relocs].extra = 0; |
1152 | total_relocs++; | |
1153 | break; | |
1154 | case BITS_AND_SHIFT (26, 2): | |
1155 | reloc_data[total_relocs].type = 5; | |
1156 | total_relocs++; | |
1157 | break; | |
252b5132 RH |
1158 | default: |
1159 | /* xgettext:c-format */ | |
1160 | einfo (_("%XError: %d-bit reloc in dll\n"), | |
1161 | relocs[i]->howto->bitsize); | |
1162 | break; | |
1163 | } | |
1164 | } | |
1165 | } | |
1166 | free (relocs); | |
86b1cc60 KH |
1167 | /* Warning: the allocated symbols are remembered in BFD and |
1168 | reused later, so don't free them! */ | |
7bfd51a3 KH |
1169 | #if 0 |
1170 | free (symbol); | |
1171 | #endif | |
252b5132 RH |
1172 | } |
1173 | } | |
1174 | ||
1175 | /* At this point, we have total_relocs relocation addresses in | |
1176 | reloc_addresses, which are all suitable for the .reloc section. | |
5cc18311 | 1177 | We must now create the new sections. */ |
c6c37250 | 1178 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
1179 | |
1180 | for (i = 0; i < total_relocs; i++) | |
1181 | { | |
c6c37250 | 1182 | unsigned long this_page = (reloc_data[i].vma >> 12); |
5cc18311 | 1183 | |
252b5132 RH |
1184 | if (this_page != sec_page) |
1185 | { | |
775cabad | 1186 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
252b5132 RH |
1187 | reloc_sz += 8; |
1188 | sec_page = this_page; | |
1189 | } | |
5cc18311 | 1190 | |
252b5132 | 1191 | reloc_sz += 2; |
5cc18311 | 1192 | |
344a211f NC |
1193 | if (reloc_data[i].type == 4) |
1194 | reloc_sz += 2; | |
252b5132 | 1195 | } |
775cabad NC |
1196 | |
1197 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ | |
252b5132 | 1198 | reloc_d = (unsigned char *) xmalloc (reloc_sz); |
252b5132 RH |
1199 | sec_page = (unsigned long) (-1); |
1200 | reloc_sz = 0; | |
1201 | page_ptr = (unsigned long) (-1); | |
1202 | page_count = 0; | |
775cabad | 1203 | |
252b5132 RH |
1204 | for (i = 0; i < total_relocs; i++) |
1205 | { | |
c6c37250 | 1206 | unsigned long rva = reloc_data[i].vma - image_base; |
252b5132 | 1207 | unsigned long this_page = (rva & ~0xfff); |
775cabad | 1208 | |
252b5132 RH |
1209 | if (this_page != sec_page) |
1210 | { | |
1211 | while (reloc_sz & 3) | |
1212 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1213 | |
252b5132 RH |
1214 | if (page_ptr != (unsigned long) (-1)) |
1215 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); | |
775cabad | 1216 | |
252b5132 RH |
1217 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); |
1218 | page_ptr = reloc_sz; | |
1219 | reloc_sz += 8; | |
1220 | sec_page = this_page; | |
1221 | page_count = 0; | |
1222 | } | |
775cabad | 1223 | |
d643799d | 1224 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type << 12), |
c6c37250 | 1225 | reloc_d + reloc_sz); |
252b5132 | 1226 | reloc_sz += 2; |
775cabad | 1227 | |
c6c37250 DD |
1228 | if (reloc_data[i].type == 4) |
1229 | { | |
1230 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
1231 | reloc_sz += 2; | |
1232 | } | |
775cabad | 1233 | |
252b5132 RH |
1234 | page_count++; |
1235 | } | |
775cabad | 1236 | |
252b5132 RH |
1237 | while (reloc_sz & 3) |
1238 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1239 | |
252b5132 RH |
1240 | if (page_ptr != (unsigned long) (-1)) |
1241 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); | |
775cabad | 1242 | |
252b5132 RH |
1243 | while (reloc_sz < reloc_s->_raw_size) |
1244 | reloc_d[reloc_sz++] = 0; | |
1245 | } | |
1246 | ||
775cabad NC |
1247 | /* Given the exiting def_file structure, print out a .DEF file that |
1248 | corresponds to it. */ | |
252b5132 RH |
1249 | |
1250 | static void | |
1251 | quoteput (s, f, needs_quotes) | |
1252 | char *s; | |
d643799d | 1253 | FILE *f; |
252b5132 RH |
1254 | int needs_quotes; |
1255 | { | |
1256 | char *cp; | |
775cabad | 1257 | |
252b5132 RH |
1258 | for (cp = s; *cp; cp++) |
1259 | if (*cp == '\'' | |
1260 | || *cp == '"' | |
1261 | || *cp == '\\' | |
3882b010 | 1262 | || ISSPACE (*cp) |
252b5132 RH |
1263 | || *cp == ',' |
1264 | || *cp == ';') | |
1265 | needs_quotes = 1; | |
775cabad | 1266 | |
252b5132 RH |
1267 | if (needs_quotes) |
1268 | { | |
1269 | putc ('"', f); | |
775cabad | 1270 | |
252b5132 RH |
1271 | while (*s) |
1272 | { | |
1273 | if (*s == '"' || *s == '\\') | |
1274 | putc ('\\', f); | |
775cabad | 1275 | |
252b5132 RH |
1276 | putc (*s, f); |
1277 | s++; | |
1278 | } | |
775cabad | 1279 | |
252b5132 RH |
1280 | putc ('"', f); |
1281 | } | |
1282 | else | |
1283 | fputs (s, f); | |
1284 | } | |
1285 | ||
1286 | void | |
1287 | pe_dll_generate_def_file (pe_out_def_filename) | |
1069dd8d | 1288 | const char *pe_out_def_filename; |
252b5132 RH |
1289 | { |
1290 | int i; | |
1291 | FILE *out = fopen (pe_out_def_filename, "w"); | |
775cabad | 1292 | |
252b5132 | 1293 | if (out == NULL) |
775cabad NC |
1294 | /* xgettext:c-format */ |
1295 | einfo (_("%s: Can't open output def file %s\n"), | |
1296 | program_name, pe_out_def_filename); | |
252b5132 RH |
1297 | |
1298 | if (pe_def_file) | |
1299 | { | |
1300 | if (pe_def_file->name) | |
1301 | { | |
1302 | if (pe_def_file->is_dll) | |
1303 | fprintf (out, "LIBRARY "); | |
1304 | else | |
1305 | fprintf (out, "NAME "); | |
775cabad | 1306 | |
252b5132 | 1307 | quoteput (pe_def_file->name, out, 1); |
775cabad | 1308 | |
252b5132 RH |
1309 | if (pe_data (output_bfd)->pe_opthdr.ImageBase) |
1310 | fprintf (out, " BASE=0x%lx", | |
1311 | (unsigned long) pe_data (output_bfd)->pe_opthdr.ImageBase); | |
1312 | fprintf (out, "\n"); | |
1313 | } | |
1314 | ||
1315 | if (pe_def_file->description) | |
1316 | { | |
1317 | fprintf (out, "DESCRIPTION "); | |
1318 | quoteput (pe_def_file->description, out, 1); | |
1319 | fprintf (out, "\n"); | |
1320 | } | |
1321 | ||
1322 | if (pe_def_file->version_minor != -1) | |
1323 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
1324 | pe_def_file->version_minor); | |
1325 | else if (pe_def_file->version_major != -1) | |
1326 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
1327 | ||
1328 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
1329 | fprintf (out, "\n"); | |
1330 | ||
1331 | if (pe_def_file->stack_commit != -1) | |
1332 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
1333 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
1334 | else if (pe_def_file->stack_reserve != -1) | |
1335 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
775cabad | 1336 | |
252b5132 RH |
1337 | if (pe_def_file->heap_commit != -1) |
1338 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1339 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1340 | else if (pe_def_file->heap_reserve != -1) | |
1341 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1342 | ||
1343 | if (pe_def_file->num_section_defs > 0) | |
1344 | { | |
1345 | fprintf (out, "\nSECTIONS\n\n"); | |
775cabad | 1346 | |
252b5132 RH |
1347 | for (i = 0; i < pe_def_file->num_section_defs; i++) |
1348 | { | |
1349 | fprintf (out, " "); | |
1350 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
775cabad | 1351 | |
252b5132 RH |
1352 | if (pe_def_file->section_defs[i].class) |
1353 | { | |
1354 | fprintf (out, " CLASS "); | |
1355 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1356 | } | |
775cabad | 1357 | |
252b5132 RH |
1358 | if (pe_def_file->section_defs[i].flag_read) |
1359 | fprintf (out, " READ"); | |
775cabad | 1360 | |
252b5132 RH |
1361 | if (pe_def_file->section_defs[i].flag_write) |
1362 | fprintf (out, " WRITE"); | |
775cabad | 1363 | |
252b5132 RH |
1364 | if (pe_def_file->section_defs[i].flag_execute) |
1365 | fprintf (out, " EXECUTE"); | |
775cabad | 1366 | |
252b5132 RH |
1367 | if (pe_def_file->section_defs[i].flag_shared) |
1368 | fprintf (out, " SHARED"); | |
775cabad | 1369 | |
252b5132 RH |
1370 | fprintf (out, "\n"); |
1371 | } | |
1372 | } | |
1373 | ||
1374 | if (pe_def_file->num_exports > 0) | |
1375 | { | |
b044cda1 | 1376 | fprintf (out, "EXPORTS\n"); |
775cabad | 1377 | |
252b5132 RH |
1378 | for (i = 0; i < pe_def_file->num_exports; i++) |
1379 | { | |
1380 | def_file_export *e = pe_def_file->exports + i; | |
1381 | fprintf (out, " "); | |
1382 | quoteput (e->name, out, 0); | |
775cabad | 1383 | |
252b5132 RH |
1384 | if (e->internal_name && strcmp (e->internal_name, e->name)) |
1385 | { | |
1386 | fprintf (out, " = "); | |
1387 | quoteput (e->internal_name, out, 0); | |
1388 | } | |
775cabad | 1389 | |
252b5132 RH |
1390 | if (e->ordinal != -1) |
1391 | fprintf (out, " @%d", e->ordinal); | |
775cabad | 1392 | |
252b5132 RH |
1393 | if (e->flag_private) |
1394 | fprintf (out, " PRIVATE"); | |
775cabad | 1395 | |
252b5132 RH |
1396 | if (e->flag_constant) |
1397 | fprintf (out, " CONSTANT"); | |
775cabad | 1398 | |
252b5132 RH |
1399 | if (e->flag_noname) |
1400 | fprintf (out, " NONAME"); | |
775cabad | 1401 | |
252b5132 RH |
1402 | if (e->flag_data) |
1403 | fprintf (out, " DATA"); | |
1404 | ||
1405 | fprintf (out, "\n"); | |
1406 | } | |
1407 | } | |
1408 | ||
1409 | if (pe_def_file->num_imports > 0) | |
1410 | { | |
1411 | fprintf (out, "\nIMPORTS\n\n"); | |
775cabad | 1412 | |
252b5132 RH |
1413 | for (i = 0; i < pe_def_file->num_imports; i++) |
1414 | { | |
1415 | def_file_import *im = pe_def_file->imports + i; | |
1416 | fprintf (out, " "); | |
775cabad | 1417 | |
252b5132 RH |
1418 | if (im->internal_name |
1419 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1420 | { | |
1421 | quoteput (im->internal_name, out, 0); | |
1422 | fprintf (out, " = "); | |
1423 | } | |
775cabad | 1424 | |
252b5132 RH |
1425 | quoteput (im->module->name, out, 0); |
1426 | fprintf (out, "."); | |
775cabad | 1427 | |
252b5132 RH |
1428 | if (im->name) |
1429 | quoteput (im->name, out, 0); | |
1430 | else | |
1431 | fprintf (out, "%d", im->ordinal); | |
775cabad | 1432 | |
252b5132 RH |
1433 | fprintf (out, "\n"); |
1434 | } | |
1435 | } | |
1436 | } | |
1437 | else | |
1438 | fprintf (out, _("; no contents available\n")); | |
1439 | ||
1440 | if (fclose (out) == EOF) | |
775cabad NC |
1441 | /* xgettext:c-format */ |
1442 | einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename); | |
252b5132 RH |
1443 | } |
1444 | ||
775cabad | 1445 | /* Generate the import library. */ |
252b5132 RH |
1446 | |
1447 | static asymbol **symtab; | |
1448 | static int symptr; | |
1449 | static int tmp_seq; | |
1450 | static const char *dll_filename; | |
1451 | static char *dll_symname; | |
1452 | ||
1453 | #define UNDSEC (asection *) &bfd_und_section | |
1454 | ||
1455 | static asection * | |
d643799d | 1456 | quick_section (abfd, name, flags, align) |
252b5132 RH |
1457 | bfd *abfd; |
1458 | const char *name; | |
1459 | int flags; | |
1460 | int align; | |
1461 | { | |
1462 | asection *sec; | |
1463 | asymbol *sym; | |
1464 | ||
1465 | sec = bfd_make_section_old_way (abfd, name); | |
86b1cc60 | 1466 | bfd_set_section_flags (abfd, sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP); |
252b5132 | 1467 | bfd_set_section_alignment (abfd, sec, align); |
86b1cc60 | 1468 | /* Remember to undo this before trying to link internally! */ |
252b5132 RH |
1469 | sec->output_section = sec; |
1470 | ||
1471 | sym = bfd_make_empty_symbol (abfd); | |
1472 | symtab[symptr++] = sym; | |
1473 | sym->name = sec->name; | |
1474 | sym->section = sec; | |
1475 | sym->flags = BSF_LOCAL; | |
1476 | sym->value = 0; | |
1477 | ||
1478 | return sec; | |
1479 | } | |
1480 | ||
1481 | static void | |
1482 | quick_symbol (abfd, n1, n2, n3, sec, flags, addr) | |
1483 | bfd *abfd; | |
db09f25b AM |
1484 | const char *n1; |
1485 | const char *n2; | |
1486 | const char *n3; | |
252b5132 RH |
1487 | asection *sec; |
1488 | int flags; | |
1489 | int addr; | |
1490 | { | |
1491 | asymbol *sym; | |
1492 | char *name = (char *) xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); | |
775cabad | 1493 | |
252b5132 RH |
1494 | strcpy (name, n1); |
1495 | strcat (name, n2); | |
1496 | strcat (name, n3); | |
1497 | sym = bfd_make_empty_symbol (abfd); | |
1498 | sym->name = name; | |
1499 | sym->section = sec; | |
1500 | sym->flags = flags; | |
1501 | sym->value = addr; | |
1502 | symtab[symptr++] = sym; | |
1503 | } | |
1504 | ||
1505 | static arelent *reltab = 0; | |
1506 | static int relcount = 0, relsize = 0; | |
1507 | ||
1508 | static void | |
1509 | quick_reloc (abfd, address, which_howto, symidx) | |
1510 | bfd *abfd; | |
1511 | int address; | |
1512 | int which_howto; | |
1513 | int symidx; | |
1514 | { | |
d643799d | 1515 | if (relcount >= (relsize - 1)) |
252b5132 RH |
1516 | { |
1517 | relsize += 10; | |
1518 | if (reltab) | |
1519 | reltab = (arelent *) xrealloc (reltab, relsize * sizeof (arelent)); | |
1520 | else | |
1521 | reltab = (arelent *) xmalloc (relsize * sizeof (arelent)); | |
1522 | } | |
1523 | reltab[relcount].address = address; | |
1524 | reltab[relcount].addend = 0; | |
1525 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
1526 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
1527 | relcount++; | |
1528 | } | |
1529 | ||
1530 | static void | |
1531 | save_relocs (asection *sec) | |
1532 | { | |
1533 | int i; | |
775cabad | 1534 | |
252b5132 RH |
1535 | sec->relocation = reltab; |
1536 | sec->reloc_count = relcount; | |
d643799d KH |
1537 | sec->orelocation = (arelent **) xmalloc ((relcount + 1) * sizeof (arelent *)); |
1538 | for (i = 0; i < relcount; i++) | |
252b5132 RH |
1539 | sec->orelocation[i] = sec->relocation + i; |
1540 | sec->orelocation[relcount] = 0; | |
1541 | sec->flags |= SEC_RELOC; | |
1542 | reltab = 0; | |
1543 | relcount = relsize = 0; | |
1544 | } | |
1545 | ||
775cabad NC |
1546 | /* .section .idata$2 |
1547 | .global __head_my_dll | |
1548 | __head_my_dll: | |
1549 | .rva hname | |
1550 | .long 0 | |
1551 | .long 0 | |
1552 | .rva __my_dll_iname | |
1553 | .rva fthunk | |
1554 | ||
1555 | .section .idata$5 | |
1556 | .long 0 | |
1557 | fthunk: | |
1558 | ||
1559 | .section .idata$4 | |
1560 | .long 0 | |
1561 | hname: */ | |
252b5132 RH |
1562 | |
1563 | static bfd * | |
1564 | make_head (parent) | |
1565 | bfd *parent; | |
1566 | { | |
1567 | asection *id2, *id5, *id4; | |
1568 | unsigned char *d2, *d5, *d4; | |
1569 | char *oname; | |
1570 | bfd *abfd; | |
1571 | ||
1572 | oname = (char *) xmalloc (20); | |
1573 | sprintf (oname, "d%06d.o", tmp_seq); | |
1574 | tmp_seq++; | |
1575 | ||
1576 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1577 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1578 | bfd_make_writable (abfd); |
1579 | ||
1580 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1581 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1582 | |
1583 | symptr = 0; | |
1584 | symtab = (asymbol **) xmalloc (6 * sizeof (asymbol *)); | |
1585 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); | |
1586 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1587 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
d643799d KH |
1588 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
1589 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
c6c37250 DD |
1590 | |
1591 | /* OK, pay attention here. I got confused myself looking back at | |
1592 | it. We create a four-byte section to mark the beginning of the | |
1593 | list, and we include an offset of 4 in the section, so that the | |
1594 | pointer to the list points to the *end* of this section, which is | |
5cc18311 | 1595 | the start of the list of sections from other objects. */ |
252b5132 RH |
1596 | |
1597 | bfd_set_section_size (abfd, id2, 20); | |
1598 | d2 = (unsigned char *) xmalloc (20); | |
1599 | id2->contents = d2; | |
1600 | memset (d2, 0, 20); | |
775cabad | 1601 | d2[0] = d2[16] = 4; /* Reloc addend. */ |
252b5132 RH |
1602 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
1603 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
1604 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
1605 | save_relocs (id2); | |
1606 | ||
1607 | bfd_set_section_size (abfd, id5, 4); | |
1608 | d5 = (unsigned char *) xmalloc (4); | |
1609 | id5->contents = d5; | |
1610 | memset (d5, 0, 4); | |
1611 | ||
1612 | bfd_set_section_size (abfd, id4, 4); | |
1613 | d4 = (unsigned char *) xmalloc (4); | |
1614 | id4->contents = d4; | |
1615 | memset (d4, 0, 4); | |
1616 | ||
1617 | bfd_set_symtab (abfd, symtab, symptr); | |
1618 | ||
1619 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
1620 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1621 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
5cc18311 | 1622 | |
252b5132 RH |
1623 | bfd_make_readable (abfd); |
1624 | return abfd; | |
1625 | } | |
1626 | ||
775cabad NC |
1627 | /* .section .idata$4 |
1628 | .long 0 | |
1629 | .section .idata$5 | |
1630 | .long 0 | |
1631 | .section idata$7 | |
1632 | .global __my_dll_iname | |
1633 | __my_dll_iname: | |
1634 | .asciz "my.dll" */ | |
252b5132 RH |
1635 | |
1636 | static bfd * | |
1637 | make_tail (parent) | |
1638 | bfd *parent; | |
1639 | { | |
1640 | asection *id4, *id5, *id7; | |
1641 | unsigned char *d4, *d5, *d7; | |
1642 | int len; | |
1643 | char *oname; | |
1644 | bfd *abfd; | |
1645 | ||
1646 | oname = (char *) xmalloc (20); | |
1647 | sprintf (oname, "d%06d.o", tmp_seq); | |
1648 | tmp_seq++; | |
1649 | ||
1650 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1651 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1652 | bfd_make_writable (abfd); |
1653 | ||
1654 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1655 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1656 | |
1657 | symptr = 0; | |
1658 | symtab = (asymbol **) xmalloc (5 * sizeof (asymbol *)); | |
1659 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
1660 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1661 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
d643799d | 1662 | quick_symbol (abfd, U (""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 RH |
1663 | |
1664 | bfd_set_section_size (abfd, id4, 4); | |
1665 | d4 = (unsigned char *) xmalloc (4); | |
1666 | id4->contents = d4; | |
1667 | memset (d4, 0, 4); | |
1668 | ||
1669 | bfd_set_section_size (abfd, id5, 4); | |
1670 | d5 = (unsigned char *) xmalloc (4); | |
1671 | id5->contents = d5; | |
1672 | memset (d5, 0, 4); | |
1673 | ||
d643799d | 1674 | len = strlen (dll_filename) + 1; |
252b5132 | 1675 | if (len & 1) |
d643799d | 1676 | len++; |
252b5132 RH |
1677 | bfd_set_section_size (abfd, id7, len); |
1678 | d7 = (unsigned char *) xmalloc (len); | |
1679 | id7->contents = d7; | |
1680 | strcpy (d7, dll_filename); | |
1681 | ||
1682 | bfd_set_symtab (abfd, symtab, symptr); | |
1683 | ||
1684 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1685 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1686 | bfd_set_section_contents (abfd, id7, d7, 0, len); | |
1687 | ||
1688 | bfd_make_readable (abfd); | |
1689 | return abfd; | |
1690 | } | |
1691 | ||
775cabad NC |
1692 | /* .text |
1693 | .global _function | |
1694 | .global ___imp_function | |
1695 | .global __imp__function | |
1696 | _function: | |
1697 | jmp *__imp__function: | |
1698 | ||
1699 | .section idata$7 | |
1700 | .long __head_my_dll | |
1701 | ||
1702 | .section .idata$5 | |
1703 | ___imp_function: | |
1704 | __imp__function: | |
1705 | iat? | |
1706 | .section .idata$4 | |
1707 | iat? | |
1708 | .section .idata$6 | |
1709 | ID<ordinal>: | |
1710 | .short <hint> | |
1711 | .asciz "function" xlate? (add underscore, kill at) */ | |
1712 | ||
1713 | static unsigned char jmp_ix86_bytes[] = | |
1714 | { | |
252b5132 RH |
1715 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 |
1716 | }; | |
1717 | ||
775cabad NC |
1718 | /* _function: |
1719 | mov.l ip+8,r0 | |
1720 | mov.l @r0,r0 | |
1721 | jmp @r0 | |
1722 | nop | |
1723 | .dw __imp_function */ | |
344a211f | 1724 | |
775cabad NC |
1725 | static unsigned char jmp_sh_bytes[] = |
1726 | { | |
344a211f NC |
1727 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 |
1728 | }; | |
1729 | ||
775cabad NC |
1730 | /* _function: |
1731 | lui $t0,<high:__imp_function> | |
1732 | lw $t0,<low:__imp_function> | |
1733 | jr $t0 | |
1734 | nop */ | |
344a211f | 1735 | |
775cabad NC |
1736 | static unsigned char jmp_mips_bytes[] = |
1737 | { | |
344a211f NC |
1738 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, |
1739 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
1740 | }; | |
252b5132 RH |
1741 | |
1742 | static bfd * | |
1743 | make_one (exp, parent) | |
1744 | def_file_export *exp; | |
1745 | bfd *parent; | |
1746 | { | |
1747 | asection *tx, *id7, *id5, *id4, *id6; | |
23a87948 | 1748 | unsigned char *td = NULL, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
1749 | int len; |
1750 | char *oname; | |
1751 | bfd *abfd; | |
f0c87f88 NC |
1752 | unsigned char *jmp_bytes = NULL; |
1753 | int jmp_byte_count = 0; | |
c6c37250 DD |
1754 | |
1755 | switch (pe_details->pe_arch) | |
1756 | { | |
1757 | case PE_ARCH_i386: | |
1758 | jmp_bytes = jmp_ix86_bytes; | |
1759 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
1760 | break; | |
344a211f NC |
1761 | case PE_ARCH_sh: |
1762 | jmp_bytes = jmp_sh_bytes; | |
1763 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
1764 | break; | |
1765 | case PE_ARCH_mips: | |
1766 | jmp_bytes = jmp_mips_bytes; | |
1767 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
1768 | break; | |
775cabad NC |
1769 | default: |
1770 | abort (); | |
c6c37250 | 1771 | } |
252b5132 RH |
1772 | |
1773 | oname = (char *) xmalloc (20); | |
1774 | sprintf (oname, "d%06d.o", tmp_seq); | |
1775 | tmp_seq++; | |
1776 | ||
1777 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1778 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1779 | bfd_make_writable (abfd); |
1780 | ||
1781 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1782 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1783 | |
1784 | symptr = 0; | |
b044cda1 | 1785 | symtab = (asymbol **) xmalloc (11 * sizeof (asymbol *)); |
252b5132 RH |
1786 | tx = quick_section (abfd, ".text", SEC_CODE|SEC_HAS_CONTENTS, 2); |
1787 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
1788 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1789 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
1790 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
7c9e78f8 | 1791 | if (! exp->flag_data) |
d643799d KH |
1792 | quick_symbol (abfd, U (""), exp->internal_name, "", tx, BSF_GLOBAL, 0); |
1793 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, BSF_GLOBAL, 0); | |
1794 | quick_symbol (abfd, U ("_imp__"), exp->internal_name, "", id5, BSF_GLOBAL, 0); | |
775cabad NC |
1795 | /* Symbol to reference ord/name of imported |
1796 | symbol, used to implement auto-import. */ | |
b044cda1 | 1797 | quick_symbol (abfd, U("_nm__"), exp->internal_name, "", id6, BSF_GLOBAL, 0); |
870df5dc | 1798 | if (pe_dll_compat_implib) |
d643799d KH |
1799 | quick_symbol (abfd, U ("__imp_"), exp->internal_name, "", |
1800 | id5, BSF_GLOBAL, 0); | |
252b5132 | 1801 | |
23a87948 | 1802 | if (! exp->flag_data) |
775cabad NC |
1803 | { |
1804 | bfd_set_section_size (abfd, tx, jmp_byte_count); | |
1805 | td = (unsigned char *) xmalloc (jmp_byte_count); | |
1806 | tx->contents = td; | |
1807 | memcpy (td, jmp_bytes, jmp_byte_count); | |
1808 | ||
1809 | switch (pe_details->pe_arch) | |
1810 | { | |
1811 | case PE_ARCH_i386: | |
1812 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); | |
1813 | break; | |
1814 | case PE_ARCH_sh: | |
1815 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
1816 | break; | |
1817 | case PE_ARCH_mips: | |
1818 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
1819 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
1820 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
1821 | break; | |
1822 | default: | |
1823 | abort (); | |
1824 | } | |
1825 | save_relocs (tx); | |
1826 | } | |
252b5132 RH |
1827 | |
1828 | bfd_set_section_size (abfd, id7, 4); | |
1829 | d7 = (unsigned char *) xmalloc (4); | |
1830 | id7->contents = d7; | |
1831 | memset (d7, 0, 4); | |
1832 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 6); | |
1833 | save_relocs (id7); | |
1834 | ||
1835 | bfd_set_section_size (abfd, id5, 4); | |
1836 | d5 = (unsigned char *) xmalloc (4); | |
1837 | id5->contents = d5; | |
1838 | memset (d5, 0, 4); | |
775cabad | 1839 | |
252b5132 RH |
1840 | if (exp->flag_noname) |
1841 | { | |
1842 | d5[0] = exp->ordinal; | |
1843 | d5[1] = exp->ordinal >> 8; | |
1844 | d5[3] = 0x80; | |
1845 | } | |
1846 | else | |
1847 | { | |
1848 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
1849 | save_relocs (id5); | |
1850 | } | |
1851 | ||
1852 | bfd_set_section_size (abfd, id4, 4); | |
1853 | d4 = (unsigned char *) xmalloc (4); | |
1854 | id4->contents = d4; | |
1855 | memset (d4, 0, 4); | |
775cabad | 1856 | |
252b5132 RH |
1857 | if (exp->flag_noname) |
1858 | { | |
c2a94a7a DD |
1859 | d4[0] = exp->ordinal; |
1860 | d4[1] = exp->ordinal >> 8; | |
1861 | d4[3] = 0x80; | |
252b5132 RH |
1862 | } |
1863 | else | |
1864 | { | |
1865 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
1866 | save_relocs (id4); | |
1867 | } | |
1868 | ||
1869 | if (exp->flag_noname) | |
1870 | { | |
1871 | len = 0; | |
1872 | bfd_set_section_size (abfd, id6, 0); | |
1873 | } | |
1874 | else | |
1875 | { | |
1876 | len = strlen (exp->name) + 3; | |
1877 | if (len & 1) | |
1878 | len++; | |
1879 | bfd_set_section_size (abfd, id6, len); | |
1880 | d6 = (unsigned char *) xmalloc (len); | |
1881 | id6->contents = d6; | |
1882 | memset (d6, 0, len); | |
1883 | d6[0] = exp->hint & 0xff; | |
1884 | d6[1] = exp->hint >> 8; | |
d643799d | 1885 | strcpy (d6 + 2, exp->name); |
252b5132 RH |
1886 | } |
1887 | ||
1888 | bfd_set_symtab (abfd, symtab, symptr); | |
1889 | ||
c6c37250 | 1890 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); |
252b5132 RH |
1891 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
1892 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1893 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1894 | if (!exp->flag_noname) | |
1895 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
1896 | ||
1897 | bfd_make_readable (abfd); | |
1898 | return abfd; | |
1899 | } | |
1900 | ||
b044cda1 CW |
1901 | static bfd * |
1902 | make_singleton_name_thunk (import, parent) | |
db09f25b | 1903 | const char *import; |
b044cda1 CW |
1904 | bfd *parent; |
1905 | { | |
775cabad | 1906 | /* Name thunks go to idata$4. */ |
b044cda1 CW |
1907 | asection *id4; |
1908 | unsigned char *d4; | |
1909 | char *oname; | |
1910 | bfd *abfd; | |
1911 | ||
1912 | oname = (char *) xmalloc (20); | |
1913 | sprintf (oname, "nmth%06d.o", tmp_seq); | |
1914 | tmp_seq++; | |
1915 | ||
1916 | abfd = bfd_create (oname, parent); | |
1917 | bfd_find_target (pe_details->object_target, abfd); | |
1918 | bfd_make_writable (abfd); | |
1919 | ||
1920 | bfd_set_format (abfd, bfd_object); | |
1921 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
1922 | ||
1923 | symptr = 0; | |
1924 | symtab = (asymbol **) xmalloc (3 * sizeof (asymbol *)); | |
1925 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
1926 | quick_symbol (abfd, U ("_nm_thnk_"), import, "", id4, BSF_GLOBAL, 0); | |
1927 | quick_symbol (abfd, U ("_nm_"), import, "", UNDSEC, BSF_GLOBAL, 0); | |
1928 | ||
1929 | bfd_set_section_size (abfd, id4, 8); | |
1930 | d4 = (unsigned char *) xmalloc (4); | |
1931 | id4->contents = d4; | |
1932 | memset (d4, 0, 8); | |
1933 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); | |
1934 | save_relocs (id4); | |
1935 | ||
1936 | bfd_set_symtab (abfd, symtab, symptr); | |
1937 | ||
1938 | bfd_set_section_contents (abfd, id4, d4, 0, 8); | |
1939 | ||
1940 | bfd_make_readable (abfd); | |
1941 | return abfd; | |
1942 | } | |
1943 | ||
1944 | static char * | |
1945 | make_import_fixup_mark (rel) | |
1946 | arelent *rel; | |
1947 | { | |
775cabad | 1948 | /* We convert reloc to symbol, for later reference. */ |
b044cda1 CW |
1949 | static int counter; |
1950 | static char *fixup_name = NULL; | |
db09f25b | 1951 | static size_t buffer_len = 0; |
b044cda1 CW |
1952 | |
1953 | struct symbol_cache_entry *sym = *rel->sym_ptr_ptr; | |
1954 | ||
1955 | bfd *abfd = bfd_asymbol_bfd (sym); | |
1956 | struct coff_link_hash_entry *myh = NULL; | |
1957 | ||
1958 | if (!fixup_name) | |
1959 | { | |
1960 | fixup_name = (char *) xmalloc (384); | |
1961 | buffer_len = 384; | |
1962 | } | |
1963 | ||
1964 | if (strlen (sym->name) + 25 > buffer_len) | |
775cabad | 1965 | /* Assume 25 chars for "__fu" + counter + "_". If counter is |
b044cda1 | 1966 | bigger than 20 digits long, we've got worse problems than |
775cabad | 1967 | overflowing this buffer... */ |
b044cda1 CW |
1968 | { |
1969 | free (fixup_name); | |
775cabad NC |
1970 | /* New buffer size is length of symbol, plus 25, but then |
1971 | rounded up to the nearest multiple of 128. */ | |
b044cda1 CW |
1972 | buffer_len = ((strlen (sym->name) + 25) + 127) & ~127; |
1973 | fixup_name = (char *) xmalloc (buffer_len); | |
1974 | } | |
1975 | ||
1976 | sprintf (fixup_name, "__fu%d_%s", counter++, sym->name); | |
1977 | ||
1978 | bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL, | |
1979 | current_sec, /* sym->section, */ | |
1980 | rel->address, NULL, true, false, | |
1981 | (struct bfd_link_hash_entry **) &myh); | |
1982 | ||
775cabad NC |
1983 | #if 0 |
1984 | printf ("type:%d\n", myh->type); | |
1985 | printf ("%s\n", myh->root.u.def.section->name); | |
1986 | #endif | |
b044cda1 CW |
1987 | return fixup_name; |
1988 | } | |
1989 | ||
775cabad NC |
1990 | /* .section .idata$3 |
1991 | .rva __nm_thnk_SYM (singleton thunk with name of func) | |
1992 | .long 0 | |
1993 | .long 0 | |
1994 | .rva __my_dll_iname (name of dll) | |
1995 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
b044cda1 CW |
1996 | |
1997 | static bfd * | |
1998 | make_import_fixup_entry (name, fixup_name, dll_symname,parent) | |
db09f25b AM |
1999 | const char *name; |
2000 | const char *fixup_name; | |
2001 | const char *dll_symname; | |
b044cda1 CW |
2002 | bfd *parent; |
2003 | { | |
2004 | asection *id3; | |
2005 | unsigned char *d3; | |
2006 | char *oname; | |
2007 | bfd *abfd; | |
2008 | ||
2009 | oname = (char *) xmalloc (20); | |
2010 | sprintf (oname, "fu%06d.o", tmp_seq); | |
2011 | tmp_seq++; | |
2012 | ||
2013 | abfd = bfd_create (oname, parent); | |
2014 | bfd_find_target (pe_details->object_target, abfd); | |
2015 | bfd_make_writable (abfd); | |
2016 | ||
2017 | bfd_set_format (abfd, bfd_object); | |
2018 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2019 | ||
2020 | symptr = 0; | |
2021 | symtab = (asymbol **) xmalloc (6 * sizeof (asymbol *)); | |
2022 | id3 = quick_section (abfd, ".idata$3", SEC_HAS_CONTENTS, 2); | |
775cabad NC |
2023 | |
2024 | #if 0 | |
2025 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); | |
2026 | #endif | |
b044cda1 CW |
2027 | quick_symbol (abfd, U ("_nm_thnk_"), name, "", UNDSEC, BSF_GLOBAL, 0); |
2028 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
2029 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2030 | ||
2031 | bfd_set_section_size (abfd, id3, 20); | |
2032 | d3 = (unsigned char *) xmalloc (20); | |
2033 | id3->contents = d3; | |
2034 | memset (d3, 0, 20); | |
2035 | ||
2036 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2037 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 2); | |
2038 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 3); | |
2039 | save_relocs (id3); | |
2040 | ||
2041 | bfd_set_symtab (abfd, symtab, symptr); | |
2042 | ||
2043 | bfd_set_section_contents (abfd, id3, d3, 0, 20); | |
2044 | ||
2045 | bfd_make_readable (abfd); | |
2046 | return abfd; | |
2047 | } | |
2048 | ||
2049 | void | |
2050 | pe_create_import_fixup (rel) | |
2051 | arelent *rel; | |
2052 | { | |
2053 | char buf[300]; | |
2054 | struct symbol_cache_entry *sym = *rel->sym_ptr_ptr; | |
2055 | struct bfd_link_hash_entry *name_thunk_sym; | |
db09f25b | 2056 | const char *name = sym->name; |
b044cda1 CW |
2057 | char *fixup_name = make_import_fixup_mark (rel); |
2058 | ||
2059 | sprintf (buf, U ("_nm_thnk_%s"), name); | |
2060 | ||
2061 | name_thunk_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); | |
2062 | ||
2063 | if (!name_thunk_sym || name_thunk_sym->type != bfd_link_hash_defined) | |
2064 | { | |
2065 | bfd *b = make_singleton_name_thunk (name, output_bfd); | |
2066 | add_bfd_to_link (b, b->filename, &link_info); | |
2067 | ||
775cabad | 2068 | /* If we ever use autoimport, we have to cast text section writable. */ |
b044cda1 CW |
2069 | config.text_read_only = false; |
2070 | } | |
2071 | ||
2072 | { | |
aa3d9aba | 2073 | extern char * pe_data_import_dll; |
85c77458 | 2074 | char * dll_symname = pe_data_import_dll ? pe_data_import_dll : "unknown"; |
aa3d9aba NC |
2075 | |
2076 | bfd *b = make_import_fixup_entry (name, fixup_name, dll_symname, | |
b044cda1 CW |
2077 | output_bfd); |
2078 | add_bfd_to_link (b, b->filename, &link_info); | |
2079 | } | |
2080 | } | |
2081 | ||
2082 | ||
252b5132 RH |
2083 | void |
2084 | pe_dll_generate_implib (def, impfilename) | |
2085 | def_file *def; | |
1069dd8d | 2086 | const char *impfilename; |
252b5132 RH |
2087 | { |
2088 | int i; | |
2089 | bfd *ar_head; | |
2090 | bfd *ar_tail; | |
2091 | bfd *outarch; | |
2092 | bfd *head = 0; | |
2093 | ||
5aaace27 | 2094 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 | 2095 | dll_symname = xstrdup (dll_filename); |
d643799d | 2096 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2097 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2098 | dll_symname[i] = '_'; |
2099 | ||
2100 | unlink (impfilename); | |
2101 | ||
2102 | outarch = bfd_openw (impfilename, 0); | |
2103 | ||
2104 | if (!outarch) | |
2105 | { | |
2106 | /* xgettext:c-format */ | |
2107 | einfo (_("%XCan't open .lib file: %s\n"), impfilename); | |
2108 | return; | |
2109 | } | |
2110 | ||
2111 | /* xgettext:c-format */ | |
2112 | einfo (_("Creating library file: %s\n"), impfilename); | |
5cc18311 | 2113 | |
252b5132 RH |
2114 | bfd_set_format (outarch, bfd_archive); |
2115 | outarch->has_armap = 1; | |
2116 | ||
5cc18311 | 2117 | /* Work out a reasonable size of things to put onto one line. */ |
252b5132 | 2118 | ar_head = make_head (outarch); |
252b5132 | 2119 | |
d643799d | 2120 | for (i = 0; i < def->num_exports; i++) |
252b5132 | 2121 | { |
86b1cc60 | 2122 | /* The import library doesn't know about the internal name. */ |
252b5132 RH |
2123 | char *internal = def->exports[i].internal_name; |
2124 | bfd *n; | |
775cabad | 2125 | |
252b5132 | 2126 | def->exports[i].internal_name = def->exports[i].name; |
d643799d | 2127 | n = make_one (def->exports + i, outarch); |
252b5132 RH |
2128 | n->next = head; |
2129 | head = n; | |
2130 | def->exports[i].internal_name = internal; | |
2131 | } | |
2132 | ||
c6c37250 DD |
2133 | ar_tail = make_tail (outarch); |
2134 | ||
2135 | if (ar_head == NULL || ar_tail == NULL) | |
2136 | return; | |
2137 | ||
86b1cc60 | 2138 | /* Now stick them all into the archive. */ |
252b5132 RH |
2139 | ar_head->next = head; |
2140 | ar_tail->next = ar_head; | |
2141 | head = ar_tail; | |
2142 | ||
2143 | if (! bfd_set_archive_head (outarch, head)) | |
2144 | einfo ("%Xbfd_set_archive_head: %s\n", bfd_errmsg (bfd_get_error ())); | |
5cc18311 | 2145 | |
252b5132 RH |
2146 | if (! bfd_close (outarch)) |
2147 | einfo ("%Xbfd_close %s: %s\n", impfilename, bfd_errmsg (bfd_get_error ())); | |
2148 | ||
2149 | while (head != NULL) | |
2150 | { | |
2151 | bfd *n = head->next; | |
2152 | bfd_close (head); | |
2153 | head = n; | |
2154 | } | |
2155 | } | |
2156 | ||
2157 | static void | |
2158 | add_bfd_to_link (abfd, name, link_info) | |
2159 | bfd *abfd; | |
db09f25b | 2160 | const char *name; |
252b5132 RH |
2161 | struct bfd_link_info *link_info; |
2162 | { | |
2163 | lang_input_statement_type *fake_file; | |
775cabad | 2164 | |
252b5132 RH |
2165 | fake_file = lang_add_input_file (name, |
2166 | lang_input_file_is_fake_enum, | |
2167 | NULL); | |
2168 | fake_file->the_bfd = abfd; | |
2169 | ldlang_add_file (fake_file); | |
775cabad | 2170 | |
252b5132 RH |
2171 | if (!bfd_link_add_symbols (abfd, link_info)) |
2172 | einfo ("%Xaddsym %s: %s\n", name, bfd_errmsg (bfd_get_error ())); | |
2173 | } | |
2174 | ||
2175 | void | |
2176 | pe_process_import_defs (output_bfd, link_info) | |
2177 | bfd *output_bfd; | |
2178 | struct bfd_link_info *link_info; | |
2179 | { | |
2180 | def_file_module *module; | |
775cabad | 2181 | |
d643799d | 2182 | pe_dll_id_target (bfd_get_target (output_bfd)); |
252b5132 RH |
2183 | |
2184 | if (!pe_def_file) | |
2185 | return; | |
2186 | ||
2187 | for (module = pe_def_file->modules; module; module = module->next) | |
2188 | { | |
2189 | int i, do_this_dll; | |
2190 | ||
2191 | dll_filename = module->name; | |
2192 | dll_symname = xstrdup (module->name); | |
d643799d | 2193 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2194 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2195 | dll_symname[i] = '_'; |
2196 | ||
2197 | do_this_dll = 0; | |
2198 | ||
d643799d | 2199 | for (i = 0; i < pe_def_file->num_imports; i++) |
252b5132 RH |
2200 | if (pe_def_file->imports[i].module == module) |
2201 | { | |
2202 | def_file_export exp; | |
2203 | struct bfd_link_hash_entry *blhe; | |
2204 | ||
86b1cc60 | 2205 | /* See if we need this import. */ |
874c8c99 | 2206 | char *name = (char *) xmalloc (strlen (pe_def_file->imports[i].internal_name) + 2 + 6); |
d643799d | 2207 | sprintf (name, "%s%s", U (""), pe_def_file->imports[i].internal_name); |
252b5132 RH |
2208 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
2209 | false, false, false); | |
874c8c99 DD |
2210 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) |
2211 | { | |
d643799d | 2212 | sprintf (name, "%s%s", U ("_imp__"), |
874c8c99 DD |
2213 | pe_def_file->imports[i].internal_name); |
2214 | blhe = bfd_link_hash_lookup (link_info->hash, name, | |
2215 | false, false, false); | |
2216 | } | |
252b5132 RH |
2217 | free (name); |
2218 | if (blhe && blhe->type == bfd_link_hash_undefined) | |
2219 | { | |
2220 | bfd *one; | |
86b1cc60 | 2221 | /* We do. */ |
252b5132 RH |
2222 | if (!do_this_dll) |
2223 | { | |
2224 | bfd *ar_head = make_head (output_bfd); | |
2225 | add_bfd_to_link (ar_head, ar_head->filename, link_info); | |
2226 | do_this_dll = 1; | |
2227 | } | |
2228 | exp.internal_name = pe_def_file->imports[i].internal_name; | |
2229 | exp.name = pe_def_file->imports[i].name; | |
2230 | exp.ordinal = pe_def_file->imports[i].ordinal; | |
2231 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
2232 | exp.flag_private = 0; | |
2233 | exp.flag_constant = 0; | |
2234 | exp.flag_data = 0; | |
2235 | exp.flag_noname = exp.name ? 0 : 1; | |
2236 | one = make_one (&exp, output_bfd); | |
2237 | add_bfd_to_link (one, one->filename, link_info); | |
2238 | } | |
2239 | } | |
2240 | if (do_this_dll) | |
2241 | { | |
2242 | bfd *ar_tail = make_tail (output_bfd); | |
2243 | add_bfd_to_link (ar_tail, ar_tail->filename, link_info); | |
2244 | } | |
2245 | ||
2246 | free (dll_symname); | |
2247 | } | |
2248 | } | |
2249 | ||
775cabad NC |
2250 | /* We were handed a *.DLL file. Parse it and turn it into a set of |
2251 | IMPORTS directives in the def file. Return true if the file was | |
2252 | handled, false if not. */ | |
252b5132 RH |
2253 | |
2254 | static unsigned int | |
2255 | pe_get16 (abfd, where) | |
2256 | bfd *abfd; | |
2257 | int where; | |
2258 | { | |
2259 | unsigned char b[2]; | |
775cabad | 2260 | |
db09f25b AM |
2261 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2262 | bfd_bread (b, (bfd_size_type) 2, abfd); | |
d643799d | 2263 | return b[0] + (b[1] << 8); |
252b5132 RH |
2264 | } |
2265 | ||
2266 | static unsigned int | |
2267 | pe_get32 (abfd, where) | |
2268 | bfd *abfd; | |
2269 | int where; | |
2270 | { | |
2271 | unsigned char b[4]; | |
775cabad | 2272 | |
db09f25b AM |
2273 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2274 | bfd_bread (b, (bfd_size_type) 4, abfd); | |
d643799d | 2275 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2276 | } |
2277 | ||
2278 | #if 0 /* This is not currently used. */ | |
2279 | ||
2280 | static unsigned int | |
2281 | pe_as16 (ptr) | |
2282 | void *ptr; | |
2283 | { | |
2284 | unsigned char *b = ptr; | |
775cabad | 2285 | |
d643799d | 2286 | return b[0] + (b[1] << 8); |
252b5132 RH |
2287 | } |
2288 | ||
2289 | #endif | |
2290 | ||
2291 | static unsigned int | |
2292 | pe_as32 (ptr) | |
2293 | void *ptr; | |
2294 | { | |
2295 | unsigned char *b = ptr; | |
775cabad | 2296 | |
d643799d | 2297 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2298 | } |
2299 | ||
2300 | boolean | |
2301 | pe_implied_import_dll (filename) | |
1069dd8d | 2302 | const char *filename; |
252b5132 RH |
2303 | { |
2304 | bfd *dll; | |
2305 | unsigned long pe_header_offset, opthdr_ofs, num_entries, i; | |
2306 | unsigned long export_rva, export_size, nsections, secptr, expptr; | |
2307 | unsigned char *expdata, *erva; | |
2308 | unsigned long name_rvas, ordinals, nexp, ordbase; | |
1069dd8d | 2309 | const char *dll_name; |
252b5132 RH |
2310 | |
2311 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
5cc18311 | 2312 | the middle of the .rdata section. */ |
c6c37250 | 2313 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
2314 | if (!dll) |
2315 | { | |
2316 | einfo ("%Xopen %s: %s\n", filename, bfd_errmsg (bfd_get_error ())); | |
2317 | return false; | |
2318 | } | |
775cabad | 2319 | |
86b1cc60 | 2320 | /* PEI dlls seem to be bfd_objects. */ |
252b5132 RH |
2321 | if (!bfd_check_format (dll, bfd_object)) |
2322 | { | |
2323 | einfo ("%X%s: this doesn't appear to be a DLL\n", filename); | |
2324 | return false; | |
2325 | } | |
2326 | ||
2327 | dll_name = filename; | |
d643799d | 2328 | for (i = 0; filename[i]; i++) |
252b5132 RH |
2329 | if (filename[i] == '/' || filename[i] == '\\' || filename[i] == ':') |
2330 | dll_name = filename + i + 1; | |
2331 | ||
2332 | pe_header_offset = pe_get32 (dll, 0x3c); | |
2333 | opthdr_ofs = pe_header_offset + 4 + 20; | |
2334 | num_entries = pe_get32 (dll, opthdr_ofs + 92); | |
775cabad NC |
2335 | |
2336 | if (num_entries < 1) /* No exports. */ | |
252b5132 | 2337 | return false; |
775cabad | 2338 | |
252b5132 RH |
2339 | export_rva = pe_get32 (dll, opthdr_ofs + 96); |
2340 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
2341 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); | |
2342 | secptr = (pe_header_offset + 4 + 20 + | |
2343 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
2344 | expptr = 0; | |
775cabad | 2345 | |
d643799d | 2346 | for (i = 0; i < nsections; i++) |
252b5132 RH |
2347 | { |
2348 | char sname[8]; | |
2349 | unsigned long secptr1 = secptr + 40 * i; | |
2350 | unsigned long vaddr = pe_get32 (dll, secptr1 + 12); | |
2351 | unsigned long vsize = pe_get32 (dll, secptr1 + 16); | |
2352 | unsigned long fptr = pe_get32 (dll, secptr1 + 20); | |
775cabad | 2353 | |
db09f25b AM |
2354 | bfd_seek (dll, (file_ptr) secptr1, SEEK_SET); |
2355 | bfd_bread (sname, (bfd_size_type) 8, dll); | |
775cabad | 2356 | |
d643799d | 2357 | if (vaddr <= export_rva && vaddr + vsize > export_rva) |
252b5132 RH |
2358 | { |
2359 | expptr = fptr + (export_rva - vaddr); | |
2360 | if (export_rva + export_size > vaddr + vsize) | |
2361 | export_size = vsize - (export_rva - vaddr); | |
2362 | break; | |
2363 | } | |
2364 | } | |
2365 | ||
2366 | expdata = (unsigned char *) xmalloc (export_size); | |
db09f25b AM |
2367 | bfd_seek (dll, (file_ptr) expptr, SEEK_SET); |
2368 | bfd_bread (expdata, (bfd_size_type) export_size, dll); | |
252b5132 RH |
2369 | erva = expdata - export_rva; |
2370 | ||
2371 | if (pe_def_file == 0) | |
d643799d | 2372 | pe_def_file = def_file_empty (); |
252b5132 | 2373 | |
d643799d KH |
2374 | nexp = pe_as32 (expdata + 24); |
2375 | name_rvas = pe_as32 (expdata + 32); | |
2376 | ordinals = pe_as32 (expdata + 36); | |
2377 | ordbase = pe_as32 (expdata + 16); | |
775cabad | 2378 | |
d643799d | 2379 | for (i = 0; i < nexp; i++) |
252b5132 | 2380 | { |
d643799d | 2381 | unsigned long name_rva = pe_as32 (erva + name_rvas + i * 4); |
252b5132 | 2382 | def_file_import *imp; |
775cabad | 2383 | |
d643799d | 2384 | imp = def_file_add_import (pe_def_file, erva + name_rva, dll_name, |
252b5132 RH |
2385 | i, 0); |
2386 | } | |
2387 | ||
2388 | return true; | |
2389 | } | |
2390 | ||
775cabad NC |
2391 | /* These are the main functions, called from the emulation. The first |
2392 | is called after the bfds are read, so we can guess at how much space | |
2393 | we need. The second is called after everything is placed, so we | |
2394 | can put the right values in place. */ | |
252b5132 RH |
2395 | |
2396 | void | |
2397 | pe_dll_build_sections (abfd, info) | |
2398 | bfd *abfd; | |
2399 | struct bfd_link_info *info; | |
2400 | { | |
c6c37250 | 2401 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
2402 | process_def_file (abfd, info); |
2403 | ||
2404 | generate_edata (abfd, info); | |
c6c37250 DD |
2405 | build_filler_bfd (1); |
2406 | } | |
2407 | ||
2408 | void | |
2409 | pe_exe_build_sections (abfd, info) | |
2410 | bfd *abfd; | |
1069dd8d | 2411 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
c6c37250 DD |
2412 | { |
2413 | pe_dll_id_target (bfd_get_target (abfd)); | |
2414 | build_filler_bfd (0); | |
252b5132 RH |
2415 | } |
2416 | ||
2417 | void | |
2418 | pe_dll_fill_sections (abfd, info) | |
2419 | bfd *abfd; | |
2420 | struct bfd_link_info *info; | |
2421 | { | |
c6c37250 | 2422 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
2423 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
2424 | ||
2425 | generate_reloc (abfd, info); | |
2426 | if (reloc_sz > 0) | |
2427 | { | |
2428 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
2429 | ||
2430 | /* Resize the sections. */ | |
2431 | lang_size_sections (stat_ptr->head, abs_output_section, | |
ae7fb08f | 2432 | &stat_ptr->head, 0, (bfd_vma) 0, NULL); |
252b5132 RH |
2433 | |
2434 | /* Redo special stuff. */ | |
2435 | ldemul_after_allocation (); | |
2436 | ||
2437 | /* Do the assignments again. */ | |
2438 | lang_do_assignments (stat_ptr->head, | |
2439 | abs_output_section, | |
2440 | (fill_type) 0, (bfd_vma) 0); | |
2441 | } | |
2442 | ||
2443 | fill_edata (abfd, info); | |
2444 | ||
2445 | pe_data (abfd)->dll = 1; | |
2446 | ||
2447 | edata_s->contents = edata_d; | |
2448 | reloc_s->contents = reloc_d; | |
2449 | } | |
c6c37250 DD |
2450 | |
2451 | void | |
2452 | pe_exe_fill_sections (abfd, info) | |
2453 | bfd *abfd; | |
2454 | struct bfd_link_info *info; | |
2455 | { | |
2456 | pe_dll_id_target (bfd_get_target (abfd)); | |
2457 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; | |
2458 | ||
2459 | generate_reloc (abfd, info); | |
2460 | if (reloc_sz > 0) | |
2461 | { | |
2462 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
2463 | ||
2464 | /* Resize the sections. */ | |
2465 | lang_size_sections (stat_ptr->head, abs_output_section, | |
ae7fb08f | 2466 | &stat_ptr->head, 0, (bfd_vma) 0, NULL); |
c6c37250 DD |
2467 | |
2468 | /* Redo special stuff. */ | |
2469 | ldemul_after_allocation (); | |
2470 | ||
2471 | /* Do the assignments again. */ | |
2472 | lang_do_assignments (stat_ptr->head, | |
2473 | abs_output_section, | |
2474 | (fill_type) 0, (bfd_vma) 0); | |
2475 | } | |
2476 | reloc_s->contents = reloc_d; | |
2477 | } |