Commit | Line | Data |
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252b5132 | 1 | /* Routines to help build PEI-format DLLs (Win32 etc) |
53baae48 | 2 | Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
4d8907ac | 3 | Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by DJ Delorie <dj@cygnus.com> |
5 | ||
6 | This file is part of GLD, the Gnu Linker. | |
7 | ||
8 | GLD is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GLD is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GLD; see the file COPYING. If not, write to the Free | |
75be928b NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
252b5132 RH |
22 | |
23 | #include "bfd.h" | |
24 | #include "sysdep.h" | |
25 | #include "bfdlink.h" | |
26 | #include "libiberty.h" | |
3882b010 | 27 | #include "safe-ctype.h" |
252b5132 RH |
28 | |
29 | #include <time.h> | |
252b5132 RH |
30 | |
31 | #include "ld.h" | |
32 | #include "ldexp.h" | |
33 | #include "ldlang.h" | |
34 | #include "ldwrite.h" | |
35 | #include "ldmisc.h" | |
df2a7313 | 36 | #include <ldgram.h> |
252b5132 | 37 | #include "ldmain.h" |
b71e2778 | 38 | #include "ldfile.h" |
252b5132 RH |
39 | #include "ldemul.h" |
40 | #include "coff/internal.h" | |
41 | #include "../bfd/libcoff.h" | |
42 | #include "deffile.h" | |
1069dd8d | 43 | #include "pe-dll.h" |
252b5132 | 44 | |
775cabad NC |
45 | /* This file turns a regular Windows PE image into a DLL. Because of |
46 | the complexity of this operation, it has been broken down into a | |
47 | number of separate modules which are all called by the main function | |
48 | at the end of this file. This function is not re-entrant and is | |
49 | normally only called once, so static variables are used to reduce | |
50 | the number of parameters and return values required. | |
b7a26f91 | 51 | |
775cabad NC |
52 | See also: ld/emultempl/pe.em. */ |
53 | ||
54 | /* Auto-import feature by Paul Sokolovsky | |
55 | ||
56 | Quick facts: | |
57 | ||
58 | 1. With this feature on, DLL clients can import variables from DLL | |
59 | without any concern from their side (for example, without any source | |
60 | code modifications). | |
61 | ||
62 | 2. This is done completely in bounds of the PE specification (to be fair, | |
396a2467 | 63 | there's a place where it pokes nose out of, but in practice it works). |
775cabad NC |
64 | So, resulting module can be used with any other PE compiler/linker. |
65 | ||
66 | 3. Auto-import is fully compatible with standard import method and they | |
67 | can be mixed together. | |
68 | ||
69 | 4. Overheads: space: 8 bytes per imported symbol, plus 20 for each | |
70 | reference to it; load time: negligible; virtual/physical memory: should be | |
71 | less than effect of DLL relocation, and I sincerely hope it doesn't affect | |
72 | DLL sharability (too much). | |
73 | ||
74 | Idea | |
75 | ||
76 | The obvious and only way to get rid of dllimport insanity is to make client | |
77 | access variable directly in the DLL, bypassing extra dereference. I.e., | |
396a2467 | 78 | whenever client contains something like |
775cabad NC |
79 | |
80 | mov dll_var,%eax, | |
81 | ||
82 | address of dll_var in the command should be relocated to point into loaded | |
83 | DLL. The aim is to make OS loader do so, and than make ld help with that. | |
84 | Import section of PE made following way: there's a vector of structures | |
85 | each describing imports from particular DLL. Each such structure points | |
396a2467 | 86 | to two other parallel vectors: one holding imported names, and one which |
775cabad NC |
87 | will hold address of corresponding imported name. So, the solution is |
88 | de-vectorize these structures, making import locations be sparse and | |
89 | pointing directly into code. Before continuing, it is worth a note that, | |
90 | while authors strives to make PE act ELF-like, there're some other people | |
91 | make ELF act PE-like: elfvector, ;-) . | |
92 | ||
93 | Implementation | |
94 | ||
95 | For each reference of data symbol to be imported from DLL (to set of which | |
96 | belong symbols with name <sym>, if __imp_<sym> is found in implib), the | |
97 | import fixup entry is generated. That entry is of type | |
53baae48 | 98 | IMAGE_IMPORT_DESCRIPTOR and stored in .idata$2 subsection. Each |
775cabad NC |
99 | fixup entry contains pointer to symbol's address within .text section |
100 | (marked with __fuN_<sym> symbol, where N is integer), pointer to DLL name | |
101 | (so, DLL name is referenced by multiple entries), and pointer to symbol | |
102 | name thunk. Symbol name thunk is singleton vector (__nm_th_<symbol>) | |
103 | pointing to IMAGE_IMPORT_BY_NAME structure (__nm_<symbol>) directly | |
104 | containing imported name. Here comes that "om the edge" problem mentioned | |
105 | above: PE specification rambles that name vector (OriginalFirstThunk) | |
106 | should run in parallel with addresses vector (FirstThunk), i.e. that they | |
107 | should have same number of elements and terminated with zero. We violate | |
396a2467 | 108 | this, since FirstThunk points directly into machine code. But in practice, |
775cabad NC |
109 | OS loader implemented the sane way: it goes thru OriginalFirstThunk and |
110 | puts addresses to FirstThunk, not something else. It once again should be | |
111 | noted that dll and symbol name structures are reused across fixup entries | |
112 | and should be there anyway to support standard import stuff, so sustained | |
113 | overhead is 20 bytes per reference. Other question is whether having several | |
114 | IMAGE_IMPORT_DESCRIPTORS for the same DLL is possible. Answer is yes, it is | |
115 | done even by native compiler/linker (libth32's functions are in fact reside | |
116 | in windows9x kernel32.dll, so if you use it, you have two | |
117 | IMAGE_IMPORT_DESCRIPTORS for kernel32.dll). Yet other question is whether | |
118 | referencing the same PE structures several times is valid. The answer is why | |
396a2467 | 119 | not, prohibiting that (detecting violation) would require more work on |
775cabad NC |
120 | behalf of loader than not doing it. |
121 | ||
122 | See also: ld/emultempl/pe.em. */ | |
b044cda1 | 123 | |
1579bae1 | 124 | static void add_bfd_to_link (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 | 140 | static bfd *filler_bfd; |
198beae2 | 141 | static struct bfd_section *edata_s, *reloc_s; |
252b5132 | 142 | static unsigned char *edata_d, *reloc_d; |
1069dd8d | 143 | static size_t edata_sz, reloc_sz; |
2fa9fc65 | 144 | static int runtime_pseudo_relocs_created = 0; |
252b5132 | 145 | |
775cabad | 146 | typedef struct |
5b8273bf NC |
147 | { |
148 | char *name; | |
149 | int len; | |
150 | } | |
151 | autofilter_entry_type; | |
775cabad NC |
152 | |
153 | typedef struct | |
5b8273bf NC |
154 | { |
155 | char *target_name; | |
156 | char *object_target; | |
157 | unsigned int imagebase_reloc; | |
158 | int pe_arch; | |
159 | int bfd_arch; | |
160 | bfd_boolean underscored; | |
161 | autofilter_entry_type* autofilter_symbollist; | |
162 | } | |
163 | pe_details_type; | |
164 | ||
165 | static autofilter_entry_type autofilter_symbollist_generic[] = | |
166 | { | |
167 | { ".text", 5 }, | |
168 | /* Entry point symbols. */ | |
169 | { "DllMain", 7 }, | |
170 | { "DllMainCRTStartup", 17 }, | |
171 | { "_DllMainCRTStartup", 18 }, | |
172 | /* Runtime pseudo-reloc. */ | |
173 | { "_pei386_runtime_relocator", 25 }, | |
174 | { "do_pseudo_reloc", 15 }, | |
175 | { NULL, 0 } | |
176 | }; | |
177 | ||
178 | static autofilter_entry_type autofilter_symbollist_i386[] = | |
179 | { | |
180 | { ".text", 5 }, | |
181 | /* Entry point symbols, and entry hooks. */ | |
182 | { "cygwin_crt0", 11 }, | |
183 | { "DllMain@12", 10 }, | |
184 | { "DllEntryPoint@0", 15 }, | |
185 | { "DllMainCRTStartup@12", 20 }, | |
186 | { "_cygwin_dll_entry@12", 20 }, | |
187 | { "_cygwin_crt0_common@8", 21 }, | |
188 | { "_cygwin_noncygwin_dll_entry@12", 30 }, | |
189 | { "cygwin_attach_dll", 17 }, | |
190 | { "cygwin_premain0", 15 }, | |
191 | { "cygwin_premain1", 15 }, | |
192 | { "cygwin_premain2", 15 }, | |
193 | { "cygwin_premain3", 15 }, | |
194 | /* Runtime pseudo-reloc. */ | |
195 | { "_pei386_runtime_relocator", 25 }, | |
196 | { "do_pseudo_reloc", 15 }, | |
197 | /* Global vars that should not be exported. */ | |
198 | { "impure_ptr", 10 }, | |
199 | { "_impure_ptr", 11 }, | |
200 | { "_fmode", 6 }, | |
201 | { "environ", 7 }, | |
202 | { NULL, 0 } | |
203 | }; | |
b044cda1 | 204 | |
5b8273bf NC |
205 | #define PE_ARCH_i386 1 |
206 | #define PE_ARCH_sh 2 | |
207 | #define PE_ARCH_mips 3 | |
208 | #define PE_ARCH_arm 4 | |
775cabad | 209 | #define PE_ARCH_arm_epoc 5 |
c6c37250 | 210 | |
775cabad NC |
211 | static pe_details_type pe_detail_list[] = |
212 | { | |
c6c37250 DD |
213 | { |
214 | "pei-i386", | |
215 | "pe-i386", | |
216 | 7 /* R_IMAGEBASE */, | |
217 | PE_ARCH_i386, | |
218 | bfd_arch_i386, | |
5b8273bf NC |
219 | TRUE, |
220 | autofilter_symbollist_i386 | |
c6c37250 | 221 | }, |
344a211f NC |
222 | { |
223 | "pei-shl", | |
224 | "pe-shl", | |
225 | 16 /* R_SH_IMAGEBASE */, | |
226 | PE_ARCH_sh, | |
227 | bfd_arch_sh, | |
5b8273bf NC |
228 | TRUE, |
229 | autofilter_symbollist_generic | |
344a211f NC |
230 | }, |
231 | { | |
232 | "pei-mips", | |
233 | "pe-mips", | |
234 | 34 /* MIPS_R_RVA */, | |
235 | PE_ARCH_mips, | |
236 | bfd_arch_mips, | |
5b8273bf NC |
237 | FALSE, |
238 | autofilter_symbollist_generic | |
344a211f NC |
239 | }, |
240 | { | |
241 | "pei-arm-little", | |
242 | "pe-arm-little", | |
243 | 11 /* ARM_RVA32 */, | |
244 | PE_ARCH_arm, | |
245 | bfd_arch_arm, | |
5b8273bf NC |
246 | TRUE, |
247 | autofilter_symbollist_generic | |
344a211f | 248 | }, |
775cabad NC |
249 | { |
250 | "epoc-pei-arm-little", | |
251 | "epoc-pe-arm-little", | |
252 | 11 /* ARM_RVA32 */, | |
253 | PE_ARCH_arm_epoc, | |
254 | bfd_arch_arm, | |
5b8273bf NC |
255 | FALSE, |
256 | autofilter_symbollist_generic | |
775cabad | 257 | }, |
5b8273bf | 258 | { NULL, NULL, 0, 0, 0, FALSE, NULL } |
c6c37250 DD |
259 | }; |
260 | ||
261 | static pe_details_type *pe_details; | |
262 | ||
775cabad NC |
263 | /* Do not specify library suffix explicitly, to allow for dllized versions. */ |
264 | static autofilter_entry_type autofilter_liblist[] = | |
265 | { | |
53baae48 | 266 | { "libcegcc", 8 }, |
602d6c6f | 267 | { "libcygwin", 9 }, |
75c2ea5b CF |
268 | { "libgcc", 6 }, |
269 | { "libstdc++", 9 }, | |
270 | { "libmingw32", 10 }, | |
9e8d33e7 | 271 | { "libmingwex", 10 }, |
75c2ea5b CF |
272 | { "libg2c", 6 }, |
273 | { "libsupc++", 9 }, | |
274 | { "libobjc", 7 }, | |
9e8d33e7 | 275 | { "libgcj", 6 }, |
b044cda1 CW |
276 | { NULL, 0 } |
277 | }; | |
775cabad NC |
278 | |
279 | static autofilter_entry_type autofilter_objlist[] = | |
280 | { | |
b044cda1 CW |
281 | { "crt0.o", 6 }, |
282 | { "crt1.o", 6 }, | |
283 | { "crt2.o", 6 }, | |
5b784096 DD |
284 | { "dllcrt1.o", 9 }, |
285 | { "dllcrt2.o", 9 }, | |
59d28a94 | 286 | { "gcrt0.o", 7 }, |
663dd378 | 287 | { "gcrt1.o", 7 }, |
b7a26f91 | 288 | { "gcrt2.o", 7 }, |
70b0be79 CF |
289 | { "crtbegin.o", 10 }, |
290 | { "crtend.o", 8 }, | |
b044cda1 CW |
291 | { NULL, 0 } |
292 | }; | |
775cabad NC |
293 | |
294 | static autofilter_entry_type autofilter_symbolprefixlist[] = | |
295 | { | |
53baae48 | 296 | { "__imp_", 6 }, |
775cabad | 297 | /* Do __imp_ explicitly to save time. */ |
b044cda1 | 298 | { "__rtti_", 7 }, |
39cebe23 NC |
299 | /* Don't re-export auto-imported symbols. */ |
300 | { "_nm_", 4 }, | |
b044cda1 | 301 | { "__builtin_", 10 }, |
775cabad NC |
302 | /* Don't export symbols specifying internal DLL layout. */ |
303 | { "_head_", 6 }, | |
b044cda1 CW |
304 | { NULL, 0 } |
305 | }; | |
775cabad NC |
306 | |
307 | static autofilter_entry_type autofilter_symbolsuffixlist[] = | |
308 | { | |
b044cda1 CW |
309 | { "_iname", 6 }, |
310 | { NULL, 0 } | |
311 | }; | |
312 | ||
c6c37250 DD |
313 | #define U(str) (pe_details->underscored ? "_" str : str) |
314 | ||
315 | void | |
1579bae1 | 316 | pe_dll_id_target (const char *target) |
c6c37250 DD |
317 | { |
318 | int i; | |
775cabad | 319 | |
d643799d | 320 | for (i = 0; pe_detail_list[i].target_name; i++) |
9d68bc82 DD |
321 | if (strcmp (pe_detail_list[i].target_name, target) == 0 |
322 | || strcmp (pe_detail_list[i].object_target, target) == 0) | |
c6c37250 | 323 | { |
d643799d | 324 | pe_details = pe_detail_list + i; |
c6c37250 DD |
325 | return; |
326 | } | |
327 | einfo (_("%XUnsupported PEI architecture: %s\n"), target); | |
328 | exit (1); | |
329 | } | |
330 | ||
b7a26f91 | 331 | /* Helper functions for qsort. Relocs must be sorted so that we can write |
775cabad | 332 | them out by pages. */ |
252b5132 | 333 | |
775cabad NC |
334 | typedef struct |
335 | { | |
336 | bfd_vma vma; | |
337 | char type; | |
338 | short extra; | |
339 | } | |
340 | reloc_data_type; | |
c6c37250 | 341 | |
252b5132 | 342 | static int |
1579bae1 | 343 | reloc_sort (const void *va, const void *vb) |
252b5132 | 344 | { |
1579bae1 AM |
345 | bfd_vma a = ((const reloc_data_type *) va)->vma; |
346 | bfd_vma b = ((const reloc_data_type *) vb)->vma; | |
775cabad | 347 | |
c6c37250 | 348 | return (a > b) ? 1 : ((a < b) ? -1 : 0); |
252b5132 RH |
349 | } |
350 | ||
351 | static int | |
1579bae1 | 352 | pe_export_sort (const void *va, const void *vb) |
252b5132 | 353 | { |
1579bae1 AM |
354 | const def_file_export *a = va; |
355 | const def_file_export *b = vb; | |
775cabad | 356 | |
252b5132 RH |
357 | return strcmp (a->name, b->name); |
358 | } | |
359 | ||
775cabad | 360 | /* Read and process the .DEF file. */ |
252b5132 RH |
361 | |
362 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
363 | exported_symbol_sections[i] to tag whether or not the symbol was | |
5cc18311 | 364 | defined, since we can't export symbols we don't have. */ |
252b5132 RH |
365 | |
366 | static bfd_vma *exported_symbol_offsets; | |
198beae2 | 367 | static struct bfd_section **exported_symbol_sections; |
252b5132 RH |
368 | static int export_table_size; |
369 | static int count_exported; | |
370 | static int count_exported_byname; | |
371 | static int count_with_ordinals; | |
372 | static const char *dll_name; | |
373 | static int min_ordinal, max_ordinal; | |
374 | static int *exported_symbols; | |
375 | ||
775cabad NC |
376 | typedef struct exclude_list_struct |
377 | { | |
378 | char *string; | |
379 | struct exclude_list_struct *next; | |
658957db | 380 | int type; |
775cabad NC |
381 | } |
382 | exclude_list_struct; | |
86b1cc60 | 383 | |
252b5132 RH |
384 | static struct exclude_list_struct *excludes = 0; |
385 | ||
386 | void | |
1579bae1 | 387 | pe_dll_add_excludes (const char *new_excludes, const int type) |
252b5132 RH |
388 | { |
389 | char *local_copy; | |
390 | char *exclude_string; | |
391 | ||
392 | local_copy = xstrdup (new_excludes); | |
393 | ||
394 | exclude_string = strtok (local_copy, ",:"); | |
395 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
396 | { | |
397 | struct exclude_list_struct *new_exclude; | |
398 | ||
1579bae1 AM |
399 | new_exclude = xmalloc (sizeof (struct exclude_list_struct)); |
400 | new_exclude->string = xmalloc (strlen (exclude_string) + 1); | |
252b5132 | 401 | strcpy (new_exclude->string, exclude_string); |
70b0be79 | 402 | new_exclude->type = type; |
252b5132 RH |
403 | new_exclude->next = excludes; |
404 | excludes = new_exclude; | |
405 | } | |
406 | ||
407 | free (local_copy); | |
408 | } | |
409 | ||
70b0be79 | 410 | |
775cabad NC |
411 | /* abfd is a bfd containing n (or NULL) |
412 | It can be used for contextual checks. */ | |
413 | ||
252b5132 | 414 | static int |
1579bae1 | 415 | auto_export (bfd *abfd, def_file *d, const char *n) |
252b5132 RH |
416 | { |
417 | int i; | |
418 | struct exclude_list_struct *ex; | |
b044cda1 | 419 | autofilter_entry_type *afptr; |
70b0be79 CF |
420 | const char * libname = 0; |
421 | if (abfd && abfd->my_archive) | |
422 | libname = lbasename (abfd->my_archive->filename); | |
b044cda1 | 423 | |
775cabad | 424 | /* We should not re-export imported stuff. */ |
13ed4151 | 425 | if (strncmp (n, "_imp_", 5) == 0) |
b044cda1 CW |
426 | return 0; |
427 | ||
252b5132 RH |
428 | for (i = 0; i < d->num_exports; i++) |
429 | if (strcmp (d->exports[i].name, n) == 0) | |
430 | return 0; | |
775cabad | 431 | |
252b5132 RH |
432 | if (pe_dll_do_default_excludes) |
433 | { | |
663dd378 | 434 | const char * p; |
775cabad NC |
435 | int len; |
436 | ||
b044cda1 | 437 | if (pe_dll_extra_pe_debug) |
775cabad NC |
438 | printf ("considering exporting: %s, abfd=%p, abfd->my_arc=%p\n", |
439 | n, abfd, abfd->my_archive); | |
b044cda1 CW |
440 | |
441 | /* First of all, make context checks: | |
1579bae1 | 442 | Don't export anything from standard libs. */ |
658957db | 443 | if (libname) |
b044cda1 CW |
444 | { |
445 | afptr = autofilter_liblist; | |
775cabad | 446 | |
b044cda1 CW |
447 | while (afptr->name) |
448 | { | |
70b0be79 | 449 | if (strncmp (libname, afptr->name, afptr->len) == 0 ) |
b044cda1 CW |
450 | return 0; |
451 | afptr++; | |
452 | } | |
453 | } | |
454 | ||
775cabad | 455 | /* Next, exclude symbols from certain startup objects. */ |
775cabad | 456 | |
59d28a94 | 457 | if (abfd && (p = lbasename (abfd->filename))) |
663dd378 | 458 | { |
b7a26f91 KH |
459 | afptr = autofilter_objlist; |
460 | while (afptr->name) | |
59d28a94 | 461 | { |
b7a26f91 KH |
462 | if (strcmp (p, afptr->name) == 0) |
463 | return 0; | |
59d28a94 | 464 | afptr++; |
663dd378 | 465 | } |
775cabad | 466 | } |
b044cda1 CW |
467 | |
468 | /* Don't try to blindly exclude all symbols | |
469 | that begin with '__'; this was tried and | |
5b8273bf NC |
470 | it is too restrictive. Instead we have |
471 | a target specific list to use: */ | |
472 | afptr = pe_details->autofilter_symbollist; | |
b044cda1 CW |
473 | while (afptr->name) |
474 | { | |
475 | if (strcmp (n, afptr->name) == 0) | |
476 | return 0; | |
775cabad | 477 | |
b7a26f91 | 478 | afptr++; |
b044cda1 CW |
479 | } |
480 | ||
775cabad | 481 | /* Next, exclude symbols starting with ... */ |
b044cda1 CW |
482 | afptr = autofilter_symbolprefixlist; |
483 | while (afptr->name) | |
484 | { | |
485 | if (strncmp (n, afptr->name, afptr->len) == 0) | |
486 | return 0; | |
775cabad | 487 | |
b7a26f91 | 488 | afptr++; |
b044cda1 CW |
489 | } |
490 | ||
775cabad NC |
491 | /* Finally, exclude symbols ending with ... */ |
492 | len = strlen (n); | |
493 | afptr = autofilter_symbolsuffixlist; | |
494 | while (afptr->name) | |
495 | { | |
b7a26f91 | 496 | if ((len >= afptr->len) |
775cabad | 497 | /* Add 1 to insure match with trailing '\0'. */ |
b7a26f91 KH |
498 | && strncmp (n + len - afptr->len, afptr->name, |
499 | afptr->len + 1) == 0) | |
775cabad NC |
500 | return 0; |
501 | ||
b7a26f91 | 502 | afptr++; |
775cabad | 503 | } |
252b5132 | 504 | } |
775cabad | 505 | |
252b5132 | 506 | for (ex = excludes; ex; ex = ex->next) |
70b0be79 CF |
507 | { |
508 | if (ex->type == 1) /* exclude-libs */ | |
509 | { | |
510 | if (libname | |
511 | && ((strcmp (libname, ex->string) == 0) | |
512 | || (strcasecmp ("ALL", ex->string) == 0))) | |
513 | return 0; | |
514 | } | |
515 | else if (strcmp (n, ex->string) == 0) | |
658957db | 516 | return 0; |
70b0be79 | 517 | } |
775cabad | 518 | |
252b5132 RH |
519 | return 1; |
520 | } | |
521 | ||
522 | static void | |
1579bae1 | 523 | process_def_file (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
252b5132 RH |
524 | { |
525 | int i, j; | |
526 | struct bfd_link_hash_entry *blhe; | |
527 | bfd *b; | |
198beae2 | 528 | struct bfd_section *s; |
d643799d | 529 | def_file_export *e = 0; |
252b5132 RH |
530 | |
531 | if (!pe_def_file) | |
532 | pe_def_file = def_file_empty (); | |
533 | ||
534 | /* First, run around to all the objects looking for the .drectve | |
86b1cc60 | 535 | sections, and push those into the def file too. */ |
252b5132 RH |
536 | for (b = info->input_bfds; b; b = b->link_next) |
537 | { | |
538 | s = bfd_get_section_by_name (b, ".drectve"); | |
539 | if (s) | |
540 | { | |
eea6121a | 541 | long size = s->size; |
252b5132 | 542 | char *buf = xmalloc (size); |
775cabad | 543 | |
252b5132 RH |
544 | bfd_get_section_contents (b, s, buf, 0, size); |
545 | def_file_add_directive (pe_def_file, buf, size); | |
546 | free (buf); | |
547 | } | |
548 | } | |
549 | ||
2b817be1 NC |
550 | /* If we are not building a DLL, when there are no exports |
551 | we do not build an export table at all. */ | |
552 | if (!pe_dll_export_everything && pe_def_file->num_exports == 0 | |
7b0eaa22 | 553 | && info->executable) |
2b817be1 NC |
554 | return; |
555 | ||
86b1cc60 | 556 | /* Now, maybe export everything else the default way. */ |
252b5132 RH |
557 | if (pe_dll_export_everything || pe_def_file->num_exports == 0) |
558 | { | |
559 | for (b = info->input_bfds; b; b = b->link_next) | |
560 | { | |
561 | asymbol **symbols; | |
562 | int nsyms, symsize; | |
563 | ||
564 | symsize = bfd_get_symtab_upper_bound (b); | |
1579bae1 | 565 | symbols = xmalloc (symsize); |
252b5132 RH |
566 | nsyms = bfd_canonicalize_symtab (b, symbols); |
567 | ||
568 | for (j = 0; j < nsyms; j++) | |
569 | { | |
d643799d | 570 | /* We should export symbols which are either global or not |
1579bae1 AM |
571 | anything at all. (.bss data is the latter) |
572 | We should not export undefined symbols. */ | |
b044cda1 CW |
573 | if (symbols[j]->section != &bfd_und_section |
574 | && ((symbols[j]->flags & BSF_GLOBAL) | |
575 | || (symbols[j]->flags == BFD_FORT_COMM_DEFAULT_VALUE))) | |
252b5132 RH |
576 | { |
577 | const char *sn = symbols[j]->name; | |
b044cda1 | 578 | |
775cabad | 579 | /* We should not re-export imported stuff. */ |
b044cda1 | 580 | { |
1579bae1 | 581 | char *name = xmalloc (strlen (sn) + 2 + 6); |
b044cda1 | 582 | sprintf (name, "%s%s", U("_imp_"), sn); |
775cabad | 583 | |
b044cda1 | 584 | blhe = bfd_link_hash_lookup (info->hash, name, |
b34976b6 | 585 | FALSE, FALSE, FALSE); |
b044cda1 CW |
586 | free (name); |
587 | ||
b7a26f91 | 588 | if (blhe && blhe->type == bfd_link_hash_defined) |
b044cda1 CW |
589 | continue; |
590 | } | |
591 | ||
252b5132 RH |
592 | if (*sn == '_') |
593 | sn++; | |
775cabad | 594 | |
b044cda1 CW |
595 | if (auto_export (b, pe_def_file, sn)) |
596 | { | |
597 | def_file_export *p; | |
598 | p=def_file_add_export (pe_def_file, sn, 0, -1); | |
775cabad | 599 | /* Fill data flag properly, from dlltool.c. */ |
b044cda1 CW |
600 | p->flag_data = !(symbols[j]->flags & BSF_FUNCTION); |
601 | } | |
252b5132 RH |
602 | } |
603 | } | |
604 | } | |
605 | } | |
606 | ||
607 | #undef NE | |
608 | #define NE pe_def_file->num_exports | |
609 | ||
86b1cc60 | 610 | /* Canonicalize the export list. */ |
252b5132 RH |
611 | if (pe_dll_kill_ats) |
612 | { | |
613 | for (i = 0; i < NE; i++) | |
614 | { | |
615 | if (strchr (pe_def_file->exports[i].name, '@')) | |
616 | { | |
86b1cc60 | 617 | /* This will preserve internal_name, which may have been |
1579bae1 AM |
618 | pointing to the same memory as name, or might not |
619 | have. */ | |
620 | int lead_at = (*pe_def_file->exports[i].name == '@'); | |
c9e38879 | 621 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
a8d701fd | 622 | char *tmp_at = strchr (tmp, '@'); |
775cabad | 623 | |
a8d701fd DS |
624 | if (tmp_at) |
625 | *tmp_at = 0; | |
626 | else | |
627 | einfo (_("%XCannot export %s: invalid export name\n"), | |
628 | pe_def_file->exports[i].name); | |
252b5132 RH |
629 | pe_def_file->exports[i].name = tmp; |
630 | } | |
631 | } | |
632 | } | |
633 | ||
634 | if (pe_dll_stdcall_aliases) | |
635 | { | |
636 | for (i = 0; i < NE; i++) | |
637 | { | |
638 | if (strchr (pe_def_file->exports[i].name, '@')) | |
639 | { | |
1579bae1 | 640 | int lead_at = (*pe_def_file->exports[i].name == '@'); |
c9e38879 | 641 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
775cabad | 642 | |
252b5132 | 643 | *(strchr (tmp, '@')) = 0; |
b044cda1 | 644 | if (auto_export (NULL, pe_def_file, tmp)) |
252b5132 | 645 | def_file_add_export (pe_def_file, tmp, |
b044cda1 CW |
646 | pe_def_file->exports[i].internal_name, |
647 | -1); | |
252b5132 RH |
648 | else |
649 | free (tmp); | |
650 | } | |
651 | } | |
652 | } | |
653 | ||
86b1cc60 KH |
654 | /* Convenience, but watch out for it changing. */ |
655 | e = pe_def_file->exports; | |
252b5132 | 656 | |
1579bae1 | 657 | exported_symbol_offsets = xmalloc (NE * sizeof (bfd_vma)); |
198beae2 | 658 | exported_symbol_sections = xmalloc (NE * sizeof (struct bfd_section *)); |
252b5132 | 659 | |
198beae2 | 660 | memset (exported_symbol_sections, 0, NE * sizeof (struct bfd_section *)); |
252b5132 RH |
661 | max_ordinal = 0; |
662 | min_ordinal = 65536; | |
663 | count_exported = 0; | |
664 | count_exported_byname = 0; | |
665 | count_with_ordinals = 0; | |
666 | ||
1579bae1 AM |
667 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), |
668 | pe_export_sort); | |
252b5132 RH |
669 | for (i = 0, j = 0; i < NE; i++) |
670 | { | |
671 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
672 | { | |
870df5dc | 673 | /* This is a duplicate. */ |
252b5132 RH |
674 | if (e[j - 1].ordinal != -1 |
675 | && e[i].ordinal != -1 | |
676 | && e[j - 1].ordinal != e[i].ordinal) | |
677 | { | |
870df5dc NC |
678 | if (pe_dll_warn_dup_exports) |
679 | /* xgettext:c-format */ | |
486e80e2 | 680 | einfo (_("%XError, duplicate EXPORT with ordinals: %s (%d vs %d)\n"), |
870df5dc | 681 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); |
252b5132 RH |
682 | } |
683 | else | |
684 | { | |
870df5dc NC |
685 | if (pe_dll_warn_dup_exports) |
686 | /* xgettext:c-format */ | |
687 | einfo (_("Warning, duplicate EXPORT: %s\n"), | |
688 | e[j - 1].name); | |
252b5132 | 689 | } |
775cabad | 690 | |
486e80e2 | 691 | if (e[i].ordinal != -1) |
252b5132 RH |
692 | e[j - 1].ordinal = e[i].ordinal; |
693 | e[j - 1].flag_private |= e[i].flag_private; | |
694 | e[j - 1].flag_constant |= e[i].flag_constant; | |
695 | e[j - 1].flag_noname |= e[i].flag_noname; | |
696 | e[j - 1].flag_data |= e[i].flag_data; | |
697 | } | |
698 | else | |
699 | { | |
700 | if (i != j) | |
701 | e[j] = e[i]; | |
702 | j++; | |
703 | } | |
704 | } | |
705 | pe_def_file->num_exports = j; /* == NE */ | |
706 | ||
707 | for (i = 0; i < NE; i++) | |
708 | { | |
1579bae1 | 709 | char *name; |
775cabad | 710 | |
a8d701fd DS |
711 | /* Check for forward exports */ |
712 | if (strchr (pe_def_file->exports[i].internal_name, '.')) | |
713 | { | |
714 | count_exported++; | |
715 | if (!pe_def_file->exports[i].flag_noname) | |
716 | count_exported_byname++; | |
717 | ||
718 | pe_def_file->exports[i].flag_forward = 1; | |
719 | ||
720 | if (pe_def_file->exports[i].ordinal != -1) | |
721 | { | |
722 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
723 | max_ordinal = pe_def_file->exports[i].ordinal; | |
724 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
725 | min_ordinal = pe_def_file->exports[i].ordinal; | |
726 | count_with_ordinals++; | |
727 | } | |
728 | ||
729 | continue; | |
730 | } | |
731 | ||
1579bae1 | 732 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 NC |
733 | if (pe_details->underscored |
734 | && (*pe_def_file->exports[i].internal_name != '@')) | |
c6c37250 DD |
735 | { |
736 | *name = '_'; | |
737 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
738 | } | |
739 | else | |
740 | strcpy (name, pe_def_file->exports[i].internal_name); | |
252b5132 RH |
741 | |
742 | blhe = bfd_link_hash_lookup (info->hash, | |
743 | name, | |
b34976b6 | 744 | FALSE, FALSE, TRUE); |
252b5132 | 745 | |
8a5b676c | 746 | if (blhe |
d643799d | 747 | && (blhe->type == bfd_link_hash_defined |
8a5b676c | 748 | || (blhe->type == bfd_link_hash_common))) |
252b5132 RH |
749 | { |
750 | count_exported++; | |
751 | if (!pe_def_file->exports[i].flag_noname) | |
752 | count_exported_byname++; | |
8a5b676c DD |
753 | |
754 | /* Only fill in the sections. The actual offsets are computed | |
755 | in fill_exported_offsets() after common symbols are laid | |
756 | out. */ | |
d643799d | 757 | if (blhe->type == bfd_link_hash_defined) |
8a5b676c DD |
758 | exported_symbol_sections[i] = blhe->u.def.section; |
759 | else | |
760 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
5cc18311 | 761 | |
252b5132 RH |
762 | if (pe_def_file->exports[i].ordinal != -1) |
763 | { | |
764 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
765 | max_ordinal = pe_def_file->exports[i].ordinal; | |
766 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
767 | min_ordinal = pe_def_file->exports[i].ordinal; | |
768 | count_with_ordinals++; | |
769 | } | |
770 | } | |
771 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
772 | { | |
773 | /* xgettext:c-format */ | |
774 | einfo (_("%XCannot export %s: symbol not defined\n"), | |
775 | pe_def_file->exports[i].internal_name); | |
776 | } | |
777 | else if (blhe) | |
778 | { | |
779 | /* xgettext:c-format */ | |
780 | einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"), | |
781 | pe_def_file->exports[i].internal_name, | |
782 | blhe->type, bfd_link_hash_defined); | |
783 | } | |
784 | else | |
785 | { | |
786 | /* xgettext:c-format */ | |
787 | einfo (_("%XCannot export %s: symbol not found\n"), | |
788 | pe_def_file->exports[i].internal_name); | |
789 | } | |
790 | free (name); | |
791 | } | |
792 | } | |
793 | ||
775cabad | 794 | /* Build the bfd that will contain .edata and .reloc sections. */ |
252b5132 RH |
795 | |
796 | static void | |
1579bae1 | 797 | build_filler_bfd (int include_edata) |
252b5132 RH |
798 | { |
799 | lang_input_statement_type *filler_file; | |
800 | filler_file = lang_add_input_file ("dll stuff", | |
801 | lang_input_file_is_fake_enum, | |
802 | NULL); | |
803 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", output_bfd); | |
804 | if (filler_bfd == NULL | |
805 | || !bfd_set_arch_mach (filler_bfd, | |
806 | bfd_get_arch (output_bfd), | |
807 | bfd_get_mach (output_bfd))) | |
808 | { | |
36230712 | 809 | einfo ("%X%P: can not create BFD: %E\n"); |
252b5132 RH |
810 | return; |
811 | } | |
812 | ||
c6c37250 | 813 | if (include_edata) |
252b5132 | 814 | { |
c6c37250 DD |
815 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
816 | if (edata_s == NULL | |
817 | || !bfd_set_section_flags (filler_bfd, edata_s, | |
818 | (SEC_HAS_CONTENTS | |
819 | | SEC_ALLOC | |
820 | | SEC_LOAD | |
821 | | SEC_KEEP | |
822 | | SEC_IN_MEMORY))) | |
823 | { | |
824 | einfo ("%X%P: can not create .edata section: %E\n"); | |
825 | return; | |
826 | } | |
827 | bfd_set_section_size (filler_bfd, edata_s, edata_sz); | |
252b5132 | 828 | } |
252b5132 RH |
829 | |
830 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
831 | if (reloc_s == NULL | |
832 | || !bfd_set_section_flags (filler_bfd, reloc_s, | |
833 | (SEC_HAS_CONTENTS | |
834 | | SEC_ALLOC | |
835 | | SEC_LOAD | |
836 | | SEC_KEEP | |
837 | | SEC_IN_MEMORY))) | |
838 | { | |
839 | einfo ("%X%P: can not create .reloc section: %E\n"); | |
840 | return; | |
841 | } | |
775cabad | 842 | |
252b5132 RH |
843 | bfd_set_section_size (filler_bfd, reloc_s, 0); |
844 | ||
845 | ldlang_add_file (filler_file); | |
846 | } | |
847 | ||
775cabad | 848 | /* Gather all the exported symbols and build the .edata section. */ |
252b5132 RH |
849 | |
850 | static void | |
1579bae1 | 851 | generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 RH |
852 | { |
853 | int i, next_ordinal; | |
854 | int name_table_size = 0; | |
855 | const char *dlnp; | |
856 | ||
857 | /* First, we need to know how many exported symbols there are, | |
5cc18311 | 858 | and what the range of ordinals is. */ |
252b5132 | 859 | if (pe_def_file->name) |
775cabad | 860 | dll_name = pe_def_file->name; |
252b5132 RH |
861 | else |
862 | { | |
863 | dll_name = abfd->filename; | |
775cabad | 864 | |
252b5132 | 865 | for (dlnp = dll_name; *dlnp; dlnp++) |
775cabad NC |
866 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') |
867 | dll_name = dlnp + 1; | |
252b5132 RH |
868 | } |
869 | ||
870 | if (count_with_ordinals && max_ordinal > count_exported) | |
871 | { | |
872 | if (min_ordinal > max_ordinal - count_exported + 1) | |
873 | min_ordinal = max_ordinal - count_exported + 1; | |
874 | } | |
875 | else | |
876 | { | |
877 | min_ordinal = 1; | |
878 | max_ordinal = count_exported; | |
879 | } | |
252b5132 | 880 | |
775cabad | 881 | export_table_size = max_ordinal - min_ordinal + 1; |
1579bae1 | 882 | exported_symbols = xmalloc (export_table_size * sizeof (int)); |
252b5132 RH |
883 | for (i = 0; i < export_table_size; i++) |
884 | exported_symbols[i] = -1; | |
885 | ||
86b1cc60 | 886 | /* Now we need to assign ordinals to those that don't have them. */ |
252b5132 RH |
887 | for (i = 0; i < NE; i++) |
888 | { | |
a8d701fd DS |
889 | if (exported_symbol_sections[i] || |
890 | pe_def_file->exports[i].flag_forward) | |
252b5132 RH |
891 | { |
892 | if (pe_def_file->exports[i].ordinal != -1) | |
893 | { | |
894 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
895 | int pi = exported_symbols[ei]; | |
775cabad | 896 | |
252b5132 RH |
897 | if (pi != -1) |
898 | { | |
899 | /* xgettext:c-format */ | |
486e80e2 | 900 | einfo (_("%XError, ordinal used twice: %d (%s vs %s)\n"), |
252b5132 RH |
901 | pe_def_file->exports[i].ordinal, |
902 | pe_def_file->exports[i].name, | |
903 | pe_def_file->exports[pi].name); | |
904 | } | |
905 | exported_symbols[ei] = i; | |
906 | } | |
907 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
908 | } | |
a8d701fd DS |
909 | |
910 | /* Reserve space for the forward name. */ | |
911 | if (pe_def_file->exports[i].flag_forward) | |
912 | { | |
913 | name_table_size += strlen (pe_def_file->exports[i].internal_name) + 1; | |
914 | } | |
252b5132 RH |
915 | } |
916 | ||
917 | next_ordinal = min_ordinal; | |
918 | for (i = 0; i < NE; i++) | |
a8d701fd DS |
919 | if ((exported_symbol_sections[i] || |
920 | pe_def_file->exports[i].flag_forward) && | |
921 | pe_def_file->exports[i].ordinal == -1) | |
922 | { | |
923 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
924 | next_ordinal++; | |
775cabad | 925 | |
a8d701fd DS |
926 | exported_symbols[next_ordinal - min_ordinal] = i; |
927 | pe_def_file->exports[i].ordinal = next_ordinal; | |
928 | } | |
252b5132 | 929 | |
86b1cc60 | 930 | /* OK, now we can allocate some memory. */ |
775cabad NC |
931 | edata_sz = (40 /* directory */ |
932 | + 4 * export_table_size /* addresses */ | |
252b5132 RH |
933 | + 4 * count_exported_byname /* name ptrs */ |
934 | + 2 * count_exported_byname /* ordinals */ | |
935 | + name_table_size + strlen (dll_name) + 1); | |
936 | } | |
937 | ||
8a5b676c DD |
938 | /* Fill the exported symbol offsets. The preliminary work has already |
939 | been done in process_def_file(). */ | |
940 | ||
941 | static void | |
1579bae1 | 942 | fill_exported_offsets (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
8a5b676c | 943 | { |
f0c87f88 | 944 | int i; |
8a5b676c | 945 | struct bfd_link_hash_entry *blhe; |
5cc18311 | 946 | |
8a5b676c DD |
947 | for (i = 0; i < pe_def_file->num_exports; i++) |
948 | { | |
1579bae1 | 949 | char *name; |
775cabad | 950 | |
1579bae1 | 951 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 | 952 | if (pe_details->underscored |
1579bae1 | 953 | && *pe_def_file->exports[i].internal_name != '@') |
8a5b676c DD |
954 | { |
955 | *name = '_'; | |
956 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
957 | } | |
958 | else | |
959 | strcpy (name, pe_def_file->exports[i].internal_name); | |
960 | ||
961 | blhe = bfd_link_hash_lookup (info->hash, | |
962 | name, | |
b34976b6 | 963 | FALSE, FALSE, TRUE); |
8a5b676c | 964 | |
1579bae1 | 965 | if (blhe && blhe->type == bfd_link_hash_defined) |
775cabad NC |
966 | exported_symbol_offsets[i] = blhe->u.def.value; |
967 | ||
8a5b676c DD |
968 | free (name); |
969 | } | |
970 | } | |
971 | ||
252b5132 | 972 | static void |
1579bae1 | 973 | fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 | 974 | { |
03a1c9a7 | 975 | int s, hint; |
252b5132 | 976 | unsigned char *edirectory; |
2f9636ba AM |
977 | unsigned char *eaddresses; |
978 | unsigned char *enameptrs; | |
979 | unsigned char *eordinals; | |
47639182 | 980 | char *enamestr; |
252b5132 RH |
981 | time_t now; |
982 | ||
983 | time (&now); | |
984 | ||
1579bae1 | 985 | edata_d = xmalloc (edata_sz); |
252b5132 | 986 | |
86b1cc60 | 987 | /* Note use of array pointer math here. */ |
252b5132 | 988 | edirectory = edata_d; |
2f9636ba AM |
989 | eaddresses = edata_d + 40; |
990 | enameptrs = eaddresses + 4 * export_table_size; | |
991 | eordinals = enameptrs + 4 * count_exported_byname; | |
47639182 | 992 | enamestr = (char *) eordinals + 2 * count_exported_byname; |
252b5132 | 993 | |
1579bae1 AM |
994 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) \ |
995 | + edata_s->output_section->vma - image_base) | |
252b5132 | 996 | |
c2a94a7a | 997 | memset (edata_d, 0, edata_sz); |
252b5132 RH |
998 | bfd_put_32 (abfd, now, edata_d + 4); |
999 | if (pe_def_file->version_major != -1) | |
1000 | { | |
1001 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
1002 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
1003 | } | |
775cabad | 1004 | |
252b5132 RH |
1005 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); |
1006 | strcpy (enamestr, dll_name); | |
1007 | enamestr += strlen (enamestr) + 1; | |
1008 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
1009 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
1010 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
1011 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
1012 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
1013 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
1014 | ||
8a5b676c DD |
1015 | fill_exported_offsets (abfd, info); |
1016 | ||
03a1c9a7 NC |
1017 | /* Ok, now for the filling in part. |
1018 | Scan alphabetically - ie the ordering in the exports[] table, | |
1019 | rather than by ordinal - the ordering in the exported_symbol[] | |
1020 | table. See dlltool.c and: | |
1021 | http://sources.redhat.com/ml/binutils/2003-04/msg00379.html | |
1579bae1 | 1022 | for more information. */ |
252b5132 | 1023 | hint = 0; |
03a1c9a7 | 1024 | for (s = 0; s < NE; s++) |
252b5132 | 1025 | { |
f5a95868 | 1026 | struct bfd_section *ssec = exported_symbol_sections[s]; |
a8d701fd DS |
1027 | if (pe_def_file->exports[s].ordinal != -1 && |
1028 | (pe_def_file->exports[s].flag_forward || ssec != NULL)) | |
252b5132 | 1029 | { |
45b1f63c | 1030 | int ord = pe_def_file->exports[s].ordinal; |
252b5132 | 1031 | |
a8d701fd DS |
1032 | if (pe_def_file->exports[s].flag_forward) |
1033 | { | |
1034 | bfd_put_32 (abfd, ERVA (enamestr), | |
1035 | eaddresses + 4 * (ord - min_ordinal)); | |
1036 | ||
1037 | strcpy (enamestr, pe_def_file->exports[s].internal_name); | |
1038 | enamestr += strlen (pe_def_file->exports[s].internal_name) + 1; | |
1039 | } | |
1040 | else | |
1041 | { | |
1042 | unsigned long srva = (exported_symbol_offsets[s] | |
1043 | + ssec->output_section->vma | |
1044 | + ssec->output_offset); | |
1045 | ||
1046 | bfd_put_32 (abfd, srva - image_base, | |
1047 | eaddresses + 4 * (ord - min_ordinal)); | |
1048 | } | |
775cabad | 1049 | |
252b5132 RH |
1050 | if (!pe_def_file->exports[s].flag_noname) |
1051 | { | |
1052 | char *ename = pe_def_file->exports[s].name; | |
03a1c9a7 | 1053 | |
2f9636ba AM |
1054 | bfd_put_32 (abfd, ERVA (enamestr), enameptrs); |
1055 | enameptrs += 4; | |
252b5132 RH |
1056 | strcpy (enamestr, ename); |
1057 | enamestr += strlen (enamestr) + 1; | |
2f9636ba AM |
1058 | bfd_put_16 (abfd, ord - min_ordinal, eordinals); |
1059 | eordinals += 2; | |
252b5132 RH |
1060 | pe_def_file->exports[s].hint = hint++; |
1061 | } | |
252b5132 RH |
1062 | } |
1063 | } | |
1064 | } | |
1065 | ||
b044cda1 | 1066 | |
198beae2 | 1067 | static struct bfd_section *current_sec; |
b044cda1 CW |
1068 | |
1069 | void | |
1579bae1 AM |
1070 | pe_walk_relocs_of_symbol (struct bfd_link_info *info, |
1071 | const char *name, | |
1072 | int (*cb) (arelent *, asection *)) | |
b044cda1 CW |
1073 | { |
1074 | bfd *b; | |
0d888aac | 1075 | asection *s; |
b044cda1 CW |
1076 | |
1077 | for (b = info->input_bfds; b; b = b->link_next) | |
1078 | { | |
775cabad NC |
1079 | asymbol **symbols; |
1080 | int nsyms, symsize; | |
1081 | ||
1082 | symsize = bfd_get_symtab_upper_bound (b); | |
1579bae1 | 1083 | symbols = xmalloc (symsize); |
775cabad | 1084 | nsyms = bfd_canonicalize_symtab (b, symbols); |
b044cda1 CW |
1085 | |
1086 | for (s = b->sections; s; s = s->next) | |
1087 | { | |
775cabad NC |
1088 | arelent **relocs; |
1089 | int relsize, nrelocs, i; | |
b044cda1 CW |
1090 | int flags = bfd_get_section_flags (b, s); |
1091 | ||
775cabad | 1092 | /* Skip discarded linkonce sections. */ |
b044cda1 CW |
1093 | if (flags & SEC_LINK_ONCE |
1094 | && s->output_section == bfd_abs_section_ptr) | |
1095 | continue; | |
1096 | ||
0d888aac | 1097 | current_sec = s; |
b044cda1 | 1098 | |
b044cda1 | 1099 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1100 | relocs = xmalloc (relsize); |
b044cda1 CW |
1101 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1102 | ||
1103 | for (i = 0; i < nrelocs; i++) | |
1104 | { | |
fc0a2244 | 1105 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad NC |
1106 | |
1107 | if (!strcmp (name, sym->name)) | |
1108 | cb (relocs[i], s); | |
b044cda1 | 1109 | } |
775cabad | 1110 | |
b044cda1 | 1111 | free (relocs); |
775cabad | 1112 | |
b044cda1 CW |
1113 | /* Warning: the allocated symbols are remembered in BFD and reused |
1114 | later, so don't free them! */ | |
1115 | /* free (symbols); */ | |
1116 | } | |
1117 | } | |
1118 | } | |
1119 | ||
775cabad | 1120 | /* Gather all the relocations and build the .reloc section. */ |
252b5132 RH |
1121 | |
1122 | static void | |
1579bae1 | 1123 | generate_reloc (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
1124 | { |
1125 | ||
86b1cc60 | 1126 | /* For .reloc stuff. */ |
c6c37250 | 1127 | reloc_data_type *reloc_data; |
252b5132 RH |
1128 | int total_relocs = 0; |
1129 | int i; | |
1579bae1 | 1130 | unsigned long sec_page = (unsigned long) -1; |
252b5132 RH |
1131 | unsigned long page_ptr, page_count; |
1132 | int bi; | |
1133 | bfd *b; | |
198beae2 | 1134 | struct bfd_section *s; |
252b5132 RH |
1135 | |
1136 | total_relocs = 0; | |
1137 | for (b = info->input_bfds; b; b = b->link_next) | |
1138 | for (s = b->sections; s; s = s->next) | |
1139 | total_relocs += s->reloc_count; | |
1140 | ||
1579bae1 | 1141 | reloc_data = xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
1142 | |
1143 | total_relocs = 0; | |
1144 | bi = 0; | |
1145 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next) | |
1146 | { | |
1147 | arelent **relocs; | |
1148 | int relsize, nrelocs, i; | |
1149 | ||
1150 | for (s = b->sections; s; s = s->next) | |
1151 | { | |
1152 | unsigned long sec_vma = s->output_section->vma + s->output_offset; | |
1153 | asymbol **symbols; | |
1154 | int nsyms, symsize; | |
1155 | ||
86b1cc60 | 1156 | /* If it's not loaded, we don't need to relocate it this way. */ |
252b5132 RH |
1157 | if (!(s->output_section->flags & SEC_LOAD)) |
1158 | continue; | |
1159 | ||
1160 | /* I don't know why there would be a reloc for these, but I've | |
86b1cc60 | 1161 | seen it happen - DJ */ |
252b5132 RH |
1162 | if (s->output_section == &bfd_abs_section) |
1163 | continue; | |
1164 | ||
1165 | if (s->output_section->vma == 0) | |
1166 | { | |
86b1cc60 | 1167 | /* Huh? Shouldn't happen, but punt if it does. */ |
252b5132 RH |
1168 | einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n", |
1169 | s->output_section->name, s->output_section->index, | |
1170 | s->output_section->flags); | |
1171 | continue; | |
1172 | } | |
1173 | ||
1174 | symsize = bfd_get_symtab_upper_bound (b); | |
1579bae1 | 1175 | symbols = xmalloc (symsize); |
252b5132 RH |
1176 | nsyms = bfd_canonicalize_symtab (b, symbols); |
1177 | ||
1178 | relsize = bfd_get_reloc_upper_bound (b, s); | |
1579bae1 | 1179 | relocs = xmalloc (relsize); |
252b5132 RH |
1180 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1181 | ||
1182 | for (i = 0; i < nrelocs; i++) | |
1183 | { | |
b044cda1 | 1184 | if (pe_dll_extra_pe_debug) |
b7a26f91 | 1185 | { |
fc0a2244 | 1186 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
b7a26f91 | 1187 | printf ("rel: %s\n", sym->name); |
b044cda1 | 1188 | } |
252b5132 | 1189 | if (!relocs[i]->howto->pc_relative |
c6c37250 | 1190 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 1191 | { |
c6c37250 | 1192 | bfd_vma sym_vma; |
fc0a2244 | 1193 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad | 1194 | |
c6c37250 DD |
1195 | sym_vma = (relocs[i]->addend |
1196 | + sym->value | |
1197 | + sym->section->vma | |
1198 | + sym->section->output_offset | |
1199 | + sym->section->output_section->vma); | |
1200 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; | |
5cc18311 | 1201 | |
344a211f | 1202 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) |
5cc18311 | 1203 | |
344a211f NC |
1204 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, |
1205 | relocs[i]->howto->rightshift) | |
252b5132 | 1206 | { |
344a211f | 1207 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
1208 | reloc_data[total_relocs].type = 3; |
1209 | total_relocs++; | |
252b5132 | 1210 | break; |
344a211f NC |
1211 | case BITS_AND_SHIFT (16, 0): |
1212 | reloc_data[total_relocs].type = 2; | |
1213 | total_relocs++; | |
1214 | break; | |
1215 | case BITS_AND_SHIFT (16, 16): | |
1216 | reloc_data[total_relocs].type = 4; | |
86b1cc60 KH |
1217 | /* FIXME: we can't know the symbol's right value |
1218 | yet, but we probably can safely assume that | |
1219 | CE will relocate us in 64k blocks, so leaving | |
1220 | it zero is safe. */ | |
344a211f NC |
1221 | reloc_data[total_relocs].extra = 0; |
1222 | total_relocs++; | |
1223 | break; | |
1224 | case BITS_AND_SHIFT (26, 2): | |
1225 | reloc_data[total_relocs].type = 5; | |
1226 | total_relocs++; | |
1227 | break; | |
fea39bcb | 1228 | case BITS_AND_SHIFT (24, 2): |
d3793eaa NC |
1229 | /* FIXME: 0 is ARM_26D, it is defined in bfd/coff-arm.c |
1230 | Those ARM_xxx definitions should go in proper | |
1231 | header someday. */ | |
1232 | if (relocs[i]->howto->type == 0 | |
1233 | /* Older GNU linkers used 5 instead of 0 for this reloc. */ | |
1234 | || relocs[i]->howto->type == 5) | |
fea39bcb NC |
1235 | /* This is an ARM_26D reloc, which is an ARM_26 reloc |
1236 | that has already been fully processed during a | |
1237 | previous link stage, so ignore it here. */ | |
1238 | break; | |
1239 | /* Fall through. */ | |
252b5132 RH |
1240 | default: |
1241 | /* xgettext:c-format */ | |
1242 | einfo (_("%XError: %d-bit reloc in dll\n"), | |
1243 | relocs[i]->howto->bitsize); | |
1244 | break; | |
1245 | } | |
1246 | } | |
1247 | } | |
1248 | free (relocs); | |
86b1cc60 KH |
1249 | /* Warning: the allocated symbols are remembered in BFD and |
1250 | reused later, so don't free them! */ | |
252b5132 RH |
1251 | } |
1252 | } | |
1253 | ||
1254 | /* At this point, we have total_relocs relocation addresses in | |
1255 | reloc_addresses, which are all suitable for the .reloc section. | |
5cc18311 | 1256 | We must now create the new sections. */ |
c6c37250 | 1257 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
1258 | |
1259 | for (i = 0; i < total_relocs; i++) | |
1260 | { | |
c6c37250 | 1261 | unsigned long this_page = (reloc_data[i].vma >> 12); |
5cc18311 | 1262 | |
252b5132 RH |
1263 | if (this_page != sec_page) |
1264 | { | |
775cabad | 1265 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
252b5132 RH |
1266 | reloc_sz += 8; |
1267 | sec_page = this_page; | |
1268 | } | |
5cc18311 | 1269 | |
252b5132 | 1270 | reloc_sz += 2; |
5cc18311 | 1271 | |
344a211f NC |
1272 | if (reloc_data[i].type == 4) |
1273 | reloc_sz += 2; | |
252b5132 | 1274 | } |
b7a26f91 | 1275 | |
775cabad | 1276 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
1579bae1 AM |
1277 | reloc_d = xmalloc (reloc_sz); |
1278 | sec_page = (unsigned long) -1; | |
252b5132 | 1279 | reloc_sz = 0; |
1579bae1 | 1280 | page_ptr = (unsigned long) -1; |
252b5132 | 1281 | page_count = 0; |
775cabad | 1282 | |
252b5132 RH |
1283 | for (i = 0; i < total_relocs; i++) |
1284 | { | |
c6c37250 | 1285 | unsigned long rva = reloc_data[i].vma - image_base; |
252b5132 | 1286 | unsigned long this_page = (rva & ~0xfff); |
775cabad | 1287 | |
252b5132 RH |
1288 | if (this_page != sec_page) |
1289 | { | |
1290 | while (reloc_sz & 3) | |
1291 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1292 | |
1579bae1 | 1293 | if (page_ptr != (unsigned long) -1) |
252b5132 | 1294 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1295 | |
252b5132 RH |
1296 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); |
1297 | page_ptr = reloc_sz; | |
1298 | reloc_sz += 8; | |
1299 | sec_page = this_page; | |
1300 | page_count = 0; | |
1301 | } | |
775cabad | 1302 | |
d643799d | 1303 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type << 12), |
c6c37250 | 1304 | reloc_d + reloc_sz); |
252b5132 | 1305 | reloc_sz += 2; |
775cabad | 1306 | |
c6c37250 DD |
1307 | if (reloc_data[i].type == 4) |
1308 | { | |
1309 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
1310 | reloc_sz += 2; | |
1311 | } | |
775cabad | 1312 | |
252b5132 RH |
1313 | page_count++; |
1314 | } | |
775cabad | 1315 | |
252b5132 RH |
1316 | while (reloc_sz & 3) |
1317 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1318 | |
1579bae1 | 1319 | if (page_ptr != (unsigned long) -1) |
252b5132 | 1320 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1321 | |
eea6121a | 1322 | while (reloc_sz < reloc_s->size) |
252b5132 RH |
1323 | reloc_d[reloc_sz++] = 0; |
1324 | } | |
1325 | ||
775cabad NC |
1326 | /* Given the exiting def_file structure, print out a .DEF file that |
1327 | corresponds to it. */ | |
252b5132 RH |
1328 | |
1329 | static void | |
1579bae1 | 1330 | quoteput (char *s, FILE *f, int needs_quotes) |
252b5132 RH |
1331 | { |
1332 | char *cp; | |
775cabad | 1333 | |
252b5132 RH |
1334 | for (cp = s; *cp; cp++) |
1335 | if (*cp == '\'' | |
1336 | || *cp == '"' | |
1337 | || *cp == '\\' | |
3882b010 | 1338 | || ISSPACE (*cp) |
252b5132 RH |
1339 | || *cp == ',' |
1340 | || *cp == ';') | |
1341 | needs_quotes = 1; | |
775cabad | 1342 | |
252b5132 RH |
1343 | if (needs_quotes) |
1344 | { | |
1345 | putc ('"', f); | |
775cabad | 1346 | |
252b5132 RH |
1347 | while (*s) |
1348 | { | |
1349 | if (*s == '"' || *s == '\\') | |
1350 | putc ('\\', f); | |
775cabad | 1351 | |
252b5132 RH |
1352 | putc (*s, f); |
1353 | s++; | |
1354 | } | |
775cabad | 1355 | |
252b5132 RH |
1356 | putc ('"', f); |
1357 | } | |
1358 | else | |
1359 | fputs (s, f); | |
1360 | } | |
1361 | ||
1362 | void | |
1579bae1 | 1363 | pe_dll_generate_def_file (const char *pe_out_def_filename) |
252b5132 RH |
1364 | { |
1365 | int i; | |
1366 | FILE *out = fopen (pe_out_def_filename, "w"); | |
775cabad | 1367 | |
252b5132 | 1368 | if (out == NULL) |
775cabad NC |
1369 | /* xgettext:c-format */ |
1370 | einfo (_("%s: Can't open output def file %s\n"), | |
1371 | program_name, pe_out_def_filename); | |
252b5132 RH |
1372 | |
1373 | if (pe_def_file) | |
1374 | { | |
1375 | if (pe_def_file->name) | |
1376 | { | |
1377 | if (pe_def_file->is_dll) | |
1378 | fprintf (out, "LIBRARY "); | |
1379 | else | |
1380 | fprintf (out, "NAME "); | |
775cabad | 1381 | |
252b5132 | 1382 | quoteput (pe_def_file->name, out, 1); |
775cabad | 1383 | |
252b5132 RH |
1384 | if (pe_data (output_bfd)->pe_opthdr.ImageBase) |
1385 | fprintf (out, " BASE=0x%lx", | |
1386 | (unsigned long) pe_data (output_bfd)->pe_opthdr.ImageBase); | |
1387 | fprintf (out, "\n"); | |
1388 | } | |
1389 | ||
1390 | if (pe_def_file->description) | |
1391 | { | |
1392 | fprintf (out, "DESCRIPTION "); | |
1393 | quoteput (pe_def_file->description, out, 1); | |
1394 | fprintf (out, "\n"); | |
1395 | } | |
1396 | ||
1397 | if (pe_def_file->version_minor != -1) | |
1398 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
1399 | pe_def_file->version_minor); | |
1400 | else if (pe_def_file->version_major != -1) | |
1401 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
1402 | ||
1403 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
1404 | fprintf (out, "\n"); | |
1405 | ||
1406 | if (pe_def_file->stack_commit != -1) | |
1407 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
1408 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
1409 | else if (pe_def_file->stack_reserve != -1) | |
1410 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
775cabad | 1411 | |
252b5132 RH |
1412 | if (pe_def_file->heap_commit != -1) |
1413 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1414 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1415 | else if (pe_def_file->heap_reserve != -1) | |
1416 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1417 | ||
1418 | if (pe_def_file->num_section_defs > 0) | |
1419 | { | |
1420 | fprintf (out, "\nSECTIONS\n\n"); | |
775cabad | 1421 | |
252b5132 RH |
1422 | for (i = 0; i < pe_def_file->num_section_defs; i++) |
1423 | { | |
1424 | fprintf (out, " "); | |
1425 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
775cabad | 1426 | |
252b5132 RH |
1427 | if (pe_def_file->section_defs[i].class) |
1428 | { | |
1429 | fprintf (out, " CLASS "); | |
1430 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1431 | } | |
775cabad | 1432 | |
252b5132 RH |
1433 | if (pe_def_file->section_defs[i].flag_read) |
1434 | fprintf (out, " READ"); | |
775cabad | 1435 | |
252b5132 RH |
1436 | if (pe_def_file->section_defs[i].flag_write) |
1437 | fprintf (out, " WRITE"); | |
775cabad | 1438 | |
252b5132 RH |
1439 | if (pe_def_file->section_defs[i].flag_execute) |
1440 | fprintf (out, " EXECUTE"); | |
775cabad | 1441 | |
252b5132 RH |
1442 | if (pe_def_file->section_defs[i].flag_shared) |
1443 | fprintf (out, " SHARED"); | |
775cabad | 1444 | |
252b5132 RH |
1445 | fprintf (out, "\n"); |
1446 | } | |
1447 | } | |
1448 | ||
1449 | if (pe_def_file->num_exports > 0) | |
1450 | { | |
b044cda1 | 1451 | fprintf (out, "EXPORTS\n"); |
775cabad | 1452 | |
252b5132 RH |
1453 | for (i = 0; i < pe_def_file->num_exports; i++) |
1454 | { | |
1455 | def_file_export *e = pe_def_file->exports + i; | |
1456 | fprintf (out, " "); | |
1457 | quoteput (e->name, out, 0); | |
775cabad | 1458 | |
252b5132 RH |
1459 | if (e->internal_name && strcmp (e->internal_name, e->name)) |
1460 | { | |
1461 | fprintf (out, " = "); | |
1462 | quoteput (e->internal_name, out, 0); | |
1463 | } | |
775cabad | 1464 | |
252b5132 RH |
1465 | if (e->ordinal != -1) |
1466 | fprintf (out, " @%d", e->ordinal); | |
775cabad | 1467 | |
252b5132 RH |
1468 | if (e->flag_private) |
1469 | fprintf (out, " PRIVATE"); | |
775cabad | 1470 | |
252b5132 RH |
1471 | if (e->flag_constant) |
1472 | fprintf (out, " CONSTANT"); | |
775cabad | 1473 | |
252b5132 RH |
1474 | if (e->flag_noname) |
1475 | fprintf (out, " NONAME"); | |
775cabad | 1476 | |
252b5132 RH |
1477 | if (e->flag_data) |
1478 | fprintf (out, " DATA"); | |
1479 | ||
1480 | fprintf (out, "\n"); | |
1481 | } | |
1482 | } | |
1483 | ||
1484 | if (pe_def_file->num_imports > 0) | |
1485 | { | |
1486 | fprintf (out, "\nIMPORTS\n\n"); | |
775cabad | 1487 | |
252b5132 RH |
1488 | for (i = 0; i < pe_def_file->num_imports; i++) |
1489 | { | |
1490 | def_file_import *im = pe_def_file->imports + i; | |
1491 | fprintf (out, " "); | |
775cabad | 1492 | |
252b5132 RH |
1493 | if (im->internal_name |
1494 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1495 | { | |
1496 | quoteput (im->internal_name, out, 0); | |
1497 | fprintf (out, " = "); | |
1498 | } | |
775cabad | 1499 | |
252b5132 RH |
1500 | quoteput (im->module->name, out, 0); |
1501 | fprintf (out, "."); | |
775cabad | 1502 | |
252b5132 RH |
1503 | if (im->name) |
1504 | quoteput (im->name, out, 0); | |
1505 | else | |
1506 | fprintf (out, "%d", im->ordinal); | |
775cabad | 1507 | |
252b5132 RH |
1508 | fprintf (out, "\n"); |
1509 | } | |
1510 | } | |
1511 | } | |
1512 | else | |
1513 | fprintf (out, _("; no contents available\n")); | |
1514 | ||
1515 | if (fclose (out) == EOF) | |
775cabad NC |
1516 | /* xgettext:c-format */ |
1517 | einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename); | |
252b5132 RH |
1518 | } |
1519 | ||
775cabad | 1520 | /* Generate the import library. */ |
252b5132 RH |
1521 | |
1522 | static asymbol **symtab; | |
1523 | static int symptr; | |
1524 | static int tmp_seq; | |
1525 | static const char *dll_filename; | |
1526 | static char *dll_symname; | |
1527 | ||
1528 | #define UNDSEC (asection *) &bfd_und_section | |
1529 | ||
1530 | static asection * | |
1579bae1 | 1531 | quick_section (bfd *abfd, const char *name, int flags, int align) |
252b5132 RH |
1532 | { |
1533 | asection *sec; | |
1534 | asymbol *sym; | |
1535 | ||
1536 | sec = bfd_make_section_old_way (abfd, name); | |
86b1cc60 | 1537 | bfd_set_section_flags (abfd, sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP); |
252b5132 | 1538 | bfd_set_section_alignment (abfd, sec, align); |
86b1cc60 | 1539 | /* Remember to undo this before trying to link internally! */ |
252b5132 RH |
1540 | sec->output_section = sec; |
1541 | ||
1542 | sym = bfd_make_empty_symbol (abfd); | |
1543 | symtab[symptr++] = sym; | |
1544 | sym->name = sec->name; | |
1545 | sym->section = sec; | |
1546 | sym->flags = BSF_LOCAL; | |
1547 | sym->value = 0; | |
1548 | ||
1549 | return sec; | |
1550 | } | |
1551 | ||
1552 | static void | |
1579bae1 AM |
1553 | quick_symbol (bfd *abfd, |
1554 | const char *n1, | |
1555 | const char *n2, | |
1556 | const char *n3, | |
1557 | asection *sec, | |
1558 | int flags, | |
1559 | int addr) | |
252b5132 RH |
1560 | { |
1561 | asymbol *sym; | |
1579bae1 | 1562 | char *name = xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); |
775cabad | 1563 | |
252b5132 RH |
1564 | strcpy (name, n1); |
1565 | strcat (name, n2); | |
1566 | strcat (name, n3); | |
1567 | sym = bfd_make_empty_symbol (abfd); | |
1568 | sym->name = name; | |
1569 | sym->section = sec; | |
1570 | sym->flags = flags; | |
1571 | sym->value = addr; | |
1572 | symtab[symptr++] = sym; | |
1573 | } | |
1574 | ||
1575 | static arelent *reltab = 0; | |
1576 | static int relcount = 0, relsize = 0; | |
1577 | ||
1578 | static void | |
1579bae1 | 1579 | quick_reloc (bfd *abfd, int address, int which_howto, int symidx) |
252b5132 | 1580 | { |
1579bae1 | 1581 | if (relcount >= relsize - 1) |
252b5132 RH |
1582 | { |
1583 | relsize += 10; | |
1584 | if (reltab) | |
1579bae1 | 1585 | reltab = xrealloc (reltab, relsize * sizeof (arelent)); |
252b5132 | 1586 | else |
1579bae1 | 1587 | reltab = xmalloc (relsize * sizeof (arelent)); |
252b5132 RH |
1588 | } |
1589 | reltab[relcount].address = address; | |
1590 | reltab[relcount].addend = 0; | |
1591 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
1592 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
1593 | relcount++; | |
1594 | } | |
1595 | ||
1596 | static void | |
1597 | save_relocs (asection *sec) | |
1598 | { | |
1599 | int i; | |
775cabad | 1600 | |
252b5132 RH |
1601 | sec->relocation = reltab; |
1602 | sec->reloc_count = relcount; | |
1579bae1 | 1603 | sec->orelocation = xmalloc ((relcount + 1) * sizeof (arelent *)); |
d643799d | 1604 | for (i = 0; i < relcount; i++) |
252b5132 RH |
1605 | sec->orelocation[i] = sec->relocation + i; |
1606 | sec->orelocation[relcount] = 0; | |
1607 | sec->flags |= SEC_RELOC; | |
1608 | reltab = 0; | |
1609 | relcount = relsize = 0; | |
1610 | } | |
1611 | ||
775cabad NC |
1612 | /* .section .idata$2 |
1613 | .global __head_my_dll | |
1614 | __head_my_dll: | |
1615 | .rva hname | |
1616 | .long 0 | |
1617 | .long 0 | |
1618 | .rva __my_dll_iname | |
1619 | .rva fthunk | |
b7a26f91 | 1620 | |
775cabad NC |
1621 | .section .idata$5 |
1622 | .long 0 | |
1623 | fthunk: | |
b7a26f91 | 1624 | |
775cabad NC |
1625 | .section .idata$4 |
1626 | .long 0 | |
1627 | hname: */ | |
252b5132 RH |
1628 | |
1629 | static bfd * | |
1579bae1 | 1630 | make_head (bfd *parent) |
252b5132 RH |
1631 | { |
1632 | asection *id2, *id5, *id4; | |
1633 | unsigned char *d2, *d5, *d4; | |
1634 | char *oname; | |
1635 | bfd *abfd; | |
1636 | ||
1579bae1 | 1637 | oname = xmalloc (20); |
252b5132 RH |
1638 | sprintf (oname, "d%06d.o", tmp_seq); |
1639 | tmp_seq++; | |
1640 | ||
1641 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1642 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1643 | bfd_make_writable (abfd); |
1644 | ||
1645 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1646 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1647 | |
1648 | symptr = 0; | |
1579bae1 | 1649 | symtab = xmalloc (6 * sizeof (asymbol *)); |
252b5132 RH |
1650 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
1651 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1652 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
d643799d KH |
1653 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
1654 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
c6c37250 DD |
1655 | |
1656 | /* OK, pay attention here. I got confused myself looking back at | |
1657 | it. We create a four-byte section to mark the beginning of the | |
1658 | list, and we include an offset of 4 in the section, so that the | |
1659 | pointer to the list points to the *end* of this section, which is | |
5cc18311 | 1660 | the start of the list of sections from other objects. */ |
252b5132 RH |
1661 | |
1662 | bfd_set_section_size (abfd, id2, 20); | |
1579bae1 | 1663 | d2 = xmalloc (20); |
252b5132 RH |
1664 | id2->contents = d2; |
1665 | memset (d2, 0, 20); | |
775cabad | 1666 | d2[0] = d2[16] = 4; /* Reloc addend. */ |
252b5132 RH |
1667 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
1668 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
1669 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
1670 | save_relocs (id2); | |
1671 | ||
1672 | bfd_set_section_size (abfd, id5, 4); | |
1579bae1 | 1673 | d5 = xmalloc (4); |
252b5132 RH |
1674 | id5->contents = d5; |
1675 | memset (d5, 0, 4); | |
1676 | ||
1677 | bfd_set_section_size (abfd, id4, 4); | |
1579bae1 | 1678 | d4 = xmalloc (4); |
252b5132 RH |
1679 | id4->contents = d4; |
1680 | memset (d4, 0, 4); | |
1681 | ||
1682 | bfd_set_symtab (abfd, symtab, symptr); | |
1683 | ||
1684 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
1685 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1686 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
5cc18311 | 1687 | |
252b5132 RH |
1688 | bfd_make_readable (abfd); |
1689 | return abfd; | |
1690 | } | |
1691 | ||
775cabad NC |
1692 | /* .section .idata$4 |
1693 | .long 0 | |
1694 | .section .idata$5 | |
1695 | .long 0 | |
1696 | .section idata$7 | |
1697 | .global __my_dll_iname | |
1698 | __my_dll_iname: | |
1699 | .asciz "my.dll" */ | |
252b5132 RH |
1700 | |
1701 | static bfd * | |
1579bae1 | 1702 | make_tail (bfd *parent) |
252b5132 RH |
1703 | { |
1704 | asection *id4, *id5, *id7; | |
1705 | unsigned char *d4, *d5, *d7; | |
1706 | int len; | |
1707 | char *oname; | |
1708 | bfd *abfd; | |
1709 | ||
1579bae1 | 1710 | oname = xmalloc (20); |
252b5132 RH |
1711 | sprintf (oname, "d%06d.o", tmp_seq); |
1712 | tmp_seq++; | |
1713 | ||
1714 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1715 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1716 | bfd_make_writable (abfd); |
1717 | ||
1718 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1719 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1720 | |
1721 | symptr = 0; | |
1579bae1 | 1722 | symtab = xmalloc (5 * sizeof (asymbol *)); |
252b5132 RH |
1723 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
1724 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1725 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
d643799d | 1726 | quick_symbol (abfd, U (""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 RH |
1727 | |
1728 | bfd_set_section_size (abfd, id4, 4); | |
1579bae1 | 1729 | d4 = xmalloc (4); |
252b5132 RH |
1730 | id4->contents = d4; |
1731 | memset (d4, 0, 4); | |
1732 | ||
1733 | bfd_set_section_size (abfd, id5, 4); | |
1579bae1 | 1734 | d5 = xmalloc (4); |
252b5132 RH |
1735 | id5->contents = d5; |
1736 | memset (d5, 0, 4); | |
1737 | ||
d643799d | 1738 | len = strlen (dll_filename) + 1; |
252b5132 | 1739 | if (len & 1) |
d643799d | 1740 | len++; |
252b5132 | 1741 | bfd_set_section_size (abfd, id7, len); |
1579bae1 | 1742 | d7 = xmalloc (len); |
252b5132 | 1743 | id7->contents = d7; |
47639182 | 1744 | strcpy ((char *) d7, dll_filename); |
252b5132 RH |
1745 | |
1746 | bfd_set_symtab (abfd, symtab, symptr); | |
1747 | ||
1748 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1749 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1750 | bfd_set_section_contents (abfd, id7, d7, 0, len); | |
1751 | ||
1752 | bfd_make_readable (abfd); | |
1753 | return abfd; | |
1754 | } | |
1755 | ||
775cabad NC |
1756 | /* .text |
1757 | .global _function | |
1758 | .global ___imp_function | |
1759 | .global __imp__function | |
1760 | _function: | |
1761 | jmp *__imp__function: | |
b7a26f91 | 1762 | |
775cabad NC |
1763 | .section idata$7 |
1764 | .long __head_my_dll | |
b7a26f91 | 1765 | |
775cabad NC |
1766 | .section .idata$5 |
1767 | ___imp_function: | |
1768 | __imp__function: | |
1769 | iat? | |
1770 | .section .idata$4 | |
1771 | iat? | |
1772 | .section .idata$6 | |
1773 | ID<ordinal>: | |
1774 | .short <hint> | |
1775 | .asciz "function" xlate? (add underscore, kill at) */ | |
1776 | ||
1777 | static unsigned char jmp_ix86_bytes[] = | |
1778 | { | |
252b5132 RH |
1779 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 |
1780 | }; | |
1781 | ||
775cabad NC |
1782 | /* _function: |
1783 | mov.l ip+8,r0 | |
1784 | mov.l @r0,r0 | |
1785 | jmp @r0 | |
1786 | nop | |
1787 | .dw __imp_function */ | |
344a211f | 1788 | |
775cabad NC |
1789 | static unsigned char jmp_sh_bytes[] = |
1790 | { | |
344a211f NC |
1791 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 |
1792 | }; | |
1793 | ||
775cabad NC |
1794 | /* _function: |
1795 | lui $t0,<high:__imp_function> | |
1796 | lw $t0,<low:__imp_function> | |
1797 | jr $t0 | |
1798 | nop */ | |
344a211f | 1799 | |
775cabad NC |
1800 | static unsigned char jmp_mips_bytes[] = |
1801 | { | |
344a211f NC |
1802 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, |
1803 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
1804 | }; | |
252b5132 | 1805 | |
53baae48 NC |
1806 | static unsigned char jmp_arm_bytes[] = |
1807 | { | |
1808 | 0x00, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */ | |
1809 | 0x00, 0xf0, 0x9c, 0xe5, /* ldr pc, [ip] */ | |
1810 | 0, 0, 0, 0 | |
1811 | }; | |
1812 | ||
1813 | ||
252b5132 | 1814 | static bfd * |
1579bae1 | 1815 | make_one (def_file_export *exp, bfd *parent) |
252b5132 RH |
1816 | { |
1817 | asection *tx, *id7, *id5, *id4, *id6; | |
23a87948 | 1818 | unsigned char *td = NULL, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
1819 | int len; |
1820 | char *oname; | |
1821 | bfd *abfd; | |
f0c87f88 NC |
1822 | unsigned char *jmp_bytes = NULL; |
1823 | int jmp_byte_count = 0; | |
c6c37250 DD |
1824 | |
1825 | switch (pe_details->pe_arch) | |
1826 | { | |
1827 | case PE_ARCH_i386: | |
1828 | jmp_bytes = jmp_ix86_bytes; | |
1829 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
1830 | break; | |
344a211f NC |
1831 | case PE_ARCH_sh: |
1832 | jmp_bytes = jmp_sh_bytes; | |
1833 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
1834 | break; | |
1835 | case PE_ARCH_mips: | |
1836 | jmp_bytes = jmp_mips_bytes; | |
1837 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
1838 | break; | |
53baae48 NC |
1839 | case PE_ARCH_arm: |
1840 | jmp_bytes = jmp_arm_bytes; | |
1841 | jmp_byte_count = sizeof (jmp_arm_bytes); | |
1842 | break; | |
775cabad NC |
1843 | default: |
1844 | abort (); | |
c6c37250 | 1845 | } |
252b5132 | 1846 | |
1579bae1 | 1847 | oname = xmalloc (20); |
252b5132 RH |
1848 | sprintf (oname, "d%06d.o", tmp_seq); |
1849 | tmp_seq++; | |
1850 | ||
1851 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1852 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1853 | bfd_make_writable (abfd); |
1854 | ||
1855 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1856 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1857 | |
1858 | symptr = 0; | |
1579bae1 | 1859 | symtab = xmalloc (11 * sizeof (asymbol *)); |
252b5132 RH |
1860 | tx = quick_section (abfd, ".text", SEC_CODE|SEC_HAS_CONTENTS, 2); |
1861 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
1862 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1863 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
1864 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
b34976b6 | 1865 | |
c9e38879 NC |
1866 | if (*exp->internal_name == '@') |
1867 | { | |
1579bae1 AM |
1868 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
1869 | BSF_GLOBAL, 0); | |
4b7f0676 NC |
1870 | if (! exp->flag_data) |
1871 | quick_symbol (abfd, "", exp->internal_name, "", tx, BSF_GLOBAL, 0); | |
1579bae1 AM |
1872 | quick_symbol (abfd, U ("_imp_"), exp->internal_name, "", id5, |
1873 | BSF_GLOBAL, 0); | |
c9e38879 NC |
1874 | /* Fastcall applies only to functions, |
1875 | so no need for auto-import symbol. */ | |
1876 | } | |
1877 | else | |
1878 | { | |
4b7f0676 NC |
1879 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
1880 | BSF_GLOBAL, 0); | |
c9e38879 | 1881 | if (! exp->flag_data) |
1579bae1 AM |
1882 | quick_symbol (abfd, U (""), exp->internal_name, "", tx, |
1883 | BSF_GLOBAL, 0); | |
1579bae1 AM |
1884 | quick_symbol (abfd, U ("_imp__"), exp->internal_name, "", id5, |
1885 | BSF_GLOBAL, 0); | |
c9e38879 | 1886 | /* Symbol to reference ord/name of imported |
1579bae1 | 1887 | data symbol, used to implement auto-import. */ |
c9e38879 | 1888 | if (exp->flag_data) |
1579bae1 AM |
1889 | quick_symbol (abfd, U("_nm__"), exp->internal_name, "", id6, |
1890 | BSF_GLOBAL,0); | |
c9e38879 | 1891 | } |
870df5dc | 1892 | if (pe_dll_compat_implib) |
1579bae1 AM |
1893 | quick_symbol (abfd, U ("__imp_"), exp->internal_name, "", id5, |
1894 | BSF_GLOBAL, 0); | |
252b5132 | 1895 | |
23a87948 | 1896 | if (! exp->flag_data) |
775cabad NC |
1897 | { |
1898 | bfd_set_section_size (abfd, tx, jmp_byte_count); | |
1579bae1 | 1899 | td = xmalloc (jmp_byte_count); |
775cabad NC |
1900 | tx->contents = td; |
1901 | memcpy (td, jmp_bytes, jmp_byte_count); | |
1902 | ||
1903 | switch (pe_details->pe_arch) | |
1904 | { | |
1905 | case PE_ARCH_i386: | |
1906 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); | |
1907 | break; | |
1908 | case PE_ARCH_sh: | |
1909 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
1910 | break; | |
1911 | case PE_ARCH_mips: | |
1912 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
1913 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
1914 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
1915 | break; | |
53baae48 NC |
1916 | case PE_ARCH_arm: |
1917 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
1918 | break; | |
775cabad NC |
1919 | default: |
1920 | abort (); | |
1921 | } | |
1922 | save_relocs (tx); | |
1923 | } | |
252b5132 RH |
1924 | |
1925 | bfd_set_section_size (abfd, id7, 4); | |
1579bae1 | 1926 | d7 = xmalloc (4); |
252b5132 RH |
1927 | id7->contents = d7; |
1928 | memset (d7, 0, 4); | |
4b7f0676 | 1929 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 5); |
252b5132 RH |
1930 | save_relocs (id7); |
1931 | ||
1932 | bfd_set_section_size (abfd, id5, 4); | |
1579bae1 | 1933 | d5 = xmalloc (4); |
252b5132 RH |
1934 | id5->contents = d5; |
1935 | memset (d5, 0, 4); | |
775cabad | 1936 | |
252b5132 RH |
1937 | if (exp->flag_noname) |
1938 | { | |
1939 | d5[0] = exp->ordinal; | |
1940 | d5[1] = exp->ordinal >> 8; | |
1941 | d5[3] = 0x80; | |
1942 | } | |
1943 | else | |
1944 | { | |
1945 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
1946 | save_relocs (id5); | |
1947 | } | |
1948 | ||
1949 | bfd_set_section_size (abfd, id4, 4); | |
1579bae1 | 1950 | d4 = xmalloc (4); |
252b5132 RH |
1951 | id4->contents = d4; |
1952 | memset (d4, 0, 4); | |
775cabad | 1953 | |
252b5132 RH |
1954 | if (exp->flag_noname) |
1955 | { | |
c2a94a7a DD |
1956 | d4[0] = exp->ordinal; |
1957 | d4[1] = exp->ordinal >> 8; | |
1958 | d4[3] = 0x80; | |
252b5132 RH |
1959 | } |
1960 | else | |
1961 | { | |
1962 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
1963 | save_relocs (id4); | |
1964 | } | |
1965 | ||
1966 | if (exp->flag_noname) | |
1967 | { | |
1968 | len = 0; | |
1969 | bfd_set_section_size (abfd, id6, 0); | |
1970 | } | |
1971 | else | |
1972 | { | |
1973 | len = strlen (exp->name) + 3; | |
1974 | if (len & 1) | |
1975 | len++; | |
1976 | bfd_set_section_size (abfd, id6, len); | |
1579bae1 | 1977 | d6 = xmalloc (len); |
252b5132 RH |
1978 | id6->contents = d6; |
1979 | memset (d6, 0, len); | |
1980 | d6[0] = exp->hint & 0xff; | |
1981 | d6[1] = exp->hint >> 8; | |
47639182 | 1982 | strcpy ((char *) d6 + 2, exp->name); |
252b5132 RH |
1983 | } |
1984 | ||
1985 | bfd_set_symtab (abfd, symtab, symptr); | |
1986 | ||
c6c37250 | 1987 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); |
252b5132 RH |
1988 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
1989 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1990 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1991 | if (!exp->flag_noname) | |
1992 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
1993 | ||
1994 | bfd_make_readable (abfd); | |
1995 | return abfd; | |
1996 | } | |
1997 | ||
b044cda1 | 1998 | static bfd * |
1579bae1 | 1999 | make_singleton_name_thunk (const char *import, bfd *parent) |
b044cda1 | 2000 | { |
775cabad | 2001 | /* Name thunks go to idata$4. */ |
b044cda1 CW |
2002 | asection *id4; |
2003 | unsigned char *d4; | |
2004 | char *oname; | |
2005 | bfd *abfd; | |
2006 | ||
1579bae1 | 2007 | oname = xmalloc (20); |
b044cda1 CW |
2008 | sprintf (oname, "nmth%06d.o", tmp_seq); |
2009 | tmp_seq++; | |
2010 | ||
2011 | abfd = bfd_create (oname, parent); | |
2012 | bfd_find_target (pe_details->object_target, abfd); | |
2013 | bfd_make_writable (abfd); | |
2014 | ||
2015 | bfd_set_format (abfd, bfd_object); | |
2016 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2017 | ||
2018 | symptr = 0; | |
1579bae1 | 2019 | symtab = xmalloc (3 * sizeof (asymbol *)); |
b044cda1 CW |
2020 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
2021 | quick_symbol (abfd, U ("_nm_thnk_"), import, "", id4, BSF_GLOBAL, 0); | |
2022 | quick_symbol (abfd, U ("_nm_"), import, "", UNDSEC, BSF_GLOBAL, 0); | |
2023 | ||
2024 | bfd_set_section_size (abfd, id4, 8); | |
1579bae1 | 2025 | d4 = xmalloc (4); |
b044cda1 CW |
2026 | id4->contents = d4; |
2027 | memset (d4, 0, 8); | |
2028 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); | |
2029 | save_relocs (id4); | |
2030 | ||
2031 | bfd_set_symtab (abfd, symtab, symptr); | |
2032 | ||
2033 | bfd_set_section_contents (abfd, id4, d4, 0, 8); | |
2034 | ||
2035 | bfd_make_readable (abfd); | |
2036 | return abfd; | |
2037 | } | |
2038 | ||
2039 | static char * | |
1579bae1 | 2040 | make_import_fixup_mark (arelent *rel) |
b044cda1 | 2041 | { |
775cabad | 2042 | /* We convert reloc to symbol, for later reference. */ |
b044cda1 CW |
2043 | static int counter; |
2044 | static char *fixup_name = NULL; | |
db09f25b | 2045 | static size_t buffer_len = 0; |
b7a26f91 | 2046 | |
fc0a2244 | 2047 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b7a26f91 | 2048 | |
b044cda1 | 2049 | bfd *abfd = bfd_asymbol_bfd (sym); |
fe213ce2 | 2050 | struct bfd_link_hash_entry *bh; |
b044cda1 CW |
2051 | |
2052 | if (!fixup_name) | |
2053 | { | |
1579bae1 | 2054 | fixup_name = xmalloc (384); |
b044cda1 CW |
2055 | buffer_len = 384; |
2056 | } | |
2057 | ||
2058 | if (strlen (sym->name) + 25 > buffer_len) | |
b7a26f91 | 2059 | /* Assume 25 chars for "__fu" + counter + "_". If counter is |
b044cda1 | 2060 | bigger than 20 digits long, we've got worse problems than |
775cabad | 2061 | overflowing this buffer... */ |
b044cda1 CW |
2062 | { |
2063 | free (fixup_name); | |
a35bc64f NC |
2064 | /* New buffer size is length of symbol, plus 25, but |
2065 | then rounded up to the nearest multiple of 128. */ | |
b044cda1 | 2066 | buffer_len = ((strlen (sym->name) + 25) + 127) & ~127; |
1579bae1 | 2067 | fixup_name = xmalloc (buffer_len); |
b044cda1 | 2068 | } |
b7a26f91 | 2069 | |
b044cda1 CW |
2070 | sprintf (fixup_name, "__fu%d_%s", counter++, sym->name); |
2071 | ||
fe213ce2 | 2072 | bh = NULL; |
b7a26f91 | 2073 | bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL, |
b044cda1 | 2074 | current_sec, /* sym->section, */ |
b34976b6 | 2075 | rel->address, NULL, TRUE, FALSE, &bh); |
fe213ce2 AM |
2076 | |
2077 | if (0) | |
2078 | { | |
2079 | struct coff_link_hash_entry *myh; | |
2080 | ||
2081 | myh = (struct coff_link_hash_entry *) bh; | |
2082 | printf ("type:%d\n", myh->type); | |
2083 | printf ("%s\n", myh->root.u.def.section->name); | |
2084 | } | |
b044cda1 | 2085 | |
b044cda1 CW |
2086 | return fixup_name; |
2087 | } | |
2088 | ||
53baae48 | 2089 | /* .section .idata$2 |
775cabad NC |
2090 | .rva __nm_thnk_SYM (singleton thunk with name of func) |
2091 | .long 0 | |
2092 | .long 0 | |
2093 | .rva __my_dll_iname (name of dll) | |
2094 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
b044cda1 CW |
2095 | |
2096 | static bfd * | |
1579bae1 AM |
2097 | make_import_fixup_entry (const char *name, |
2098 | const char *fixup_name, | |
2099 | const char *dll_symname, | |
2100 | bfd *parent) | |
b044cda1 | 2101 | { |
53baae48 NC |
2102 | asection *id2; |
2103 | unsigned char *d2; | |
b044cda1 CW |
2104 | char *oname; |
2105 | bfd *abfd; | |
2106 | ||
1579bae1 | 2107 | oname = xmalloc (20); |
b044cda1 CW |
2108 | sprintf (oname, "fu%06d.o", tmp_seq); |
2109 | tmp_seq++; | |
2110 | ||
2111 | abfd = bfd_create (oname, parent); | |
2112 | bfd_find_target (pe_details->object_target, abfd); | |
2113 | bfd_make_writable (abfd); | |
2114 | ||
2115 | bfd_set_format (abfd, bfd_object); | |
2116 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2117 | ||
2118 | symptr = 0; | |
1579bae1 | 2119 | symtab = xmalloc (6 * sizeof (asymbol *)); |
53baae48 | 2120 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
775cabad | 2121 | |
b044cda1 CW |
2122 | quick_symbol (abfd, U ("_nm_thnk_"), name, "", UNDSEC, BSF_GLOBAL, 0); |
2123 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
2124 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2125 | ||
53baae48 NC |
2126 | bfd_set_section_size (abfd, id2, 20); |
2127 | d2 = xmalloc (20); | |
2128 | id2->contents = d2; | |
2129 | memset (d2, 0, 20); | |
b044cda1 CW |
2130 | |
2131 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2132 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 2); | |
2133 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 3); | |
53baae48 | 2134 | save_relocs (id2); |
b044cda1 CW |
2135 | |
2136 | bfd_set_symtab (abfd, symtab, symptr); | |
2137 | ||
53baae48 | 2138 | bfd_set_section_contents (abfd, id2, d2, 0, 20); |
b044cda1 CW |
2139 | |
2140 | bfd_make_readable (abfd); | |
2141 | return abfd; | |
2142 | } | |
2143 | ||
2fa9fc65 NC |
2144 | /* .section .rdata_runtime_pseudo_reloc |
2145 | .long addend | |
2146 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
2147 | ||
2148 | static bfd * | |
1579bae1 AM |
2149 | make_runtime_pseudo_reloc (const char *name ATTRIBUTE_UNUSED, |
2150 | const char *fixup_name, | |
2151 | int addend, | |
2152 | bfd *parent) | |
2fa9fc65 NC |
2153 | { |
2154 | asection *rt_rel; | |
2155 | unsigned char *rt_rel_d; | |
2156 | char *oname; | |
2157 | bfd *abfd; | |
2158 | ||
1579bae1 | 2159 | oname = xmalloc (20); |
2fa9fc65 NC |
2160 | sprintf (oname, "rtr%06d.o", tmp_seq); |
2161 | tmp_seq++; | |
2162 | ||
2163 | abfd = bfd_create (oname, parent); | |
2164 | bfd_find_target (pe_details->object_target, abfd); | |
2165 | bfd_make_writable (abfd); | |
2166 | ||
2167 | bfd_set_format (abfd, bfd_object); | |
2168 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2169 | ||
2170 | symptr = 0; | |
1579bae1 AM |
2171 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2172 | rt_rel = quick_section (abfd, ".rdata_runtime_pseudo_reloc", | |
2173 | SEC_HAS_CONTENTS, 2); | |
2fa9fc65 NC |
2174 | |
2175 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2176 | ||
2177 | bfd_set_section_size (abfd, rt_rel, 8); | |
1579bae1 | 2178 | rt_rel_d = xmalloc (8); |
2fa9fc65 NC |
2179 | rt_rel->contents = rt_rel_d; |
2180 | memset (rt_rel_d, 0, 8); | |
2181 | bfd_put_32 (abfd, addend, rt_rel_d); | |
2182 | ||
2183 | quick_reloc (abfd, 4, BFD_RELOC_RVA, 1); | |
2184 | save_relocs (rt_rel); | |
2185 | ||
2186 | bfd_set_symtab (abfd, symtab, symptr); | |
2187 | ||
2188 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, 8); | |
2189 | ||
2190 | bfd_make_readable (abfd); | |
2191 | return abfd; | |
2192 | } | |
2193 | ||
2194 | /* .section .rdata | |
a35bc64f | 2195 | .rva __pei386_runtime_relocator */ |
2fa9fc65 NC |
2196 | |
2197 | static bfd * | |
1579bae1 | 2198 | pe_create_runtime_relocator_reference (bfd *parent) |
2fa9fc65 NC |
2199 | { |
2200 | asection *extern_rt_rel; | |
2201 | unsigned char *extern_rt_rel_d; | |
2202 | char *oname; | |
2203 | bfd *abfd; | |
2204 | ||
1579bae1 | 2205 | oname = xmalloc (20); |
2fa9fc65 NC |
2206 | sprintf (oname, "ertr%06d.o", tmp_seq); |
2207 | tmp_seq++; | |
2208 | ||
2209 | abfd = bfd_create (oname, parent); | |
2210 | bfd_find_target (pe_details->object_target, abfd); | |
2211 | bfd_make_writable (abfd); | |
2212 | ||
2213 | bfd_set_format (abfd, bfd_object); | |
2214 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2215 | ||
2216 | symptr = 0; | |
1579bae1 | 2217 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2fa9fc65 NC |
2218 | extern_rt_rel = quick_section (abfd, ".rdata", SEC_HAS_CONTENTS, 2); |
2219 | ||
1579bae1 AM |
2220 | quick_symbol (abfd, "", "__pei386_runtime_relocator", "", UNDSEC, |
2221 | BSF_NO_FLAGS, 0); | |
2fa9fc65 NC |
2222 | |
2223 | bfd_set_section_size (abfd, extern_rt_rel, 4); | |
1579bae1 | 2224 | extern_rt_rel_d = xmalloc (4); |
2fa9fc65 NC |
2225 | extern_rt_rel->contents = extern_rt_rel_d; |
2226 | ||
2227 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2228 | save_relocs (extern_rt_rel); | |
2229 | ||
2230 | bfd_set_symtab (abfd, symtab, symptr); | |
2231 | ||
2232 | bfd_set_section_contents (abfd, extern_rt_rel, extern_rt_rel_d, 0, 4); | |
2233 | ||
2234 | bfd_make_readable (abfd); | |
2235 | return abfd; | |
2236 | } | |
2237 | ||
b044cda1 | 2238 | void |
1579bae1 | 2239 | pe_create_import_fixup (arelent *rel, asection *s, int addend) |
b044cda1 CW |
2240 | { |
2241 | char buf[300]; | |
fc0a2244 | 2242 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b044cda1 | 2243 | struct bfd_link_hash_entry *name_thunk_sym; |
db09f25b | 2244 | const char *name = sym->name; |
b044cda1 | 2245 | char *fixup_name = make_import_fixup_mark (rel); |
2fa9fc65 | 2246 | bfd *b; |
b044cda1 CW |
2247 | |
2248 | sprintf (buf, U ("_nm_thnk_%s"), name); | |
2249 | ||
2250 | name_thunk_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); | |
2251 | ||
2252 | if (!name_thunk_sym || name_thunk_sym->type != bfd_link_hash_defined) | |
2253 | { | |
2254 | bfd *b = make_singleton_name_thunk (name, output_bfd); | |
2255 | add_bfd_to_link (b, b->filename, &link_info); | |
2256 | ||
775cabad | 2257 | /* If we ever use autoimport, we have to cast text section writable. */ |
b34976b6 | 2258 | config.text_read_only = FALSE; |
4d8907ac | 2259 | output_bfd->flags &= ~WP_TEXT; |
b044cda1 CW |
2260 | } |
2261 | ||
2fa9fc65 NC |
2262 | if (addend == 0 || link_info.pei386_runtime_pseudo_reloc) |
2263 | { | |
2264 | extern char * pe_data_import_dll; | |
2265 | char * dll_symname = pe_data_import_dll ? pe_data_import_dll : "unknown"; | |
aa3d9aba | 2266 | |
2fa9fc65 NC |
2267 | b = make_import_fixup_entry (name, fixup_name, dll_symname, output_bfd); |
2268 | add_bfd_to_link (b, b->filename, &link_info); | |
2269 | } | |
2270 | ||
2271 | if (addend != 0) | |
2272 | { | |
2273 | if (link_info.pei386_runtime_pseudo_reloc) | |
2274 | { | |
2275 | if (pe_dll_extra_pe_debug) | |
2276 | printf ("creating runtime pseudo-reloc entry for %s (addend=%d)\n", | |
2277 | fixup_name, addend); | |
2278 | b = make_runtime_pseudo_reloc (name, fixup_name, addend, output_bfd); | |
2279 | add_bfd_to_link (b, b->filename, &link_info); | |
2280 | ||
2281 | if (runtime_pseudo_relocs_created == 0) | |
2282 | { | |
2283 | b = pe_create_runtime_relocator_reference (output_bfd); | |
2284 | add_bfd_to_link (b, b->filename, &link_info); | |
2285 | } | |
2286 | runtime_pseudo_relocs_created++; | |
b34976b6 | 2287 | } |
2fa9fc65 NC |
2288 | else |
2289 | { | |
2290 | einfo (_("%C: variable '%T' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.\n"), | |
2291 | s->owner, s, rel->address, sym->name); | |
2292 | einfo ("%X"); | |
2293 | } | |
2294 | } | |
b044cda1 CW |
2295 | } |
2296 | ||
2297 | ||
252b5132 | 2298 | void |
1579bae1 | 2299 | pe_dll_generate_implib (def_file *def, const char *impfilename) |
252b5132 RH |
2300 | { |
2301 | int i; | |
2302 | bfd *ar_head; | |
2303 | bfd *ar_tail; | |
2304 | bfd *outarch; | |
2305 | bfd *head = 0; | |
2306 | ||
5aaace27 | 2307 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 | 2308 | dll_symname = xstrdup (dll_filename); |
d643799d | 2309 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2310 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2311 | dll_symname[i] = '_'; |
2312 | ||
bb14f524 | 2313 | unlink_if_ordinary (impfilename); |
252b5132 RH |
2314 | |
2315 | outarch = bfd_openw (impfilename, 0); | |
2316 | ||
2317 | if (!outarch) | |
2318 | { | |
2319 | /* xgettext:c-format */ | |
2320 | einfo (_("%XCan't open .lib file: %s\n"), impfilename); | |
2321 | return; | |
2322 | } | |
2323 | ||
2324 | /* xgettext:c-format */ | |
63d85248 NC |
2325 | info_msg (_("Creating library file: %s\n"), impfilename); |
2326 | ||
252b5132 RH |
2327 | bfd_set_format (outarch, bfd_archive); |
2328 | outarch->has_armap = 1; | |
2329 | ||
5cc18311 | 2330 | /* Work out a reasonable size of things to put onto one line. */ |
252b5132 | 2331 | ar_head = make_head (outarch); |
252b5132 | 2332 | |
d643799d | 2333 | for (i = 0; i < def->num_exports; i++) |
252b5132 | 2334 | { |
86b1cc60 | 2335 | /* The import library doesn't know about the internal name. */ |
252b5132 RH |
2336 | char *internal = def->exports[i].internal_name; |
2337 | bfd *n; | |
775cabad | 2338 | |
ee31fbd0 NC |
2339 | /* Don't add PRIVATE entries to import lib. */ |
2340 | if (pe_def_file->exports[i].flag_private) | |
2341 | continue; | |
252b5132 | 2342 | def->exports[i].internal_name = def->exports[i].name; |
d643799d | 2343 | n = make_one (def->exports + i, outarch); |
252b5132 RH |
2344 | n->next = head; |
2345 | head = n; | |
2346 | def->exports[i].internal_name = internal; | |
2347 | } | |
2348 | ||
c6c37250 DD |
2349 | ar_tail = make_tail (outarch); |
2350 | ||
2351 | if (ar_head == NULL || ar_tail == NULL) | |
2352 | return; | |
2353 | ||
86b1cc60 | 2354 | /* Now stick them all into the archive. */ |
252b5132 RH |
2355 | ar_head->next = head; |
2356 | ar_tail->next = ar_head; | |
2357 | head = ar_tail; | |
2358 | ||
2359 | if (! bfd_set_archive_head (outarch, head)) | |
36230712 | 2360 | einfo ("%Xbfd_set_archive_head: %E\n"); |
5cc18311 | 2361 | |
252b5132 | 2362 | if (! bfd_close (outarch)) |
36230712 | 2363 | einfo ("%Xbfd_close %s: %E\n", impfilename); |
252b5132 RH |
2364 | |
2365 | while (head != NULL) | |
2366 | { | |
2367 | bfd *n = head->next; | |
2368 | bfd_close (head); | |
2369 | head = n; | |
2370 | } | |
2371 | } | |
2372 | ||
2373 | static void | |
1579bae1 | 2374 | add_bfd_to_link (bfd *abfd, const char *name, struct bfd_link_info *link_info) |
252b5132 RH |
2375 | { |
2376 | lang_input_statement_type *fake_file; | |
775cabad | 2377 | |
252b5132 RH |
2378 | fake_file = lang_add_input_file (name, |
2379 | lang_input_file_is_fake_enum, | |
2380 | NULL); | |
2381 | fake_file->the_bfd = abfd; | |
2382 | ldlang_add_file (fake_file); | |
775cabad | 2383 | |
252b5132 | 2384 | if (!bfd_link_add_symbols (abfd, link_info)) |
36230712 | 2385 | einfo ("%Xaddsym %s: %E\n", name); |
252b5132 RH |
2386 | } |
2387 | ||
2388 | void | |
1579bae1 | 2389 | pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *link_info) |
252b5132 RH |
2390 | { |
2391 | def_file_module *module; | |
775cabad | 2392 | |
d643799d | 2393 | pe_dll_id_target (bfd_get_target (output_bfd)); |
252b5132 RH |
2394 | |
2395 | if (!pe_def_file) | |
2396 | return; | |
2397 | ||
2398 | for (module = pe_def_file->modules; module; module = module->next) | |
2399 | { | |
2400 | int i, do_this_dll; | |
2401 | ||
2402 | dll_filename = module->name; | |
2403 | dll_symname = xstrdup (module->name); | |
d643799d | 2404 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2405 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2406 | dll_symname[i] = '_'; |
2407 | ||
2408 | do_this_dll = 0; | |
2409 | ||
d643799d | 2410 | for (i = 0; i < pe_def_file->num_imports; i++) |
252b5132 RH |
2411 | if (pe_def_file->imports[i].module == module) |
2412 | { | |
2413 | def_file_export exp; | |
2414 | struct bfd_link_hash_entry *blhe; | |
b34976b6 | 2415 | int lead_at = (*pe_def_file->imports[i].internal_name == '@'); |
86b1cc60 | 2416 | /* See if we need this import. */ |
1579bae1 AM |
2417 | size_t len = strlen (pe_def_file->imports[i].internal_name); |
2418 | char *name = xmalloc (len + 2 + 6); | |
c9e38879 NC |
2419 | |
2420 | if (lead_at) | |
1579bae1 AM |
2421 | sprintf (name, "%s%s", "", |
2422 | pe_def_file->imports[i].internal_name); | |
c9e38879 | 2423 | else |
1579bae1 AM |
2424 | sprintf (name, "%s%s",U (""), |
2425 | pe_def_file->imports[i].internal_name); | |
c9e38879 | 2426 | |
252b5132 | 2427 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
b34976b6 | 2428 | FALSE, FALSE, FALSE); |
c9e38879 | 2429 | |
874c8c99 DD |
2430 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) |
2431 | { | |
c9e38879 NC |
2432 | if (lead_at) |
2433 | sprintf (name, "%s%s", U ("_imp_"), | |
2434 | pe_def_file->imports[i].internal_name); | |
2435 | else | |
2436 | sprintf (name, "%s%s", U ("_imp__"), | |
2437 | pe_def_file->imports[i].internal_name); | |
2438 | ||
874c8c99 | 2439 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
b34976b6 | 2440 | FALSE, FALSE, FALSE); |
874c8c99 | 2441 | } |
252b5132 | 2442 | free (name); |
c9e38879 | 2443 | |
252b5132 RH |
2444 | if (blhe && blhe->type == bfd_link_hash_undefined) |
2445 | { | |
2446 | bfd *one; | |
86b1cc60 | 2447 | /* We do. */ |
252b5132 RH |
2448 | if (!do_this_dll) |
2449 | { | |
2450 | bfd *ar_head = make_head (output_bfd); | |
2451 | add_bfd_to_link (ar_head, ar_head->filename, link_info); | |
2452 | do_this_dll = 1; | |
2453 | } | |
2454 | exp.internal_name = pe_def_file->imports[i].internal_name; | |
2455 | exp.name = pe_def_file->imports[i].name; | |
2456 | exp.ordinal = pe_def_file->imports[i].ordinal; | |
2457 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
2458 | exp.flag_private = 0; | |
2459 | exp.flag_constant = 0; | |
939ba9d0 | 2460 | exp.flag_data = pe_def_file->imports[i].data; |
252b5132 RH |
2461 | exp.flag_noname = exp.name ? 0 : 1; |
2462 | one = make_one (&exp, output_bfd); | |
2463 | add_bfd_to_link (one, one->filename, link_info); | |
2464 | } | |
2465 | } | |
2466 | if (do_this_dll) | |
2467 | { | |
2468 | bfd *ar_tail = make_tail (output_bfd); | |
2469 | add_bfd_to_link (ar_tail, ar_tail->filename, link_info); | |
2470 | } | |
2471 | ||
2472 | free (dll_symname); | |
2473 | } | |
2474 | } | |
2475 | ||
775cabad | 2476 | /* We were handed a *.DLL file. Parse it and turn it into a set of |
b34976b6 AM |
2477 | IMPORTS directives in the def file. Return TRUE if the file was |
2478 | handled, FALSE if not. */ | |
252b5132 RH |
2479 | |
2480 | static unsigned int | |
1579bae1 | 2481 | pe_get16 (bfd *abfd, int where) |
252b5132 RH |
2482 | { |
2483 | unsigned char b[2]; | |
775cabad | 2484 | |
db09f25b AM |
2485 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2486 | bfd_bread (b, (bfd_size_type) 2, abfd); | |
d643799d | 2487 | return b[0] + (b[1] << 8); |
252b5132 RH |
2488 | } |
2489 | ||
2490 | static unsigned int | |
1579bae1 | 2491 | pe_get32 (bfd *abfd, int where) |
252b5132 RH |
2492 | { |
2493 | unsigned char b[4]; | |
775cabad | 2494 | |
db09f25b AM |
2495 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2496 | bfd_bread (b, (bfd_size_type) 4, abfd); | |
d643799d | 2497 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2498 | } |
2499 | ||
252b5132 | 2500 | static unsigned int |
1579bae1 | 2501 | pe_as32 (void *ptr) |
252b5132 RH |
2502 | { |
2503 | unsigned char *b = ptr; | |
775cabad | 2504 | |
d643799d | 2505 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2506 | } |
2507 | ||
b34976b6 | 2508 | bfd_boolean |
1579bae1 | 2509 | pe_implied_import_dll (const char *filename) |
252b5132 RH |
2510 | { |
2511 | bfd *dll; | |
2512 | unsigned long pe_header_offset, opthdr_ofs, num_entries, i; | |
2513 | unsigned long export_rva, export_size, nsections, secptr, expptr; | |
939ba9d0 | 2514 | unsigned long exp_funcbase; |
47639182 AM |
2515 | unsigned char *expdata; |
2516 | char *erva; | |
252b5132 | 2517 | unsigned long name_rvas, ordinals, nexp, ordbase; |
1069dd8d | 2518 | const char *dll_name; |
939ba9d0 NC |
2519 | /* Initialization with start > end guarantees that is_data |
2520 | will not be set by mistake, and avoids compiler warning. */ | |
2521 | unsigned long data_start = 1; | |
661a32f7 DS |
2522 | unsigned long data_end = 0; |
2523 | unsigned long rdata_start = 1; | |
2524 | unsigned long rdata_end = 0; | |
2525 | unsigned long bss_start = 1; | |
2526 | unsigned long bss_end = 0; | |
252b5132 RH |
2527 | |
2528 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
5cc18311 | 2529 | the middle of the .rdata section. */ |
c6c37250 | 2530 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
2531 | if (!dll) |
2532 | { | |
36230712 | 2533 | einfo ("%Xopen %s: %E\n", filename); |
b34976b6 | 2534 | return FALSE; |
252b5132 | 2535 | } |
775cabad | 2536 | |
86b1cc60 | 2537 | /* PEI dlls seem to be bfd_objects. */ |
252b5132 RH |
2538 | if (!bfd_check_format (dll, bfd_object)) |
2539 | { | |
2540 | einfo ("%X%s: this doesn't appear to be a DLL\n", filename); | |
b34976b6 | 2541 | return FALSE; |
252b5132 RH |
2542 | } |
2543 | ||
939ba9d0 | 2544 | /* Get pe_header, optional header and numbers of export entries. */ |
252b5132 RH |
2545 | pe_header_offset = pe_get32 (dll, 0x3c); |
2546 | opthdr_ofs = pe_header_offset + 4 + 20; | |
2547 | num_entries = pe_get32 (dll, opthdr_ofs + 92); | |
775cabad NC |
2548 | |
2549 | if (num_entries < 1) /* No exports. */ | |
b34976b6 | 2550 | return FALSE; |
775cabad | 2551 | |
252b5132 RH |
2552 | export_rva = pe_get32 (dll, opthdr_ofs + 96); |
2553 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
2554 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); | |
2555 | secptr = (pe_header_offset + 4 + 20 + | |
2556 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
2557 | expptr = 0; | |
775cabad | 2558 | |
1579bae1 | 2559 | /* Get the rva and size of the export section. */ |
d643799d | 2560 | for (i = 0; i < nsections; i++) |
252b5132 RH |
2561 | { |
2562 | char sname[8]; | |
2563 | unsigned long secptr1 = secptr + 40 * i; | |
2564 | unsigned long vaddr = pe_get32 (dll, secptr1 + 12); | |
2565 | unsigned long vsize = pe_get32 (dll, secptr1 + 16); | |
2566 | unsigned long fptr = pe_get32 (dll, secptr1 + 20); | |
775cabad | 2567 | |
db09f25b AM |
2568 | bfd_seek (dll, (file_ptr) secptr1, SEEK_SET); |
2569 | bfd_bread (sname, (bfd_size_type) 8, dll); | |
775cabad | 2570 | |
d643799d | 2571 | if (vaddr <= export_rva && vaddr + vsize > export_rva) |
252b5132 RH |
2572 | { |
2573 | expptr = fptr + (export_rva - vaddr); | |
2574 | if (export_rva + export_size > vaddr + vsize) | |
2575 | export_size = vsize - (export_rva - vaddr); | |
2576 | break; | |
2577 | } | |
2578 | } | |
2579 | ||
939ba9d0 | 2580 | /* Scan sections and store the base and size of the |
1579bae1 | 2581 | data and bss segments in data/base_start/end. */ |
939ba9d0 NC |
2582 | for (i = 0; i < nsections; i++) |
2583 | { | |
2584 | unsigned long secptr1 = secptr + 40 * i; | |
2585 | unsigned long vsize = pe_get32 (dll, secptr1 + 8); | |
2586 | unsigned long vaddr = pe_get32 (dll, secptr1 + 12); | |
2587 | unsigned long flags = pe_get32 (dll, secptr1 + 36); | |
2588 | char sec_name[9]; | |
2589 | ||
2590 | sec_name[8] = '\0'; | |
2591 | bfd_seek (dll, (file_ptr) secptr1 + 0, SEEK_SET); | |
2592 | bfd_bread (sec_name, (bfd_size_type) 8, dll); | |
2593 | ||
2594 | if (strcmp(sec_name,".data") == 0) | |
2595 | { | |
2596 | data_start = vaddr; | |
2597 | data_end = vaddr + vsize; | |
2598 | ||
661a32f7 DS |
2599 | if (pe_dll_extra_pe_debug) |
2600 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
2601 | __FUNCTION__, sec_name, vaddr, vaddr + vsize, flags); | |
2602 | } | |
2603 | else if (strcmp(sec_name,".rdata") == 0) | |
2604 | { | |
2605 | rdata_start = vaddr; | |
2606 | rdata_end = vaddr + vsize; | |
2607 | ||
939ba9d0 NC |
2608 | if (pe_dll_extra_pe_debug) |
2609 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
2610 | __FUNCTION__, sec_name, vaddr, vaddr + vsize, flags); | |
1579bae1 | 2611 | } |
939ba9d0 NC |
2612 | else if (strcmp (sec_name,".bss") == 0) |
2613 | { | |
2614 | bss_start = vaddr; | |
2615 | bss_end = vaddr + vsize; | |
2616 | ||
2617 | if (pe_dll_extra_pe_debug) | |
2618 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
2619 | __FUNCTION__, sec_name, vaddr, vaddr + vsize, flags); | |
2620 | } | |
2621 | } | |
2622 | ||
1579bae1 | 2623 | expdata = xmalloc (export_size); |
db09f25b AM |
2624 | bfd_seek (dll, (file_ptr) expptr, SEEK_SET); |
2625 | bfd_bread (expdata, (bfd_size_type) export_size, dll); | |
47639182 | 2626 | erva = (char *) expdata - export_rva; |
252b5132 RH |
2627 | |
2628 | if (pe_def_file == 0) | |
d643799d | 2629 | pe_def_file = def_file_empty (); |
252b5132 | 2630 | |
d643799d KH |
2631 | nexp = pe_as32 (expdata + 24); |
2632 | name_rvas = pe_as32 (expdata + 32); | |
2633 | ordinals = pe_as32 (expdata + 36); | |
2634 | ordbase = pe_as32 (expdata + 16); | |
939ba9d0 | 2635 | exp_funcbase = pe_as32 (expdata + 28); |
775cabad | 2636 | |
939ba9d0 NC |
2637 | /* Use internal dll name instead of filename |
2638 | to enable symbolic dll linking. */ | |
47639182 | 2639 | dll_name = erva + pe_as32 (expdata + 12); |
939ba9d0 | 2640 | |
a35bc64f NC |
2641 | /* Check to see if the dll has already been added to |
2642 | the definition list and if so return without error. | |
2643 | This avoids multiple symbol definitions. */ | |
2644 | if (def_get_module (pe_def_file, dll_name)) | |
2645 | { | |
2646 | if (pe_dll_extra_pe_debug) | |
2647 | printf ("%s is already loaded\n", dll_name); | |
2648 | return TRUE; | |
2649 | } | |
2650 | ||
939ba9d0 | 2651 | /* Iterate through the list of symbols. */ |
d643799d | 2652 | for (i = 0; i < nexp; i++) |
252b5132 | 2653 | { |
939ba9d0 | 2654 | /* Pointer to the names vector. */ |
d643799d | 2655 | unsigned long name_rva = pe_as32 (erva + name_rvas + i * 4); |
252b5132 | 2656 | def_file_import *imp; |
1579bae1 | 2657 | /* Pointer to the function address vector. */ |
939ba9d0 NC |
2658 | unsigned long func_rva = pe_as32 (erva + exp_funcbase + i * 4); |
2659 | int is_data = 0; | |
2660 | ||
2661 | /* Skip unwanted symbols, which are | |
2662 | exported in buggy auto-import releases. */ | |
2663 | if (strncmp (erva + name_rva, "_nm_", 4) != 0) | |
2664 | { | |
661a32f7 DS |
2665 | /* is_data is true if the address is in the data, rdata or bss |
2666 | segment. */ | |
939ba9d0 NC |
2667 | is_data = |
2668 | (func_rva >= data_start && func_rva < data_end) | |
661a32f7 | 2669 | || (func_rva >= rdata_start && func_rva < rdata_end) |
939ba9d0 NC |
2670 | || (func_rva >= bss_start && func_rva < bss_end); |
2671 | ||
2672 | imp = def_file_add_import (pe_def_file, erva + name_rva, | |
2673 | dll_name, i, 0); | |
396a2467 | 2674 | /* Mark symbol type. */ |
939ba9d0 | 2675 | imp->data = is_data; |
1579bae1 | 2676 | |
939ba9d0 NC |
2677 | if (pe_dll_extra_pe_debug) |
2678 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", | |
2679 | __FUNCTION__, dll_name, erva + name_rva, | |
2680 | func_rva, is_data ? "(data)" : ""); | |
2681 | } | |
252b5132 RH |
2682 | } |
2683 | ||
b34976b6 | 2684 | return TRUE; |
252b5132 RH |
2685 | } |
2686 | ||
775cabad NC |
2687 | /* These are the main functions, called from the emulation. The first |
2688 | is called after the bfds are read, so we can guess at how much space | |
2689 | we need. The second is called after everything is placed, so we | |
2690 | can put the right values in place. */ | |
252b5132 RH |
2691 | |
2692 | void | |
1579bae1 | 2693 | pe_dll_build_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 2694 | { |
c6c37250 | 2695 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
2696 | process_def_file (abfd, info); |
2697 | ||
1579bae1 | 2698 | if (pe_def_file->num_exports == 0 && !info->shared) |
2b817be1 NC |
2699 | return; |
2700 | ||
252b5132 | 2701 | generate_edata (abfd, info); |
c6c37250 DD |
2702 | build_filler_bfd (1); |
2703 | } | |
2704 | ||
2705 | void | |
1579bae1 | 2706 | pe_exe_build_sections (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
c6c37250 DD |
2707 | { |
2708 | pe_dll_id_target (bfd_get_target (abfd)); | |
2709 | build_filler_bfd (0); | |
252b5132 RH |
2710 | } |
2711 | ||
2712 | void | |
1579bae1 | 2713 | pe_dll_fill_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 2714 | { |
c6c37250 | 2715 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
2716 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
2717 | ||
2718 | generate_reloc (abfd, info); | |
2719 | if (reloc_sz > 0) | |
2720 | { | |
2721 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
2722 | ||
2723 | /* Resize the sections. */ | |
38975f9e | 2724 | lang_reset_memory_regions (); |
e9ee469a | 2725 | lang_size_sections (NULL, TRUE); |
252b5132 RH |
2726 | |
2727 | /* Redo special stuff. */ | |
2728 | ldemul_after_allocation (); | |
2729 | ||
2730 | /* Do the assignments again. */ | |
e9ee469a | 2731 | lang_do_assignments (); |
252b5132 RH |
2732 | } |
2733 | ||
2734 | fill_edata (abfd, info); | |
2735 | ||
db8acf26 | 2736 | if (info->shared && !info->pie) |
2b817be1 | 2737 | pe_data (abfd)->dll = 1; |
252b5132 RH |
2738 | |
2739 | edata_s->contents = edata_d; | |
2740 | reloc_s->contents = reloc_d; | |
2741 | } | |
c6c37250 DD |
2742 | |
2743 | void | |
1579bae1 | 2744 | pe_exe_fill_sections (bfd *abfd, struct bfd_link_info *info) |
c6c37250 DD |
2745 | { |
2746 | pe_dll_id_target (bfd_get_target (abfd)); | |
2747 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; | |
2748 | ||
2749 | generate_reloc (abfd, info); | |
2750 | if (reloc_sz > 0) | |
2751 | { | |
2752 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
2753 | ||
2754 | /* Resize the sections. */ | |
38975f9e | 2755 | lang_reset_memory_regions (); |
e9ee469a | 2756 | lang_size_sections (NULL, TRUE); |
c6c37250 DD |
2757 | |
2758 | /* Redo special stuff. */ | |
2759 | ldemul_after_allocation (); | |
2760 | ||
2761 | /* Do the assignments again. */ | |
e9ee469a | 2762 | lang_do_assignments (); |
c6c37250 DD |
2763 | } |
2764 | reloc_s->contents = reloc_d; | |
2765 | } |