Commit | Line | Data |
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252b5132 | 1 | /* Routines to help build PEI-format DLLs (Win32 etc) |
4d8907ac DS |
2 | Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 |
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 | |
20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
21 | 02111-1307, USA. */ | |
22 | ||
23 | #include "bfd.h" | |
24 | #include "sysdep.h" | |
25 | #include "bfdlink.h" | |
26 | #include "libiberty.h" | |
3882b010 | 27 | #include "safe-ctype.h" |
252b5132 | 28 | |
ee31fbd0 | 29 | #include <stdint.h> |
252b5132 | 30 | #include <time.h> |
252b5132 RH |
31 | |
32 | #include "ld.h" | |
33 | #include "ldexp.h" | |
34 | #include "ldlang.h" | |
35 | #include "ldwrite.h" | |
36 | #include "ldmisc.h" | |
df2a7313 | 37 | #include <ldgram.h> |
252b5132 | 38 | #include "ldmain.h" |
b71e2778 | 39 | #include "ldfile.h" |
252b5132 RH |
40 | #include "ldemul.h" |
41 | #include "coff/internal.h" | |
42 | #include "../bfd/libcoff.h" | |
43 | #include "deffile.h" | |
1069dd8d | 44 | #include "pe-dll.h" |
252b5132 | 45 | |
775cabad NC |
46 | /* This file turns a regular Windows PE image into a DLL. Because of |
47 | the complexity of this operation, it has been broken down into a | |
48 | number of separate modules which are all called by the main function | |
49 | at the end of this file. This function is not re-entrant and is | |
50 | normally only called once, so static variables are used to reduce | |
51 | the number of parameters and return values required. | |
b7a26f91 | 52 | |
775cabad NC |
53 | See also: ld/emultempl/pe.em. */ |
54 | ||
55 | /* Auto-import feature by Paul Sokolovsky | |
56 | ||
57 | Quick facts: | |
58 | ||
59 | 1. With this feature on, DLL clients can import variables from DLL | |
60 | without any concern from their side (for example, without any source | |
61 | code modifications). | |
62 | ||
63 | 2. This is done completely in bounds of the PE specification (to be fair, | |
396a2467 | 64 | there's a place where it pokes nose out of, but in practice it works). |
775cabad NC |
65 | So, resulting module can be used with any other PE compiler/linker. |
66 | ||
67 | 3. Auto-import is fully compatible with standard import method and they | |
68 | can be mixed together. | |
69 | ||
70 | 4. Overheads: space: 8 bytes per imported symbol, plus 20 for each | |
71 | reference to it; load time: negligible; virtual/physical memory: should be | |
72 | less than effect of DLL relocation, and I sincerely hope it doesn't affect | |
73 | DLL sharability (too much). | |
74 | ||
75 | Idea | |
76 | ||
77 | The obvious and only way to get rid of dllimport insanity is to make client | |
78 | access variable directly in the DLL, bypassing extra dereference. I.e., | |
396a2467 | 79 | whenever client contains something like |
775cabad NC |
80 | |
81 | mov dll_var,%eax, | |
82 | ||
83 | address of dll_var in the command should be relocated to point into loaded | |
84 | DLL. The aim is to make OS loader do so, and than make ld help with that. | |
85 | Import section of PE made following way: there's a vector of structures | |
86 | each describing imports from particular DLL. Each such structure points | |
396a2467 | 87 | to two other parallel vectors: one holding imported names, and one which |
775cabad NC |
88 | will hold address of corresponding imported name. So, the solution is |
89 | de-vectorize these structures, making import locations be sparse and | |
90 | pointing directly into code. Before continuing, it is worth a note that, | |
91 | while authors strives to make PE act ELF-like, there're some other people | |
92 | make ELF act PE-like: elfvector, ;-) . | |
93 | ||
94 | Implementation | |
95 | ||
96 | For each reference of data symbol to be imported from DLL (to set of which | |
97 | belong symbols with name <sym>, if __imp_<sym> is found in implib), the | |
98 | import fixup entry is generated. That entry is of type | |
99 | IMAGE_IMPORT_DESCRIPTOR and stored in .idata$3 subsection. Each | |
100 | fixup entry contains pointer to symbol's address within .text section | |
101 | (marked with __fuN_<sym> symbol, where N is integer), pointer to DLL name | |
102 | (so, DLL name is referenced by multiple entries), and pointer to symbol | |
103 | name thunk. Symbol name thunk is singleton vector (__nm_th_<symbol>) | |
104 | pointing to IMAGE_IMPORT_BY_NAME structure (__nm_<symbol>) directly | |
105 | containing imported name. Here comes that "om the edge" problem mentioned | |
106 | above: PE specification rambles that name vector (OriginalFirstThunk) | |
107 | should run in parallel with addresses vector (FirstThunk), i.e. that they | |
108 | should have same number of elements and terminated with zero. We violate | |
396a2467 | 109 | this, since FirstThunk points directly into machine code. But in practice, |
775cabad NC |
110 | OS loader implemented the sane way: it goes thru OriginalFirstThunk and |
111 | puts addresses to FirstThunk, not something else. It once again should be | |
112 | noted that dll and symbol name structures are reused across fixup entries | |
113 | and should be there anyway to support standard import stuff, so sustained | |
114 | overhead is 20 bytes per reference. Other question is whether having several | |
115 | IMAGE_IMPORT_DESCRIPTORS for the same DLL is possible. Answer is yes, it is | |
116 | done even by native compiler/linker (libth32's functions are in fact reside | |
117 | in windows9x kernel32.dll, so if you use it, you have two | |
118 | IMAGE_IMPORT_DESCRIPTORS for kernel32.dll). Yet other question is whether | |
119 | referencing the same PE structures several times is valid. The answer is why | |
396a2467 | 120 | not, prohibiting that (detecting violation) would require more work on |
775cabad NC |
121 | behalf of loader than not doing it. |
122 | ||
123 | See also: ld/emultempl/pe.em. */ | |
b044cda1 | 124 | |
1579bae1 | 125 | static void add_bfd_to_link (bfd *, const char *, struct bfd_link_info *); |
b044cda1 | 126 | |
775cabad | 127 | /* For emultempl/pe.em. */ |
252b5132 | 128 | |
775cabad | 129 | def_file * pe_def_file = 0; |
252b5132 RH |
130 | int pe_dll_export_everything = 0; |
131 | int pe_dll_do_default_excludes = 1; | |
132 | int pe_dll_kill_ats = 0; | |
133 | int pe_dll_stdcall_aliases = 0; | |
870df5dc NC |
134 | int pe_dll_warn_dup_exports = 0; |
135 | int pe_dll_compat_implib = 0; | |
b044cda1 | 136 | int pe_dll_extra_pe_debug = 0; |
252b5132 | 137 | |
775cabad | 138 | /* Static variables and types. */ |
252b5132 RH |
139 | |
140 | static bfd_vma image_base; | |
252b5132 | 141 | static bfd *filler_bfd; |
198beae2 | 142 | static struct bfd_section *edata_s, *reloc_s; |
252b5132 | 143 | static unsigned char *edata_d, *reloc_d; |
1069dd8d | 144 | static size_t edata_sz, reloc_sz; |
2fa9fc65 | 145 | static int runtime_pseudo_relocs_created = 0; |
252b5132 | 146 | |
775cabad NC |
147 | typedef struct |
148 | { | |
149 | char *target_name; | |
150 | char *object_target; | |
151 | unsigned int imagebase_reloc; | |
152 | int pe_arch; | |
153 | int bfd_arch; | |
154 | int underscored; | |
155 | } | |
156 | pe_details_type; | |
157 | ||
158 | typedef struct | |
159 | { | |
160 | char *name; | |
161 | int len; | |
162 | } | |
163 | autofilter_entry_type; | |
b044cda1 | 164 | |
c6c37250 | 165 | #define PE_ARCH_i386 1 |
344a211f NC |
166 | #define PE_ARCH_sh 2 |
167 | #define PE_ARCH_mips 3 | |
168 | #define PE_ARCH_arm 4 | |
775cabad | 169 | #define PE_ARCH_arm_epoc 5 |
c6c37250 | 170 | |
775cabad NC |
171 | static pe_details_type pe_detail_list[] = |
172 | { | |
c6c37250 DD |
173 | { |
174 | "pei-i386", | |
175 | "pe-i386", | |
176 | 7 /* R_IMAGEBASE */, | |
177 | PE_ARCH_i386, | |
178 | bfd_arch_i386, | |
179 | 1 | |
180 | }, | |
344a211f NC |
181 | { |
182 | "pei-shl", | |
183 | "pe-shl", | |
184 | 16 /* R_SH_IMAGEBASE */, | |
185 | PE_ARCH_sh, | |
186 | bfd_arch_sh, | |
187 | 1 | |
188 | }, | |
189 | { | |
190 | "pei-mips", | |
191 | "pe-mips", | |
192 | 34 /* MIPS_R_RVA */, | |
193 | PE_ARCH_mips, | |
194 | bfd_arch_mips, | |
195 | 0 | |
196 | }, | |
197 | { | |
198 | "pei-arm-little", | |
199 | "pe-arm-little", | |
200 | 11 /* ARM_RVA32 */, | |
201 | PE_ARCH_arm, | |
202 | bfd_arch_arm, | |
2b817be1 | 203 | 1 |
344a211f | 204 | }, |
775cabad NC |
205 | { |
206 | "epoc-pei-arm-little", | |
207 | "epoc-pe-arm-little", | |
208 | 11 /* ARM_RVA32 */, | |
209 | PE_ARCH_arm_epoc, | |
210 | bfd_arch_arm, | |
211 | 0 | |
212 | }, | |
1069dd8d | 213 | { NULL, NULL, 0, 0, 0, 0 } |
c6c37250 DD |
214 | }; |
215 | ||
216 | static pe_details_type *pe_details; | |
217 | ||
775cabad NC |
218 | static autofilter_entry_type autofilter_symbollist[] = |
219 | { | |
b044cda1 CW |
220 | { "DllMain@12", 10 }, |
221 | { "DllEntryPoint@0", 15 }, | |
222 | { "DllMainCRTStartup@12", 20 }, | |
223 | { "_cygwin_dll_entry@12", 20 }, | |
224 | { "_cygwin_crt0_common@8", 21 }, | |
225 | { "_cygwin_noncygwin_dll_entry@12", 30 }, | |
226 | { "impure_ptr", 10 }, | |
1c43e6e5 NC |
227 | { "_pei386_runtime_relocator", 25 }, |
228 | { "do_pseudo_reloc", 15 }, | |
54d4efe3 | 229 | { "cygwin_crt0", 11 }, |
b044cda1 CW |
230 | { NULL, 0 } |
231 | }; | |
775cabad NC |
232 | |
233 | /* Do not specify library suffix explicitly, to allow for dllized versions. */ | |
234 | static autofilter_entry_type autofilter_liblist[] = | |
235 | { | |
602d6c6f | 236 | { "libcygwin", 9 }, |
75c2ea5b CF |
237 | { "libgcc", 6 }, |
238 | { "libstdc++", 9 }, | |
239 | { "libmingw32", 10 }, | |
9e8d33e7 | 240 | { "libmingwex", 10 }, |
75c2ea5b CF |
241 | { "libg2c", 6 }, |
242 | { "libsupc++", 9 }, | |
243 | { "libobjc", 7 }, | |
9e8d33e7 | 244 | { "libgcj", 6 }, |
b044cda1 CW |
245 | { NULL, 0 } |
246 | }; | |
775cabad NC |
247 | |
248 | static autofilter_entry_type autofilter_objlist[] = | |
249 | { | |
b044cda1 CW |
250 | { "crt0.o", 6 }, |
251 | { "crt1.o", 6 }, | |
252 | { "crt2.o", 6 }, | |
5b784096 DD |
253 | { "dllcrt1.o", 9 }, |
254 | { "dllcrt2.o", 9 }, | |
59d28a94 | 255 | { "gcrt0.o", 7 }, |
663dd378 | 256 | { "gcrt1.o", 7 }, |
b7a26f91 | 257 | { "gcrt2.o", 7 }, |
70b0be79 CF |
258 | { "crtbegin.o", 10 }, |
259 | { "crtend.o", 8 }, | |
b044cda1 CW |
260 | { NULL, 0 } |
261 | }; | |
775cabad NC |
262 | |
263 | static autofilter_entry_type autofilter_symbolprefixlist[] = | |
264 | { | |
265 | /* { "__imp_", 6 }, */ | |
266 | /* Do __imp_ explicitly to save time. */ | |
b044cda1 | 267 | { "__rtti_", 7 }, |
39cebe23 NC |
268 | /* Don't re-export auto-imported symbols. */ |
269 | { "_nm_", 4 }, | |
b044cda1 | 270 | { "__builtin_", 10 }, |
775cabad NC |
271 | /* Don't export symbols specifying internal DLL layout. */ |
272 | { "_head_", 6 }, | |
b044cda1 CW |
273 | { "_fmode", 6 }, |
274 | { "_impure_ptr", 11 }, | |
275 | { "cygwin_attach_dll", 17 }, | |
276 | { "cygwin_premain0", 15 }, | |
277 | { "cygwin_premain1", 15 }, | |
278 | { "cygwin_premain2", 15 }, | |
279 | { "cygwin_premain3", 15 }, | |
280 | { "environ", 7 }, | |
281 | { NULL, 0 } | |
282 | }; | |
775cabad NC |
283 | |
284 | static autofilter_entry_type autofilter_symbolsuffixlist[] = | |
285 | { | |
b044cda1 CW |
286 | { "_iname", 6 }, |
287 | { NULL, 0 } | |
288 | }; | |
289 | ||
c6c37250 DD |
290 | #define U(str) (pe_details->underscored ? "_" str : str) |
291 | ||
292 | void | |
1579bae1 | 293 | pe_dll_id_target (const char *target) |
c6c37250 DD |
294 | { |
295 | int i; | |
775cabad | 296 | |
d643799d | 297 | for (i = 0; pe_detail_list[i].target_name; i++) |
9d68bc82 DD |
298 | if (strcmp (pe_detail_list[i].target_name, target) == 0 |
299 | || strcmp (pe_detail_list[i].object_target, target) == 0) | |
c6c37250 | 300 | { |
d643799d | 301 | pe_details = pe_detail_list + i; |
c6c37250 DD |
302 | return; |
303 | } | |
304 | einfo (_("%XUnsupported PEI architecture: %s\n"), target); | |
305 | exit (1); | |
306 | } | |
307 | ||
b7a26f91 | 308 | /* Helper functions for qsort. Relocs must be sorted so that we can write |
775cabad | 309 | them out by pages. */ |
252b5132 | 310 | |
775cabad NC |
311 | typedef struct |
312 | { | |
313 | bfd_vma vma; | |
314 | char type; | |
315 | short extra; | |
316 | } | |
317 | reloc_data_type; | |
c6c37250 | 318 | |
252b5132 | 319 | static int |
1579bae1 | 320 | reloc_sort (const void *va, const void *vb) |
252b5132 | 321 | { |
1579bae1 AM |
322 | bfd_vma a = ((const reloc_data_type *) va)->vma; |
323 | bfd_vma b = ((const reloc_data_type *) vb)->vma; | |
775cabad | 324 | |
c6c37250 | 325 | return (a > b) ? 1 : ((a < b) ? -1 : 0); |
252b5132 RH |
326 | } |
327 | ||
328 | static int | |
1579bae1 | 329 | pe_export_sort (const void *va, const void *vb) |
252b5132 | 330 | { |
1579bae1 AM |
331 | const def_file_export *a = va; |
332 | const def_file_export *b = vb; | |
775cabad | 333 | |
252b5132 RH |
334 | return strcmp (a->name, b->name); |
335 | } | |
336 | ||
775cabad | 337 | /* Read and process the .DEF file. */ |
252b5132 RH |
338 | |
339 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
340 | exported_symbol_sections[i] to tag whether or not the symbol was | |
5cc18311 | 341 | defined, since we can't export symbols we don't have. */ |
252b5132 RH |
342 | |
343 | static bfd_vma *exported_symbol_offsets; | |
198beae2 | 344 | static struct bfd_section **exported_symbol_sections; |
252b5132 RH |
345 | static int export_table_size; |
346 | static int count_exported; | |
347 | static int count_exported_byname; | |
348 | static int count_with_ordinals; | |
349 | static const char *dll_name; | |
350 | static int min_ordinal, max_ordinal; | |
351 | static int *exported_symbols; | |
352 | ||
775cabad NC |
353 | typedef struct exclude_list_struct |
354 | { | |
355 | char *string; | |
356 | struct exclude_list_struct *next; | |
658957db | 357 | int type; |
775cabad NC |
358 | } |
359 | exclude_list_struct; | |
86b1cc60 | 360 | |
252b5132 RH |
361 | static struct exclude_list_struct *excludes = 0; |
362 | ||
363 | void | |
1579bae1 | 364 | pe_dll_add_excludes (const char *new_excludes, const int type) |
252b5132 RH |
365 | { |
366 | char *local_copy; | |
367 | char *exclude_string; | |
368 | ||
369 | local_copy = xstrdup (new_excludes); | |
370 | ||
371 | exclude_string = strtok (local_copy, ",:"); | |
372 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
373 | { | |
374 | struct exclude_list_struct *new_exclude; | |
375 | ||
1579bae1 AM |
376 | new_exclude = xmalloc (sizeof (struct exclude_list_struct)); |
377 | new_exclude->string = xmalloc (strlen (exclude_string) + 1); | |
252b5132 | 378 | strcpy (new_exclude->string, exclude_string); |
70b0be79 | 379 | new_exclude->type = type; |
252b5132 RH |
380 | new_exclude->next = excludes; |
381 | excludes = new_exclude; | |
382 | } | |
383 | ||
384 | free (local_copy); | |
385 | } | |
386 | ||
70b0be79 | 387 | |
775cabad NC |
388 | /* abfd is a bfd containing n (or NULL) |
389 | It can be used for contextual checks. */ | |
390 | ||
252b5132 | 391 | static int |
1579bae1 | 392 | auto_export (bfd *abfd, def_file *d, const char *n) |
252b5132 RH |
393 | { |
394 | int i; | |
395 | struct exclude_list_struct *ex; | |
b044cda1 | 396 | autofilter_entry_type *afptr; |
70b0be79 CF |
397 | const char * libname = 0; |
398 | if (abfd && abfd->my_archive) | |
399 | libname = lbasename (abfd->my_archive->filename); | |
b044cda1 | 400 | |
775cabad | 401 | /* We should not re-export imported stuff. */ |
b044cda1 CW |
402 | if (strncmp (n, "_imp__", 6) == 0) |
403 | return 0; | |
404 | ||
252b5132 RH |
405 | for (i = 0; i < d->num_exports; i++) |
406 | if (strcmp (d->exports[i].name, n) == 0) | |
407 | return 0; | |
775cabad | 408 | |
252b5132 RH |
409 | if (pe_dll_do_default_excludes) |
410 | { | |
663dd378 | 411 | const char * p; |
775cabad NC |
412 | int len; |
413 | ||
b044cda1 | 414 | if (pe_dll_extra_pe_debug) |
775cabad NC |
415 | printf ("considering exporting: %s, abfd=%p, abfd->my_arc=%p\n", |
416 | n, abfd, abfd->my_archive); | |
b044cda1 CW |
417 | |
418 | /* First of all, make context checks: | |
1579bae1 | 419 | Don't export anything from standard libs. */ |
658957db | 420 | if (libname) |
b044cda1 CW |
421 | { |
422 | afptr = autofilter_liblist; | |
775cabad | 423 | |
b044cda1 CW |
424 | while (afptr->name) |
425 | { | |
70b0be79 | 426 | if (strncmp (libname, afptr->name, afptr->len) == 0 ) |
b044cda1 CW |
427 | return 0; |
428 | afptr++; | |
429 | } | |
430 | } | |
431 | ||
775cabad | 432 | /* Next, exclude symbols from certain startup objects. */ |
775cabad | 433 | |
59d28a94 | 434 | if (abfd && (p = lbasename (abfd->filename))) |
663dd378 | 435 | { |
b7a26f91 KH |
436 | afptr = autofilter_objlist; |
437 | while (afptr->name) | |
59d28a94 | 438 | { |
b7a26f91 KH |
439 | if (strcmp (p, afptr->name) == 0) |
440 | return 0; | |
59d28a94 | 441 | afptr++; |
663dd378 | 442 | } |
775cabad | 443 | } |
b044cda1 CW |
444 | |
445 | /* Don't try to blindly exclude all symbols | |
446 | that begin with '__'; this was tried and | |
775cabad | 447 | it is too restrictive. */ |
b044cda1 | 448 | |
775cabad | 449 | /* Then, exclude specific symbols. */ |
b044cda1 CW |
450 | afptr = autofilter_symbollist; |
451 | while (afptr->name) | |
452 | { | |
453 | if (strcmp (n, afptr->name) == 0) | |
454 | return 0; | |
775cabad | 455 | |
b7a26f91 | 456 | afptr++; |
b044cda1 CW |
457 | } |
458 | ||
775cabad | 459 | /* Next, exclude symbols starting with ... */ |
b044cda1 CW |
460 | afptr = autofilter_symbolprefixlist; |
461 | while (afptr->name) | |
462 | { | |
463 | if (strncmp (n, afptr->name, afptr->len) == 0) | |
464 | return 0; | |
775cabad | 465 | |
b7a26f91 | 466 | afptr++; |
b044cda1 CW |
467 | } |
468 | ||
775cabad NC |
469 | /* Finally, exclude symbols ending with ... */ |
470 | len = strlen (n); | |
471 | afptr = autofilter_symbolsuffixlist; | |
472 | while (afptr->name) | |
473 | { | |
b7a26f91 | 474 | if ((len >= afptr->len) |
775cabad | 475 | /* Add 1 to insure match with trailing '\0'. */ |
b7a26f91 KH |
476 | && strncmp (n + len - afptr->len, afptr->name, |
477 | afptr->len + 1) == 0) | |
775cabad NC |
478 | return 0; |
479 | ||
b7a26f91 | 480 | afptr++; |
775cabad | 481 | } |
252b5132 | 482 | } |
775cabad | 483 | |
252b5132 | 484 | for (ex = excludes; ex; ex = ex->next) |
70b0be79 CF |
485 | { |
486 | if (ex->type == 1) /* exclude-libs */ | |
487 | { | |
488 | if (libname | |
489 | && ((strcmp (libname, ex->string) == 0) | |
490 | || (strcasecmp ("ALL", ex->string) == 0))) | |
491 | return 0; | |
492 | } | |
493 | else if (strcmp (n, ex->string) == 0) | |
658957db | 494 | return 0; |
70b0be79 | 495 | } |
775cabad | 496 | |
252b5132 RH |
497 | return 1; |
498 | } | |
499 | ||
500 | static void | |
1579bae1 | 501 | process_def_file (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
252b5132 RH |
502 | { |
503 | int i, j; | |
504 | struct bfd_link_hash_entry *blhe; | |
505 | bfd *b; | |
198beae2 | 506 | struct bfd_section *s; |
d643799d | 507 | def_file_export *e = 0; |
252b5132 RH |
508 | |
509 | if (!pe_def_file) | |
510 | pe_def_file = def_file_empty (); | |
511 | ||
512 | /* First, run around to all the objects looking for the .drectve | |
86b1cc60 | 513 | sections, and push those into the def file too. */ |
252b5132 RH |
514 | for (b = info->input_bfds; b; b = b->link_next) |
515 | { | |
516 | s = bfd_get_section_by_name (b, ".drectve"); | |
517 | if (s) | |
518 | { | |
519 | int size = bfd_get_section_size_before_reloc (s); | |
520 | char *buf = xmalloc (size); | |
775cabad | 521 | |
252b5132 RH |
522 | bfd_get_section_contents (b, s, buf, 0, size); |
523 | def_file_add_directive (pe_def_file, buf, size); | |
524 | free (buf); | |
525 | } | |
526 | } | |
527 | ||
2b817be1 NC |
528 | /* If we are not building a DLL, when there are no exports |
529 | we do not build an export table at all. */ | |
530 | if (!pe_dll_export_everything && pe_def_file->num_exports == 0 | |
1579bae1 | 531 | && !info->shared) |
2b817be1 NC |
532 | return; |
533 | ||
86b1cc60 | 534 | /* Now, maybe export everything else the default way. */ |
252b5132 RH |
535 | if (pe_dll_export_everything || pe_def_file->num_exports == 0) |
536 | { | |
537 | for (b = info->input_bfds; b; b = b->link_next) | |
538 | { | |
539 | asymbol **symbols; | |
540 | int nsyms, symsize; | |
541 | ||
542 | symsize = bfd_get_symtab_upper_bound (b); | |
1579bae1 | 543 | symbols = xmalloc (symsize); |
252b5132 RH |
544 | nsyms = bfd_canonicalize_symtab (b, symbols); |
545 | ||
546 | for (j = 0; j < nsyms; j++) | |
547 | { | |
d643799d | 548 | /* We should export symbols which are either global or not |
1579bae1 AM |
549 | anything at all. (.bss data is the latter) |
550 | We should not export undefined symbols. */ | |
b044cda1 CW |
551 | if (symbols[j]->section != &bfd_und_section |
552 | && ((symbols[j]->flags & BSF_GLOBAL) | |
553 | || (symbols[j]->flags == BFD_FORT_COMM_DEFAULT_VALUE))) | |
252b5132 RH |
554 | { |
555 | const char *sn = symbols[j]->name; | |
b044cda1 | 556 | |
775cabad | 557 | /* We should not re-export imported stuff. */ |
b044cda1 | 558 | { |
1579bae1 | 559 | char *name = xmalloc (strlen (sn) + 2 + 6); |
b044cda1 | 560 | sprintf (name, "%s%s", U("_imp_"), sn); |
775cabad | 561 | |
b044cda1 | 562 | blhe = bfd_link_hash_lookup (info->hash, name, |
b34976b6 | 563 | FALSE, FALSE, FALSE); |
b044cda1 CW |
564 | free (name); |
565 | ||
b7a26f91 | 566 | if (blhe && blhe->type == bfd_link_hash_defined) |
b044cda1 CW |
567 | continue; |
568 | } | |
569 | ||
252b5132 RH |
570 | if (*sn == '_') |
571 | sn++; | |
775cabad | 572 | |
b044cda1 CW |
573 | if (auto_export (b, pe_def_file, sn)) |
574 | { | |
575 | def_file_export *p; | |
576 | p=def_file_add_export (pe_def_file, sn, 0, -1); | |
775cabad | 577 | /* Fill data flag properly, from dlltool.c. */ |
b044cda1 CW |
578 | p->flag_data = !(symbols[j]->flags & BSF_FUNCTION); |
579 | } | |
252b5132 RH |
580 | } |
581 | } | |
582 | } | |
583 | } | |
584 | ||
585 | #undef NE | |
586 | #define NE pe_def_file->num_exports | |
587 | ||
86b1cc60 | 588 | /* Canonicalize the export list. */ |
252b5132 RH |
589 | if (pe_dll_kill_ats) |
590 | { | |
591 | for (i = 0; i < NE; i++) | |
592 | { | |
593 | if (strchr (pe_def_file->exports[i].name, '@')) | |
594 | { | |
86b1cc60 | 595 | /* This will preserve internal_name, which may have been |
1579bae1 AM |
596 | pointing to the same memory as name, or might not |
597 | have. */ | |
598 | int lead_at = (*pe_def_file->exports[i].name == '@'); | |
c9e38879 | 599 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
775cabad | 600 | |
252b5132 RH |
601 | *(strchr (tmp, '@')) = 0; |
602 | pe_def_file->exports[i].name = tmp; | |
603 | } | |
604 | } | |
605 | } | |
606 | ||
607 | if (pe_dll_stdcall_aliases) | |
608 | { | |
609 | for (i = 0; i < NE; i++) | |
610 | { | |
611 | if (strchr (pe_def_file->exports[i].name, '@')) | |
612 | { | |
1579bae1 | 613 | int lead_at = (*pe_def_file->exports[i].name == '@'); |
c9e38879 | 614 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
775cabad | 615 | |
252b5132 | 616 | *(strchr (tmp, '@')) = 0; |
b044cda1 | 617 | if (auto_export (NULL, pe_def_file, tmp)) |
252b5132 | 618 | def_file_add_export (pe_def_file, tmp, |
b044cda1 CW |
619 | pe_def_file->exports[i].internal_name, |
620 | -1); | |
252b5132 RH |
621 | else |
622 | free (tmp); | |
623 | } | |
624 | } | |
625 | } | |
626 | ||
86b1cc60 KH |
627 | /* Convenience, but watch out for it changing. */ |
628 | e = pe_def_file->exports; | |
252b5132 | 629 | |
1579bae1 | 630 | exported_symbol_offsets = xmalloc (NE * sizeof (bfd_vma)); |
198beae2 | 631 | exported_symbol_sections = xmalloc (NE * sizeof (struct bfd_section *)); |
252b5132 | 632 | |
198beae2 | 633 | memset (exported_symbol_sections, 0, NE * sizeof (struct bfd_section *)); |
252b5132 RH |
634 | max_ordinal = 0; |
635 | min_ordinal = 65536; | |
636 | count_exported = 0; | |
637 | count_exported_byname = 0; | |
638 | count_with_ordinals = 0; | |
639 | ||
1579bae1 AM |
640 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), |
641 | pe_export_sort); | |
252b5132 RH |
642 | for (i = 0, j = 0; i < NE; i++) |
643 | { | |
644 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
645 | { | |
870df5dc | 646 | /* This is a duplicate. */ |
252b5132 RH |
647 | if (e[j - 1].ordinal != -1 |
648 | && e[i].ordinal != -1 | |
649 | && e[j - 1].ordinal != e[i].ordinal) | |
650 | { | |
870df5dc NC |
651 | if (pe_dll_warn_dup_exports) |
652 | /* xgettext:c-format */ | |
486e80e2 | 653 | einfo (_("%XError, duplicate EXPORT with ordinals: %s (%d vs %d)\n"), |
870df5dc | 654 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); |
252b5132 RH |
655 | } |
656 | else | |
657 | { | |
870df5dc NC |
658 | if (pe_dll_warn_dup_exports) |
659 | /* xgettext:c-format */ | |
660 | einfo (_("Warning, duplicate EXPORT: %s\n"), | |
661 | e[j - 1].name); | |
252b5132 | 662 | } |
775cabad | 663 | |
486e80e2 | 664 | if (e[i].ordinal != -1) |
252b5132 RH |
665 | e[j - 1].ordinal = e[i].ordinal; |
666 | e[j - 1].flag_private |= e[i].flag_private; | |
667 | e[j - 1].flag_constant |= e[i].flag_constant; | |
668 | e[j - 1].flag_noname |= e[i].flag_noname; | |
669 | e[j - 1].flag_data |= e[i].flag_data; | |
670 | } | |
671 | else | |
672 | { | |
673 | if (i != j) | |
674 | e[j] = e[i]; | |
675 | j++; | |
676 | } | |
677 | } | |
678 | pe_def_file->num_exports = j; /* == NE */ | |
679 | ||
680 | for (i = 0; i < NE; i++) | |
681 | { | |
1579bae1 | 682 | char *name; |
775cabad | 683 | |
1579bae1 | 684 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 NC |
685 | if (pe_details->underscored |
686 | && (*pe_def_file->exports[i].internal_name != '@')) | |
c6c37250 DD |
687 | { |
688 | *name = '_'; | |
689 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
690 | } | |
691 | else | |
692 | strcpy (name, pe_def_file->exports[i].internal_name); | |
252b5132 RH |
693 | |
694 | blhe = bfd_link_hash_lookup (info->hash, | |
695 | name, | |
b34976b6 | 696 | FALSE, FALSE, TRUE); |
252b5132 | 697 | |
8a5b676c | 698 | if (blhe |
d643799d | 699 | && (blhe->type == bfd_link_hash_defined |
8a5b676c | 700 | || (blhe->type == bfd_link_hash_common))) |
252b5132 RH |
701 | { |
702 | count_exported++; | |
703 | if (!pe_def_file->exports[i].flag_noname) | |
704 | count_exported_byname++; | |
8a5b676c DD |
705 | |
706 | /* Only fill in the sections. The actual offsets are computed | |
707 | in fill_exported_offsets() after common symbols are laid | |
708 | out. */ | |
d643799d | 709 | if (blhe->type == bfd_link_hash_defined) |
8a5b676c DD |
710 | exported_symbol_sections[i] = blhe->u.def.section; |
711 | else | |
712 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
5cc18311 | 713 | |
252b5132 RH |
714 | if (pe_def_file->exports[i].ordinal != -1) |
715 | { | |
716 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
717 | max_ordinal = pe_def_file->exports[i].ordinal; | |
718 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
719 | min_ordinal = pe_def_file->exports[i].ordinal; | |
720 | count_with_ordinals++; | |
721 | } | |
722 | } | |
723 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
724 | { | |
725 | /* xgettext:c-format */ | |
726 | einfo (_("%XCannot export %s: symbol not defined\n"), | |
727 | pe_def_file->exports[i].internal_name); | |
728 | } | |
729 | else if (blhe) | |
730 | { | |
731 | /* xgettext:c-format */ | |
732 | einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"), | |
733 | pe_def_file->exports[i].internal_name, | |
734 | blhe->type, bfd_link_hash_defined); | |
735 | } | |
736 | else | |
737 | { | |
738 | /* xgettext:c-format */ | |
739 | einfo (_("%XCannot export %s: symbol not found\n"), | |
740 | pe_def_file->exports[i].internal_name); | |
741 | } | |
742 | free (name); | |
743 | } | |
744 | } | |
745 | ||
775cabad | 746 | /* Build the bfd that will contain .edata and .reloc sections. */ |
252b5132 RH |
747 | |
748 | static void | |
1579bae1 | 749 | build_filler_bfd (int include_edata) |
252b5132 RH |
750 | { |
751 | lang_input_statement_type *filler_file; | |
752 | filler_file = lang_add_input_file ("dll stuff", | |
753 | lang_input_file_is_fake_enum, | |
754 | NULL); | |
755 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", output_bfd); | |
756 | if (filler_bfd == NULL | |
757 | || !bfd_set_arch_mach (filler_bfd, | |
758 | bfd_get_arch (output_bfd), | |
759 | bfd_get_mach (output_bfd))) | |
760 | { | |
761 | einfo ("%X%P: can not create BFD %E\n"); | |
762 | return; | |
763 | } | |
764 | ||
c6c37250 | 765 | if (include_edata) |
252b5132 | 766 | { |
c6c37250 DD |
767 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
768 | if (edata_s == NULL | |
769 | || !bfd_set_section_flags (filler_bfd, edata_s, | |
770 | (SEC_HAS_CONTENTS | |
771 | | SEC_ALLOC | |
772 | | SEC_LOAD | |
773 | | SEC_KEEP | |
774 | | SEC_IN_MEMORY))) | |
775 | { | |
776 | einfo ("%X%P: can not create .edata section: %E\n"); | |
777 | return; | |
778 | } | |
779 | bfd_set_section_size (filler_bfd, edata_s, edata_sz); | |
252b5132 | 780 | } |
252b5132 RH |
781 | |
782 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
783 | if (reloc_s == NULL | |
784 | || !bfd_set_section_flags (filler_bfd, reloc_s, | |
785 | (SEC_HAS_CONTENTS | |
786 | | SEC_ALLOC | |
787 | | SEC_LOAD | |
788 | | SEC_KEEP | |
789 | | SEC_IN_MEMORY))) | |
790 | { | |
791 | einfo ("%X%P: can not create .reloc section: %E\n"); | |
792 | return; | |
793 | } | |
775cabad | 794 | |
252b5132 RH |
795 | bfd_set_section_size (filler_bfd, reloc_s, 0); |
796 | ||
797 | ldlang_add_file (filler_file); | |
798 | } | |
799 | ||
775cabad | 800 | /* Gather all the exported symbols and build the .edata section. */ |
252b5132 RH |
801 | |
802 | static void | |
1579bae1 | 803 | generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 RH |
804 | { |
805 | int i, next_ordinal; | |
806 | int name_table_size = 0; | |
807 | const char *dlnp; | |
808 | ||
809 | /* First, we need to know how many exported symbols there are, | |
5cc18311 | 810 | and what the range of ordinals is. */ |
252b5132 | 811 | if (pe_def_file->name) |
775cabad | 812 | dll_name = pe_def_file->name; |
252b5132 RH |
813 | else |
814 | { | |
815 | dll_name = abfd->filename; | |
775cabad | 816 | |
252b5132 | 817 | for (dlnp = dll_name; *dlnp; dlnp++) |
775cabad NC |
818 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') |
819 | dll_name = dlnp + 1; | |
252b5132 RH |
820 | } |
821 | ||
822 | if (count_with_ordinals && max_ordinal > count_exported) | |
823 | { | |
824 | if (min_ordinal > max_ordinal - count_exported + 1) | |
825 | min_ordinal = max_ordinal - count_exported + 1; | |
826 | } | |
827 | else | |
828 | { | |
829 | min_ordinal = 1; | |
830 | max_ordinal = count_exported; | |
831 | } | |
252b5132 | 832 | |
775cabad | 833 | export_table_size = max_ordinal - min_ordinal + 1; |
1579bae1 | 834 | exported_symbols = xmalloc (export_table_size * sizeof (int)); |
252b5132 RH |
835 | for (i = 0; i < export_table_size; i++) |
836 | exported_symbols[i] = -1; | |
837 | ||
86b1cc60 | 838 | /* Now we need to assign ordinals to those that don't have them. */ |
252b5132 RH |
839 | for (i = 0; i < NE; i++) |
840 | { | |
841 | if (exported_symbol_sections[i]) | |
842 | { | |
843 | if (pe_def_file->exports[i].ordinal != -1) | |
844 | { | |
845 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
846 | int pi = exported_symbols[ei]; | |
775cabad | 847 | |
252b5132 RH |
848 | if (pi != -1) |
849 | { | |
850 | /* xgettext:c-format */ | |
486e80e2 | 851 | einfo (_("%XError, ordinal used twice: %d (%s vs %s)\n"), |
252b5132 RH |
852 | pe_def_file->exports[i].ordinal, |
853 | pe_def_file->exports[i].name, | |
854 | pe_def_file->exports[pi].name); | |
855 | } | |
856 | exported_symbols[ei] = i; | |
857 | } | |
858 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
859 | } | |
860 | } | |
861 | ||
862 | next_ordinal = min_ordinal; | |
863 | for (i = 0; i < NE; i++) | |
864 | if (exported_symbol_sections[i]) | |
865 | if (pe_def_file->exports[i].ordinal == -1) | |
866 | { | |
867 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
b7a26f91 | 868 | next_ordinal++; |
775cabad | 869 | |
252b5132 RH |
870 | exported_symbols[next_ordinal - min_ordinal] = i; |
871 | pe_def_file->exports[i].ordinal = next_ordinal; | |
872 | } | |
873 | ||
86b1cc60 | 874 | /* OK, now we can allocate some memory. */ |
775cabad NC |
875 | edata_sz = (40 /* directory */ |
876 | + 4 * export_table_size /* addresses */ | |
252b5132 RH |
877 | + 4 * count_exported_byname /* name ptrs */ |
878 | + 2 * count_exported_byname /* ordinals */ | |
879 | + name_table_size + strlen (dll_name) + 1); | |
880 | } | |
881 | ||
8a5b676c DD |
882 | /* Fill the exported symbol offsets. The preliminary work has already |
883 | been done in process_def_file(). */ | |
884 | ||
885 | static void | |
1579bae1 | 886 | fill_exported_offsets (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
8a5b676c | 887 | { |
f0c87f88 | 888 | int i; |
8a5b676c | 889 | struct bfd_link_hash_entry *blhe; |
5cc18311 | 890 | |
8a5b676c DD |
891 | for (i = 0; i < pe_def_file->num_exports; i++) |
892 | { | |
1579bae1 | 893 | char *name; |
775cabad | 894 | |
1579bae1 | 895 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 | 896 | if (pe_details->underscored |
1579bae1 | 897 | && *pe_def_file->exports[i].internal_name != '@') |
8a5b676c DD |
898 | { |
899 | *name = '_'; | |
900 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
901 | } | |
902 | else | |
903 | strcpy (name, pe_def_file->exports[i].internal_name); | |
904 | ||
905 | blhe = bfd_link_hash_lookup (info->hash, | |
906 | name, | |
b34976b6 | 907 | FALSE, FALSE, TRUE); |
8a5b676c | 908 | |
1579bae1 | 909 | if (blhe && blhe->type == bfd_link_hash_defined) |
775cabad NC |
910 | exported_symbol_offsets[i] = blhe->u.def.value; |
911 | ||
8a5b676c DD |
912 | free (name); |
913 | } | |
914 | } | |
915 | ||
252b5132 | 916 | static void |
1579bae1 | 917 | fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 | 918 | { |
03a1c9a7 | 919 | int s, hint; |
252b5132 | 920 | unsigned char *edirectory; |
ee31fbd0 NC |
921 | uint32_t *eaddresses; |
922 | uint32_t *enameptrs; | |
252b5132 RH |
923 | unsigned short *eordinals; |
924 | unsigned char *enamestr; | |
925 | time_t now; | |
926 | ||
927 | time (&now); | |
928 | ||
1579bae1 | 929 | edata_d = xmalloc (edata_sz); |
252b5132 | 930 | |
86b1cc60 | 931 | /* Note use of array pointer math here. */ |
252b5132 | 932 | edirectory = edata_d; |
ee31fbd0 | 933 | eaddresses = (uint32_t *) (edata_d + 40); |
252b5132 RH |
934 | enameptrs = eaddresses + export_table_size; |
935 | eordinals = (unsigned short *) (enameptrs + count_exported_byname); | |
936 | enamestr = (char *) (eordinals + count_exported_byname); | |
937 | ||
1579bae1 AM |
938 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) \ |
939 | + edata_s->output_section->vma - image_base) | |
252b5132 | 940 | |
c2a94a7a | 941 | memset (edata_d, 0, edata_sz); |
252b5132 RH |
942 | bfd_put_32 (abfd, now, edata_d + 4); |
943 | if (pe_def_file->version_major != -1) | |
944 | { | |
945 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
946 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
947 | } | |
775cabad | 948 | |
252b5132 RH |
949 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); |
950 | strcpy (enamestr, dll_name); | |
951 | enamestr += strlen (enamestr) + 1; | |
952 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
953 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
954 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
955 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
956 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
957 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
958 | ||
8a5b676c DD |
959 | fill_exported_offsets (abfd, info); |
960 | ||
03a1c9a7 NC |
961 | /* Ok, now for the filling in part. |
962 | Scan alphabetically - ie the ordering in the exports[] table, | |
963 | rather than by ordinal - the ordering in the exported_symbol[] | |
964 | table. See dlltool.c and: | |
965 | http://sources.redhat.com/ml/binutils/2003-04/msg00379.html | |
1579bae1 | 966 | for more information. */ |
252b5132 | 967 | hint = 0; |
03a1c9a7 | 968 | for (s = 0; s < NE; s++) |
252b5132 | 969 | { |
f5a95868 DS |
970 | struct bfd_section *ssec = exported_symbol_sections[s]; |
971 | if (ssec && pe_def_file->exports[s].ordinal != -1) | |
252b5132 | 972 | { |
252b5132 RH |
973 | unsigned long srva = (exported_symbol_offsets[s] |
974 | + ssec->output_section->vma | |
975 | + ssec->output_offset); | |
45b1f63c | 976 | int ord = pe_def_file->exports[s].ordinal; |
252b5132 | 977 | |
45b1f63c DD |
978 | bfd_put_32 (abfd, srva - image_base, |
979 | (void *) (eaddresses + ord - min_ordinal)); | |
775cabad | 980 | |
252b5132 RH |
981 | if (!pe_def_file->exports[s].flag_noname) |
982 | { | |
983 | char *ename = pe_def_file->exports[s].name; | |
03a1c9a7 | 984 | |
252b5132 | 985 | bfd_put_32 (abfd, ERVA (enamestr), (void *) enameptrs); |
45b1f63c | 986 | enameptrs++; |
252b5132 RH |
987 | strcpy (enamestr, ename); |
988 | enamestr += strlen (enamestr) + 1; | |
45b1f63c DD |
989 | bfd_put_16 (abfd, ord - min_ordinal, (void *) eordinals); |
990 | eordinals++; | |
252b5132 RH |
991 | pe_def_file->exports[s].hint = hint++; |
992 | } | |
252b5132 RH |
993 | } |
994 | } | |
995 | } | |
996 | ||
b044cda1 | 997 | |
198beae2 | 998 | static struct bfd_section *current_sec; |
b044cda1 CW |
999 | |
1000 | void | |
1579bae1 AM |
1001 | pe_walk_relocs_of_symbol (struct bfd_link_info *info, |
1002 | const char *name, | |
1003 | int (*cb) (arelent *, asection *)) | |
b044cda1 CW |
1004 | { |
1005 | bfd *b; | |
0d888aac | 1006 | asection *s; |
b044cda1 CW |
1007 | |
1008 | for (b = info->input_bfds; b; b = b->link_next) | |
1009 | { | |
775cabad NC |
1010 | asymbol **symbols; |
1011 | int nsyms, symsize; | |
1012 | ||
1013 | symsize = bfd_get_symtab_upper_bound (b); | |
1579bae1 | 1014 | symbols = xmalloc (symsize); |
775cabad | 1015 | nsyms = bfd_canonicalize_symtab (b, symbols); |
b044cda1 CW |
1016 | |
1017 | for (s = b->sections; s; s = s->next) | |
1018 | { | |
775cabad NC |
1019 | arelent **relocs; |
1020 | int relsize, nrelocs, i; | |
b044cda1 CW |
1021 | int flags = bfd_get_section_flags (b, s); |
1022 | ||
775cabad | 1023 | /* Skip discarded linkonce sections. */ |
b044cda1 CW |
1024 | if (flags & SEC_LINK_ONCE |
1025 | && s->output_section == bfd_abs_section_ptr) | |
1026 | continue; | |
1027 | ||
0d888aac | 1028 | current_sec = s; |
b044cda1 | 1029 | |
b044cda1 | 1030 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1031 | relocs = xmalloc (relsize); |
b044cda1 CW |
1032 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1033 | ||
1034 | for (i = 0; i < nrelocs; i++) | |
1035 | { | |
fc0a2244 | 1036 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad NC |
1037 | |
1038 | if (!strcmp (name, sym->name)) | |
1039 | cb (relocs[i], s); | |
b044cda1 | 1040 | } |
775cabad | 1041 | |
b044cda1 | 1042 | free (relocs); |
775cabad | 1043 | |
b044cda1 CW |
1044 | /* Warning: the allocated symbols are remembered in BFD and reused |
1045 | later, so don't free them! */ | |
1046 | /* free (symbols); */ | |
1047 | } | |
1048 | } | |
1049 | } | |
1050 | ||
775cabad | 1051 | /* Gather all the relocations and build the .reloc section. */ |
252b5132 RH |
1052 | |
1053 | static void | |
1579bae1 | 1054 | generate_reloc (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
1055 | { |
1056 | ||
86b1cc60 | 1057 | /* For .reloc stuff. */ |
c6c37250 | 1058 | reloc_data_type *reloc_data; |
252b5132 RH |
1059 | int total_relocs = 0; |
1060 | int i; | |
1579bae1 | 1061 | unsigned long sec_page = (unsigned long) -1; |
252b5132 RH |
1062 | unsigned long page_ptr, page_count; |
1063 | int bi; | |
1064 | bfd *b; | |
198beae2 | 1065 | struct bfd_section *s; |
252b5132 RH |
1066 | |
1067 | total_relocs = 0; | |
1068 | for (b = info->input_bfds; b; b = b->link_next) | |
1069 | for (s = b->sections; s; s = s->next) | |
1070 | total_relocs += s->reloc_count; | |
1071 | ||
1579bae1 | 1072 | reloc_data = xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
1073 | |
1074 | total_relocs = 0; | |
1075 | bi = 0; | |
1076 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next) | |
1077 | { | |
1078 | arelent **relocs; | |
1079 | int relsize, nrelocs, i; | |
1080 | ||
1081 | for (s = b->sections; s; s = s->next) | |
1082 | { | |
1083 | unsigned long sec_vma = s->output_section->vma + s->output_offset; | |
1084 | asymbol **symbols; | |
1085 | int nsyms, symsize; | |
1086 | ||
86b1cc60 | 1087 | /* If it's not loaded, we don't need to relocate it this way. */ |
252b5132 RH |
1088 | if (!(s->output_section->flags & SEC_LOAD)) |
1089 | continue; | |
1090 | ||
1091 | /* I don't know why there would be a reloc for these, but I've | |
86b1cc60 | 1092 | seen it happen - DJ */ |
252b5132 RH |
1093 | if (s->output_section == &bfd_abs_section) |
1094 | continue; | |
1095 | ||
1096 | if (s->output_section->vma == 0) | |
1097 | { | |
86b1cc60 | 1098 | /* Huh? Shouldn't happen, but punt if it does. */ |
252b5132 RH |
1099 | einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n", |
1100 | s->output_section->name, s->output_section->index, | |
1101 | s->output_section->flags); | |
1102 | continue; | |
1103 | } | |
1104 | ||
1105 | symsize = bfd_get_symtab_upper_bound (b); | |
1579bae1 | 1106 | symbols = xmalloc (symsize); |
252b5132 RH |
1107 | nsyms = bfd_canonicalize_symtab (b, symbols); |
1108 | ||
1109 | relsize = bfd_get_reloc_upper_bound (b, s); | |
1579bae1 | 1110 | relocs = xmalloc (relsize); |
252b5132 RH |
1111 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1112 | ||
1113 | for (i = 0; i < nrelocs; i++) | |
1114 | { | |
b044cda1 | 1115 | if (pe_dll_extra_pe_debug) |
b7a26f91 | 1116 | { |
fc0a2244 | 1117 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
b7a26f91 | 1118 | printf ("rel: %s\n", sym->name); |
b044cda1 | 1119 | } |
252b5132 | 1120 | if (!relocs[i]->howto->pc_relative |
c6c37250 | 1121 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 1122 | { |
c6c37250 | 1123 | bfd_vma sym_vma; |
fc0a2244 | 1124 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad | 1125 | |
c6c37250 DD |
1126 | sym_vma = (relocs[i]->addend |
1127 | + sym->value | |
1128 | + sym->section->vma | |
1129 | + sym->section->output_offset | |
1130 | + sym->section->output_section->vma); | |
1131 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; | |
5cc18311 | 1132 | |
344a211f | 1133 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) |
5cc18311 | 1134 | |
344a211f NC |
1135 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, |
1136 | relocs[i]->howto->rightshift) | |
252b5132 | 1137 | { |
344a211f | 1138 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
1139 | reloc_data[total_relocs].type = 3; |
1140 | total_relocs++; | |
252b5132 | 1141 | break; |
344a211f NC |
1142 | case BITS_AND_SHIFT (16, 0): |
1143 | reloc_data[total_relocs].type = 2; | |
1144 | total_relocs++; | |
1145 | break; | |
1146 | case BITS_AND_SHIFT (16, 16): | |
1147 | reloc_data[total_relocs].type = 4; | |
86b1cc60 KH |
1148 | /* FIXME: we can't know the symbol's right value |
1149 | yet, but we probably can safely assume that | |
1150 | CE will relocate us in 64k blocks, so leaving | |
1151 | it zero is safe. */ | |
344a211f NC |
1152 | reloc_data[total_relocs].extra = 0; |
1153 | total_relocs++; | |
1154 | break; | |
1155 | case BITS_AND_SHIFT (26, 2): | |
1156 | reloc_data[total_relocs].type = 5; | |
1157 | total_relocs++; | |
1158 | break; | |
fea39bcb | 1159 | case BITS_AND_SHIFT (24, 2): |
d3793eaa NC |
1160 | /* FIXME: 0 is ARM_26D, it is defined in bfd/coff-arm.c |
1161 | Those ARM_xxx definitions should go in proper | |
1162 | header someday. */ | |
1163 | if (relocs[i]->howto->type == 0 | |
1164 | /* Older GNU linkers used 5 instead of 0 for this reloc. */ | |
1165 | || relocs[i]->howto->type == 5) | |
fea39bcb NC |
1166 | /* This is an ARM_26D reloc, which is an ARM_26 reloc |
1167 | that has already been fully processed during a | |
1168 | previous link stage, so ignore it here. */ | |
1169 | break; | |
1170 | /* Fall through. */ | |
252b5132 RH |
1171 | default: |
1172 | /* xgettext:c-format */ | |
1173 | einfo (_("%XError: %d-bit reloc in dll\n"), | |
1174 | relocs[i]->howto->bitsize); | |
1175 | break; | |
1176 | } | |
1177 | } | |
1178 | } | |
1179 | free (relocs); | |
86b1cc60 KH |
1180 | /* Warning: the allocated symbols are remembered in BFD and |
1181 | reused later, so don't free them! */ | |
7bfd51a3 KH |
1182 | #if 0 |
1183 | free (symbol); | |
1184 | #endif | |
252b5132 RH |
1185 | } |
1186 | } | |
1187 | ||
1188 | /* At this point, we have total_relocs relocation addresses in | |
1189 | reloc_addresses, which are all suitable for the .reloc section. | |
5cc18311 | 1190 | We must now create the new sections. */ |
c6c37250 | 1191 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
1192 | |
1193 | for (i = 0; i < total_relocs; i++) | |
1194 | { | |
c6c37250 | 1195 | unsigned long this_page = (reloc_data[i].vma >> 12); |
5cc18311 | 1196 | |
252b5132 RH |
1197 | if (this_page != sec_page) |
1198 | { | |
775cabad | 1199 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
252b5132 RH |
1200 | reloc_sz += 8; |
1201 | sec_page = this_page; | |
1202 | } | |
5cc18311 | 1203 | |
252b5132 | 1204 | reloc_sz += 2; |
5cc18311 | 1205 | |
344a211f NC |
1206 | if (reloc_data[i].type == 4) |
1207 | reloc_sz += 2; | |
252b5132 | 1208 | } |
b7a26f91 | 1209 | |
775cabad | 1210 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
1579bae1 AM |
1211 | reloc_d = xmalloc (reloc_sz); |
1212 | sec_page = (unsigned long) -1; | |
252b5132 | 1213 | reloc_sz = 0; |
1579bae1 | 1214 | page_ptr = (unsigned long) -1; |
252b5132 | 1215 | page_count = 0; |
775cabad | 1216 | |
252b5132 RH |
1217 | for (i = 0; i < total_relocs; i++) |
1218 | { | |
c6c37250 | 1219 | unsigned long rva = reloc_data[i].vma - image_base; |
252b5132 | 1220 | unsigned long this_page = (rva & ~0xfff); |
775cabad | 1221 | |
252b5132 RH |
1222 | if (this_page != sec_page) |
1223 | { | |
1224 | while (reloc_sz & 3) | |
1225 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1226 | |
1579bae1 | 1227 | if (page_ptr != (unsigned long) -1) |
252b5132 | 1228 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1229 | |
252b5132 RH |
1230 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); |
1231 | page_ptr = reloc_sz; | |
1232 | reloc_sz += 8; | |
1233 | sec_page = this_page; | |
1234 | page_count = 0; | |
1235 | } | |
775cabad | 1236 | |
d643799d | 1237 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type << 12), |
c6c37250 | 1238 | reloc_d + reloc_sz); |
252b5132 | 1239 | reloc_sz += 2; |
775cabad | 1240 | |
c6c37250 DD |
1241 | if (reloc_data[i].type == 4) |
1242 | { | |
1243 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
1244 | reloc_sz += 2; | |
1245 | } | |
775cabad | 1246 | |
252b5132 RH |
1247 | page_count++; |
1248 | } | |
775cabad | 1249 | |
252b5132 RH |
1250 | while (reloc_sz & 3) |
1251 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1252 | |
1579bae1 | 1253 | if (page_ptr != (unsigned long) -1) |
252b5132 | 1254 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1255 | |
252b5132 RH |
1256 | while (reloc_sz < reloc_s->_raw_size) |
1257 | reloc_d[reloc_sz++] = 0; | |
1258 | } | |
1259 | ||
775cabad NC |
1260 | /* Given the exiting def_file structure, print out a .DEF file that |
1261 | corresponds to it. */ | |
252b5132 RH |
1262 | |
1263 | static void | |
1579bae1 | 1264 | quoteput (char *s, FILE *f, int needs_quotes) |
252b5132 RH |
1265 | { |
1266 | char *cp; | |
775cabad | 1267 | |
252b5132 RH |
1268 | for (cp = s; *cp; cp++) |
1269 | if (*cp == '\'' | |
1270 | || *cp == '"' | |
1271 | || *cp == '\\' | |
3882b010 | 1272 | || ISSPACE (*cp) |
252b5132 RH |
1273 | || *cp == ',' |
1274 | || *cp == ';') | |
1275 | needs_quotes = 1; | |
775cabad | 1276 | |
252b5132 RH |
1277 | if (needs_quotes) |
1278 | { | |
1279 | putc ('"', f); | |
775cabad | 1280 | |
252b5132 RH |
1281 | while (*s) |
1282 | { | |
1283 | if (*s == '"' || *s == '\\') | |
1284 | putc ('\\', f); | |
775cabad | 1285 | |
252b5132 RH |
1286 | putc (*s, f); |
1287 | s++; | |
1288 | } | |
775cabad | 1289 | |
252b5132 RH |
1290 | putc ('"', f); |
1291 | } | |
1292 | else | |
1293 | fputs (s, f); | |
1294 | } | |
1295 | ||
1296 | void | |
1579bae1 | 1297 | pe_dll_generate_def_file (const char *pe_out_def_filename) |
252b5132 RH |
1298 | { |
1299 | int i; | |
1300 | FILE *out = fopen (pe_out_def_filename, "w"); | |
775cabad | 1301 | |
252b5132 | 1302 | if (out == NULL) |
775cabad NC |
1303 | /* xgettext:c-format */ |
1304 | einfo (_("%s: Can't open output def file %s\n"), | |
1305 | program_name, pe_out_def_filename); | |
252b5132 RH |
1306 | |
1307 | if (pe_def_file) | |
1308 | { | |
1309 | if (pe_def_file->name) | |
1310 | { | |
1311 | if (pe_def_file->is_dll) | |
1312 | fprintf (out, "LIBRARY "); | |
1313 | else | |
1314 | fprintf (out, "NAME "); | |
775cabad | 1315 | |
252b5132 | 1316 | quoteput (pe_def_file->name, out, 1); |
775cabad | 1317 | |
252b5132 RH |
1318 | if (pe_data (output_bfd)->pe_opthdr.ImageBase) |
1319 | fprintf (out, " BASE=0x%lx", | |
1320 | (unsigned long) pe_data (output_bfd)->pe_opthdr.ImageBase); | |
1321 | fprintf (out, "\n"); | |
1322 | } | |
1323 | ||
1324 | if (pe_def_file->description) | |
1325 | { | |
1326 | fprintf (out, "DESCRIPTION "); | |
1327 | quoteput (pe_def_file->description, out, 1); | |
1328 | fprintf (out, "\n"); | |
1329 | } | |
1330 | ||
1331 | if (pe_def_file->version_minor != -1) | |
1332 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
1333 | pe_def_file->version_minor); | |
1334 | else if (pe_def_file->version_major != -1) | |
1335 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
1336 | ||
1337 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
1338 | fprintf (out, "\n"); | |
1339 | ||
1340 | if (pe_def_file->stack_commit != -1) | |
1341 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
1342 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
1343 | else if (pe_def_file->stack_reserve != -1) | |
1344 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
775cabad | 1345 | |
252b5132 RH |
1346 | if (pe_def_file->heap_commit != -1) |
1347 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1348 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1349 | else if (pe_def_file->heap_reserve != -1) | |
1350 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1351 | ||
1352 | if (pe_def_file->num_section_defs > 0) | |
1353 | { | |
1354 | fprintf (out, "\nSECTIONS\n\n"); | |
775cabad | 1355 | |
252b5132 RH |
1356 | for (i = 0; i < pe_def_file->num_section_defs; i++) |
1357 | { | |
1358 | fprintf (out, " "); | |
1359 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
775cabad | 1360 | |
252b5132 RH |
1361 | if (pe_def_file->section_defs[i].class) |
1362 | { | |
1363 | fprintf (out, " CLASS "); | |
1364 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1365 | } | |
775cabad | 1366 | |
252b5132 RH |
1367 | if (pe_def_file->section_defs[i].flag_read) |
1368 | fprintf (out, " READ"); | |
775cabad | 1369 | |
252b5132 RH |
1370 | if (pe_def_file->section_defs[i].flag_write) |
1371 | fprintf (out, " WRITE"); | |
775cabad | 1372 | |
252b5132 RH |
1373 | if (pe_def_file->section_defs[i].flag_execute) |
1374 | fprintf (out, " EXECUTE"); | |
775cabad | 1375 | |
252b5132 RH |
1376 | if (pe_def_file->section_defs[i].flag_shared) |
1377 | fprintf (out, " SHARED"); | |
775cabad | 1378 | |
252b5132 RH |
1379 | fprintf (out, "\n"); |
1380 | } | |
1381 | } | |
1382 | ||
1383 | if (pe_def_file->num_exports > 0) | |
1384 | { | |
b044cda1 | 1385 | fprintf (out, "EXPORTS\n"); |
775cabad | 1386 | |
252b5132 RH |
1387 | for (i = 0; i < pe_def_file->num_exports; i++) |
1388 | { | |
1389 | def_file_export *e = pe_def_file->exports + i; | |
1390 | fprintf (out, " "); | |
1391 | quoteput (e->name, out, 0); | |
775cabad | 1392 | |
252b5132 RH |
1393 | if (e->internal_name && strcmp (e->internal_name, e->name)) |
1394 | { | |
1395 | fprintf (out, " = "); | |
1396 | quoteput (e->internal_name, out, 0); | |
1397 | } | |
775cabad | 1398 | |
252b5132 RH |
1399 | if (e->ordinal != -1) |
1400 | fprintf (out, " @%d", e->ordinal); | |
775cabad | 1401 | |
252b5132 RH |
1402 | if (e->flag_private) |
1403 | fprintf (out, " PRIVATE"); | |
775cabad | 1404 | |
252b5132 RH |
1405 | if (e->flag_constant) |
1406 | fprintf (out, " CONSTANT"); | |
775cabad | 1407 | |
252b5132 RH |
1408 | if (e->flag_noname) |
1409 | fprintf (out, " NONAME"); | |
775cabad | 1410 | |
252b5132 RH |
1411 | if (e->flag_data) |
1412 | fprintf (out, " DATA"); | |
1413 | ||
1414 | fprintf (out, "\n"); | |
1415 | } | |
1416 | } | |
1417 | ||
1418 | if (pe_def_file->num_imports > 0) | |
1419 | { | |
1420 | fprintf (out, "\nIMPORTS\n\n"); | |
775cabad | 1421 | |
252b5132 RH |
1422 | for (i = 0; i < pe_def_file->num_imports; i++) |
1423 | { | |
1424 | def_file_import *im = pe_def_file->imports + i; | |
1425 | fprintf (out, " "); | |
775cabad | 1426 | |
252b5132 RH |
1427 | if (im->internal_name |
1428 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1429 | { | |
1430 | quoteput (im->internal_name, out, 0); | |
1431 | fprintf (out, " = "); | |
1432 | } | |
775cabad | 1433 | |
252b5132 RH |
1434 | quoteput (im->module->name, out, 0); |
1435 | fprintf (out, "."); | |
775cabad | 1436 | |
252b5132 RH |
1437 | if (im->name) |
1438 | quoteput (im->name, out, 0); | |
1439 | else | |
1440 | fprintf (out, "%d", im->ordinal); | |
775cabad | 1441 | |
252b5132 RH |
1442 | fprintf (out, "\n"); |
1443 | } | |
1444 | } | |
1445 | } | |
1446 | else | |
1447 | fprintf (out, _("; no contents available\n")); | |
1448 | ||
1449 | if (fclose (out) == EOF) | |
775cabad NC |
1450 | /* xgettext:c-format */ |
1451 | einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename); | |
252b5132 RH |
1452 | } |
1453 | ||
775cabad | 1454 | /* Generate the import library. */ |
252b5132 RH |
1455 | |
1456 | static asymbol **symtab; | |
1457 | static int symptr; | |
1458 | static int tmp_seq; | |
1459 | static const char *dll_filename; | |
1460 | static char *dll_symname; | |
1461 | ||
1462 | #define UNDSEC (asection *) &bfd_und_section | |
1463 | ||
1464 | static asection * | |
1579bae1 | 1465 | quick_section (bfd *abfd, const char *name, int flags, int align) |
252b5132 RH |
1466 | { |
1467 | asection *sec; | |
1468 | asymbol *sym; | |
1469 | ||
1470 | sec = bfd_make_section_old_way (abfd, name); | |
86b1cc60 | 1471 | bfd_set_section_flags (abfd, sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP); |
252b5132 | 1472 | bfd_set_section_alignment (abfd, sec, align); |
86b1cc60 | 1473 | /* Remember to undo this before trying to link internally! */ |
252b5132 RH |
1474 | sec->output_section = sec; |
1475 | ||
1476 | sym = bfd_make_empty_symbol (abfd); | |
1477 | symtab[symptr++] = sym; | |
1478 | sym->name = sec->name; | |
1479 | sym->section = sec; | |
1480 | sym->flags = BSF_LOCAL; | |
1481 | sym->value = 0; | |
1482 | ||
1483 | return sec; | |
1484 | } | |
1485 | ||
1486 | static void | |
1579bae1 AM |
1487 | quick_symbol (bfd *abfd, |
1488 | const char *n1, | |
1489 | const char *n2, | |
1490 | const char *n3, | |
1491 | asection *sec, | |
1492 | int flags, | |
1493 | int addr) | |
252b5132 RH |
1494 | { |
1495 | asymbol *sym; | |
1579bae1 | 1496 | char *name = xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); |
775cabad | 1497 | |
252b5132 RH |
1498 | strcpy (name, n1); |
1499 | strcat (name, n2); | |
1500 | strcat (name, n3); | |
1501 | sym = bfd_make_empty_symbol (abfd); | |
1502 | sym->name = name; | |
1503 | sym->section = sec; | |
1504 | sym->flags = flags; | |
1505 | sym->value = addr; | |
1506 | symtab[symptr++] = sym; | |
1507 | } | |
1508 | ||
1509 | static arelent *reltab = 0; | |
1510 | static int relcount = 0, relsize = 0; | |
1511 | ||
1512 | static void | |
1579bae1 | 1513 | quick_reloc (bfd *abfd, int address, int which_howto, int symidx) |
252b5132 | 1514 | { |
1579bae1 | 1515 | if (relcount >= relsize - 1) |
252b5132 RH |
1516 | { |
1517 | relsize += 10; | |
1518 | if (reltab) | |
1579bae1 | 1519 | reltab = xrealloc (reltab, relsize * sizeof (arelent)); |
252b5132 | 1520 | else |
1579bae1 | 1521 | reltab = xmalloc (relsize * sizeof (arelent)); |
252b5132 RH |
1522 | } |
1523 | reltab[relcount].address = address; | |
1524 | reltab[relcount].addend = 0; | |
1525 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
1526 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
1527 | relcount++; | |
1528 | } | |
1529 | ||
1530 | static void | |
1531 | save_relocs (asection *sec) | |
1532 | { | |
1533 | int i; | |
775cabad | 1534 | |
252b5132 RH |
1535 | sec->relocation = reltab; |
1536 | sec->reloc_count = relcount; | |
1579bae1 | 1537 | sec->orelocation = xmalloc ((relcount + 1) * sizeof (arelent *)); |
d643799d | 1538 | for (i = 0; i < relcount; i++) |
252b5132 RH |
1539 | sec->orelocation[i] = sec->relocation + i; |
1540 | sec->orelocation[relcount] = 0; | |
1541 | sec->flags |= SEC_RELOC; | |
1542 | reltab = 0; | |
1543 | relcount = relsize = 0; | |
1544 | } | |
1545 | ||
775cabad NC |
1546 | /* .section .idata$2 |
1547 | .global __head_my_dll | |
1548 | __head_my_dll: | |
1549 | .rva hname | |
1550 | .long 0 | |
1551 | .long 0 | |
1552 | .rva __my_dll_iname | |
1553 | .rva fthunk | |
b7a26f91 | 1554 | |
775cabad NC |
1555 | .section .idata$5 |
1556 | .long 0 | |
1557 | fthunk: | |
b7a26f91 | 1558 | |
775cabad NC |
1559 | .section .idata$4 |
1560 | .long 0 | |
1561 | hname: */ | |
252b5132 RH |
1562 | |
1563 | static bfd * | |
1579bae1 | 1564 | make_head (bfd *parent) |
252b5132 RH |
1565 | { |
1566 | asection *id2, *id5, *id4; | |
1567 | unsigned char *d2, *d5, *d4; | |
1568 | char *oname; | |
1569 | bfd *abfd; | |
1570 | ||
1579bae1 | 1571 | oname = xmalloc (20); |
252b5132 RH |
1572 | sprintf (oname, "d%06d.o", tmp_seq); |
1573 | tmp_seq++; | |
1574 | ||
1575 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1576 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1577 | bfd_make_writable (abfd); |
1578 | ||
1579 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1580 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1581 | |
1582 | symptr = 0; | |
1579bae1 | 1583 | symtab = xmalloc (6 * sizeof (asymbol *)); |
252b5132 RH |
1584 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
1585 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1586 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
d643799d KH |
1587 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
1588 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
c6c37250 DD |
1589 | |
1590 | /* OK, pay attention here. I got confused myself looking back at | |
1591 | it. We create a four-byte section to mark the beginning of the | |
1592 | list, and we include an offset of 4 in the section, so that the | |
1593 | pointer to the list points to the *end* of this section, which is | |
5cc18311 | 1594 | the start of the list of sections from other objects. */ |
252b5132 RH |
1595 | |
1596 | bfd_set_section_size (abfd, id2, 20); | |
1579bae1 | 1597 | d2 = xmalloc (20); |
252b5132 RH |
1598 | id2->contents = d2; |
1599 | memset (d2, 0, 20); | |
775cabad | 1600 | d2[0] = d2[16] = 4; /* Reloc addend. */ |
252b5132 RH |
1601 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
1602 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
1603 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
1604 | save_relocs (id2); | |
1605 | ||
1606 | bfd_set_section_size (abfd, id5, 4); | |
1579bae1 | 1607 | d5 = xmalloc (4); |
252b5132 RH |
1608 | id5->contents = d5; |
1609 | memset (d5, 0, 4); | |
1610 | ||
1611 | bfd_set_section_size (abfd, id4, 4); | |
1579bae1 | 1612 | d4 = xmalloc (4); |
252b5132 RH |
1613 | id4->contents = d4; |
1614 | memset (d4, 0, 4); | |
1615 | ||
1616 | bfd_set_symtab (abfd, symtab, symptr); | |
1617 | ||
1618 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
1619 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1620 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
5cc18311 | 1621 | |
252b5132 RH |
1622 | bfd_make_readable (abfd); |
1623 | return abfd; | |
1624 | } | |
1625 | ||
775cabad NC |
1626 | /* .section .idata$4 |
1627 | .long 0 | |
1628 | .section .idata$5 | |
1629 | .long 0 | |
1630 | .section idata$7 | |
1631 | .global __my_dll_iname | |
1632 | __my_dll_iname: | |
1633 | .asciz "my.dll" */ | |
252b5132 RH |
1634 | |
1635 | static bfd * | |
1579bae1 | 1636 | make_tail (bfd *parent) |
252b5132 RH |
1637 | { |
1638 | asection *id4, *id5, *id7; | |
1639 | unsigned char *d4, *d5, *d7; | |
1640 | int len; | |
1641 | char *oname; | |
1642 | bfd *abfd; | |
1643 | ||
1579bae1 | 1644 | oname = xmalloc (20); |
252b5132 RH |
1645 | sprintf (oname, "d%06d.o", tmp_seq); |
1646 | tmp_seq++; | |
1647 | ||
1648 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1649 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1650 | bfd_make_writable (abfd); |
1651 | ||
1652 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1653 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1654 | |
1655 | symptr = 0; | |
1579bae1 | 1656 | symtab = xmalloc (5 * sizeof (asymbol *)); |
252b5132 RH |
1657 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
1658 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1659 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
d643799d | 1660 | quick_symbol (abfd, U (""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 RH |
1661 | |
1662 | bfd_set_section_size (abfd, id4, 4); | |
1579bae1 | 1663 | d4 = xmalloc (4); |
252b5132 RH |
1664 | id4->contents = d4; |
1665 | memset (d4, 0, 4); | |
1666 | ||
1667 | bfd_set_section_size (abfd, id5, 4); | |
1579bae1 | 1668 | d5 = xmalloc (4); |
252b5132 RH |
1669 | id5->contents = d5; |
1670 | memset (d5, 0, 4); | |
1671 | ||
d643799d | 1672 | len = strlen (dll_filename) + 1; |
252b5132 | 1673 | if (len & 1) |
d643799d | 1674 | len++; |
252b5132 | 1675 | bfd_set_section_size (abfd, id7, len); |
1579bae1 | 1676 | d7 = xmalloc (len); |
252b5132 RH |
1677 | id7->contents = d7; |
1678 | strcpy (d7, dll_filename); | |
1679 | ||
1680 | bfd_set_symtab (abfd, symtab, symptr); | |
1681 | ||
1682 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1683 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1684 | bfd_set_section_contents (abfd, id7, d7, 0, len); | |
1685 | ||
1686 | bfd_make_readable (abfd); | |
1687 | return abfd; | |
1688 | } | |
1689 | ||
775cabad NC |
1690 | /* .text |
1691 | .global _function | |
1692 | .global ___imp_function | |
1693 | .global __imp__function | |
1694 | _function: | |
1695 | jmp *__imp__function: | |
b7a26f91 | 1696 | |
775cabad NC |
1697 | .section idata$7 |
1698 | .long __head_my_dll | |
b7a26f91 | 1699 | |
775cabad NC |
1700 | .section .idata$5 |
1701 | ___imp_function: | |
1702 | __imp__function: | |
1703 | iat? | |
1704 | .section .idata$4 | |
1705 | iat? | |
1706 | .section .idata$6 | |
1707 | ID<ordinal>: | |
1708 | .short <hint> | |
1709 | .asciz "function" xlate? (add underscore, kill at) */ | |
1710 | ||
1711 | static unsigned char jmp_ix86_bytes[] = | |
1712 | { | |
252b5132 RH |
1713 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 |
1714 | }; | |
1715 | ||
775cabad NC |
1716 | /* _function: |
1717 | mov.l ip+8,r0 | |
1718 | mov.l @r0,r0 | |
1719 | jmp @r0 | |
1720 | nop | |
1721 | .dw __imp_function */ | |
344a211f | 1722 | |
775cabad NC |
1723 | static unsigned char jmp_sh_bytes[] = |
1724 | { | |
344a211f NC |
1725 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 |
1726 | }; | |
1727 | ||
775cabad NC |
1728 | /* _function: |
1729 | lui $t0,<high:__imp_function> | |
1730 | lw $t0,<low:__imp_function> | |
1731 | jr $t0 | |
1732 | nop */ | |
344a211f | 1733 | |
775cabad NC |
1734 | static unsigned char jmp_mips_bytes[] = |
1735 | { | |
344a211f NC |
1736 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, |
1737 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
1738 | }; | |
252b5132 RH |
1739 | |
1740 | static bfd * | |
1579bae1 | 1741 | make_one (def_file_export *exp, bfd *parent) |
252b5132 RH |
1742 | { |
1743 | asection *tx, *id7, *id5, *id4, *id6; | |
23a87948 | 1744 | unsigned char *td = NULL, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
1745 | int len; |
1746 | char *oname; | |
1747 | bfd *abfd; | |
f0c87f88 NC |
1748 | unsigned char *jmp_bytes = NULL; |
1749 | int jmp_byte_count = 0; | |
c6c37250 DD |
1750 | |
1751 | switch (pe_details->pe_arch) | |
1752 | { | |
1753 | case PE_ARCH_i386: | |
1754 | jmp_bytes = jmp_ix86_bytes; | |
1755 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
1756 | break; | |
344a211f NC |
1757 | case PE_ARCH_sh: |
1758 | jmp_bytes = jmp_sh_bytes; | |
1759 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
1760 | break; | |
1761 | case PE_ARCH_mips: | |
1762 | jmp_bytes = jmp_mips_bytes; | |
1763 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
1764 | break; | |
775cabad NC |
1765 | default: |
1766 | abort (); | |
c6c37250 | 1767 | } |
252b5132 | 1768 | |
1579bae1 | 1769 | oname = xmalloc (20); |
252b5132 RH |
1770 | sprintf (oname, "d%06d.o", tmp_seq); |
1771 | tmp_seq++; | |
1772 | ||
1773 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1774 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1775 | bfd_make_writable (abfd); |
1776 | ||
1777 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1778 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1779 | |
1780 | symptr = 0; | |
1579bae1 | 1781 | symtab = xmalloc (11 * sizeof (asymbol *)); |
252b5132 RH |
1782 | tx = quick_section (abfd, ".text", SEC_CODE|SEC_HAS_CONTENTS, 2); |
1783 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
1784 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1785 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
1786 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
b34976b6 | 1787 | |
c9e38879 NC |
1788 | if (*exp->internal_name == '@') |
1789 | { | |
1579bae1 AM |
1790 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
1791 | BSF_GLOBAL, 0); | |
4b7f0676 NC |
1792 | if (! exp->flag_data) |
1793 | quick_symbol (abfd, "", exp->internal_name, "", tx, BSF_GLOBAL, 0); | |
1579bae1 AM |
1794 | quick_symbol (abfd, U ("_imp_"), exp->internal_name, "", id5, |
1795 | BSF_GLOBAL, 0); | |
c9e38879 NC |
1796 | /* Fastcall applies only to functions, |
1797 | so no need for auto-import symbol. */ | |
1798 | } | |
1799 | else | |
1800 | { | |
4b7f0676 NC |
1801 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
1802 | BSF_GLOBAL, 0); | |
c9e38879 | 1803 | if (! exp->flag_data) |
1579bae1 AM |
1804 | quick_symbol (abfd, U (""), exp->internal_name, "", tx, |
1805 | BSF_GLOBAL, 0); | |
1579bae1 AM |
1806 | quick_symbol (abfd, U ("_imp__"), exp->internal_name, "", id5, |
1807 | BSF_GLOBAL, 0); | |
c9e38879 | 1808 | /* Symbol to reference ord/name of imported |
1579bae1 | 1809 | data symbol, used to implement auto-import. */ |
c9e38879 | 1810 | if (exp->flag_data) |
1579bae1 AM |
1811 | quick_symbol (abfd, U("_nm__"), exp->internal_name, "", id6, |
1812 | BSF_GLOBAL,0); | |
c9e38879 | 1813 | } |
870df5dc | 1814 | if (pe_dll_compat_implib) |
1579bae1 AM |
1815 | quick_symbol (abfd, U ("__imp_"), exp->internal_name, "", id5, |
1816 | BSF_GLOBAL, 0); | |
252b5132 | 1817 | |
23a87948 | 1818 | if (! exp->flag_data) |
775cabad NC |
1819 | { |
1820 | bfd_set_section_size (abfd, tx, jmp_byte_count); | |
1579bae1 | 1821 | td = xmalloc (jmp_byte_count); |
775cabad NC |
1822 | tx->contents = td; |
1823 | memcpy (td, jmp_bytes, jmp_byte_count); | |
1824 | ||
1825 | switch (pe_details->pe_arch) | |
1826 | { | |
1827 | case PE_ARCH_i386: | |
1828 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); | |
1829 | break; | |
1830 | case PE_ARCH_sh: | |
1831 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
1832 | break; | |
1833 | case PE_ARCH_mips: | |
1834 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
1835 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
1836 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
1837 | break; | |
1838 | default: | |
1839 | abort (); | |
1840 | } | |
1841 | save_relocs (tx); | |
1842 | } | |
252b5132 RH |
1843 | |
1844 | bfd_set_section_size (abfd, id7, 4); | |
1579bae1 | 1845 | d7 = xmalloc (4); |
252b5132 RH |
1846 | id7->contents = d7; |
1847 | memset (d7, 0, 4); | |
4b7f0676 | 1848 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 5); |
252b5132 RH |
1849 | save_relocs (id7); |
1850 | ||
1851 | bfd_set_section_size (abfd, id5, 4); | |
1579bae1 | 1852 | d5 = xmalloc (4); |
252b5132 RH |
1853 | id5->contents = d5; |
1854 | memset (d5, 0, 4); | |
775cabad | 1855 | |
252b5132 RH |
1856 | if (exp->flag_noname) |
1857 | { | |
1858 | d5[0] = exp->ordinal; | |
1859 | d5[1] = exp->ordinal >> 8; | |
1860 | d5[3] = 0x80; | |
1861 | } | |
1862 | else | |
1863 | { | |
1864 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
1865 | save_relocs (id5); | |
1866 | } | |
1867 | ||
1868 | bfd_set_section_size (abfd, id4, 4); | |
1579bae1 | 1869 | d4 = xmalloc (4); |
252b5132 RH |
1870 | id4->contents = d4; |
1871 | memset (d4, 0, 4); | |
775cabad | 1872 | |
252b5132 RH |
1873 | if (exp->flag_noname) |
1874 | { | |
c2a94a7a DD |
1875 | d4[0] = exp->ordinal; |
1876 | d4[1] = exp->ordinal >> 8; | |
1877 | d4[3] = 0x80; | |
252b5132 RH |
1878 | } |
1879 | else | |
1880 | { | |
1881 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
1882 | save_relocs (id4); | |
1883 | } | |
1884 | ||
1885 | if (exp->flag_noname) | |
1886 | { | |
1887 | len = 0; | |
1888 | bfd_set_section_size (abfd, id6, 0); | |
1889 | } | |
1890 | else | |
1891 | { | |
1892 | len = strlen (exp->name) + 3; | |
1893 | if (len & 1) | |
1894 | len++; | |
1895 | bfd_set_section_size (abfd, id6, len); | |
1579bae1 | 1896 | d6 = xmalloc (len); |
252b5132 RH |
1897 | id6->contents = d6; |
1898 | memset (d6, 0, len); | |
1899 | d6[0] = exp->hint & 0xff; | |
1900 | d6[1] = exp->hint >> 8; | |
d643799d | 1901 | strcpy (d6 + 2, exp->name); |
252b5132 RH |
1902 | } |
1903 | ||
1904 | bfd_set_symtab (abfd, symtab, symptr); | |
1905 | ||
c6c37250 | 1906 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); |
252b5132 RH |
1907 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
1908 | bfd_set_section_contents (abfd, id5, d5, 0, 4); | |
1909 | bfd_set_section_contents (abfd, id4, d4, 0, 4); | |
1910 | if (!exp->flag_noname) | |
1911 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
1912 | ||
1913 | bfd_make_readable (abfd); | |
1914 | return abfd; | |
1915 | } | |
1916 | ||
b044cda1 | 1917 | static bfd * |
1579bae1 | 1918 | make_singleton_name_thunk (const char *import, bfd *parent) |
b044cda1 | 1919 | { |
775cabad | 1920 | /* Name thunks go to idata$4. */ |
b044cda1 CW |
1921 | asection *id4; |
1922 | unsigned char *d4; | |
1923 | char *oname; | |
1924 | bfd *abfd; | |
1925 | ||
1579bae1 | 1926 | oname = xmalloc (20); |
b044cda1 CW |
1927 | sprintf (oname, "nmth%06d.o", tmp_seq); |
1928 | tmp_seq++; | |
1929 | ||
1930 | abfd = bfd_create (oname, parent); | |
1931 | bfd_find_target (pe_details->object_target, abfd); | |
1932 | bfd_make_writable (abfd); | |
1933 | ||
1934 | bfd_set_format (abfd, bfd_object); | |
1935 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
1936 | ||
1937 | symptr = 0; | |
1579bae1 | 1938 | symtab = xmalloc (3 * sizeof (asymbol *)); |
b044cda1 CW |
1939 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
1940 | quick_symbol (abfd, U ("_nm_thnk_"), import, "", id4, BSF_GLOBAL, 0); | |
1941 | quick_symbol (abfd, U ("_nm_"), import, "", UNDSEC, BSF_GLOBAL, 0); | |
1942 | ||
1943 | bfd_set_section_size (abfd, id4, 8); | |
1579bae1 | 1944 | d4 = xmalloc (4); |
b044cda1 CW |
1945 | id4->contents = d4; |
1946 | memset (d4, 0, 8); | |
1947 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); | |
1948 | save_relocs (id4); | |
1949 | ||
1950 | bfd_set_symtab (abfd, symtab, symptr); | |
1951 | ||
1952 | bfd_set_section_contents (abfd, id4, d4, 0, 8); | |
1953 | ||
1954 | bfd_make_readable (abfd); | |
1955 | return abfd; | |
1956 | } | |
1957 | ||
1958 | static char * | |
1579bae1 | 1959 | make_import_fixup_mark (arelent *rel) |
b044cda1 | 1960 | { |
775cabad | 1961 | /* We convert reloc to symbol, for later reference. */ |
b044cda1 CW |
1962 | static int counter; |
1963 | static char *fixup_name = NULL; | |
db09f25b | 1964 | static size_t buffer_len = 0; |
b7a26f91 | 1965 | |
fc0a2244 | 1966 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b7a26f91 | 1967 | |
b044cda1 | 1968 | bfd *abfd = bfd_asymbol_bfd (sym); |
fe213ce2 | 1969 | struct bfd_link_hash_entry *bh; |
b044cda1 CW |
1970 | |
1971 | if (!fixup_name) | |
1972 | { | |
1579bae1 | 1973 | fixup_name = xmalloc (384); |
b044cda1 CW |
1974 | buffer_len = 384; |
1975 | } | |
1976 | ||
1977 | if (strlen (sym->name) + 25 > buffer_len) | |
b7a26f91 | 1978 | /* Assume 25 chars for "__fu" + counter + "_". If counter is |
b044cda1 | 1979 | bigger than 20 digits long, we've got worse problems than |
775cabad | 1980 | overflowing this buffer... */ |
b044cda1 CW |
1981 | { |
1982 | free (fixup_name); | |
a35bc64f NC |
1983 | /* New buffer size is length of symbol, plus 25, but |
1984 | then rounded up to the nearest multiple of 128. */ | |
b044cda1 | 1985 | buffer_len = ((strlen (sym->name) + 25) + 127) & ~127; |
1579bae1 | 1986 | fixup_name = xmalloc (buffer_len); |
b044cda1 | 1987 | } |
b7a26f91 | 1988 | |
b044cda1 CW |
1989 | sprintf (fixup_name, "__fu%d_%s", counter++, sym->name); |
1990 | ||
fe213ce2 | 1991 | bh = NULL; |
b7a26f91 | 1992 | bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL, |
b044cda1 | 1993 | current_sec, /* sym->section, */ |
b34976b6 | 1994 | rel->address, NULL, TRUE, FALSE, &bh); |
fe213ce2 AM |
1995 | |
1996 | if (0) | |
1997 | { | |
1998 | struct coff_link_hash_entry *myh; | |
1999 | ||
2000 | myh = (struct coff_link_hash_entry *) bh; | |
2001 | printf ("type:%d\n", myh->type); | |
2002 | printf ("%s\n", myh->root.u.def.section->name); | |
2003 | } | |
b044cda1 | 2004 | |
b044cda1 CW |
2005 | return fixup_name; |
2006 | } | |
2007 | ||
775cabad NC |
2008 | /* .section .idata$3 |
2009 | .rva __nm_thnk_SYM (singleton thunk with name of func) | |
2010 | .long 0 | |
2011 | .long 0 | |
2012 | .rva __my_dll_iname (name of dll) | |
2013 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
b044cda1 CW |
2014 | |
2015 | static bfd * | |
1579bae1 AM |
2016 | make_import_fixup_entry (const char *name, |
2017 | const char *fixup_name, | |
2018 | const char *dll_symname, | |
2019 | bfd *parent) | |
b044cda1 CW |
2020 | { |
2021 | asection *id3; | |
2022 | unsigned char *d3; | |
2023 | char *oname; | |
2024 | bfd *abfd; | |
2025 | ||
1579bae1 | 2026 | oname = xmalloc (20); |
b044cda1 CW |
2027 | sprintf (oname, "fu%06d.o", tmp_seq); |
2028 | tmp_seq++; | |
2029 | ||
2030 | abfd = bfd_create (oname, parent); | |
2031 | bfd_find_target (pe_details->object_target, abfd); | |
2032 | bfd_make_writable (abfd); | |
2033 | ||
2034 | bfd_set_format (abfd, bfd_object); | |
2035 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2036 | ||
2037 | symptr = 0; | |
1579bae1 | 2038 | symtab = xmalloc (6 * sizeof (asymbol *)); |
b044cda1 | 2039 | id3 = quick_section (abfd, ".idata$3", SEC_HAS_CONTENTS, 2); |
775cabad | 2040 | |
b7a26f91 KH |
2041 | #if 0 |
2042 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); | |
775cabad | 2043 | #endif |
b044cda1 CW |
2044 | quick_symbol (abfd, U ("_nm_thnk_"), name, "", UNDSEC, BSF_GLOBAL, 0); |
2045 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
2046 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2047 | ||
2048 | bfd_set_section_size (abfd, id3, 20); | |
1579bae1 | 2049 | d3 = xmalloc (20); |
b044cda1 CW |
2050 | id3->contents = d3; |
2051 | memset (d3, 0, 20); | |
2052 | ||
2053 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2054 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 2); | |
2055 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 3); | |
2056 | save_relocs (id3); | |
2057 | ||
2058 | bfd_set_symtab (abfd, symtab, symptr); | |
2059 | ||
2060 | bfd_set_section_contents (abfd, id3, d3, 0, 20); | |
2061 | ||
2062 | bfd_make_readable (abfd); | |
2063 | return abfd; | |
2064 | } | |
2065 | ||
2fa9fc65 NC |
2066 | /* .section .rdata_runtime_pseudo_reloc |
2067 | .long addend | |
2068 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
2069 | ||
2070 | static bfd * | |
1579bae1 AM |
2071 | make_runtime_pseudo_reloc (const char *name ATTRIBUTE_UNUSED, |
2072 | const char *fixup_name, | |
2073 | int addend, | |
2074 | bfd *parent) | |
2fa9fc65 NC |
2075 | { |
2076 | asection *rt_rel; | |
2077 | unsigned char *rt_rel_d; | |
2078 | char *oname; | |
2079 | bfd *abfd; | |
2080 | ||
1579bae1 | 2081 | oname = xmalloc (20); |
2fa9fc65 NC |
2082 | sprintf (oname, "rtr%06d.o", tmp_seq); |
2083 | tmp_seq++; | |
2084 | ||
2085 | abfd = bfd_create (oname, parent); | |
2086 | bfd_find_target (pe_details->object_target, abfd); | |
2087 | bfd_make_writable (abfd); | |
2088 | ||
2089 | bfd_set_format (abfd, bfd_object); | |
2090 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2091 | ||
2092 | symptr = 0; | |
1579bae1 AM |
2093 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2094 | rt_rel = quick_section (abfd, ".rdata_runtime_pseudo_reloc", | |
2095 | SEC_HAS_CONTENTS, 2); | |
2fa9fc65 NC |
2096 | |
2097 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2098 | ||
2099 | bfd_set_section_size (abfd, rt_rel, 8); | |
1579bae1 | 2100 | rt_rel_d = xmalloc (8); |
2fa9fc65 NC |
2101 | rt_rel->contents = rt_rel_d; |
2102 | memset (rt_rel_d, 0, 8); | |
2103 | bfd_put_32 (abfd, addend, rt_rel_d); | |
2104 | ||
2105 | quick_reloc (abfd, 4, BFD_RELOC_RVA, 1); | |
2106 | save_relocs (rt_rel); | |
2107 | ||
2108 | bfd_set_symtab (abfd, symtab, symptr); | |
2109 | ||
2110 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, 8); | |
2111 | ||
2112 | bfd_make_readable (abfd); | |
2113 | return abfd; | |
2114 | } | |
2115 | ||
2116 | /* .section .rdata | |
a35bc64f | 2117 | .rva __pei386_runtime_relocator */ |
2fa9fc65 NC |
2118 | |
2119 | static bfd * | |
1579bae1 | 2120 | pe_create_runtime_relocator_reference (bfd *parent) |
2fa9fc65 NC |
2121 | { |
2122 | asection *extern_rt_rel; | |
2123 | unsigned char *extern_rt_rel_d; | |
2124 | char *oname; | |
2125 | bfd *abfd; | |
2126 | ||
1579bae1 | 2127 | oname = xmalloc (20); |
2fa9fc65 NC |
2128 | sprintf (oname, "ertr%06d.o", tmp_seq); |
2129 | tmp_seq++; | |
2130 | ||
2131 | abfd = bfd_create (oname, parent); | |
2132 | bfd_find_target (pe_details->object_target, abfd); | |
2133 | bfd_make_writable (abfd); | |
2134 | ||
2135 | bfd_set_format (abfd, bfd_object); | |
2136 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2137 | ||
2138 | symptr = 0; | |
1579bae1 | 2139 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2fa9fc65 NC |
2140 | extern_rt_rel = quick_section (abfd, ".rdata", SEC_HAS_CONTENTS, 2); |
2141 | ||
1579bae1 AM |
2142 | quick_symbol (abfd, "", "__pei386_runtime_relocator", "", UNDSEC, |
2143 | BSF_NO_FLAGS, 0); | |
2fa9fc65 NC |
2144 | |
2145 | bfd_set_section_size (abfd, extern_rt_rel, 4); | |
1579bae1 | 2146 | extern_rt_rel_d = xmalloc (4); |
2fa9fc65 NC |
2147 | extern_rt_rel->contents = extern_rt_rel_d; |
2148 | ||
2149 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2150 | save_relocs (extern_rt_rel); | |
2151 | ||
2152 | bfd_set_symtab (abfd, symtab, symptr); | |
2153 | ||
2154 | bfd_set_section_contents (abfd, extern_rt_rel, extern_rt_rel_d, 0, 4); | |
2155 | ||
2156 | bfd_make_readable (abfd); | |
2157 | return abfd; | |
2158 | } | |
2159 | ||
b044cda1 | 2160 | void |
1579bae1 | 2161 | pe_create_import_fixup (arelent *rel, asection *s, int addend) |
b044cda1 CW |
2162 | { |
2163 | char buf[300]; | |
fc0a2244 | 2164 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b044cda1 | 2165 | struct bfd_link_hash_entry *name_thunk_sym; |
db09f25b | 2166 | const char *name = sym->name; |
b044cda1 | 2167 | char *fixup_name = make_import_fixup_mark (rel); |
2fa9fc65 | 2168 | bfd *b; |
b044cda1 CW |
2169 | |
2170 | sprintf (buf, U ("_nm_thnk_%s"), name); | |
2171 | ||
2172 | name_thunk_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); | |
2173 | ||
2174 | if (!name_thunk_sym || name_thunk_sym->type != bfd_link_hash_defined) | |
2175 | { | |
2176 | bfd *b = make_singleton_name_thunk (name, output_bfd); | |
2177 | add_bfd_to_link (b, b->filename, &link_info); | |
2178 | ||
775cabad | 2179 | /* If we ever use autoimport, we have to cast text section writable. */ |
b34976b6 | 2180 | config.text_read_only = FALSE; |
4d8907ac | 2181 | output_bfd->flags &= ~WP_TEXT; |
b044cda1 CW |
2182 | } |
2183 | ||
2fa9fc65 NC |
2184 | if (addend == 0 || link_info.pei386_runtime_pseudo_reloc) |
2185 | { | |
2186 | extern char * pe_data_import_dll; | |
2187 | char * dll_symname = pe_data_import_dll ? pe_data_import_dll : "unknown"; | |
aa3d9aba | 2188 | |
2fa9fc65 NC |
2189 | b = make_import_fixup_entry (name, fixup_name, dll_symname, output_bfd); |
2190 | add_bfd_to_link (b, b->filename, &link_info); | |
2191 | } | |
2192 | ||
2193 | if (addend != 0) | |
2194 | { | |
2195 | if (link_info.pei386_runtime_pseudo_reloc) | |
2196 | { | |
2197 | if (pe_dll_extra_pe_debug) | |
2198 | printf ("creating runtime pseudo-reloc entry for %s (addend=%d)\n", | |
2199 | fixup_name, addend); | |
2200 | b = make_runtime_pseudo_reloc (name, fixup_name, addend, output_bfd); | |
2201 | add_bfd_to_link (b, b->filename, &link_info); | |
2202 | ||
2203 | if (runtime_pseudo_relocs_created == 0) | |
2204 | { | |
2205 | b = pe_create_runtime_relocator_reference (output_bfd); | |
2206 | add_bfd_to_link (b, b->filename, &link_info); | |
2207 | } | |
2208 | runtime_pseudo_relocs_created++; | |
b34976b6 | 2209 | } |
2fa9fc65 NC |
2210 | else |
2211 | { | |
2212 | einfo (_("%C: variable '%T' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.\n"), | |
2213 | s->owner, s, rel->address, sym->name); | |
2214 | einfo ("%X"); | |
2215 | } | |
2216 | } | |
b044cda1 CW |
2217 | } |
2218 | ||
2219 | ||
252b5132 | 2220 | void |
1579bae1 | 2221 | pe_dll_generate_implib (def_file *def, const char *impfilename) |
252b5132 RH |
2222 | { |
2223 | int i; | |
2224 | bfd *ar_head; | |
2225 | bfd *ar_tail; | |
2226 | bfd *outarch; | |
2227 | bfd *head = 0; | |
2228 | ||
5aaace27 | 2229 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 | 2230 | dll_symname = xstrdup (dll_filename); |
d643799d | 2231 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2232 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2233 | dll_symname[i] = '_'; |
2234 | ||
2235 | unlink (impfilename); | |
2236 | ||
2237 | outarch = bfd_openw (impfilename, 0); | |
2238 | ||
2239 | if (!outarch) | |
2240 | { | |
2241 | /* xgettext:c-format */ | |
2242 | einfo (_("%XCan't open .lib file: %s\n"), impfilename); | |
2243 | return; | |
2244 | } | |
2245 | ||
2246 | /* xgettext:c-format */ | |
2247 | einfo (_("Creating library file: %s\n"), impfilename); | |
5cc18311 | 2248 | |
252b5132 RH |
2249 | bfd_set_format (outarch, bfd_archive); |
2250 | outarch->has_armap = 1; | |
2251 | ||
5cc18311 | 2252 | /* Work out a reasonable size of things to put onto one line. */ |
252b5132 | 2253 | ar_head = make_head (outarch); |
252b5132 | 2254 | |
d643799d | 2255 | for (i = 0; i < def->num_exports; i++) |
252b5132 | 2256 | { |
86b1cc60 | 2257 | /* The import library doesn't know about the internal name. */ |
252b5132 RH |
2258 | char *internal = def->exports[i].internal_name; |
2259 | bfd *n; | |
775cabad | 2260 | |
ee31fbd0 NC |
2261 | /* Don't add PRIVATE entries to import lib. */ |
2262 | if (pe_def_file->exports[i].flag_private) | |
2263 | continue; | |
252b5132 | 2264 | def->exports[i].internal_name = def->exports[i].name; |
d643799d | 2265 | n = make_one (def->exports + i, outarch); |
252b5132 RH |
2266 | n->next = head; |
2267 | head = n; | |
2268 | def->exports[i].internal_name = internal; | |
2269 | } | |
2270 | ||
c6c37250 DD |
2271 | ar_tail = make_tail (outarch); |
2272 | ||
2273 | if (ar_head == NULL || ar_tail == NULL) | |
2274 | return; | |
2275 | ||
86b1cc60 | 2276 | /* Now stick them all into the archive. */ |
252b5132 RH |
2277 | ar_head->next = head; |
2278 | ar_tail->next = ar_head; | |
2279 | head = ar_tail; | |
2280 | ||
2281 | if (! bfd_set_archive_head (outarch, head)) | |
2282 | einfo ("%Xbfd_set_archive_head: %s\n", bfd_errmsg (bfd_get_error ())); | |
5cc18311 | 2283 | |
252b5132 RH |
2284 | if (! bfd_close (outarch)) |
2285 | einfo ("%Xbfd_close %s: %s\n", impfilename, bfd_errmsg (bfd_get_error ())); | |
2286 | ||
2287 | while (head != NULL) | |
2288 | { | |
2289 | bfd *n = head->next; | |
2290 | bfd_close (head); | |
2291 | head = n; | |
2292 | } | |
2293 | } | |
2294 | ||
2295 | static void | |
1579bae1 | 2296 | add_bfd_to_link (bfd *abfd, const char *name, struct bfd_link_info *link_info) |
252b5132 RH |
2297 | { |
2298 | lang_input_statement_type *fake_file; | |
775cabad | 2299 | |
252b5132 RH |
2300 | fake_file = lang_add_input_file (name, |
2301 | lang_input_file_is_fake_enum, | |
2302 | NULL); | |
2303 | fake_file->the_bfd = abfd; | |
2304 | ldlang_add_file (fake_file); | |
775cabad | 2305 | |
252b5132 RH |
2306 | if (!bfd_link_add_symbols (abfd, link_info)) |
2307 | einfo ("%Xaddsym %s: %s\n", name, bfd_errmsg (bfd_get_error ())); | |
2308 | } | |
2309 | ||
2310 | void | |
1579bae1 | 2311 | pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *link_info) |
252b5132 RH |
2312 | { |
2313 | def_file_module *module; | |
775cabad | 2314 | |
d643799d | 2315 | pe_dll_id_target (bfd_get_target (output_bfd)); |
252b5132 RH |
2316 | |
2317 | if (!pe_def_file) | |
2318 | return; | |
2319 | ||
2320 | for (module = pe_def_file->modules; module; module = module->next) | |
2321 | { | |
2322 | int i, do_this_dll; | |
2323 | ||
2324 | dll_filename = module->name; | |
2325 | dll_symname = xstrdup (module->name); | |
d643799d | 2326 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2327 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2328 | dll_symname[i] = '_'; |
2329 | ||
2330 | do_this_dll = 0; | |
2331 | ||
d643799d | 2332 | for (i = 0; i < pe_def_file->num_imports; i++) |
252b5132 RH |
2333 | if (pe_def_file->imports[i].module == module) |
2334 | { | |
2335 | def_file_export exp; | |
2336 | struct bfd_link_hash_entry *blhe; | |
b34976b6 | 2337 | int lead_at = (*pe_def_file->imports[i].internal_name == '@'); |
86b1cc60 | 2338 | /* See if we need this import. */ |
1579bae1 AM |
2339 | size_t len = strlen (pe_def_file->imports[i].internal_name); |
2340 | char *name = xmalloc (len + 2 + 6); | |
c9e38879 NC |
2341 | |
2342 | if (lead_at) | |
1579bae1 AM |
2343 | sprintf (name, "%s%s", "", |
2344 | pe_def_file->imports[i].internal_name); | |
c9e38879 | 2345 | else |
1579bae1 AM |
2346 | sprintf (name, "%s%s",U (""), |
2347 | pe_def_file->imports[i].internal_name); | |
c9e38879 | 2348 | |
252b5132 | 2349 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
b34976b6 | 2350 | FALSE, FALSE, FALSE); |
c9e38879 | 2351 | |
874c8c99 DD |
2352 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) |
2353 | { | |
c9e38879 NC |
2354 | if (lead_at) |
2355 | sprintf (name, "%s%s", U ("_imp_"), | |
2356 | pe_def_file->imports[i].internal_name); | |
2357 | else | |
2358 | sprintf (name, "%s%s", U ("_imp__"), | |
2359 | pe_def_file->imports[i].internal_name); | |
2360 | ||
874c8c99 | 2361 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
b34976b6 | 2362 | FALSE, FALSE, FALSE); |
874c8c99 | 2363 | } |
252b5132 | 2364 | free (name); |
c9e38879 | 2365 | |
252b5132 RH |
2366 | if (blhe && blhe->type == bfd_link_hash_undefined) |
2367 | { | |
2368 | bfd *one; | |
86b1cc60 | 2369 | /* We do. */ |
252b5132 RH |
2370 | if (!do_this_dll) |
2371 | { | |
2372 | bfd *ar_head = make_head (output_bfd); | |
2373 | add_bfd_to_link (ar_head, ar_head->filename, link_info); | |
2374 | do_this_dll = 1; | |
2375 | } | |
2376 | exp.internal_name = pe_def_file->imports[i].internal_name; | |
2377 | exp.name = pe_def_file->imports[i].name; | |
2378 | exp.ordinal = pe_def_file->imports[i].ordinal; | |
2379 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
2380 | exp.flag_private = 0; | |
2381 | exp.flag_constant = 0; | |
939ba9d0 | 2382 | exp.flag_data = pe_def_file->imports[i].data; |
252b5132 RH |
2383 | exp.flag_noname = exp.name ? 0 : 1; |
2384 | one = make_one (&exp, output_bfd); | |
2385 | add_bfd_to_link (one, one->filename, link_info); | |
2386 | } | |
2387 | } | |
2388 | if (do_this_dll) | |
2389 | { | |
2390 | bfd *ar_tail = make_tail (output_bfd); | |
2391 | add_bfd_to_link (ar_tail, ar_tail->filename, link_info); | |
2392 | } | |
2393 | ||
2394 | free (dll_symname); | |
2395 | } | |
2396 | } | |
2397 | ||
775cabad | 2398 | /* We were handed a *.DLL file. Parse it and turn it into a set of |
b34976b6 AM |
2399 | IMPORTS directives in the def file. Return TRUE if the file was |
2400 | handled, FALSE if not. */ | |
252b5132 RH |
2401 | |
2402 | static unsigned int | |
1579bae1 | 2403 | pe_get16 (bfd *abfd, int where) |
252b5132 RH |
2404 | { |
2405 | unsigned char b[2]; | |
775cabad | 2406 | |
db09f25b AM |
2407 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2408 | bfd_bread (b, (bfd_size_type) 2, abfd); | |
d643799d | 2409 | return b[0] + (b[1] << 8); |
252b5132 RH |
2410 | } |
2411 | ||
2412 | static unsigned int | |
1579bae1 | 2413 | pe_get32 (bfd *abfd, int where) |
252b5132 RH |
2414 | { |
2415 | unsigned char b[4]; | |
775cabad | 2416 | |
db09f25b AM |
2417 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2418 | bfd_bread (b, (bfd_size_type) 4, abfd); | |
d643799d | 2419 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2420 | } |
2421 | ||
2422 | #if 0 /* This is not currently used. */ | |
2423 | ||
2424 | static unsigned int | |
1579bae1 | 2425 | pe_as16 (void *ptr) |
252b5132 RH |
2426 | { |
2427 | unsigned char *b = ptr; | |
775cabad | 2428 | |
d643799d | 2429 | return b[0] + (b[1] << 8); |
252b5132 RH |
2430 | } |
2431 | ||
2432 | #endif | |
2433 | ||
2434 | static unsigned int | |
1579bae1 | 2435 | pe_as32 (void *ptr) |
252b5132 RH |
2436 | { |
2437 | unsigned char *b = ptr; | |
775cabad | 2438 | |
d643799d | 2439 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2440 | } |
2441 | ||
b34976b6 | 2442 | bfd_boolean |
1579bae1 | 2443 | pe_implied_import_dll (const char *filename) |
252b5132 RH |
2444 | { |
2445 | bfd *dll; | |
2446 | unsigned long pe_header_offset, opthdr_ofs, num_entries, i; | |
2447 | unsigned long export_rva, export_size, nsections, secptr, expptr; | |
939ba9d0 | 2448 | unsigned long exp_funcbase; |
252b5132 RH |
2449 | unsigned char *expdata, *erva; |
2450 | unsigned long name_rvas, ordinals, nexp, ordbase; | |
1069dd8d | 2451 | const char *dll_name; |
939ba9d0 NC |
2452 | /* Initialization with start > end guarantees that is_data |
2453 | will not be set by mistake, and avoids compiler warning. */ | |
2454 | unsigned long data_start = 1; | |
661a32f7 DS |
2455 | unsigned long data_end = 0; |
2456 | unsigned long rdata_start = 1; | |
2457 | unsigned long rdata_end = 0; | |
2458 | unsigned long bss_start = 1; | |
2459 | unsigned long bss_end = 0; | |
252b5132 RH |
2460 | |
2461 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
5cc18311 | 2462 | the middle of the .rdata section. */ |
c6c37250 | 2463 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
2464 | if (!dll) |
2465 | { | |
2466 | einfo ("%Xopen %s: %s\n", filename, bfd_errmsg (bfd_get_error ())); | |
b34976b6 | 2467 | return FALSE; |
252b5132 | 2468 | } |
775cabad | 2469 | |
86b1cc60 | 2470 | /* PEI dlls seem to be bfd_objects. */ |
252b5132 RH |
2471 | if (!bfd_check_format (dll, bfd_object)) |
2472 | { | |
2473 | einfo ("%X%s: this doesn't appear to be a DLL\n", filename); | |
b34976b6 | 2474 | return FALSE; |
252b5132 RH |
2475 | } |
2476 | ||
939ba9d0 | 2477 | /* Get pe_header, optional header and numbers of export entries. */ |
252b5132 RH |
2478 | pe_header_offset = pe_get32 (dll, 0x3c); |
2479 | opthdr_ofs = pe_header_offset + 4 + 20; | |
2480 | num_entries = pe_get32 (dll, opthdr_ofs + 92); | |
775cabad NC |
2481 | |
2482 | if (num_entries < 1) /* No exports. */ | |
b34976b6 | 2483 | return FALSE; |
775cabad | 2484 | |
252b5132 RH |
2485 | export_rva = pe_get32 (dll, opthdr_ofs + 96); |
2486 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
2487 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); | |
2488 | secptr = (pe_header_offset + 4 + 20 + | |
2489 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
2490 | expptr = 0; | |
775cabad | 2491 | |
1579bae1 | 2492 | /* Get the rva and size of the export section. */ |
d643799d | 2493 | for (i = 0; i < nsections; i++) |
252b5132 RH |
2494 | { |
2495 | char sname[8]; | |
2496 | unsigned long secptr1 = secptr + 40 * i; | |
2497 | unsigned long vaddr = pe_get32 (dll, secptr1 + 12); | |
2498 | unsigned long vsize = pe_get32 (dll, secptr1 + 16); | |
2499 | unsigned long fptr = pe_get32 (dll, secptr1 + 20); | |
775cabad | 2500 | |
db09f25b AM |
2501 | bfd_seek (dll, (file_ptr) secptr1, SEEK_SET); |
2502 | bfd_bread (sname, (bfd_size_type) 8, dll); | |
775cabad | 2503 | |
d643799d | 2504 | if (vaddr <= export_rva && vaddr + vsize > export_rva) |
252b5132 RH |
2505 | { |
2506 | expptr = fptr + (export_rva - vaddr); | |
2507 | if (export_rva + export_size > vaddr + vsize) | |
2508 | export_size = vsize - (export_rva - vaddr); | |
2509 | break; | |
2510 | } | |
2511 | } | |
2512 | ||
939ba9d0 | 2513 | /* Scan sections and store the base and size of the |
1579bae1 | 2514 | data and bss segments in data/base_start/end. */ |
939ba9d0 NC |
2515 | for (i = 0; i < nsections; i++) |
2516 | { | |
2517 | unsigned long secptr1 = secptr + 40 * i; | |
2518 | unsigned long vsize = pe_get32 (dll, secptr1 + 8); | |
2519 | unsigned long vaddr = pe_get32 (dll, secptr1 + 12); | |
2520 | unsigned long flags = pe_get32 (dll, secptr1 + 36); | |
2521 | char sec_name[9]; | |
2522 | ||
2523 | sec_name[8] = '\0'; | |
2524 | bfd_seek (dll, (file_ptr) secptr1 + 0, SEEK_SET); | |
2525 | bfd_bread (sec_name, (bfd_size_type) 8, dll); | |
2526 | ||
2527 | if (strcmp(sec_name,".data") == 0) | |
2528 | { | |
2529 | data_start = vaddr; | |
2530 | data_end = vaddr + vsize; | |
2531 | ||
661a32f7 DS |
2532 | if (pe_dll_extra_pe_debug) |
2533 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
2534 | __FUNCTION__, sec_name, vaddr, vaddr + vsize, flags); | |
2535 | } | |
2536 | else if (strcmp(sec_name,".rdata") == 0) | |
2537 | { | |
2538 | rdata_start = vaddr; | |
2539 | rdata_end = vaddr + vsize; | |
2540 | ||
939ba9d0 NC |
2541 | if (pe_dll_extra_pe_debug) |
2542 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
2543 | __FUNCTION__, sec_name, vaddr, vaddr + vsize, flags); | |
1579bae1 | 2544 | } |
939ba9d0 NC |
2545 | else if (strcmp (sec_name,".bss") == 0) |
2546 | { | |
2547 | bss_start = vaddr; | |
2548 | bss_end = vaddr + vsize; | |
2549 | ||
2550 | if (pe_dll_extra_pe_debug) | |
2551 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
2552 | __FUNCTION__, sec_name, vaddr, vaddr + vsize, flags); | |
2553 | } | |
2554 | } | |
2555 | ||
1579bae1 | 2556 | expdata = xmalloc (export_size); |
db09f25b AM |
2557 | bfd_seek (dll, (file_ptr) expptr, SEEK_SET); |
2558 | bfd_bread (expdata, (bfd_size_type) export_size, dll); | |
252b5132 RH |
2559 | erva = expdata - export_rva; |
2560 | ||
2561 | if (pe_def_file == 0) | |
d643799d | 2562 | pe_def_file = def_file_empty (); |
252b5132 | 2563 | |
d643799d KH |
2564 | nexp = pe_as32 (expdata + 24); |
2565 | name_rvas = pe_as32 (expdata + 32); | |
2566 | ordinals = pe_as32 (expdata + 36); | |
2567 | ordbase = pe_as32 (expdata + 16); | |
939ba9d0 | 2568 | exp_funcbase = pe_as32 (expdata + 28); |
775cabad | 2569 | |
939ba9d0 NC |
2570 | /* Use internal dll name instead of filename |
2571 | to enable symbolic dll linking. */ | |
2572 | dll_name = pe_as32 (expdata + 12) + erva; | |
2573 | ||
a35bc64f NC |
2574 | /* Check to see if the dll has already been added to |
2575 | the definition list and if so return without error. | |
2576 | This avoids multiple symbol definitions. */ | |
2577 | if (def_get_module (pe_def_file, dll_name)) | |
2578 | { | |
2579 | if (pe_dll_extra_pe_debug) | |
2580 | printf ("%s is already loaded\n", dll_name); | |
2581 | return TRUE; | |
2582 | } | |
2583 | ||
939ba9d0 | 2584 | /* Iterate through the list of symbols. */ |
d643799d | 2585 | for (i = 0; i < nexp; i++) |
252b5132 | 2586 | { |
939ba9d0 | 2587 | /* Pointer to the names vector. */ |
d643799d | 2588 | unsigned long name_rva = pe_as32 (erva + name_rvas + i * 4); |
252b5132 | 2589 | def_file_import *imp; |
1579bae1 | 2590 | /* Pointer to the function address vector. */ |
939ba9d0 NC |
2591 | unsigned long func_rva = pe_as32 (erva + exp_funcbase + i * 4); |
2592 | int is_data = 0; | |
2593 | ||
2594 | /* Skip unwanted symbols, which are | |
2595 | exported in buggy auto-import releases. */ | |
2596 | if (strncmp (erva + name_rva, "_nm_", 4) != 0) | |
2597 | { | |
661a32f7 DS |
2598 | /* is_data is true if the address is in the data, rdata or bss |
2599 | segment. */ | |
939ba9d0 NC |
2600 | is_data = |
2601 | (func_rva >= data_start && func_rva < data_end) | |
661a32f7 | 2602 | || (func_rva >= rdata_start && func_rva < rdata_end) |
939ba9d0 NC |
2603 | || (func_rva >= bss_start && func_rva < bss_end); |
2604 | ||
2605 | imp = def_file_add_import (pe_def_file, erva + name_rva, | |
2606 | dll_name, i, 0); | |
396a2467 | 2607 | /* Mark symbol type. */ |
939ba9d0 | 2608 | imp->data = is_data; |
1579bae1 | 2609 | |
939ba9d0 NC |
2610 | if (pe_dll_extra_pe_debug) |
2611 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", | |
2612 | __FUNCTION__, dll_name, erva + name_rva, | |
2613 | func_rva, is_data ? "(data)" : ""); | |
2614 | } | |
252b5132 RH |
2615 | } |
2616 | ||
b34976b6 | 2617 | return TRUE; |
252b5132 RH |
2618 | } |
2619 | ||
775cabad NC |
2620 | /* These are the main functions, called from the emulation. The first |
2621 | is called after the bfds are read, so we can guess at how much space | |
2622 | we need. The second is called after everything is placed, so we | |
2623 | can put the right values in place. */ | |
252b5132 RH |
2624 | |
2625 | void | |
1579bae1 | 2626 | pe_dll_build_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 2627 | { |
c6c37250 | 2628 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
2629 | process_def_file (abfd, info); |
2630 | ||
1579bae1 | 2631 | if (pe_def_file->num_exports == 0 && !info->shared) |
2b817be1 NC |
2632 | return; |
2633 | ||
252b5132 | 2634 | generate_edata (abfd, info); |
c6c37250 DD |
2635 | build_filler_bfd (1); |
2636 | } | |
2637 | ||
2638 | void | |
1579bae1 | 2639 | pe_exe_build_sections (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
c6c37250 DD |
2640 | { |
2641 | pe_dll_id_target (bfd_get_target (abfd)); | |
2642 | build_filler_bfd (0); | |
252b5132 RH |
2643 | } |
2644 | ||
2645 | void | |
1579bae1 | 2646 | pe_dll_fill_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 2647 | { |
c6c37250 | 2648 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
2649 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
2650 | ||
2651 | generate_reloc (abfd, info); | |
2652 | if (reloc_sz > 0) | |
2653 | { | |
2654 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
2655 | ||
2656 | /* Resize the sections. */ | |
2657 | lang_size_sections (stat_ptr->head, abs_output_section, | |
1579bae1 | 2658 | &stat_ptr->head, 0, 0, NULL, TRUE); |
252b5132 RH |
2659 | |
2660 | /* Redo special stuff. */ | |
2661 | ldemul_after_allocation (); | |
2662 | ||
2663 | /* Do the assignments again. */ | |
1579bae1 | 2664 | lang_do_assignments (stat_ptr->head, abs_output_section, NULL, 0); |
252b5132 RH |
2665 | } |
2666 | ||
2667 | fill_edata (abfd, info); | |
2668 | ||
2b817be1 NC |
2669 | if (info->shared) |
2670 | pe_data (abfd)->dll = 1; | |
252b5132 RH |
2671 | |
2672 | edata_s->contents = edata_d; | |
2673 | reloc_s->contents = reloc_d; | |
2674 | } | |
c6c37250 DD |
2675 | |
2676 | void | |
1579bae1 | 2677 | pe_exe_fill_sections (bfd *abfd, struct bfd_link_info *info) |
c6c37250 DD |
2678 | { |
2679 | pe_dll_id_target (bfd_get_target (abfd)); | |
2680 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; | |
2681 | ||
2682 | generate_reloc (abfd, info); | |
2683 | if (reloc_sz > 0) | |
2684 | { | |
2685 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
2686 | ||
2687 | /* Resize the sections. */ | |
2688 | lang_size_sections (stat_ptr->head, abs_output_section, | |
1579bae1 | 2689 | &stat_ptr->head, 0, 0, NULL, TRUE); |
c6c37250 DD |
2690 | |
2691 | /* Redo special stuff. */ | |
2692 | ldemul_after_allocation (); | |
2693 | ||
2694 | /* Do the assignments again. */ | |
1579bae1 | 2695 | lang_do_assignments (stat_ptr->head, abs_output_section, NULL, 0); |
c6c37250 DD |
2696 | } |
2697 | reloc_s->contents = reloc_d; | |
2698 | } |