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