Commit | Line | Data |
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252b5132 | 1 | /* Routines to help build PEI-format DLLs (Win32 etc) |
53baae48 | 2 | Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
4d8907ac | 3 | Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by DJ Delorie <dj@cygnus.com> |
5 | ||
6 | This file is part of GLD, the Gnu Linker. | |
7 | ||
8 | GLD is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GLD is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GLD; see the file COPYING. If not, write to the Free | |
75be928b NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
252b5132 RH |
22 | |
23 | #include "bfd.h" | |
24 | #include "sysdep.h" | |
25 | #include "bfdlink.h" | |
26 | #include "libiberty.h" | |
3882b010 | 27 | #include "safe-ctype.h" |
252b5132 RH |
28 | |
29 | #include <time.h> | |
252b5132 RH |
30 | |
31 | #include "ld.h" | |
32 | #include "ldexp.h" | |
33 | #include "ldlang.h" | |
34 | #include "ldwrite.h" | |
35 | #include "ldmisc.h" | |
df2a7313 | 36 | #include <ldgram.h> |
252b5132 | 37 | #include "ldmain.h" |
b71e2778 | 38 | #include "ldfile.h" |
252b5132 RH |
39 | #include "ldemul.h" |
40 | #include "coff/internal.h" | |
41 | #include "../bfd/libcoff.h" | |
42 | #include "deffile.h" | |
99ad8390 NC |
43 | |
44 | #ifdef pe_use_x86_64 | |
45 | ||
46 | #define PE_IDATA4_SIZE 8 | |
47 | #define PE_IDATA5_SIZE 8 | |
48 | #include "pep-dll.h" | |
49 | #undef AOUTSZ | |
50 | #define AOUTSZ PEPAOUTSZ | |
51 | #define PEAOUTHDR PEPAOUTHDR | |
52 | ||
53 | #else | |
54 | ||
1069dd8d | 55 | #include "pe-dll.h" |
252b5132 | 56 | |
99ad8390 NC |
57 | #endif |
58 | ||
59 | #ifndef PE_IDATA4_SIZE | |
60 | #define PE_IDATA4_SIZE 4 | |
61 | #endif | |
62 | ||
63 | #ifndef PE_IDATA5_SIZE | |
64 | #define PE_IDATA5_SIZE 4 | |
65 | #endif | |
66 | ||
775cabad NC |
67 | /* This file turns a regular Windows PE image into a DLL. Because of |
68 | the complexity of this operation, it has been broken down into a | |
69 | number of separate modules which are all called by the main function | |
70 | at the end of this file. This function is not re-entrant and is | |
71 | normally only called once, so static variables are used to reduce | |
72 | the number of parameters and return values required. | |
b7a26f91 | 73 | |
99ad8390 | 74 | See also: ld/emultempl/pe.em and ld/emultempl/pep.em. */ |
775cabad NC |
75 | |
76 | /* Auto-import feature by Paul Sokolovsky | |
77 | ||
78 | Quick facts: | |
79 | ||
80 | 1. With this feature on, DLL clients can import variables from DLL | |
81 | without any concern from their side (for example, without any source | |
82 | code modifications). | |
83 | ||
84 | 2. This is done completely in bounds of the PE specification (to be fair, | |
396a2467 | 85 | there's a place where it pokes nose out of, but in practice it works). |
775cabad NC |
86 | So, resulting module can be used with any other PE compiler/linker. |
87 | ||
88 | 3. Auto-import is fully compatible with standard import method and they | |
89 | can be mixed together. | |
90 | ||
91 | 4. Overheads: space: 8 bytes per imported symbol, plus 20 for each | |
92 | reference to it; load time: negligible; virtual/physical memory: should be | |
93 | less than effect of DLL relocation, and I sincerely hope it doesn't affect | |
94 | DLL sharability (too much). | |
95 | ||
96 | Idea | |
97 | ||
98 | The obvious and only way to get rid of dllimport insanity is to make client | |
99 | access variable directly in the DLL, bypassing extra dereference. I.e., | |
396a2467 | 100 | whenever client contains something like |
775cabad NC |
101 | |
102 | mov dll_var,%eax, | |
103 | ||
104 | address of dll_var in the command should be relocated to point into loaded | |
105 | DLL. The aim is to make OS loader do so, and than make ld help with that. | |
106 | Import section of PE made following way: there's a vector of structures | |
107 | each describing imports from particular DLL. Each such structure points | |
396a2467 | 108 | to two other parallel vectors: one holding imported names, and one which |
775cabad NC |
109 | will hold address of corresponding imported name. So, the solution is |
110 | de-vectorize these structures, making import locations be sparse and | |
111 | pointing directly into code. Before continuing, it is worth a note that, | |
112 | while authors strives to make PE act ELF-like, there're some other people | |
113 | make ELF act PE-like: elfvector, ;-) . | |
114 | ||
115 | Implementation | |
116 | ||
117 | For each reference of data symbol to be imported from DLL (to set of which | |
118 | belong symbols with name <sym>, if __imp_<sym> is found in implib), the | |
119 | import fixup entry is generated. That entry is of type | |
53baae48 | 120 | IMAGE_IMPORT_DESCRIPTOR and stored in .idata$2 subsection. Each |
775cabad NC |
121 | fixup entry contains pointer to symbol's address within .text section |
122 | (marked with __fuN_<sym> symbol, where N is integer), pointer to DLL name | |
123 | (so, DLL name is referenced by multiple entries), and pointer to symbol | |
124 | name thunk. Symbol name thunk is singleton vector (__nm_th_<symbol>) | |
125 | pointing to IMAGE_IMPORT_BY_NAME structure (__nm_<symbol>) directly | |
126 | containing imported name. Here comes that "om the edge" problem mentioned | |
127 | above: PE specification rambles that name vector (OriginalFirstThunk) | |
128 | should run in parallel with addresses vector (FirstThunk), i.e. that they | |
129 | should have same number of elements and terminated with zero. We violate | |
396a2467 | 130 | this, since FirstThunk points directly into machine code. But in practice, |
775cabad NC |
131 | OS loader implemented the sane way: it goes thru OriginalFirstThunk and |
132 | puts addresses to FirstThunk, not something else. It once again should be | |
133 | noted that dll and symbol name structures are reused across fixup entries | |
134 | and should be there anyway to support standard import stuff, so sustained | |
135 | overhead is 20 bytes per reference. Other question is whether having several | |
136 | IMAGE_IMPORT_DESCRIPTORS for the same DLL is possible. Answer is yes, it is | |
137 | done even by native compiler/linker (libth32's functions are in fact reside | |
138 | in windows9x kernel32.dll, so if you use it, you have two | |
139 | IMAGE_IMPORT_DESCRIPTORS for kernel32.dll). Yet other question is whether | |
140 | referencing the same PE structures several times is valid. The answer is why | |
396a2467 | 141 | not, prohibiting that (detecting violation) would require more work on |
775cabad NC |
142 | behalf of loader than not doing it. |
143 | ||
99ad8390 | 144 | See also: ld/emultempl/pe.em and ld/emultempl/pep.em. */ |
b044cda1 | 145 | |
1579bae1 | 146 | static void add_bfd_to_link (bfd *, const char *, struct bfd_link_info *); |
b044cda1 | 147 | |
775cabad | 148 | /* For emultempl/pe.em. */ |
252b5132 | 149 | |
775cabad | 150 | def_file * pe_def_file = 0; |
252b5132 RH |
151 | int pe_dll_export_everything = 0; |
152 | int pe_dll_do_default_excludes = 1; | |
153 | int pe_dll_kill_ats = 0; | |
154 | int pe_dll_stdcall_aliases = 0; | |
870df5dc NC |
155 | int pe_dll_warn_dup_exports = 0; |
156 | int pe_dll_compat_implib = 0; | |
b044cda1 | 157 | int pe_dll_extra_pe_debug = 0; |
252b5132 | 158 | |
775cabad | 159 | /* Static variables and types. */ |
252b5132 RH |
160 | |
161 | static bfd_vma image_base; | |
252b5132 | 162 | static bfd *filler_bfd; |
198beae2 | 163 | static struct bfd_section *edata_s, *reloc_s; |
252b5132 | 164 | static unsigned char *edata_d, *reloc_d; |
1069dd8d | 165 | static size_t edata_sz, reloc_sz; |
2fa9fc65 | 166 | static int runtime_pseudo_relocs_created = 0; |
252b5132 | 167 | |
775cabad | 168 | typedef struct |
5b8273bf NC |
169 | { |
170 | char *name; | |
171 | int len; | |
172 | } | |
173 | autofilter_entry_type; | |
775cabad NC |
174 | |
175 | typedef struct | |
5b8273bf NC |
176 | { |
177 | char *target_name; | |
178 | char *object_target; | |
179 | unsigned int imagebase_reloc; | |
180 | int pe_arch; | |
181 | int bfd_arch; | |
182 | bfd_boolean underscored; | |
183 | autofilter_entry_type* autofilter_symbollist; | |
184 | } | |
185 | pe_details_type; | |
186 | ||
187 | static autofilter_entry_type autofilter_symbollist_generic[] = | |
188 | { | |
0112cd26 | 189 | { STRING_COMMA_LEN (".text") }, |
5b8273bf | 190 | /* Entry point symbols. */ |
0112cd26 NC |
191 | { STRING_COMMA_LEN ("DllMain") }, |
192 | { STRING_COMMA_LEN ("DllMainCRTStartup") }, | |
193 | { STRING_COMMA_LEN ("_DllMainCRTStartup") }, | |
5b8273bf | 194 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
195 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
196 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
197 | { STRING_COMMA_LEN (NULL) } | |
5b8273bf NC |
198 | }; |
199 | ||
200 | static autofilter_entry_type autofilter_symbollist_i386[] = | |
201 | { | |
0112cd26 | 202 | { STRING_COMMA_LEN (".text") }, |
5b8273bf | 203 | /* Entry point symbols, and entry hooks. */ |
0112cd26 NC |
204 | { STRING_COMMA_LEN ("cygwin_crt0") }, |
205 | { STRING_COMMA_LEN ("DllMain@12") }, | |
206 | { STRING_COMMA_LEN ("DllEntryPoint@0") }, | |
207 | { STRING_COMMA_LEN ("DllMainCRTStartup@12") }, | |
208 | { STRING_COMMA_LEN ("_cygwin_dll_entry@12") }, | |
209 | { STRING_COMMA_LEN ("_cygwin_crt0_common@8") }, | |
210 | { STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry@12") }, | |
211 | { STRING_COMMA_LEN ("cygwin_attach_dll") }, | |
212 | { STRING_COMMA_LEN ("cygwin_premain0") }, | |
213 | { STRING_COMMA_LEN ("cygwin_premain1") }, | |
214 | { STRING_COMMA_LEN ("cygwin_premain2") }, | |
215 | { STRING_COMMA_LEN ("cygwin_premain3") }, | |
5b8273bf | 216 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
217 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
218 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
5b8273bf | 219 | /* Global vars that should not be exported. */ |
0112cd26 NC |
220 | { STRING_COMMA_LEN ("impure_ptr") }, |
221 | { STRING_COMMA_LEN ("_impure_ptr") }, | |
222 | { STRING_COMMA_LEN ("_fmode") }, | |
223 | { STRING_COMMA_LEN ("environ") }, | |
224 | { STRING_COMMA_LEN (NULL) } | |
5b8273bf | 225 | }; |
b044cda1 | 226 | |
5b8273bf NC |
227 | #define PE_ARCH_i386 1 |
228 | #define PE_ARCH_sh 2 | |
229 | #define PE_ARCH_mips 3 | |
230 | #define PE_ARCH_arm 4 | |
775cabad | 231 | #define PE_ARCH_arm_epoc 5 |
7148cc28 | 232 | #define PE_ARCH_arm_wince 6 |
c6c37250 | 233 | |
775cabad NC |
234 | static pe_details_type pe_detail_list[] = |
235 | { | |
c6c37250 | 236 | { |
99ad8390 NC |
237 | #ifdef pe_use_x86_64 |
238 | "pei-x86-64", | |
239 | "pe-x86-64", | |
240 | 3 /* R_IMAGEBASE */, | |
241 | #else | |
c6c37250 DD |
242 | "pei-i386", |
243 | "pe-i386", | |
244 | 7 /* R_IMAGEBASE */, | |
99ad8390 | 245 | #endif |
c6c37250 DD |
246 | PE_ARCH_i386, |
247 | bfd_arch_i386, | |
5b8273bf NC |
248 | TRUE, |
249 | autofilter_symbollist_i386 | |
c6c37250 | 250 | }, |
344a211f NC |
251 | { |
252 | "pei-shl", | |
253 | "pe-shl", | |
254 | 16 /* R_SH_IMAGEBASE */, | |
255 | PE_ARCH_sh, | |
256 | bfd_arch_sh, | |
5b8273bf NC |
257 | TRUE, |
258 | autofilter_symbollist_generic | |
344a211f NC |
259 | }, |
260 | { | |
261 | "pei-mips", | |
262 | "pe-mips", | |
263 | 34 /* MIPS_R_RVA */, | |
264 | PE_ARCH_mips, | |
265 | bfd_arch_mips, | |
5b8273bf NC |
266 | FALSE, |
267 | autofilter_symbollist_generic | |
344a211f NC |
268 | }, |
269 | { | |
270 | "pei-arm-little", | |
271 | "pe-arm-little", | |
272 | 11 /* ARM_RVA32 */, | |
273 | PE_ARCH_arm, | |
274 | bfd_arch_arm, | |
5b8273bf NC |
275 | TRUE, |
276 | autofilter_symbollist_generic | |
344a211f | 277 | }, |
775cabad NC |
278 | { |
279 | "epoc-pei-arm-little", | |
280 | "epoc-pe-arm-little", | |
281 | 11 /* ARM_RVA32 */, | |
282 | PE_ARCH_arm_epoc, | |
283 | bfd_arch_arm, | |
5b8273bf NC |
284 | FALSE, |
285 | autofilter_symbollist_generic | |
775cabad | 286 | }, |
7148cc28 NC |
287 | { |
288 | "pei-arm-wince-little", | |
289 | "pe-arm-wince-little", | |
290 | 2, /* ARM_RVA32 on Windows CE, see bfd/coff-arm.c. */ | |
291 | PE_ARCH_arm_wince, | |
292 | bfd_arch_arm, | |
293 | FALSE, | |
294 | autofilter_symbollist_generic | |
295 | }, | |
5b8273bf | 296 | { NULL, NULL, 0, 0, 0, FALSE, NULL } |
c6c37250 DD |
297 | }; |
298 | ||
299 | static pe_details_type *pe_details; | |
300 | ||
775cabad NC |
301 | /* Do not specify library suffix explicitly, to allow for dllized versions. */ |
302 | static autofilter_entry_type autofilter_liblist[] = | |
303 | { | |
0112cd26 NC |
304 | { STRING_COMMA_LEN ("libcegcc") }, |
305 | { STRING_COMMA_LEN ("libcygwin") }, | |
306 | { STRING_COMMA_LEN ("libgcc") }, | |
307 | { STRING_COMMA_LEN ("libstdc++") }, | |
308 | { STRING_COMMA_LEN ("libmingw32") }, | |
309 | { STRING_COMMA_LEN ("libmingwex") }, | |
310 | { STRING_COMMA_LEN ("libg2c") }, | |
311 | { STRING_COMMA_LEN ("libsupc++") }, | |
312 | { STRING_COMMA_LEN ("libobjc") }, | |
313 | { STRING_COMMA_LEN ("libgcj") }, | |
314 | { STRING_COMMA_LEN (NULL) } | |
b044cda1 | 315 | }; |
775cabad NC |
316 | |
317 | static autofilter_entry_type autofilter_objlist[] = | |
318 | { | |
0112cd26 NC |
319 | { STRING_COMMA_LEN ("crt0.o") }, |
320 | { STRING_COMMA_LEN ("crt1.o") }, | |
321 | { STRING_COMMA_LEN ("crt2.o") }, | |
322 | { STRING_COMMA_LEN ("dllcrt1.o") }, | |
323 | { STRING_COMMA_LEN ("dllcrt2.o") }, | |
324 | { STRING_COMMA_LEN ("gcrt0.o") }, | |
325 | { STRING_COMMA_LEN ("gcrt1.o") }, | |
326 | { STRING_COMMA_LEN ("gcrt2.o") }, | |
327 | { STRING_COMMA_LEN ("crtbegin.o") }, | |
328 | { STRING_COMMA_LEN ("crtend.o") }, | |
329 | { STRING_COMMA_LEN (NULL) } | |
b044cda1 | 330 | }; |
775cabad NC |
331 | |
332 | static autofilter_entry_type autofilter_symbolprefixlist[] = | |
333 | { | |
0112cd26 | 334 | { STRING_COMMA_LEN ("__imp_") }, |
775cabad | 335 | /* Do __imp_ explicitly to save time. */ |
0112cd26 | 336 | { STRING_COMMA_LEN ("__rtti_") }, |
39cebe23 | 337 | /* Don't re-export auto-imported symbols. */ |
0112cd26 NC |
338 | { STRING_COMMA_LEN ("_nm_") }, |
339 | { STRING_COMMA_LEN ("__builtin_") }, | |
775cabad | 340 | /* Don't export symbols specifying internal DLL layout. */ |
0112cd26 NC |
341 | { STRING_COMMA_LEN ("_head_") }, |
342 | { STRING_COMMA_LEN (NULL) } | |
b044cda1 | 343 | }; |
775cabad NC |
344 | |
345 | static autofilter_entry_type autofilter_symbolsuffixlist[] = | |
346 | { | |
0112cd26 NC |
347 | { STRING_COMMA_LEN ("_iname") }, |
348 | { STRING_COMMA_LEN (NULL) } | |
b044cda1 CW |
349 | }; |
350 | ||
c6c37250 DD |
351 | #define U(str) (pe_details->underscored ? "_" str : str) |
352 | ||
353 | void | |
1579bae1 | 354 | pe_dll_id_target (const char *target) |
c6c37250 DD |
355 | { |
356 | int i; | |
775cabad | 357 | |
d643799d | 358 | for (i = 0; pe_detail_list[i].target_name; i++) |
9d68bc82 DD |
359 | if (strcmp (pe_detail_list[i].target_name, target) == 0 |
360 | || strcmp (pe_detail_list[i].object_target, target) == 0) | |
c6c37250 | 361 | { |
d643799d | 362 | pe_details = pe_detail_list + i; |
c6c37250 DD |
363 | return; |
364 | } | |
365 | einfo (_("%XUnsupported PEI architecture: %s\n"), target); | |
366 | exit (1); | |
367 | } | |
368 | ||
b7a26f91 | 369 | /* Helper functions for qsort. Relocs must be sorted so that we can write |
775cabad | 370 | them out by pages. */ |
252b5132 | 371 | |
775cabad NC |
372 | typedef struct |
373 | { | |
374 | bfd_vma vma; | |
375 | char type; | |
376 | short extra; | |
377 | } | |
378 | reloc_data_type; | |
c6c37250 | 379 | |
252b5132 | 380 | static int |
1579bae1 | 381 | reloc_sort (const void *va, const void *vb) |
252b5132 | 382 | { |
1579bae1 AM |
383 | bfd_vma a = ((const reloc_data_type *) va)->vma; |
384 | bfd_vma b = ((const reloc_data_type *) vb)->vma; | |
775cabad | 385 | |
c6c37250 | 386 | return (a > b) ? 1 : ((a < b) ? -1 : 0); |
252b5132 RH |
387 | } |
388 | ||
389 | static int | |
1579bae1 | 390 | pe_export_sort (const void *va, const void *vb) |
252b5132 | 391 | { |
1579bae1 AM |
392 | const def_file_export *a = va; |
393 | const def_file_export *b = vb; | |
775cabad | 394 | |
252b5132 RH |
395 | return strcmp (a->name, b->name); |
396 | } | |
397 | ||
775cabad | 398 | /* Read and process the .DEF file. */ |
252b5132 RH |
399 | |
400 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
401 | exported_symbol_sections[i] to tag whether or not the symbol was | |
5cc18311 | 402 | defined, since we can't export symbols we don't have. */ |
252b5132 RH |
403 | |
404 | static bfd_vma *exported_symbol_offsets; | |
198beae2 | 405 | static struct bfd_section **exported_symbol_sections; |
252b5132 RH |
406 | static int export_table_size; |
407 | static int count_exported; | |
408 | static int count_exported_byname; | |
409 | static int count_with_ordinals; | |
410 | static const char *dll_name; | |
411 | static int min_ordinal, max_ordinal; | |
412 | static int *exported_symbols; | |
413 | ||
775cabad NC |
414 | typedef struct exclude_list_struct |
415 | { | |
416 | char *string; | |
417 | struct exclude_list_struct *next; | |
658957db | 418 | int type; |
775cabad NC |
419 | } |
420 | exclude_list_struct; | |
86b1cc60 | 421 | |
252b5132 RH |
422 | static struct exclude_list_struct *excludes = 0; |
423 | ||
424 | void | |
1579bae1 | 425 | pe_dll_add_excludes (const char *new_excludes, const int type) |
252b5132 RH |
426 | { |
427 | char *local_copy; | |
428 | char *exclude_string; | |
429 | ||
430 | local_copy = xstrdup (new_excludes); | |
431 | ||
432 | exclude_string = strtok (local_copy, ",:"); | |
433 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
434 | { | |
435 | struct exclude_list_struct *new_exclude; | |
436 | ||
1579bae1 AM |
437 | new_exclude = xmalloc (sizeof (struct exclude_list_struct)); |
438 | new_exclude->string = xmalloc (strlen (exclude_string) + 1); | |
252b5132 | 439 | strcpy (new_exclude->string, exclude_string); |
70b0be79 | 440 | new_exclude->type = type; |
252b5132 RH |
441 | new_exclude->next = excludes; |
442 | excludes = new_exclude; | |
443 | } | |
444 | ||
445 | free (local_copy); | |
446 | } | |
447 | ||
70b0be79 | 448 | |
775cabad NC |
449 | /* abfd is a bfd containing n (or NULL) |
450 | It can be used for contextual checks. */ | |
451 | ||
252b5132 | 452 | static int |
1579bae1 | 453 | auto_export (bfd *abfd, def_file *d, const char *n) |
252b5132 RH |
454 | { |
455 | int i; | |
456 | struct exclude_list_struct *ex; | |
b044cda1 | 457 | autofilter_entry_type *afptr; |
70b0be79 CF |
458 | const char * libname = 0; |
459 | if (abfd && abfd->my_archive) | |
460 | libname = lbasename (abfd->my_archive->filename); | |
b044cda1 | 461 | |
775cabad | 462 | /* We should not re-export imported stuff. */ |
0112cd26 | 463 | if (CONST_STRNEQ (n, "_imp_")) |
b044cda1 CW |
464 | return 0; |
465 | ||
252b5132 RH |
466 | for (i = 0; i < d->num_exports; i++) |
467 | if (strcmp (d->exports[i].name, n) == 0) | |
468 | return 0; | |
775cabad | 469 | |
252b5132 RH |
470 | if (pe_dll_do_default_excludes) |
471 | { | |
663dd378 | 472 | const char * p; |
775cabad NC |
473 | int len; |
474 | ||
b044cda1 | 475 | if (pe_dll_extra_pe_debug) |
775cabad NC |
476 | printf ("considering exporting: %s, abfd=%p, abfd->my_arc=%p\n", |
477 | n, abfd, abfd->my_archive); | |
b044cda1 CW |
478 | |
479 | /* First of all, make context checks: | |
1579bae1 | 480 | Don't export anything from standard libs. */ |
658957db | 481 | if (libname) |
b044cda1 CW |
482 | { |
483 | afptr = autofilter_liblist; | |
775cabad | 484 | |
b044cda1 CW |
485 | while (afptr->name) |
486 | { | |
70b0be79 | 487 | if (strncmp (libname, afptr->name, afptr->len) == 0 ) |
b044cda1 CW |
488 | return 0; |
489 | afptr++; | |
490 | } | |
491 | } | |
492 | ||
775cabad | 493 | /* Next, exclude symbols from certain startup objects. */ |
775cabad | 494 | |
59d28a94 | 495 | if (abfd && (p = lbasename (abfd->filename))) |
663dd378 | 496 | { |
b7a26f91 KH |
497 | afptr = autofilter_objlist; |
498 | while (afptr->name) | |
59d28a94 | 499 | { |
b7a26f91 KH |
500 | if (strcmp (p, afptr->name) == 0) |
501 | return 0; | |
59d28a94 | 502 | afptr++; |
663dd378 | 503 | } |
775cabad | 504 | } |
b044cda1 CW |
505 | |
506 | /* Don't try to blindly exclude all symbols | |
507 | that begin with '__'; this was tried and | |
5b8273bf NC |
508 | it is too restrictive. Instead we have |
509 | a target specific list to use: */ | |
510 | afptr = pe_details->autofilter_symbollist; | |
99ad8390 | 511 | |
b044cda1 CW |
512 | while (afptr->name) |
513 | { | |
514 | if (strcmp (n, afptr->name) == 0) | |
515 | return 0; | |
775cabad | 516 | |
b7a26f91 | 517 | afptr++; |
b044cda1 CW |
518 | } |
519 | ||
775cabad | 520 | /* Next, exclude symbols starting with ... */ |
b044cda1 CW |
521 | afptr = autofilter_symbolprefixlist; |
522 | while (afptr->name) | |
523 | { | |
524 | if (strncmp (n, afptr->name, afptr->len) == 0) | |
525 | return 0; | |
775cabad | 526 | |
b7a26f91 | 527 | afptr++; |
b044cda1 CW |
528 | } |
529 | ||
775cabad NC |
530 | /* Finally, exclude symbols ending with ... */ |
531 | len = strlen (n); | |
532 | afptr = autofilter_symbolsuffixlist; | |
533 | while (afptr->name) | |
534 | { | |
b7a26f91 | 535 | if ((len >= afptr->len) |
775cabad | 536 | /* Add 1 to insure match with trailing '\0'. */ |
b7a26f91 KH |
537 | && strncmp (n + len - afptr->len, afptr->name, |
538 | afptr->len + 1) == 0) | |
775cabad NC |
539 | return 0; |
540 | ||
b7a26f91 | 541 | afptr++; |
775cabad | 542 | } |
252b5132 | 543 | } |
775cabad | 544 | |
252b5132 | 545 | for (ex = excludes; ex; ex = ex->next) |
70b0be79 CF |
546 | { |
547 | if (ex->type == 1) /* exclude-libs */ | |
548 | { | |
549 | if (libname | |
550 | && ((strcmp (libname, ex->string) == 0) | |
551 | || (strcasecmp ("ALL", ex->string) == 0))) | |
552 | return 0; | |
553 | } | |
554 | else if (strcmp (n, ex->string) == 0) | |
658957db | 555 | return 0; |
70b0be79 | 556 | } |
775cabad | 557 | |
252b5132 RH |
558 | return 1; |
559 | } | |
560 | ||
561 | static void | |
1579bae1 | 562 | process_def_file (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
252b5132 RH |
563 | { |
564 | int i, j; | |
565 | struct bfd_link_hash_entry *blhe; | |
566 | bfd *b; | |
198beae2 | 567 | struct bfd_section *s; |
d643799d | 568 | def_file_export *e = 0; |
252b5132 RH |
569 | |
570 | if (!pe_def_file) | |
571 | pe_def_file = def_file_empty (); | |
572 | ||
573 | /* First, run around to all the objects looking for the .drectve | |
86b1cc60 | 574 | sections, and push those into the def file too. */ |
252b5132 RH |
575 | for (b = info->input_bfds; b; b = b->link_next) |
576 | { | |
577 | s = bfd_get_section_by_name (b, ".drectve"); | |
578 | if (s) | |
579 | { | |
eea6121a | 580 | long size = s->size; |
252b5132 | 581 | char *buf = xmalloc (size); |
775cabad | 582 | |
252b5132 RH |
583 | bfd_get_section_contents (b, s, buf, 0, size); |
584 | def_file_add_directive (pe_def_file, buf, size); | |
585 | free (buf); | |
586 | } | |
587 | } | |
588 | ||
2b817be1 NC |
589 | /* If we are not building a DLL, when there are no exports |
590 | we do not build an export table at all. */ | |
591 | if (!pe_dll_export_everything && pe_def_file->num_exports == 0 | |
7b0eaa22 | 592 | && info->executable) |
2b817be1 NC |
593 | return; |
594 | ||
86b1cc60 | 595 | /* Now, maybe export everything else the default way. */ |
252b5132 RH |
596 | if (pe_dll_export_everything || pe_def_file->num_exports == 0) |
597 | { | |
598 | for (b = info->input_bfds; b; b = b->link_next) | |
599 | { | |
600 | asymbol **symbols; | |
601 | int nsyms, symsize; | |
602 | ||
603 | symsize = bfd_get_symtab_upper_bound (b); | |
1579bae1 | 604 | symbols = xmalloc (symsize); |
252b5132 RH |
605 | nsyms = bfd_canonicalize_symtab (b, symbols); |
606 | ||
607 | for (j = 0; j < nsyms; j++) | |
608 | { | |
d643799d | 609 | /* We should export symbols which are either global or not |
1579bae1 AM |
610 | anything at all. (.bss data is the latter) |
611 | We should not export undefined symbols. */ | |
b044cda1 CW |
612 | if (symbols[j]->section != &bfd_und_section |
613 | && ((symbols[j]->flags & BSF_GLOBAL) | |
614 | || (symbols[j]->flags == BFD_FORT_COMM_DEFAULT_VALUE))) | |
252b5132 RH |
615 | { |
616 | const char *sn = symbols[j]->name; | |
b044cda1 | 617 | |
775cabad | 618 | /* We should not re-export imported stuff. */ |
b044cda1 | 619 | { |
1579bae1 | 620 | char *name = xmalloc (strlen (sn) + 2 + 6); |
b044cda1 | 621 | sprintf (name, "%s%s", U("_imp_"), sn); |
775cabad | 622 | |
b044cda1 | 623 | blhe = bfd_link_hash_lookup (info->hash, name, |
b34976b6 | 624 | FALSE, FALSE, FALSE); |
b044cda1 CW |
625 | free (name); |
626 | ||
b7a26f91 | 627 | if (blhe && blhe->type == bfd_link_hash_defined) |
b044cda1 CW |
628 | continue; |
629 | } | |
630 | ||
252b5132 RH |
631 | if (*sn == '_') |
632 | sn++; | |
775cabad | 633 | |
b044cda1 CW |
634 | if (auto_export (b, pe_def_file, sn)) |
635 | { | |
636 | def_file_export *p; | |
637 | p=def_file_add_export (pe_def_file, sn, 0, -1); | |
775cabad | 638 | /* Fill data flag properly, from dlltool.c. */ |
b044cda1 CW |
639 | p->flag_data = !(symbols[j]->flags & BSF_FUNCTION); |
640 | } | |
252b5132 RH |
641 | } |
642 | } | |
643 | } | |
644 | } | |
645 | ||
646 | #undef NE | |
647 | #define NE pe_def_file->num_exports | |
648 | ||
86b1cc60 | 649 | /* Canonicalize the export list. */ |
252b5132 RH |
650 | if (pe_dll_kill_ats) |
651 | { | |
652 | for (i = 0; i < NE; i++) | |
653 | { | |
654 | if (strchr (pe_def_file->exports[i].name, '@')) | |
655 | { | |
86b1cc60 | 656 | /* This will preserve internal_name, which may have been |
1579bae1 AM |
657 | pointing to the same memory as name, or might not |
658 | have. */ | |
659 | int lead_at = (*pe_def_file->exports[i].name == '@'); | |
c9e38879 | 660 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
a8d701fd | 661 | char *tmp_at = strchr (tmp, '@'); |
775cabad | 662 | |
a8d701fd DS |
663 | if (tmp_at) |
664 | *tmp_at = 0; | |
665 | else | |
666 | einfo (_("%XCannot export %s: invalid export name\n"), | |
667 | pe_def_file->exports[i].name); | |
252b5132 RH |
668 | pe_def_file->exports[i].name = tmp; |
669 | } | |
670 | } | |
671 | } | |
672 | ||
673 | if (pe_dll_stdcall_aliases) | |
674 | { | |
675 | for (i = 0; i < NE; i++) | |
676 | { | |
677 | if (strchr (pe_def_file->exports[i].name, '@')) | |
678 | { | |
1579bae1 | 679 | int lead_at = (*pe_def_file->exports[i].name == '@'); |
c9e38879 | 680 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
775cabad | 681 | |
252b5132 | 682 | *(strchr (tmp, '@')) = 0; |
b044cda1 | 683 | if (auto_export (NULL, pe_def_file, tmp)) |
252b5132 | 684 | def_file_add_export (pe_def_file, tmp, |
b044cda1 CW |
685 | pe_def_file->exports[i].internal_name, |
686 | -1); | |
252b5132 RH |
687 | else |
688 | free (tmp); | |
689 | } | |
690 | } | |
691 | } | |
692 | ||
86b1cc60 KH |
693 | /* Convenience, but watch out for it changing. */ |
694 | e = pe_def_file->exports; | |
252b5132 | 695 | |
1579bae1 | 696 | exported_symbol_offsets = xmalloc (NE * sizeof (bfd_vma)); |
198beae2 | 697 | exported_symbol_sections = xmalloc (NE * sizeof (struct bfd_section *)); |
252b5132 | 698 | |
198beae2 | 699 | memset (exported_symbol_sections, 0, NE * sizeof (struct bfd_section *)); |
252b5132 RH |
700 | max_ordinal = 0; |
701 | min_ordinal = 65536; | |
702 | count_exported = 0; | |
703 | count_exported_byname = 0; | |
704 | count_with_ordinals = 0; | |
705 | ||
1579bae1 AM |
706 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), |
707 | pe_export_sort); | |
252b5132 RH |
708 | for (i = 0, j = 0; i < NE; i++) |
709 | { | |
710 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
711 | { | |
870df5dc | 712 | /* This is a duplicate. */ |
252b5132 RH |
713 | if (e[j - 1].ordinal != -1 |
714 | && e[i].ordinal != -1 | |
715 | && e[j - 1].ordinal != e[i].ordinal) | |
716 | { | |
870df5dc NC |
717 | if (pe_dll_warn_dup_exports) |
718 | /* xgettext:c-format */ | |
486e80e2 | 719 | einfo (_("%XError, duplicate EXPORT with ordinals: %s (%d vs %d)\n"), |
870df5dc | 720 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); |
252b5132 RH |
721 | } |
722 | else | |
723 | { | |
870df5dc NC |
724 | if (pe_dll_warn_dup_exports) |
725 | /* xgettext:c-format */ | |
726 | einfo (_("Warning, duplicate EXPORT: %s\n"), | |
727 | e[j - 1].name); | |
252b5132 | 728 | } |
775cabad | 729 | |
486e80e2 | 730 | if (e[i].ordinal != -1) |
252b5132 RH |
731 | e[j - 1].ordinal = e[i].ordinal; |
732 | e[j - 1].flag_private |= e[i].flag_private; | |
733 | e[j - 1].flag_constant |= e[i].flag_constant; | |
734 | e[j - 1].flag_noname |= e[i].flag_noname; | |
735 | e[j - 1].flag_data |= e[i].flag_data; | |
736 | } | |
737 | else | |
738 | { | |
739 | if (i != j) | |
740 | e[j] = e[i]; | |
741 | j++; | |
742 | } | |
743 | } | |
744 | pe_def_file->num_exports = j; /* == NE */ | |
745 | ||
746 | for (i = 0; i < NE; i++) | |
747 | { | |
1579bae1 | 748 | char *name; |
775cabad | 749 | |
a8d701fd DS |
750 | /* Check for forward exports */ |
751 | if (strchr (pe_def_file->exports[i].internal_name, '.')) | |
752 | { | |
753 | count_exported++; | |
754 | if (!pe_def_file->exports[i].flag_noname) | |
755 | count_exported_byname++; | |
756 | ||
757 | pe_def_file->exports[i].flag_forward = 1; | |
758 | ||
759 | if (pe_def_file->exports[i].ordinal != -1) | |
760 | { | |
761 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
762 | max_ordinal = pe_def_file->exports[i].ordinal; | |
763 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
764 | min_ordinal = pe_def_file->exports[i].ordinal; | |
765 | count_with_ordinals++; | |
766 | } | |
767 | ||
768 | continue; | |
769 | } | |
770 | ||
1579bae1 | 771 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 NC |
772 | if (pe_details->underscored |
773 | && (*pe_def_file->exports[i].internal_name != '@')) | |
c6c37250 DD |
774 | { |
775 | *name = '_'; | |
776 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
777 | } | |
778 | else | |
779 | strcpy (name, pe_def_file->exports[i].internal_name); | |
252b5132 RH |
780 | |
781 | blhe = bfd_link_hash_lookup (info->hash, | |
782 | name, | |
b34976b6 | 783 | FALSE, FALSE, TRUE); |
252b5132 | 784 | |
8a5b676c | 785 | if (blhe |
d643799d | 786 | && (blhe->type == bfd_link_hash_defined |
8a5b676c | 787 | || (blhe->type == bfd_link_hash_common))) |
252b5132 RH |
788 | { |
789 | count_exported++; | |
790 | if (!pe_def_file->exports[i].flag_noname) | |
791 | count_exported_byname++; | |
8a5b676c DD |
792 | |
793 | /* Only fill in the sections. The actual offsets are computed | |
794 | in fill_exported_offsets() after common symbols are laid | |
795 | out. */ | |
d643799d | 796 | if (blhe->type == bfd_link_hash_defined) |
8a5b676c DD |
797 | exported_symbol_sections[i] = blhe->u.def.section; |
798 | else | |
799 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
5cc18311 | 800 | |
252b5132 RH |
801 | if (pe_def_file->exports[i].ordinal != -1) |
802 | { | |
803 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
804 | max_ordinal = pe_def_file->exports[i].ordinal; | |
805 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
806 | min_ordinal = pe_def_file->exports[i].ordinal; | |
807 | count_with_ordinals++; | |
808 | } | |
809 | } | |
810 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
811 | { | |
812 | /* xgettext:c-format */ | |
813 | einfo (_("%XCannot export %s: symbol not defined\n"), | |
814 | pe_def_file->exports[i].internal_name); | |
815 | } | |
816 | else if (blhe) | |
817 | { | |
818 | /* xgettext:c-format */ | |
819 | einfo (_("%XCannot export %s: symbol wrong type (%d vs %d)\n"), | |
820 | pe_def_file->exports[i].internal_name, | |
821 | blhe->type, bfd_link_hash_defined); | |
822 | } | |
823 | else | |
824 | { | |
825 | /* xgettext:c-format */ | |
826 | einfo (_("%XCannot export %s: symbol not found\n"), | |
827 | pe_def_file->exports[i].internal_name); | |
828 | } | |
829 | free (name); | |
830 | } | |
831 | } | |
832 | ||
775cabad | 833 | /* Build the bfd that will contain .edata and .reloc sections. */ |
252b5132 RH |
834 | |
835 | static void | |
1579bae1 | 836 | build_filler_bfd (int include_edata) |
252b5132 RH |
837 | { |
838 | lang_input_statement_type *filler_file; | |
839 | filler_file = lang_add_input_file ("dll stuff", | |
840 | lang_input_file_is_fake_enum, | |
841 | NULL); | |
842 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", output_bfd); | |
843 | if (filler_bfd == NULL | |
844 | || !bfd_set_arch_mach (filler_bfd, | |
845 | bfd_get_arch (output_bfd), | |
846 | bfd_get_mach (output_bfd))) | |
847 | { | |
36230712 | 848 | einfo ("%X%P: can not create BFD: %E\n"); |
252b5132 RH |
849 | return; |
850 | } | |
851 | ||
c6c37250 | 852 | if (include_edata) |
252b5132 | 853 | { |
c6c37250 DD |
854 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
855 | if (edata_s == NULL | |
856 | || !bfd_set_section_flags (filler_bfd, edata_s, | |
857 | (SEC_HAS_CONTENTS | |
858 | | SEC_ALLOC | |
859 | | SEC_LOAD | |
860 | | SEC_KEEP | |
861 | | SEC_IN_MEMORY))) | |
862 | { | |
863 | einfo ("%X%P: can not create .edata section: %E\n"); | |
864 | return; | |
865 | } | |
866 | bfd_set_section_size (filler_bfd, edata_s, edata_sz); | |
252b5132 | 867 | } |
252b5132 RH |
868 | |
869 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
870 | if (reloc_s == NULL | |
871 | || !bfd_set_section_flags (filler_bfd, reloc_s, | |
872 | (SEC_HAS_CONTENTS | |
873 | | SEC_ALLOC | |
874 | | SEC_LOAD | |
875 | | SEC_KEEP | |
876 | | SEC_IN_MEMORY))) | |
877 | { | |
878 | einfo ("%X%P: can not create .reloc section: %E\n"); | |
879 | return; | |
880 | } | |
775cabad | 881 | |
252b5132 RH |
882 | bfd_set_section_size (filler_bfd, reloc_s, 0); |
883 | ||
884 | ldlang_add_file (filler_file); | |
885 | } | |
886 | ||
775cabad | 887 | /* Gather all the exported symbols and build the .edata section. */ |
252b5132 RH |
888 | |
889 | static void | |
1579bae1 | 890 | generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 RH |
891 | { |
892 | int i, next_ordinal; | |
893 | int name_table_size = 0; | |
894 | const char *dlnp; | |
895 | ||
896 | /* First, we need to know how many exported symbols there are, | |
5cc18311 | 897 | and what the range of ordinals is. */ |
252b5132 | 898 | if (pe_def_file->name) |
775cabad | 899 | dll_name = pe_def_file->name; |
252b5132 RH |
900 | else |
901 | { | |
902 | dll_name = abfd->filename; | |
775cabad | 903 | |
252b5132 | 904 | for (dlnp = dll_name; *dlnp; dlnp++) |
775cabad NC |
905 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') |
906 | dll_name = dlnp + 1; | |
252b5132 RH |
907 | } |
908 | ||
909 | if (count_with_ordinals && max_ordinal > count_exported) | |
910 | { | |
911 | if (min_ordinal > max_ordinal - count_exported + 1) | |
912 | min_ordinal = max_ordinal - count_exported + 1; | |
913 | } | |
914 | else | |
915 | { | |
916 | min_ordinal = 1; | |
917 | max_ordinal = count_exported; | |
918 | } | |
252b5132 | 919 | |
775cabad | 920 | export_table_size = max_ordinal - min_ordinal + 1; |
1579bae1 | 921 | exported_symbols = xmalloc (export_table_size * sizeof (int)); |
252b5132 RH |
922 | for (i = 0; i < export_table_size; i++) |
923 | exported_symbols[i] = -1; | |
924 | ||
86b1cc60 | 925 | /* Now we need to assign ordinals to those that don't have them. */ |
252b5132 RH |
926 | for (i = 0; i < NE; i++) |
927 | { | |
a8d701fd DS |
928 | if (exported_symbol_sections[i] || |
929 | pe_def_file->exports[i].flag_forward) | |
252b5132 RH |
930 | { |
931 | if (pe_def_file->exports[i].ordinal != -1) | |
932 | { | |
933 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
934 | int pi = exported_symbols[ei]; | |
775cabad | 935 | |
252b5132 RH |
936 | if (pi != -1) |
937 | { | |
938 | /* xgettext:c-format */ | |
486e80e2 | 939 | einfo (_("%XError, ordinal used twice: %d (%s vs %s)\n"), |
252b5132 RH |
940 | pe_def_file->exports[i].ordinal, |
941 | pe_def_file->exports[i].name, | |
942 | pe_def_file->exports[pi].name); | |
943 | } | |
944 | exported_symbols[ei] = i; | |
945 | } | |
946 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
947 | } | |
a8d701fd DS |
948 | |
949 | /* Reserve space for the forward name. */ | |
950 | if (pe_def_file->exports[i].flag_forward) | |
951 | { | |
952 | name_table_size += strlen (pe_def_file->exports[i].internal_name) + 1; | |
953 | } | |
252b5132 RH |
954 | } |
955 | ||
956 | next_ordinal = min_ordinal; | |
957 | for (i = 0; i < NE; i++) | |
a8d701fd DS |
958 | if ((exported_symbol_sections[i] || |
959 | pe_def_file->exports[i].flag_forward) && | |
960 | pe_def_file->exports[i].ordinal == -1) | |
961 | { | |
962 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
963 | next_ordinal++; | |
775cabad | 964 | |
a8d701fd DS |
965 | exported_symbols[next_ordinal - min_ordinal] = i; |
966 | pe_def_file->exports[i].ordinal = next_ordinal; | |
967 | } | |
252b5132 | 968 | |
86b1cc60 | 969 | /* OK, now we can allocate some memory. */ |
775cabad NC |
970 | edata_sz = (40 /* directory */ |
971 | + 4 * export_table_size /* addresses */ | |
252b5132 RH |
972 | + 4 * count_exported_byname /* name ptrs */ |
973 | + 2 * count_exported_byname /* ordinals */ | |
974 | + name_table_size + strlen (dll_name) + 1); | |
975 | } | |
976 | ||
8a5b676c DD |
977 | /* Fill the exported symbol offsets. The preliminary work has already |
978 | been done in process_def_file(). */ | |
979 | ||
980 | static void | |
1579bae1 | 981 | fill_exported_offsets (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
8a5b676c | 982 | { |
f0c87f88 | 983 | int i; |
8a5b676c | 984 | struct bfd_link_hash_entry *blhe; |
5cc18311 | 985 | |
8a5b676c DD |
986 | for (i = 0; i < pe_def_file->num_exports; i++) |
987 | { | |
1579bae1 | 988 | char *name; |
775cabad | 989 | |
1579bae1 | 990 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 | 991 | if (pe_details->underscored |
1579bae1 | 992 | && *pe_def_file->exports[i].internal_name != '@') |
8a5b676c DD |
993 | { |
994 | *name = '_'; | |
995 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
996 | } | |
997 | else | |
998 | strcpy (name, pe_def_file->exports[i].internal_name); | |
999 | ||
1000 | blhe = bfd_link_hash_lookup (info->hash, | |
1001 | name, | |
b34976b6 | 1002 | FALSE, FALSE, TRUE); |
8a5b676c | 1003 | |
1579bae1 | 1004 | if (blhe && blhe->type == bfd_link_hash_defined) |
775cabad NC |
1005 | exported_symbol_offsets[i] = blhe->u.def.value; |
1006 | ||
8a5b676c DD |
1007 | free (name); |
1008 | } | |
1009 | } | |
1010 | ||
252b5132 | 1011 | static void |
1579bae1 | 1012 | fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 | 1013 | { |
03a1c9a7 | 1014 | int s, hint; |
252b5132 | 1015 | unsigned char *edirectory; |
2f9636ba AM |
1016 | unsigned char *eaddresses; |
1017 | unsigned char *enameptrs; | |
1018 | unsigned char *eordinals; | |
47639182 | 1019 | char *enamestr; |
252b5132 RH |
1020 | time_t now; |
1021 | ||
1022 | time (&now); | |
1023 | ||
1579bae1 | 1024 | edata_d = xmalloc (edata_sz); |
252b5132 | 1025 | |
86b1cc60 | 1026 | /* Note use of array pointer math here. */ |
252b5132 | 1027 | edirectory = edata_d; |
2f9636ba AM |
1028 | eaddresses = edata_d + 40; |
1029 | enameptrs = eaddresses + 4 * export_table_size; | |
1030 | eordinals = enameptrs + 4 * count_exported_byname; | |
47639182 | 1031 | enamestr = (char *) eordinals + 2 * count_exported_byname; |
252b5132 | 1032 | |
1579bae1 AM |
1033 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) \ |
1034 | + edata_s->output_section->vma - image_base) | |
252b5132 | 1035 | |
c2a94a7a | 1036 | memset (edata_d, 0, edata_sz); |
252b5132 RH |
1037 | bfd_put_32 (abfd, now, edata_d + 4); |
1038 | if (pe_def_file->version_major != -1) | |
1039 | { | |
1040 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
1041 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
1042 | } | |
775cabad | 1043 | |
252b5132 RH |
1044 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); |
1045 | strcpy (enamestr, dll_name); | |
1046 | enamestr += strlen (enamestr) + 1; | |
1047 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
1048 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
1049 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
1050 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
1051 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
1052 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
1053 | ||
8a5b676c DD |
1054 | fill_exported_offsets (abfd, info); |
1055 | ||
03a1c9a7 NC |
1056 | /* Ok, now for the filling in part. |
1057 | Scan alphabetically - ie the ordering in the exports[] table, | |
1058 | rather than by ordinal - the ordering in the exported_symbol[] | |
1059 | table. See dlltool.c and: | |
1060 | http://sources.redhat.com/ml/binutils/2003-04/msg00379.html | |
1579bae1 | 1061 | for more information. */ |
252b5132 | 1062 | hint = 0; |
03a1c9a7 | 1063 | for (s = 0; s < NE; s++) |
252b5132 | 1064 | { |
f5a95868 | 1065 | struct bfd_section *ssec = exported_symbol_sections[s]; |
a8d701fd DS |
1066 | if (pe_def_file->exports[s].ordinal != -1 && |
1067 | (pe_def_file->exports[s].flag_forward || ssec != NULL)) | |
252b5132 | 1068 | { |
45b1f63c | 1069 | int ord = pe_def_file->exports[s].ordinal; |
252b5132 | 1070 | |
a8d701fd DS |
1071 | if (pe_def_file->exports[s].flag_forward) |
1072 | { | |
1073 | bfd_put_32 (abfd, ERVA (enamestr), | |
1074 | eaddresses + 4 * (ord - min_ordinal)); | |
1075 | ||
1076 | strcpy (enamestr, pe_def_file->exports[s].internal_name); | |
1077 | enamestr += strlen (pe_def_file->exports[s].internal_name) + 1; | |
1078 | } | |
1079 | else | |
1080 | { | |
1081 | unsigned long srva = (exported_symbol_offsets[s] | |
1082 | + ssec->output_section->vma | |
1083 | + ssec->output_offset); | |
1084 | ||
1085 | bfd_put_32 (abfd, srva - image_base, | |
1086 | eaddresses + 4 * (ord - min_ordinal)); | |
1087 | } | |
775cabad | 1088 | |
252b5132 RH |
1089 | if (!pe_def_file->exports[s].flag_noname) |
1090 | { | |
1091 | char *ename = pe_def_file->exports[s].name; | |
03a1c9a7 | 1092 | |
2f9636ba AM |
1093 | bfd_put_32 (abfd, ERVA (enamestr), enameptrs); |
1094 | enameptrs += 4; | |
252b5132 RH |
1095 | strcpy (enamestr, ename); |
1096 | enamestr += strlen (enamestr) + 1; | |
2f9636ba AM |
1097 | bfd_put_16 (abfd, ord - min_ordinal, eordinals); |
1098 | eordinals += 2; | |
252b5132 RH |
1099 | pe_def_file->exports[s].hint = hint++; |
1100 | } | |
252b5132 RH |
1101 | } |
1102 | } | |
1103 | } | |
1104 | ||
b044cda1 | 1105 | |
198beae2 | 1106 | static struct bfd_section *current_sec; |
b044cda1 CW |
1107 | |
1108 | void | |
1579bae1 AM |
1109 | pe_walk_relocs_of_symbol (struct bfd_link_info *info, |
1110 | const char *name, | |
1111 | int (*cb) (arelent *, asection *)) | |
b044cda1 CW |
1112 | { |
1113 | bfd *b; | |
0d888aac | 1114 | asection *s; |
b044cda1 CW |
1115 | |
1116 | for (b = info->input_bfds; b; b = b->link_next) | |
1117 | { | |
775cabad NC |
1118 | asymbol **symbols; |
1119 | int nsyms, symsize; | |
1120 | ||
1121 | symsize = bfd_get_symtab_upper_bound (b); | |
1579bae1 | 1122 | symbols = xmalloc (symsize); |
775cabad | 1123 | nsyms = bfd_canonicalize_symtab (b, symbols); |
b044cda1 CW |
1124 | |
1125 | for (s = b->sections; s; s = s->next) | |
1126 | { | |
775cabad NC |
1127 | arelent **relocs; |
1128 | int relsize, nrelocs, i; | |
b044cda1 CW |
1129 | int flags = bfd_get_section_flags (b, s); |
1130 | ||
775cabad | 1131 | /* Skip discarded linkonce sections. */ |
b044cda1 CW |
1132 | if (flags & SEC_LINK_ONCE |
1133 | && s->output_section == bfd_abs_section_ptr) | |
1134 | continue; | |
1135 | ||
0d888aac | 1136 | current_sec = s; |
b044cda1 | 1137 | |
b044cda1 | 1138 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1139 | relocs = xmalloc (relsize); |
b044cda1 CW |
1140 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1141 | ||
1142 | for (i = 0; i < nrelocs; i++) | |
1143 | { | |
fc0a2244 | 1144 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad NC |
1145 | |
1146 | if (!strcmp (name, sym->name)) | |
1147 | cb (relocs[i], s); | |
b044cda1 | 1148 | } |
775cabad | 1149 | |
b044cda1 | 1150 | free (relocs); |
775cabad | 1151 | |
b044cda1 CW |
1152 | /* Warning: the allocated symbols are remembered in BFD and reused |
1153 | later, so don't free them! */ | |
1154 | /* free (symbols); */ | |
1155 | } | |
1156 | } | |
1157 | } | |
1158 | ||
775cabad | 1159 | /* Gather all the relocations and build the .reloc section. */ |
252b5132 RH |
1160 | |
1161 | static void | |
1579bae1 | 1162 | generate_reloc (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
1163 | { |
1164 | ||
86b1cc60 | 1165 | /* For .reloc stuff. */ |
c6c37250 | 1166 | reloc_data_type *reloc_data; |
252b5132 RH |
1167 | int total_relocs = 0; |
1168 | int i; | |
1579bae1 | 1169 | unsigned long sec_page = (unsigned long) -1; |
252b5132 RH |
1170 | unsigned long page_ptr, page_count; |
1171 | int bi; | |
1172 | bfd *b; | |
198beae2 | 1173 | struct bfd_section *s; |
252b5132 RH |
1174 | |
1175 | total_relocs = 0; | |
1176 | for (b = info->input_bfds; b; b = b->link_next) | |
1177 | for (s = b->sections; s; s = s->next) | |
1178 | total_relocs += s->reloc_count; | |
1179 | ||
1579bae1 | 1180 | reloc_data = xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
1181 | |
1182 | total_relocs = 0; | |
1183 | bi = 0; | |
1184 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link_next) | |
1185 | { | |
1186 | arelent **relocs; | |
1187 | int relsize, nrelocs, i; | |
1188 | ||
1189 | for (s = b->sections; s; s = s->next) | |
1190 | { | |
1191 | unsigned long sec_vma = s->output_section->vma + s->output_offset; | |
1192 | asymbol **symbols; | |
1193 | int nsyms, symsize; | |
1194 | ||
86b1cc60 | 1195 | /* If it's not loaded, we don't need to relocate it this way. */ |
252b5132 RH |
1196 | if (!(s->output_section->flags & SEC_LOAD)) |
1197 | continue; | |
1198 | ||
1199 | /* I don't know why there would be a reloc for these, but I've | |
86b1cc60 | 1200 | seen it happen - DJ */ |
252b5132 RH |
1201 | if (s->output_section == &bfd_abs_section) |
1202 | continue; | |
1203 | ||
1204 | if (s->output_section->vma == 0) | |
1205 | { | |
86b1cc60 | 1206 | /* Huh? Shouldn't happen, but punt if it does. */ |
252b5132 RH |
1207 | einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n", |
1208 | s->output_section->name, s->output_section->index, | |
1209 | s->output_section->flags); | |
1210 | continue; | |
1211 | } | |
1212 | ||
1213 | symsize = bfd_get_symtab_upper_bound (b); | |
1579bae1 | 1214 | symbols = xmalloc (symsize); |
252b5132 RH |
1215 | nsyms = bfd_canonicalize_symtab (b, symbols); |
1216 | ||
1217 | relsize = bfd_get_reloc_upper_bound (b, s); | |
1579bae1 | 1218 | relocs = xmalloc (relsize); |
252b5132 RH |
1219 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1220 | ||
1221 | for (i = 0; i < nrelocs; i++) | |
1222 | { | |
b044cda1 | 1223 | if (pe_dll_extra_pe_debug) |
b7a26f91 | 1224 | { |
fc0a2244 | 1225 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
b7a26f91 | 1226 | printf ("rel: %s\n", sym->name); |
b044cda1 | 1227 | } |
252b5132 | 1228 | if (!relocs[i]->howto->pc_relative |
c6c37250 | 1229 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 1230 | { |
c6c37250 | 1231 | bfd_vma sym_vma; |
fc0a2244 | 1232 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad | 1233 | |
c6c37250 DD |
1234 | sym_vma = (relocs[i]->addend |
1235 | + sym->value | |
1236 | + sym->section->vma | |
1237 | + sym->section->output_offset | |
1238 | + sym->section->output_section->vma); | |
1239 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; | |
5cc18311 | 1240 | |
344a211f | 1241 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) |
5cc18311 | 1242 | |
344a211f NC |
1243 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, |
1244 | relocs[i]->howto->rightshift) | |
252b5132 | 1245 | { |
99ad8390 NC |
1246 | #ifdef pe_use_x86_64 |
1247 | case BITS_AND_SHIFT (64, 0): | |
1248 | reloc_data[total_relocs].type = 10; | |
1249 | total_relocs++; | |
1250 | break; | |
1251 | #endif | |
344a211f | 1252 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
1253 | reloc_data[total_relocs].type = 3; |
1254 | total_relocs++; | |
252b5132 | 1255 | break; |
344a211f NC |
1256 | case BITS_AND_SHIFT (16, 0): |
1257 | reloc_data[total_relocs].type = 2; | |
1258 | total_relocs++; | |
1259 | break; | |
1260 | case BITS_AND_SHIFT (16, 16): | |
1261 | reloc_data[total_relocs].type = 4; | |
86b1cc60 KH |
1262 | /* FIXME: we can't know the symbol's right value |
1263 | yet, but we probably can safely assume that | |
1264 | CE will relocate us in 64k blocks, so leaving | |
1265 | it zero is safe. */ | |
344a211f NC |
1266 | reloc_data[total_relocs].extra = 0; |
1267 | total_relocs++; | |
1268 | break; | |
1269 | case BITS_AND_SHIFT (26, 2): | |
1270 | reloc_data[total_relocs].type = 5; | |
1271 | total_relocs++; | |
1272 | break; | |
fea39bcb | 1273 | case BITS_AND_SHIFT (24, 2): |
d3793eaa NC |
1274 | /* FIXME: 0 is ARM_26D, it is defined in bfd/coff-arm.c |
1275 | Those ARM_xxx definitions should go in proper | |
1276 | header someday. */ | |
1277 | if (relocs[i]->howto->type == 0 | |
1278 | /* Older GNU linkers used 5 instead of 0 for this reloc. */ | |
1279 | || relocs[i]->howto->type == 5) | |
fea39bcb NC |
1280 | /* This is an ARM_26D reloc, which is an ARM_26 reloc |
1281 | that has already been fully processed during a | |
1282 | previous link stage, so ignore it here. */ | |
1283 | break; | |
1284 | /* Fall through. */ | |
252b5132 RH |
1285 | default: |
1286 | /* xgettext:c-format */ | |
1287 | einfo (_("%XError: %d-bit reloc in dll\n"), | |
1288 | relocs[i]->howto->bitsize); | |
1289 | break; | |
1290 | } | |
1291 | } | |
1292 | } | |
1293 | free (relocs); | |
86b1cc60 KH |
1294 | /* Warning: the allocated symbols are remembered in BFD and |
1295 | reused later, so don't free them! */ | |
252b5132 RH |
1296 | } |
1297 | } | |
1298 | ||
1299 | /* At this point, we have total_relocs relocation addresses in | |
1300 | reloc_addresses, which are all suitable for the .reloc section. | |
5cc18311 | 1301 | We must now create the new sections. */ |
c6c37250 | 1302 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
1303 | |
1304 | for (i = 0; i < total_relocs; i++) | |
1305 | { | |
c6c37250 | 1306 | unsigned long this_page = (reloc_data[i].vma >> 12); |
5cc18311 | 1307 | |
252b5132 RH |
1308 | if (this_page != sec_page) |
1309 | { | |
775cabad | 1310 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
252b5132 RH |
1311 | reloc_sz += 8; |
1312 | sec_page = this_page; | |
1313 | } | |
5cc18311 | 1314 | |
252b5132 | 1315 | reloc_sz += 2; |
5cc18311 | 1316 | |
344a211f NC |
1317 | if (reloc_data[i].type == 4) |
1318 | reloc_sz += 2; | |
252b5132 | 1319 | } |
b7a26f91 | 1320 | |
775cabad | 1321 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
1579bae1 AM |
1322 | reloc_d = xmalloc (reloc_sz); |
1323 | sec_page = (unsigned long) -1; | |
252b5132 | 1324 | reloc_sz = 0; |
1579bae1 | 1325 | page_ptr = (unsigned long) -1; |
252b5132 | 1326 | page_count = 0; |
775cabad | 1327 | |
252b5132 RH |
1328 | for (i = 0; i < total_relocs; i++) |
1329 | { | |
c6c37250 | 1330 | unsigned long rva = reloc_data[i].vma - image_base; |
252b5132 | 1331 | unsigned long this_page = (rva & ~0xfff); |
775cabad | 1332 | |
252b5132 RH |
1333 | if (this_page != sec_page) |
1334 | { | |
1335 | while (reloc_sz & 3) | |
1336 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1337 | |
1579bae1 | 1338 | if (page_ptr != (unsigned long) -1) |
252b5132 | 1339 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1340 | |
252b5132 RH |
1341 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); |
1342 | page_ptr = reloc_sz; | |
1343 | reloc_sz += 8; | |
1344 | sec_page = this_page; | |
1345 | page_count = 0; | |
1346 | } | |
775cabad | 1347 | |
d643799d | 1348 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type << 12), |
c6c37250 | 1349 | reloc_d + reloc_sz); |
252b5132 | 1350 | reloc_sz += 2; |
775cabad | 1351 | |
c6c37250 DD |
1352 | if (reloc_data[i].type == 4) |
1353 | { | |
1354 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
1355 | reloc_sz += 2; | |
1356 | } | |
775cabad | 1357 | |
252b5132 RH |
1358 | page_count++; |
1359 | } | |
775cabad | 1360 | |
252b5132 RH |
1361 | while (reloc_sz & 3) |
1362 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1363 | |
1579bae1 | 1364 | if (page_ptr != (unsigned long) -1) |
252b5132 | 1365 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1366 | |
eea6121a | 1367 | while (reloc_sz < reloc_s->size) |
252b5132 RH |
1368 | reloc_d[reloc_sz++] = 0; |
1369 | } | |
1370 | ||
775cabad NC |
1371 | /* Given the exiting def_file structure, print out a .DEF file that |
1372 | corresponds to it. */ | |
252b5132 RH |
1373 | |
1374 | static void | |
1579bae1 | 1375 | quoteput (char *s, FILE *f, int needs_quotes) |
252b5132 RH |
1376 | { |
1377 | char *cp; | |
775cabad | 1378 | |
252b5132 RH |
1379 | for (cp = s; *cp; cp++) |
1380 | if (*cp == '\'' | |
1381 | || *cp == '"' | |
1382 | || *cp == '\\' | |
3882b010 | 1383 | || ISSPACE (*cp) |
252b5132 RH |
1384 | || *cp == ',' |
1385 | || *cp == ';') | |
1386 | needs_quotes = 1; | |
775cabad | 1387 | |
252b5132 RH |
1388 | if (needs_quotes) |
1389 | { | |
1390 | putc ('"', f); | |
775cabad | 1391 | |
252b5132 RH |
1392 | while (*s) |
1393 | { | |
1394 | if (*s == '"' || *s == '\\') | |
1395 | putc ('\\', f); | |
775cabad | 1396 | |
252b5132 RH |
1397 | putc (*s, f); |
1398 | s++; | |
1399 | } | |
775cabad | 1400 | |
252b5132 RH |
1401 | putc ('"', f); |
1402 | } | |
1403 | else | |
1404 | fputs (s, f); | |
1405 | } | |
1406 | ||
1407 | void | |
1579bae1 | 1408 | pe_dll_generate_def_file (const char *pe_out_def_filename) |
252b5132 RH |
1409 | { |
1410 | int i; | |
1411 | FILE *out = fopen (pe_out_def_filename, "w"); | |
775cabad | 1412 | |
252b5132 | 1413 | if (out == NULL) |
775cabad NC |
1414 | /* xgettext:c-format */ |
1415 | einfo (_("%s: Can't open output def file %s\n"), | |
1416 | program_name, pe_out_def_filename); | |
252b5132 RH |
1417 | |
1418 | if (pe_def_file) | |
1419 | { | |
1420 | if (pe_def_file->name) | |
1421 | { | |
1422 | if (pe_def_file->is_dll) | |
1423 | fprintf (out, "LIBRARY "); | |
1424 | else | |
1425 | fprintf (out, "NAME "); | |
775cabad | 1426 | |
252b5132 | 1427 | quoteput (pe_def_file->name, out, 1); |
775cabad | 1428 | |
252b5132 RH |
1429 | if (pe_data (output_bfd)->pe_opthdr.ImageBase) |
1430 | fprintf (out, " BASE=0x%lx", | |
1431 | (unsigned long) pe_data (output_bfd)->pe_opthdr.ImageBase); | |
1432 | fprintf (out, "\n"); | |
1433 | } | |
1434 | ||
1435 | if (pe_def_file->description) | |
1436 | { | |
1437 | fprintf (out, "DESCRIPTION "); | |
1438 | quoteput (pe_def_file->description, out, 1); | |
1439 | fprintf (out, "\n"); | |
1440 | } | |
1441 | ||
1442 | if (pe_def_file->version_minor != -1) | |
1443 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
1444 | pe_def_file->version_minor); | |
1445 | else if (pe_def_file->version_major != -1) | |
1446 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
1447 | ||
1448 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
1449 | fprintf (out, "\n"); | |
1450 | ||
1451 | if (pe_def_file->stack_commit != -1) | |
1452 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
1453 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
1454 | else if (pe_def_file->stack_reserve != -1) | |
1455 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
775cabad | 1456 | |
252b5132 RH |
1457 | if (pe_def_file->heap_commit != -1) |
1458 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1459 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1460 | else if (pe_def_file->heap_reserve != -1) | |
1461 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1462 | ||
1463 | if (pe_def_file->num_section_defs > 0) | |
1464 | { | |
1465 | fprintf (out, "\nSECTIONS\n\n"); | |
775cabad | 1466 | |
252b5132 RH |
1467 | for (i = 0; i < pe_def_file->num_section_defs; i++) |
1468 | { | |
1469 | fprintf (out, " "); | |
1470 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
775cabad | 1471 | |
252b5132 RH |
1472 | if (pe_def_file->section_defs[i].class) |
1473 | { | |
1474 | fprintf (out, " CLASS "); | |
1475 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1476 | } | |
775cabad | 1477 | |
252b5132 RH |
1478 | if (pe_def_file->section_defs[i].flag_read) |
1479 | fprintf (out, " READ"); | |
775cabad | 1480 | |
252b5132 RH |
1481 | if (pe_def_file->section_defs[i].flag_write) |
1482 | fprintf (out, " WRITE"); | |
775cabad | 1483 | |
252b5132 RH |
1484 | if (pe_def_file->section_defs[i].flag_execute) |
1485 | fprintf (out, " EXECUTE"); | |
775cabad | 1486 | |
252b5132 RH |
1487 | if (pe_def_file->section_defs[i].flag_shared) |
1488 | fprintf (out, " SHARED"); | |
775cabad | 1489 | |
252b5132 RH |
1490 | fprintf (out, "\n"); |
1491 | } | |
1492 | } | |
1493 | ||
1494 | if (pe_def_file->num_exports > 0) | |
1495 | { | |
b044cda1 | 1496 | fprintf (out, "EXPORTS\n"); |
775cabad | 1497 | |
252b5132 RH |
1498 | for (i = 0; i < pe_def_file->num_exports; i++) |
1499 | { | |
1500 | def_file_export *e = pe_def_file->exports + i; | |
1501 | fprintf (out, " "); | |
1502 | quoteput (e->name, out, 0); | |
775cabad | 1503 | |
252b5132 RH |
1504 | if (e->internal_name && strcmp (e->internal_name, e->name)) |
1505 | { | |
1506 | fprintf (out, " = "); | |
1507 | quoteput (e->internal_name, out, 0); | |
1508 | } | |
775cabad | 1509 | |
252b5132 RH |
1510 | if (e->ordinal != -1) |
1511 | fprintf (out, " @%d", e->ordinal); | |
775cabad | 1512 | |
252b5132 RH |
1513 | if (e->flag_private) |
1514 | fprintf (out, " PRIVATE"); | |
775cabad | 1515 | |
252b5132 RH |
1516 | if (e->flag_constant) |
1517 | fprintf (out, " CONSTANT"); | |
775cabad | 1518 | |
252b5132 RH |
1519 | if (e->flag_noname) |
1520 | fprintf (out, " NONAME"); | |
775cabad | 1521 | |
252b5132 RH |
1522 | if (e->flag_data) |
1523 | fprintf (out, " DATA"); | |
1524 | ||
1525 | fprintf (out, "\n"); | |
1526 | } | |
1527 | } | |
1528 | ||
1529 | if (pe_def_file->num_imports > 0) | |
1530 | { | |
1531 | fprintf (out, "\nIMPORTS\n\n"); | |
775cabad | 1532 | |
252b5132 RH |
1533 | for (i = 0; i < pe_def_file->num_imports; i++) |
1534 | { | |
1535 | def_file_import *im = pe_def_file->imports + i; | |
1536 | fprintf (out, " "); | |
775cabad | 1537 | |
252b5132 RH |
1538 | if (im->internal_name |
1539 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1540 | { | |
1541 | quoteput (im->internal_name, out, 0); | |
1542 | fprintf (out, " = "); | |
1543 | } | |
775cabad | 1544 | |
252b5132 RH |
1545 | quoteput (im->module->name, out, 0); |
1546 | fprintf (out, "."); | |
775cabad | 1547 | |
252b5132 RH |
1548 | if (im->name) |
1549 | quoteput (im->name, out, 0); | |
1550 | else | |
1551 | fprintf (out, "%d", im->ordinal); | |
775cabad | 1552 | |
252b5132 RH |
1553 | fprintf (out, "\n"); |
1554 | } | |
1555 | } | |
1556 | } | |
1557 | else | |
1558 | fprintf (out, _("; no contents available\n")); | |
1559 | ||
1560 | if (fclose (out) == EOF) | |
775cabad NC |
1561 | /* xgettext:c-format */ |
1562 | einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename); | |
252b5132 RH |
1563 | } |
1564 | ||
775cabad | 1565 | /* Generate the import library. */ |
252b5132 RH |
1566 | |
1567 | static asymbol **symtab; | |
1568 | static int symptr; | |
1569 | static int tmp_seq; | |
1570 | static const char *dll_filename; | |
1571 | static char *dll_symname; | |
1572 | ||
1573 | #define UNDSEC (asection *) &bfd_und_section | |
1574 | ||
1575 | static asection * | |
1579bae1 | 1576 | quick_section (bfd *abfd, const char *name, int flags, int align) |
252b5132 RH |
1577 | { |
1578 | asection *sec; | |
1579 | asymbol *sym; | |
1580 | ||
1581 | sec = bfd_make_section_old_way (abfd, name); | |
86b1cc60 | 1582 | bfd_set_section_flags (abfd, sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP); |
252b5132 | 1583 | bfd_set_section_alignment (abfd, sec, align); |
86b1cc60 | 1584 | /* Remember to undo this before trying to link internally! */ |
252b5132 RH |
1585 | sec->output_section = sec; |
1586 | ||
1587 | sym = bfd_make_empty_symbol (abfd); | |
1588 | symtab[symptr++] = sym; | |
1589 | sym->name = sec->name; | |
1590 | sym->section = sec; | |
1591 | sym->flags = BSF_LOCAL; | |
1592 | sym->value = 0; | |
1593 | ||
1594 | return sec; | |
1595 | } | |
1596 | ||
1597 | static void | |
1579bae1 AM |
1598 | quick_symbol (bfd *abfd, |
1599 | const char *n1, | |
1600 | const char *n2, | |
1601 | const char *n3, | |
1602 | asection *sec, | |
1603 | int flags, | |
1604 | int addr) | |
252b5132 RH |
1605 | { |
1606 | asymbol *sym; | |
1579bae1 | 1607 | char *name = xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); |
775cabad | 1608 | |
252b5132 RH |
1609 | strcpy (name, n1); |
1610 | strcat (name, n2); | |
1611 | strcat (name, n3); | |
1612 | sym = bfd_make_empty_symbol (abfd); | |
1613 | sym->name = name; | |
1614 | sym->section = sec; | |
1615 | sym->flags = flags; | |
1616 | sym->value = addr; | |
1617 | symtab[symptr++] = sym; | |
1618 | } | |
1619 | ||
1620 | static arelent *reltab = 0; | |
1621 | static int relcount = 0, relsize = 0; | |
1622 | ||
1623 | static void | |
1579bae1 | 1624 | quick_reloc (bfd *abfd, int address, int which_howto, int symidx) |
252b5132 | 1625 | { |
1579bae1 | 1626 | if (relcount >= relsize - 1) |
252b5132 RH |
1627 | { |
1628 | relsize += 10; | |
1629 | if (reltab) | |
1579bae1 | 1630 | reltab = xrealloc (reltab, relsize * sizeof (arelent)); |
252b5132 | 1631 | else |
1579bae1 | 1632 | reltab = xmalloc (relsize * sizeof (arelent)); |
252b5132 RH |
1633 | } |
1634 | reltab[relcount].address = address; | |
1635 | reltab[relcount].addend = 0; | |
1636 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
1637 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
1638 | relcount++; | |
1639 | } | |
1640 | ||
1641 | static void | |
1642 | save_relocs (asection *sec) | |
1643 | { | |
1644 | int i; | |
775cabad | 1645 | |
252b5132 RH |
1646 | sec->relocation = reltab; |
1647 | sec->reloc_count = relcount; | |
1579bae1 | 1648 | sec->orelocation = xmalloc ((relcount + 1) * sizeof (arelent *)); |
d643799d | 1649 | for (i = 0; i < relcount; i++) |
252b5132 RH |
1650 | sec->orelocation[i] = sec->relocation + i; |
1651 | sec->orelocation[relcount] = 0; | |
1652 | sec->flags |= SEC_RELOC; | |
1653 | reltab = 0; | |
1654 | relcount = relsize = 0; | |
1655 | } | |
1656 | ||
775cabad NC |
1657 | /* .section .idata$2 |
1658 | .global __head_my_dll | |
1659 | __head_my_dll: | |
1660 | .rva hname | |
1661 | .long 0 | |
1662 | .long 0 | |
1663 | .rva __my_dll_iname | |
1664 | .rva fthunk | |
b7a26f91 | 1665 | |
775cabad NC |
1666 | .section .idata$5 |
1667 | .long 0 | |
1668 | fthunk: | |
b7a26f91 | 1669 | |
775cabad NC |
1670 | .section .idata$4 |
1671 | .long 0 | |
1672 | hname: */ | |
252b5132 RH |
1673 | |
1674 | static bfd * | |
1579bae1 | 1675 | make_head (bfd *parent) |
252b5132 RH |
1676 | { |
1677 | asection *id2, *id5, *id4; | |
1678 | unsigned char *d2, *d5, *d4; | |
1679 | char *oname; | |
1680 | bfd *abfd; | |
1681 | ||
1579bae1 | 1682 | oname = xmalloc (20); |
252b5132 RH |
1683 | sprintf (oname, "d%06d.o", tmp_seq); |
1684 | tmp_seq++; | |
1685 | ||
1686 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1687 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1688 | bfd_make_writable (abfd); |
1689 | ||
1690 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1691 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1692 | |
1693 | symptr = 0; | |
1579bae1 | 1694 | symtab = xmalloc (6 * sizeof (asymbol *)); |
252b5132 RH |
1695 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
1696 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1697 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
d643799d KH |
1698 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
1699 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
c6c37250 DD |
1700 | |
1701 | /* OK, pay attention here. I got confused myself looking back at | |
1702 | it. We create a four-byte section to mark the beginning of the | |
1703 | list, and we include an offset of 4 in the section, so that the | |
1704 | pointer to the list points to the *end* of this section, which is | |
5cc18311 | 1705 | the start of the list of sections from other objects. */ |
252b5132 RH |
1706 | |
1707 | bfd_set_section_size (abfd, id2, 20); | |
1579bae1 | 1708 | d2 = xmalloc (20); |
252b5132 RH |
1709 | id2->contents = d2; |
1710 | memset (d2, 0, 20); | |
775cabad | 1711 | d2[0] = d2[16] = 4; /* Reloc addend. */ |
252b5132 RH |
1712 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
1713 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
1714 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
1715 | save_relocs (id2); | |
1716 | ||
99ad8390 NC |
1717 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
1718 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 1719 | id5->contents = d5; |
99ad8390 | 1720 | memset (d5, 0, PE_IDATA5_SIZE); |
252b5132 | 1721 | |
99ad8390 NC |
1722 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
1723 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 1724 | id4->contents = d4; |
99ad8390 | 1725 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 RH |
1726 | |
1727 | bfd_set_symtab (abfd, symtab, symptr); | |
1728 | ||
1729 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
99ad8390 NC |
1730 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); |
1731 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
5cc18311 | 1732 | |
252b5132 RH |
1733 | bfd_make_readable (abfd); |
1734 | return abfd; | |
1735 | } | |
1736 | ||
775cabad NC |
1737 | /* .section .idata$4 |
1738 | .long 0 | |
99ad8390 | 1739 | [.long 0] for PE+ |
775cabad NC |
1740 | .section .idata$5 |
1741 | .long 0 | |
99ad8390 | 1742 | [.long 0] for PE+ |
775cabad NC |
1743 | .section idata$7 |
1744 | .global __my_dll_iname | |
1745 | __my_dll_iname: | |
1746 | .asciz "my.dll" */ | |
252b5132 RH |
1747 | |
1748 | static bfd * | |
1579bae1 | 1749 | make_tail (bfd *parent) |
252b5132 RH |
1750 | { |
1751 | asection *id4, *id5, *id7; | |
1752 | unsigned char *d4, *d5, *d7; | |
1753 | int len; | |
1754 | char *oname; | |
1755 | bfd *abfd; | |
1756 | ||
1579bae1 | 1757 | oname = xmalloc (20); |
252b5132 RH |
1758 | sprintf (oname, "d%06d.o", tmp_seq); |
1759 | tmp_seq++; | |
1760 | ||
1761 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1762 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1763 | bfd_make_writable (abfd); |
1764 | ||
1765 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1766 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1767 | |
1768 | symptr = 0; | |
1579bae1 | 1769 | symtab = xmalloc (5 * sizeof (asymbol *)); |
252b5132 RH |
1770 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
1771 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1772 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
d643799d | 1773 | quick_symbol (abfd, U (""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 | 1774 | |
99ad8390 NC |
1775 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
1776 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 1777 | id4->contents = d4; |
99ad8390 | 1778 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 | 1779 | |
99ad8390 NC |
1780 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
1781 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 1782 | id5->contents = d5; |
99ad8390 | 1783 | memset (d5, 0, PE_IDATA5_SIZE); |
252b5132 | 1784 | |
d643799d | 1785 | len = strlen (dll_filename) + 1; |
252b5132 | 1786 | if (len & 1) |
d643799d | 1787 | len++; |
252b5132 | 1788 | bfd_set_section_size (abfd, id7, len); |
1579bae1 | 1789 | d7 = xmalloc (len); |
252b5132 | 1790 | id7->contents = d7; |
47639182 | 1791 | strcpy ((char *) d7, dll_filename); |
252b5132 RH |
1792 | |
1793 | bfd_set_symtab (abfd, symtab, symptr); | |
1794 | ||
99ad8390 NC |
1795 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); |
1796 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
252b5132 RH |
1797 | bfd_set_section_contents (abfd, id7, d7, 0, len); |
1798 | ||
1799 | bfd_make_readable (abfd); | |
1800 | return abfd; | |
1801 | } | |
1802 | ||
775cabad NC |
1803 | /* .text |
1804 | .global _function | |
1805 | .global ___imp_function | |
1806 | .global __imp__function | |
1807 | _function: | |
1808 | jmp *__imp__function: | |
b7a26f91 | 1809 | |
775cabad NC |
1810 | .section idata$7 |
1811 | .long __head_my_dll | |
b7a26f91 | 1812 | |
775cabad NC |
1813 | .section .idata$5 |
1814 | ___imp_function: | |
1815 | __imp__function: | |
1816 | iat? | |
1817 | .section .idata$4 | |
1818 | iat? | |
1819 | .section .idata$6 | |
1820 | ID<ordinal>: | |
1821 | .short <hint> | |
1822 | .asciz "function" xlate? (add underscore, kill at) */ | |
1823 | ||
1824 | static unsigned char jmp_ix86_bytes[] = | |
1825 | { | |
252b5132 RH |
1826 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 |
1827 | }; | |
1828 | ||
775cabad NC |
1829 | /* _function: |
1830 | mov.l ip+8,r0 | |
1831 | mov.l @r0,r0 | |
1832 | jmp @r0 | |
1833 | nop | |
1834 | .dw __imp_function */ | |
344a211f | 1835 | |
775cabad NC |
1836 | static unsigned char jmp_sh_bytes[] = |
1837 | { | |
344a211f NC |
1838 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 |
1839 | }; | |
1840 | ||
775cabad NC |
1841 | /* _function: |
1842 | lui $t0,<high:__imp_function> | |
1843 | lw $t0,<low:__imp_function> | |
1844 | jr $t0 | |
1845 | nop */ | |
344a211f | 1846 | |
775cabad NC |
1847 | static unsigned char jmp_mips_bytes[] = |
1848 | { | |
344a211f NC |
1849 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, |
1850 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
1851 | }; | |
252b5132 | 1852 | |
53baae48 NC |
1853 | static unsigned char jmp_arm_bytes[] = |
1854 | { | |
1855 | 0x00, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */ | |
1856 | 0x00, 0xf0, 0x9c, 0xe5, /* ldr pc, [ip] */ | |
1857 | 0, 0, 0, 0 | |
1858 | }; | |
1859 | ||
1860 | ||
252b5132 | 1861 | static bfd * |
1579bae1 | 1862 | make_one (def_file_export *exp, bfd *parent) |
252b5132 RH |
1863 | { |
1864 | asection *tx, *id7, *id5, *id4, *id6; | |
23a87948 | 1865 | unsigned char *td = NULL, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
1866 | int len; |
1867 | char *oname; | |
1868 | bfd *abfd; | |
f0c87f88 NC |
1869 | unsigned char *jmp_bytes = NULL; |
1870 | int jmp_byte_count = 0; | |
c6c37250 DD |
1871 | |
1872 | switch (pe_details->pe_arch) | |
1873 | { | |
1874 | case PE_ARCH_i386: | |
1875 | jmp_bytes = jmp_ix86_bytes; | |
1876 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
1877 | break; | |
344a211f NC |
1878 | case PE_ARCH_sh: |
1879 | jmp_bytes = jmp_sh_bytes; | |
1880 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
1881 | break; | |
1882 | case PE_ARCH_mips: | |
1883 | jmp_bytes = jmp_mips_bytes; | |
1884 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
1885 | break; | |
53baae48 | 1886 | case PE_ARCH_arm: |
7148cc28 NC |
1887 | case PE_ARCH_arm_epoc: |
1888 | case PE_ARCH_arm_wince: | |
53baae48 NC |
1889 | jmp_bytes = jmp_arm_bytes; |
1890 | jmp_byte_count = sizeof (jmp_arm_bytes); | |
1891 | break; | |
775cabad NC |
1892 | default: |
1893 | abort (); | |
c6c37250 | 1894 | } |
252b5132 | 1895 | |
1579bae1 | 1896 | oname = xmalloc (20); |
252b5132 RH |
1897 | sprintf (oname, "d%06d.o", tmp_seq); |
1898 | tmp_seq++; | |
1899 | ||
1900 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1901 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1902 | bfd_make_writable (abfd); |
1903 | ||
1904 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1905 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1906 | |
1907 | symptr = 0; | |
1579bae1 | 1908 | symtab = xmalloc (11 * sizeof (asymbol *)); |
252b5132 RH |
1909 | tx = quick_section (abfd, ".text", SEC_CODE|SEC_HAS_CONTENTS, 2); |
1910 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
1911 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1912 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
1913 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
b34976b6 | 1914 | |
c9e38879 NC |
1915 | if (*exp->internal_name == '@') |
1916 | { | |
1579bae1 AM |
1917 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
1918 | BSF_GLOBAL, 0); | |
4b7f0676 NC |
1919 | if (! exp->flag_data) |
1920 | quick_symbol (abfd, "", exp->internal_name, "", tx, BSF_GLOBAL, 0); | |
1579bae1 AM |
1921 | quick_symbol (abfd, U ("_imp_"), exp->internal_name, "", id5, |
1922 | BSF_GLOBAL, 0); | |
c9e38879 NC |
1923 | /* Fastcall applies only to functions, |
1924 | so no need for auto-import symbol. */ | |
1925 | } | |
1926 | else | |
1927 | { | |
4b7f0676 NC |
1928 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
1929 | BSF_GLOBAL, 0); | |
c9e38879 | 1930 | if (! exp->flag_data) |
1579bae1 AM |
1931 | quick_symbol (abfd, U (""), exp->internal_name, "", tx, |
1932 | BSF_GLOBAL, 0); | |
1579bae1 AM |
1933 | quick_symbol (abfd, U ("_imp__"), exp->internal_name, "", id5, |
1934 | BSF_GLOBAL, 0); | |
c9e38879 | 1935 | /* Symbol to reference ord/name of imported |
1579bae1 | 1936 | data symbol, used to implement auto-import. */ |
c9e38879 | 1937 | if (exp->flag_data) |
1579bae1 AM |
1938 | quick_symbol (abfd, U("_nm__"), exp->internal_name, "", id6, |
1939 | BSF_GLOBAL,0); | |
c9e38879 | 1940 | } |
870df5dc | 1941 | if (pe_dll_compat_implib) |
1579bae1 AM |
1942 | quick_symbol (abfd, U ("__imp_"), exp->internal_name, "", id5, |
1943 | BSF_GLOBAL, 0); | |
252b5132 | 1944 | |
23a87948 | 1945 | if (! exp->flag_data) |
775cabad NC |
1946 | { |
1947 | bfd_set_section_size (abfd, tx, jmp_byte_count); | |
1579bae1 | 1948 | td = xmalloc (jmp_byte_count); |
775cabad NC |
1949 | tx->contents = td; |
1950 | memcpy (td, jmp_bytes, jmp_byte_count); | |
1951 | ||
1952 | switch (pe_details->pe_arch) | |
1953 | { | |
1954 | case PE_ARCH_i386: | |
1955 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); | |
1956 | break; | |
1957 | case PE_ARCH_sh: | |
1958 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
1959 | break; | |
1960 | case PE_ARCH_mips: | |
1961 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
1962 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
1963 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
1964 | break; | |
53baae48 | 1965 | case PE_ARCH_arm: |
7148cc28 NC |
1966 | case PE_ARCH_arm_epoc: |
1967 | case PE_ARCH_arm_wince: | |
53baae48 NC |
1968 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); |
1969 | break; | |
775cabad NC |
1970 | default: |
1971 | abort (); | |
1972 | } | |
1973 | save_relocs (tx); | |
1974 | } | |
252b5132 RH |
1975 | |
1976 | bfd_set_section_size (abfd, id7, 4); | |
1579bae1 | 1977 | d7 = xmalloc (4); |
252b5132 RH |
1978 | id7->contents = d7; |
1979 | memset (d7, 0, 4); | |
4b7f0676 | 1980 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 5); |
252b5132 RH |
1981 | save_relocs (id7); |
1982 | ||
99ad8390 NC |
1983 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
1984 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 1985 | id5->contents = d5; |
99ad8390 | 1986 | memset (d5, 0, PE_IDATA5_SIZE); |
775cabad | 1987 | |
252b5132 RH |
1988 | if (exp->flag_noname) |
1989 | { | |
1990 | d5[0] = exp->ordinal; | |
1991 | d5[1] = exp->ordinal >> 8; | |
99ad8390 | 1992 | d5[PE_IDATA5_SIZE - 1] = 0x80; |
252b5132 RH |
1993 | } |
1994 | else | |
1995 | { | |
1996 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
1997 | save_relocs (id5); | |
1998 | } | |
1999 | ||
99ad8390 NC |
2000 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
2001 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 2002 | id4->contents = d4; |
99ad8390 | 2003 | memset (d4, 0, PE_IDATA4_SIZE); |
775cabad | 2004 | |
252b5132 RH |
2005 | if (exp->flag_noname) |
2006 | { | |
c2a94a7a DD |
2007 | d4[0] = exp->ordinal; |
2008 | d4[1] = exp->ordinal >> 8; | |
99ad8390 | 2009 | d4[PE_IDATA4_SIZE - 1] = 0x80; |
252b5132 RH |
2010 | } |
2011 | else | |
2012 | { | |
2013 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2014 | save_relocs (id4); | |
2015 | } | |
2016 | ||
2017 | if (exp->flag_noname) | |
2018 | { | |
2019 | len = 0; | |
2020 | bfd_set_section_size (abfd, id6, 0); | |
2021 | } | |
2022 | else | |
2023 | { | |
2024 | len = strlen (exp->name) + 3; | |
2025 | if (len & 1) | |
2026 | len++; | |
2027 | bfd_set_section_size (abfd, id6, len); | |
1579bae1 | 2028 | d6 = xmalloc (len); |
252b5132 RH |
2029 | id6->contents = d6; |
2030 | memset (d6, 0, len); | |
2031 | d6[0] = exp->hint & 0xff; | |
2032 | d6[1] = exp->hint >> 8; | |
47639182 | 2033 | strcpy ((char *) d6 + 2, exp->name); |
252b5132 RH |
2034 | } |
2035 | ||
2036 | bfd_set_symtab (abfd, symtab, symptr); | |
2037 | ||
c6c37250 | 2038 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); |
252b5132 | 2039 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
99ad8390 NC |
2040 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); |
2041 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
252b5132 RH |
2042 | if (!exp->flag_noname) |
2043 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
2044 | ||
2045 | bfd_make_readable (abfd); | |
2046 | return abfd; | |
2047 | } | |
2048 | ||
b044cda1 | 2049 | static bfd * |
1579bae1 | 2050 | make_singleton_name_thunk (const char *import, bfd *parent) |
b044cda1 | 2051 | { |
775cabad | 2052 | /* Name thunks go to idata$4. */ |
b044cda1 CW |
2053 | asection *id4; |
2054 | unsigned char *d4; | |
2055 | char *oname; | |
2056 | bfd *abfd; | |
2057 | ||
1579bae1 | 2058 | oname = xmalloc (20); |
b044cda1 CW |
2059 | sprintf (oname, "nmth%06d.o", tmp_seq); |
2060 | tmp_seq++; | |
2061 | ||
2062 | abfd = bfd_create (oname, parent); | |
2063 | bfd_find_target (pe_details->object_target, abfd); | |
2064 | bfd_make_writable (abfd); | |
2065 | ||
2066 | bfd_set_format (abfd, bfd_object); | |
2067 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2068 | ||
2069 | symptr = 0; | |
1579bae1 | 2070 | symtab = xmalloc (3 * sizeof (asymbol *)); |
b044cda1 CW |
2071 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
2072 | quick_symbol (abfd, U ("_nm_thnk_"), import, "", id4, BSF_GLOBAL, 0); | |
2073 | quick_symbol (abfd, U ("_nm_"), import, "", UNDSEC, BSF_GLOBAL, 0); | |
2074 | ||
99ad8390 NC |
2075 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
2076 | d4 = xmalloc (PE_IDATA4_SIZE); | |
b044cda1 | 2077 | id4->contents = d4; |
99ad8390 | 2078 | memset (d4, 0, PE_IDATA4_SIZE); |
b044cda1 CW |
2079 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
2080 | save_relocs (id4); | |
2081 | ||
2082 | bfd_set_symtab (abfd, symtab, symptr); | |
2083 | ||
99ad8390 | 2084 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); |
b044cda1 CW |
2085 | |
2086 | bfd_make_readable (abfd); | |
2087 | return abfd; | |
2088 | } | |
2089 | ||
2090 | static char * | |
1579bae1 | 2091 | make_import_fixup_mark (arelent *rel) |
b044cda1 | 2092 | { |
775cabad | 2093 | /* We convert reloc to symbol, for later reference. */ |
b044cda1 CW |
2094 | static int counter; |
2095 | static char *fixup_name = NULL; | |
db09f25b | 2096 | static size_t buffer_len = 0; |
b7a26f91 | 2097 | |
fc0a2244 | 2098 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b7a26f91 | 2099 | |
b044cda1 | 2100 | bfd *abfd = bfd_asymbol_bfd (sym); |
fe213ce2 | 2101 | struct bfd_link_hash_entry *bh; |
b044cda1 CW |
2102 | |
2103 | if (!fixup_name) | |
2104 | { | |
1579bae1 | 2105 | fixup_name = xmalloc (384); |
b044cda1 CW |
2106 | buffer_len = 384; |
2107 | } | |
2108 | ||
2109 | if (strlen (sym->name) + 25 > buffer_len) | |
b7a26f91 | 2110 | /* Assume 25 chars for "__fu" + counter + "_". If counter is |
b044cda1 | 2111 | bigger than 20 digits long, we've got worse problems than |
775cabad | 2112 | overflowing this buffer... */ |
b044cda1 CW |
2113 | { |
2114 | free (fixup_name); | |
a35bc64f NC |
2115 | /* New buffer size is length of symbol, plus 25, but |
2116 | then rounded up to the nearest multiple of 128. */ | |
b044cda1 | 2117 | buffer_len = ((strlen (sym->name) + 25) + 127) & ~127; |
1579bae1 | 2118 | fixup_name = xmalloc (buffer_len); |
b044cda1 | 2119 | } |
b7a26f91 | 2120 | |
b044cda1 CW |
2121 | sprintf (fixup_name, "__fu%d_%s", counter++, sym->name); |
2122 | ||
fe213ce2 | 2123 | bh = NULL; |
b7a26f91 | 2124 | bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL, |
b044cda1 | 2125 | current_sec, /* sym->section, */ |
b34976b6 | 2126 | rel->address, NULL, TRUE, FALSE, &bh); |
fe213ce2 | 2127 | |
b044cda1 CW |
2128 | return fixup_name; |
2129 | } | |
2130 | ||
53baae48 | 2131 | /* .section .idata$2 |
775cabad NC |
2132 | .rva __nm_thnk_SYM (singleton thunk with name of func) |
2133 | .long 0 | |
2134 | .long 0 | |
2135 | .rva __my_dll_iname (name of dll) | |
2136 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
b044cda1 CW |
2137 | |
2138 | static bfd * | |
1579bae1 AM |
2139 | make_import_fixup_entry (const char *name, |
2140 | const char *fixup_name, | |
2141 | const char *dll_symname, | |
2142 | bfd *parent) | |
b044cda1 | 2143 | { |
53baae48 NC |
2144 | asection *id2; |
2145 | unsigned char *d2; | |
b044cda1 CW |
2146 | char *oname; |
2147 | bfd *abfd; | |
2148 | ||
1579bae1 | 2149 | oname = xmalloc (20); |
b044cda1 CW |
2150 | sprintf (oname, "fu%06d.o", tmp_seq); |
2151 | tmp_seq++; | |
2152 | ||
2153 | abfd = bfd_create (oname, parent); | |
2154 | bfd_find_target (pe_details->object_target, abfd); | |
2155 | bfd_make_writable (abfd); | |
2156 | ||
2157 | bfd_set_format (abfd, bfd_object); | |
2158 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2159 | ||
2160 | symptr = 0; | |
1579bae1 | 2161 | symtab = xmalloc (6 * sizeof (asymbol *)); |
53baae48 | 2162 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
775cabad | 2163 | |
b044cda1 CW |
2164 | quick_symbol (abfd, U ("_nm_thnk_"), name, "", UNDSEC, BSF_GLOBAL, 0); |
2165 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
2166 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2167 | ||
53baae48 NC |
2168 | bfd_set_section_size (abfd, id2, 20); |
2169 | d2 = xmalloc (20); | |
2170 | id2->contents = d2; | |
2171 | memset (d2, 0, 20); | |
b044cda1 CW |
2172 | |
2173 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2174 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 2); | |
2175 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 3); | |
53baae48 | 2176 | save_relocs (id2); |
b044cda1 CW |
2177 | |
2178 | bfd_set_symtab (abfd, symtab, symptr); | |
2179 | ||
53baae48 | 2180 | bfd_set_section_contents (abfd, id2, d2, 0, 20); |
b044cda1 CW |
2181 | |
2182 | bfd_make_readable (abfd); | |
2183 | return abfd; | |
2184 | } | |
2185 | ||
2fa9fc65 NC |
2186 | /* .section .rdata_runtime_pseudo_reloc |
2187 | .long addend | |
2188 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
2189 | ||
2190 | static bfd * | |
1579bae1 AM |
2191 | make_runtime_pseudo_reloc (const char *name ATTRIBUTE_UNUSED, |
2192 | const char *fixup_name, | |
2193 | int addend, | |
2194 | bfd *parent) | |
2fa9fc65 NC |
2195 | { |
2196 | asection *rt_rel; | |
2197 | unsigned char *rt_rel_d; | |
2198 | char *oname; | |
2199 | bfd *abfd; | |
2200 | ||
1579bae1 | 2201 | oname = xmalloc (20); |
2fa9fc65 NC |
2202 | sprintf (oname, "rtr%06d.o", tmp_seq); |
2203 | tmp_seq++; | |
2204 | ||
2205 | abfd = bfd_create (oname, parent); | |
2206 | bfd_find_target (pe_details->object_target, abfd); | |
2207 | bfd_make_writable (abfd); | |
2208 | ||
2209 | bfd_set_format (abfd, bfd_object); | |
2210 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2211 | ||
2212 | symptr = 0; | |
1579bae1 AM |
2213 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2214 | rt_rel = quick_section (abfd, ".rdata_runtime_pseudo_reloc", | |
2215 | SEC_HAS_CONTENTS, 2); | |
2fa9fc65 NC |
2216 | |
2217 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2218 | ||
2219 | bfd_set_section_size (abfd, rt_rel, 8); | |
1579bae1 | 2220 | rt_rel_d = xmalloc (8); |
2fa9fc65 NC |
2221 | rt_rel->contents = rt_rel_d; |
2222 | memset (rt_rel_d, 0, 8); | |
2223 | bfd_put_32 (abfd, addend, rt_rel_d); | |
2224 | ||
2225 | quick_reloc (abfd, 4, BFD_RELOC_RVA, 1); | |
2226 | save_relocs (rt_rel); | |
2227 | ||
2228 | bfd_set_symtab (abfd, symtab, symptr); | |
2229 | ||
2230 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, 8); | |
2231 | ||
2232 | bfd_make_readable (abfd); | |
2233 | return abfd; | |
2234 | } | |
2235 | ||
2236 | /* .section .rdata | |
a35bc64f | 2237 | .rva __pei386_runtime_relocator */ |
2fa9fc65 NC |
2238 | |
2239 | static bfd * | |
1579bae1 | 2240 | pe_create_runtime_relocator_reference (bfd *parent) |
2fa9fc65 NC |
2241 | { |
2242 | asection *extern_rt_rel; | |
2243 | unsigned char *extern_rt_rel_d; | |
2244 | char *oname; | |
2245 | bfd *abfd; | |
2246 | ||
1579bae1 | 2247 | oname = xmalloc (20); |
2fa9fc65 NC |
2248 | sprintf (oname, "ertr%06d.o", tmp_seq); |
2249 | tmp_seq++; | |
2250 | ||
2251 | abfd = bfd_create (oname, parent); | |
2252 | bfd_find_target (pe_details->object_target, abfd); | |
2253 | bfd_make_writable (abfd); | |
2254 | ||
2255 | bfd_set_format (abfd, bfd_object); | |
2256 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2257 | ||
2258 | symptr = 0; | |
1579bae1 | 2259 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2fa9fc65 NC |
2260 | extern_rt_rel = quick_section (abfd, ".rdata", SEC_HAS_CONTENTS, 2); |
2261 | ||
1579bae1 AM |
2262 | quick_symbol (abfd, "", "__pei386_runtime_relocator", "", UNDSEC, |
2263 | BSF_NO_FLAGS, 0); | |
2fa9fc65 NC |
2264 | |
2265 | bfd_set_section_size (abfd, extern_rt_rel, 4); | |
1579bae1 | 2266 | extern_rt_rel_d = xmalloc (4); |
2fa9fc65 NC |
2267 | extern_rt_rel->contents = extern_rt_rel_d; |
2268 | ||
2269 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2270 | save_relocs (extern_rt_rel); | |
2271 | ||
2272 | bfd_set_symtab (abfd, symtab, symptr); | |
2273 | ||
2274 | bfd_set_section_contents (abfd, extern_rt_rel, extern_rt_rel_d, 0, 4); | |
2275 | ||
2276 | bfd_make_readable (abfd); | |
2277 | return abfd; | |
2278 | } | |
2279 | ||
b044cda1 | 2280 | void |
1579bae1 | 2281 | pe_create_import_fixup (arelent *rel, asection *s, int addend) |
b044cda1 CW |
2282 | { |
2283 | char buf[300]; | |
fc0a2244 | 2284 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b044cda1 | 2285 | struct bfd_link_hash_entry *name_thunk_sym; |
db09f25b | 2286 | const char *name = sym->name; |
b044cda1 | 2287 | char *fixup_name = make_import_fixup_mark (rel); |
2fa9fc65 | 2288 | bfd *b; |
b044cda1 CW |
2289 | |
2290 | sprintf (buf, U ("_nm_thnk_%s"), name); | |
2291 | ||
2292 | name_thunk_sym = bfd_link_hash_lookup (link_info.hash, buf, 0, 0, 1); | |
2293 | ||
2294 | if (!name_thunk_sym || name_thunk_sym->type != bfd_link_hash_defined) | |
2295 | { | |
2296 | bfd *b = make_singleton_name_thunk (name, output_bfd); | |
2297 | add_bfd_to_link (b, b->filename, &link_info); | |
2298 | ||
775cabad | 2299 | /* If we ever use autoimport, we have to cast text section writable. */ |
b34976b6 | 2300 | config.text_read_only = FALSE; |
4d8907ac | 2301 | output_bfd->flags &= ~WP_TEXT; |
b044cda1 CW |
2302 | } |
2303 | ||
2fa9fc65 NC |
2304 | if (addend == 0 || link_info.pei386_runtime_pseudo_reloc) |
2305 | { | |
2306 | extern char * pe_data_import_dll; | |
2307 | char * dll_symname = pe_data_import_dll ? pe_data_import_dll : "unknown"; | |
aa3d9aba | 2308 | |
2fa9fc65 NC |
2309 | b = make_import_fixup_entry (name, fixup_name, dll_symname, output_bfd); |
2310 | add_bfd_to_link (b, b->filename, &link_info); | |
2311 | } | |
2312 | ||
2313 | if (addend != 0) | |
2314 | { | |
2315 | if (link_info.pei386_runtime_pseudo_reloc) | |
2316 | { | |
2317 | if (pe_dll_extra_pe_debug) | |
2318 | printf ("creating runtime pseudo-reloc entry for %s (addend=%d)\n", | |
2319 | fixup_name, addend); | |
2320 | b = make_runtime_pseudo_reloc (name, fixup_name, addend, output_bfd); | |
2321 | add_bfd_to_link (b, b->filename, &link_info); | |
2322 | ||
2323 | if (runtime_pseudo_relocs_created == 0) | |
2324 | { | |
2325 | b = pe_create_runtime_relocator_reference (output_bfd); | |
2326 | add_bfd_to_link (b, b->filename, &link_info); | |
2327 | } | |
2328 | runtime_pseudo_relocs_created++; | |
b34976b6 | 2329 | } |
2fa9fc65 NC |
2330 | else |
2331 | { | |
2332 | einfo (_("%C: variable '%T' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.\n"), | |
2333 | s->owner, s, rel->address, sym->name); | |
2334 | einfo ("%X"); | |
2335 | } | |
2336 | } | |
b044cda1 CW |
2337 | } |
2338 | ||
2339 | ||
252b5132 | 2340 | void |
1579bae1 | 2341 | pe_dll_generate_implib (def_file *def, const char *impfilename) |
252b5132 RH |
2342 | { |
2343 | int i; | |
2344 | bfd *ar_head; | |
2345 | bfd *ar_tail; | |
2346 | bfd *outarch; | |
2347 | bfd *head = 0; | |
2348 | ||
5aaace27 | 2349 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 | 2350 | dll_symname = xstrdup (dll_filename); |
d643799d | 2351 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2352 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2353 | dll_symname[i] = '_'; |
2354 | ||
bb14f524 | 2355 | unlink_if_ordinary (impfilename); |
252b5132 RH |
2356 | |
2357 | outarch = bfd_openw (impfilename, 0); | |
2358 | ||
2359 | if (!outarch) | |
2360 | { | |
2361 | /* xgettext:c-format */ | |
2362 | einfo (_("%XCan't open .lib file: %s\n"), impfilename); | |
2363 | return; | |
2364 | } | |
2365 | ||
2366 | /* xgettext:c-format */ | |
63d85248 NC |
2367 | info_msg (_("Creating library file: %s\n"), impfilename); |
2368 | ||
252b5132 RH |
2369 | bfd_set_format (outarch, bfd_archive); |
2370 | outarch->has_armap = 1; | |
2371 | ||
5cc18311 | 2372 | /* Work out a reasonable size of things to put onto one line. */ |
252b5132 | 2373 | ar_head = make_head (outarch); |
252b5132 | 2374 | |
d643799d | 2375 | for (i = 0; i < def->num_exports; i++) |
252b5132 | 2376 | { |
86b1cc60 | 2377 | /* The import library doesn't know about the internal name. */ |
252b5132 RH |
2378 | char *internal = def->exports[i].internal_name; |
2379 | bfd *n; | |
775cabad | 2380 | |
ee31fbd0 NC |
2381 | /* Don't add PRIVATE entries to import lib. */ |
2382 | if (pe_def_file->exports[i].flag_private) | |
2383 | continue; | |
252b5132 | 2384 | def->exports[i].internal_name = def->exports[i].name; |
d643799d | 2385 | n = make_one (def->exports + i, outarch); |
252b5132 RH |
2386 | n->next = head; |
2387 | head = n; | |
2388 | def->exports[i].internal_name = internal; | |
2389 | } | |
2390 | ||
c6c37250 DD |
2391 | ar_tail = make_tail (outarch); |
2392 | ||
2393 | if (ar_head == NULL || ar_tail == NULL) | |
2394 | return; | |
2395 | ||
86b1cc60 | 2396 | /* Now stick them all into the archive. */ |
252b5132 RH |
2397 | ar_head->next = head; |
2398 | ar_tail->next = ar_head; | |
2399 | head = ar_tail; | |
2400 | ||
2401 | if (! bfd_set_archive_head (outarch, head)) | |
36230712 | 2402 | einfo ("%Xbfd_set_archive_head: %E\n"); |
5cc18311 | 2403 | |
252b5132 | 2404 | if (! bfd_close (outarch)) |
36230712 | 2405 | einfo ("%Xbfd_close %s: %E\n", impfilename); |
252b5132 RH |
2406 | |
2407 | while (head != NULL) | |
2408 | { | |
2409 | bfd *n = head->next; | |
2410 | bfd_close (head); | |
2411 | head = n; | |
2412 | } | |
2413 | } | |
2414 | ||
2415 | static void | |
1579bae1 | 2416 | add_bfd_to_link (bfd *abfd, const char *name, struct bfd_link_info *link_info) |
252b5132 RH |
2417 | { |
2418 | lang_input_statement_type *fake_file; | |
775cabad | 2419 | |
252b5132 RH |
2420 | fake_file = lang_add_input_file (name, |
2421 | lang_input_file_is_fake_enum, | |
2422 | NULL); | |
2423 | fake_file->the_bfd = abfd; | |
2424 | ldlang_add_file (fake_file); | |
775cabad | 2425 | |
252b5132 | 2426 | if (!bfd_link_add_symbols (abfd, link_info)) |
36230712 | 2427 | einfo ("%Xaddsym %s: %E\n", name); |
252b5132 RH |
2428 | } |
2429 | ||
2430 | void | |
1579bae1 | 2431 | pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *link_info) |
252b5132 RH |
2432 | { |
2433 | def_file_module *module; | |
775cabad | 2434 | |
d643799d | 2435 | pe_dll_id_target (bfd_get_target (output_bfd)); |
252b5132 RH |
2436 | |
2437 | if (!pe_def_file) | |
2438 | return; | |
2439 | ||
2440 | for (module = pe_def_file->modules; module; module = module->next) | |
2441 | { | |
2442 | int i, do_this_dll; | |
2443 | ||
2444 | dll_filename = module->name; | |
2445 | dll_symname = xstrdup (module->name); | |
d643799d | 2446 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2447 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2448 | dll_symname[i] = '_'; |
2449 | ||
2450 | do_this_dll = 0; | |
2451 | ||
d643799d | 2452 | for (i = 0; i < pe_def_file->num_imports; i++) |
252b5132 RH |
2453 | if (pe_def_file->imports[i].module == module) |
2454 | { | |
2455 | def_file_export exp; | |
2456 | struct bfd_link_hash_entry *blhe; | |
b34976b6 | 2457 | int lead_at = (*pe_def_file->imports[i].internal_name == '@'); |
86b1cc60 | 2458 | /* See if we need this import. */ |
1579bae1 AM |
2459 | size_t len = strlen (pe_def_file->imports[i].internal_name); |
2460 | char *name = xmalloc (len + 2 + 6); | |
c9e38879 NC |
2461 | |
2462 | if (lead_at) | |
1579bae1 AM |
2463 | sprintf (name, "%s%s", "", |
2464 | pe_def_file->imports[i].internal_name); | |
c9e38879 | 2465 | else |
1579bae1 AM |
2466 | sprintf (name, "%s%s",U (""), |
2467 | pe_def_file->imports[i].internal_name); | |
c9e38879 | 2468 | |
252b5132 | 2469 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
b34976b6 | 2470 | FALSE, FALSE, FALSE); |
c9e38879 | 2471 | |
874c8c99 DD |
2472 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) |
2473 | { | |
c9e38879 NC |
2474 | if (lead_at) |
2475 | sprintf (name, "%s%s", U ("_imp_"), | |
2476 | pe_def_file->imports[i].internal_name); | |
2477 | else | |
2478 | sprintf (name, "%s%s", U ("_imp__"), | |
2479 | pe_def_file->imports[i].internal_name); | |
2480 | ||
874c8c99 | 2481 | blhe = bfd_link_hash_lookup (link_info->hash, name, |
b34976b6 | 2482 | FALSE, FALSE, FALSE); |
874c8c99 | 2483 | } |
252b5132 | 2484 | free (name); |
c9e38879 | 2485 | |
252b5132 RH |
2486 | if (blhe && blhe->type == bfd_link_hash_undefined) |
2487 | { | |
2488 | bfd *one; | |
86b1cc60 | 2489 | /* We do. */ |
252b5132 RH |
2490 | if (!do_this_dll) |
2491 | { | |
2492 | bfd *ar_head = make_head (output_bfd); | |
2493 | add_bfd_to_link (ar_head, ar_head->filename, link_info); | |
2494 | do_this_dll = 1; | |
2495 | } | |
2496 | exp.internal_name = pe_def_file->imports[i].internal_name; | |
2497 | exp.name = pe_def_file->imports[i].name; | |
2498 | exp.ordinal = pe_def_file->imports[i].ordinal; | |
2499 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
2500 | exp.flag_private = 0; | |
2501 | exp.flag_constant = 0; | |
939ba9d0 | 2502 | exp.flag_data = pe_def_file->imports[i].data; |
252b5132 RH |
2503 | exp.flag_noname = exp.name ? 0 : 1; |
2504 | one = make_one (&exp, output_bfd); | |
2505 | add_bfd_to_link (one, one->filename, link_info); | |
2506 | } | |
2507 | } | |
2508 | if (do_this_dll) | |
2509 | { | |
2510 | bfd *ar_tail = make_tail (output_bfd); | |
2511 | add_bfd_to_link (ar_tail, ar_tail->filename, link_info); | |
2512 | } | |
2513 | ||
2514 | free (dll_symname); | |
2515 | } | |
2516 | } | |
2517 | ||
775cabad | 2518 | /* We were handed a *.DLL file. Parse it and turn it into a set of |
b34976b6 AM |
2519 | IMPORTS directives in the def file. Return TRUE if the file was |
2520 | handled, FALSE if not. */ | |
252b5132 RH |
2521 | |
2522 | static unsigned int | |
1579bae1 | 2523 | pe_get16 (bfd *abfd, int where) |
252b5132 RH |
2524 | { |
2525 | unsigned char b[2]; | |
775cabad | 2526 | |
db09f25b AM |
2527 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2528 | bfd_bread (b, (bfd_size_type) 2, abfd); | |
d643799d | 2529 | return b[0] + (b[1] << 8); |
252b5132 RH |
2530 | } |
2531 | ||
2532 | static unsigned int | |
1579bae1 | 2533 | pe_get32 (bfd *abfd, int where) |
252b5132 RH |
2534 | { |
2535 | unsigned char b[4]; | |
775cabad | 2536 | |
db09f25b AM |
2537 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
2538 | bfd_bread (b, (bfd_size_type) 4, abfd); | |
d643799d | 2539 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2540 | } |
2541 | ||
252b5132 | 2542 | static unsigned int |
1579bae1 | 2543 | pe_as32 (void *ptr) |
252b5132 RH |
2544 | { |
2545 | unsigned char *b = ptr; | |
775cabad | 2546 | |
d643799d | 2547 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
2548 | } |
2549 | ||
b34976b6 | 2550 | bfd_boolean |
1579bae1 | 2551 | pe_implied_import_dll (const char *filename) |
252b5132 RH |
2552 | { |
2553 | bfd *dll; | |
2554 | unsigned long pe_header_offset, opthdr_ofs, num_entries, i; | |
2555 | unsigned long export_rva, export_size, nsections, secptr, expptr; | |
939ba9d0 | 2556 | unsigned long exp_funcbase; |
47639182 AM |
2557 | unsigned char *expdata; |
2558 | char *erva; | |
252b5132 | 2559 | unsigned long name_rvas, ordinals, nexp, ordbase; |
1069dd8d | 2560 | const char *dll_name; |
939ba9d0 NC |
2561 | /* Initialization with start > end guarantees that is_data |
2562 | will not be set by mistake, and avoids compiler warning. */ | |
2563 | unsigned long data_start = 1; | |
661a32f7 DS |
2564 | unsigned long data_end = 0; |
2565 | unsigned long rdata_start = 1; | |
2566 | unsigned long rdata_end = 0; | |
2567 | unsigned long bss_start = 1; | |
2568 | unsigned long bss_end = 0; | |
252b5132 RH |
2569 | |
2570 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
5cc18311 | 2571 | the middle of the .rdata section. */ |
c6c37250 | 2572 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
2573 | if (!dll) |
2574 | { | |
36230712 | 2575 | einfo ("%Xopen %s: %E\n", filename); |
b34976b6 | 2576 | return FALSE; |
252b5132 | 2577 | } |
775cabad | 2578 | |
86b1cc60 | 2579 | /* PEI dlls seem to be bfd_objects. */ |
252b5132 RH |
2580 | if (!bfd_check_format (dll, bfd_object)) |
2581 | { | |
2582 | einfo ("%X%s: this doesn't appear to be a DLL\n", filename); | |
b34976b6 | 2583 | return FALSE; |
252b5132 RH |
2584 | } |
2585 | ||
939ba9d0 | 2586 | /* Get pe_header, optional header and numbers of export entries. */ |
252b5132 RH |
2587 | pe_header_offset = pe_get32 (dll, 0x3c); |
2588 | opthdr_ofs = pe_header_offset + 4 + 20; | |
99ad8390 NC |
2589 | #ifdef pe_use_x86_64 |
2590 | num_entries = pe_get32 (dll, opthdr_ofs + 92 + 4 * 4); /* & NumberOfRvaAndSizes. */ | |
2591 | #else | |
252b5132 | 2592 | num_entries = pe_get32 (dll, opthdr_ofs + 92); |
99ad8390 | 2593 | #endif |
775cabad NC |
2594 | |
2595 | if (num_entries < 1) /* No exports. */ | |
b34976b6 | 2596 | return FALSE; |
775cabad | 2597 | |
99ad8390 NC |
2598 | #ifdef pe_use_x86_64 |
2599 | export_rva = pe_get32 (dll, opthdr_ofs + 96 + 4 * 4); | |
2600 | export_size = pe_get32 (dll, opthdr_ofs + 100 + 4 * 4); | |
2601 | #else | |
252b5132 RH |
2602 | export_rva = pe_get32 (dll, opthdr_ofs + 96); |
2603 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
99ad8390 NC |
2604 | #endif |
2605 | ||
252b5132 RH |
2606 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); |
2607 | secptr = (pe_header_offset + 4 + 20 + | |
2608 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
2609 | expptr = 0; | |
775cabad | 2610 | |
1579bae1 | 2611 | /* Get the rva and size of the export section. */ |
d643799d | 2612 | for (i = 0; i < nsections; i++) |
252b5132 RH |
2613 | { |
2614 | char sname[8]; | |
2615 | unsigned long secptr1 = secptr + 40 * i; | |
2616 | unsigned long vaddr = pe_get32 (dll, secptr1 + 12); | |
2617 | unsigned long vsize = pe_get32 (dll, secptr1 + 16); | |
2618 | unsigned long fptr = pe_get32 (dll, secptr1 + 20); | |
775cabad | 2619 | |
db09f25b AM |
2620 | bfd_seek (dll, (file_ptr) secptr1, SEEK_SET); |
2621 | bfd_bread (sname, (bfd_size_type) 8, dll); | |
775cabad | 2622 | |
d643799d | 2623 | if (vaddr <= export_rva && vaddr + vsize > export_rva) |
252b5132 RH |
2624 | { |
2625 | expptr = fptr + (export_rva - vaddr); | |
2626 | if (export_rva + export_size > vaddr + vsize) | |
2627 | export_size = vsize - (export_rva - vaddr); | |
2628 | break; | |
2629 | } | |
2630 | } | |
2631 | ||
939ba9d0 | 2632 | /* Scan sections and store the base and size of the |
1579bae1 | 2633 | data and bss segments in data/base_start/end. */ |
939ba9d0 NC |
2634 | for (i = 0; i < nsections; i++) |
2635 | { | |
2636 | unsigned long secptr1 = secptr + 40 * i; | |
2637 | unsigned long vsize = pe_get32 (dll, secptr1 + 8); | |
2638 | unsigned long vaddr = pe_get32 (dll, secptr1 + 12); | |
2639 | unsigned long flags = pe_get32 (dll, secptr1 + 36); | |
2640 | char sec_name[9]; | |
2641 | ||
2642 | sec_name[8] = '\0'; | |
2643 | bfd_seek (dll, (file_ptr) secptr1 + 0, SEEK_SET); | |
2644 | bfd_bread (sec_name, (bfd_size_type) 8, dll); | |
2645 | ||
2646 | if (strcmp(sec_name,".data") == 0) | |
2647 | { | |
2648 | data_start = vaddr; | |
2649 | data_end = vaddr + vsize; | |
2650 | ||
661a32f7 DS |
2651 | if (pe_dll_extra_pe_debug) |
2652 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
2653 | __FUNCTION__, sec_name, vaddr, vaddr + vsize, flags); | |
2654 | } | |
2655 | else if (strcmp(sec_name,".rdata") == 0) | |
2656 | { | |
2657 | rdata_start = vaddr; | |
2658 | rdata_end = vaddr + vsize; | |
2659 | ||
939ba9d0 NC |
2660 | if (pe_dll_extra_pe_debug) |
2661 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
2662 | __FUNCTION__, sec_name, vaddr, vaddr + vsize, flags); | |
1579bae1 | 2663 | } |
939ba9d0 NC |
2664 | else if (strcmp (sec_name,".bss") == 0) |
2665 | { | |
2666 | bss_start = vaddr; | |
2667 | bss_end = vaddr + vsize; | |
2668 | ||
2669 | if (pe_dll_extra_pe_debug) | |
2670 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
2671 | __FUNCTION__, sec_name, vaddr, vaddr + vsize, flags); | |
2672 | } | |
2673 | } | |
2674 | ||
1579bae1 | 2675 | expdata = xmalloc (export_size); |
db09f25b AM |
2676 | bfd_seek (dll, (file_ptr) expptr, SEEK_SET); |
2677 | bfd_bread (expdata, (bfd_size_type) export_size, dll); | |
47639182 | 2678 | erva = (char *) expdata - export_rva; |
252b5132 RH |
2679 | |
2680 | if (pe_def_file == 0) | |
d643799d | 2681 | pe_def_file = def_file_empty (); |
252b5132 | 2682 | |
d643799d KH |
2683 | nexp = pe_as32 (expdata + 24); |
2684 | name_rvas = pe_as32 (expdata + 32); | |
2685 | ordinals = pe_as32 (expdata + 36); | |
2686 | ordbase = pe_as32 (expdata + 16); | |
939ba9d0 | 2687 | exp_funcbase = pe_as32 (expdata + 28); |
775cabad | 2688 | |
939ba9d0 NC |
2689 | /* Use internal dll name instead of filename |
2690 | to enable symbolic dll linking. */ | |
47639182 | 2691 | dll_name = erva + pe_as32 (expdata + 12); |
939ba9d0 | 2692 | |
a35bc64f NC |
2693 | /* Check to see if the dll has already been added to |
2694 | the definition list and if so return without error. | |
2695 | This avoids multiple symbol definitions. */ | |
2696 | if (def_get_module (pe_def_file, dll_name)) | |
2697 | { | |
2698 | if (pe_dll_extra_pe_debug) | |
2699 | printf ("%s is already loaded\n", dll_name); | |
2700 | return TRUE; | |
2701 | } | |
2702 | ||
939ba9d0 | 2703 | /* Iterate through the list of symbols. */ |
d643799d | 2704 | for (i = 0; i < nexp; i++) |
252b5132 | 2705 | { |
939ba9d0 | 2706 | /* Pointer to the names vector. */ |
d643799d | 2707 | unsigned long name_rva = pe_as32 (erva + name_rvas + i * 4); |
252b5132 | 2708 | def_file_import *imp; |
1579bae1 | 2709 | /* Pointer to the function address vector. */ |
939ba9d0 NC |
2710 | unsigned long func_rva = pe_as32 (erva + exp_funcbase + i * 4); |
2711 | int is_data = 0; | |
2712 | ||
2713 | /* Skip unwanted symbols, which are | |
2714 | exported in buggy auto-import releases. */ | |
0112cd26 | 2715 | if (! CONST_STRNEQ (erva + name_rva, "_nm_")) |
939ba9d0 | 2716 | { |
661a32f7 DS |
2717 | /* is_data is true if the address is in the data, rdata or bss |
2718 | segment. */ | |
939ba9d0 NC |
2719 | is_data = |
2720 | (func_rva >= data_start && func_rva < data_end) | |
661a32f7 | 2721 | || (func_rva >= rdata_start && func_rva < rdata_end) |
939ba9d0 NC |
2722 | || (func_rva >= bss_start && func_rva < bss_end); |
2723 | ||
2724 | imp = def_file_add_import (pe_def_file, erva + name_rva, | |
2725 | dll_name, i, 0); | |
396a2467 | 2726 | /* Mark symbol type. */ |
939ba9d0 | 2727 | imp->data = is_data; |
1579bae1 | 2728 | |
939ba9d0 NC |
2729 | if (pe_dll_extra_pe_debug) |
2730 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", | |
2731 | __FUNCTION__, dll_name, erva + name_rva, | |
2732 | func_rva, is_data ? "(data)" : ""); | |
2733 | } | |
252b5132 RH |
2734 | } |
2735 | ||
b34976b6 | 2736 | return TRUE; |
252b5132 RH |
2737 | } |
2738 | ||
775cabad NC |
2739 | /* These are the main functions, called from the emulation. The first |
2740 | is called after the bfds are read, so we can guess at how much space | |
2741 | we need. The second is called after everything is placed, so we | |
2742 | can put the right values in place. */ | |
252b5132 RH |
2743 | |
2744 | void | |
1579bae1 | 2745 | pe_dll_build_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 2746 | { |
c6c37250 | 2747 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
2748 | process_def_file (abfd, info); |
2749 | ||
1579bae1 | 2750 | if (pe_def_file->num_exports == 0 && !info->shared) |
2b817be1 NC |
2751 | return; |
2752 | ||
252b5132 | 2753 | generate_edata (abfd, info); |
c6c37250 DD |
2754 | build_filler_bfd (1); |
2755 | } | |
2756 | ||
2757 | void | |
1579bae1 | 2758 | pe_exe_build_sections (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
c6c37250 DD |
2759 | { |
2760 | pe_dll_id_target (bfd_get_target (abfd)); | |
2761 | build_filler_bfd (0); | |
252b5132 RH |
2762 | } |
2763 | ||
2764 | void | |
1579bae1 | 2765 | pe_dll_fill_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 2766 | { |
c6c37250 | 2767 | pe_dll_id_target (bfd_get_target (abfd)); |
252b5132 RH |
2768 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
2769 | ||
2770 | generate_reloc (abfd, info); | |
2771 | if (reloc_sz > 0) | |
2772 | { | |
2773 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
2774 | ||
2775 | /* Resize the sections. */ | |
38975f9e | 2776 | lang_reset_memory_regions (); |
e9ee469a | 2777 | lang_size_sections (NULL, TRUE); |
252b5132 RH |
2778 | |
2779 | /* Redo special stuff. */ | |
2780 | ldemul_after_allocation (); | |
2781 | ||
2782 | /* Do the assignments again. */ | |
e9ee469a | 2783 | lang_do_assignments (); |
252b5132 RH |
2784 | } |
2785 | ||
2786 | fill_edata (abfd, info); | |
2787 | ||
db8acf26 | 2788 | if (info->shared && !info->pie) |
2b817be1 | 2789 | pe_data (abfd)->dll = 1; |
252b5132 RH |
2790 | |
2791 | edata_s->contents = edata_d; | |
2792 | reloc_s->contents = reloc_d; | |
2793 | } | |
c6c37250 DD |
2794 | |
2795 | void | |
1579bae1 | 2796 | pe_exe_fill_sections (bfd *abfd, struct bfd_link_info *info) |
c6c37250 DD |
2797 | { |
2798 | pe_dll_id_target (bfd_get_target (abfd)); | |
2799 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; | |
2800 | ||
2801 | generate_reloc (abfd, info); | |
2802 | if (reloc_sz > 0) | |
2803 | { | |
2804 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
2805 | ||
2806 | /* Resize the sections. */ | |
38975f9e | 2807 | lang_reset_memory_regions (); |
e9ee469a | 2808 | lang_size_sections (NULL, TRUE); |
c6c37250 DD |
2809 | |
2810 | /* Redo special stuff. */ | |
2811 | ldemul_after_allocation (); | |
2812 | ||
2813 | /* Do the assignments again. */ | |
e9ee469a | 2814 | lang_do_assignments (); |
c6c37250 DD |
2815 | } |
2816 | reloc_s->contents = reloc_d; | |
2817 | } |