Commit | Line | Data |
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252b5132 | 1 | /* Routines to help build PEI-format DLLs (Win32 etc) |
2571583a | 2 | Copyright (C) 1998-2017 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by DJ Delorie <dj@cygnus.com> |
4 | ||
f96b4a7b | 5 | This file is part of the GNU Binutils. |
252b5132 | 6 | |
f96b4a7b | 7 | This program is free software; you can redistribute it and/or modify |
252b5132 | 8 | it under the terms of the GNU General Public License as published by |
f96b4a7b NC |
9 | the Free Software Foundation; either version 3 of the License, or |
10 | (at your option) any later version. | |
252b5132 | 11 | |
f96b4a7b | 12 | This program is distributed in the hope that it will be useful, |
252b5132 RH |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
f96b4a7b NC |
18 | along with this program; if not, write to the Free Software |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
20 | MA 02110-1301, USA. */ | |
252b5132 | 21 | |
252b5132 | 22 | #include "sysdep.h" |
3db64b00 | 23 | #include "bfd.h" |
252b5132 RH |
24 | #include "bfdlink.h" |
25 | #include "libiberty.h" | |
42627821 | 26 | #include "filenames.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 | |
00479ba8 | 126 | containing imported name. Here comes that "on the edge" problem mentioned |
775cabad NC |
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, |
370dfff4 | 131 | OS loader implemented the sane way: it goes through OriginalFirstThunk and |
775cabad NC |
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 | 151 | int pe_dll_export_everything = 0; |
2927aaca | 152 | int pe_dll_exclude_all_symbols = 0; |
252b5132 RH |
153 | int pe_dll_do_default_excludes = 1; |
154 | int pe_dll_kill_ats = 0; | |
155 | int pe_dll_stdcall_aliases = 0; | |
870df5dc NC |
156 | int pe_dll_warn_dup_exports = 0; |
157 | int pe_dll_compat_implib = 0; | |
b044cda1 | 158 | int pe_dll_extra_pe_debug = 0; |
ce11ba6c | 159 | int pe_use_nul_prefixed_import_tables = 0; |
88183869 | 160 | int pe_use_coff_long_section_names = -1; |
522f09cd | 161 | int pe_leading_underscore = -1; |
252b5132 | 162 | |
775cabad | 163 | /* Static variables and types. */ |
252b5132 RH |
164 | |
165 | static bfd_vma image_base; | |
252b5132 | 166 | static bfd *filler_bfd; |
198beae2 | 167 | static struct bfd_section *edata_s, *reloc_s; |
252b5132 | 168 | static unsigned char *edata_d, *reloc_d; |
1069dd8d | 169 | static size_t edata_sz, reloc_sz; |
2fa9fc65 | 170 | static int runtime_pseudo_relocs_created = 0; |
6cb442d3 | 171 | static int runtime_pseudp_reloc_v2_init = 0; |
252b5132 | 172 | |
775cabad | 173 | typedef struct |
5b8273bf | 174 | { |
e916811a | 175 | const char *name; |
5b8273bf NC |
176 | int len; |
177 | } | |
178 | autofilter_entry_type; | |
775cabad NC |
179 | |
180 | typedef struct | |
5b8273bf | 181 | { |
e916811a CF |
182 | const char *target_name; |
183 | const char *object_target; | |
5b8273bf NC |
184 | unsigned int imagebase_reloc; |
185 | int pe_arch; | |
186 | int bfd_arch; | |
187 | bfd_boolean underscored; | |
1b610c93 | 188 | const autofilter_entry_type* autofilter_symbollist; |
5b8273bf NC |
189 | } |
190 | pe_details_type; | |
191 | ||
e916811a | 192 | static const autofilter_entry_type autofilter_symbollist_generic[] = |
5b8273bf | 193 | { |
b92216aa | 194 | { STRING_COMMA_LEN ("_NULL_IMPORT_DESCRIPTOR") }, |
5b8273bf | 195 | /* Entry point symbols. */ |
0112cd26 NC |
196 | { STRING_COMMA_LEN ("DllMain") }, |
197 | { STRING_COMMA_LEN ("DllMainCRTStartup") }, | |
198 | { STRING_COMMA_LEN ("_DllMainCRTStartup") }, | |
5b8273bf | 199 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
200 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
201 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
db86b2dc | 202 | { NULL, 0 } |
5b8273bf NC |
203 | }; |
204 | ||
e916811a | 205 | static const autofilter_entry_type autofilter_symbollist_i386[] = |
5b8273bf | 206 | { |
b92216aa | 207 | { STRING_COMMA_LEN ("_NULL_IMPORT_DESCRIPTOR") }, |
5b8273bf | 208 | /* Entry point symbols, and entry hooks. */ |
0112cd26 | 209 | { STRING_COMMA_LEN ("cygwin_crt0") }, |
880383ca NC |
210 | #ifdef pe_use_x86_64 |
211 | { STRING_COMMA_LEN ("DllMain") }, | |
212 | { STRING_COMMA_LEN ("DllEntryPoint") }, | |
213 | { STRING_COMMA_LEN ("DllMainCRTStartup") }, | |
214 | { STRING_COMMA_LEN ("_cygwin_dll_entry") }, | |
215 | { STRING_COMMA_LEN ("_cygwin_crt0_common") }, | |
216 | { STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry") }, | |
217 | #else | |
0112cd26 NC |
218 | { STRING_COMMA_LEN ("DllMain@12") }, |
219 | { STRING_COMMA_LEN ("DllEntryPoint@0") }, | |
220 | { STRING_COMMA_LEN ("DllMainCRTStartup@12") }, | |
221 | { STRING_COMMA_LEN ("_cygwin_dll_entry@12") }, | |
222 | { STRING_COMMA_LEN ("_cygwin_crt0_common@8") }, | |
223 | { STRING_COMMA_LEN ("_cygwin_noncygwin_dll_entry@12") }, | |
224 | { STRING_COMMA_LEN ("cygwin_attach_dll") }, | |
1b610c93 | 225 | #endif |
0112cd26 NC |
226 | { STRING_COMMA_LEN ("cygwin_premain0") }, |
227 | { STRING_COMMA_LEN ("cygwin_premain1") }, | |
228 | { STRING_COMMA_LEN ("cygwin_premain2") }, | |
229 | { STRING_COMMA_LEN ("cygwin_premain3") }, | |
5b8273bf | 230 | /* Runtime pseudo-reloc. */ |
0112cd26 NC |
231 | { STRING_COMMA_LEN ("_pei386_runtime_relocator") }, |
232 | { STRING_COMMA_LEN ("do_pseudo_reloc") }, | |
5b8273bf | 233 | /* Global vars that should not be exported. */ |
0112cd26 NC |
234 | { STRING_COMMA_LEN ("impure_ptr") }, |
235 | { STRING_COMMA_LEN ("_impure_ptr") }, | |
236 | { STRING_COMMA_LEN ("_fmode") }, | |
237 | { STRING_COMMA_LEN ("environ") }, | |
63e1777c | 238 | { STRING_COMMA_LEN ("__dso_handle") }, |
db86b2dc | 239 | { NULL, 0 } |
5b8273bf | 240 | }; |
b044cda1 | 241 | |
5b8273bf NC |
242 | #define PE_ARCH_i386 1 |
243 | #define PE_ARCH_sh 2 | |
244 | #define PE_ARCH_mips 3 | |
245 | #define PE_ARCH_arm 4 | |
775cabad | 246 | #define PE_ARCH_arm_epoc 5 |
7148cc28 | 247 | #define PE_ARCH_arm_wince 6 |
c6c37250 | 248 | |
522f09cd KT |
249 | /* Don't make it constant as underscore mode gets possibly overriden |
250 | by target or -(no-)leading-underscore option. */ | |
251 | static pe_details_type pe_detail_list[] = | |
775cabad | 252 | { |
c6c37250 | 253 | { |
99ad8390 NC |
254 | #ifdef pe_use_x86_64 |
255 | "pei-x86-64", | |
256 | "pe-x86-64", | |
257 | 3 /* R_IMAGEBASE */, | |
258 | #else | |
c6c37250 DD |
259 | "pei-i386", |
260 | "pe-i386", | |
261 | 7 /* R_IMAGEBASE */, | |
99ad8390 | 262 | #endif |
c6c37250 DD |
263 | PE_ARCH_i386, |
264 | bfd_arch_i386, | |
d74720d2 KT |
265 | #ifdef pe_use_x86_64 |
266 | FALSE, | |
267 | #else | |
5b8273bf | 268 | TRUE, |
d74720d2 | 269 | #endif |
5b8273bf | 270 | autofilter_symbollist_i386 |
c6c37250 | 271 | }, |
a6da4630 A |
272 | #ifdef pe_use_x86_64 |
273 | { | |
274 | "pei-x86-64", | |
275 | "pe-bigobj-x86-64", | |
276 | 3 /* R_IMAGEBASE */, | |
277 | PE_ARCH_i386, | |
278 | bfd_arch_i386, | |
279 | FALSE, | |
280 | autofilter_symbollist_i386 | |
281 | }, | |
282 | #endif | |
344a211f NC |
283 | { |
284 | "pei-shl", | |
285 | "pe-shl", | |
286 | 16 /* R_SH_IMAGEBASE */, | |
287 | PE_ARCH_sh, | |
288 | bfd_arch_sh, | |
5b8273bf NC |
289 | TRUE, |
290 | autofilter_symbollist_generic | |
344a211f NC |
291 | }, |
292 | { | |
293 | "pei-mips", | |
294 | "pe-mips", | |
295 | 34 /* MIPS_R_RVA */, | |
296 | PE_ARCH_mips, | |
297 | bfd_arch_mips, | |
5b8273bf NC |
298 | FALSE, |
299 | autofilter_symbollist_generic | |
344a211f NC |
300 | }, |
301 | { | |
302 | "pei-arm-little", | |
303 | "pe-arm-little", | |
304 | 11 /* ARM_RVA32 */, | |
305 | PE_ARCH_arm, | |
306 | bfd_arch_arm, | |
5b8273bf NC |
307 | TRUE, |
308 | autofilter_symbollist_generic | |
344a211f | 309 | }, |
775cabad NC |
310 | { |
311 | "epoc-pei-arm-little", | |
312 | "epoc-pe-arm-little", | |
313 | 11 /* ARM_RVA32 */, | |
314 | PE_ARCH_arm_epoc, | |
315 | bfd_arch_arm, | |
5b8273bf NC |
316 | FALSE, |
317 | autofilter_symbollist_generic | |
775cabad | 318 | }, |
7148cc28 NC |
319 | { |
320 | "pei-arm-wince-little", | |
321 | "pe-arm-wince-little", | |
322 | 2, /* ARM_RVA32 on Windows CE, see bfd/coff-arm.c. */ | |
323 | PE_ARCH_arm_wince, | |
324 | bfd_arch_arm, | |
325 | FALSE, | |
326 | autofilter_symbollist_generic | |
327 | }, | |
5b8273bf | 328 | { NULL, NULL, 0, 0, 0, FALSE, NULL } |
c6c37250 DD |
329 | }; |
330 | ||
e916811a | 331 | static const pe_details_type *pe_details; |
c6c37250 | 332 | |
775cabad | 333 | /* Do not specify library suffix explicitly, to allow for dllized versions. */ |
e916811a | 334 | static const autofilter_entry_type autofilter_liblist[] = |
775cabad | 335 | { |
0112cd26 NC |
336 | { STRING_COMMA_LEN ("libcegcc") }, |
337 | { STRING_COMMA_LEN ("libcygwin") }, | |
338 | { STRING_COMMA_LEN ("libgcc") }, | |
81b07b16 | 339 | { STRING_COMMA_LEN ("libgcc_s") }, |
0112cd26 NC |
340 | { STRING_COMMA_LEN ("libstdc++") }, |
341 | { STRING_COMMA_LEN ("libmingw32") }, | |
342 | { STRING_COMMA_LEN ("libmingwex") }, | |
343 | { STRING_COMMA_LEN ("libg2c") }, | |
344 | { STRING_COMMA_LEN ("libsupc++") }, | |
345 | { STRING_COMMA_LEN ("libobjc") }, | |
346 | { STRING_COMMA_LEN ("libgcj") }, | |
db86b2dc | 347 | { NULL, 0 } |
b044cda1 | 348 | }; |
775cabad | 349 | |
81b07b16 DK |
350 | /* Regardless of the suffix issue mentioned above, we must ensure that |
351 | we do not falsely match on a leading substring, such as when libtool | |
352 | builds libstdc++ as a DLL using libsupc++convenience.a as an intermediate. | |
353 | This routine ensures that the leading part of the name matches and that | |
354 | it is followed by only an optional version suffix and a file extension, | |
355 | returning zero if so or -1 if not. */ | |
356 | static int libnamencmp (const char *libname, const autofilter_entry_type *afptr) | |
357 | { | |
42627821 | 358 | if (filename_ncmp (libname, afptr->name, afptr->len)) |
81b07b16 DK |
359 | return -1; |
360 | ||
361 | libname += afptr->len; | |
362 | ||
363 | /* Be liberal in interpreting what counts as a version suffix; we | |
364 | accept anything that has a dash to separate it from the name and | |
365 | begins with a digit. */ | |
366 | if (libname[0] == '-') | |
367 | { | |
368 | if (!ISDIGIT (*++libname)) | |
369 | return -1; | |
370 | /* Ensure the filename has an extension. */ | |
371 | while (*++libname != '.') | |
372 | if (!*libname) | |
373 | return -1; | |
374 | } | |
375 | else if (libname[0] != '.') | |
376 | return -1; | |
377 | ||
378 | return 0; | |
379 | } | |
380 | ||
e916811a | 381 | static const autofilter_entry_type autofilter_objlist[] = |
775cabad | 382 | { |
0112cd26 NC |
383 | { STRING_COMMA_LEN ("crt0.o") }, |
384 | { STRING_COMMA_LEN ("crt1.o") }, | |
385 | { STRING_COMMA_LEN ("crt2.o") }, | |
386 | { STRING_COMMA_LEN ("dllcrt1.o") }, | |
387 | { STRING_COMMA_LEN ("dllcrt2.o") }, | |
388 | { STRING_COMMA_LEN ("gcrt0.o") }, | |
389 | { STRING_COMMA_LEN ("gcrt1.o") }, | |
390 | { STRING_COMMA_LEN ("gcrt2.o") }, | |
391 | { STRING_COMMA_LEN ("crtbegin.o") }, | |
392 | { STRING_COMMA_LEN ("crtend.o") }, | |
db86b2dc | 393 | { NULL, 0 } |
b044cda1 | 394 | }; |
775cabad | 395 | |
e916811a | 396 | static const autofilter_entry_type autofilter_symbolprefixlist[] = |
775cabad | 397 | { |
00479ba8 NC |
398 | /* _imp_ is treated specially, as it is always underscored. */ |
399 | /* { STRING_COMMA_LEN ("_imp_") }, */ | |
400 | /* Don't export some c++ symbols. */ | |
0112cd26 | 401 | { STRING_COMMA_LEN ("__rtti_") }, |
00479ba8 | 402 | { STRING_COMMA_LEN ("__builtin_") }, |
39cebe23 | 403 | /* Don't re-export auto-imported symbols. */ |
17f73277 | 404 | { STRING_COMMA_LEN ("__nm_") }, |
775cabad | 405 | /* Don't export symbols specifying internal DLL layout. */ |
0112cd26 | 406 | { STRING_COMMA_LEN ("_head_") }, |
b92216aa DS |
407 | { STRING_COMMA_LEN ("_IMPORT_DESCRIPTOR_") }, |
408 | /* Don't export section labels or artificial symbols | |
409 | (eg ".weak.foo". */ | |
410 | { STRING_COMMA_LEN (".") }, | |
db86b2dc | 411 | { NULL, 0 } |
b044cda1 | 412 | }; |
775cabad | 413 | |
e916811a | 414 | static const autofilter_entry_type autofilter_symbolsuffixlist[] = |
775cabad | 415 | { |
0112cd26 | 416 | { STRING_COMMA_LEN ("_iname") }, |
b92216aa | 417 | { STRING_COMMA_LEN ("_NULL_THUNK_DATA") }, |
db86b2dc | 418 | { NULL, 0 } |
b044cda1 CW |
419 | }; |
420 | ||
c6c37250 DD |
421 | #define U(str) (pe_details->underscored ? "_" str : str) |
422 | ||
423 | void | |
1579bae1 | 424 | pe_dll_id_target (const char *target) |
c6c37250 DD |
425 | { |
426 | int i; | |
775cabad | 427 | |
d643799d | 428 | for (i = 0; pe_detail_list[i].target_name; i++) |
9d68bc82 DD |
429 | if (strcmp (pe_detail_list[i].target_name, target) == 0 |
430 | || strcmp (pe_detail_list[i].object_target, target) == 0) | |
c6c37250 | 431 | { |
522f09cd KT |
432 | int u = pe_leading_underscore; /* Underscoring mode. -1 for use default. */ |
433 | if (u == -1) | |
434 | bfd_get_target_info (target, NULL, NULL, &u, NULL); | |
d74720d2 KT |
435 | if (u == -1) |
436 | abort (); | |
437 | pe_detail_list[i].underscored = (u != 0 ? TRUE : FALSE); | |
d643799d | 438 | pe_details = pe_detail_list + i; |
d74720d2 | 439 | pe_leading_underscore = (u != 0 ? 1 : 0); |
c6c37250 DD |
440 | return; |
441 | } | |
611a3ca9 | 442 | einfo (_("%P%X: Unsupported PEI architecture: %s\n"), target); |
c6c37250 DD |
443 | exit (1); |
444 | } | |
445 | ||
b7a26f91 | 446 | /* Helper functions for qsort. Relocs must be sorted so that we can write |
775cabad | 447 | them out by pages. */ |
252b5132 | 448 | |
775cabad NC |
449 | typedef struct |
450 | { | |
451 | bfd_vma vma; | |
452 | char type; | |
453 | short extra; | |
454 | } | |
455 | reloc_data_type; | |
c6c37250 | 456 | |
252b5132 | 457 | static int |
1579bae1 | 458 | reloc_sort (const void *va, const void *vb) |
252b5132 | 459 | { |
1579bae1 AM |
460 | bfd_vma a = ((const reloc_data_type *) va)->vma; |
461 | bfd_vma b = ((const reloc_data_type *) vb)->vma; | |
775cabad | 462 | |
c6c37250 | 463 | return (a > b) ? 1 : ((a < b) ? -1 : 0); |
252b5132 RH |
464 | } |
465 | ||
466 | static int | |
1579bae1 | 467 | pe_export_sort (const void *va, const void *vb) |
252b5132 | 468 | { |
1579bae1 AM |
469 | const def_file_export *a = va; |
470 | const def_file_export *b = vb; | |
7fcab871 KT |
471 | char *an = a->name; |
472 | char *bn = b->name; | |
473 | if (a->its_name) | |
474 | an = a->its_name; | |
475 | if (b->its_name) | |
476 | bn = b->its_name; | |
477 | ||
478 | return strcmp (an, bn); | |
252b5132 RH |
479 | } |
480 | ||
775cabad | 481 | /* Read and process the .DEF file. */ |
252b5132 RH |
482 | |
483 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
484 | exported_symbol_sections[i] to tag whether or not the symbol was | |
5cc18311 | 485 | defined, since we can't export symbols we don't have. */ |
252b5132 RH |
486 | |
487 | static bfd_vma *exported_symbol_offsets; | |
198beae2 | 488 | static struct bfd_section **exported_symbol_sections; |
252b5132 RH |
489 | static int export_table_size; |
490 | static int count_exported; | |
491 | static int count_exported_byname; | |
492 | static int count_with_ordinals; | |
493 | static const char *dll_name; | |
494 | static int min_ordinal, max_ordinal; | |
495 | static int *exported_symbols; | |
496 | ||
775cabad NC |
497 | typedef struct exclude_list_struct |
498 | { | |
499 | char *string; | |
500 | struct exclude_list_struct *next; | |
e1c37eb5 | 501 | exclude_type type; |
775cabad NC |
502 | } |
503 | exclude_list_struct; | |
86b1cc60 | 504 | |
252b5132 RH |
505 | static struct exclude_list_struct *excludes = 0; |
506 | ||
507 | void | |
e1c37eb5 | 508 | pe_dll_add_excludes (const char *new_excludes, const exclude_type type) |
252b5132 RH |
509 | { |
510 | char *local_copy; | |
511 | char *exclude_string; | |
512 | ||
513 | local_copy = xstrdup (new_excludes); | |
514 | ||
515 | exclude_string = strtok (local_copy, ",:"); | |
516 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
517 | { | |
518 | struct exclude_list_struct *new_exclude; | |
519 | ||
1579bae1 AM |
520 | new_exclude = xmalloc (sizeof (struct exclude_list_struct)); |
521 | new_exclude->string = xmalloc (strlen (exclude_string) + 1); | |
252b5132 | 522 | strcpy (new_exclude->string, exclude_string); |
70b0be79 | 523 | new_exclude->type = type; |
252b5132 RH |
524 | new_exclude->next = excludes; |
525 | excludes = new_exclude; | |
526 | } | |
527 | ||
528 | free (local_copy); | |
529 | } | |
530 | ||
00479ba8 NC |
531 | static bfd_boolean |
532 | is_import (const char* n) | |
533 | { | |
e916811a | 534 | return (CONST_STRNEQ (n, "__imp_")); |
00479ba8 | 535 | } |
70b0be79 | 536 | |
775cabad NC |
537 | /* abfd is a bfd containing n (or NULL) |
538 | It can be used for contextual checks. */ | |
539 | ||
252b5132 | 540 | static int |
1579bae1 | 541 | auto_export (bfd *abfd, def_file *d, const char *n) |
252b5132 | 542 | { |
98872a7c | 543 | def_file_export key; |
252b5132 | 544 | struct exclude_list_struct *ex; |
e916811a | 545 | const autofilter_entry_type *afptr; |
98872a7c NC |
546 | const char * libname = NULL; |
547 | ||
70b0be79 CF |
548 | if (abfd && abfd->my_archive) |
549 | libname = lbasename (abfd->my_archive->filename); | |
b044cda1 | 550 | |
98872a7c NC |
551 | key.name = key.its_name = (char *) n; |
552 | ||
553 | /* Return false if n is in the d->exports table. */ | |
554 | if (bsearch (&key, d->exports, d->num_exports, | |
555 | sizeof (pe_def_file->exports[0]), pe_export_sort)) | |
556 | return 0; | |
775cabad | 557 | |
252b5132 RH |
558 | if (pe_dll_do_default_excludes) |
559 | { | |
663dd378 | 560 | const char * p; |
775cabad NC |
561 | int len; |
562 | ||
b044cda1 | 563 | if (pe_dll_extra_pe_debug) |
775cabad NC |
564 | printf ("considering exporting: %s, abfd=%p, abfd->my_arc=%p\n", |
565 | n, abfd, abfd->my_archive); | |
b044cda1 CW |
566 | |
567 | /* First of all, make context checks: | |
1579bae1 | 568 | Don't export anything from standard libs. */ |
658957db | 569 | if (libname) |
b044cda1 CW |
570 | { |
571 | afptr = autofilter_liblist; | |
775cabad | 572 | |
b044cda1 CW |
573 | while (afptr->name) |
574 | { | |
81b07b16 | 575 | if (libnamencmp (libname, afptr) == 0 ) |
b044cda1 CW |
576 | return 0; |
577 | afptr++; | |
578 | } | |
579 | } | |
580 | ||
775cabad | 581 | /* Next, exclude symbols from certain startup objects. */ |
775cabad | 582 | |
59d28a94 | 583 | if (abfd && (p = lbasename (abfd->filename))) |
663dd378 | 584 | { |
b7a26f91 KH |
585 | afptr = autofilter_objlist; |
586 | while (afptr->name) | |
59d28a94 | 587 | { |
b7a26f91 KH |
588 | if (strcmp (p, afptr->name) == 0) |
589 | return 0; | |
59d28a94 | 590 | afptr++; |
663dd378 | 591 | } |
775cabad | 592 | } |
b044cda1 CW |
593 | |
594 | /* Don't try to blindly exclude all symbols | |
595 | that begin with '__'; this was tried and | |
5b8273bf NC |
596 | it is too restrictive. Instead we have |
597 | a target specific list to use: */ | |
1b610c93 | 598 | afptr = pe_details->autofilter_symbollist; |
99ad8390 | 599 | |
b044cda1 CW |
600 | while (afptr->name) |
601 | { | |
602 | if (strcmp (n, afptr->name) == 0) | |
603 | return 0; | |
775cabad | 604 | |
b7a26f91 | 605 | afptr++; |
b044cda1 CW |
606 | } |
607 | ||
775cabad | 608 | /* Next, exclude symbols starting with ... */ |
b044cda1 CW |
609 | afptr = autofilter_symbolprefixlist; |
610 | while (afptr->name) | |
611 | { | |
612 | if (strncmp (n, afptr->name, afptr->len) == 0) | |
613 | return 0; | |
775cabad | 614 | |
b7a26f91 | 615 | afptr++; |
b044cda1 CW |
616 | } |
617 | ||
775cabad NC |
618 | /* Finally, exclude symbols ending with ... */ |
619 | len = strlen (n); | |
620 | afptr = autofilter_symbolsuffixlist; | |
621 | while (afptr->name) | |
622 | { | |
b7a26f91 | 623 | if ((len >= afptr->len) |
775cabad | 624 | /* Add 1 to insure match with trailing '\0'. */ |
b7a26f91 KH |
625 | && strncmp (n + len - afptr->len, afptr->name, |
626 | afptr->len + 1) == 0) | |
775cabad NC |
627 | return 0; |
628 | ||
b7a26f91 | 629 | afptr++; |
775cabad | 630 | } |
252b5132 | 631 | } |
775cabad | 632 | |
252b5132 | 633 | for (ex = excludes; ex; ex = ex->next) |
70b0be79 | 634 | { |
e1c37eb5 | 635 | if (ex->type == EXCLUDELIBS) |
70b0be79 CF |
636 | { |
637 | if (libname | |
42627821 | 638 | && ((filename_cmp (libname, ex->string) == 0) |
70b0be79 CF |
639 | || (strcasecmp ("ALL", ex->string) == 0))) |
640 | return 0; | |
641 | } | |
e1c37eb5 DK |
642 | else if (ex->type == EXCLUDEFORIMPLIB) |
643 | { | |
42627821 | 644 | if (filename_cmp (abfd->filename, ex->string) == 0) |
e1c37eb5 DK |
645 | return 0; |
646 | } | |
70b0be79 | 647 | else if (strcmp (n, ex->string) == 0) |
658957db | 648 | return 0; |
70b0be79 | 649 | } |
775cabad | 650 | |
252b5132 RH |
651 | return 1; |
652 | } | |
653 | ||
654 | static void | |
c1711530 | 655 | process_def_file_and_drectve (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
252b5132 RH |
656 | { |
657 | int i, j; | |
658 | struct bfd_link_hash_entry *blhe; | |
659 | bfd *b; | |
198beae2 | 660 | struct bfd_section *s; |
d643799d | 661 | def_file_export *e = 0; |
98872a7c | 662 | bfd_boolean resort_needed; |
252b5132 RH |
663 | |
664 | if (!pe_def_file) | |
665 | pe_def_file = def_file_empty (); | |
666 | ||
667 | /* First, run around to all the objects looking for the .drectve | |
86b1cc60 | 668 | sections, and push those into the def file too. */ |
c72f2fb2 | 669 | for (b = info->input_bfds; b; b = b->link.next) |
252b5132 RH |
670 | { |
671 | s = bfd_get_section_by_name (b, ".drectve"); | |
672 | if (s) | |
673 | { | |
eea6121a | 674 | long size = s->size; |
252b5132 | 675 | char *buf = xmalloc (size); |
775cabad | 676 | |
252b5132 RH |
677 | bfd_get_section_contents (b, s, buf, 0, size); |
678 | def_file_add_directive (pe_def_file, buf, size); | |
679 | free (buf); | |
680 | } | |
681 | } | |
682 | ||
c1711530 DK |
683 | /* Process aligned common symbol information from the |
684 | .drectve sections now; common symbol allocation is | |
685 | done before final link, so it will be too late to | |
686 | process them in process_embedded_commands() called | |
687 | from _bfd_coff_link_input_bfd(). */ | |
688 | if (pe_def_file->aligncomms) | |
689 | { | |
690 | def_file_aligncomm *ac = pe_def_file->aligncomms; | |
691 | while (ac) | |
692 | { | |
693 | struct coff_link_hash_entry *sym_hash; | |
694 | sym_hash = coff_link_hash_lookup (coff_hash_table (info), | |
695 | ac->symbol_name, FALSE, FALSE, FALSE); | |
696 | if (sym_hash && sym_hash->root.type == bfd_link_hash_common | |
697 | && sym_hash->root.u.c.p->alignment_power < (unsigned) ac->alignment) | |
698 | { | |
699 | sym_hash->root.u.c.p->alignment_power = (unsigned) ac->alignment; | |
700 | } | |
701 | ac = ac->next; | |
702 | } | |
703 | } | |
704 | ||
2927aaca NC |
705 | /* If we are building an executable and there is nothing |
706 | to export, we do not build an export table at all. */ | |
0e1862bb | 707 | if (bfd_link_executable (info) && pe_def_file->num_exports == 0 |
2927aaca | 708 | && (!pe_dll_export_everything || pe_dll_exclude_all_symbols)) |
2b817be1 NC |
709 | return; |
710 | ||
86b1cc60 | 711 | /* Now, maybe export everything else the default way. */ |
2927aaca NC |
712 | if ((pe_dll_export_everything || pe_def_file->num_exports == 0) |
713 | && !pe_dll_exclude_all_symbols) | |
252b5132 | 714 | { |
c72f2fb2 | 715 | for (b = info->input_bfds; b; b = b->link.next) |
252b5132 RH |
716 | { |
717 | asymbol **symbols; | |
5c1d2f5f | 718 | int nsyms; |
252b5132 | 719 | |
5c1d2f5f AM |
720 | if (!bfd_generic_link_read_symbols (b)) |
721 | { | |
722 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
723 | return; | |
724 | } | |
725 | ||
726 | symbols = bfd_get_outsymbols (b); | |
727 | nsyms = bfd_get_symcount (b); | |
252b5132 RH |
728 | |
729 | for (j = 0; j < nsyms; j++) | |
730 | { | |
d643799d | 731 | /* We should export symbols which are either global or not |
1579bae1 AM |
732 | anything at all. (.bss data is the latter) |
733 | We should not export undefined symbols. */ | |
45dfa85a AM |
734 | bfd_boolean would_export |
735 | = (symbols[j]->section != bfd_und_section_ptr | |
736 | && ((symbols[j]->flags & BSF_GLOBAL) | |
737 | || (symbols[j]->flags == 0))); | |
fd91d419 L |
738 | if (link_info.version_info && would_export) |
739 | would_export | |
740 | = !bfd_hide_sym_by_version (link_info.version_info, | |
741 | symbols[j]->name); | |
09e2aba4 | 742 | if (would_export) |
252b5132 RH |
743 | { |
744 | const char *sn = symbols[j]->name; | |
b044cda1 | 745 | |
775cabad | 746 | /* We should not re-export imported stuff. */ |
b044cda1 | 747 | { |
e916811a | 748 | char *name; |
00479ba8 NC |
749 | if (is_import (sn)) |
750 | continue; | |
751 | ||
e916811a | 752 | name = xmalloc (strlen ("__imp_") + strlen (sn) + 1); |
00479ba8 | 753 | sprintf (name, "%s%s", "__imp_", sn); |
775cabad | 754 | |
b044cda1 | 755 | blhe = bfd_link_hash_lookup (info->hash, name, |
b34976b6 | 756 | FALSE, FALSE, FALSE); |
b044cda1 CW |
757 | free (name); |
758 | ||
b7a26f91 | 759 | if (blhe && blhe->type == bfd_link_hash_defined) |
b044cda1 CW |
760 | continue; |
761 | } | |
762 | ||
00479ba8 | 763 | if (pe_details->underscored && *sn == '_') |
252b5132 | 764 | sn++; |
775cabad | 765 | |
b044cda1 CW |
766 | if (auto_export (b, pe_def_file, sn)) |
767 | { | |
db17156e | 768 | int is_dup = 0; |
b044cda1 | 769 | def_file_export *p; |
98872a7c | 770 | |
db17156e KT |
771 | p = def_file_add_export (pe_def_file, sn, 0, -1, |
772 | NULL, &is_dup); | |
775cabad | 773 | /* Fill data flag properly, from dlltool.c. */ |
db17156e KT |
774 | if (!is_dup) |
775 | p->flag_data = !(symbols[j]->flags & BSF_FUNCTION); | |
b044cda1 | 776 | } |
252b5132 RH |
777 | } |
778 | } | |
779 | } | |
780 | } | |
781 | ||
782 | #undef NE | |
783 | #define NE pe_def_file->num_exports | |
784 | ||
177b81d6 DK |
785 | /* Don't create an empty export table. */ |
786 | if (NE == 0) | |
787 | return; | |
788 | ||
98872a7c NC |
789 | resort_needed = FALSE; |
790 | ||
86b1cc60 | 791 | /* Canonicalize the export list. */ |
252b5132 RH |
792 | if (pe_dll_kill_ats) |
793 | { | |
794 | for (i = 0; i < NE; i++) | |
795 | { | |
31fd86f1 KT |
796 | /* Check for fastcall/stdcall-decoration, but ignore |
797 | C++ mangled names. */ | |
798 | if (pe_def_file->exports[i].name[0] != '?' | |
799 | && strchr (pe_def_file->exports[i].name, '@')) | |
252b5132 | 800 | { |
86b1cc60 | 801 | /* This will preserve internal_name, which may have been |
1579bae1 AM |
802 | pointing to the same memory as name, or might not |
803 | have. */ | |
804 | int lead_at = (*pe_def_file->exports[i].name == '@'); | |
c9e38879 | 805 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
31fd86f1 | 806 | char *tmp_at = strrchr (tmp, '@'); |
775cabad | 807 | |
a8d701fd DS |
808 | if (tmp_at) |
809 | *tmp_at = 0; | |
810 | else | |
611a3ca9 | 811 | einfo (_("%P%X: Cannot export %s: invalid export name\n"), |
a8d701fd | 812 | pe_def_file->exports[i].name); |
252b5132 | 813 | pe_def_file->exports[i].name = tmp; |
98872a7c | 814 | resort_needed = TRUE; |
252b5132 RH |
815 | } |
816 | } | |
817 | } | |
818 | ||
98872a7c NC |
819 | /* Re-sort the exports table as we have possibly changed the order |
820 | by removing leading @. */ | |
821 | if (resort_needed) | |
822 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), | |
823 | pe_export_sort); | |
824 | ||
252b5132 RH |
825 | if (pe_dll_stdcall_aliases) |
826 | { | |
827 | for (i = 0; i < NE; i++) | |
828 | { | |
00479ba8 NC |
829 | if (is_import (pe_def_file->exports[i].name)) |
830 | continue; | |
831 | ||
252b5132 RH |
832 | if (strchr (pe_def_file->exports[i].name, '@')) |
833 | { | |
db17156e | 834 | int is_dup = 1; |
1579bae1 | 835 | int lead_at = (*pe_def_file->exports[i].name == '@'); |
c9e38879 | 836 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
775cabad | 837 | |
252b5132 | 838 | *(strchr (tmp, '@')) = 0; |
b044cda1 | 839 | if (auto_export (NULL, pe_def_file, tmp)) |
252b5132 | 840 | def_file_add_export (pe_def_file, tmp, |
b044cda1 | 841 | pe_def_file->exports[i].internal_name, |
db17156e KT |
842 | -1, NULL, &is_dup); |
843 | if (is_dup) | |
844 | free (tmp); | |
252b5132 RH |
845 | } |
846 | } | |
847 | } | |
848 | ||
86b1cc60 KH |
849 | /* Convenience, but watch out for it changing. */ |
850 | e = pe_def_file->exports; | |
252b5132 | 851 | |
252b5132 RH |
852 | for (i = 0, j = 0; i < NE; i++) |
853 | { | |
854 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
855 | { | |
870df5dc | 856 | /* This is a duplicate. */ |
252b5132 RH |
857 | if (e[j - 1].ordinal != -1 |
858 | && e[i].ordinal != -1 | |
859 | && e[j - 1].ordinal != e[i].ordinal) | |
860 | { | |
870df5dc NC |
861 | if (pe_dll_warn_dup_exports) |
862 | /* xgettext:c-format */ | |
611a3ca9 | 863 | einfo (_("%P%X: Error, duplicate EXPORT with ordinals: %s (%d vs %d)\n"), |
870df5dc | 864 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); |
252b5132 RH |
865 | } |
866 | else | |
867 | { | |
870df5dc NC |
868 | if (pe_dll_warn_dup_exports) |
869 | /* xgettext:c-format */ | |
611a3ca9 | 870 | einfo (_("%P: Warning, duplicate EXPORT: %s\n"), |
870df5dc | 871 | e[j - 1].name); |
252b5132 | 872 | } |
775cabad | 873 | |
486e80e2 | 874 | if (e[i].ordinal != -1) |
252b5132 RH |
875 | e[j - 1].ordinal = e[i].ordinal; |
876 | e[j - 1].flag_private |= e[i].flag_private; | |
877 | e[j - 1].flag_constant |= e[i].flag_constant; | |
878 | e[j - 1].flag_noname |= e[i].flag_noname; | |
879 | e[j - 1].flag_data |= e[i].flag_data; | |
6e230cc2 KT |
880 | if (e[i].name) |
881 | free (e[i].name); | |
882 | if (e[i].internal_name) | |
883 | free (e[i].internal_name); | |
884 | if (e[i].its_name) | |
885 | free (e[i].its_name); | |
252b5132 RH |
886 | } |
887 | else | |
888 | { | |
889 | if (i != j) | |
890 | e[j] = e[i]; | |
891 | j++; | |
892 | } | |
893 | } | |
894 | pe_def_file->num_exports = j; /* == NE */ | |
895 | ||
6e230cc2 KT |
896 | exported_symbol_offsets = xmalloc (NE * sizeof (bfd_vma)); |
897 | exported_symbol_sections = xmalloc (NE * sizeof (struct bfd_section *)); | |
898 | ||
899 | memset (exported_symbol_sections, 0, NE * sizeof (struct bfd_section *)); | |
900 | max_ordinal = 0; | |
901 | min_ordinal = 65536; | |
902 | count_exported = 0; | |
903 | count_exported_byname = 0; | |
904 | count_with_ordinals = 0; | |
905 | ||
252b5132 RH |
906 | for (i = 0; i < NE; i++) |
907 | { | |
e1fa0163 | 908 | char *int_name = pe_def_file->exports[i].internal_name; |
1579bae1 | 909 | char *name; |
41f46ed9 | 910 | |
4153b6db NC |
911 | /* PR 19803: Make sure that any exported symbol does not get garbage collected. */ |
912 | lang_add_gc_name (int_name); | |
913 | ||
e1fa0163 NC |
914 | name = xmalloc (strlen (int_name) + 2); |
915 | if (pe_details->underscored && int_name[0] != '@') | |
c6c37250 DD |
916 | { |
917 | *name = '_'; | |
e1fa0163 | 918 | strcpy (name + 1, int_name); |
67f101ee NC |
919 | |
920 | /* PR 19803: The alias must be preserved as well. */ | |
921 | lang_add_gc_name (xstrdup (name)); | |
c6c37250 DD |
922 | } |
923 | else | |
e1fa0163 | 924 | strcpy (name, int_name); |
252b5132 RH |
925 | |
926 | blhe = bfd_link_hash_lookup (info->hash, | |
927 | name, | |
b34976b6 | 928 | FALSE, FALSE, TRUE); |
252b5132 | 929 | |
8a5b676c | 930 | if (blhe |
d643799d | 931 | && (blhe->type == bfd_link_hash_defined |
8a5b676c | 932 | || (blhe->type == bfd_link_hash_common))) |
252b5132 RH |
933 | { |
934 | count_exported++; | |
935 | if (!pe_def_file->exports[i].flag_noname) | |
936 | count_exported_byname++; | |
8a5b676c DD |
937 | |
938 | /* Only fill in the sections. The actual offsets are computed | |
939 | in fill_exported_offsets() after common symbols are laid | |
940 | out. */ | |
d643799d | 941 | if (blhe->type == bfd_link_hash_defined) |
8a5b676c DD |
942 | exported_symbol_sections[i] = blhe->u.def.section; |
943 | else | |
944 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
5cc18311 | 945 | |
75898d57 DK |
946 | if (pe_def_file->exports[i].ordinal != -1) |
947 | { | |
948 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
949 | max_ordinal = pe_def_file->exports[i].ordinal; | |
950 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
951 | min_ordinal = pe_def_file->exports[i].ordinal; | |
952 | count_with_ordinals++; | |
953 | } | |
954 | } | |
955 | /* Check for forward exports. These are indicated in DEF files by an | |
956 | export directive of the form NAME1 = MODULE-NAME.EXTERNAL-NAME | |
957 | but we must take care not to be fooled when the user wants to export | |
958 | a symbol that actually really has a dot in it, so we only check | |
959 | for them here, after real defined symbols have already been matched. */ | |
e1fa0163 | 960 | else if (strchr (int_name, '.')) |
75898d57 DK |
961 | { |
962 | count_exported++; | |
963 | if (!pe_def_file->exports[i].flag_noname) | |
964 | count_exported_byname++; | |
965 | ||
966 | pe_def_file->exports[i].flag_forward = 1; | |
967 | ||
252b5132 RH |
968 | if (pe_def_file->exports[i].ordinal != -1) |
969 | { | |
970 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
971 | max_ordinal = pe_def_file->exports[i].ordinal; | |
972 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
973 | min_ordinal = pe_def_file->exports[i].ordinal; | |
974 | count_with_ordinals++; | |
975 | } | |
976 | } | |
977 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
978 | { | |
979 | /* xgettext:c-format */ | |
611a3ca9 | 980 | einfo (_("%P%X: Cannot export %s: symbol not defined\n"), |
e1fa0163 | 981 | int_name); |
252b5132 RH |
982 | } |
983 | else if (blhe) | |
984 | { | |
985 | /* xgettext:c-format */ | |
611a3ca9 | 986 | einfo (_("%P%X: Cannot export %s: symbol wrong type (%d vs %d)\n"), |
e1fa0163 | 987 | int_name, |
252b5132 RH |
988 | blhe->type, bfd_link_hash_defined); |
989 | } | |
990 | else | |
991 | { | |
992 | /* xgettext:c-format */ | |
611a3ca9 | 993 | einfo (_("%P%X: Cannot export %s: symbol not found\n"), |
e1fa0163 | 994 | int_name); |
252b5132 RH |
995 | } |
996 | free (name); | |
997 | } | |
998 | } | |
999 | ||
775cabad | 1000 | /* Build the bfd that will contain .edata and .reloc sections. */ |
252b5132 RH |
1001 | |
1002 | static void | |
1579bae1 | 1003 | build_filler_bfd (int include_edata) |
252b5132 RH |
1004 | { |
1005 | lang_input_statement_type *filler_file; | |
1006 | filler_file = lang_add_input_file ("dll stuff", | |
1007 | lang_input_file_is_fake_enum, | |
1008 | NULL); | |
f13a99db AM |
1009 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", |
1010 | link_info.output_bfd); | |
252b5132 RH |
1011 | if (filler_bfd == NULL |
1012 | || !bfd_set_arch_mach (filler_bfd, | |
f13a99db AM |
1013 | bfd_get_arch (link_info.output_bfd), |
1014 | bfd_get_mach (link_info.output_bfd))) | |
252b5132 | 1015 | { |
36230712 | 1016 | einfo ("%X%P: can not create BFD: %E\n"); |
252b5132 RH |
1017 | return; |
1018 | } | |
1019 | ||
c6c37250 | 1020 | if (include_edata) |
252b5132 | 1021 | { |
c6c37250 DD |
1022 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
1023 | if (edata_s == NULL | |
1024 | || !bfd_set_section_flags (filler_bfd, edata_s, | |
1025 | (SEC_HAS_CONTENTS | |
1026 | | SEC_ALLOC | |
1027 | | SEC_LOAD | |
1028 | | SEC_KEEP | |
1029 | | SEC_IN_MEMORY))) | |
1030 | { | |
1031 | einfo ("%X%P: can not create .edata section: %E\n"); | |
1032 | return; | |
1033 | } | |
1034 | bfd_set_section_size (filler_bfd, edata_s, edata_sz); | |
252b5132 | 1035 | } |
252b5132 RH |
1036 | |
1037 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
1038 | if (reloc_s == NULL | |
1039 | || !bfd_set_section_flags (filler_bfd, reloc_s, | |
1040 | (SEC_HAS_CONTENTS | |
1041 | | SEC_ALLOC | |
1042 | | SEC_LOAD | |
1043 | | SEC_KEEP | |
1044 | | SEC_IN_MEMORY))) | |
1045 | { | |
1046 | einfo ("%X%P: can not create .reloc section: %E\n"); | |
1047 | return; | |
1048 | } | |
775cabad | 1049 | |
252b5132 RH |
1050 | bfd_set_section_size (filler_bfd, reloc_s, 0); |
1051 | ||
1052 | ldlang_add_file (filler_file); | |
1053 | } | |
1054 | ||
775cabad | 1055 | /* Gather all the exported symbols and build the .edata section. */ |
252b5132 RH |
1056 | |
1057 | static void | |
1579bae1 | 1058 | generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 RH |
1059 | { |
1060 | int i, next_ordinal; | |
1061 | int name_table_size = 0; | |
1062 | const char *dlnp; | |
1063 | ||
1064 | /* First, we need to know how many exported symbols there are, | |
5cc18311 | 1065 | and what the range of ordinals is. */ |
252b5132 | 1066 | if (pe_def_file->name) |
775cabad | 1067 | dll_name = pe_def_file->name; |
252b5132 RH |
1068 | else |
1069 | { | |
1070 | dll_name = abfd->filename; | |
775cabad | 1071 | |
252b5132 | 1072 | for (dlnp = dll_name; *dlnp; dlnp++) |
775cabad NC |
1073 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') |
1074 | dll_name = dlnp + 1; | |
252b5132 RH |
1075 | } |
1076 | ||
1077 | if (count_with_ordinals && max_ordinal > count_exported) | |
1078 | { | |
1079 | if (min_ordinal > max_ordinal - count_exported + 1) | |
1080 | min_ordinal = max_ordinal - count_exported + 1; | |
1081 | } | |
1082 | else | |
1083 | { | |
1084 | min_ordinal = 1; | |
1085 | max_ordinal = count_exported; | |
1086 | } | |
252b5132 | 1087 | |
775cabad | 1088 | export_table_size = max_ordinal - min_ordinal + 1; |
1579bae1 | 1089 | exported_symbols = xmalloc (export_table_size * sizeof (int)); |
252b5132 RH |
1090 | for (i = 0; i < export_table_size; i++) |
1091 | exported_symbols[i] = -1; | |
1092 | ||
86b1cc60 | 1093 | /* Now we need to assign ordinals to those that don't have them. */ |
252b5132 RH |
1094 | for (i = 0; i < NE; i++) |
1095 | { | |
a8d701fd DS |
1096 | if (exported_symbol_sections[i] || |
1097 | pe_def_file->exports[i].flag_forward) | |
252b5132 RH |
1098 | { |
1099 | if (pe_def_file->exports[i].ordinal != -1) | |
1100 | { | |
1101 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
1102 | int pi = exported_symbols[ei]; | |
775cabad | 1103 | |
252b5132 RH |
1104 | if (pi != -1) |
1105 | { | |
1106 | /* xgettext:c-format */ | |
611a3ca9 | 1107 | einfo (_("%P%X: Error: ordinal used twice: %d (%s vs %s)\n"), |
252b5132 RH |
1108 | pe_def_file->exports[i].ordinal, |
1109 | pe_def_file->exports[i].name, | |
1110 | pe_def_file->exports[pi].name); | |
1111 | } | |
1112 | exported_symbols[ei] = i; | |
1113 | } | |
7fcab871 KT |
1114 | if (pe_def_file->exports[i].its_name) |
1115 | name_table_size += strlen (pe_def_file->exports[i].its_name) + 1; | |
1116 | else | |
1117 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
252b5132 | 1118 | } |
a8d701fd DS |
1119 | |
1120 | /* Reserve space for the forward name. */ | |
1121 | if (pe_def_file->exports[i].flag_forward) | |
1122 | { | |
1123 | name_table_size += strlen (pe_def_file->exports[i].internal_name) + 1; | |
1124 | } | |
252b5132 RH |
1125 | } |
1126 | ||
1127 | next_ordinal = min_ordinal; | |
1128 | for (i = 0; i < NE; i++) | |
a8d701fd DS |
1129 | if ((exported_symbol_sections[i] || |
1130 | pe_def_file->exports[i].flag_forward) && | |
1131 | pe_def_file->exports[i].ordinal == -1) | |
1132 | { | |
1133 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
1134 | next_ordinal++; | |
775cabad | 1135 | |
a8d701fd DS |
1136 | exported_symbols[next_ordinal - min_ordinal] = i; |
1137 | pe_def_file->exports[i].ordinal = next_ordinal; | |
1138 | } | |
252b5132 | 1139 | |
611a3ca9 NC |
1140 | /* PR 12969: Check for more than 1^16 ordinals. */ |
1141 | if (max_ordinal > 65535 || next_ordinal > 65535) | |
1142 | /* xgettext:c-format */ | |
1143 | einfo(_("%P%X: Error: export ordinal too large: %d\n"), | |
1144 | max_ordinal > next_ordinal ? max_ordinal : next_ordinal); | |
1145 | ||
86b1cc60 | 1146 | /* OK, now we can allocate some memory. */ |
775cabad NC |
1147 | edata_sz = (40 /* directory */ |
1148 | + 4 * export_table_size /* addresses */ | |
252b5132 RH |
1149 | + 4 * count_exported_byname /* name ptrs */ |
1150 | + 2 * count_exported_byname /* ordinals */ | |
1151 | + name_table_size + strlen (dll_name) + 1); | |
1152 | } | |
1153 | ||
8a5b676c | 1154 | /* Fill the exported symbol offsets. The preliminary work has already |
c1711530 | 1155 | been done in process_def_file_and_drectve(). */ |
8a5b676c DD |
1156 | |
1157 | static void | |
1579bae1 | 1158 | fill_exported_offsets (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
8a5b676c | 1159 | { |
f0c87f88 | 1160 | int i; |
8a5b676c | 1161 | struct bfd_link_hash_entry *blhe; |
5cc18311 | 1162 | |
8a5b676c DD |
1163 | for (i = 0; i < pe_def_file->num_exports; i++) |
1164 | { | |
1579bae1 | 1165 | char *name; |
775cabad | 1166 | |
1579bae1 | 1167 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 | 1168 | if (pe_details->underscored |
1579bae1 | 1169 | && *pe_def_file->exports[i].internal_name != '@') |
8a5b676c DD |
1170 | { |
1171 | *name = '_'; | |
1172 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
1173 | } | |
1174 | else | |
1175 | strcpy (name, pe_def_file->exports[i].internal_name); | |
1176 | ||
1177 | blhe = bfd_link_hash_lookup (info->hash, | |
1178 | name, | |
b34976b6 | 1179 | FALSE, FALSE, TRUE); |
8a5b676c | 1180 | |
1579bae1 | 1181 | if (blhe && blhe->type == bfd_link_hash_defined) |
775cabad NC |
1182 | exported_symbol_offsets[i] = blhe->u.def.value; |
1183 | ||
8a5b676c DD |
1184 | free (name); |
1185 | } | |
1186 | } | |
1187 | ||
252b5132 | 1188 | static void |
1579bae1 | 1189 | fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 | 1190 | { |
03a1c9a7 | 1191 | int s, hint; |
252b5132 | 1192 | unsigned char *edirectory; |
2f9636ba AM |
1193 | unsigned char *eaddresses; |
1194 | unsigned char *enameptrs; | |
1195 | unsigned char *eordinals; | |
47639182 | 1196 | char *enamestr; |
252b5132 | 1197 | |
1579bae1 | 1198 | edata_d = xmalloc (edata_sz); |
252b5132 | 1199 | |
86b1cc60 | 1200 | /* Note use of array pointer math here. */ |
252b5132 | 1201 | edirectory = edata_d; |
c7e2358a | 1202 | eaddresses = edirectory + 40; |
2f9636ba AM |
1203 | enameptrs = eaddresses + 4 * export_table_size; |
1204 | eordinals = enameptrs + 4 * count_exported_byname; | |
47639182 | 1205 | enamestr = (char *) eordinals + 2 * count_exported_byname; |
252b5132 | 1206 | |
1579bae1 AM |
1207 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) \ |
1208 | + edata_s->output_section->vma - image_base) | |
252b5132 | 1209 | |
c2a94a7a | 1210 | memset (edata_d, 0, edata_sz); |
0cb112f7 CF |
1211 | |
1212 | if (pe_data (abfd)->insert_timestamp) | |
1213 | H_PUT_32 (abfd, time (0), edata_d + 4); | |
1214 | ||
252b5132 RH |
1215 | if (pe_def_file->version_major != -1) |
1216 | { | |
1217 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
1218 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
1219 | } | |
775cabad | 1220 | |
252b5132 RH |
1221 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); |
1222 | strcpy (enamestr, dll_name); | |
1223 | enamestr += strlen (enamestr) + 1; | |
1224 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
1225 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
1226 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
1227 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
1228 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
1229 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
1230 | ||
8a5b676c DD |
1231 | fill_exported_offsets (abfd, info); |
1232 | ||
03a1c9a7 NC |
1233 | /* Ok, now for the filling in part. |
1234 | Scan alphabetically - ie the ordering in the exports[] table, | |
1235 | rather than by ordinal - the ordering in the exported_symbol[] | |
1236 | table. See dlltool.c and: | |
1237 | http://sources.redhat.com/ml/binutils/2003-04/msg00379.html | |
1579bae1 | 1238 | for more information. */ |
252b5132 | 1239 | hint = 0; |
03a1c9a7 | 1240 | for (s = 0; s < NE; s++) |
252b5132 | 1241 | { |
f5a95868 | 1242 | struct bfd_section *ssec = exported_symbol_sections[s]; |
a8d701fd DS |
1243 | if (pe_def_file->exports[s].ordinal != -1 && |
1244 | (pe_def_file->exports[s].flag_forward || ssec != NULL)) | |
252b5132 | 1245 | { |
45b1f63c | 1246 | int ord = pe_def_file->exports[s].ordinal; |
252b5132 | 1247 | |
a8d701fd DS |
1248 | if (pe_def_file->exports[s].flag_forward) |
1249 | { | |
1250 | bfd_put_32 (abfd, ERVA (enamestr), | |
1251 | eaddresses + 4 * (ord - min_ordinal)); | |
1252 | ||
1253 | strcpy (enamestr, pe_def_file->exports[s].internal_name); | |
1254 | enamestr += strlen (pe_def_file->exports[s].internal_name) + 1; | |
1255 | } | |
1256 | else | |
1257 | { | |
6ca0987a | 1258 | bfd_vma srva = (exported_symbol_offsets[s] |
a8d701fd DS |
1259 | + ssec->output_section->vma |
1260 | + ssec->output_offset); | |
1261 | ||
1262 | bfd_put_32 (abfd, srva - image_base, | |
1263 | eaddresses + 4 * (ord - min_ordinal)); | |
1264 | } | |
775cabad | 1265 | |
252b5132 RH |
1266 | if (!pe_def_file->exports[s].flag_noname) |
1267 | { | |
1268 | char *ename = pe_def_file->exports[s].name; | |
7fcab871 KT |
1269 | if (pe_def_file->exports[s].its_name) |
1270 | ename = pe_def_file->exports[s].its_name; | |
03a1c9a7 | 1271 | |
2f9636ba AM |
1272 | bfd_put_32 (abfd, ERVA (enamestr), enameptrs); |
1273 | enameptrs += 4; | |
252b5132 RH |
1274 | strcpy (enamestr, ename); |
1275 | enamestr += strlen (enamestr) + 1; | |
2f9636ba AM |
1276 | bfd_put_16 (abfd, ord - min_ordinal, eordinals); |
1277 | eordinals += 2; | |
252b5132 RH |
1278 | pe_def_file->exports[s].hint = hint++; |
1279 | } | |
252b5132 RH |
1280 | } |
1281 | } | |
1282 | } | |
1283 | ||
b044cda1 | 1284 | |
198beae2 | 1285 | static struct bfd_section *current_sec; |
b044cda1 CW |
1286 | |
1287 | void | |
1579bae1 | 1288 | pe_walk_relocs_of_symbol (struct bfd_link_info *info, |
fbea1508 AM |
1289 | char *name, |
1290 | int (*cb) (arelent *, asection *, char *)) | |
b044cda1 CW |
1291 | { |
1292 | bfd *b; | |
0d888aac | 1293 | asection *s; |
b044cda1 | 1294 | |
c72f2fb2 | 1295 | for (b = info->input_bfds; b; b = b->link.next) |
b044cda1 | 1296 | { |
775cabad | 1297 | asymbol **symbols; |
775cabad | 1298 | |
5c1d2f5f AM |
1299 | if (!bfd_generic_link_read_symbols (b)) |
1300 | { | |
1301 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
1302 | return; | |
1303 | } | |
1304 | ||
1305 | symbols = bfd_get_outsymbols (b); | |
b044cda1 CW |
1306 | |
1307 | for (s = b->sections; s; s = s->next) | |
1308 | { | |
775cabad NC |
1309 | arelent **relocs; |
1310 | int relsize, nrelocs, i; | |
b044cda1 CW |
1311 | int flags = bfd_get_section_flags (b, s); |
1312 | ||
775cabad | 1313 | /* Skip discarded linkonce sections. */ |
b044cda1 CW |
1314 | if (flags & SEC_LINK_ONCE |
1315 | && s->output_section == bfd_abs_section_ptr) | |
1316 | continue; | |
1317 | ||
0d888aac | 1318 | current_sec = s; |
b044cda1 | 1319 | |
b044cda1 | 1320 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1321 | relocs = xmalloc (relsize); |
b044cda1 CW |
1322 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1323 | ||
1324 | for (i = 0; i < nrelocs; i++) | |
1325 | { | |
fc0a2244 | 1326 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad NC |
1327 | |
1328 | if (!strcmp (name, sym->name)) | |
fbea1508 | 1329 | cb (relocs[i], s, name); |
b044cda1 | 1330 | } |
775cabad | 1331 | |
b044cda1 | 1332 | free (relocs); |
775cabad | 1333 | |
b044cda1 CW |
1334 | /* Warning: the allocated symbols are remembered in BFD and reused |
1335 | later, so don't free them! */ | |
1336 | /* free (symbols); */ | |
1337 | } | |
1338 | } | |
1339 | } | |
1340 | ||
775cabad | 1341 | /* Gather all the relocations and build the .reloc section. */ |
252b5132 RH |
1342 | |
1343 | static void | |
1579bae1 | 1344 | generate_reloc (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
1345 | { |
1346 | ||
86b1cc60 | 1347 | /* For .reloc stuff. */ |
c6c37250 | 1348 | reloc_data_type *reloc_data; |
252b5132 RH |
1349 | int total_relocs = 0; |
1350 | int i; | |
6ca0987a KT |
1351 | bfd_vma sec_page = (bfd_vma) -1; |
1352 | bfd_vma page_ptr, page_count; | |
252b5132 RH |
1353 | int bi; |
1354 | bfd *b; | |
198beae2 | 1355 | struct bfd_section *s; |
252b5132 RH |
1356 | |
1357 | total_relocs = 0; | |
c72f2fb2 | 1358 | for (b = info->input_bfds; b; b = b->link.next) |
252b5132 RH |
1359 | for (s = b->sections; s; s = s->next) |
1360 | total_relocs += s->reloc_count; | |
1361 | ||
1579bae1 | 1362 | reloc_data = xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
1363 | |
1364 | total_relocs = 0; | |
1365 | bi = 0; | |
c72f2fb2 | 1366 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link.next) |
252b5132 RH |
1367 | { |
1368 | arelent **relocs; | |
91d6fa6a | 1369 | int relsize, nrelocs; |
252b5132 RH |
1370 | |
1371 | for (s = b->sections; s; s = s->next) | |
1372 | { | |
6ca0987a | 1373 | bfd_vma sec_vma = s->output_section->vma + s->output_offset; |
252b5132 | 1374 | asymbol **symbols; |
252b5132 | 1375 | |
86b1cc60 | 1376 | /* If it's not loaded, we don't need to relocate it this way. */ |
252b5132 RH |
1377 | if (!(s->output_section->flags & SEC_LOAD)) |
1378 | continue; | |
1379 | ||
1380 | /* I don't know why there would be a reloc for these, but I've | |
86b1cc60 | 1381 | seen it happen - DJ */ |
45dfa85a | 1382 | if (s->output_section == bfd_abs_section_ptr) |
252b5132 RH |
1383 | continue; |
1384 | ||
1385 | if (s->output_section->vma == 0) | |
1386 | { | |
86b1cc60 | 1387 | /* Huh? Shouldn't happen, but punt if it does. */ |
252b5132 RH |
1388 | einfo ("DJ: zero vma section reloc detected: `%s' #%d f=%d\n", |
1389 | s->output_section->name, s->output_section->index, | |
1390 | s->output_section->flags); | |
1391 | continue; | |
1392 | } | |
1393 | ||
5c1d2f5f AM |
1394 | if (!bfd_generic_link_read_symbols (b)) |
1395 | { | |
1396 | einfo (_("%B%F: could not read symbols: %E\n"), b); | |
1397 | return; | |
1398 | } | |
252b5132 | 1399 | |
5c1d2f5f | 1400 | symbols = bfd_get_outsymbols (b); |
252b5132 | 1401 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1402 | relocs = xmalloc (relsize); |
252b5132 RH |
1403 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1404 | ||
1405 | for (i = 0; i < nrelocs; i++) | |
1406 | { | |
b044cda1 | 1407 | if (pe_dll_extra_pe_debug) |
b7a26f91 | 1408 | { |
fc0a2244 | 1409 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
b7a26f91 | 1410 | printf ("rel: %s\n", sym->name); |
b044cda1 | 1411 | } |
252b5132 | 1412 | if (!relocs[i]->howto->pc_relative |
c6c37250 | 1413 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 1414 | { |
fc0a2244 | 1415 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad | 1416 | |
1b610c93 | 1417 | /* Don't create relocs for undefined weak symbols. */ |
49314f87 DS |
1418 | if (sym->flags == BSF_WEAK) |
1419 | { | |
1420 | struct bfd_link_hash_entry *blhe | |
9dda37c1 | 1421 | = bfd_wrapped_link_hash_lookup (abfd, info, sym->name, |
49314f87 | 1422 | FALSE, FALSE, FALSE); |
9dda37c1 DK |
1423 | if (blhe && blhe->type == bfd_link_hash_undefweak) |
1424 | { | |
1425 | /* Check aux sym and see if it is defined or not. */ | |
1426 | struct coff_link_hash_entry *h, *h2; | |
1427 | h = (struct coff_link_hash_entry *)blhe; | |
1428 | if (h->symbol_class != C_NT_WEAK || h->numaux != 1) | |
1429 | continue; | |
1430 | h2 = h->auxbfd->tdata.coff_obj_data->sym_hashes | |
1431 | [h->aux->x_sym.x_tagndx.l]; | |
1432 | /* We don't want a base reloc if the aux sym is not | |
1433 | found, undefined, or if it is the constant ABS | |
1434 | zero default value. (We broaden that slightly by | |
1435 | not testing the value, just the section; there's | |
1436 | no reason we'd want a reference to any absolute | |
1437 | address to get relocated during rebasing). */ | |
1438 | if (!h2 || h2->root.type == bfd_link_hash_undefined | |
45dfa85a | 1439 | || h2->root.u.def.section == bfd_abs_section_ptr) |
9dda37c1 DK |
1440 | continue; |
1441 | } | |
1442 | else if (!blhe || blhe->type != bfd_link_hash_defined) | |
1443 | continue; | |
49314f87 | 1444 | } |
0432176d DK |
1445 | /* Nor for Dwarf FDE references to discarded sections. */ |
1446 | else if (bfd_is_abs_section (sym->section->output_section)) | |
1447 | { | |
1448 | /* We only ignore relocs from .eh_frame sections, as | |
1449 | they are discarded by the final link rather than | |
1450 | resolved against the kept section. */ | |
1451 | if (!strcmp (s->name, ".eh_frame")) | |
1452 | continue; | |
1453 | } | |
49314f87 | 1454 | |
c6c37250 | 1455 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; |
5cc18311 | 1456 | |
344a211f | 1457 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) |
5cc18311 | 1458 | |
344a211f NC |
1459 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, |
1460 | relocs[i]->howto->rightshift) | |
252b5132 | 1461 | { |
99ad8390 NC |
1462 | #ifdef pe_use_x86_64 |
1463 | case BITS_AND_SHIFT (64, 0): | |
1464 | reloc_data[total_relocs].type = 10; | |
1465 | total_relocs++; | |
1466 | break; | |
1467 | #endif | |
344a211f | 1468 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
1469 | reloc_data[total_relocs].type = 3; |
1470 | total_relocs++; | |
252b5132 | 1471 | break; |
344a211f NC |
1472 | case BITS_AND_SHIFT (16, 0): |
1473 | reloc_data[total_relocs].type = 2; | |
1474 | total_relocs++; | |
1475 | break; | |
1476 | case BITS_AND_SHIFT (16, 16): | |
1477 | reloc_data[total_relocs].type = 4; | |
86b1cc60 KH |
1478 | /* FIXME: we can't know the symbol's right value |
1479 | yet, but we probably can safely assume that | |
1480 | CE will relocate us in 64k blocks, so leaving | |
1481 | it zero is safe. */ | |
344a211f NC |
1482 | reloc_data[total_relocs].extra = 0; |
1483 | total_relocs++; | |
1484 | break; | |
1485 | case BITS_AND_SHIFT (26, 2): | |
1486 | reloc_data[total_relocs].type = 5; | |
1487 | total_relocs++; | |
1488 | break; | |
fea39bcb | 1489 | case BITS_AND_SHIFT (24, 2): |
d3793eaa NC |
1490 | /* FIXME: 0 is ARM_26D, it is defined in bfd/coff-arm.c |
1491 | Those ARM_xxx definitions should go in proper | |
1492 | header someday. */ | |
1493 | if (relocs[i]->howto->type == 0 | |
1494 | /* Older GNU linkers used 5 instead of 0 for this reloc. */ | |
1495 | || relocs[i]->howto->type == 5) | |
fea39bcb NC |
1496 | /* This is an ARM_26D reloc, which is an ARM_26 reloc |
1497 | that has already been fully processed during a | |
1498 | previous link stage, so ignore it here. */ | |
1499 | break; | |
1500 | /* Fall through. */ | |
252b5132 RH |
1501 | default: |
1502 | /* xgettext:c-format */ | |
611a3ca9 | 1503 | einfo (_("%P%X: Error: %d-bit reloc in dll\n"), |
252b5132 RH |
1504 | relocs[i]->howto->bitsize); |
1505 | break; | |
1506 | } | |
1507 | } | |
1508 | } | |
1509 | free (relocs); | |
86b1cc60 KH |
1510 | /* Warning: the allocated symbols are remembered in BFD and |
1511 | reused later, so don't free them! */ | |
252b5132 RH |
1512 | } |
1513 | } | |
1514 | ||
1515 | /* At this point, we have total_relocs relocation addresses in | |
1516 | reloc_addresses, which are all suitable for the .reloc section. | |
5cc18311 | 1517 | We must now create the new sections. */ |
c6c37250 | 1518 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
1519 | |
1520 | for (i = 0; i < total_relocs; i++) | |
1521 | { | |
6ca0987a | 1522 | bfd_vma this_page = (reloc_data[i].vma >> 12); |
5cc18311 | 1523 | |
252b5132 RH |
1524 | if (this_page != sec_page) |
1525 | { | |
775cabad | 1526 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
252b5132 RH |
1527 | reloc_sz += 8; |
1528 | sec_page = this_page; | |
1529 | } | |
5cc18311 | 1530 | |
252b5132 | 1531 | reloc_sz += 2; |
5cc18311 | 1532 | |
344a211f NC |
1533 | if (reloc_data[i].type == 4) |
1534 | reloc_sz += 2; | |
252b5132 | 1535 | } |
b7a26f91 | 1536 | |
775cabad | 1537 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
1579bae1 | 1538 | reloc_d = xmalloc (reloc_sz); |
6ca0987a | 1539 | sec_page = (bfd_vma) -1; |
252b5132 | 1540 | reloc_sz = 0; |
6ca0987a | 1541 | page_ptr = (bfd_vma) -1; |
252b5132 | 1542 | page_count = 0; |
775cabad | 1543 | |
252b5132 RH |
1544 | for (i = 0; i < total_relocs; i++) |
1545 | { | |
6ca0987a KT |
1546 | bfd_vma rva = reloc_data[i].vma - image_base; |
1547 | bfd_vma this_page = (rva & ~0xfff); | |
775cabad | 1548 | |
252b5132 RH |
1549 | if (this_page != sec_page) |
1550 | { | |
1551 | while (reloc_sz & 3) | |
1552 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1553 | |
6ca0987a | 1554 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1555 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1556 | |
252b5132 RH |
1557 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); |
1558 | page_ptr = reloc_sz; | |
1559 | reloc_sz += 8; | |
1560 | sec_page = this_page; | |
1561 | page_count = 0; | |
1562 | } | |
775cabad | 1563 | |
d643799d | 1564 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type << 12), |
c6c37250 | 1565 | reloc_d + reloc_sz); |
252b5132 | 1566 | reloc_sz += 2; |
775cabad | 1567 | |
c6c37250 DD |
1568 | if (reloc_data[i].type == 4) |
1569 | { | |
1570 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
1571 | reloc_sz += 2; | |
1572 | } | |
775cabad | 1573 | |
252b5132 RH |
1574 | page_count++; |
1575 | } | |
775cabad | 1576 | |
252b5132 RH |
1577 | while (reloc_sz & 3) |
1578 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1579 | |
6ca0987a | 1580 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1581 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1582 | |
eea6121a | 1583 | while (reloc_sz < reloc_s->size) |
252b5132 RH |
1584 | reloc_d[reloc_sz++] = 0; |
1585 | } | |
1586 | ||
775cabad NC |
1587 | /* Given the exiting def_file structure, print out a .DEF file that |
1588 | corresponds to it. */ | |
252b5132 RH |
1589 | |
1590 | static void | |
1579bae1 | 1591 | quoteput (char *s, FILE *f, int needs_quotes) |
252b5132 RH |
1592 | { |
1593 | char *cp; | |
775cabad | 1594 | |
252b5132 RH |
1595 | for (cp = s; *cp; cp++) |
1596 | if (*cp == '\'' | |
1597 | || *cp == '"' | |
1598 | || *cp == '\\' | |
3882b010 | 1599 | || ISSPACE (*cp) |
252b5132 RH |
1600 | || *cp == ',' |
1601 | || *cp == ';') | |
1602 | needs_quotes = 1; | |
775cabad | 1603 | |
252b5132 RH |
1604 | if (needs_quotes) |
1605 | { | |
1606 | putc ('"', f); | |
775cabad | 1607 | |
252b5132 RH |
1608 | while (*s) |
1609 | { | |
1610 | if (*s == '"' || *s == '\\') | |
1611 | putc ('\\', f); | |
775cabad | 1612 | |
252b5132 RH |
1613 | putc (*s, f); |
1614 | s++; | |
1615 | } | |
775cabad | 1616 | |
252b5132 RH |
1617 | putc ('"', f); |
1618 | } | |
1619 | else | |
1620 | fputs (s, f); | |
1621 | } | |
1622 | ||
1623 | void | |
1579bae1 | 1624 | pe_dll_generate_def_file (const char *pe_out_def_filename) |
252b5132 RH |
1625 | { |
1626 | int i; | |
1627 | FILE *out = fopen (pe_out_def_filename, "w"); | |
775cabad | 1628 | |
252b5132 | 1629 | if (out == NULL) |
775cabad | 1630 | /* xgettext:c-format */ |
611a3ca9 NC |
1631 | einfo (_("%P: Can't open output def file %s\n"), |
1632 | pe_out_def_filename); | |
252b5132 RH |
1633 | |
1634 | if (pe_def_file) | |
1635 | { | |
1636 | if (pe_def_file->name) | |
1637 | { | |
1638 | if (pe_def_file->is_dll) | |
1639 | fprintf (out, "LIBRARY "); | |
1640 | else | |
1641 | fprintf (out, "NAME "); | |
775cabad | 1642 | |
252b5132 | 1643 | quoteput (pe_def_file->name, out, 1); |
775cabad | 1644 | |
f13a99db | 1645 | if (pe_data (link_info.output_bfd)->pe_opthdr.ImageBase) |
0ead4f8d KT |
1646 | { |
1647 | fprintf (out, " BASE=0x"); | |
1648 | fprintf_vma (out, ((bfd_vma) pe_data (link_info.output_bfd)->pe_opthdr.ImageBase)); | |
1649 | } | |
252b5132 RH |
1650 | fprintf (out, "\n"); |
1651 | } | |
1652 | ||
1653 | if (pe_def_file->description) | |
1654 | { | |
1655 | fprintf (out, "DESCRIPTION "); | |
1656 | quoteput (pe_def_file->description, out, 1); | |
1657 | fprintf (out, "\n"); | |
1658 | } | |
1659 | ||
1660 | if (pe_def_file->version_minor != -1) | |
1661 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
1662 | pe_def_file->version_minor); | |
1663 | else if (pe_def_file->version_major != -1) | |
1664 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
1665 | ||
1666 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
1667 | fprintf (out, "\n"); | |
1668 | ||
1669 | if (pe_def_file->stack_commit != -1) | |
1670 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
1671 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
1672 | else if (pe_def_file->stack_reserve != -1) | |
1673 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
775cabad | 1674 | |
252b5132 RH |
1675 | if (pe_def_file->heap_commit != -1) |
1676 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1677 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1678 | else if (pe_def_file->heap_reserve != -1) | |
1679 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1680 | ||
1681 | if (pe_def_file->num_section_defs > 0) | |
1682 | { | |
1683 | fprintf (out, "\nSECTIONS\n\n"); | |
775cabad | 1684 | |
252b5132 RH |
1685 | for (i = 0; i < pe_def_file->num_section_defs; i++) |
1686 | { | |
1687 | fprintf (out, " "); | |
1688 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
775cabad | 1689 | |
252b5132 RH |
1690 | if (pe_def_file->section_defs[i].class) |
1691 | { | |
1692 | fprintf (out, " CLASS "); | |
1693 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1694 | } | |
775cabad | 1695 | |
252b5132 RH |
1696 | if (pe_def_file->section_defs[i].flag_read) |
1697 | fprintf (out, " READ"); | |
775cabad | 1698 | |
252b5132 RH |
1699 | if (pe_def_file->section_defs[i].flag_write) |
1700 | fprintf (out, " WRITE"); | |
775cabad | 1701 | |
252b5132 RH |
1702 | if (pe_def_file->section_defs[i].flag_execute) |
1703 | fprintf (out, " EXECUTE"); | |
775cabad | 1704 | |
252b5132 RH |
1705 | if (pe_def_file->section_defs[i].flag_shared) |
1706 | fprintf (out, " SHARED"); | |
775cabad | 1707 | |
252b5132 RH |
1708 | fprintf (out, "\n"); |
1709 | } | |
1710 | } | |
1711 | ||
1712 | if (pe_def_file->num_exports > 0) | |
1713 | { | |
b044cda1 | 1714 | fprintf (out, "EXPORTS\n"); |
775cabad | 1715 | |
252b5132 RH |
1716 | for (i = 0; i < pe_def_file->num_exports; i++) |
1717 | { | |
1718 | def_file_export *e = pe_def_file->exports + i; | |
1719 | fprintf (out, " "); | |
1720 | quoteput (e->name, out, 0); | |
775cabad | 1721 | |
252b5132 RH |
1722 | if (e->internal_name && strcmp (e->internal_name, e->name)) |
1723 | { | |
1724 | fprintf (out, " = "); | |
1725 | quoteput (e->internal_name, out, 0); | |
1726 | } | |
775cabad | 1727 | |
252b5132 RH |
1728 | if (e->ordinal != -1) |
1729 | fprintf (out, " @%d", e->ordinal); | |
775cabad | 1730 | |
252b5132 RH |
1731 | if (e->flag_private) |
1732 | fprintf (out, " PRIVATE"); | |
775cabad | 1733 | |
252b5132 RH |
1734 | if (e->flag_constant) |
1735 | fprintf (out, " CONSTANT"); | |
775cabad | 1736 | |
252b5132 RH |
1737 | if (e->flag_noname) |
1738 | fprintf (out, " NONAME"); | |
775cabad | 1739 | |
252b5132 RH |
1740 | if (e->flag_data) |
1741 | fprintf (out, " DATA"); | |
1742 | ||
1743 | fprintf (out, "\n"); | |
1744 | } | |
1745 | } | |
1746 | ||
1747 | if (pe_def_file->num_imports > 0) | |
1748 | { | |
1749 | fprintf (out, "\nIMPORTS\n\n"); | |
775cabad | 1750 | |
252b5132 RH |
1751 | for (i = 0; i < pe_def_file->num_imports; i++) |
1752 | { | |
1753 | def_file_import *im = pe_def_file->imports + i; | |
1754 | fprintf (out, " "); | |
775cabad | 1755 | |
252b5132 RH |
1756 | if (im->internal_name |
1757 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1758 | { | |
1759 | quoteput (im->internal_name, out, 0); | |
1760 | fprintf (out, " = "); | |
1761 | } | |
775cabad | 1762 | |
252b5132 RH |
1763 | quoteput (im->module->name, out, 0); |
1764 | fprintf (out, "."); | |
775cabad | 1765 | |
252b5132 RH |
1766 | if (im->name) |
1767 | quoteput (im->name, out, 0); | |
1768 | else | |
1769 | fprintf (out, "%d", im->ordinal); | |
775cabad | 1770 | |
7fcab871 KT |
1771 | if (im->its_name) |
1772 | { | |
1773 | fprintf (out, " == "); | |
1774 | quoteput (im->its_name, out, 0); | |
1775 | } | |
1776 | ||
252b5132 RH |
1777 | fprintf (out, "\n"); |
1778 | } | |
1779 | } | |
1780 | } | |
1781 | else | |
1782 | fprintf (out, _("; no contents available\n")); | |
1783 | ||
1784 | if (fclose (out) == EOF) | |
775cabad NC |
1785 | /* xgettext:c-format */ |
1786 | einfo (_("%P: Error closing file `%s'\n"), pe_out_def_filename); | |
252b5132 RH |
1787 | } |
1788 | ||
775cabad | 1789 | /* Generate the import library. */ |
252b5132 RH |
1790 | |
1791 | static asymbol **symtab; | |
1792 | static int symptr; | |
1793 | static int tmp_seq; | |
9382254d | 1794 | static int tmp_seq2; |
252b5132 RH |
1795 | static const char *dll_filename; |
1796 | static char *dll_symname; | |
1797 | ||
45dfa85a | 1798 | #define UNDSEC bfd_und_section_ptr |
252b5132 RH |
1799 | |
1800 | static asection * | |
1579bae1 | 1801 | quick_section (bfd *abfd, const char *name, int flags, int align) |
252b5132 RH |
1802 | { |
1803 | asection *sec; | |
1804 | asymbol *sym; | |
1805 | ||
1806 | sec = bfd_make_section_old_way (abfd, name); | |
86b1cc60 | 1807 | bfd_set_section_flags (abfd, sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP); |
252b5132 | 1808 | bfd_set_section_alignment (abfd, sec, align); |
86b1cc60 | 1809 | /* Remember to undo this before trying to link internally! */ |
252b5132 RH |
1810 | sec->output_section = sec; |
1811 | ||
1812 | sym = bfd_make_empty_symbol (abfd); | |
1813 | symtab[symptr++] = sym; | |
1814 | sym->name = sec->name; | |
1815 | sym->section = sec; | |
1816 | sym->flags = BSF_LOCAL; | |
1817 | sym->value = 0; | |
1818 | ||
1819 | return sec; | |
1820 | } | |
1821 | ||
1822 | static void | |
1579bae1 AM |
1823 | quick_symbol (bfd *abfd, |
1824 | const char *n1, | |
1825 | const char *n2, | |
1826 | const char *n3, | |
1827 | asection *sec, | |
1828 | int flags, | |
1829 | int addr) | |
252b5132 RH |
1830 | { |
1831 | asymbol *sym; | |
1579bae1 | 1832 | char *name = xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); |
775cabad | 1833 | |
252b5132 RH |
1834 | strcpy (name, n1); |
1835 | strcat (name, n2); | |
1836 | strcat (name, n3); | |
1837 | sym = bfd_make_empty_symbol (abfd); | |
1838 | sym->name = name; | |
1839 | sym->section = sec; | |
1840 | sym->flags = flags; | |
1841 | sym->value = addr; | |
1842 | symtab[symptr++] = sym; | |
1843 | } | |
1844 | ||
1845 | static arelent *reltab = 0; | |
1846 | static int relcount = 0, relsize = 0; | |
1847 | ||
1848 | static void | |
0ead4f8d | 1849 | quick_reloc (bfd *abfd, bfd_size_type address, int which_howto, int symidx) |
252b5132 | 1850 | { |
1579bae1 | 1851 | if (relcount >= relsize - 1) |
252b5132 RH |
1852 | { |
1853 | relsize += 10; | |
1854 | if (reltab) | |
1579bae1 | 1855 | reltab = xrealloc (reltab, relsize * sizeof (arelent)); |
252b5132 | 1856 | else |
1579bae1 | 1857 | reltab = xmalloc (relsize * sizeof (arelent)); |
252b5132 RH |
1858 | } |
1859 | reltab[relcount].address = address; | |
1860 | reltab[relcount].addend = 0; | |
1861 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
1862 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
1863 | relcount++; | |
1864 | } | |
1865 | ||
1866 | static void | |
1867 | save_relocs (asection *sec) | |
1868 | { | |
1869 | int i; | |
775cabad | 1870 | |
252b5132 RH |
1871 | sec->relocation = reltab; |
1872 | sec->reloc_count = relcount; | |
1579bae1 | 1873 | sec->orelocation = xmalloc ((relcount + 1) * sizeof (arelent *)); |
d643799d | 1874 | for (i = 0; i < relcount; i++) |
252b5132 RH |
1875 | sec->orelocation[i] = sec->relocation + i; |
1876 | sec->orelocation[relcount] = 0; | |
1877 | sec->flags |= SEC_RELOC; | |
1878 | reltab = 0; | |
1879 | relcount = relsize = 0; | |
1880 | } | |
1881 | ||
775cabad NC |
1882 | /* .section .idata$2 |
1883 | .global __head_my_dll | |
1884 | __head_my_dll: | |
1885 | .rva hname | |
1886 | .long 0 | |
1887 | .long 0 | |
1888 | .rva __my_dll_iname | |
1889 | .rva fthunk | |
b7a26f91 | 1890 | |
775cabad NC |
1891 | .section .idata$5 |
1892 | .long 0 | |
1893 | fthunk: | |
b7a26f91 | 1894 | |
775cabad NC |
1895 | .section .idata$4 |
1896 | .long 0 | |
1897 | hname: */ | |
252b5132 RH |
1898 | |
1899 | static bfd * | |
1579bae1 | 1900 | make_head (bfd *parent) |
252b5132 RH |
1901 | { |
1902 | asection *id2, *id5, *id4; | |
1903 | unsigned char *d2, *d5, *d4; | |
1904 | char *oname; | |
1905 | bfd *abfd; | |
1906 | ||
1579bae1 | 1907 | oname = xmalloc (20); |
252b5132 RH |
1908 | sprintf (oname, "d%06d.o", tmp_seq); |
1909 | tmp_seq++; | |
1910 | ||
1911 | abfd = bfd_create (oname, parent); | |
c6c37250 | 1912 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
1913 | bfd_make_writable (abfd); |
1914 | ||
1915 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 1916 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
1917 | |
1918 | symptr = 0; | |
1579bae1 | 1919 | symtab = xmalloc (6 * sizeof (asymbol *)); |
252b5132 RH |
1920 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
1921 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
1922 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
d643799d KH |
1923 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
1924 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
c6c37250 DD |
1925 | |
1926 | /* OK, pay attention here. I got confused myself looking back at | |
1927 | it. We create a four-byte section to mark the beginning of the | |
1928 | list, and we include an offset of 4 in the section, so that the | |
1929 | pointer to the list points to the *end* of this section, which is | |
5cc18311 | 1930 | the start of the list of sections from other objects. */ |
252b5132 RH |
1931 | |
1932 | bfd_set_section_size (abfd, id2, 20); | |
1579bae1 | 1933 | d2 = xmalloc (20); |
252b5132 RH |
1934 | id2->contents = d2; |
1935 | memset (d2, 0, 20); | |
ce11ba6c KT |
1936 | if (pe_use_nul_prefixed_import_tables) |
1937 | d2[0] = d2[16] = PE_IDATA5_SIZE; /* Reloc addend. */ | |
252b5132 RH |
1938 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
1939 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
1940 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
1941 | save_relocs (id2); | |
1942 | ||
ce11ba6c KT |
1943 | if (pe_use_nul_prefixed_import_tables) |
1944 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); | |
1945 | else | |
1946 | bfd_set_section_size (abfd, id5, 0); | |
99ad8390 | 1947 | d5 = xmalloc (PE_IDATA5_SIZE); |
252b5132 | 1948 | id5->contents = d5; |
99ad8390 | 1949 | memset (d5, 0, PE_IDATA5_SIZE); |
ce11ba6c KT |
1950 | if (pe_use_nul_prefixed_import_tables) |
1951 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); | |
1952 | else | |
1953 | bfd_set_section_size (abfd, id4, 0); | |
99ad8390 | 1954 | d4 = xmalloc (PE_IDATA4_SIZE); |
252b5132 | 1955 | id4->contents = d4; |
99ad8390 | 1956 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 RH |
1957 | |
1958 | bfd_set_symtab (abfd, symtab, symptr); | |
1959 | ||
1960 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
ce11ba6c KT |
1961 | if (pe_use_nul_prefixed_import_tables) |
1962 | { | |
1963 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
1964 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
1965 | } | |
1966 | else | |
1967 | { | |
1968 | bfd_set_section_contents (abfd, id5, d5, 0, 0); | |
1969 | bfd_set_section_contents (abfd, id4, d4, 0, 0); | |
1970 | } | |
5cc18311 | 1971 | |
252b5132 RH |
1972 | bfd_make_readable (abfd); |
1973 | return abfd; | |
1974 | } | |
1975 | ||
775cabad NC |
1976 | /* .section .idata$4 |
1977 | .long 0 | |
99ad8390 | 1978 | [.long 0] for PE+ |
775cabad NC |
1979 | .section .idata$5 |
1980 | .long 0 | |
99ad8390 | 1981 | [.long 0] for PE+ |
775cabad NC |
1982 | .section idata$7 |
1983 | .global __my_dll_iname | |
1984 | __my_dll_iname: | |
1985 | .asciz "my.dll" */ | |
252b5132 RH |
1986 | |
1987 | static bfd * | |
1579bae1 | 1988 | make_tail (bfd *parent) |
252b5132 RH |
1989 | { |
1990 | asection *id4, *id5, *id7; | |
1991 | unsigned char *d4, *d5, *d7; | |
1992 | int len; | |
1993 | char *oname; | |
1994 | bfd *abfd; | |
1995 | ||
1579bae1 | 1996 | oname = xmalloc (20); |
252b5132 RH |
1997 | sprintf (oname, "d%06d.o", tmp_seq); |
1998 | tmp_seq++; | |
1999 | ||
2000 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2001 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2002 | bfd_make_writable (abfd); |
2003 | ||
2004 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2005 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2006 | |
2007 | symptr = 0; | |
1579bae1 | 2008 | symtab = xmalloc (5 * sizeof (asymbol *)); |
252b5132 RH |
2009 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
2010 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2011 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
d643799d | 2012 | quick_symbol (abfd, U (""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 | 2013 | |
99ad8390 NC |
2014 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
2015 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 2016 | id4->contents = d4; |
99ad8390 | 2017 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 | 2018 | |
99ad8390 NC |
2019 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
2020 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 2021 | id5->contents = d5; |
99ad8390 | 2022 | memset (d5, 0, PE_IDATA5_SIZE); |
252b5132 | 2023 | |
d643799d | 2024 | len = strlen (dll_filename) + 1; |
252b5132 | 2025 | if (len & 1) |
d643799d | 2026 | len++; |
252b5132 | 2027 | bfd_set_section_size (abfd, id7, len); |
1579bae1 | 2028 | d7 = xmalloc (len); |
252b5132 | 2029 | id7->contents = d7; |
47639182 | 2030 | strcpy ((char *) d7, dll_filename); |
e916811a CF |
2031 | /* If len was odd, the above |
2032 | strcpy leaves behind an undefined byte. That is harmless, | |
2033 | but we set it to 0 just so the binary dumps are pretty. */ | |
2034 | d7[len - 1] = 0; | |
252b5132 RH |
2035 | |
2036 | bfd_set_symtab (abfd, symtab, symptr); | |
2037 | ||
99ad8390 NC |
2038 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); |
2039 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
252b5132 RH |
2040 | bfd_set_section_contents (abfd, id7, d7, 0, len); |
2041 | ||
2042 | bfd_make_readable (abfd); | |
2043 | return abfd; | |
2044 | } | |
2045 | ||
775cabad NC |
2046 | /* .text |
2047 | .global _function | |
2048 | .global ___imp_function | |
2049 | .global __imp__function | |
2050 | _function: | |
2051 | jmp *__imp__function: | |
b7a26f91 | 2052 | |
775cabad NC |
2053 | .section idata$7 |
2054 | .long __head_my_dll | |
b7a26f91 | 2055 | |
775cabad NC |
2056 | .section .idata$5 |
2057 | ___imp_function: | |
2058 | __imp__function: | |
2059 | iat? | |
2060 | .section .idata$4 | |
2061 | iat? | |
2062 | .section .idata$6 | |
2063 | ID<ordinal>: | |
2064 | .short <hint> | |
2065 | .asciz "function" xlate? (add underscore, kill at) */ | |
2066 | ||
e916811a | 2067 | static const unsigned char jmp_ix86_bytes[] = |
775cabad | 2068 | { |
252b5132 RH |
2069 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 |
2070 | }; | |
2071 | ||
775cabad NC |
2072 | /* _function: |
2073 | mov.l ip+8,r0 | |
2074 | mov.l @r0,r0 | |
2075 | jmp @r0 | |
2076 | nop | |
2077 | .dw __imp_function */ | |
344a211f | 2078 | |
e916811a | 2079 | static const unsigned char jmp_sh_bytes[] = |
775cabad | 2080 | { |
344a211f NC |
2081 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 |
2082 | }; | |
2083 | ||
775cabad NC |
2084 | /* _function: |
2085 | lui $t0,<high:__imp_function> | |
2086 | lw $t0,<low:__imp_function> | |
2087 | jr $t0 | |
2088 | nop */ | |
344a211f | 2089 | |
e916811a | 2090 | static const unsigned char jmp_mips_bytes[] = |
775cabad | 2091 | { |
344a211f NC |
2092 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, |
2093 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
2094 | }; | |
252b5132 | 2095 | |
e916811a | 2096 | static const unsigned char jmp_arm_bytes[] = |
53baae48 NC |
2097 | { |
2098 | 0x00, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */ | |
2099 | 0x00, 0xf0, 0x9c, 0xe5, /* ldr pc, [ip] */ | |
2100 | 0, 0, 0, 0 | |
2101 | }; | |
2102 | ||
2103 | ||
252b5132 | 2104 | static bfd * |
54727719 | 2105 | make_one (def_file_export *exp, bfd *parent, bfd_boolean include_jmp_stub) |
252b5132 RH |
2106 | { |
2107 | asection *tx, *id7, *id5, *id4, *id6; | |
23a87948 | 2108 | unsigned char *td = NULL, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
2109 | int len; |
2110 | char *oname; | |
2111 | bfd *abfd; | |
e916811a | 2112 | const unsigned char *jmp_bytes = NULL; |
f0c87f88 | 2113 | int jmp_byte_count = 0; |
c6c37250 | 2114 | |
54727719 NC |
2115 | /* Include the jump stub section only if it is needed. A jump |
2116 | stub is needed if the symbol being imported <sym> is a function | |
2117 | symbol and there is at least one undefined reference to that | |
2118 | symbol. In other words, if all the import references to <sym> are | |
2119 | explicitly through _declspec(dllimport) then the jump stub is not | |
2120 | needed. */ | |
2121 | if (include_jmp_stub) | |
c6c37250 | 2122 | { |
54727719 NC |
2123 | switch (pe_details->pe_arch) |
2124 | { | |
2125 | case PE_ARCH_i386: | |
2126 | jmp_bytes = jmp_ix86_bytes; | |
2127 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
2128 | break; | |
2129 | case PE_ARCH_sh: | |
2130 | jmp_bytes = jmp_sh_bytes; | |
2131 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
2132 | break; | |
2133 | case PE_ARCH_mips: | |
2134 | jmp_bytes = jmp_mips_bytes; | |
2135 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
2136 | break; | |
2137 | case PE_ARCH_arm: | |
2138 | case PE_ARCH_arm_epoc: | |
2139 | case PE_ARCH_arm_wince: | |
2140 | jmp_bytes = jmp_arm_bytes; | |
2141 | jmp_byte_count = sizeof (jmp_arm_bytes); | |
2142 | break; | |
2143 | default: | |
2144 | abort (); | |
2145 | } | |
c6c37250 | 2146 | } |
252b5132 | 2147 | |
1579bae1 | 2148 | oname = xmalloc (20); |
252b5132 RH |
2149 | sprintf (oname, "d%06d.o", tmp_seq); |
2150 | tmp_seq++; | |
2151 | ||
2152 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2153 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2154 | bfd_make_writable (abfd); |
2155 | ||
2156 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2157 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2158 | |
2159 | symptr = 0; | |
17299ac7 NC |
2160 | symtab = xmalloc (12 * sizeof (asymbol *)); |
2161 | ||
2162 | tx = quick_section (abfd, ".text", SEC_CODE | SEC_HAS_CONTENTS | SEC_READONLY, 2); | |
252b5132 RH |
2163 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); |
2164 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2165 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
2166 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
b34976b6 | 2167 | |
c9e38879 NC |
2168 | if (*exp->internal_name == '@') |
2169 | { | |
1579bae1 AM |
2170 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2171 | BSF_GLOBAL, 0); | |
54727719 | 2172 | if (include_jmp_stub) |
4b7f0676 | 2173 | quick_symbol (abfd, "", exp->internal_name, "", tx, BSF_GLOBAL, 0); |
00479ba8 | 2174 | quick_symbol (abfd, "__imp_", exp->internal_name, "", id5, |
1579bae1 | 2175 | BSF_GLOBAL, 0); |
c9e38879 NC |
2176 | /* Fastcall applies only to functions, |
2177 | so no need for auto-import symbol. */ | |
2178 | } | |
2179 | else | |
2180 | { | |
4b7f0676 NC |
2181 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2182 | BSF_GLOBAL, 0); | |
54727719 | 2183 | if (include_jmp_stub) |
1579bae1 AM |
2184 | quick_symbol (abfd, U (""), exp->internal_name, "", tx, |
2185 | BSF_GLOBAL, 0); | |
00479ba8 | 2186 | quick_symbol (abfd, "__imp_", U (""), exp->internal_name, id5, |
1579bae1 | 2187 | BSF_GLOBAL, 0); |
c9e38879 | 2188 | /* Symbol to reference ord/name of imported |
1579bae1 | 2189 | data symbol, used to implement auto-import. */ |
c9e38879 | 2190 | if (exp->flag_data) |
17f73277 | 2191 | quick_symbol (abfd, "__nm_", U (""), exp->internal_name, id6, |
1579bae1 | 2192 | BSF_GLOBAL,0); |
c9e38879 | 2193 | } |
870df5dc | 2194 | if (pe_dll_compat_implib) |
17f73277 | 2195 | quick_symbol (abfd, "___imp_", exp->internal_name, "", id5, |
1579bae1 | 2196 | BSF_GLOBAL, 0); |
252b5132 | 2197 | |
54727719 | 2198 | if (include_jmp_stub) |
775cabad NC |
2199 | { |
2200 | bfd_set_section_size (abfd, tx, jmp_byte_count); | |
1579bae1 | 2201 | td = xmalloc (jmp_byte_count); |
775cabad NC |
2202 | tx->contents = td; |
2203 | memcpy (td, jmp_bytes, jmp_byte_count); | |
2204 | ||
2205 | switch (pe_details->pe_arch) | |
2206 | { | |
2207 | case PE_ARCH_i386: | |
591a748a NC |
2208 | #ifdef pe_use_x86_64 |
2209 | quick_reloc (abfd, 2, BFD_RELOC_32_PCREL, 2); | |
2210 | #else | |
17299ac7 NC |
2211 | /* Mark this object as SAFESEH compatible. */ |
2212 | quick_symbol (abfd, "", "@feat.00", "", bfd_abs_section_ptr, | |
2213 | BSF_LOCAL, 1); | |
591a748a NC |
2214 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); |
2215 | #endif | |
775cabad NC |
2216 | break; |
2217 | case PE_ARCH_sh: | |
2218 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
2219 | break; | |
2220 | case PE_ARCH_mips: | |
2221 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
2222 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
2223 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
2224 | break; | |
53baae48 | 2225 | case PE_ARCH_arm: |
7148cc28 NC |
2226 | case PE_ARCH_arm_epoc: |
2227 | case PE_ARCH_arm_wince: | |
53baae48 NC |
2228 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); |
2229 | break; | |
775cabad NC |
2230 | default: |
2231 | abort (); | |
2232 | } | |
2233 | save_relocs (tx); | |
2234 | } | |
54727719 NC |
2235 | else |
2236 | bfd_set_section_size (abfd, tx, 0); | |
252b5132 RH |
2237 | |
2238 | bfd_set_section_size (abfd, id7, 4); | |
1579bae1 | 2239 | d7 = xmalloc (4); |
252b5132 RH |
2240 | id7->contents = d7; |
2241 | memset (d7, 0, 4); | |
4b7f0676 | 2242 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 5); |
252b5132 RH |
2243 | save_relocs (id7); |
2244 | ||
99ad8390 NC |
2245 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
2246 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 2247 | id5->contents = d5; |
99ad8390 | 2248 | memset (d5, 0, PE_IDATA5_SIZE); |
775cabad | 2249 | |
252b5132 RH |
2250 | if (exp->flag_noname) |
2251 | { | |
2252 | d5[0] = exp->ordinal; | |
2253 | d5[1] = exp->ordinal >> 8; | |
99ad8390 | 2254 | d5[PE_IDATA5_SIZE - 1] = 0x80; |
252b5132 RH |
2255 | } |
2256 | else | |
2257 | { | |
2258 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2259 | save_relocs (id5); | |
2260 | } | |
2261 | ||
99ad8390 NC |
2262 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
2263 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 2264 | id4->contents = d4; |
99ad8390 | 2265 | memset (d4, 0, PE_IDATA4_SIZE); |
775cabad | 2266 | |
252b5132 RH |
2267 | if (exp->flag_noname) |
2268 | { | |
c2a94a7a DD |
2269 | d4[0] = exp->ordinal; |
2270 | d4[1] = exp->ordinal >> 8; | |
99ad8390 | 2271 | d4[PE_IDATA4_SIZE - 1] = 0x80; |
252b5132 RH |
2272 | } |
2273 | else | |
2274 | { | |
2275 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2276 | save_relocs (id4); | |
2277 | } | |
2278 | ||
2279 | if (exp->flag_noname) | |
2280 | { | |
2281 | len = 0; | |
2282 | bfd_set_section_size (abfd, id6, 0); | |
2283 | } | |
2284 | else | |
2285 | { | |
4ee1d7e4 R |
2286 | int ord; |
2287 | ||
e916811a | 2288 | /* { short, asciz } */ |
7fcab871 KT |
2289 | if (exp->its_name) |
2290 | len = 2 + strlen (exp->its_name) + 1; | |
2291 | else | |
2292 | len = 2 + strlen (exp->name) + 1; | |
252b5132 RH |
2293 | if (len & 1) |
2294 | len++; | |
2295 | bfd_set_section_size (abfd, id6, len); | |
1579bae1 | 2296 | d6 = xmalloc (len); |
252b5132 RH |
2297 | id6->contents = d6; |
2298 | memset (d6, 0, len); | |
4ee1d7e4 R |
2299 | |
2300 | /* PR 20880: Use exp->hint as a backup, just in case exp->ordinal | |
2301 | contains an invalid value (-1). */ | |
2302 | ord = (exp->ordinal >= 0) ? exp->ordinal : exp->hint; | |
2303 | d6[0] = ord; | |
2304 | d6[1] = ord >> 8; | |
2305 | ||
7fcab871 KT |
2306 | if (exp->its_name) |
2307 | strcpy ((char*) d6 + 2, exp->its_name); | |
2308 | else | |
2309 | strcpy ((char *) d6 + 2, exp->name); | |
252b5132 RH |
2310 | } |
2311 | ||
2312 | bfd_set_symtab (abfd, symtab, symptr); | |
2313 | ||
54727719 NC |
2314 | if (include_jmp_stub) |
2315 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); | |
252b5132 | 2316 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
99ad8390 NC |
2317 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); |
2318 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
252b5132 RH |
2319 | if (!exp->flag_noname) |
2320 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
2321 | ||
2322 | bfd_make_readable (abfd); | |
2323 | return abfd; | |
2324 | } | |
2325 | ||
9382254d KT |
2326 | static bfd * |
2327 | make_singleton_name_imp (const char *import, bfd *parent) | |
2328 | { | |
2329 | /* Name thunks go to idata$4. */ | |
2330 | asection *id5; | |
2331 | unsigned char *d5; | |
2332 | char *oname; | |
2333 | bfd *abfd; | |
2334 | ||
2335 | oname = xmalloc (20); | |
2336 | sprintf (oname, "nmimp%06d.o", tmp_seq2); | |
2337 | tmp_seq2++; | |
2338 | ||
2339 | abfd = bfd_create (oname, parent); | |
2340 | bfd_find_target (pe_details->object_target, abfd); | |
2341 | bfd_make_writable (abfd); | |
2342 | ||
2343 | bfd_set_format (abfd, bfd_object); | |
2344 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2345 | ||
2346 | symptr = 0; | |
2347 | symtab = xmalloc (3 * sizeof (asymbol *)); | |
2348 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
17f73277 | 2349 | quick_symbol (abfd, "__imp_", import, "", id5, BSF_GLOBAL, 0); |
9382254d KT |
2350 | |
2351 | /* We need space for the real thunk and for the null terminator. */ | |
2352 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE * 2); | |
2353 | d5 = xmalloc (PE_IDATA5_SIZE * 2); | |
2354 | id5->contents = d5; | |
2355 | memset (d5, 0, PE_IDATA5_SIZE * 2); | |
2356 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); | |
2357 | save_relocs (id5); | |
2358 | ||
2359 | bfd_set_symtab (abfd, symtab, symptr); | |
2360 | ||
2361 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA4_SIZE * 2); | |
2362 | ||
2363 | bfd_make_readable (abfd); | |
2364 | return abfd; | |
2365 | } | |
2366 | ||
b044cda1 | 2367 | static bfd * |
1579bae1 | 2368 | make_singleton_name_thunk (const char *import, bfd *parent) |
b044cda1 | 2369 | { |
775cabad | 2370 | /* Name thunks go to idata$4. */ |
b044cda1 CW |
2371 | asection *id4; |
2372 | unsigned char *d4; | |
2373 | char *oname; | |
2374 | bfd *abfd; | |
2375 | ||
1579bae1 | 2376 | oname = xmalloc (20); |
b044cda1 CW |
2377 | sprintf (oname, "nmth%06d.o", tmp_seq); |
2378 | tmp_seq++; | |
2379 | ||
2380 | abfd = bfd_create (oname, parent); | |
2381 | bfd_find_target (pe_details->object_target, abfd); | |
2382 | bfd_make_writable (abfd); | |
2383 | ||
2384 | bfd_set_format (abfd, bfd_object); | |
2385 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2386 | ||
2387 | symptr = 0; | |
1579bae1 | 2388 | symtab = xmalloc (3 * sizeof (asymbol *)); |
b044cda1 | 2389 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
17f73277 KT |
2390 | quick_symbol (abfd, "__nm_thnk_", import, "", id4, BSF_GLOBAL, 0); |
2391 | quick_symbol (abfd, "__nm_", import, "", UNDSEC, BSF_GLOBAL, 0); | |
b044cda1 | 2392 | |
4e986257 CF |
2393 | /* We need space for the real thunk and for the null terminator. */ |
2394 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE * 2); | |
2395 | d4 = xmalloc (PE_IDATA4_SIZE * 2); | |
b044cda1 | 2396 | id4->contents = d4; |
4e986257 | 2397 | memset (d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2398 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
2399 | save_relocs (id4); | |
2400 | ||
2401 | bfd_set_symtab (abfd, symtab, symptr); | |
2402 | ||
4e986257 | 2403 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2404 | |
2405 | bfd_make_readable (abfd); | |
2406 | return abfd; | |
2407 | } | |
2408 | ||
2409 | static char * | |
fbea1508 | 2410 | make_import_fixup_mark (arelent *rel, char *name) |
b044cda1 | 2411 | { |
775cabad | 2412 | /* We convert reloc to symbol, for later reference. */ |
fbea1508 | 2413 | static unsigned int counter; |
fc0a2244 | 2414 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b044cda1 | 2415 | bfd *abfd = bfd_asymbol_bfd (sym); |
fe213ce2 | 2416 | struct bfd_link_hash_entry *bh; |
fbea1508 AM |
2417 | char *fixup_name, buf[26]; |
2418 | size_t prefix_len; | |
b044cda1 | 2419 | |
fbea1508 AM |
2420 | /* "name" buffer has space before the symbol name for prefixes. */ |
2421 | sprintf (buf, "__fu%d_", counter++); | |
2422 | prefix_len = strlen (buf); | |
2423 | fixup_name = name - prefix_len; | |
2424 | memcpy (fixup_name, buf, prefix_len); | |
b044cda1 | 2425 | |
fe213ce2 | 2426 | bh = NULL; |
b7a26f91 | 2427 | bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL, |
b044cda1 | 2428 | current_sec, /* sym->section, */ |
b34976b6 | 2429 | rel->address, NULL, TRUE, FALSE, &bh); |
fe213ce2 | 2430 | |
b044cda1 CW |
2431 | return fixup_name; |
2432 | } | |
2433 | ||
53baae48 | 2434 | /* .section .idata$2 |
775cabad NC |
2435 | .rva __nm_thnk_SYM (singleton thunk with name of func) |
2436 | .long 0 | |
2437 | .long 0 | |
2438 | .rva __my_dll_iname (name of dll) | |
2439 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
b044cda1 CW |
2440 | |
2441 | static bfd * | |
1579bae1 AM |
2442 | make_import_fixup_entry (const char *name, |
2443 | const char *fixup_name, | |
91d6fa6a | 2444 | const char *symname, |
1579bae1 | 2445 | bfd *parent) |
b044cda1 | 2446 | { |
53baae48 NC |
2447 | asection *id2; |
2448 | unsigned char *d2; | |
b044cda1 CW |
2449 | char *oname; |
2450 | bfd *abfd; | |
2451 | ||
1579bae1 | 2452 | oname = xmalloc (20); |
b044cda1 CW |
2453 | sprintf (oname, "fu%06d.o", tmp_seq); |
2454 | tmp_seq++; | |
2455 | ||
2456 | abfd = bfd_create (oname, parent); | |
2457 | bfd_find_target (pe_details->object_target, abfd); | |
2458 | bfd_make_writable (abfd); | |
2459 | ||
2460 | bfd_set_format (abfd, bfd_object); | |
2461 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2462 | ||
2463 | symptr = 0; | |
1579bae1 | 2464 | symtab = xmalloc (6 * sizeof (asymbol *)); |
53baae48 | 2465 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
775cabad | 2466 | |
17f73277 | 2467 | quick_symbol (abfd, "__nm_thnk_", name, "", UNDSEC, BSF_GLOBAL, 0); |
91d6fa6a | 2468 | quick_symbol (abfd, U (""), symname, "_iname", UNDSEC, BSF_GLOBAL, 0); |
1b610c93 | 2469 | /* For relocator v2 we have to use the .idata$5 element and not |
9382254d KT |
2470 | fixup_name. */ |
2471 | if (link_info.pei386_runtime_pseudo_reloc == 2) | |
17f73277 | 2472 | quick_symbol (abfd, "__imp_", name, "", UNDSEC, BSF_GLOBAL, 0); |
9382254d KT |
2473 | else |
2474 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
b044cda1 | 2475 | |
53baae48 NC |
2476 | bfd_set_section_size (abfd, id2, 20); |
2477 | d2 = xmalloc (20); | |
2478 | id2->contents = d2; | |
2479 | memset (d2, 0, 20); | |
b044cda1 CW |
2480 | |
2481 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2482 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 2); | |
2483 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 3); | |
53baae48 | 2484 | save_relocs (id2); |
b044cda1 CW |
2485 | |
2486 | bfd_set_symtab (abfd, symtab, symptr); | |
2487 | ||
53baae48 | 2488 | bfd_set_section_contents (abfd, id2, d2, 0, 20); |
b044cda1 CW |
2489 | |
2490 | bfd_make_readable (abfd); | |
2491 | return abfd; | |
2492 | } | |
2493 | ||
2fa9fc65 NC |
2494 | /* .section .rdata_runtime_pseudo_reloc |
2495 | .long addend | |
2496 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
2497 | ||
2498 | static bfd * | |
1579bae1 AM |
2499 | make_runtime_pseudo_reloc (const char *name ATTRIBUTE_UNUSED, |
2500 | const char *fixup_name, | |
6cb442d3 KT |
2501 | bfd_vma addend ATTRIBUTE_UNUSED, |
2502 | bfd_vma bitsize, | |
1579bae1 | 2503 | bfd *parent) |
2fa9fc65 NC |
2504 | { |
2505 | asection *rt_rel; | |
2506 | unsigned char *rt_rel_d; | |
2507 | char *oname; | |
2508 | bfd *abfd; | |
1579bae1 | 2509 | oname = xmalloc (20); |
2fa9fc65 NC |
2510 | sprintf (oname, "rtr%06d.o", tmp_seq); |
2511 | tmp_seq++; | |
2512 | ||
2513 | abfd = bfd_create (oname, parent); | |
2514 | bfd_find_target (pe_details->object_target, abfd); | |
2515 | bfd_make_writable (abfd); | |
2516 | ||
2517 | bfd_set_format (abfd, bfd_object); | |
2518 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2519 | ||
2520 | symptr = 0; | |
acac4c69 KT |
2521 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2522 | { | |
2523 | symtab = xmalloc ((runtime_pseudp_reloc_v2_init ? 3 : 6) * sizeof (asymbol *)); | |
2524 | } | |
2525 | else | |
2526 | { | |
2527 | symtab = xmalloc (2 * sizeof (asymbol *)); | |
2528 | } | |
1579bae1 AM |
2529 | rt_rel = quick_section (abfd, ".rdata_runtime_pseudo_reloc", |
2530 | SEC_HAS_CONTENTS, 2); | |
2fa9fc65 NC |
2531 | |
2532 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2533 | ||
6cb442d3 KT |
2534 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2535 | { | |
2536 | size_t size = 12; | |
2537 | if (! runtime_pseudp_reloc_v2_init) | |
2538 | { | |
2539 | size += 12; | |
2540 | runtime_pseudp_reloc_v2_init = 1; | |
2541 | } | |
17f73277 | 2542 | quick_symbol (abfd, "__imp_", name, "", UNDSEC, BSF_GLOBAL, 0); |
6cb442d3 KT |
2543 | |
2544 | bfd_set_section_size (abfd, rt_rel, size); | |
2545 | rt_rel_d = xmalloc (size); | |
2546 | rt_rel->contents = rt_rel_d; | |
2547 | memset (rt_rel_d, 0, size); | |
2548 | quick_reloc (abfd, size - 8, BFD_RELOC_RVA, 1); | |
2549 | quick_reloc (abfd, size - 12, BFD_RELOC_RVA, 2); | |
2550 | bfd_put_32 (abfd, bitsize, rt_rel_d + (size - 4)); | |
2551 | if (size != 12) | |
2552 | bfd_put_32 (abfd, 1, rt_rel_d + 8); | |
2553 | save_relocs (rt_rel); | |
2554 | ||
2555 | bfd_set_symtab (abfd, symtab, symptr); | |
2556 | ||
2557 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, size); | |
2558 | } | |
2559 | else | |
2560 | { | |
2561 | bfd_set_section_size (abfd, rt_rel, 8); | |
2562 | rt_rel_d = xmalloc (8); | |
2563 | rt_rel->contents = rt_rel_d; | |
2564 | memset (rt_rel_d, 0, 8); | |
2fa9fc65 | 2565 | |
6cb442d3 KT |
2566 | bfd_put_32 (abfd, addend, rt_rel_d); |
2567 | quick_reloc (abfd, 4, BFD_RELOC_RVA, 1); | |
2fa9fc65 | 2568 | |
6cb442d3 | 2569 | save_relocs (rt_rel); |
2fa9fc65 | 2570 | |
6cb442d3 | 2571 | bfd_set_symtab (abfd, symtab, symptr); |
2fa9fc65 | 2572 | |
6cb442d3 KT |
2573 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, 8); |
2574 | } | |
2fa9fc65 NC |
2575 | bfd_make_readable (abfd); |
2576 | return abfd; | |
2577 | } | |
2578 | ||
2579 | /* .section .rdata | |
a35bc64f | 2580 | .rva __pei386_runtime_relocator */ |
2fa9fc65 NC |
2581 | |
2582 | static bfd * | |
1579bae1 | 2583 | pe_create_runtime_relocator_reference (bfd *parent) |
2fa9fc65 NC |
2584 | { |
2585 | asection *extern_rt_rel; | |
2586 | unsigned char *extern_rt_rel_d; | |
2587 | char *oname; | |
2588 | bfd *abfd; | |
2589 | ||
1579bae1 | 2590 | oname = xmalloc (20); |
2fa9fc65 NC |
2591 | sprintf (oname, "ertr%06d.o", tmp_seq); |
2592 | tmp_seq++; | |
2593 | ||
2594 | abfd = bfd_create (oname, parent); | |
2595 | bfd_find_target (pe_details->object_target, abfd); | |
2596 | bfd_make_writable (abfd); | |
2597 | ||
2598 | bfd_set_format (abfd, bfd_object); | |
2599 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2600 | ||
2601 | symptr = 0; | |
1579bae1 | 2602 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2fa9fc65 NC |
2603 | extern_rt_rel = quick_section (abfd, ".rdata", SEC_HAS_CONTENTS, 2); |
2604 | ||
00479ba8 | 2605 | quick_symbol (abfd, "", U ("_pei386_runtime_relocator"), "", UNDSEC, |
1579bae1 | 2606 | BSF_NO_FLAGS, 0); |
2fa9fc65 | 2607 | |
9382254d | 2608 | bfd_set_section_size (abfd, extern_rt_rel, PE_IDATA5_SIZE); |
8d5c4b7b | 2609 | extern_rt_rel_d = xcalloc (1, PE_IDATA5_SIZE); |
2fa9fc65 NC |
2610 | extern_rt_rel->contents = extern_rt_rel_d; |
2611 | ||
2612 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2613 | save_relocs (extern_rt_rel); | |
2614 | ||
2615 | bfd_set_symtab (abfd, symtab, symptr); | |
2616 | ||
9382254d | 2617 | bfd_set_section_contents (abfd, extern_rt_rel, extern_rt_rel_d, 0, PE_IDATA5_SIZE); |
2fa9fc65 NC |
2618 | |
2619 | bfd_make_readable (abfd); | |
2620 | return abfd; | |
2621 | } | |
2622 | ||
b044cda1 | 2623 | void |
fbea1508 | 2624 | pe_create_import_fixup (arelent *rel, asection *s, bfd_vma addend, char *name) |
b044cda1 | 2625 | { |
fc0a2244 | 2626 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b044cda1 | 2627 | struct bfd_link_hash_entry *name_thunk_sym; |
9382254d | 2628 | struct bfd_link_hash_entry *name_imp_sym; |
fbea1508 | 2629 | char *fixup_name, *impname; |
2fa9fc65 | 2630 | bfd *b; |
9382254d KT |
2631 | int need_import_table = 1; |
2632 | ||
fbea1508 AM |
2633 | /* name buffer is allocated with space at beginning for prefixes. */ |
2634 | impname = name - (sizeof "__imp_" - 1); | |
2635 | memcpy (impname, "__imp_", sizeof "__imp_" - 1); | |
2636 | name_imp_sym = bfd_link_hash_lookup (link_info.hash, impname, 0, 0, 1); | |
b044cda1 | 2637 | |
fbea1508 AM |
2638 | impname = name - (sizeof "__nm_thnk_" - 1); |
2639 | memcpy (impname, "__nm_thnk_", sizeof "__nm_thnk_" - 1); | |
2640 | name_thunk_sym = bfd_link_hash_lookup (link_info.hash, impname, 0, 0, 1); | |
b044cda1 | 2641 | |
fbea1508 | 2642 | fixup_name = make_import_fixup_mark (rel, name); |
b044cda1 | 2643 | |
9382254d KT |
2644 | /* For version 2 pseudo relocation we don't need to add an import |
2645 | if the import symbol is already present. */ | |
2646 | if (link_info.pei386_runtime_pseudo_reloc == 2 | |
2647 | && name_imp_sym | |
2648 | && name_imp_sym->type == bfd_link_hash_defined) | |
2649 | need_import_table = 0; | |
2650 | ||
2651 | if (need_import_table == 1 | |
2652 | && (!name_thunk_sym || name_thunk_sym->type != bfd_link_hash_defined)) | |
b044cda1 | 2653 | { |
91d6fa6a | 2654 | b = make_singleton_name_thunk (name, link_info.output_bfd); |
b044cda1 CW |
2655 | add_bfd_to_link (b, b->filename, &link_info); |
2656 | ||
9382254d KT |
2657 | /* If we ever use autoimport, we have to cast text section writable. |
2658 | But not for version 2. */ | |
2659 | if (link_info.pei386_runtime_pseudo_reloc != 2) | |
2660 | { | |
2661 | config.text_read_only = FALSE; | |
2662 | link_info.output_bfd->flags &= ~WP_TEXT; | |
2663 | } | |
2664 | if (link_info.pei386_runtime_pseudo_reloc == 2) | |
2665 | { | |
2666 | b = make_singleton_name_imp (name, link_info.output_bfd); | |
2667 | add_bfd_to_link (b, b->filename, &link_info); | |
2668 | } | |
b044cda1 CW |
2669 | } |
2670 | ||
9382254d KT |
2671 | if ((addend == 0 || link_info.pei386_runtime_pseudo_reloc) |
2672 | && need_import_table == 1) | |
2fa9fc65 NC |
2673 | { |
2674 | extern char * pe_data_import_dll; | |
91d6fa6a | 2675 | char * symname = pe_data_import_dll ? pe_data_import_dll : "unknown"; |
aa3d9aba | 2676 | |
91d6fa6a | 2677 | b = make_import_fixup_entry (name, fixup_name, symname, |
f13a99db | 2678 | link_info.output_bfd); |
2fa9fc65 NC |
2679 | add_bfd_to_link (b, b->filename, &link_info); |
2680 | } | |
2681 | ||
6cb442d3 KT |
2682 | if ((link_info.pei386_runtime_pseudo_reloc != 0 && addend != 0) |
2683 | || link_info.pei386_runtime_pseudo_reloc == 2) | |
2684 | { | |
2685 | if (pe_dll_extra_pe_debug) | |
2686 | printf ("creating runtime pseudo-reloc entry for %s (addend=%d)\n", | |
2687 | fixup_name, (int) addend); | |
2688 | ||
2689 | b = make_runtime_pseudo_reloc (name, fixup_name, addend, rel->howto->bitsize, | |
2690 | link_info.output_bfd); | |
2691 | add_bfd_to_link (b, b->filename, &link_info); | |
2692 | ||
2693 | if (runtime_pseudo_relocs_created == 0) | |
2694 | { | |
2695 | b = pe_create_runtime_relocator_reference (link_info.output_bfd); | |
2696 | add_bfd_to_link (b, b->filename, &link_info); | |
2697 | } | |
2698 | runtime_pseudo_relocs_created++; | |
2699 | } | |
2700 | else if (addend != 0) | |
611a3ca9 NC |
2701 | einfo (_("%P%X%C: variable '%T' can't be auto-imported. Please read the documentation for ld's --enable-auto-import for details.\n"), |
2702 | s->owner, s, rel->address, sym->name); | |
b044cda1 CW |
2703 | } |
2704 | ||
2705 | ||
252b5132 | 2706 | void |
e1c37eb5 | 2707 | pe_dll_generate_implib (def_file *def, const char *impfilename, struct bfd_link_info *info) |
252b5132 RH |
2708 | { |
2709 | int i; | |
2710 | bfd *ar_head; | |
2711 | bfd *ar_tail; | |
2712 | bfd *outarch; | |
e1c37eb5 | 2713 | bfd *ibfd; |
252b5132 RH |
2714 | bfd *head = 0; |
2715 | ||
5aaace27 | 2716 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 | 2717 | dll_symname = xstrdup (dll_filename); |
d643799d | 2718 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2719 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2720 | dll_symname[i] = '_'; |
2721 | ||
bb14f524 | 2722 | unlink_if_ordinary (impfilename); |
252b5132 RH |
2723 | |
2724 | outarch = bfd_openw (impfilename, 0); | |
2725 | ||
2726 | if (!outarch) | |
2727 | { | |
2728 | /* xgettext:c-format */ | |
611a3ca9 | 2729 | einfo (_("%P%X: Can't open .lib file: %s\n"), impfilename); |
252b5132 RH |
2730 | return; |
2731 | } | |
2732 | ||
cd6f1cf3 NC |
2733 | if (verbose) |
2734 | /* xgettext:c-format */ | |
2735 | info_msg (_("Creating library file: %s\n"), impfilename); | |
9382254d | 2736 | |
252b5132 RH |
2737 | bfd_set_format (outarch, bfd_archive); |
2738 | outarch->has_armap = 1; | |
2739 | ||
5cc18311 | 2740 | /* Work out a reasonable size of things to put onto one line. */ |
252b5132 | 2741 | ar_head = make_head (outarch); |
252b5132 | 2742 | |
e1c37eb5 | 2743 | /* Iterate the input BFDs, looking for exclude-modules-for-implib. */ |
c72f2fb2 | 2744 | for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next) |
e1c37eb5 DK |
2745 | { |
2746 | /* Iterate the exclude list. */ | |
2747 | struct exclude_list_struct *ex; | |
2748 | char found; | |
2749 | for (ex = excludes, found = 0; ex && !found; ex = ex->next) | |
2750 | { | |
2751 | if (ex->type != EXCLUDEFORIMPLIB) | |
2752 | continue; | |
42627821 | 2753 | found = (filename_cmp (ex->string, ibfd->filename) == 0); |
e1c37eb5 DK |
2754 | } |
2755 | /* If it matched, we must open a fresh BFD for it (the original | |
2756 | input BFD is still needed for the DLL's final link) and add | |
2757 | it into the archive member chain. */ | |
2758 | if (found) | |
2759 | { | |
9382254d | 2760 | bfd *newbfd = bfd_openr (ibfd->my_archive |
e1c37eb5 DK |
2761 | ? ibfd->my_archive->filename : ibfd->filename, NULL); |
2762 | if (!newbfd) | |
2763 | { | |
611a3ca9 | 2764 | einfo (_("%P%X: bfd_openr %s: %E\n"), ibfd->filename); |
e1c37eb5 DK |
2765 | return; |
2766 | } | |
2767 | if (ibfd->my_archive) | |
2768 | { | |
2769 | /* Must now iterate through archive until we find the | |
2770 | required member. A minor shame that we'll open the | |
2771 | archive once per member that we require from it, and | |
2772 | leak those archive bfds rather than reuse them. */ | |
2773 | bfd *arbfd = newbfd; | |
2774 | if (!bfd_check_format_matches (arbfd, bfd_archive, NULL)) | |
2775 | { | |
611a3ca9 | 2776 | einfo (_("%P%X: %s(%s): can't find member in non-archive file"), |
e1c37eb5 DK |
2777 | ibfd->my_archive->filename, ibfd->filename); |
2778 | return; | |
2779 | } | |
2780 | newbfd = NULL; | |
2781 | while ((newbfd = bfd_openr_next_archived_file (arbfd, newbfd)) != 0) | |
2782 | { | |
42627821 | 2783 | if (filename_cmp (newbfd->filename, ibfd->filename) == 0) |
e1c37eb5 DK |
2784 | break; |
2785 | } | |
2786 | if (!newbfd) | |
2787 | { | |
611a3ca9 | 2788 | einfo (_("%P%X: %s(%s): can't find member in archive"), |
e1c37eb5 DK |
2789 | ibfd->my_archive->filename, ibfd->filename); |
2790 | return; | |
2791 | } | |
2792 | } | |
2793 | newbfd->archive_next = head; | |
2794 | head = newbfd; | |
2795 | } | |
2796 | } | |
2797 | ||
d643799d | 2798 | for (i = 0; i < def->num_exports; i++) |
252b5132 | 2799 | { |
86b1cc60 | 2800 | /* The import library doesn't know about the internal name. */ |
252b5132 RH |
2801 | char *internal = def->exports[i].internal_name; |
2802 | bfd *n; | |
775cabad | 2803 | |
9382254d | 2804 | /* Don't add PRIVATE entries to import lib. */ |
ee31fbd0 NC |
2805 | if (pe_def_file->exports[i].flag_private) |
2806 | continue; | |
41f46ed9 | 2807 | |
252b5132 | 2808 | def->exports[i].internal_name = def->exports[i].name; |
41f46ed9 SKS |
2809 | |
2810 | /* PR 19803: If a symbol has been discard due to garbage | |
2811 | collection then do not create any exports for it. */ | |
2812 | { | |
2813 | struct coff_link_hash_entry *h; | |
2814 | ||
2815 | h = coff_link_hash_lookup (coff_hash_table (info), internal, | |
2816 | FALSE, FALSE, FALSE); | |
2817 | if (h != NULL | |
2818 | /* If the symbol is hidden and undefined then it | |
2819 | has been swept up by garbage collection. */ | |
2820 | && h->symbol_class == C_HIDDEN | |
2821 | && h->root.u.def.section == bfd_und_section_ptr) | |
2822 | continue; | |
2823 | ||
2824 | /* If necessary, check with an underscore prefix as well. */ | |
2825 | if (pe_details->underscored && internal[0] != '@') | |
2826 | { | |
2827 | char *name; | |
2828 | ||
2829 | name = xmalloc (strlen (internal) + 2); | |
2830 | sprintf (name, "_%s", internal); | |
2831 | ||
2832 | h = coff_link_hash_lookup (coff_hash_table (info), name, | |
2833 | FALSE, FALSE, FALSE); | |
2834 | free (name); | |
2835 | ||
2836 | if (h != NULL | |
2837 | /* If the symbol is hidden and undefined then it | |
2838 | has been swept up by garbage collection. */ | |
2839 | && h->symbol_class == C_HIDDEN | |
2840 | && h->root.u.def.section == bfd_und_section_ptr) | |
2841 | continue; | |
2842 | } | |
2843 | } | |
2844 | ||
54727719 NC |
2845 | n = make_one (def->exports + i, outarch, |
2846 | ! (def->exports + i)->flag_data); | |
cc481421 | 2847 | n->archive_next = head; |
252b5132 RH |
2848 | head = n; |
2849 | def->exports[i].internal_name = internal; | |
2850 | } | |
2851 | ||
c6c37250 DD |
2852 | ar_tail = make_tail (outarch); |
2853 | ||
2854 | if (ar_head == NULL || ar_tail == NULL) | |
2855 | return; | |
2856 | ||
86b1cc60 | 2857 | /* Now stick them all into the archive. */ |
cc481421 AM |
2858 | ar_head->archive_next = head; |
2859 | ar_tail->archive_next = ar_head; | |
252b5132 RH |
2860 | head = ar_tail; |
2861 | ||
2862 | if (! bfd_set_archive_head (outarch, head)) | |
611a3ca9 | 2863 | einfo ("%P%X: bfd_set_archive_head: %E\n"); |
5cc18311 | 2864 | |
252b5132 | 2865 | if (! bfd_close (outarch)) |
611a3ca9 | 2866 | einfo ("%P%X: bfd_close %s: %E\n", impfilename); |
252b5132 RH |
2867 | |
2868 | while (head != NULL) | |
2869 | { | |
cc481421 | 2870 | bfd *n = head->archive_next; |
252b5132 RH |
2871 | bfd_close (head); |
2872 | head = n; | |
2873 | } | |
2874 | } | |
2875 | ||
aeb1f0e8 KT |
2876 | static int undef_count = 0; |
2877 | ||
2878 | struct key_value | |
2879 | { | |
2880 | char *key; | |
2881 | const char *oname; | |
2882 | }; | |
2883 | ||
d66ac08f | 2884 | static struct key_value *udef_table; |
aeb1f0e8 KT |
2885 | |
2886 | static int undef_sort_cmp (const void *l1, const void *r1) | |
2887 | { | |
2888 | const struct key_value *l = l1; | |
2889 | const struct key_value *r = r1; | |
2890 | ||
2891 | return strcmp (l->key, r->key); | |
2892 | } | |
2893 | ||
2894 | static struct bfd_link_hash_entry * | |
2895 | pe_find_cdecl_alias_match (struct bfd_link_info *linfo, char *name) | |
2896 | { | |
2897 | struct bfd_link_hash_entry *h = NULL; | |
2898 | struct key_value *kv; | |
2899 | struct key_value key; | |
e1fa0163 | 2900 | char *at, *lname = xmalloc (strlen (name) + 3); |
e4492aa0 | 2901 | |
aeb1f0e8 KT |
2902 | strcpy (lname, name); |
2903 | ||
2904 | at = strchr (lname + (lname[0] == '@'), '@'); | |
2905 | if (at) | |
2906 | at[1] = 0; | |
2907 | ||
2908 | key.key = lname; | |
2909 | kv = bsearch (&key, udef_table, undef_count, sizeof (struct key_value), | |
2910 | undef_sort_cmp); | |
2911 | ||
2912 | if (kv) | |
2913 | { | |
2914 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
2915 | if (h->type == bfd_link_hash_undefined) | |
e1fa0163 | 2916 | goto return_h; |
aeb1f0e8 | 2917 | } |
e1fa0163 | 2918 | |
aeb1f0e8 | 2919 | if (lname[0] == '?') |
e1fa0163 NC |
2920 | goto return_NULL; |
2921 | ||
aeb1f0e8 KT |
2922 | if (at || lname[0] == '@') |
2923 | { | |
2924 | if (lname[0] == '@') | |
2925 | { | |
2926 | if (pe_details->underscored) | |
2927 | lname[0] = '_'; | |
2928 | else | |
2929 | strcpy (lname, lname + 1); | |
2930 | key.key = lname; | |
2931 | kv = bsearch (&key, udef_table, undef_count, | |
2932 | sizeof (struct key_value), undef_sort_cmp); | |
2933 | if (kv) | |
2934 | { | |
2935 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
2936 | if (h->type == bfd_link_hash_undefined) | |
e1fa0163 | 2937 | goto return_h; |
aeb1f0e8 KT |
2938 | } |
2939 | } | |
2940 | if (at) | |
2941 | *strchr (lname, '@') = 0; | |
2942 | key.key = lname; | |
2943 | kv = bsearch (&key, udef_table, undef_count, | |
2944 | sizeof (struct key_value), undef_sort_cmp); | |
2945 | if (kv) | |
2946 | { | |
2947 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
2948 | if (h->type == bfd_link_hash_undefined) | |
e1fa0163 | 2949 | goto return_h; |
aeb1f0e8 | 2950 | } |
e1fa0163 | 2951 | goto return_NULL; |
aeb1f0e8 KT |
2952 | } |
2953 | ||
2954 | strcat (lname, "@"); | |
2955 | key.key = lname; | |
2956 | kv = bsearch (&key, udef_table, undef_count, | |
2957 | sizeof (struct key_value), undef_sort_cmp); | |
2958 | ||
2959 | if (kv) | |
2960 | { | |
2961 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
2962 | if (h->type == bfd_link_hash_undefined) | |
e1fa0163 | 2963 | goto return_h; |
aeb1f0e8 KT |
2964 | } |
2965 | ||
2966 | if (lname[0] == '_' && pe_details->underscored) | |
2967 | lname[0] = '@'; | |
2968 | else | |
2969 | { | |
2970 | memmove (lname + 1, lname, strlen (lname) + 1); | |
2971 | lname[0] = '@'; | |
2972 | } | |
2973 | key.key = lname; | |
2974 | ||
2975 | kv = bsearch (&key, udef_table, undef_count, | |
2976 | sizeof (struct key_value), undef_sort_cmp); | |
2977 | ||
2978 | if (kv) | |
2979 | { | |
2980 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
2981 | if (h->type == bfd_link_hash_undefined) | |
e1fa0163 | 2982 | goto return_h; |
aeb1f0e8 | 2983 | } |
e4492aa0 | 2984 | |
e1fa0163 NC |
2985 | return_NULL: |
2986 | h = NULL; | |
2987 | return_h: | |
2988 | free (lname); | |
2989 | return h; | |
aeb1f0e8 | 2990 | } |
8a9eab9b KT |
2991 | |
2992 | static bfd_boolean | |
aeb1f0e8 KT |
2993 | pe_undef_count (struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED, |
2994 | void *inf ATTRIBUTE_UNUSED) | |
8a9eab9b | 2995 | { |
aeb1f0e8 KT |
2996 | if (h->type == bfd_link_hash_undefined) |
2997 | undef_count++; | |
2998 | return TRUE; | |
2999 | } | |
3000 | ||
3001 | static bfd_boolean | |
3002 | pe_undef_fill (struct bfd_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
3003 | { | |
3004 | if (h->type == bfd_link_hash_undefined) | |
8a9eab9b | 3005 | { |
aeb1f0e8 KT |
3006 | char *at; |
3007 | ||
3008 | udef_table[undef_count].key = xstrdup (h->root.string); | |
3009 | at = strchr (udef_table[undef_count].key | |
3010 | + (udef_table[undef_count].key[0] == '@'), '@'); | |
3011 | if (at) | |
3012 | at[1] = 0; | |
3013 | udef_table[undef_count].oname = h->root.string; | |
3014 | undef_count++; | |
8a9eab9b KT |
3015 | } |
3016 | return TRUE; | |
3017 | } | |
3018 | ||
aeb1f0e8 KT |
3019 | static void |
3020 | pe_create_undef_table (void) | |
8a9eab9b | 3021 | { |
aeb1f0e8 KT |
3022 | undef_count = 0; |
3023 | ||
3024 | /* count undefined symbols */ | |
3025 | ||
3026 | bfd_link_hash_traverse (link_info.hash, pe_undef_count, ""); | |
3027 | ||
3028 | /* create and fill the corresponding table */ | |
3029 | udef_table = xmalloc (undef_count * sizeof (struct key_value)); | |
3030 | ||
3031 | undef_count = 0; | |
3032 | bfd_link_hash_traverse (link_info.hash, pe_undef_fill, ""); | |
3033 | ||
3034 | /* sort items */ | |
3035 | qsort (udef_table, undef_count, sizeof (struct key_value), undef_sort_cmp); | |
8a9eab9b KT |
3036 | } |
3037 | ||
252b5132 | 3038 | static void |
91d6fa6a | 3039 | add_bfd_to_link (bfd *abfd, const char *name, struct bfd_link_info *linfo) |
252b5132 RH |
3040 | { |
3041 | lang_input_statement_type *fake_file; | |
775cabad | 3042 | |
252b5132 RH |
3043 | fake_file = lang_add_input_file (name, |
3044 | lang_input_file_is_fake_enum, | |
3045 | NULL); | |
3046 | fake_file->the_bfd = abfd; | |
3047 | ldlang_add_file (fake_file); | |
775cabad | 3048 | |
91d6fa6a | 3049 | if (!bfd_link_add_symbols (abfd, linfo)) |
611a3ca9 | 3050 | einfo ("%P%X: addsym %s: %E\n", name); |
252b5132 RH |
3051 | } |
3052 | ||
3053 | void | |
91d6fa6a | 3054 | pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *linfo) |
252b5132 | 3055 | { |
6e230cc2 | 3056 | int i, j; |
252b5132 | 3057 | def_file_module *module; |
6e230cc2 | 3058 | def_file_import *imp; |
775cabad | 3059 | |
d643799d | 3060 | pe_dll_id_target (bfd_get_target (output_bfd)); |
252b5132 RH |
3061 | |
3062 | if (!pe_def_file) | |
3063 | return; | |
3064 | ||
6e230cc2 KT |
3065 | imp = pe_def_file->imports; |
3066 | ||
aeb1f0e8 KT |
3067 | pe_create_undef_table (); |
3068 | ||
252b5132 RH |
3069 | for (module = pe_def_file->modules; module; module = module->next) |
3070 | { | |
6e230cc2 KT |
3071 | int do_this_dll = 0; |
3072 | ||
3073 | for (i = 0; i < pe_def_file->num_imports && imp[i].module != module; i++) | |
3074 | ; | |
3075 | if (i >= pe_def_file->num_imports) | |
3076 | continue; | |
252b5132 RH |
3077 | |
3078 | dll_filename = module->name; | |
3079 | dll_symname = xstrdup (module->name); | |
6e230cc2 KT |
3080 | for (j = 0; dll_symname[j]; j++) |
3081 | if (!ISALNUM (dll_symname[j])) | |
3082 | dll_symname[j] = '_'; | |
3083 | ||
3084 | for (; i < pe_def_file->num_imports && imp[i].module == module; i++) | |
3085 | { | |
3086 | def_file_export exp; | |
3087 | struct bfd_link_hash_entry *blhe; | |
3088 | int lead_at = (*imp[i].internal_name == '@'); | |
3089 | /* See if we need this import. */ | |
3090 | size_t len = strlen (imp[i].internal_name); | |
3091 | char *name = xmalloc (len + 2 + 6); | |
3092 | bfd_boolean include_jmp_stub = FALSE; | |
3093 | bfd_boolean is_cdecl = FALSE; | |
aeb1f0e8 KT |
3094 | bfd_boolean is_undef = FALSE; |
3095 | ||
6e230cc2 KT |
3096 | if (!lead_at && strchr (imp[i].internal_name, '@') == NULL) |
3097 | is_cdecl = TRUE; | |
3098 | ||
3099 | if (lead_at) | |
3100 | sprintf (name, "%s", imp[i].internal_name); | |
3101 | else | |
3102 | sprintf (name, "%s%s",U (""), imp[i].internal_name); | |
252b5132 | 3103 | |
6e230cc2 KT |
3104 | blhe = bfd_link_hash_lookup (linfo->hash, name, |
3105 | FALSE, FALSE, FALSE); | |
252b5132 | 3106 | |
6e230cc2 KT |
3107 | /* Include the jump stub for <sym> only if the <sym> |
3108 | is undefined. */ | |
3109 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) | |
3110 | { | |
3111 | if (lead_at) | |
3112 | sprintf (name, "%s%s", "__imp_", imp[i].internal_name); | |
3113 | else | |
3114 | sprintf (name, "%s%s%s", "__imp_", U (""), | |
3115 | imp[i].internal_name); | |
3116 | ||
3117 | blhe = bfd_link_hash_lookup (linfo->hash, name, | |
3118 | FALSE, FALSE, FALSE); | |
aeb1f0e8 KT |
3119 | if (blhe) |
3120 | is_undef = (blhe->type == bfd_link_hash_undefined); | |
6e230cc2 KT |
3121 | } |
3122 | else | |
aeb1f0e8 KT |
3123 | { |
3124 | include_jmp_stub = TRUE; | |
3125 | is_undef = (blhe->type == bfd_link_hash_undefined); | |
3126 | } | |
6e230cc2 | 3127 | |
aeb1f0e8 | 3128 | if (is_cdecl && (!blhe || (blhe && blhe->type != bfd_link_hash_undefined))) |
6e230cc2 KT |
3129 | { |
3130 | sprintf (name, "%s%s",U (""), imp[i].internal_name); | |
aeb1f0e8 | 3131 | blhe = pe_find_cdecl_alias_match (linfo, name); |
54727719 | 3132 | include_jmp_stub = TRUE; |
aeb1f0e8 KT |
3133 | if (blhe) |
3134 | is_undef = (blhe->type == bfd_link_hash_undefined); | |
6e230cc2 | 3135 | } |
54727719 | 3136 | |
6e230cc2 KT |
3137 | free (name); |
3138 | ||
aeb1f0e8 | 3139 | if (is_undef) |
6e230cc2 KT |
3140 | { |
3141 | bfd *one; | |
3142 | /* We do. */ | |
3143 | if (!do_this_dll) | |
3144 | { | |
3145 | bfd *ar_head = make_head (output_bfd); | |
3146 | add_bfd_to_link (ar_head, ar_head->filename, linfo); | |
3147 | do_this_dll = 1; | |
3148 | } | |
3149 | exp.internal_name = imp[i].internal_name; | |
3150 | exp.name = imp[i].name; | |
3151 | exp.its_name = imp[i].its_name; | |
3152 | exp.ordinal = imp[i].ordinal; | |
3153 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
3154 | exp.flag_private = 0; | |
3155 | exp.flag_constant = 0; | |
3156 | exp.flag_data = imp[i].data; | |
3157 | exp.flag_noname = exp.name ? 0 : 1; | |
3158 | one = make_one (&exp, output_bfd, (! exp.flag_data) && include_jmp_stub); | |
3159 | add_bfd_to_link (one, one->filename, linfo); | |
3160 | } | |
3161 | } | |
252b5132 RH |
3162 | if (do_this_dll) |
3163 | { | |
3164 | bfd *ar_tail = make_tail (output_bfd); | |
91d6fa6a | 3165 | add_bfd_to_link (ar_tail, ar_tail->filename, linfo); |
252b5132 RH |
3166 | } |
3167 | ||
3168 | free (dll_symname); | |
3169 | } | |
aeb1f0e8 KT |
3170 | |
3171 | while (undef_count) | |
3172 | { | |
3173 | --undef_count; | |
3174 | free (udef_table[undef_count].key); | |
3175 | } | |
3176 | free (udef_table); | |
252b5132 RH |
3177 | } |
3178 | ||
775cabad | 3179 | /* We were handed a *.DLL file. Parse it and turn it into a set of |
b34976b6 AM |
3180 | IMPORTS directives in the def file. Return TRUE if the file was |
3181 | handled, FALSE if not. */ | |
252b5132 RH |
3182 | |
3183 | static unsigned int | |
1579bae1 | 3184 | pe_get16 (bfd *abfd, int where) |
252b5132 RH |
3185 | { |
3186 | unsigned char b[2]; | |
775cabad | 3187 | |
db09f25b AM |
3188 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
3189 | bfd_bread (b, (bfd_size_type) 2, abfd); | |
d643799d | 3190 | return b[0] + (b[1] << 8); |
252b5132 RH |
3191 | } |
3192 | ||
3193 | static unsigned int | |
1579bae1 | 3194 | pe_get32 (bfd *abfd, int where) |
252b5132 RH |
3195 | { |
3196 | unsigned char b[4]; | |
775cabad | 3197 | |
db09f25b AM |
3198 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
3199 | bfd_bread (b, (bfd_size_type) 4, abfd); | |
d643799d | 3200 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
3201 | } |
3202 | ||
252b5132 | 3203 | static unsigned int |
1579bae1 | 3204 | pe_as32 (void *ptr) |
252b5132 RH |
3205 | { |
3206 | unsigned char *b = ptr; | |
775cabad | 3207 | |
d643799d | 3208 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
3209 | } |
3210 | ||
b34976b6 | 3211 | bfd_boolean |
1579bae1 | 3212 | pe_implied_import_dll (const char *filename) |
252b5132 RH |
3213 | { |
3214 | bfd *dll; | |
6ca0987a KT |
3215 | bfd_vma pe_header_offset, opthdr_ofs, num_entries, i; |
3216 | bfd_vma export_rva, export_size, nsections, secptr, expptr; | |
3217 | bfd_vma exp_funcbase; | |
47639182 AM |
3218 | unsigned char *expdata; |
3219 | char *erva; | |
c7e2358a | 3220 | bfd_vma name_rvas, nexp; |
91d6fa6a | 3221 | const char *dllname; |
939ba9d0 NC |
3222 | /* Initialization with start > end guarantees that is_data |
3223 | will not be set by mistake, and avoids compiler warning. */ | |
6ca0987a KT |
3224 | bfd_vma data_start = 1; |
3225 | bfd_vma data_end = 0; | |
3226 | bfd_vma rdata_start = 1; | |
3227 | bfd_vma rdata_end = 0; | |
3228 | bfd_vma bss_start = 1; | |
3229 | bfd_vma bss_end = 0; | |
252b5132 RH |
3230 | |
3231 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
5cc18311 | 3232 | the middle of the .rdata section. */ |
c6c37250 | 3233 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
3234 | if (!dll) |
3235 | { | |
611a3ca9 | 3236 | einfo ("%P%X: open %s: %E\n", filename); |
b34976b6 | 3237 | return FALSE; |
252b5132 | 3238 | } |
775cabad | 3239 | |
86b1cc60 | 3240 | /* PEI dlls seem to be bfd_objects. */ |
252b5132 RH |
3241 | if (!bfd_check_format (dll, bfd_object)) |
3242 | { | |
611a3ca9 | 3243 | einfo ("%P%X: %s: this doesn't appear to be a DLL\n", filename); |
b34976b6 | 3244 | return FALSE; |
252b5132 RH |
3245 | } |
3246 | ||
d0069cab | 3247 | /* Get pe_header, optional header and numbers of directory entries. */ |
252b5132 RH |
3248 | pe_header_offset = pe_get32 (dll, 0x3c); |
3249 | opthdr_ofs = pe_header_offset + 4 + 20; | |
99ad8390 NC |
3250 | #ifdef pe_use_x86_64 |
3251 | num_entries = pe_get32 (dll, opthdr_ofs + 92 + 4 * 4); /* & NumberOfRvaAndSizes. */ | |
3252 | #else | |
252b5132 | 3253 | num_entries = pe_get32 (dll, opthdr_ofs + 92); |
99ad8390 | 3254 | #endif |
775cabad | 3255 | |
d0069cab TG |
3256 | /* No import or export directory entry. */ |
3257 | if (num_entries < 1) | |
b34976b6 | 3258 | return FALSE; |
775cabad | 3259 | |
99ad8390 NC |
3260 | #ifdef pe_use_x86_64 |
3261 | export_rva = pe_get32 (dll, opthdr_ofs + 96 + 4 * 4); | |
3262 | export_size = pe_get32 (dll, opthdr_ofs + 100 + 4 * 4); | |
3263 | #else | |
252b5132 RH |
3264 | export_rva = pe_get32 (dll, opthdr_ofs + 96); |
3265 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
99ad8390 | 3266 | #endif |
9382254d | 3267 | |
d0069cab TG |
3268 | /* No export table - nothing to export. */ |
3269 | if (export_size == 0) | |
3270 | return FALSE; | |
3271 | ||
252b5132 RH |
3272 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); |
3273 | secptr = (pe_header_offset + 4 + 20 + | |
3274 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
3275 | expptr = 0; | |
775cabad | 3276 | |
1579bae1 | 3277 | /* Get the rva and size of the export section. */ |
d643799d | 3278 | for (i = 0; i < nsections; i++) |
252b5132 RH |
3279 | { |
3280 | char sname[8]; | |
6ca0987a KT |
3281 | bfd_vma secptr1 = secptr + 40 * i; |
3282 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
3283 | bfd_vma vsize = pe_get32 (dll, secptr1 + 16); | |
3284 | bfd_vma fptr = pe_get32 (dll, secptr1 + 20); | |
775cabad | 3285 | |
db09f25b AM |
3286 | bfd_seek (dll, (file_ptr) secptr1, SEEK_SET); |
3287 | bfd_bread (sname, (bfd_size_type) 8, dll); | |
775cabad | 3288 | |
d643799d | 3289 | if (vaddr <= export_rva && vaddr + vsize > export_rva) |
252b5132 RH |
3290 | { |
3291 | expptr = fptr + (export_rva - vaddr); | |
3292 | if (export_rva + export_size > vaddr + vsize) | |
3293 | export_size = vsize - (export_rva - vaddr); | |
3294 | break; | |
3295 | } | |
3296 | } | |
3297 | ||
939ba9d0 | 3298 | /* Scan sections and store the base and size of the |
1579bae1 | 3299 | data and bss segments in data/base_start/end. */ |
939ba9d0 NC |
3300 | for (i = 0; i < nsections; i++) |
3301 | { | |
6ca0987a KT |
3302 | bfd_vma secptr1 = secptr + 40 * i; |
3303 | bfd_vma vsize = pe_get32 (dll, secptr1 + 8); | |
3304 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
3305 | bfd_vma flags = pe_get32 (dll, secptr1 + 36); | |
939ba9d0 NC |
3306 | char sec_name[9]; |
3307 | ||
3308 | sec_name[8] = '\0'; | |
3309 | bfd_seek (dll, (file_ptr) secptr1 + 0, SEEK_SET); | |
3310 | bfd_bread (sec_name, (bfd_size_type) 8, dll); | |
3311 | ||
3312 | if (strcmp(sec_name,".data") == 0) | |
3313 | { | |
3314 | data_start = vaddr; | |
3315 | data_end = vaddr + vsize; | |
3316 | ||
661a32f7 DS |
3317 | if (pe_dll_extra_pe_debug) |
3318 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3319 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3320 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
661a32f7 DS |
3321 | } |
3322 | else if (strcmp(sec_name,".rdata") == 0) | |
3323 | { | |
3324 | rdata_start = vaddr; | |
3325 | rdata_end = vaddr + vsize; | |
3326 | ||
939ba9d0 NC |
3327 | if (pe_dll_extra_pe_debug) |
3328 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3329 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3330 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
1579bae1 | 3331 | } |
939ba9d0 NC |
3332 | else if (strcmp (sec_name,".bss") == 0) |
3333 | { | |
3334 | bss_start = vaddr; | |
3335 | bss_end = vaddr + vsize; | |
3336 | ||
3337 | if (pe_dll_extra_pe_debug) | |
3338 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3339 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3340 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
939ba9d0 NC |
3341 | } |
3342 | } | |
3343 | ||
1579bae1 | 3344 | expdata = xmalloc (export_size); |
db09f25b AM |
3345 | bfd_seek (dll, (file_ptr) expptr, SEEK_SET); |
3346 | bfd_bread (expdata, (bfd_size_type) export_size, dll); | |
47639182 | 3347 | erva = (char *) expdata - export_rva; |
252b5132 RH |
3348 | |
3349 | if (pe_def_file == 0) | |
d643799d | 3350 | pe_def_file = def_file_empty (); |
252b5132 | 3351 | |
d643799d KH |
3352 | nexp = pe_as32 (expdata + 24); |
3353 | name_rvas = pe_as32 (expdata + 32); | |
939ba9d0 | 3354 | exp_funcbase = pe_as32 (expdata + 28); |
775cabad | 3355 | |
939ba9d0 NC |
3356 | /* Use internal dll name instead of filename |
3357 | to enable symbolic dll linking. */ | |
91d6fa6a | 3358 | dllname = erva + pe_as32 (expdata + 12); |
939ba9d0 | 3359 | |
a35bc64f NC |
3360 | /* Check to see if the dll has already been added to |
3361 | the definition list and if so return without error. | |
3362 | This avoids multiple symbol definitions. */ | |
91d6fa6a | 3363 | if (def_get_module (pe_def_file, dllname)) |
a35bc64f NC |
3364 | { |
3365 | if (pe_dll_extra_pe_debug) | |
91d6fa6a | 3366 | printf ("%s is already loaded\n", dllname); |
a35bc64f NC |
3367 | return TRUE; |
3368 | } | |
3369 | ||
939ba9d0 | 3370 | /* Iterate through the list of symbols. */ |
d643799d | 3371 | for (i = 0; i < nexp; i++) |
252b5132 | 3372 | { |
939ba9d0 | 3373 | /* Pointer to the names vector. */ |
6ca0987a | 3374 | bfd_vma name_rva = pe_as32 (erva + name_rvas + i * 4); |
252b5132 | 3375 | def_file_import *imp; |
1579bae1 | 3376 | /* Pointer to the function address vector. */ |
6ca0987a | 3377 | bfd_vma func_rva = pe_as32 (erva + exp_funcbase + i * 4); |
939ba9d0 NC |
3378 | int is_data = 0; |
3379 | ||
3380 | /* Skip unwanted symbols, which are | |
3381 | exported in buggy auto-import releases. */ | |
17f73277 | 3382 | if (! CONST_STRNEQ (erva + name_rva, "__nm_")) |
939ba9d0 | 3383 | { |
db17156e | 3384 | int is_dup = 0; |
661a32f7 DS |
3385 | /* is_data is true if the address is in the data, rdata or bss |
3386 | segment. */ | |
939ba9d0 NC |
3387 | is_data = |
3388 | (func_rva >= data_start && func_rva < data_end) | |
661a32f7 | 3389 | || (func_rva >= rdata_start && func_rva < rdata_end) |
939ba9d0 NC |
3390 | || (func_rva >= bss_start && func_rva < bss_end); |
3391 | ||
3392 | imp = def_file_add_import (pe_def_file, erva + name_rva, | |
6e230cc2 | 3393 | dllname, i, NULL, NULL, &is_dup); |
396a2467 | 3394 | /* Mark symbol type. */ |
db17156e KT |
3395 | if (!is_dup) |
3396 | imp->data = is_data; | |
1579bae1 | 3397 | |
939ba9d0 NC |
3398 | if (pe_dll_extra_pe_debug) |
3399 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", | |
91d6fa6a | 3400 | __FUNCTION__, dllname, erva + name_rva, |
6ca0987a | 3401 | (unsigned long) func_rva, is_data ? "(data)" : ""); |
939ba9d0 | 3402 | } |
252b5132 RH |
3403 | } |
3404 | ||
b34976b6 | 3405 | return TRUE; |
252b5132 RH |
3406 | } |
3407 | ||
88183869 DK |
3408 | void |
3409 | pe_output_file_set_long_section_names (bfd *abfd) | |
3410 | { | |
3411 | if (pe_use_coff_long_section_names < 0) | |
3412 | return; | |
3413 | if (!bfd_coff_set_long_section_names (abfd, pe_use_coff_long_section_names)) | |
611a3ca9 | 3414 | einfo (_("%P%X: Error: can't use long section names on this arch\n")); |
88183869 DK |
3415 | } |
3416 | ||
775cabad NC |
3417 | /* These are the main functions, called from the emulation. The first |
3418 | is called after the bfds are read, so we can guess at how much space | |
3419 | we need. The second is called after everything is placed, so we | |
3420 | can put the right values in place. */ | |
252b5132 RH |
3421 | |
3422 | void | |
1579bae1 | 3423 | pe_dll_build_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3424 | { |
c6c37250 | 3425 | pe_dll_id_target (bfd_get_target (abfd)); |
88183869 | 3426 | pe_output_file_set_long_section_names (abfd); |
c1711530 | 3427 | process_def_file_and_drectve (abfd, info); |
252b5132 | 3428 | |
0e1862bb | 3429 | if (pe_def_file->num_exports == 0 && !bfd_link_pic (info)) |
2b817be1 NC |
3430 | return; |
3431 | ||
252b5132 | 3432 | generate_edata (abfd, info); |
c6c37250 | 3433 | build_filler_bfd (1); |
88183869 | 3434 | pe_output_file_set_long_section_names (filler_bfd); |
c6c37250 DD |
3435 | } |
3436 | ||
3437 | void | |
1579bae1 | 3438 | pe_exe_build_sections (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
c6c37250 DD |
3439 | { |
3440 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3441 | pe_output_file_set_long_section_names (abfd); |
c6c37250 | 3442 | build_filler_bfd (0); |
88183869 | 3443 | pe_output_file_set_long_section_names (filler_bfd); |
252b5132 RH |
3444 | } |
3445 | ||
3446 | void | |
1579bae1 | 3447 | pe_dll_fill_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3448 | { |
c6c37250 | 3449 | pe_dll_id_target (bfd_get_target (abfd)); |
88183869 | 3450 | pe_output_file_set_long_section_names (abfd); |
252b5132 RH |
3451 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
3452 | ||
3453 | generate_reloc (abfd, info); | |
3454 | if (reloc_sz > 0) | |
3455 | { | |
3456 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
3457 | ||
3458 | /* Resize the sections. */ | |
38975f9e | 3459 | lang_reset_memory_regions (); |
e9ee469a | 3460 | lang_size_sections (NULL, TRUE); |
252b5132 RH |
3461 | |
3462 | /* Redo special stuff. */ | |
3463 | ldemul_after_allocation (); | |
3464 | ||
3465 | /* Do the assignments again. */ | |
2f65ac72 | 3466 | lang_do_assignments (lang_final_phase_enum); |
252b5132 RH |
3467 | } |
3468 | ||
3469 | fill_edata (abfd, info); | |
3470 | ||
0e1862bb | 3471 | if (bfd_link_dll (info)) |
2b817be1 | 3472 | pe_data (abfd)->dll = 1; |
252b5132 RH |
3473 | |
3474 | edata_s->contents = edata_d; | |
3475 | reloc_s->contents = reloc_d; | |
3476 | } | |
c6c37250 DD |
3477 | |
3478 | void | |
1579bae1 | 3479 | pe_exe_fill_sections (bfd *abfd, struct bfd_link_info *info) |
c6c37250 DD |
3480 | { |
3481 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3482 | pe_output_file_set_long_section_names (abfd); |
c6c37250 DD |
3483 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
3484 | ||
3485 | generate_reloc (abfd, info); | |
3486 | if (reloc_sz > 0) | |
3487 | { | |
3488 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
3489 | ||
3490 | /* Resize the sections. */ | |
38975f9e | 3491 | lang_reset_memory_regions (); |
e9ee469a | 3492 | lang_size_sections (NULL, TRUE); |
c6c37250 DD |
3493 | |
3494 | /* Redo special stuff. */ | |
3495 | ldemul_after_allocation (); | |
3496 | ||
3497 | /* Do the assignments again. */ | |
2f65ac72 | 3498 | lang_do_assignments (lang_final_phase_enum); |
c6c37250 DD |
3499 | } |
3500 | reloc_s->contents = reloc_d; | |
3501 | } | |
ff2bdb9c CF |
3502 | |
3503 | bfd_boolean | |
3504 | pe_bfd_is_dll (bfd *abfd) | |
3505 | { | |
3506 | return (bfd_get_format (abfd) == bfd_object | |
3507 | && obj_pe (abfd) | |
3508 | && pe_data (abfd)->dll); | |
3509 | } |