Commit | Line | Data |
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252b5132 | 1 | /* Routines to help build PEI-format DLLs (Win32 etc) |
219d1afa | 2 | Copyright (C) 1998-2018 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; |
317ff008 | 171 | static bfd_boolean runtime_pseudp_reloc_v2_init = FALSE; |
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 | |
ddb00039 | 246 | #define PE_ARCH_arm_wince 5 |
c6c37250 | 247 | |
522f09cd KT |
248 | /* Don't make it constant as underscore mode gets possibly overriden |
249 | by target or -(no-)leading-underscore option. */ | |
250 | static pe_details_type pe_detail_list[] = | |
775cabad | 251 | { |
c6c37250 | 252 | { |
99ad8390 NC |
253 | #ifdef pe_use_x86_64 |
254 | "pei-x86-64", | |
255 | "pe-x86-64", | |
256 | 3 /* R_IMAGEBASE */, | |
257 | #else | |
c6c37250 DD |
258 | "pei-i386", |
259 | "pe-i386", | |
260 | 7 /* R_IMAGEBASE */, | |
99ad8390 | 261 | #endif |
c6c37250 DD |
262 | PE_ARCH_i386, |
263 | bfd_arch_i386, | |
d74720d2 KT |
264 | #ifdef pe_use_x86_64 |
265 | FALSE, | |
266 | #else | |
5b8273bf | 267 | TRUE, |
d74720d2 | 268 | #endif |
5b8273bf | 269 | autofilter_symbollist_i386 |
c6c37250 | 270 | }, |
a6da4630 A |
271 | #ifdef pe_use_x86_64 |
272 | { | |
273 | "pei-x86-64", | |
274 | "pe-bigobj-x86-64", | |
275 | 3 /* R_IMAGEBASE */, | |
276 | PE_ARCH_i386, | |
277 | bfd_arch_i386, | |
278 | FALSE, | |
279 | autofilter_symbollist_i386 | |
280 | }, | |
281 | #endif | |
344a211f NC |
282 | { |
283 | "pei-shl", | |
284 | "pe-shl", | |
285 | 16 /* R_SH_IMAGEBASE */, | |
286 | PE_ARCH_sh, | |
287 | bfd_arch_sh, | |
5b8273bf NC |
288 | TRUE, |
289 | autofilter_symbollist_generic | |
344a211f NC |
290 | }, |
291 | { | |
292 | "pei-mips", | |
293 | "pe-mips", | |
294 | 34 /* MIPS_R_RVA */, | |
295 | PE_ARCH_mips, | |
296 | bfd_arch_mips, | |
5b8273bf NC |
297 | FALSE, |
298 | autofilter_symbollist_generic | |
344a211f NC |
299 | }, |
300 | { | |
301 | "pei-arm-little", | |
302 | "pe-arm-little", | |
303 | 11 /* ARM_RVA32 */, | |
304 | PE_ARCH_arm, | |
305 | bfd_arch_arm, | |
5b8273bf NC |
306 | TRUE, |
307 | autofilter_symbollist_generic | |
344a211f | 308 | }, |
7148cc28 NC |
309 | { |
310 | "pei-arm-wince-little", | |
311 | "pe-arm-wince-little", | |
312 | 2, /* ARM_RVA32 on Windows CE, see bfd/coff-arm.c. */ | |
313 | PE_ARCH_arm_wince, | |
314 | bfd_arch_arm, | |
315 | FALSE, | |
316 | autofilter_symbollist_generic | |
317 | }, | |
5b8273bf | 318 | { NULL, NULL, 0, 0, 0, FALSE, NULL } |
c6c37250 DD |
319 | }; |
320 | ||
e916811a | 321 | static const pe_details_type *pe_details; |
c6c37250 | 322 | |
775cabad | 323 | /* Do not specify library suffix explicitly, to allow for dllized versions. */ |
e916811a | 324 | static const autofilter_entry_type autofilter_liblist[] = |
775cabad | 325 | { |
0112cd26 NC |
326 | { STRING_COMMA_LEN ("libcegcc") }, |
327 | { STRING_COMMA_LEN ("libcygwin") }, | |
328 | { STRING_COMMA_LEN ("libgcc") }, | |
81b07b16 | 329 | { STRING_COMMA_LEN ("libgcc_s") }, |
0112cd26 NC |
330 | { STRING_COMMA_LEN ("libstdc++") }, |
331 | { STRING_COMMA_LEN ("libmingw32") }, | |
332 | { STRING_COMMA_LEN ("libmingwex") }, | |
333 | { STRING_COMMA_LEN ("libg2c") }, | |
334 | { STRING_COMMA_LEN ("libsupc++") }, | |
335 | { STRING_COMMA_LEN ("libobjc") }, | |
336 | { STRING_COMMA_LEN ("libgcj") }, | |
9d9c67b0 MS |
337 | { STRING_COMMA_LEN ("libmsvcrt") }, |
338 | { STRING_COMMA_LEN ("libmsvcrt-os") }, | |
339 | { STRING_COMMA_LEN ("libucrtbase") }, | |
db86b2dc | 340 | { NULL, 0 } |
b044cda1 | 341 | }; |
775cabad | 342 | |
81b07b16 DK |
343 | /* Regardless of the suffix issue mentioned above, we must ensure that |
344 | we do not falsely match on a leading substring, such as when libtool | |
345 | builds libstdc++ as a DLL using libsupc++convenience.a as an intermediate. | |
346 | This routine ensures that the leading part of the name matches and that | |
347 | it is followed by only an optional version suffix and a file extension, | |
348 | returning zero if so or -1 if not. */ | |
349 | static int libnamencmp (const char *libname, const autofilter_entry_type *afptr) | |
350 | { | |
42627821 | 351 | if (filename_ncmp (libname, afptr->name, afptr->len)) |
81b07b16 DK |
352 | return -1; |
353 | ||
354 | libname += afptr->len; | |
355 | ||
356 | /* Be liberal in interpreting what counts as a version suffix; we | |
357 | accept anything that has a dash to separate it from the name and | |
358 | begins with a digit. */ | |
359 | if (libname[0] == '-') | |
360 | { | |
361 | if (!ISDIGIT (*++libname)) | |
362 | return -1; | |
363 | /* Ensure the filename has an extension. */ | |
364 | while (*++libname != '.') | |
365 | if (!*libname) | |
366 | return -1; | |
367 | } | |
368 | else if (libname[0] != '.') | |
369 | return -1; | |
370 | ||
371 | return 0; | |
372 | } | |
373 | ||
e916811a | 374 | static const autofilter_entry_type autofilter_objlist[] = |
775cabad | 375 | { |
0112cd26 NC |
376 | { STRING_COMMA_LEN ("crt0.o") }, |
377 | { STRING_COMMA_LEN ("crt1.o") }, | |
378 | { STRING_COMMA_LEN ("crt2.o") }, | |
379 | { STRING_COMMA_LEN ("dllcrt1.o") }, | |
380 | { STRING_COMMA_LEN ("dllcrt2.o") }, | |
381 | { STRING_COMMA_LEN ("gcrt0.o") }, | |
382 | { STRING_COMMA_LEN ("gcrt1.o") }, | |
383 | { STRING_COMMA_LEN ("gcrt2.o") }, | |
384 | { STRING_COMMA_LEN ("crtbegin.o") }, | |
385 | { STRING_COMMA_LEN ("crtend.o") }, | |
db86b2dc | 386 | { NULL, 0 } |
b044cda1 | 387 | }; |
775cabad | 388 | |
e916811a | 389 | static const autofilter_entry_type autofilter_symbolprefixlist[] = |
775cabad | 390 | { |
00479ba8 NC |
391 | /* _imp_ is treated specially, as it is always underscored. */ |
392 | /* { STRING_COMMA_LEN ("_imp_") }, */ | |
393 | /* Don't export some c++ symbols. */ | |
0112cd26 | 394 | { STRING_COMMA_LEN ("__rtti_") }, |
00479ba8 | 395 | { STRING_COMMA_LEN ("__builtin_") }, |
39cebe23 | 396 | /* Don't re-export auto-imported symbols. */ |
17f73277 | 397 | { STRING_COMMA_LEN ("__nm_") }, |
775cabad | 398 | /* Don't export symbols specifying internal DLL layout. */ |
0112cd26 | 399 | { STRING_COMMA_LEN ("_head_") }, |
b92216aa DS |
400 | { STRING_COMMA_LEN ("_IMPORT_DESCRIPTOR_") }, |
401 | /* Don't export section labels or artificial symbols | |
402 | (eg ".weak.foo". */ | |
403 | { STRING_COMMA_LEN (".") }, | |
db86b2dc | 404 | { NULL, 0 } |
b044cda1 | 405 | }; |
775cabad | 406 | |
e916811a | 407 | static const autofilter_entry_type autofilter_symbolsuffixlist[] = |
775cabad | 408 | { |
0112cd26 | 409 | { STRING_COMMA_LEN ("_iname") }, |
b92216aa | 410 | { STRING_COMMA_LEN ("_NULL_THUNK_DATA") }, |
db86b2dc | 411 | { NULL, 0 } |
b044cda1 CW |
412 | }; |
413 | ||
c6c37250 DD |
414 | #define U(str) (pe_details->underscored ? "_" str : str) |
415 | ||
416 | void | |
1579bae1 | 417 | pe_dll_id_target (const char *target) |
c6c37250 DD |
418 | { |
419 | int i; | |
775cabad | 420 | |
d643799d | 421 | for (i = 0; pe_detail_list[i].target_name; i++) |
9d68bc82 DD |
422 | if (strcmp (pe_detail_list[i].target_name, target) == 0 |
423 | || strcmp (pe_detail_list[i].object_target, target) == 0) | |
c6c37250 | 424 | { |
522f09cd KT |
425 | int u = pe_leading_underscore; /* Underscoring mode. -1 for use default. */ |
426 | if (u == -1) | |
427 | bfd_get_target_info (target, NULL, NULL, &u, NULL); | |
d74720d2 KT |
428 | if (u == -1) |
429 | abort (); | |
430 | pe_detail_list[i].underscored = (u != 0 ? TRUE : FALSE); | |
d643799d | 431 | pe_details = pe_detail_list + i; |
d74720d2 | 432 | pe_leading_underscore = (u != 0 ? 1 : 0); |
c6c37250 DD |
433 | return; |
434 | } | |
df5f2391 | 435 | einfo (_("%X%P: unsupported PEI architecture: %s\n"), target); |
c6c37250 DD |
436 | exit (1); |
437 | } | |
438 | ||
b7a26f91 | 439 | /* Helper functions for qsort. Relocs must be sorted so that we can write |
775cabad | 440 | them out by pages. */ |
252b5132 | 441 | |
775cabad NC |
442 | typedef struct |
443 | { | |
444 | bfd_vma vma; | |
445 | char type; | |
446 | short extra; | |
447 | } | |
448 | reloc_data_type; | |
c6c37250 | 449 | |
252b5132 | 450 | static int |
1579bae1 | 451 | reloc_sort (const void *va, const void *vb) |
252b5132 | 452 | { |
1579bae1 AM |
453 | bfd_vma a = ((const reloc_data_type *) va)->vma; |
454 | bfd_vma b = ((const reloc_data_type *) vb)->vma; | |
775cabad | 455 | |
c6c37250 | 456 | return (a > b) ? 1 : ((a < b) ? -1 : 0); |
252b5132 RH |
457 | } |
458 | ||
459 | static int | |
1579bae1 | 460 | pe_export_sort (const void *va, const void *vb) |
252b5132 | 461 | { |
1579bae1 AM |
462 | const def_file_export *a = va; |
463 | const def_file_export *b = vb; | |
7fcab871 KT |
464 | char *an = a->name; |
465 | char *bn = b->name; | |
466 | if (a->its_name) | |
467 | an = a->its_name; | |
468 | if (b->its_name) | |
469 | bn = b->its_name; | |
470 | ||
471 | return strcmp (an, bn); | |
252b5132 RH |
472 | } |
473 | ||
775cabad | 474 | /* Read and process the .DEF file. */ |
252b5132 RH |
475 | |
476 | /* These correspond to the entries in pe_def_file->exports[]. I use | |
477 | exported_symbol_sections[i] to tag whether or not the symbol was | |
5cc18311 | 478 | defined, since we can't export symbols we don't have. */ |
252b5132 RH |
479 | |
480 | static bfd_vma *exported_symbol_offsets; | |
198beae2 | 481 | static struct bfd_section **exported_symbol_sections; |
252b5132 RH |
482 | static int export_table_size; |
483 | static int count_exported; | |
484 | static int count_exported_byname; | |
485 | static int count_with_ordinals; | |
486 | static const char *dll_name; | |
487 | static int min_ordinal, max_ordinal; | |
488 | static int *exported_symbols; | |
489 | ||
775cabad NC |
490 | typedef struct exclude_list_struct |
491 | { | |
492 | char *string; | |
493 | struct exclude_list_struct *next; | |
e1c37eb5 | 494 | exclude_type type; |
775cabad NC |
495 | } |
496 | exclude_list_struct; | |
86b1cc60 | 497 | |
252b5132 RH |
498 | static struct exclude_list_struct *excludes = 0; |
499 | ||
500 | void | |
e1c37eb5 | 501 | pe_dll_add_excludes (const char *new_excludes, const exclude_type type) |
252b5132 RH |
502 | { |
503 | char *local_copy; | |
504 | char *exclude_string; | |
505 | ||
506 | local_copy = xstrdup (new_excludes); | |
507 | ||
508 | exclude_string = strtok (local_copy, ",:"); | |
509 | for (; exclude_string; exclude_string = strtok (NULL, ",:")) | |
510 | { | |
511 | struct exclude_list_struct *new_exclude; | |
512 | ||
1579bae1 AM |
513 | new_exclude = xmalloc (sizeof (struct exclude_list_struct)); |
514 | new_exclude->string = xmalloc (strlen (exclude_string) + 1); | |
252b5132 | 515 | strcpy (new_exclude->string, exclude_string); |
70b0be79 | 516 | new_exclude->type = type; |
252b5132 RH |
517 | new_exclude->next = excludes; |
518 | excludes = new_exclude; | |
519 | } | |
520 | ||
521 | free (local_copy); | |
522 | } | |
523 | ||
00479ba8 NC |
524 | static bfd_boolean |
525 | is_import (const char* n) | |
526 | { | |
e916811a | 527 | return (CONST_STRNEQ (n, "__imp_")); |
00479ba8 | 528 | } |
70b0be79 | 529 | |
775cabad NC |
530 | /* abfd is a bfd containing n (or NULL) |
531 | It can be used for contextual checks. */ | |
532 | ||
252b5132 | 533 | static int |
1579bae1 | 534 | auto_export (bfd *abfd, def_file *d, const char *n) |
252b5132 | 535 | { |
98872a7c | 536 | def_file_export key; |
252b5132 | 537 | struct exclude_list_struct *ex; |
e916811a | 538 | const autofilter_entry_type *afptr; |
98872a7c NC |
539 | const char * libname = NULL; |
540 | ||
70b0be79 CF |
541 | if (abfd && abfd->my_archive) |
542 | libname = lbasename (abfd->my_archive->filename); | |
b044cda1 | 543 | |
98872a7c NC |
544 | key.name = key.its_name = (char *) n; |
545 | ||
546 | /* Return false if n is in the d->exports table. */ | |
547 | if (bsearch (&key, d->exports, d->num_exports, | |
6c19b93b | 548 | sizeof (pe_def_file->exports[0]), pe_export_sort)) |
98872a7c | 549 | return 0; |
775cabad | 550 | |
252b5132 RH |
551 | if (pe_dll_do_default_excludes) |
552 | { | |
663dd378 | 553 | const char * p; |
775cabad NC |
554 | int len; |
555 | ||
b044cda1 | 556 | if (pe_dll_extra_pe_debug) |
775cabad NC |
557 | printf ("considering exporting: %s, abfd=%p, abfd->my_arc=%p\n", |
558 | n, abfd, abfd->my_archive); | |
b044cda1 CW |
559 | |
560 | /* First of all, make context checks: | |
1579bae1 | 561 | Don't export anything from standard libs. */ |
658957db | 562 | if (libname) |
b044cda1 CW |
563 | { |
564 | afptr = autofilter_liblist; | |
775cabad | 565 | |
b044cda1 CW |
566 | while (afptr->name) |
567 | { | |
81b07b16 | 568 | if (libnamencmp (libname, afptr) == 0 ) |
b044cda1 CW |
569 | return 0; |
570 | afptr++; | |
571 | } | |
572 | } | |
573 | ||
775cabad | 574 | /* Next, exclude symbols from certain startup objects. */ |
775cabad | 575 | |
59d28a94 | 576 | if (abfd && (p = lbasename (abfd->filename))) |
663dd378 | 577 | { |
b7a26f91 KH |
578 | afptr = autofilter_objlist; |
579 | while (afptr->name) | |
59d28a94 | 580 | { |
b7a26f91 KH |
581 | if (strcmp (p, afptr->name) == 0) |
582 | return 0; | |
59d28a94 | 583 | afptr++; |
663dd378 | 584 | } |
775cabad | 585 | } |
b044cda1 CW |
586 | |
587 | /* Don't try to blindly exclude all symbols | |
588 | that begin with '__'; this was tried and | |
5b8273bf NC |
589 | it is too restrictive. Instead we have |
590 | a target specific list to use: */ | |
1b610c93 | 591 | afptr = pe_details->autofilter_symbollist; |
99ad8390 | 592 | |
b044cda1 CW |
593 | while (afptr->name) |
594 | { | |
595 | if (strcmp (n, afptr->name) == 0) | |
596 | return 0; | |
775cabad | 597 | |
b7a26f91 | 598 | afptr++; |
b044cda1 CW |
599 | } |
600 | ||
775cabad | 601 | /* Next, exclude symbols starting with ... */ |
b044cda1 CW |
602 | afptr = autofilter_symbolprefixlist; |
603 | while (afptr->name) | |
604 | { | |
605 | if (strncmp (n, afptr->name, afptr->len) == 0) | |
606 | return 0; | |
775cabad | 607 | |
b7a26f91 | 608 | afptr++; |
b044cda1 CW |
609 | } |
610 | ||
775cabad NC |
611 | /* Finally, exclude symbols ending with ... */ |
612 | len = strlen (n); | |
613 | afptr = autofilter_symbolsuffixlist; | |
614 | while (afptr->name) | |
615 | { | |
b7a26f91 | 616 | if ((len >= afptr->len) |
775cabad | 617 | /* Add 1 to insure match with trailing '\0'. */ |
b7a26f91 KH |
618 | && strncmp (n + len - afptr->len, afptr->name, |
619 | afptr->len + 1) == 0) | |
775cabad NC |
620 | return 0; |
621 | ||
b7a26f91 | 622 | afptr++; |
775cabad | 623 | } |
252b5132 | 624 | } |
775cabad | 625 | |
252b5132 | 626 | for (ex = excludes; ex; ex = ex->next) |
70b0be79 | 627 | { |
e1c37eb5 | 628 | if (ex->type == EXCLUDELIBS) |
70b0be79 CF |
629 | { |
630 | if (libname | |
42627821 | 631 | && ((filename_cmp (libname, ex->string) == 0) |
70b0be79 CF |
632 | || (strcasecmp ("ALL", ex->string) == 0))) |
633 | return 0; | |
634 | } | |
e1c37eb5 DK |
635 | else if (ex->type == EXCLUDEFORIMPLIB) |
636 | { | |
42627821 | 637 | if (filename_cmp (abfd->filename, ex->string) == 0) |
e1c37eb5 DK |
638 | return 0; |
639 | } | |
70b0be79 | 640 | else if (strcmp (n, ex->string) == 0) |
658957db | 641 | return 0; |
70b0be79 | 642 | } |
775cabad | 643 | |
252b5132 RH |
644 | return 1; |
645 | } | |
646 | ||
647 | static void | |
c1711530 | 648 | process_def_file_and_drectve (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
252b5132 RH |
649 | { |
650 | int i, j; | |
651 | struct bfd_link_hash_entry *blhe; | |
652 | bfd *b; | |
198beae2 | 653 | struct bfd_section *s; |
d643799d | 654 | def_file_export *e = 0; |
98872a7c | 655 | bfd_boolean resort_needed; |
252b5132 RH |
656 | |
657 | if (!pe_def_file) | |
658 | pe_def_file = def_file_empty (); | |
659 | ||
660 | /* First, run around to all the objects looking for the .drectve | |
86b1cc60 | 661 | sections, and push those into the def file too. */ |
c72f2fb2 | 662 | for (b = info->input_bfds; b; b = b->link.next) |
252b5132 RH |
663 | { |
664 | s = bfd_get_section_by_name (b, ".drectve"); | |
665 | if (s) | |
666 | { | |
eea6121a | 667 | long size = s->size; |
252b5132 | 668 | char *buf = xmalloc (size); |
775cabad | 669 | |
252b5132 RH |
670 | bfd_get_section_contents (b, s, buf, 0, size); |
671 | def_file_add_directive (pe_def_file, buf, size); | |
672 | free (buf); | |
673 | } | |
674 | } | |
675 | ||
c1711530 DK |
676 | /* Process aligned common symbol information from the |
677 | .drectve sections now; common symbol allocation is | |
678 | done before final link, so it will be too late to | |
679 | process them in process_embedded_commands() called | |
680 | from _bfd_coff_link_input_bfd(). */ | |
681 | if (pe_def_file->aligncomms) | |
682 | { | |
683 | def_file_aligncomm *ac = pe_def_file->aligncomms; | |
684 | while (ac) | |
685 | { | |
686 | struct coff_link_hash_entry *sym_hash; | |
687 | sym_hash = coff_link_hash_lookup (coff_hash_table (info), | |
6c19b93b | 688 | ac->symbol_name, FALSE, FALSE, FALSE); |
c1711530 | 689 | if (sym_hash && sym_hash->root.type == bfd_link_hash_common |
6c19b93b | 690 | && sym_hash->root.u.c.p->alignment_power < (unsigned) ac->alignment) |
c1711530 DK |
691 | { |
692 | sym_hash->root.u.c.p->alignment_power = (unsigned) ac->alignment; | |
693 | } | |
694 | ac = ac->next; | |
695 | } | |
696 | } | |
697 | ||
2927aaca NC |
698 | /* If we are building an executable and there is nothing |
699 | to export, we do not build an export table at all. */ | |
0e1862bb | 700 | if (bfd_link_executable (info) && pe_def_file->num_exports == 0 |
2927aaca | 701 | && (!pe_dll_export_everything || pe_dll_exclude_all_symbols)) |
2b817be1 NC |
702 | return; |
703 | ||
86b1cc60 | 704 | /* Now, maybe export everything else the default way. */ |
2927aaca NC |
705 | if ((pe_dll_export_everything || pe_def_file->num_exports == 0) |
706 | && !pe_dll_exclude_all_symbols) | |
252b5132 | 707 | { |
c72f2fb2 | 708 | for (b = info->input_bfds; b; b = b->link.next) |
252b5132 RH |
709 | { |
710 | asymbol **symbols; | |
5c1d2f5f | 711 | int nsyms; |
252b5132 | 712 | |
5c1d2f5f AM |
713 | if (!bfd_generic_link_read_symbols (b)) |
714 | { | |
df5f2391 | 715 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), b); |
5c1d2f5f AM |
716 | return; |
717 | } | |
718 | ||
719 | symbols = bfd_get_outsymbols (b); | |
720 | nsyms = bfd_get_symcount (b); | |
252b5132 RH |
721 | |
722 | for (j = 0; j < nsyms; j++) | |
723 | { | |
d643799d | 724 | /* We should export symbols which are either global or not |
1579bae1 AM |
725 | anything at all. (.bss data is the latter) |
726 | We should not export undefined symbols. */ | |
45dfa85a AM |
727 | bfd_boolean would_export |
728 | = (symbols[j]->section != bfd_und_section_ptr | |
729 | && ((symbols[j]->flags & BSF_GLOBAL) | |
730 | || (symbols[j]->flags == 0))); | |
fd91d419 | 731 | if (link_info.version_info && would_export) |
6c19b93b AM |
732 | would_export |
733 | = !bfd_hide_sym_by_version (link_info.version_info, | |
734 | symbols[j]->name); | |
09e2aba4 | 735 | if (would_export) |
252b5132 RH |
736 | { |
737 | const char *sn = symbols[j]->name; | |
b044cda1 | 738 | |
775cabad | 739 | /* We should not re-export imported stuff. */ |
b044cda1 | 740 | { |
e916811a | 741 | char *name; |
00479ba8 | 742 | if (is_import (sn)) |
6c19b93b | 743 | continue; |
00479ba8 | 744 | |
e916811a | 745 | name = xmalloc (strlen ("__imp_") + strlen (sn) + 1); |
00479ba8 | 746 | sprintf (name, "%s%s", "__imp_", sn); |
775cabad | 747 | |
b044cda1 | 748 | blhe = bfd_link_hash_lookup (info->hash, name, |
b34976b6 | 749 | FALSE, FALSE, FALSE); |
b044cda1 CW |
750 | free (name); |
751 | ||
b7a26f91 | 752 | if (blhe && blhe->type == bfd_link_hash_defined) |
b044cda1 CW |
753 | continue; |
754 | } | |
755 | ||
00479ba8 | 756 | if (pe_details->underscored && *sn == '_') |
252b5132 | 757 | sn++; |
775cabad | 758 | |
b044cda1 CW |
759 | if (auto_export (b, pe_def_file, sn)) |
760 | { | |
db17156e | 761 | int is_dup = 0; |
b044cda1 | 762 | def_file_export *p; |
98872a7c | 763 | |
db17156e KT |
764 | p = def_file_add_export (pe_def_file, sn, 0, -1, |
765 | NULL, &is_dup); | |
775cabad | 766 | /* Fill data flag properly, from dlltool.c. */ |
db17156e | 767 | if (!is_dup) |
6c19b93b | 768 | p->flag_data = !(symbols[j]->flags & BSF_FUNCTION); |
b044cda1 | 769 | } |
252b5132 RH |
770 | } |
771 | } | |
772 | } | |
773 | } | |
774 | ||
775 | #undef NE | |
776 | #define NE pe_def_file->num_exports | |
777 | ||
177b81d6 DK |
778 | /* Don't create an empty export table. */ |
779 | if (NE == 0) | |
780 | return; | |
781 | ||
98872a7c NC |
782 | resort_needed = FALSE; |
783 | ||
86b1cc60 | 784 | /* Canonicalize the export list. */ |
252b5132 RH |
785 | if (pe_dll_kill_ats) |
786 | { | |
787 | for (i = 0; i < NE; i++) | |
788 | { | |
31fd86f1 KT |
789 | /* Check for fastcall/stdcall-decoration, but ignore |
790 | C++ mangled names. */ | |
791 | if (pe_def_file->exports[i].name[0] != '?' | |
792 | && strchr (pe_def_file->exports[i].name, '@')) | |
252b5132 | 793 | { |
86b1cc60 | 794 | /* This will preserve internal_name, which may have been |
1579bae1 AM |
795 | pointing to the same memory as name, or might not |
796 | have. */ | |
797 | int lead_at = (*pe_def_file->exports[i].name == '@'); | |
c9e38879 | 798 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
31fd86f1 | 799 | char *tmp_at = strrchr (tmp, '@'); |
775cabad | 800 | |
a8d701fd | 801 | if (tmp_at) |
6c19b93b | 802 | *tmp_at = 0; |
a8d701fd | 803 | else |
df5f2391 | 804 | einfo (_("%X%P: cannot export %s: invalid export name\n"), |
a8d701fd | 805 | pe_def_file->exports[i].name); |
252b5132 | 806 | pe_def_file->exports[i].name = tmp; |
6c19b93b | 807 | resort_needed = TRUE; |
252b5132 RH |
808 | } |
809 | } | |
810 | } | |
811 | ||
98872a7c NC |
812 | /* Re-sort the exports table as we have possibly changed the order |
813 | by removing leading @. */ | |
814 | if (resort_needed) | |
815 | qsort (pe_def_file->exports, NE, sizeof (pe_def_file->exports[0]), | |
6c19b93b | 816 | pe_export_sort); |
98872a7c | 817 | |
252b5132 RH |
818 | if (pe_dll_stdcall_aliases) |
819 | { | |
820 | for (i = 0; i < NE; i++) | |
821 | { | |
00479ba8 NC |
822 | if (is_import (pe_def_file->exports[i].name)) |
823 | continue; | |
824 | ||
252b5132 RH |
825 | if (strchr (pe_def_file->exports[i].name, '@')) |
826 | { | |
db17156e | 827 | int is_dup = 1; |
1579bae1 | 828 | int lead_at = (*pe_def_file->exports[i].name == '@'); |
c9e38879 | 829 | char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at); |
775cabad | 830 | |
252b5132 | 831 | *(strchr (tmp, '@')) = 0; |
b044cda1 | 832 | if (auto_export (NULL, pe_def_file, tmp)) |
252b5132 | 833 | def_file_add_export (pe_def_file, tmp, |
b044cda1 | 834 | pe_def_file->exports[i].internal_name, |
db17156e KT |
835 | -1, NULL, &is_dup); |
836 | if (is_dup) | |
6c19b93b | 837 | free (tmp); |
252b5132 RH |
838 | } |
839 | } | |
840 | } | |
841 | ||
86b1cc60 KH |
842 | /* Convenience, but watch out for it changing. */ |
843 | e = pe_def_file->exports; | |
252b5132 | 844 | |
252b5132 RH |
845 | for (i = 0, j = 0; i < NE; i++) |
846 | { | |
847 | if (i > 0 && strcmp (e[i].name, e[i - 1].name) == 0) | |
848 | { | |
870df5dc | 849 | /* This is a duplicate. */ |
252b5132 RH |
850 | if (e[j - 1].ordinal != -1 |
851 | && e[i].ordinal != -1 | |
852 | && e[j - 1].ordinal != e[i].ordinal) | |
853 | { | |
870df5dc NC |
854 | if (pe_dll_warn_dup_exports) |
855 | /* xgettext:c-format */ | |
df5f2391 | 856 | einfo (_("%X%P: error, duplicate EXPORT with ordinals: %s (%d vs %d)\n"), |
870df5dc | 857 | e[j - 1].name, e[j - 1].ordinal, e[i].ordinal); |
252b5132 RH |
858 | } |
859 | else | |
860 | { | |
870df5dc NC |
861 | if (pe_dll_warn_dup_exports) |
862 | /* xgettext:c-format */ | |
df5f2391 | 863 | einfo (_("%P: warning, duplicate EXPORT: %s\n"), |
870df5dc | 864 | e[j - 1].name); |
252b5132 | 865 | } |
775cabad | 866 | |
486e80e2 | 867 | if (e[i].ordinal != -1) |
252b5132 RH |
868 | e[j - 1].ordinal = e[i].ordinal; |
869 | e[j - 1].flag_private |= e[i].flag_private; | |
870 | e[j - 1].flag_constant |= e[i].flag_constant; | |
871 | e[j - 1].flag_noname |= e[i].flag_noname; | |
872 | e[j - 1].flag_data |= e[i].flag_data; | |
6e230cc2 KT |
873 | if (e[i].name) |
874 | free (e[i].name); | |
875 | if (e[i].internal_name) | |
876 | free (e[i].internal_name); | |
877 | if (e[i].its_name) | |
878 | free (e[i].its_name); | |
252b5132 RH |
879 | } |
880 | else | |
881 | { | |
882 | if (i != j) | |
883 | e[j] = e[i]; | |
884 | j++; | |
885 | } | |
886 | } | |
887 | pe_def_file->num_exports = j; /* == NE */ | |
888 | ||
6e230cc2 KT |
889 | exported_symbol_offsets = xmalloc (NE * sizeof (bfd_vma)); |
890 | exported_symbol_sections = xmalloc (NE * sizeof (struct bfd_section *)); | |
891 | ||
892 | memset (exported_symbol_sections, 0, NE * sizeof (struct bfd_section *)); | |
893 | max_ordinal = 0; | |
894 | min_ordinal = 65536; | |
895 | count_exported = 0; | |
896 | count_exported_byname = 0; | |
897 | count_with_ordinals = 0; | |
898 | ||
252b5132 RH |
899 | for (i = 0; i < NE; i++) |
900 | { | |
e1fa0163 | 901 | char *int_name = pe_def_file->exports[i].internal_name; |
1579bae1 | 902 | char *name; |
41f46ed9 | 903 | |
4153b6db NC |
904 | /* PR 19803: Make sure that any exported symbol does not get garbage collected. */ |
905 | lang_add_gc_name (int_name); | |
906 | ||
e1fa0163 NC |
907 | name = xmalloc (strlen (int_name) + 2); |
908 | if (pe_details->underscored && int_name[0] != '@') | |
c6c37250 DD |
909 | { |
910 | *name = '_'; | |
e1fa0163 | 911 | strcpy (name + 1, int_name); |
67f101ee NC |
912 | |
913 | /* PR 19803: The alias must be preserved as well. */ | |
914 | lang_add_gc_name (xstrdup (name)); | |
c6c37250 DD |
915 | } |
916 | else | |
e1fa0163 | 917 | strcpy (name, int_name); |
252b5132 RH |
918 | |
919 | blhe = bfd_link_hash_lookup (info->hash, | |
920 | name, | |
b34976b6 | 921 | FALSE, FALSE, TRUE); |
252b5132 | 922 | |
8a5b676c | 923 | if (blhe |
d643799d | 924 | && (blhe->type == bfd_link_hash_defined |
8a5b676c | 925 | || (blhe->type == bfd_link_hash_common))) |
252b5132 RH |
926 | { |
927 | count_exported++; | |
928 | if (!pe_def_file->exports[i].flag_noname) | |
929 | count_exported_byname++; | |
8a5b676c DD |
930 | |
931 | /* Only fill in the sections. The actual offsets are computed | |
932 | in fill_exported_offsets() after common symbols are laid | |
933 | out. */ | |
d643799d | 934 | if (blhe->type == bfd_link_hash_defined) |
8a5b676c DD |
935 | exported_symbol_sections[i] = blhe->u.def.section; |
936 | else | |
937 | exported_symbol_sections[i] = blhe->u.c.p->section; | |
5cc18311 | 938 | |
75898d57 DK |
939 | if (pe_def_file->exports[i].ordinal != -1) |
940 | { | |
941 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
942 | max_ordinal = pe_def_file->exports[i].ordinal; | |
943 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
944 | min_ordinal = pe_def_file->exports[i].ordinal; | |
945 | count_with_ordinals++; | |
946 | } | |
947 | } | |
948 | /* Check for forward exports. These are indicated in DEF files by an | |
6c19b93b | 949 | export directive of the form NAME1 = MODULE-NAME.EXTERNAL-NAME |
75898d57 DK |
950 | but we must take care not to be fooled when the user wants to export |
951 | a symbol that actually really has a dot in it, so we only check | |
952 | for them here, after real defined symbols have already been matched. */ | |
e1fa0163 | 953 | else if (strchr (int_name, '.')) |
75898d57 DK |
954 | { |
955 | count_exported++; | |
956 | if (!pe_def_file->exports[i].flag_noname) | |
957 | count_exported_byname++; | |
958 | ||
959 | pe_def_file->exports[i].flag_forward = 1; | |
960 | ||
252b5132 RH |
961 | if (pe_def_file->exports[i].ordinal != -1) |
962 | { | |
963 | if (max_ordinal < pe_def_file->exports[i].ordinal) | |
964 | max_ordinal = pe_def_file->exports[i].ordinal; | |
965 | if (min_ordinal > pe_def_file->exports[i].ordinal) | |
966 | min_ordinal = pe_def_file->exports[i].ordinal; | |
967 | count_with_ordinals++; | |
968 | } | |
969 | } | |
970 | else if (blhe && blhe->type == bfd_link_hash_undefined) | |
971 | { | |
972 | /* xgettext:c-format */ | |
df5f2391 | 973 | einfo (_("%X%P: cannot export %s: symbol not defined\n"), |
e1fa0163 | 974 | int_name); |
252b5132 RH |
975 | } |
976 | else if (blhe) | |
977 | { | |
978 | /* xgettext:c-format */ | |
df5f2391 | 979 | einfo (_("%X%P: cannot export %s: symbol wrong type (%d vs %d)\n"), |
e1fa0163 | 980 | int_name, |
252b5132 RH |
981 | blhe->type, bfd_link_hash_defined); |
982 | } | |
983 | else | |
984 | { | |
985 | /* xgettext:c-format */ | |
df5f2391 | 986 | einfo (_("%X%P: cannot export %s: symbol not found\n"), |
e1fa0163 | 987 | int_name); |
252b5132 RH |
988 | } |
989 | free (name); | |
990 | } | |
991 | } | |
992 | ||
775cabad | 993 | /* Build the bfd that will contain .edata and .reloc sections. */ |
252b5132 RH |
994 | |
995 | static void | |
1579bae1 | 996 | build_filler_bfd (int include_edata) |
252b5132 RH |
997 | { |
998 | lang_input_statement_type *filler_file; | |
999 | filler_file = lang_add_input_file ("dll stuff", | |
1000 | lang_input_file_is_fake_enum, | |
1001 | NULL); | |
f13a99db AM |
1002 | filler_file->the_bfd = filler_bfd = bfd_create ("dll stuff", |
1003 | link_info.output_bfd); | |
252b5132 RH |
1004 | if (filler_bfd == NULL |
1005 | || !bfd_set_arch_mach (filler_bfd, | |
f13a99db AM |
1006 | bfd_get_arch (link_info.output_bfd), |
1007 | bfd_get_mach (link_info.output_bfd))) | |
252b5132 | 1008 | { |
df5f2391 | 1009 | einfo (_("%F%P: can not create BFD: %E\n")); |
252b5132 RH |
1010 | return; |
1011 | } | |
1012 | ||
c6c37250 | 1013 | if (include_edata) |
252b5132 | 1014 | { |
c6c37250 DD |
1015 | edata_s = bfd_make_section_old_way (filler_bfd, ".edata"); |
1016 | if (edata_s == NULL | |
1017 | || !bfd_set_section_flags (filler_bfd, edata_s, | |
1018 | (SEC_HAS_CONTENTS | |
1019 | | SEC_ALLOC | |
1020 | | SEC_LOAD | |
1021 | | SEC_KEEP | |
1022 | | SEC_IN_MEMORY))) | |
1023 | { | |
d003af55 | 1024 | einfo (_("%X%P: can not create .edata section: %E\n")); |
c6c37250 DD |
1025 | return; |
1026 | } | |
1027 | bfd_set_section_size (filler_bfd, edata_s, edata_sz); | |
252b5132 | 1028 | } |
252b5132 RH |
1029 | |
1030 | reloc_s = bfd_make_section_old_way (filler_bfd, ".reloc"); | |
1031 | if (reloc_s == NULL | |
1032 | || !bfd_set_section_flags (filler_bfd, reloc_s, | |
1033 | (SEC_HAS_CONTENTS | |
1034 | | SEC_ALLOC | |
1035 | | SEC_LOAD | |
1036 | | SEC_KEEP | |
1037 | | SEC_IN_MEMORY))) | |
1038 | { | |
d003af55 | 1039 | einfo (_("%X%P: can not create .reloc section: %E\n")); |
252b5132 RH |
1040 | return; |
1041 | } | |
775cabad | 1042 | |
252b5132 RH |
1043 | bfd_set_section_size (filler_bfd, reloc_s, 0); |
1044 | ||
1045 | ldlang_add_file (filler_file); | |
1046 | } | |
1047 | ||
775cabad | 1048 | /* Gather all the exported symbols and build the .edata section. */ |
252b5132 RH |
1049 | |
1050 | static void | |
1579bae1 | 1051 | generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 RH |
1052 | { |
1053 | int i, next_ordinal; | |
1054 | int name_table_size = 0; | |
1055 | const char *dlnp; | |
1056 | ||
1057 | /* First, we need to know how many exported symbols there are, | |
5cc18311 | 1058 | and what the range of ordinals is. */ |
252b5132 | 1059 | if (pe_def_file->name) |
775cabad | 1060 | dll_name = pe_def_file->name; |
252b5132 RH |
1061 | else |
1062 | { | |
1063 | dll_name = abfd->filename; | |
775cabad | 1064 | |
252b5132 | 1065 | for (dlnp = dll_name; *dlnp; dlnp++) |
775cabad NC |
1066 | if (*dlnp == '\\' || *dlnp == '/' || *dlnp == ':') |
1067 | dll_name = dlnp + 1; | |
252b5132 RH |
1068 | } |
1069 | ||
1070 | if (count_with_ordinals && max_ordinal > count_exported) | |
1071 | { | |
1072 | if (min_ordinal > max_ordinal - count_exported + 1) | |
1073 | min_ordinal = max_ordinal - count_exported + 1; | |
1074 | } | |
1075 | else | |
1076 | { | |
1077 | min_ordinal = 1; | |
1078 | max_ordinal = count_exported; | |
1079 | } | |
252b5132 | 1080 | |
775cabad | 1081 | export_table_size = max_ordinal - min_ordinal + 1; |
1579bae1 | 1082 | exported_symbols = xmalloc (export_table_size * sizeof (int)); |
252b5132 RH |
1083 | for (i = 0; i < export_table_size; i++) |
1084 | exported_symbols[i] = -1; | |
1085 | ||
86b1cc60 | 1086 | /* Now we need to assign ordinals to those that don't have them. */ |
252b5132 RH |
1087 | for (i = 0; i < NE; i++) |
1088 | { | |
6c19b93b AM |
1089 | if (exported_symbol_sections[i] |
1090 | || pe_def_file->exports[i].flag_forward) | |
252b5132 RH |
1091 | { |
1092 | if (pe_def_file->exports[i].ordinal != -1) | |
1093 | { | |
1094 | int ei = pe_def_file->exports[i].ordinal - min_ordinal; | |
1095 | int pi = exported_symbols[ei]; | |
775cabad | 1096 | |
252b5132 RH |
1097 | if (pi != -1) |
1098 | { | |
1099 | /* xgettext:c-format */ | |
df5f2391 | 1100 | einfo (_("%X%P: error: ordinal used twice: %d (%s vs %s)\n"), |
252b5132 RH |
1101 | pe_def_file->exports[i].ordinal, |
1102 | pe_def_file->exports[i].name, | |
1103 | pe_def_file->exports[pi].name); | |
1104 | } | |
1105 | exported_symbols[ei] = i; | |
1106 | } | |
7fcab871 KT |
1107 | if (pe_def_file->exports[i].its_name) |
1108 | name_table_size += strlen (pe_def_file->exports[i].its_name) + 1; | |
1109 | else | |
1110 | name_table_size += strlen (pe_def_file->exports[i].name) + 1; | |
252b5132 | 1111 | } |
a8d701fd DS |
1112 | |
1113 | /* Reserve space for the forward name. */ | |
1114 | if (pe_def_file->exports[i].flag_forward) | |
1115 | { | |
1116 | name_table_size += strlen (pe_def_file->exports[i].internal_name) + 1; | |
1117 | } | |
252b5132 RH |
1118 | } |
1119 | ||
1120 | next_ordinal = min_ordinal; | |
1121 | for (i = 0; i < NE; i++) | |
6c19b93b AM |
1122 | if ((exported_symbol_sections[i] |
1123 | || pe_def_file->exports[i].flag_forward) | |
1124 | && pe_def_file->exports[i].ordinal == -1) | |
a8d701fd DS |
1125 | { |
1126 | while (exported_symbols[next_ordinal - min_ordinal] != -1) | |
1127 | next_ordinal++; | |
775cabad | 1128 | |
a8d701fd DS |
1129 | exported_symbols[next_ordinal - min_ordinal] = i; |
1130 | pe_def_file->exports[i].ordinal = next_ordinal; | |
1131 | } | |
252b5132 | 1132 | |
611a3ca9 NC |
1133 | /* PR 12969: Check for more than 1^16 ordinals. */ |
1134 | if (max_ordinal > 65535 || next_ordinal > 65535) | |
1135 | /* xgettext:c-format */ | |
df5f2391 | 1136 | einfo(_("%X%P: error: export ordinal too large: %d\n"), |
611a3ca9 NC |
1137 | max_ordinal > next_ordinal ? max_ordinal : next_ordinal); |
1138 | ||
86b1cc60 | 1139 | /* OK, now we can allocate some memory. */ |
775cabad NC |
1140 | edata_sz = (40 /* directory */ |
1141 | + 4 * export_table_size /* addresses */ | |
252b5132 RH |
1142 | + 4 * count_exported_byname /* name ptrs */ |
1143 | + 2 * count_exported_byname /* ordinals */ | |
1144 | + name_table_size + strlen (dll_name) + 1); | |
1145 | } | |
1146 | ||
8a5b676c | 1147 | /* Fill the exported symbol offsets. The preliminary work has already |
c1711530 | 1148 | been done in process_def_file_and_drectve(). */ |
8a5b676c DD |
1149 | |
1150 | static void | |
1579bae1 | 1151 | fill_exported_offsets (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
8a5b676c | 1152 | { |
f0c87f88 | 1153 | int i; |
8a5b676c | 1154 | struct bfd_link_hash_entry *blhe; |
5cc18311 | 1155 | |
8a5b676c DD |
1156 | for (i = 0; i < pe_def_file->num_exports; i++) |
1157 | { | |
1579bae1 | 1158 | char *name; |
775cabad | 1159 | |
1579bae1 | 1160 | name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2); |
c9e38879 | 1161 | if (pe_details->underscored |
6c19b93b | 1162 | && *pe_def_file->exports[i].internal_name != '@') |
8a5b676c DD |
1163 | { |
1164 | *name = '_'; | |
1165 | strcpy (name + 1, pe_def_file->exports[i].internal_name); | |
1166 | } | |
1167 | else | |
1168 | strcpy (name, pe_def_file->exports[i].internal_name); | |
1169 | ||
1170 | blhe = bfd_link_hash_lookup (info->hash, | |
1171 | name, | |
b34976b6 | 1172 | FALSE, FALSE, TRUE); |
8a5b676c | 1173 | |
1579bae1 | 1174 | if (blhe && blhe->type == bfd_link_hash_defined) |
775cabad NC |
1175 | exported_symbol_offsets[i] = blhe->u.def.value; |
1176 | ||
8a5b676c DD |
1177 | free (name); |
1178 | } | |
1179 | } | |
1180 | ||
252b5132 | 1181 | static void |
1579bae1 | 1182 | fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
252b5132 | 1183 | { |
03a1c9a7 | 1184 | int s, hint; |
252b5132 | 1185 | unsigned char *edirectory; |
2f9636ba AM |
1186 | unsigned char *eaddresses; |
1187 | unsigned char *enameptrs; | |
1188 | unsigned char *eordinals; | |
47639182 | 1189 | char *enamestr; |
252b5132 | 1190 | |
1579bae1 | 1191 | edata_d = xmalloc (edata_sz); |
252b5132 | 1192 | |
86b1cc60 | 1193 | /* Note use of array pointer math here. */ |
252b5132 | 1194 | edirectory = edata_d; |
c7e2358a | 1195 | eaddresses = edirectory + 40; |
2f9636ba AM |
1196 | enameptrs = eaddresses + 4 * export_table_size; |
1197 | eordinals = enameptrs + 4 * count_exported_byname; | |
47639182 | 1198 | enamestr = (char *) eordinals + 2 * count_exported_byname; |
252b5132 | 1199 | |
1579bae1 AM |
1200 | #define ERVA(ptr) (((unsigned char *)(ptr) - edata_d) \ |
1201 | + edata_s->output_section->vma - image_base) | |
252b5132 | 1202 | |
c2a94a7a | 1203 | memset (edata_d, 0, edata_sz); |
0cb112f7 CF |
1204 | |
1205 | if (pe_data (abfd)->insert_timestamp) | |
1206 | H_PUT_32 (abfd, time (0), edata_d + 4); | |
1207 | ||
252b5132 RH |
1208 | if (pe_def_file->version_major != -1) |
1209 | { | |
1210 | bfd_put_16 (abfd, pe_def_file->version_major, edata_d + 8); | |
1211 | bfd_put_16 (abfd, pe_def_file->version_minor, edata_d + 10); | |
1212 | } | |
775cabad | 1213 | |
252b5132 RH |
1214 | bfd_put_32 (abfd, ERVA (enamestr), edata_d + 12); |
1215 | strcpy (enamestr, dll_name); | |
1216 | enamestr += strlen (enamestr) + 1; | |
1217 | bfd_put_32 (abfd, min_ordinal, edata_d + 16); | |
1218 | bfd_put_32 (abfd, export_table_size, edata_d + 20); | |
1219 | bfd_put_32 (abfd, count_exported_byname, edata_d + 24); | |
1220 | bfd_put_32 (abfd, ERVA (eaddresses), edata_d + 28); | |
1221 | bfd_put_32 (abfd, ERVA (enameptrs), edata_d + 32); | |
1222 | bfd_put_32 (abfd, ERVA (eordinals), edata_d + 36); | |
1223 | ||
8a5b676c DD |
1224 | fill_exported_offsets (abfd, info); |
1225 | ||
03a1c9a7 NC |
1226 | /* Ok, now for the filling in part. |
1227 | Scan alphabetically - ie the ordering in the exports[] table, | |
1228 | rather than by ordinal - the ordering in the exported_symbol[] | |
1229 | table. See dlltool.c and: | |
6c19b93b | 1230 | http://sources.redhat.com/ml/binutils/2003-04/msg00379.html |
1579bae1 | 1231 | for more information. */ |
252b5132 | 1232 | hint = 0; |
03a1c9a7 | 1233 | for (s = 0; s < NE; s++) |
252b5132 | 1234 | { |
f5a95868 | 1235 | struct bfd_section *ssec = exported_symbol_sections[s]; |
6c19b93b AM |
1236 | if (pe_def_file->exports[s].ordinal != -1 |
1237 | && (pe_def_file->exports[s].flag_forward || ssec != NULL)) | |
252b5132 | 1238 | { |
45b1f63c | 1239 | int ord = pe_def_file->exports[s].ordinal; |
252b5132 | 1240 | |
a8d701fd DS |
1241 | if (pe_def_file->exports[s].flag_forward) |
1242 | { | |
1243 | bfd_put_32 (abfd, ERVA (enamestr), | |
6c19b93b | 1244 | eaddresses + 4 * (ord - min_ordinal)); |
a8d701fd DS |
1245 | |
1246 | strcpy (enamestr, pe_def_file->exports[s].internal_name); | |
1247 | enamestr += strlen (pe_def_file->exports[s].internal_name) + 1; | |
1248 | } | |
1249 | else | |
1250 | { | |
6ca0987a | 1251 | bfd_vma srva = (exported_symbol_offsets[s] |
a8d701fd DS |
1252 | + ssec->output_section->vma |
1253 | + ssec->output_offset); | |
1254 | ||
1255 | bfd_put_32 (abfd, srva - image_base, | |
6c19b93b | 1256 | eaddresses + 4 * (ord - min_ordinal)); |
a8d701fd | 1257 | } |
775cabad | 1258 | |
252b5132 RH |
1259 | if (!pe_def_file->exports[s].flag_noname) |
1260 | { | |
1261 | char *ename = pe_def_file->exports[s].name; | |
7fcab871 KT |
1262 | if (pe_def_file->exports[s].its_name) |
1263 | ename = pe_def_file->exports[s].its_name; | |
03a1c9a7 | 1264 | |
2f9636ba AM |
1265 | bfd_put_32 (abfd, ERVA (enamestr), enameptrs); |
1266 | enameptrs += 4; | |
252b5132 RH |
1267 | strcpy (enamestr, ename); |
1268 | enamestr += strlen (enamestr) + 1; | |
2f9636ba AM |
1269 | bfd_put_16 (abfd, ord - min_ordinal, eordinals); |
1270 | eordinals += 2; | |
252b5132 RH |
1271 | pe_def_file->exports[s].hint = hint++; |
1272 | } | |
252b5132 RH |
1273 | } |
1274 | } | |
1275 | } | |
1276 | ||
b044cda1 | 1277 | |
198beae2 | 1278 | static struct bfd_section *current_sec; |
b044cda1 | 1279 | |
317ff008 EB |
1280 | static void |
1281 | pe_walk_relocs (struct bfd_link_info *info, | |
1282 | char *name, | |
1283 | const char *symname, | |
1284 | struct bfd_hash_table *import_hash, | |
1285 | void (*cb) (arelent *, asection *, char *, const char *)) | |
b044cda1 CW |
1286 | { |
1287 | bfd *b; | |
0d888aac | 1288 | asection *s; |
b044cda1 | 1289 | |
c72f2fb2 | 1290 | for (b = info->input_bfds; b; b = b->link.next) |
b044cda1 | 1291 | { |
775cabad | 1292 | asymbol **symbols; |
775cabad | 1293 | |
5c1d2f5f AM |
1294 | if (!bfd_generic_link_read_symbols (b)) |
1295 | { | |
df5f2391 | 1296 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), b); |
5c1d2f5f AM |
1297 | return; |
1298 | } | |
1299 | ||
1300 | symbols = bfd_get_outsymbols (b); | |
b044cda1 CW |
1301 | |
1302 | for (s = b->sections; s; s = s->next) | |
1303 | { | |
775cabad NC |
1304 | arelent **relocs; |
1305 | int relsize, nrelocs, i; | |
b044cda1 CW |
1306 | int flags = bfd_get_section_flags (b, s); |
1307 | ||
775cabad | 1308 | /* Skip discarded linkonce sections. */ |
b044cda1 CW |
1309 | if (flags & SEC_LINK_ONCE |
1310 | && s->output_section == bfd_abs_section_ptr) | |
1311 | continue; | |
1312 | ||
0d888aac | 1313 | current_sec = s; |
b044cda1 | 1314 | |
b044cda1 | 1315 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1316 | relocs = xmalloc (relsize); |
b044cda1 CW |
1317 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1318 | ||
1319 | for (i = 0; i < nrelocs; i++) | |
1320 | { | |
fc0a2244 | 1321 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad | 1322 | |
317ff008 EB |
1323 | /* Warning: the callback needs to be passed NAME directly. */ |
1324 | if (import_hash) | |
1325 | { | |
1326 | if (bfd_hash_lookup (import_hash, sym->name, FALSE, FALSE)) | |
1327 | { | |
1328 | strcpy (name, sym->name); | |
1329 | cb (relocs[i], s, name, symname); | |
1330 | } | |
1331 | } | |
1332 | else | |
1333 | { | |
1334 | if (strcmp (name, sym->name) == 0) | |
1335 | cb (relocs[i], s, name, symname); | |
1336 | } | |
b044cda1 | 1337 | } |
775cabad | 1338 | |
b044cda1 | 1339 | free (relocs); |
775cabad | 1340 | |
b044cda1 CW |
1341 | /* Warning: the allocated symbols are remembered in BFD and reused |
1342 | later, so don't free them! */ | |
1343 | /* free (symbols); */ | |
1344 | } | |
1345 | } | |
1346 | } | |
1347 | ||
317ff008 EB |
1348 | void |
1349 | pe_find_data_imports (const char *symhead, | |
1350 | void (*cb) (arelent *, asection *, char *, const char *)) | |
1351 | { | |
1352 | struct bfd_link_hash_entry *undef; | |
1353 | const size_t headlen = strlen (symhead); | |
1354 | size_t namelen = 0; | |
1355 | char *buf, *name; | |
1356 | struct bfd_hash_table *import_hash; | |
1357 | ||
1358 | for (undef = link_info.hash->undefs; undef; undef = undef->u.undef.next) | |
1359 | if (undef->type == bfd_link_hash_undefined) | |
1360 | { | |
1361 | size_t len = strlen (undef->root.string); | |
1362 | if (namelen < len) | |
1363 | namelen = len; | |
1364 | } | |
1365 | if (namelen == 0) | |
1366 | return; | |
1367 | ||
1368 | /* For the pseudo-relocation support version 2, we can collect the symbols | |
1369 | that are subject to auto-import and adjust the relocations en masse. */ | |
1370 | if (link_info.pei386_runtime_pseudo_reloc == 2) | |
1371 | { | |
1372 | import_hash | |
1373 | = (struct bfd_hash_table *) xmalloc (sizeof (struct bfd_hash_table)); | |
1374 | if (!bfd_hash_table_init (import_hash, | |
1375 | bfd_hash_newfunc, | |
1376 | sizeof (struct bfd_hash_entry))) | |
1377 | einfo (_("%F%P: bfd_hash_table_init failed: %E\n")); | |
1378 | } | |
1379 | else | |
1380 | import_hash = NULL; | |
1381 | ||
1382 | /* We are being a bit cunning here. The buffer will have space for | |
1383 | prefixes at the beginning. The prefix is modified here and in a | |
1384 | number of functions called from this function. */ | |
1385 | #define PREFIX_LEN 32 | |
1386 | buf = xmalloc (PREFIX_LEN + namelen + 1); | |
1387 | name = buf + PREFIX_LEN; | |
1388 | ||
1389 | for (undef = link_info.hash->undefs; undef; undef = undef->u.undef.next) | |
1390 | if (undef->type == bfd_link_hash_undefined) | |
1391 | { | |
1392 | struct bfd_link_hash_entry *sym; | |
1393 | char *impname; | |
1394 | ||
1395 | if (pe_dll_extra_pe_debug) | |
1396 | printf ("%s:%s\n", __FUNCTION__, undef->root.string); | |
1397 | ||
1398 | strcpy (name, undef->root.string); | |
1399 | impname = name - (sizeof "__imp_" - 1); | |
1400 | memcpy (impname, "__imp_", sizeof "__imp_" - 1); | |
1401 | ||
1402 | sym = bfd_link_hash_lookup (link_info.hash, impname, 0, 0, 1); | |
1403 | ||
1404 | if (sym && sym->type == bfd_link_hash_defined) | |
1405 | { | |
1406 | if (import_hash) | |
1407 | bfd_hash_lookup (import_hash, undef->root.string, TRUE, FALSE); | |
1408 | else | |
1409 | { | |
1410 | bfd *b = sym->u.def.section->owner; | |
1411 | const char *symname = NULL; | |
1412 | asymbol **symbols; | |
1413 | int nsyms, i; | |
1414 | ||
1415 | if (!bfd_generic_link_read_symbols (b)) | |
1416 | { | |
1417 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), b); | |
1418 | return; | |
1419 | } | |
1420 | ||
1421 | symbols = bfd_get_outsymbols (b); | |
1422 | nsyms = bfd_get_symcount (b); | |
1423 | ||
1424 | for (i = 0; i < nsyms; i++) | |
1425 | if (strncmp (symbols[i]->name, symhead, headlen) == 0) | |
1426 | { | |
1427 | if (pe_dll_extra_pe_debug) | |
1428 | printf ("->%s\n", symbols[i]->name); | |
1429 | ||
1430 | symname = symbols[i]->name + headlen; | |
1431 | break; | |
1432 | } | |
1433 | ||
1434 | /* If the symobl isn't part of an import table, there is no | |
1435 | point in building a fixup, this would give rise to link | |
1436 | errors for mangled symbols instead of the original one. */ | |
1437 | if (symname) | |
1438 | pe_walk_relocs (&link_info, name, symname, NULL, cb); | |
1439 | else | |
1440 | continue; | |
1441 | } | |
1442 | ||
1443 | /* Let's differentiate it somehow from defined. */ | |
1444 | undef->type = bfd_link_hash_defweak; | |
1445 | undef->u.def.value = sym->u.def.value; | |
1446 | undef->u.def.section = sym->u.def.section; | |
1447 | ||
1448 | if (link_info.pei386_auto_import == -1) | |
1449 | { | |
1450 | static bfd_boolean warned = FALSE; | |
1451 | ||
1452 | info_msg (_("Info: resolving %s by linking to %s " | |
1453 | "(auto-import)\n"), name, impname); | |
1454 | ||
1455 | /* PR linker/4844. */ | |
1456 | if (!warned) | |
1457 | { | |
1458 | einfo (_("%P: warning: auto-importing has been activated " | |
1459 | "without --enable-auto-import specified on the " | |
1460 | "command line; this should work unless it " | |
1461 | "involves constant data structures referencing " | |
1462 | "symbols from auto-imported DLLs\n")); | |
1463 | warned = TRUE; | |
1464 | } | |
1465 | } | |
1466 | } | |
1467 | } | |
1468 | ||
1469 | /* If we have the import hash table, walk the relocations only once. */ | |
1470 | if (import_hash) | |
1471 | { | |
1472 | pe_walk_relocs (&link_info, name, NULL, import_hash, cb); | |
1473 | bfd_hash_table_free (import_hash); | |
1474 | free (import_hash); | |
1475 | } | |
1476 | ||
1477 | free (buf); | |
1478 | } | |
1479 | ||
775cabad | 1480 | /* Gather all the relocations and build the .reloc section. */ |
252b5132 RH |
1481 | |
1482 | static void | |
1579bae1 | 1483 | generate_reloc (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
1484 | { |
1485 | ||
86b1cc60 | 1486 | /* For .reloc stuff. */ |
c6c37250 | 1487 | reloc_data_type *reloc_data; |
252b5132 RH |
1488 | int total_relocs = 0; |
1489 | int i; | |
6ca0987a KT |
1490 | bfd_vma sec_page = (bfd_vma) -1; |
1491 | bfd_vma page_ptr, page_count; | |
252b5132 RH |
1492 | int bi; |
1493 | bfd *b; | |
198beae2 | 1494 | struct bfd_section *s; |
252b5132 RH |
1495 | |
1496 | total_relocs = 0; | |
c72f2fb2 | 1497 | for (b = info->input_bfds; b; b = b->link.next) |
252b5132 RH |
1498 | for (s = b->sections; s; s = s->next) |
1499 | total_relocs += s->reloc_count; | |
1500 | ||
1579bae1 | 1501 | reloc_data = xmalloc (total_relocs * sizeof (reloc_data_type)); |
252b5132 RH |
1502 | |
1503 | total_relocs = 0; | |
1504 | bi = 0; | |
c72f2fb2 | 1505 | for (bi = 0, b = info->input_bfds; b; bi++, b = b->link.next) |
252b5132 RH |
1506 | { |
1507 | arelent **relocs; | |
91d6fa6a | 1508 | int relsize, nrelocs; |
252b5132 RH |
1509 | |
1510 | for (s = b->sections; s; s = s->next) | |
1511 | { | |
6ca0987a | 1512 | bfd_vma sec_vma = s->output_section->vma + s->output_offset; |
252b5132 | 1513 | asymbol **symbols; |
252b5132 | 1514 | |
86b1cc60 | 1515 | /* If it's not loaded, we don't need to relocate it this way. */ |
252b5132 RH |
1516 | if (!(s->output_section->flags & SEC_LOAD)) |
1517 | continue; | |
1518 | ||
1519 | /* I don't know why there would be a reloc for these, but I've | |
86b1cc60 | 1520 | seen it happen - DJ */ |
45dfa85a | 1521 | if (s->output_section == bfd_abs_section_ptr) |
252b5132 RH |
1522 | continue; |
1523 | ||
1524 | if (s->output_section->vma == 0) | |
1525 | { | |
86b1cc60 | 1526 | /* Huh? Shouldn't happen, but punt if it does. */ |
df5f2391 | 1527 | einfo (_("%P: zero vma section reloc detected: `%s' #%d f=%d\n"), |
252b5132 RH |
1528 | s->output_section->name, s->output_section->index, |
1529 | s->output_section->flags); | |
1530 | continue; | |
1531 | } | |
1532 | ||
5c1d2f5f AM |
1533 | if (!bfd_generic_link_read_symbols (b)) |
1534 | { | |
df5f2391 | 1535 | einfo (_("%F%P: %pB: could not read symbols: %E\n"), b); |
5c1d2f5f AM |
1536 | return; |
1537 | } | |
252b5132 | 1538 | |
5c1d2f5f | 1539 | symbols = bfd_get_outsymbols (b); |
252b5132 | 1540 | relsize = bfd_get_reloc_upper_bound (b, s); |
1579bae1 | 1541 | relocs = xmalloc (relsize); |
252b5132 RH |
1542 | nrelocs = bfd_canonicalize_reloc (b, s, relocs, symbols); |
1543 | ||
1544 | for (i = 0; i < nrelocs; i++) | |
1545 | { | |
b044cda1 | 1546 | if (pe_dll_extra_pe_debug) |
b7a26f91 | 1547 | { |
fc0a2244 | 1548 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
b7a26f91 | 1549 | printf ("rel: %s\n", sym->name); |
b044cda1 | 1550 | } |
252b5132 | 1551 | if (!relocs[i]->howto->pc_relative |
c6c37250 | 1552 | && relocs[i]->howto->type != pe_details->imagebase_reloc) |
252b5132 | 1553 | { |
fc0a2244 | 1554 | struct bfd_symbol *sym = *relocs[i]->sym_ptr_ptr; |
775cabad | 1555 | |
1b610c93 | 1556 | /* Don't create relocs for undefined weak symbols. */ |
49314f87 DS |
1557 | if (sym->flags == BSF_WEAK) |
1558 | { | |
1559 | struct bfd_link_hash_entry *blhe | |
9dda37c1 | 1560 | = bfd_wrapped_link_hash_lookup (abfd, info, sym->name, |
49314f87 | 1561 | FALSE, FALSE, FALSE); |
9dda37c1 DK |
1562 | if (blhe && blhe->type == bfd_link_hash_undefweak) |
1563 | { | |
1564 | /* Check aux sym and see if it is defined or not. */ | |
1565 | struct coff_link_hash_entry *h, *h2; | |
1566 | h = (struct coff_link_hash_entry *)blhe; | |
1567 | if (h->symbol_class != C_NT_WEAK || h->numaux != 1) | |
1568 | continue; | |
1569 | h2 = h->auxbfd->tdata.coff_obj_data->sym_hashes | |
1570 | [h->aux->x_sym.x_tagndx.l]; | |
1571 | /* We don't want a base reloc if the aux sym is not | |
1572 | found, undefined, or if it is the constant ABS | |
1573 | zero default value. (We broaden that slightly by | |
1574 | not testing the value, just the section; there's | |
1575 | no reason we'd want a reference to any absolute | |
1576 | address to get relocated during rebasing). */ | |
1577 | if (!h2 || h2->root.type == bfd_link_hash_undefined | |
45dfa85a | 1578 | || h2->root.u.def.section == bfd_abs_section_ptr) |
9dda37c1 DK |
1579 | continue; |
1580 | } | |
1581 | else if (!blhe || blhe->type != bfd_link_hash_defined) | |
1582 | continue; | |
49314f87 | 1583 | } |
0432176d DK |
1584 | /* Nor for Dwarf FDE references to discarded sections. */ |
1585 | else if (bfd_is_abs_section (sym->section->output_section)) | |
1586 | { | |
1587 | /* We only ignore relocs from .eh_frame sections, as | |
1588 | they are discarded by the final link rather than | |
1589 | resolved against the kept section. */ | |
1590 | if (!strcmp (s->name, ".eh_frame")) | |
1591 | continue; | |
1592 | } | |
49314f87 | 1593 | |
c6c37250 | 1594 | reloc_data[total_relocs].vma = sec_vma + relocs[i]->address; |
5cc18311 | 1595 | |
344a211f | 1596 | #define BITS_AND_SHIFT(bits, shift) (bits * 1000 | shift) |
5cc18311 | 1597 | |
344a211f NC |
1598 | switch BITS_AND_SHIFT (relocs[i]->howto->bitsize, |
1599 | relocs[i]->howto->rightshift) | |
252b5132 | 1600 | { |
99ad8390 NC |
1601 | #ifdef pe_use_x86_64 |
1602 | case BITS_AND_SHIFT (64, 0): | |
1603 | reloc_data[total_relocs].type = 10; | |
1604 | total_relocs++; | |
1605 | break; | |
1606 | #endif | |
344a211f | 1607 | case BITS_AND_SHIFT (32, 0): |
c6c37250 DD |
1608 | reloc_data[total_relocs].type = 3; |
1609 | total_relocs++; | |
252b5132 | 1610 | break; |
344a211f NC |
1611 | case BITS_AND_SHIFT (16, 0): |
1612 | reloc_data[total_relocs].type = 2; | |
1613 | total_relocs++; | |
1614 | break; | |
1615 | case BITS_AND_SHIFT (16, 16): | |
1616 | reloc_data[total_relocs].type = 4; | |
86b1cc60 KH |
1617 | /* FIXME: we can't know the symbol's right value |
1618 | yet, but we probably can safely assume that | |
1619 | CE will relocate us in 64k blocks, so leaving | |
1620 | it zero is safe. */ | |
344a211f NC |
1621 | reloc_data[total_relocs].extra = 0; |
1622 | total_relocs++; | |
1623 | break; | |
1624 | case BITS_AND_SHIFT (26, 2): | |
1625 | reloc_data[total_relocs].type = 5; | |
1626 | total_relocs++; | |
1627 | break; | |
fea39bcb | 1628 | case BITS_AND_SHIFT (24, 2): |
d3793eaa NC |
1629 | /* FIXME: 0 is ARM_26D, it is defined in bfd/coff-arm.c |
1630 | Those ARM_xxx definitions should go in proper | |
1631 | header someday. */ | |
1632 | if (relocs[i]->howto->type == 0 | |
1633 | /* Older GNU linkers used 5 instead of 0 for this reloc. */ | |
1634 | || relocs[i]->howto->type == 5) | |
fea39bcb NC |
1635 | /* This is an ARM_26D reloc, which is an ARM_26 reloc |
1636 | that has already been fully processed during a | |
1637 | previous link stage, so ignore it here. */ | |
1638 | break; | |
1639 | /* Fall through. */ | |
252b5132 RH |
1640 | default: |
1641 | /* xgettext:c-format */ | |
df5f2391 | 1642 | einfo (_("%X%P: error: %d-bit reloc in dll\n"), |
252b5132 RH |
1643 | relocs[i]->howto->bitsize); |
1644 | break; | |
1645 | } | |
1646 | } | |
1647 | } | |
1648 | free (relocs); | |
86b1cc60 KH |
1649 | /* Warning: the allocated symbols are remembered in BFD and |
1650 | reused later, so don't free them! */ | |
252b5132 RH |
1651 | } |
1652 | } | |
1653 | ||
1654 | /* At this point, we have total_relocs relocation addresses in | |
1655 | reloc_addresses, which are all suitable for the .reloc section. | |
5cc18311 | 1656 | We must now create the new sections. */ |
c6c37250 | 1657 | qsort (reloc_data, total_relocs, sizeof (*reloc_data), reloc_sort); |
252b5132 RH |
1658 | |
1659 | for (i = 0; i < total_relocs; i++) | |
1660 | { | |
6ca0987a | 1661 | bfd_vma this_page = (reloc_data[i].vma >> 12); |
5cc18311 | 1662 | |
252b5132 RH |
1663 | if (this_page != sec_page) |
1664 | { | |
775cabad | 1665 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
252b5132 RH |
1666 | reloc_sz += 8; |
1667 | sec_page = this_page; | |
1668 | } | |
5cc18311 | 1669 | |
252b5132 | 1670 | reloc_sz += 2; |
5cc18311 | 1671 | |
344a211f NC |
1672 | if (reloc_data[i].type == 4) |
1673 | reloc_sz += 2; | |
252b5132 | 1674 | } |
b7a26f91 | 1675 | |
775cabad | 1676 | reloc_sz = (reloc_sz + 3) & ~3; /* 4-byte align. */ |
1579bae1 | 1677 | reloc_d = xmalloc (reloc_sz); |
6ca0987a | 1678 | sec_page = (bfd_vma) -1; |
252b5132 | 1679 | reloc_sz = 0; |
6ca0987a | 1680 | page_ptr = (bfd_vma) -1; |
252b5132 | 1681 | page_count = 0; |
775cabad | 1682 | |
252b5132 RH |
1683 | for (i = 0; i < total_relocs; i++) |
1684 | { | |
6ca0987a KT |
1685 | bfd_vma rva = reloc_data[i].vma - image_base; |
1686 | bfd_vma this_page = (rva & ~0xfff); | |
775cabad | 1687 | |
252b5132 RH |
1688 | if (this_page != sec_page) |
1689 | { | |
1690 | while (reloc_sz & 3) | |
1691 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1692 | |
6ca0987a | 1693 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1694 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1695 | |
252b5132 RH |
1696 | bfd_put_32 (abfd, this_page, reloc_d + reloc_sz); |
1697 | page_ptr = reloc_sz; | |
1698 | reloc_sz += 8; | |
1699 | sec_page = this_page; | |
1700 | page_count = 0; | |
1701 | } | |
775cabad | 1702 | |
d643799d | 1703 | bfd_put_16 (abfd, (rva & 0xfff) + (reloc_data[i].type << 12), |
c6c37250 | 1704 | reloc_d + reloc_sz); |
252b5132 | 1705 | reloc_sz += 2; |
775cabad | 1706 | |
c6c37250 DD |
1707 | if (reloc_data[i].type == 4) |
1708 | { | |
1709 | bfd_put_16 (abfd, reloc_data[i].extra, reloc_d + reloc_sz); | |
1710 | reloc_sz += 2; | |
1711 | } | |
775cabad | 1712 | |
252b5132 RH |
1713 | page_count++; |
1714 | } | |
775cabad | 1715 | |
252b5132 RH |
1716 | while (reloc_sz & 3) |
1717 | reloc_d[reloc_sz++] = 0; | |
775cabad | 1718 | |
6ca0987a | 1719 | if (page_ptr != (bfd_vma) -1) |
252b5132 | 1720 | bfd_put_32 (abfd, reloc_sz - page_ptr, reloc_d + page_ptr + 4); |
775cabad | 1721 | |
eea6121a | 1722 | while (reloc_sz < reloc_s->size) |
252b5132 RH |
1723 | reloc_d[reloc_sz++] = 0; |
1724 | } | |
1725 | ||
775cabad NC |
1726 | /* Given the exiting def_file structure, print out a .DEF file that |
1727 | corresponds to it. */ | |
252b5132 RH |
1728 | |
1729 | static void | |
1579bae1 | 1730 | quoteput (char *s, FILE *f, int needs_quotes) |
252b5132 RH |
1731 | { |
1732 | char *cp; | |
775cabad | 1733 | |
252b5132 RH |
1734 | for (cp = s; *cp; cp++) |
1735 | if (*cp == '\'' | |
1736 | || *cp == '"' | |
1737 | || *cp == '\\' | |
3882b010 | 1738 | || ISSPACE (*cp) |
252b5132 RH |
1739 | || *cp == ',' |
1740 | || *cp == ';') | |
1741 | needs_quotes = 1; | |
775cabad | 1742 | |
252b5132 RH |
1743 | if (needs_quotes) |
1744 | { | |
1745 | putc ('"', f); | |
775cabad | 1746 | |
252b5132 RH |
1747 | while (*s) |
1748 | { | |
1749 | if (*s == '"' || *s == '\\') | |
1750 | putc ('\\', f); | |
775cabad | 1751 | |
252b5132 RH |
1752 | putc (*s, f); |
1753 | s++; | |
1754 | } | |
775cabad | 1755 | |
252b5132 RH |
1756 | putc ('"', f); |
1757 | } | |
1758 | else | |
1759 | fputs (s, f); | |
1760 | } | |
1761 | ||
1762 | void | |
1579bae1 | 1763 | pe_dll_generate_def_file (const char *pe_out_def_filename) |
252b5132 RH |
1764 | { |
1765 | int i; | |
1766 | FILE *out = fopen (pe_out_def_filename, "w"); | |
775cabad | 1767 | |
252b5132 | 1768 | if (out == NULL) |
775cabad | 1769 | /* xgettext:c-format */ |
df5f2391 | 1770 | einfo (_("%P: can't open output def file %s\n"), |
611a3ca9 | 1771 | pe_out_def_filename); |
252b5132 RH |
1772 | |
1773 | if (pe_def_file) | |
1774 | { | |
1775 | if (pe_def_file->name) | |
1776 | { | |
1777 | if (pe_def_file->is_dll) | |
1778 | fprintf (out, "LIBRARY "); | |
1779 | else | |
1780 | fprintf (out, "NAME "); | |
775cabad | 1781 | |
252b5132 | 1782 | quoteput (pe_def_file->name, out, 1); |
775cabad | 1783 | |
f13a99db | 1784 | if (pe_data (link_info.output_bfd)->pe_opthdr.ImageBase) |
0ead4f8d KT |
1785 | { |
1786 | fprintf (out, " BASE=0x"); | |
1787 | fprintf_vma (out, ((bfd_vma) pe_data (link_info.output_bfd)->pe_opthdr.ImageBase)); | |
1788 | } | |
252b5132 RH |
1789 | fprintf (out, "\n"); |
1790 | } | |
1791 | ||
1792 | if (pe_def_file->description) | |
1793 | { | |
1794 | fprintf (out, "DESCRIPTION "); | |
1795 | quoteput (pe_def_file->description, out, 1); | |
1796 | fprintf (out, "\n"); | |
1797 | } | |
1798 | ||
1799 | if (pe_def_file->version_minor != -1) | |
1800 | fprintf (out, "VERSION %d.%d\n", pe_def_file->version_major, | |
1801 | pe_def_file->version_minor); | |
1802 | else if (pe_def_file->version_major != -1) | |
1803 | fprintf (out, "VERSION %d\n", pe_def_file->version_major); | |
1804 | ||
1805 | if (pe_def_file->stack_reserve != -1 || pe_def_file->heap_reserve != -1) | |
1806 | fprintf (out, "\n"); | |
1807 | ||
1808 | if (pe_def_file->stack_commit != -1) | |
1809 | fprintf (out, "STACKSIZE 0x%x,0x%x\n", | |
1810 | pe_def_file->stack_reserve, pe_def_file->stack_commit); | |
1811 | else if (pe_def_file->stack_reserve != -1) | |
1812 | fprintf (out, "STACKSIZE 0x%x\n", pe_def_file->stack_reserve); | |
775cabad | 1813 | |
252b5132 RH |
1814 | if (pe_def_file->heap_commit != -1) |
1815 | fprintf (out, "HEAPSIZE 0x%x,0x%x\n", | |
1816 | pe_def_file->heap_reserve, pe_def_file->heap_commit); | |
1817 | else if (pe_def_file->heap_reserve != -1) | |
1818 | fprintf (out, "HEAPSIZE 0x%x\n", pe_def_file->heap_reserve); | |
1819 | ||
1820 | if (pe_def_file->num_section_defs > 0) | |
1821 | { | |
1822 | fprintf (out, "\nSECTIONS\n\n"); | |
775cabad | 1823 | |
252b5132 RH |
1824 | for (i = 0; i < pe_def_file->num_section_defs; i++) |
1825 | { | |
1826 | fprintf (out, " "); | |
1827 | quoteput (pe_def_file->section_defs[i].name, out, 0); | |
775cabad | 1828 | |
252b5132 RH |
1829 | if (pe_def_file->section_defs[i].class) |
1830 | { | |
1831 | fprintf (out, " CLASS "); | |
1832 | quoteput (pe_def_file->section_defs[i].class, out, 0); | |
1833 | } | |
775cabad | 1834 | |
252b5132 RH |
1835 | if (pe_def_file->section_defs[i].flag_read) |
1836 | fprintf (out, " READ"); | |
775cabad | 1837 | |
252b5132 RH |
1838 | if (pe_def_file->section_defs[i].flag_write) |
1839 | fprintf (out, " WRITE"); | |
775cabad | 1840 | |
252b5132 RH |
1841 | if (pe_def_file->section_defs[i].flag_execute) |
1842 | fprintf (out, " EXECUTE"); | |
775cabad | 1843 | |
252b5132 RH |
1844 | if (pe_def_file->section_defs[i].flag_shared) |
1845 | fprintf (out, " SHARED"); | |
775cabad | 1846 | |
252b5132 RH |
1847 | fprintf (out, "\n"); |
1848 | } | |
1849 | } | |
1850 | ||
1851 | if (pe_def_file->num_exports > 0) | |
1852 | { | |
b044cda1 | 1853 | fprintf (out, "EXPORTS\n"); |
775cabad | 1854 | |
252b5132 RH |
1855 | for (i = 0; i < pe_def_file->num_exports; i++) |
1856 | { | |
1857 | def_file_export *e = pe_def_file->exports + i; | |
1858 | fprintf (out, " "); | |
1859 | quoteput (e->name, out, 0); | |
775cabad | 1860 | |
252b5132 RH |
1861 | if (e->internal_name && strcmp (e->internal_name, e->name)) |
1862 | { | |
1863 | fprintf (out, " = "); | |
1864 | quoteput (e->internal_name, out, 0); | |
1865 | } | |
775cabad | 1866 | |
252b5132 RH |
1867 | if (e->ordinal != -1) |
1868 | fprintf (out, " @%d", e->ordinal); | |
775cabad | 1869 | |
252b5132 RH |
1870 | if (e->flag_private) |
1871 | fprintf (out, " PRIVATE"); | |
775cabad | 1872 | |
252b5132 RH |
1873 | if (e->flag_constant) |
1874 | fprintf (out, " CONSTANT"); | |
775cabad | 1875 | |
252b5132 RH |
1876 | if (e->flag_noname) |
1877 | fprintf (out, " NONAME"); | |
775cabad | 1878 | |
252b5132 RH |
1879 | if (e->flag_data) |
1880 | fprintf (out, " DATA"); | |
1881 | ||
1882 | fprintf (out, "\n"); | |
1883 | } | |
1884 | } | |
1885 | ||
1886 | if (pe_def_file->num_imports > 0) | |
1887 | { | |
1888 | fprintf (out, "\nIMPORTS\n\n"); | |
775cabad | 1889 | |
252b5132 RH |
1890 | for (i = 0; i < pe_def_file->num_imports; i++) |
1891 | { | |
1892 | def_file_import *im = pe_def_file->imports + i; | |
1893 | fprintf (out, " "); | |
775cabad | 1894 | |
252b5132 RH |
1895 | if (im->internal_name |
1896 | && (!im->name || strcmp (im->internal_name, im->name))) | |
1897 | { | |
1898 | quoteput (im->internal_name, out, 0); | |
1899 | fprintf (out, " = "); | |
1900 | } | |
775cabad | 1901 | |
252b5132 RH |
1902 | quoteput (im->module->name, out, 0); |
1903 | fprintf (out, "."); | |
775cabad | 1904 | |
252b5132 RH |
1905 | if (im->name) |
1906 | quoteput (im->name, out, 0); | |
1907 | else | |
1908 | fprintf (out, "%d", im->ordinal); | |
775cabad | 1909 | |
7fcab871 KT |
1910 | if (im->its_name) |
1911 | { | |
1912 | fprintf (out, " == "); | |
1913 | quoteput (im->its_name, out, 0); | |
1914 | } | |
1915 | ||
252b5132 RH |
1916 | fprintf (out, "\n"); |
1917 | } | |
1918 | } | |
1919 | } | |
1920 | else | |
1921 | fprintf (out, _("; no contents available\n")); | |
1922 | ||
1923 | if (fclose (out) == EOF) | |
775cabad | 1924 | /* xgettext:c-format */ |
df5f2391 | 1925 | einfo (_("%P: error closing file `%s'\n"), pe_out_def_filename); |
252b5132 RH |
1926 | } |
1927 | ||
775cabad | 1928 | /* Generate the import library. */ |
252b5132 RH |
1929 | |
1930 | static asymbol **symtab; | |
1931 | static int symptr; | |
1932 | static int tmp_seq; | |
1933 | static const char *dll_filename; | |
1934 | static char *dll_symname; | |
1935 | ||
45dfa85a | 1936 | #define UNDSEC bfd_und_section_ptr |
252b5132 RH |
1937 | |
1938 | static asection * | |
1579bae1 | 1939 | quick_section (bfd *abfd, const char *name, int flags, int align) |
252b5132 RH |
1940 | { |
1941 | asection *sec; | |
1942 | asymbol *sym; | |
1943 | ||
1944 | sec = bfd_make_section_old_way (abfd, name); | |
86b1cc60 | 1945 | bfd_set_section_flags (abfd, sec, flags | SEC_ALLOC | SEC_LOAD | SEC_KEEP); |
252b5132 | 1946 | bfd_set_section_alignment (abfd, sec, align); |
86b1cc60 | 1947 | /* Remember to undo this before trying to link internally! */ |
252b5132 RH |
1948 | sec->output_section = sec; |
1949 | ||
1950 | sym = bfd_make_empty_symbol (abfd); | |
1951 | symtab[symptr++] = sym; | |
1952 | sym->name = sec->name; | |
1953 | sym->section = sec; | |
1954 | sym->flags = BSF_LOCAL; | |
1955 | sym->value = 0; | |
1956 | ||
1957 | return sec; | |
1958 | } | |
1959 | ||
1960 | static void | |
1579bae1 AM |
1961 | quick_symbol (bfd *abfd, |
1962 | const char *n1, | |
1963 | const char *n2, | |
1964 | const char *n3, | |
1965 | asection *sec, | |
1966 | int flags, | |
1967 | int addr) | |
252b5132 RH |
1968 | { |
1969 | asymbol *sym; | |
1579bae1 | 1970 | char *name = xmalloc (strlen (n1) + strlen (n2) + strlen (n3) + 1); |
775cabad | 1971 | |
252b5132 RH |
1972 | strcpy (name, n1); |
1973 | strcat (name, n2); | |
1974 | strcat (name, n3); | |
1975 | sym = bfd_make_empty_symbol (abfd); | |
1976 | sym->name = name; | |
1977 | sym->section = sec; | |
1978 | sym->flags = flags; | |
1979 | sym->value = addr; | |
1980 | symtab[symptr++] = sym; | |
1981 | } | |
1982 | ||
1983 | static arelent *reltab = 0; | |
1984 | static int relcount = 0, relsize = 0; | |
1985 | ||
1986 | static void | |
0ead4f8d | 1987 | quick_reloc (bfd *abfd, bfd_size_type address, int which_howto, int symidx) |
252b5132 | 1988 | { |
1579bae1 | 1989 | if (relcount >= relsize - 1) |
252b5132 RH |
1990 | { |
1991 | relsize += 10; | |
1992 | if (reltab) | |
1579bae1 | 1993 | reltab = xrealloc (reltab, relsize * sizeof (arelent)); |
252b5132 | 1994 | else |
1579bae1 | 1995 | reltab = xmalloc (relsize * sizeof (arelent)); |
252b5132 RH |
1996 | } |
1997 | reltab[relcount].address = address; | |
1998 | reltab[relcount].addend = 0; | |
1999 | reltab[relcount].howto = bfd_reloc_type_lookup (abfd, which_howto); | |
2000 | reltab[relcount].sym_ptr_ptr = symtab + symidx; | |
2001 | relcount++; | |
2002 | } | |
2003 | ||
2004 | static void | |
2005 | save_relocs (asection *sec) | |
2006 | { | |
2007 | int i; | |
775cabad | 2008 | |
252b5132 RH |
2009 | sec->relocation = reltab; |
2010 | sec->reloc_count = relcount; | |
1579bae1 | 2011 | sec->orelocation = xmalloc ((relcount + 1) * sizeof (arelent *)); |
d643799d | 2012 | for (i = 0; i < relcount; i++) |
252b5132 RH |
2013 | sec->orelocation[i] = sec->relocation + i; |
2014 | sec->orelocation[relcount] = 0; | |
2015 | sec->flags |= SEC_RELOC; | |
2016 | reltab = 0; | |
2017 | relcount = relsize = 0; | |
2018 | } | |
2019 | ||
775cabad | 2020 | /* .section .idata$2 |
6c19b93b | 2021 | .global __head_my_dll |
775cabad | 2022 | __head_my_dll: |
6c19b93b AM |
2023 | .rva hname |
2024 | .long 0 | |
2025 | .long 0 | |
2026 | .rva __my_dll_iname | |
2027 | .rva fthunk | |
2028 | ||
2029 | .section .idata$5 | |
2030 | .long 0 | |
775cabad | 2031 | fthunk: |
b7a26f91 | 2032 | |
6c19b93b AM |
2033 | .section .idata$4 |
2034 | .long 0 | |
775cabad | 2035 | hname: */ |
252b5132 RH |
2036 | |
2037 | static bfd * | |
1579bae1 | 2038 | make_head (bfd *parent) |
252b5132 RH |
2039 | { |
2040 | asection *id2, *id5, *id4; | |
2041 | unsigned char *d2, *d5, *d4; | |
2042 | char *oname; | |
2043 | bfd *abfd; | |
2044 | ||
1579bae1 | 2045 | oname = xmalloc (20); |
252b5132 RH |
2046 | sprintf (oname, "d%06d.o", tmp_seq); |
2047 | tmp_seq++; | |
2048 | ||
2049 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2050 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2051 | bfd_make_writable (abfd); |
2052 | ||
2053 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2054 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2055 | |
2056 | symptr = 0; | |
1579bae1 | 2057 | symtab = xmalloc (6 * sizeof (asymbol *)); |
252b5132 RH |
2058 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
2059 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2060 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
d643799d KH |
2061 | quick_symbol (abfd, U ("_head_"), dll_symname, "", id2, BSF_GLOBAL, 0); |
2062 | quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); | |
c6c37250 DD |
2063 | |
2064 | /* OK, pay attention here. I got confused myself looking back at | |
2065 | it. We create a four-byte section to mark the beginning of the | |
2066 | list, and we include an offset of 4 in the section, so that the | |
2067 | pointer to the list points to the *end* of this section, which is | |
5cc18311 | 2068 | the start of the list of sections from other objects. */ |
252b5132 RH |
2069 | |
2070 | bfd_set_section_size (abfd, id2, 20); | |
1579bae1 | 2071 | d2 = xmalloc (20); |
252b5132 RH |
2072 | id2->contents = d2; |
2073 | memset (d2, 0, 20); | |
ce11ba6c KT |
2074 | if (pe_use_nul_prefixed_import_tables) |
2075 | d2[0] = d2[16] = PE_IDATA5_SIZE; /* Reloc addend. */ | |
252b5132 RH |
2076 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
2077 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 4); | |
2078 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 1); | |
2079 | save_relocs (id2); | |
2080 | ||
ce11ba6c KT |
2081 | if (pe_use_nul_prefixed_import_tables) |
2082 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); | |
2083 | else | |
2084 | bfd_set_section_size (abfd, id5, 0); | |
99ad8390 | 2085 | d5 = xmalloc (PE_IDATA5_SIZE); |
252b5132 | 2086 | id5->contents = d5; |
99ad8390 | 2087 | memset (d5, 0, PE_IDATA5_SIZE); |
ce11ba6c KT |
2088 | if (pe_use_nul_prefixed_import_tables) |
2089 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); | |
2090 | else | |
2091 | bfd_set_section_size (abfd, id4, 0); | |
99ad8390 | 2092 | d4 = xmalloc (PE_IDATA4_SIZE); |
252b5132 | 2093 | id4->contents = d4; |
99ad8390 | 2094 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 RH |
2095 | |
2096 | bfd_set_symtab (abfd, symtab, symptr); | |
2097 | ||
2098 | bfd_set_section_contents (abfd, id2, d2, 0, 20); | |
ce11ba6c KT |
2099 | if (pe_use_nul_prefixed_import_tables) |
2100 | { | |
2101 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
2102 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
2103 | } | |
2104 | else | |
2105 | { | |
2106 | bfd_set_section_contents (abfd, id5, d5, 0, 0); | |
2107 | bfd_set_section_contents (abfd, id4, d4, 0, 0); | |
2108 | } | |
5cc18311 | 2109 | |
252b5132 RH |
2110 | bfd_make_readable (abfd); |
2111 | return abfd; | |
2112 | } | |
2113 | ||
775cabad | 2114 | /* .section .idata$4 |
6c19b93b | 2115 | .long 0 |
99ad8390 | 2116 | [.long 0] for PE+ |
6c19b93b AM |
2117 | .section .idata$5 |
2118 | .long 0 | |
99ad8390 | 2119 | [.long 0] for PE+ |
6c19b93b AM |
2120 | .section idata$7 |
2121 | .global __my_dll_iname | |
775cabad | 2122 | __my_dll_iname: |
6c19b93b | 2123 | .asciz "my.dll" */ |
252b5132 RH |
2124 | |
2125 | static bfd * | |
1579bae1 | 2126 | make_tail (bfd *parent) |
252b5132 RH |
2127 | { |
2128 | asection *id4, *id5, *id7; | |
2129 | unsigned char *d4, *d5, *d7; | |
2130 | int len; | |
2131 | char *oname; | |
2132 | bfd *abfd; | |
2133 | ||
1579bae1 | 2134 | oname = xmalloc (20); |
252b5132 RH |
2135 | sprintf (oname, "d%06d.o", tmp_seq); |
2136 | tmp_seq++; | |
2137 | ||
2138 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2139 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2140 | bfd_make_writable (abfd); |
2141 | ||
2142 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2143 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2144 | |
2145 | symptr = 0; | |
1579bae1 | 2146 | symtab = xmalloc (5 * sizeof (asymbol *)); |
252b5132 RH |
2147 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
2148 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2149 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); | |
d643799d | 2150 | quick_symbol (abfd, U (""), dll_symname, "_iname", id7, BSF_GLOBAL, 0); |
252b5132 | 2151 | |
99ad8390 NC |
2152 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
2153 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 2154 | id4->contents = d4; |
99ad8390 | 2155 | memset (d4, 0, PE_IDATA4_SIZE); |
252b5132 | 2156 | |
99ad8390 NC |
2157 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
2158 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 2159 | id5->contents = d5; |
99ad8390 | 2160 | memset (d5, 0, PE_IDATA5_SIZE); |
252b5132 | 2161 | |
d643799d | 2162 | len = strlen (dll_filename) + 1; |
252b5132 | 2163 | if (len & 1) |
d643799d | 2164 | len++; |
252b5132 | 2165 | bfd_set_section_size (abfd, id7, len); |
1579bae1 | 2166 | d7 = xmalloc (len); |
252b5132 | 2167 | id7->contents = d7; |
47639182 | 2168 | strcpy ((char *) d7, dll_filename); |
e916811a CF |
2169 | /* If len was odd, the above |
2170 | strcpy leaves behind an undefined byte. That is harmless, | |
2171 | but we set it to 0 just so the binary dumps are pretty. */ | |
2172 | d7[len - 1] = 0; | |
252b5132 RH |
2173 | |
2174 | bfd_set_symtab (abfd, symtab, symptr); | |
2175 | ||
99ad8390 NC |
2176 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); |
2177 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); | |
252b5132 RH |
2178 | bfd_set_section_contents (abfd, id7, d7, 0, len); |
2179 | ||
2180 | bfd_make_readable (abfd); | |
2181 | return abfd; | |
2182 | } | |
2183 | ||
775cabad | 2184 | /* .text |
6c19b93b AM |
2185 | .global _function |
2186 | .global ___imp_function | |
2187 | .global __imp__function | |
775cabad | 2188 | _function: |
6c19b93b | 2189 | jmp *__imp__function: |
b7a26f91 | 2190 | |
6c19b93b AM |
2191 | .section idata$7 |
2192 | .long __head_my_dll | |
b7a26f91 | 2193 | |
6c19b93b | 2194 | .section .idata$5 |
775cabad NC |
2195 | ___imp_function: |
2196 | __imp__function: | |
2197 | iat? | |
6c19b93b | 2198 | .section .idata$4 |
775cabad | 2199 | iat? |
6c19b93b | 2200 | .section .idata$6 |
775cabad | 2201 | ID<ordinal>: |
6c19b93b AM |
2202 | .short <hint> |
2203 | .asciz "function" xlate? (add underscore, kill at) */ | |
775cabad | 2204 | |
e916811a | 2205 | static const unsigned char jmp_ix86_bytes[] = |
775cabad | 2206 | { |
252b5132 RH |
2207 | 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, 0x90, 0x90 |
2208 | }; | |
2209 | ||
775cabad | 2210 | /* _function: |
6c19b93b AM |
2211 | mov.l ip+8,r0 |
2212 | mov.l @r0,r0 | |
2213 | jmp @r0 | |
2214 | nop | |
2215 | .dw __imp_function */ | |
344a211f | 2216 | |
e916811a | 2217 | static const unsigned char jmp_sh_bytes[] = |
775cabad | 2218 | { |
344a211f NC |
2219 | 0x01, 0xd0, 0x02, 0x60, 0x2b, 0x40, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00 |
2220 | }; | |
2221 | ||
775cabad | 2222 | /* _function: |
6c19b93b AM |
2223 | lui $t0,<high:__imp_function> |
2224 | lw $t0,<low:__imp_function> | |
2225 | jr $t0 | |
2226 | nop */ | |
344a211f | 2227 | |
e916811a | 2228 | static const unsigned char jmp_mips_bytes[] = |
775cabad | 2229 | { |
344a211f NC |
2230 | 0x00, 0x00, 0x08, 0x3c, 0x00, 0x00, 0x08, 0x8d, |
2231 | 0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 | |
2232 | }; | |
252b5132 | 2233 | |
e916811a | 2234 | static const unsigned char jmp_arm_bytes[] = |
53baae48 NC |
2235 | { |
2236 | 0x00, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */ | |
2237 | 0x00, 0xf0, 0x9c, 0xe5, /* ldr pc, [ip] */ | |
2238 | 0, 0, 0, 0 | |
2239 | }; | |
2240 | ||
2241 | ||
252b5132 | 2242 | static bfd * |
54727719 | 2243 | make_one (def_file_export *exp, bfd *parent, bfd_boolean include_jmp_stub) |
252b5132 RH |
2244 | { |
2245 | asection *tx, *id7, *id5, *id4, *id6; | |
23a87948 | 2246 | unsigned char *td = NULL, *d7, *d5, *d4, *d6 = NULL; |
252b5132 RH |
2247 | int len; |
2248 | char *oname; | |
2249 | bfd *abfd; | |
e916811a | 2250 | const unsigned char *jmp_bytes = NULL; |
f0c87f88 | 2251 | int jmp_byte_count = 0; |
c6c37250 | 2252 | |
54727719 NC |
2253 | /* Include the jump stub section only if it is needed. A jump |
2254 | stub is needed if the symbol being imported <sym> is a function | |
2255 | symbol and there is at least one undefined reference to that | |
2256 | symbol. In other words, if all the import references to <sym> are | |
2257 | explicitly through _declspec(dllimport) then the jump stub is not | |
2258 | needed. */ | |
2259 | if (include_jmp_stub) | |
c6c37250 | 2260 | { |
54727719 NC |
2261 | switch (pe_details->pe_arch) |
2262 | { | |
2263 | case PE_ARCH_i386: | |
2264 | jmp_bytes = jmp_ix86_bytes; | |
2265 | jmp_byte_count = sizeof (jmp_ix86_bytes); | |
2266 | break; | |
2267 | case PE_ARCH_sh: | |
2268 | jmp_bytes = jmp_sh_bytes; | |
2269 | jmp_byte_count = sizeof (jmp_sh_bytes); | |
2270 | break; | |
2271 | case PE_ARCH_mips: | |
2272 | jmp_bytes = jmp_mips_bytes; | |
2273 | jmp_byte_count = sizeof (jmp_mips_bytes); | |
2274 | break; | |
2275 | case PE_ARCH_arm: | |
54727719 NC |
2276 | case PE_ARCH_arm_wince: |
2277 | jmp_bytes = jmp_arm_bytes; | |
2278 | jmp_byte_count = sizeof (jmp_arm_bytes); | |
2279 | break; | |
2280 | default: | |
2281 | abort (); | |
2282 | } | |
c6c37250 | 2283 | } |
252b5132 | 2284 | |
1579bae1 | 2285 | oname = xmalloc (20); |
252b5132 RH |
2286 | sprintf (oname, "d%06d.o", tmp_seq); |
2287 | tmp_seq++; | |
2288 | ||
2289 | abfd = bfd_create (oname, parent); | |
c6c37250 | 2290 | bfd_find_target (pe_details->object_target, abfd); |
252b5132 RH |
2291 | bfd_make_writable (abfd); |
2292 | ||
2293 | bfd_set_format (abfd, bfd_object); | |
c6c37250 | 2294 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); |
252b5132 RH |
2295 | |
2296 | symptr = 0; | |
17299ac7 NC |
2297 | symtab = xmalloc (12 * sizeof (asymbol *)); |
2298 | ||
2299 | tx = quick_section (abfd, ".text", SEC_CODE | SEC_HAS_CONTENTS | SEC_READONLY, 2); | |
252b5132 RH |
2300 | id7 = quick_section (abfd, ".idata$7", SEC_HAS_CONTENTS, 2); |
2301 | id5 = quick_section (abfd, ".idata$5", SEC_HAS_CONTENTS, 2); | |
2302 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); | |
2303 | id6 = quick_section (abfd, ".idata$6", SEC_HAS_CONTENTS, 2); | |
b34976b6 | 2304 | |
c9e38879 NC |
2305 | if (*exp->internal_name == '@') |
2306 | { | |
1579bae1 AM |
2307 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2308 | BSF_GLOBAL, 0); | |
54727719 | 2309 | if (include_jmp_stub) |
4b7f0676 | 2310 | quick_symbol (abfd, "", exp->internal_name, "", tx, BSF_GLOBAL, 0); |
00479ba8 | 2311 | quick_symbol (abfd, "__imp_", exp->internal_name, "", id5, |
1579bae1 | 2312 | BSF_GLOBAL, 0); |
c9e38879 NC |
2313 | /* Fastcall applies only to functions, |
2314 | so no need for auto-import symbol. */ | |
2315 | } | |
2316 | else | |
2317 | { | |
4b7f0676 NC |
2318 | quick_symbol (abfd, U ("_head_"), dll_symname, "", UNDSEC, |
2319 | BSF_GLOBAL, 0); | |
54727719 | 2320 | if (include_jmp_stub) |
1579bae1 AM |
2321 | quick_symbol (abfd, U (""), exp->internal_name, "", tx, |
2322 | BSF_GLOBAL, 0); | |
00479ba8 | 2323 | quick_symbol (abfd, "__imp_", U (""), exp->internal_name, id5, |
1579bae1 | 2324 | BSF_GLOBAL, 0); |
c9e38879 | 2325 | /* Symbol to reference ord/name of imported |
1579bae1 | 2326 | data symbol, used to implement auto-import. */ |
c9e38879 | 2327 | if (exp->flag_data) |
17f73277 | 2328 | quick_symbol (abfd, "__nm_", U (""), exp->internal_name, id6, |
1579bae1 | 2329 | BSF_GLOBAL,0); |
c9e38879 | 2330 | } |
870df5dc | 2331 | if (pe_dll_compat_implib) |
17f73277 | 2332 | quick_symbol (abfd, "___imp_", exp->internal_name, "", id5, |
1579bae1 | 2333 | BSF_GLOBAL, 0); |
252b5132 | 2334 | |
54727719 | 2335 | if (include_jmp_stub) |
775cabad NC |
2336 | { |
2337 | bfd_set_section_size (abfd, tx, jmp_byte_count); | |
1579bae1 | 2338 | td = xmalloc (jmp_byte_count); |
775cabad NC |
2339 | tx->contents = td; |
2340 | memcpy (td, jmp_bytes, jmp_byte_count); | |
2341 | ||
2342 | switch (pe_details->pe_arch) | |
2343 | { | |
2344 | case PE_ARCH_i386: | |
591a748a NC |
2345 | #ifdef pe_use_x86_64 |
2346 | quick_reloc (abfd, 2, BFD_RELOC_32_PCREL, 2); | |
2347 | #else | |
17299ac7 NC |
2348 | /* Mark this object as SAFESEH compatible. */ |
2349 | quick_symbol (abfd, "", "@feat.00", "", bfd_abs_section_ptr, | |
2350 | BSF_LOCAL, 1); | |
6c19b93b | 2351 | quick_reloc (abfd, 2, BFD_RELOC_32, 2); |
591a748a | 2352 | #endif |
775cabad NC |
2353 | break; |
2354 | case PE_ARCH_sh: | |
2355 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); | |
2356 | break; | |
2357 | case PE_ARCH_mips: | |
2358 | quick_reloc (abfd, 0, BFD_RELOC_HI16_S, 2); | |
2359 | quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ | |
2360 | quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); | |
2361 | break; | |
53baae48 | 2362 | case PE_ARCH_arm: |
6c19b93b | 2363 | case PE_ARCH_arm_wince: |
53baae48 NC |
2364 | quick_reloc (abfd, 8, BFD_RELOC_32, 2); |
2365 | break; | |
775cabad NC |
2366 | default: |
2367 | abort (); | |
2368 | } | |
2369 | save_relocs (tx); | |
2370 | } | |
54727719 NC |
2371 | else |
2372 | bfd_set_section_size (abfd, tx, 0); | |
252b5132 RH |
2373 | |
2374 | bfd_set_section_size (abfd, id7, 4); | |
1579bae1 | 2375 | d7 = xmalloc (4); |
252b5132 RH |
2376 | id7->contents = d7; |
2377 | memset (d7, 0, 4); | |
4b7f0676 | 2378 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 5); |
252b5132 RH |
2379 | save_relocs (id7); |
2380 | ||
99ad8390 NC |
2381 | bfd_set_section_size (abfd, id5, PE_IDATA5_SIZE); |
2382 | d5 = xmalloc (PE_IDATA5_SIZE); | |
252b5132 | 2383 | id5->contents = d5; |
99ad8390 | 2384 | memset (d5, 0, PE_IDATA5_SIZE); |
775cabad | 2385 | |
252b5132 RH |
2386 | if (exp->flag_noname) |
2387 | { | |
2388 | d5[0] = exp->ordinal; | |
2389 | d5[1] = exp->ordinal >> 8; | |
99ad8390 | 2390 | d5[PE_IDATA5_SIZE - 1] = 0x80; |
252b5132 RH |
2391 | } |
2392 | else | |
2393 | { | |
2394 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2395 | save_relocs (id5); | |
2396 | } | |
2397 | ||
99ad8390 NC |
2398 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE); |
2399 | d4 = xmalloc (PE_IDATA4_SIZE); | |
252b5132 | 2400 | id4->contents = d4; |
99ad8390 | 2401 | memset (d4, 0, PE_IDATA4_SIZE); |
775cabad | 2402 | |
252b5132 RH |
2403 | if (exp->flag_noname) |
2404 | { | |
c2a94a7a DD |
2405 | d4[0] = exp->ordinal; |
2406 | d4[1] = exp->ordinal >> 8; | |
99ad8390 | 2407 | d4[PE_IDATA4_SIZE - 1] = 0x80; |
252b5132 RH |
2408 | } |
2409 | else | |
2410 | { | |
2411 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 4); | |
2412 | save_relocs (id4); | |
2413 | } | |
2414 | ||
2415 | if (exp->flag_noname) | |
2416 | { | |
2417 | len = 0; | |
2418 | bfd_set_section_size (abfd, id6, 0); | |
2419 | } | |
2420 | else | |
2421 | { | |
4ee1d7e4 R |
2422 | int ord; |
2423 | ||
e916811a | 2424 | /* { short, asciz } */ |
7fcab871 KT |
2425 | if (exp->its_name) |
2426 | len = 2 + strlen (exp->its_name) + 1; | |
2427 | else | |
2428 | len = 2 + strlen (exp->name) + 1; | |
252b5132 RH |
2429 | if (len & 1) |
2430 | len++; | |
2431 | bfd_set_section_size (abfd, id6, len); | |
1579bae1 | 2432 | d6 = xmalloc (len); |
252b5132 RH |
2433 | id6->contents = d6; |
2434 | memset (d6, 0, len); | |
4ee1d7e4 R |
2435 | |
2436 | /* PR 20880: Use exp->hint as a backup, just in case exp->ordinal | |
2437 | contains an invalid value (-1). */ | |
2438 | ord = (exp->ordinal >= 0) ? exp->ordinal : exp->hint; | |
2439 | d6[0] = ord; | |
2440 | d6[1] = ord >> 8; | |
2441 | ||
7fcab871 KT |
2442 | if (exp->its_name) |
2443 | strcpy ((char*) d6 + 2, exp->its_name); | |
2444 | else | |
2445 | strcpy ((char *) d6 + 2, exp->name); | |
252b5132 RH |
2446 | } |
2447 | ||
2448 | bfd_set_symtab (abfd, symtab, symptr); | |
2449 | ||
54727719 NC |
2450 | if (include_jmp_stub) |
2451 | bfd_set_section_contents (abfd, tx, td, 0, jmp_byte_count); | |
252b5132 | 2452 | bfd_set_section_contents (abfd, id7, d7, 0, 4); |
99ad8390 NC |
2453 | bfd_set_section_contents (abfd, id5, d5, 0, PE_IDATA5_SIZE); |
2454 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE); | |
252b5132 RH |
2455 | if (!exp->flag_noname) |
2456 | bfd_set_section_contents (abfd, id6, d6, 0, len); | |
2457 | ||
2458 | bfd_make_readable (abfd); | |
2459 | return abfd; | |
2460 | } | |
2461 | ||
b044cda1 | 2462 | static bfd * |
1579bae1 | 2463 | make_singleton_name_thunk (const char *import, bfd *parent) |
b044cda1 | 2464 | { |
775cabad | 2465 | /* Name thunks go to idata$4. */ |
b044cda1 CW |
2466 | asection *id4; |
2467 | unsigned char *d4; | |
2468 | char *oname; | |
2469 | bfd *abfd; | |
2470 | ||
1579bae1 | 2471 | oname = xmalloc (20); |
b044cda1 CW |
2472 | sprintf (oname, "nmth%06d.o", tmp_seq); |
2473 | tmp_seq++; | |
2474 | ||
2475 | abfd = bfd_create (oname, parent); | |
2476 | bfd_find_target (pe_details->object_target, abfd); | |
2477 | bfd_make_writable (abfd); | |
2478 | ||
2479 | bfd_set_format (abfd, bfd_object); | |
2480 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2481 | ||
2482 | symptr = 0; | |
1579bae1 | 2483 | symtab = xmalloc (3 * sizeof (asymbol *)); |
b044cda1 | 2484 | id4 = quick_section (abfd, ".idata$4", SEC_HAS_CONTENTS, 2); |
17f73277 KT |
2485 | quick_symbol (abfd, "__nm_thnk_", import, "", id4, BSF_GLOBAL, 0); |
2486 | quick_symbol (abfd, "__nm_", import, "", UNDSEC, BSF_GLOBAL, 0); | |
b044cda1 | 2487 | |
4e986257 CF |
2488 | /* We need space for the real thunk and for the null terminator. */ |
2489 | bfd_set_section_size (abfd, id4, PE_IDATA4_SIZE * 2); | |
2490 | d4 = xmalloc (PE_IDATA4_SIZE * 2); | |
b044cda1 | 2491 | id4->contents = d4; |
4e986257 | 2492 | memset (d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2493 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 2); |
2494 | save_relocs (id4); | |
2495 | ||
2496 | bfd_set_symtab (abfd, symtab, symptr); | |
2497 | ||
4e986257 | 2498 | bfd_set_section_contents (abfd, id4, d4, 0, PE_IDATA4_SIZE * 2); |
b044cda1 CW |
2499 | |
2500 | bfd_make_readable (abfd); | |
2501 | return abfd; | |
2502 | } | |
2503 | ||
317ff008 | 2504 | static const char * |
fbea1508 | 2505 | make_import_fixup_mark (arelent *rel, char *name) |
b044cda1 | 2506 | { |
775cabad | 2507 | /* We convert reloc to symbol, for later reference. */ |
fbea1508 | 2508 | static unsigned int counter; |
fc0a2244 | 2509 | struct bfd_symbol *sym = *rel->sym_ptr_ptr; |
b044cda1 | 2510 | bfd *abfd = bfd_asymbol_bfd (sym); |
fe213ce2 | 2511 | struct bfd_link_hash_entry *bh; |
fbea1508 AM |
2512 | char *fixup_name, buf[26]; |
2513 | size_t prefix_len; | |
b044cda1 | 2514 | |
fbea1508 AM |
2515 | /* "name" buffer has space before the symbol name for prefixes. */ |
2516 | sprintf (buf, "__fu%d_", counter++); | |
2517 | prefix_len = strlen (buf); | |
2518 | fixup_name = name - prefix_len; | |
2519 | memcpy (fixup_name, buf, prefix_len); | |
b044cda1 | 2520 | |
fe213ce2 | 2521 | bh = NULL; |
b7a26f91 | 2522 | bfd_coff_link_add_one_symbol (&link_info, abfd, fixup_name, BSF_GLOBAL, |
b044cda1 | 2523 | current_sec, /* sym->section, */ |
b34976b6 | 2524 | rel->address, NULL, TRUE, FALSE, &bh); |
fe213ce2 | 2525 | |
317ff008 | 2526 | return bh->root.string; |
b044cda1 CW |
2527 | } |
2528 | ||
53baae48 | 2529 | /* .section .idata$2 |
6c19b93b AM |
2530 | .rva __nm_thnk_SYM (singleton thunk with name of func) |
2531 | .long 0 | |
2532 | .long 0 | |
2533 | .rva __my_dll_iname (name of dll) | |
2534 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
b044cda1 CW |
2535 | |
2536 | static bfd * | |
1579bae1 AM |
2537 | make_import_fixup_entry (const char *name, |
2538 | const char *fixup_name, | |
91d6fa6a | 2539 | const char *symname, |
1579bae1 | 2540 | bfd *parent) |
b044cda1 | 2541 | { |
53baae48 NC |
2542 | asection *id2; |
2543 | unsigned char *d2; | |
b044cda1 CW |
2544 | char *oname; |
2545 | bfd *abfd; | |
2546 | ||
1579bae1 | 2547 | oname = xmalloc (20); |
b044cda1 CW |
2548 | sprintf (oname, "fu%06d.o", tmp_seq); |
2549 | tmp_seq++; | |
2550 | ||
2551 | abfd = bfd_create (oname, parent); | |
2552 | bfd_find_target (pe_details->object_target, abfd); | |
2553 | bfd_make_writable (abfd); | |
2554 | ||
2555 | bfd_set_format (abfd, bfd_object); | |
2556 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2557 | ||
2558 | symptr = 0; | |
1579bae1 | 2559 | symtab = xmalloc (6 * sizeof (asymbol *)); |
53baae48 | 2560 | id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
775cabad | 2561 | |
17f73277 | 2562 | quick_symbol (abfd, "__nm_thnk_", name, "", UNDSEC, BSF_GLOBAL, 0); |
91d6fa6a | 2563 | quick_symbol (abfd, U (""), symname, "_iname", UNDSEC, BSF_GLOBAL, 0); |
317ff008 | 2564 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); |
b044cda1 | 2565 | |
53baae48 NC |
2566 | bfd_set_section_size (abfd, id2, 20); |
2567 | d2 = xmalloc (20); | |
2568 | id2->contents = d2; | |
2569 | memset (d2, 0, 20); | |
b044cda1 CW |
2570 | |
2571 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2572 | quick_reloc (abfd, 12, BFD_RELOC_RVA, 2); | |
2573 | quick_reloc (abfd, 16, BFD_RELOC_RVA, 3); | |
53baae48 | 2574 | save_relocs (id2); |
b044cda1 CW |
2575 | |
2576 | bfd_set_symtab (abfd, symtab, symptr); | |
2577 | ||
53baae48 | 2578 | bfd_set_section_contents (abfd, id2, d2, 0, 20); |
b044cda1 CW |
2579 | |
2580 | bfd_make_readable (abfd); | |
2581 | return abfd; | |
2582 | } | |
2583 | ||
2fa9fc65 | 2584 | /* .section .rdata_runtime_pseudo_reloc |
6c19b93b AM |
2585 | .long addend |
2586 | .rva __fuNN_SYM (pointer to reference (address) in text) */ | |
2fa9fc65 NC |
2587 | |
2588 | static bfd * | |
1579bae1 AM |
2589 | make_runtime_pseudo_reloc (const char *name ATTRIBUTE_UNUSED, |
2590 | const char *fixup_name, | |
6cb442d3 KT |
2591 | bfd_vma addend ATTRIBUTE_UNUSED, |
2592 | bfd_vma bitsize, | |
1579bae1 | 2593 | bfd *parent) |
2fa9fc65 NC |
2594 | { |
2595 | asection *rt_rel; | |
2596 | unsigned char *rt_rel_d; | |
2597 | char *oname; | |
2598 | bfd *abfd; | |
317ff008 EB |
2599 | bfd_size_type size; |
2600 | ||
1579bae1 | 2601 | oname = xmalloc (20); |
2fa9fc65 NC |
2602 | sprintf (oname, "rtr%06d.o", tmp_seq); |
2603 | tmp_seq++; | |
2604 | ||
2605 | abfd = bfd_create (oname, parent); | |
2606 | bfd_find_target (pe_details->object_target, abfd); | |
2607 | bfd_make_writable (abfd); | |
2608 | ||
2609 | bfd_set_format (abfd, bfd_object); | |
2610 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2611 | ||
acac4c69 KT |
2612 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2613 | { | |
317ff008 EB |
2614 | if (runtime_pseudp_reloc_v2_init) |
2615 | size = 3 * sizeof (asymbol *); | |
2616 | else | |
2617 | size = 6 * sizeof (asymbol *); | |
acac4c69 KT |
2618 | } |
2619 | else | |
317ff008 EB |
2620 | size = 2 * sizeof (asymbol *); |
2621 | ||
2622 | symptr = 0; | |
2623 | symtab = xmalloc (size); | |
2624 | ||
2625 | rt_rel | |
2626 | = quick_section (abfd, ".rdata_runtime_pseudo_reloc", SEC_HAS_CONTENTS, 2); | |
2fa9fc65 NC |
2627 | |
2628 | quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); | |
2629 | ||
6cb442d3 KT |
2630 | if (link_info.pei386_runtime_pseudo_reloc == 2) |
2631 | { | |
317ff008 EB |
2632 | size = 12; |
2633 | if (!runtime_pseudp_reloc_v2_init) | |
2634 | { | |
2635 | size += 12; | |
2636 | runtime_pseudp_reloc_v2_init = TRUE; | |
2637 | } | |
2638 | ||
17f73277 | 2639 | quick_symbol (abfd, "__imp_", name, "", UNDSEC, BSF_GLOBAL, 0); |
6cb442d3 KT |
2640 | |
2641 | bfd_set_section_size (abfd, rt_rel, size); | |
2642 | rt_rel_d = xmalloc (size); | |
2643 | rt_rel->contents = rt_rel_d; | |
2644 | memset (rt_rel_d, 0, size); | |
317ff008 EB |
2645 | quick_reloc (abfd, size - 8, BFD_RELOC_RVA, 1); |
2646 | quick_reloc (abfd, size - 12, BFD_RELOC_RVA, 2); | |
2647 | bfd_put_32 (abfd, bitsize, rt_rel_d + (size - 4)); | |
2648 | if (size != 12) | |
2649 | bfd_put_32 (abfd, 1, rt_rel_d + 8); | |
6cb442d3 KT |
2650 | save_relocs (rt_rel); |
2651 | ||
2652 | bfd_set_symtab (abfd, symtab, symptr); | |
2653 | ||
2654 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, size); | |
317ff008 | 2655 | } |
6cb442d3 | 2656 | else |
317ff008 | 2657 | { |
6cb442d3 KT |
2658 | bfd_set_section_size (abfd, rt_rel, 8); |
2659 | rt_rel_d = xmalloc (8); | |
2660 | rt_rel->contents = rt_rel_d; | |
2661 | memset (rt_rel_d, 0, 8); | |
2fa9fc65 | 2662 | |
6cb442d3 KT |
2663 | bfd_put_32 (abfd, addend, rt_rel_d); |
2664 | quick_reloc (abfd, 4, BFD_RELOC_RVA, 1); | |
2fa9fc65 | 2665 | |
6cb442d3 | 2666 | save_relocs (rt_rel); |
2fa9fc65 | 2667 | |
6cb442d3 | 2668 | bfd_set_symtab (abfd, symtab, symptr); |
2fa9fc65 | 2669 | |
6cb442d3 KT |
2670 | bfd_set_section_contents (abfd, rt_rel, rt_rel_d, 0, 8); |
2671 | } | |
317ff008 | 2672 | |
2fa9fc65 NC |
2673 | bfd_make_readable (abfd); |
2674 | return abfd; | |
2675 | } | |
2676 | ||
2677 | /* .section .rdata | |
6c19b93b | 2678 | .rva __pei386_runtime_relocator */ |
2fa9fc65 NC |
2679 | |
2680 | static bfd * | |
1579bae1 | 2681 | pe_create_runtime_relocator_reference (bfd *parent) |
2fa9fc65 NC |
2682 | { |
2683 | asection *extern_rt_rel; | |
2684 | unsigned char *extern_rt_rel_d; | |
2685 | char *oname; | |
2686 | bfd *abfd; | |
2687 | ||
1579bae1 | 2688 | oname = xmalloc (20); |
2fa9fc65 NC |
2689 | sprintf (oname, "ertr%06d.o", tmp_seq); |
2690 | tmp_seq++; | |
2691 | ||
2692 | abfd = bfd_create (oname, parent); | |
2693 | bfd_find_target (pe_details->object_target, abfd); | |
2694 | bfd_make_writable (abfd); | |
2695 | ||
2696 | bfd_set_format (abfd, bfd_object); | |
2697 | bfd_set_arch_mach (abfd, pe_details->bfd_arch, 0); | |
2698 | ||
2699 | symptr = 0; | |
1579bae1 | 2700 | symtab = xmalloc (2 * sizeof (asymbol *)); |
2fa9fc65 NC |
2701 | extern_rt_rel = quick_section (abfd, ".rdata", SEC_HAS_CONTENTS, 2); |
2702 | ||
00479ba8 | 2703 | quick_symbol (abfd, "", U ("_pei386_runtime_relocator"), "", UNDSEC, |
1579bae1 | 2704 | BSF_NO_FLAGS, 0); |
2fa9fc65 | 2705 | |
9382254d | 2706 | bfd_set_section_size (abfd, extern_rt_rel, PE_IDATA5_SIZE); |
8d5c4b7b | 2707 | extern_rt_rel_d = xcalloc (1, PE_IDATA5_SIZE); |
2fa9fc65 NC |
2708 | extern_rt_rel->contents = extern_rt_rel_d; |
2709 | ||
2710 | quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); | |
2711 | save_relocs (extern_rt_rel); | |
2712 | ||
2713 | bfd_set_symtab (abfd, symtab, symptr); | |
2714 | ||
9382254d | 2715 | bfd_set_section_contents (abfd, extern_rt_rel, extern_rt_rel_d, 0, PE_IDATA5_SIZE); |
2fa9fc65 NC |
2716 | |
2717 | bfd_make_readable (abfd); | |
2718 | return abfd; | |
2719 | } | |
2720 | ||
b044cda1 | 2721 | void |
317ff008 EB |
2722 | pe_create_import_fixup (arelent *rel, asection *s, bfd_vma addend, char *name, |
2723 | const char *symname) | |
b044cda1 | 2724 | { |
317ff008 | 2725 | const char *fixup_name = make_import_fixup_mark (rel, name); |
2fa9fc65 | 2726 | bfd *b; |
b044cda1 | 2727 | |
317ff008 EB |
2728 | /* This is the original implementation of the auto-import feature, which |
2729 | primarily relied on the OS loader to patch things up with some help | |
2730 | from the pseudo-relocator to overcome the main limitation. See the | |
2731 | comment at the beginning of the file for an overview of the feature. */ | |
2732 | if (link_info.pei386_runtime_pseudo_reloc != 2) | |
b044cda1 | 2733 | { |
317ff008 EB |
2734 | struct bfd_link_hash_entry *name_thunk_sym; |
2735 | /* name buffer is allocated with space at beginning for prefixes. */ | |
2736 | char *thname = name - (sizeof "__nm_thnk_" - 1); | |
2737 | memcpy (thname, "__nm_thnk_", sizeof "__nm_thnk_" - 1); | |
2738 | name_thunk_sym = bfd_link_hash_lookup (link_info.hash, thname, 0, 0, 1); | |
b044cda1 | 2739 | |
317ff008 | 2740 | if (!(name_thunk_sym && name_thunk_sym->type == bfd_link_hash_defined)) |
6c19b93b | 2741 | { |
317ff008 EB |
2742 | b = make_singleton_name_thunk (name, link_info.output_bfd); |
2743 | add_bfd_to_link (b, b->filename, &link_info); | |
2744 | ||
2745 | /* If we ever use autoimport, we have to cast text section writable. */ | |
6c19b93b AM |
2746 | config.text_read_only = FALSE; |
2747 | link_info.output_bfd->flags &= ~WP_TEXT; | |
2748 | } | |
317ff008 EB |
2749 | |
2750 | if (addend == 0 || link_info.pei386_runtime_pseudo_reloc == 1) | |
6c19b93b | 2751 | { |
317ff008 EB |
2752 | b = make_import_fixup_entry (name, fixup_name, symname, |
2753 | link_info.output_bfd); | |
6c19b93b | 2754 | add_bfd_to_link (b, b->filename, &link_info); |
9382254d | 2755 | } |
b044cda1 CW |
2756 | } |
2757 | ||
317ff008 EB |
2758 | /* In the original implementation, the pseudo-relocator was only used when |
2759 | the addend was not null. In the new implementation, the OS loader is | |
2760 | completely bypassed and the pseudo-relocator does the entire work. */ | |
2761 | if ((addend != 0 && link_info.pei386_runtime_pseudo_reloc == 1) | |
6c19b93b AM |
2762 | || link_info.pei386_runtime_pseudo_reloc == 2) |
2763 | { | |
2764 | if (pe_dll_extra_pe_debug) | |
2765 | printf ("creating runtime pseudo-reloc entry for %s (addend=%d)\n", | |
2766 | fixup_name, (int) addend); | |
6cb442d3 | 2767 | |
6c19b93b AM |
2768 | b = make_runtime_pseudo_reloc (name, fixup_name, addend, rel->howto->bitsize, |
2769 | link_info.output_bfd); | |
2770 | add_bfd_to_link (b, b->filename, &link_info); | |
6cb442d3 | 2771 | |
317ff008 | 2772 | if (runtime_pseudo_relocs_created++ == 0) |
6c19b93b AM |
2773 | { |
2774 | b = pe_create_runtime_relocator_reference (link_info.output_bfd); | |
2775 | add_bfd_to_link (b, b->filename, &link_info); | |
2776 | } | |
6c19b93b | 2777 | } |
317ff008 | 2778 | |
6c19b93b | 2779 | else if (addend != 0) |
df5f2391 | 2780 | einfo (_("%X%P: %C: variable '%pT' can't be auto-imported; please read the documentation for ld's --enable-auto-import for details\n"), |
317ff008 | 2781 | s->owner, s, rel->address, (*rel->sym_ptr_ptr)->name); |
b044cda1 CW |
2782 | } |
2783 | ||
252b5132 | 2784 | void |
e1c37eb5 | 2785 | pe_dll_generate_implib (def_file *def, const char *impfilename, struct bfd_link_info *info) |
252b5132 RH |
2786 | { |
2787 | int i; | |
2788 | bfd *ar_head; | |
2789 | bfd *ar_tail; | |
2790 | bfd *outarch; | |
e1c37eb5 | 2791 | bfd *ibfd; |
252b5132 RH |
2792 | bfd *head = 0; |
2793 | ||
5aaace27 | 2794 | dll_filename = (def->name) ? def->name : dll_name; |
252b5132 | 2795 | dll_symname = xstrdup (dll_filename); |
d643799d | 2796 | for (i = 0; dll_symname[i]; i++) |
3882b010 | 2797 | if (!ISALNUM (dll_symname[i])) |
252b5132 RH |
2798 | dll_symname[i] = '_'; |
2799 | ||
bb14f524 | 2800 | unlink_if_ordinary (impfilename); |
252b5132 RH |
2801 | |
2802 | outarch = bfd_openw (impfilename, 0); | |
2803 | ||
2804 | if (!outarch) | |
2805 | { | |
2806 | /* xgettext:c-format */ | |
df5f2391 | 2807 | einfo (_("%X%P: can't open .lib file: %s\n"), impfilename); |
252b5132 RH |
2808 | return; |
2809 | } | |
2810 | ||
cd6f1cf3 NC |
2811 | if (verbose) |
2812 | /* xgettext:c-format */ | |
2813 | info_msg (_("Creating library file: %s\n"), impfilename); | |
9382254d | 2814 | |
252b5132 RH |
2815 | bfd_set_format (outarch, bfd_archive); |
2816 | outarch->has_armap = 1; | |
2817 | ||
5cc18311 | 2818 | /* Work out a reasonable size of things to put onto one line. */ |
252b5132 | 2819 | ar_head = make_head (outarch); |
252b5132 | 2820 | |
e1c37eb5 | 2821 | /* Iterate the input BFDs, looking for exclude-modules-for-implib. */ |
c72f2fb2 | 2822 | for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next) |
e1c37eb5 DK |
2823 | { |
2824 | /* Iterate the exclude list. */ | |
2825 | struct exclude_list_struct *ex; | |
2826 | char found; | |
2827 | for (ex = excludes, found = 0; ex && !found; ex = ex->next) | |
2828 | { | |
2829 | if (ex->type != EXCLUDEFORIMPLIB) | |
2830 | continue; | |
42627821 | 2831 | found = (filename_cmp (ex->string, ibfd->filename) == 0); |
e1c37eb5 DK |
2832 | } |
2833 | /* If it matched, we must open a fresh BFD for it (the original | |
6c19b93b AM |
2834 | input BFD is still needed for the DLL's final link) and add |
2835 | it into the archive member chain. */ | |
e1c37eb5 DK |
2836 | if (found) |
2837 | { | |
9382254d | 2838 | bfd *newbfd = bfd_openr (ibfd->my_archive |
e1c37eb5 DK |
2839 | ? ibfd->my_archive->filename : ibfd->filename, NULL); |
2840 | if (!newbfd) | |
2841 | { | |
df5f2391 | 2842 | einfo (_("%X%P: bfd_openr %s: %E\n"), ibfd->filename); |
e1c37eb5 DK |
2843 | return; |
2844 | } | |
2845 | if (ibfd->my_archive) | |
2846 | { | |
2847 | /* Must now iterate through archive until we find the | |
2848 | required member. A minor shame that we'll open the | |
2849 | archive once per member that we require from it, and | |
2850 | leak those archive bfds rather than reuse them. */ | |
2851 | bfd *arbfd = newbfd; | |
2852 | if (!bfd_check_format_matches (arbfd, bfd_archive, NULL)) | |
2853 | { | |
df5f2391 | 2854 | einfo (_("%X%P: %s(%s): can't find member in non-archive file"), |
e1c37eb5 DK |
2855 | ibfd->my_archive->filename, ibfd->filename); |
2856 | return; | |
2857 | } | |
2858 | newbfd = NULL; | |
2859 | while ((newbfd = bfd_openr_next_archived_file (arbfd, newbfd)) != 0) | |
2860 | { | |
42627821 | 2861 | if (filename_cmp (newbfd->filename, ibfd->filename) == 0) |
e1c37eb5 DK |
2862 | break; |
2863 | } | |
2864 | if (!newbfd) | |
2865 | { | |
df5f2391 | 2866 | einfo (_("%X%P: %s(%s): can't find member in archive"), |
e1c37eb5 DK |
2867 | ibfd->my_archive->filename, ibfd->filename); |
2868 | return; | |
2869 | } | |
2870 | } | |
2871 | newbfd->archive_next = head; | |
2872 | head = newbfd; | |
2873 | } | |
2874 | } | |
2875 | ||
d643799d | 2876 | for (i = 0; i < def->num_exports; i++) |
252b5132 | 2877 | { |
86b1cc60 | 2878 | /* The import library doesn't know about the internal name. */ |
252b5132 RH |
2879 | char *internal = def->exports[i].internal_name; |
2880 | bfd *n; | |
775cabad | 2881 | |
9382254d | 2882 | /* Don't add PRIVATE entries to import lib. */ |
ee31fbd0 NC |
2883 | if (pe_def_file->exports[i].flag_private) |
2884 | continue; | |
41f46ed9 | 2885 | |
252b5132 | 2886 | def->exports[i].internal_name = def->exports[i].name; |
41f46ed9 SKS |
2887 | |
2888 | /* PR 19803: If a symbol has been discard due to garbage | |
2889 | collection then do not create any exports for it. */ | |
2890 | { | |
2891 | struct coff_link_hash_entry *h; | |
2892 | ||
2893 | h = coff_link_hash_lookup (coff_hash_table (info), internal, | |
2894 | FALSE, FALSE, FALSE); | |
2895 | if (h != NULL | |
2896 | /* If the symbol is hidden and undefined then it | |
2897 | has been swept up by garbage collection. */ | |
2898 | && h->symbol_class == C_HIDDEN | |
2899 | && h->root.u.def.section == bfd_und_section_ptr) | |
2900 | continue; | |
2901 | ||
2902 | /* If necessary, check with an underscore prefix as well. */ | |
2903 | if (pe_details->underscored && internal[0] != '@') | |
2904 | { | |
2905 | char *name; | |
2906 | ||
2907 | name = xmalloc (strlen (internal) + 2); | |
2908 | sprintf (name, "_%s", internal); | |
2909 | ||
2910 | h = coff_link_hash_lookup (coff_hash_table (info), name, | |
2911 | FALSE, FALSE, FALSE); | |
2912 | free (name); | |
2913 | ||
2914 | if (h != NULL | |
2915 | /* If the symbol is hidden and undefined then it | |
2916 | has been swept up by garbage collection. */ | |
2917 | && h->symbol_class == C_HIDDEN | |
2918 | && h->root.u.def.section == bfd_und_section_ptr) | |
2919 | continue; | |
2920 | } | |
2921 | } | |
2922 | ||
54727719 NC |
2923 | n = make_one (def->exports + i, outarch, |
2924 | ! (def->exports + i)->flag_data); | |
cc481421 | 2925 | n->archive_next = head; |
252b5132 RH |
2926 | head = n; |
2927 | def->exports[i].internal_name = internal; | |
2928 | } | |
2929 | ||
c6c37250 DD |
2930 | ar_tail = make_tail (outarch); |
2931 | ||
2932 | if (ar_head == NULL || ar_tail == NULL) | |
2933 | return; | |
2934 | ||
86b1cc60 | 2935 | /* Now stick them all into the archive. */ |
cc481421 AM |
2936 | ar_head->archive_next = head; |
2937 | ar_tail->archive_next = ar_head; | |
252b5132 RH |
2938 | head = ar_tail; |
2939 | ||
2940 | if (! bfd_set_archive_head (outarch, head)) | |
df5f2391 | 2941 | einfo ("%X%P: bfd_set_archive_head: %E\n"); |
5cc18311 | 2942 | |
252b5132 | 2943 | if (! bfd_close (outarch)) |
df5f2391 | 2944 | einfo ("%X%P: bfd_close %s: %E\n", impfilename); |
252b5132 RH |
2945 | |
2946 | while (head != NULL) | |
2947 | { | |
cc481421 | 2948 | bfd *n = head->archive_next; |
252b5132 RH |
2949 | bfd_close (head); |
2950 | head = n; | |
2951 | } | |
2952 | } | |
2953 | ||
aeb1f0e8 KT |
2954 | static int undef_count = 0; |
2955 | ||
2956 | struct key_value | |
2957 | { | |
2958 | char *key; | |
2959 | const char *oname; | |
2960 | }; | |
2961 | ||
d66ac08f | 2962 | static struct key_value *udef_table; |
aeb1f0e8 KT |
2963 | |
2964 | static int undef_sort_cmp (const void *l1, const void *r1) | |
2965 | { | |
2966 | const struct key_value *l = l1; | |
2967 | const struct key_value *r = r1; | |
2968 | ||
2969 | return strcmp (l->key, r->key); | |
2970 | } | |
2971 | ||
2972 | static struct bfd_link_hash_entry * | |
2973 | pe_find_cdecl_alias_match (struct bfd_link_info *linfo, char *name) | |
2974 | { | |
2975 | struct bfd_link_hash_entry *h = NULL; | |
2976 | struct key_value *kv; | |
2977 | struct key_value key; | |
e1fa0163 | 2978 | char *at, *lname = xmalloc (strlen (name) + 3); |
e4492aa0 | 2979 | |
aeb1f0e8 KT |
2980 | strcpy (lname, name); |
2981 | ||
2982 | at = strchr (lname + (lname[0] == '@'), '@'); | |
2983 | if (at) | |
2984 | at[1] = 0; | |
2985 | ||
2986 | key.key = lname; | |
2987 | kv = bsearch (&key, udef_table, undef_count, sizeof (struct key_value), | |
2988 | undef_sort_cmp); | |
2989 | ||
2990 | if (kv) | |
2991 | { | |
2992 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
2993 | if (h->type == bfd_link_hash_undefined) | |
6c19b93b | 2994 | goto return_h; |
aeb1f0e8 | 2995 | } |
e1fa0163 | 2996 | |
aeb1f0e8 | 2997 | if (lname[0] == '?') |
e1fa0163 NC |
2998 | goto return_NULL; |
2999 | ||
aeb1f0e8 KT |
3000 | if (at || lname[0] == '@') |
3001 | { | |
3002 | if (lname[0] == '@') | |
6c19b93b | 3003 | { |
aeb1f0e8 KT |
3004 | if (pe_details->underscored) |
3005 | lname[0] = '_'; | |
3006 | else | |
3007 | strcpy (lname, lname + 1); | |
3008 | key.key = lname; | |
3009 | kv = bsearch (&key, udef_table, undef_count, | |
3010 | sizeof (struct key_value), undef_sort_cmp); | |
3011 | if (kv) | |
3012 | { | |
3013 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
3014 | if (h->type == bfd_link_hash_undefined) | |
e1fa0163 | 3015 | goto return_h; |
aeb1f0e8 KT |
3016 | } |
3017 | } | |
3018 | if (at) | |
6c19b93b | 3019 | *strchr (lname, '@') = 0; |
aeb1f0e8 KT |
3020 | key.key = lname; |
3021 | kv = bsearch (&key, udef_table, undef_count, | |
3022 | sizeof (struct key_value), undef_sort_cmp); | |
3023 | if (kv) | |
3024 | { | |
3025 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
3026 | if (h->type == bfd_link_hash_undefined) | |
e1fa0163 | 3027 | goto return_h; |
aeb1f0e8 | 3028 | } |
e1fa0163 | 3029 | goto return_NULL; |
aeb1f0e8 KT |
3030 | } |
3031 | ||
3032 | strcat (lname, "@"); | |
3033 | key.key = lname; | |
3034 | kv = bsearch (&key, udef_table, undef_count, | |
3035 | sizeof (struct key_value), undef_sort_cmp); | |
3036 | ||
3037 | if (kv) | |
3038 | { | |
3039 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
3040 | if (h->type == bfd_link_hash_undefined) | |
e1fa0163 | 3041 | goto return_h; |
aeb1f0e8 KT |
3042 | } |
3043 | ||
3044 | if (lname[0] == '_' && pe_details->underscored) | |
3045 | lname[0] = '@'; | |
3046 | else | |
3047 | { | |
3048 | memmove (lname + 1, lname, strlen (lname) + 1); | |
3049 | lname[0] = '@'; | |
3050 | } | |
3051 | key.key = lname; | |
3052 | ||
3053 | kv = bsearch (&key, udef_table, undef_count, | |
3054 | sizeof (struct key_value), undef_sort_cmp); | |
3055 | ||
3056 | if (kv) | |
3057 | { | |
3058 | h = bfd_link_hash_lookup (linfo->hash, kv->oname, FALSE, FALSE, FALSE); | |
3059 | if (h->type == bfd_link_hash_undefined) | |
6c19b93b | 3060 | goto return_h; |
aeb1f0e8 | 3061 | } |
e4492aa0 | 3062 | |
e1fa0163 NC |
3063 | return_NULL: |
3064 | h = NULL; | |
3065 | return_h: | |
3066 | free (lname); | |
3067 | return h; | |
aeb1f0e8 | 3068 | } |
8a9eab9b KT |
3069 | |
3070 | static bfd_boolean | |
aeb1f0e8 | 3071 | pe_undef_count (struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED, |
6c19b93b | 3072 | void *inf ATTRIBUTE_UNUSED) |
8a9eab9b | 3073 | { |
aeb1f0e8 KT |
3074 | if (h->type == bfd_link_hash_undefined) |
3075 | undef_count++; | |
3076 | return TRUE; | |
3077 | } | |
3078 | ||
3079 | static bfd_boolean | |
3080 | pe_undef_fill (struct bfd_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
3081 | { | |
3082 | if (h->type == bfd_link_hash_undefined) | |
8a9eab9b | 3083 | { |
aeb1f0e8 KT |
3084 | char *at; |
3085 | ||
3086 | udef_table[undef_count].key = xstrdup (h->root.string); | |
3087 | at = strchr (udef_table[undef_count].key | |
3088 | + (udef_table[undef_count].key[0] == '@'), '@'); | |
3089 | if (at) | |
6c19b93b | 3090 | at[1] = 0; |
aeb1f0e8 KT |
3091 | udef_table[undef_count].oname = h->root.string; |
3092 | undef_count++; | |
8a9eab9b KT |
3093 | } |
3094 | return TRUE; | |
3095 | } | |
3096 | ||
aeb1f0e8 KT |
3097 | static void |
3098 | pe_create_undef_table (void) | |
8a9eab9b | 3099 | { |
aeb1f0e8 KT |
3100 | undef_count = 0; |
3101 | ||
3102 | /* count undefined symbols */ | |
3103 | ||
3104 | bfd_link_hash_traverse (link_info.hash, pe_undef_count, ""); | |
3105 | ||
3106 | /* create and fill the corresponding table */ | |
3107 | udef_table = xmalloc (undef_count * sizeof (struct key_value)); | |
3108 | ||
3109 | undef_count = 0; | |
3110 | bfd_link_hash_traverse (link_info.hash, pe_undef_fill, ""); | |
3111 | ||
3112 | /* sort items */ | |
3113 | qsort (udef_table, undef_count, sizeof (struct key_value), undef_sort_cmp); | |
8a9eab9b KT |
3114 | } |
3115 | ||
252b5132 | 3116 | static void |
91d6fa6a | 3117 | add_bfd_to_link (bfd *abfd, const char *name, struct bfd_link_info *linfo) |
252b5132 RH |
3118 | { |
3119 | lang_input_statement_type *fake_file; | |
775cabad | 3120 | |
252b5132 RH |
3121 | fake_file = lang_add_input_file (name, |
3122 | lang_input_file_is_fake_enum, | |
3123 | NULL); | |
3124 | fake_file->the_bfd = abfd; | |
3125 | ldlang_add_file (fake_file); | |
775cabad | 3126 | |
91d6fa6a | 3127 | if (!bfd_link_add_symbols (abfd, linfo)) |
df5f2391 | 3128 | einfo (_("%X%P: add symbols %s: %E\n"), name); |
252b5132 RH |
3129 | } |
3130 | ||
3131 | void | |
91d6fa6a | 3132 | pe_process_import_defs (bfd *output_bfd, struct bfd_link_info *linfo) |
252b5132 | 3133 | { |
6e230cc2 | 3134 | int i, j; |
252b5132 | 3135 | def_file_module *module; |
6e230cc2 | 3136 | def_file_import *imp; |
775cabad | 3137 | |
d643799d | 3138 | pe_dll_id_target (bfd_get_target (output_bfd)); |
252b5132 RH |
3139 | |
3140 | if (!pe_def_file) | |
3141 | return; | |
3142 | ||
6e230cc2 KT |
3143 | imp = pe_def_file->imports; |
3144 | ||
aeb1f0e8 KT |
3145 | pe_create_undef_table (); |
3146 | ||
252b5132 RH |
3147 | for (module = pe_def_file->modules; module; module = module->next) |
3148 | { | |
6e230cc2 KT |
3149 | int do_this_dll = 0; |
3150 | ||
3151 | for (i = 0; i < pe_def_file->num_imports && imp[i].module != module; i++) | |
3152 | ; | |
3153 | if (i >= pe_def_file->num_imports) | |
6c19b93b | 3154 | continue; |
252b5132 RH |
3155 | |
3156 | dll_filename = module->name; | |
3157 | dll_symname = xstrdup (module->name); | |
6e230cc2 KT |
3158 | for (j = 0; dll_symname[j]; j++) |
3159 | if (!ISALNUM (dll_symname[j])) | |
3160 | dll_symname[j] = '_'; | |
3161 | ||
3162 | for (; i < pe_def_file->num_imports && imp[i].module == module; i++) | |
3163 | { | |
3164 | def_file_export exp; | |
3165 | struct bfd_link_hash_entry *blhe; | |
3166 | int lead_at = (*imp[i].internal_name == '@'); | |
3167 | /* See if we need this import. */ | |
3168 | size_t len = strlen (imp[i].internal_name); | |
3169 | char *name = xmalloc (len + 2 + 6); | |
3170 | bfd_boolean include_jmp_stub = FALSE; | |
3171 | bfd_boolean is_cdecl = FALSE; | |
aeb1f0e8 KT |
3172 | bfd_boolean is_undef = FALSE; |
3173 | ||
6e230cc2 KT |
3174 | if (!lead_at && strchr (imp[i].internal_name, '@') == NULL) |
3175 | is_cdecl = TRUE; | |
3176 | ||
3177 | if (lead_at) | |
3178 | sprintf (name, "%s", imp[i].internal_name); | |
3179 | else | |
3180 | sprintf (name, "%s%s",U (""), imp[i].internal_name); | |
252b5132 | 3181 | |
6e230cc2 KT |
3182 | blhe = bfd_link_hash_lookup (linfo->hash, name, |
3183 | FALSE, FALSE, FALSE); | |
252b5132 | 3184 | |
6e230cc2 KT |
3185 | /* Include the jump stub for <sym> only if the <sym> |
3186 | is undefined. */ | |
3187 | if (!blhe || (blhe && blhe->type != bfd_link_hash_undefined)) | |
3188 | { | |
3189 | if (lead_at) | |
3190 | sprintf (name, "%s%s", "__imp_", imp[i].internal_name); | |
3191 | else | |
3192 | sprintf (name, "%s%s%s", "__imp_", U (""), | |
3193 | imp[i].internal_name); | |
3194 | ||
3195 | blhe = bfd_link_hash_lookup (linfo->hash, name, | |
3196 | FALSE, FALSE, FALSE); | |
aeb1f0e8 | 3197 | if (blhe) |
6c19b93b | 3198 | is_undef = (blhe->type == bfd_link_hash_undefined); |
6e230cc2 KT |
3199 | } |
3200 | else | |
aeb1f0e8 KT |
3201 | { |
3202 | include_jmp_stub = TRUE; | |
3203 | is_undef = (blhe->type == bfd_link_hash_undefined); | |
3204 | } | |
6e230cc2 | 3205 | |
aeb1f0e8 | 3206 | if (is_cdecl && (!blhe || (blhe && blhe->type != bfd_link_hash_undefined))) |
6e230cc2 KT |
3207 | { |
3208 | sprintf (name, "%s%s",U (""), imp[i].internal_name); | |
aeb1f0e8 | 3209 | blhe = pe_find_cdecl_alias_match (linfo, name); |
54727719 | 3210 | include_jmp_stub = TRUE; |
aeb1f0e8 | 3211 | if (blhe) |
6c19b93b | 3212 | is_undef = (blhe->type == bfd_link_hash_undefined); |
6e230cc2 | 3213 | } |
54727719 | 3214 | |
6e230cc2 KT |
3215 | free (name); |
3216 | ||
aeb1f0e8 | 3217 | if (is_undef) |
6e230cc2 KT |
3218 | { |
3219 | bfd *one; | |
3220 | /* We do. */ | |
3221 | if (!do_this_dll) | |
3222 | { | |
3223 | bfd *ar_head = make_head (output_bfd); | |
3224 | add_bfd_to_link (ar_head, ar_head->filename, linfo); | |
3225 | do_this_dll = 1; | |
3226 | } | |
3227 | exp.internal_name = imp[i].internal_name; | |
3228 | exp.name = imp[i].name; | |
3229 | exp.its_name = imp[i].its_name; | |
3230 | exp.ordinal = imp[i].ordinal; | |
3231 | exp.hint = exp.ordinal >= 0 ? exp.ordinal : 0; | |
3232 | exp.flag_private = 0; | |
3233 | exp.flag_constant = 0; | |
3234 | exp.flag_data = imp[i].data; | |
3235 | exp.flag_noname = exp.name ? 0 : 1; | |
3236 | one = make_one (&exp, output_bfd, (! exp.flag_data) && include_jmp_stub); | |
3237 | add_bfd_to_link (one, one->filename, linfo); | |
3238 | } | |
3239 | } | |
252b5132 RH |
3240 | if (do_this_dll) |
3241 | { | |
3242 | bfd *ar_tail = make_tail (output_bfd); | |
91d6fa6a | 3243 | add_bfd_to_link (ar_tail, ar_tail->filename, linfo); |
252b5132 RH |
3244 | } |
3245 | ||
3246 | free (dll_symname); | |
3247 | } | |
aeb1f0e8 KT |
3248 | |
3249 | while (undef_count) | |
3250 | { | |
3251 | --undef_count; | |
3252 | free (udef_table[undef_count].key); | |
3253 | } | |
3254 | free (udef_table); | |
252b5132 RH |
3255 | } |
3256 | ||
775cabad | 3257 | /* We were handed a *.DLL file. Parse it and turn it into a set of |
b34976b6 AM |
3258 | IMPORTS directives in the def file. Return TRUE if the file was |
3259 | handled, FALSE if not. */ | |
252b5132 RH |
3260 | |
3261 | static unsigned int | |
1579bae1 | 3262 | pe_get16 (bfd *abfd, int where) |
252b5132 RH |
3263 | { |
3264 | unsigned char b[2]; | |
775cabad | 3265 | |
db09f25b AM |
3266 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
3267 | bfd_bread (b, (bfd_size_type) 2, abfd); | |
d643799d | 3268 | return b[0] + (b[1] << 8); |
252b5132 RH |
3269 | } |
3270 | ||
3271 | static unsigned int | |
1579bae1 | 3272 | pe_get32 (bfd *abfd, int where) |
252b5132 RH |
3273 | { |
3274 | unsigned char b[4]; | |
775cabad | 3275 | |
db09f25b AM |
3276 | bfd_seek (abfd, (file_ptr) where, SEEK_SET); |
3277 | bfd_bread (b, (bfd_size_type) 4, abfd); | |
d643799d | 3278 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
3279 | } |
3280 | ||
252b5132 | 3281 | static unsigned int |
1579bae1 | 3282 | pe_as32 (void *ptr) |
252b5132 RH |
3283 | { |
3284 | unsigned char *b = ptr; | |
775cabad | 3285 | |
d643799d | 3286 | return b[0] + (b[1] << 8) + (b[2] << 16) + (b[3] << 24); |
252b5132 RH |
3287 | } |
3288 | ||
b34976b6 | 3289 | bfd_boolean |
1579bae1 | 3290 | pe_implied_import_dll (const char *filename) |
252b5132 RH |
3291 | { |
3292 | bfd *dll; | |
6ca0987a KT |
3293 | bfd_vma pe_header_offset, opthdr_ofs, num_entries, i; |
3294 | bfd_vma export_rva, export_size, nsections, secptr, expptr; | |
3295 | bfd_vma exp_funcbase; | |
47639182 AM |
3296 | unsigned char *expdata; |
3297 | char *erva; | |
c7e2358a | 3298 | bfd_vma name_rvas, nexp; |
91d6fa6a | 3299 | const char *dllname; |
939ba9d0 NC |
3300 | /* Initialization with start > end guarantees that is_data |
3301 | will not be set by mistake, and avoids compiler warning. */ | |
6ca0987a KT |
3302 | bfd_vma data_start = 1; |
3303 | bfd_vma data_end = 0; | |
3304 | bfd_vma rdata_start = 1; | |
3305 | bfd_vma rdata_end = 0; | |
3306 | bfd_vma bss_start = 1; | |
3307 | bfd_vma bss_end = 0; | |
9d8e8f44 | 3308 | int from; |
252b5132 RH |
3309 | |
3310 | /* No, I can't use bfd here. kernel32.dll puts its export table in | |
5cc18311 | 3311 | the middle of the .rdata section. */ |
c6c37250 | 3312 | dll = bfd_openr (filename, pe_details->target_name); |
252b5132 RH |
3313 | if (!dll) |
3314 | { | |
df5f2391 | 3315 | einfo (_("%X%P: open %s: %E\n"), filename); |
b34976b6 | 3316 | return FALSE; |
252b5132 | 3317 | } |
775cabad | 3318 | |
86b1cc60 | 3319 | /* PEI dlls seem to be bfd_objects. */ |
252b5132 RH |
3320 | if (!bfd_check_format (dll, bfd_object)) |
3321 | { | |
df5f2391 | 3322 | einfo (_("%X%P: %s: this doesn't appear to be a DLL\n"), filename); |
b34976b6 | 3323 | return FALSE; |
252b5132 RH |
3324 | } |
3325 | ||
d0069cab | 3326 | /* Get pe_header, optional header and numbers of directory entries. */ |
252b5132 RH |
3327 | pe_header_offset = pe_get32 (dll, 0x3c); |
3328 | opthdr_ofs = pe_header_offset + 4 + 20; | |
99ad8390 NC |
3329 | #ifdef pe_use_x86_64 |
3330 | num_entries = pe_get32 (dll, opthdr_ofs + 92 + 4 * 4); /* & NumberOfRvaAndSizes. */ | |
3331 | #else | |
252b5132 | 3332 | num_entries = pe_get32 (dll, opthdr_ofs + 92); |
99ad8390 | 3333 | #endif |
775cabad | 3334 | |
d0069cab TG |
3335 | /* No import or export directory entry. */ |
3336 | if (num_entries < 1) | |
b34976b6 | 3337 | return FALSE; |
775cabad | 3338 | |
99ad8390 NC |
3339 | #ifdef pe_use_x86_64 |
3340 | export_rva = pe_get32 (dll, opthdr_ofs + 96 + 4 * 4); | |
3341 | export_size = pe_get32 (dll, opthdr_ofs + 100 + 4 * 4); | |
3342 | #else | |
252b5132 RH |
3343 | export_rva = pe_get32 (dll, opthdr_ofs + 96); |
3344 | export_size = pe_get32 (dll, opthdr_ofs + 100); | |
99ad8390 | 3345 | #endif |
9382254d | 3346 | |
d0069cab TG |
3347 | /* No export table - nothing to export. */ |
3348 | if (export_size == 0) | |
3349 | return FALSE; | |
3350 | ||
252b5132 RH |
3351 | nsections = pe_get16 (dll, pe_header_offset + 4 + 2); |
3352 | secptr = (pe_header_offset + 4 + 20 + | |
3353 | pe_get16 (dll, pe_header_offset + 4 + 16)); | |
3354 | expptr = 0; | |
775cabad | 3355 | |
1579bae1 | 3356 | /* Get the rva and size of the export section. */ |
d643799d | 3357 | for (i = 0; i < nsections; i++) |
252b5132 RH |
3358 | { |
3359 | char sname[8]; | |
6ca0987a KT |
3360 | bfd_vma secptr1 = secptr + 40 * i; |
3361 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
3362 | bfd_vma vsize = pe_get32 (dll, secptr1 + 16); | |
3363 | bfd_vma fptr = pe_get32 (dll, secptr1 + 20); | |
775cabad | 3364 | |
db09f25b AM |
3365 | bfd_seek (dll, (file_ptr) secptr1, SEEK_SET); |
3366 | bfd_bread (sname, (bfd_size_type) 8, dll); | |
775cabad | 3367 | |
d643799d | 3368 | if (vaddr <= export_rva && vaddr + vsize > export_rva) |
252b5132 RH |
3369 | { |
3370 | expptr = fptr + (export_rva - vaddr); | |
3371 | if (export_rva + export_size > vaddr + vsize) | |
3372 | export_size = vsize - (export_rva - vaddr); | |
3373 | break; | |
3374 | } | |
3375 | } | |
3376 | ||
939ba9d0 | 3377 | /* Scan sections and store the base and size of the |
1579bae1 | 3378 | data and bss segments in data/base_start/end. */ |
939ba9d0 NC |
3379 | for (i = 0; i < nsections; i++) |
3380 | { | |
6ca0987a KT |
3381 | bfd_vma secptr1 = secptr + 40 * i; |
3382 | bfd_vma vsize = pe_get32 (dll, secptr1 + 8); | |
3383 | bfd_vma vaddr = pe_get32 (dll, secptr1 + 12); | |
3384 | bfd_vma flags = pe_get32 (dll, secptr1 + 36); | |
939ba9d0 NC |
3385 | char sec_name[9]; |
3386 | ||
3387 | sec_name[8] = '\0'; | |
3388 | bfd_seek (dll, (file_ptr) secptr1 + 0, SEEK_SET); | |
3389 | bfd_bread (sec_name, (bfd_size_type) 8, dll); | |
3390 | ||
3391 | if (strcmp(sec_name,".data") == 0) | |
3392 | { | |
3393 | data_start = vaddr; | |
3394 | data_end = vaddr + vsize; | |
3395 | ||
661a32f7 DS |
3396 | if (pe_dll_extra_pe_debug) |
3397 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3398 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3399 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
661a32f7 DS |
3400 | } |
3401 | else if (strcmp(sec_name,".rdata") == 0) | |
3402 | { | |
3403 | rdata_start = vaddr; | |
3404 | rdata_end = vaddr + vsize; | |
3405 | ||
939ba9d0 NC |
3406 | if (pe_dll_extra_pe_debug) |
3407 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3408 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3409 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
1579bae1 | 3410 | } |
939ba9d0 NC |
3411 | else if (strcmp (sec_name,".bss") == 0) |
3412 | { | |
3413 | bss_start = vaddr; | |
3414 | bss_end = vaddr + vsize; | |
3415 | ||
3416 | if (pe_dll_extra_pe_debug) | |
3417 | printf ("%s %s: 0x%08lx-0x%08lx (0x%08lx)\n", | |
6ca0987a KT |
3418 | __FUNCTION__, sec_name, (unsigned long) vaddr, |
3419 | (unsigned long) (vaddr + vsize), (unsigned long) flags); | |
939ba9d0 NC |
3420 | } |
3421 | } | |
3422 | ||
1579bae1 | 3423 | expdata = xmalloc (export_size); |
db09f25b AM |
3424 | bfd_seek (dll, (file_ptr) expptr, SEEK_SET); |
3425 | bfd_bread (expdata, (bfd_size_type) export_size, dll); | |
47639182 | 3426 | erva = (char *) expdata - export_rva; |
252b5132 RH |
3427 | |
3428 | if (pe_def_file == 0) | |
d643799d | 3429 | pe_def_file = def_file_empty (); |
252b5132 | 3430 | |
d643799d KH |
3431 | nexp = pe_as32 (expdata + 24); |
3432 | name_rvas = pe_as32 (expdata + 32); | |
939ba9d0 | 3433 | exp_funcbase = pe_as32 (expdata + 28); |
775cabad | 3434 | |
939ba9d0 NC |
3435 | /* Use internal dll name instead of filename |
3436 | to enable symbolic dll linking. */ | |
91d6fa6a | 3437 | dllname = erva + pe_as32 (expdata + 12); |
939ba9d0 | 3438 | |
a35bc64f NC |
3439 | /* Check to see if the dll has already been added to |
3440 | the definition list and if so return without error. | |
3441 | This avoids multiple symbol definitions. */ | |
91d6fa6a | 3442 | if (def_get_module (pe_def_file, dllname)) |
a35bc64f NC |
3443 | { |
3444 | if (pe_dll_extra_pe_debug) | |
91d6fa6a | 3445 | printf ("%s is already loaded\n", dllname); |
a35bc64f NC |
3446 | return TRUE; |
3447 | } | |
3448 | ||
9d8e8f44 EB |
3449 | /* This is an optimized version of the insertion loop, which avoids lots of |
3450 | calls to realloc and memmove from def_file_add_import. */ | |
3451 | if ((from = def_file_add_import_from (pe_def_file, nexp, | |
3452 | erva + pe_as32 (erva + name_rvas), | |
3453 | dllname, 0, NULL, NULL)) >= 0) | |
3454 | { | |
3455 | for (i = 0; i < nexp; i++) | |
3456 | { | |
3457 | /* Pointer to the names vector. */ | |
3458 | bfd_vma name_rva = pe_as32 (erva + name_rvas + i * 4); | |
3459 | def_file_import *imp; | |
3460 | /* Pointer to the function address vector. */ | |
3461 | bfd_vma func_rva = pe_as32 (erva + exp_funcbase + i * 4); | |
3462 | /* is_data is true if the address is in the data, rdata or bss | |
3463 | segment. */ | |
3464 | const int is_data = | |
3465 | (func_rva >= data_start && func_rva < data_end) | |
3466 | || (func_rva >= rdata_start && func_rva < rdata_end) | |
3467 | || (func_rva >= bss_start && func_rva < bss_end); | |
3468 | ||
3469 | imp = def_file_add_import_at (pe_def_file, from + i, erva + name_rva, | |
3470 | dllname, i, NULL, NULL); | |
3471 | /* Mark symbol type. */ | |
3472 | imp->data = is_data; | |
3473 | ||
3474 | if (pe_dll_extra_pe_debug) | |
3475 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", | |
3476 | __FUNCTION__, dllname, erva + name_rva, | |
3477 | (unsigned long) func_rva, is_data ? "(data)" : ""); | |
3478 | } | |
3479 | ||
3480 | return TRUE; | |
3481 | } | |
3482 | ||
939ba9d0 | 3483 | /* Iterate through the list of symbols. */ |
d643799d | 3484 | for (i = 0; i < nexp; i++) |
252b5132 | 3485 | { |
939ba9d0 | 3486 | /* Pointer to the names vector. */ |
6ca0987a | 3487 | bfd_vma name_rva = pe_as32 (erva + name_rvas + i * 4); |
252b5132 | 3488 | def_file_import *imp; |
1579bae1 | 3489 | /* Pointer to the function address vector. */ |
6ca0987a | 3490 | bfd_vma func_rva = pe_as32 (erva + exp_funcbase + i * 4); |
939ba9d0 NC |
3491 | int is_data = 0; |
3492 | ||
3493 | /* Skip unwanted symbols, which are | |
3494 | exported in buggy auto-import releases. */ | |
17f73277 | 3495 | if (! CONST_STRNEQ (erva + name_rva, "__nm_")) |
6c19b93b | 3496 | { |
db17156e | 3497 | int is_dup = 0; |
6c19b93b | 3498 | /* is_data is true if the address is in the data, rdata or bss |
661a32f7 | 3499 | segment. */ |
6c19b93b | 3500 | is_data = |
939ba9d0 | 3501 | (func_rva >= data_start && func_rva < data_end) |
661a32f7 | 3502 | || (func_rva >= rdata_start && func_rva < rdata_end) |
939ba9d0 NC |
3503 | || (func_rva >= bss_start && func_rva < bss_end); |
3504 | ||
3505 | imp = def_file_add_import (pe_def_file, erva + name_rva, | |
6e230cc2 | 3506 | dllname, i, NULL, NULL, &is_dup); |
6c19b93b AM |
3507 | /* Mark symbol type. */ |
3508 | if (!is_dup) | |
3509 | imp->data = is_data; | |
1579bae1 | 3510 | |
6c19b93b | 3511 | if (pe_dll_extra_pe_debug) |
939ba9d0 | 3512 | printf ("%s dll-name: %s sym: %s addr: 0x%lx %s\n", |
91d6fa6a | 3513 | __FUNCTION__, dllname, erva + name_rva, |
6ca0987a | 3514 | (unsigned long) func_rva, is_data ? "(data)" : ""); |
6c19b93b | 3515 | } |
252b5132 RH |
3516 | } |
3517 | ||
b34976b6 | 3518 | return TRUE; |
252b5132 RH |
3519 | } |
3520 | ||
88183869 DK |
3521 | void |
3522 | pe_output_file_set_long_section_names (bfd *abfd) | |
3523 | { | |
3524 | if (pe_use_coff_long_section_names < 0) | |
3525 | return; | |
3526 | if (!bfd_coff_set_long_section_names (abfd, pe_use_coff_long_section_names)) | |
df5f2391 | 3527 | einfo (_("%X%P: error: can't use long section names on this arch\n")); |
88183869 DK |
3528 | } |
3529 | ||
775cabad NC |
3530 | /* These are the main functions, called from the emulation. The first |
3531 | is called after the bfds are read, so we can guess at how much space | |
3532 | we need. The second is called after everything is placed, so we | |
3533 | can put the right values in place. */ | |
252b5132 RH |
3534 | |
3535 | void | |
1579bae1 | 3536 | pe_dll_build_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3537 | { |
c6c37250 | 3538 | pe_dll_id_target (bfd_get_target (abfd)); |
88183869 | 3539 | pe_output_file_set_long_section_names (abfd); |
c1711530 | 3540 | process_def_file_and_drectve (abfd, info); |
252b5132 | 3541 | |
0e1862bb | 3542 | if (pe_def_file->num_exports == 0 && !bfd_link_pic (info)) |
2b817be1 NC |
3543 | return; |
3544 | ||
252b5132 | 3545 | generate_edata (abfd, info); |
c6c37250 | 3546 | build_filler_bfd (1); |
88183869 | 3547 | pe_output_file_set_long_section_names (filler_bfd); |
c6c37250 DD |
3548 | } |
3549 | ||
3550 | void | |
1579bae1 | 3551 | pe_exe_build_sections (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED) |
c6c37250 DD |
3552 | { |
3553 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3554 | pe_output_file_set_long_section_names (abfd); |
c6c37250 | 3555 | build_filler_bfd (0); |
88183869 | 3556 | pe_output_file_set_long_section_names (filler_bfd); |
252b5132 RH |
3557 | } |
3558 | ||
3559 | void | |
1579bae1 | 3560 | pe_dll_fill_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 3561 | { |
c6c37250 | 3562 | pe_dll_id_target (bfd_get_target (abfd)); |
88183869 | 3563 | pe_output_file_set_long_section_names (abfd); |
252b5132 RH |
3564 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
3565 | ||
3566 | generate_reloc (abfd, info); | |
3567 | if (reloc_sz > 0) | |
3568 | { | |
3569 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
3570 | ||
3571 | /* Resize the sections. */ | |
38975f9e | 3572 | lang_reset_memory_regions (); |
e9ee469a | 3573 | lang_size_sections (NULL, TRUE); |
252b5132 RH |
3574 | |
3575 | /* Redo special stuff. */ | |
3576 | ldemul_after_allocation (); | |
3577 | ||
3578 | /* Do the assignments again. */ | |
2f65ac72 | 3579 | lang_do_assignments (lang_final_phase_enum); |
252b5132 RH |
3580 | } |
3581 | ||
3582 | fill_edata (abfd, info); | |
3583 | ||
0e1862bb | 3584 | if (bfd_link_dll (info)) |
2b817be1 | 3585 | pe_data (abfd)->dll = 1; |
252b5132 RH |
3586 | |
3587 | edata_s->contents = edata_d; | |
3588 | reloc_s->contents = reloc_d; | |
3589 | } | |
c6c37250 DD |
3590 | |
3591 | void | |
1579bae1 | 3592 | pe_exe_fill_sections (bfd *abfd, struct bfd_link_info *info) |
c6c37250 DD |
3593 | { |
3594 | pe_dll_id_target (bfd_get_target (abfd)); | |
88183869 | 3595 | pe_output_file_set_long_section_names (abfd); |
c6c37250 DD |
3596 | image_base = pe_data (abfd)->pe_opthdr.ImageBase; |
3597 | ||
3598 | generate_reloc (abfd, info); | |
3599 | if (reloc_sz > 0) | |
3600 | { | |
3601 | bfd_set_section_size (filler_bfd, reloc_s, reloc_sz); | |
3602 | ||
3603 | /* Resize the sections. */ | |
38975f9e | 3604 | lang_reset_memory_regions (); |
e9ee469a | 3605 | lang_size_sections (NULL, TRUE); |
c6c37250 DD |
3606 | |
3607 | /* Redo special stuff. */ | |
3608 | ldemul_after_allocation (); | |
3609 | ||
3610 | /* Do the assignments again. */ | |
2f65ac72 | 3611 | lang_do_assignments (lang_final_phase_enum); |
c6c37250 DD |
3612 | } |
3613 | reloc_s->contents = reloc_d; | |
3614 | } | |
ff2bdb9c CF |
3615 | |
3616 | bfd_boolean | |
3617 | pe_bfd_is_dll (bfd *abfd) | |
3618 | { | |
3619 | return (bfd_get_format (abfd) == bfd_object | |
6c19b93b AM |
3620 | && obj_pe (abfd) |
3621 | && pe_data (abfd)->dll); | |
ff2bdb9c | 3622 | } |